Tag Archives: rotary screw air compressor

China high quality Hot Selling Rotary Screw Type Air Cooled Oil Free Compressor with Low Price best air compressor

Product Description

Hot Selling Rotary Screw Type Air Cooled Oil Free Compressor With Low Price

Product Description

Oil free screw air compressors are widely used in industries that require high quality air sources such as: pharmaceutical, food, electronics, chemical, packaging, etc. 100% pure compressed air is a necessary procedure to guarantee satisfactory crafts and product quality, which ensures the production of high-end products safely and risk-free.
The lubrication system of an oil free screw air compressor is an individual fuel recycling unit. The compression chamber and the bearings were separated by a set of sealed high-performance mechanical assembly. The lubricating oil can only flow in the enclosed area and is prevented to enter the compression chamber, which only contains 100% pure compressed oil-free air. The users could obtain 100% pure compressed air with some slight post-treatment of water and dust removal

Model No.	Capacity FAD(m3/min)			Motor Power (Kw)	Noisel Level (dB)	Outlet Diameter	Dimension(mm)			Weight (kg)
Model No.	0.7MPa	0.8MPa	1.0MPa	Motor Power (Kw)	Noisel Level (dB)	Outlet Diameter	L	W	H	Weight (kg)
WFS-7.5A	1.3	1.2	/	7.5	60	G3/4	1100	845	1260	520
WFS-11A	1.6	1.5	1.4	11	60	G3/4	1100	845	1260	580
WFS-15A	2.5	2.3	2	15	65	G3/4	1520	1100	1400	620
WFS-18.5A	3.3	3.1	2.5	18.5	65	G1	1520	1100	1400	720
WFS-22A	3.7	3.5	3	22	68	G1	1520	1100	1400	830
WFS-30A	5.3	5	4.3	30	71	G1-1/2	1760	1250	1600	980
WFS-37A	6.2	5.9	5	37	71	G1-1/2	1760	1250	1600	1100
WFS-45A	7.5	7	6	45	74	G1-1/2	1900	1250	1360	1250
WFS-55A	10	9.5	7.9	55	74	G2	1900	1250	1360	1450
WFS-75A	13	12.5	10	75	75	G2	1900	1250	1360	1600
WFS-90A	15	13.5	12.8	90	75	G2	2000	1250	1360	2000
WFS-110A	20	18.5	16.5	110	78	DN65	2100	1850	1700	2500
WFS-132A	23.5	23	20	132	78	DN65	2100	1850	1700	2650
WFS-160A	26	24	23	160	80	DN80	2300	1900	1900	2800
WFS-180A	32.5	31	28	180	82	DN80	2300	1900	1900	3000
WFS-250A	42	40	38	250	85	DN100	3200	2100	2000	4800

Product Details

Advantage:

Oil Free —-Totally Oil Free:
Oil free water lubrication screw air compressor is a kind of compressor that provides clean, pollution-free, 100% oil free screw air compressor, its zero emission can protect the environment efficiently.
Water —- Lubrication, Sealing and Cooling:
Ideal isothermal compression     High efficiency (large air delivery)

Low temperature compression    No need the intercooler and after cooler

Low rotation speed             Low noise, low vibration and no need the overdrive gear

Low viscosity of lubrication water   Easy to be separated with the air
All stainless steel pipe : Simple ,non-corrosive,non-polluting,high reliablity

Ceritifications

Company Information

Windbell Co. Ltd. was established in 2006. It is a high-tech company mainly producing Screw Air Compressor.

Located in HangZhou National High and New Technology Industries Development Zone, the company has more than 100 employees equipped with 50 advanced testing machines working in the plant area of 20000 square meter. A high profile R&D team with experience in developing products with GHH and Rotor, has more than 20 patents granted. The company can produce more than 4000 Air Compressor every year.

We believe that without an advanced quality management system you cannot make high quality products. With ISO9001 and ISO14001 certifications, the company aims to be a CHINAMFG in offering consumers efficient, energy-saving, and environment-friendly solutions in the application of air compressor. Based on its R&D output, the company has successfully applied its solutions to the field of mining, tunneling, outdoor construction and its technology also facilitates the production of medical oxygen generators and textile equipment. The Screw Air Compressor are widely sold to Southeast Asia, Central Asia, Middle East, Africa, and South America…
FAQ

Q1: Why customer choose us?
A: CHINAMFG MACHINERY CO., LTD., with 13 years old history, we are specialized in Screw Air Compressor. We warmly welcome your small trial order for quality or market test.
Q2: Are you a manufacturer or trading company?
A: We are professional manufacturer with big modern factory in HangZhou,China. Both OEM & ODM service can be accepted.Pls check Our Company Profile.
Q3: What’s your delivery time?
A: Generally 15 to 20 days, if urgently order, pls contact our sales in advance.
Q4: How long is your air compressor warranty?
A: One year for the whole machine and 2 years for screw air end, except consumble spare parts.
Q5: How long could your air compressor be used?
A: Generally, more than 10 years.
Q6: What’s payment term?
A: T/T, L/C, Western Union, Credit Card, and etc. Also we could accept USD, RMB, Euro and other currency.
Q7: How about your customer service?
A: 24 hours on-line service available. 48hours problem sovled promise.
Q8: How about your after-sales service?
A: 1. Provide customers with intallation and commissioning online instructions.
2. Well-trained engineers available to overseas service.

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Lubrication Style:	Oil-free
Cooling System:	Water Cooling
Power Source:	AC Power
Structure Type:	Closed Type
Installation Type:	Stationary Type
Type:	Single Screw Compressor

Customization:	Available \|

air compressor

Are There Specific Filtration Requirements for Oil-Free Compressors?

Yes, oil-free compressors have specific filtration requirements to ensure the quality and purity of the compressed air output. These filtration requirements are designed to address the unique characteristics of oil-free compressors and the potential contaminants that can be present in the intake air. Here’s a detailed explanation of the specific filtration requirements for oil-free compressors:

1. Pre-Filtration:

Pre-filtration is the first stage of filtration in oil-free compressors and is designed to remove larger particles, such as dust, dirt, and debris, from the intake air. These particles can enter the compressor and cause damage to internal components or affect the performance of downstream filtration stages. Pre-filters typically consist of pleated or mesh filters that capture particles of various sizes. The efficiency of pre-filters is usually specified in terms of their particle size removal capability, such as 5 microns or 10 microns.

2. Coalescing Filtration:

The coalescing filtration stage in oil-free compressors is responsible for removing smaller particles and coalescing water vapor into droplets for subsequent removal. This stage is crucial in ensuring that the compressed air remains free from fine particles and moisture, which can cause contamination and corrosion issues. Coalescing filters are designed with special media that capture and combine small particles and water droplets, allowing them to be easily separated from the compressed air. The efficiency of coalescing filters is typically specified in terms of their particulate removal capability and moisture removal efficiency, such as 0.01 microns and 99.9% respectively.

3. Activated Carbon Filtration:

Activated carbon filtration is often employed as a final stage in the filtration process of oil-free compressors. Activated carbon filters help eliminate odors and absorb any remaining oil vapors or hydrocarbons that might have bypassed the previous filtration stages. These filters contain activated carbon granules with a high surface area, allowing them to adsorb and trap odor-causing compounds and trace amounts of oil vapor. The efficiency of activated carbon filters is typically specified based on their odor removal capacity and oil vapor adsorption capacity.

It’s important to note that the specific filtration requirements for oil-free compressors may vary depending on the application and the desired air quality standards. Industries such as food and beverage, pharmaceuticals, electronics manufacturing, and painting often have more stringent filtration requirements to meet their specific air purity needs. In such cases, additional filtration stages, such as sterile filters or high-efficiency particulate air (HEPA) filters, may be incorporated to achieve the desired level of air quality.

Complying with industry standards and guidelines, such as ISO 8573, can provide guidance on the appropriate filtration requirements for oil-free compressors. These standards define specific limits for contaminants in compressed air, including oil content, particulate matter, and moisture, and can help determine the necessary filtration stages and their efficiency ratings.

By implementing the appropriate filtration requirements, oil-free compressors can ensure that the compressed air produced is clean, dry, and free from contaminants, meeting the specific air quality needs of various applications.

air compressor

How Do You Troubleshoot Common Problems with Oil-Free Compressor Systems?

To troubleshoot common problems with oil-free compressor systems, follow these steps:

1. Check Power Supply:

Ensure that the compressor system is properly connected to a reliable power supply. Check for any tripped circuit breakers or blown fuses. Verify that the power switch is in the “on” position.

2. Inspect Air Filters:

Examine the air filters to see if they are dirty or clogged. Restricted airflow due to dirty filters can cause the compressor to overheat or operate inefficiently. Clean or replace the filters as necessary.

3. Check for Air Leaks:

Inspect the entire compressed air system for air leaks. Leaks can lead to reduced system pressure and inefficient operation. Use a leak detection solution or an ultrasonic leak detector to locate and repair any leaks in the system.

4. Monitor Pressure Gauges:

Observe the pressure gauges on the compressor system. If the pressure is consistently below the desired level, it could indicate a problem with the compressor’s output or a leak in the system. Ensure that the pressure relief valves are not open or malfunctioning.

5. Check for Excessive Heat:

Monitor the temperature of the compressor and associated components. If the system is running excessively hot, it may indicate a problem with cooling or lubrication. Ensure that the cooling fans are operating correctly and that the compressor is receiving proper lubrication, if applicable.

6. Inspect Drains and Condensate Management:

Check the drains and condensate management system for proper functioning. Accumulated condensate can cause issues such as water contamination or pressure drops. Ensure that drains are clear and functioning, and that the condensate management system is operating as intended.

7. Review Maintenance Records:

Refer to the maintenance records of the compressor system. Ensure that routine maintenance tasks, such as filter replacements, oil changes (if applicable), and component inspections, have been performed according to the manufacturer’s recommendations. Lack of proper maintenance can contribute to various issues in compressor systems.

8. Consult Manufacturer’s Documentation:

Refer to the manufacturer’s documentation, such as the user manual or troubleshooting guide, for specific guidance on diagnosing and resolving common problems with the oil-free compressor system. Manufacturers often provide detailed troubleshooting steps and recommendations tailored to their specific equipment.

9. Seek Professional Assistance:

If the troubleshooting steps do not resolve the issue or if you are uncertain about performing any maintenance or repairs, it is advisable to seek professional assistance. Contact the manufacturer’s customer support or consult a qualified technician with expertise in oil-free compressor systems.

Remember to prioritize safety when troubleshooting compressor systems. Follow proper lockout/tagout procedures and adhere to all safety guidelines provided by the manufacturer. air compressor

How Does an Oil-Free Air Compressor Work?

An oil-free air compressor, also known as an oilless air compressor, operates using alternative methods to achieve compression without the need for lubricating oil. These compressors employ various techniques to deliver clean, oil-free compressed air. Here’s a detailed explanation of how an oil-free air compressor works:

1. Dry Compression:

In oil-free air compressors, the compression chamber is designed to operate without any oil present. The compression process starts with the intake stroke, where ambient air is drawn into the compressor through an inlet valve. The air is then compressed in the compression chamber without any oil lubrication.

2. Friction Reduction:

Since there is no oil in the compression chamber, special measures are taken to reduce friction and wear between the moving parts. These measures include the use of specialized materials, coatings, and surface treatments on the compressor components. These friction-reducing techniques minimize the need for lubrication and allow for efficient compression.

3. Piston Rings and Seals:

Oil-free compressors utilize advanced piston rings and seals to provide effective sealing without the need for oil lubrication. These rings and seals are designed to reduce internal leakage and ensure efficient compression. They help maintain the compression efficiency by minimizing air leakage during the compression process.

4. Cooling Mechanisms:

Oil-free air compressors often incorporate cooling mechanisms to dissipate the heat generated during compression. This helps prevent overheating and ensures the compressor operates within acceptable temperature limits. Common cooling methods include water cooling and air cooling. Water-cooled compressors use a water jacket or a separate cooling circuit to remove heat, while air-cooled compressors rely on fans and heat sinks to cool the compressor.

5. Filtration:

Oil-free compressors typically incorporate effective air filtration systems to remove contaminants, such as dust, particles, and moisture, from the intake air. These filtration systems ensure that the compressed air produced is clean and free from impurities. Depending on the application, additional filtration equipment, such as coalescing filters or activated carbon filters, may be employed to achieve specific air quality requirements.

6. Control and Safety Systems:

Oil-free air compressors are equipped with control and safety systems to monitor and regulate the compressor’s operation. These systems can include pressure switches, temperature sensors, safety valves, and control panels. They help maintain optimal operating conditions, protect the compressor from excessive pressures or temperatures, and provide safety features to prevent damage or accidents.

By employing these techniques and components, oil-free air compressors achieve compression without the need for lubricating oil. This results in clean, oil-free compressed air that is suitable for applications where oil contamination could be problematic, such as in industries like food processing, pharmaceuticals, electronics, and painting.

It’s important to note that the specific design and operation of oil-free air compressors may vary depending on the manufacturer and model. Therefore, it’s recommended to consult the manufacturer’s documentation and guidelines for detailed information on how a particular oil-free compressor works.

China high quality Hot Selling Rotary Screw Type Air Cooled Oil Free Compressor with Low Price best air compressor
editor by CX 2024-05-15

China best Dww Series Electric Oil Free Rotary Screw Industry Air Compressor Manufacturer mini air compressor

Product Description

Industrial Silent/Mute Medical Dry Oil Free Oilless Direct Drive Rotary Double Screw Type Air Compressor Advantages

1.Clean air 1, China
Our factory is located in No. 366, YangzhuangBang Street, Pingxing Rd., Xindai Town, HangZhou, ZHangZhoug Province, China

Q3: Warranty terms of your machine?
A3: Two years warranty for the machine and technical support according to your needs.

Q4: Will you provide some spare parts of the machines?
A4: Yes, of course.

Q5: How long will you take to arrange production?
A5: 380V 50HZ we can delivery the goods within 10 days. Other electricity or other color we will delivery within 22 days

Q6: Can you accept OEM orders?
A6: Yes, with professional design team, OEM orders are highly welcome

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Lubrication Style:	Oil-free
Cooling System:	Air Cooling and Water Cooling
Power Source:	AC Power

Customization:	Available \|

.shipping-cost-tm .tm-status-off{background: none;padding:0;color: #1470cc}

Shipping Cost: Estimated freight per unit.	about shipping cost and estimated delivery time.

Payment Method:
	Initial Payment Full Payment

Currency:	US$

Return&refunds:	You can apply for a refund up to 30 days after receipt of the products.

air compressor

How Do Oil-Free Compressors Contribute to Clean Compressed Air?

Oil-free compressors play a crucial role in delivering clean compressed air for various applications. Their design and operation eliminate the risk of oil contamination, ensuring the quality and purity of the compressed air output. Here’s a detailed explanation of how oil-free compressors contribute to providing clean compressed air:

1. Elimination of Oil Contamination:

The primary advantage of oil-free compressors is that they eliminate the presence of oil in the compressed air stream. In traditional oil-lubricated compressors, lubricating oil is used to reduce friction, cool the compressor, and seal internal components. However, this oil can contaminate the compressed air, leading to potential issues in sensitive applications such as food and beverage production, pharmaceuticals, electronics manufacturing, and painting. Oil-free compressors eliminate the risk of oil carryover, ensuring that the compressed air remains free from oil contaminants.

2. Advanced Filtration Systems:

Oil-free compressors are equipped with advanced filtration systems to remove particulates, moisture, and other contaminants from the intake air. These filtration systems typically consist of pre-filters, coalescing filters, and activated carbon filters. Pre-filters remove larger particles, while coalescing filters capture smaller particles and coalesce water vapor into droplets. Activated carbon filters help eliminate odors and absorb any remaining oil vapors or hydrocarbons. These filtration stages work together to ensure that the compressed air is clean, dry, and free from contaminants.

3. Enhanced Air Quality:

By eliminating oil contamination and incorporating effective filtration systems, oil-free compressors contribute to enhanced air quality in compressed air systems. Clean compressed air is essential in applications where air purity is critical to product quality, process integrity, and the health and safety of personnel. For example, in the food and beverage industry, oil-free compressors help maintain the purity of compressed air used in food processing, packaging, and storage, preventing any potential product contamination. Similarly, in pharmaceutical manufacturing, oil-free compressors ensure that the compressed air meets the stringent air quality standards required for drug production.

4. Reduced Maintenance Requirements:

Oil-free compressors have lower maintenance requirements compared to oil-lubricated compressors. The absence of oil means there is no need for oil changes, oil filter replacements, or oil analysis. This not only reduces maintenance costs but also eliminates the risk of oil leaks or oil-related component failures. Furthermore, without oil in the system, there is no need for oil-water separation equipment, reducing the complexity and maintenance needs of the compressed air system. The simplified maintenance routine contributes to the overall cleanliness and reliability of the compressed air supply.

5. Compliance with Industry Standards:

Oil-free compressors are designed and built to comply with industry standards and regulations related to air quality and purity. These standards, such as ISO 8573, define specific limits for contaminants in compressed air, including oil content, particulate matter, and moisture. Oil-free compressors are engineered to meet or exceed these standards, ensuring that the compressed air generated is suitable for use in critical applications. Compliance with industry standards provides assurance to users that the compressed air is clean and meets the required specifications.

Oil-free compressors are highly valued in industries where clean compressed air is essential. Their ability to eliminate oil contamination, incorporate advanced filtration systems, deliver enhanced air quality, reduce maintenance requirements, and comply with industry standards makes them an ideal choice for applications that demand clean and reliable compressed air.

air compressor

What Are the Energy Efficiency Benefits of Oil-Free Air Compressors?

Oil-free air compressors offer several energy efficiency benefits. Here’s a detailed explanation of the advantages of oil-free compressors in terms of energy efficiency:

1. No Energy Losses from Oil Carryover:

Oil-lubricated compressors require oil to lubricate the moving parts, which can result in oil carryover into the compressed air system. This oil carryover can lead to energy losses as it accumulates in filters, pipes, and other components. Oil-free compressors eliminate this issue by not using oil in the compression process, minimizing energy losses associated with oil carryover and reducing the need for additional energy-consuming filtration equipment to remove oil from the compressed air.

2. Reduced Friction and Mechanical Losses:

Oil-free compressors typically have advanced designs and technologies that minimize friction and mechanical losses during the compression process. The absence of oil eliminates the need for oil seals, lubrication systems, and associated energy-consuming components. This reduction in friction and mechanical losses improves the overall energy efficiency of the compressor, resulting in lower energy consumption and operating costs.

3. Optimized Air Delivery:

Oil-free compressors are designed to deliver compressed air directly without the need for additional oil removal equipment. This streamlined process eliminates the pressure drops and energy losses associated with oil separation and filtration. As a result, oil-free compressors can provide more efficient air delivery, ensuring that the compressed air reaches the intended applications with minimal energy losses.

4. Variable Speed Drive (VSD) Capability:

Many oil-free compressors are equipped with variable speed drive (VSD) technology, which allows the compressor to adjust its speed based on the actual demand for compressed air. By operating at lower speeds during periods of lower demand, VSD-equipped compressors can significantly reduce energy consumption compared to fixed-speed compressors that run at a constant speed regardless of the demand. VSD technology enables oil-free compressors to match the output precisely to the required compressed air load, resulting in energy savings and improved efficiency.

5. Improved System Control and Monitoring:

Oil-free compressors often come with advanced control and monitoring systems that enable precise management of the compression process. These systems allow for optimized operation, including load balancing, pressure control, and energy-saving modes. By closely monitoring and controlling various parameters, such as air pressure, temperature, and power consumption, the compressor can operate at the most energy-efficient levels, minimizing wasted energy and maximizing overall system efficiency.

6. Longer Service Life and Maintenance Intervals:

Oil-free compressors tend to have longer service life and maintenance intervals compared to oil-lubricated compressors. The absence of oil reduces the accumulation of deposits, contaminants, and wear on components, resulting in extended equipment life and reduced maintenance requirements. Longer service intervals mean less downtime for maintenance, allowing the compressor to operate at peak efficiency for longer periods, ultimately saving energy and reducing operational costs.

Overall, oil-free air compressors offer significant energy efficiency benefits due to reduced energy losses from oil carryover, minimized friction and mechanical losses, optimized air delivery, variable speed drive capability, improved system control and monitoring, and extended service life. These advantages make oil-free compressors an attractive option for industries and applications where energy efficiency and cost savings are paramount concerns.

air compressor

What Industries Commonly Use Oil-Free Air Compressors?

Oil-free air compressors are utilized in various industries where clean and oil-free compressed air is essential for specific applications. These industries rely on oil-free compressors to ensure product quality, maintain equipment integrity, and meet industry regulations. Here’s a detailed explanation of the industries commonly using oil-free air compressors:

1. Food and Beverage:

The food and beverage industry extensively employs oil-free air compressors. These compressors are used in processes such as food packaging, filling, bottling, and product drying. Oil-free compressors prevent oil contamination, ensuring product quality, food safety, and compliance with industry regulations. They help maintain the freshness of food products, prevent flavor or odor contamination, and minimize the risk of product spoilage.

2. Pharmaceutical and Healthcare:

In the pharmaceutical and healthcare sectors, oil-free air compressors are vital for maintaining the purity and integrity of medical gases, powering respiratory devices, and supporting laboratory applications. Oil-free compressors deliver clean and uncontaminated compressed air for critical processes, such as ventilators, nebulizers, surgical instruments, dental tools, and laboratory testing. They ensure patient safety, regulatory compliance, and reliable operation in these sensitive environments.

3. Electronics and Semiconductor:

The electronics and semiconductor industries require oil-free air compressors for various applications. These compressors are used in cleanrooms and manufacturing processes where air quality is crucial to prevent contamination of sensitive electronic components. Oil-free compressors provide clean and dry compressed air for applications like chip manufacturing, circuit board assembly, and air knife systems. They help ensure the reliability and quality of electronic products while minimizing the risk of particle contamination.

4. Automotive and Aerospace:

In the automotive and aerospace industries, oil-free air compressors are utilized for painting, coating, and pneumatic tools. These compressors deliver clean, oil-free compressed air, ensuring high-quality finishes and preventing oil contamination that could affect adhesion or cause defects. Oil-free compressors play a critical role in maintaining the precision and reliability of pneumatic tools used in assembly lines, manufacturing processes, and aircraft maintenance.

5. Textile and Garment:

The textile and garment industries rely on oil-free air compressors for various applications, including powering pneumatic tools, air agitation in dyeing processes, and providing clean compressed air for textile manufacturing. Oil-free compressors prevent oil contamination that could stain or damage fabrics, ensuring product quality and minimizing the risk of production defects. They help maintain efficiency and reliability in textile production while meeting strict quality standards.

6. Chemical and Petrochemical:

The chemical and petrochemical industries utilize oil-free air compressors in critical processes where air purity is essential. These compressors are used in applications such as air sparging, pneumatic conveying, and instrument air supply. Oil-free compressors ensure that the compressed air does not introduce contaminants, ensuring the integrity of chemical reactions, preventing product contamination, and maintaining the safety of equipment and personnel.

7. Research and Laboratories:

Research facilities and laboratories across various industries rely on oil-free air compressors for a wide range of applications. These include air supply for analytical instruments, sample preparation, cell culture, and other research processes. Oil-free compressors provide clean and reliable compressed air, ensuring accurate test results, preventing contamination, and maintaining the integrity of samples and experiments.

It’s important to note that while these industries commonly use oil-free air compressors, the specific requirements may vary based on the application and industry standards. Selecting the appropriate oil-free compressor and adhering to recommended maintenance practices are crucial to achieve optimal performance and meet industry-specific needs.

China best Dww Series Electric Oil Free Rotary Screw Industry Air Compressor Manufacturer mini air compressor
editor by CX 2024-05-08

China Custom 250kw Variable Speed Drive Mute AC Two Stage Rotary Screw Oil Free Dry Air Compressor portable air compressor

Product Description

	Specification
	Model	Capacitiy (FAD)M³/min			Power kw	Noise level db	Weight KG
	Model	7bar	8.5bar	10bar	Power kw	Noise level db	Water Cooling	Air Cooling
OFA1	OFA15	2.4	2.1	1.8	15	74		1,030
	OFA22	3.7	3.2	2.7	22	74		1,070
	OFA30	4.8	4.4	4.0	30	74		1,300
	OFA37	5.9	5.3	5.0	37	74		1,355
	OFA45	7.0	6.5	6.1	45	74		1,390
OFA2	OFA55	9.2	7.9	7.3	55	74		1,860
	OFA75	12.2	11.2	10.7	75	74		1,935
	OFA90	14.7	13.5	12.7	90	74		2,000
OFA3	OFA110	19.3	17.2	16.0	110	74		3,660
OFA3	OFA132	22.9	19.5	18.8	132	74		3,700
OFA4	OFA160	29.4	25.7	23.8	160	74		5,300
	OFA200	36.6	33.1	30.4	200	74		5,380
	OFA250	44.5	41.0	37.4	250	74		5,450
	OFA275	47.4	43.0	41.0	275	74		5,500
OFA5	OFA315	51.5	47.6	46.0	315	74		6,000
OFA5	OFA355	56.3	52.6	50.4	355	74		9,050
OFW1	OFW37	5.9	5.3	5.0	37	74	1,355
OFW1	OFW45	7.0	6.5	6.1	45	74	1,450
OFW2	OFW55	8.8	7.9	7.3	55	74	1,800
	OFW75	11.9	11.2	10.7	75	74	1,850
	OFW90	14.3	13.5	12.7	90	74	1,925
OFW3	OFW110	19.1	17.1	16.0	110	74	2,635
OFW3	OFW132	21.9	19.6	18.9	132	74	2,760
OFW4	OFW160	28.3	26.1	24.2	160	74	3,850
	OFW200	36.1	33.1	30.4	200	74	4,000
	OFW250	43.1	41.0	37.0	250	74	4,100
	OFW275	46.4	43.0	41.0	275	74	4,300
OFW5	OFW315	50.9	47.6	46.0	315	74	6,550
	OFW355	56.3	52.6	50.4	355	74	6,950
	OFW400	62.1	57.8	55.8	400	74	7,050
	OFW450	76.5	71.5	63.8	450	74	8,400
	OFW500	83.9	78.3	73.1	500	74	8,400
	OFW630	102.9	95.7	89.0	630	74	9,125
	OFW750	122.8	109.6	101.8	750	74	9,225

Company Profile

ZheJiang Napu compressor Technology Co.,LTD was established in 2012 based in ZheJiang ,specializing in oil-free rotary screw air compressors, offering a wide range of products from airends to compressors .
With over 10 years experience in oil free screw air compressor. NAPU Compressor is compliant with ISO 8573-1, Class 0 standard and audited by TUV Rheinland and China National Quality Inspection Center of Compressor and Refrigerator.
The company is also compliant with ISO 9001:14001 and is CHINAMFG in the domestic market for its quality-driven culture. The oil-free compressors manufactured by the company are used in a variety of sectors including some of our valued clients like CASC-China Aerospace Science Corporation, NORINCO-China North Industries Group, CNNC-China National Nuclear Group, CHANG AN AUTO, SINOPHARM, BYD and CALT and Sino-Chemical etc.
Continuous improvement in productivity and efficiency is our goal, and we continue to offer an extensive services including our own branded oil-free compressor package as well as after-sales services for other leading brands.

Product Features

1. In house designed airend
2. 100% oil free air certified by Germany TUV.
3. Double-layer structure to reduce he noise.
4. Air Cooling and Water cooling are available.
5. VSD control are available.
6.Touch Screen PLC with preset running schedule, more intelligent control.
7.OEM&ODM service are accepted

FAQ

Q1. Are you trading company or manufacture ?
A: We are professional manufacture of oil free air compressors. More than 20 years of experience in air compressor manufacturing.

Q2. What’s payment term ?
A: T/T, Western Union, Paypal, Credit Card, and etc. Also we could accept USD, RMB, Euro and other currency.

Q3. How about your after-sales service ?
A: 1.We can provide customers with installation and commissioning online instructions.

Q4. How about your warranty?
A: One year for the whole machine and 5 years for screw air end, except consumable spare parts.

Q5. Do you have any certificate ?
A: Yes, we can offer CE ,ISO and certificate as clients’ demande.

Q6. How do you control quality ?
A: 1. The raw materials are strictly inspected
2. Each compressor must pass at least 8 hours of continuous testing before leaving the factory.

Q7.How long could your air compressor be used?
A: Usually, more than over 10 years.

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

After-sales Service:	Online Support
Warranty:	12 Months
Lubrication Style:	Oil-free
Cooling System:	Water Cooling
Power Source:	AC Power
Cylinder Position:	Horizontal

Customization:	Available \|

air compressor

Can Oil-Free Air Compressors Handle High-Pressure Applications?

Yes, oil-free air compressors are capable of handling high-pressure applications, but certain considerations need to be taken into account. Here’s a detailed explanation of the capabilities and considerations regarding the use of oil-free air compressors in high-pressure applications:

1. Compressor Design:

Oil-free air compressors are designed to deliver oil-free compressed air, and some models are specifically engineered to handle high-pressure requirements. These compressors incorporate robust components, such as high-strength materials, reinforced valves, and advanced sealing technologies, to withstand the higher pressures generated during compression. They are typically designed to operate within specific pressure ranges, and their performance and reliability are optimized for those ranges.

2. Pressure Rating:

When selecting an oil-free air compressor for a high-pressure application, it is crucial to consider the compressor’s pressure rating. The pressure rating indicates the maximum pressure that the compressor can reliably generate and maintain. Oil-free compressors suitable for high-pressure applications are available with varying pressure ratings, ranging from several hundred PSI (pounds per square inch) to several thousand PSI, depending on the specific model and manufacturer. It’s important to choose a compressor with a pressure rating that meets or exceeds the requirements of the intended application.

3. Operating Efficiency:

Operating efficiency is an important consideration when using oil-free air compressors for high-pressure applications. As the pressure requirement increases, the compressor may consume more energy to achieve and maintain the desired pressure. It’s advisable to select a compressor that is optimized for energy efficiency, as it can help reduce operating costs and minimize environmental impact. Compressors equipped with advanced control systems, variable speed drives, and efficient motor designs can enhance overall energy efficiency in high-pressure applications.

4. Air Treatment and Filtration:

High-pressure applications often require dry and clean compressed air. In addition to the oil-free operation, it is important to ensure that the compressed air is adequately treated and filtered to remove moisture, particulates, and other contaminants. The use of appropriate air dryers, filters, and separators in the compressed air system is necessary to maintain the desired air quality and protect downstream equipment in high-pressure applications.

5. System Safety and Regulations:

High-pressure applications present additional safety considerations. It is essential to ensure that the entire compressed air system, including the compressor, storage tanks, piping, and safety devices, is designed, installed, and operated in compliance with relevant safety regulations and standards. Pressure relief valves, pressure gauges, and other safety devices should be appropriately sized and configured to handle the high-pressure conditions. Regular inspections, maintenance, and adherence to safety protocols are crucial to ensure the safe operation of the high-pressure oil-free air compressor system.

It’s important to consult with compressor manufacturers or industry experts to determine the suitability of specific oil-free compressors for high-pressure applications. They can provide guidance on selecting the right compressor model, assessing system requirements, and ensuring compliance with safety standards.

By considering the design, pressure rating, operating efficiency, air treatment, and system safety, oil-free air compressors can successfully handle high-pressure applications in various industries, including manufacturing, automotive, aerospace, and energy.

air compressor

How Do You Troubleshoot Common Problems with Oil-Free Compressor Systems?

To troubleshoot common problems with oil-free compressor systems, follow these steps:

1. Check Power Supply:

Ensure that the compressor system is properly connected to a reliable power supply. Check for any tripped circuit breakers or blown fuses. Verify that the power switch is in the “on” position.

2. Inspect Air Filters:

3. Check for Air Leaks:

4. Monitor Pressure Gauges:

5. Check for Excessive Heat:

6. Inspect Drains and Condensate Management:

7. Review Maintenance Records:

8. Consult Manufacturer’s Documentation:

9. Seek Professional Assistance:

Remember to prioritize safety when troubleshooting compressor systems. Follow proper lockout/tagout procedures and adhere to all safety guidelines provided by the manufacturer. air compressor

How Do Oil-Free Air Compressors Compare to Oil-Lubricated Ones?

When comparing oil-free air compressors to oil-lubricated ones, several factors come into play, including performance, maintenance requirements, air quality, and application suitability. Here’s a detailed comparison between oil-free air compressors and oil-lubricated ones:

1. Oil Contamination:

Oil-lubricated compressors require oil for lubrication and cooling of internal components. However, there is a risk of oil carryover, where small amounts of oil can mix with the compressed air. This oil contamination can have adverse effects on downstream equipment, processes, and end products. In contrast, oil-free air compressors eliminate the risk of oil contamination as they operate without lubricating oil. This makes them suitable for applications that require clean and oil-free compressed air, such as in the food and beverage, pharmaceutical, and electronics industries.

2. Compressed Air Quality:

Oil-lubricated compressors may introduce oil aerosols, vapors, or particles into the compressed air stream. While filters and separators can help mitigate oil contamination, achieving completely oil-free compressed air may be challenging. In contrast, oil-free air compressors deliver clean and dry compressed air without any oil content. They are designed to meet strict air quality standards, such as ISO 8573-1 Class 0, ensuring the highest level of air purity. This makes them ideal for applications where air quality is critical, such as in pharmaceutical manufacturing, research laboratories, and electronics assembly.

3. Maintenance Requirements:

Oil-lubricated compressors require regular maintenance to ensure proper lubrication, filter replacement, and oil changes. The presence of oil also necessitates careful monitoring of oil levels and potential leaks. Maintenance tasks can be more involved and time-consuming compared to oil-free compressors. On the other hand, oil-free air compressors generally have lower maintenance requirements since they don’t require oil changes or oil-related maintenance. However, regular maintenance tasks such as filter replacements and general system checks are still necessary to maintain optimal performance and reliability.

4. Initial Cost and Energy Efficiency:

Oil-lubricated compressors typically have a lower initial cost compared to oil-free compressors. However, oil-free compressors can offer long-term cost savings due to reduced maintenance requirements and lower energy consumption. Oil-lubricated compressors use oil for lubrication, which adds to the energy consumption as the compressor needs to overcome the friction generated by the oil. In contrast, oil-free compressors eliminate the need for oil, resulting in higher energy efficiency and potential energy savings over the compressor’s lifespan.

5. Application Suitability:

The choice between oil-free and oil-lubricated compressors depends on the specific application requirements. Oil-lubricated compressors are often suitable for general industrial applications where compressed air quality is not critical, and oil carryover is acceptable. They are commonly used in manufacturing, construction, and automotive industries. On the other hand, oil-free compressors are essential for applications that demand clean and oil-free compressed air, such as in food processing, pharmaceutical production, electronics manufacturing, and critical research environments.

It’s important to consider the specific needs of the application, industry regulations, and the desired level of compressed air purity when choosing between oil-free and oil-lubricated compressors. Consulting with compressed air experts and considering factors such as air quality requirements, maintenance costs, and long-term energy efficiency can help determine the most suitable compressor type for a particular application.

China Custom 250kw Variable Speed Drive Mute AC Two Stage Rotary Screw Oil Free Dry Air Compressor portable air compressor
editor by CX 2024-04-04

China Good quality 30% Energy Saving Low Noise Industrial VSD Single Rotary Screw Type Air Compressors Price Oil Free Direct Driven Air Compressor 7.5kw 15kw 22kw 37kw 55kw 75kw with Best Sales

Product Description

Brief introduction of factory:
1. We have been engaged in r & D, production and sales of air compressors for 19 years;
2. Our air compressor products through CE,SGS,ISO certification, with more than 20 invention patents;
3. Our products are exported to 132 countries and regions around the world;
4. Our air compressor provides a 5-year warranty.
If you have specific parameters and requirements for our Rotary Screw Type Air Compressor, customization is available
Hot – selling screw air compressor directory

Model	Air Flow (m³/min)				Motor Power	Noise	Outlet Diameter	Dimension	Weight
Model	7bar	8bar	10bar	13bar	kw	dB	inch	WDH (mm)	kg
YP-10A	1.1	1.0	0.85	0.7	7.5	65	G1”	960680960	280
YP-15A	1.8	1.65	1.5	1.3	11	65	G1”	10508301240	380
YP-20A	2.4	2.2	2.1	1.8	15	68	G1”	10508301240	380
YP-25A	3.1	3.0	2.7	2.3	18.5	68	G1”	12008301290	480
YP-30A	3.8	3.6	3.2	2.5	22	68	G1”	12008301290	480
YP-40A	5.3	5.0	4.3	3.6	30	69	G11/2”	130010001540	710
YP-50A	6.6	6.2	5.7	4.6	37	69	G11/2”	130010001540	710
YP-60A	8.0	7.7	6.9	6.0	45	70	G11/2”	150011601700	990
YP-75A	10.5	9.8	8.7	7.3	55	70	G11/2”	150011601700	990
YP-100A	13.6	13.0	11.3	10.1	75	72	G2”	170011801800	1300
YP-125A	16.2	15.4	13.2	11.2	90	72	DN50	185012001900	1400
YP-150A	20.8	19.5	16.5	13.7	110	73	DN65	225012602055	1560

Product Description

Promises Every Machine Will Run Well More Than 15 Years

Brief Introduction:
Air end: Germany Technology. 30 years designed lifetime.
Motor: 100% rare earth permanent magnet motor.
Inverter: Chinese No. 1 inverter can save 30% energy.
Warranty: 5 years for the air end, and 2 years for the whole compressor.
Delivery time: 7-15 days.
After-sales service:we have our professional after-sales technician to instruct the installation of the whole screw air compressor.
Certificate: CE/ISO9001/ASME
We offer free pipe and valves for installation and installation diagram

Screw Air Compressor Main Configuration
Item	Parts	Brand
1	Air end	Hanbell /BAOSI/GU Air End (Germany origin)
2	Intake Valve	Red star(Chian)
3	Solenoid Valve	CEME (Italy)
4	Temperature sensor	Red star (China)
5	Pressure sensor	Huba original (from Switzerland)
6	Motor	Jiangtian Motor( China)
7	Coupling	Germany KTR
8	Thermostat Valve	Italy VMC
9	PLC	MAM6080 MAM880 MAM860
10	Minimal Pressure Valve	Red star(Chian)
11	Air filter element	Germany MANN
12	Oil filter element	Germany MANN
13	Oil separator element	Germany MANN
14	Bearing	Sweden SKF

Advantages
1.New generation of highly efficient imported host machine
2.Highly efficient permanent magnetic motor
3.SKF bearing
4.Highly efficient magnetic steel of permanent magnetic motor
5.Intelligent microcomputer control system
6.Energy-saving air inlet control system
7.Highly efficient cooling system
8.Highly efficient professional filtering syste

Detailed Photos

OUR TEAM

Certifications

1. CE;
2. SGS;
3. ISO9001;
4. 12 patents for screw compressor.

QC Management

Re-factory quality control process:
1.Installation inspection of the whole air compressor: check and confirm the whole machine according to the operation instructions and quality control standards. Main inspection items:
A . Confirm the nose and motor nameplates;
B . Check whether there is oil leakage in the pipeline and oil circuit of the air compressor; C . the air compressor machine screw locking inspection..
2. Rotary screw type air compressor factory test machine, heat engine: test whether the air compressor operation parameters meet the requirements of customers, including voltage, current, working pressure, exhaust volume, etc.Air compressor factory before 48 hours of thermal test, stability confirmation.
3. 24 hours online after-sales service, one-to-1 online guidance installation, debugging, troubleshooting.

Product Case

Use case of rotary screw type air compressor
1. Rotary Screw type air compressors are exported to 132 countries and regions all over the world;
2. All indicators of screw air compressor are stable and the failure rate is low;
3. Perfect after-sales service system, engineers on duty 24 hours a day to provide one-on-1 service to customers at the air compressor use site.

Packaging & Shipping

Rotary Screw type Air compressor packing method
1. Screw air compressor packaging is divided into 3 layers from inside to outside:
1) The first layer of protection: spray paint on the surface of the machine to protect the surface of the machine. The fouling pull film is wrapped around the surface of the machine to protect the surface of the paint.
2) The second layer of protection: anti-collision protection of the machine. On the basis of lacquer protection, anti-collision buffer cotton is used to protect the machine against collision.
3) The third layer of protection: the case adopts the overall packaging of the non-fumigation wooden case to protect the machine during transportation.

F.A.Q

Q1. Why do customers choose us?
Yunshun Electric Machinery Co., Ltd. is a company specializing in screw air compressor for 18 years since 2001. Our
German Standard production line helps us get the affirmation from our agents as well as end-user clients.

Q2. Are you a manufacturer or trading company?
We are a professional manufacturer with big modern factory in HangZhou,China.
Both OEM & ODM service can be accepted.

Q3. What’s your delivery time?
Generally 7-10 days, if urgent order, we can arrange, too.

Q4. How long is your air compressor warranty?
2 years for the whole machine and 5years for screw air end, except consumable spare parts.

Q5. How long could your air compressor be used for?
At least 10 years.

Q6. What’s payment term?
T/T, L/C, Western Union, Credit Card, and etc.

Q7. How about your customer service?
24 hours on-line service for all our clients.

Q8. How about your after-sales service?
1. Providing customers with installation online instructions.
2. Well-trained engineers available to overseas service.
3. PlHangZhou for oversea after-sales supporting company.

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

After-sales Service:	5 Years for The Air End, and 2 Years for The Whole
Warranty:	2 Years
Lubrication Style:	Lubricated
Cooling System:	Air Cooling
Power Source:	AC Power
Cylinder Position:	Vertical

Customization:	Available \|

air compressor

Can Oil-Free Air Compressors Handle High-Pressure Applications?

1. Compressor Design:

2. Pressure Rating:

3. Operating Efficiency:

4. Air Treatment and Filtration:

5. System Safety and Regulations:

air compressor

How Do You Troubleshoot Common Problems with Oil-Free Compressor Systems?

To troubleshoot common problems with oil-free compressor systems, follow these steps:

1. Check Power Supply:

Ensure that the compressor system is properly connected to a reliable power supply. Check for any tripped circuit breakers or blown fuses. Verify that the power switch is in the “on” position.

2. Inspect Air Filters:

3. Check for Air Leaks:

4. Monitor Pressure Gauges:

5. Check for Excessive Heat:

6. Inspect Drains and Condensate Management:

7. Review Maintenance Records:

8. Consult Manufacturer’s Documentation:

9. Seek Professional Assistance:

Remember to prioritize safety when troubleshooting compressor systems. Follow proper lockout/tagout procedures and adhere to all safety guidelines provided by the manufacturer. air compressor

How Does an Oil-Free Air Compressor Work?

1. Dry Compression:

2. Friction Reduction:

3. Piston Rings and Seals:

4. Cooling Mechanisms:

5. Filtration:

6. Control and Safety Systems:

China Good quality 30% Energy Saving Low Noise Industrial VSD Single Rotary Screw Type Air Compressors Price Oil Free Direct Driven Air Compressor 7.5kw 15kw 22kw 37kw 55kw 75kw with Best Sales
editor by CX 2024-03-27

China OEM Movable Dental AC Oil Max Single Used Mini Rotary Industrial Portable High Pressure Oilless Screw Parts Part Piston Free 2 Air Pump Compressor air compressor for sale

Product Description

Product Parameter
One for one	Air Compressor (one for one)
	• Rated Voltage: 220VAC 50Hz
	• Current: 2.8A
	• Power: 550W
	• Volume Flow: 70L/ min
	• Actuating Pressure: 0.5Mpa
	•Rated exhaust pressure:0.77Mpa
	• Gas Holder Volume: 32L
	• Noise: 55- 62dB
One for two	• Rated voltage: 220VAC 50Hz
	• Current: 3.7A
	• Power: 840W
	• Volume flow: 105L/ min
	• Actuating pressure: 0.5Mpa
	• Rated exhaust pressure: 0.77Mpa
	• Gas holder volume: 40L
	• Noise: 58-64dB
One for three	•Rated Voltage: 220VAC 50Hz
	•Current: 5.6A
	•Power 1100W
	•Volume flow: 140L/ min
	•Actuating pressure: 0.5 Mpa
	•Rated exhaust pressure: 0.77Mpa
	•Gas holder volume: 60L
	•Noise: 65-75dB
One for four	• Rated Voltage: 220VAC 50Hz
	• Current: 11.2A
	• Power: 1680W
	• Volume Flow: 200L/ min
	• Actuating Pressure: 0.5Mpa
	•Rated exhaust pressure:0.77Mpa
	• Gas Holder Volume: 60L
	• Noise: 80-85dB
One for six	• Rated Voltage: 220VAC 50Hz;
	• Current: 11.4A;
	• Power: 2520W;
	• Volume Flow: 300L/ min;
	• Actuating Pressure: 0.8Mpa;
	•Rated exhaust pressure:0.77Mpa
	• Gas Holder Volume: 90L;
	• Noise: 80-85dB

Detailed Photos

Company Profile

The company mainly produces and operates dental handpiece and other dental equipmentHangZhou CHINAMFG DENTAL Co., Ltd is located in the heart of the Pearl River Delta, south adjacent to HangZhou, HangZhou and other places.

Distance Province stoop ( HangZhou ) is only 8 km away, HangZhou and HangZhou metro connected, very convenient.

The company produces more complete product range, providing one-stop sourcing for your convenience.
Our full license, to provide you with product quality assurance and perfect after-sales service.

Our first new products in the industry, we only produce and sell high quality products.
The company has a number of highly talented people. As product development, production, marketing, sale and so provide a comprehensive range of services.

Main products: High speed handpiece, micromotor, dental unit, rotary files, intraoral camera, whitening machine ect.

After several years of development efforts and continuous self-improvement, the company has successfully HUANOR many friends at home and abroad to establish a good relationship of cooperation.

HUANOR quality service is the company ‘s commitment to customer forever. CHINAMFG is willing to join hands with you for the beautiful and healthy career and make unremitting efforts.

Certifications

Packaging & Shipping

FAQ

Q: How can I order from you ?
A: We will make quotation according to your purchase plan (including product name, model and quantity). If you agree with the quotation, please send us your company name, address and telephone for delivery. We will make proforma invoice and inform you the payment information, delivery details will also be informed accordingly.

Q: How long is your delivery time?
A: Generally it will be 5-7days if the goods are in stock, or 15-20 days if the goods are out of stock, delivery time is about 1 week, it is according to quantity.

Q: Can you bear the freight?
A: The price we quote is based on EXW term, not including other cost, like shipping cost and importation costs, so customer should bear these extra cost. Or customer can arrange the shipment with your agent and pick up from our factory directly.

Q: What is your sample policy?
A: Handpiece is high value product, so free sample is not available, but we can discuss further regarding the mutual benefit CHINAMFG the first cooperation.

Q: What is your warranty policy?
A: For our distributor, usually we will send some spare parts and tools along with the order for future after sales service purpose.
For the doctor who order from our website, can look for our nearest distributor for technical support, but because our price does not including any warranty cost, so need to bear the cost for the after sales service from our distributor.
For thoes quality issue, please feel free to contact with us for solution.

Q: What is your terms of payment?
A: If the order quantity is small, can transfer the full payment for the fast delivery. And when the total amount is large, we can also accept partial deposit for production and remaining balance before shipping.

Q . How do I get started or place an order with CHINAMFG Dental Co.,Ltd?
A4: There are 3 options for you to choose from:
1 Please send email to us, and we will contact your as soon as we can.

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Condition:	New
Certification:	ISO9001, ISO, CE
Application:	Pet, Adult, Child
Nature:	Public Equipment
Feature:	Waterproof
Usage Times:	Non-Disposable

Customization:	Available \|

air compressor

How Do Oil-Free Compressors Contribute to Clean Compressed Air?

1. Elimination of Oil Contamination:

2. Advanced Filtration Systems:

3. Enhanced Air Quality:

4. Reduced Maintenance Requirements:

5. Compliance with Industry Standards:

air compressor

Are There Any Specific Safety Considerations When Using Oil-Free Compressors?

Yes, there are specific safety considerations that should be taken into account when using oil-free compressors. Here’s a detailed explanation of the safety considerations associated with oil-free compressor operation:

1. Electrical Safety:

Oil-free compressors are powered by electricity, so electrical safety measures should be followed. It is important to ensure that the compressor is properly grounded and connected to a suitable power source. Electrical wiring and connections should be inspected regularly to identify any potential hazards such as frayed wires or loose connections. Adequate circuit protection, such as fuses or circuit breakers, should be in place to prevent overloads or short circuits. All electrical work should be performed by qualified personnel in compliance with applicable electrical codes and regulations.

2. Pressure Safety:

Compressed air generated by oil-free compressors can reach high pressures, and proper pressure safety measures should be in place. Pressure relief valves are essential components that protect the compressor and the entire compressed air system from overpressurization. These valves should be properly sized, regularly inspected, and tested to ensure they operate within the specified pressure limits. Pressure gauges should be installed to monitor and display the pressure levels accurately. It is important to avoid exceeding the maximum pressure rating of the compressor and to follow the manufacturer’s guidelines regarding pressure limitations.

3. System Ventilation:

Oil-free compressors generate heat during operation, and adequate ventilation is necessary to prevent overheating. Sufficient airflow around the compressor unit should be maintained to dissipate heat effectively. The compressor should be installed in a well-ventilated area, and any obstructions that could restrict airflow should be avoided. Inadequate ventilation can lead to increased operating temperatures, reduced compressor performance, and potential safety hazards. Manufacturers’ recommendations regarding ventilation requirements should be followed.

4. Preventing Injuries:

When working with oil-free compressors, certain precautions can help prevent injuries. It is important to wear appropriate personal protective equipment (PPE), such as safety glasses, hearing protection, and gloves, when operating or maintaining the compressor. Loose clothing, jewelry, or other items that could get caught in moving parts should be avoided. Compressed air should never be directed towards the body or other individuals, as it can cause serious injuries, such as cuts, bruises, or even pneumothorax. Proper training and clear instructions for safe operation should be provided to all personnel working with the compressor.

5. Maintenance and Inspection:

Regular maintenance and inspection of oil-free compressors are essential for safe operation. The compressor should be inspected for any signs of damage, leaks, or abnormal vibrations. Routine maintenance tasks, such as filter replacements, should be performed according to the manufacturer’s recommendations. Maintenance procedures should be carried out with the compressor turned off and isolated from the power source. Only authorized personnel with the necessary training and knowledge should perform maintenance tasks on the compressor to ensure proper safety protocols are followed.

6. Emergency Preparedness:

Being prepared for potential emergencies is crucial when using oil-free compressors. Emergency shutdown procedures should be established and clearly communicated to all personnel. Adequate fire suppression equipment, such as fire extinguishers, should be readily available and properly maintained. In the event of a compressor-related incident, personnel should be trained on emergency response protocols and evacuation procedures.

It is important to consult the manufacturer’s documentation and guidelines for specific safety considerations related to the oil-free compressor model being used. Additionally, adherence to relevant safety regulations and standards, as well as regular safety training and awareness programs, further contribute to maintaining a safe working environment when using oil-free compressors.

air compressor

How Does an Oil-Free Air Compressor Work?

1. Dry Compression:

2. Friction Reduction:

3. Piston Rings and Seals:

4. Cooling Mechanisms:

5. Filtration:

6. Control and Safety Systems:

China OEM Movable Dental AC Oil Max Single Used Mini Rotary Industrial Portable High Pressure Oilless Screw Parts Part Piston Free 2 Air Pump Compressor air compressor for sale
editor by CX 2024-03-02

China Good quality Rotary Screw Oil Free Air Compressor HS Code 8414804090 Used for Bottle Filling Machine air compressor repair near me

Product Description

Rotary screw oil free air compressor hs code used for bottle filling machine

Products Description

Type:	Oil Injected Permanent Magnetic Screw Compressor
Voltage:	380V/50HZ/3P, 220V/60HZ/3P, 400V/50HZ/3P, 415V/50HZ/3P or Customer′s Requirements
Working Pressure:	7bar/8bar/10bar
Installed Motor Power:	18.5~110 Kw
Color:	Blue
Driven Method:	Taper Connection Direct Driven
Air End:	High Efficiency Airend
Trademark:	SCR
Transport Package:	Standard Wooden Packing
Available Certificate:	CE, ISO, UL, ASME, GHOST
Origin:	ZheJiang , China
application:	Packing,Painting,Precision Electroplating,Peparing

Advantages:
1. China-Japan latest technology cooperation, high reliability.
2. Oil Cooling Permanent Magnetic Motor.
3. IP65 protection grade & heavy duty air filter, suitable for high dusty environment.
4. IE4 Efficiency motor efficiency.
5. Most energy saving mode, Only work at loading.
6. Wide frequency range 25%-100%.
7. Premium Magnetic material resist more than 180ºC temp.
8. Reliable PM motor supplier from Italy.
9. Direct Taper connection, no transmission power loss, easy maintenance.
10.Touch Screen PLC with preset running schedule, more intelligent control.
11. Both main motor and fan motor are inverter control, more accurate control.
12. Easy for installation and service.
13. Fantastic Energy Saving, save up to more than 30-40%.

Details image

HIGH QUALITY PM MOTOR

The motor winding take use of new technology vacuum expoxy potting process, it increase the thermal conducivity and motor insulation protection
Automatic vacuum expoxy processing enhance the motor quality
The new seal technology of winding, it is sealed with expoxy, better protection for winding.
F grade insulation grade, resist up to 180degree, integrated PTC protection.

PM MOTOR COOLING SCR heavy duty air filter

Liquid Cooling, IP65 PM Motor.
Indepent cooling system.

HIGH EFFICIENCY SEPARATION SYSTEM
Cyclone oil tank design encsure the high separation efficiency.
First stage mechanical centrifugal separation.
Second stage is high efficiency oil separator.
4000hours life-span of oil separator.
The oil content is lower than 3PPM.

LATEST V/F Inverter
* Latest V/F technology Inverter.
* CE/UL Certificed Inverter.
* Both Motor are inverter control.
* High reliable inverter brand proofed in the market.
* Professional service support.
* Automatic airend speed adjust to match your air demand, help good energy saving

How to choose ?

Model No.	Working pressure bar	Capacity(FAD) m3/min	Power kw	Driving model Cooling method	Noise level dB	Outlet diameter	Weight kg	Dimension mm
YCR7.5	7	1.2	7.5	Direct Air cooling(Standard)	63	G3/4″	400	890560840
	8	1.1
	10	1.0
	12	0.8
YCR11	7	1.8	11	Direct Air cooling(Standard)	64	G3/4″	460	10506901080
	8	1.6
	10	1.5
	12	1.3
YCR15	7	2.6	15	Direct Air cooling(Standard	65	G3/4″	500	10506901080
	8	2.4
	10	2.1
	12	1.8
YCR22	7	3.7	22	Direct driven Air cooling	65	G1″	550	13507801250
	8	3.5
	10	3.1
	12	2.7
YCR30	7	5.3	30	Direct driven Air cooling	67	G1-1/2″	940	14209001425
	8	5.1
	10	4.6
	12	3.9
YCR37	7	6.5	37	Direct driven Air cooling	67	G1-1/2″	1000	14209001425
	8	6.2
	10	5.6
	12	4.9
YCR45	7	8.1	45	Direct driven Air cooling	70	G1-1/2″	1050	175011001700
	8	7.5
	10	7.0
	12	6.0
YCR55	7	10.5	55	Direct driven Air cooling	73	G2″	1500	175011001700
	8	10
	9	9.0
	12	8.0
YCR75	7	14.3	75	Direct driven Air cooling	75	G2″	1700	175011001700
	8	13.0
	10	11.8
	12	10.5

/* March 10, 2571 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Lubrication Style:	Lubricated
Cooling System:	Air Cooling
Power Source:	AC Power
Cylinder Position:	Angular
Structure Type:	Closed Type
Installation Type:	Stationary Type

Customization:	Available \|

air compressor

Are There Specific Filtration Requirements for Oil-Free Compressors?

1. Pre-Filtration:

2. Coalescing Filtration:

3. Activated Carbon Filtration:

air compressor

Can Oil-Free Air Compressors Be Used in Cold Climates?

Yes, oil-free air compressors can be used in cold climates. Here’s a detailed explanation of the considerations and adaptations that may be necessary when using oil-free compressors in cold weather:

1. Cold-Start Capability:

Oil-free compressors should be designed and equipped with features that enable them to start and operate reliably in cold temperatures. This includes components such as low-temperature lubricants, preheating systems, and specialized insulation to prevent freezing or damage to critical parts.

2. Compressed Air Drying:

In cold climates, the moisture content in the compressed air can condense and freeze, leading to operational issues and potential damage to the compressed air system. It is crucial to incorporate proper compressed air drying equipment, such as refrigerated dryers or desiccant dryers, to remove moisture from the compressed air and prevent freezing within the system. This ensures the production of dry and reliable compressed air even in cold weather conditions.

3. Freeze Protection:

Special attention should be given to protecting the compressor and associated components from freezing. This may involve insulation, heat tracing, or the use of frost protection heaters in critical areas susceptible to freezing, such as air intakes, valves, filters, and condensate drains. Adequate insulation can help maintain optimal operating temperatures and prevent freezing-related issues.

4. Cold Weather Lubricants:

In extremely cold climates, it is essential to use specific lubricants that are designed to perform effectively at low temperatures. These lubricants should have low pour points and be capable of providing sufficient lubrication and protection to the compressor’s moving parts even in cold environments. Using the appropriate lubricants ensures reliable operation and prevents damage to the compressor during cold starts and operation.

5. Preventive Maintenance:

Regular preventive maintenance is crucial when using oil-free compressors in cold climates. It is essential to follow the manufacturer’s recommendations for maintenance tasks such as filter replacements, lubricant changes (if applicable), and inspection of critical components. Cold weather conditions can exacerbate wear and tear on equipment, so proper maintenance helps identify and address potential issues before they lead to operational problems.

6. Monitoring and Control:

Implementing advanced monitoring and control systems can provide real-time information about the compressor’s performance in cold climates. Monitoring parameters such as temperature, pressure, and system efficiency can help identify any deviations or potential issues caused by low temperatures. Additionally, control systems can optimize compressor operation and adjust parameters to ensure efficient performance in cold weather conditions.

It’s important to consult the manufacturer’s specifications and guidelines for the specific oil-free compressor model being used, as they may provide additional recommendations or requirements for operating the compressor in cold climates. Adhering to these guidelines and implementing appropriate adaptations will help ensure the reliable and efficient performance of oil-free air compressors in cold weather environments.

air compressor

What Is an Oil-Free Air Compressor?

An oil-free air compressor, also known as an oilless air compressor, is a type of air compressor that operates without the use of lubricating oil in the compression chamber. Unlike traditional air compressors that rely on oil for lubrication and sealing, oil-free compressors employ alternative methods to achieve compression and deliver clean, oil-free compressed air. Here’s a detailed explanation of how oil-free air compressors work and their key characteristics:

Working Principle:

Oil-free air compressors utilize various techniques to compress air without the need for oil. The most common methods include:

Dry Compression: In this method, the compression chamber doesn’t have any oil present. Special materials, coatings, and surface treatments are used to reduce friction and wear between the moving parts, allowing for efficient compression without oil lubrication.
Water or Air Cooling: Oil-free compressors often employ advanced cooling mechanisms, such as water or air cooling, to dissipate the heat generated during compression. This helps to maintain the operating temperature within acceptable limits and ensures the longevity of the compressor.
Piston Rings and Seals: Instead of relying on oil for lubrication and sealing, oil-free compressors use specialized piston rings, seals, or other forms of dry frictionless technology. These components provide the necessary sealing and reduce internal friction, allowing for efficient compression without the need for oil.

Characteristics of Oil-Free Air Compressors:

1. Clean and Oil-Free Air: The primary advantage of oil-free air compressors is that they deliver air that is free from oil contamination. This makes them suitable for applications where oil contamination can be detrimental, such as in the medical, pharmaceutical, food and beverage, electronics, and automotive industries.

2. Low Maintenance: Oil-free compressors typically require less maintenance compared to oil-lubricated compressors. Since there is no oil to change or monitor, maintenance tasks related to oil filtration, oil changes, and oil disposal are eliminated. This can result in cost savings and reduced downtime.

3. Compact and Lightweight: Oil-free compressors are often designed to be compact and lightweight, making them portable and easy to transport. This makes them suitable for applications where mobility is required, such as construction sites, workshops, and on-site maintenance tasks.

4. No Oil Contamination Risk: With oil-free compressors, there is no risk of oil contaminating the compressed air system. This eliminates the need for additional filtration or separation equipment to remove oil from the compressed air, simplifying the overall system design.

5. Lower Initial Cost: In general, oil-free compressors tend to have a lower initial cost compared to oil-lubricated compressors. This can be advantageous for applications with budget constraints or when the specific requirements of the application align with the capabilities of oil-free compressors.

It’s important to note that oil-free air compressors may have certain limitations compared to oil-lubricated compressors. They may have lower maximum operating pressures and higher operating temperatures. Additionally, the absence of oil lubrication may result in slightly reduced efficiency and increased wear on certain components over time.

By understanding the working principle and characteristics of oil-free air compressors, users can determine whether this type of compressor is suitable for their specific application and requirements.

China Good quality Rotary Screw Oil Free Air Compressor HS Code 8414804090 Used for Bottle Filling Machine air compressor repair near me
editor by CX 2024-02-25

China supplier Screw Air Compressor Oil Free Portable Water Lubrication Oil-Less Machines Industrial Equipment 40 Bar Rotary Electric Head Sale Transmission Rotary Compressor with Good quality

Product Description

Screw Air Compressor Oil free portable water lubrication oil-less machines industrial equipment 40 bar rotary electric head sale transmission rotary compressor

Main uses and guarantees:

Energy saving: energy saving more than 15% compared with dry oil-free compressor.
Environment protection: no using any lubricate oil to avoid environment pollution.
Reliability: absolutely guarantee oil-free.

Because the purified water takes part into the compressing process to seal, cool and lubricate, it increases efficiency. With the same motor power, comparing with dry oil-free air compress, there is 15% more air production of oil-free screw air compressor of water lubrication, it reduces the energy consumption greatly. The consumption material of oil-free screw air compressor is only water, air filter and water filter, the maintenance cost is very low.

100% oil-free compressed air, 100% purified compressed air, 100% no oil pollution risk.

In the process of food and drink industry, medical industry, packing industry, electronic manufacture, painting industry, powder coating industry and textile manufacturing, it must avoid any risk of oil pollution, otherwise it would cause serious consequences such as manufacture damages and stop, brand and credit losing. CMN oil-free screw air compressor takes water for lubrication, there is not any lubricate oil in the air end, and at the meantime, because the purified water clean the air, the compressor air is absolutely clear and not any pollution.

Guarantee: High precision, high wear resistance, low noise, smooth and steady, high strength

Our product can be adapted. Please give us the required model name so we can provide you the most accurate quotation.

This chart if for reference, if you need different features, provide us all relevant details for your project and we will be glad to help you finding the product matching your need at the best quality with the lowest price.

Please note the price and the MOQ may vary regarding the product you chose: do not hesitate to contact us to know more!

SPECIFICATIONS FOR 25 TON CRAWLER EXCAVATOR
Engine	Engine model	Kw/rpm	135.5/2150
	No. of cylinders	Kw/rpm	637/1800
	Net Power	L	6.494
Main performance parameters	Main performance parameters	km/h	5.9/4.0
	Travel speed (max. & min.)	°	<=35
	Max. Gradeability	rpm	11.3
Hydraulic system	Hydraulic system	KPa	50.1
	Main pump	KN	161
	Rate flow	KN	125

Main Features

1) Simple structure in linear type ,easy in installation and maintation.
2) Adopting advanced world famous brand components in pneumatic parts ,electric parts and operation parts.
3) High pressure double crank to control the die opening and closing.
4) Running in a high automatization and intellectualization,no pollution
5) Apply a linker to connect with the air conveyor ,which can directly inline with filling machine .

company information

/* March 10, 2571 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Lubrication Style:	Oil-less
Power Source:	AC Power
Installation Type:	Stationary Type
Transport Package:	Wooden Case
Trademark:	EPT
Origin:	Zhejiang China

Samples:	US$ 999/Piece 1 Piece(Min.Order) \| Request Sample

air compressor

How Do Oil-Free Compressors Contribute to Clean Compressed Air?

1. Elimination of Oil Contamination:

2. Advanced Filtration Systems:

3. Enhanced Air Quality:

4. Reduced Maintenance Requirements:

5. Compliance with Industry Standards:

air compressor

How Do You Troubleshoot Common Problems with Oil-Free Compressor Systems?

To troubleshoot common problems with oil-free compressor systems, follow these steps:

1. Check Power Supply:

Ensure that the compressor system is properly connected to a reliable power supply. Check for any tripped circuit breakers or blown fuses. Verify that the power switch is in the “on” position.

2. Inspect Air Filters:

3. Check for Air Leaks:

4. Monitor Pressure Gauges:

5. Check for Excessive Heat:

6. Inspect Drains and Condensate Management:

7. Review Maintenance Records:

8. Consult Manufacturer’s Documentation:

9. Seek Professional Assistance:

Remember to prioritize safety when troubleshooting compressor systems. Follow proper lockout/tagout procedures and adhere to all safety guidelines provided by the manufacturer. air compressor

Are Oil-Free Air Compressors Suitable for Food and Beverage Industries?

Yes, oil-free air compressors are highly suitable for the food and beverage industries and are widely used in various applications within these sectors. The clean and oil-free compressed air produced by these compressors is essential to maintain product quality, ensure food safety, and meet industry regulations. Here’s a detailed explanation of why oil-free air compressors are suitable for the food and beverage industries:

1. Preventing Contamination:

The primary advantage of oil-free air compressors in the food and beverage industries is the prevention of oil contamination. These industries have stringent hygiene and safety standards, and any contamination in the production process can compromise product quality and consumer health. Oil-free compressors eliminate the risk of oil particles entering the compressed air stream, ensuring that the compressed air used in various processes, such as packaging, filling, and bottling, is free from oil contamination.

2. Preserving Food Freshness:

Oil-free air compressors help maintain the freshness and quality of food products. In applications such as food packaging, where compressed air is used to create a protective atmosphere or seal packaging, the absence of oil eliminates the risk of oil residues affecting the taste, aroma, or shelf life of the packaged food. Oil-free compressors ensure that the compressed air used for these purposes is clean and does not introduce any unwanted flavors or odors.

3. Compliance with Food Safety Standards:

The food and beverage industries are subject to strict regulations and standards to ensure food safety. Oil-free air compressors help companies meet these requirements by providing clean, oil-free compressed air that adheres to food safety guidelines. Compressed air used in processes like air agitation, product drying, or pneumatic conveyance must be free from contaminants to prevent cross-contamination and maintain hygienic conditions throughout the production chain.

4. Minimizing Product Loss and Waste:

In the food and beverage industries, any product loss or waste can have significant financial and environmental implications. Oil contamination in compressed air can lead to product spoilage, resulting in costly product losses and waste. By using oil-free air compressors, the risk of product contamination is minimized, helping to reduce waste and improve overall production efficiency.

5. Ensuring Equipment Performance and Longevity:

Oil-free air compressors help protect sensitive food and beverage production equipment from oil-related issues. Oil contamination can damage pneumatic valves, seals, and other components, leading to equipment malfunction, unplanned downtime, and costly repairs. Oil-free compressors eliminate these risks, ensuring the longevity and reliable performance of the production equipment.

6. Meeting Industry-Specific Requirements:

The food and beverage industries have specific requirements for compressed air quality and purity. Oil-free air compressors are designed to meet these industry-specific requirements, often complying with standards such as ISO 8573-1 Class 0, which certifies the air as completely oil-free. This certification provides assurance that the compressed air meets the strictest quality standards and is suitable for critical applications in these industries.

By using oil-free air compressors, companies in the food and beverage industries can maintain the highest standards of product quality, hygiene, and safety. It is essential to select oil-free compressors specifically designed for these industries and follow proper maintenance protocols to ensure consistent performance and compliance with industry regulations.

China supplier Screw Air Compressor Oil Free Portable Water Lubrication Oil-Less Machines Industrial Equipment 40 Bar Rotary Electric Head Sale Transmission Rotary Compressor with Good quality
editor by CX 2024-01-22

China Professional Hot Sale Oil Free Screw Air Compressor German Technology Direct Driven 7bar to 12.5bar Rotary Industrial High Performance air compressor portable

Product Description

Our advantages

1. Imported top-grade main machine, as the third generation product of state-of -the art brand the world, with asymmetrical 5:6 tooth rotor, is provided with outstanding performance and high efficiency far beyond other similar-type brand.

2. Full-intellectual control system and LCD screen, with self-diagnosis and protection devices, remote control and multi-host interlocking control, realizing unattended and high-tech operation.

3. Y series three-phase asynchronous motor special for compressor, imported World famous brand bearing, F-level insulation, IP54 especially suitable for long-term use, safe and reliable.

4 .Imported oil filter, oil gas separation filter element, ternary separation, ensure oil content less than 0.001ppm, the trunk adopts metal pipe, safe for long -term operation without leakage or deformation, the V type drive belt is imported from Germany, and has a service life more than10000hous.

5.Air volume auto intelligent control, auto shutdown after over long idle run, ensure over 25% of energy saving.

6.Valve-free oil system design, achieving a safer and more reliable operation of the whole machine, main machine adopts imported special compressor oil, reducing leakage inside and outside the compressor, improving efficiency of main machine and prolonging service life.

Main technical parameters:

Model	HW-7A	HW-11A	HW-15A	HW-22 A	HW-30 A	HW-37 A	HW-45 A	HW-55 A	HW-75 A	HW-90 A	HW-110 A	HW-132 A	HW-160 A	HW-185 A	HW-200 A	HW-220 A	HW-250 A
Type of coolin	Air coolin										Air coolin ater coolin
Volume flow (m3/min) Pressure (bar)	1.1/7	1.8/7	2.4/7	3.8/7	5.3/7	6.6/7	8.0/7	10.5/7	13.6/7	16.2/7	20.8/7	24.0/7	27.8/7	32.5/7	34.5/7	38.0/7	43.0/7
	1.0/8	1.65/8	2.2/8	3.6/8	5.0/8	6.2/8	7.7/8	9.8/8	13.0/8	15.4/8	19.5/8	23.0/8	26.0/8	31.0/8	33.0/8	36.5/8	40.5/8
	0.85/10	1.5/10	2.1/10	3.2/10	4.3/10	5.7/10	6.9/10	8.7/10	11.3/10	13.2/10	16.5/10	20.0/10	23.5/10	26.0/10	28.0/10	32.0/10	36.5/10
	0.7/12.5	1.3/12.5	1.8/12.5	2.5/12.5	3.6/12.5	4.6/12.5	6.0/12.5	7.3/12.5	10.1/12.5	11.2/12.5	13.7/12.5	15.5/12.5	19.5/12.5	21.6/12.5	23.5/12.5	27.0/12.5	32.0/12.5
Power	7.5kw/ 10hp	11kw/ 15hp	15kw/ 20hp	22kw/ 30hp	30kw/ 40hp	37kw/ 50hp	45kw/ 60hp	55kw/ 75hp	75kw/ 100hp	90kw/ 120hp	110kw/ 150hp	132kw/ 175hp	160kw/ 210hp	185kw/ 250hp	200kw/ 250hp	220kw/ 30hp	250kw/ 350hp
Caliber	3/4	1	1	1	11/4	11/4	11/2	2	2	2	DN65	DN65	DN65	DN80	DN80	DN100	DN100
Noise(A)	72±5 test accordin the national standard B/T4980-2003
Volta e/Frequency	AC 380v/415v/220v/480v or 50hz/60hz accpet Customized
Startin mode	Y-△
Coolin air volume(m³/Min)	32.5	50	50	110	145	145	185	220	250	270	420	460	510	510	620	710	800
Coolin water volume(L/Min)				14.5	20	25	30	39.9	51	61	79	91	105	123.5	131	144	163
Shape dimension	L/H(mm)
L	850	1150	1150	1200	1250	1350	1300	1950	1950	2100	2545	2545	2790	2790	2850	3150	3150
W	640	750	750	880	1000	1000	1000	1320	1320	1320	1450	1450	1550	1550	1700	2000	2000
H	880	1180	1180	1450	1360	1640	1470	1570	1570	1700	1900	1900	2000	2000	2000	2120	2120
Wei ht(K )	350	450	460	640	900	1060	1150	1750	1840	2030	2920	3200	3600	3780	4400	4930	5450

Detailed Photos

Brief Introduction of screw air compressor:
Air end	Germany Technology. 30 Years Designed Lifetime
Motor Efficiency Class	Ultraefficient/IE3/IE4 as per your required
Motor Protection Class	IP23/IP54/IP55 or as per your required (100% rare earth permanent magnet motor)
Inverter	Chinese No. 1 Inverter or Denmark Inverter Can Save 30% Energy
Warranty	5 Years for The Air End, and 2 Years for The Whole
Voltage	380V/3PH/50HZ/60HZ, 220V/3PH/50HZ/60HZ, 400V/3PH/50HZ/60HZ, 440V/3PH/50HZ/60HZ, 415V/3PH/50HZ/60HZ, 230V/3PH/50HZ/60HZ, 220V/1PH/60HZ/ dual voltage is also ok
Delivery time	7-15 days
Certificate	CE/SGS/ISO9001/ASME
After-sales service	we have our professional after-sales technician to instruct the installation of the whole screw air compressor

Main configuration

1 Motor- Germany

2 screw(air end)- Germany

3 Oil filter- Germany

4 Solenoid valve- Japan
5 Combination valve- Austria

6 AC contactor- Germany

7 Gas cooler- HangZhou, China

8 Oil cooler- HangZhou, China

9 Pressure controller- Japan

We offer free pipe and valves for installation and installation diagram

Company Profile

Brief introduction of factory:
1. our factory was established in 1985 which is specilized in manufacturing various types of air compressor and accessories.
2. our factory accept OEM air compressor power from 5.5kw to 315kw, 5hp to 355hp ;
3. Our products are exported to 132 countries and regions around the world;
4. Our air compressor provides a 5-year warranty.
If you have specific parameters and requirements for our Rotary Screw Type Air Compressor, customization is available
Promises Every Machine Will Run Well More Than 15 years

Customer feedback

1.we have 30+ years professinal experience to producation and service,
2. not only give you air compressor, also support air compressor system solution ,
3. 1 to 1 service help you solve question quickly.

After Sales Service

1. Reply in 24 hours.
2. Providing professional solutions.
3. Every product will be tested before the delivery.
4. Delivery on time and excellent after-sales service.
5. High quality, reliable price.

Shipment :

FAQ

1: Are you factory or trade company?
A1: We are factory.

Q2: What the exactly address of your factory?
A2: Our Factory is Located in HangZhou City, ZheJiang Province, China.

Q3: Will you provide spare parts of your products?
A3: Yes, We provide all parts to customer, so you can do repair or maintenance without trouble.

Q4: Can you accept OEM orders?
A4: Yes, with professional design team, OEM orders are highly welcome.

Q5: How long will you take to arrange production?
A5: Immediate delivery for stock products.380V 50HZ we can delivery the goods within 3-15 days. Other voltage or other color we will delivery within 25-30 days.

Q6: Warranty terms of your machine?
A6: Two years warranty for the machine and technical support always according to your needs.

Q7: Can you provide the best price?
A7:According to your order, we will provide you the best price.

/* March 10, 2571 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

After-sales Service:	Support Online and Local Service
Warranty:	2 Year for The Screw and 1 Year for The Whole Mach
Lubrication Style:	Lubricated
Cooling System:	No
Power Source:	AC Power
Cylinder Position:	Horizontal

Customization:	Available \|

air compressor

What Maintenance Is Required for Oil-Free Air Compressors?

Maintaining oil-free air compressors is crucial to ensure their optimal performance, reliability, and longevity. While oil-free compressors have lower maintenance requirements compared to oil-lubricated compressors, regular maintenance tasks are still necessary. Here’s a detailed explanation of the maintenance required for oil-free air compressors:

1. Regular Filter Replacements:

Oil-free air compressors have filters that help remove contaminants from the intake air. These filters should be regularly inspected and replaced as recommended by the manufacturer. Filters can become clogged over time, affecting the compressor’s efficiency and potentially increasing the risk of contaminants entering the compressed air stream. Regular filter replacements ensure proper air filtration and help maintain the desired level of air purity.

2. Condensate Drainage:

Oil-free compressors produce condensate, which is a mixture of water and oil-free compressed air. Proper condensate drainage is essential to prevent water buildup in the system, which can lead to corrosion and damage. Most oil-free compressors have automatic condensate drains that remove accumulated condensate. It’s important to regularly check and maintain these drains to ensure they are functioning correctly and prevent any blockages or leaks.

3. Inspection of Air Hoses and Connections:

Regularly inspecting air hoses, fittings, and connections is important to identify any leaks or damage. Leaks can lead to air pressure loss, reduced compressor efficiency, and increased energy consumption. Damaged hoses or connections should be repaired or replaced promptly to maintain the integrity of the compressed air system. Regular inspections can help identify potential issues early on and prevent costly breakdowns or inefficiencies.

4. Monitoring Air Pressure and Temperature:

Monitoring the air pressure and temperature of the compressor system is crucial for identifying any abnormalities or deviations from the desired operating parameters. Most oil-free compressors have built-in pressure and temperature sensors that provide real-time data. Regularly checking and recording this data can help detect any potential issues, such as pressure drops, abnormal temperature increases, or excessive cycling. If any abnormalities are detected, they should be investigated and addressed promptly to prevent further damage to the compressor.

5. General System Checks:

Performing general system checks on a regular basis helps ensure that all components of the oil-free air compressor are functioning properly. This includes inspecting the compressor motor, cooling fans, belts, and electrical connections. Any signs of wear, damage, or abnormal noise should be addressed promptly. Additionally, checking the compressor for any signs of oil contamination or unusual odors can help identify potential issues with the compressor system.

6. Manufacturer’s Recommendations:

It’s essential to follow the manufacturer’s recommended maintenance schedule and guidelines for the specific oil-free air compressor model. The manufacturer’s recommendations may include additional maintenance tasks specific to the compressor’s design and components. Adhering to these guidelines ensures that the compressor is properly maintained and can help prevent warranty issues.

Regular and proactive maintenance of oil-free air compressors is essential to ensure their reliable and efficient operation. Following the recommended maintenance tasks, monitoring system parameters, and promptly addressing any issues that arise can help extend the compressor’s lifespan, reduce the risk of breakdowns, and maintain the desired air quality for the intended applications.

air compressor

What Is the Impact of Oil-Free Technology on Compressed Air Quality?

The use of oil-free technology in compressed air systems has a significant impact on ensuring high-quality compressed air. Here’s a detailed explanation of the impact of oil-free technology on compressed air quality:

1. Elimination of Oil Contamination:

Oil-free technology ensures that the compressed air produced is free from oil contamination. Traditional compressors that use oil lubrication can introduce oil particles, aerosols, and vapors into the compressed air stream. These oil contaminants can have detrimental effects on downstream equipment, processes, and products. By eliminating oil from the compression process, oil-free technology helps maintain the purity and cleanliness of the compressed air, ensuring that it meets the required air quality standards.

2. Avoidance of Oil-Related Issues:

Oil contamination in compressed air systems can lead to various issues. Oil can cause damage to pneumatic equipment, valves, and seals, resulting in reduced efficiency and increased maintenance costs. It can also lead to product contamination in industries such as food and beverage, pharmaceuticals, and electronics manufacturing. Oil-free technology eliminates the risks associated with oil-related issues, ensuring that the compressed air remains clean, dry, and suitable for sensitive applications.

3. Enhanced Air Purity:

Oil-free compressors are designed with advanced filtration systems to further enhance air purity. These filtration systems typically include pre-filters, coalescing filters, and activated carbon filters. Pre-filters remove larger particles, coalescing filters capture smaller particles and coalesce water vapor, and activated carbon filters absorb odors and remaining oil vapors. By incorporating such filtration stages, oil-free technology ensures that the compressed air is free from particulate matter, moisture, odors, and residual oil content, resulting in higher air purity levels.

4. Compliance with Air Quality Standards:

Oil-free technology helps compressed air systems comply with air quality standards and regulations. Standards such as ISO 8573 specify acceptable limits for contaminants in compressed air, including oil content, particulate matter, and moisture. Oil-free compressors, with their ability to produce clean and oil-free compressed air, facilitate compliance with these standards. This is particularly crucial in industries where air quality is critical, such as healthcare, pharmaceuticals, electronics, and food processing.

5. Protection of Sensitive Applications:

Many applications require clean and uncontaminated compressed air to ensure optimal performance and product integrity. Oil-free technology provides the necessary assurance of air quality for these sensitive applications. Industries such as medical devices, laboratory testing, spray painting, and semiconductor manufacturing rely on oil-free compressed air to prevent contamination, maintain precise operation, and achieve consistent results. The use of oil-free technology safeguards the reliability and integrity of these applications.

6. Reduced Maintenance and Downtime:

Oil-free compressors generally require less maintenance compared to oil-lubricated compressors. The absence of oil eliminates the need for oil changes, oil filters, and associated maintenance tasks. This results in reduced maintenance costs, less downtime, and increased productivity. Additionally, the risk of oil-related failures and breakdowns is minimized, leading to improved overall system reliability and uptime.

In summary, oil-free technology has a significant positive impact on compressed air quality. It eliminates oil contamination, avoids oil-related issues, enhances air purity, facilitates compliance with air quality standards, protects sensitive applications, and reduces maintenance and downtime. These benefits make oil-free technology a preferred choice in industries where clean and high-quality compressed air is essential.

air compressor

What Industries Commonly Use Oil-Free Air Compressors?

1. Food and Beverage:

2. Pharmaceutical and Healthcare:

3. Electronics and Semiconductor:

4. Automotive and Aerospace:

5. Textile and Garment:

6. Chemical and Petrochemical:

7. Research and Laboratories:

China Professional Hot Sale Oil Free Screw Air Compressor German Technology Direct Driven 7bar to 12.5bar Rotary Industrial High Performance air compressor portable
editor by CX 2024-01-17

China factory DVWW-132 132kw Oil Free Variable Speed Drive VFD Rotary Screw Air Compressor with Dryer manufacturer

Product Description

Industrial Silent/Mute Medical Dry Oil Free Oilless Direct Drive Rotary Double Screw Type Air Compressor Advantages

1.Clean air 1, China
Our factory is located in No. 366, YangzhuangBang Street, Pingxing Rd., Xindai Town, HangZhou, ZHangZhoug Province, China

Q3: Warranty terms of your machine?
A3: Two years warranty for the machine and technical support according to your needs.

Q4: Will you provide some spare parts of the machines?
A4: Yes, of course.

Q5: How long will you take to arrange production?
A5: 380V 50HZ we can delivery the goods within 10 days. Other electricity or other color we will delivery within 22 days

Q6: Can you accept OEM orders?
A6: Yes, with professional design team, OEM orders are highly welcome

Lubrication Style:	Oil-free
Cooling System:	Air Cooling and Water Cooling
Power Source:	AC Power

Customization:	Available \|

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Shipping Cost: Estimated freight per unit.	about shipping cost and estimated delivery time.

Payment Method:
	Initial Payment Full Payment

Currency:	US$

Return&refunds:	You can apply for a refund up to 30 days after receipt of the products.

air compressor

What Maintenance Is Required for Oil-Free Air Compressors?

1. Regular Filter Replacements:

2. Condensate Drainage:

3. Inspection of Air Hoses and Connections:

4. Monitoring Air Pressure and Temperature:

5. General System Checks:

6. Manufacturer’s Recommendations:

air compressor

Can Oil-Free Air Compressors Be Used in Cold Climates?

1. Cold-Start Capability:

2. Compressed Air Drying:

3. Freeze Protection:

4. Cold Weather Lubricants:

5. Preventive Maintenance:

6. Monitoring and Control:

air compressor

What Is an Oil-Free Air Compressor?

Working Principle:

Oil-free air compressors utilize various techniques to compress air without the need for oil. The most common methods include:

Dry Compression: In this method, the compression chamber doesn’t have any oil present. Special materials, coatings, and surface treatments are used to reduce friction and wear between the moving parts, allowing for efficient compression without oil lubrication.
Water or Air Cooling: Oil-free compressors often employ advanced cooling mechanisms, such as water or air cooling, to dissipate the heat generated during compression. This helps to maintain the operating temperature within acceptable limits and ensures the longevity of the compressor.
Piston Rings and Seals: Instead of relying on oil for lubrication and sealing, oil-free compressors use specialized piston rings, seals, or other forms of dry frictionless technology. These components provide the necessary sealing and reduce internal friction, allowing for efficient compression without the need for oil.

Characteristics of Oil-Free Air Compressors:

China factory DVWW-132 132kw Oil Free Variable Speed Drive VFD Rotary Screw Air Compressor with Dryer manufacturer
editor by CX 2023-11-28

China supplier Portable 40 Bar Rotary Electric Head Transmission Rotary Screw Air Compressor Oil Free Water Lubrication Oil-Less Machines Industrial Equipment Compressor with high quality

Product Description

Portable 40 bar rotary electric head transmission rotary Screw Air Compressor Oil free water lubrication oil-less machines industrial equipment compressor

Main uses and guarantees:

Energy saving: saving more than 15% compared to dry oil-free compressors.
Environment protection: no using any lubricated oil to avoid environmental pollution.
Reliability: absolutely guarantee oil-free.

Because the purified water takes part into the compressing process to seal, cool, and lubricate, it increases efficiency. With the same motor power, compared with dry oil-free air compress, there is 15% more air production of oil-free screw air compressor of water lubrication, it reduces energy consumption greatly. The consumption material of an oil-free screw air compressor is only water, air filter and water filter, the maintenance cost is very low.

100% oil-free compressed air, 100% purified compressed air, 100% no oil pollution risk.

Guarantee: High precision, high wear resistance, low noise, smooth and steady, high strength

Our product can be adapted. Please give us the required model name so we can provide you the most accurate quotation.

Please note the price and the MOQ may vary regarding the product you chose: do not hesitate to contact us to know more!

SPECIFICATIONS FOR 25 TON CRAWLER EXCAVATOR
Engine	Engine model	Kw/rpm	135.5/2150
	No. of cylinders	Kw/rpm	637/1800
	Net Power	L	6.494
Main performance parameters	Main performance parameters	km/h	5.9/4.0
	Travel speed (max. & min.)	°	<=35
	Max. Gradeability	rpm	11.3
Hydraulic system	Hydraulic system	KPa	50.1
	Main pump	KN	161
	Rate flow	KN	125

Main Features

company information

After-sales Service:	Installation Guide 1-Year Warranty
Warranty:	1 Year
Lubrication Style:	Oil-free
Cooling System:	Water Cooling
Power Source:	DC Power
Cylinder Position:	Horizontal

Samples:	US$ 999/Piece 1 Piece(Min.Order) \| Request Sample

air compressor

Can air compressors be used for cleaning and blowing dust?

Yes, air compressors can be effectively used for cleaning and blowing dust in various applications. Here’s how air compressors are utilized for these purposes:

1. Cleaning Machinery and Equipment:

Air compressors are commonly used for cleaning machinery and equipment in industries such as manufacturing, automotive, and construction. Compressed air is directed through a nozzle or blowgun attachment to blow away dust, debris, and other contaminants from surfaces, crevices, and hard-to-reach areas. The high-pressure air effectively dislodges and removes accumulated dust, helping to maintain equipment performance and cleanliness.

2. Dusting Surfaces:

Air compressors are also employed for dusting surfaces in various settings, including homes, offices, and workshops. The compressed air can be used to blow dust off furniture, shelves, electronic equipment, and other objects. It provides a quick and efficient method of dusting, especially for intricate or delicate items where traditional dusting methods may be challenging.

3. Cleaning HVAC Systems:

Air compressors are utilized for cleaning HVAC (Heating, Ventilation, and Air Conditioning) systems. The compressed air can be used to blow dust, dirt, and debris from air ducts, vents, and cooling coils. This helps improve the efficiency and air quality of HVAC systems, preventing the buildup of contaminants that can affect indoor air quality.

4. Blowing Dust in Workshops:

In workshops and garages, air compressors are often used to blow dust and debris from workbenches, power tools, and work areas. Compressed air is directed to blow away loose particles and maintain a clean and safe work environment. This is particularly useful in woodworking, metalworking, and other trades where dust and debris can accumulate during the manufacturing or fabrication processes.

5. Cleaning Electronics and Computer Equipment:

Air compressors are employed for cleaning electronics and computer equipment. The compressed air is used to blow dust and debris from keyboards, computer cases, circuit boards, and other electronic components. It helps in preventing overheating and maintaining the proper functioning of sensitive electronic devices.

6. Industrial Cleaning Applications:

Air compressors find extensive use in industrial cleaning applications. They are employed in industrial settings, such as factories and warehouses, for cleaning large surfaces, production lines, and equipment. Compressed air is directed through specialized cleaning attachments or air-operated cleaning systems to remove dust, dirt, and contaminants efficiently.

When using air compressors for cleaning and blowing dust, it is important to follow safety precautions and guidelines. The high-pressure air can cause injury if directed towards the body or sensitive equipment. It is advisable to wear appropriate personal protective equipment, such as safety glasses and gloves, and ensure that the air pressure is regulated to prevent excessive force.

Overall, air compressors provide a versatile and effective solution for cleaning and blowing dust in various applications, offering a convenient alternative to traditional cleaning methods.

air compressor

How are air compressors employed in the mining industry?

Air compressors play a crucial role in the mining industry, providing reliable and efficient power for various mining operations. Here are some common applications of air compressors in mining:

1. Exploration and Drilling:

Air compressors are used during exploration and drilling activities in the mining industry. Compressed air is used to power drilling rigs, pneumatic hammers, and other drilling equipment. The high-pressure air generated by the compressor helps in drilling boreholes, extracting core samples, and exploring potential mineral deposits.

2. Ventilation and Air Quality Control:

Air compressors are employed in underground mining to provide ventilation and control air quality. Compressed air is used to operate ventilation fans and air circulation systems, ensuring adequate airflow and removing harmful gases, dust, and fumes from the mining tunnels and work areas.

3. Material Conveyance:

In mining operations, air compressors are used for material conveyance. Pneumatic systems powered by air compressors are utilized to transport materials such as coal, ore, and other minerals. Compressed air is used to operate pneumatic conveyors, pumps, and material handling equipment, allowing for efficient and controlled movement of bulk materials.

4. Dust Suppression:

Air compressors are employed for dust suppression in mining areas. Compressed air is used to spray water or other suppressants to control dust generated during mining activities. This helps in maintaining a safe and healthy work environment, reducing the risks associated with dust inhalation and improving visibility.

5. Instrumentation and Control:

Air compressors are used for instrumentation and control purposes in mining operations. Compressed air is utilized to power pneumatic control systems, control valves, and actuators. These systems regulate the flow of fluids, control equipment movements, and ensure the proper functioning of various mining processes.

6. Explosive Applications:

In mining, air compressors are used for explosive applications. Compressed air is employed to power pneumatic tools used for rock fragmentation, such as rock drills and pneumatic breakers. The controlled power of compressed air enables safe and efficient rock breaking without the need for traditional explosives.

7. Maintenance and Repair:

Air compressors are essential for maintenance and repair activities in the mining industry. Compressed air is used for cleaning machinery, removing debris, and powering pneumatic tools for equipment maintenance and repair tasks. The versatility and portability of air compressors make them valuable assets in maintaining mining equipment.

It is important to note that different mining operations may have specific requirements and considerations when selecting and using air compressors. The size, capacity, and features of air compressors can vary based on the specific mining application and environmental conditions.

By utilizing air compressors effectively, the mining industry can benefit from increased productivity, improved safety, and efficient operation of various mining processes.

air compressor

Can you explain the basics of air compressor terminology?

Understanding the basic terminology related to air compressors can help in better comprehension of their operation and discussions related to them. Here are some essential terms related to air compressors:

1. CFM (Cubic Feet per Minute): CFM is a unit of measurement that denotes the volumetric flow rate of compressed air. It indicates the amount of air a compressor can deliver within a minute and is a crucial factor in determining the compressor’s capacity.

2. PSI (Pounds per Square Inch): PSI is a unit of measurement used to quantify pressure. It represents the force exerted by the compressed air on a specific area. PSI is a vital specification for understanding the pressure capabilities of an air compressor and determining its suitability for various applications.

3. Duty Cycle: Duty cycle refers to the percentage of time an air compressor can operate in a given time period. It indicates the compressor’s ability to handle continuous operation without overheating or experiencing performance issues. For instance, a compressor with a 50% duty cycle can run for half the time in a given hour or cycle.

4. Horsepower (HP): Horsepower is a unit used to measure the power output of a compressor motor. It indicates the motor’s capacity to drive the compressor pump and is often used as a reference for comparing different compressor models.

5. Receiver Tank: The receiver tank, also known as an air tank, is a storage vessel that holds the compressed air delivered by the compressor. It helps in stabilizing pressure fluctuations, allowing for a more consistent supply of compressed air during peak demand periods.

6. Single-Stage vs. Two-Stage: These terms refer to the number of compression stages in a reciprocating air compressor. In a single-stage compressor, air is compressed in a single stroke of the piston, while in a two-stage compressor, it undergoes initial compression in one stage and further compression in a second stage, resulting in higher pressures.

7. Oil-Free vs. Oil-Lubricated: These terms describe the lubrication method used in air compressors. Oil-free compressors have internal components that do not require oil lubrication, making them suitable for applications where oil contamination is a concern. Oil-lubricated compressors use oil for lubrication, enhancing durability and performance but requiring regular oil changes and maintenance.

8. Pressure Switch: A pressure switch is an electrical component that automatically starts and stops the compressor motor based on the pre-set pressure levels. It helps maintain the desired pressure range in the receiver tank and protects the compressor from over-pressurization.

9. Regulator: A regulator is a device used to control and adjust the output pressure of the compressed air. It allows users to set the desired pressure level for specific applications and ensures a consistent and safe supply of compressed air.

These are some of the fundamental terms associated with air compressors. Familiarizing yourself with these terms will aid in understanding and effectively communicating about air compressors and their functionality.

China supplier Portable 40 Bar Rotary Electric Head Transmission Rotary Screw Air Compressor Oil Free Water Lubrication Oil-Less Machines Industrial Equipment Compressor with high quality
editor by CX 2023-10-09