China factory China Industrial Silent Oil-Free Electrical Rotary Screw Air Compressor air compressor CHINAMFG freight

Product Description

Product Description

China Industrial Silent Oil-Free Electrical Rotary Screw Air Compressor

Model: RW-37A/W
Type: totally oil free water lubrication screw air compressor
Screw type: Single screw
Free air delivery: 6.30 m3/min
Working pressure: 8bar
Control: Touch screen PLC
Driven: direct
Cooling: by air
Starting method: Frequency conversion start
Lubricating water volume: 40 liters
Electric motor: 50hp 37KW  400v/50hz/3ph,IP54
Discharge temperature: less than ambient +8 ºC
Noise: less than 67 dB(A)
Air outlet size: 1 1/4 “
Dimension: 1550*1150*1550mm
Weight: 1150kg

Technical parameter

Oil-free Water Lubricated Screw Air Compressor RW Series  
Model Air Delivery (m3/min)  Power (kW)   Lubricating water amount (Liters)   Cooling water amount T/Hour   Cooling water inlet/outlet diameter   Noise dB(A)   Outlet diameter   Dimension (mm)   Weight (Kg) 
 8 bar   10 Bar   12.5 bar   L*W*H 
 RW-08A/W   1.17   1.05   0.81   7.5   10   2.0   3/4″   58   3/4″   800*800*1200   470 
 RW-11A/W   1.65   1.42   1.10   11   26   2.5   1″   60   3/4″   1150*755*1340   580 
 RW-15A/W   2.43   2.17   1.80   15   26   3.5   1″   63   3/4″   1150*755*1340   650 
 RW-18A/W   3.13   2.82   2.05   18.5   30   4.0   1″   65   1″   1400*900*1450   705 
 RW-22A/W   3.52   3.21   2.78   22   30   5.0   1″   65   1″   1400*900*1450   745 
 RW-30A/W   5.12   4.43   3.63   30   40   7.0   1 1/2″   67   1 1/4″   1550*1150*1550(A) 1500*1150*1300(W)   1100 
 RW-37A/W   6.30   5.33   4.77   37   40   9.0   1 1/2″   67   1 1/4″   1550*1150*1550(A) 1500*1150*1300(W)   1150 
 RW-45A/W   7.40   6.30   5.56   45   90   10.0   1 1/2″   68   2″   1980*1300*1760(A) 1800*1300*1670(W)   1390 
 RW-55A/W   9.60   8.55   7.67   55   120   12.0   1 1/2″   70   2″   1980*1300*1760(A) 1800*1300*1670(W)   1470 
 RW-75A/W   13.00   11.50   9.70   75   120   18.0   1 1/2″   73   2″   2100*1600*1900(A) 2200*1500*1800(W)   2250(A) 1630(W) 
 RW-90A/W   14.80   13.90   12.60   90   180   20.0   1 1/2″   73   2 1/2″   2400*1600*2000(A) 2200*1500*1800(W)   2650(A) 2350(W) 
 RW-110A/W   19.85   16.66   15.56   110   180   24.0   2″   78   2 1/2″   3000*1700*2250(A) 2200*1500*1800(W)   3150(A) 2460(W) 
 RW-132A/W   23.10   19.97   16.90   132   240   30.0   2″   78   2 1/2″   3000*1700*2250(A) 2200*1500*1800(W)   3500(A) 2500(W) 
 RW-160W   28.11   25.45   22.52   160   240   35.0   3H   80   DN80   2700*1800*2050   3700 
 RW-185W   33.97   29.00   25.21   185   300   38.0   3″   80   DN80   2700*1800*2050   3750 
 RW-200W   36.75   32.78   29.24   200   300   42.0   4″   80   DN100   2700*1800*2050   3900 
 RW-220W   39.67   36.75   29.63   220   360   47.0   4″   80   DN100   2700*1800*2050   4200 
 RW-250W   43.50   39.30   34.00   250   360   58.0   4″   80   DN100   2700*1800*2050   4600 

 

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Customer Visit

Company Profile

 

ZheJiang CHINAMFG Machinery Co., Ltd. was established in 2003 and has 18 years of experience in the air compressor industry. It is an innovative enterprise integrating production, trade, service, research and development.

Our company dominates strong technical skill, advancing manufacture equipment and testing device, execute strictly of ISO9001 quality management system. As a CE certificated manufacturer, our Oil-free series air compressor also
reaches Germany TUV Class 0 standard.

 

Main products have passed the testing of national technical authorities, energy consumption level has reached the international advanced level.

 

With more than 120 skilled employees and 18 senior engineers, each production process is performed standardly and strictly. Germany technology and 14 years export experience have helped us to gain more than 30 loyal overseas agents, and our valued customers have spread across more than 130 countries.

 

CHINAMFG will continue to promote technological innovation and progress in line with the mission of “innovation reflects value”, and achieve CHINAMFG results with global partners, suppliers and employees. Create a new world of “energy saving, envir-onmental protection and intelligence” in the field of air compressors.

Certifications

 

Packaging & Shipping

Payment and delivery

FAQ

Q1. Are you trading company or manufacture ?
A: We are professional manufacture of screw air compressor of HangZhou,ZheJiang ,China. More than 18 years of experience in air compressor manufacturing.

 

Q2. How long is the delivery time ?
A: For standard voltage ,15 working days. Non-standard ,please contact our sales.

 

Q3. What’s payment term ?
A: T/T, L/C, D/P, Western Union, Paypal, Credit Card, and etc. Also we could accept USD, RMB, Euro and other currency.

 

Q4. How about your after-sales service ?
A: 1.Provide customers with installation and commissioning online instructions.
     2. Well-trained engineers available to overseas service.
     3.CHINAMFG agents and after service avaiable.arrange our engineers to help you training and installation.

 

Q5. How about your warranty?
A: One year for the whole machine and 2 years for screw air end, except consumable spare parts.

 

Q6. Do you have any certificate ?
A: Yes, per different customer’s market need ,we can offer CE ,ISO etc certificate.

 

Q7. What about the maintenance ?
A: First maintenance need to be done after 500Hours, and then every 2000-3000 hours to do the normal maintenance, and consider the actual environment.

 

Q8. How do you control quality ?
A: 1. The raw materials are strictly inspected
     2. Some key parts are imported from overseas
     3. Each compressor must pass at least 5 hours of continuous testing before leaving the factory.

 

Q9. Do you offer OEM service ?
A: Yes.Both OEM & ODM service can be accepted.

 

Q10.How long could your air compressor be used?
A: Generally, more than 10 years.

 

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After-sales Service: Online Support
Warranty: 2year
Lubrication Style: Oil-free
Customization:
Available

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

air compressor

Can air compressors be used for painting and sandblasting?

Yes, air compressors can be used for both painting and sandblasting applications. Here’s a closer look at how air compressors are utilized for painting and sandblasting:

Painting:

Air compressors are commonly used in painting processes, especially in automotive, industrial, and construction applications. Here’s how they are involved:

  • Spray Guns: Air compressors power spray guns used for applying paint coatings. The compressed air atomizes the paint, creating a fine mist that can be evenly sprayed onto surfaces. The pressure and volume of the compressed air impact the spray pattern, coverage, and overall finish quality.
  • Paint Mixers and Agitators: Compressed air is often used to power mixers and agitators that ensure proper blending of paint components. These devices use the compressed air to stir or circulate the paint, preventing settling and maintaining a consistent mixture.
  • Airbrushing: Air compressors are essential for airbrushing techniques, which require precise control over airflow and pressure. Airbrushes are commonly used in artistic applications, such as illustrations, murals, and fine detailing work.

Sandblasting:

Air compressors play a crucial role in sandblasting operations, which involve propelling abrasive materials at high velocity to clean, etch, or prepare surfaces. Here’s how air compressors are used in sandblasting:

  • Blasting Cabinets: Air compressors power blasting cabinets or booths, which are enclosed spaces where the sandblasting process takes place. The compressed air propels the abrasive media, such as sand or grit, through a nozzle or gun, creating a forceful stream that impacts the surface being treated.
  • Abrasive Blasting Pots: Air compressors supply air to abrasive blasting pots or tanks that store and pressurize the abrasive media. The compressed air from the compressor enters the pot, pressurizing it and allowing for a controlled release of the abrasive material during the sandblasting process.
  • Air Dryers and Filters: In sandblasting applications, it is crucial to have clean, dry air to prevent moisture and contaminants from affecting the abrasive blasting process and the quality of the surface being treated. Air compressors may be equipped with air dryers and filters to remove moisture, oil, and impurities from the compressed air.

When using air compressors for painting or sandblasting, it is important to consider factors such as the compressor’s pressure and volume output, the specific requirements of the application, and the type of tools or equipment being used. Consult the manufacturer’s guidelines and recommendations to ensure the air compressor is suitable for the intended painting or sandblasting tasks.

Proper safety measures, such as wearing protective gear and following established protocols, should always be followed when working with air compressors for painting and sandblasting applications.

air compressor

What safety precautions should be taken when working with compressed air?

Working with compressed air requires adherence to certain safety precautions to prevent accidents and ensure the well-being of individuals involved. Here are some important safety measures to consider:

1. Personal Protective Equipment (PPE):

Wear appropriate PPE, including safety goggles or a face shield to protect eyes from flying debris or particles, hearing protection to reduce noise exposure, and gloves to safeguard hands from potential hazards.

2. Compressed Air Storage:

Avoid storing compressed air in containers that are not designed for this purpose, such as soda bottles or makeshift containers. Use approved and properly labeled air storage tanks or cylinders that can handle the pressure and are regularly inspected and maintained.

3. Pressure Regulation:

Ensure that the air pressure is regulated to a safe level suitable for the equipment and tools being used. High-pressure air streams can cause serious injuries, so it is important to follow the manufacturer’s recommendations and never exceed the maximum allowable pressure.

4. Air Hose Inspection:

Regularly inspect air hoses for signs of damage, such as cuts, abrasions, or leaks. Replace damaged hoses immediately to prevent potential accidents or loss of pressure.

5. Air Blowguns:

Exercise caution when using air blowguns. Never direct compressed air towards yourself or others, as it can cause eye injuries, hearing damage, or dislodge particles that may be harmful if inhaled. Always point blowguns away from people or any sensitive equipment or materials.

6. Air Tool Safety:

Follow proper operating procedures for pneumatic tools. Ensure that tools are in good working condition, and inspect them before each use. Use the appropriate accessories, such as safety guards or shields, to prevent accidental contact with moving parts.

7. Air Compressor Maintenance:

Maintain air compressors according to the manufacturer’s guidelines. Regularly check for leaks, clean or replace filters, and drain moisture from the system. Proper maintenance ensures the safe and efficient operation of the compressor.

8. Training and Education:

Provide adequate training and education to individuals working with compressed air. Ensure they understand the potential hazards, safe operating procedures, and emergency protocols. Encourage open communication regarding safety concerns and implement a culture of safety in the workplace.

9. Lockout/Tagout:

When performing maintenance or repairs on compressed air systems, follow lockout/tagout procedures to isolate the equipment from energy sources and prevent accidental startup. This ensures the safety of the individuals working on the system.

10. Proper Ventilation:

Ensure proper ventilation in enclosed areas where compressed air is used. Compressed air can displace oxygen, leading to a potential risk of asphyxiation. Adequate ventilation helps maintain a safe breathing environment.

By adhering to these safety precautions, individuals can minimize the risks associated with working with compressed air and create a safer work environment.

air compressor

What is the difference between a piston and rotary screw compressor?

Piston compressors and rotary screw compressors are two common types of air compressors with distinct differences in their design and operation. Here’s a detailed explanation of the differences between these two compressor types:

1. Operating Principle:

  • Piston Compressors: Piston compressors, also known as reciprocating compressors, use one or more pistons driven by a crankshaft to compress air. The piston moves up and down within a cylinder, creating a vacuum during the intake stroke and compressing the air during the compression stroke.
  • Rotary Screw Compressors: Rotary screw compressors utilize two intermeshing screws (rotors) to compress air. As the male and female screws rotate, the air is trapped between them and gradually compressed as it moves along the screw threads.

2. Compression Method:

  • Piston Compressors: Piston compressors achieve compression through a positive displacement process. The air is drawn into the cylinder and compressed as the piston moves back and forth. The compression is intermittent, occurring in discrete cycles.
  • Rotary Screw Compressors: Rotary screw compressors also employ a positive displacement method. The compression is continuous as the rotating screws create a continuous flow of air and compress it gradually as it moves along the screw threads.

3. Efficiency:

  • Piston Compressors: Piston compressors are known for their high efficiency at lower flow rates and higher pressures. They are well-suited for applications that require intermittent or variable air demand.
  • Rotary Screw Compressors: Rotary screw compressors are highly efficient for continuous operation and are designed to handle higher flow rates. They are often used in applications with a constant or steady air demand.

4. Noise Level:

  • Piston Compressors: Piston compressors tend to generate more noise during operation due to the reciprocating motion of the pistons and valves.
  • Rotary Screw Compressors: Rotary screw compressors are generally quieter in operation compared to piston compressors. The smooth rotation of the screws contributes to reduced noise levels.

5. Maintenance:

  • Piston Compressors: Piston compressors typically require more frequent maintenance due to the higher number of moving parts, such as pistons, valves, and rings.
  • Rotary Screw Compressors: Rotary screw compressors have fewer moving parts, resulting in lower maintenance requirements. They often have longer service intervals and can operate continuously for extended periods without significant maintenance.

6. Size and Portability:

  • Piston Compressors: Piston compressors are available in both smaller portable models and larger stationary units. Portable piston compressors are commonly used in construction, automotive, and DIY applications.
  • Rotary Screw Compressors: Rotary screw compressors are typically larger and more suitable for stationary installations in industrial and commercial settings. They are less commonly used in portable applications.

These are some of the key differences between piston compressors and rotary screw compressors. The choice between the two depends on factors such as required flow rate, pressure, duty cycle, efficiency, noise level, maintenance needs, and specific application requirements.

China factory China Industrial Silent Oil-Free Electrical Rotary Screw Air Compressor   air compressor CHINAMFG freightChina factory China Industrial Silent Oil-Free Electrical Rotary Screw Air Compressor   air compressor CHINAMFG freight
editor by CX 2024-04-29