China Professional Oil Free Screw Air Compressor 15 Kw ~ 185 Kw Low Pressure AC Compresor air compressor for sale

Product Description

                     High Quality Screw Air compressor 

Our company specialize in making various kinds of compressors, such as:Diaphragm compressor,Piston compressor, screw Air compressor,Nitrogen generator,Oxygen generator ,Gas cylinder,etc. All products can be customized according to your parameters and other requirements.

The CHINAMFG is a volume -type gas compression machine with a volume of work volume. The compression of the gas is achieved by changes in volume, and the change of the volume is to achieve a rotation movement in the case with a pair of rotor of the compressor.
Basic structure of the screw air compressor: In the body of the compressor, a pair of intertwined spiral rotors are parallel. Usually, there is a rotor with convex teeth outside the ball, which is called yang rotor or yang screw. The rotor with concave teeth in the festival is called a pussy rotor or yin screw. Generally, the yang rotor is connected to the original motivation. Axial force. The cylindrical roller bearing at both ends of the rotor enables the rotor to achieve radial positioning and is underneath the radial force in the compressor. At both ends of the compressor body, a certain shape and size of the pores are opened respectively. One is used for inhalation, which is called the air intake; the other is used for exhaust, called the exhaust port.
Customized is accepted , Pls provide the following information to us :
1.Working Pressure : ____ Bar 
2.Rated Power : _____ KW/HP
 

Do you really choose the right Screw compressor?

About Power Saving

1. The annual electricity bill for purchasing a 37KW ordinary screw air compressor is 37KWx24hx365 days x1. 2 (electric fee) xO. 6 (loading) Power consumption is as high as 233.3366 million! Power saving after switching to permanent magnet variable frequency screw air compressor: 23. 3366×30% save electric fee 7. 00.98 million!
 

Power

Minimum power saving (KW – h) 20%

Maximum power saving (KW – h) 40%

7.5KW

12000

24000

11KW

17600

35200

15KW

24000

48000

22KW

35200

70400

37KW

59200

118400

45KW

72000

144000

55KW

88000

176000

75KW

120000

240000

90KW

144000

288000

Advantages of screw air compressor :
01.
Advanced Medium Voltage Dual Stage Mainframe
1. Two-stage integrated design, oil mist spray cooling is used between stages, which reduces the temperature of the air, and the compression process is close to the most energy-saving isothermal compression. In principle, two-stage compression saves 5%-8% of energy compared to single-machine compression ;
2. It is suitable for the compression ratio matching of medium voltage, the leakage in the main engine is small, and the volumetric efficiency is high;
3. The bearing adopts imported heavy-duty bearing, which makes the force of the rotor better; the two-stage rotors are driven by helical gears respectively, so that each stage of the rotor has the best linear speed;
4. The third-generation asymmetric rotor technology, the tooth surface is processed by the German KAPP rotor grinder, creating a high-precision rotor, which is the first guarantee for the high efficiency and stability of the host.
02.High efficiency permanent magnet synchronous motor
1. IP54 protection grade, which is more stable and reliable than IP23 in harsh environment;
2. Low temperature rise design, higher efficiency, and extended the service life of the motor;
3. Use ceramic plated bearings to completely eliminate the influence of shaft current on bearings;
4. It is made of rare earth permanent magnet materials, with large torque and small current during startup and operation;
5. With reasonable magnetic field design and magnetic density distribution, the working frequency range of energy-saving motors is wider and the operating noise is low;
6. Cooperating with the operation of the frequency converter, the frequency conversion soft start is realized, which avoids the strong mechanical impact of the machine and equipment when the motor is started at full pressure, and is conducive
to protecting the mechanical equipment, reducing equipment maintenance and improving the reliability of the equipment.
03. Special valve group
1. Intake valve: It adopts a special normally closed butterfly valve for medium voltage, with a non-return function, stable operation, high precision of air volume control, built-in noise reduction design, low cavitation noise and long service life;
2. Minimum pressure maintenance valve: special valve for medium voltage, high pressure resistance, high temperature resistance, accurate opening pressure, ensuring stable pressure in the barrel, ultra-fast return to seat, strong sealing, ensuring no backflow of gas, low pressure loss and high efficiency ;
3. Temperature control valve: The unit is equipped with a mixed-flow temperature control valve to ensure that the unit is more convenient to start in a low temperature environment, and to ensure the oil supply of the unit at any time; by controlling the oil supply temperature of the main engine to ensure that the unit is in the best performance state;
4. Oil cut-off valve: special normally closed valve for medium voltage, controlled by the exhaust pressure of the machine head. When starting up, the valve opens quickly to ensure that the compressor is lubricated and warmed up as soon as possible; when shutting down, the valve prevents oil from being ejected from the intake end.
4.Advanced and reliable electric control system
1. Large-size color LCD touch screen, with good man-machine communication interface, touch screen with anti-mistouch and sleep function;
2. It adopts double frequency conversion system, which is more energy-saving. The frequency converter and the motor are perfectly matched, and the low frequency and high torque can output 180% of the rated torque;
3. According to the characteristics of medium voltage, a special program is developed, with multiple pressure sensors and multiple temperature sensors, which can comprehensively detect the operating status of the unit, and automatically control the machine status without special care;
4. Configure the Internet of Things, you can check the operating status of the unit on the mobile phone;
5. Independent air duct design, suitable for various working conditions.
5.Silent centrifugal fan
1. Adopt centrifugal fan, brand-new separate radial cooling fan design, with special cooler, better cooling effect and more energy saving;
2. Compared with axial flow fans, centrifugal fans have higher wind pressure and lower noise;
3. Using variable frequency fan control, the oil temperature is constant, prolonging the service life of lubricating oil;
4. Due to the high wind pressure, the cooler and the filter are less likely to be blocked.
6..High quality triple filter

1. The filtration area of the air filter exceeds 150% of the normal requirement, the inlet pressure loss is low, and the energy efficiency is good;2. The oil filter adopts a full-flow built-in pressure-bearing oil filter suitable for medium voltage conditions. The rated processing capacity of the oil filter is 1.3 times the circulating oil volume. The imported filter material and the design scheme of large margin are selected, which has high filtration precision and good durability.
3. The oil is divided into special customized oil, which is designed and developed for medium-pressure working conditions, with wide applicable pressure range, good separation effect and low operating pressure loss; imported glass fiber material is selected;
4. The design of the 3 filter positions is reasonable, the maintenance is convenient, and the downtime is reduced.
High quality and efficient coupling
1. The coupling is a torsional elastic coupling with a failure protection function, which can effectively damp and reduce the vibration and impact generated during operation;
2. The elastic body is only under pressure and can bear a larger load, and the drum-shaped teeth of the elastic body can avoid stress concentration.   
Main Parameter

Technical parameters of oil-free water-lubricated permanent magnet variable frequency screw compressor
HYW-G Working pressure Exhaust volume  Power  Noise Air outlet pipe diameter  Net weight Dimensions(mm)
Water lubricated series bar psig (m3/min) cfm kW hp dB   kg Length Width Height
HYWV-7G 7 102 0.7-1.2 24.7-42.4 7.5 10 58±3 G1″ 500 1135 800 1000
8 116 0.6-1.1 21.2-38.8 7.5 10 58±3 G1″ 500 1135 800 1000
10 145 0.5-0.9 17.7-31.8 7.5 10 58±3 G1″ 500 1135 800 1000
HYWV-11G 7 102 1.0-1.6 35.3-56.5 11 15 58±3 G1″ 500 1135 800 1000
8 116 0.9-1.5 31.8-53 11 15 58±3 G1″ 500 1135 800 1000
10 145 0.7-1.3 24.7-45.9 11 15 58±3 G1″ 500 1135 800 1000
HYWV-15G 7 102 1.1-2 38.8-71 15 20 60±3 G1″ 550 1400 1000 1200
8 116 1-1.9 35.4-67.3 15 20 60±3 G1″ 550 1400 1000 1200
10 145 / / 15 20 60±3 G1″ 550 1400 1000 1200
HYWV-15G 7 102 / / 15 20 60±3 G1″ 550 1170 900 1100
8 116 / / 15 20 60±3 G1″ 550 1170 900 1100
10 145 0.9-1.6 31.8-56.6 15 20 60±3 G1″ 550 1170 900 1100
HYWV-18.5G 7 102 1.8-3.1 63.6-109.5 18.5 25 61 ±3 G1″ 600 1400 1000 1200
8 116 1.6-2.8 56.5-98.9 18.5 25 61 ±3 G1″ 600 1400 1000 1200
10 145 1.5-2.5 53-88.3 18.5 25 61±3 G1″ 600 1400 1000 1200
HYWV-22G 7 102 2.2-3.7 77.7-130.7 22 30 61 ±3 G1″ 655 1400 1000 1200
8 116 2.0-3.4 70.6-120.1 22 30 61 ±3 G1″ 655 1400 1000 1200
10 145 1.8-3.0 63.6-105.9 22 30 61 ±3 G1″ 655 1400 1000 1200
HYWV-30G 7 102 3.1-5.2 109.5-183.6 30 40 64±3 G11/2″ 1150 1920 1170 1320
8 116 2.8-4.7 98.9-166 30 40 64±3 G11/2″ 1150 1920 1170 1320
10 145 2.5-4.3 88.3-151.9 30 40 64±3 G11/2″ 1150 1920 1170 1320
HYWV-37G 7 102 3.6-6.1 127.1-215.4 37 50 64±3 G11/2″ 1200 1920 1170 1320
8 116 3.3-5.6 116.5-197.8 37 50 64±3 G11/2″ 1200 1920 1170 1320
10 145 3.0-5.0 105.9-176.6 37 50 64±3 G11/2″ 1200 1920 1170 1320
HYWV-45G 7 102 4.5-7.5 158.9-264.9 45 60 66±3 G11/2″ 1320 1920 1170 1320
8 116 4.0-6.8 141.3-240.1 45 60 66±3 G11/2″ 1320 1920 1170 1320
10 145 3.6-6.0 127.1-211.9 45 60 66±3 G11/2″ 1320 1920 1170 1320
HYWV-55G 7 102 6.0-10.0 211.9-353.1 55 75 66±3 DN50 1520 1930 1320 1535
8 116 5.4-9.0 191-317.8 55 75 66±3 DN50 1520 1930 1320 1535
10 145 4.6-7.8 162.4-275.5 55 75 66±3 DN50 1520 1930 1320 1535
HYWV-75G  7 102 7.8-13.0 275.5-459.1 75 100 70±3 DN50 1620 1930 1320 1535
8 116 7.2-12.0 254.3-423.8 75 100 70±3 DN50 1620 1930 1320 1535
10 145 6.0-10.0 211.9-353.1 75 100 70±3 DN50 1620 1930 1320 1535
HYWV-90G 7 102 9.3-15.5 328.4-547.4 90 120 70±3 DN50 1800 1930 1320 1535
8 116 8.4-14.0 296.6-494.4 90 120 70±3 DN50 1800 1930 1320 1535
10 145 7.5-12.5 264.9-414 90 120 70±3 DN50 1800 1930 1320 1535
HYWV-110G 7 102 12.0-20.0 423.8-706.3 110 150 72±3 DN80 3100 2300 1600 1750
8 116 10.8-18.0 381.4-635.7 110 150 72±3 DN80 3100 2300 1600 1750
10 145 9.6-16.0 339-565 110 150 72±3 DN80 3100 2300 1600 1750
HYWV-132G 7 102 15.0-25.0 527.9-882.9 132 175 72±3 DN80 3250 2300 1600 1750
8 116 13.8-23.0 487.3-812.2 132 175 72±3 DN80 3250 2300 1600 1750
10 145 12.0-20.0 423.8-706.3 132 175 72±3 DN80 3250 2300 1600 1750
HYWV-160G 7 102 16.2-27.0 572.1-953.5 160 215 72±3 DN100 4500 2860 1600 1800
8 116 15.3-25.5 540.3-900.5 160 215 72±3 DN100 4500 2860 1600 1800
10 145 14.4-24.0 508.5-847.6 160 215 72±3 DN100 4500 2860 1600 1800
HYWV-185G 7 102 18.0-30.0 635.7-1059.4 185 250 74±3 DN100 4500 2860 1600 1800
8 116 16.8-28.0 593.3-988.8 185 250 74±3 DN100 4500 2860 1600 1800
10 145 15.0-25.0 529.7-882.9 185 250 74±3 DN100 4500 2860 1600 1800
HYWV-200G 7 102 21.6-36.0 762.8-1271.3 200 270 74±3 DN125 4800 3150 1850 2050
8 116 19.8-33.0 699.2-1165.4 200 270 74±3 DN125 4800 3150 1850 2050
10 145 16.2-27.0 572.1-953.5 200 270 74±3 DN125 4800 3150 1850 2050
HYWV-250G 7 102 25.8-43.0 911.1-1518.5 250 350 74±3 DN125 5200 3150 1850 2050
8 116 24.6-41.0 868.7-1447.9 250 350 74±3 DN125 5200 3150 1850 2050
10 145 22.8-38.0 805.2-1342 250 350 74±3 DN125 5200 3150 1850 2050

 

 

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Packing & Delivery

 

 

 

 

 

 

 

Workshop of natural gas compressor 
Our products 
Our Certificate : CE and ISO certification
Our exhibition for the gas compressor 
Our Service for diaphragm compressor : 
1.Service time : 24*7 Hours
2.Customized Service 
3.Perfect pre-sale,sale,after-sales service
4.FAT
5.Onsite commissioning Service
6.18 months warranty period

FAQ :
Q1.How about your after-sales service?
A: 1. Provide customers with intallation and commissioning online instructions.
2. Well-trained engineers available to overseas after-sales service.

Q2.What’s payment term?
A: T/T, L/C, D/P, Western Union, Trade Assurance and etc. Also we could accept USD, RMB, GBP, Euro and other currency.

Q3 : How long is your air compressor warranty?
A: Usually 1 year /12 Months for whole compressor machine, 2years/24months for air end (except maintenance spare parts.). And we can provide further warranty if necessary.

 

After-sales Service: 18 Months
Warranty: 18 Months
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

What Safety Precautions Should Be Taken When Operating Screw Compressors?

When operating screw compressors, it is important to follow specific safety precautions to ensure the well-being of personnel and prevent potential accidents. Here’s a detailed explanation:

1. Familiarize Yourself with the Equipment:

  • Before operating a screw compressor, thoroughly read and understand the manufacturer’s instructions, safety guidelines, and operating procedures. Familiarize yourself with the specific features, controls, and safety devices of the compressor.

2. Wear Appropriate Personal Protective Equipment (PPE):

  • Wear the necessary PPE, such as safety glasses, hearing protection, gloves, and appropriate clothing, when operating the compressor. PPE helps protect against potential hazards, including flying debris, noise, and contact with hot or moving parts.

3. Ensure Proper Ventilation:

  • Operate the screw compressor in a well-ventilated area to prevent the buildup of potentially harmful gases or fumes. Ensure that the compressor’s intake and exhaust vents are not obstructed, allowing for adequate airflow.

4. Compressor Location:

  • Position the compressor on a stable and level surface to prevent tipping or instability during operation. Ensure that the compressor is located away from flammable materials, heat sources, or sources of ignition.

5. Electrical Safety:

  • Follow electrical safety guidelines and ensure that the compressor is properly grounded. Avoid using damaged or frayed electrical cords and ensure that the electrical connections are secure.

6. Lockout/Tagout Procedures:

  • Before performing any maintenance or repair tasks on the compressor, follow lockout/tagout procedures to isolate electrical power and prevent accidental startup. Lockout/tagout procedures help protect against unexpected energization of the compressor or its components.

7. Pressure Relief:

  • Before performing any maintenance tasks or opening the compressor, ensure that all pressure has been relieved from the system. Follow proper procedures for depressurizing the compressor and associated piping to avoid sudden releases of pressure.

8. Hot Surfaces:

  • Be cautious of hot surfaces, such as compressor casings, piping, or discharge components. Allow sufficient cooling time before touching or performing maintenance tasks on hot surfaces to avoid burns.

9. Maintenance and Inspection:

  • Adhere to the manufacturer’s recommended maintenance schedule and perform regular inspections of the compressor. Replace any worn or damaged components promptly to prevent potential hazards or malfunctions.

10. Emergency Procedures:

  • Be familiar with emergency procedures, including how to shut down the compressor in case of an emergency, how to respond to leaks or spills, and how to handle fire or electrical incidents. Have emergency contact information readily available.

11. Training and Qualified Personnel:

  • Ensure that operators and maintenance personnel are adequately trained in the safe operation and maintenance of screw compressors. Only allow qualified personnel to perform maintenance or repair tasks.

It is essential to consult the specific safety guidelines provided by the manufacturer of the screw compressor as they may include additional precautions or recommendations.

In summary, when operating screw compressors, it is important to familiarize yourself with the equipment, wear appropriate PPE, ensure proper ventilation, follow electrical safety measures, implement lockout/tagout procedures, be cautious of hot surfaces, perform regular maintenance and inspections, and be prepared with emergency procedures. By following these safety precautions, the risk of accidents or injuries can be minimized, ensuring a safe working environment when operating screw compressors.

air compressor

Are There Regulations Governing the Use of Screw Compressors in Certain Industries?

Yes, there are regulations governing the use of screw compressors in certain industries. Here’s a detailed explanation:

1. Occupational Safety and Health Administration (OSHA):

In the United States, OSHA sets standards and regulations to ensure the safety and health of workers. While OSHA does not have specific regulations solely focused on screw compressors, they have general requirements that apply to compressed air systems, including screw compressors. These requirements cover aspects such as electrical safety, guarding of moving parts, and proper maintenance practices to ensure worker safety.

2. Environmental Protection Agency (EPA):

The EPA in the United States regulates air emissions to protect the environment and public health. While screw compressors themselves are not directly regulated, if the compressed air is used in processes that emit pollutants, such as in industrial manufacturing, the EPA may have regulations that apply to those specific industries or processes.

3. Industry-Specific Regulations:

Certain industries have specific regulations that govern the use of screw compressors or compressed air systems. These regulations are often aimed at ensuring product quality, safety, and environmental compliance. Some examples include:

a) Food and Beverage Industry: The food and beverage industry often has strict regulations to ensure product safety and prevent contamination. Compressed air used in processes such as packaging, conveying, or powering equipment may need to meet specific quality standards, such as those established by the Food and Drug Administration (FDA) or the Global Food Safety Initiative (GFSI).

b) Pharmaceutical Industry: The pharmaceutical industry has stringent regulations to ensure product quality, safety, and compliance with Good Manufacturing Practices (GMP). Compressed air used in pharmaceutical manufacturing processes must meet specific standards, such as those outlined in the United States Pharmacopeia (USP) or the European Pharmacopoeia (Ph. Eur.).

c) Electronics Industry: The electronics industry often requires clean and dry compressed air to prevent damage to sensitive electronic components. Standards such as ISO 8573, which specify air purity classes for different contaminants in compressed air systems, may be applicable.

d) Automotive Industry: The automotive industry may have regulations and standards related to the use of compressed air in manufacturing processes, such as painting or pneumatic tools. These regulations often focus on worker safety, product quality, and environmental compliance.

It’s important for organizations in these industries to be aware of and comply with the relevant regulations governing the use of screw compressors. Compliance helps ensure the safety of workers, product quality, environmental protection, and overall regulatory compliance.

It’s worth noting that regulations may vary by country and region, so it’s essential to consult the specific regulations applicable to the industry and location where the screw compressors are being used.

air compressor

What Are the Advantages of Using a Screw Compressor?

Using a screw compressor offers several advantages in various applications. Here’s a detailed explanation:

High Efficiency:

Screw compressors are known for their high efficiency in converting electrical power into compressed air or gas. The rotary positive displacement design of screw compressors allows them to deliver a large volume of compressed air or gas with minimal energy loss. This high efficiency results in cost savings and reduced energy consumption compared to other types of compressors.

Continuous Operation:

One of the key advantages of screw compressors is their ability to provide a continuous flow of compressed air or gas. The interlocking helical rotors ensure a smooth and continuous compression process without pulsations. This feature is particularly beneficial in applications that require a steady and reliable source of compressed air, such as in manufacturing plants and industrial processes.

Compact Design:

Screw compressors are known for their compact design, which allows for space-saving installation. They have a relatively small footprint compared to other types of compressors, making them suitable for applications where space is limited. The compact design also facilitates ease of installation and integration into existing systems.

Low Vibration and Noise Levels:

Screw compressors are designed to operate with low vibration levels, resulting in smooth and quiet operation. The interlocking rotors and balanced design help in minimizing vibrations, reducing the need for additional vibration isolation measures. The low noise levels make screw compressors suitable for applications where noise reduction is important, such as in office environments or noise-sensitive industrial settings.

Wide Range of Capacities:

Screw compressors are available in a wide range of capacities, allowing for flexibility in meeting different compressed air or gas requirements. Whether it’s a small-scale application or a large industrial process, there are screw compressors available to match the specific capacity needs. This versatility makes screw compressors suitable for a variety of industries and applications.

Oil-Injected and Oil-Free Options:

Screw compressors are offered in both oil-injected and oil-free variants, providing options to meet different application requirements. Oil-injected screw compressors use lubricating oil for cooling, sealing, and reducing friction between the rotors. They are commonly used in industrial applications where a small amount of oil in the compressed air is acceptable. Oil-free screw compressors, on the other hand, eliminate the need for oil and provide contaminant-free compressed air. They are preferred in industries such as food and beverage, pharmaceuticals, and electronics, where oil-free air is critical.

Overall, using a screw compressor offers advantages such as high efficiency, continuous operation, compact design, low vibration and noise levels, capacity flexibility, and options for oil-injected or oil-free operation. These benefits make screw compressors a popular choice in various industries for a wide range of applications.

China Professional Oil Free Screw Air Compressor 15 Kw ~ 185 Kw Low Pressure AC Compresor   air compressor for saleChina Professional Oil Free Screw Air Compressor 15 Kw ~ 185 Kw Low Pressure AC Compresor   air compressor for sale
editor by CX 2023-10-27

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