Product Description
High Quality Oil-free Oxygen Nitrogen Gas Compressors
Minwen high pressure industrial gas compressor belongs to oil-free reciprocating piston type construction. It is divided into three-stage, four-stage or five-stage compression according to the displacement and pressure. It is divided into air-cooled type and water-cooled type according to the cooling type.
An oil-free compressor is a type of gas compressor that operates without the need for lubricating oil in the compression chamber. Traditional gas compressors use oil to lubricate the moving parts and provide a better seal between the compression chamber and the piston or rotor. However, in certain applications where oil contamination is a concern, such as medical and dental facilities, food processing, electronics manufacturing, and painting, oil-free compressors are preferred.
There is no lubricating oil inside the gas compressors, grease lubricated sealing type bearing is adopted for the rotary moving components, the moving seals inside the cylinder are made of self-lubricating material so as to ensure that the compressed gas will never contact any oil.
The machine adopts automatic control mode with low leakage and noise and without the need to arrange dedicated person for attention, and can operate over long term reliably.
Our Advantages
1. Oil-Free Gas: They deliver high-quality, oil-free compressed gases, which is essential in applications where oil contamination can be detrimental to the end product or process.
2. Reduced Maintenance: Oil-free compressors eliminate the need for oil changes, filter replacements, and oil disposal, resulting in lower maintenance requirements and costs.
3. Environmental Friendliness: The absence of oil reduces the risk of oil leaks or spills, making oil-free compressors environmentally friendly.
4. Improved gas Quality: Oil-free compressors provide cleaner gases, free from oil aerosols or vapors, which is essential in sensitive applications like medical and dental procedures or electronics manufacturing.
Product Parameters
| Model | Inlet pressure Bar  | 
Outlet pressure Bar  | 
Capacity Nm3/h  | 
Power kW  | 
Inlet size  | 
Outlet  size  | 
Dimension mm  | 
Weight kg  | 
 Speed r/min  | 
| WWY-(1- 5)/4-150/200 | 4.0 | 150/ 200 | 5 | 4.0 | Rc1/2 | G5/8 | 1350 *850 *1100 | 380 | 470 | 
| WWY- 10/4-150/200 | 4.0 | 150/ 200 | 10 | 5.5 | Rc1/2 | G5/8 | 1350 *1050 *1100 | 410 | 470 | 
| WWY- 15/4-150/200 | 4.0 | 150/ 200 | 15 | 7.5 | Rc1/2 | G5/8 | 1350 *1050 *1100 | 420 | 640 | 
| WWY-20/4-150/200 | 4.0 | 150/ 200 | 20 | 11 | Rc1/2 | G5/8 | 1350 *1050 *1100 | 430 | 580 | 
| WWY-25/4-150/200 | 4.0 | 150/ 200 | 25 | 11 | Rc1/2 | G5/8 | 1350 *1050 *1100 | 430 | 640 | 
| WWY-30/4-150/200 | 4.0 | 150/ 200 | 30 | 15 | Rc1/2 | G5/8 | 1350 *1050 *1100 | 450 | 470 | 
| WWY-35/4-150/200 | 4.0 | 150/ 200 | 35 | 15 | Rc1/2 | G5/8 | 1350 *1050 *1100 | 450 | 470 | 
| WWY-40/4-150/200 | 4.0 | 150/ 200 | 40 | 15 | Rc1/2 | G5/8 | 1350 *1050 *1100 | 450 | 580 | 
| SWY- 45/4-150/200 | 4.0 | 150/ 200 | 45 | 18.5 | Rc1 | G5/8 | 1450 *1100 *1250 | 520 | 580 | 
| SWY- 50/4-150/200 | 4.0 | 150/ 200 | 50 | 18.5 | Rc1 | G5/8 | 1450 *1100 *1250 | 520 | 580 | 
| SWY- 55/4-150/200 | 4.0 | 150/ 200 | 55 | 18.5 | Rc1 | G5/8 | 1450 *1100 *1250 | 520 | 580 | 
| SWY- 60/4-150/200 | 4.0 | 150/ 200 | 60 | 22 | Rc1 | G5/8 | 1450 *1100 *1250 | 540 | 640 | 
| SWY- 65/4-150/200 | 4.0 | 150/ 200 | 65 | 22 | Rc1 | G5/8 | 1450 *1100 *1250 | 540 | 720 | 
| SWY- 70/4-150/200 | 4.0 | 150/ 200 | 70 | 22 | Rc1 | G5/8 | 1450 *1100 *1250 | 540 | 720 | 
| SWY-75/4-150/200 | 4.0 | 150/ 200 | 75 | 22 | Rc1 | G5/8 | 1450*1100*1250 | 540 | 720 | 
Notes: More specification are available based on clients‘ special requirement.
Company Profile
HangZhou Minwen Cryogenic Equipment Co., Ltd. is an established company specializing in industrial gas equipment and cryogenic solutions. With stable economy development in China, Minwen constantly strengthens its supply chain capabilities and resource integration capabilities. We are always on the way of promoting the efficiency and competitiveness, to guarantee high-quality performance of our services.
With advanced technologies and strict quality management, our products have passed the major international third-party quality control certifications such as ASME, CE, and Famous classification society such like BV, TUV, Lloyds and etc.
At Minwen, we pride ourselves on building long-lasting relationships with our clients. We will work with you every step of the way to ensure that your needs are met and your expectations are exceeded. We are committed to providing you with the best price and service we can offer, and we are confident in our ability to deliver top-quality solutions that cater to your specific set of requirements.
FAQ
1. Which countries you can ship the equipment to? 
We ship to worldwide, such as Russia, Paraguay, Brazil, Colombia, Indonesia, Middle East, Africa, etc. 
2. May I have the best price from you?
Sure. We are always on the way of promoting our competitiveness on products price and service.
3. Is your equipment quality good?
Yes. With advanced technologies and strict quality management, our products have passed the major international third-party quality control certifications such as ASME, CE, and Famous classification society such like BV, TUV, Lloyds
4. Do you provide one-stop service so I can save my time and labor?
Yes. Minwen constantly strengthens its supply chain capabilities and resource integration capabilities. You will own a professional team in China by cooperating with Minwen.
5. Where is your company located?
Our Export Office is located in HangZhou, with associated factories across China. This helps our international clients to integrate all the high quality resources together with Minwen.
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| After-sales Service: | Lifetime Aftersales Service | 
|---|---|
| Warranty: | Lifetime Aftersales Service | 
| Lubrication Style: | Oil-free | 
| Cooling System: | Water/ Air Cooling | 
| Cylinder Arrangement: | Balanced Opposed Arrangement | 
| Cylinder Position: | Vertical | 
| Customization: | 
 
                                            Available
                                         
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How Do You Troubleshoot Common Issues with Gas Air Compressors?
Troubleshooting common issues with gas air compressors involves identifying and addressing potential problems that may arise during operation. Here’s a detailed explanation of the troubleshooting process:
1. Start with Safety Precautions:
Prior to troubleshooting, ensure that the gas air compressor is turned off and disconnected from the power source. Follow proper safety procedures, such as wearing appropriate personal protective equipment (PPE), to avoid accidents or injuries.
2. Check Power Supply and Connections:
Verify that the compressor is receiving power and that all electrical connections are secure. Inspect the power cord, plug, and any switches or controls to ensure they are functioning properly. If the compressor is equipped with a battery, check its charge level and connections.
3. Check Fuel Supply:
For gas air compressors that use gasoline or propane, ensure that there is an adequate fuel supply. Check the fuel tank level and verify that the fuel shut-off valve is open. If the compressor has been sitting idle for an extended period, old or stale fuel may cause starting issues. Consider draining and replacing the fuel if necessary.
4. Inspect Air Filters:
Dirty or clogged air filters can restrict airflow and affect the compressor’s performance. Check the intake air filters and clean or replace them as needed. Clogged filters can be cleaned with compressed air or washed with mild detergent and water, depending on the type of filter.
5. Check Oil Level and Quality:
If the gas air compressor has an engine with an oil reservoir, verify the oil level using the dipstick or oil level indicator. Insufficient oil can lead to engine damage or poor performance. Additionally, check the oil quality to ensure it is clean and within the recommended viscosity range. If needed, change the oil following the manufacturer’s guidelines.
6. Inspect Spark Plug:
If the gas air compressor uses a spark plug ignition system, inspect the spark plug for signs of damage or fouling. Clean or replace the spark plug if necessary, following the manufacturer’s recommendations for gap setting and torque.
7. Check Belts and Pulleys:
Inspect the belts and pulleys that drive the compressor pump. Loose or worn belts can cause slippage and affect the compressor’s performance. Tighten or replace any damaged belts, and ensure that the pulleys are properly aligned.
8. Listen for Unusual Noises:
During operation, listen for any unusual or excessive noises, such as grinding, rattling, or squealing sounds. Unusual noises could indicate mechanical issues, loose components, or improper lubrication. If identified, consult the compressor’s manual or contact a qualified technician for further inspection and repair.
9. Consult the Owner’s Manual:
If troubleshooting steps do not resolve the issue, refer to the compressor’s owner’s manual for specific troubleshooting guidance. The manual may provide additional troubleshooting steps, diagnostic charts, or recommended maintenance procedures.
10. Seek Professional Assistance:
If the issue persists or if you are unsure about performing further troubleshooting steps, it is recommended to seek assistance from a qualified technician or contact the manufacturer’s customer support for guidance.
Remember to always prioritize safety and follow proper maintenance practices to prevent issues and ensure the reliable performance of the gas air compressor.
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Can Gas Air Compressors Be Used for Gas Line Maintenance?
Gas air compressors can be used for certain aspects of gas line maintenance, primarily for tasks that require compressed air. Here’s a detailed explanation:
1. Clearing Debris and Cleaning:
Gas air compressors can be utilized to clear debris and clean gas lines. Compressed air can be directed through the gas lines to dislodge and remove dirt, dust, rust particles, or other contaminants that may accumulate over time. This helps maintain the integrity and efficiency of the gas lines.
2. Pressure Testing:
Gas line maintenance often involves pressure testing to ensure the lines can withstand the required operating pressures. Gas air compressors can provide the necessary compressed air to pressurize the lines for testing purposes. By pressurizing the gas lines with compressed air, technicians can identify any leaks or weaknesses in the system.
3. Leak Detection:
Gas air compressors can also be used in conjunction with appropriate leak detection equipment to identify and locate gas leaks in the gas lines. Compressed air can be introduced into the lines, and the detection equipment can then identify any areas where the compressed air escapes, indicating a potential gas leak.
4. Valve and Equipment Maintenance:
Gas line maintenance may involve the inspection, maintenance, or replacement of valves and associated equipment. Compressed air can be used to clean and blow out debris from valves, purge lines, or assist in the disassembly and reassembly of components.
5. Pipe Drying:
Gas air compressors can aid in drying gas lines after maintenance or repairs. By blowing compressed air through the lines, any residual moisture can be removed, ensuring the gas lines are dry before being put back into service.
6. Precautions and Regulations:
When using gas air compressors for gas line maintenance, it is essential to follow safety precautions and adhere to relevant regulations. Gas line maintenance often involves working in hazardous environments, and proper training, equipment, and procedures must be followed to ensure the safety of personnel and the integrity of the gas system.
It is important to note that gas air compressors should not be used directly for pressurizing or transporting natural gas or other combustible gases. Gas line maintenance tasks involving gas air compressors primarily focus on using compressed air for specific maintenance and testing purposes, as outlined above.
In summary, gas air compressors can be useful for certain aspects of gas line maintenance, including clearing debris, pressure testing, leak detection, valve and equipment maintenance, and pipe drying. However, it is crucial to follow safety guidelines and regulations when working with gas lines and compressed air to ensure the safety and integrity of the gas system.
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What Safety Precautions Should Be Taken When Operating Gas Air Compressors?
Operating gas air compressors safely is essential to prevent accidents, injuries, and equipment damage. It’s important to follow proper safety precautions to ensure a safe working environment. Here’s a detailed explanation of the safety precautions that should be taken when operating gas air compressors:
1. Read and Follow the Manufacturer’s Instructions:
Before operating a gas air compressor, carefully read and understand the manufacturer’s instructions, user manual, and safety guidelines. Follow the recommended procedures, maintenance schedules, and any specific instructions provided by the manufacturer.
2. Provide Adequate Ventilation:
Gas air compressors generate exhaust fumes and heat during operation. Ensure that the operating area is well-ventilated to prevent the accumulation of exhaust gases, which can be harmful or even fatal in high concentrations. If operating indoors, use ventilation systems or open windows and doors to allow fresh air circulation.
3. Wear Personal Protective Equipment (PPE):
Wear appropriate personal protective equipment (PPE) when operating a gas air compressor. This may include safety glasses, hearing protection, gloves, and sturdy footwear. PPE helps protect against potential hazards such as flying debris, noise exposure, and hand injuries.
4. Perform Regular Maintenance:
Maintain the gas air compressor according to the manufacturer’s recommendations. Regularly inspect the compressor for any signs of wear, damage, or leaks. Keep the compressor clean and free from debris. Replace worn-out parts and components as needed to ensure safe and efficient operation.
5. Preventive Measures for Fuel Handling:
If the gas air compressor is powered by fuels such as gasoline, diesel, or propane, take appropriate precautions for fuel handling:
- Store fuel in approved containers and in well-ventilated areas away from ignition sources.
 - Refuel the compressor in a well-ventilated outdoor area, following proper refueling procedures and avoiding spills.
 - Handle fuel with caution, ensuring that there are no fuel leaks or spills near the compressor.
 - Never smoke or use open flames near the compressor or fuel storage areas.
 
6. Use Proper Electrical Connections:
If the gas air compressor requires electrical power, follow these electrical safety precautions:
- Ensure that the electrical connections and wiring are properly grounded and in compliance with local electrical codes.
 - Avoid using extension cords unless recommended by the manufacturer.
 - Inspect electrical cords and plugs for damage before use.
 - Do not overload electrical circuits or use improper voltage sources.
 
7. Secure the Compressor:
Ensure that the gas air compressor is securely positioned and stable during operation. Use appropriate mounting or anchoring methods, especially for portable compressors. This helps prevent tipping, vibrations, and movement that could lead to accidents or injuries.
8. Familiarize Yourself with Emergency Procedures:
Be familiar with emergency procedures and know how to shut off the compressor quickly in case of an emergency or malfunction. Have fire extinguishers readily available and know how to use them effectively. Develop an emergency action plan and communicate it to all personnel working with or around the compressor.
It’s crucial to prioritize safety when operating gas air compressors. By following these safety precautions and using common sense, you can minimize the risks associated with compressor operation and create a safer work environment for yourself and others.


editor by CX 2024-02-08