China Best Sales Oil Free Oxygen Air Gas Compressor Industry Highest Precision Air End Industrial Compressor for Oxygen Sale manufacturer

Product Description


OFAC oil-free screw air compressor used Japanese Mitsui’s original technology, who is the only
                           maintenance service provider in China.


Model Power Pressure (bar) Air Flow (m3/min) Noise Level dBA Outlet Size Weight (kgs) Lubricating Water(L) Filter Element (B)-(Z) Dimension LxWxH (mm)
OF-7.5F 7.5kw 10hp 8 1.0 60 RP 3/4 400 22 (25cm) 1 1000*720*1050
OF-11F 11kw 15hp 8 1.6 63 460 1156*845*1250
OF-15F 15kw 20hp 8 2.5 65 RP 1 620 28 (50cm) 1 1306*945*1260
OF-18F 18.5kw 25hp 8 3.0 67 750 33 1520*1060*1390
OF-22F 22kw 30hp 8 3.6 68 840 33 1520*1060*1390
OF-30F 30kw 40hp 8 5.0 69 RP 11/4 1050 66 (25cm) 5 1760*1160*1490
OF-37F 37kw 50hp 8 6.2 71 1100 1760*1160*1490
OF-45S 45kw 60hp 8 7.3 74 RP 11/2 1050 88 1760*1160*1490
OF-45F 45kw 60hp 8 7.3 74 1200 1760*1160*1490
OF-55S 55kw 75hp 8 10 74 RP 2 1250 110 (50cm) 5 1900*1250*1361
OF-55F 55kw 75hp 8 10 74 2200 (50cm) 7 2350*1250*1880
OF-75S 75kw 100hp 8 13 75 1650 (50cm) 5 1900*1250*1361
OF-75F 75kw 100hp 8 13 75 2500 (50cm) 7 2550*1620*1880
OF-90S 90kw 125hp 8 15 76 2050 (50cm) 5 1900*1250*1361
OF-90F 90kw 125hp 8 15 76 2650 (50cm) 7 2550*1620*1880
OF-110S 110kw 150hp 8 20 78 DN 65 2550 130 (50cm) 12 2200*1600*1735
OF-110F 110kw 150hp 8 20 78 3500 130 3000*1700*2250
OF-132S 132kw 175hp 8 23 80 2700 130 2200*1600*2250
OF-160S 160kw 220hp 8 26 82 2900 165 2200*1600*2250
OF-185S 185kw 250hp 8 30 83 DN 100 3300 180 (50cm) 22 2860*1800*1945
OF-200S 200kw 270hp 8 33 83 3500 2860*1800*1945
OF-220S 220kw 300hp 8 36 85 4500 2860*2000*2300
OF-250S 250kw 340hp 8 40 85 4700 2860*2000*2300
OF-315S 315kw 480hp 8 50 90 5000 2860*2000*2300

          F– air cooling method     S– water cooling method

                            The brand “OFAC” specializes in the R&D, manufacturing, sales and service of compressors,
                            oil-free compressors and air end, special gas compressors, various air compressors and
                            post-processing equipment, providing customers with High-quality, environmentally friendly and
                            efficient air system solutions and fast and stable technical services.


                                Q1: Warranty terms of your machine?
                                A1: One year warranty for the machine and technical support according to your needs.

                                Q2: Will you provide some spare parts of the machines?
                                A2: Yes, of course.

                                Q3: What about product package?
                                A3: We pack our products strictly with standard seaworthy case. Rcommend wooden

                                Q4: Can you use our brand?
                                A4: Yes, OEM is available.

                                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 30-45 days.

                                Q6: How Many Staff Are There In your Factory?
                                A6: About 100.
                                Q7: What’s your factory’s production capacity?
                                A7: About 550-650 units per month.

                                Q8: What the exactly address of your factory?
                                A8: Our first workshop located in HangZhou, ZheJiang , second workshop located in
                                       HangZhou, ZheJiang ,  China.

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After-sales Service: Online Support
Warranty: 2 Years
Lubrication Style: Oil-free


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Shipping Cost:

Estimated freight per unit.

about shipping cost and estimated delivery time.
Payment Method:


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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

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.

air compressor

What Is the Impact of Altitude on Gas Air Compressor Performance?

Altitude can have a significant impact on the performance of gas air compressors. Here’s a detailed explanation:

1. Decreased Air Density:

As altitude increases, the air density decreases. This reduction in air density affects the performance of gas air compressors, primarily because compressors rely on the intake of ambient air to generate compressed air. With lower air density at higher altitudes, the compressor’s ability to draw in a sufficient volume of air is reduced.

2. Reduced Compressor Output:

The decrease in air density directly affects the compressor’s output. Gas air compressors may experience a decrease in their maximum airflow and pressure capabilities at higher altitudes. This reduction in output can impact the compressor’s efficiency and its ability to deliver the required compressed air for various applications.

3. Increased Compressor Workload:

At higher altitudes, gas air compressors need to work harder to maintain the desired level of compressed air output. The reduced air density means the compressor must compress a larger volume of air to achieve the same pressure as it would at lower altitudes. This increased workload can lead to higher energy consumption, increased wear and tear on the compressor components, and potentially decreased overall performance and lifespan.

4. Engine Power Loss:

If the gas air compressor is powered by an internal combustion engine (such as gasoline or diesel), altitude can also impact the engine’s performance. As the air density decreases, the engine may experience a power loss due to reduced oxygen availability for combustion. This can result in reduced engine horsepower and torque, affecting the compressor’s ability to generate compressed air.

5. Considerations for Proper Sizing:

When selecting a gas air compressor for use at higher altitudes, it is crucial to consider the specific altitude conditions and adjust the compressor’s size and capacity accordingly. Choosing a compressor with a higher airflow and pressure rating than required at sea level can help compensate for the reduced performance at higher altitudes.

6. Maintenance and Adjustments:

Regular maintenance and adjustments are necessary to optimize the performance of gas air compressors operating at higher altitudes. This includes monitoring and adjusting the compressor’s intake systems, fuel-to-air ratio, and ignition timing to account for the reduced air density and maintain proper combustion efficiency.

In summary, altitude has a notable impact on the performance of gas air compressors. The decrease in air density at higher altitudes leads to reduced compressor output, increased compressor workload, potential engine power loss, and considerations for proper sizing and maintenance. Understanding these effects is crucial for selecting and operating gas air compressors effectively in various altitude conditions.

air compressor

How Does a Gas Air Compressor Work?

A gas air compressor works by utilizing a gas engine to power a compressor pump, which draws in air and compresses it to a higher pressure. The compressed air can then be used for various applications. Here’s a detailed explanation of how a gas air compressor operates:

1. Gas Engine:

A gas air compressor is equipped with a gas engine as its power source. The gas engine is typically fueled by gasoline, diesel, natural gas, or propane. When the engine is started, the fuel is combusted within the engine’s cylinders, generating mechanical energy in the form of rotational motion.

2. Compressor Pump:

The gas engine drives the compressor pump through a mechanical linkage, such as a belt or direct coupling. The compressor pump is responsible for drawing in atmospheric air and compressing it to a higher pressure. There are different types of compressor pumps used in gas air compressors, including reciprocating, rotary screw, or centrifugal, each with its own operating principles.

3. Intake Stroke:

In a reciprocating compressor pump, the intake stroke begins when the piston moves downward within the cylinder. This creates a vacuum, causing the inlet valve to open and atmospheric air to be drawn into the cylinder. In rotary screw or centrifugal compressors, air is continuously drawn in through the intake port as the compressor operates.

4. Compression Stroke:

During the compression stroke in a reciprocating compressor, the piston moves upward, reducing the volume within the cylinder. This compression action causes the air to be compressed and its pressure to increase. In rotary screw compressors, two interlocking screws rotate, trapping and compressing the air between them. In centrifugal compressors, air is accelerated and compressed by high-speed rotating impellers.

5. Discharge Stroke:

Once the air is compressed, the discharge stroke begins in reciprocating compressors. The piston moves upward, further reducing the volume and forcing the compressed air out of the cylinder through the discharge valve. In rotary screw compressors, the compressed air is discharged through an outlet port as the interlocking screws continue to rotate. In centrifugal compressors, the high-pressure air is discharged from the impeller into the surrounding volute casing.

6. Pressure Regulation:

Gas air compressors often include pressure regulation mechanisms to control the output pressure of the compressed air. This can be achieved through pressure switches, regulators, or control systems that adjust the compressor’s operation based on the desired pressure setting. These mechanisms help maintain a consistent and controlled supply of compressed air for the specific application requirements.

7. Storage and Application:

The compressed air produced by the gas air compressor is typically stored in a receiver tank or used directly for applications. The receiver tank helps stabilize the pressure and provides a reservoir of compressed air for immediate use. From the receiver tank, the compressed air can be distributed through pipelines to pneumatic tools, machinery, or other devices that require the compressed air for operation.

Overall, a gas air compressor operates by using a gas engine to power a compressor pump, which draws in air and compresses it to a higher pressure. The compressed air is then regulated and used for various applications, providing a reliable source of power for pneumatic tools, machinery, and other equipment.

China Best Sales Oil Free Oxygen Air Gas Compressor Industry Highest Precision Air End Industrial Compressor for Oxygen Sale   manufacturer China Best Sales Oil Free Oxygen Air Gas Compressor Industry Highest Precision Air End Industrial Compressor for Oxygen Sale   manufacturer
editor by CX 2024-02-02

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