China wholesaler Silent Electric Screw Air Rotary Compressor Price 30 Kw 40HP 7bar 175 Cfm Oil-Free Screw Mini Gas Compressor air compressor CHINAMFG freight

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, OFC” 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: Two 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 box.

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: 2 Years
Warranty: 2 Years
Lubrication Style: Oil-free


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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 Is the Fuel Efficiency of Gas Air Compressors?

The fuel efficiency of gas air compressors can vary depending on several factors, including the compressor’s design, engine size, load capacity, and usage patterns. Gas air compressors typically use internal combustion engines powered by gasoline or propane to generate the mechanical energy required for compressing air. Here’s a detailed explanation of the factors that can influence the fuel efficiency of gas air compressors:

1. Engine Design and Size:

The design and size of the engine in a gas air compressor can impact its fuel efficiency. Engines with advanced technologies such as fuel injection and electronic controls tend to offer better fuel efficiency compared to older carbureted engines. Additionally, larger engines may consume more fuel to produce the required power, resulting in lower fuel efficiency compared to smaller engines for the same workload.

2. Load Capacity and Usage Patterns:

The load capacity and usage patterns of the gas air compressor play a significant role in fuel efficiency. Compressors operating at or near their maximum load capacity for extended periods may consume more fuel compared to compressors operating at lower loads. Additionally, compressors used intermittently or for lighter tasks may have better fuel efficiency due to reduced demand on the engine.

3. Maintenance and Tuning:

Proper maintenance and tuning of the gas air compressor’s engine can improve fuel efficiency. Regular maintenance tasks such as oil changes, air filter cleaning/replacement, spark plug inspection, and tuning the engine to the manufacturer’s specifications can help ensure optimal engine performance and fuel efficiency.

4. Operating Conditions:

The operating conditions, including ambient temperature, altitude, and humidity, can affect the fuel efficiency of gas air compressors. Extreme temperatures or high altitudes may require the engine to work harder, resulting in increased fuel consumption. Additionally, operating in humid conditions can affect the combustion process and potentially impact fuel efficiency.

5. Fuel Type:

The type of fuel used in the gas air compressor can influence its fuel efficiency. Gasoline and propane are common fuel choices for gas air compressors. The energy content and combustion characteristics of each fuel can affect the amount of fuel consumed per unit of work done. It is important to consider the specific fuel requirements and recommendations of the compressor manufacturer for optimal fuel efficiency.

6. Operator Skills and Practices:

The skills and practices of the operator can also impact fuel efficiency. Proper operation techniques, such as avoiding excessive idling, maintaining consistent engine speeds, and minimizing unnecessary load cycles, can contribute to improved fuel efficiency.

It is important to note that specific fuel efficiency ratings for gas air compressors can vary widely depending on the aforementioned factors. Manufacturers may provide estimated fuel consumption rates or fuel efficiency data for their specific compressor models, which can serve as a reference point when comparing different models or making purchasing decisions.

Ultimately, to maximize fuel efficiency, it is recommended to select a gas air compressor that suits the intended application, perform regular maintenance, follow the manufacturer’s guidelines, and operate the compressor efficiently based on the workload and conditions.

air compressor

Can Gas Air Compressors Be Used in Agriculture?

Yes, gas air compressors can be used in various agricultural applications. Here’s a detailed explanation:

1. Pneumatic Tools and Equipment:

Gas air compressors can power a wide range of pneumatic tools and equipment used in agriculture. These tools include pneumatic drills, impact wrenches, nail guns, staplers, and pneumatic pumps. Gas air compressors provide the necessary compressed air to operate these tools, making various tasks more efficient and convenient on the farm.

2. Irrigation Systems:

Gas air compressors can be used to power irrigation systems in agriculture. They can supply compressed air to operate pneumatic valves, which control the flow of water in irrigation networks. Gas air compressors ensure reliable and efficient operation of irrigation systems, facilitating the distribution of water to crops in a controlled manner.

3. Grain Handling and Storage:

Air compressors play a vital role in grain handling and storage facilities. They are used to power aeration systems that provide airflow to grains stored in silos or bins. Aeration helps control the temperature and moisture levels, preventing spoilage and maintaining grain quality. Gas air compressors provide the airflow necessary for effective aeration in grain storage operations.

4. Cleaning and Maintenance:

In agriculture, gas air compressors are commonly used for cleaning and maintenance tasks. They can power air blowers or air guns to remove dust, debris, or chaff from machinery, equipment, or storage areas. Gas air compressors provide a high-pressure stream of compressed air, facilitating efficient cleaning and maintenance operations.

5. Livestock Operations:

Gas air compressors find applications in livestock operations as well. They can power pneumatic equipment used for animal care, such as pneumatic nail guns for building or repairing livestock enclosures, pneumatic pumps for water distribution, or pneumatic tools for general maintenance tasks.

6. Portable and Versatile:

Gas air compressors are often portable and can be easily transported around the farm, allowing flexibility in agricultural operations. Their versatility makes them suitable for various tasks, from powering tools and equipment in the field to providing compressed air for maintenance or cleaning in different farm locations.

7. Remote Locations:

In agricultural settings where access to electricity may be limited, gas air compressors offer a reliable alternative. They can be powered by gasoline or diesel engines, providing compressed air even in remote areas without electrical infrastructure.

8. Considerations:

When using gas air compressors in agriculture, it is essential to consider factors such as compressor size, capacity, and maintenance requirements. Selecting the right compressor based on the specific needs of the agricultural applications ensures optimal performance and efficiency.

In summary, gas air compressors have various applications in agriculture. They can power pneumatic tools and equipment, operate irrigation systems, facilitate grain handling and storage, assist in cleaning and maintenance tasks, support livestock operations, and offer portability and versatility. Gas air compressors contribute to increased efficiency, convenience, and productivity in agricultural operations.

air compressor

What Is a Gas Air Compressor?

A gas air compressor is a type of air compressor that is powered by a gas engine instead of an electric motor. It uses a combustion engine, typically fueled by gasoline or diesel, to convert fuel energy into mechanical energy, which is then used to compress air. Here’s a detailed explanation of a gas air compressor:

1. Power Source:

A gas air compressor utilizes a gas engine as its power source. The engine can be fueled by gasoline, diesel, or other types of combustible gases, such as natural gas or propane. The combustion engine drives the compressor pump to draw in air and compress it to a higher pressure.

2. Portable and Versatile:

Gas air compressors are often designed to be portable and versatile. The gas engine provides mobility, allowing the compressor to be easily transported and used in different locations, including remote job sites or areas without access to electricity. This makes gas air compressors suitable for applications such as construction projects, outdoor activities, and mobile service operations.

3. Compressor Pump:

The compressor pump in a gas air compressor is responsible for drawing in air and compressing it. The pump can be of various types, including reciprocating, rotary screw, or centrifugal, depending on the specific design of the gas air compressor. The pump’s role is to increase the pressure of the incoming air, resulting in compressed air that can be used for various applications.

4. Pressure Regulation:

Gas air compressors typically feature pressure regulation mechanisms to control the output pressure of the compressed air. This allows users to adjust the pressure according to the requirements of the specific application. The pressure regulation system may include pressure gauges, regulators, and safety valves to ensure safe and reliable operation.

5. Applications:

Gas air compressors find applications in a wide range of industries and activities. They are commonly used in construction sites for powering pneumatic tools such as jackhammers, nail guns, and impact wrenches. Gas air compressors are also utilized in agriculture for operating air-powered machinery like sprayers and pneumatic seeders. Additionally, they are employed in recreational activities such as inflating tires, sports equipment, or inflatable structures.

6. Maintenance and Fuel Considerations:

Gas air compressors require regular maintenance, including engine servicing, oil changes, and filter replacements, to ensure optimal performance and longevity. The type of fuel used in the gas engine also needs to be considered. Gasoline-powered compressors are commonly used in smaller applications, while diesel-powered compressors are preferred for heavy-duty and continuous operation due to their higher fuel efficiency and durability.

Overall, a gas air compressor is an air compressor that is powered by a gas engine, offering mobility and versatility. It provides compressed air for various applications and is commonly used in construction, agriculture, and outdoor activities. Regular maintenance and fuel considerations are essential to ensure reliable operation and optimal performance.

China wholesaler Silent Electric Screw Air Rotary Compressor Price 30 Kw 40HP 7bar 175 Cfm Oil-Free Screw Mini Gas Compressor   air compressor CHINAMFG freightChina wholesaler Silent Electric Screw Air Rotary Compressor Price 30 Kw 40HP 7bar 175 Cfm Oil-Free Screw Mini Gas Compressor   air compressor CHINAMFG freight
editor by CX 2024-01-11

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