Product Description

CHINAMFG Oil-free Air Compressor

BROTIE oil-free lubricated air compressors belong to reciprocating, piston, single action and air-cooled portable air compressors, they are designed for the departments which need pure air source and higher environmental requirements. There is no need to add lubricating oil for this product, the exhaust gas does not contain oil and oil vapor and won’t pollute environment, compressed air consuming equipment and its product, therefore, it is an environment-friendly energy-saving product.

1. When it is used as a general power gas source, it is more convenient in use than oil lubricated air compressor and its maintenance cost is lower.
2. As the simplest and optimum equipment which provides high-quality oilless compressed air, it saves complicated oil filtering and treatment equipment, thus saving a lot of equipment expenditure and maintenance cost.

Select a machine type with at least 20% allowance when determining compressed air consumption.

Please take into account the condition that consumption of compressed air may be increased in the future. Correct type selection will reduce purchase and use cost.

For detailed models, please contact with CHINAMFG with no hesitation.

Model Capacity
(m 3 /min)
Discharge pressure
Motor Power
Size of discharge Air Container Volume
ZW-0.1/7 0.1 0.7 980 ≤ 78 1.5(220V) G1/4″ 0.04 750*350*750
ZW-0.24/7 0.24 0.24 950 ≤ 81 2.2(380V) G1/2″ 0.08 1140*400*900
ZW-0.3/7 0.3 0.7 950 ≤ 81 2.2(380V) G1/2″ 0.08 1140*400*900
VW-0.45/7 0.45 0.7 920 ≤ 83 4(380V) G1/2″ 0.12 1300*460*960
VW-0.6/7 0.6 0.7 950 ≤ 84 5.5(380V) G1/2″ 0.12 1300*460*960
VW-0.42/10 0.42 1.0 920 ≤ 84 4(380V) G1/2″ 0.12 1300*460*960
VW-0.5/14 0.5 1.4 670 ≤ 84 5.5(380V) G1/2″ 0.18 1450*500*1100
WW-0.6/10 0.6 1.0 740 ≤ 84 5.5(380V) G1/2″ 0.18 1450*500*1100
WW-0.9/7 0.9 0.7 810 ≤ 84 7.5(380V) G1/2″ 0.18 1450*500*1100
WW-0.9/10 0.9 1.0 810 ≤ 84 7.5(380V) G1/2″ 0.18 1450*500*1100
WW-0.7/12.5 0.7 1.25 740 ≤ 84 7.5(380V) G1/2″ 0.18 1450*500*1100
WW-1.25/7 1.25 0.7 860 ≤ 85 11(380V) G3/4″ 0.28 1600*650*1200
WW-1.25/10 1.25 1.0 770 ≤ 85 11(380V) G3/4″ 0.28 1600*650*1200
WW-1.6/10 1.6 1.0 820 ≤ 85 15(380V) G3/4″ 0.32 1660*650*1220
WW-1.8/10 1.8 1.0 900 ≤ 86 15(380V) G3/4″ 0.32 1660*650*1220
WW-1.2/10 1.2 1.0 740 ≤ 84 5.5*2(380V) G1″ 0.30 1850*1250*1400
WW-1.8/7 1.8 0.7 810 ≤ 84 7.5*2(380V) G1″ 0.30 1850*1250*1400
WW-1.8/10 1.8 1.0 810 ≤ 84 7.5*2(380V) G1″ 0.30 1850*1250*1400
WW-1.4/12.5 1.4 1.25 740 ≤ 84 7.5*2(380V) G1″ 0.30 1850*1250*1400
WW-2.5/7 2.5 0.7 860 ≤ 86 11*2(380V) G1″ 0.30 1850*1250*1400
WW-2.5/10 2.5 1.0 770 ≤ 86 11*2(380V) G1″ 0.30 1850*1250*1400
WW-3.0/7 3.0 0.7 770 ≤ 86 11*2(380V) G1″ 0.32 1850*1250*1400
WW-3.0/10 3.0 1.0 810 ≤ 86 11*2(380V) G1″ 0.32 1850*1250*1400
WW-3.2/7 3.2 0.7 820 ≤ 86 15*2(380V) G1″ 0.32 1900*1500*1500
WW-3.2/10 3.2 1.0 820 ≤ 86 15*2(380V) G1″ 0.32 1900*1500*1500
WW-3.6/7 3.6 0.7 900 ≤ 86 15*2(380V) G1″ 0.32 1900*1500*1500
WW-3.6/10 3.6 1.0 900 ≤ 86 15*2(380V) G1″ 0.32 1900*1500*1500
WW-4.8/10 4.8 1.0 900 ≤ 86 15*2(380V) 11*1(380V) G3/2″ / 2210*1360*1050

Lubrication Style: Oil-free
Compressed Grade: 1-4
Place of Origin: China
Working Principle: Oil-Free Lubrication Reciprocating Type Booster
Cooling Type: Wind or Water Cooling
Mute: Yes


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.

What Is the Role of Air Receivers in Gas Air Compressor Systems?

Air receivers play a crucial role in gas air compressor systems by serving as storage tanks for compressed air. Here’s a detailed explanation:

1. Storage and Stabilization:

The primary function of an air receiver is to store compressed air generated by the gas air compressor. As the compressor produces compressed air, the air receiver collects and stores it. This storage capacity helps meet fluctuating demand in compressed air usage, providing a buffer between the compressor and the system’s air consumption.

By storing compressed air, the air receiver helps stabilize the supply to the system, reducing pressure fluctuations and ensuring a consistent and reliable flow of compressed air. This is particularly important in applications where the demand for compressed air may vary or experience peaks and valleys.

2. Pressure Regulation:

Another role of the air receiver is to assist in pressure regulation within the gas air compressor system. As compressed air enters the receiver, the pressure inside increases. When the pressure reaches a predetermined upper limit, typically set by a pressure switch or regulator, the compressor stops supplying air, and the excess air is stored in the receiver.

Conversely, when the pressure in the system drops below a certain lower limit, the pressure switch or regulator signals the compressor to start, replenishing the compressed air in the receiver and maintaining the desired pressure level. This cycling of the compressor based on pressure levels helps regulate and control the overall system pressure.

3. Condensate Separation:

During the compression process, moisture or condensate can form in the compressed air due to the cooling effect. The air receiver acts as a reservoir that allows the condensate to settle at the bottom, away from the outlet. The receiver often includes a drain valve at the bottom to facilitate the removal of accumulated condensate, preventing it from reaching downstream equipment and causing potential damage or performance issues.

4. Energy Efficiency:

Air receivers contribute to energy efficiency in gas air compressor systems. They help optimize the operation of the compressor by reducing the occurrence of short-cycling, which refers to frequent on-off cycling of the compressor due to rapid pressure changes. Short-cycling can cause excessive wear on the compressor and reduce its overall efficiency.

The presence of an air receiver allows the compressor to operate in longer and more efficient cycles. The compressor runs until the receiver reaches the upper pressure limit, ensuring a more stable and energy-efficient operation.

5. Air Quality Improvement:

Depending on the design, air receivers can also aid in improving air quality in the compressed air system. They provide a space for the compressed air to cool down, allowing moisture and some contaminants to condense and separate from the air. This can be further enhanced with the use of additional filtration and drying equipment installed downstream of the receiver.

In summary, air receivers play a vital role in gas air compressor systems by providing storage capacity, stabilizing compressed air supply, regulating system pressure, separating condensate, improving energy efficiency, and contributing to air quality control. They are an integral component in ensuring the reliable and efficient operation of compressed air systems across various industries and applications.

What Fuels Are Commonly Used in Gas Air Compressors?

Gas air compressors can be powered by various fuels depending on the specific model and design. The choice of fuel depends on factors such as availability, cost, convenience, and environmental considerations. Here’s a detailed explanation of the fuels commonly used in gas air compressors:

1. Gasoline:

Gasoline is a widely used fuel in gas air compressors, particularly in portable models. Gasoline-powered compressors are popular due to the widespread availability of gasoline and the convenience of refueling. Gasoline engines are generally easy to start, and gasoline is relatively affordable in many regions. However, gasoline-powered compressors may emit more exhaust emissions compared to some other fuel options.

2. Diesel:

Diesel fuel is another common choice for gas air compressors, especially in larger industrial models. Diesel engines are known for their efficiency and durability, making them suitable for heavy-duty applications. Diesel fuel is often more cost-effective than gasoline, and diesel-powered compressors typically offer better fuel efficiency and longer runtime. Diesel compressors are commonly used in construction sites, mining operations, and other industrial settings.

3. Natural Gas:

Natural gas is a clean-burning fuel option for gas air compressors. It is a popular choice in areas where natural gas infrastructure is readily available. Natural gas compressors are often used in natural gas processing plants, pipeline operations, and other applications where natural gas is abundant. Natural gas-powered compressors offer lower emissions compared to gasoline or diesel, making them environmentally friendly.

4. Propane:

Propane, also known as liquefied petroleum gas (LPG), is commonly used as a fuel in gas air compressors. Propane-powered compressors are popular in construction, agriculture, and other industries where propane is used for various applications. Propane is stored in portable tanks, making it convenient for use in portable compressors. Propane-powered compressors are known for their clean combustion, low emissions, and easy availability.

5. Biogas:

In specific applications, gas air compressors can be fueled by biogas, which is produced from the decomposition of organic matter such as agricultural waste, food waste, or wastewater. Biogas compressors are used in biogas production facilities, landfills, and other settings where biogas is generated and utilized as a renewable energy source. The use of biogas as a fuel in compressors contributes to sustainability and reduces dependence on fossil fuels.

It’s important to note that the availability and suitability of these fuel options may vary depending on the region, infrastructure, and specific application requirements. When selecting a gas air compressor, it’s crucial to consider the compatibility of the compressor with the available fuel sources and to follow the manufacturer’s guidelines regarding fuel selection, storage, and safety precautions.

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editor by CX 2023-10-05