What does oil-free air compressor mean?

Air compressor oil-free means that in the process of compressing air, the air is not in direct contact with the oil, so the compressed air does not contain oil. This oil-free air compressor realizes air compression through oil-free lubrication technology, and its working principle mainly includes steps such as intake air filtration, cooling, compression, and exhaust treatment. Specifically:

air intake filter: The air passes through the air intake filter to remove impurities such as dust, particles and moisture to protect the internal parts of the air compressor.

Cooling: The filtered air enters the cooling system, reduces the temperature through the cooler, reduces the moisture content in the air, and prevents excessive water vapor during the compression process.

Compression: The cooled air enters the compression chamber and is compressed by mechanical devices such as pistons or screws to reduce the volume of the air and increase the pressure.

Exhaust treatment: the compressed high-pressure gas enters the exhaust filter to remove the oil mist and solid particles and ensure that the discharged gas is dry and clean.

Oil-free air compressor has many advantages, such as easy maintenance, no pollution to the environment, can obtain clean compressed air and so on. In addition, its maintenance cycle is relatively long, reducing maintenance costs. However, oil-free air compressors also have some shortcomings, such as heat dissipation problems and bearing wear.

In general, oil-free air compressors have a wide range of applications in many occasions that require high-quality compressed air. When choosing an oil-free air compressor, you need to consider its performance, reliability, maintenance costs, and after-sales service.

Please note that although oil-free air compressors do not come into direct contact with oil during compression, other parts of the machine (such as bearings and seals) may still require the use of lubricating oil. Therefore, when purchasing and using an oil-free air compressor, you should know its technical specifications and instructions in detail.