The difference between micro-oil air compressor and oil-free air compressor

The main difference between the micro-oil air compressor and the oil-free air compressor is reflected in the lubrication method and the use environment.

Lubrication method:

micro-oil air compressor, also known as oil mist air compressor, will inject a small amount of tiny lubricating oil vapor during the air compression process. These lubricating oil vapors mainly serve to reduce the flashing phenomenon of the compressor, reduce the wear of mechanical parts, and cool the compression chamber. Micro oil air compressor usually uses oil mist separator or filter to separate oil mist.

Oil-free air compressor means that no lubricating oil is injected during the compression process, or the amount of oil injected is very small, which can realize oil-free operation. It mainly uses fiber filtration, cooling, compression and drying technologies to purify the air. It is worth noting that the "oil-free" in the oil-free air compressor means that the gas does not come into contact with the oil during the compression process, but the bearings, synchronous gears and other parts of the compressor still need lubrication, but these lubrication parts and compression chambers An effective shaft seal is used to isolate it.

Use environment and application:

micro-oil air compressors are widely used in various fields, including automobile maintenance, electronic manufacturing, food processing, medical equipment, etc. Its advantages are high efficiency, energy saving, high reliability and low maintenance cost, but due to the use of lubricating oil, it may be limited in some environments with extremely high air quality requirements.

Oil-free air compressors are especially suitable for scenarios with high air quality requirements, such as university laboratories, chromatographic analysis, medical and pharmaceutical, food processing, etc. Because it avoids oil contamination, it can provide more pure compressed air.

In summary, the micro-oil air compressor and the oil-free air compressor have their own characteristics and application scenarios. The choice of which type of air compressor mainly depends on the specific use requirements and environmental requirements.