What’s the difference of free oil air compressor and oil compressor?

What’s the difference of free oil air compressor and oil compressor? How to distinguish the free oil air compressor and oil compressor?

It depends on the amount of oil containing in the air that creates by the air compressor . Generally, the oil content is larger than 0.01PPM,it is called oil compressors, the oil content is smaller than 0.01PPM ,it is called oil free air compressors.  So the oil content is used to distinguish the oil  air compressor and the free oil air compressor . There is a kind of air compressor with complete free oil, it is not oil lubricated. It uses resin material lubrication, so the final discharge of air without oil completely. It is called complete oil free air compressor, but before this air compressor is easily damaged due to the loss of sealing grease, the quality is not very satisfactory, and the latest development has solved this problem. On the basis of the oil air compressor,  the complete free oil air compressor used the heat resistance piston, so that the bearing grease is no longer lost by high temperature conduction and radiation, so that the lifespan of the oil free compressor is greatly extended, and it has now completely exceeded the service life of the same grade oil machine.

As a famous compressor brand in China, Hong Run compressor technology co., ltd is always dedicated to supply high quality complete free oil air compressors.