Why does the oil-free air compressor still have oil?

Oil-free air compressors are designed to avoid the use of oil in the compression process, but in practice it may be found that the compressed gas still contains oil. This is mainly caused by the following reasons:

the air itself contains oil:

the tiny oil particles that naturally exist in the air will be sucked and compressed by the oil-free air compressor, especially in the high temperature and high humidity environment, the moisture and oil in the air may be more.

Oil contamination due to improper maintenance or operation:

when performing maintenance or repairs, oil-containing lubricants are used or some parts of the air compressor are mishandled, which may cause oil to enter the compression chamber.

Some oil-free air compressors may need to add special lubricating oil to the air to reduce the wear and noise of the compressor. If the amount of oil added is too large or not replaced in time, the oil in the compressed air will increase.

lubricating oil leakage of mechanical parts:

although oil-free air compressors are designed to be oil-free, mechanical parts still require lubrication. If the seal is worn or damaged due to long-term use, it may cause the lubricating oil to leak into the compression chamber, thereby contaminating the compressed gas.

In order to avoid these situations, you can consult Shanghai Granklin Group. The water-lubricated screw air compressor produced by us does not involve lubricating oil in the compression process. At the same time, the compressed gas can be further purified by installing filter equipment to reduce the oil content.

In general, although oil-free air compressors are designed to avoid the use of oil, due to the above reasons, a certain amount of oil may still be contained in the compressed gas. Therefore, when using oil-free air compressors, it is necessary to pay attention to these problems and take corresponding preventive measures.