The role of the oil in the air compressor is to lubricate, seal and cool the compressed air. If there is no exact need for oil-free compressed air, it is more economical to use an oil-lubricated compressor such as an oil-injected screw compressor. Oil-free compressors are much more expensive than oil-lubricated air compressors.
If you have determined the size and type of compressor, there is still a question whether to choose an oil-lubricated or oil-free air compressor?
Simply, your choice should be based on the application of compressed air. Do I need an oil-free compressor? The first step in choosing a compressor is to evaluate the needs of the equipment. In some cases, the consequences of oil contamination are too high, and in this case, it is necessary to choose an oil-free air compressor. However, most manufacturing, industrial plants and small workshops are suitable for using oil-lubricated compressors because the consequences of oil contamination in these applications are not as serious as the consequences of contamination in food production facilities.
The role of the oil in the air compressor is to lubricate, seal and cool the compressed air. If there is no exact need for oil-free compressed air, it is more economical to use an oil-lubricated compressor such as an oil-injected screw compressor. Oil-free compressors are much more expensive than oil-lubricated air compressors. Although there are trace amounts of oil in compressed air, these oils can be filtered out by using appropriate air filtration products. Using a coalescing filter can purify the dust contained in the compressed air to a size of 0.01 microns. If an activated carbon filter is added for further purification, the requirements of air cleanliness level 1 can be met.