The fundamental difference between oil-free and oil-lubricated air compressors lies in whether lubricating oil comes into contact with the compression chamber, which in turn affects compressed air quality, consumable costs, and maintenance requirements. This article explains the differences…
Oil-lubricated air compressor
To determine whether an air compressor is oil-lubricated or oil-free, focus on inspecting the nameplate, the oil circuit design, the oil level sight glass, the oil–air separator, and the maintenance consumables. An oil-free compressor is not entirely oil-free;…