Description
Oil-free air compressors either have no mechanical contact inside the compression chamber or use alternate materials to protect the mechanism without lubrication. Most oil-free compressors utilize other materials like water or a Teflon coating to keep the mechanism running smoothly.
Oil-free rotary screw compressor: External gears synchronize the position of the counter-rotating screw elements, and, because the rotors do not come in contact and create friction, no lubrication is needed within the compression chamber.
