What is the difference between oil free and oil lubricated air compressor?
All reciprocating compressors have a series of pistons that pump up and down inside their individual cylinders to compress the air to a higher pressure. This rubbing creates friction, which creates heat. In order to conserve the life of the pump, you need some type of protection. Some pumps are lubricated with oil and some have a Teflon-type lining in the cylinder. Oil free compressors are adequate for lighter use applications., however even though they are considered low-maintenance, they tend to wear much quicker due to more heat build-up and repair costs could be extensive. Oil lubricated compressors have the advantage of keeping the pump running cooler and lasting.
