Oil-free air compressor is reciprocating piston type, single action, air or water cooled portable compressor. It is designed for applications where need clean and high quality compressed air. All pairs of frication of the compressors and boosters are non-lubricated; the discharged compressed air does not contain oil and oil vapor. This units are not only specially suitable for applications where need high quality compressed air, such as chemical, pharmacy, food, electronic instrument, traffic, telecommunication, light industry, textile, scientific research and so on, but also suitable for other applications which need common air resource as power.http://www.cangas-systems.com