Rotary claw compressors series DHSC are developed for industrial applications where oil free air drain needs. Claw compressors are characterized by contact free working, no sealing fluid inside the pumping chamber, air cooling, energy saving. They are available with capacity of 360 mc/h and final pressure up to 1.5 bar(g). The working principle is easy: two claw shaped contact free rotors rotate inside the body of pump and they suck air when they meet the inlet port. The reduction of volume between claws causes the compression of air and its discharging. Claw rotors are synchronized by gears. A centrifugal fan cools the body of pump. Contact free rotation of claw rotors causes reduction of wearing parts, reduction of maintenance and energy saving for compressors operation.