Piston type vacuum pumps and compressors are being used where oil-free air is crucial. The oil free personality of the pump is a guaranty of low maintenance costs. The pumps can be found in capacities of 
maximum 6 m3/hr plus they are able to reach vacuum pressure of 10 mbar(a). Used because a compressor they reach a pressure of Piston Vacuum Pump china approx. 7 bar(g) optimum.
These pumps are becoming used for light commercial functions, medical industry, printing and device industry, plastic, food and packaging, electronic, chemical and textile industry.