Piston type vacuum pumps and compressors are being used where oil-free air is crucial. The oil free character of the pump is usually a guaranty of zero-maintenance costs. The pumps can be found in capacities of Piston Vacuum Pump optimum 6 m3/hr and they are capable to reach a vacuum of 10 mbar(a). Used because a compressor they reach a pressure of 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 substance and textile industry.