The Busch MM Series dry vacuum pump is a compact version of the Busch Mink pressure or vacuum pump. It is designed for applications where dust particles may be present. Vacuum is provided by two noncontacting, claw-type rotors in an oil-free chamber. It is single stage and reaches an end vacuum of 37.5 torr. Because of the non-contacting design, there is no wear in the pumping chamber, which results in low maintenance. The high volumetric efficiency and no friction-pumping chamber create significant savings in electrical power, and the low maintenance and savings in electricity result in low cost of ownership.