Rotor Vane

INFO #01

A rotary vane vacuum pump in its simplest definition is a type of pump technology that enables the compression of air inside the pump chamber to create suction for the removal of air molecules from a vessel or area.
Rotary vane vacuum pump works on a positive-displacement pumping principle. The design consists of a rotor, which is mounted eccentrically inside a cylindrical housing or stator. Blades, mounted inside the rotor, move in and out due to centrifugal force following the internal surface of the housing.

INFO #02

Vacuum pump vanes are produced in two materials, either carbon or plastic.
Vacuum pump vanes made of carbon are used in dry-running, oil-less, vacuum pumps and compressors with continuous wear, since the vane itself is the lubricant. Therefore no liquid lubricant or oil is required.
The other type of vanes are made of plastic and are used with oil lubrication. The plastic vacuum pump vanes can withstand thermal and mechanical load, and its thermal dimensional change is almost irrelevant. Nevertheless, these vanes wear out over time and they need to be replaced at regular maintenance.