Molecular vacuum pump is a kind of vacuum pump that uses a high-speed rotating rotor to transfer momentum to gas molecules, so that they can obtain a directional speed, which is compressed and driven to the exhaust port for the front stage.

　　Molecular Vacuum believes that such pumps can be divided into:

　　1. The gas molecules of the traction molecular pump collide with the high-speed moving rotor to obtain momentum and are driven to the outlet of the pump.

　　2. The turbomolecular pump of Molecular Vacuum Company realizes pumping by the cooperation of high-speed rotating blades and stationary stationary blades. Such pumps usually work in molecular flow regimes.

　　3. Compound molecular pump of Molecular Vacuum Company It is a compound molecular vacuum pump which is composed of two molecular pumps of turbo type and traction type in series.

　　Structural features of compound molecular vacuum pump:

　　The compound molecular vacuum pump is a series combination of a turbo molecular vacuum pump and a traction molecular vacuum pump, which integrates the advantages of the two pumps. Molecular vacuum pump has large pumping speed and high compression ratio in a wide pressure range, which greatly improves the outlet pressure of the pump.

　　In the design of the composite molecular vacuum pump, Molecular Vacuum Company suggested that the matching and connection relationship between the turbine stage and the traction stage must be handled well.