The function and role of the blades (vacuum pump blades are a critical component located on the rotating part [rotor])

Gas Extraction: The rotation of the blades generates centrifugal and frictional forces, thereby drawing the gas into the vacuum pump. The shape and arrangement of the blades determine the flow and extraction efficiency of the gas.

Sealing and Compression: A sealing gap is formed between the blades and the pump housing, ensuring gas enters through the intake and is discharged through the blades. As the blades rotate, they continuously contact the pump housing, achieving gas compression and expulsion.

Load-bearing: The blades bear the inertia and centrifugal forces of the rotating components, as well as the forces from gas pressure. The design and material selection of the blades must be able to withstand these forces while maintaining stable operation.