Technique du vide poussé

Turbomolecular pump operating principle

 In molecular operation, the gas molecules of the vacuum system arrive at the pump intake. They are trapped between the rotating disks of the rotor and the stationary disks of the stator and carried to the exhaust of the pump.

 The turbomolecular pump in an installation

.At the turbomolecular pump exhaust, the gases are evacuated to the atmosphere by a primary pump.
Since the turbomolecular pump compression rate is set by the design, the turbomolecular pump
limit pressure is given by that of the primary pump used.