Screw vacuum pumps

Becker screw vacuum pumps, designed for coarse vacuum, and screw compressors are dry positive displacement pumps. They have two rotors rotating in opposite directions as well as a pump housing enclosing these rotors. The use of a direct drive via an integrated frequency converter allows operation without a drive gear.

The rotors are designed with a regular wire-shaped profile and mesh with each other like gear wheels. When the rotors rotate, they exit in the direction of the machine and transport the medium from the suction side (inlet) to the pressure side (outlet). They rotate in opposite directions without touching each other or the housing.

The working chamber of the machines is 100% oil-free, making them relatively maintenance-free. The integrated speed control enables energy-optimized operation of the devices. Becker drives continuously adjust the volume flow to demand. It is high efficiency results in low energy consumption.