Becker's robustly designed rotary vane pumps use a positive displacement operating principle. An eccentrically mounted rotor with slots rotates in a cylindrical housing driven by a completely enclosed, fan-cooled motor. The precisely sliding vanes move in the slots, driven to the cylinder wall by centrifugal force. The separation between the vanes creates the individual working chambers.

Both our dry-running vane and oil-lubricated vane vacuum pumps are suitable for larger pressure differentials in vacuum applications. There are many factors to consider when choosing a pump technology, but the first question is always the vacuum level required for the process. Time at the desired vacuum level, potential contaminants, ambient conditions are just a few of the many factors that must be taken into account when choosing a technology.

Oil-free rotary vane vacuum pumps are suitable for larger pressure differentials in vacuum applications. Self-lubricating carbon-graphite composite vanes come into direct contact with the cylinder wall. This limits the vacuum level that can be achieved to 100 mbar absolute.