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Oil-lubricated two-stage vacuum pumps

High Vacuum Pumps: For Extremely Low Pressure Applications

High vacuum pumps are used in situations where very low absolute final pressure is required. They are capable of evacuating closed vessels and are suitable for long-term operation under vacuum, without atmospheric pressure. Special smoke cleaners are available to ensure their exhaust stays clean.

The operating principle of high vacuum pumps is similar to lubricated rotary vane vacuum pumps, but with an important difference: the stator of high vacuum pumps is immersed in lubricating oil to prevent air leaks. As a result, significantly higher pressures can be achieved than with other types of vane pumps. In addition, a ballast device is used to prevent condensation of water vapors.

High vacuum pumps can consist of a single rotor-stator assembly (single-stage) or two rotor-stator assemblies connected in series. In the case of a double stage, the outlet of the first group is connected to the intake of the second group

Main use sectors

  • Refrigeration and Air Conditioning: For creating vacuum in refrigeration and air conditioning systems to ensure optimum performance.
  • Analytical: In laboratory applications where precise and stable vacuum environments are essential for analytical processes.
  • Metallurgy: In the production of high-quality metals and alloys, where vacuum is required for specific manufacturing processes.
  • Chemistry: In chemical processes and laboratory experiments where vacuum is essential for reaction control and product purity.

Choose our high vacuum pumps for reliable performance and precise control in even the most demanding environments.


Rated capacity: 1.8 – 2m3/h/ 1.2 CFM

RC 4M / RC 4D

Rated capacity: 4 – 4.6m3/h/ 2.7 CFM

RC 8M / RC 8D

Rated capacity: 8 – 9.5m3/h/ 5.6 CFM

RC 50M

Rated capacity: 50 – 60 m³/h / 35.3 CFM


Rated capacity: 5.6 – 17m3/h/ 3.8 – 10 CFM

DC 4D / DC 8D / DC 16D

Rated capacity: 25 – 29m3/h


Rated capacity: 17 – 21m3/h/ 10 CFM