New Busch rotary vane vacuum pumps for medium vacuum applications

One of the new Busch range of rotary vane vacuum pumps: the Zebra RH 0021 A

Busch has introduced a completely new range of rotary vane vacuum pumps for medium vacuum applications. Zebra rotary vane vacuum pumps are two-stage and oil lubricated, and can reach an ultimate pressure of 0,002 hPa (mbar). A total of five sizes are available, from 6 to 30 m³/h (50 Hz) and 7 to 36 m³/h (60 Hz).


The new Zebra range complements the proven R 5 rotary vane vacuum pump series, which in many industries is considered the standard for low vacuum applications. Busch introduced rotary vane vacuum pumps more than 50 years ago, and has been developing the technology continuously ever since. The introduction of the Zebra series is a further step into the future of vacuum technology. Zebra rotary vane vacuum pumps use the same working principle as R 5 vacuum pumps, but employ a second stage to reach considerably lower ultimate pressures. A sophisticated integrated oil separation system ensures clean and oil-free exhaust air. Zebra vacuum pumps have a selectable gas ballast valve fitted as standard equipment, permitting large quantities of vapour to be extracted. The motors of all sizes of Zebra vacuum pumps are fitted with IEC320 plugs, allowing simple mains connection with a standard cable. The inlet and outlet flanges of Zebra vacuum pumps are small, guaranteeing a rapid, airtight and secure seal to user networks and the external exhaust.

Applications for Zebra rotary vane vacuum pumps may be found wherever reliable medium vacuum supplies are required. These include mass spectrometers, electron microscopes, leak detectors, coating and freeze drying processes, and as a forepump for turbomolecular vacuum pumps.


July 2014




Turbo TM – the new pump series for high vacuum from Busch

The Turbo TM 1600 A is the medium size in the new series of turbomolecular vacuum pumps from Busch

Busch has now launched a new product line for the high-vacuum range: the Turbo TM turbomolecular vacuum pump.

Busch offers these new vacuum pumps in a total of three sizes, from 1080 to 2200 l/s. The Turbo TM series, which has been specifically developed for industrial high-vacuum applications, achieves an ultimate pressure of >1 x 10-10 hPa (mbar).

Designed for high pumping speeds and gas throughputs, the Turbo TM also offers full reliability for pumping light gases without operating fluids, thanks to the optimised compression. Not even high loads or unintentional gas break-ins impair the high pumping speed. The Turbo TM can be operated at any installation position. The compact rotor design is unmatched in its class and combines the highest possible suction performance with the smallest possible dimensions. The drive and control unit is fully integrated into the pump housing. Connections for sealing and flushing gases are provided as standard.

A special high-pressure stage enables a higher initial vacuum and therefore smaller backing pumps. The overall result of this is a more effective and more compact vacuum system for high vacuum generation. Busch always has the right backing pump whatever the application, with its rotary vane vacuum pumps from the R 5 and Zebra series and the Fossa scroll vacuum pumps. Turbo TM vacuum pumps are maintenance-free and the extremely hard-wearing ceramic bearings increase the life span to over 200,000 operating hours.

Busch has widened its portfolio in the high-vacuum range with the Turbo TM series and thus also offers ideal vacuum solutions for vacuum furnaces, surface treatment, coating machines and thin-film coating.


June 2014