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Busch vacuum pumps and vacuum pump packages are marketed by Ober-Read & Associates.
Busch LLC Vacuum Pumps & Systems

R 5 Series

The modular, simply designed Busch R 5 series, rotary vane vacuum pumps are single stage, air-cooled, and direct driven. These oil-recirculating pumps are used in a variety of industries such as packaging, food processing, injection molding, thermoforming, printed circuit board testing, and hospitals, to mention a few.

Displacements range from 3 to 1130 CFM. Three models are available: The RC for applications to 15 torr (29.3"Hg); the RB for applications to 2 torr (29.9"Hg); and the RA for applications to 0.5 torr (29.9"Hg).


The COBRA single stage, direct driven, dry vacuum pumps, with their unique rotary screws, are designed for difficult applications in the pharmaceutical and chemical processing industries. They require no intercoolers and offer greater efficiency and easier maintenance than other types of vacuum pumps.

COBRA NC pumps provide pressure down to .0075 torr, and nominal capacities to 371 ACFM. COBRA NC pumps are available as direct cooled or with closed loop radiator cooling.  The COBRA NC is available with labyrinth or mechanical seals.


The Huckepack Mark 4 vacuum pump is the latest evolution of the Busch two-stage, Once-Through-Sealing rotary vane design.  The Mark 4 design allows engineers the flexibility and performance they need for their particular process.

The Mark 4 is available in water-cooled (single pass) or radiator-cooled versions. It reaches an end vacuum of 0.5 torr (29.9" Hg), and comes in four sizes, from 113 CFM to 444 CFM displacement. For higher capacities and lower end pressures, blower/pump systems are available.


The Busch Mink is a rotary claw-type, positive displacement, dry pump designed for either pressure or vacuum applications. It is available as a single or two-stage vacuum pump. The dry, non-contacting design makes the Mink ideal for pneumatic conveying, printing, soil remediation, and any application where dust particles may be present.

The Mink pressure models have a maximum pressure of 29.4 psig and displacements to 376 CFM.  The Mink vacuum models have an end vacuum range of 23.4" Hg to 29.3" Hg, depending on the model, and have displacements to 376 CFM.


The Busch Merlin is a rotary claw-type, positive displacement, combination vacuum and pressure pump. The Merlin pump is ideal for the printing industry, and is especially designed to serve the demanding needs of sheet-fed presses.


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