Busch R5 KB 0040 D Vacuum pump

R5 KB 0020–0040 D/F
Oil-lubricated rotary vane vacuum pumps

Food processing
Meat fillers
Powder processing
Meat marinators

Money packaging
Blister packaging
Clipping machines
Cartoning machines
Tray loading systems
Chamber packaging machines table top

Plastics processing
SSP recycling
Vacuum bagging
Pneumatic conveying
Injection molding
Rasin transfer molding (RTM)

Oil-lubricated rotary vane vacuum pumps

With the invention of the R5 oil-lubricated rotary vane vacuum pump, Dr Karl Busch has revolutionized food packaging. And today, we are the market leader in vacuum packaging.

However, the R5 is not limited to this application but represents the industry standard for a wide range of applications. Every day, over 3 million R5 vacuum pumps are in operation around the globe.

Operating principle

R5 rotary vane technology is synonymous with a robust and functional construction. In a cylindrical housing, a rotor with three vanes is mounted eccentrically. Due to centrifugal force, these vanes slide out and form chambers between themselves and the housing.

The pumped medium is trapped inside these three chambers. During further rotation, their volume is constantly reduced. Thereby, the pumped medium is compressed and transported to the outlet.

R5 vacuum pumps operate with recirculating oil lubrication. A downstream oil separator segregates sealing oil and pumped medium for efficient reuse of oil.

A non-return valve prevents the pumped medium from flowing back into the process after the vacuum pump is switched off.

R5 KB 0020–0040 D/F
Oil-lubricated rotary vane vacuum pumps


Direct-drive construction, reduced height and weight, ideal for installation in vacuum packaging machines


Robust construction, highly durable vanes, proven rotary vane technology, long service life


Various design options available, easy adaption to individual customer requirements and processes

TECHNICAL DATA R5 KB 0020 D R5 KB 0025 F R5 KB 0040 D
Nominal pumping speed 20 m³/h 25 m³/h 40 m³/h
Ultimate pressure 2.0 hPa (mbar) 2.0 hPa (mbar) 2.0 hPa (mbar)
Nominal motor rating 0.75 kW 0.9 kW 1.5 kW
Nominal motor speed 3000 min⁻¹ 3000 min⁻¹ 3000 min⁻¹
Noise level (ISO 2151) 67 dB(A) 71 dB(A) 71 dB(A)
Oil capacity 0.45 l 0.45 l 0.8 l
Weight approx. 19 kg 20 kg 29 kg
Dimensions (L x W x H) 323 x 231 x 211 mm 347 x 250 x 229 mm 432 x 256 x 238 mm
Gas outlet G 1¼”
Gas inlet G ¾” G ¾” G 1¼”

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