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R 5 RB / RC 0021 C

The R 5 0021 C is the newest generation of the most successful rotary vane vacuum pump worldwide. With its improved ultimate pressure of 1 hPa (mbar), this vacuum pump impresses due to its compact design, variable pivoted inlet flange, proven rotary vane principle and its high quality standard.

Reliable operation
These pumps are direct-driven by a standard motor. The inlet flange with integrated check valve prevents air entry into the vacuum chamber when the pump is switched off.

Environmentally safe
Air-cooling, internal oil recirculation, integral oil separator for oil-free exhaust air, low vibration and noise levels allow this pump to be used in any environment.

Easy to service
Compact design, air-cooling and easy access allow quick and simple servicing with long service intervals. No preventative maintenance apart from routine oil changes is required.


  • Vacuum packaging
  • Food technology
  • Wood working
  • Pneumatic conveying
  • Transport and lifting systems
  • Plastics industry

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Technical specifications
These vacuum pumps work in accordance with the rotary vane principle. An eccentrically installed rotor rotates in the cylinder. The centrifugal force of the rotation pushes the vanes, which glide in slots in the rotor, towards the cylinder wall. The vanes separate the sickle-shaped space between rotor and cylinder into chambers. When the chambers are connected with the inlet channel, gas is sucked in, compressed by the next rotation and pushed into the oil separator. Differential pressure constantly causes oil to be passed into the compression chambers. The oil and medium are then discharged into the oil separator and there separated from the exhaust air by gravity and the exhaust filter. Oil collects on the bottom of the oil separator and is passed into the compression chamber again (oil circulation).

R 5 RB 0021 C
R 5 RB 0021 C
Pumping speed

Air at 70 ºF. Tolerance: ± 10%

60 Hz
Pumping speed
Technical data RB 0021 C RC 0021 C
Max. pumping speed ACFM 60 Hz 14.1
Ultimate pressure Torr 0.75
Nominal motor rating kW (HP) 60 Hz 0.9 (1.2) - 0.75 (1.0)
Nominal motor speed RPM 60 Hz 3600
Sound level (ISO 2151) dB(A) 60 Hz 66
Oil capacity Qts. 0.48
Approximate weight Lbs. 44
Dimensions (L x W x H) inches 17 1/4 x 9 3/16 x 8 1/4
Gas inlet NPT G ¾"


R 5 RB / RC 0021 C

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