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R 5 RA 0400–0630 C

Oil-Lubricated Rotary Vane Vacuum Pumps

R 5 – proven and reliable. Over 3 million pumps in operation worldwide.

The R 5 RA 0400 - 0630 C belong to the Busch product family of proven R 5 rotary vane vacuum pumps. They are perfectly suited for vacuum systems with large volume flows. You will find more information on advantages, technology, accessories and spare parts, applications as well as a complete product overview on our R 5 RA series type page.

Technical Specifications

Rotary vane technology is synonymous with a robust, functional construction. R 5 rotary vane vacuum pumps are characterized by an optimum design and perfectly synchronized components and materials. The constantly high vacuum level in continuous operation is ensured by recirculating oil lubrication and state-of-the-art precision manufacturing. A sophisticated oil separator ensures efficient use of oil.


When fitted with a gas-ballast valve (optional), even large quantities of vapour can be extracted. A non-return valve in the inlet flange prevents the pumped medium from flowing back into the vacuum process after the vacuum pump is switched off. The R 5 RA 0400 – 0630 C are driven by a directly flange-mounted standard electric motor, with an efficiency class of IE3.

Dimensional Drawing R 5 RA 0400 - 0630 C
R 5 RA 0400 - 0630 C
Pumping speed

Air at 70 ºF. Tolerance: ± 10%

60 Hz
Pumping speed
Technical data RA 0630 C RA 0502 C RA 0400 C
Max. pumping speed 455 ACFM 375 ACFM 305 ACFM
Ultimate pressure 0.075 Torr 0.075 Torr 0.075 Torr
Nominal motor rating 25 HP 20 HP 15 HP
Nominal motor speed 1150 RPM 1150 RPM 1150 RPM
Power consumption at 75 Torr 20.0 HP 16.0 HP 13.4 HP
Power consumption at ultimate pressure 10.7 HP 8.5 HP 7.5 HP
Sound level (ISO 2151) 79 dB(A) 79 dB(A) 79 dB(A)
Oil capacity 16 Qts. 16 Qts. 14 Qts.
Approximate weight 1527 Lbs. 1285 Lbs. 1084 Lbs.
Dimensions (L x W x H) 69 1/4 x 41 1/2 x 28 1/2 inches* 65 x 40 x 28 1/2 inches 54 1/2 x 40 x 28 1/2 inches
Gas inlet / Gas outlet 3" NPT 3" NPT 3" NPT
* values may vary slightly due to different motor versions

Accessories and Spare Parts

Optimum Performance and Reliability

  • IEC (IE3) and NEMA motors
  • Multi-voltage, multi-frequency motors (IE3) for variable speed drive
  • Single or double gas-ballast valve, manual or solenoid operation
  • Various inlet filters
  • Various temperature and pressure gauges
  • Starter units
  • Oil mist separator
  • Energy recuperation kit with heat exchanger
  • Vacuum pump oils for all applications
Order now or get more information

R 5 RA 0400–0630 C

Oil-Lubricated Rotary Vane Vacuum Pumps

R 5 – proven and reliable. Over 3 million pumps in operation worldwide.

The R 5 RA 0400 - 0630 C belong to the Busch product family of proven R 5 rotary vane vacuum pumps. They are perfectly suited for vacuum systems with large volume flows. You will find more information on advantages, technology, accessories and spare parts, applications as well as a complete product overview on our R 5 RA series type page.

Technical Specifications

Rotary vane technology is synonymous with a robust, functional construction. R 5 rotary vane vacuum pumps are characterized by an optimum design and perfectly synchronized components and materials. The constantly high vacuum level in continuous operation is ensured by recirculating oil lubrication and state-of-the-art precision manufacturing. A sophisticated oil separator ensures efficient use of oil.


When fitted with a gas-ballast valve (optional), even large quantities of vapour can be extracted. A non-return valve in the inlet flange prevents the pumped medium from flowing back into the vacuum process after the vacuum pump is switched off. The R 5 RA 0400 – 0630 C are driven by a directly flange-mounted standard electric motor, with an efficiency class of IE3.

Dimensional Drawing
R 5 RA 0400 - 0630 C
R 5 RA 0400 - 0630 C
Pumping speed

Air at 70 ºF. Tolerance: ± 10%

60 Hz
Pumping speed
Technical data RA 0630 C RA 0502 C RA 0400 C
Max. pumping speed 455 ACFM 375 ACFM 305 ACFM
Ultimate pressure 0.075 Torr 0.075 Torr 0.075 Torr
Nominal motor rating 25 HP 20 HP 15 HP
Nominal motor speed 1150 RPM 1150 RPM 1150 RPM
Power consumption at 75 Torr 20.0 HP 16.0 HP 13.4 HP
Power consumption at ultimate pressure 10.7 HP 8.5 HP 7.5 HP
Sound level (ISO 2151) 79 dB(A) 79 dB(A) 79 dB(A)
Oil capacity 16 Qts. 16 Qts. 14 Qts.
Approximate weight 1527 Lbs. 1285 Lbs. 1084 Lbs.
Dimensions (L x W x H) 69 1/4 x 41 1/2 x 28 1/2 inches* 65 x 40 x 28 1/2 inches 54 1/2 x 40 x 28 1/2 inches
Gas inlet / Gas outlet 3" NPT 3" NPT 3" NPT
* values may vary slightly due to different motor versions

Accessories and Spare Parts

Optimum Performance and Reliability

  • IEC (IE3) and NEMA motors
  • Multi-voltage, multi-frequency motors (IE3) for variable speed drive
  • Single or double gas-ballast valve, manual or solenoid operation
  • Various inlet filters
  • Various temperature and pressure gauges
  • Starter units
  • Oil mist separator
  • Energy recuperation kit with heat exchanger
  • Vacuum pump oils for all applications
Order now or get more information
or call us directly: +1 757 463 7800

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