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PUMA WY 0500 - 1250 C

  • Efficient:
    minimized operating costs
  • Reliable:
    leak-tight, robust construction made of GGG40 material, reliable under varying operating conditions, solid lobe design for high particle tolerance
  • High Performance:
    high pumping speed due to excellent volumetric efficiency
  • Easy Servicing:
    minimal maintenance
  • Compact Design


Due to their high pumping speed and ultimate pressure, Puma WY vacuum boosters increase the performance of vacuum pumps. Available in various sizes, Puma WY vacuum boosters can be designed to perfectly suit all medium and high vacuum applications in which the performance of the backing pump needs to be significantly increased or optimally adapted to the process. The Puma WY 0500 – 1250 C are the three smaller vacuum boosters in this series.

Puma WY are the perfect vacuum boosters for all types of backing pumps. When using a combination of backing pump and vacuum booster, the pumping speed and ultimate pressure of a vacuum system can be increased by up to a factor of 10. As a result, these combinations can generate a suction performance which would otherwise only be possible with a large number of backing pumps.

Puma WY vacuum boosters are perfectly suited to pump aggressive or toxic gases. The directly flange-mounted water-cooled motor enables an absolute leak-tightness to the atmosphere.

Puma WY vacuum boosters can be controlled using a pressure switch that activates the vacuum booster of the backing pump if it has achieved the optimum pressure. Alternatively, the Puma WY vacuum boosters are also available in versions that are controlled by frequency converters.

Puma WY vacuum boosters can be flanged directly onto the backing pump or at any other position on the system thanks to our large and specially designed portfolio of adapters.


Puma – the economical performance optimizer.

Puma – the economical performance optimizer.

Want to know more?
Contact us directly (Busch Germany):
+49 (0)7622 681-0 Get in contact

Technical Specifications

Technical specifications
Within the housing of Puma WY vacuum boosters, two lobes rotate synchronously. Due to the special profile of the lobes and their precise manufacturing, they do not come in contact with each other or the housing. Thus, no lubricants or operating fluids are required in the process chamber. The two lobes are driven by a pair of gear wheels separated from the process chamber. Puma vacuum boosters are available with pressure switch. A frequency converter can also be used to adapt the performance of the vacuum booster to customer requirements. Puma WY vacuum boosters are driven by a directly flange-mounted water-cooled motor.

Dimensional Drawing PUMA WY 0700/1250 B
PUMA WY 0700/1250 B
Pumping speed

Air at 20 °C. Tolerance: ± 10%

50 Hz 60 Hz
Pumping speed
Technical data PUMA WY 0500 C PUMA WY 0700 C PUMA WY 1250 C
Nominal pumping speed 500 m³/h 700 m³/h 1250 m³/h
Pumping speed 415* m³/h 550 m³/h* 1080 m³/h**
Max. pressure differential 50 hPa (mbar) 50 hPa (mbar) 50 hPa (mbar)
Leakage rate < 1·10-6 mbar < 1·10-6 mbar < 1·10-6 mbar
Nominal motor rating 4.0 kW 4.0 kW 4.0 kW
Nominal motor speed 3000 min-1 3000 min-1 3000 min-1
Weight approx. 139 kg 140 kg 193 kg
Dimensions (L x W x H) 642 x 325 x 260 mm 692 x 325 x 260 mm 852 x 325 x 260 mm
Gas inlet / outlet DN 63 ISO / DN 63 ISO DN 100 ISO / DN 100 ISO DN 160 ISO / DN 160 ISO
* with COBRA NS 0160 as backing pump ** with COBRA NS 0600 as backing pump

Technical Specifications

Technical specifications
Within the housing of Puma WY vacuum boosters, two lobes rotate synchronously. Due to the special profile of the lobes and their precise manufacturing, they do not come in contact with each other or the housing. Thus, no lubricants or operating fluids are required in the process chamber. The two lobes are driven by a pair of gear wheels separated from the process chamber. Puma vacuum boosters are available with pressure switch. A frequency converter can also be used to adapt the performance of the vacuum booster to customer requirements. Puma WY vacuum boosters are driven by a directly flange-mounted water-cooled motor.

Dimensional Drawing
PUMA WY 0700/1250 B
PUMA WY 0700/1250 B
Pumping speed

Air at 20 °C. Tolerance: ± 10%

50 Hz
60 Hz
Pumping speed
Technical data PUMA WY 0500 C PUMA WY 0700 C PUMA WY 1250 C
Nominal pumping speed 500 m³/h 700 m³/h 1250 m³/h
Pumping speed 415* m³/h 550 m³/h* 1080 m³/h**
Max. pressure differential 50 hPa (mbar) 50 hPa (mbar) 50 hPa (mbar)
Leakage rate < 1·10-6 mbar < 1·10-6 mbar < 1·10-6 mbar
Nominal motor rating 4.0 kW 4.0 kW 4.0 kW
Nominal motor speed 3000 min-1 3000 min-1 3000 min-1
Weight approx. 139 kg 140 kg 193 kg
Dimensions (L x W x H) 642 x 325 x 260 mm 692 x 325 x 260 mm 852 x 325 x 260 mm
Gas inlet / outlet DN 63 ISO / DN 63 ISO DN 100 ISO / DN 100 ISO DN 160 ISO / DN 160 ISO
* with COBRA NS 0160 as backing pump ** with COBRA NS 0600 as backing pump

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PUMA WY 0500 - 1250 C

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