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COBRA NS 0070 - 0600 C

  • Advanced Screw Design
  • Efficient:
    low energy consumption, minimal maintenance, minimized operating costs
  • Robust:
    high vapour and particle tolerance, anti-corrosion on internal components, inert lubricant
  • High performance:
    high pumping speed at all inlet pressures
  • Leak-tight design:
    no contamination of process gases, no leakage
  • Quiet:
    noise level < 68 dB(A)


The COBRA NS is a series of high-performance and robust dry screw vacuum pumps for demanding applications with maximum flexibility and modularity for process changes. These vacuum generators are in use wherever gases and vapours need to be pumped reliably. The proven, completely dry screw vacuum technology allows the COBRA NS to run without operating fluids in the compression chamber. In practice this means no contamination of the pumped medium, and no environmental emissions. In addition, no costs arise for the purchase, replacement and disposal of operating fluids. Maintenance tasks such as oil changes or filter replacement are no longer required or are reduced to a minimum.

Vacuum pumps of the COBRA NS series are robust, extremely reliable and highly efficient. They operate efficiently throughout their vacuum range, and deliver constantly high pumping speeds.

COBRA NS dry screw vacuum pumps feature dry compression, a specially developed screw profile, and unimpeded gas discharge. The result is a high degree of vapour and particle tolerance. Their design guarantees an even heat distribution over the whole pump stage, reducing thermal stress and increasing service life.

The integrated motor makes this vacuum pump series leak-tight. Optimum corrosion resistance is ensured thanks to temperature control and special coatings on the screws.


COBRA NS – clean and quiet vacuum for many demanding processes.

Would you like to know more?
Contact us directly (Busch United States):
+1 757 463 7800 Get in contact

Technical specifications
Two screw rotors inside the cylinder of the COBRA NS 0070 – 0600 C rotate in opposite directions. The pumped medium is trapped between the cylinder and screw chambers, compressed, and transported to the gas outlet. During the compression process the screw rotors do not come in contact with each other or the cylinder. Thus, no lubricants or operating fluids are required in the compression chamber. COBRA NS series vacuum pumps use efficient direct water cooling resulting in an even temperature distribution throughout the pump body, and guaranteeing thermal stability throughout the process. Bearings are lubricated with Busch PFPE oil which extends the service intervalls to a maximum. The leakage rate of the complete pump is guaranteed to < 5.0 · 10-5 mbar · l/s.


COBRA NS 0070 – 0600 C
COBRA NS 0070 – 0600 C
Pumping speed

Air at 20 °C. Tolerance: ± 10%

Pumping speed

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COBRA NS 0070 - 0600 C

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