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COBRA Industry

Dry screw vacuum pumps

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COBRA Industry dry screw vacuum pumps are ideally suited for industrial applications which require reliable and contaminant-free extraction of gases and vapors.

The operating principle of COBRA Industry is based on our state-of-the-art screw technology. With their patented self-balancing screws, they set new standards in terms of efficiency.

COBRA vacuum pumps operate efficiently throughout their vacuum range and deliver constantly high pumping speeds.

COBRA Industry vacuum pumps are oil- and contact-free.

Particle-laden media can be evacuated without any problems. Furthermore, maintenance is reduced to a minimum.

Optimum corrosion resistance is ensured by an even temperature distribution preventing condensation.

Operating principle

Inside COBRA Industry dry screw vacuum pumps, two screw rotors rotate in opposite directions. The pumped medium is trapped between the cylinder and the screw chambers. There, it is compressed, and transported to the outlet. During this process, the screw rotors do not come in contact with each other or the cylinder.

Discover our COBRA Industry series

  • cobra_nc_0200_b

    COBRA NC

    The flexible solution for industrial vacuum applications

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  • cobra_ns_0600_c_1

    COBRA NS

    Leak-tight vacuum generation for demanding processes

    Learn more
  • cobra_nx_0950_a_vsd

    COBRA NX

    The all-around solution for industrial vacuum applications

    Learn more

COBRA NC

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The flexible solution for industrial vacuum applications

  • Advanced screw design
  • Dry and contact-free operating principle
  • High vapor and particle tolerance, self-draining
  • Efficient indirect water cooling
  • Air cooling and various sealing and coating configurations available
  • ATEX-certified versions available

Video: How COBRA NC vacuum pumps work
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Benefits of the COBRA NC series
COBRA NC are high-performance dry screw vacuum pumps. They are perfectly suited for demanding applications with maximum flexibility and modularity for process changes. COBRA NC are in use wherever gases and vapors need to be pumped reliably.

The patented self balancing screw design ensures lowest vibration levels and quiet operation.

The screws of COBRA NC vacuum pumps are manufactured from a single-piece casting avoiding any gaps. This makes an ingress of process fluids or particles impossible. Thus, corrosion and deposition are prevented.

COBRA NC series vacuum pumps use efficient indirect water cooling. This results in an even temperature distribution throughout the pump body. Moreover, thermal stability is ensured throughout the process.

The COBRA NC series comprises a range of application-specific versions. ATEX-certified versions for use in explosion-hazard environments are also available.

All COBRA NC products
  • COBRA NC 0100–0300 B

    COBRA NC 0100–0300 B

    Ultimate pressure:
    ≤ 0.0075 TORR
    Nominal pumping speed:

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  • COBRA NC 0400–1000 B/C

    COBRA NC 0400–1000 B/C

    Ultimate pressure:
    ≤ 0.0075 TORR
    Nominal pumping speed:

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  • COBRA NC 0600 C

    COBRA NC 0600 C

    Ultimate pressure:
    ≤ 0.0075 TORR
    Nominal pumping speed:

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  • COBRA NC 0630–2000 B/C VR

    COBRA NC 0630–2000 B/C VR

    Ultimate pressure:
    < 20 TORR
    Nominal pumping speed:

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  • COBRA NC 2500 B

    COBRA NC 2500 B

    Ultimate pressure:
    ≤ 0.75 TORR
    Nominal pumping speed:

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COBRA NX

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The all-around solution for industrial vacuum applications

  • Advanced screw design
  • Dry and contact-free operating principle
  • High vapor and particle tolerance, self-draining
  • Efficient water cooling
  • Optional air cooling
  • Anti-corrosion coating

Benefits of the COBRA NX series
COBRA NX are high-performance dry screw vacuum pumps for rough and medium vacuum applications. They are in use wherever gases and vapors need to be pumped reliably.

The patented self balancing screw design ensures lowest vibration levels and quiet operation.

The screws of COBRA NX vacuum pumps are manufactured from a single-piece casting avoiding any gaps. This makes an ingress of process fluids or particles impossible. Thus, corrosion and deposition are prevented.

COBRA NX series vacuum pumps use efficient water cooling. An even temperature distribution throughout the pump body is therefore maintained. Moreover, thermal stability during the process is ensured.

COBRA NX 0950 A PLUS intelligent vacuum pumps
COBRA PLUS series vacuum pumps are the new fully connected dry screw vacuum pumps from Busch.
PLUS technology combines proven Busch experience with cutting-edge features for Industry 4.0. Everything you need in one unit.

Learn more about intelligent vacuum pumps

Discover the COBRA NX 0950 A PLUS

All COBRA NX products
  • COBRA NX 0450/0650 A

    COBRA NX 0450/0650 A

    Ultimate pressure:
    ≤ 0.75 TORR
    Nominal pumping speed:
    min. 247 ACFM max. 383 ACFM

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  • COBRA NX 0950 A

    COBRA NX 0950 A

    Ultimate pressure:
    ≤ 0.75 TORR
    Nominal pumping speed:
    min. 247 ACFM max. 383 ACFM

    Learn more
  • COBRA NX 0950 A PLUS

    COBRA NX 0950 A PLUS

    Ultimate pressure:
    ≤ 0.75 TORR
    Nominal pumping speed:
    min. 247 ACFM max. 383 ACFM

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COBRA NS

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Leak-tight vacuum generation for demanding processes

  • Advanced screw design
  • Dry and contact-free operating principle
  • High vapor and particle tolerance, self-draining
  • Leak-tightness
  • Extended service intervals
  • Efficient indirect water cooling
  • Quiet

Benefits of the COBRA NS series
COBRA NS is a series of high-performance dry screw vacuum pumps for demanding applications. They are in use wherever gases and vapors need to be pumped reliably, such as coating applications, helium pumping or fluorination.

The integrated motor makes this vacuum pump series leak-tight with a leakage rate of < 5.0 · 10-5 mbar · l/s.

The bearings of COBRA NS vacuum pumps are lubricated with Busch PFPE oil. Therefore, service intervals are extended to a maximum.

The screws of COBRA NS vacuum pumps are manufactured from a single-piece casting avoiding any gaps. This makes an ingress of process fluids or particles impossible. Thus, corrosion and deposition are prevented. Optimum corrosion resistance is furthermore ensured thanks to temperature control and special coatings on the screws.

COBRA NS series vacuum pumps use efficient indirect water cooling. An even temperature distribution throughout the pump body is therefore maintained. Moreover, thermal stability during the process is ensured.

All COBRA NS products
  • COBRA NS 0070–0600 C

    COBRA NS 0070–0600 C

    Ultimate pressure:
    min. 0.0225 TORR max. 0.0075 TORR
    Nominal pumping speed:
    min. 50.0 ACFM max. 353.1 ACFM

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