Busch COBRA series
The Busch COBRA NC series comprises highly efficient, dry screw vacuum pumps for industrial processes in which gases and vapours must be conveyed reliably and without contamination. The advanced asymmetric screw profile and the free gas discharge provide a high tolerance of liquids and particles.
- 58Models
- 2Series
- 70–7,385m³/h pumping speed at 50 Hz
- 1 × 10⁻³mbar lowest ultimate pressure
- 1.5–65kW rated motor power at 50 Hz
Product overview
Products of the Busch COBRA series
Use the filters on the left to narrow the models down by their key figures. Each row leads to the model with its technical data and variants.
COBRA Industry series 36 models
COBRA NS 0070 CPumping speed 70 m³/h 50 Hz85 m³/h 60 HzUltimate pressure 0.03 mbarRated motor power 4 kW 50 Hz4.4 kW 60 HzVariants 
COBRA NC 0100 BPumping speed 110 m³/h 50 Hz130 m³/h 60 HzUltimate pressure 0.05 mbarRated motor power 3.5 kW 50 Hz4.8 kW 60 HzVariants 4
COBRA NC 0100 B ECOTORQUEPumping speed 130 m³/h 50 Hz130 m³/h 60 HzUltimate pressure 0.05 mbarRated motor power 4.8 kW 50 Hz4.8 kW 60 HzVariants 
COBRA NS 0160 CPumping speed 135 m³/h 50 Hz170 m³/h 60 HzUltimate pressure 0.03 mbarRated motor power 5.5 kW 50 Hz6.6 kW 60 HzVariants 
COBRA NC 0200 BPumping speed 220 m³/h 50 Hz265 m³/h 60 HzUltimate pressure 0.05 mbarRated motor power 6 kW 50 Hz7.6 kW 60 HzVariants 4
COBRA NC 0200 B ECOTORQUEPumping speed 265 m³/h 50 Hz265 m³/h 60 HzUltimate pressure 0.05 mbarRated motor power 7.6 kW 50 Hz7.6 kW 60 HzVariants 
COBRA NC 0300 BPumping speed 320 m³/h 50 Hz385 m³/h 60 HzUltimate pressure 0.05 mbarRated motor power 7.5 kW 50 Hz9.5 kW 60 HzVariants 4
COBRA NC 0400 BPumping speed 350 m³/h 50 Hz420 m³/h 60 HzUltimate pressure 0.05 mbarRated motor power 7.5 kW 50 Hz9.5 kW 60 HzVariants 
COBRA NX 0450 APumping speed 350 m³/h 50 Hz420 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power 7.5 kW 50 Hz9.5 kW 60 HzVariants 
COBRA NC 0300 B ECOTORQUEPumping speed 385 m³/h 50 Hz385 m³/h 60 HzUltimate pressure 0.05 mbarRated motor power 9.5 kW 50 Hz9.5 kW 60 HzVariants 
COBRA NC 0400 B ECOTORQUEPumping speed 420 m³/h 50 Hz420 m³/h 60 HzUltimate pressure 0.05 mbarRated motor power 9.5 kW 50 Hz9.5 kW 60 HzVariants 
COBRA NX 0450 A ECOTORQUEPumping speed 420 m³/h 50 Hz420 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power 11 kW 50 Hz11 kW 60 HzVariants 
COBRA NC 0500 BPumping speed 490 m³/h 50 Hz490 m³/h 60 HzUltimate pressure 0.01 mbarRated motor power 9 kW 50 Hz9 kW 60 HzVariants 
COBRA NC 0630 C VRPumping speed 580 m³/h 50 Hz680 m³/h 60 HzUltimate pressure 25 mbarRated motor power 22 kW 50 Hz22 kW 60 HzVariants 
COBRA NS 0600 CPumping speed 600 m³/h 50 Hz600 m³/h 60 HzUltimate pressure 0.01 mbarRated motor power 15 kW 50 Hz15 kW 60 HzVariants 
COBRA NC 0630 CPumping speed 630 m³/h 50 Hz630 m³/h 60 HzUltimate pressure 0.01 mbarRated motor power 15 kW 50 Hz17 kW 60 HzVariants 
COBRA NC 0630 C ECOTORQUEPumping speed 630 m³/h 50 Hz630 m³/h 60 HzUltimate pressure 0.01 mbarRated motor power 17 kW 50 Hz17 kW 60 HzVariants 
COBRA DX 0650 A PLUSPumping speed 650 m³/h 50 Hz650 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power 15 kW 50 Hz15 kW 60 HzVariants 
COBRA NX 0650 APumping speed 650 m³/h 50 Hz650 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power 12.5 kW 50 Hz15 kW 60 HzVariants 
COBRA NX 0650 A ECOTORQUEPumping speed 650 m³/h 50 Hz650 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power 15 kW 50 Hz15 kW 60 HzVariants 
COBRA NF 0750 APumping speed 750 m³/h 50 Hz750 m³/h 60 HzUltimate pressure 0.05 mbarRated motor power 15 kW 50 Hz15 kW 60 HzVariants 
COBRA NC 1000 BPumping speed 840 m³/h 50 Hz1,000 m³/h 60 HzUltimate pressure 0.05 mbarRated motor power 22 kW 50 Hz25 kW 60 HzVariants 
COBRA DX 0950 A PLUSPumping speed 950 m³/h 50 Hz950 m³/h 60 HzUltimate pressure 0.01 mbarRated motor power 18.5 kW 50 Hz18.5 kW 60 HzVariants COBRA Semicon series 22 models
No model matches these filters.
COBRA Industry series 36 models
COBRA Semicon series 22 models
Models that Busch no longer lists in its current range can be found under Outdated COBRA models.
About the series
Features and benefits of the COBRA series
The series at a glance
The uniform temperature distribution and the high efficiency reduce the thermal load and ensure high corrosion resistance, a long service life and reliable operation.
The COBRA NC series is available in various application-specific versions and offers high efficiency, robustness, flexibility and low operating costs. Depending on the model, ATEX-certified variants are also available.
With the COBRA series, Busch offers a powerful range of dry-running screw vacuum pumps developed for high process reliability, clean operation and reliable performance. The contact-free screw technology allows oil-free vacuum generation and a low maintenance effort. Thanks to its robust design and efficient dry-running technology, the COBRA series is a durable and reliable solution for demanding industrial vacuum applications.
Dry and oil-free
The Busch COBRA series uses dry-running screw technology and allows completely oil-free vacuum generation. The conveyed medium therefore remains free of oil contamination.
High process reliability
The contact-free screw principle ensures reliable vacuum generation and is particularly suitable for demanding processes with high demands on cleanliness and operational reliability.
Robust and durable
The robust design is intended for continuous industrial operation. The contact-free screw rotors reduce mechanical wear and support a long service life.
Operating principle
The Busch COBRA series works according to the principle of dry-running screw vacuum technology. Two counter-rotating screw rotors move inside the pump housing without contact and continuously convey the gas drawn in through the compression stages. In the process, the gas is compressed step by step and then expelled through the outlet.
As the COBRA series operates dry and oil-free, the conveyed medium does not come into contact with oil or lubricants in the compression chamber. The technology thus allows clean, contamination-free vacuum generation and is particularly suitable for demanding industrial processes.
The robust design and the contact-free screw principle allow reliable, durable and low-maintenance operation. Depending on the series, the COBRA pumps are designed for different process conditions and applications and offer high operational reliability even in continuous use.
The COBRA series is suitable for numerous industrial applications that require dry, oil-free vacuum, high reliability, powerful vacuum generation and low maintenance effort.
The technology page shows the operating principle with an interactive drawing: Screw vacuum pumps.
Standard operating conditions and performance
- Ambient temperature: −20 to +40 °C, depending on model and version
- Designed for dry, oil-free industrial vacuum applications
Frequently asked questions
Questions about the Busch COBRA series
Which models does the Busch COBRA series comprise?
Which pumping speeds does the series cover?
What ultimate pressure do the models of the series reach?
How does the technology of the series work?
Does Ehrler & Beck supply spare parts and service for the Busch COBRA series?
Which model fits your process?
Tell us the gas to be conveyed, the working pressure and the flow rate you need – we will advise you on selection, spare parts and service.
