COBRA NX – The All-Around Solution for Industrial Vacuum Applications
COBRA NX are high-performance and robust dry screw vacuum pumps for rough and medium vacuum applications. They are in use wherever gases and vapors need to be pumped reliably.
The proven, completely dry screw vacuum technology allows the COBRA NX to run without operating fluids in the compression chamber.
Vacuum pumps of the COBRA NX series are the most advanced screw vacuum pumps on the market today. They operate efficiently throughout their vacuum range and deliver constantly high pumping speeds.
COBRA NX dry screw vacuum pumps feature a specially developed screw profile and unimpeded gas discharge. Their design ensures an even heat distribution over the whole pump stage, which results in reduced thermal stress and increased service life.
The screws are manufactured from a single-piece casting without any gaps. This makes the ingress of process fluids or particles impossible and thereby prevents corrosion.
The compact dimensions of the COBRA NX permit installation in confined spaces.
An optional variable speed drive is also available for all models. This makes the COBRA NX ideally suited for applications where vacuum demand changes over time.
Your benefits at a glance:
- Advanced screw design
- Dry and contact-free operating principle
- Minimal maintenance
- Minimized operating costs
- High vapor and particle tolerance, self-draining
- Compact design
- Modular construction
Operating principle
Two screw rotors inside the cylinder of the COBRA NX 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 NX series vacuum pumps use efficient water cooling. This results in an even temperature distribution throughout the pump body which ensures thermal stability.
