- Advanced Screw Design
low energy consumption, minimal maintenance, minimized operating costs
high vapor and particle tolerance, self-draining
high pumping speed at all inlet pressures
various sealing configurations, ATEX-certified version available
The COBRA NC 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 vapors need to be pumped reliably. The COBRA NC 2500 B has been specially designed for applications in the rough vacuum range, and is perfectly suited for steel degassing, space simulation or vacuum drying.
The proven, completely dry screw vacuum technology allows the COBRA NC 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 NC series are robust, extremely reliable and highly efficient – and the most advanced screw vacuum pumps on the market today. They operate efficiently throughout their vacuum range, and deliver constantly high pumping speeds.
COBRA NC dry screw vacuum pumps feature dry compression, a specially developed screw profile, and unimpeded gas discharge. The result is a high degree of vapor and particle tolerance. Their design ensures an even heat distribution over the whole pump stage, reducing thermal stress and increasing service life.
The screws are manufactured from a single-piece casting avoiding any gaps, making the ingress of process fluids or particles impossible, and thereby preventing corrosion.