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  • COBRA NC 2500 B , Screw Vacuum Pump , Busch Vacuum Solutions


Dry screw vacuum pump

The Flexible Solution for Industrial Vacuum Applications

High performance

Advanced screw design, patented self-balancing screws, perfectly suited for steel degassing, space simulation or vacuum drying


Low cost of ownership, minimal maintenance, long service intervals, high uptime, efficient water cooling


Various sealing configurations and ATEX-certified versions available

Technical specifications

Markets & applications

Biogas handling
  • Upgrading - pressure swing adsorption
Electric power generation
  • Transformer drying
Food processing
  • Pasteurizing
  • Sterilizing
  • Heat treatment
  • Welding
  • Vacuum arc remelting (VAR)
  • Vacuum induction melting (VIM)
Oil and gas industry
  • Oil purification
  • Pipeline drying
  • Solvent extraction
Plastics processing
  • Dissolution
Steel degassing
  • Vacuum degassing as backing pump


  • Seal gas system
  • Dilution gas system
  • Adapter for ASME flanges
  • Exhaust silencer
  • Various sealing configurations
  • ATEX-certified versions available

Design options

  • ATEX - for use in explosion hazard areas.