The WS series of double-screw air compressors are a high quality air compressor product of Sullair designed and developed over a period of more than two years based on Sullair’s in-depth research of global market needs and competitors, result of essence of wisdoms of its excellent engineers in China, the U.S., France and Australia. The product offers good-looking appearance, compact structure, high efficiency, energy saving, low noise and other features. The overall enclosure structure, optimized pneumatic inlet and discharge designs, use of the U.S. OEM compressor air end and high efficiency NEMA motor as well as the electronic automatic displacement system and other high quality parts and components, with greater attention paid to user friendliness and noise reduction, offering of spacious application and maintenance rooms for the convenience in use and management of the many users have all gained it popularity and high praises among the customers.


  • 18-37kW

  • 25-50HP

  • 2.2 m3/min -6.8m3/min
  • 5-year warranty on compressor air end
  • 8000-hour sullube lubricant, with self-cleaning function
  • Flexible couplings
  • Large capacity fluid/air separation tank
  • Air inlet regulation valve, energy saving
  • Luxury computer controller
  • Sequence control, no other charges incurred
  • Nano-level intake filter
  • Centrifugal fan, low noise