Screw & barrel

Single screw and barrel

  • Diameter: φ15-φ300mm
  • Length-diameter ratio: L/D 15-46:1
  • Nitriding layer: 0.5-0.8mm. Nitriding hardness: >950HV. Nitriding brittleness: <level 2. Linearity: 0.015mm/m. Surface roughness: Rao0.4/m

Twin screw and barrel

  • Parallel
    • Diameter: φ45-φ200mm
    • Length-diameter ratio: L/D 16-35:1
    • Nitriding layer: 0.5-0.8mm. Nitriding hardness: >950HV. Nitriding brittleness: <level 2.
  • Conical
    • Diameter: φ25mm / φ45-φ92mm / φ188mm
    • The screw compressor can be designed per different products and formulas.
    • Nitriding layer: 0.5-0.8mm. Nitriding hardness: >950HV. Nitriding brittleness: <level 2.

Bi-metallic screw and barrel

  • Alloy: stellite and colmonoy
  • Diameter: φ15-φ350mm
  • Surface roughness: Ra0.4mm. Barrel linearity: 0.015mm/m