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Parallel twin screw

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Parallel twin screw

Parallel twin screw

  • Specifications:
     
    Screw diameter: Φ 45mm - Φ 200mm
     
    Aspect ratio: 16-35
     
    Screw compression ratio can be designed according to different products and different formulations
     
     
     
    Substrate material:
     
    1)38CrMoAlA(JIS SACM645)
     
    2)42CrMo(AISI 4140)
     
    3)4Cr5MoSi V1 (JIS SKD-61)
     
     
     
    Treatment process:
     
    heat treatment
     
    Nitriding treatment
     
     
     
    Technical parameters:
     
    Nitriding depth: 0.50mm-0.80mm
     
    Nitriding hardness: 900-1000hv
     
    Nitriding brittleness: < = grade 1
     
    Surface roughness: RA 0.4
     
    Screw straightness: 0.015mm
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