Description

SPECIFICATION

• The screw barrel size we make Screw diameter: 015mm – Ø250mm Screw length: 300mm-800mm Barrel out diameter: 040mm – 0400mm
• The screw barrel technical indexes Screw surface roughness: Ra0.4 Screw straightness: 0.015mm
• Nitride screw barrel
  Material: 38CrMoA1-A
  Nitride layer depth: 0.7mm
  Nitride layer hardness: HRC63-68
• Bimetallic screw barrel
  C-class bimetallic material: NPT1
  (Fe, Co, Ni, W, Cr.A1)
  Bimetallic layer: 2mm
  Bimetallic layer hardness: HRC58- 63
  B-Class bimetallic material : NPT2
  (Fe, Co, Ni, W, Cr, a1)
  All hard material import from Sweden
  Bimetallic layer hardness: HRC60