twin conical screw barrel

Depth of Nitrated Layer: 0.5-0.8mm
Hardness of nitration: 900-1020Hv
Fragility of nitration: Less than grade 1
Surface roughness: Ra 0.4um
Hardness of Cr-coating Layer: ≥ 950Hv
Thickness of Cr-coated Layer: 0.03-0.08mm
Hardness of Bimetallic Layer: HRC55-72 Depth of Bimetallic Layer: >2mm

We supply various types of screw barrel, if you have any inquiry, do not hesitate to inform us.