Specification :

extruder screw barrel
screw barrel, bimetallic screw barrel, extruder barrel, plastic machine parts, extruder screw and barrel, high speed mixing screw barrel

Depth of Nitration Layer: 0.5-0.8mm
Hardness of Nitration: 950-1020Hv
Fragility of Nitration: Less than grade 1
Surface Roughness: Ra 0.4 um
Streightness of Screw: 0.015mm
Surface Hardness of Nitrated Cr coating Layer: > 950Hv
The Thickness of Cr Coating Layer: 0.03-0.08mm
Hardness of Alloy Plating: HRC55-62
Depth of Alloys Layer: 2.5mm-4mm

Introduction: Used for PE, PC, ABS etc, can increase more than 5 times of output.

We can all types of screws and barrels according to clients' requirement.