Plastic Rubber Extruder Screw

Brief introduction： Screw and Barrel For Rubber Machine Basic parameters： Screw out diameter d：15mm≤d≤300mm Screw length L：L≤10000mm Nitriding hardness：HV≥900 After grinding 0.20mm, HRC ≥760 (38CrMoALA); Nitrided brittleness：≤2 level Surface finish Ra：Ra0.4µm Straightness：0.015mm Thickness of bimetallic layer：1.5-2.0mm Hardness of bimetallic layer：HRC56-60 Thickness of chrome plating layer: 0.03-0.05mm Scope of application： Tires, shoe materials, wires and cables, pipes, seals, etc. Composition and process：