screw and barrel(PVC,PP,PE,ABS screw barrel) for plastic extruder machinery

We can manufacture all types of screws and barrels according to clients' requirement. screw and barrel(PVC,PP,PE,ABS screw barrel) for plastic extruder machinery Size: screw diameter:Φ20-Φ500mm Maximum screw length:10000mm Barrel inner bore diameter:Φ500mm Technology: nitriding treatment, alloy coating spraying, heating treatment, screw fully hardening,Depth of nitrition layer: 0.5-0.8mmNitriding treatment, surface hardness: HV≥900-1000Fragility of nitrition: less than grade 1Surface roughness: Ra 0.4umStreightness of screw: 0.015mmSurface of hardness of nitrated Cr coating layer: ≥950HVHardness of Cr coating layer: HRC55-62Thickness of alloy plating: 0.03-0.08mmDepth of alloy layer:2mmUsed for granulation,PP, PE, PA, PC, ABS,AS etc

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