Screw and Barrel for The Plastic Extrusion Machines
Product Description
Extruder screw and barrel for plastic extruder
Material: 38CrMoAIA 40CrMo 42CrMo high quality alloy steel
Technology: Nitriding treatment, alloy coating spraying, heating treating, screw fully hardening.
Depth of nitrition layer: 0.5-0.8mm
Nitriding treatment surface hardness: HV>=900-1000
Fragility of nitrition: Less and grade 1
Surface roughness: Ra 0.4um
Streightness of screw: 0.015mm
Surface of hardness of nitrated Cr Coating layer: >=950HV
Hardness of Cr coating layer: HRC55-62
Thickness of alloy plating: 0.03-0.08mm
Depth of alloy layer: 2mm
We could manufacture various kinds of screw barrels according o the customer’s requirement.
Screw and Barrel for The Plastic Extrusion Machines offered by Ruian Yumin Machine Screw Co. Ltd.