Single screw barrel 1for various extruding machines 2 38CrMoA1A 3PTA, ion nitride,and more Specifications of this single screw and barrel: diameter: 15mm~ 250mm length:300mm~8000mm external diameter:40mm~400mm L/D: 10~46 Technical indexes: 38CrMoALA, Nitriding hardness:HV850~1000, Nitriding depth:0.5~0.8mm, surface roughness:Ra0.4um, screw straightness:0.015mm, Chromium plated hardness:>900HV, Chromium layer thickness:0.05-0.10mm, twin-alloy depth:0.8~2.0mm, twin-alloy hardness: 60~70 Product types: almost all kinds of extruder screw barrel types can be made. Scope of application: PP, PE, PS, EVA, ABS, PVC, APC, PMMA pelletizing, foaming,sheet and plate extruder etc.
