parallel twin screw and barrel for plastic extruder
parallel twin screw and barrel
Parallel Twin Screw Barrel specification:Φ45-Φ170 twin screw barrels are available
Material:   38CrMoAlA   
                 40CrMo   
                 42CrMo  
                 high quality alloy steel
Technology:  nitriding treatment,
                   alloy coating spraying,
                   heating treatment,
                   screw fully hardening,
Hardness of Cr coating layer: HRC55-72
Thickness of alloy layer: 2.5-4mm
Technology:alloy coating spraying, heating treatment, nitriding treatment, screw fully hardening,