screw barrel 38crmoala for extruder

screw and barrel for extruder. key words: plastic extruder screw and barrel, plastic extrusion machinery screw, screw barrel, screw cylinder, plastic extruder screw barrel, plastic screw barrel, screw barrel for plastic extruder, screw and barrel for plastic extrusion machine, screw barrel for plastic extrusion machinery, single screw barrel Ruian Yumin machine screw co.,ltd is a factory specialized in making screw barrel, filter, mould and gearbox. These products are main parts of plastic machines and package machines. Founded in 1987, Yumin machine screw factory has worked in this field for 22 years and has become the main supplier of some famous plastic machine and package machine factories in Wenzhou area and other parts of China. With the advanced technology and efficient management, we have the confidence and ability to give the best product with excellent quality for our customers. Size: screw diameter:Φ20-Φ500mm Maximum screw length:10000mm Barrel inner bore diameter:Φ500mm Material: 38CrMoAlA 40CrMo 42CrMo high quality alloy steelTechnology: nitriding treatment, alloy coating spraying, heating treatment, screw fully hardening,Depth of nitrition layer: 0.5-0.8mm Nitriding treatment, surface hardness: HV≥900-1100Fragility of nitrition: less than grade 1Surface roughness: Ra 0.4umStreightness of screw: 0.015mUsed for granulation,PP, PE, PA, PC, ABS,AS etc We can manufacture various kinds of screw barrels according to the customer’s requirement