screw and barrel for injection mold machine. it's a special design for injection, based on bimetallic material

screw and barrel for plastic injection molder machine/molding machine

 Size: screw diameter:Φ20-Φ500mm

      Maximum screw length:10000mm

      Barrel inner bore diameter:Φ500mm

Material:    38CrMoAlA   

                  high quality alloy steel

Technology: nitriding treatment,

                   alloy coating spraying,

                   heating treatment,

                   screw fully hardening,

specifications:

   30g-25000g screw

Depth of nitrition layer: 0.5-0.8mm

Nitriding treatment, surface hardness: HV≥900-1000

Fragility of nitrition: less than grade 1

Surface roughness: Ra 0.4um

Surface of hardness of nitrated Cr coating layer: ≥950HV

Thickness of Cr coationg layer: 0.03-0.08mm

Used for granulation,PP, PE, PA, PC, ABS,AS etc

We can manufacture various kinds of screw barrels according to the customer’s requirement