Screws and Barrels for Injection Moulding Presses

Screws and Barrels for Injection Moulding Machines

Harden Industries supply bi-metallic barrel, feed screw, tip assembly, barrel adapter for injection moulding machines. Focusing on good workmanship and reliable quality, we carefully choose the design (tips and mixing heads) to match a very broad range of applications. Chrome coating of screws and bimetallic barrels are available.

injection molding

Screw & Barrel Ranges for Injection Moulding Machines

Screw Diameter25mm -150mm
 Screw LengthL/D ratio 15 – 46

Screw Technical Specifications

Steel MaterialDIN 41CrA1Mo7 / AST M4140 / GB 38CrMoAlA , 4Cr5MoSiVl
Heat TreatmentTempered and nitride, nitride depth: 0.5 mm – 0.7
    Surface hardness:HV900 – HV1, 000
    Chromate plating:Thickness 0.05 mm – 0.10 mm, hardness HV950
    Special treatment:Bimetallic barrel
Screw straight tolerance0.015 mm/m
Surface roughnessRa 0.4μm