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.
Screw & Barrel Ranges for Injection Moulding Machines
| Screw Diameter | 25mm -150mm |
|---|---|
| Screw Length | L/D ratio 15 – 46 |
Screw Technical Specifications
| Steel Material | DIN 41CrA1Mo7 / AST M4140 / GB 38CrMoAlA , 4Cr5MoSiVl |
|---|---|
| Heat Treatment | Tempered 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 tolerance | 0.015 mm/m |
| Surface roughness | Ra 0.4μm |