Screws & Barrels for Film Blowing Machine
Professional Bimetallic Screw Barrel & Plastic Machinery Parts Manufacturer
Product Description:
Our screws and barrels are specially designed for film blowing machines, suitable for HDPE, LDPE, LLDPE, PP and other plastic film materials. With optimized structure and high-precision machining, they provide stable plasticizing, uniform extrusion and consistent film thickness.
Specification:
Screw diameter:Ø15-Ø300
Aspect ratio:15-46
Product type:
For different plastic products screw can be used: ordinary type, pin type, barrier type, separation type, exhaust type and so on.
Base material:
1)38CrMoAlA(JIS SACM645)
2)42CrMo(AISI 4140)
Process:
Heat treatment
Nitriding treatment
Technical Parameters:
Nitriding depth: 0.50mm-0.80mm
Nitriding hardness: 900-1000HV
Nitriding: <= Level 1
Surface roughness: Ra 0.4
Screw straightness: 0.015mm
The hardness of the surface after chrome plating:≥950HV
Chromium layer thickness: 0.025~0.085mm
Double alloy depth: 3mm
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Key Features
Optimized screw structure for stable feeding and perfect plasticizing
High wear resistance and corrosion resistance for long service life
High machining accuracy ensures good concentricity and smooth running
Uniform plasticizing and stable output for high-quality film
Suitable for high-speed film blowing production lines
Available in nitrided and bimetallic materials for different working conditions
Functions & Advantages
Ensure stable melting and plasticizing of plastic raw materials
Reduce film defects such as fish eyes, black spots and thickness variation
Improve film transparency, flatness and tensile strength
Increase output and reduce energy consumption
Extend service life and lower maintenance cost
Compatible with various brands of film blowing machines
Application product:
 |  |  |  |  |  |
| Blow moulding | Blow Film Extrusion | Cable Industries | Food Industries | Plastic granules | PVC profile |
