Specifications

1. Nitriding process,
2. Bimetallic layer of this single screw and barrel.
3. Good quality and best service.

Specifications of this single screw and barrel:

diameter: Φ15mm~ Φ250mm

length:300mm~8000mm

external diameter:Φ40mm~Φ400mm

L/D: 10~46

 

Technical indexes:

38CrMoALA, Nitriding hardness:HV850~1000, Nitriding depth:0.45~0.7mm, surface roughness:Ra0.4, screw straightness:0.015mm, Chromium plated hardness:>900HV, Chromium layer thickness:0.05-0.10mm, twin-alloy depth:0.8~2.0mm, twin-alloy hardness: 60~70

 

Product types:

almost all kinds of single-screw types can be made.

 

Scope of application:

PP, PE, PS, EVA, ABS, PVC, APC, PMMA pelletizing, foaming,sheet and plate extruder etc.