Extruder Single Feed Screw and Barrel for Injection Machine or Extruder Machine (QY-L003)

Features specifications: Single screw and barrel for injection machine or extruder machine
Instructions for single screw and barrel for injection machine or extruder machine:
1. We are a professional company specialized in manufacturing many types of screw, the barrel can be applied on all types of injection moulding machine, rubber hot-feeding extruder, rubber cold-feeding extruder, pin barrel cold feed extruder, plastic extruder with different specifications.
2. The models of screw include:
Variable pitch and variable depth, variable pitch and equal depth, variable depth and equal pitch, and equal depth and pitch.
Groove multi-die type, composite type, mixing type and separating type.

Material:
Alloy-steel of high-quality
1)38 CrMoAIA(JIS SACM645)
2)42CrMo(AISI4140)
3)9Cr18MOV
4)CW6Mo5Cr4V2
5)SKD61
Heat-treatment
Nitriding treatment
Electroplate hard-chrome
High-frequency quenching
Spraying corrosion wear-resisting dual metal layers
Vacuum quenching

Technical Parameter

Steel Material DIN 41CrA1Mo7 / AST M4140 / GB 38CrMoAlA
Deepness of Nitriding Layer 0.7 mm -0.9 mm
Hardness of Nitriding HV900 - HV1, 000
Nitriding Brittleness ≤ Grade 1

Chromate plating
Thickness 0.05 mm - 0.10 mm, hardness HV950

Special treatment
Carbide coating on screw flight and bimetallic barrel
Screw straight tolerance 0.015 mm/m
Surface roughness Ra 0.4μ M