Instructions for twin screw single screw plastic extruder screw and barrel :

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