Single screw & barrel for extruder

▌Brief Introduction:

We can manufacture screw barrel for applications such like: pipe extrusion line, blowing film line, granulation machine, food extrusion line, blowing molding machine, 3D printing machine etc.

We have a high effective type designing screw barrel for PE/PP pipe extrusion and PE film blowing extursion, the difference with normal type screw barrel is, this high effective type need to cooperate with suitable rotating speed, gearbox and motor power of machine, finally can help users reach a higher output and lower power consumption.

▌Specification:

Screw diameter: Φ15-Φ400mm

Aspect ratio: 3-46

▌Basic material:

38CrMoAlA (JIS SACM645)

42CrMo (AISI 4140)

SKD61 (4Cr5MoSiV1)

▌Basic Technics:

Tempering treatment

Nitriding treatment

Medium/High frequency quenching

Vacuum quenching

▌Optional additional Technics:

Bimetallic welding / Bimetallic centrifugal casting

Chrome plating

▌Technical Parameter:

Hardness after tempering: HB260-320
Nitriding hardness: 900-1050HV
Nitrided layer depth: 0.5-0.8mm
Nitrided brittleness: Less than grade 2
Surface roughness: Ra0.4
Screw straightness: 0.015mm

Double bimetallic layer depth: 3mm

Chromium layer thickness: 0.03-0.1mm