Barrel series

Single Screw and Barrel:

Screw material and manufacturing range :
Screw material : 38CrMoAlA(JIS SACM645) , 42CrMo(JIS SCM440)SKD61
Screw diameter range : 12~350mm
Maximum length of the screw : 9000mm
Surface treatment : PTA , lon Nitride , heatment , gas Nitride , hard chrome plating , phosphor nickel alloy plating

Barrel material and manufacturing range :
Screw material : 38CrMoAlA(JIS SACM645) , 42CrMo(JIS SCM440)  SKD61
Screw diameter range : 12~350mm
Maximum length of the screw : 12000mm
Surface treatment : Centrifugal casting , medium frequency , gas   oxidation , Nitride , hard chrome plating , phosphor nickel alloy plating

Conical Twin Screw:

The main applications :
Including PVC pipe , PP/PVC/PE WPC extrusion , PVC skinning foaming plate , PVC profile , PVC/PP corrugated pipe , PVC floor leather products , PVC waterproof membrane .

The main technical data :
Material : 38 CrMoAlA ( JIS SACM645) 9 Cr18MoV
Heat treatment : Nitriding treatment , spraying coating Bimetallic alloy Depth of nitration layer : 0.5~0.8mm
Hardness of nitration : 900~1020HV
Fragility of nitration : less than grade one
Roughness of the surface : Ra0.4
Linearity of the screw : 0.015mm
The surface hard chromium plating hardness after Nitrogenation :> 950Hv
Chrome-plating layer thickness : 0.025~0.085mm

Counter-rotate Parallel Twin Screw:

The main application :
includes PVC pipe and profile extruder , PP PE sheet product
Material :38CrMoAlA(JIS SACM645) , 42CrMo(JIS SCM440), 9Cr18MoV CW6Mo5Cr4V2
Heat-treating : Nitriding treatment , electroplate hard-chrome finish , spray coating bimetallic-alloy

Alloy Series Screw:

The main technical data :
Base material of bimetallic barrel :  45# 40Cr
Bimetallic type : Centrifugal casting
Application: For Extrusion Machine and injection molding machine
Products range : inner diameter 12~350mm
Effective length: 12000mm
Nitriding layer thickness : 0.5mm~0.8mm
Nitriding layer hardness : HV960
Straightness : 0.015mm/m
Chrome coated layer :0.02mm~0.085mm
Suitable plastic material : PP PE ABS AS PS
Screw base material : SACM645 SCM440 38CrMoAlA