Gold Member Since 2009
Audited Supplier
SKY WIN Technology Co., Ltd.

Plastic Screw Barrel, Screw and Barrel, Screw Barrel manufacturer / supplier in China, offering Bimetallic Screw Barrel for WPC Machines, Plastic Pulverizer Machine, WPC/PVC Wall Panel Extrusion Line and so on.

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Supplier Homepage Product Plastic Extruder Parts Bimetallic Screw Barrel for WPC Machines

Bimetallic Screw Barrel for WPC Machines

FOB Price: Get Latest Price
Min. Order: 1 set
Payment Terms: L/C, T/T

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Basic Info
  • Technics: Bimetal
  • Base Material: 38grmoala
  • Depth of Nitration: 0.5-0.8mm
  • Fragility of Nitration: Less Than Grade One
  • Bimetallic Layer Thickness: 2-3mm
  • Material: 38grmoala 42grmo
  • Nitrided Hardness: 950-1020hv
  • Roughness of Surface: Ra 0.4um
  • Linearity of Screw: 0.015mm
  • Hardness of Bimetallic: HRC58-62
Product Description

NAME:  Plastic granules bimetallic screw barrel for Plastic extrusion machine
Product Description
Bimetallic Screw and Barrel Feature
The bimetallic barrel is with 2-3mm alloy layer of anti-abrasion and corrosion and high temperature cast on the inner wall, it will be prolong use life for product than nitriding, bimetallic have more abvious advantages when processing special plastic for project plastic,fluoride plastic,PPO etc.


1)38CrMoAlA(JIS SACM645)
2)Cr12MOV(JIS SKD-11) 
3)4Cr5MoSiV1(JIS SKD-61) 
4)42CrMo(AISI 4140)

Bimetallic Alloy Materials                           

1)Fe-based alloy 
2)Ni-based alloy/Deloro alloy 
3)Co-based alloy 
4)NiCo-based alloy 
5)Tungsten carbide/Wolfram carbide

Bimetallic Alloy level                      

Level A - containing Tungsten of 40%
Level B - containing tungsten of 25%
Level C - containing tungsten of 9.5%

Screw structure and compression  ratio can be designed according  to different products & different  clamping force requirement.
Technology parameter        
Depth of Nitrided Layer: 0.5-0.8 mm
Hardness of Nitrided Layer: 950-1020Hv
Thickness of Hard Chrome Plating Layer: 0.03-0.08mm  
Hardness of Hard Chrome Plating Layer: ≥950HV
Depth of Bimetallic Layer: 2-3mm
Hardness of Bimetallic Layer: HRC58°-62°
Hardness After Hardening & Tempering:HB260-290
Nitrided Brittleness:Less Than Grade 1
Surface Roughness:Ra 0.4um
Screw Straightness:0.015mm


1.Long lifetime,low energy consumption
2.Wonderful plasticizing
3. High wear resistance, anti- corrosion


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