Basic information:
Single screw barrel:15-360 L/D=15-56
Material:38CrMoALA,SKD11,SKD61,SACM645,SCM440,Ni60
SurfaceTreatment: PTA, Gas nitrided ,Hard chrome plating, phorphor nickel alloy plating

Technical Details:
Nitriding treatment(120 Hours)
☆Depth of Nitrided Layer: 0.5-0.8 mm
☆Hardness of Nitrided Layer: 900-1020Hv (HRC56°-65°)
☆Fragility of Nitration:≤Two class
Hard Chrome Plating treatment:
☆Thickness of Hard Chrome Plating Layer: 0.05-0.10mm
☆Hardness of Hard Chrome Plating Layer: ≥950HV
Phorphor nickel alloy plating.treatment:
☆Bimetallic Barrel/Cylinder: Centrifugal Casting (Inlay Alloy)
☆Bimetallic Screw: Plasma Alloy Coating Spraying
☆Depth of Bimetallic Layer: >2mm
☆Hardness of Bimetallic Layer: HRC55°-72°
Tugsten carbide(Double-alloy level)
Level A - containing Tungsten of 40%
Level B - containing tungsten of 25%
Level C - containing tungsten of 9.5%

Other technical data:
☆Roughness of the surface:Ra0.4um
☆Linearity of the screw: ≤0.015mm
☆Linear axis limit: ≤0.02mm
☆Hardness after Hardening & Tempering: HB240-280

Material application:
☆General Plastics: ABS,PA,PC,PE,PET,PP,PS,EVA,PU,PVC,U-PVC,etc
☆PA + GF(Glass Fiber)
☆Flame-resistant Reinforced Plastics
☆Modified Engineering Plastics
☆All kinds of Mixed Recycled Material(in Scrap or Granule),etc

General terms of business:
☆Standard: ISO9001:2008
☆HS Code: 84779000
☆Means of transport:Ocean
☆Payment terms:FOBNingbo (negotiable)
☆Supply ability:300 sets per month
☆Packaging:film wrapped in wooden case
☆Delievey Time: 20 working upon receipt of 30% deposit
☆Production time is about 25 days after we receive the deposit and lead time will different according to the order quantity!
☆Warranty:common is1-2 years,bimetallic is much longer

Our screw＆barrel can ensure high performance and low energy consumption for extruder machine. Also we supply OEM service according to your requirements!

Pls don't hesitate,choosing us is your right choice！