
Company Information
Ask for more detail from the seller
Contact SupplierGood day and your inquiry about our screw barrel.
1 year warrenty for screw barrel (no fee on your expense)
Technical Details
Nitriding Treatment
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Nitriding Treatment: 120 Hours, 5 whole days
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Depth of Nitrided Layer: 0.5-0.8 mm
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Hardness of Nitrided Layer: 900-1020Hv (HRC56°-65°)
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Nitriding Brittleness: Less than Grade 1
Surface Treatments
Hard Chrome PlatingCoating
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Thickness of Hard Chrome Plating Layer: 0.05-0.10mm
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Hardness of Hard Chrome Plating Layer: ≥950HV
Bimetallic BarrelCylinder: Centrifugal Casting (Inlay Alloy)
Bimetallic Screw: Plasma Alloy Coating Spraying
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Depth of Bimetallic Layer: >2mm
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Hardness of Bimetallic Layer: HRC55°-72°
Other Technical Details
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Hardness after Hardening & Tempering: HB240-280
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Screw Alignment Screw Straightness: 0.015mm
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Surface Roughness: Ra0.4
Plastics Used for Injection
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Raw Material: ABS,PA,PC,PE,PBT,PET,PP,PS,EVA,PU,Soft PVC,etc
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Engineering Plastics
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Glass Reinforced Plastics, like PA + 50%GF
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Bakelite Material, BMC,DMC
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Flame-resistant Reinforced Plastics
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Modified Engineering Plastics
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All kinds of Mixed Recycled Material(in Scrap or Granule),etc