Bimetallic Barrel

A bimetallic barrel is made up of two metals or alloys. As the name suggests, in a bimetallic barrel, two metals are fixed together. A bimetallic barrel is used to increase the life of the entire screw and barrel. That is because a bimetallic barrel works better than a mono-metallic barrel. Bimetallic barrels are made in two metals - the base material and the coating material. That is why a bimetallic barrel lasts longer than a mono-metallic barrel. There are multiple applications of a bimetallic barrel. It can be used for corrosion formula, regrinding resin, calcium powder filling, additive fireproof materials, and additive plastic materials with less than 15% glass fiber. Special machines are adopted for hard-facing, with the alloy thickness over 1.5 mm, providing high surfacing bonding strength, dense textile & effectively improving the resistance of the barrel to abrasion, high temperature & corrosion. It helps extend the service life of the bimetallic barrel. The material that is used in a Bimetallic Barrel is EN41B with a coating of ni-based alloy. The available diameter sizes vary from 14mm to 200mm and the available length is upto 6 meters. The surface hardness achieved through the Gas Nitriding is 58-62 HRC.

  • Product name – Bimetallic Barrel
  • Material – EN41B + Coated (ni-based alloy)
  • Available size – Dia 14 – 200 mm, length upto 6m long
  • Surface hardness – 58-62 HRC
  • Process method – Gas Nitriding + PTA
Type HRC COMPOSITION OF ALLOY Application
SC, Fe-based, wear resistant 57-64 Fe+Ni+Cr+B

General resin & eng. plastics, containing no more than 25% of glass fiber (e.g: PE.PP.ABS.AS.PS.TPE.PC.PEI.PEEK. PPS.PAR)
SC1, Fe based, wear resistant 57-64 Fe+Ni+Cr+Co+B

General resin & eng. plastics, containing no more than 35% of glass fiber (e.g: PE.PP.ABS.AS.PS.TPE.PC.PEI.PEEK. PPS.PAR)
SC5, Ni-based, wear resistant & corrosion resistant 55-60 Ni+Cr+W+B

General resin & eng. plastics, containing no more than 50% of glass fiber (e.g: PE.PP.ABS.AS.PS.TPE.PC.PEI.PEEK. PPS.PAR)

Special eng. plastics(eg: PA.PBT.LCP), containing no more than 45% glass fiber
SC6, Ni based, high wear resistant & corrosion resistant 56-62 Ni+Cr+W+B

General resin & eng. plastics, containing no more than 60% of glass fiber (e.g: PE.PP.ABS.AS.PS.TPE.PC.PEI.PEEK. PPS.PAR), Electronic industry application, light guide plate, etc.

Special eng. plastics(eg: PA.PBT.LCP), containing no more than 60% glass fiber, Halogen free plastics
SC7, Co-based, high temperature, high speed, high pressure, wear resistant & corrosion resistant 52-58 Co+Cr+W+Ni+B

Special eng. plastics with iron powder, ceramic powder, magnetic powder & copper powder, not very sticky resin
Interested in Nitrided Screw, Bimetallic Screws, HVOF Coat Screw, Hardened Screw, Special Screw Manufacturer, Nitrided Barrel, Bimetallic Barrel, Special Barrel, Tie-Bar, Injection Head, RP Set, Nozzle, Conical Twin Screw & Barrel , Parallel Twin Screw & Barrel Manufacturing? Get Quote.

Production Process

  • Order & drawing confirm

  • Down Payment

  • Production

  • Hardening & Tempering

  • Inspection

  • Documents for clear customs

  • Packing & delivery

  • Balance

  • Inspection

  • Nitriding