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Twin Parallel Screw & Barrel Set

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Twin Parallel Screw & Barrel Set
Features:

Parallel twin screw barrel is made for customers on OEM machines as well as end users for customers globally.
We manufacture a wide range of Twin Screw diameter ranging from 52mm to 110mm with output capacity ranging from 110 to 900 kg/hr.

  • Screw & Barrel Base Material: EN41B, D2, M2, H13, 17.4PH, AISI4340, AISI4140
  • Surface Treatment: Gas/Ion Nitriding, Vacuum Hardening, Chrome Plating, Through Harden, Bimetallic Alloy Coating
  • Nitriding Layer Depth: 0.5to 0.7mm
  • Nitriding Skin Hardness: 62 to 65 HRC
  • Bimetallic Coating Layer: 1.5to 2mm
  • Bimetallic Coating Hardness: 65to 68 HRC
  • Bimetallic Coating Alloy: Wc (Tungsten Carbide), Ni, B, Cr etc…
  • Certificate of base and coating material is given

Parallel twin is critical on quality, the clearance between screws and barrels are very important.

Application:
  • PVC Pipes
  • PVC Profiles
  • PVC Tube
  • Form & Sheet
  • Compounding
  • Master Batch
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    Twin parallel screw barrel is a critical component used in plastic extrusion machines. It consists of two screws counter rotate to each other inside a barrel, enabling efficient mixing, melting, and conveying of polymer materials. In metering zone of barrel or up to vent hole we will insert tool steel material sleeve due to its excellent wear and corrosion resistance with proper vacuum harden ensuring a longer lifespan. Twin parallel screw barrel is used in pvc pipe, profile, granulation, pelletizing etc. For a proper working of twin screw extruder, the precisely machined barrel has importance. Axis distance between the holes, parallelism, linearity and the diameters of the holes has high tolerances.