Barrier Screw And Barrel

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Barrier screw is used in cases when even optimally designed screw is not capable of completing the melting process. In such cases the extrudate will contain un-malted particle. This can be prevented by building a barrier or secondary flight in the channel. The barrier flight is undercut and permits the passage of only fully molten plastic. The design of the barrier screw ensures complete melting of polymers.

Barrier screw can be used with plain or grooved feed barrel. Different mixing and shear section can be added to screw design to improve mixing properties in screw according to polymer requirement. Barrier screw and barrel are used for higher production and high quality of final product.

APPLICATION

  • Tape stretching line
  • Coating & lamination plant
  • Multi-layer & monolayer blown film plant
  • Sheet plant
  • Monofilament plant
  • Injection moulding etc.

RANGE - 45 mm to 150 mm up to 5000 mm length in single piece.

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