To know what goes into and how a PE Foam roll is made, the diagram below explains in general how little plastic resins are made into foamed PE rolls.

  1. Plastic resin stored in hopper
  2. Fed into chamber to melt until molten

  1. Transfer to primary screw die of higher temperature
  2. High pressure gas, as foaming agent, injected to cause molten plastic to foam

  1. Transfer to secondary screw die of lower temperature
  2. Pressure difference causes plastic to extrude through a mould die
  3. Room temperature instantly cools and solidify expanding polyethylene plastic

  1. Guide poles cut and transfer extruded foam into rewinder

  1. Pre-determined length once reached is cut for subsequent roll