Our business: extrusion

The principle
Extrusion is a continuous mechanical process, which consists of transforming the raw material (in the form of polyethylene granules) into a bubble which, after cooling, becomes a sheath. Once cooled and transformed, this sheath will be used as a basis for the manufacture of film, covers, bags, etc.

Photographies : Collectif Shebam

Detailed process
  • The pellet mixture is fed into the screw of the extruder
  • The heated screw transforms the material into a melt
  • The "melt" is injected into the extrusion head and then through a die
  • At the exit of the die, a blowing system makes it inflate, and gives it the shape of a tubular sheath
  • The resulting sheath is then cooled and laid flat before being reeled.