Hello everybody,

After a few times away, EXApro team is back !

Here a quick presentation about the extrusion process.

Extrusion is applicable to several materials: metal, rubber, composite materials… In this article, we will focus mainly on thermoplastics extrusion.

But what is extrusion process exactly?

It is a process in which granule materials are pressured to shape them as long components.

This is a method of processing synthetic organic materials into granular state which allows  the pressurized material to transform it into a long profile.

We can thus obtain through the extrusion of plastic profiles for doors, windows, pipes, sheets, wire, etc.


There are three different types of extrusion:

Film extrusion: used to make plastic films
Blowing extrusion: used to manufacture bottles
Inflating extrusion: used to produce plastic bags

Here is an example of the main parts of an extrusion line:

Read also:  Ferromatik Milacron on Exapro!

After receiving materials the extruder mixes and heats it, raises the temperature to push in toward the element which is going to shape the final products while cooling it down.

If you are looking for used extruders, you can visit the market place for used machines Exapro to browse all our offers.

Leave a comment