Exploring Plastics Extrusion

Upcoming course dates

Oct 2-3 2019 - £699.00

Select dates & register Enquire

Course duration: 2 days 

Shawbury Shropshire, UK


This course will take place over two days, commencing at 9.15am on the first day and finishing at 4.30pm on the second day.

Course participants will gain an appreciation of the whole extrusion process, enabling them to optimize their processes, troubleshoot and avoid problems.  

Very helpful and highly knowledgeable

Gerard Eaton (Hozelock Ltd)

Please note:   This course will concentrate on the single screw extrusion   process, both within the extruder and downstream. Areas such as compounding   (single and twin screw) rheology; pipe extrusion, film; sheet; cable and PVC   profiles will be addressed in short modules.

A very useful guide to how extrusion machines work.

Mike Baillon (Stretch Polytech)

Learning Outcomes:

As a result of attending this course, participants will be able to:

  • Understand the basic extrusion process
  • Recognise the different extrusion techniques
  • Identify the most common faults to be found in extrusion
  • Design improved laboratory (R&D) projects with a view to scaling up to production
  • Understand why different polymers perform differently during extrusion.
  • Make informed choices when purchasing equipment

Attendees will learn:

  • The Basic Extrusion Process - What are we aiming to achieve? 
  • The various elements of the extrusion process
  • The theory behind feeding, melting and pumping
  • Critical aspects of design, choice and purchase of equipment
  • The essential differences between single and twin screw extrusion
  • Important elements of mixing in theory and practice
  • How to scale up both single and twin screw extrusion processes
  • How different end products are produced
  • An approach to trouble shooting with solutions to common problems

Course Content

The Basic Extrusion Process

What are we trying to achieve?  Densification, Mixing, Compounding, Reinforcement, Reactive Processing, or the production of a particular shape.

Extrusion Theory

Feeding, Melting, and Pumping processes in single and twin screw machines, and the energy balance of the process.


Its influence on the extrusion process.

Extrusion Design

Aspects of design, choice and purchase of equipment.

Twin Screw Extrusion

Different types of twin screw, their uses and compounding optimisation


Various mixing techniques exist, add on mixing heads, barrier screws and modular kneading elements.


Sizing of a machine from laboratory trials, scale-up, and choice of equipment.


Compound, pipe, film, sheet, cable sheathing, profiles.

Trouble shooting

Fault finding, practical solutions to common problems, i.e. probable causes of surging, melt fracture, etc., difficulties encountered in handling rework

Materials, feeding systems,etc.

Practical Demonstration

Practical demonstrations will be used to illustrate aspects of the course.

Who Will Benefit?

This course will benefit:

  • Process/production engineers
  • Technical managers
  • Personnel involved in quality control
  • Customer/technical services
  • Those responsible for selling or purchasing extrusion equipment

The benefits you will gain are:

  • Better product quality
  • Improved efficiency of production
  • Quicker resolution of process problems
  • Wider understanding of extrusion processes
  • More informed choices when purchasing equipment
  • Improved communications with suppliers and customer companies.

Find out more about reducing energy consumption in plastics engineering at www.eurecipe.com.

Presenter Information

This course is presented by:

Jon Lea, B.Eng.