Students from the University of Sussex visit Pentagon Plastics.

On Monday 2nd November Pentagon Plastics once again opened their doors to a selection of Product Design and research Engineering students from the University of Sussex.

This will now be the third year that we have hosted such an event in an effort to share key knowledge of both the injection moulding design and manufacturing process.

The twelve undergraduate students along with their tutors Mr Mark Jenkins and Mr Mike King arrived at our factory for 11am and the first two hours of their visit was filled with a presentation and Q&A session from our MD, Paul Edwards.

During the presentation the students were given an in-sight into our moulding business before attention was turned to design for injection moulding. This highlighted the problems that can occur when consideration to manufacture is not taken in to account at the initial product design stage and also covered the common causes of injection moulding issues such as; flash, distortion, weld lines and sink marks.


Attendees were then guided through the tooling process (a service that is provided here on site at Pentagon) and the areas for consideration when designing a mould tool to produce a part designed for manufacture by injection moulding.

Throughout the session many well thought out questions were asked by the students giving confidence that what they were learning in their time with us was relevant and applicable to their studies.

Following on from this our Operations Manager, Ron Fraser took time out to show the students around our Mould Shop and Post Moulding departments. During this time they were able to see inside the moulding machines and further understand how end components are produced.  Our staff were also on hand to answer any questions as the Students went around the factory as we show cased some elements of final finishing that were being undertaken.

The final leg of their tour of Pentagon was in to our on-site Toolroom where one of our toolmakers, Graham Davey was on hand to walk them through the tool manufacture and assembly process.


Last year we donated an obsolete mould tool to the University to assist their product design and engineering students. One of the attendees was a 3rd year Mechanical Engineering student who has been doing an individual plastic injection moulding project and as such studying the tool that we had donated.  He quickly emailed us regarding his visit saying;

‘’This has been very useful as I now have a better understanding on the process taken for a component to be formed.  I also have a better understanding on the different components which make up the Injection Mould tool.

I am sure today’s trip will give me an advantage to gain a higher grade in my project as you have kindly answered all the questions which I had.  You have also provided me with the mouldings that were created using the tool which we have received from your company which will be of great benefit to my studies.’’

Comments like this make us certain that stepping away from the day to day demands of the business for these initiatives is indeed time well spent! It is a pleasure to be able to enhance peoples learning and hopefully play a part in ‘moulding’ the product designers and engineers of the future………

To find out more about the business please take a look at our website