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Plastic Injection Moulding

What is plastic 
injection moulding?

Plastic injection moulding is a cost-effective manufacturing process that allows for the quick production of high volumes of identical plastic parts and mouldings. This involves the injection of molten plastic into either one or multiple cavities within a metal mould, the plastic cools rapidly and is ejected to form a solid finished part.

There are many different types of injection moulding, including more complicated techniques such as overmoulding (combining two moulded components), insert moulding (moulding two components on top of each other at the same time) and filter encapsulation (moulding a plastic frame around a filter) – all of which are carried out at BEC Group’s Hampshire site.

What is plastic injection moulding at BEC Group?
Plastic injection moulding machinery at BEC Group.

Why use plastic injection 
moulding for your project?

Utilising plastic injection moulding for your project has many advantages’ this includes the speed of manufacture, the low costs associated with labour and production, the ability to create bespoke and complex part designs and the variety of thermoplastics that can be used.

You can have the part you want in the precise colour and plastic material that best fits its application in a timely manner and at a relatively low cost, what’s not to like?

What plastic is used 
for injection moulding?

Hundreds of different thermoplastics are used in the injection moulding process, ranging from rigid to rubbery, fragile to tough, and translucent to opaque. The plastic material used depends upon its application – the mouldings may need to be impact resistant, chemical resistant, a specific colour, flexible etc. Cost also plays a part in material selection.

Learn more about some of our most popular plastics below:

  • Polypropylene
  • Acrylic
  • HDPE
  • Acetal
  • PET
The various plastics used for plastic injection moulding.
How plastic injection moulding works at BEC Group.

How does plastic 
injection moulding work?

At BEC Group, a new project usually begins with the creation of a mould tool by our specialist in-house toolmakers. This tool contains a mould within it that forms the shape of the finished product.

Once a steel tool has been designed and built, it is loaded into an injection mould machine, plastic pellets are heated in a barrel attached to this machine, and once the correct temperature has been reached it is injected into the cavity within the tool. The plastic cools down and is then removed from the machine either manually or mechanically.

What can injection moulding 
be used for?

Plastic injection moulding applications are vast and include many commercial and domestic products used in daily life. The casings for your remote control, the knobs in your car, the electric car charger at your workplace and the filters in your tumble dryer are all just a couple of common examples of components moulded through mass production.

Do you have a project that may require plastic injection moulding? Get in touch, and we’ll be happy to help and provide you with a no-obligation quote.

The various instances that plastic injection moulding can be used for.

For further information or a 
no-obligation quotation simply 
contact us today.


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