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What is Injection Moulding?

injection moulding

CJ Tool and Mouldings provide a technique in which plastic products are manufactured. This is known as plastic injection moulding, a process that involves design, tooling, moulding and assembly. With those processes in mind, creating the finishing product also includes clamping, injection, dwelling, cooling, opening and ejection. 

Common questions involved with plastic injection moulding include;

What is Plastic injection Moulding?

  • This a process in which plastic resin is melted and injected under high pressure into a mould which then cools down to form a particular shape. Injection moulding is suitable for manufacturing a large amount of consistent parts.

Can you produce parts in different colours?

  • Yes, our team have an extensive knowledge of colour control and additives allowing us to understand customer specifications and requirements for product performance. 

What is a plastic injection mould?

  • The injection mould is a tool that is used to create parts within the plastic injection moulding process. These tools are custom designed to allow for a specific part geometry, size cooling methods and injection pressure. They can be built with single or multi-cavity depending on how many parts need producing.

Is all work completed in the same facility?

  • CJ Tool and Moldings has the capability to design and build the required parts for any mould. Our injection moulding projects are all completed in-house providing our customers with a single point of contact.

Are CJ Tool and Mouldings an ISO registered company?

  • Yes, CJ Tool and Mouldings are ISO 9001:2015 certified molder and assembler. We take pride in our people, product, partnership process, and put quality at the forefront of everything.

How can I get a plastic prototype made?

  • Our design studio is equipped with the latest technology allowing our designers access to CAD software, working with 2D and 3D models providing guidance before undertaking the full injection moulding

Get in touch today and talk to the specialists, click here.


Added: 20 Feb 2019 10:26

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What is Injection Moulding

Injection Moulding is a primary process for producing plastic components. It is fast and used to produce large volumes of identical items from high precision engineering components to disposable consumer goods.

There are several processes of moulding plastic into useable shapes, each method has its own benefits and requires specific expertise and skill to execute. The injection moulding process is one of the most widely used and counts for a significant proportion of all plastics products.

Injection Moulding Process

Granules of plastic material are introduced into the injection moulding machine via a variety of conveying systems

The melted plastic material is injected under pressure via a runner system into the cavity. The mould tool that provides the cavity defines the shape of the moulded part.

The material is then cooled and finally ejected from the mould as a finished part. The whole injection moulding process then repeats, each cycle producing an identical part.


For more information on the injection moulding process, check out our expert advice section.

Added: 28 Jun 2017 09:51

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