About WSM Plastics

Sectors we specialise in

We have specific expertise across these specialist areas and can also help across other tool making and injection moulding requirements

About WSM Plastics


We deliver solutions to your requirements, helping you create the right products more efficiently and cost-effectively.

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Our specialist services

We are highly experienced across the full production lifecycle from design, prototyping, toolmaking, injection moulding and post moulding services

Plastic injection moulding

Leading UK plastic injection moulders for various industry sectors from aerospace to medical

Contact Emma Spilsbury, Business Development Manager
+44 (0)1903 875888 or email
Emma Spilsbury

Custom plastic injection moulding manufacture

In our modern plastic injection moulding facility, we have the capacity for manufacturing high volume parts as well as low volume technical products. 

Case Study Harvey Water Softeners

“The team at WSM Plastics will always strive to improve processes and make the highest quality product in the most efficient way. WSM Plastics always seek to work in partnership with their customers, making for a great business relationship.”

Gavin Bridger Head of Manufacturing Operations at Harvey Water Softeners

Tailor-made plastic injection moulders

As plastic injection moulders we manufacture small or large components, recycled material, engineered polymers, the production of just one component or the assembly of a whole product, we can offer you the entire solution.

Plastic injection moulding is ideal for companies wanting to produce custom plastic products or components for either mass production or technical low volume production. The key benefits for using this process include the ability to repeatedly produce plastic components and parts with consistent high quality.

We have a strong reputation for our ability to design and manufacture complex injection moulded parts and products that use engineered high-performance polymers. In our modern injection moulding facility, we run a machine range from 20T up to 650T allowing us to accommodate from small to large projects/components.

Depending on our customers’ requirements, our team will support you at every stage in your project.

Our plastic injection moulding services include:

  • Product design and refinement support
  • Prototype components
  • Close tolerance and critical moulding
  • Mass production of plastic components and fully assembled products
  • Low volume technical production

Find out more about our design support, prototypetool making and post-moulding services.

Plastic Injection Mouldrers

Why use us?

Over 25 years' experience in tool making and plastic injection moulding manufacture. 

  • Bespoke solutions
  • A responsive supply chain
  • A UK-based technical team
  • A UK-based project management team
  • In-house design support
  • Bridge tooling
  • Serial production tooling
  • Engineering grade polymers
  • Rapid prototypes
  • A proud member of Made in Britain
  • Low and high volume production
  • DFM feedback
  • Material expertise
  • Alternative far east tooling and production solutions
plastic injection moulding companies uk

“We go the extra mile to help you get your product manufactured on time and on budget. “

Emma Spilsbury, Business Development Manager

+44 (0)1903 875888

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Interested in working with us? Discuss your next project with our dedicated team:

+44 (0)1903 875888 or email