Injection Moulding
Moulded plastic components and prototype parts
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CNC machined parts from 3 days
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Additive manufacturing with a choice of materials - overnight printing available
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Resin casting for low volume production parts

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We offer fully integrated tool making and injection moulding services, built to complement our fast-turnaround prototyping and production capabilities.
Designed and manufactured entirely in the UK, our tooling and moulding services are ideal for companies seeking accuracy, speed, and control, especially in bio and life science R&D.
Whether you’re launching a new product, refining a prototype, or scaling to low-volume production, we can support you at every stage of development.
UK tooling, designed and built in-house: All injection mould tools are designed and manufactured in the UK. This gives you full control, fast lead times, and clear communication throughout your project. It’s especially valuable if you’re working within UK compliance or regulatory requirements.
Ideal for R&D in bio and life sciences: We are a trusted partner for R&D teams, particularly in the biotech, diagnostics, and medical device sectors, where speed and accuracy are key. Our team works closely with you to support early-stage design, clinical validation and pilot production.
Integrated with your prototyping workflow: As a long-established provider of rapid prototyping, 3D printing, and CNC machining, our injection moulding service fits naturally into the end-to-end development workflow, making us the ideal partner for fast-moving innovation projects.
Your development partner: At Prototype Projects, we do more than manufacture, we collaborate. We are your development partner, working alongside your engineers, designers, and project leads to ensure the best outcomes from the earliest concept through to final production.
Our experienced team contributes strategic insight on material selection, design for manufacture, tooling optimisation, and production readiness. We help you reduce risk, increase speed to market, and develop smarter solutions for even the most complex challenges.
Production & low-volume runs: Ideal for pilot production, clinical validation, or bridging to full-scale manufacture.
Insert moulding and overmoulding: Multi-material options to improve mechanical and functional performance.
Post-mould assembly: Final component assembly in-house for a complete manufacturing solution.
Tooling options: Aluminium, pre-toughened or fully hardened steel, designed for speed, repeatability, and longevity, manufactured entirely in the UK.
We offer tool design, tool manufacture, injection moulding, 3D printing, CNC machining and vacuum casting under one roof. This joined-up approach gives you a single point of contact and full visibility throughout development. It also means faster lead times and fewer hold-ups.
Our UK-based injection moulding and tooling service is responsive and flexible, especially for projects in regulated industries like healthcare, biotechnology, and instrumentation.
We are accredited to ISO 9001:2015 for quality management and ISO 14001:2015 for environmental responsibility, ensuring consistent, sustainable manufacturing.
We primarily mould components in Polypropylene (PP), a popular choice in the life sciences sector due to its excellent chemical resistance and flexibility. However, we also work with a wide range of thermoplastics to suit different applications, including:
ABS (Acrylonitrile Butadiene Styrene): Strong, impact-resistant and ideal for durable, rigid parts.
PA6 (Nylon 6): Tough, wear-resistant and suitable for mechanical components.
PC (Polycarbonate): High strength and clarity, often used for enclosures and covers.
Glass-Filled (GF) and Flame-Retardant (FR) variants: For enhanced strength, stiffness or fire safety performance.
If you’re unsure which material is best for your application, we’ll help you identify the right option. Contact us to discuss the full range of thermoplastics we can source and mould.
Our in-house toolroom is equipped with modern CNC machining technology for the fast, accurate production of mould tools. We support injection moulding from as little as 1 gram shot weight, making it ideal for low-volume production, pilot runs, and the transition from prototyping to full-scale manufacture.

If you need a UK partner for injection moulding, whether for a prototype, short production run or fully assembled component, request a quote using the form below.
Get in touch on 01763 249760 to discuss your project with our team, or to book a tour of our facilities.
Please Note: requests for our 3-Day production speed must meet our 3-Day criteria. All final data for our 3-Day production speed is required by 4.30pm.
To request a quote for any of our other technologies/services, such as Vacuum Casting, Model Making and Laser Cutting, please complete this contact form.
Injection moulding is a process for producing plastic parts by injecting molten material into a mould. It’s ideal for consistent, high-quality components in production-grade materials, making it suitable for both development and low-volume production.
We specialise in low-volume injection moulding. This allows you to validate designs in real materials and bridge the gap between prototype and mass production. It’s also ideal for ongoing low-volume production where consistency and quality are essential.
We mould a wide range of thermoplastics, including ABS, nylon, polypropylene and elastomers. Our team can advise on the most suitable material based on the strength, flexibility, and surface finish you need.
3D printing and CNC machining are often used for prototyping or very low volumes, giving flexibility in design and speed of turnaround. Injection moulding is the next step when you need higher volumes of consistent, production-grade parts. Many of our customers start with 3D printing or CNC machining for prototypes, then move to injection moulding for low-volume production.
We typically supply from a handful of parts up to a few thousand, making injection moulding well-suited to bridge manufacturing, pilot runs, and repeat low-volume production.
Every project is unique, and lead times vary depending on the complexity of the tooling and the number of parts required. We’ll confirm timescales when we provide your quote.
Yes. We design and manufacture the mould tooling in-house using our CNC machining expertise. This gives us full control over accuracy, quality and timescales, and means we can adapt quickly if your design changes.
Yes. Because we machine our tooling in-house on CNC equipment, we can make modifications or updates quickly and accurately. This flexibility helps reduce delays and costs compared to outsourcing.
Yes. We offer in-house post-mould assembly for a complete manufacturing solution. This includes fitting inserts, joining components, or assembling multiple parts into finished units.
We support clients across sectors including medical, aerospace, automotive, consumer goods and electronics, where functional, production-quality parts are essential.
Yes. We frequently work with clients on pre-market products and are happy to sign NDAs to protect your project.
Our CNC machining team produce accurate, high quality parts with an excellent finish from our suite of CNC machines. Request a quote for your next prototype part.
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