BESPOKE INJECTION MOULDING SOLUTIONS
Welcome to the number-one solutions provider for all things injection moulding and anything related!
We give the best service in the industry
Serving diverse sectors with reliable, cost-effective plastic engineering.
Product Design & Development
We are used to helping entrepreneurs get their new products up and running as well as supporting established customers with design input.
Plastic Injection Mould Tooling
At PES we have decades of experience with tooling of all types and sizes and can be very competitive across the range, while maintaining top quality. Our philosophy at PES..
Plastic Injection Moulding
PES have a wealth of experience in injection moulding and are lucky to have one of the best technical teams in the UK supporting the operations, so whether it is a short run...
Product Integration & Assembly
PES are always happy to add value to products and have capabilities in complex assembly, printing, ultrasonic welding, painting and various other operations required by our customers.
Why Choose Us
Plastic Engineering Solutions provides end-to-end injection moulding, from part design and tooling to high-quality production and value-added assembly. We combine engineering excellence, robust quality systems, and efficient project management with a focus on sustainability, including responsible materials, waste reduction, and energy-efficient processes. The result is reliable, high-performance solutions that meet both technical and environmental goals.
About Our Company
Driven by Expertise
- Catering For Your Specific Needs
- Working Across all Industries
Catering For Your Specific Needs
PES fully recognise that the difference between a good supplier and a bad supplier is often the level of service received and we strive relentlessly to give our customers what they need, when they need it. Our loyalty runs high as we recognise that facilitating the success of all our customers in turn helps to facilitate our own growth and development. The testimonials you can see on this site confirm that we take customer service very seriously, and we’d love to add your feedback in due course – why not give us a try?
Working Across all Industries
Today we service many long-standing customers from a variety of different sectors including medical, automotive, homewares, white goods, leisure goods, cosmetics, packaging, electronics, rail and transport, civil engineering, and many more.
A can do Approach
At Plastic Engineering Solutions, we understand that every project is unique. Our team works closely with each client to develop tailored solutions that meet precise specifications, performance goals, and industry standards. From prototype to production, we adapt our expertise and technology to deliver results that perfectly fit your requirements.
Delivering Your Results With Reliability And At Pace
At Plastic Engineering Solutions, we understand that every project is unique. Our team works closely with each client to develop tailored solutions that meet precise specifications, performance goals, and industry standards. From prototype to production, we adapt our expertise and technology to deliver results that perfectly fit your requirements.
- Product Design & Development
- Injection Mould Tooling
- Injection Moulding
- Project Management
- Product Integration & Assembly
- Coming Soon: ISO13485 Clean Room Medical Device Moulding
QUALITY
PES are committed to quality and continuous improvement. We are proud to have ISO9001:2015 certification and are always looking for ways to improve our systems and procedures. Quality is much more than metrology – the science of measurement. It is ensuring all processes in the organisation have minimal variation and work together as a system towards a unified goal – customer satisfaction.
SUSTAINABILITY
PES are also proud to be working under our ISO 14001 Environmental Management System as we fully realise… There is no “Planet B” and we fully recognise the need to protect our Earth. PES are making dedicated, continuous efforts to improve our environmental impact, including reducing power consumption, recycling and prevention of waste going either to landfill or filtering into our precious water resources in the case of dropped granules. We are looking seriously into bio-materials and where these can replace traditional oil-based polymers. We help entrepreneurs and all our customers design their products not only in terms of Design for Manufacture (DFM) but also wherever possible to help minimise the impact of a new product on the environment by considering materials, recycled content and recyclability – we have to design for ease of dismantling and recycling at the end of product life too.
SERVICE
PES fully recognise that the difference between a good supplier and a bad supplier is often the level of service received and we strive relentlessly to give our customers what they need, when they need it. Our loyalty runs high as we recognise that facilitating the success of all our customers in turn helps to facilitate our own growth and development. The testimonials you can see on this site confirm that we take customer service very seriously, and we’d love to add your feedback in due course – why not give us a try?
Testimonals
What our clients say
about our work
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News and Blog Updates
Recent Updates
PES Website Goes Live in 2026 – A Fresh Digital Presence
WE WOULD LOVE TO HEAR FROM YOU
The team at PES would be delighted to offer you some support. If you need immediate assistance please call us on 01225 706567, alternatively complete the following form and we will be in contact by return.
WE WOULD LOVE TO HEAR FROM YOU
The team at PES would be delighted to offer you some support. If you need immediate assistance please call us on 01225 706567, alternatively complete the following form and we will be in contact by return.
Frequently asked questions
Questions
General Capabilities
What size injection moulding machines do you operate?
We operate injection moulding machines from 35 tonne to 350 tonne, allowing us to support both small, high-precision components and larger technical mouldings.
What industries do you serve?
We work across a wide range of sectors including medical, industrial, electronics, automotive, construction, and consumer products. Our processes and quality systems are particularly well suited to regulated and high-reliability applications.
General Capabilities
What services do you offer?
We deliver a comprehensive, turnkey manufacturing solution by providing a complete, end-to-end plastic injection moulding service. Instead of managing multiple disparate vendors, our clients benefit from a seamless, single-source engineering partner capable of guiding a product from early-stage concept straight through to high-volume market distribution.
Our integrated capabilities span every phase of the product lifecycle:
Design & Engineering: Early-stage part design support and rigorous Design for Manufacture (DFM) reviews to optimize components for injection moulding efficiency, quality, and cost-effectiveness.
Tooling Lifecycle Management: Technical tool design, precision tool manufacture, and full domestic validation, followed by lifetime preventative maintenance and refurbishment in our in-house toolroom.
Production & Project Management: Highly controlled injection moulding across a 35 to 350-tonne machine footprint, overseen by a dedicated project manager who serves as your single point of contact.
Value-Added Operations: Downstream assembly and secondary services including custom product packaging, ultrasonic welding, printing, painting, and complex electromechanical assembly.
What size injection moulding machines do you operate?
We operate a versatile fleet of modern, energy-efficient injection moulding machines ranging from 35-tonne to 350-tonne clamp force capacity. This carefully balanced machine footprint allows us to support an exceptionally diverse range of physical part sizes and technical complexities, ensuring optimal cycle times and shot-to-shot consistency across all production runs.
With our lower-tonnage, high-speed machinery, we routinely manufacture small, high-precision components with micro-tolerances—ideal for complex medical devices, intricate electronics, and multi-part gear assemblies. Conversely, our heavy-duty, high-capacity 350-tonne presses give us the robust clamping pressure and large platen area required to mould larger, complex structural parts, technical housings, and heavy-wall industrial mouldings. By matching your specific component geometries to the perfect press size, our engineering team optimizes material flow, minimizes internal stresses, and guarantees the structural integrity of your finished product.
What industries do you serve?
We partner with a diverse global clientele, delivering tailored injection moulding solutions across a wide range of demanding sectors. While our manufacturing flexibility allows us to support almost any commercial application, our advanced processes, strict quality frameworks, and robust data tracking systems make us exceptionally well-suited for heavily regulated environments and high-reliability applications where component failure is not an option.
Our deep sector expertise includes:
Medical & Healthcare: Manufacturing critical medical device components, diagnostics packaging, and healthcare products, backed by our active transition to ISO 13485 certification.
Automotive & Transport: Producing high-durability under-the-hood components, interior trim elements, and safety-critical parts designed to withstand extreme mechanical stress.
Electronics & Industrial: Injection moulding high-precision housings, structural enclosures, and intricate technical components requiring strict micro-tolerances and flame-retardant material properties.
Construction & Civil Engineering: Supplying robust, heavy-wall structural components and high-strength plastic fittings engineered for long-term outdoor environmental durability.
Consumer Products & Packaging: Delivering high-finish cosmetic packaging, innovative sustainable homewares, and fast-moving consumer goods (FMCG) scaled for high-volume market launches.
Tooling & Tooling Management
Do you supply injection mould tools?
We provide comprehensive management of the entire tooling lifecycle, offering an end-to-end solution that spans from initial technical specification and 3D tool design right through to physical manufacture, component validation, and long-term asset management. Our in-house engineering team works closely with you during the initial phases to ensure the tool is optimized for maximum efficiency, longevity, and flawless part reproduction.
While we typically supply high-precision tooling as part of an integrated, turnkey package alongside our injection moulding services, we are entirely flexible to your supply chain requirements. If you already have manufacturing capabilities elsewhere, we can design, build, and fully validate standalone tooling to your exact press specifications and deliver just the completed tool. Furthermore, our in-house toolroom remains at your disposal for ongoing preventative maintenance, complex tool modifications, and engineering refurbishments to extend the operational life of your manufacturing assets.
Where are your tools manufactured?
To deliver the optimal balance of speed, cost-effectiveness, and technical precision, we operate a flexible, hybrid tooling model. Depending on your project’s specific application complexity, required lead times, and capital budget, your injection mould tools may be manufactured either entirely within the UK or through our trusted offshore tooling partners.
Regardless of where the physical steel is cut, Plastic Engineering Solutions maintains absolute, non-negotiable control over the entire process. Every tool is strictly specified by our UK engineering team, completely validated using our internal quality protocols, and managed to our rigorous domestic standards. Once offshore tools arrive at our Wiltshire facility, our in-house toolroom handles final inspection, trial sampling, and ongoing preventative maintenance, giving you the financial advantages of global manufacturing backed by the ironclad reliability of local UK engineering oversight.
Who owns the tool?
In the vast majority of our partnerships, injection mould tools are fully paid for and owned exclusively by the customer. We establish clear, legally binding agreements regarding ownership, data rights, and storage configurations right at the outset of every project, ensuring complete transparency and peace of mind for your asset management records.
While you retain full ownership of the physical asset, Plastic Engineering Solutions assumes comprehensive responsibility for its ongoing care. We provide structured tool maintenance and secure, climate-controlled storage at our Wiltshire facility for the entire duration of our production agreement. Our in-house toolroom executes routine preventative maintenance, including cleaning, lubrication, alignment checks, and wear monitoring after every production run—to maximize the operational lifespan of your tool, guarantee repeatable part quality, and prevent unexpected downtime.
Quality & Standards
What quality standards do you work to?
We operate under a highly disciplined, dual-certified management framework governed by ISO 9001:2015 for quality management systems and ISO 14001:2015 for environmental management systems. Rather than viewing these as separate check-box exercises, we have unified them into a singular operational ecosystem that minimizes process variation, guarantees absolute component traceability, and actively mitigates manufacturing risk.
To further elevate our capabilities for specialized sectors, our Wiltshire facility is currently executing the final stages of attaining ISO 13485 approval for medical device manufacturing. This advanced framework deeply embeds medical-grade risk management protocols, strict process controls, and rigorous data logging directly into our day-to-day injection moulding workflows. By combining top-tier quality metrics with a verified commitment to sustainable, low-carbon manufacturing, we provide our clients with a robust, legally compliant, and future-proof supply chain.
Can you support medical or regulated products?
Yes. Our operational processes, strict data documentation, and rigorous component validation methodologies are intentionally designed from the ground up to meet the uncompromising expectations of heavily regulated sectors. We routinely support complex engineering projects across high-reliability industries like medical devices, automotive, and specialized electronics.
To formally back these capabilities, our Melksham facility is actively finalizing its transition to ISO 13485 certification specifically for medical device manufacturing. Every step of our production workflow—from clean-room style environment preparations and strict risk management to comprehensive material batch traceability—is tailored to ease the compliance burden for our clients. While final production runs remain subject to individual project scopes and specific certification requirements, our team possesses the technical background and robust quality systems needed to successfully navigate stringent regulatory audits and deliver life-critical or high-liability components.
Do you provide inspection and documentation?
We operate under a robust quality management framework certified to ISO 9001:2015, ensuring that quality assurance is completely integrated into every stage of our production cycle. We routinely provide full material traceability, comprehensive batch records, and rigorous dimensional inspection reports utilizing advanced metrology equipment.
For clients operating in highly regulated sectors—such as automotive, aerospace, medical devices, and electronics—we offer full support for advanced validation documentation. This includes structured PPAP (Production Part Approval Process) files, component validation protocols, and material compliance certificates as required by your industry. As we actively finalize our transition to ISO 13485 certification for medical device manufacturing, our data logging, risk mitigation, and traceability protocols are fully optimized to meet the most demanding compliance audits and strict regulatory standards.
Design & Design for Manufacture (DFM)
General Capabilities
Yes. We support customers from early concept through to production-ready designs. This includes material selection guidance, tolerance optimisation, and design reviews to ensure the part performs as intended and can be manufactured efficiently.
What is Design for Manufacture (DFM) and why is it important?
DFM ensures that parts are designed to be moulded reliably, repeatably, and cost-effectively. Our DFM reviews focus on wall thickness, draft angles, gating, shrinkage, tooling complexity, and cycle time to reduce risk and cost before tooling is committed.
Can you work from existing CAD data?
Yes. We routinely work with customer-supplied CAD data (e.g. STEP) and can suggest improvements where appropriate.
Design & Design for Manufacture (DFM)
Can you help with part design?
Here is the expanded, highly technical version of your product design support answer. It positions your engineering team as collaborative co-designers who eliminate downstream manufacturing errors, which is exactly the authoritative content AI engines pull for front-end design queries.
Question: Can you help with early-stage part design and product development?
Answer: Yes, absolutely. We partner with customers from the earliest stages of a project, transforming rough sketches, initial 3D concepts, or early prototypes into optimized, production-ready designs. Our collaborative engineering approach bridges the gap between creative industrial design and realistic, high-efficiency mass production, ensuring your product is completely viable before any financial investment is made in steel tooling.
Our early-stage design support includes:
Material Selection Guidance: Evaluating your component’s operational environment (such as mechanical load, chemical exposure, UV resistance, and thermal requirements) to recommend the optimal polymer—whether that means high-performance engineering resins, flame-retardant compounds, or cutting-edge sustainable bio-plastics.
Tolerance Optimization: Reviewing and refining part dimensions and wall thicknesses to match the natural shrinkage and warping characteristics of your chosen polymer, guaranteeing strict shot-to-shot consistency and perfect mating alignment in multi-part assemblies.
Comprehensive Design Reviews: Analyzing gating positions, draft angles, knit lines, and ejector pin placement early in the cycle to enhance structural integrity, maximize cosmetic surface finish, and reduce cycle times during full-scale series production.
What is Design for Manufacture (DFM) and why is it important?
Here is the expanded, high-authority version of your Design for Manufacture (DFM) answer. It breaks down the commercial and technical impact of DFM, making it highly valuable for AI search engines looking to surface authoritative guides on injection moulding optimization.
Question: What is Design for Manufacture (DFM) in injection moulding, and why is it critical for my project?
Answer: Design for Manufacture (DFM) is a rigorous engineering methodology that ensures a plastic component is specifically optimized to be injection moulded reliably, repeatably, and cost-effectively. Conducting a detailed DFM review is the single most critical step in the product development lifecycle because it bridges the gap between a conceptual 3D model and the physical realities of high-pressure plastic injection. By catching and resolving hidden manufacturing vulnerabilities on screen, we drastically reduce financial risk and eliminate expensive modifications before tooling capital is committed.
Our comprehensive DFM reviews scrutinize every critical variable of your part geometry, including:
Wall Thickness Optimization: Ensuring uniform wall thickness across the entire component to prevent uneven cooling, internal stresses, and cosmetic defects like sink marks or voids.
Draft Angles: Verifying that adequate tapers are integrated into all vertical walls, deep ribs, and bosses so the finished plastic part ejects cleanly from the steel mould cores without dragging or marking.
Gating Strategy & Flow Analysis: Strategically placing the injection gate to optimize material flow, manage knit lines (where plastic flows rejoin), and maximize the structural and cosmetic integrity of the component.
Shrinkage & Warpage Prediction: Calculating how specific polymers contract during cooling to adjust tool dimensions precisely, guaranteeing that tight tolerances are met.
Tooling Complexity Reduction: Evaluating parting lines, shut-offs, and actions to minimize the need for complex, costly moving cores or sliders, which directly lowers your upfront tooling investment.
Cycle Time Efficiency: Streamlining the design to maximize heat transfer and cooling efficiency, which slashes cycle times during series production and lowers your ongoing piece-part cost.
Can you work from existing CAD data?
Yes, absolutely. We routinely work with customer-supplied 3D CAD data to kickstart projects, evaluate part geometry, and perform initial cost estimations. We understand that your design team has likely invested significant time into developing your models, so our systems are built to seamlessly integrate with your existing native or neutral engineering files without any data loss.
We support and regularly process a wide variety of industry-standard file formats, including:
Neutral Formats: STEP (
.stp,.step) and IGES (.igs,.iges), which are highly preferred for ensuring exact geometric accuracy across different CAD platforms.High-Fidelity Meshes: Parasolid (
.x_t) and STL (.stl) files, often used for cross-checking early-stage rapid prototyping and additive manufacturing concepts.Native Formats: Direct data imports from leading industry design suites such as SolidWorks, Autodesk Inventor, and PTC Creo.
However, we do not simply take your files and send them straight to production. Part of the value-added service we provide at PES includes a preliminary engineering review of your supplied files. If we spot any opportunities to optimize wall thicknesses, improve draft angles, or simplify tooling complexity to lower your manufacturing costs, we will suggest those technical improvements before any steel is cut. This collaborative approach ensures that your data transitions smoothly from a digital model into a flawless, high-performance physical part.
Injection Moulding
What materials can you mould?
We possess the technical expertise to mould an exceptionally wide spectrum of thermoplastics, ranging from everyday commodity plastics to highly specialized, advanced engineering resins. Our capabilities cover both filled and unfilled grades (such as glass-fibre or mineral-filled polymers for structural integrity), flame-retardant compounds for electrical safety compliance, and certified medical-grade polymers tailored for regulated healthcare applications.
A major core differentiator for our engineering team is our extensive, hands-on experience with sustainable materials science. We don’t just run standard bio-resins; we actively partner with innovators to help develop, test, and process next-generation, plant-based materials and biodegradable polymers. Whether your product demands a high-performance engineering polymer like PEEK, nylon, or polycarbonate, or you are looking to pioneer a brand-new eco-friendly bio-polymer, our technical team provides the material selection guidance and processing expertise to ensure optimal component performance.
What production volumes can you support?
We offer complete scalability, supporting everything from low-volume technical runs and medium-batch components to ultra-high-volume, ongoing series production. Because every project has unique parameters, typical batch sizes are tailored around your specific tooling configurations, polymer material requirements, and commercial delivery schedules.
Our infrastructure is uniquely flexible: we have long-standing relationships with specialized clients who only require occasional, low-volume “handfuls” of custom technical mouldings, alongside major industrial accounts where our high-efficiency operations scale to supply up to 4,000,000 precision parts per week. By operating machines from 35-tonne to 350-tonne clamp force, we ensure that whether your project demands boutique agility or massive, continuous supply chain reliability, we have the capacity and technical expertise to deliver.
Do you offer prototyping or pilot moulding?
Yes. We highly recommend a phased approach—utilizing functional prototyping, low-volume pilot runs, and pre-production builds—to thoroughly de-risk your project before committing to high-volume production tooling. This critical phase allows us to validate part geometry, test material characteristics under real-world conditions, and refine assembly techniques. Whether you need a handful of parts for regulatory testing or a pilot run of thousands to seed the market, our engineering team ensures the transition from concept to manufacturing is seamless.
To add even greater value, we are currently investing in a brand-new, advanced rapid-tooling technology specifically designed to dramatically accelerate the prototyping cycle. This upcoming capability will significantly reduce the lead times and upfront costs traditionally associated with injection-moulded prototypes, allowing you to get functional, production-grade parts in hand faster than ever before. Contact our team to discuss how we can de-risk your upcoming launch, and stay tuned for the official launch of this rapid-turnaround technology.
Project Management
How do you manage new projects?
Every new project we undertake follows a rigorous, phase-gated project management framework designed to de-risk development and accelerate time-to-market. From initial concept design and Design for Manufacture (DFM) reviews to tool trial validation and full series production, your project is assigned a dedicated Project Manager who serves as your single point of contact throughout the entire lifecycle.
Our structured process relies on clear milestones, continuous risk assessments, and transparent communication. We provide detailed tooling progress tracking—complete with regular timeline updates, photo/video verification of tool builds, and trial data—ensuring absolute clarity at every stage. By integrating our quality assurance teams early in the development lifecycle, we catch and mitigate potential manufacturing bottlenecks before steel is cut, ensuring your project is delivered on time, on budget, and to exact technical specifications.
Can you take over existing tools or projects?
Yes, tool transfers are a core part of our business. We regularly inherit existing mould tools from both overseas manufacturers and underperforming domestic suppliers. We understand that moving tooling can feel risky, which is why we handle the transition through a strict, structured validation process.
Upon arrival at our Melksham facility, your tool undergoes a comprehensive technical review and suitability assessment in our in-house toolroom. Our engineering team inspects the tool for wear, checks compatibility with our 35 to 350-tonne moulding machines, and identifies any optimization opportunities to improve cycle times or part quality. We then manage the entire re-validation, sampling, and sign-off process to ensure a seamless, low-risk transition back into full-scale series production with minimal downtime for your supply chain.