Plastic Injection Moulding Northampton
Precision Plastic Injection Moulding in Northampton
Stephens Plastic Mouldings is a UK-based plastic injection moulding company proudly serving the Northampton region. We support manufacturers, designers, and procurement teams with cost-effective, scalable moulding solutions tailored to each stage of your production journey. With decades of experience and ISO 9001 accreditation, we are trusted by businesses across Northamptonshire for reliable, repeatable results.
Whether you’re looking to prototype a new part, improve an existing product, or outsource a high-volume order, we combine responsive service with advanced manufacturing to deliver on time – every time.
Why Northampton Manufacturers Work with Stephens Plastic
Engineering Confidence. Commercial Flexibility.
Northampton businesses benefit from a local injection moulding supplier that understands the pace and complexity of today’s supply chains.
We’re known for:
- In-house design, tooling, and production.
- Short and long run moulding with no MOQs.
- Experienced engineers and personal account managers.
- Support for early-stage prototypes and full-scale manufacturing.
- Fast lead times and just-in-time delivery options.
- Quality assurance backed by ISO 9001:2015 systems.
We provide parts that meet demanding tolerances and timelines – without the complications of multiple third-party vendors.
Sector Support Across Northamptonshire
With its strong roots in advanced manufacturing, logistics, and consumer goods, Northampton requires dependable moulding solutions that scale with business needs.
We manufacture brackets, fittings, housings, and load-bearing parts for use in automation, tooling, and equipment enclosures.
From bins to caps and retainers, our parts support logistics centres and warehouse systems operating across the Midlands.
Stephens Plastic works with consumer brands to mould durable, aesthetic parts for sports, leisure, personal care, and homeware items.
We partner with local innovators, prototyping new designs and providing flexible production for limited product runs or seasonal ranges.
Our Full-Service Injection Moulding Capabilities
We offer end-to-end support – from the first sketch to finished parts delivered to your Northampton location.
1. Design & Development
We help you optimise your component’s geometry, draft, material and function to ensure manufacturability and performance. We support CAD review, prototyping, and DFM.
2. Tooling In-House
Our on-site tooling facility reduces lead times and cost. We build and maintain moulds from single-cavity prototype tools to hardened steel multi-cavity production units.
3. Rapid Prototyping
Trial runs and short series moulding allow you to test, refine and validate before committing to full production. Fast turnarounds and material sampling included.
4. Precision Injection Moulding
We operate a fleet of modern machines with varying clamp forces to mould parts from under 1g to several kilos – using automation and process monitoring for consistency.
5. Value-Add Operations
We provide post-mould finishing including ultrasonic welding, machining, printing, and light assembly – delivering a ready-to-use product or subassembly.
6. Packaging & Logistics
Every delivery is prepared to your specification, with options for scheduled deliveries, call-offs, or export-ready shipments.
Materials & Technical Advice
Our team provides guidance on selecting the right material for durability, compliance, aesthetics, and cost:
- ABS, polypropylene, nylon, polycarbonate, PBT.
- Flame-retardant, anti-static and UV-resistant grades.
- Food-grade and medical-compliant plastics.
- Eco-conscious materials including recycled and biodegradable polymers.
We work closely with supply chain partners to source approved resins and help you stay ahead of evolving regulations.
FAQs
Yes - we help with everything from CAD optimisation to low-volume trial runs. Our prototyping services are ideal for start-ups and R&D teams.
Tooling typically takes 3-5 weeks depending on complexity. First-off parts can be produced shortly after, and repeat orders are fulfilled quickly.
Yes - we work across a wide range of sizes using machines suited for small precision parts or large structural components.
Absolutely. We provide flexible delivery options throughout the region, including timed or scheduled deliveries.
Yes - all design, tooling, moulding, and quality control is carried out at our centrally located West Midlands facility.
Start Your Moulding Project with Confidence
Stephens Plastic Mouldings supports Northampton’s industries with the precision, flexibility, and service modern manufacturers need. From concept development to high-volume supply, we’re ready to help you streamline production and scale with confidence.
Let’s talk about your next component or project.
Call 0121 544 5808 OR Visit Website – Your Trusted Plastic Injection Moulding Supplier Northampton.
We’d Love to Hear From You, Get In Touch With Us!
Please contact us if you would like to receive a quotation and/or to find our more about how we can provide the service you are looking for.