UK Injection Moulding for Technical OEM Components

Precision moulding for low and medium-volume production

Our injection moulding department operates 28 machines with clamping forces from 15 to 180 tonnes. This range enables us to manufacture small precision parts weighing less than one gram through to larger components with shot weights of approximately 455 grams.

Production quantities typically range from around 100 to 40,000 components, although the appropriate manufacturing approach depends on part design, tooling, material and repeat demand. Our equipment is supported by material drying, handling and process-control systems for consistent production.

Where required, moulded parts can pass directly into our in-house product assembly, cable assembly, inspection or testing operations. This can reduce transport, handling, work in progress and the number of suppliers involved in producing a completed component or assembly.

Engineering polymers and material selection

Inoplas processes a broad range of thermoplastics, from established commodity and engineering polymers to specialist high-performance materials with demanding processing requirements.

These include grades of polypropylene, polyethylene, ABS, polycarbonate, acetal, nylon, PBT, PPA, PPS, TPU and PEEK, together with filled, reinforced, flame-retardant and colour-matched compounds.

Material selection affects far more than the headline mechanical properties. Temperature, chemicals, moisture, electrical performance, dimensional stability, appearance, regulatory requirements, availability and cost must all be considered alongside mould design and processing behaviour.

We can work with customer-specified materials or help assess suitable alternatives in conjunction with material manufacturers and suppliers. Testing and approval remain important where a material change could affect product performance or compliance.

Tooling designed around the production requirement

A successful injection moulding project depends on both component design and mould-tool construction. We can review and produce CAD data, drawings or existing samples before tooling begins, considering factors such as wall thickness, draft, radii, gating, parting lines, shrinkage, tolerances and ejection.

Production tooling commonly uses hardened H13 steel inserts to provide repeatability and service life. Depending on the application, volume and development stage, alternatives may include P20 steel, stainless steel, aluminium or additively manufactured cavities for prototypes and small sample quantities.

Our design and development, rapid prototyping and tooling services help customers evaluate these choices before committing to full production tooling.

Specialist moulding and secondary operations

Alongside conventional injection moulding, Inoplas provides overmoulding for cables, connectors, PCBs, electronics and other components, together with insert moulding of pins, contacts, threaded inserts and other items.

Projects can also incorporate ultrasonic welding, heat or ultrasonic insertion, soldering, crimping, cable preparation, product assembly and functional testing. A dedicated Class 7 cleanroom and an ESD-controlled suite support applications requiring controlled production or handling conditions.

These connected capabilities allow us to take responsibility for more of the manufacturing process rather than supplying only an individual plastic part.

UK injection moulding support for your project

Inoplas operates an ISO 9001:2015 quality management system and supports both new-product development and established production requirements.

If you are looking for a UK injection moulding company for a new component, replacement tool, material review or reshoring project, send us a drawing, CAD model, sample or outline of the requirement. We will review the application and discuss the most practical route to production.