Paul Norman Plastics Limited
Unit S5, Inchbrook Trading Estate
Bath Road, Woodchester
Stroud, Glos, GL5 5EY
United Kingdom
Tel: 01453 833 388
Fax: 01453 834 055
info@pnplastics.co.uk

Tool Design and Manufacture

We have a fully equipped tool room on-site employing two full time toolmakers, with years of experience in manufacturing single and multi-cavity injection mould tools.   Therefore tools can be manufactured in-house allowing greater control and if in the unlikely event of a tool break down or a product requires modification this can be carried out with minimal delay.

We are happy to except projects that are at any stage, please refer to our case studies section for examples of our work.

Tooling can be very expensive; to reduce costs we offer a part ownership scheme.  If the component is no bigger than 100mm square, we may be able to manufacture the tooling to fit into one of our existing bolster sets.

Services:

Product Design/Development

Whether you have an idea or have a product ready for manufacture, by using our in depth knowledge of the moulding process and injection mould tool manufacturing process, enables us to offer advice on improving functionality and reducing manufacturing costs. 

Rapid Prototyping

We are able to offer a rapid prototyping service which can help to refine your design ideas, not only for concept approval, but for fit and functional testing to prove the design and eliminate any costly errors, prior to committing to manufacture the hard tooling.

Rapid prototyping is also suitable for low volume production runs up to 50 off.

Insert & Over Moulding

We are able to insert or over mould.  Insert moulding being a process where a metal insert is incorporated into the component during the moulding stage.  Over moulding is very similar, an example being adding a rubber foot to a leg.

Materials

We mould most materials, the most common being, ABS, Acetal, Polypropylene, Nylon, Filled Nylons, Polycarbonate, Acetal, Acrylic, as well as the more exotic such as Polysuphone, Ultem and Triax.

Injection Moulding

Injection Moulding is the primary process for manufacturing low to high-volume plastic parts. Injection Moulding takes plastic in the form or pellets or granules and heats the material until it melts. The material is then forced into a mould, where it is allowed to cool and harden into the desired shape. The mould is then opened, and the part is removed or "ejected", at which time the cycle is repeated. While the tooling can be expensive, the piece part cost is very low relative to other manufacturing processes.

We have a modern mould shop with 15 machines ranging from 22T to 250T lock which in turn means we can produce a moulding which weighs as little as a few grams up to 700 grams, or as little as 3 sq. mm to 8000 sq. mm projected area.
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