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That's a fair question and many of our customers do not have prior experience of the moulding process:
In summary, an injection moulding machine (press) uses a screw-type plunger to force molten plastic material into a mould cavity. The mould (tool) itself is generally made from hardened steel and is bespoke to the part being made so we design each tool to fit one of our range of 24 moulding machines depending on size and complexity. For anything beyond that give us a call and speak to one of our engineers - they don't bite.
Most of the plastic materials you see around you will have been injection moulded although extrusion and vacuum forming are used in some applications. Once we have made a tool we can make 1 item or millions of beautiful, consistent parts.
That's a common misconception; prototype tooling and proof of concept tooling can start from as little as £500 (design dependant). We try to use P20 steel on our prototype tools as we find the cost saving in aluminium is very slight and P20 offers a much more robust solution. The cost grows the more complex the design and the higher the target volumes but we are masters of keeping the cost down wherever possible.
We can start with whatever you have got. Annual usage, an existing part, performance requirements, CAD or 2d drawings are all a good start. We are happy to sign an NDA if necessary so that you can discuss a project more freely with us. The best start is often for your engineers to visit us and go through the requirements over a cup of tea.
  • Discussion around design and application (Firm up DFMA)
  • Quote both for tooling and per part (normally within 3-4 days after we agree what you need)
  • Make tools and procure material¬†(normally 4-12 weeks dependant on complexity)
  • Set up Quality Documentation, Method sheets, Jigs and fixtures as required
  • Sample, measure and document as required for customer approval
  • Commence production
Our projected area limit is 325 square cm in PP (polypropylene) whereas glass filled nylon halves that value. The heaviest parts we make weigh around 400g.
Obviously a fundamental part of the process and one we are able to advise on; there are a huge number of variables including durability, temperature range, surface finish, water resistance, colour, clarity and, of course, cost. We have experience of working with most thermoplastics and are happy to share it.
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Inoplas Technology Limited
Units 1-4 Uddens Trading Estate
Wimborne, Dorset. BH21 7LD
Registered in England: 1129378

Telephone:
(+44) 1202 866000
Email:
sales@inoplas.co.uk

Inoplas Technology offers precision injection moulding and overmoulding in the UK

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