Process: Injection Moulding


Injection Moulding Machine

The first step in the injection moulding process is to manufacture a mould tool. This is a precision machined part (or assembly of parts) that contains the cavity - or cavities - the same shape as the finished part. The mould tool is unique for every component, but can be used many times. Tooling costs are usually quite high; therefore, economies of scale dictate that injection moulded parts are required in high quantities.

A mould tool is clamped into an injection moulding machine. At the other end of the machine, plastic granules are fed into a heated cylinder and a reciprocating screw therein moves the plastic, which melts into the mould under pressure. When the plastic hardens, the clamping unit opens so the final component can be removed. The process is then repeated.



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E.g., 21/08/2019
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Injection Moulding projects for quote

  1. Drawings count: 2

    Plastic & Rubber-Injection Moulding

    This company specialises in the manufacture of large volumes of small components used within the commercial automotive industry. They are looking for a UK-based supplier to manufacture the attached plastic seal caps, which are currently made overseas. Please note that tooling is also required. Quotes are required for 9,000 per year, which will be required in monthly call-offs. Pricing and quality is paramount within this enquiry, for which an order is expected to be placed next month. With an annual spend of £40,000 on injection moulding services, this is a fantastic opportunity to work with a sizeable company who source large numbers of moulded components over many years.

  2. Drawings count: 3

    Plastic & Rubber-Injection Moulding

    This company has an order to place for the attached injection moulded seal caps, which will be used within the automotive industry. These are currently made overseas, but the buyer is keen to bring production back the the UK. Quotes are required for 9000 off, which will be an annual requirement. Tooling is also required. Pricing and quality of the end product are of the most importance within this enquiry and could lead to further injection moulding projects moving forward, in addition to this initial requirement.

  3. Drawings count: 7

    Plastic & Rubber-Injection Moulding

    This manufacturing design house, who currently spends approximately £100,000 a year on bespoke plastic components, is currently looking for a supplier who can assist with the manufacture of the attached collapsible broom set. This is to made from a combination of both plastic and aluminium parts. The buyer is expecting the order quantities to increase going forward in line with demand. There is an immediate order to place for this enquiry which will be repeated, although the frequency is not yet known. IMPORTANT: There is a non-disclosure agreement running with this enquiry. Please print this off, complete ALL sections, sign and date it and return the page to sourcing@qimtek.co.uk or fax 01256 394600. Once received, all drawings and documents will be released to your account.

  4. Drawings count: 6

    Plastic & Rubber-Injection Moulding

    This manufacturer of cameras and camera accessories is interested in hearing from suppliers who can assist with a new range of glass holders for both initial and ongoing production. There are various sizes required in the long term, but initially the buyer is looking for quotations on the largest size, with the manufacture of the smaller ranges to follow. Although there is no immediate order to place for this enquiry, the buyer is hoping to go to market with these parts at the end of September and therefore, the initial order is expected to be placed mid to late July. This is to be repeated on a yearly basis going forward.

  5. Drawings count: 7

    Plastic & Rubber-Injection Moulding

    This company has a requirement for the attached caps and flanges, as well as similar components, which will be used within the automotive industry. Quotes are required for 180,000 off per year in regular monthly call-offs, for a minimum of 4 years. Extra drawings for these particular parts, as well as similar parts, have been requested from the designer and will be made available as soon as possible.

  6. Drawings count: 1

    Plastic & Rubber-Injection Moulding

    This regular Qimtek client is looking for a supplier to make a new design of black Nylon bung, which will be used within industrial cleaning equipment. Quotes are required for 1000 off with a view to repeat orders being placed, as well as an opportunity for similar work. Please note this enquiry has also been sent to plastic machining suppliers, in order to explore the viability of both processes.

  7. Drawings count: 3

    Plastic & Rubber-Injection Moulding

    This buyer seeks a UK supplier to produce a moulded ABS core clips using free-issue tooling. Quotes are currently sought for 2000 and 3000 off of this design, for which there is an immediate order to place. In addition, this will likely lead to ongoing work for the chosen supplier, as well as an opportunity to venture into additional projects. The core clips will be used within an industrial machinery application. Interested suppliers are asked to make contact with the buyer directly in order to be considered for this project.

  8. Drawings count: 1

    Plastic & Rubber-Injection Moulding

    This security shutter manufacturer, who spends approximately £50,000 a year on outsourced plastic manufacture, is looking for a UK supplier of the attached plastic guide rails. There is an immediate order to place, although samples will be required before full production can commence. This part will be required on a repeat basis from the chosen supplier, meaning that the successful supplier will win a new long-term customer as well as the work in question.

  9. Drawings count: 4

    Plastic & Rubber-Injection Moulding

    Destined for end use within the automotive industry, these plastic caps are to be made from low density polyethylene. Quotes are required for 40,000 off each cap, with additional tooling also needed. The client has also advised that this will be an annual requirement, making it an ideal opportunity to fill long-term capacity. In addition, there may be scope for the chosen supplier to expand upon their involvement with the client moving forward. These parts are currently manufactured in Taiwan, although the client is keen to return production to the UK; therefore, pricing is an important consideration within this enquiry.

  10. Drawings count: 6

    Plastic & Rubber-Injection Moulding

    This university student, together with the the assistance of the university, has a project which is destined for use within under-developed countries with electricity supply issues. Suppliers are sought for both the initial and ongoing production of the attached plastic moulded parts, including a battery storage seat and a water storage seat. There is an immediate order to place, with delivery required at the supplier's earliest convenience. This is expected to be repeated every three months going forward, in hopefully increasing quantities.

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