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What is injection moulding?

You, the customer, has an idea or project which requires plastic components.

Our Design Engineers will work with you to help design a mouldable, working, cost effective product. We use SolidWorks, 3-Dimensional modelling software, to help with the design and visualisation of your product. We can provide you with fully rendered pictures for evaluation or presentation.

Mould design requires considerable expertise in both engineering and plastics. With the latest CAD technology we maintain constant quality and precision throughout the mould design process.

Our Toolroom uses special tool steels selected for their wear resistance and dimensional stability. We are able to produce tools in a matter of weeks. Each component is precision engineered, usually to a tolerance of 0.01mm. These components are then fitted together to produce a tool which will operate at temperatures over 400°C and withstand pressures in excess of 25,000psi, (1,700KPa). Once the initial run is approved by the customer the mould is heat treated.

The mould is loaded into the moulding machine. Plastic granules are mixed with a colouring agent and melted in the barrel of the machine. The mould is clamped shut by the machine. The plastic is then injected at high pressure into a mould. Coolant is supplied to the mould and once sufficiently cool the mould is opened. The product is then ejected.

The computer controlled cycle automatically starts again.

You will find more detail by following the links to the left.

Lamnei Plastics has endeavoured to provide correct and up to date information on this site. Due to moulding processes products may vary from the drawing slightly. Please contact us if you would like any of the information confirmed.

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