Injection molding

Injection moulding is an industrial manufacturing process in which thermoplastics (e.g. polycarbonate, ABS) are injected into a mould under heat to produce components in high volumes. After cooling, the plastic solidifies in the desired shape.

How it works

The plastic is melted in a heated cylinder and then injected under pressure into a moulding tool via a nozzle. As soon as the material has cooled, the finished component is ejected and the process is repeated for the next part.

Typical materials

• Polycarbonate, ABS, polyamide, POM and other thermoplastics.
• Thermoplastic elastomers (TPE) for flexible components.

Fields of application

Injection moulding is suitable for a wide range of products, from automotive components (such as headlight housings) to casings for electrical appliances, household items and consumer goods.

Advantages and disadvantages

• Advantages: high productivity, short cycle times, consistent quality in large quantities.
• Disadvantages: high initial investment for the tool; design changes require expensive adjustments.