Injection Moulding Process

Here at Herga, we use injection moulding to manufacture lots of products. In fact almost all of our finished products contain at least one component which has been manufactured in our mould shop using injection moulding.

The Injection Moulding Process.

The plastic used in injection moulding starts off as granules or powder. This is added to the injection moulding machine which melts it down to a liquid.
The liquid plastic can then be injected into a plastic mould – hence the name injection moulding.  The plastic is injected in very tightly so there are no air bubbles and the plastic fills the whole mould.
Once the mould is full it is cooled down making the plastic harden quickly. Once the plastic reaches an optimum temperature the mould opens releasing the product.

Advantages of using Injection Moulding

Using injection moulding has many advantages;

• Quick
•  Efficient
• Ability to produce many product exactly the same
• Very little waste

Injection Moulding and Herga

Almost all of the products we manufacture use injection moulding for at least one component.

• Footswitches: bases, covers and internal parts
• Hand controls:  bodies and buttons
• Bellows:  Top and base
• Air switches: Housings and internal parts

Part of our quality standards for our plastics include the UL 508 Standard. This standard is to do with the flammability of the plastics. The plastic must be able to melt but not catch on fire. To be able to distribute our products into America and Canada, our plastics must be UL approved and although it is not an official requirement for Europe, a lot of our European customers would prefer to have this standard.
We can offer different coloured products which have been injection moulded. We use different kinds of granules for different products to create the desired colour, some of the time the granules themselves are coloured and other times, we add a dye after they have been melted.
Take a look around our website to see all of our products, many of which have used some aspect of injection moulding in the manufacturing process. If you have questions about any of our products please contact us.