Injection Unit » Why is the Injection Unit Important?

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In this section the basic components of the injection end of an injection molding machine will be identified and discussed. This includes the hopper, the barrel, the screw, the non-return assembly, and the nozzle.

The function of the injection unit of the machine is to feed and melt material to a pre-determined shot size and then inject it into a mold where a part is formed. The terminology and the function of each component used in the injection unit will be discussed. This information will help you understand the injection end components.


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Glossary of Terms