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Why is the Injection Unit Important?

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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