Injection molding machine

The person designing the mold chooses whether the mold uses a cold runner system or a hot runner system to carry the plastic and fillers from the injection unit to the cavities.

[2] Hydraulic machines, although not nearly as precise, are the predominant type in most of the world, with the exception of Japan.

If the mold partially opens up, it will create flashing in the plastic product.

The electric press, also known as Electric Machine Technology (EMT), reduces operation costs by cutting energy consumption and also addresses some of the environmental concerns surrounding the hydraulic press.

Electric presses have been shown to be quieter, faster, and have a higher accuracy, however the machines are more expensive.