Polyamide for coolant pipes made by GIT / WIT - Process

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In the beginning of the GIT/WIT process the plastic melt is being injected into the tool cavity. Then gas or water displaces the melt and forms the hollow space.

The most common process option is to push out the melt into over flow cavities:

To avoid regrinding of the spare material, the melt can be – depending on the injection moulding machine – pushed back into the cylinder and reused right afterwards: