In the injection mold, the hot runner system is thermally isolated with the help of the air gap.
Due to the acting forces it is necessary to use supports of the hot runner system as connection to the surrounding wall of the mold.
To get a preferably low heat lot, Titanium or ceramic is used as material for the support.
Furthermore, the aim is to keep the support as small as possible, but as big as necessary.
This glossary of plastic industry is provided by PLEXPERT Canada Inc.