The hot runner system can be separated in different components.
The area, where the melt is divided into the different hot runner gates, is called manifold.
For molds with multiple cavities, a homogeneous melt temperature and pressure distribution are necessary.
Therefore, the manifold should be preferably symmetrical.

Manifold in Plastic Industry

Hot Runner: Sectional view of the green displayed manifold of the hot runner system.

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This glossary of plastic industry is provided by PLEXPERT Canada Inc.