In the injection molding machine, there are two platens, which belong to the clamping unit.
One is on the injection side and the other one on the ejection side, latter is movable mounted.
The mold is attached at the platens over the existing drill-holes by the means of fastening screws, mounting clutch or quick release systems.

Platen in Plastic Industry

Injection Molding Machine: View of the platen on the movable ejection side.

Related topics:

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