The Duplex roll ejector chuck combines a mechanical expanding chuck, equipped with new high-gripping jaws, and a pneumatic telescopic piston that is concentric to the mandrel. This allows to remove stuck cores and rolls on every roll stand safely, even in the case of rolls with deformed core.

Duplex eliminates the possibility of damaging the chuck due to the manual intervention of the operator by the use of levers and other tools for the discharge of the blocked roll. Duplex is the ideal solution for roll stands without an existing core ejector system.