This Hytrol conveyor accessory was designed to assist a robotic unit for removal of a wheel-shaped object from the roller conveyor.
The object enters the "zone" and accumulates to the end of the conveyor. The Hytrol EZLogic® sensor activates several cams which move from both sides of the conveyor and centers, in this case a spool. When the object is centered, a robot or other removal device can then remove the spool or similar object from the conveyor.
This concept, with minor modifications, can be used for other applications.
Ref. No. 627379