Stacker is a device determined for assembling one layer of containers intended for palletization.

Individual containers are moved in rows to the calculating sensors. The set number of containers runs between the rail. The pushing mechanism is pushing the rows until the layer for palletization is complete. After vacating the pallet spot the layer separator releases the whole layer for palletization. When the whole layer departs the layer separator lowers and the Stacker continues the automatic cycle.

The capacity of the push bar is determined with the number of rows for one push.