Abstract: The invention relates to a sliding device for a palletizing device for stacking of filled sacks to a sack stacking, comprising a sliding area and a sliding table assembled beneath the sliding area and a slider for sliding of the sacks from the sliding area to the sliding table, wherein the sliding area comprises at least a structure section with a three dimensional surface structure for the reduction of the friction during sliding of the sacks.

Abstract: The invention relates to a device for the separation of stacked objects, the device comprising a stack bearing area, which is formed by a grid of rollers, travelling along the bottom area of the stack, whereby the rollers of the grid of rollers are positioned at an angle relative to the roller grid's direction of motion, and the device comprising a suction element and a conveyor, which reaches under the stack surface, in order to take away the flat objects separated from the stack. The invention provides an arrangment that automatically sets the rollers of the grid of rollers into self-rotation.