Stops precise one or more accumulated work piece pallets at a defined stop plate of the work piece pallet in conveyor systems (for example Bosh Rexroth TS2). Upper and lower position of the stop plate can be detected by inductive or electronic proximity switch. The lowering speed or the start-up of the stop pallet in its initial positioning can be set up by using a throttle (optional). Therefore, the separating function has a very low noise level. Accessories can be selected as required.