Layered cooling conveyor system for Meat Doner Chicken Doner cooling freezing is the system preferred by companies producing Doner, and is designed and produced according to the desired size and number of layers in our product range. The doner kebabs cut automatically by the Doner Robot are transferred to the multi-storey cooling conveyor in the freezer room with the pre-treatment belt and the z conveyor before the cold room. The cooked doner enters at +50 degrees and comes out at -5 degrees or 0 degrees in a short time of approximately 10 minutes. Afterwards, it was conveyed to the packaging machine with the z conveyor.