Empty pallets are set up on a chain conveyor. They are then transported to traverse car one. This truck can then deliver the pallets into the tractor using liftable, extendable forks. A tractor with full pallets can be unloaded through the retractable fork carriage two. These pallets can then be transported further on the chain conveyors, where they can be removed at the end by a forklift truck. The products can also be transported through a refrigerated freezer tunnel.