Drive-in shelves were also called passage racks, which were not divided by passages but unitary. Used in conjunction with special purpose pallet handling equipment which may require guidance, by electronic wire or by steel rail.

Pallet support rail is punched and roll formed, so it has the character of long inertial distance/strong load capacity.Be used in food industry, chemical industry, clothes industry and freeze warehouse and so on. 

 Picking direction has single and double rows. Single one (near wall) depth is not exceed 6 pallet depth. Double one(middle area can pick goods) depth is better control in 12 pallet depth. This kind system usually not exceed 10 meter high. To fasten it ,not only need the strong structure, but also need to add fix equipment. Goods is better not too big and too weight, usually less than1500kg. the width is not exceed 1.5 meter. And can work in trucks.