There are many types of shelves suitable for dense repositories. The following are some common types:
Gravity shelf: use the gravity of goods to make goods slide along the roller track with a certain slope or onto the track on the shelf, and automatically slide from the inbound end to the outbound end. This kind of shelf has high storage density, can effectively use space, and is suitable for storing a large number of similar goods, such as boxed goods in beverage, food and other industries. The first in first out feature also facilitates the management and inventory of goods.
Shuttle Rack : It is composed of shelves, shuttle trucks and forklifts. The shuttle trucks can run on the rails of the shelves to transport goods to the destination. It can realize high-density storage and is suitable for the storage of goods with large storage capacity and relatively single variety, such as daily necessities and clothing in e-commerce logistics. It can greatly improve the space utilization rate of the warehouse and the storage efficiency of goods.

drive-in rack : Forklift trucks can directly drive into the rack to access goods. The rack structure is simple and the space utilization rate is high. It is applicable to the storage of goods of large batch and few varieties, such as raw materials and finished products of large production enterprises, which can effectively reduce the occupation of forklift access and improve the storage capacity of the warehouse.
Push back shelf: multi-layer shelves are used. The goods are put in from one side of the shelf. The goods are pushed backward in turn by pushing blocks. When storing, the goods behind will push the goods in front backward. When picking up goods, the goods are picked up from the outside to achieve first in and then out. It is applicable to places with limited space but need to store more goods, such as the warehouse of retail enterprises, which can improve the space utilization and storage efficiency of goods to a certain extent.
Mobile shelves: The shelves can be moved on the track by electric or manual drive, and the corresponding shelves can be moved to the aisle position when goods need to be accessed. At ordinary times, the shelves are closely arranged, greatly reducing the occupied area of the aisle and improving the space utilization. It is suitable for storing valuables, small items or items requiring strict management, such as electronic components, instruments, etc.