1. According to whether the shelf is fixed or movable, it can be divided into:
(1) Fixed shelf: Fixed shelf can be subdivided into shelf type, tray type, straight-through type, gravity type, press-in type, loft type, steel structure platform type, cantilever type, mobile type, drawer type and bracket type shelf, etc.
(2) Mobile shelves: Mobile shelves can be subdivided into mobile shelves and rotating shelves, of which mobile shelves can be subdivided into light and medium-sized mobile shelves (also called dense shelves, divided into manual and electric), heavy-duty pallet mobile shelves, rotating The shelves can be subdivided into horizontal rotating shelves and heavy direct rotating shelves.
2. According to whether the overall structure of the shelf is welded or assembled, it can be divided into:
(1) Welding shelves
(2) Assemble the shelves. Currently, assembly shelves are mainly used in China.
3. According to the connection between the shelf and the warehouse building structure, it can be divided into:
(1), the rack-in-one shelf. The shelf and the roof of the building form an inseparable whole, the roof load is directly supported by the shelf columns, and the building envelope (wall) structure is installed on the columns on both sides.
(2) Separate structural shelves. Shelf and building are two independent systems, and there is no direct connection between them.
4. According to the carrying capacity of each shelf, it can be roughly divided into:
(1) Light-duty shelves: The load-bearing capacity of each layer does not exceed 200 kg.
(2) Medium-sized shelves: each layer bears 200~500 kg.
(3), heavy-duty shelves: each layer load is more than 500 kg.
5. According to the height of the shelf, it is divided into
(1), low shelf: height is less than 5 meters.
(2) High shelf: 5~12m high.
(3), ultra-high shelves: more than 12 meters.