1. Introduction of Heavy-duty Shelf
Heavy-duty shelves, also known as beam shelves, or cargo shelves, belong to pallet shelves, and are the most common form of shelves in various domestic warehousing shelf systems. The fully assembled structure in the form of column sheet and cross beam is concise and effective. According to the characteristics of storage unit assembly equipment, such as: partition, steel layer (wood layer), wire mesh layer, storage cage guide rail, oil drum rack and other functional accessories can be installed. It can satisfy the storage of goods in the form of different unit assembly equipment.
Overview of heavy shelf is the most commonly used shelf, each floor load more than 500 kg, called heavy shelf. Heavy shelves have good picking efficiency and can store heavy goods, but the storage density is low. Heavy shelf section
Heavy shelves are widely used in manufacturing, third-party logistics and distribution centers. They are not only suitable for multi-variety and small-batch goods, but also for small-variety and large-batch goods. Such shelves are mostly used in high-level warehouses and super-high-level warehouses (such shelves are mostly used in automated three-dimensional warehouses).

2. Main Characteristics of Heavy-duty Shelf
1. Usually the goods are stored on the shelf after being packed by pallets, storage cages and other units. The load of each unit is generally less than 4000kg, and two units are usually placed in each layer.
2. It is one of the most common and widely used shelves, suitable for most warehouses or products.
3. It has 100% arbitrary picking characteristics. Handling machinery such as forklift trucks can reach any cargo location for storage operation, storage operation is convenient and fast!
4. Storage by mechanical handling equipment.
5. The unit shelf span is generally less than 4 m, the depth is less than 1.5 m, the shelf height of low and high warehouses is generally less than 12 m, and the shelf height of super high warehouses is generally less than 30 m (such warehouses are basically automated warehouses, and the total shelf height is composed of several columns within 12 m).
6. The height of each layer can be freely adjusted by an integer multiple of 75mm.
Heavy-duty (cross-beam type) racks are generally made of cold-rolled profiled steel. The columns are formed by punching diamond holes on the surface of 80 (90) X60 (70) _-shaped steel. The crossbeams are made of 80x50-100x50-120x50-140x50-160x50 embracing welded beams connected with hangers. Trays are generally used instead of laminates to facilitate forklift handling. Layer load 1 ton to 5 tons design, surface electrostatic spraying, waterproof, anti-rust and anti-corrosion ability, high safety factor, plug-in combination, no need for screw and welding, assembly is very convenient, make full use of space area, provide storage capacity. The heavy-duty shelf of the editing section is assembled by pillars, beams, crossbraces, diagonal braces and self-locking bolts, which can effectively prevent the instability of the shelf caused by loosening bolts; the beams adopt special cold-rolled P-shaped closed beams; the structure has the characteristics of simple and reliable, light weight, strong bearing capacity and low cost; the pillars are connected with the pillars with special design safety pins to ensure the crossbeams. Under the impact of external force, the laminates will not fall off; the laminates adopt strip laminates made internationally, which have the characteristics of strong bearing capacity, wear resistance, simple replacement and low maintenance cost.

3. Installation Method of Heavy-duty Shelf
Firstly, the transverse tension (brace) and the cable-stayed (brace) are installed on the column by screw.
Schematic diagram for installation of heavy shelves
The assembled two pillar pieces (one pillar piece = two pillars + several cross-pulling + several cable-pulling) are erected on the ground. The distance between the two pillars is adjusted to the length of the beam and then the cross-beam is installed. When installing the auxiliary frame, it is also necessary to install the column sheet first, and then adjust the distance between the installed column sheet and one side of the main frame to the length of the cross beam and then install the cross beam.
Quantity of cross-stayed: Column length: 1000-1200mm one cable-stayed, two cross-stayed columns: 1300-2200mm two cable-stayed, two or three cross-stayed columns: 2300-3200mm three cable-stayed, two or three cross-stayed columns: 3300-4200mm four cable-stayed, two or three cross-stayed columns: 4300-5200mm five cable-stayed, two or three cross-stayed columns, the number of cable-stayed The following diagram. Generally speaking, the calculation method is one cable-stayed per 600 mm, one cable-stayed at the top and one cable-stayed at the bottom, and one more cable-stayed at the top can be added appropriately. Number of cross braces

4. Classification of heavy shelves
Heavy shelves: beam shelves; heavy pallet shelves; narrow lane pallet shelves; heavy storage logistics shelves; mobile heavy shelves; pull-out shelves, etc.