Heavy shelves, also known as cross-beam shelves, or positional shelves, belong to pallet shelves, which is the most common form of shelves in various domestic storage 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.

1. Brief introduction of heavy shelves
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 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.

3. Heavy shelf structure
Heavy-duty shelves are assembled by pillars, crossbeams, cross braces, diagonal braces and self-locking bolts, which can effectively prevent the instability of the shelves caused by loosening bolts; the beams are made of special cold-rolled P-shaped closed beams; the structure is simple and reliable, light in weight, strong in bearing capacity and low in cost; the pillars are connected with the pillars with special safety pins designed to ensure that the beams are not subjected to external impact. The laminates are made of strip laminates made in the world, which have the characteristics of strong bearing capacity, wear resistance, simple replacement and low maintenance cost.