According to the material, use, table top, forklifting method and structure of the forklift, there are various types of pallets. Especially in some occasions requiring fast operation, due to the high efficiency, safety and stability of pallet operations, various countries have developed a variety of special pallets. Such as flat glass pallets, tire trays, long-size pallets and special pallets for oil drums.
It is precisely because of the wide variety of trays, it has a wide range of applicability and its versatility. It is centrally located in the efficiency of various logistics links such as handling, storage, transportation and packaging, and has a very important function of connection. Although the tray is only a small appliance, its size is the core of the package size, the compartment size, and the size of the container unit. Only by the tray size as the standard, the packaging specifications, truck compartments, train compartments, container boxes and other supporting specifications and serialization specifications are the best to reflect the rationality and efficiency of handling, storage, transportation and packaging operations. In addition to this, the size of the pallet also relates to the size of the container unit. The size of the container unit also refers to the size of the packaging unit, truck compartments, railway wagons, warehouse passages and shelf sizes, and even the logistics infrastructure, such as the construction structure, loading and unloading of cargo handling stations such as railway stations, ports, terminals, etc. The standard size of the handling equipment. Therefore, in a certain sense, the standardization of pallets is not only the premise of pallet leasing, pallet circulation and recycling, but also the decisive factor for mechanization and automation of loading, unloading, packaging, transportation and storage operations. Without the uniform size of the pallets and the serialization standards of related facilities, equipment, devices and tools based on pallets, it is only possible to rationalize the local logistics and it is difficult to rationalize the overall logistics. Because of this, it is natural to become the common aspiration of the logistics industry to unify the specifications of pallets to maximize logistics costs.
Despite this, because the standard of pallet specifications affects the economic interests of different regions and groups of countries, the balance of interests on the pallet issue is almost impossible to achieve in a short period of time. Some pallet specifications that have been implemented in some regions and countries have been It is impossible to compromise and conquer each other. In this way, the ISO uniform global intermodal pallet specifications are very difficult, and can only be implemented in the relevant regions and countries, 1 200 mm × l 000 mm, 1 200 mm × 800 mm, l 219 mm × l 016 mm (ie 48 inches × 40) The specifications of the six types of pallets, such as inches, l 140 mm × l 140 mm, l 100 mm × l 100 mm and 1067 mm × l067 mm, are in a compatible and inclusive manner in ISO 6780, "Main dimensions and tolerances of intermodal universal flat pallets". The specifications of the six types of pallets are juxtaposed as the global standard.