(1) Flat tray. The flat tray is almost synonymous with the tray. As long as the tray is mentioned, it is generally referred to as the flat tray because the flat tray has the widest range of use, the largest number of uses, and the best versatility. Flat trays can be subdivided into three types.
1. According to table classification. There are four types: single-sided, single-sided, double-sided, and airfoil;
2. According to the forklift fork
Classification. There are three kinds of one-way fork type, two-way fork type, four-way fork type.
3. According to the material classification. There are five types of wooden flat trays, steel flat trays, plastic flat trays, composite flat trays, and paper trays. According to the results of the preliminary investigation conducted by the Pallet Professional Committee of the China Federation of Logistics and Purchasing in 2011 on a number of domestic pallet manufacturers, pallet use and sales companies, the total number of pallets of various types that China currently owns is approximately 16 million to 200 million. Annual output increases by about 20 million pieces. Among them, about 85% of wooden flat trays, 12% of plastic flat trays, and 3% of steel trays, composite trays, and paper trays. Composite flat trays and plastic trays have a larger proportion of rise.
(2) Column trays. Pallet tray is divided into two types: fixed and detachable. Its basic structure is the four corners of the tray.
There is a steel column, the upper end of the column can be connected with a beam to form a frame type. The main function of the column tray is to use the column to support the weights and stack it up to high; secondly, it can prevent the collapse of the goods placed on the tray during transportation and loading and unloading.
(3) Box trays. Box trays are trays with side plates on all sides. Some boxes have a top plate and some have no top plate. There are three kinds of fixed, folded and removable. There are plate type, grid type, and net type in the surrounding railings. Therefore, the box pallets with fence type are also called cage pallets or storage cages. Box trays have strong protection capabilities to prevent collapse and cargo damage; they can be loaded with special-shaped cargoes that cannot be stably stacked and have a wide range of applications.
(4) Wheeled trays. Wheeled trays have smaller, lower wheels than column trays and box trays. As a result, wheeled pallets have the advantages of being able to move short distances, self-handling, or roll-and-roll type loading and unloading, and have a wide range of uses and strong applicability.
(5) special special trays. Due to the high efficiency, safety and stability of pallet operations, especially in some occasions where fast operations are required, the importance of using pallets is highlighted. Therefore, various countries have developed a variety of special pallets. Here are just a few examples.
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