Common cabinet colors include white, black, and gray. (Among them, there are many types, such as orange pattern, fine sand pattern, etc.); Cabinets are classified by material, including aluminum profile cabinets, cold-rolled steel plate cabinets, and hot-rolled steel plate cabinets; According to the processing technology, there are nine fold profile cabinets and sixteen fold cabinets.

The type of board, coating material, and processing technology determine the stability of the cabinet. Generally, its length specifications are 600800mm, width specifications are 6008001000mm, and height specifications are 42U, 36U, and 24U. The cabinets used in the early days were mostly made of castings or angle steel connected or welded into cabinet frames with screws, rivets, and then covered with thin steel plates (doors). This type of cabinet is bulky, bulky, and has a simple appearance, and has been phased out. With the use of transistors, integrated circuits, and the ultra miniaturization of various components, the structure of cabinets is also developing towards miniaturization and building blocks. The cabinet has evolved from a full panel structure in the past to a plug-in box and plug-in structure with a certain size series. The assembly and arrangement of plug-in boxes and plugins can be divided into two types: horizontal arrangement and vertical arrangement. The materials commonly used for cabinets include thin steel plates, steel profiles with various cross-sectional shapes, aluminum profiles, and various engineering plastics. The frame of the cabinet is not only connected by welding and screws, but also by adhesive technology.

Cabinets can be divided into two basic structures: profiles and thin plates, depending on the load-bearing capacity of their components, materials, and manufacturing processes.

① Profile structure cabinet: There are two types of cabinets: steel profile cabinets and aluminum profile cabinets. The steel cabinet is composed of special-shaped seamless steel pipes as columns. This cabinet has good rigidity and strength, making it suitable for heavy equipment. Aluminum profile cabinets composed of aluminum alloy profiles have certain rigidity and strength, and are suitable for general or lightweight equipment. This type of cabinet is lightweight, requires less processing, has a beautiful appearance, and is widely used.

② Thin plate structure cabinet: A full plate cabinet, with its side plate formed by bending a single steel plate. This cabinet has good rigidity and strength, and is suitable for heavy or general equipment. However, due to the non removable side panels, assembly and maintenance are inconvenient. The structure of the bent plate column cabinet is similar to that of the profile cabinet, and the columns are bent from steel plates. This type of cabinet has a certain degree of rigidity and strength, and is suitable for general equipment.

The cabinet is also equipped with cabinet accessories as needed. Its main accessories include fixed or extendable guide rails, locking devices, hinges, cable trays, cable racks, and shielding comb shaped spring plates