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Classification of semi-trailers

Aug 03, 2026

Low-Flatbed Semi-Trailers

Low-flatbed semi-trailers have no sideboards on the load side and are widely used, primarily for medium- and long-distance freight transport. The series of semi-trailers features a through-beam structure with straight, gooseneck-type longitudinal beams. Web height ranges from 400mm to 550mm. The longitudinal beams are welded using automatic submerged arc welding, and the frame undergoes shot peening. Crossbeams are inserted into the longitudinal beams and welded as a whole. The suspension consists of tandem leaf springs and suspension supports, resulting in a rational structure with high rigidity and strength, used to support loads and absorb impacts. Low-flatbed semi-trailers are typically used to transport heavy vehicles (such as tractors, buses, and special-purpose vehicles), rail vehicles, mining machinery, forestry machinery, agricultural machinery (such as excavators, bulldozers, loaders, pavers, and cranes), and other heavy-duty goods. The lower the center of gravity, the better the stability and safety, and the stronger the ability to transport oversized cargo and pass overhead obstacles.


Container Semi-Trailers

Container semi-trailers are semi-trailers with a container structure for the load side. Mainly used in logistics systems with ships, ports, shipping routes, highways, transfer stations, bridges, tunnels, and multimodal transport. 1. Specifically designed for transporting various types of containers. Capable of long-term, repeated use, and possessing sufficient strength. 2. When using containers for cargo transshipment, goods can be loaded directly at the shipper's warehouse and unloaded at the consignee's warehouse. When changing vehicles or ships en route, there is no need to remove the goods from the container for reloading. 3. Enables rapid loading and unloading, and allows for convenient and direct transfer from one mode of transport to another. 4. Facilitates the full loading and unloading of goods, meeting individual customer needs. Tooling is guaranteed according to customer requirements, ensuring stable quality and reliable performance.