Classification of Semi trailers

Self dumping semi-trailer is suitable for the transportation of bulk and scattered goods such as coal, ore, and construction materials. Self dumping semi trailers can be divided into two categories according to their uses: one category belongs to heavy-duty and ultra heavy self dumping trailers used for non road transportation, mainly responsible for transportation tasks such as large mines and engineering projects, usually used in conjunction with excavators. Another type belongs to the light and medium-sized ordinary dump trailers used for road transportation, mainly responsible for the transportation of loose goods such as sand, gravel, soil, coal, etc., usually used in conjunction with loaders. 1. The carriage adopts the methods of side overturning and rear overturning self dumping, which can effectively improve the transportation efficiency of the loading and unloading machine for transporting bulk and scattered goods. 2. The frame and longitudinal beams of the carriage are welded with high-quality manganese plates, and the cargo box comes in two types: dustpan and rectangular. It has high strength, strong lifting force, good rigidity and toughness, strong bearing capacity, and does not undergo permanent deformation. 3. Exquisite craftsmanship: The main components are processed using advanced equipment, and the longitudinal beams are fully automatic submerged arc welded. The wheel axles and steel plate springs are precisely assembled using assembly machines.
Low flatbed semi-trailer
The low flatbed semi-trailer has no railing on the vehicle body and is widely used, mainly for medium and long-distance freight transportation. The series semi-trailer frame adopts a through beam structure, and the longitudinal beam adopts a straight movable goose neck type. The web height ranges from 400mm to 550mm, the longitudinal beam is welded by automatic submerged arc welding, the frame is shot blasted, and the crossbeam penetrates the longitudinal beam and is welded as a whole. Composed of a series of dry plate springs and suspension supports, the structure is reasonable, with strong rigidity and strength, used to support loads and mitigate impacts. Low flatbed semi trailers are usually used to transport heavy vehicles (such as tractors, buses, specialized vehicles, etc.), rail vehicles, mining machinery, forestry machinery, agricultural machinery (such as excavators, bulldozers, loaders, pavers, cranes, etc.), and other heavy cargo. The lower the center of gravity, the better the stability and safety, and the stronger the ability to transport ultra-high cargo and pass overhead obstacles. The structure and loading of low flatbed semi trailers usually adopt a concave beam (or well type) frame, with the front section of the frame being a goose neck (the traction pin of the goose neck is connected to the traction saddle on the tractor, and the rear end of the goose neck is connected to the semi-trailer frame), the middle section being the cargo platform (the lowest part of the frame), and the rear end being the wheel frame (including the wheels). When loading mechanical equipment onto a low flatbed semi-trailer, it is usually done from the rear end of the semi-trailer, that is, by moving the mechanical equipment from the rear wheel frame or removing the wheels, and then fixing the mechanical equipment onto the semi-trailer. The walking structure of the low flatbed semi-trailer is made of high-strength international steel material, which has a light weight and ensures its ability to resist torsion, earthquake, and bumps, meeting different road bearing capacities.