Different categories of semi-trailers

Semitrailer Industry Definition

A semitrailer is a trailer in which the axle is located behind the vehicle's center of gravity when the vehicle is evenly loaded. It is equipped with a coupling device that can transmit horizontal or vertical forces to the tractor. It cannot be supported independently. The load needs to be borne by the semi-trailer and the main vehicle. The front half rests on the tractor saddle on the rear section of the tractor, and the bridge behind the tractor bears part of the weight of the trailer. Semi-trailers are mainly used for long-distance and high-grade highway transportation, and occupy an important position in domestic transportation.

Semitrailer Industry Classification

According to the type, semi-trailers include frame trucks, flatbed trucks, vans, low-platform trucks, powder tank trucks, liquid tank trucks and so on. Among them, the flatbed semi-trailer is a kind of semi-trailer without walls and roof. It has a relatively simple structure and strong adaptability. In addition, they can also be divided according to length, such as 20 feet, 40 feet, 9 meters, 12 meters, 18 meters and so on. If divided by the number of axes, there are single-axis, double-axis, three-axis, even ten-axis and so on. In addition, according to different uses, semi-trailers can also be divided into special vehicles, semi-trailer transport dump trucks, fence trucks, tank trucks, dump trucks, vehicle transport vehicles, powder material transport trucks, etc.