Semi-trailer large gooseneck and small gooseneck

In the freight industry, gooseneck semi-trailers are widely used and are suitable for transportation of various mechanical equipment, large objects, road construction equipment, large tanks, power station equipment and various steel materials.

The gooseneck semi-trailer generally has a gooseneck in the front, a cargo platform in the middle, and a wheel frame in the rear. There are no fences around it. From the structural point of view, it can be mainly divided into flat type, concave beam type and tire exposed type.

Compared with ordinary semi-trailers, the gooseneck semi-trailer can lower the center of gravity of the vehicle, improve the stability of the vehicle, and the passability on the height-limited road section.

When buying a car, people often hear business people say "big gooseneck" and "little gooseneck". So how do these two semi-trailers differ?

In fact, it is mainly distinguished from the height of the gooseneck. Generally speaking, the height difference between the gooseneck and the cargo platform of a large gooseneck semi-trailer is > 300 mm, and the height of the cargo platform is ≤ 1300 mm; the height difference between the gooseneck and the cargo platform of a small gooseneck semi-trailer is relatively smaller, and the cargo platform height is also relatively higher.

At present, the relevant departments are constantly strengthening the control of over-limit and overloading. Even a container semi-trailer cannot exceed 4m in height. From this point of view, the large gooseneck semi-trailer can better reduce the height and center of gravity of the cargo platform, which solves the problem of super-high vehicles without exceeding the limit. At the same time, the center of gravity is stable, which is conducive to driving safety.

It is worth noting that the gooseneck is not allowed to load goods on the gooseneck of the semi-trailer. This is an express regulation of the Ministry of Industry and Information Technology, and car owners must strictly abide by it to avoid fines or deductions.

Some car owners asked: Can gooseneck semi-trailers transport general cargo? This problem will be analyzed from the model of the gooseneck semi-trailer.

Under normal circumstances, the gooseneck structure mainly exists in low-bed semi-trailers, special skeleton vehicles for container transport and some vehicle transport semi-trailers (car carriers).

If it is a low-bed semi-trailer or a car carrier, it must not be able to transport general cargo, because these two types of semi-trailers are special-purpose vehicles, and the low-bed semi-trailer is dedicated to transporting "large and non-disassembled" goods. Carriage vehicles are used to transport passenger vehicles, and it is illegal to transport general cargo according to regulations.

If it is a skeleton-type gooseneck semi-trailer that is specially used to transport containers, then it is no problem to transport general cargo, because for container transport semi-trailers, the container belongs to the category of cargo, not the body structure, and it is completely possible to load general cargo in the container.

Gooseneck semi-trailers have certain particularities in the application field, and their accessories are also different from ordinary semi-trailers. For example, the rear axle and gooseneck semi-trailer cargo platform are small in height, and the selected trailer axle should also meet the characteristics of high load capacity and low center of gravity. The low-bed trailer axles produced by DARO Group are specially made for gooseneck semi-trailers. Not only is the height from the ground significantly smaller than that of other trailer axles, but the wall thickness of the axle body is also higher than that of ordinary trailer axles. In addition, the brake drum, Brake pads, bearings, bolts, etc. are also dedicated to heavy-duty semi-trailers, and the indicators such as strength, toughness, and wear resistance are also higher.