With the continuous strengthening of governance in all aspects of the highway transportation industry, the word "middle axle trailer" appears more and more frequently in the sight of car owners, and even the middle axle trailer model is added in gb1589. Some car owners may want to ask: what model is the center axle trailer?

Generally speaking, the center axle trailer is a trailer whose axle is located in the center of gravity of the vehicle. Looking at the model of the center axle trailer alone, some old drivers even think that the center axle trailer looks like a full trailer. In fact, the difference between the two is quite obvious:

1. The axle of the center axle trailer is located in the center of gravity of the vehicle body and cannot support its own weight independently when it is separated from the tractor; The trailer can stand stably even if it is not supported by the front and rear axles.

2. The traction device of the center axle trailer cannot move up and down; On the contrary, the traction device of full trailer can swing up and down or left and right.

3. The center axle trailer is mainly composed of carriage, axle and traction device without bogie; The full trailer is composed of carriage, axle, bogie and traction device, which can turn with the driving direction of the tractor.

4. The traction hook connected between the center axle trailer and the main vehicle is located below the frame and is indirectly connected with the frame; The full trailer is connected with the main vehicle through the traction hook installed on the main vehicle frame.

5. Compared with the full trailer, the reversing of the center axle trailer is relatively simpler.

Compared with other trailers, the center axle trailer has the advantages of low center of gravity, light weight and simple structure. However, because it is only suitable for high-grade highway, it is relatively more suitable for special line logistics users with fixed goods. In addition, the load of the center axle trailer is relatively stable and the force is relatively simple. It is very suitable to use lightweight materials and lightweight design to achieve greater benefits.

So how is the standard of center axle trailer formulated in China?

According to gb1589 standard, the overall length of the center axle trailer shall not exceed 12M, the width shall not exceed 2.55m and the height shall not exceed 4m; The overall length of the transport train of the center axle vehicle shall not exceed 22m, and the width and height requirements shall be the same as those of the center axle trailer. In terms of the maximum allowable total mass limit, the limit of one axle center axle trailer is 10t, the limit of two axle center axle trailer is 18t, and the limit of three axle center axle trailer is 24t.

With the continuous development of center axle trailers, the current situation of semi trailers in the logistics and transportation industry will also change in the future. Various models will play a role in their respective fields and jointly improve the efficiency of logistics and transportation. Shandong Darong group is one of the first batch of enterprises to mass produce integrated axles in China. Over the past 20 years, it has focused on the production and sales of trailer axles / axles. With reliable quality and stable performance, it has become a fixed cooperative brand for many trailer manufacturers, logistics enterprises and retail investors. With ultra-high cost performance, it helps car owners reduce the cost of comprehensive vehicles and achieve energy conservation and emission reduction.