Trailer is the backbone of the current logistics and transportation industry. Special large cargo transportation trailer refers to the trailer specialized in transporting out of gauge and heavy goods. Due to its huge volume, heavy and indivisible goods, it exceeds the ordinary truck in quality, and even exceeds the specified limits of highway alignment and bridge and culvert capacity. It needs to bypass, reconstruct or even remove the obstacles encountered.

In general, special large cargo transport trailers can be divided into three different overrun levels:

1. Super long and large pieces.

Super long and large pieces are the least difficult to transport among the three over limit levels, generally as long as they do not affect the turning of vehicles. If the extra long part affects the turning, on the premise of ensuring the rigidity of the goods, the hydraulic support arm can be used to erect or obliquely erect it. With the cooperation of the team, you can reach the destination through most of the curves and reasonable route planning.

2. Extra wide and large pieces.

The transportation difficulty of ultra wide and large pieces is the second. As long as the road width allows, there is basically no problem driving. The most afraid thing is to encounter the upper limit wide pole or toll station. In contrast, the width limiting pole may be able to bypass, but there is generally no way to bypass the toll station. Of course, if it is a national emergency project, you may choose to dismantle the toll station.

3. Super high and overweight large pieces.

Super high large pieces have high height and high center of gravity, which is one of the most dangerous large pieces of transportation. During transportation, a lot of steel wire ropes and shrink hinges are generally used to stabilize the goods to ensure transportation safety.

Overweight and bulky goods are even more complicated. The power and torque of trailers are limited. This kind of transportation of hundreds of tons often adopts a chassis with more powerful power performance, equipped with a remote control driving system, and then reduces the pressure of goods on the ground through hundreds of tires. The maximum speed will not exceed 10km / h. in the middle, the technical condition and wear state of vehicles should be checked frequently. Sometimes it takes several months or even half a year to transport overweight and large pieces at one time, which can be seen from the difficulty.

So, what are the common types of special large cargo transport trailers?

1. Classification by Trailer length:

It can be divided into 9.5m, 13m, 15m, 16m, 16.5m, 17.5m, 18m, 20m and 22m.

2. Classification by trailer type:

It can be divided into flat car, ladder car and groove car.

3. Classification by trailer axle:

It can be divided into three lines and three axes, three lines and six axes, four lines and eight axes, five lines and ten axes and six lines and twelve axes.

Because the goods carried by the special large cargo transport trailer are special, the requirements for the performance of the vehicle are higher, especially the chassis axle, which directly determines the load-bearing capacity of the trailer. The products with reliable quality and strict stiffness and strength must be selected. Darong group is an enterprise specializing in the R & D and production of commercial axles in Liangshan, Shandong. It has been deeply cultivated in the axle industry for 20 years and is famous for its high cost performance. All axles produced by Darong have gone through 15 high-precision processes, and the products have excellent comprehensive mechanical properties such as strength, toughness and ductility. In addition to the common disc axle, American axle, German axle, concave axle, special axle and three wire six axle axle axle in the market, they can also customize special axle according to the actual needs of customers to meet the diversified use needs of car owners.