Flat dump trucks are common in the transportation of high-density bulk cargoes such as sand and gravel. They are only flat when they go to the door. After they go to the door, a cargo box is added to improve the cargo loading capacity.

Compared with the ordinary standard dump truck, the flat dump truck has a larger loading capacity, so it has also become "one of the main vehicles for overload transportation".

After the revision of GB7258, it is stipulated that the flat plate of flat-plate cargo vehicles should not be designed with pile insertion structures, grooves, container locks and other devices, and the loading parts of flat-plate cargo vehicles and bar-type cargo vehicles should not have lifting functions or adopt dump structures.

That is to say, the flat car can not be installed with locks or hydraulic lifting mechanism without permission after getting on the house. The flat car is a flat car, and the dump truck is a dump truck. The two structures of "flat car" and "dump" cannot appear at the same time. Otherwise, once found, a fine will be imposed.

What are the compliant dump semi-trailers?

1. Dump container semi-trailer

This model is mainly used to transport containers. Its appearance is almost the same as that of the flat dump truck. In fact, the flat dump truck is developed from this model.

The difference is that the chassis of the container semi-trailer is of skeleton structure, while the flat dump truck is of flat structure. Because the regulations only restrict flatbed dump trucks, container dump trucks are still compliant.

2. Standard rear dump semi-trailer

The total length of this type of vehicle is generally about 8-10m, the inner diameter width is about 2.45m, and the outer diameter width can be up to 2.55m, but the height of the fence is only 0.6m, so the maximum volume of the cargo compartment can be up to 14.5m3.

For car owners who are used to flat-panel dump, the loading capacity of this type of car is indeed much smaller, but this type of car can be put on the road in compliance with the regulations and will not face the risk of being investigated like flat-panel dump. In addition, standard load transport can choose tractors with smaller horsepower, which can reduce the cost of comprehensive vehicles to a certain extent.

3. Standard rollover dump semi-trailer

When unloading, the lifting height of the car of the side-overturning type is lower than that of the rear-turning type, so it can reach a maximum length of 13m, a maximum width of 2.55m, and a maximum height of 0.6m. Compared with the standard rear-turning type, its transportation volume is significantly larger. In addition, the lifting height is low, and the stability of unloading will be better.

It is worth noting that in order to meet the market demand, some manufacturers cut the top of the tank body of the lifting powder transport semi-trailer and converted the tail into the style of a dump truck. Such vehicles are also illegal. Whether from the perspective of laws and regulations, safety or the overall environment of the industry, the compliance transport is the trend. The owners must pay attention to follow the general rules of industry development when selecting.

The operating conditions of the dump semi-trailer are complex, and its design, materials, technology, accessories, etc. must be safe and reliable. For example, as the key components of the dump truck, the axle should be selected as far as possible from those brands with independent factories and customized production capacity. It is better to enter the market for a long time. After the full verification of the market, such brands can be used more reliably.