Gastrate-type semi-trailer refers to the semi trailer installed with fence structure in the loading part, typically mainly used for the transportation of agricultural and sideline products and additional light bubble goods, but also one of the transportation tools commonly used by the consignment station and the express company. In order to adapt to the transportation of different goods, in recent years, the types, structure and Semi Trailer price have been continuously improved, and the semi trailer is even called "all-inclusive oil" by insiders, which shows the wide range of its application.
Thus, at present domestic connecting semi trailer can be divided into several categories?
1, single and double layer.
These two kinds of grille semi trailers are relatively more common, is also the earliest grille structure. The height from the bottom plate of single-layer grate to the top of grate is typically within 1800mm, and the height of double-layer grate is above 1800mm.
These two kinds of grille semi trailers are mainly used for long-distance transportation, and the types of goods loaded are mainly agricultural and sideline-products, steel, and light foam goods of large volume.
2. Tall locking rod and short locking rod.
The tall lock bar grille semi trailer is developed on the basis of the early coal transportation van semi trailer. Its top is open, easy to load; All sides are closed with canvas, which is similar to a van in function. Typically, when the length of the body is over 11m, three pairs of doors are designed on each side; when the length of the body is below 11m, two pairs of doors are designed on each side. When the side door is completely opened, its size can meet the loading and unloading requirements of construction machinery. The goods transported by this model are mainly coal, sand and stone.
Compared with the tall locking rod, the semi-trailer with short locking rod has no side circumference on the top, and the locking rod is shorter. The height from the bottom plate to the top of the grille is typically not higher than 1800mm. Because there is no upper side of the fence, its anti - rising ability is poor. In addition to the transportation of coal, sand and stone, the semi truck can also carry out lengthy-distance logistics transportation.
3, straight beam and gooseneck.
Commonly known as "straight plate", straight beam is mostly used for bulk cargo transportation, such as coal, grain, sand and stone, etc., which is relatively convenient to load and unload.
Gooseneck girder is commonly known as a "tall and low board". The height difference between the bottom plate and gooseneck is usually about 200mm. Compared with the straight beam structure, the loading space is larger and the center of gravity of the cargo is lower. The production process of steep and low plate grid car is more complex than that of straight plate grid car, and the price of the same configuration is typically about 1000-2000 yuan more costly.
In recent ten years, the barrel-type semi-trailer has achieved rapid development in China, which mainly benefits from its strong specialization, large loading capacity, swift transportation, convenient disassembly, wide use, low investment cost advantages.
Especially with the increase of overloading, lightweight models are more and more popular among owners. Compared with the van semi-trailer, the reassembly mass of the bar semi-trailer can be 2t-3t lighter. The standard 13m bar semi-trailer weight is about 6t-6.5t, which has obvious advantages in the field of energy conservation and environmental protection, so it is gradually replacing the van semi-trailer.
In addition, in terms of the types of goods transported, in addition to vegetables, fruits, clothes, electrical appliances, steel and other light foam goods, coal, sand and stone materials, tiny engineering equipment can be used to complete transportation, in the electric power engineering and communication engineering and other fields also play a very huge role.