What is the development prospect of warehouse grid type semi trailer?

Warehouse grid type semi-trailer refers to the loading part of the installation of the fence structure of the semi-trailer, generally used for agricultural and sideline products and other light bubble goods transport, is one of the transport stations, express companies commonly used. In order to adapt to the transportation of different goods, in recent years, the type and structure of the warehouse grid semi trailer is also constantly improving, and it is even called "universal gold oil" by the industry, which shows the wide range of its application.

So, the current domestic grid semi trailer can be divided into several categories?

1. Single layer and double layer.

These two grid semi-trailers are relatively common and are the earliest grid structures. The height of the bottom plate to the top of the single layer grid is generally within 1800mm, and the height of the double layer grid is above 1800mm.

These two kinds of warehouse grid semi-trailer is mainly used for long-distance transportation, loading cargo types are mainly agricultural and sideline products, steel, large volume of light bubble goods, etc.

2. Long lock rod and short lock rod.

The long lock bar boom semi-trailer is developed on the basis of the early coal transport van semi-trailer, its top is open, easy to load; The four sides are closed with canvas, which is similar to the van in function. General body length in more than 11m, each side design 3 pairs of opposite doors; When the body length is less than 11m, each side of the design of 2 pairs of doors. When the side door is fully opened, its size can meet the loading and unloading requirements of construction machinery. This type of transportation of goods to coal, gravel and other goods.

Compared with the long lock bar, the short lock bar has no side circumference at the top, and the lock bar is shorter. The height between the bottom plate and the top of the warehouse grid is generally no higher than 1800mm. Because there is no top perimeter, the anti - rise ability of its warehouse grid is poor. In addition to the transportation of coal, sand and stone, the warehouse grid semi-trailer can also carry out long-distance logistics transportation.

3. Straight beam type and goose neck type.

Straight beam commonly known as "straight plate", currently mostly used for bulk cargo transport, such as coal, grain, sand and stone, etc., loading and unloading is relatively convenient.

Gooseneck girder commonly known as "high and low plate", the bottom plate and gooseneck height difference is generally about 200mm, relatively straight beam structure loading space is larger, the center of gravity of goods is lower, suitable for the density of relatively low general cargo transport and road curvature of large mountain coal transport. The high and low plate grid car production process is more complex than the straight plate grid car, the general price of the same configuration is about 1000-2000 yuan expensive.

In the last ten years, the warehouse grid type semi trailer has made rapid development in China, which mainly benefits from its strong specialization, large loading capacity, fast transportation, convenient disassembly, wide use, low investment cost advantages.

Especially with the increase of the control over the strength, lightweight models are more and more popular with owners, compared with van semi trailer reconditioning mass can light 2t-3t, the standard 13m grid weight in 6t-6.5t, in the field of energy saving and environmental protection, obvious advantages, so it is gradually replacing the van semi-trailer.

In addition, in the type of transportation of goods, in addition to vegetables, fruits, clothes, electrical appliances, steel and other light bubble goods, coal, sand and stone, small engineering equipment can be used to complete the transportation of warehouse grid semi-trailer, in the field of power engineering and communication engineering has also played a very big role.

But with the continuous tightening of relevant laws and regulations, the development challenges facing the warehouse grid semi-trailer are also increasing. At present, it can be mainly divided into the following points:

1. The type of goods transported is limited.

According to GB 1589-2016 "Road Vehicle External profile size, axle load and mass limits", the warehouse grid semi-trailer "is installed on the top and the side fence fixed, non-removable top grid rod", which makes the warehouse grid disassembly and assembly less convenient than before to a certain extent.

In addition, according to the technical requirements of the industry, the interior of the warehouse grid type semi trailer is not allowed with a pull brace. Due to the large size of the height from the bottom of the box to the top of the box, the overall strength of the car is weak. If there is no pull pendulum inside the box, there will be serious box swelling phenomenon when loading goods, resulting in the bending and deformation of the box and column. As a result, goods such as bulk grain, coal, sand and gravel, which are easy to fill containers, cannot be transported.

2. The cost of car purchase may increase by more than 50%.

All the time, the warehouse grid type semi trailer is relatively low technology content, relatively simple to manufacture, so its price in the industry is also at the lower level of the medium.

GB7258-2017 motor vehicle operation safety technical conditions after the introduction of the national standard, from the structure, safety, technology and other aspects of the warehouse fence semi-trailer put forward new requirements, such as must be installed air suspension, disc brakes, automatic adjusting arm, anti-splash device, to a certain extent directly led to the increase in the cost of the car, the increase can even reach more than 50%.

3. Parts of the market have been replaced by other forms of transport.

With the progress of society, people's requirements for logistics transportation are also increasing, and the phenomenon of "special car special purpose" is more and more common. For example, in the express transportation market, in addition to increasing the volume of larger, more secure van semi-trailer, but also add high-speed rail transportation; Another example is coal transportation. The transportation mode based on road has been changed to multi-modal transportation such as rail and water.

In addition, the emergence of new models has also had a certain adverse impact on the development of warehouse grid semi-trailer, such as soft curtain trailer, side curtain car, close to the use of warehouse grid semi-trailer scene, but due to the subtle differences in size and structure, also lead to a lot of goods can not be transported, as for whether it can become a replacement model of warehouse grid semi-trailer, still need to be verified by the market.

From another point of view, the completion of the technology upgrade of the warehouse grid semi-trailer, will gradually move toward standardization, help to monitor the quality of products, but also to improve the industry threshold, the range of goods may be further widened. DARO Heavy Industry Group is a focus on the production of trailer axle enterprises, so far has accumulated 20 years of industry experience, quality and reputation has been widely recognized by the market, a variety of complete models, can meet the needs of different owners, tailored for heavy duty trailer, is a typical representative of the domestic cost-effective trailer axle.