With the popularity of the light-weight trend of trailers, the voice of aluminum alloy trailers is getting higher and higher. Some people in the industry even call aluminum alloy trailers "the future star of the transportation industry".

With the promulgation and implementation of gb7258-2017, the warehouse gate car has met more stringent technical requirements, which to a certain extent has promoted the rise of side curtain cars. It should be noted that the market share of side curtain cars in Europe is very high, and they are almost the main logistics transportation tools in European countries.

If the aluminum alloy meets the side curtain, will it set off a new wave of car buying in the industry?

Theoretically, the aluminum alloy side curtain semi-trailer combines the advantages of the two models: light weight, more cargo, fuel saving, no cargo picking, high loading and unloading efficiency, etc. the key is not limited by the "mandatory installation of disc brake and air suspension". In addition, the car owner can also save more trouble, and does not need to climb up and down frequently to cover the rain cloth.

This is not true. A car owner in Henan chose an aluminum alloy side curtain hanger when replacing it. Because it was a stock car, the price was 100000 yuan. According to the owner's description, the aluminum alloy side curtain is 13.75m long, 2.55m wide, 4m high, and its dead weight is about 6.6t. According to the total mass limit of the vehicle, the maximum total mass of the three axle semi-trailer is 40t, that is to say, the aluminum alloy side curtain can carry about 33T of goods.

The owner also has his own considerations for replacing such trailers. He thinks that there will be more and more palletized transportation in the future transportation industry. After all, there are fewer and fewer porters now, and young people are more reluctant to engage in this industry. The cost of employing porters is also rising. In addition, many shippers and receivers also require vehicle owners to use cargo pallets, so that they can be directly loaded and unloaded with forklifts and can be stacked high.

The problem that the car owner is considering is actually one of the characteristics of the side curtain car, that is, it is highly dependent on the pallet, which is closely related to the opening of the curtain around the side curtain car. The curtain fabric can be opened, which is convenient for loading and unloading. However, this also leads to the fact that the movable curtain fabric can not help the internal goods to achieve stability. In particular, those less than truckload, department store and green pass are far less fixed than the van type or warehouse rack. Besides, not every logistics park can match pallets at present, and the transportation is also limited. However, according to the idea of vehicle owners mentioned above, if pallet transportation is popular in the future, this can not be called a disadvantage.

In addition to relying on pallets, the side curtain car also has a relatively obvious problem: the goods are not fixed and the support is poor. Although the side curtain car does not pick up goods and can load all kinds of goods, if it shakes or tilts during transportation, the particularly good quality cord fabric can still support the goods, but the ordinary quality cord fabric may be dangerous, especially on the curved and steep road sections, the speed must not be too fast to avoid the goods from being thrown out of the car.

In addition, there is a lot of chaos in the domestic transportation market at the present stage, and the situation of stealing oil and goods in the service area occurs from time to time. I'm afraid that the side curtain vehicles do not have much advantage in this regard. Especially for valuable goods, they dare not use side curtain vehicles for transportation.

From the perspective of aluminum alloy materials, although the theoretical loading capacity of this semi-trailer is about 33T, we need to see that the manufacturing resistance of aluminum alloy is not as good as that of steel structure, which is beyond doubt. Although many manufacturers promote that rigid materials are added in aluminum alloy, which has excellent manufacturing resistance, many car owners are still not at ease. In addition, the domestic transportation road conditions are relatively complicated, especially for some mountain transportation. I'm afraid it's difficult to convince the public just by relying on publicity.

As the owner finally said, the actual use effect of this aluminum alloy side curtain semi-trailer still needs a period of observation and summary. In particular, the aluminum alloy hanging and side curtain hanging have been applied in the foreign market for a long time, but there are certain reasons why they have been "acclimatized" in China. If an effective solution can be found for their theoretical disadvantages after practical application, the market share can be increased in the near future.