The mid axle trailer is a rising star in freight vehicles. GB1589 has correspondingly relaxed the overall dimensions of mid axle trailers compared to semi trailers, and has also launched mid axle road trains.

Central axle road trains belong to a type of car train, consisting of cars and central axle trailers. They can be mainly divided into several types: heavy trucks+central axle carriages, light trucks+central axle carriages, passenger cars+central axle carriages, central axle vehicle transport vehicles, and so on.

The central axle road train has one more carriage than a regular trailer, and the transportation capacity is said to reach a maximum of about 120 square meters, which is equivalent to the compliant loading capacity of two traditional 9.6 meter trucks; Secondly, the center of gravity of mid axle highway trains is lower, and under the same turning radius, mid axle trains can do longer; In addition, it can also be used as a dual vehicle, either alone with the main vehicle or by towing the carriage. It is flexible in towing and is very suitable for express delivery, light cargo transportation, and light cargo transportation, especially in dedicated line transportation, with more obvious advantages.

Looking at the freight market in recent years, apart from emerging in the field of car transportation, the mid axle road train has remained unknown in other fields. Since it can load more goods and comply with regulations, why has it not been popularized? The main reasons are as follows:

1. Switching in a short period of time requires more investment in costs

At present, the vehicles operating on the road are mainly traditional semi trailers, and the illegal use of large plate cars has not been eradicated. In terms of transportation volume, although the central axle road trains may be slightly better than semi trailers, they do not have an advantage when facing large plates. Furthermore, replacing vehicles with mid axle road trains in a short period of time requires a significant investment, which is not advantageous from a user perspective.

2. Road conditions and station design are not suitable for central axis highway trains

At present, many logistics companies, parking lots, and road designs in China are designed based on semi trailers and other vehicle models. Middle axle road trains appeared relatively late and failed to catch up with the early development of logistics in the Red Sea. Their vehicle characteristics are obvious, and they also have high requirements for road conditions and station design. Therefore, middle axle road trains may only be used as vehicles in a few scenarios.

3. The technology of mid axle highway trains in China is not mature

Many car owners have reported that the stability of mid axle highway trains is poor when driving on slippery roads, and it is easy to experience tailspin and other situations when the road is slippery on rainy days. In addition, on some sections with large drops, mid axle highway trains are prone to tilting their tails on slopes, and the driving wheels are prone to slipping, resulting in the vehicle being unable to move forward. Moreover, when running with the center axle, the body of the vehicle is already prone to swinging up and down or left and right. The movement of the rear trailer is more flexible, and if the speed is too fast, it can easily cause tailspin. In severe cases, it can even cause the entire vehicle to lose control and roll.

4. Other technologically mature vehicle models have invisibly suppressed the development of central axle highway trains

At present, the domestic medium to long-distance transportation market is still dominated by semi-trailers, which can meet the transportation needs of most goods in terms of loading capacity, carrying capacity, and applicable working conditions. The most important thing is that the semi trailer market is relatively mature and has a variety of types, making its position in the market difficult to shake in the short term.

Although this is still the case, we should also see that central axle trains have long been a popular and mature product abroad. The modularization and standardization of the international and domestic transportation markets are the main trend. With the continuous development of vehicle technology, central axle vehicles may be more commonly used by group companies in the future, and their market coverage may also be improved to a certain extent.

No matter what type of transportation model, it is necessary to pair it with high-quality axles in order to achieve better efficiency in the transportation field. Darong Group is one of the first batch of enterprises to mass produce "one piece" axles in China. For 20 years, it has always focused on the research, development and manufacturing of trailer axles. Its American style axle, German style axle, low platform axle, three line six axle axle, recreational vehicle axle, agricultural vehicle axle, special vehicle axle, etc. should do their best to provide customized services according to customer requirements, help owners reduce the cost of comprehensive vehicles, and achieve energy conservation and emission reduction.