The European 18.55m elongated semi trailer was born

Vehicle length is closely related to cargo load and transportation efficiency. In general, the larger the vehicle profile size, the higher the volume of goods can be transported.

According to relevant regulations, the total length of tractors and semi-trailers in China shall not exceed 17.5m, and the standard length is generally 10m, 11m, 13m, 14.6m and 16m. In Europe, the regulation on the length limit of semi-trailer is similar. Generally, the most common is the maximum length of the combination of tractor and semi-trailer shall not exceed 16.5m, but this limit will be changed from May 31.

According to foreign media reports, the United Kingdom on May 10, after an 11-year extended trailer configuration trial project, the new legislation to allow longer semi-trailers on British roads from May 31, and the green light for such vehicles.

Data shows that the length of this extended trailer is about 15.65m. After connecting the tractor, the maximum combined length is about 18.55m, which is 2.05m longer than before. Its most obvious advantage is the volume improvement, which is about 15% higher than the traditional trailer.

In order to ensure the driving flexibility of this model and avoid affecting traffic safety when it turns or makes a U-turn, the regulations also require that at least 1 of the 3 axles carried by the trailer must have the steering function, which is also in line with the provisions of EU Act 96/53/EC: Any vehicle and trailer combination must be able to make a turn in a ring with an outer radius of 12.5m and an inner radius of 5.3m.

However, while the length limit has been further relaxed, the weight limit has not been changed and the extended trailer still needs to operate within the gross vehicle weight limit currently in force in the UK of 44t. In other words, its maximum total weight is still 44t.

In this way, the application scenario of this extended trailer is positioned. After all, as the length of the trailer increases, the no-load weight will also increase. Under the condition that the total weight limit remains unchanged, the maximum payload weight will be adversely affected. Compared with ordinary goods, this model is more suitable for the transport of light throw goods, such as express transfer, pallet transport, etc.

Due to its larger number of transport parties in a single time, when transporting the same volume of goods, the transport frequency can be reduced and the total mileage can be reduced. Relevant data show that this extended trailer can reduce the total mileage of about 8% compared with the standard trailer, and one standard trailer can be reduced on the road every 12 times. It has great significance for reducing pollutant emission, reducing and avoiding congestion collision risk, saving fuel consumption and improving environmental benefits. Thus, the appearance of this extended trailer, its biggest purpose is green, environmental protection and efficient.

For the Chinese market, does this semi truck meet the needs? In other words, will it be introduced to the Chinese market?

In fact, whether any type of vehicle conforms to the national conditions needs to consider road infrastructure, traffic density of highway network, safety awareness of personnel, driver training and other factors.

The lengthened semi-trailer is longer, and it will increase the difficulty of overtaking the car on the road. It is more difficult to turn or make a U-turn on the narrow road than the ordinary semi-trailer. In addition to strictly screening the driver, the technical configuration of the vehicle must also strictly meet the standards.

In addition, our road network is more complex and traffic conditions are relatively crowded. For example, the roads in southwest China are relatively narrow, which is not suitable for vehicles with too large length. Most highway entrances, roundabout islands and curves cannot meet the transportation needs of extended semi-trailers, and service areas or gas stations cannot provide suitable parking Spaces. Also does not comply with the GB1589 semi-trailer length limit.

It is worth noting that whether it is green, environmental protection or efficient, is the main theme of the development of the international and domestic vehicle market. The emergence of new models is no longer as before to meet the transportation needs of goods, but also to improve the technical content, in line with the general trend of standardization and modularization. As with vehicles, so with accessories. DARO trailer axle established more than 20 years, has always focused on the development and manufacturing of trailer axle, its American axle, German axle, low flat axle, three-line six-axle, eccentric axle, RV axle, electromagnetic axle and other series of rich, can provide customized services according to customer requirements, ultra-high cost performance, help owners to reduce comprehensive vehicle costs, energy saving and emission reduction.