Semi trailer is a kind of transport vehicle widely used in China, among which three axle semi-trailer accounts for the highest proportion.

Since January 1, 2020, high-speed entrances in many provinces have not only taken weighing measures for semi trailers, but also implemented the charging mode according to axle (type). Under this more complex charging condition, the market sales volume of two axle semi-trailer is quietly increasing, and all kinds of two axle semi-trailer are frequently seen in the new car announcement of the Ministry of industry and information technology.

In fact, the old drivers know that the two axle semi-trailer is not an emerging model. In previous years, some car enterprises launched the two axle semi-trailer in order to reduce the dead weight of the trailer, but the popularity was slightly poor until the regulations on charging by axle were introduced.

Compared with three axle semi-trailer, the advantages of two axle vehicle are mainly reflected in the following two points:

1. High speed tolls are reduced.

This is more intuitive. After all, one axle is reduced. According to the standard of charging by axle, the high-speed toll will be reduced accordingly. As for the specific discount, it also needs to be calculated according to the detailed charging standards of each city.

2. The cost of car purchase has been greatly reduced.

Without an axle, the purchase cost of a new car will naturally fall.

But some car owners said: how much can one axle save?

Yes, the cost saved by one axle is really not too much, but please don't forget that for the widely used three-axle breast board and three-axle grid semi-trailer, the disc axle and air suspension are mandatory according to GB7258, but the two axle semi-trailer is not limited by this new regulation. In this way, it is almost appropriate to save tens of thousands of yuan in car purchase cost.

Correspondingly, however, the disadvantages of two axle semi-trailer are obvious:

1. Reduced loading capacity.

Take 6x4 and 4x2 tractors as an example. When the tractor is 6x4, the maximum gross weight limit of three axle semi-trailer is 49T and that of two axle semi-trailer is 43T; When the tractor is 4x2, the maximum gross weight limit of three axle semi-trailer is 42t and that of two axle semi-trailer is 36t.

It can be seen that the two axle semi-trailer carries 6T less goods than the three axle semi-trailer.

2. The overall length and size are reduced.

The restrictions on the overall dimensions of two axle semi-trailer shall be distinguished according to the vehicle type. For example, the maximum length limit of two axle breast board / bin grid / flat plate / dump truck is 10m, and that of three axle is 13m, which is reduced by 3M; The length limit of two axle van semi-trailer is the same as that of three axle, which is 13.75m.

Let's summarize the above:

1. If it is a breast board / warehouse grating / flat plate / dump semi-trailer, when the three axle is changed to two axle, the purchase cost is reduced, and the load capacity and outline length, generally speaking, the transportation tonnage and the number of transportation methods, are also reduced.

2. If it is a van type semi-trailer, when the three axles are changed to two axles, the purchase cost is reduced, the transportation tonnage is reduced, but the number of transportation ways has not changed.

In this way, it is easier to understand which is more suitable for a three axle semi-trailer or a two axle semi-trailer:

If the owner mainly transports light goods, such as express transportation, two axle semi-trailer is a good choice. Not only the purchase cost is reduced, but also the operating income can be basically guaranteed;

If the owner is mainly standard load transportation, especially breast board / warehouse grid / flat plate / dump semi-trailer, although the two axle vehicle can reduce the initial input cost, the subsequent freight will also be reduced. In contrast, the three axle vehicle is more suitable.

In addition, from an objective point of view, the exclusive use of special vehicles will also become a development trend of the freight industry. If the owner has enough money, it is better to buy a compliant three axle semi-trailer. Although the investment cost is relatively high, there are many types of goods that can be transported later, the safety and bearing capacity are better, and the long-term income may be higher.

Anyway, for car owners, driving safety is the most important, and how much money they make is the second. Whether you choose two or three axles, it is recommended that you choose an axle with reliable performance and quality. In the current low freight environment, the more cost-effective products are naturally worth choosing. Here I recommend Darong axle, which entered the market in 2001 and has a history of 21 years. It is a fixed cooperative brand of many Trailer factories in Liangshan and even the whole country. Darong axle has rich series, complete models and special sizes. It can provide customized services with stable and reliable quality and no adulteration in price, so as to help car owners save comprehensive vehicle costs and improve operation efficiency.