Lightweight is the mainstream trend in the current automotive industry, and freight vehicles are no exception. Driven by this trend, the application frequency of airbag bridges is increasing, from tractors to semi trailers, where they can be seen.

Compared to steel plate bridges, airbag bridges appear lightweight in both material and weight, leading many car owners to question whether they can withstand the weight of goods.

Actually, this kind of questioning is not necessary. After all, airbag bridges are not an emerging product. Before being put into the market, their rated tonnage had been tested countless times before being put into the market. In addition, many foreign countries and regions choose airbag bridges for heavy-duty trucks, with an installation ratio of over 80%, which to some extent demonstrates the reliability of airbag bridges.

However, there are prerequisites for this' reliability ', one of which is that overloading is not allowed. Otherwise, once the usage range of the airbag bridge is exceeded, the probability of early damage or scrapping will far exceed that of the steel plate bridge, and the maintenance cost will also be much higher.

In addition, during the use of the airbag bridge, it is necessary to strictly control the airbag pressure, stay away from exposure to sunlight, acid, alkali, oil, organic lubricants, and other environments. Be cautious when using it under road conditions such as sand and gravel splashing. Daily vehicle parking and maintenance also need to pay attention to many things.

Furthermore, the original intention of the airbag bridge was not to increase loading capacity, but rather to control overloading. For example, taking the mandatory installation of airbag bridges on three axle guardrails and semi hung warehouses in China, one of the reasons is that these vehicles have a high inventory, poor safety technology, and mostly transport low value-added products. Therefore, many car owners transport according to the upper limit or even exceed the load limit, which affects traffic safety and increases damage to the road surface. Forcing them to use airbag bridge can reduce overloading and improve Factor of safety to a certain extent.

Of course, the advantages of airbag bridges themselves are also an important reason for their widespread promotion. They have excellent shock absorption, light weight, protect goods, can be freely lifted, and can also reduce tire wear and protect chassis components.

As for how many tons can be pulled by the airbag bridge, that is, what is the load-bearing limit of the airbag bridge? This requires a specific analysis, considering the size, material, thickness, configuration, and usage environment of the airbag bridge.

In general, the airbag bridges sold by axle factories will be clearly labeled with carrying capacity, such as 11t, 13t, 15t, etc. As long as they do not exceed this range, there will be basically no problems.

In addition, if it is a factory made airbag bridge that matches the model, it depends on the load limit of the model. For example, if the load limit of a three axle fender semi trailer is 49t, subtracting the vehicle's own weight, the remaining weight is the safe weight that the vehicle can bear. As long as the use method is appropriate, it is still relatively durable.

Since it comes to durability, by the way, the service life of a set of airbag bridges is generally around 3-5 years, and it is generally necessary to replace them in this range. If the car owner uses it with great precision and performs good daily maintenance, it can last for about 5 years. If the operating conditions are poor or the instructions are not followed, the service life of the airbag bridge will also be greatly reduced.

Anyway, to ensure the safety and service life of the airbag bridge, it is necessary to choose a product that meets all parameters from the beginning. The airbag bridge series under the Daro brand adopts a European design, with a long airbag travel, long service life, and a rated load of 13t, which can effectively reduce cargo loss and improve operational efficiency.