Let's first look at what is a light semi-trailer. We usually see heavy semi-trailer on the road. Who knows there are light semi-trailer. Generally, a light semi-trailer is defined as a trailer with a load equivalent to that of an ordinary semi-trailer, similar size and more than 15% light weight, which is called a light semi-trailer.

The axle of semi-trailer is behind the center of gravity of the vehicle and can transfer the load-bearing capacity of the trailer to the tractor.

Today, with the increasing efforts to control overload, many trailer manufacturers are pursuing extreme lightweight. The reason why light semi-trailer is light needs to be realized through the following points:

1. Reducing the thickness of trailer steel plate can be realized by using higher grade steel plate. High grade steel has high strength, good toughness and fatigue resistance.

2. Reduce the axle weight. Generally, a set of rear axle and suspension of trailer are close to two tons. Therefore, there are a series of lightweight methods such as axle, disc brake bridge, four leaf spring suspension, vacuum tire and so on.

3. Suspension: air suspension can reduce the weight by more than 100 kg.

4. Change the design structure of the trailer: reduce the weight of bumper, breast board, protective net, spare wheel frame, toolbox, fence and other accessories.

Now the most effective method is to use high-grade steel, which is the most commonly used method. The high-strength steel semi-trailer is about 15% lighter than the trailer using ordinary steel. Generally, the self weight of light semi-trailer is about 6 tons, which are some breast board semi-trailers.

So how much is a light semi-trailer now? We learned from some commercial vehicle platforms on the network that the price of a light trailer is usually about 60000-70000, which is only the minimum configuration. If you want to install other configurations, you may need to pay more, but this is quoted according to personal needs. If it is a high configuration trailer, it even costs about 80000-100000.

The overall lightweight trend of trailers has come, so many ultra light trailer brands have emerged. As the most important accessory of trailers - axle, it is also moving towards lightweight. Its 13 ton axle weighs only 330kg.

As an old brand enterprise that has produced axle for 20 years, Darong axle is also making continuous innovation to achieve the ultimate lightweight of axle. The company has set up a professional quality inspection team to check the product quality at all levels. Darong machinery has always focused on the transformation and upgrading of its core business, relying on independent research and development, deeply promoted intelligent production, led the industry with technical advantages and built an international well-known brand.