Skeleton semi-trailer is a semi-trailer whose frame is welded by longitudinal beam, cross beam and front and rear end beams. Its appearance is similar to that of flat semi-trailer, except that the frame is used to replace the steel plate. From the top of the body, its bottom is exposed, so the goods transported are generally special.

Generally, skeleton semi-trailer can be used to transport containers, such as ships, ports, routes, highways, transfer stations, bridges, tunnels and other logistics systems, and can also be used to transport dangerous goods tanks. For skeleton semi-trailer, both containers and dangerous goods tanks belong to the category of goods, and only the vehicle skeleton belongs to the body structure.

According to gb1589, the length limit of skeleton semi-trailer is 13.95m, while the length limit of van semi-trailer is 13.75m. The reason for this difference is that the maximum length of standard containers on the market is 45 feet, or 13.715 meters. In order to facilitate the transportation of these containers, the length limit of skeleton semi-trailer is relaxed accordingly.

Compared with the general semi-trailer, the skeleton semi-trailer has lighter weight and can transport more goods under the regulations and standards. At the same time, it can save fuel, reduce the vehicle cost and improve the transportation efficiency to a certain extent. In addition, it is 20cm more than the van semi-trailer under the regulations, which increases the container volume to a certain extent, This makes many express companies choose to use skeleton cars instead of the original van.

However, the green light in regulations has also become a hotbed of violations to a certain extent. Especially in the case of lax Road law enforcement, the containers loaded on these skeleton vehicles will go beyond the scope of the skeleton, which has a great impact on the transportation safety belt.

In addition, during the annual review of skeleton semi-trailer, generally only the frame needs to be tested, which also makes it the object of private modification of vehicles. For example, the regulations require the mandatory installation of disc brake and suspended warehouse grid or fence car. In order to avoid the expensive installation cost, choose to buy skeleton car, and then install warehouse grid or fence on its basis, which is usually used as warehouse fence truck, Remove it during the annual review and only send the skeleton for review. This kind of operation seems to save the installation cost, but once it is found by the relevant departments, there will be fines or points deducted, and the safety performance of this modified model is much worse than that of the compliant model. Once there are problems, the gains will not pay off.

At present, there are more and more kinds of products in the trailer axle Market, including those with reliable quality and relatively affordable price. Instead of spending money on refitting, it is better to spend some time on purchasing high cost-effective products, which can not only ensure safety, but also save vehicle costs. Darong axle is the representative of high cost performance. Darong disc axle adopts the integrated shaft production process, which reduces the welding treatment between the shaft head at both ends and the shaft body, and greatly improves the heavy load performance. Fifteen production processes, including 1300 ℃ hot rotary rolling, one-time cold square pushing, 865 ℃ high temperature quenching, 480 ℃ heat preservation and tempering, CNC precision grinding and medium frequency induction treatment, are set in the production process to fully ensure the service performance of the axle. The key is that the price is relatively affordable, which can enable car owners to spend less money on a better axle.

Besides, although the structure of the lower frame semi-trailer looks relatively simple, it has high requirements for the strength of the vehicle due to the particularity of the goods it transports. If it is used for the transportation of dangerous goods tanks, the requirements for vehicle stability will be higher. Therefore, for the axle and suspension of skeleton semi-trailer, various factors need to be fully considered in the purchase. Darong axle has a rich product line. In addition to disc axle, drum axle, low flat axle, three wire six axle axle axle, concave axle, special axle and other mature specifications have been widely recognized by the industry. At the same time, customized services can be provided according to the size of users' needs. Welcome to contact us for consultation.