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The skeleton semi-trailer is a semi-trailer whose frame is welded by longitudinal beams, beams and front and rear beams. It is similar in appearance to a flatbed semi-trailer, but the frame is used instead of the steel plate. Viewed from the top of the body, its bottom is exposed. Therefore, the goods it transports are generally unique.
Usually, skeleton semi-trailers can be used to transport containers, such as in ships, ports, routes, highways, transfer stations, bridges, tunnels and other logistics systems. It can also be used to transport tanks with dangerous goods. For the skeleton semi-trailer, whether it is a container or a tank with dangerous goods, it is all within the category of goods and only the skeleton structure is considered the trailer body and structure.
According to the national standard GB1589 in China, the maximum length allowed for the skeleton semi-trailer is 13.95 meters, while the length limit of the van semi-trailer is 13.75 meters. The reason for this difference is that the longest standard container on the market is 45 feet, or 13.715 meters. In order to facilitate the transportation of these containers, the length limit of the skeleton semi-trailer is lowered accordingly.
Compared with ordinary semi-trailers, skeleton semi-trailers are lighter in weight and can transport more goods under regulatory standards. At the same time, they can save fuel, reduce vehicle costs, and improve transportation efficiency to a certain extent. Furthermore, they are 20cm longer than the van semi-trailer, which increases the volume of the cargo box. That’s the reason why many express companies have started to replace the original van trailers with skeleton semi trailers.
However, the green light in the regulations has also become a hotbed of violations to a certain extent. Especially in the case of lacking road law enforcement, the cargo boxes loaded on these skeleton vehicles will go beyond the scope of the skeleton, which has a great impact on transportation safety.
In addition, the frame semi-trailer generally only needs to be tested for the frame during the annual review, which also makes it the object of private modification of the vehicle. For example, the regulations require the mandatory installation of disc brakes and suspended cargo fence trailer or side wall trailers. In order to avoid expensive installation fee, some people choose to buy a skeleton car and then install fences or side boards on it. Usually, it is used as a cargo fence trailer or side wall trailer during all the time. When it is time for the annual vehicle review, the modification is then taken off and it becomes a skeleton semi trailer again. This operation seems to save installation costs and harmless, but the safety performance of this modified model is much worse than that of the compliant model.
Nowadays, the types of products are overflowing in the trailer axle market. Many of them are of reliable quality and relatively affordable prices. Instead of spending money to make modification, it is better to spend some thoughts into purchasing cost-effective products, which can not only ensure safety, but also save the cost.
Besides, the lower skeleton semi-trailer, although its structure looks relatively simple, has a relatively high requirement of the trailer strength due to the particularity of its transport of goods. If it is used for the transportation of dangerous goods tanks, the requirements for the stability of the vehicle will also be higher. Therefore, for the axle and suspension of the skeleton semi-trailer, it is necessary to fully consider various factors when making the purchase.
The skeleton semi-trailer is a semi-trailer whose frame is welded by longitudinal beams, beams and front and rear beams. It is similar in appearance to a flatbed semi-trailer, but the frame is used instead of the steel plate. Viewed from the top of the body, its bottom is exposed. Therefore, the goods it transports are generally unique.
Usually, skeleton semi-trailers can be used to transport containers, such as in ships, ports, routes, highways, transfer stations, bridges, tunnels and other logistics systems. It can also be used to transport tanks with dangerous goods. For the skeleton semi-trailer, whether it is a container or a tank with dangerous goods, it is all within the category of goods and only the skeleton structure is considered the trailer body and structure.
According to the national standard GB1589 in China, the maximum length allowed for the skeleton semi-trailer is 13.95 meters, while the length limit of the van semi-trailer is 13.75 meters. The reason for this difference is that the longest standard container on the market is 45 feet, or 13.715 meters. In order to facilitate the transportation of these containers, the length limit of the skeleton semi-trailer is lowered accordingly.
Compared with ordinary semi-trailers, skeleton semi-trailers are lighter in weight and can transport more goods under regulatory standards. At the same time, they can save fuel, reduce vehicle costs, and improve transportation efficiency to a certain extent. Furthermore, they are 20cm longer than the van semi-trailer, which increases the volume of the cargo box. That’s the reason why many express companies have started to replace the original van trailers with skeleton semi trailers.
However, the green light in the regulations has also become a hotbed of violations to a certain extent. Especially in the case of lacking road law enforcement, the cargo boxes loaded on these skeleton vehicles will go beyond the scope of the skeleton, which has a great impact on transportation safety.
In addition, the frame semi-trailer generally only needs to be tested for the frame during the annual review, which also makes it the object of private modification of the vehicle. For example, the regulations require the mandatory installation of disc brakes and suspended cargo fence trailer or side wall trailers. In order to avoid expensive installation fee, some people choose to buy a skeleton car and then install fences or side boards on it. Usually, it is used as a cargo fence trailer or side wall trailer during all the time. When it is time for the annual vehicle review, the modification is then taken off and it becomes a skeleton semi trailer again. This operation seems to save installation costs and harmless, but the safety performance of this modified model is much worse than that of the compliant model.
Nowadays, the types of products are overflowing in the trailer axle market. Many of them are of reliable quality and relatively affordable prices. Instead of spending money to make modification, it is better to spend some thoughts into purchasing cost-effective products, which can not only ensure safety, but also save the cost.
Besides, the lower skeleton semi-trailer, although its structure looks relatively simple, has a relatively high requirement of the trailer strength due to the particularity of its transport of goods. If it is used for the transportation of dangerous goods tanks, the requirements for the stability of the vehicle will also be higher. Therefore, for the axle and suspension of the skeleton semi-trailer, it is necessary to fully consider various factors when making the purchase.
