Skeleton container trailers are specially designed to carry a variety of cargo containers.In the early stage of container transport development, ordinary freight cars were used to carry containers because of their small load and small quantity. Since the 1960s, with the rapid development of container transport, many countries have developed special transport container trucks. The size of the loading part of the container truck shall be determined according to the size of the standard container, and the twisting lock device for fixing the container shall be arranged at the corresponding position of the bottom four corners of the container.

Types of container trailers

Container trucks usually adopt the combined form of truck and trailer. This combination has semi trailer, full trailer and double trailer, among which semi trailer is in the majority.

The semi trailer composed of container trailer has two kinds of flat plate type and skeleton type. The loading part of the flatbed semi trailer is the flat platform, which can be used for shipping containers or ordinary long-piece goods. The trailer has high efficiency. The loading part of the skeleton semi trailer is the chassis skeleton without platform. After the container is loaded on the trailer and fixed by the twist-lock device, it also becomes the strength component of the semi trailer. Skeletal semi trailer can only be used to carry containers. It has the advantages of small dead weight, simple structure and convenient maintenance.

According to the structural form, the container semi trailer is divided into two types: straight frame type and gooseneck type. Upright semi trailers are suitable for carrying containers with flat bottom structure.The goosenc semi trailer is specially designed to carry containers with a grooved bottom structure to reduce loading height.

Important factors of skeleton trailer

1. Frame of container transport trailer

The chassis frame part of the container trailer is the main load-bearing part, which consists of beam, side beam and floor.The thickness of the 20 ft container chassis beam components for sale depends on whether the thickness is international standard. The international standard for skeleton frame is 14/8/16mm. The steel plate intermodal trailer in the middle of trailer frame beam shall be made of Q345B or manganese steel with a thickness of 8mm. Many unreliable suppliers will use 6mm thick beam slabs to save costs, but with a 26% reduction in carrying capacity. The international standard thickness of the middle part of the beam must be 8mm.

2. Axle of skeleton trailer

There are three types of skeleton trailer axles: coil frame trailer axles, axle and container skeleton trailer brake system axles. Skeleton trailer axle is 13 tons of container skeleton trailer axle brake system axle. Braking performance and load carrying capacity is better, braking distance is shortened more than 5 meters.

3. Tires of chassis of skeleton container

The combined transport chassis uses vacuum tires with better heat dissipation, model 12R22.5.The skeleton trailer uses factory-made wear-resistant tires.

4. Suspension skeleton trailer

The suspension of the composite chassis is made of special high strength rigid steel with a thickness of 6mm. The diameter of the intermediate pin is 70mm. Better than the shutdown of many factories.

How to choose a suitable container trailer

Your choice will first depend on your preference for skeletal trailers to get the job done. Usually, the selection is based on the following conditions:

1.Application

If you use a used intermodal container chassis trailer to transport not only containers but also other goods, it is best to choose the flatbed trailer type. According to your needs to choose, you can let professionals to provide you with purchase advice.

2.Price

Cost is also an important factor to consider when choosing suitable skeleton trailers. If you only need a simple skeleton trailer for simple applications, then choosing a container chassis trailer is not a wise choice. The price of multimodal container chassis is higher than other container chassis. This is mainly due to its advanced lifting system. Plate or container chassis can be used.

3.Weight

All of these container chassis trailers can carry a considerable amount of weight. However, to consider the weight, to sell a 2-axle 20-foot transport container trailer, a 3-axle used container chassis trailer is very helpful. Its structure is primarily designed to provide a chassis that can help you carry high-weight containers. Most importantly, it can be adjusted to meet your desired conditions for mobility, load, offload, and wheelbase.

4.Number of axis of gooseneck vessel

Depending on the amount of cargo carried, container trailers can be considered by looking at the number of axles sold for a 20-foot skeleton trailer per container trailer chassis. They can be 2-axle combined transport chassis or 3-axle transport container trailers. Do not expect containers with more than 3 shafts, as the maximum weight of a container is 30 tons. For example, the container trailer chassis structure has the ability to support multiple axle assemblies in different positions along the trailer length.

5.Frame of container transport trailer

The Q345 high-strength steel intermodal container chassis main girder has a higher bearing capacity and a service life of over 10 years. The linkage trailer uses automatic submerged arc welding method to weld the main girder. There is no interface between the steel plates to ensure the integrated main girder, so skeleton trailer main girder is stronger and more durable.

6.Braking system

Multiple function skeleton trailer braking system has effective braking, rapid braking response, braking distance reduced by more than 5m.