What types of semi-trailers are there, and what is their load capacity?

A semi-trailer is a common type of cargo vehicle that can be categorized into various types based on its structure and function. The main types include flatbed semi-trailer, box semi-trailer, refrigerated semi-trailer, tank semi-trailer, and trailer semi-trailer, among others.

Firstly, the flatbed semi-trailer, also known as a flatbed trailer, has a flat cargo box and is suitable for transporting larger and less prone to deformation goods such as steel and construction equipment. Flatbed semi-trailers typically have a higher load capacity, ranging from 20 tons to 80 tons depending on the size.

Secondly, the box semi-trailer has a closed cargo box and is suitable for transporting goods that are prone to moisture or require dust protection, such as grain and electronic products. Box semi-trailers have a load capacity ranging from 20 tons to 40 tons depending on the size.

The refrigerated semi-trailer is mainly used for transporting goods that require constant temperature or freezing, such as fruits, vegetables, and pharmaceuticals. Refrigerated semi-trailers have special cooling equipment to maintain the freshness and quality of goods during transportation, with a load capacity ranging from 20 tons to 40 tons.

Tank semi-trailers are mainly used for transporting liquid or powdered goods, such as oil and chemicals. Tank semi-trailers have cylindrical or oval-shaped tanks and can be made of different materials and capacities according to different needs. Their load capacity ranges from 20 tons to 60 tons.

Finally, the trailer semi-trailer, also known as a towing trailer, is mainly used for transporting large equipment or vehicles, such as excavators and bulldozers. Trailer semi-trailers have a higher load capacity, ranging from 60 tons to 150 tons depending on the size.

In summary, the load capacity of a semi-trailer depends on its type and structure, ranging from 20 tons to 150 tons. Different types of semi-trailers are suitable for different cargo transportation needs, with varying load capacities. Shippers can choose the appropriate semi-trailer for their specific needs and cargo characteristics