What are the variants of semi-trailer

There are various types of semi-trailer variants that have been optimized for specific transportation needs. The following are some common variant types and their characteristics:

Gooseneck fence semi-trailer:
Features: Lower cargo surface, lower center of gravity, smoother turning, stronger passability through bridges and bridge openings.
Usage: Suitable for medium to long distance transportation of medium to heavy and bulk goods, such as steel, stone, cement, etc.
High and low plate compartment semi-trailer:
Features: The height of the cargo platform can be adjusted to meet different cargo needs.
Usage: Mainly used for the transportation of agricultural and sideline products and other light foam goods, such as fruits, vegetables, etc.
Traction bar type box semi-trailer:
Features: Connected to the tractor through a traction rod, it has high flexibility.
Usage: Suitable for the transportation of household appliances, textile goods, building materials such as coal and sand, as well as palletized goods.
Mid axle box semi-trailer:
Features: The axle is located in the middle of the vehicle, suitable for lightweight transportation.
Usage: Similar to a trailer with a tow bar, but with a greater emphasis on lightweight design.
Flat cargo platform container semi-trailer:
Features: There is a flat cargo platform that can also transport ordinary long and large goods.
Usage: In addition to transporting containers, it can also be used for transporting large machinery and equipment, steel, etc.
Skeleton container semi-trailer:
Features: No cargo platform, the container is fixed to the chassis frame through a twist lock device.
Purpose: Specially used for transporting standard containers, it is an important tool for international cargo transportation and multimodal transport.
Heavy duty descending low flatbed semi-trailer:
Features: In addition to providing partial support for the tractor, the front end also has multiple axis transport units to provide load capacity, making the overall carrying capacity stronger.
Purpose: It can be used for transporting heavier construction machinery or large cargo.
Low board semi-trailer (with foldable slope board):
Features: The load area is composed of a flat plate supported by multiple axes, with a low height of the load plane. The rear is equipped with a foldable slope plate, which is convenient for vehicles or construction machinery to tow up and down on their own.
Usage: Extremely versatile, almost suitable for the transportation of various heavy goods.
Stretchable length flatbed semi-trailer:
Characteristic: The load area is also composed of flat plates supported by multiple axes, but with a design that can extend the length.
Usage: Suitable for transporting goods with significant length changes, such as long pipes, large structural components, etc.
Dynamic variants of dump semi trailers (such as the “Four Not Like” dump truck):
Features: It integrates soil pulling, loading and unloading, and transportation, flexibly shuttling between the city and construction sites, with strong passability and unloading capabilities.
Usage: Suitable for the transportation of bulk and scattered goods such as coal, ore, earthwork, and construction materials, especially suitable for complex road conditions and high-intensity working environments.