Semi trailer Full Guide: Introduction to Models from Basic to Advanced

1、 What is a semi-trailer model

For professional truck drivers who shuttle on the highway, terms such as "semi-trailer" and "trailer" are as familiar as their companions. However, for most ordinary car owners, these terms may be like shooting stars in the night sky, shining brightly but out of reach. Today, let's unveil their mysterious veil together and step into this little-known world.

A semi-trailer, like a skilled dancer, spins and jumps lightly on the road. Its front half is closely connected to the tractor, like a dancer's arm, flexible and powerful; The latter half carries the goods, like a dancer's skirt, flowing and moving. Trailers are even more simple, as they do not have a tractor in the front half, but rely on other vehicles for traction, like a loyal follower silently carrying responsibility and mission.

These two types of vehicles play a crucial role in the logistics industry, like giants on the road, carrying countless goods and connecting every corner of the world. Whether in bustling cities or remote rural areas, wherever there are roads, their presence is present. They are not only important tools for transporting goods, but also an indispensable part of modern society.

I hope that through this brief introduction, everyone can have a clearer understanding of semi trailers and trailers. Although they are large and cumbersome, they carry countless hopes and dreams, silently dedicating their strength on the road.

The so-called semi-trailer refers to a trailer with its axle placed behind the vehicle's center of gravity (when the vehicle is uniformly loaded) and equipped with a coupling device that can transmit horizontal and vertical forces to the towing vehicle. Simply put, it is a heavy-duty transportation vehicle where the front of the trailer needs to bear a portion of the trailer's weight.2、 Advantages and disadvantages of semi-trailer

1. Advantages of semi-trailer

Semi trailers have high stability, can travel on highways, and have a large loading capacity, especially for some large cargo that can only be pulled by semi trailers. The length of other trailer carriages is not enough.

2. Disadvantages of semi-trailer

The turning radius of the semi-trailer is too large because the distance between the front of the vehicle and the trailer wheels is too long, which requires high road conditions.

3、 What are the types of semi trailers

Semi trailers are mainly used for long-distance transportation of goods, and there are many types, mainly including the following:

1. Self dumping semi-trailer

The self dumping semi-trailer is suitable for the transportation of bulk and scattered goods such as coal, ore, and construction materials. The carriage adopts a side flip and rear flip self dumping method, which can effectively improve the transportation efficiency of the loading and unloading machine for transporting bulk and scattered goods. The frame and longitudinal beam of the carriage are welded with high-quality manganese plates, and the cargo box has two types: dustpan and rectangular. It has the characteristics of high strength, strong lifting force, good rigidity and toughness, strong bearing capacity, and no permanent deformation.

2. Low flatbed semi-trailer

The low flatbed semi-trailer has no railing on the vehicle body and is mainly used for medium and long-distance freight transportation. The frame is a through beam structure, consisting of a series of dry plate springs and suspension supports. The structure is reasonable, with strong rigidity and strength, used to support loads and mitigate impacts. Low flatbed semi trailers are commonly used to transport heavy vehicles (such as tractors, buses, specialized vehicles, etc.), rail vehicles, mining machinery, forestry machinery, agricultural machinery (such as excavators, bulldozers, loaders, pavers, cranes, etc.), and other heavy cargo.

3. Warehouse grate semi-trailer

Warehouse rack semi-trailer is a semi-trailer designed with a fence structure for the cargo area, mainly used for the transportation of agricultural and sideline products and other light foam goods. The vehicle model and fence structure design process are combined with the user's cargo category, and are reasonably designed to fully reduce the weight of the carriage under load conditions. The structure is simple and applicable, and easy to disassemble.

4. Container semi-trailer

It is a semi-trailer with a container structure as the cargo carrying part, mainly used in logistics systems supporting ships, ports, routes, highways, transfer stations, bridges, tunnels, and multimodal transport. It is specifically designed for the transportation of various containers and can help with fast loading, unloading, and transfer of goods.

5. Tank semi-trailer

The semi-trailer with a tank type cargo structure is mainly used for transporting liquids, bulk materials, and bulk cement, including oil tank trucks, concrete mixer trucks, powder and bulk cement trucks, water supply trucks, etc.

6. Box type semi-trailer

The box type semi-trailer series products are used for the transportation of household appliances, textile goods, building materials such as coal and sand, as well as graphic cargo. The box body is made of high-strength cold-rolled corrugated steel plate, with no skeleton structure and a wide range of options in the center. It has a large loading space and a reasonable distribution inside the box. It is supported by X-shaped braces and has the characteristics of being large, heavy, and light in weight. The box type semi-trailer adopts a closed side guardrail design, effectively reducing the lateral risk and energy consumption of the vehicle when driving at high speeds. The rear protection design has reasonable trolley accessories, which is convenient for operation.

7. Oil semi-trailer

Mainly used for large-scale oil transportation, the tonnage is generally around 40-60 cubic meters, and there are usually two types of semi trailers: two axle semi trailers and three axle semi trailers.

8. Light semi-trailer

A semi-trailer that is equivalent in load capacity, size, and weight to more than 15% of a regular vehicle is generally achieved by reducing the thickness of the board, lowering the weight of the rear axle, changing the suspension, reducing the weight of accessories, and using a suspended rear axle.

9. Vehicle transport semi-trailer

It mainly carries sedans, but can also carry passenger cars such as vans, commercial vehicles, jeeps, etc. The body is made of pole and cabinet structures, with a lightweight structure and light weight. Most of them are two-tier loading platforms, which have the characteristics of lightweight structure, safe and convenient operation.

10. Powder material transportation semi-trailer

A specialized vehicle for transporting large quantities of dust materials (such as bulk cement), suitable for the transportation and pneumatic unloading of dry materials such as fly ash, cement, lime powder, and ore powder with particle diameters not exceeding 0.1mm.

11. Chemical liquid transportation semi-trailer

Used for transporting chemical liquids, the requirements for tank materials vary depending on the characteristics of the medium being transported, mainly including stainless steel, carbon steel, plastic steel, fiberglass, aluminum tanks, all plastic tanks, etc.

12. Fence type semi-trailer

The semi-trailer with a rail structure as the cargo carrying part is mainly suitable for medium and heavy-duty and bulk cargo transportation over medium and long distances. It has strong applicability and has become the preferred choice for medium and long-distance freight vehicles.

13. Gooseneck semi-trailer

Suitable for the transportation of various mechanical equipment, large objects, highway construction equipment, large tank bodies, power plant equipment, and various steel materials. There are flat plate, concave beam, and tire exposed structures. The longitudinal beam adopts a straight or goose neck type, and its frame is stepped. The longitudinal beam section is I-shaped, with high rigidity and strength.