What is the difference between a Semi-Trailer and a Tractor-Trailer?

 What is the difference between a Semi-Trailer and a Tractor-Trailer? It's a common question, but the answer could be more satisfying. Before answering this question, let's look at how these two types of trucks are defined and the substantial differences between them.


Defining Semi-Trailer and Tractor-Trailer

First, let's briefly define semi-trailers and tractor-trailers. A Semi-Trailer is a truck whose trailer is partially attached to the rear of a tractor-trailer, not directly, but through a hitch. Conversely, a tractor-trailer is a type of truck in which the trailer portion is attached directly to the rear of the tractor, forming a complete single vehicle.


The Structural Difference

The most obvious difference between a semi-trailer and a tractor-trailer is their structure. The trailer section of the semi-trailer is only connected to the rear of the tractor rather than via a full connecting bridge. This design allows the semi-trailer to be more flexible and steer around corners more easily. In contrast, the trailer portion of the tractor-trailer is directly connected to the tractor through a connecting bridge, making the overall structure more stable.


The Functional Difference

In addition to structural differences, semi-trailers and tractor-trailers also differ in function. Due to the design of the semi-trailer, it is more suitable for transporting various types of cargo, including but not limited to containers, cargo pallets, bulk cargo, etc. On the other hand, the tractor-trailer is more suitable for cargo transportation. Tractor trailers, on the other hand, are more suitable for long-distance transportation because they are more structurally sound and can withstand greater loads and pressures.


In conclusion, semi-trailers and tractor-trailers both play an important role in the field of cargo transportation, although they differ in terms of structure and function. Understanding the differences between them can help freight companies and fleets choose the right vehicle for their transportation needs, increasing efficiency and reducing costs.Contact us at FAWDE for your needs and we will give you the highest discounts!

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