Semi-trailers are a type of commercial vehicle used for transportation of goods. They are designed to be attached to a tractor unit, which provides the power to move the trailer. Semi-trailers come in various sizes and shapes, and they are classified based on different criteria such as weight, length, and purpose. In this article, we will explore the different classification of semi-trailers.

Dry van trailers:

Dry van trailers are the most common type of semi-trailer used for transporting goods. These trailers have a fully enclosed box-shaped structure, with a roof, floor, and walls made of steel or aluminum. They are used to transport goods that need to be protected from the elements, such as electronics, clothing, and food products. Dry van trailers come in various sizes, ranging from 28 to 53 feet in length.

Flatbed trailers:

Flatbed trailers are another popular type of semi-trailer. They have an open top and a flat bed, which makes it easy to load and unload goods. Flatbed trailers are used to transport heavy and bulky goods such as machinery, building materials, and large vehicles. These trailers come in different sizes, with the most common lengths being 40 and 48 feet.

Refrigerated trailers:

Refrigerated trailers, also known as reefers, are used for transporting perishable goods such as food, pharmaceuticals, and chemicals that require temperature control. These trailers have a refrigeration unit installed, which keeps the cargo at a specified temperature. Refrigerated trailers come in various sizes, ranging from 28 to 53 feet in length.

Tanker trailers:

Tanker trailers are used for transporting liquids and gases such as petroleum, chemicals, and food-grade products. These trailers have a cylindrical tank mounted on a chassis. Tanker trailers come in various sizes, ranging from 28 to 53 feet in length.

Livestock trailers:

Livestock trailers are used for transporting animals such as cattle, sheep, and pigs. These trailers have different compartments to separate the animals and prevent them from getting injured during transportation. Livestock trailers come in various sizes, ranging from 16 to 53 feet in length.

Lowboy trailers:

Lowboy trailers are used for transporting heavy and oversized equipment such as construction machinery, cranes, and excavators. These trailers have a low bed, which makes it easy to load and unload large equipment. Lowboy trailers come in different sizes, with the most common lengths being 48 and 53 feet.

Dump trailers:

Dump trailers are used for transporting loose materials such as sand, gravel, and construction waste. These trailers have a hydraulic system that allows the cargo to be tipped out of the trailer. Dump trailers come in different sizes, with the most common lengths being 24 and 26 feet.

In conclusion, semi-trailers come in various sizes and shapes, and they are classified based on different criteria such as weight, length, and purpose. Knowing the different types of semi-trailers can help you choose the best one for your transportation needs. Whether you need to transport perishable goods, heavy equipment, or animals, there is a semi-trailer that is designed to meet your specific needs.

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