Semi trailer trucks, also known as semi-trucks, tractor-trailers, or articulated lorries, are large trucks used for the transportation of goods across long distances. They typically comprise of a tractor unit, which is a cab and engine connected to a semi-trailer through a fifth wheel coupling. Semi-trailers can range in length from 10–53 feet and have maximum gross weights of up to 80,000 pounds.
The length of a semi trailer truck will depend on its purpose. For example, a semi-trailer used for transporting standard goods such as dry goods or groceries will be shorter in length than one used for hauling heavy loads such as construction equipment or oversized cargo.
The type of cargo being hauled will also have an effect on the size and length of the trailer; for instance, refrigerated trailers that transport food items need to be insulated so they will generally be longer than other types of trailers.
The number of axles on the trailer is another factor that affects its length. A single axle semi-trailer is limited to 28 feet in overall length while a tandem axle semi-trailer can measure up to 53 feet in overall length. The number of axles on the trailer also affects the amount of weight it can safely carry; thus single axle trailers are typically limited to 20,000 pounds while tandem axle trailers can safely haul up to 80,000 pounds.
Semi trailer trucks are an integral part of many businesses as they provide an efficient way to move large amounts of goods over long distances. As such, it is important for truck owners and operators to understand the various factors that affect the size and capacity of these vehicles so they can select the best option for their needs.
Conclusion:
Semi trailer trucks vary in size depending on their purpose and number of axles they have. Single axle semi-trailers measure up to 28 feet while tandem axle trailers can reach lengths up to 53 feet with maximum gross weights up to 80,000 pounds.
