The semi-trailer is a logistics giant, designed for heavy, long-haul cargo. Paired with tractors, its modular design handles goods from retail to machinery, with specialized variants for liquids or refrigerated items. Efficient, reliable, it's key to global freight.
1. Freight transport:
The most common use is carrying goods such as food, consumer items, and industrial products.
2. Specialized cargo:
Different types of semi-trailers are designed for specific needs, including:
Flatbeds: For transporting oversized items or vehicles.
Box trailers: Enclosed units for general freight.
Refrigerated trailers: To transport temperature-controlled goods, like food.
Liquid or tanker trailers: For hauling bulk liquids.
Power & Connection: Semi-trailers have no independent engine, relying entirely on a tractor unit. They connect via a fifth-wheel coupling, locking the trailer’s kingpin securely.
Weight Transfer: Landing gear (support legs) is raised, shifting the trailer’s weight onto the tractor for stable transport.
Braking: Tractor and trailer braking systems synchronize through air lines to ensure safe stopping.
Steering: The tractor’s turning directs the trailer; longer trailers require careful maneuvering.
Cargo Adaptability: Semi-trailers can haul bulk, enclosed, or irregular goods by matching tractor specifications.
Purpose: A vital component in logistics for versatile and efficient cargo transport.
