Characteristics Of Semi-trailers

A semi-trailer is a trailer whose axles are positioned behind the vehicle's center of gravity (when the vehicle is uniformly loaded) and which is equipped with a coupling device capable of transmitting both horizontal and vertical forces to a towing vehicle. Semi-trailers typically feature a three-axle configuration; their various types include 11-meter stake-side trailers, 13-meter stake-side trailers, low-bed trailers, and many others. They serve as heavy-duty transportation vehicles that connect to a semi-trailer tractor via a kingpin.

Compared to "rigid" (single-unit) trucks, semi-trailers are far more effective at enhancing the overall economic efficiency of road transport. Transport efficiency can be boosted by 30–50%, operating costs reduced by 30–40%, and fuel consumption lowered by 20–30%. More importantly, the utilization of semi-trailers also plays a significant role in facilitating the advancement and optimization of logistics organizational structures within the country.