The trailers can be coupled and uncoupled quickly, allowing them to be shunted for loading and to be trunked between depots.

Semi-trailer can haul longer objects(tree trunks, pipings, beams, railway track) than a full trailer.

Give equal lengths of the composition, a semi-trailer has greater load capacity, since the drawbar adds to the overall length of the composition.

A semi-trailer has a better ratio between tare and cargo weights.

A semi-trailer leads to more weight on the driven axles of the tractor than a truck plus trailer combination, an advantage on snow or mud.

Semi trailer series