An articulated dump truck has a hinge between the cab and the dump box, but is distinct from semi trailer trucks in that the cab is a permanent fixture, not a seperable vehicle. Steering is accomplished via hydraulic rams that pivot the entire cab, rather than rack and pinion steering on the front axle. This vehicle is highly adaptable to rough terrain.
In line with its use in rough terrain longer distances and overly flat surfaces tend to cause driveline troubles, and failures. Articulated trucks are often referred to as the modern scraper, in the sense that they carry a much higher maintenance burden than most trucks.
Articulated Dump Trucks are extremely versatile hauling machines, growing in popularity around the world. As part of an earthmoving system they can haul a wide spectrum of material in a huge variety of applications and underfoot conditions. Articulated Trucks usually offer a tighter turning radius than a rigid frame truck.