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The WABCO 3200 was a rare example of a tri-axle haul truck configuration A medium sized haul truck, the 214-short-ton (194 t; 191-long-ton) Caterpillar 789 [1]. Most haul trucks have a two-axle design, but two well-known models from the 1970s, the 350T Terex Titan and 235T WABCO 3200/B, had three axles.
An articulated hauler, articulated dump truck (ADT), or sometimes a dump hauler, is a very large heavy-duty type of dump truck used to transport loads over rough terrain, and occasionally on public roads. The vehicle usually has all-wheel drive and consists of two basic units: the front section, generally called the tractor, and the rear ...
In the UK, tractor unit and trailer combinations are referred to as articulated lorries, or "artics". [1]A semi-trailer truck, also known as a semitruck, [1] (or semi, [2] eighteen-wheeler, [3] big rig, [4] tractor-trailer [5] or, by synecdoche, a semitrailer) [6] [a] is the combination of a tractor unit and one or more semi-trailers to carry freight.
Articulated dump truck or dumper. An articulated dumper is an all-wheel-drive, off-road dump truck. It has a hinge between the cab and the dump box but is distinct from a semi-trailer truck in that the power unit is a permanent fixture, not a separable vehicle.
Respectable diagram of the major points on a standard tractor trailer truck (or articulated lorry, if you happen to be from the other end of the pond). Admittedly not a particularly exciting image, however it does label and show and the standard points of a tractor trailer truck quite well, and that I judge is worth a shot here.
It is the largest articulated haul truck offered by Caterpillar; larger trucks use a rigid frame system. The ejector uses a 4-cylinder hydraulic ram and blade to dump the material out, a similar system to Cat's wheel tractor-scrapers.
Mack had produced a 14-yard (13 m)-long, heavy duty off-road hauler in 1931, specifically for the Boulder Dam project (the Model AP Super-Duty), but it was basically a beefed-up, road-going, chain-drive AC Bulldog Mack. The next Euclid design was an articulated, tractor/trailer, in the style of the Caterpillar DW10 bottom dumper.
Four years later in 1954, the company produced its first wheel loader H10. It was the world's first loader to feature a parallel lift arm system and attachment bracket, establishing Volvo as one of the leading construction companies in the world. They produced the world's first articulated hauler: the Volvo DR 631 Gravel Charlie-in 1966.