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About Off-Highway Trucks

The off-highway trucks market includes articulated dump trucks (ADTs), end dump trucks, and rigid (or rock) trucks most commonly used on construction and mining operations to haul rock, debris, and other materials. ADTs can be distinguished from other types of off-highway trucks by the mechanism between the cab and the dump body bends or swivels, allowing the truck to make tighter turns and operate on uneven terrain. The trade-off is that ADTs often have lower maximum payload capacities.

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Caterpillar 777G Off-Highway Rigid Dump Truck

Rigid dump trucks, which are sometimes referred to as “haul trucks,” typically have a lip on the dump body that hangs over the cab for added protection. They can handle larger payloads than ADTs, but that also makes them heavier and often less maneuverable. For that reason, articulated dump trucks are ideal for tighter worksites with sometimes challenging terrain, while rigids are better-suited for large mining operations with clear paths and relatively flat driving surfaces.

Articulated and rigid dump trucks do have a few things in common; both often offer the option to purchase them as a bare chassis or with a pre-configured dump body. They or may not have a rear tailgate, and they also feature one or more hydraulic rams that lift up the front of the dump body to tip materials out of the back for easy unloading. End dump trucks differ a bit in that they also have hydraulic rams but the lifting mechanism is sometimes located farther back on the chassis over top of the rear-most wheels.

Common Examples

The payload capacities of off-highway trucks vary widely, most commonly from around 25 to 400 tons (23 to 363 metric tons). There are, of course, outliers, such as the massive BELAZ-75710 mining dump truck with its 893-t (810-mt) gross weight and 496-t (450-mt) payload capacity.

Caterpillar is a popular off-highway truck manufacturer that sells both articulated and rigid dump trucks. One example of an ADT is the Cat 740, which, depending on the exact configuration, has a rated payload capacity of 42 t (38 mt), a struck capacity of 23.5 cubic yards (18 cubic meters), and a heaped capacity of 30 yd3 (23 m3). Volvo is another popular brand that manufactures ADTs such as the A40, with payload capacities of between 28 and 61 t (25 and 55 mt) and heaped dump body capacities of between 20 and 44 yd3 (15 and 34 m3).

Caterpillar’s rigid dump truck portfolio shows the true range of off-highway and mining trucks. At the lower end, there’s the Cat 770 with its 42.1-t (38-mt) payload capacity. Up from there is the Cat 777 with its 98.4-t (89-mt) capacity, and at the top is the Cat 798 with a maximum capacity of 410 t (372 mt). Caterpillar is one example of a manufacturer that offers its off-highway trucks as bare chassis and with pre-configured body options.

Find The Right Off-Highway Truck For Your Operation

MachineryTrader.com offers for-sale listings for thousands of new and used off-highway trucks for sale from such popular brands as Bell, Caterpillar, Deere, Komatsu, Terex, and Volvo.