Unlike on-road trucks, off highway trucks are specifically designed to work in punishing environments and are made to haul material and debris around a work site. These purpose-built vehicles are not constrained by the weight limits of their smaller on-road counterparts. Off highway trucks typically feature a front driving axle and ride on 63-inch tires. The largest off highway mining trucks stand more than two stories tall, boast diesel engines that weigh as much as 25,000 pounds, have as many as 12 turbochargers, and make more than 10,000 lb-ft of torque. To support payloads of up to 400 tons, these massive haulers have frame widths and depths that are measured in feet, not inches. Some of the largest off highway mining trucks are manufactured by Komatsu, Liebherr, Hitachi, Terex and Caterpillar.
Caterpillar introduces a smarter articulated truck design with built-in automatic features for the next generation Cat 725, 730, 730 EJ and 735 models.
Komatsu, in collaboration with Boliden, announced the commissioning and start of field trials for the first diesel trolley truck in its new Power Agnostic (PA) series.
Caterpillar Inc. is showcasing the new Cat 775 off-highway truck at bauma-Munich 2025. The machine is the first next generation design of off-highway trucks for the company.