Haul trucks are off-highway, rigid dump trucks specifically engineered for use in high-production mining and heavy-duty construction environments. Haul trucks are also used for transporting construction equipment from job site to job site. Some are multi-axle in order to support the equipment that is being hauled.
Most haul trucks have a two-axle design, but two very well known models from the 1970s, the 350T Terex Titan and 235T Wabco 3200/B, had three axles.  Haul truck capacities range from 40 short tons (36 t) to 496 short tons (450 t).
Large quarry-sized trucks range from 40 to 100 tons. A good example of this is the Caterpillar 775 (rated at 70 short tons (64 t)). Quarry operations are typically smaller than, say, a gold/copper mine, and require smaller trucks.
The largest, highest-payload-capacity haul trucks are referred to as ultra class trucks. The ultra class includes all haul trucks with a payload capacity of 300 short tons (272 t) or greater. As of October 2013[update], the BelAZ 75710 has the highest payload capacity, 450 metric tons.
As the world largest six-wheeled dump truck, the XDE400 electric drive dump truck can accommodate 400 Metric tons. It is equipped with a XCMG-patented AC variable frequency traction system to improve its traction and ambling capacity and also achieve higher efficiency.
|BelAZ 75710||BelAZ||496 short tons (450,000 kg)||diesel-electric||
|Liebherr T 282B||Liebherr||2004||400 short tons (360,000 kg)||diesel-electric|
|Bucyrus MT6300AC||Bucyrus International||2008||400 short tons (360,000 kg)||diesel-electric||
|Komatsu 980E-4||Komatsu America Corp.||2016||400 short tons (360,000 kg)||diesel-electric|
|Caterpillar 797||Caterpillar||1997||360 short tons (330,000 kg)||diesel-mechanical|
|Komatsu 960E-1||Komatsu America Corp.||2008||360 short tons (330,000 kg)||diesel-electric|
|Belaz 75600||BelAZ||350 short tons (320,000 kg)||diesel-electric|
|Komatsu 930E||Komatsu America Corp.||1995||2,100||320 short tons (290,000 kg)||diesel-electric||Number built as of September, 2018|
|Komatsu 830E||Komatsu America Corp.||255 short tons (231,000 kg)||diesel-electric||Previously built by Dresser Industries prior to Komatsu takeover|
|DAC 120 DE||Diesel Auto Camion||1988||15||120 short tons (110,000 kg)||diesel-electric|
|Terex 33-19 "Titan"||General Motors Diesel Division||1973||1||350 short tons (320,000 kg)||diesel-mechanical||Prototype, only 1 built|
|XCMG XDE400||XCMG||2016||400 metric tons (400,000 kg)||diesel-electric|
- Off-Highway Trucks from Caterpillar 2009.
- "CATERPILLAR 775G OFF-HIGHWAY TRUCK". ConstructionEquipment.com. May 16, 2011. Retrieved September 18, 2015.
- Orleman 2000, p. 15.
- Rogan, Alexander (5 March 2013). "BelAZ to build 450-tonne dump truck in 2013". Archived from the original on 28 September 2013.
|Wikimedia Commons has media related to Haul trucks.|
- Orleman, Eric C. (2000-11-10). Johnson, Paul (ed.). Building Giant Earthmovers. Motorbooks Colortech. United State of America: MBI Publishing Company. ISBN 978-0-7603-0640-6. Retrieved 2010-03-02.
The ultra-hauler class includes trucks with a capacity rating of 300 tons and above.
- "Off-Highway Trucks from Caterpillar". Caterpillar Website. Caterpillar Inc. 2009. Archived from the original on 2009-10-21. Retrieved 2009-10-21.
Developed specifically for high production mining and heavy-duty construction applications ...