The HD785-8 is the latest off-highway haul truck from Japanese manufacturer Komatsu. It is designed for mining, quarry and aggregate applications. Powered by a Tier 4 Komatsu SAA12V140E-7 engine, the HD785-8 has a horsepower of 1140—the most in North America, according to Kobelco—and a payload capacity of 92.2 metric tonnes.
But it’s not all about power. The HD785-8 offers excellent control and maneuverability thanks to a turning radius of 10 m and a 7-speed fully automatic transmission. It also features the Komatsu Traction Control System, which “automatically applies pressure to independent brake assemblies for optimum traction in various ground conditions, without the need for differential lock-up, so steering performance is not compromised.”
The HD785-8 comes standard with two additional automatic systems: the Komatsu Advanced Transmission with Optimum Modulation Control System and the Automatic Retard Speed Control. The former facilitates a smoother, more comfortable ride, while the latter controls the truck’s speed going downhill. Adding to downhill control are four oil-cooled, multiple-disc brakes.
The cab includes an updated seat that provides greater comfort, and is easily accessed by standard diagonal angled steps. Meanwhile, safety is enhanced by Komatsu’s KomVision monitoring system, which employs 6 cameras to give the operator a 360-degree view of their surroundings.
“The HD785-8 has excellent travel performance on grade, and wet multiple disc brakes on all four wheels provide great downhill brake retarding performance,” said Robert Hussey, product marketing manager, Komatsu America. “The HD785-8 delivers fast acceleration out of the pit and the new cab keeps operators comfortable during long shifts, resulting in high production per hour.”
Established in 1921 and headquartered in Tokyo, Komatsu is one of the largest manufacturers of construction, mining and forestry equipment in the world—second only to Caterpillar. It also produces tunneling machinery and forklift trucks.
Learn more about the HD785-8 on Komatsu America’s website.