Komatsu debuts high-horsepower haul truck

With a payload capacity of 101.6 short tons, the HD785-8 is built for aggregate producers. Photo courtesy of Komatsu America

Komatsu America introduced the new HD785-8 rigid-frame off-highway haul truck, with a Tier 4 Komatsu SAA12V140E-7 engine.

According to Komatsu America, the engine has the highest in-class net horsepower (1,140 hp) in North America.

With a payload capacity of 101.6 short tons, the haul truck is built for aggregate producers.

“The HD785-8 has excellent travel performance on grade, and wet multiple disc brakes on all four wheels provide great downhill brake retarding performance,” says Robert Hussey, product marketing manager at 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.”

With a tight turning radius of 33 ft., 2 in., the HD785-8 provides exceptional maneuverability when spotting to be loaded and positioning to dump, Komatsu America says. The Komatsu Traction Control System (KTCS) is standard on the HD785-8. KTCS automatically applies pressure to independent brake assemblies for optimum traction in various ground conditions, without the need for differential lockup, so steering performance is not compromised.

The KomVision all-around machine monitoring system, meanwhile, provides the operator with a bird’s-eye view of the working area on a dedicated monitor in the dash.

In addition, the HD785-8 has a seven-speed, fully automatic transmission with two selectable reverse speeds. The Komatsu Advanced Transmission with Optimum Modulation Control System (K-ATOMiCS) ensures smooth clutch engagement for a comfortable ride and reduced material spillage.