Rigid-frame truck delivers more hauling cycles for increased production

HD785-8 Truck

Mining, quarry and aggregate operations want to move large quantities of material as quickly as possible. Trucks with a tight turning radius, that are highly maneuverable when spotting to be loaded and positioning to dump, can provide an advantage in achieving those goals.

With a turning radius of 33 feet, 2 inches, Komatsu’s new 1,140 net horsepower HD785-8 rigid-frame, off-highway truck helps users reach their objectives while delivering a payload capacity of 101.6 tons. The truck has a 7-speed, fully automatic transmission with two selectable reverse speeds. The Komatsu Advanced Transmission with Optimum Modulation Control System ensures smooth clutch engagement for a more comfortable ride and reduced material spillage.

Get more done in less time

“Thanks to its Tier 4 engine, the HD785-8 has the highest in-class horsepower in North America for the best travel performance on grade,” said Robert Hussey, Komatsu Product Marketing Manager. “Additionally, it delivers fast acceleration out of the pit when loaded and short return times to the loading area for more hauling cycles and increased production per hour.”

Robert Hussey,
Komatsu Product Marketing Manager

“Thanks to its Tier 4 engine, the HD785-8 has the highest in-class horsepower in North America for the best travel performance on grade,” said Robert Hussey, Komatsu Product Marketing Manager. “Additionally, it delivers fast acceleration out of the pit when loaded and short return times to the loading area for more hauling cycles and increased production per hour.”

The Komatsu Traction Control System is standard and 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 wet multiple disc brakes on all four wheels provide excellent downhill brake retarding performance,” said Hussey. “The Automatic Retard Speed Control maintains a selected downhill travel speed, rather than engine RPM, so operators can keep their focus on the haul road.

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