Komatsu HD785-8 Off-Highway Truck

December 13, 2019
Komatsu HD785-8 haul truck works a mine.
Komatsu HD785-8 mining truck has a 7-speed, fully automatic transmission.

Komatsu haul truck model HD785-8 is a rigid frame off-highway truck with a payload capacity of 101 tons. Powered by a 1,140-horsepower Komatsu SAA12V140E-7 engine, it has a turning radius of 33 feet 2 inches.

The Komatsu Traction Control System (KTCS) automatically applies pressure to independent brake assemblies for optimum traction in various ground conditions. KomVision all-around machine monitoring system provides the operator with a bird’s-eye view of the working area on a dedicated monitor in the dash.

The mining truck has a 7-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.

The Automatic Retard Speed Control (ARSC) automatically maintains a selected downhill travel speed (rather than engine RPM) to let operators keep their focus on the haul road.