Overview
The Komatsu HD785-1 Rock Truck is a articulated dump truck listed in the Heavy Equipment Hub equipment database with structured specifications for comparison, research, and machine selection. Key specification points include engine power of 877 hp, travel speed of 43.5 mph, fuel capacity of 327.6 gal and hydraulic capacity of 121.6 gal. This model can be reviewed for equipment comparison, jobsite planning, fleet research, and specification-based machine selection. Use the full specifications table to compare the Komatsu HD785-1 Rock Truck against similar articulated dump truck models by power, weight, capacity, dimensions, speed, and other technical values.
Key Specifications
Net Power
877
hp
Gross Power
900
hp
Rated Payload
171,960.56
lb
Overall Length
33.24
ft
Full Specifications
30 specs
Dimensions
Dump Angle
64 deg
Dump Ground Clearance
2.96 ft / 0.90 m
Dump Height
29.53 ft / 9.00 m
Ground Clearance
2.56 ft / 0.78 m
Load Capacity - Heaped
68 lb / 31 kg
Overall Height
15.98 ft / 4.87 m
Overall Length
33.24 ft / 10.13 m
Overall Width
16.41 ft / 5.00 m
Rated Payload
171,961 lb / 78,000 kg
Wheelbase
15.59 ft / 4.75 m
Engine
Cooling System Fluid Capacity
63.50 gal / 240.4 L
Diff And Final Drive Fluid Capacity
59.20 gal / 224.1 L
Displacement
2,307 cu in / 37.8 L
Empty Weight
113,538 lb / 51,500 kg
Engine Make
2347
Engine Model
KT-2300
Engine Oil Capacity
39.70 gal / 150.3 L
Fuel Capacity
327.60 gal / 1,240.1 L
Gross Power
900 hp / 671.1 kW
Hydraulic System Fluid Capacity
121.60 gal / 460.3 L
Load Capacity - Heaped
64.80 yd³ / 49.54 m³
Loaded Weight
285,620 lb / 129,555 kg
Max Speed
43.50 mph / 70.0 km/h
Net Power
877 hp / 654.0 kW
Number Of Gears - Forward
6
Number Of Gears - Reverse
1
Weight Distribution Front - Empty
48 lb / 22 kg
Weight Distribution Front - Loaded
32 lb / 15 kg
Weight Distribution Rear - Empty
52 lb / 23 kg
Weight Distribution Rear - Loaded
68 lb / 31 kg
Related Machines
Frequently Asked Questions
How powerful is the Komatsu HD785-1 Rock Truck engine? +
The Komatsu HD785-1 Rock Truck produces 900 hp (671.1 kW) of engine power. This output is typical for its weight class and designed to handle demanding Articulated Dump Truck work cycles efficiently.
How does the Komatsu HD785-1 Rock Truck compare to similar Articulated Dump Truck models? +
You can compare the Komatsu HD785-1 Rock Truck side by side with any other model using the Heavy Equipment Hub compare tool. Key comparison points include engine power, operating weight, digging depth, hydraulic flow, and overall dimensions.