Overview
The Komatsu HD320-3 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 405 hp, travel speed of 38.6 mph, fuel capacity of 132.1 gal and hydraulic capacity of 29.1 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 HD320-3 Rock Truck against similar articulated dump truck models by power, weight, capacity, dimensions, speed, and other technical values.
Key Specifications
Gross Power
405
hp
Rated Payload
64,000
lb
Overall Length
25.10
ft
Overall Width
12.05
ft
Full Specifications
30 specs
Dimensions
Dump Angle
61 deg
Dump Ground Clearance
1.45 ft / 0.44 m
Dump Height
24.68 ft / 7.52 m
Ground Clearance
1.51 ft / 0.46 m
Load Capacity - Heaped
31 lb / 14 kg
Overall Height
12.64 ft / 3.85 m
Overall Length
25.10 ft / 7.65 m
Overall Width
12.05 ft / 3.67 m
Rated Payload
64,000 lb / 29,030 kg
Wheelbase
12.31 ft / 3.75 m
Engine
Cooling System Fluid Capacity
35.20 gal / 133.2 L
Diff And Final Drive Fluid Capacity
18.80 gal / 71.2 L
Displacement
855 cu in / 14.0 L
Empty Weight
56,769 lb / 25,750 kg
Engine Make
2347
Engine Model
NTA855
Engine Oil Capacity
6.70 gal / 25.4 L
Fuel Capacity
132.10 gal / 500.1 L
Gross Power
405 hp / 302.0 kW
Hydraulic System Fluid Capacity
29.10 gal / 110.2 L
Load Capacity - Heaped
52.40 yd³ / 40.06 m³
Loaded Weight
127,317 lb / 57,750 kg
Max Speed
38.60 mph / 62.1 km/h
Number Of Gears - Forward
6
Number Of Gears - Reverse
1
Tire Size
18 in / 457 mm
Weight Distribution Front - Empty
48 lb / 22 kg
Weight Distribution Front - Loaded
32 lb / 15 kg
Weight Distribution Rear - Empty
52 lb / 24 kg
Weight Distribution Rear - Loaded
68 lb / 31 kg
Related Machines
Frequently Asked Questions
How powerful is the Komatsu HD320-3 Rock Truck engine? +
The Komatsu HD320-3 Rock Truck produces 405 hp (302.0 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 HD320-3 Rock Truck compare to similar Articulated Dump Truck models? +
You can compare the Komatsu HD320-3 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.