Overview
The Caterpillar 770 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 476 hp, travel speed of 46.5 mph, fuel capacity of 140.0 gal and hydraulic capacity of 25.0 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 Caterpillar 770 Rock Truck against similar articulated dump truck models by power, weight, capacity, dimensions, speed, and other technical values.
Key Specifications
Net Power
485
hp
Gross Power
511
hp
Rated Payload
80,000
lb
Overall Length
28.67
ft
Full Specifications
113 specs
Dimensions
Centerline Front Tire Width
10.20 ft / 3.11 m
Centerline Of Rear Dual Tire Width
8.32 ft / 2.54 m
Dump Angle
47.50 deg
Dump Ground Clearance
1.58 ft / 0.48 m
Dump Height
27.17 ft / 8.28 m
Engine Guard Clearance
2.21 ft / 0.67 m
Front Canopy Height
13.58 ft / 4.14 m
Ground Clearance
2.23 ft / 0.68 m
Height - Top Of Rops
12.83 ft / 3.91 m
Inside Body Depth - Maximum
4.35 ft / 1.33 m
Inside Body Length
18.21 ft / 5.55 m
Inside Body Width
12.13 ft / 3.70 m
Load Capacity - Heaped
33 lb / 15 kg
Load Capacity - Struck
22 lb / 10 kg
Loading Height - Empty
10.24 ft / 3.12 m
Operating Width
15.59 ft / 4.75 m
Overall Body Length
26.81 ft / 8.17 m
Overall Canopy Width
13 ft / 3.96 m
Overall Height
10.24 ft / 3.12 m
Overall Height - Body Raised
27.17 ft / 8.28 m
Overall Length
28.67 ft / 8.74 m
Overall Tire Width
12.12 ft / 3.69 m
Overall Width
15.59 ft / 4.75 m
Rated Payload
80,000 lb / 36,287 kg
Rear Axle - Clearance
1.67 ft / 0.51 m
Rear Axle - Tail
9 lb / 4 kg
Wheel Base
13 in / 330 mm
Wheelbase
12.99 ft / 3.96 m
Engine
9.9 mile/h
1
Body Power Down - High Idle
12.50
Bore
5.40 in / 137 mm
Brake Surface - Front
216
Brake Surface - Rear
6,235
Brake/Hoist System Fluid Capacity
73 gal / 276.3 L
Cooling System Fluid Capacity
30 gal / 113.6 L
Diff And Final Drive Fluid Capacity
42 gal / 159.0 L
Differential Ratio
2.74
Displacement
928 cu in / 15.2 L
Empty Weight
75,490 lb / 34,242 kg
Engine Make
2236
Engine Model
C15 ACERT
Engine Oil Capacity
56 gal / 212.0 L
Forward - 1
7.50 mph / 12.1 km/h
Forward - 2
10.30 mph / 16.6 km/h
Forward - 3
14 mph / 22.5 km/h
Forward - 4
18.80 mph / 30.3 km/h
Forward - 5
25.40 mph / 40.9 km/h
Forward - 6
34.30 mph / 55.2 km/h
Forward - 7
46.50 mph / 74.8 km/h
Front Axle - Empty
48 lb / 22 kg
Front Axle - Loaded
34 lb / 15 kg
Fuel Capacity
140 gal / 530.0 L
Fuel Tank
140 gal / 530.0 L
Gross Power
511 hp / 381.1 kW
Gross Power - Sae J1995
511 hp / 381.1 kW
Hydraulic System Fluid Capacity
25 gal / 94.6 L
Loaded Weight
157,000 lb / 71,214 kg
Max Speed
46.50 mph / 74.8 km/h
Max Torque
1,711 lb-ft / 2,320 Nm
Net Power
476 hp / 355.0 kW
Net Power - 80/1269/Eec
476 hp / 355.0 kW
Net Power - Iso 9249:1997
476 hp / 355.0 kW
Net Power - Sae J1349
476 hp / 355.0 kW
Number Of Gears - Forward
7
Number Of Gears - Reverse
1
Number of Cylinders
6
Peak Torque
1,711 lb-ft / 2,320 Nm
Planetary Ratio
4.80
Power Measured @
1,800 rpm
Pump Flow - High Idle
136 gal/min / 514.8 L/min
Rated Engine Speed
1,800 rpm
Rear Axle - Empty
52 lb / 24 kg
Rear Axle - Loaded
66 lb / 30 kg
Relief Valve Setting - Lower
500 psi / 34.5 bar
Relief Valve Setting - Raise
2,500 psi / 172.4 bar
Reverse
9.90
Steering Standards
5,010
Steering System Fluid Capacity
15 gal / 56.8 L
Stroke
6.70 in / 170 mm
Total Reduction Ratio
13.15
Weight Distribution Front - Empty
48 lb / 22 kg
Weight Distribution Front - Loaded
34 lb / 15 kg
Weight Distribution Rear - Empty
52 lb / 24 kg
Weight Distribution Rear - Loaded
66 lb / 30 kg
Hydraulics
Brake Standards
3,450
Lower Time
12.50 sec
Raise Time
9.50 sec
Other
Body Capacity - Sae 2:1
32.80
Dump Clearance
1.52 ft / 0.46 m
Maximum Capacity
80,000
Nominal Payload Class (100%)
80,000 lb / 36,287 kg
Steer Angle
40 deg
Target Payload Capacity
80,000 lb / 36,287 kg
Top Speed - Loaded
47 lb / 21 kg
Body Weight
22,110 lb / 10,029 kg
Brake / Hoist / Fan Hydraulic Tank
35 gal / 132.5 L
Brake/Hoist/Fan System (Tank)
73 gal / 276.3 L
Chassis Weight
53,380 lb / 24,213 kg
Cooling System
30 gal / 113.6 L
Crankcase
9 gal / 34.1 L
Differential - Final Drives
22
Effective Cylinder Stroke - Front
9.20 in / 234 mm
Effective Cylinder Stroke - Rear
5.90 in / 150 mm
Heaped 2:1 (Sae)
32.80
Load Capacity - Heaped
31.70 yd³ / 24.24 m³
Net Power
485 hp / 361.7 kW
Rear Axle - Oscillation
5 lb / 2 kg
Steering System - Including Tank
15 gal / 56.8 L
Steering Tank
9 gal / 34.1 L
Struck
21.50
Target Gross Machine Operating Weight
157,000 lb / 71,214 kg
Transmission - Torque Converter Sump
14 lb-ft / 19 Nm
Transmission - Torque Converter System - Including Sump
19 lb-ft / 26 Nm
Related Machines
Frequently Asked Questions
How powerful is the Caterpillar 770 Rock Truck engine? +
The Caterpillar 770 Rock Truck produces 511 hp (381.1 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 Caterpillar 770 Rock Truck compare to similar Articulated Dump Truck models? +
You can compare the Caterpillar 770 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.