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777 (07)
777 (07)
Off-Highway Trucks
The Cat® 777 is engineered to be the industry's most efficient 100-ton mechanical truck. With your input, we have designed and manufactured a reliable, durable, and economical truck, offering comfort, confidence, and control to its operators. With an improved access system designed to minimize slips and falls, this truck provides firm footing and stability in less-than-perfect conditions.
Engine Model
Cat® C32B
Gross Power - SAE J1995:2014
1025 hp/765 kW
Net Power - SAE J1349:2011
916 hp/683 kW
Bore
5.7 in/145 mm
Key Features
ACHIEVE GREATER PRODUCTIVITY
BOOST FUEL EFFICIENCY
DESIGNED FOR SAFETY
WORK IN COMFORT
TECHNOLOGY THAT GETS WORK DONE
REDUCED MAINTENANCE COSTS AND OTHER COSTS
APPLICATION VERSATILITY
DURABILITY
Specifications
Metric
|
Imperial
Engine 
Engine Model
Cat® C32B
Gross Power - SAE J1995:2014
1025 hp
765 kW
Net Power - SAE J1349:2011
916 hp
683 kW
Bore
5.7 in
145 mm
Stroke
6.4 in
162 mm
Displacement
1959 in³
32.1 l
Peak Torque - Speed
1200 r/min
1200 r/min
Engine Speed
1800 r/min
1800 r/min
Cylinders
12
Engine Power - ISO 14396
1008 hp
752 kW
Net Torque Rise
Tier 4: 39%. Tier 2: 37%
Note (1)
Power rating applies at 1,800 rpm when tested under the specified condition for the specified standard.
Note (2)
Ratings based on SAE J1995 standard air conditions of 25° C (77° F) and 100 kPa (29.61 Hg) barometer. Power based on fuel having API gravity of 35 at 16° C (60° F) and an LHV of 42 780 kJ/kg (18,390 BTU/lb) when engine used at 30° C (86° F).
Note (3)
Available as U.S. EPA Tier 4 Final/EU Stage V equivalent, Tier 3/Stage IIIA equivalent, or Tier 2/Stage II equivalent emission standards.
Note (4)
Meets China Nonroad Stage III emission standards equivalent to Tier 3 or Tier 2.
Weights - Approximate
Target Gross Machine Weight
363000 lb
164654 kg
Operating Specifications
Target Payload (100%)
101.1 ton (US)
91.7 t
Top Speed - Loaded
40.9 mile/h
65.9 km/h
Maximum Working Payload (110%)
111.2 ton (US)
100.9 t
Maximum Allowable Payload (120%)*
121.3 ton (US)
110.1 t
Body Capacity - SAE 2:1
83.1 yd³
63.5 m³
Note (1)
Power rating applies at 1,800 rpm when tested under the specified condition for the specified standard.
Note (2)
Ratings based on SAE J1995 standard air conditions of 25° C (77° F) and 100 kPa (29.61 Hg) barometer. Power based on fuel having API gravity of 35 at 16° C (60° F) and an LHV of 42 780 kJ/kg (18,390 BTU/lb) when engine used at 30° C (86° F).
Transmission
Forward - 1
6.6 mile/h
10.7 km/h
Forward - 2
9.1 mile/h
14.6 km/h
Forward - 3
11.9 mile/h
19.2 km/h
Forward - 4
16.6 mile/h
26.7 km/h
Forward - 5
22.5 mile/h
36.2 km/h
Forward - 6
30.2 mile/h
48.6 km/h
Forward - 7
40.9 mile/h
65.9 km/h
Reverse
7.5 mile/h
12.1 km/h
Note
Maximum travel speeds with standard 27.00R49 (E4) tires.
Final Drives
Differential Ratio
2.736:1
Planetary Ratio
7.0:1
Total Reduction Ratio
19.1576:1
Brakes
Brake Standards
ISO 3450-2011
Brake Surface Area - Front
6331 in²
40846 cm²
Brake Surface Area - Rear
15828 in²
102116 cm²
Body Hoists
Pump Flow - High Idle
120.9 gpm
458 L/min
Relief Valve Setting - Raise
2750 psi
18950 kPa
Relief Valve Setting - Lower
500 psi
3450 kPa
Body Raise Time - High Idle
15 s
15 s
Body Lower Time - Float
13 s
13 s
Body Lower Time - High Idle
13 s
13 s
Capacity - Dual Slope - 100% Fill Factor
Struck
54.8 yd³
41.9 m³
Heaped (SAE 2:1)*
78.6 yd³
60.1 m³
Note (1)
Power rating applies at 1,800 rpm when tested under the specified condition for the specified standard.
Note (2)
Ratings based on SAE J1995 standard air conditions of 25° C (77° F) and 100 kPa (29.61 Hg) barometer. Power based on fuel having API gravity of 35 at 16° C (60° F) and an LHV of 42 780 kJ/kg (18,390 BTU/lb) when engine used at 30° C (86° F).
Weight Distributions - Approximate
Front Axle - Empty
42 %
42 %
Front Axle - Loaded
33 %
33 %
Rear Axle - Empty
58 %
58 %
Rear Axle - Loaded
67 %
67 %
Suspension
Rear axle - Oscillation
5.4 °
5.4 °
Empty Loaded Cylinder Stroke Front
2.9 in
74.7 mm
Empty Loaded Cylinder Stroke Rear
2.5 in
66 mm
Service Refill Capacities
Fuel Tank (1)
300 gal (US)
1136 l
Fuel Tank (2)
350 gal (US)
1325 l
Cooling System
61 gal (US)
231 l
Crankcase
28.7 gal (US)
109 l
Differentials
59.9 gal (US)
227 l
Final Drive - Each
20 gal (US)
76 l
Steering System - Including Tank
14.1 gal (US)
53.6 l
Brake Hoist System
117 gal (US)
444 l
Torque Converter - Transmission System
36.5 gal (US)
138.5 l
Tires
Standard Tire
27.00R49 (E4)
Note (1)
Power rating applies at 1,800 rpm when tested under the specified condition for the specified standard.
Note (2)
Ratings based on SAE J1995 standard air conditions of 25° C (77° F) and 100 kPa (29.61 Hg) barometer. Power based on fuel having API gravity of 35 at 16° C (60° F) and an LHV of 42 780 kJ/kg (18,390 BTU/lb) when engine used at 30° C (86° F).
ROPS
ROPS Standards
Rollover Protective Structure (ROPS) for cab offered by Caterpillar meets ISO 3471:2008 ROPS criteria.
FOPS Standards
Falling Objects Protective Structure (FOPS) meets ISO 3449:2005 Level II FOPS criteria.
Sound
Sound Standards (1)
The operator Equivalent Sound Pressure Level (Leq) is 73 dB(A) when SAE J1166 FEB2008 is used to measure the value for an enclosed cab. This is a work cycle sound exposure level. The cab was properly installed and maintained. The test was conducted with the cab doors and the cab windows closed.
Sound Standards (2)
The exterior sound pressure level for the standard machine measured at a distance of 15 m (49 ft) according to the test procedures specified in SAE J88:2008, mid‑gear moving operation is 83 dB(A).
Sound Standards (3)
Hearing protection may be needed when operating with an open operator station and cab (when not properly maintained or doors/windows open) for extended periods or in a noisy environment.
Steering
Turning Diameter - Front
83 ft
25.3 m
Steering Standards
ISO 5010:2007
Steer Angle
30.5 °
30.5 °
Turning Circle - Clearance Diameter
93 ft
28.4 m
Capacity - X Body - 100% Fill Factor
Struck
54.8 yd³
41.9 m³
Heaped (SAE 2:1)*
78.6 yd³
60.1 m³
Note (1)
Power rating applies at 1,800 rpm when tested under the specified condition for the specified standard.
Note (2)
Ratings based on SAE J1995 standard air conditions of 25° C (77° F) and 100 kPa (29.61 Hg) barometer. Power based on fuel having API gravity of 35 at 16° C (60° F) and an LHV of 42 780 kJ/kg (18,390 BTU/lb) when engine used at 30° C (86° F).
Capacity - Coal Bodies - 100% Fill Factor
SAE 2:1 - For use with material densities of 1160 kg/m3 (1,950 lb/yd3)
116.8 yd³
89.3 m³
SAE 2:1 - For use with material densities of 1040-1160 kg/m3 (1,750-1,950 lb/yd3)
139 yd³
106 m³
SAE 2:1 - For use with material densities of 950-1040 kg/m3 (1,600-1,750 lb/yd3)
144 yd³
110 m³
SAE 2:1 - For use with material densities less than 950 kg/m3 (1,600 lb/yd3)
164.6 yd³
125.9 m³
Equipment
Standard Equipment
Optional Equipment
