Off-Highway Trucks

775G Off-Highway Truck

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Specification Summary

Nominal Payload Class (100%)
70.5 ton (US)
Engine Model
Cat® C27 ACERT™
Top Speed - Loaded
41.6 mile/h
Rated Engine Speed
1800 r/min
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Engine

Engine Model
Cat® C27 ACERT™
Rated Engine Speed
1800 r/min
Gross Power - SAE J1995
825 HP
Net Power - SAE J1349
768 HP
Net Power - 80/1269/EEC
775 HP
Net Power - ISO 9249
775 HP
Bore
5.4 in
Stroke
6 in
Displacement
1648 in³
Engine Power - ISO 14396
812 HP
Net Torque
3148 ft-lb
Peak Torque - Speed
1200 r/min
Emissions
Meets EU Stage V emission standards.
Note (1)
Power rating applies at 2,000 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)
No engine derating required up to 3810 m (12,500 ft) for Tier 2 Equivalent.

Weights - Approximate

Maximum Gross Vehicle Weight
246503 lb

Operating Specifications

Nominal Payload Class (100%)
70.5 ton (US)
Top Speed - Loaded
41.6 mile/h
Body Capacity - SAE 2:1
55.23 yd³
Maximum Working Payload (110%)
77.5 ton (US)
Maximum Allowable Payload (120%)*
84.6 ton (US)
Note (1)
Capacity with Dual Slope body – no liner.
Note (2)
* Refer to the Caterpillar 10/10/20 Payload Policy for maximum gross machine weight limitations.
Target Payload (100%)
70.5 ton (US)

Transmission

Forward - 1
6.6 mile/h
Forward - 2
9.3 mile/h
Forward - 3
12.6 mile/h
Forward - 4
16.8 mile/h
Forward - 5
22.8 mile/h
Forward - 6
30.7 mile/h
Forward - 7
41.6 mile/h
Reverse
8.7 mile/h
Note
Maximum travel speeds with standard 24.00R35 (E4) tires.

Final Drives

Differential Ratio
3.64:1
Planetary Ratio
4.80:1
Total Reduction Ratio
17.49:1

Brakes

Brake Surface - Front
257 in²
Brake Surface - Rear
9497 in²
Brake Standards
ISO 3450:2011

Body Hoists

Pump Flow - High Idle
118 gal/min
Relief Valve Setting - Raise
2502 psi
Relief Valve Setting - Lower
500 psi
Body Raise Time - High Idle
10 s
Body Lower Time - Float
14 s
Body Power Down - High Idle
14 s

Capacity - Dual Slope - 100% Fill Factor

Struck
42.7 yd³
Note (2)
*ISO 6483:1980
Heaped (SAE 2:1)*
55.5 yd³
Note (1)
Contact your local Cat dealer for body recommendation.

Capacity - Flat Floor - 100% Fill Factor

Struck
42.2 yd³
Heaped (SAE 2:1)*
55.2 yd³
Note (1)
Contact your local Cat dealer for body recommendation.
Note (2)
*ISO 6483:1980

Weight Distributions - Approximate

Front Axle - Empty
50 %
Front Axle - Loaded
34 %
Rear Axle - Empty
50 %
Rear Axle - Loaded
66 %

Suspension

Empty Loaded Cylinder Stroke Front
9.2 in
Empty Loaded Cylinder Stroke Rear
5.8 in
Rear axle - Oscillation
8.1°

Service Refill Capacities

Fuel Tank
210 gal (US)
Cooling System
45 gal (US)
Differential - Final Drives
38 gal (US)
Steering Tank
9.5 gal (US)
Steering System - Including Tank
14 gal (US)
Brake Hoist System
85 gal (US)
Brake/Hoist Hydraulic Tank
46.5 gal (US)
Crankcase
24 gal (US)
Torque Converter - Transmission System - HRC
18 gal (US)
Torque Converter - Transmission System - LRC
16 gal (US)

Tires

Note (1)
Productive capabilities of the 775G truck are such that, under certain job conditions, TKPH (TMPH) capabilities of standard or optional tires could be exceeded and, therefore, limit production.
Note (2)
Caterpillar recommends the customer evaluate all job conditions and consult the tire manufacturer for proper tire selection.
Standard Tire
24.00R35 (E4)

ROPS

FOPS Standards
Falling Objects Protective Structure (FOPS) meets ISO 3449:2005 Level II FOPS criteria.
ROPS Standards
Rollover Protective Structure (ROPS) for cab offered by Caterpillar meets ISO 3471:2008 ROPS criteria.

Sound

Sound Standards (1)
The operator Equivalent Sound Pressure Level (Leq) is 76 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 t
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 86 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
77.1 ft
Steering Standards
ISO 5010:2007
Steer Angle
31 °
Turning Circle - Clearance Diameter
85.6 ft
Engine Model
Cat® C27 ACERT™
Rated Engine Speed
1800 r/min
Gross Power - SAE J1995
825 HP
Net Power - SAE J1349
768 HP
Net Power - 80/1269/EEC
775 HP
Net Power - ISO 9249
775 HP
Bore
5.4 in
Stroke
6 in
Displacement
1648 in³
Engine Power - ISO 14396
812 HP
Net Torque
3148 ft-lb
Peak Torque - Speed
1200 r/min
Emissions
Meets EU Stage V emission standards.
Note (1)
Power rating applies at 2,000 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)
No engine derating required up to 3810 m (12,500 ft) for Tier 2 Equivalent.
Maximum Gross Vehicle Weight
246503 lb
Nominal Payload Class (100%)
70.5 ton (US)
Top Speed - Loaded
41.6 mile/h
Body Capacity - SAE 2:1
55.23 yd³
Maximum Working Payload (110%)
77.5 ton (US)
Maximum Allowable Payload (120%)*
84.6 ton (US)
Note (1)
Capacity with Dual Slope body – no liner.
Note (2)
* Refer to the Caterpillar 10/10/20 Payload Policy for maximum gross machine weight limitations.
Target Payload (100%)
70.5 ton (US)
Forward - 1
6.6 mile/h
Forward - 2
9.3 mile/h
Forward - 3
12.6 mile/h
Forward - 4
16.8 mile/h
Forward - 5
22.8 mile/h
Forward - 6
30.7 mile/h
Forward - 7
41.6 mile/h
Reverse
8.7 mile/h
Note
Maximum travel speeds with standard 24.00R35 (E4) tires.
Differential Ratio
3.64:1
Planetary Ratio
4.80:1
Total Reduction Ratio
17.49:1
Brake Surface - Front
257 in²
Brake Surface - Rear
9497 in²
Brake Standards
ISO 3450:2011
Pump Flow - High Idle
118 gal/min
Relief Valve Setting - Raise
2502 psi
Relief Valve Setting - Lower
500 psi
Body Raise Time - High Idle
10 s
Body Lower Time - Float
14 s
Body Power Down - High Idle
14 s
Struck
42.7 yd³
Note (2)
*ISO 6483:1980
Heaped (SAE 2:1)*
55.5 yd³
Note (1)
Contact your local Cat dealer for body recommendation.
Struck
42.2 yd³
Heaped (SAE 2:1)*
55.2 yd³
Note (1)
Contact your local Cat dealer for body recommendation.
Note (2)
*ISO 6483:1980
Front Axle - Empty
50 %
Front Axle - Loaded
34 %
Rear Axle - Empty
50 %
Rear Axle - Loaded
66 %
Empty Loaded Cylinder Stroke Front
9.2 in
Empty Loaded Cylinder Stroke Rear
5.8 in
Rear axle - Oscillation
8.1°
Fuel Tank
210 gal (US)
Cooling System
45 gal (US)
Differential - Final Drives
38 gal (US)
Steering Tank
9.5 gal (US)
Steering System - Including Tank
14 gal (US)
Brake Hoist System
85 gal (US)
Brake/Hoist Hydraulic Tank
46.5 gal (US)
Crankcase
24 gal (US)
Torque Converter - Transmission System - HRC
18 gal (US)
Torque Converter - Transmission System - LRC
16 gal (US)
Note (1)
Productive capabilities of the 775G truck are such that, under certain job conditions, TKPH (TMPH) capabilities of standard or optional tires could be exceeded and, therefore, limit production.
Note (2)
Caterpillar recommends the customer evaluate all job conditions and consult the tire manufacturer for proper tire selection.
Standard Tire
24.00R35 (E4)
FOPS Standards
Falling Objects Protective Structure (FOPS) meets ISO 3449:2005 Level II FOPS criteria.
ROPS Standards
Rollover Protective Structure (ROPS) for cab offered by Caterpillar meets ISO 3471:2008 ROPS criteria.
Sound Standards (1)
The operator Equivalent Sound Pressure Level (Leq) is 76 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 t
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 86 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.
Turning Diameter - Front
77.1 ft
Steering Standards
ISO 5010:2007
Steer Angle
31 °
Turning Circle - Clearance Diameter
85.6 ft

Caterpillar offers partial machines and systems, working with Cat dealers and Original Equipment Manufacturers (OEMs) to provide specialty machines for specific applications. Bare chassis trucks (WTR models) can be ordered with or without hoist cylinders and most product options are identical to the dump truck models. Typically, these models come equipped with the higher Tractor ROPS certificaiton ratings needed for specialty machines including water trucks, tow tractors and fuel and lube trucks. You’ll find these partial machine configurations are used in construction, demolition, waste, material handling, and mining industries and allow you to purchase complete solutions from your Cat dealer, using Cat equipment every step of the way.