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794 AC Mining Truck
775 Off-Highway Truck

Weights - Approximate

Nominal Rated Payload 327 ton (US) - -
Rated Gross Machine Weight 1150000 lb - -
Chassis Weight 426237 lb - -
Body Weight 64346 lb - -
Note (1) Consult your tire manufacturer for maximum tire load. - -
Note (2) Chassis weight with full fuel and fluids, standard & mandatory attachments, hoist, body mounting group, rims, and tires - -
Note (3) Refer to Cat Mining Truck 10/10/20 Overload Policy (AEXQ0250) for maximum gross machine weight limitations. - -
Note (4) Tier 4 Final / Stage V chassis weight: 426312 lb (193372 kg) - -
Maximum Gross Vehicle Weight - 246503 lb -

Engine

Gross Power - SAE J1995 3500 HP 825 HP -
Standard Gross Power - SAE J1995 3500 HP - -
Engine Model Cat® C175-16 Cat® C27 -
Optional Gross Power - SAE J1995 3100 HP - -
Optional Gross Power - SAE J1995 (Option 2) 2750 HP - -
Rated Speed 1800 r/min - -
Net Power - SAE J1349 3405 HP 768 HP -
Emissions Rating Fuel Optimized - -
Bore 6.9 in 5.4 in -
Stroke 8.7 in 6 in -
Displacement 5187 in³ 1648 in³ -
Note (1) Contact factory for high altitude configuration. Power rating applies at 2,000 rpm when tested under the specified condition for the specified standard. -
Note (2) Tier 4 / EU Stage V option available for regions that require these emissions standards. 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) Tier 4 / EU Stage V engine option Net Power - SAE J1349: 3434 HP (2561 kW) No engine derating required up to 3810 m (12,500 ft) for Tier 2 Equivalent. -
Rated Engine Speed - 1800 r/min -
Net Power - 80/1269/EEC - 775 HP -
Net Power - ISO 9249 - 775 HP -
Engine Power - ISO 14396 - 812 HP -
Net Torque - 3148 ft-lb -
Peak Torque - Speed - 1200 r/min -
Emissions - Meets EU Stage V emission standards. -

Final Drives

Total Reduction Ratio 35:01:00 17.49:1 -
Differential Ratio - 3.64:1 -
Planetary Ratio - 4.80:1 -

Tires

Standard Tires 53/80 R63 - -
Rims 36" x 63" - -
Note (1) Quick Change Rims optional. 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 tire manufacturer for proper tire selection and TKPH (TMPH) capabilities. Caterpillar recommends the customer evaluate all job conditions and consult the tire manufacturer for proper tire selection. -
Standard Tire - 24.00R35 (E4) -

AC Drive System

Total Reduction Ratio 35:01:00 - -
Top Speed - Loaded 37 mile/h - -
Generator/Alternator Brushless, engine mounted, dual bearing - -
Controls IGBT Inverter Technology, air cooled, pressurized cabinet with filtration - -
Wheel Motor High-torque AC induction, rear axle mounted - -
Cooling System Variable speed, hydraulically driven cooling system - -

Braking System

Service Brakes Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated - -
Front Wet Disc Brake Surface Area 20378 in² - -
Rear - Wet Disc Brake Surface Area 30750 in² - -
Standards ISO 3450:2011 - -
Parking Brake Four-corner, Multi-disc, Spring applied, Hydraulically Released - -
Load Brake Rear service brakes - -
Dynamic Retarding Power - Continuous 5480 HP - -

Weight Distributions - Approximate

Front Axle - Empty 49 % 50 % -
Rear Axle - Empty 51 % 50 % -
Front Axle - Loaded 33 % 34 % -
Rear Axle - Loaded 67 % 66 % -

Body Hoists

Pump Flow - High Idle (HAA at 1,800 rpm) 221 gal/min - -
Pump Flow - High Idle (LAA at 1,960 rpm) 240 gal/min - -
Relief Valve Setting - Raise 3029 psi 2502 psi -
Body Raise Time - High Idle 24 s 10 s -
High Idle Body Lower Time - Float 20 s - -
Total Cycle Time 44 s - -
Note (1) Twin, two-stage hydraulic cylinders mounted inside main frame; double-acting cylinders in both stages. - -
Note (2) Power raise in both stages; power down in both stages possible. - -
Note (3) Automatic body-lower modulation reduces impact on frame. - -
Pump Flow - High Idle - 118 gal/min -
Relief Valve Setting - Lower - 500 psi -
Body Lower Time - Float - 14 s -
Body Power Down - High Idle - 14 s -

Capacity - HE Body - 100% fill factor

Struck 108-133 m³ (142-175 yd³) - -
Heaped (SAE 2:1) 180-222 m³ (236-290 yd³) - -
Dump Body Plate Thickness Varies Depending on Body Selection - Floor Plate 0.63 in - -
Dump Body Plate Thickness Varies Depending on Body Selection - Front Plate 0.35 in - -
Dump Body Plate Thickness Varies Depending on Body Selection - Side Plate 0.31 in - -
Dump Body Plate Thickness Varies Depending on Body Selection - Canopy Plate 0.2 in - -
Note Contact your local Cat dealer for body recommendations. - -

Service Refill Capacities

Fuel Tank 1300 gal (US) 210 gal (US) -
Cooling System 211 gal (US) 45 gal (US) -
Crankcase 82 gal (US) 24 gal (US) -
Final Drive - Each 67 gal (US) - -
Hydraulic Tank 296 gal (US) - -
Hydraulic System - Including Tank 385 gal (US) - -
Diesel Exhaust Fluid Tank 100 gal (US) - -
Note (1) DEF Tank only available for EPA Tier 4 / EU Stage V engine option. - -
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) -
Torque Converter - Transmission System - LRC - 16 gal (US) -
Brake/Hoist Hydraulic Tank - 46.5 gal (US) -
Torque Converter - Transmission System - HRC - 18 gal (US) -

Dimensions (Approximate)

Height - Top of ROPS 22.25 ft - -
Overall Length 50.75 ft - -
Wheel Base 21.83 ft - -
Rear Axle - Tail 15.5 ft - -
Ground Clearance 2.67 ft - -
Dump Clearance 3 ft - -
Loading Height - Empty 22.92 ft - -
Overall Height - Body Raised 48.42 ft - -
Centerline Front Tire Width 23 ft - -
Front Axle Clearance 3.17 ft - -
Canopy Width (without optional rock deflectors) 29.75 ft - -
Outside Body Width 29.75 ft - -
Inside Body Width 28.08 ft - -
Front Canopy Height 26.33 ft - -
Rear Axle - Clearance 3.08 ft - -
Centerline of Rear Dual Tire Width 18.75 ft - -
Overall Tire Width 28.67 ft - -
Overall Canopy Width 31.5 ft - -

Cab

ROPS Standards (1) Rollover Protective Structure (ROPS) meets ISO 3471:2008 criteria for operator and ISO 13459:2012 for trainer. - -
FOPS Standards Falling Object Protective Structure (FOPS) meets ISO 3449:2005 Level II for operator and ISO 13459:2012 Level II for trainer. - -

Sound

Sound Standards (1) The operator sound pressure level measured according to work cycle procedures specified in ISO 6394 and 6396 is 75 dB(A) for cab offered by Caterpillar when properly installed, maintained, and tested with doors and windows closed. 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) 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. 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

Steering Standards ISO 5010:2007 ISO 5010:2007 -
Note Gross Machine Operating Weight is 521 631 kg (1,150,000 lb). - -
Steer Angle 39 ° 31 ° -
Turning Diameter - Front - 77.1 ft -
Turning Circle - Clearance Diameter - 85.6 ft -

Operating Specifications

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

Capacity - Dual Slope - 100% Fill Factor

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

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 -

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. -

Brakes

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

Suspension

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

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. -

Sustainability

Recyclability - 98% -
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