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 775 Off-Highway Truck |
 770 Off-Highway Truck |
 794 AC Mining Truck |
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Operating Specifications |
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| Nominal Payload Class (100%) | 70.5 ton (US) | 42.1 ton (US) | - |
| Top Speed - Loaded | 41.6 mile/h | 45.8 mile/h | - |
| Maximum Working Payload (110%) | 77.5 ton (US) | 46.3 ton (US) | - |
| Target Payload (100%) | 70.5 ton (US) | 42.1 ton (US) | - |
| Maximum Allowable Payload (120%)* | 84.6 ton (US) | 50.5 ton (US) | - |
| Note (2) | * Refer to the Caterpillar 10/10/20 Payload Policy for maximum gross machine weight limitations. | Target payload and capacity based on Dual Slope body with no liner. Attachment selection will affect payload and maximum gross machine operating weight. | - |
| Note (1) | Capacity with Dual Slope body – no liner. | *Refer to Caterpillar 10/10/20 Payload Policy for maximum gross machine weight limitations. | - |
| Body Capacity - SAE 2:1 | 55.23 yd³ | 32.9 yd³ | - |
Engine |
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| Engine Model | Cat® C27 | Cat® C15 | Cat® C175-16 |
| Rated Engine Speed | 1800 r/min | 1700 r/min | - |
| Gross Power - SAE J1995:2014 | 825 hp | 515 hp | - |
| Net Power - SAE J1349:2011 | 768 hp | 477 hp | - |
| Net Power - 80/1269/EEC | 775 hp | 489 hp | - |
| Net Power - ISO 9249 | 775 hp | 477 hp | - |
| Bore | 5.4 in | 5.4 in | 6.9 in |
| Stroke | 6 in | 6.7 in | 8.7 in |
| Displacement | 1648 in³ | 927.6 in³ | 5187 in³ |
| Engine Power - ISO 14396 | 812 hp | - | - |
| 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). | 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). | Tier 4 / EU Stage V option available for regions that require these emissions standards. |
| Net Torque | 3148 ft-lb | - | - |
| Peak Torque - Speed | 1200 r/min | - | - |
| Note (1) | Power rating applies at 2,000 rpm when tested under the specified condition for the specified standard. | Power rating applies at 1,700 rpm when tested under the specified condition for the specified standard. | Contact factory for high altitude configuration. |
| Note (3) | No engine derating required up to 3810 m (12,500 ft) for Tier 2 Equivalent. | No engine derating required up to 3000 m (9,843 ft) altitude. | Tier 4 / EU Stage V engine option Net Power - SAE J1349: 3434 HP (2561 kW) |
| Emissions | Meets EU Stage V emission standards. | Meets U.S. EPA Tier 4 and EU Stage V emission standards. | - |
| Net Power - ISO 14396 | - | 508 hp | - |
| Net Torque - SAE J1349 | - | 1834 ft·lbf | - |
| Number of Cylinders | - | 6 | - |
| Note (4) | - | Meets Japan Small Volume Exemption. | - |
| Gross Power - SAE J1995 | - | - | 3500 hp |
| Standard Gross Power - SAE J1995 | - | - | 3500 hp |
| 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 |
| Emissions Rating | - | - | Fuel Optimized |
Capacity - Dual Slope - 100% Fill Factor |
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| Struck | 42.7 yd³ | 23.01 yd³ | - |
| Heaped (SAE 2:1)* | 55.5 yd³ | 32.9 yd³ | - |
| Note (1) | Contact your local Cat dealer for body recommendation. | Contact your local Cat dealer for body recommendation. | - |
| Note (2) | *ISO 6483:1980 | *ISO 6483:1980. | - |
Capacity - Flat Floor - 100% Fill Factor |
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| Struck | 42.2 yd³ | 23.01 yd³ | - |
| Heaped (SAE 2:1)* | 55.2 yd³ | 32.9 yd³ | - |
| Note (1) | Contact your local Cat dealer for body recommendation. | Contact your local Cat dealer for body recommendation. | - |
| Note (2) | *ISO 6483:1980 | *ISO 6483:1980. | - |
Weight Distributions - Approximate |
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| Front Axle - Empty | 50 % | 49 % | 49 % |
| Front Axle - Loaded | 34 % | 34 % | 33 % |
| Rear Axle - Empty | 50 % | 51 % | 51 % |
| Rear Axle - Loaded | 66 % | 66 % | 67 % |
Transmission |
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| Forward - 1 | 6.6 mile/h | 7.4 mile/h | - |
| Forward - 2 | 9.3 mile/h | 10.1 mile/h | - |
| Forward - 3 | 12.6 mile/h | 13.8 mile/h | - |
| Forward - 4 | 16.8 mile/h | 18.5 mile/h | - |
| Forward - 5 | 22.8 mile/h | 25.1 mile/h | - |
| Forward - 6 | 30.7 mile/h | 33.8 mile/h | - |
| Forward - 7 | 41.6 mile/h | 45.8 mile/h | - |
| Reverse | 8.7 mile/h | 8.8 mile/h | - |
| Note | Maximum travel speeds with standard 24.00R35 (E4) tires. | Maximum travel speeds with standard 18.00R33 (E4) tires. | - |
Final Drives |
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| Differential Ratio | 3.64:1 | 1.92:1 | - |
| Planetary Ratio | 4.80:1 | 4.80:1 | - |
| Total Reduction Ratio | 17.49:1 | 9.26:1 | 35:01:00 |
Brakes |
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| Brake Surface - Front | 257 in² | 216 in² | - |
| Brake Surface - Rear | 9497 in² | 6235 in² | - |
| Brake Standards | ISO 3450:2011 | ISO 3450:2011 | - |
| Note | - | Target gross machine operating weight is 71 214 kg (157,000 lb). | - |
Service Refill Capacities |
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| Fuel Tank | 210 gal (US) | 140 gal (US) | 1300 gal (US) |
| Cooling System | 45 gal (US) | 33 gal (US) | 211 gal (US) |
| Differential - Final Drives | 38 gal (US) | 47 gal (US) | - |
| Steering Tank | 9.5 gal (US) | 14.5 gal (US) | - |
| Steering System - Including Tank | 14 gal (US) | 23 gal (US) | - |
| Brake Hoist System | 85 gal (US) | 60 gal (US) | - |
| Torque Converter - Transmission System - LRC | 16 gal (US) | - | - |
| Crankcase | 24 gal (US) | 17 gal (US) | 82 gal (US) |
| Brake/Hoist Hydraulic Tank | 46.5 gal (US) | 38 gal (US) | - |
| Torque Converter - Transmission System - HRC | 18 gal (US) | - | - |
| Torque Converter - Transmission System | - | 17 gal (US) | - |
| DEF Tank | - | 6 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. |
Body Hoists |
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| Pump Flow - High Idle | 118 gal/min | 118 gal/min | - |
| Relief Valve Setting - Raise | 2502 psi | 2750 psi | 3029 psi |
| Relief Valve Setting - Lower | 500 psi | 500 psi | - |
| Body Raise Time - High Idle | 10 s | 7.5 s | 24 s |
| Body Lower Time - Float | 14 s | 10 s | - |
| Body Power Down - High Idle | 14 s | 10 s | - |
| Pump Flow - High Idle (HAA at 1,800 rpm) | - | - | 221 gal/min |
| Pump Flow - High Idle (LAA at 1,960 rpm) | - | - | 240 gal/min |
| 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. |
Weights - Approximate |
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| Maximum Gross Vehicle Weight | 246503 lb | - | - |
| Target Gross Machine Operating Weight | - | 157000 lb | - |
| Target Gross Machine Weight | - | 157000 lb | - |
| Chassis Weight | - | 55948 lb | 426237 lb |
| Body Weight | - | 17306 lb | 64346 lb |
| Note (1) | - | Chassis weight with 100% fuel, hoist, body mounting group, rims, and tires. | Consult your tire manufacturer for maximum tire load. |
| Note (2) | - | Body weight is the standard Dual Slope body with no liner and will vary depending on configuration. | Chassis weight with full fuel and fluids, standard & mandatory attachments, hoist, body mounting group, rims, and tires |
| Nominal Rated Payload | - | - | 327 ton (US) |
| Rated Gross Machine Weight | - | - | 1150000 lb |
| 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) |
Suspension |
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| Empty Loaded Cylinder Stroke Front | 9.2 in | 9.2 in | - |
| Rear Axle - Oscillation | 8.1° | - | - |
| Empty Loaded Cylinder Stroke Rear | 5.8 in | 5.9 in | - |
| Rear axle - Oscillation | - | 8.9 ° | - |
Tires |
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| Note (2) | Caterpillar recommends the customer evaluate all job conditions and consult the tire manufacturer for proper tire selection. | Caterpillar recommends the customer evaluates all job conditions and consults the tire manufacturer for proper tire selection. | Caterpillar recommends the customer evaluate all job conditions and consult tire manufacturer for proper tire selection and TKPH (TMPH) capabilities. |
| 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. | Productive capabilities of the 770G truck are such that, under certain job conditions, TKPH (TMPH) capabilities of standard or optional tires could be exceeded and, therefore, limit production. | Quick Change Rims optional. |
| Standard Tire | 24.00R35 (E4) | 18.00R33 (E4) | - |
| Standard Tires | - | - | 53/80 R63 |
| Rims | - | - | 36" x 63" |
ROPS |
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| FOPS Standards | Falling Objects Protective Structure (FOPS) meets ISO 3449:2005 Level II FOPS criteria. | 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. | Rollover Protective Structure (ROPS) for cab offered by Caterpillar meets ISO 3471:2008 ROPS criteria. | - |
Sound |
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| 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 | Hearing protection may be needed when operating with open operator station & cab for extended periods or in noisy environment. | 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. |
| 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). | Exterior sound pressure power level for standard machine measured according to tests specified in ISO 6395:2008 is 116 dB(A). | 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. |
| 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. | Operator Equivalent Sound Pressure Level is 79 dB(A) & 74 dB(A) with EU sound suppression applied when ISO 6396:2008 is used. | - |
Steering |
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| Turning Diameter - Front | 77.1 ft | 57.7 ft | - |
| Steering Standards | ISO 5010:2007 | ISO 5010:2007 | ISO 5010:2019 |
| Steer Angle | 31 ° | 40.5 ° | 39 ° |
| Turning Circle - Clearance Diameter | 85.6 ft | 66.6 ft | - |
| Note | - | Target gross machine operating weight is 71 214 kg (157,000 lb). | Gross Machine Operating Weight is 521 631 kg (1,150,000 lb). |
Sustainability |
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| Recyclability | 98% | - | - |
Dimensions |
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| Height - Top of ROPS | - | 12.7 ft | - |
| Overall Body Length | - | 26.8 ft | - |
| Inside Body Length | - | 18.5 ft | - |
| Overall Length | - | 28.9 ft | - |
| Wheel Base | - | 13 ft | - |
| Rear Axle - Tail | - | 8.5 ft | - |
| Ground Clearance | - | 1.6 ft | - |
| Dump Clearance | - | 1.7 ft | - |
| Loading Height - Empty | - | 10.3 ft | - |
| Inside Body Depth - Maximum | - | 4.6 ft | - |
| Overall Height - Body Raised | - | 27.1 ft | - |
| Operating Width | - | 15.7 ft | - |
| Centerline Front Tire Width | - | 10.2 ft | - |
| Engine Guard Clearance | - | 1.8 ft | - |
| Outside Body Width | - | 12.9 ft | - |
| Inside Body Width | - | 11.9 ft | - |
| Front Canopy Height | - | 13.5 ft | - |
| Rear Axle - Clearance | - | 1.8 ft | - |
| Centerline of Rear Dual Tire Width | - | 8.3 ft | - |
| Overall Tire Width | - | 12.1 ft | - |
AC Drive System |
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| 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 |
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| 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 |
Capacity - HE Body - 100% fill factor |
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| 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. |
Dimensions (Approximate) |
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| 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 |
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| 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. |
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