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 775 Off-Highway Truck |
 772 (07) Off-Highway Truck |
 797F Mining Truck |
 793F Mining Truck |
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Operating Specifications |
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| Nominal Payload Class (100%) | 70.5 ton (US) | 51.6 ton (US) | - | - |
| Top Speed - Loaded | 41.6 mile/h | 49.2 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 | 40.8 yd³ | - | - |
| Maximum Payload Class (110%) | - | 56.7 ton (US) | - | - |
| Target Payload Capacity | - | 51.6 ton (US) | - | - |
| Not to Exceed Payload (120%) | - | 61.9 ton (US) | - | - |
| Body Capacity (SAE 2:1)** | - | 40.8 yd³ | - | - |
Engine |
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| Engine Model | Cat® C27 | Cat® C18 | Cat® C175-20 | Cat® C175-16 |
| Rated Engine Speed | 1800 r/min | 1700 r/min | - | - |
| Gross Power - SAE J1995:2014 | 825 hp | 605 hp | - | - |
| Net Power - SAE J1349:2011 | 768 hp | 550 hp | - | - |
| Net Power - 80/1269/EEC | 775 hp | - | - | - |
| Net Power - ISO 9249 | 775 hp | 550 hp | - | - |
| Bore | 5.4 in | 5.7 in | 6.9 in | 6.9 in |
| Stroke | 6 in | 7.2 in | 8.7 in | 8.7 in |
| Displacement | 1648 in³ | 1105 in³ | 6469 in³ | 5187 in³ |
| Engine Power - ISO 14396 | 812 hp | 598 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). | - | U.S. EPA Tier 4 Final available for applicable markets. | EPA Tier 4 Final / EU Stage V available for applicable markets. |
| 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. | - | Net Power advertised is the power available at the flywheel when the engine is equipped with air intake system, exhaust system, and alternator. | Net Power advertised is the power available at the flywheel when the engine is equipped with air intake system, exhaust system, and alternator. |
| Note (3) | No engine derating required up to 3810 m (12,500 ft) for Tier 2 Equivalent. | - | High Altitude Low Maintenance Ratio Engine Configuration (4x4) option available. | - |
| Emissions | Meets EU Stage V emission standards. | - | U.S. EPA Compliant. Where applicable, the Cat C175-20 engine is compliant with U.S. EPA emission standards.Tier 4 engine option available to meet Tier 4 Final emission standards. | Fuel Optimized |
| Number of Cylinders | - | 6 | - | - |
| Net Torque - SAE J1349 | - | 2221 ft-lb | - | - |
| Gross Power - SAE J1995 | - | - | 4000 hp | 2650 hp |
| Net Power - SAE J1349 | - | - | 3795 hp | 2478 hp |
| Rated Speed | - | - | 1750 r/min | 1750 r/min |
Capacity - Dual Slope - 100% Fill Factor |
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| Struck | 42.7 yd³ | 31.3 yd³ | - | - |
| Heaped (SAE 2:1)* | 55.5 yd³ | - | - | - |
| Note (1) | Contact your local Cat dealer for body recommendation. | - | - | - |
| Note (2) | *ISO 6483:1980 | - | - | - |
| Heaped 2:1 (SAE) | - | 40.8 yd³ | - | - |
Capacity - Flat Floor - 100% Fill Factor |
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| Struck | 42.2 yd³ | 31.3 yd³ | - | - |
| Heaped (SAE 2:1)* | 55.2 yd³ | - | - | - |
| Note (1) | Contact your local Cat dealer for body recommendation. | - | - | - |
| Note (2) | *ISO 6483:1980 | - | - | - |
| Heaped 2:1 (SAE) | - | 40.9 yd³ | - | - |
Weight Distributions - Approximate |
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| Front Axle - Empty | 50 % | 51.4 % | 47.20% | 48 % |
| Front Axle - Loaded | 34 % | 34.2 % | 33.30% | 33 % |
| Rear Axle - Empty | 50 % | 48.6 % | 52.80% | 52 % |
| Rear Axle - Loaded | 66 % | 65.8 % | 66.70% | 67 % |
| Note | - | - | Weight distributions optimized with Cat body. | - |
Transmission |
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| Forward - 1 | 6.6 mile/h | 8 mile/h | 6.6 mile/h | 8 mile/h |
| Forward - 2 | 9.3 mile/h | 10.9 mile/h | 8.9 mile/h | 10.8 mile/h |
| Forward - 3 | 12.6 mile/h | 14.8 mile/h | 12 mile/h | 14.8 mile/h |
| Forward - 4 | 16.8 mile/h | 19.8 mile/h | 16.2 mile/h | 19.9 mile/h |
| Forward - 5 | 22.8 mile/h | 26.9 mile/h | 21.8 mile/h | 27.1 mile/h |
| Forward - 6 | 30.7 mile/h | 36.2 mile/h | 29.4 mile/h | 37.3 mile/h |
| Forward - 7 | 41.6 mile/h | 49.2 mile/h | 39.5 mile/h | - |
| Reverse | 8.7 mile/h | 10.4 mile/h | 7.4 mile/h | 7.3 mile/h |
| Note | Maximum travel speeds with standard 24.00R35 (E4) tires. | - | - | - |
| Top Speed - Loaded | - | - | 39.5 mile/h | 37.3 mile/h |
Final Drives |
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| Differential Ratio | 3.64:1 | 2.74:1 | 1.276:1 | 1.8:1 |
| Planetary Ratio | 4.80:1 | 4.80:1 | 16.67:1 | 16:01 |
| Total Reduction Ratio | 17.49:1 | 13.14:1 | 21.26:1 | 26.8:1 |
| Type | - | - | Double reduction, planetary with full floating axles. | - |
| Note | - | - | Double reduction, planetary with full floating axles. | - |
Brakes |
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| Brake Surface - Front | 257 in² | 216 in² | - | 13921 in² |
| Brake Surface - Rear | 9497 in² | 7794 in² | - | 20847 in² |
| Brake Standards | ISO 3450:2011 | ISO 3450:2011 | - | - |
| Standards | - | - | - | J-ISO 3450 JAN88, ISO 3450:1996 |
Service Refill Capacities |
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| Fuel Tank | 210 gal (US) | 140 gal (US) | 1000 gal (US) | 750 gal (US) |
| Cooling System | 45 gal (US) | 33 gal (US) | 306 gal (US) | 284 gal (US) |
| Differential - Final Drives | 38 gal (US) | 47 gal (US) | - | - |
| Steering Tank | 9.5 gal (US) | 14.5 gal (US) | 67 gal (US) | - |
| Steering System - Including Tank | 14 gal (US) | 23 gal (US) | 95 gal (US) | 77 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) | 103 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) | - | - |
| Fuel Tank (Tier 4) | - | - | 1200 gal (US) | - |
| Diesel Exhaust Fluid Tank | - | - | 100 gal (US) | 62 gal (US) |
| Front Wheels - Each | - | - | 16 gal (US) | - |
| Differentials | - | - | 330 gal (US) | - |
| Brake/Hoist Tank | - | - | 203 gal (US) | - |
| Brake Hoist System - Includes Tank | - | - | 489 gal (US) | 347 gal (US) |
| Torque Converter Sump | - | - | 80 gal (US) | - |
| Torque Converter/Transmission System - Including Sump | - | - | 166 gal (US) | 55 gal (US) |
| Note (1) | - | - | DEF Tank only available for EPA Tier 4 engine option. | DEF Tank only available for EPA Tier 4 engine option. |
| Fuel Tank - Optional | - | - | - | 1300 gal (US) |
| Rear Axle - Housing | - | - | - | 260 gal (US) |
| Torque Converter - Transmission Sump | - | - | - | 27 gal (US) |
Body Hoists |
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| Pump Flow - High Idle | 118 gal/min | 112 gal/min | 317 gal/min | 224 gal/min |
| Relief Valve Setting - Raise | 2502 psi | 2750 psi | 3510 psi | 2955 psi |
| Relief Valve Setting - Lower | 500 psi | 500 psi | - | - |
| Body Raise Time - High Idle | 10 s | 8 s | 25 s | 19 s |
| Body Lower Time - Float | 14 s | 10 s | 18 s | 20 s |
| Body Power Down - High Idle | 14 s | 10 s | - | 17.5 s |
| Type | - | - | Twin, two-stage hydraulic cylinders with snubbing valve. | Twin, two-stage hydraulic cylinders with snubbing valve |
| Body Power Down- High Idle | - | - | 18 s | - |
Weights - Approximate |
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| Maximum Gross Vehicle Weight | 246503 lb | - | - | - |
| Target Gross Machine Operating Weight | - | 181000 lb | - | - |
| Chassis Weight | - | 59223 lb | 474472 lb | 265639 lb |
| Body Weight | - | 17306 lb | 94799 lb | 67682 lb |
| Target Gross Machine Weight | - | 181000 lb | - | - |
| Nominal Rated Payload | - | - | 400 ton (US) | 256 ton (US) |
| Rated Gross Machine Weight | - | - | 1375000 lb | 851000 lb |
| Note (1) | - | - | Consult your tire manufacturer for maximum tire load | 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. | Chassis weight with full fuel and fluids, standard & mandatory attachments, hoist, body mounting group, rims, and tires. |
| Note (4) | - | - | Tier 4 Chassis Weight: 486263 lb (220565 kg) | - |
| Note (3) | - | - | - | Refer to the Cat Mining Truck 10/10/20 Overload Policy for maximum gross machine weight limitations. |
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 | 5.8 in | - | - |
| Rear axle - Oscillation | - | 8.9 ° | ±3.96 degrees | ±4.9 degrees |
| Type | - | - | Self-contained nitrogen/oil cylinders, rear strut pin-to-pin mounting, top & bottom double shear clevis attachments | Self-contained nitrogen/oil cylinders, pin-to-pin mounting, top & bottom double shear clevis attachments |
| Effective Cylinder Stroke - Front | - | - | 3.9 in | 5.1 in |
| Effective Cylinder Stroke - Rear | - | - | 3.7 in | 4.2 in |
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 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. | - | Caterpillar recommends the customer evaluate all job conditions and consult tire manufacturer for proper tire selection and TKPH (TMPH) capabilities. | Extended life wheel stations optional. |
| Standard Tire | 24.00R35 (E4) | 21.00R33 (E4) | - | - |
| Tires | - | - | 59/80 R63 | - |
| Rims | - | - | 44 x 63 | 29" or 32" |
| Note | - | - | Quick Change Rims optional. | Quick Change Rims optional. |
| Standard Tires | - | - | - | 40.00 R57 |
ROPS |
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| FOPS Standards | Falling Objects Protective Structure (FOPS) meets ISO 3449:2005 Level II FOPS criteria. | FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II FOPS criteria. | - | FOPS (Falling Objects Protective Structure) meets ISO 3449:1992 Level II FOPS criteria. |
| ROPS Standards | Rollover Protective Structure (ROPS) for cab offered by Caterpillar meets ISO 3471:2008 ROPS criteria. | ROPS (Rollover Protective Structure) 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. | - | 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 (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 118 dB(A). | Operator sound pressure level, 78 dB(A), is tested to ISO 6394:2008 and ISO 6396:2008 | - |
| 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 (Leq) is 78 dB(A) when ISO 6396:2008 is used to measure the value for an enclosed cab. | - | - |
| Sound Standards | - | - | - | The operator sound pressure level measured according to work cycle procedures specified in ISO 6394 and 6396 is 76 dB(A) for cab offered by Caterpillar, when properly installed and maintained and tested with doors and windows closed. |
Steering |
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| Turning Diameter - Front | 77.1 ft | 57.7 ft | 122.7 ft | 93.2 ft |
| Steering Standards | ISO 5010:2007 | ISO 5010:2007 | ISO 5010:2019 | SAE J15111 OCT90, ISO 5010:1992 |
| Steer Angle | 31 ° | 40.5 ° | - | 36 ° |
| Turning Circle - Clearance Diameter | 85.6 ft | 66.6 ft | - | - |
| Steering Angle | - | - | 40 ° | - |
| Note | - | - | Turning Diameter (ISO 7457:2009) | - |
Sustainability |
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| Recyclability | 98% | - | - | - |
Dimensions |
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| Height - Top of ROPS | - | 12.8 ft | - | - |
| Inside Body Depth - Maximum | - | 5.7 ft | 11 ft | - |
| Overall Body Length | - | 26.8 ft | 48.6 ft | - |
| Inside Body Length | - | 19 ft | 32.75 ft | - |
| Overall Length | - | 28.9 ft | 49.5 ft | - |
| Wheel Base | - | 13 ft | 23.58 ft | - |
| Rear Axle - Tail | - | 9.5 ft | 12.9 ft | - |
| Ground Clearance | - | 1.6 ft | - | - |
| Dump Clearance | - | 1.5 ft | 6.58 ft | - |
| Loading Height - Empty | - | 11.6 ft | 23 ft | - |
| Overall Height - Body Raised | - | 27.1 ft | 51.5 ft | - |
| Operating Width | - | 15.7 ft | - | - |
| Centerline Front Tire Width | - | 10.4 ft | 21.41 ft | - |
| Engine Guard Clearance | - | 2 ft | - | - |
| Outside Body Width | - | 12.9 ft | 32 ft | - |
| Inside Body Width | - | 11.9 ft | 27.91 ft | - |
| Front Canopy Height | - | 13.7 ft | - | - |
| Rear Axle - Clearance | - | 1.9 ft | - | - |
| Centerline of Rear Dual Tire Width | - | 8.7 ft | 20.41 ft | - |
| Overall Tire Width | - | 12.9 ft | 31.25 ft | - |
| Rear Axle - Clearance - Loaded | - | - | 3.08 ft | - |
| Loaded Ground Clearance | - | - | 2.58 ft | - |
| Engine Guard Clearance - Loaded | - | - | 3.33 ft | - |
| Height - Top of ROPS - Empty | - | - | 21.4 ft | - |
| Front Canopy Height - Empty | - | - | 25.33 ft | - |
| Overall Canopy Width | - | - | 29.91 ft | - |
Braking System |
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| Service Brakes | - | - | Service Brakes: Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated | Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated |
| Front Wet Disc Brake Surface Area | - | - | 20500 in² | 13921 in³ |
| Rear - Wet Disc Brake Surface Area | - | - | 30750 in² | 20847 in³ |
| Standards | - | - | Service and Secondary: ISO 3450:2011 | (Service and Secondary): ISO 3450:1996 |
| Parking Brake | - | - | Four-corner, Multi-disc, Spring Applied, Hydraulically Released | - |
| Load Brake | - | - | Rear service brakes | Rear service brakes |
| Note | - | - | Anti-Lock Brake System (ABS) optional with CMD package | Anti-Lock Brake System (ABS) optional with CMD package |
| Parking Brakes | - | - | - | Four-corner, Multi-disc, Spring Applied, Hydraulically Released |
Capacity - HP Body - 100% Fill Factor |
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| Struck | - | - | 225 yd³ / 172 m³ | 112.6-151 m³ (147-197.5 yd³) |
| Heaped (SAE 2:1)* | - | - | 330 yd³ / 252 m³ | 162-191 m³ (212-250 yd³) |
| Note (1) | - | - | Consult your local Cat dealer for body recommendations. | Contact your local Cat dealer for body recommendation. |
| Note (2) | - | - | - | *ISO 6483:1980 |
Cab |
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| Air Conditioning | - | - | HFC - 134A refrigerant: 24,300 Btu/h | Air Conditioning (HFC - 134A refrigerant): 24,300 Btu/hr |
| Heater / Defroster | - | - | 38900 Btu/h | 38900 Btu/h |
| Note | - | - | Ambient capabilities down to -30C (-22F) for heater/defroster and up to 50C (122F) for air conditioning. | Ambient capabilities down to -30C (-22F) for heater/defroster and up to 50C (122F) for air conditioning. |
| FOPS Standards | - | - | FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II criteria and ISO 13459:2012 Level II | FOPS (Falling Objects Protective Structure) meets ISO 3449:1992 Level II criteria. |
| ROPS Standards (2) | - | - | ROPS (Rollover Protective Structure) meets ISO 3471:2008 criteria and ISO 13459:2012 | ROPS (Rollover Protective Structure) meets ISO 3471:1994 criteria. |
| ROPS Standards (1) | - | - | - | The operator sound pressure level, 76 dB(A), complies with ISO 6394 and ISO 6396. |
Capacity - MSD II - 100% Fill Factor |
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| Note | - | - | - | Contact your local Cat dealer for body recommendation. |
| Struck | - | - | - | 112-142 m³ (146-186 yd³) |
| Heaped (SAE 2:1) | - | - | - | 159-190 m3 (209-250 yd3) |
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