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 794 AC Mining Truck |
 785 Mining Truck (LRC, Tier 4 Final / EU Stage V) |
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Weights - Approximate |
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| Nominal Rated Payload | 327 ton (US) | - | - |
| Rated Gross Machine Weight | 1150000 lb | - | - |
| Chassis Weight | 426237 lb | - | - |
| Body Weight | 64346 lb | 57779 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 (3) | Refer to Cat Mining Truck 10/10/20 Overload Policy (AEXQ0250) for maximum gross machine weight limitations. | Body weight varies depending on body selection and configuration. | - |
| Note (4) | Tier 4 Final / Stage V chassis weight: 426312 lb (193372 kg) | - | - |
| Nominal Rated Payload (33.00R51 Tires) | - | 153 ton (US) | - |
| Rated Gross Machine Weight (33.00R51 tires) | - | 550000 lb | - |
| Nominal Rated Payload (36.00R51 Tires) | - | 157 ton (US) | - |
| Rated Gross Machine Weight (36.00R51 tires) | - | 564000 lb | - |
| Chassis Weight (33.00R51 Tires) | - | 186799 lb | - |
| Chassis Weight (36.00R51 Tires) | - | 193192 lb | - |
Engine |
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| Gross Power - SAE J1995 | 3500 HP | 1600 HP | - |
| Standard Gross Power - SAE J1995 | 3500 HP | - | - |
| Engine Model | Cat® C175-16 | Cat� 3512E | - |
| 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 | 1509 HP | - |
| Emissions Rating | Fuel Optimized | Fuel Optimized | - |
| Bore | 6.9 in | 6.7 in | - |
| Stroke | 8.7 in | 8.5 in | - |
| Displacement | 5187 in³ | 3573 in³ | - |
| Note (1) | Contact factory for high altitude configuration. | Net Power advertised is the power available at the flywheel when the engine is equipped with air intake system, exhaust system, and alternator. | - |
| Note (2) | Tier 4 / EU Stage V option available for regions that require these emissions standards. | U.S. EPA Tier 4 Final / EU Stage V available for applicable markets. | - |
| Note (3) | Tier 4 / EU Stage V engine option Net Power - SAE J1349: 3434 HP (2561 kW) | Additional fuel optimized selectable power ratings: 1,450 hp | - |
Final Drives |
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| Total Reduction Ratio | 35:01:00 | 22.75:1 | - |
| Type | - | Double reduction, planetary with full floating axles. | - |
| Differential Ratio | - | 2:10:01 | - |
| Planetary Ratio | - | 10.83:1 | - |
Tires |
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| Standard Tires | 53/80 R63 | - | - |
| Rims | 36" x 63" | 610 mm (24") Rims (standard). 660 mm (26") Rims (optional). | - |
| Note (1) | Quick Change Rims optional. | Quick Change Rims optional. | - |
| 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 tire manufacturer for proper tire selection and TKPH (TMPH) capabilities. | - |
| Standard Tire | - | 33.00R51 | - |
| Optional Tire | - | 36.00R51 | - |
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 | Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated | - |
| Front Wet Disc Brake Surface Area | 20378 in² | 9487 in² | - |
| Rear - Wet Disc Brake Surface Area | 30750 in² | 13908 in² | - |
| Standards | ISO 3450:2011 | Service and Secondary: ISO 3450:2011 | - |
| Parking Brake | Four-corner, Multi-disc, Spring applied, Hydraulically Released | Four corner, multi disc, spring applied, hydraulically released | - |
| Load Brake | Rear service brakes | - | - |
| Dynamic Retarding Power - Continuous | 5480 HP | - | - |
Weight Distributions - Approximate |
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| Front Axle - Empty | 49 % | 48% | - |
| Rear Axle - Empty | 51 % | 52% | - |
| Front Axle - Loaded | 33 % | 33% | - |
| Rear Axle - Loaded | 67 % | 67% | - |
| Note | - | Weight distributions optimized with Cat body. | - |
Body Hoists |
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| 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 | 2500 psi | - |
| Body Raise Time - High Idle | 24 s | 15.2 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. | - | - |
| Type | - | Twin, two-stage hydraulic cylinders with snubbing valve. | - |
| Pump Flow - High Idle | - | 192.7 gal/min | - |
| Body Lower Time - Float High Idle | - | 15.9 s | - |
| Body Lower Time - Float Low Idle | - | 16.2 s | - |
| Body Power Down- High Idle | - | 15.9 s | - |
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. | - | - |
Service Refill Capacities |
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| Fuel Tank | 1300 gal (US) | 410 gal (US) | - |
| Cooling System | 211 gal (US) | 100 gal (US) | - |
| Crankcase | 82 gal (US) | 54 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) | 36 gal (US) | - |
| Note (1) | DEF Tank only available for EPA Tier 4 / EU Stage V engine option. | - | - |
| Front Wheels - Each | - | 8 gal (US) | - |
| Differential - Final Drives | - | 139 gal (US) | - |
| Steering Tank | - | 29 gal (US) | - |
| Steering System - Includes Tank | - | 45 gal (US) | - |
| Brake/Hoist Tank | - | 135 gal (US) | - |
| Brake Hoist System - Includes Tank | - | 160 gal (US) | - |
| Torque Converter - Transmission System - Including Sump | - | 46 gal (US) | - |
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. | ROPS (Rollover Protective Structure) meets ISO 3471:2008 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. | FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II for Operator and ISO 13459:2012 Level II for Trainer. | - |
| Air Conditioning | - | HFC - 134A refrigerant: 24,500 Btu/h | - |
| Heater / Defroster | - | 33300 Btu/h | - |
| Note | - | The operator sound pressure level, 77 dB(A) with direct drive and 75 dB9A) with optional clutch, tested to ISO 6396:2008. | - |
Sound |
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| 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. | - | - |
| 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. | - | - |
Steering |
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| Steering Standards | ISO 5010:2007 | ISO 5010:2007 | - |
| Note | Gross Machine Operating Weight is 521 631 kg (1,150,000 lb). | - | - |
| Steer Angle | 39 ° | 36 ° | - |
| Turning Diameter - ISO 7457:1997 (33.00R51 tires) | - | 97.75 ft | - |
Capacity - MSD II - 100% Fill Factor |
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| Struck | - | 72 m^3 / 94 yd^3 | - |
| Heaped (SAE 2:1) | - | 99 m^3 / 129 yd^3 | - |
| Note | - | Consult your local Cat dealer for body recommendations. | - |
Suspension |
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| Type | - | Self-contained nitrogen/oil cylinders, pin-to-pin mounting, top & bottom double shear clevis attachments | - |
| Effective Cylinder Stroke - Front | - | 12.6 in | - |
| Effective Cylinder Stroke - Rear | - | 6.5 in | - |
| Rear axle - Oscillation | - | +/- 5 degrees | - |
Dimensions (All dimensions are approximate. MSD II Body, 33R51 tires, unloaded machine.) |
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| Height - Top of ROPS | - | 17.09 ft | - |
| Overall Body Length | - | 39.32 ft | - |
| Inside Body Length | - | 27.29 ft | - |
| Overall Length | - | 39.23 ft | - |
| Wheel Base | - | 17 ft | - |
| Rear Axle - Tail | - | 12.56 ft | - |
| Ground Clearance | - | 3.29 ft | - |
| Dump Clearance | - | 3.7 ft | - |
| Loading Height - Empty | - | 17.39 ft | - |
| Inside Body Depth - Maximum | - | 9.15 ft | - |
| Overall Height - Body Raised | - | 39.48 ft | - |
| Operating Width | - | 24.72 ft | - |
| Centerline Front Tire Width | - | 15.91 ft | - |
| Engine Guard Clearance | - | 3.41 ft | - |
| Overall Canopy Width | - | 24.81 ft | - |
| Outside Body Width | - | 22 ft | - |
| Inside Body Width | - | 19.72 ft | - |
| Front Canopy Height | - | 19.8 ft | - |
| Rear Axle - Clearance | - | 3.25 ft | - |
| Centerline of Rear Dual Tire Width | - | 14.06 ft | - |
| Overall Tire Width | - | 20.59 ft | - |
Transmission |
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| Forward - 1 | - | 7.5 mile/h | - |
| Forward - 2 | - | 10.2 mile/h | - |
| Forward - 3 | - | 13.8 mile/h | - |
| Forward - 4 | - | 18.6 mile/h | - |
| Forward - 5 | - | 25.2 mile/h | - |
| Forward - 6 | - | 34 mile/h | - |
| Reverse | - | 6.8 mile/h | - |
| Top Speed - Loaded | - | 34 mile/h | - |
| Note | - | Maximum travel speeds with standard 33.00-R51 tires. | - |
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