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785 Mining Truck (LRC, Tier 4 Final / EU Stage V)
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Weights - Approximate |
Nominal Rated Payload |
256 ton (US) |
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Rated Gross Machine Weight |
851000 lb |
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Chassis Weight |
265639 lb |
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Body Weight |
67682 lb |
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57779 lb |
Note (1) |
Consult your tire manufacturer for maximum tire load |
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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. |
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Chassis weight with full fuel and fluids, standard & mandatory attachments, hoist, body mounting group, rims, and tires. |
Note (3) |
Refer to the Cat Mining Truck 10/10/20 Overload Policy for maximum gross machine weight limitations. |
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Body weight varies depending on body selection and configuration. |
Maximum Gross Vehicle Weight |
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246503 lb |
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Nominal Rated Payload (33.00R51 Tires) |
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153 ton (US) |
Rated Gross Machine Weight (33.00R51 tires) |
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550000 lb |
Nominal Rated Payload (36.00R51 Tires) |
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157 ton (US) |
Rated Gross Machine Weight (36.00R51 tires) |
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564000 lb |
Chassis Weight (33.00R51 Tires) |
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186799 lb |
Chassis Weight (36.00R51 Tires) |
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193192 lb |
Engine |
Gross Power - SAE J1995 |
2650 HP |
825 HP |
1600 HP |
Net Power - SAE J1349 |
2478 HP |
768 HP |
1509 HP |
Engine Model |
Cat® C175-16 |
Cat® C27 |
Cat� 3512E |
Rated Speed |
1750 r/min |
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Emissions |
Fuel Optimized |
Meets EU Stage V emission standards. |
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Bore |
6.9 in |
5.4 in |
6.7 in |
Stroke |
8.7 in |
6 in |
8.5 in |
Displacement |
5187 in³ |
1648 in³ |
3573 in³ |
Note (1) |
Net Power advertised is the power available at the flywheel when the engine is equipped with air intake system, exhaust system, and alternator. |
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. |
Note (2) |
EPA Tier 4 Final / EU Stage V available for applicable markets. |
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 / EU Stage V available for applicable markets. |
Rated Engine Speed |
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1800 r/min |
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Net Power - 80/1269/EEC |
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775 HP |
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Net Power - ISO 9249 |
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775 HP |
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Engine Power - ISO 14396 |
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812 HP |
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Net Torque |
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3148 ft-lb |
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Peak Torque - Speed |
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1200 r/min |
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Note (3) |
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No engine derating required up to 3810 m (12,500 ft) for Tier 2 Equivalent. |
Additional fuel optimized selectable power ratings: 1,450 hp |
Emissions Rating |
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Fuel Optimized |
Tires |
Standard Tires |
40.00 R57 |
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Rims |
29" or 32" |
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610 mm (24") Rims (standard). 660 mm (26") Rims (optional). |
Note |
Quick Change Rims optional. |
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Note (1) |
Extended life wheel stations 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. |
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 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. |
Standard Tire |
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24.00R35 (E4) |
33.00R51 |
Optional Tire |
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36.00R51 |
Suspension |
Type |
Self-contained nitrogen/oil cylinders, pin-to-pin mounting, top & bottom double shear clevis attachments |
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Self-contained nitrogen/oil cylinders, pin-to-pin mounting, top & bottom double shear clevis attachments |
Effective Cylinder Stroke - Front |
5.1 in |
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12.6 in |
Effective Cylinder Stroke - Rear |
4.2 in |
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6.5 in |
Rear axle - Oscillation |
±4.9 degrees |
8.1° |
+/- 5 degrees |
Empty Loaded Cylinder Stroke Front |
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9.2 in |
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Empty Loaded Cylinder Stroke Rear |
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5.8 in |
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Braking System |
Service Brakes |
Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated |
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Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated |
Front Wet Disc Brake Surface Area |
13921 in³ |
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9487 in² |
Rear - Wet Disc Brake Surface Area |
20847 in³ |
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13908 in² |
Standards |
(Service and Secondary): ISO 3450:1996 |
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Service and Secondary: ISO 3450:2011 |
Parking Brakes |
Four-corner, Multi-disc, Spring Applied, Hydraulically Released |
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Load Brake |
Rear service brakes |
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Note |
Anti-Lock Brake System (ABS) optional with CMD package |
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Parking Brake |
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Four corner, multi disc, spring applied, hydraulically released |
Body Hoists |
Type |
Twin, two-stage hydraulic cylinders with snubbing valve |
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Twin, two-stage hydraulic cylinders with snubbing valve. |
Pump Flow - High Idle |
224 gal/min |
118 gal/min |
192.7 gal/min |
Relief Valve Setting - Raise |
2955 psi |
2502 psi |
2500 psi |
Body Raise Time - High Idle |
19 s |
10 s |
15.2 s |
Body Lower Time - Float |
20 s |
14 s |
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Body Power Down - High Idle |
17.5 s |
14 s |
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Relief Valve Setting - Lower |
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500 psi |
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Body Lower Time - Float High Idle |
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15.9 s |
Body Lower Time - Float Low Idle |
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16.2 s |
Body Power Down- High Idle |
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15.9 s |
Cab |
Air Conditioning |
Air Conditioning (HFC - 134A refrigerant): 24,300 Btu/hr |
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HFC - 134A refrigerant: 24,500 Btu/h |
Heater / Defroster |
38900 Btu/h |
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33300 Btu/h |
Note |
Ambient capabilities down to -30C (-22F) for heater/defroster and up to 50C (122F) for air conditioning. |
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The operator sound pressure level, 77 dB(A) with direct drive and 75 dB9A) with optional clutch, tested to ISO 6396:2008. |
ROPS Standards (1) |
The operator sound pressure level, 76 dB(A), complies with ISO 6394 and ISO 6396. |
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ROPS (Rollover Protective Structure) meets ISO 3471:2008 for Operator and ISO 13459:2012 for Trainer. |
ROPS Standards (2) |
ROPS (Rollover Protective Structure) meets ISO 3471:1994 criteria. |
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FOPS Standards |
FOPS (Falling Objects Protective Structure) meets ISO 3449:1992 Level II criteria. |
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FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II for Operator and ISO 13459:2012 Level II for Trainer. |
Service Refill Capacities |
Fuel Tank |
750 gal (US) |
210 gal (US) |
410 gal (US) |
Fuel Tank - Optional |
1300 gal (US) |
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Diesel Exhaust Fluid Tank |
62 gal (US) |
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36 gal (US) |
Cooling System |
284 gal (US) |
45 gal (US) |
100 gal (US) |
Crankcase |
82 gal (US) |
24 gal (US) |
54 gal (US) |
Rear Axle - Housing |
260 gal (US) |
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Steering System - Including Tank |
77 gal (US) |
14 gal (US) |
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Brake Hoist System - Includes Tank |
347 gal (US) |
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160 gal (US) |
Torque Converter - Transmission Sump |
27 gal (US) |
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Torque Converter/Transmission System - Including Sump |
55 gal (US) |
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Note (1) |
DEF Tank only available for EPA Tier 4 engine option. |
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Differential - Final Drives |
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38 gal (US) |
139 gal (US) |
Steering Tank |
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9.5 gal (US) |
29 gal (US) |
Brake Hoist System |
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85 gal (US) |
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Torque Converter - Transmission System - LRC |
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16 gal (US) |
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Brake/Hoist Hydraulic Tank |
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46.5 gal (US) |
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Torque Converter - Transmission System - HRC |
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18 gal (US) |
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Front Wheels - Each |
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8 gal (US) |
Steering System - Includes Tank |
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45 gal (US) |
Brake/Hoist Tank |
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135 gal (US) |
Torque Converter - Transmission System - Including Sump |
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46 gal (US) |
Capacity - HP Body - 100% Fill Factor |
Struck |
112.6-151 m³ (147-197.5 yd³) |
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Heaped (SAE 2:1)* |
162-191 m³ (212-250 yd³) |
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Note (1) |
Contact your local Cat dealer for body recommendation. |
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Note (2) |
*ISO 6483:1980 |
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Weight Distributions - Approximate |
Front Axle - Empty |
48 % |
50 % |
48% |
Rear Axle - Empty |
52 % |
50 % |
52% |
Front Axle - Loaded |
33 % |
34 % |
33% |
Rear Axle - Loaded |
67 % |
66 % |
67% |
Note |
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Weight distributions optimized with Cat body. |
Transmission |
Forward - 1 |
8 mile/h |
6.6 mile/h |
7.5 mile/h |
Forward - 2 |
10.8 mile/h |
9.3 mile/h |
10.2 mile/h |
Forward - 3 |
14.8 mile/h |
12.6 mile/h |
13.8 mile/h |
Forward - 4 |
19.9 mile/h |
16.8 mile/h |
18.6 mile/h |
Forward - 5 |
27.1 mile/h |
22.8 mile/h |
25.2 mile/h |
Forward - 6 |
37.3 mile/h |
30.7 mile/h |
34 mile/h |
Reverse |
7.3 mile/h |
8.7 mile/h |
6.8 mile/h |
Top Speed - Loaded |
37.3 mile/h |
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34 mile/h |
Forward - 7 |
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41.6 mile/h |
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Note |
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Maximum travel speeds with standard 24.00R35 (E4) tires. |
Maximum travel speeds with standard 33.00-R51 tires. |
Final Drives |
Differential Ratio |
1.8:1 |
3.64:1 |
2:10:01 |
Planetary Ratio |
16:01 |
4.80:1 |
10.83:1 |
Total Reduction Ratio |
26.8:1 |
17.49:1 |
22.75:1 |
Type |
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Double reduction, planetary with full floating axles. |
Brakes |
Brake Surface - Front |
13921 in² |
257 in² |
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Brake Surface - Rear |
20847 in² |
9497 in² |
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Standards |
J-ISO 3450 JAN88, ISO 3450:1996 |
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Brake Standards |
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ISO 3450:2011 |
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Capacity - MSD II - 100% Fill Factor |
Struck |
112-142 m³ (146-186 yd³) |
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72 m^3 / 94 yd^3 |
Heaped (SAE 2:1) |
159-190 m3 (209-250 yd3) |
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99 m^3 / 129 yd^3 |
Note |
Contact your local Cat dealer for body recommendation. |
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Consult your local Cat dealer for body recommendations. |
ROPS |
ROPS Standards |
ROPS (Rollover Protective Structure) for cab offered by Caterpillar meets ISO 3471:1994 ROPS criteria. |
Rollover Protective Structure (ROPS) for cab offered by Caterpillar meets ISO 3471:2008 ROPS criteria. |
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FOPS Standards |
FOPS (Falling Objects Protective Structure) meets ISO 3449:1992 Level II FOPS criteria. |
Falling Objects Protective Structure (FOPS) meets ISO 3449:2005 Level II FOPS criteria. |
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Sound |
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. |
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Sound Standards (1) |
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 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 |
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Sound Standards (2) |
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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). |
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Sound Standards (3) |
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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. |
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Steering |
Steer Angle |
36 ° |
31 ° |
36 ° |
Turning Diameter - Front |
93.2 ft |
77.1 ft |
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Steering Standards |
SAE J15111 OCT90, ISO 5010:1992 |
ISO 5010:2007 |
ISO 5010:2007 |
Turning Circle - Clearance Diameter |
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85.6 ft |
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Turning Diameter - ISO 7457:1997 (33.00R51 tires) |
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97.75 ft |
Operating Specifications |
Nominal Payload Class (100%) |
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70.5 ton (US) |
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Top Speed - Loaded |
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41.6 mile/h |
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Maximum Working Payload (110%) |
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77.5 ton (US) |
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Target Payload (100%) |
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70.5 ton (US) |
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Maximum Allowable Payload (120%)* |
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84.6 ton (US) |
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Note (2) |
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* Refer to the Caterpillar 10/10/20 Payload Policy for maximum gross machine weight limitations. |
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Note (1) |
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Capacity with Dual Slope body – no liner. |
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Body Capacity - SAE 2:1 |
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55.23 yd³ |
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Capacity - Dual Slope - 100% Fill Factor |
Struck |
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42.7 yd³ |
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Heaped (SAE 2:1)* |
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55.5 yd³ |
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Note (1) |
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Contact your local Cat dealer for body recommendation. |
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Note (2) |
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*ISO 6483:1980 |
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Capacity - Flat Floor - 100% Fill Factor |
Struck |
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42.2 yd³ |
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Heaped (SAE 2:1)* |
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55.2 yd³ |
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Note (1) |
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Contact your local Cat dealer for body recommendation. |
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Note (2) |
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*ISO 6483:1980 |
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Sustainability |
Recyclability |
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98% |
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Dimensions (All dimensions are approximate. MSD II Body, 33R51 tires, unloaded machine.) |
Height - Top of ROPS |
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17.09 ft |
Overall Body Length |
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39.32 ft |
Inside Body Length |
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27.29 ft |
Overall Length |
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39.23 ft |
Wheel Base |
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17 ft |
Rear Axle - Tail |
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12.56 ft |
Ground Clearance |
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3.29 ft |
Dump Clearance |
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3.7 ft |
Loading Height - Empty |
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17.39 ft |
Inside Body Depth - Maximum |
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9.15 ft |
Overall Height - Body Raised |
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39.48 ft |
Operating Width |
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24.72 ft |
Centerline Front Tire Width |
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15.91 ft |
Engine Guard Clearance |
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3.41 ft |
Overall Canopy Width |
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24.81 ft |
Outside Body Width |
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22 ft |
Inside Body Width |
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19.72 ft |
Front Canopy Height |
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19.8 ft |
Rear Axle - Clearance |
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3.25 ft |
Centerline of Rear Dual Tire Width |
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14.06 ft |
Overall Tire Width |
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20.59 ft |