Overview
Whether you’re hauling copper, coal, gold, iron ore or overburden the 797F provides you with the best in class cost per unit of production. Including the improvements in safety, productivity, serviceability and comfort you will see why the 797F is the industry leader of its class. Combine these features with unmatched dealer support and you will see why more mine sites choose Cat Mining Trucks for their production needs.
Weights - Approximate
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| Nominal Rated Payload |
400ton (US) |
| Rated Gross Machine Weight |
1375000lb |
| Body Weight Range |
41 368-61 235 kg (91,200-135,000 lb) |
| Chassis Weight |
486263lb |
| Note (1) |
Refer to the Cat Mining Truck 10/10/20 Payload Policy for maximum gross machine weight limitations. |
| Note (2) |
Body weight varies depending on body and liner configuration. Weight range for known applications. |
| Note (3) |
Chassis weight with 100 percent fuel, hoist, body mounting group, rims and tires. |
Engine
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| Engine Model |
Cat® C175-20 |
| Gross Power - SAE J1995 |
4000HP |
| Gross Power - SAE J1995:2015 |
4000HP |
| Net Power - SAE J1349:2011 |
3887HP |
| Bore |
6.9in |
| Stroke |
8.7in |
| Displacement |
6469in³ |
| Emissions |
U.S. EPA Compliant. Where applicable, the Cat C175-20 engine is compliant with U.S. EPA emission standards. |
| Note (1) |
Power ratings apply at 1,750 rpm when tested under the specific conditions for the specified standard. |
| Note (2) |
Ratings based on SAE J1995 standard air conditions of 25° C (77° F) and 99 kPa (29.32 Hg) barometer. Power based on fuel having API gravity of 35 at 16° C (69° F) and an LHV of 42 780 kJ/kg (18,390 Btu/lb) when engine is used at 30° C (38° F). |
| Note (3) |
No low altitude arrangement (LAA) engine derating required up to 2134 m (7,000 ft) altitude. |
| Note (4) |
No high altitude arrangement (HAA) engine derating required up to 4877 m (16,000 ft) altitude. |
Brakes
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| Number of Discs per Side - Front |
10 |
| Number of Discs per Side - Rear |
15 |
| Brake Surface |
51243in² |
| Standards |
ISO 3450:2011 |
Steering
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| Steer Angle |
40° |
| Steering Standards |
ISO 5010:2007 |
Suspension
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| Effective Cylinder Stroke - Front |
12.3in |
| Effective Cylinder Stroke - Rear |
6.5in |
| Rear axle - Oscillation |
±4.0 degrees |
Body Hoists
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| Pump Flow - High Idle |
317gal/min |
| Relief Valve Setting - Raise |
3510psi |
| Body Raise Time - High Idle |
25s |
| High Idle Body Lower Time - Float |
19s |
Approximate Weights - HP Body
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| Front Axle - Empty |
47.20% |
| Front Axle - Loaded |
33.30% |
| Rear Axle - Empty |
52.80% |
| Rear Axle - Loaded |
66.70% |
Approximate Weights - MSD II
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| Front Axle - Empty |
47.20% |
| Front Axle - Loaded |
33.30% |
| Rear Axle - Empty |
52.80% |
| Rear Axle - Loaded |
66.70% |
Weight Distributions - Approximate
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| Front Axle - Empty |
47.20% |
| Rear Axle - Empty |
52.80% |
| Front Axle - Loaded |
33.30% |
| Rear Axle - Loaded |
66.70% |
Capacity - 100% Fill Factor
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| Struck |
188-213 m³ (246-290 yd³) |
| Heaped 2:1 Capacity - ISO 6483:1980 |
240-267 m³ (314-350 yd³) |
| Note |
Consult your local Cat dealer for truck body recommendations. |
Service Refill Capacities
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| Fuel Tank |
1000gal (US) |
| DEF Tank |
99gal (US) |
| Cooling System |
306gal (US) |
| Crankcase |
84gal (US) |
| Front Wheels - Each |
16gal (US) |
| Final Drive - Each |
49gal (US) |
| Differentials |
311gal (US) |
| Steering Tank |
67gal (US) |
| Steering System - Including Tank |
94gal (US) |
| Brake/Hoist Hydraulic Lines |
219gal (US) |
| Brake Hoist System - Includes Tank |
441gal (US) |
| Brake/Hoist Tank |
203gal (US) |
| Torque Converter Sump |
80gal (US) |
| Torque Converter/Transmission System - Including Sump |
166gal (US) |
ROPS
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| ROPS Standards |
ROPS (Rollover Protective Structure) for cab offered by Caterpillar meets ISO 3471:2008 ROPS criteria. |
| FOPS Standards |
FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II FOPS criteria. |
Dimensions
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| Inside Body Depth - Maximum |
11ft |
| Loading Height - Empty |
23ft |
| Overall Length |
49.5ft |
| Height - Top of ROPS - Empty |
21.4ft |
| Overall Body Length |
48.6ft |
| Rear Axle - Tail |
12.9ft |
| Dump Clearance |
6.58ft |
| Inside Body Length |
32.75ft |
| Wheel Base |
23.58ft |
| Engine Guard Clearance - Loaded |
3.33ft |
| Inside Body Width |
27.91ft |
| Centerline of Rear Dual Tire Width |
20.41ft |
| Overall Tire Width |
31.25ft |
| Front Canopy Height - Empty |
25.33ft |
| Overall Canopy Width |
29.91ft |
| Loaded Ground Clearance |
2.58ft |
| Outside Body Width |
32ft |
| Rear Axle - Clearance - Loaded |
3.08ft |
| Centerline Front Tire Width |
21.41ft |
| Overall Height - Body Raised |
51.5ft |
Dimensions (All dimensions are approximate. Dimensions are with body 507-1580.)
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| Height to Top of ROPS - Empty |
21.41ft |
| Overall Body Length |
51.13ft |
| Inside Body Length |
32.75ft |
| Overall Length |
51.13ft |
| Wheelbase |
23.61ft |
| Rear Axle to Tail |
12.94ft |
| Loaded Ground Clearance |
2.58ft |
| Dump Clearance |
5.8ft |
| Loading Height - Empty |
22.25ft |
| Inside Body Depth - Maximum |
11ft |
| Overall Height - Body Raised |
50.8ft |
| Centerline Front Tire Width |
21.44ft |
| Engine Guard Clearance - Loaded |
3.36ft |
| Outside Body Width |
34.1ft |
| Overall Canopy Width |
34.1ft |
| Inside Body Width |
29.65ft |
| Front Canopy Height - Empty |
25ft |
| Rear Axle Clearance - Loaded |
3.11ft |
| Overall Tire Width |
31.25ft |
Capacity - MSD II - 100% Fill Factor
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| Struck |
188-213 m³ (246-290 yd³) |
| Heaped (SAE 2:1) |
240-267 m³ (314-350 yd³) |
| Note |
Consult your local Cat dealer for truck body recommendations. |
Transmission
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| Forward - 1 |
7mile/h |
| Forward - 2 |
9.5mile/h |
| Forward - 3 |
12.7mile/h |
| Forward - 4 |
17.2mile/h |
| Forward - 5 |
23.1mile/h |
| Forward - 6 |
31.2mile/h |
| Forward - 7 |
42mile/h |
| Reverse |
7.4mile/h |
| Top Speed - Loaded |
42mile/h |
Final Drives
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| Differential Ratio |
1.276:1 |
| Planetary Ratio |
16.67:1 |
| Total Reduction Ratio |
21.26:1 |
| Note |
Double reduction, planetary with full floating axles. |
Tires
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| Tires |
59/80R63 – Michelin or Bridgestone |
| Note |
Productive capabilities of the 797F are such that, under certain job conditions, TKPH (TMPH) capabilities of standard tires could be exceeded and, therefore, limit production. |
Sound
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| Sound Standards (1) |
The operator sound pressure level measured according to work cycle procedures specified in ISO 6394:2008 and 6396:2008 is 76 dB(A) for cab offered by Caterpillar when properly installed and 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. |
