Off-Highway Trucks

797F Mining Truck

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Specification Summary

Nominal Payload Capacity
400 ton (US)
Engine Model
Cat® C175-20
Gross Power - SAE J1995
4000 HP
Bore
6.9 in
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Engine

Engine Model
Cat® C175-20
Gross Power - SAE J1995
4000 HP
Bore
6.9 in
Stroke
8.7 in
Displacement
6469 in³
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).
Emissions
U.S. EPA Compliant. Where applicable, the Cat C175-20 engine is compliant with U.S. EPA emission standards.
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.

Weights - Approximate

Body Weight Range
41 368-61 235 kg (91,200-135,000 lb)
Chassis Weight Range
210 630-219 146 kg (464,359-483,134 lb)
Target Gross Machine Operating Weight (GMW)
1375000 lb
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.

Operating Specifications

Nominal Payload Capacity
400 ton (US)
Steer Angle
40 °
Top Speed - Loaded
42 mile/h
Heaped SAE (2:1) Capacity
240-267 m3 (314-350 yd3)
Machine Clearance Turning Diameter
138 ft

Final Drives

Differential Ratio
1.276:1
Planetary Ratio
16.67:1
Total Reduction Ratio
21.26:1
Note
Double reduction, planetary with full floating axles.

Transmission

Forward - 1
7 mile/h
Forward - 2
9.5 mile/h
Forward - 3
12.7 mile/h
Forward - 4
17.2 mile/h
Forward - 5
23.1 mile/h
Forward - 6
31.2 mile/h
Forward - 7
42 mile/h
Reverse
7.4 mile/h

Suspension

Rear axle - Oscillation
±4.0 degrees
Effective Cylinder Stroke - Front
12.3 in
Effective Cylinder Stroke - Rear
6.5 in

Body Hoists

High Idle Body Lower Time - Float
19 s
Body Raise Time - High Idle
25 s
Pump Flow - High Idle
317 gal/min
Relief Valve Setting - Raise
3510 psi

Brakes

Outside Diameter
42 in
Standards
ISO 3450:2011
Brake Surface
51243 in²
Number of Discs per Side - Front
10
Number of Discs per Side - Rear
15

Approximate Weights - MSD II

Front Axle - Empty
47.2%
Front Axle - Loaded
33.3%
Rear Axle - Empty
52.8%
Rear Axle - Loaded
66.7%

Weight Distributions - Approximate

Front Axle - Empty
47.2%
Front Axle - Loaded
33.3%
Rear Axle - Empty
52.8%
Rear Axle - Loaded
66.7%

Capacity - MSD II - 100% Fill Factor

Heaped (SAE 2:1)
240-267 m3 (314-350 yd3)
Struck
188-213 m3 (246-290 yd3)
Note
Consult your local Cat dealer for truck body recommendations.

Service Refill Capacities

Cooling System
306 gal (US)
Crankcase
84 gal (US)
Steering Tank
67 gal (US)
Steering System - Including Tank
94 gal (US)
Brake/Hoist Hydraulic Lines
219 gal (US)
Brake/Hoist Tank
203 gal (US)
Front Wheels - Each
16 gal (US)
Torque Converter Sump
80 gal (US)
Brake Hoist System - Includes Tank
441 gal (US)
Differentials
311 gal (US)
Final Drive - Each
49 gal (US)
Fuel Tank
1000 gal (US)
Torque Converter/Transmission System - Including Sump
166 gal (US)

Tires

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.

Dimensions

Front Canopy Height - Empty
25.33 ft
Loaded Ground Clearance
2.58 ft
Height - Top of ROPS - Empty
21.4 ft
Engine Guard Clearance - Loaded
3.33 ft
Inside Body Depth - Maximum
11 ft
Loading Height - Empty
23 ft
Overall Height - Body Raised
51.5 ft
Rear Axle - Clearance - Loaded
3.08 ft
Overall Body Length
48.6 ft
Inside Body Length
32.75 ft
Overall Length
49.5 ft
Wheel Base
23.58 ft
Rear Axle - Tail
12.9 ft
Dump Clearance
6.58 ft
Centerline Front Tire Width
21.41 ft
Overall Canopy Width
29.91 ft
Outside Body Width
32 ft
Inside Body Width
27.91 ft
Centerline of Rear Dual Tire Width
20.41 ft
Overall Tire Width
31.25 ft

ROPS

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.

Sound

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.

Steering

Steering Standards
ISO 5010:2007
Engine Model
Cat® C175-20
Gross Power - SAE J1995
4000 HP
Bore
6.9 in
Stroke
8.7 in
Displacement
6469 in³
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).
Body Weight Range
41 368-61 235 kg (91,200-135,000 lb)
Chassis Weight Range
210 630-219 146 kg (464,359-483,134 lb)
Target Gross Machine Operating Weight (GMW)
1375000 lb
Nominal Payload Capacity
400 ton (US)
Steer Angle
40 °
Top Speed - Loaded
42 mile/h
Heaped SAE (2:1) Capacity
240-267 m3 (314-350 yd3)
Machine Clearance Turning Diameter
138 ft
Differential Ratio
1.276:1
Planetary Ratio
16.67:1
Total Reduction Ratio
21.26:1
Forward - 1
7 mile/h
Forward - 2
9.5 mile/h
Forward - 3
12.7 mile/h
Forward - 4
17.2 mile/h
Forward - 5
23.1 mile/h
Forward - 6
31.2 mile/h
Forward - 7
42 mile/h
Reverse
7.4 mile/h
Rear axle - Oscillation
±4.0 degrees
Effective Cylinder Stroke - Front
12.3 in
Effective Cylinder Stroke - Rear
6.5 in
High Idle Body Lower Time - Float
19 s
Body Raise Time - High Idle
25 s
Pump Flow - High Idle
317 gal/min
Relief Valve Setting - Raise
3510 psi
Outside Diameter
42 in
Standards
ISO 3450:2011
Brake Surface
51243 in²
Number of Discs per Side - Front
10
Number of Discs per Side - Rear
15
Front Axle - Empty
47.2%
Front Axle - Loaded
33.3%
Rear Axle - Empty
52.8%
Rear Axle - Loaded
66.7%
Front Axle - Empty
47.2%
Front Axle - Loaded
33.3%
Rear Axle - Empty
52.8%
Rear Axle - Loaded
66.7%
Heaped (SAE 2:1)
240-267 m3 (314-350 yd3)
Struck
188-213 m3 (246-290 yd3)
Cooling System
306 gal (US)
Crankcase
84 gal (US)
Steering Tank
67 gal (US)
Steering System - Including Tank
94 gal (US)
Brake/Hoist Hydraulic Lines
219 gal (US)
Brake/Hoist Tank
203 gal (US)
Front Wheels - Each
16 gal (US)
Torque Converter Sump
80 gal (US)
Brake Hoist System - Includes Tank
441 gal (US)
Differentials
311 gal (US)
Final Drive - Each
49 gal (US)
Fuel Tank
1000 gal (US)
Torque Converter/Transmission System - Including Sump
166 gal (US)
Tires
59/80R63 – Michelin or Bridgestone
Front Canopy Height - Empty
25.33 ft
Loaded Ground Clearance
2.58 ft
Height - Top of ROPS - Empty
21.4 ft
Engine Guard Clearance - Loaded
3.33 ft
Inside Body Depth - Maximum
11 ft
Loading Height - Empty
23 ft
Overall Height - Body Raised
51.5 ft
Rear Axle - Clearance - Loaded
3.08 ft
Overall Body Length
48.6 ft
Inside Body Length
32.75 ft
Overall Length
49.5 ft
Wheel Base
23.58 ft
Rear Axle - Tail
12.9 ft
Dump Clearance
6.58 ft
Centerline Front Tire Width
21.41 ft
Overall Canopy Width
29.91 ft
Outside Body Width
32 ft
Inside Body Width
27.91 ft
Centerline of Rear Dual Tire Width
20.41 ft
Overall Tire Width
31.25 ft
ROPS Standards
ROPS (Rollover Protective Structure) for cab offered by Caterpillar meets ISO 3471:2008 ROPS criteria.
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.
Steering Standards
ISO 5010:2007
Note
Consult your local Cat dealer for truck body recommendations.
Emissions
U.S. EPA Compliant. Where applicable, the Cat C175-20 engine is compliant with U.S. EPA emission standards.
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.
Note
Double reduction, planetary with full floating axles.
FOPS Standards
FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II FOPS criteria.
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.
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.
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.