797F Mining Truck

Overview

What makes the Cat^® 797F Mining Truck the most productive 363-tonne (400-ton) truck in the market? Is it the best-in-class payload? Superior braking that leads to confident, productive operators? Or a tough, rugged frame that delivers performance and long life no matter the conditions? Today’s 797F delivers all of this—and more. It’s fast, fuel efficient and delivers class-leading productivity, making it the industry benchmark for lower cost per ton in its size class. It hauls more every load, every cycle and every shift. And it delivers a better bottom line to the most important mine in the world: yours.

Key Features

More Comfort. More Performance. More Versatility.

20% Lower Operating Costs

Thanks to 25%+ lower maintenance costs, 35%+ lower cost of oils and lube, and reduced fuel usage

Up To 10% Lower Fuel Costs

One of the most fuel-efficient trucks in the industry — in a variety of applications

Greater Than 90% Physical Availability

High uptime thanks to lower maintenance ratios, longer component life and high reliability

Media Gallery

Specifications

Gross Power - SAE J1995	4000 hp
Engine Model	Cat® C175-20
Net Power - SAE J1349	3795 hp
Rated Speed	1750 r/min
Emissions	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.
Bore	6.9 in
Stroke	8.7 in
Displacement	6469 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.
Note (2)	U.S. EPA Tier 4 Final available for applicable markets.
Note (3)	High Altitude Low Maintenance Ratio Engine Configuration (4x4) option available.

Nominal Rated Payload	400 ton (US)
Rated Gross Machine Weight	1375000 lb
Chassis Weight	474472 lb
Body Weight	94799 lb
Note (1)	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.
Note (4)	Tier 4 Chassis Weight: 486263 lb (220565 kg)

Front Axle - Empty	47.20%
Rear Axle - Empty	52.80%
Front Axle - Loaded	33.30%
Rear Axle - Loaded	66.70%
Note	Weight distributions optimized with Cat body.

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

Forward - 1	6.6 mile/h
Forward - 2	8.9 mile/h
Forward - 3	12 mile/h
Forward - 4	16.2 mile/h
Forward - 5	21.8 mile/h
Forward - 6	29.4 mile/h
Forward - 7	39.5 mile/h
Reverse	7.4 mile/h
Top Speed - Loaded	39.5 mile/h

Tires	59/80 R63
Rims	44 x 63
Note	Quick Change Rims optional.
Note (1)	Caterpillar recommends the customer evaluate all job conditions and consult tire manufacturer for proper tire selection and TKPH (TMPH) capabilities.

Service Brakes	Service Brakes: Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated
Front Wet Disc Brake Surface Area	20500 in²
Rear - Wet Disc Brake Surface Area	30750 in²
Standards	Service and Secondary: ISO 3450:2011
Parking Brake	Four-corner, Multi-disc, Spring Applied, Hydraulically Released
Load Brake	Rear service brakes
Note	Anti-Lock Brake System (ABS) optional with CMD package

Struck	225 yd³ / 172 m³
Heaped (SAE 2:1)*	330 yd³ / 252 m³
Note (1)	Consult your local Cat dealer for body recommendations.

Type	Twin, two-stage hydraulic cylinders with snubbing valve.
Pump Flow - High Idle	317 gpm
Relief Valve Setting - Raise	3510 psi
Body Raise Time - High Idle	25 s
Body Lower Time - Float	18 s
Body Power Down- High Idle	18 s

Type	Self-contained nitrogen/oil cylinders, rear strut pin-to-pin mounting, top & bottom double shear clevis attachments
Effective Cylinder Stroke - Front	3.9 in
Effective Cylinder Stroke - Rear	3.7 in
Rear axle - Oscillation	±3.96 degrees

Fuel Tank	1000 gal (US)
Fuel Tank (Tier 4)	1200 gal (US)
Diesel Exhaust Fluid Tank	100 gal (US)
Cooling System	306 gal (US)
Crankcase	103 gal (US)
Front Wheels - Each	16 gal (US)
Differentials	330 gal (US)
Steering Tank	67 gal (US)
Steering System - Including Tank	95 gal (US)
Brake/Hoist Tank	203 gal (US)
Brake Hoist System - Includes Tank	489 gal (US)
Torque Converter Sump	80 gal (US)
Torque Converter/Transmission System - Including Sump	166 gal (US)
Note (1)	DEF Tank only available for EPA Tier 4 engine option.

Air Conditioning	HFC - 134A refrigerant: 24,300 Btu/h
Heater / Defroster	38900 Btu/h
Note	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
ROPS Standards (2)	ROPS (Rollover Protective Structure) meets ISO 3471:2008 criteria and ISO 13459:2012

Sound Standards (2)	Operator sound pressure level, 78 dB(A), is tested to ISO 6394:2008 and ISO 6396:2008

Steering Angle	40 °
Steering Standards	ISO 5010:2019
Turning Diameter - Front	122.7 ft
Note	Turning Diameter (ISO 7457:2009)

Rear Axle - Clearance - Loaded	3.08 ft
Inside Body Depth - Maximum	11 ft
Overall Height - Body Raised	51.5 ft
Loaded Ground Clearance	2.58 ft
Loading Height - Empty	23 ft
Engine Guard Clearance - Loaded	3.33 ft
Height - Top of ROPS - Empty	21.4 ft
Front Canopy Height - Empty	25.33 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