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Off-Highway Trucks

797F

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.

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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.

Engine

UNITS:

Metric

Imperial

Gross Power - SAE J1995	2983 kW	4000 hp
Engine Model	Cat® C175-20	Cat® C175-20
Net Power - SAE J1349	2828 kW	3795 hp
Rated Speed	1750 r/min	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.	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	175 mm	6.9 in
Stroke	220 mm	8.7 in
Displacement	106 l	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.	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.	U.S. EPA Tier 4 Final available for applicable markets.
Note (3)	High Altitude Low Maintenance Ratio Engine Configuration (4x4) option available.	High Altitude Low Maintenance Ratio Engine Configuration (4x4) option available.

Weights - Approximate

Nominal Rated Payload	363 t	400 ton (US)
Rated Gross Machine Weight	623690 kg	1375000 lb
Chassis Weight	215217 kg	474472 lb
Body Weight	43000 kg	94799 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 (4)	Tier 4 Chassis Weight: 486263 lb (220565 kg)	Tier 4 Chassis Weight: 486263 lb (220565 kg)

Weight Distributions - Approximate

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

Final Drives

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

Transmission

Forward - 1	10.7 km/h	6.6 mile/h
Forward - 2	14.4 km/h	8.9 mile/h
Forward - 3	19.3 km/h	12 mile/h
Forward - 4	26.1 km/h	16.2 mile/h
Forward - 5	35 km/h	21.8 mile/h
Forward - 6	47.3 km/h	29.4 mile/h
Forward - 7	63.6 km/h	39.5 mile/h
Reverse	11.9 km/h	7.4 mile/h
Top Speed - Loaded	63.6 km/h	39.5 mile/h

Tires

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

Braking System

Service Brakes	Service Brakes: Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated	Service Brakes: Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated
Front Wet Disc Brake Surface Area	132259 cm²	20500 in²
Rear - Wet Disc Brake Surface Area	198388 cm²	30750 in²
Standards	Service and Secondary: 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	Rear service brakes
Note	Anti-Lock Brake System (ABS) optional with CMD package	Anti-Lock Brake System (ABS) optional with CMD package

Capacity - HP Body - 100% Fill Factor

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

Body Hoists

Type	Twin, two-stage hydraulic cylinders with snubbing valve.	Twin, two-stage hydraulic cylinders with snubbing valve.
Pump Flow - High Idle	1140 l/min	317 gal/min
Relief Valve Setting - Raise	24200 kPa	3510 psi
Body Raise Time - High Idle	25 s	25 s
Body Lower Time - Float	18 s	18 s
Body Power Down- High Idle	18 s	18 s

Suspension

Type	Self-contained nitrogen/oil cylinders, rear strut pin-to-pin mounting, top & bottom double shear clevis attachments	Self-contained nitrogen/oil cylinders, rear strut pin-to-pin mounting, top & bottom double shear clevis attachments
Effective Cylinder Stroke - Front	99.1 mm	3.9 in
Effective Cylinder Stroke - Rear	93.2 mm	3.7 in
Rear axle - Oscillation	±3.96 degrees	±3.96 degrees

Service Refill Capacities

Fuel Tank	3785 l	1000 gal (US)
Fuel Tank (Tier 4)	4542 l	1200 gal (US)
Diesel Exhaust Fluid Tank	375 l	100 gal (US)
Cooling System	1160 l	306 gal (US)
Crankcase	390 l	103 gal (US)
Front Wheels - Each	61 l	16 gal (US)
Differentials	1250 l	330 gal (US)
Steering Tank	254 l	67 gal (US)
Steering System - Including Tank	360 l	95 gal (US)
Brake/Hoist Tank	770 l	203 gal (US)
Brake Hoist System - Includes Tank	1850 l	489 gal (US)
Torque Converter Sump	303 l	80 gal (US)
Torque Converter/Transmission System - Including Sump	629 l	166 gal (US)
Note (1)	DEF Tank only available for EPA Tier 4 engine option.	DEF Tank only available for EPA Tier 4 engine option.

Cab

Air Conditioning	HFC - 134A refrigerant: 24,300 Btu/h	HFC - 134A refrigerant: 24,300 Btu/h
Heater / Defroster	38900 Btu/h	38900 Btu/h
Note	Ambient capabilities down to -30C (-22F) for heater/defroster and up to 50C (122F) for air conditioning.	Ambient capabilities down to -30C (-22F) for heater/defroster and up to 50C (122F) for air conditioning.
ROPS Standards (1)	The operator sound pressure level, 76 dB(A), complies with ISO 6394:2008 and ISO 6396:2008.	The operator sound pressure level, 76 dB(A), complies with ISO 6394:2008 and ISO 6396:2008.
ROPS Standards (2)	ROPS (Rollover Protective Structure) meets ISO 3471:2008 criteria and ISO 13459:2012	ROPS (Rollover Protective Structure) meets ISO 3471:2008 criteria and ISO 13459:2012
FOPS Standards	FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II criteria and ISO 13459:2012 Level II	FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II criteria and ISO 13459:2012 Level II

Steering

Steering Angle	40 °	40 °
Turning Diameter - Front	37.4 m	122.7 ft
Steering Standards	ISO 5010:2019	ISO 5010:2019
Note	Turning Diameter (ISO 7457:2009)	Turning Diameter (ISO 7457:2009)

Dimensions

Rear Axle - Clearance - Loaded	947 mm	3.08 ft
Inside Body Depth - Maximum	3363 mm	11 ft
Overall Height - Body Raised	15701 mm	51.5 ft
Loaded Ground Clearance	786 mm	2.58 ft
Loading Height - Empty	6998 mm	23 ft
Engine Guard Clearance - Loaded	1025 mm	3.33 ft
Height - Top of ROPS - Empty	6526 mm	21.4 ft
Front Canopy Height - Empty	7709 mm	25.33 ft
Overall Body Length	14802 mm	48.6 ft
Inside Body Length	9976 mm	32.75 ft
Overall Length	15080 mm	49.5 ft
Wheel Base	7195 mm	23.58 ft
Rear Axle - Tail	3944 mm	12.9 ft
Dump Clearance	2017 mm	6.58 ft
Centerline Front Tire Width	6534 mm	21.41 ft
Overall Canopy Width	9116 mm	29.91 ft
Outside Body Width	9755 mm	32 ft
Inside Body Width	8513 mm	27.91 ft
Centerline of Rear Dual Tire Width	6233 mm	20.41 ft
Overall Tire Width	9529 mm	31.25 ft

Features

SAFETY

Wide walkways, ladders, catwalks and service platforms; slip-resistant surfaces and guard rails; wide secondary egress ladder and a rear service access ladder; and optional powered access ladder.
Integral ROPS structure resiliently mounted to the main frame to reduce vibration and sound.
Lockout/tagout box mounted on the front bumper that includes engine shutdown switch, battery lockout, starter lockout and transmission lockout.
Standard Cat MineStar™ Detect Object Detection system, which combines radar and camera systems to warn operators about hazards within the immediate vicinity.
Optional Driver Safety System alerts the operator if fatigue or distraction are detected.

PRODUCTIVITY

Cost per ton advantage over competitive models in higher altitudes, ranging from 6% to as high as 14%, plus HP Body option reduces weight an additional 2.0-5.0 tonnes (2.2-5.5 tons).
Optimal speed on steep grades, poor underfoot conditions and haul roads with high rolling resistance for faster cycle times when compared to competitive trucks; travels loaded at a top speed of 60 km/h (42 mph).
Unequaled lugging force during acceleration thanks to 23% net torque rise.
Constant power over a wide range of operating speeds thanks to Cat seven-speed planetary power shift transmission.
Low-speed movement control and unsurpassed stall torque delivered by lock-up torque converter.

FUEL EFFICIENCY

Multiple power settings that allow you to operate at full power or in economy mode, so you can decide how much power you need.
Modes that fine-tune hydraulic and engine output to match the job at hand; Eco-mode shown to deliver fuel savings of up to 3.5% per cycle.
Optimized fuel calibrations available for Tier 4, high altitude and lesser regulated applications.
Engine ECM that does not inject fuel into the cylinders during retarding applications, for exceptional fuel economy — zero fuel burn during retarding.
Increased fuel efficiency with Tier 4 configuration.

VERSATILITY

Proven high production in the most challenging conditions—from extreme cold and soft underfoot conditions to high-altitude, deep copper applications.
20-cylinder, quad-turbocharged Cat C175 engine produces 2983 kW (4,000 hp) of power for fast acceleration; 2647-kW (3,550-hp) setting for applications that don’t require the highest power, such as the flat hauls found in many coal and iron ore applications.
Excels at high altitudes, with 4x4 engine configuration that offers payload and greater speeds with no impact on fuel burn.

OPERATOR COMFORT & CONTROL

Two options to equip 797F with the desired features for your operation.
Ergonomic layout, excellent all-around visibility, and controls, levers and switches that are positioned for ease of use.
Includes dozens of features designed to enhance comfort, such as reduced vibration and sound suppression.
Next generation seat includes a height adjuster; adjustable shoulder stock to keep seatbelt from rubbing on the operator’s neck; and seat back, side and lumbar bolsters to increase stability.
Four-corner oil-cooled brakes and Automatic Retarding Control to improve handling and machine control so operators can work quickly and confidently.

SERVICEABILITY

Time-saving features such as long service intervals; grouped ground-level maintenance and checkpoints; oil level sight gauges and front wheel sight glass; and service platforms on the engine and transmission.
Increased life for the majority of filters —in many cases doubling lives to 2,000 hours and extending replacement intervals to four months.
Optional 100% airless electric start option that eliminates air system maintenance from the machine and improves uptime.
Electronic Clutch Pressure Controls (ECPC) diagnostics
Optional fast-fill service center and brake wear indicators.

DURABILITY AND LONG LIFE

Only truck in its size class to achieve high-hour milestones of 130,000 or more hours.
Greater than 5% tire life improvement, significant engine life increase, plus major drive train component life improvement.
Over 80% of frame is cast, not fabricated steel plate.
Box-section design, which incorporates two forgings and 14 castings in high-stress areas with deep penetrating and continuous wrap-around welds to resist damage from twisting loads without adding extra weight.
Frame, powertrain, engine and components that are built to be rebuilt — delivering multiple lives of like-new performance at a fraction-of-new price.

CAT BODIES

Bodies designed to be an integral part of the entire vehicle system, ensuring maximum chassis life.
High Performance (HP) body features lightweight, simplified and durable design that provides complete front machine coverage and extended overhead protection.
Oil sands body specifically designed for use in challenging Canadian Oil Sands applications.
HP-XL body, a version of the standard HP body with an extended length floor, designed to neutralize extreme forward bias loading applications.

SUSTAINABILITY

Designed to use less fuel, which reduces engine emissions, and there is zero fuel burn during retarding; optional Tier 4 Final engine reduces NOx and particulate matter.
Less waste thanks to features like rear axle filtration, extended life filters and longer maintenance intervals.
Cat Common Rail Fuel System, which provides optimal fuel delivery, reducing both fuel consumption and emissions output.
Engine compatible with diesel fuel blended with lower-carbon intensity fuels such as biofuels and renewable fuels.
Cat Rebuild and Cat Reman programs, which preserve raw materials, conserve energy and reduce emissions.

TECHNOLOGY SOLUTIONS

Factory-ready for fully integrated Cat MineStar™ Command for hauling, an autonomous hauling solution proven to increase productivity up to 30%.
Optional MineStar Fleet, a fleet monitoring system, to measure, manage and maximize the overall hauling operation.
Standard MineStar Detect proximity detection system, which uses cameras to give operators a better view of what's happening around their equipment.
Optional in-cab Cat Driver Safety System (DSS) intervenes when operator fatigue or distraction are detected.

Standard Equipment

ELECTRICAL

Alarm, back-up
Brushless, alternator, 150 ampere
Batteries, 12V (2) 93 amp-hour
Converter, 12V electrical
Electrical system, 24V, 10, 20 and 25 amp
Battery charge receptacle
Lighting system: – Back-up and hazard lights – Directional signals (front, rear LED) – Front stair access/Service deck – Stop/tail lights (LED) – Engine compartment – VIMS, blue light (LED) – Headlights with lo-hi beam selector

OPERATOR ENVIRONMENT

Standard cab: – Standard optimized operator seats – Suspension trainer seat – Flip down front visor – Standard side of cab access
Deluxe cab: – Heated and ventilated seats – Suspension trainer seat – Retractable front visor – Rear of cab access and standard side of cab access – Power windows
Deluxe cold weather cab: – Heated and ventilated seats – Suspension trainer seat – Retractable front visor – Rear of cab access and standard side of cab access – Power windows – Heated mirrors
All cab options include the following features: Air conditioner with automatic climate control 12V DC power supply (3) Coat hook Diagnostic connection port Dome courtesy light Entertainment radio ready 5 amp converter, speakers and wiring harness Gauges/Indicators: – Gauge panel: Transmission fluid temperature; Brake oil temperature; Engine coolant temperature; Fuel level; Torque converter oil temperature – Electric engine control fault indicator – Electric hour meter – Speedometer – Tachometer – Transmission gear indicator – VIMS message center with advisor Heater/defroster (11 070 kCal/43,930 Btu) Horn Cat Detect System Storage compartments Hoist, body control (electric) ROPS cab, insulated/sound suppressed Seat, operator, air suspension Seatbelt, operator, three-points, retractable Seat, trainer, air suspension Seatbelt, trainer, two-points, retractable Stairway and walkway access, 600 mm (23.6 in) Steering wheel, multi tilt, padded, telescopic Tinted glass Window, operator, electric powered Windshield wiper, intermittent control and washer Cup holder Mirrors, right and left

POWER TRAIN

C175-20 emits equivalent to Tier 2 emission standards: – Turbocharging (4)/Air-to-Air Aftercooler (ATAAC) – Air cleaner with precleaner (4) – Ground level engine shutdown – Ether starting aid (automatic) – Elevated low idle control – Crankcase protection – Multi-point oil pressure sensing – Automatic starter protection
Braking system: – Park brake integrated with gear selector – Brake release motor (towing) – Oil-cooled, multi-disc (front and rear) – service, retarding, parking, secondary – Automatic Retarder Control, adjustable – Engine overspeed protection – Extended life brake disc material
Transmission: – 7-speed, automatic powershift with electronic controls (ECPC) – Body-up shift inhibitor – Controlled throttle shifting – Directional shift management – Neutral coast inhibitor – Neutral start switch – Downshift/Reverse shift inhibitor – Individual clutch modulation – Body-up reverse neutralizer – Programmable top speed – Lock-up torque converter
Pre-lubrication/engine
Rear axle continuous lubrication/filtration

OTHER STANDARD EQUIPMENT

Traction Control System
Auto lubrication system
Aux “buddy” dumping quick connect
Aux steering quick connect (towing)
Driveline guard
Fast fill fuel system
Fuel filter with water separator
Ground level VIMS data port
Ground level battery lockout
Ground level transmission lockout
Ground level engine start lockout
Ground level engine shut-down
High-speed crankcase oil change
Reservoirs (3 separate): – Brake/Hoist, Steering/Fan, Transmission/Converter
Rock ejectors
Supplemental steering (automatic)
Tie-down eyes
Center hitch and tow points (front), tow pin (rear)
Vandalism protection locks
Vital Information Management System (VIMS): – Includes VIMS Payload Monitor with max payload and speed manager
Hydraulic filters, 1,000 hour
S•O•S℠ sample ports
Service points, ground level
Sight level gauges for hydraulic/engine oil

ANTIFREEZE

Extended Life Coolant to –35° C (–30° F)

Optional Equipment

OPTIONAL EQUIPMENT

Cat Detect System
Cabin air precleaner
Throttle lock
Engine delay shutdown timer
Antifreeze/coolant protects to –50° C (–58° F)
Fuel tank (7570 L/2,000 gal)
SL-V grease injectors
Body heat
Rear axle lubrication cooler
External digital payload display
Oil renewal system
Oil renewal system with 3 day tank
Engine coolant and oil heater for cold weather starts
Road Analysis Control (RAC)
Portable fire extinguisher
Torque converter guard
Brake wear indicator gauge
Rims (wedge)
Rim guard

Downloads

797F Large Product Brochure Download

797F Technical Specifications Download

797F Poster Download