Cat Off-Highway Trucks 797F | Mining

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Specifications

Body Hoists

Type

Twin, two-stage hydraulic cylinders with snubbing valve.
Pump Flow - High Idle

317 gal/min 1140 l/min
Relief Valve Setting - Raise

3510 psi 24200 kPa
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

Braking System

Service Brakes

Service Brakes: Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated
Front Wet Disc Brake Surface Area

20500 in² 132259 cm²
Rear - Wet Disc Brake Surface Area

30750 in² 198388 cm²
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

Cab

Air Conditioning

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.
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

Capacity - HP Body - 100% Fill Factor

Struck

225 yd³ / 172 m³
Heaped (SAE 2:1)*

330 yd³ / 252 m³
Note (1)

Consult your local Cat dealer for body recommendations.

Dimensions

Rear Axle - Clearance - Loaded

3.08 ft 947 mm
Inside Body Depth - Maximum

11 ft 3363 mm
Overall Height - Body Raised

51.5 ft 15701 mm
Loaded Ground Clearance

2.58 ft 786 mm
Loading Height - Empty

23 ft 6998 mm
Engine Guard Clearance - Loaded

3.33 ft 1025 mm
Height - Top of ROPS - Empty

21.4 ft 6526 mm
Front Canopy Height - Empty

25.33 ft 7709 mm
Overall Body Length

48.6 ft 14802 mm
Inside Body Length

32.75 ft 9976 mm
Overall Length

49.5 ft 15080 mm
Wheel Base

23.58 ft 7195 mm
Rear Axle - Tail

12.9 ft 3944 mm
Dump Clearance

6.58 ft 2017 mm
Centerline Front Tire Width

21.41 ft 6534 mm
Overall Canopy Width

29.91 ft 9116 mm
Outside Body Width

32 ft 9755 mm
Inside Body Width

27.91 ft 8513 mm
Centerline of Rear Dual Tire Width

20.41 ft 6233 mm
Overall Tire Width

31.25 ft 9529 mm

Engine

Gross Power - SAE J1995

4000 hp 2983 kW
Engine Model

Cat® C175-20
Net Power - SAE J1349

3795 hp 2828 kW
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.
Bore

6.9 in 175 mm
Stroke

8.7 in 220 mm
Displacement

6469 in³ 106 l
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.

Final Drives

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.

Service Refill Capacities

Fuel Tank

1000 gal (US) 3785 l
Fuel Tank (Tier 4)

1200 gal (US) 4542 l
Diesel Exhaust Fluid Tank

100 gal (US) 375 l
Cooling System

306 gal (US) 1160 l
Crankcase

103 gal (US) 390 l
Front Wheels - Each

16 gal (US) 61 l
Differentials

330 gal (US) 1250 l
Steering Tank

67 gal (US) 254 l
Steering System - Including Tank

95 gal (US) 360 l
Brake/Hoist Tank

203 gal (US) 770 l
Brake Hoist System - Includes Tank

489 gal (US) 1850 l
Torque Converter Sump

80 gal (US) 303 l
Torque Converter/Transmission System - Including Sump

166 gal (US) 629 l
Note (1)

DEF Tank only available for EPA Tier 4 engine option.

Sound

Sound Standards (2)

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

Steering

Steering Angle

40 ° 40 °
Steering Standards

ISO 5010:2019
Turning Diameter - Front

122.7 ft 37.4 m
Note

Turning Diameter (ISO 7457:2009)

Suspension

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 99.1 mm
Effective Cylinder Stroke - Rear

3.7 in 93.2 mm
Rear axle - Oscillation

±3.96 degrees

Tires

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.

Transmission

Forward - 1

6.6 mile/h 10.7 km/h
Forward - 2

8.9 mile/h 14.4 km/h
Forward - 3

12 mile/h 19.3 km/h
Forward - 4

16.2 mile/h 26.1 km/h
Forward - 5

21.8 mile/h 35 km/h
Forward - 6

29.4 mile/h 47.3 km/h
Forward - 7

39.5 mile/h 63.6 km/h
Reverse

7.4 mile/h 11.9 km/h
Top Speed - Loaded

39.5 mile/h 63.6 km/h

Weight Distributions - Approximate

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.

Weights - Approximate

Nominal Rated Payload

400 ton (US) 363 t
Rated Gross Machine Weight

1375000 lb 623690 kg
Chassis Weight

474472 lb 215217 kg
Body Weight

94799 lb 43000 kg
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)

Benefits

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.

Equipment Info

ELECTRICAL

Alarm, back-up

OPERATOR ENVIRONMENT

Standard cab:
– Standard optimized operator seats
– Suspension trainer seat
– Flip down front visor
– Standard side of cab access

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