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.
Gross Power - SAE J1995
4000 HP
Engine Model
Cat® C175-20
Net Power - SAE J1349
3795 HP
Specification
Value
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.
Specification
Value
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)
Specification
Value
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.
Specification
Value
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.
Specification
Value
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
Specification
Value
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.
Specification
Value
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
Specification
Value
Struck
225 yd³ / 172 m³
Heaped (SAE 2:1)*
330 yd³ / 252 m³
Note (1)
Consult your local Cat dealer for body recommendations.
Specification
Value
Type
Twin, two-stage hydraulic cylinders with snubbing valve.
Pump Flow - High Idle
317 gal/min
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
Specification
Value
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
Specification
Value
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.
Specification
Value
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.
ROPS Standards (1)
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 3471:1994 criteria.
FOPS Standards
FOPS (Falling Objects Protective Structure) meets ISO 3449:1992 Level II criteria.
Specification
Value
Steering Angle
40 °
Turning Diameter - Front
122.7 ft
Steering Standards
ISO 5010:2007
Note
Turning Diameter (ISO 7457:2009)
Specification
Value
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
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
