Caterpillar 797F

Caterpillar 797F – Dump truck with a loaded top speed of 67.7 Km/hr

The Caterpillar 797F is a heavy-duty dumping truck designed and manufactured by American company Caterpillar Inc. 797F is particularly developed to serve the high production mining industries and heavy-duty construction applications. The 797F was first unveiled at MINExpo International in September 2008 and the production started in late 2009 in North America. It is an Ultra class, 2-door, Front-engine, rear-wheel drive type of dump truck having a payload capacity of 363 tons.



To maximize the hauling performance and enhanced power management capability the 797F is powered by a Cat C175-20 quad-turbocharged, air-to-air diesel engine.

Engine 797

Design – The C 175-20 is a 20 cylinder, single block, four-stroke engine that uses long, effective power strokes for optimum efficiency. Low RPM rating, high displacement, and conservative power ratings specify more productivity and less maintenance. To regulate the fuel delivery for optimum fuel efficiency, the operating conditions are electrically controlled by the sensing system.

Caterpillar 797F

And the engine is compliant with U.S EPA emission standards. This feature gives the engine the ability to meet emission regulations without sacrificing performance, reliability, and durability. To regulate the fuel delivery for efficiency an electrically controlled sensing system is provided.

Power Transmission

The powershift transmission & mechanical drive power train provides enhanced operating efficiency. A separate oil tank and circuit provide cooler, cleaner oil for optimum performance and longer service life. For smooth shifting, long clutch life & comfortable driving, an Electronic clutch presser control system is provided.

The integrated oil-cooled braking system delivers optimum performance while controlling the extreme road and operating conditions. The integrated braking system combines the service, secondary, parking brakes and retarded functions in the same system for optimum efficiency that does not burn fuel while retarding. The brakes are designed with large discs and plates and completely enclosed and sealed to preempt contamination and reduce maintenance. This unique design absorbs the forces generated by braking by carrying the heat generated & to extend brake life. It is also provided with parking brakes that are spring-applied and hydraulically released that applies the brake to all four wheels for superior parking capability.

The company provides four truck body options to choose for the customers depending on their mine site and overall operational requirements.


A box-section design is used as a frame for 797F which includes two forgings and 14 castings to resist damage. The suspension system is perfectly designed to dissipate haul and loading impacts as the four-bar link suspension transfers and supports loads to the frame more efficiently.

The manufacturers also provide three choices for the internal cabin & the choices include a standard cab, Deluxe cab or Deluxe Cold Wheather cab. And every cab comes with basic features of Air suspension seat, hoist Lever, Secondary Brake Pedal, Steering column, transmission controls, Gauges, storage compartments, Air suspension Trainer seat, Operator window and many more.

An advanced 3G monitoring system gives a set of data in real-time such as operator critical health and payload information to keep the 797F performing its duty at optimum levels. The high tech monitoring system is named as VIMS. The program also allows the service personals to download the data record of machine health and productivity data. The system is capable of showing ten different parameters of the machine at once.

The truck makers also provide customer support service that helps in lowering cost, enhance productivity and manage operations more efficiently.


The price of Caterpillar 797F ranges between $3,400,000 to $5,000,000 depending on the user specifications and requirements.

Specifications of Caterpillar 797F

Gross Power 2983KW
Machine operating Weight 623690 Kg
Chassis Weight range 210630-219146 Kg
Body Weight Range 41368-61235 Kg
Payload Capacity 364 t
Top Speed (Loaded) 67.6 Km/hr
Tires size 59/80R63
Overall Height – Body Raised 15701 mm
Loaded Ground Clearance 786 mm
Loading Height -Empty 6998 mm
Overall Body Length 14802 mm
Inside Body Length 9976 mm
Overall Length 15080 mm
Wheel Base 7195 mm
Dump Clearance 2017 mm
Overall Canopy Width 9116 mm
Outside Body Width 9755 mm
Inside Body Width 8513 mm

Read – Liebherr T 282 C – The monstrous mining dump truck

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