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Mining Trucks(Non Current)

Caterpillar builds Off-Highway Trucks specifically for work in mines, construction and quarries. Our Off-Highway Trucks are pass-matched with Cat Wheel Loaders and Hydraulic Excavators to speed cycle times and maximize productivity.

797 Mining Truck

The Caterpillar 797 is the largest mining truck in the industry, backed by a tradition of superior performance, durability and serviceability.

  • Specification Summary

  • Top Speed - Loaded64 km/h
  • Minimum Payload Capacity326.5 tonnes
  • Maximum Payload Capacity326 tonnes
  • Maximum Capacity Struck (SAE)174.3 m3
  • Raise Time24 Seconds

Product Details

Operating Specifications

Top Speed - Loaded 64 km/h
Minimum Payload Capacity 326.5 tonnes
Maximum Payload Capacity 326 tonnes
Maximum Capacity Struck (SAE) 174.3 m3
Raise Time 24 Seconds
Lower Time 17.3 Seconds


Engine Model Cat 3524B
Gross Power - SAE J1995 2535 kW
Net Power - Cat 2395 kW
Net Power - ISO 9249 2395 kW
Net Power - 80/1269/EEC 2395 kW
Displacement 117 L
Net Power 2395 kW
Net Power - SAE J1349 2371 kW

Weights - Approximate

Gross Machine Operating Weight (GMW) 597273 kg
Chassis Weight 208409 kg
Operating Weight - Empty 262078 kg
Operating Weight - Loaded 557820 kg


Forward 1 10.7 km/h
Forward 2 14.5 km/h
Forward 3 19.5 km/h
Forward 4 26.3 km/h
Forward 5 35.3 km/h
Forward 6 47.8 km/h
Forward 7 64.2 km/h
Reverse 12.2 km/h

Final Drives

Differential Ratio 1.265:1
Planetary Ratio 16.67:1
Total Reduction Ratio 21.09:1


Standards Meet J-ISO 3450 JAN88 and ISO 3450-1996 standards

Body Hoists

Pump Flow - High Idle 1225 L/min
Relief Valve Setting - Raise 23787 kPa
Body Raise Time - High Idle 25 Seconds
Body Lower Time - Float 18.5 Seconds
Body Power Down - High Idle 17.3 Seconds

Approximate Weights - Flat Floor

Chassis 208409 kg
Front Axle - Empty 43.5 %
Front Axle - Loaded 33.3 %
Rear Axle - Empty 56.5 %
Rear Axle - Loaded 66.7 %

Service Refill Capacities

Fuel Tank (standard) 3790 L
Cooling System 1194 L
Crankcase 417 L
Steering Tank 235 L
Steering System (Includes Tank) 432 L
Brake/Hoist Hydraulic Tank 996 L
Torque Converter/Transmission System (Includes Sump) 629 L


Height to Top of ROPS 6521 mm
Overall Body Length 14530 mm
Inside Body Length 9843 mm
Overall Length 14530 mm
Wheelbase 7200 mm
Rear Axle to Tail 4016 mm
Ground Clearance 965 mm
Dump Clearance 1867 mm
Loading Height - Empty 7048 mm
Inside Body Depth - Max 3347 mm
Overall Height - Body Raised 14990 mm
Operating Width 9154 mm
Centerline Front Tire Width 6600 mm
Engine Guard Clearance 1143 mm
Outside Body Width 8524 mm
Inside Body Width 8000 mm
Rear Axle Clearance 787 mm
Centerline Rear Dual Tire Width 6068 mm
Overall Tire Width 9154 mm

Weight Distributions - Approximate

Front Axle - Empty 43.5 %
Rear Axle - Empty 56.5 %


Standard Tires 55/80R63 tires


Sound Standards Meets OSHA and MSHA occupational noise exposure criteria


Steering Standards Meets SAE J1511 OCT90 and ISO 5010-1984 standards


ROPS Standards Meets SAE J1040 APR88, SAE J231 JAN81, ISO 3471-1994 and ISO 3449-1992 LEVEL II


The Cat 3524B diesel engine features electronic unit injection, an ADEM II electronic controller, and a 3500 series fuel system with aftercooling and four single stage turbochargers.

Mechanical Drive

Customers insist on Cat large mining trucks with mechanical drive because of the well-proven durability, efficient power transfer and predictable control.

Power Train

The 797 power train includes a new, more efficient torque converter with lockup clutch. The newly designed, automatic shift, electronically controlled transmission has seven speeds forward and one speed reverse.

Oil-cooled Multiple Disc Brakes

Caterpillar oil-cooled, multiple disc brakes provide exceptional non-fade braking and retarding. This well-proven braking system enhances operator efficiency and confidence.

Operator Station

The 797 operator station offers a superior level of comfort and efficiency. The new cab includes two full-sized air suspension seats, which increase versatility and operator comfort.


The Cat 797 design philosophy is to optimize the truck to meet customer needs. Caterpillar can design a body system to match a specific material resulting in the right payload for maximum productivity.


In the shop or in the field, the Cat 797 is built for quick and easy maintenance for maximum availability. Major components are designed to reduce removal and installation time.

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