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Overview

The 785 Large Mining Truck was Caterpillar’s first entry into the mining industry more than three decades ago and has been a proven performer on sites around the world ever since. And now it’s the first to combine a game-changing level of efficiency with industry-leading physical availability to deliver the next generation of productive hauling. It all starts with the operator, who sits in a state-of-the-art environment designed for efficiency and equipped with features that increase comfort, automate functions, provide real-time information and boost confidence. The 785 also delivers significant improvements in serviceability and reliability, enhanced connectivity and easier technology integration. These improvements — and more — take an already proven truck to the next level of productivity.

Key Features

More Comfort. More Performance. More Versatility.

Up to 5% Fuel Reduction in Cycle Times

With larger tire options, high horsepower option and better shifting & acceleration with APECS transmission

34% More Operator Space

17% wider, 11% more legroom and 19% more shoulder room than D-Series models

Up to 9% Less Fuel Consumption

With Tier 4 engine

Specifications

Gross Power - SAE J19951600 hp
Net Power - SAE J13491509 hp
Engine ModelCat 3512E
Emissions RatingFuel Optimized
Bore6.7 in
Stroke8.5 in
Displacement3573 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 / EU Stage V available for applicable markets.
Note (3)Additional fuel optimized selectable power ratings: 1,450 hp
Nominal Rated Payload (36.00R51 Tires)162 ton (US)
Rated Gross Machine Weight (36.00R51 tires)564000 lb
Nominal Rated Payload (33.00R51 Tires)158 ton (US)
Rated Gross Machine Weight (33.00R51 tires)550000 lb
Chassis Weight (33.00R51 Tires)187736 lb
Chassis Weight (36.00R51 Tires)192959 lb
Body Weight57779 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 (3)Unlined HP Body. Body weight varies depending on body selection and configuration.
Front Axle - Empty48%
Rear Axle - Empty52%
Front Axle - Loaded33%
Rear Axle - Loaded67%
NoteWeight distributions optimized with Cat body.
TypeDouble reduction, planetary with full floating axles.
Differential Ratio2:10:01
Planetary Ratio10.83:1
Total Reduction Ratio22.75:1
Forward - 17.4 mile/h
Forward - 210 mile/h
Forward - 313.7 mile/h
Forward - 418.5 mile/h
Forward - 525 mile/h
Forward - 635.6 mile/h
Reverse7.2 mile/h
Top Speed - Loaded35.6 mile/h
NoteMaximum travel speeds with standard 33.00-R51 tires.
Optional Tires33.00R51
Optional Tire36.00R51
Rims610 mm (24") Rims (optional). 660 mm (26") Rims (optional).
Note (1)Quick Change Rims optional.
Note (2)Caterpillar recommends the customer evaluate all job conditions and consult tire manufacturer for proper tire selection and TKPH (TMPH) capabilities.
Service BrakesFour-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated
Front Wet Disc Brake Surface Area9487 in²
Rear - Wet Disc Brake Surface Area13908 in²
StandardsService and Secondary: ISO 3450:2011
Parking BrakeFour corner, multi disc, spring applied, hydraulically released
TypeTwin, two-stage hydraulic cylinders with snubbing valve.
Pump Flow - High Idle223 gpm
Relief Valve Setting - Raise2500 psi
Body Raise Time - High Idle15 s
Body Lower Time - Float15.6 s
Body Power Down- High Idle15.5 s
Heaped (SAE 2:1)*110 m3 / 144 yd3
Struck84 m3 / 110 yd3
TypeSelf-contained nitrogen/oil cylinders, pin-to-pin mounting, top & bottom double shear clevis attachments
Effective Cylinder Stroke - Front12.6 in
Effective Cylinder Stroke - Rear6.5 in
Rear axle - Oscillation+/- 5.4 degrees
Fuel Tank410 gal (US)
Diesel Exhaust Fluid Tank36 gal (US)
Cooling System126 gal (US)
Crankcase54 gal (US)
Front Wheels - Each7.1 gal (US)
Differential - Final Drives139 gal (US)
Steering Tank29 gal (US)
Steering System - Includes Tank31 gal (US)
Brake/Hoist Tank135 gal (US)
Brake Hoist System - Includes Tank143 gal (US)
Torque Converter - Transmission System - Including Sump46 gal (US)
Air ConditioningHFC - 134A refrigerant: 24,500 Btu/h
Heater / Defroster33300 Btu/h
ROPS Standards (1)ROPS (Rollover Protective Structure) meets ISO 3471:2008 for Operator and ISO 13459:2012 for Trainer.
FOPS StandardsFOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II for Operator and ISO 13459:2012 Level II for Trainer.
Sound StandardsThe operator sound pressure level, 77 dB(A) with direct drive and 75 dB9A) with optional clutch, tested to ISO 6396:2008.
Steer Angle25.1 °
Turning Diameter - ISO 7457:1997 (33.00R51 tires)96.6 ft
Steering StandardsISO 5010:2019
Height - Top of ROPS17.09 ft
Overall Body Length39.32 ft
Inside Body Length27.29 ft
Overall Length39.23 ft
Wheel Base17 ft
Rear Axle - Tail12.56 ft
Ground Clearance3.29 ft
Dump Clearance3.7 ft
Loading Height - Empty17.39 ft
Inside Body Depth - Maximum9.15 ft
Overall Height - Body Raised39.48 ft
Operating Width24.72 ft
Centerline Front Tire Width15.91 ft
Engine Guard Clearance3.41 ft
Overall Canopy Width24.81 ft
Outside Body Width22 ft
Inside Body Width19.72 ft
Front Canopy Height19.8 ft
Rear Axle - Clearance3.25 ft
Centerline of Rear Dual Tire Width14.06 ft
Overall Tire Width20.59 ft

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