Mining Trucks 785

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Key Specs

Nominal Rated Payload (33.00R51 Tires): 153 ton (US); 139 t

Rated Gross Machine Weight (33.00R51 tires): 550000 lb; 249476 kg

Gross Power - SAE J1995: 1600 hp; 1193 kW

785
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Overview

A Mining Industry Game Changer

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.

Benefits

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

Features At A Glance

The Advanced Power Electronic Control Strategy (APECS) enables faster cycle times thanks to more continuous torque and rimpull.
Forward momentum and torque are maintained through each shift, with optimum gear selection resulting in faster acceleration.
The 785 delivers a 6% higher TKPH /TMPH (tonne-kilometer-per-hour / ton-mile-per-hour) thanks to larger tire options that allow allow mines to take advantage of higher speeds, particularly in flat, long-haul, high-speed applications.
Productivity-enhancing features such as Hill Start Assist with Anti-Rollback, Enhanced Traction Control, Dynamic Stability Control (DSC), Anti-lock Brake System (ABS), Machine Speed Limiting and Cruise Control improve machine responsiveness and controllability while improving cycle times and reducing operator fatigue.

Wide, slip-resistant surfaces and hand rails, plus an optional powered access ladder, improve access and egress.
Superior control is delivered by a patented braking system that provides immediate, fade-resistant braking and retarding.
Visibility is enhanced by an optional 360-degree Surround View camera, which offers a bird�s-eye view.
The Cat MineStar� Object Detection system combines radar and camera systems to warn operators about light vehicles or stationary hazards within the immediate vicinity of their machines.
The optional Driver Safety System alerts the operator if fatigue or distraction are detected.

The cab provides 34% more operator space than D-Series models. It�s 17% wider and offers 11% more legroom and 19% more shoulder room. Controls, levers and switches are positioned for ease of use.
With 40% less Sound Pressure Level (SPL), automated temperature control and cab filtration, operators enjoy a safer and more comfortable environment.
A walkthrough cab with fully adjustable center console, easy-to-adjust seat and increased leg room makes the cab ideal for operators of all sizes.
The next generation seat is four-point-restraint ready and incorporates features like thigh tilt and extensions, air adjustable side and lumbar bolsters, and heated and cooled cushions.
Operators enjoy a more comfortable ride thanks to smoother transitional shifting and reduced shift jerk levels provided by APECS controls.

Higher resolution displays improve access to information. Machine data, controls and guidance information are consolidated onto two ideally located 10-inch screens.
The optional Auto Hoist feature automatically raises the body and controls engine speed, simplifying operation and minimizing cycle times.
Speed coaching gives operators real-time feedback on how to operate the truck to maximize its productivity.
The payload monitoring system comes with more accurate measurements, providing immediate feedback to the operator.

The new modular HVAC (heating, ventilation and air conditioning) system improves reliability and consolidates components so the entire system can be removed and replaced quickly.
A modular radiator reduces engine removal and installation time and enables rebuilds to be completed off the truck.
New remote flash and remote troubleshooting capabilities provide immediate access to the latest software updates and make it possible to troubleshoot the machine remotely.
Time spent on regular maintenance procedures is reduced thanks to features such as extended-interval filters with ground-level access; grouped service points and optional centralized service center; cleaner hydraulic and electrical routings; SOS and pressure ports for faster, safer oil sampling and troubleshooting; and fluid-level sight glasses.
A 100% airless electric start option eliminates air system maintenance from the machine and improves uptime.

Longer-life components, extended service intervals and easier maintenance deliver consistently high mechanical availability.
A reduction in torque spikes and fewer variations in engine speed, made possible by APECS controls, deliver longer engine and powertrain component life.
The 785 frame uses a box-section design, incorporating two forgings and 21 castings in high-stress areas with deep penetrating and continuous wrap-around welds to resist damage from twisting loads without adding extra weight. The mild steel frame provides flexibility, durability and resistance to impact loads.
Component life is enhanced thanks to the standard rear-axle continuous filtration feature. Cleaner oil helps promote lubrication that leads to longer life
The frame, powertrain, engine and components are built to be rebuilt � delivering multiple lives of like-new performance at a fraction-of-new price.

Caterpillar designed and manufactured bodies are integrated with the chassis as a unit to optimize performance and incorporate optional Tier 4 components, including body exhaust heat.
The lightweight Mine Specific Design (MSD) body is designed with built-in carryback reduction features (front wall curved transition and corner pop-out plates) and is available with optional application-specific body liners.
Intended for tough applications, the heavy-duty Dual Slope body provides excellent load retention, maintains a low center of gravity with optimum load distribution and reduces shock loading.

The 785 is designed to use less fuel, which reduces engine emissions, and there is zero fuel burn during retarding. The Tier 4 Final engine reduces NOx and particulate matter.
The Cat 3512E engine�s 12-cylinder four-stroke design uses long, effective power strokes for more complete fuel combustion and optimum fuel efficiency.
The 785 engine is compatible with diesel fuel blended with lower-carbon intensity fuels such as biofuels and renewable fuels.
Features like oil renewal systems, continuous rear axle filtration, extended life filters and longer maintenance intervals decrease the amount of waste contributed to the environment.
By rebuilding machines and components, the Cat Rebuild and Cat Reman programs preserve raw materials, conserve energy and reduce emissions.

The 785 is available in a cold-weather configuration that makes it ideal for mines operating in frigid environments. It features automatic engine thermal management, a variable fan speed for low temperature operation, and an electric- or air-start option.
The 3512E engine gives you the ability to select the power rating to match your current fleet performance or to achieve faster cycle times.
The 23% net torque rise provides unequaled lugging force during acceleration, on steep grades and in rough underfoot conditions.
Tire options allow you to select the tire that best matches your application, with a larger tire for flat, long, high-speed applications. The frame is designed to maintain the same turning diameter while accommodating larger tires.
The 785 is available in two options to meet emissions standards. The optional Tier 4 Final engine meets the strictest standards while the LRC engine is available in those countries that are less regulated.

MineStar Fleet is a fleet monitoring system that can be used to measure, manage and maximize the overall hauling operation.
Additional MineStar Detect offerings include Awareness, which can provide warnings, and the in-cab Driver Safety System, which intervenes when it detects fatigue or distraction.
Machine health and condition monitoring solutions enable a proactive approach to maintenance.

Next generation connectivity delivers faster data transfers, better access to data, consistent data communication, more actionable data, improved data analytics and new diagnostic capabilities.
The backbone of the next generation machine is 100 Mbps two-wire ethernet communication across the machine controllers, sensors that are optimized for data analytics, and robust controls.
Advanced connectivity on the 785 truck is enabled by standard cellular 4G/LTE, optional dual mode 4G/LTE and Satellite Product Link�, or locally installed Wi-Fi.
Every machine from the factory comes with Product Link Elite as a standard offering. This solution enables the truck to collect and transmit information into locally-hosted or cloud-hosted applications.

Specifications Standard Equipment Optional Equipment

Product Specifications for 785

Engine

Gross Power - SAE J1995	1600 hp 1193 kW
Net Power - SAE J1349	1509 hp 1125 kW
Engine Model	Cat 3512E Cat 3512E
Emissions Rating	Fuel Optimized Fuel Optimized
Bore	6.7 in 170 mm
Stroke	8.5 in 215 mm
Displacement	3573 in³ 58.56 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. 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. U.S. EPA Tier 4 Final / EU Stage V available for applicable markets.
Note (3)	Additional fuel optimized selectable power ratings: 1,450 hp Additional fuel optimized selectable power ratings: 1,450 hp

Weights - Approximate

Nominal Rated Payload (33.00R51 Tires)	153 ton (US) 139 t
Rated Gross Machine Weight (33.00R51 tires)	550000 lb 249476 kg
Nominal Rated Payload (36.00R51 Tires)	157 ton (US) 142 t
Rated Gross Machine Weight (36.00R51 tires)	564000 lb 255826 kg
Chassis Weight (33.00R51 Tires)	186799 lb 84731 kg
Chassis Weight (36.00R51 Tires)	193192 lb 87631 kg
Body Weight	57779 lb 26208 kg
Note (1)	Consult your tire manufacturer for maximum tire load 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. Chassis weight with full fuel and fluids, standard & mandatory attachments, hoist, body mounting group, rims, and tires.
Note (3)	Body weight varies depending on body selection and configuration. Body weight varies depending on body selection and configuration.

Weight Distributions - Approximate

Front Axle - Empty	48% 48%
Rear Axle - Empty	52% 52%
Front Axle - Loaded	33% 33%
Rear Axle - Loaded	67% 67%
Note	Weight distributions optimized with Cat body. Weight distributions optimized with Cat body.

Final Drives

Type	Double reduction, planetary with full floating axles. Double reduction, planetary with full floating axles.
Differential Ratio	2:10:01 2:10:01
Planetary Ratio	10.83:1 10.83:1
Total Reduction Ratio	22.75:1 22.75:1

Transmission

Forward - 1	7.4 mile/h 12 km/h
Forward - 2	10 mile/h 16.2 km/h
Forward - 3	13.7 mile/h 22.1 km/h
Forward - 4	18.5 mile/h 29.8 km/h
Forward - 5	25 mile/h 40.2 km/h
Forward - 6	35.6 mile/h 57.2 km/h
Reverse	7.2 mile/h 11.6 km/h
Top Speed - Loaded	35.6 mile/h 57.2 km/h
Note	Maximum travel speeds with standard 33.00-R51 tires. Maximum travel speeds with standard 33.00-R51 tires.

Tires

Standard Tire	33.00R51 33.00R51
Optional Tire	36.00R51 36.00R51
Rims	610 mm (24") Rims (standard). 660 mm (26") Rims (optional). 610 mm (24") Rims (standard). 660 mm (26") Rims (optional).
Note (1)	Quick Change Rims optional. 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. Caterpillar recommends the customer evaluate all job conditions and consult tire manufacturer for proper tire selection and TKPH (TMPH) capabilities.

Braking System

Service Brakes	Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated
Front Wet Disc Brake Surface Area	9487 in² 61270 cm²
Rear - Wet Disc Brake Surface Area	13908 in² 89728 cm²
Standards	Service and Secondary: ISO 3450:2011 Service and Secondary: ISO 3450:2011
Parking Brake	Four corner, multi disc, spring applied, hydraulically released Four corner, multi disc, spring applied, hydraulically released

Capacity - MSD II - 100% Fill Factor

Struck	72 m^3 / 94 yd^3 72 m^3 / 94 yd^3
Heaped (SAE 2:1)	99 m^3 / 129 yd^3 99 m^3 / 129 yd^3
Note	Consult your local Cat dealer for body recommendations. Consult your local Cat dealer for body recommendations.

Body Hoists

Type	Twin, two-stage hydraulic cylinders with snubbing valve. Twin, two-stage hydraulic cylinders with snubbing valve.
Pump Flow - High Idle	223 gal/min 847 l/min
Relief Valve Setting - Raise	2500 psi 17225 kPa
Body Raise Time - High Idle	15 s 15 s
Body Lower Time - Float	15.6 s 15.6 s
Body Power Down- High Idle	15.5 s 15.5 s

Suspension

Type	Self-contained nitrogen/oil cylinders, pin-to-pin mounting, top & bottom double shear clevis attachments Self-contained nitrogen/oil cylinders, pin-to-pin mounting, top & bottom double shear clevis attachments
Effective Cylinder Stroke - Front	12.6 in 320 mm
Effective Cylinder Stroke - Rear	6.5 in 165 mm
Rear axle - Oscillation	+/- 5.4 degrees +/- 5.4 degrees

Service Refill Capacities

Fuel Tank	410 gal (US) 1552 l
Diesel Exhaust Fluid Tank	36 gal (US) 136 l
Cooling System	126 gal (US) 476 l
Crankcase	54 gal (US) 204 l
Front Wheels - Each	7.1 gal (US) 27 l
Differential - Final Drives	139 gal (US) 527 l
Steering Tank	29 gal (US) 110 l
Steering System - Includes Tank	31 gal (US) 117 l
Brake/Hoist Tank	135 gal (US) 511 l
Brake Hoist System - Includes Tank	143 gal (US) 541 l
Torque Converter - Transmission System - Including Sump	46 gal (US) 175 l

Cab

Air Conditioning	HFC - 134A refrigerant: 24,500 Btu/h HFC - 134A refrigerant: 24,500 Btu/h
Heater / Defroster	33300 Btu/h 33300 Btu/h
Note	The operator sound pressure level, 77 dB(A) with direct drive and 75 dB9A) with optional clutch, tested to ISO 6396:2008. The operator sound pressure level, 77 dB(A) with direct drive and 75 dB9A) with optional clutch, tested to ISO 6396:2008.
ROPS Standards (1)	ROPS (Rollover Protective Structure) meets ISO 3471:2008 for Operator and ISO 13459:2012 for Trainer. ROPS (Rollover Protective Structure) meets ISO 3471:2008 for Operator and ISO 13459:2012 for Trainer.
FOPS Standards	FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II for Operator and ISO 13459:2012 Level II for Trainer. FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II for Operator and ISO 13459:2012 Level II for Trainer.

Steering

Steer Angle	25.1 ° 25.1 °
Turning Diameter - ISO 7457:1997 (33.00R51 tires)	96.6 ft 29.4 m
Steering Standards	ISO 5010:2019 ISO 5010:2019

Dimensions (All dimensions are approximate. MSD II Body, 33R51 tires, unloaded machine.)

Height - Top of ROPS	17.09 ft 5208 mm
Overall Body Length	39.32 ft 11985 mm
Inside Body Length	27.29 ft 8318 mm
Overall Length	39.23 ft 11957 mm
Wheel Base	17 ft 5180 mm
Rear Axle - Tail	12.56 ft 3829 mm
Ground Clearance	3.29 ft 1004 mm
Dump Clearance	3.7 ft 1128 mm
Loading Height - Empty	17.39 ft 5299 mm
Inside Body Depth - Maximum	9.15 ft 2790 mm
Overall Height - Body Raised	39.48 ft 12032 mm
Operating Width	24.72 ft 7535 mm
Centerline Front Tire Width	15.91 ft 4850 mm
Engine Guard Clearance	3.41 ft 1038 mm
Overall Canopy Width	24.81 ft 7562 mm
Outside Body Width	22 ft 6714 mm
Inside Body Width	19.72 ft 6010 mm
Front Canopy Height	19.8 ft 6035 mm
Rear Axle - Clearance	3.25 ft 990 mm
Centerline of Rear Dual Tire Width	14.06 ft 4285 mm
Overall Tire Width	20.59 ft 6277 mm

785 Standard Equipment

ELECTRICAL

24V electrical system, low maintenance batteries (2) 93 amp-hour

Alarm, backup

Brushless alternator, 225 amp

Ground accessible power control box: Ethernet VIMS� port and VIMS lamp; Engine starter; transmission and battery lockouts

Jump start/battery charge receptacle

LED payload indicator lamps

LED Lighting system: Back-up and hazard lights, Curb lights, (one) RH side, (one) LH side, Turn signals (front and rear), Engine compartment lights, Headlights with low-high beam selector, Ladder light and service deck lights, Stop/tail lights

FLUIDS

Extended Life Coolant to � 35� C (� 30� F)

OPERATOR ENVIRONMENT

5V USB charging port

12V auxiliary power connection

Cup holders

Diagnostic connection port COM3 and Ethernet

Delayed Engine Shutdown

Dome courtesy light and map lights

Entertainment radio ready: Speakers, Optional Antenna (AM/FM/WB/satellite radio), Radio mounting provisions and 12V power supply

Fire suppression ready

Floor mat, multi-piece & replaceable

Gauges and indicators panel: Critical oil and coolant temperatures; Fuel and DEF level (if applicable); Engine system, brake and transmission fault indicators; Operator selectable max. machine speed by rotary dial; Speedometer, Tachometer

Heated mirrors, right and left

Hoist, body control

Interactive touchscreen vehicle information display: Day/night mode; Action alarm; Quad gauge display

Operator and trainer air suspension seats

Operator Door Power Window

Provision for customer accessory mounting

Push button secure start

Retractable front visor

ROPS cab, insulated/sound suppressed

Stairway and walkway access, 600 mm (24 in)

Steering wheel, tiltable, telescopic

Self-filling to windshield washer fluid from AC condensate

Storage locations for operator gear

Three point seat belt for operator seat

Windshield wiper, intermittent control / washer

Unitized hydraulic powered HVAC with automatic temperature control

Ventilated operator seat

POWER TRAIN

33R51 power train with standard rims

Cat 3512E engine: Automatic engine and DEF thermal management (if applicable); Automatic low voltage idle management; Air cleaner with precleaner (two); Turbocharging (four) with air-to-air aftercooler; Mechanical Electronic Unit Injector (MEUI�-A) fuel system; Automatic starter protection; Automatic ether starting aid

Hydraulic braking system: Automatic Resistive Braking control (ARC), adjustable and automatic; Brake release motor (towing); Engine over speed protection; Extended life brake disc material; Hill start assist/Anti roll back strategy; Oil-cooled, multi-disc (front and rear) � Service, Resistive braking, parking, secondary; Park brake integrated with gear selector

Transmission :Six-speed, automatic power shift with Electronic Clutch Pressure Control (ECPC); Advanced Productivity Electronic Control Strategy (APECS); Body-up reverse neutralizer; Body-up shift inhibitor; Downshift/reverse shift inhibitor; Directional shift management; Enhanced Traction Control System; Programmable top gear; Oil level sensor; Neutral coast inhibitor; Neutral start switch; Lock-up torque converter; Rear axle continuous lubrication/filtration

OTHER EQUIPMENT

Auxiliary "buddy" dumping quick connect

Auxiliary connection 'user defined shutdown'

Auxiliary steering quick connect (towing)

eOMM

Fast fill fuel and DEF remote fill system

Guards for rotating components

Hill Start Assist

Hydraulic Filters, 1,000 hours

Remote flash software and troubleshooting

Secondary steering (automatic)

Tie off points

Tow hooks (front) and tow pin (rear)

Sight glasses for hydraulic oils

S�O�S? ports

Vital Information Management System (VIMS)

Cat Technology Products

Cyber security

Integrated object detection system with touchscreen display

Tire Payload Monitoring System 2 (TPMS 2)

Product Link� Elite

785 Optional Equipment

ELECTRICAL

Auxiliary rear work lights, (one) LH side

Digital Payload Display

LED Lighting system: Additional lighting package, Auxiliary VIMS, Body rear, Seat & park brake

Workshop horn

Truck bodies

MSD II body: 100 m3 (131 yd3)

Dual slope body: 78 m3 (102 yd3)

Body specific side wall and tail extensions

Customizable body liner packages

Body heat exhaust

Rock ejectors

Rear body lighting group: Directional signals, Stop/tail lights

FLUIDS

Extended Life Coolant to � 50� C (� 58� F)

OPERATOR ENVIRONMENT

Emergency stop

Deluxe Cab: Advanced cabin filtration system; Catwalk and handrails for rear cab access; Heated, cooled and ventilated front seat; Power right side window; Suspended companion seat; Storage tray

POWER TRAIN

No air � electric starter with 93-amp hour batteries (four), electric horn and automatic lubrication system

Hydraulic braking system: Advanced ground control with Anti-lock Braking System (ABS) and Dynamic Stability Control (DSC)

Variable speed fan drive

Transmission: Engine pre-lubrication system; Rear axle continuous lubrication/filtration with cooler

Turbine air starter with air tank, air horn and automatic lubrication system

OTHER EQUIPMENT

2560 L (676 gal) fuel tank (non-Tier 4)

Body heat exhaust

Bumper towing � center pin kit

Cold weather start (block heater)

Communication Ar � Minestar� radio

Fire extinguisher, portable

Five piece crankcase guards

Fuel heater, fuel water separator

Fuel tank mud guard

Gauge, brake wear indicator

Ground accessible fluid service center, hydraulic and coolant

Hub odometer, kilometers

Powered access stairway

Rim Diffuser

Wheel chocks

Wireless Electronic Technician (ET)

Working at heights protection

Cat Technology Products

Cruise control

360 degree surround view camera

4G cellular/satellite dual mode

Connectivity bundle (includes: wireless operator ID, bluetooth key FOB to start)

Driver Safety System (DSS) 4.0 Ready

Minestar GPS

Minestar communication group (enables: Minestar Fleet, Aux, and Truck Spotting)

Oil Renewal System (ORS) (non-Tier 4)

Road Analysis Control (RAC)

Minestar Command Autonomous-ready

Product Specifications for 785

Download Print

Engine

Gross Power - SAE J1995	1600 hp 1193 kW
Net Power - SAE J1349	1509 hp 1125 kW
Engine Model	Cat 3512E Cat 3512E
Emissions Rating	Fuel Optimized Fuel Optimized
Bore	6.7 in 170 mm
Stroke	8.5 in 215 mm
Displacement	3573 in³ 58.56 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. 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. U.S. EPA Tier 4 Final / EU Stage V available for applicable markets.
Note (3)	Additional fuel optimized selectable power ratings: 1,450 hp Additional fuel optimized selectable power ratings: 1,450 hp

Weights - Approximate

Nominal Rated Payload (33.00R51 Tires)	153 ton (US) 139 t
Rated Gross Machine Weight (33.00R51 tires)	550000 lb 249476 kg
Nominal Rated Payload (36.00R51 Tires)	157 ton (US) 142 t
Rated Gross Machine Weight (36.00R51 tires)	564000 lb 255826 kg
Chassis Weight (33.00R51 Tires)	186799 lb 84731 kg
Chassis Weight (36.00R51 Tires)	193192 lb 87631 kg
Body Weight	57779 lb 26208 kg
Note (1)	Consult your tire manufacturer for maximum tire load 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. Chassis weight with full fuel and fluids, standard & mandatory attachments, hoist, body mounting group, rims, and tires.
Note (3)	Body weight varies depending on body selection and configuration. Body weight varies depending on body selection and configuration.

Weight Distributions - Approximate

Front Axle - Empty	48% 48%
Rear Axle - Empty	52% 52%
Front Axle - Loaded	33% 33%
Rear Axle - Loaded	67% 67%
Note	Weight distributions optimized with Cat body. Weight distributions optimized with Cat body.

Final Drives

Type	Double reduction, planetary with full floating axles. Double reduction, planetary with full floating axles.
Differential Ratio	2:10:01 2:10:01
Planetary Ratio	10.83:1 10.83:1
Total Reduction Ratio	22.75:1 22.75:1

Transmission

Forward - 1	7.4 mile/h 12 km/h
Forward - 2	10 mile/h 16.2 km/h
Forward - 3	13.7 mile/h 22.1 km/h
Forward - 4	18.5 mile/h 29.8 km/h
Forward - 5	25 mile/h 40.2 km/h
Forward - 6	35.6 mile/h 57.2 km/h
Reverse	7.2 mile/h 11.6 km/h
Top Speed - Loaded	35.6 mile/h 57.2 km/h
Note	Maximum travel speeds with standard 33.00-R51 tires. Maximum travel speeds with standard 33.00-R51 tires.

Tires

Standard Tire	33.00R51 33.00R51
Optional Tire	36.00R51 36.00R51
Rims	610 mm (24") Rims (standard). 660 mm (26") Rims (optional). 610 mm (24") Rims (standard). 660 mm (26") Rims (optional).
Note (1)	Quick Change Rims optional. 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. Caterpillar recommends the customer evaluate all job conditions and consult tire manufacturer for proper tire selection and TKPH (TMPH) capabilities.

Braking System

Service Brakes	Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated
Front Wet Disc Brake Surface Area	9487 in² 61270 cm²
Rear - Wet Disc Brake Surface Area	13908 in² 89728 cm²
Standards	Service and Secondary: ISO 3450:2011 Service and Secondary: ISO 3450:2011
Parking Brake	Four corner, multi disc, spring applied, hydraulically released Four corner, multi disc, spring applied, hydraulically released

Capacity - MSD II - 100% Fill Factor

Struck	72 m^3 / 94 yd^3 72 m^3 / 94 yd^3
Heaped (SAE 2:1)	99 m^3 / 129 yd^3 99 m^3 / 129 yd^3
Note	Consult your local Cat dealer for body recommendations. Consult your local Cat dealer for body recommendations.

Body Hoists

Type	Twin, two-stage hydraulic cylinders with snubbing valve. Twin, two-stage hydraulic cylinders with snubbing valve.
Pump Flow - High Idle	223 gal/min 847 l/min
Relief Valve Setting - Raise	2500 psi 17225 kPa
Body Raise Time - High Idle	15 s 15 s
Body Lower Time - Float	15.6 s 15.6 s
Body Power Down- High Idle	15.5 s 15.5 s

Suspension

Type	Self-contained nitrogen/oil cylinders, pin-to-pin mounting, top & bottom double shear clevis attachments Self-contained nitrogen/oil cylinders, pin-to-pin mounting, top & bottom double shear clevis attachments
Effective Cylinder Stroke - Front	12.6 in 320 mm
Effective Cylinder Stroke - Rear	6.5 in 165 mm
Rear axle - Oscillation	+/- 5.4 degrees +/- 5.4 degrees

Service Refill Capacities

Fuel Tank	410 gal (US) 1552 l
Diesel Exhaust Fluid Tank	36 gal (US) 136 l
Cooling System	126 gal (US) 476 l
Crankcase	54 gal (US) 204 l
Front Wheels - Each	7.1 gal (US) 27 l
Differential - Final Drives	139 gal (US) 527 l
Steering Tank	29 gal (US) 110 l
Steering System - Includes Tank	31 gal (US) 117 l
Brake/Hoist Tank	135 gal (US) 511 l
Brake Hoist System - Includes Tank	143 gal (US) 541 l
Torque Converter - Transmission System - Including Sump	46 gal (US) 175 l

Cab

Air Conditioning	HFC - 134A refrigerant: 24,500 Btu/h HFC - 134A refrigerant: 24,500 Btu/h
Heater / Defroster	33300 Btu/h 33300 Btu/h
Note	The operator sound pressure level, 77 dB(A) with direct drive and 75 dB9A) with optional clutch, tested to ISO 6396:2008. The operator sound pressure level, 77 dB(A) with direct drive and 75 dB9A) with optional clutch, tested to ISO 6396:2008.
ROPS Standards (1)	ROPS (Rollover Protective Structure) meets ISO 3471:2008 for Operator and ISO 13459:2012 for Trainer. ROPS (Rollover Protective Structure) meets ISO 3471:2008 for Operator and ISO 13459:2012 for Trainer.
FOPS Standards	FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II for Operator and ISO 13459:2012 Level II for Trainer. FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II for Operator and ISO 13459:2012 Level II for Trainer.

Steering

Steer Angle	25.1 ° 25.1 °
Turning Diameter - ISO 7457:1997 (33.00R51 tires)	96.6 ft 29.4 m
Steering Standards	ISO 5010:2019 ISO 5010:2019

Dimensions (All dimensions are approximate. MSD II Body, 33R51 tires, unloaded machine.)

Height - Top of ROPS	17.09 ft 5208 mm
Overall Body Length	39.32 ft 11985 mm
Inside Body Length	27.29 ft 8318 mm
Overall Length	39.23 ft 11957 mm
Wheel Base	17 ft 5180 mm
Rear Axle - Tail	12.56 ft 3829 mm
Ground Clearance	3.29 ft 1004 mm
Dump Clearance	3.7 ft 1128 mm
Loading Height - Empty	17.39 ft 5299 mm
Inside Body Depth - Maximum	9.15 ft 2790 mm
Overall Height - Body Raised	39.48 ft 12032 mm
Operating Width	24.72 ft 7535 mm
Centerline Front Tire Width	15.91 ft 4850 mm
Engine Guard Clearance	3.41 ft 1038 mm
Overall Canopy Width	24.81 ft 7562 mm
Outside Body Width	22 ft 6714 mm
Inside Body Width	19.72 ft 6010 mm
Front Canopy Height	19.8 ft 6035 mm
Rear Axle - Clearance	3.25 ft 990 mm
Centerline of Rear Dual Tire Width	14.06 ft 4285 mm
Overall Tire Width	20.59 ft 6277 mm

785 Standard Equipment

ELECTRICAL

24V electrical system, low maintenance batteries (2) 93 amp-hour

Alarm, backup

Brushless alternator, 225 amp

Ground accessible power control box: Ethernet VIMS� port and VIMS lamp; Engine starter; transmission and battery lockouts

Jump start/battery charge receptacle

LED payload indicator lamps

LED Lighting system: Back-up and hazard lights, Curb lights, (one) RH side, (one) LH side, Turn signals (front and rear), Engine compartment lights, Headlights with low-high beam selector, Ladder light and service deck lights, Stop/tail lights

FLUIDS

Extended Life Coolant to � 35� C (� 30� F)

OPERATOR ENVIRONMENT

5V USB charging port

12V auxiliary power connection

Cup holders

Diagnostic connection port COM3 and Ethernet

Delayed Engine Shutdown

Dome courtesy light and map lights

Entertainment radio ready: Speakers, Optional Antenna (AM/FM/WB/satellite radio), Radio mounting provisions and 12V power supply

Fire suppression ready

Floor mat, multi-piece & replaceable

Gauges and indicators panel: Critical oil and coolant temperatures; Fuel and DEF level (if applicable); Engine system, brake and transmission fault indicators; Operator selectable max. machine speed by rotary dial; Speedometer, Tachometer

Heated mirrors, right and left

Hoist, body control

Interactive touchscreen vehicle information display: Day/night mode; Action alarm; Quad gauge display

Operator and trainer air suspension seats

Operator Door Power Window

Provision for customer accessory mounting

Push button secure start

Retractable front visor

ROPS cab, insulated/sound suppressed

Stairway and walkway access, 600 mm (24 in)

Steering wheel, tiltable, telescopic

Self-filling to windshield washer fluid from AC condensate

Storage locations for operator gear

Three point seat belt for operator seat

Windshield wiper, intermittent control / washer

Unitized hydraulic powered HVAC with automatic temperature control

Ventilated operator seat

POWER TRAIN

33R51 power train with standard rims

Cat 3512E engine: Automatic engine and DEF thermal management (if applicable); Automatic low voltage idle management; Air cleaner with precleaner (two); Turbocharging (four) with air-to-air aftercooler; Mechanical Electronic Unit Injector (MEUI�-A) fuel system; Automatic starter protection; Automatic ether starting aid

Hydraulic braking system: Automatic Resistive Braking control (ARC), adjustable and automatic; Brake release motor (towing); Engine over speed protection; Extended life brake disc material; Hill start assist/Anti roll back strategy; Oil-cooled, multi-disc (front and rear) � Service, Resistive braking, parking, secondary; Park brake integrated with gear selector

Transmission :Six-speed, automatic power shift with Electronic Clutch Pressure Control (ECPC); Advanced Productivity Electronic Control Strategy (APECS); Body-up reverse neutralizer; Body-up shift inhibitor; Downshift/reverse shift inhibitor; Directional shift management; Enhanced Traction Control System; Programmable top gear; Oil level sensor; Neutral coast inhibitor; Neutral start switch; Lock-up torque converter; Rear axle continuous lubrication/filtration

OTHER EQUIPMENT

Auxiliary "buddy" dumping quick connect

Auxiliary connection 'user defined shutdown'

Auxiliary steering quick connect (towing)

eOMM

Fast fill fuel and DEF remote fill system

Guards for rotating components

Hill Start Assist

Hydraulic Filters, 1,000 hours

Remote flash software and troubleshooting

Secondary steering (automatic)

Tie off points

Tow hooks (front) and tow pin (rear)

Sight glasses for hydraulic oils

S�O�S? ports

Vital Information Management System (VIMS)

Cat Technology Products

Cyber security

Integrated object detection system with touchscreen display

Tire Payload Monitoring System 2 (TPMS 2)

Product Link� Elite

785 Optional Equipment

ELECTRICAL

Auxiliary rear work lights, (one) LH side

Digital Payload Display

LED Lighting system: Additional lighting package, Auxiliary VIMS, Body rear, Seat & park brake

Workshop horn

Truck bodies

MSD II body: 100 m3 (131 yd3)

Dual slope body: 78 m3 (102 yd3)

Body specific side wall and tail extensions

Customizable body liner packages

Body heat exhaust

Rock ejectors

Rear body lighting group: Directional signals, Stop/tail lights

FLUIDS

Extended Life Coolant to � 50� C (� 58� F)

OPERATOR ENVIRONMENT

Emergency stop

Deluxe Cab: Advanced cabin filtration system; Catwalk and handrails for rear cab access; Heated, cooled and ventilated front seat; Power right side window; Suspended companion seat; Storage tray

POWER TRAIN

No air � electric starter with 93-amp hour batteries (four), electric horn and automatic lubrication system

Hydraulic braking system: Advanced ground control with Anti-lock Braking System (ABS) and Dynamic Stability Control (DSC)

Variable speed fan drive

Transmission: Engine pre-lubrication system; Rear axle continuous lubrication/filtration with cooler

Turbine air starter with air tank, air horn and automatic lubrication system

OTHER EQUIPMENT

2560 L (676 gal) fuel tank (non-Tier 4)

Body heat exhaust

Bumper towing � center pin kit

Cold weather start (block heater)

Communication Ar � Minestar� radio

Fire extinguisher, portable

Five piece crankcase guards

Fuel heater, fuel water separator

Fuel tank mud guard

Gauge, brake wear indicator

Ground accessible fluid service center, hydraulic and coolant

Hub odometer, kilometers

Powered access stairway

Rim Diffuser

Wheel chocks

Wireless Electronic Technician (ET)

Working at heights protection

Cat Technology Products

Cruise control

360 degree surround view camera

4G cellular/satellite dual mode

Connectivity bundle (includes: wireless operator ID, bluetooth key FOB to start)

Driver Safety System (DSS) 4.0 Ready

Minestar GPS

Minestar communication group (enables: Minestar Fleet, Aux, and Truck Spotting)

Oil Renewal System (ORS) (non-Tier 4)

Road Analysis Control (RAC)

Minestar Command Autonomous-ready

Compatible Technology and Services

Leverage Caterpillar connected data and security principles to improve efficiencies, increase productivity and make your business more profitable.

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Cat Command for Hauling

Cat® MineStar™ Command for hauling takes advantage of the most sophisticated technologies available to deliver a next-generation haulage solution — one that boosts safety, productivity and availability on busy mine sites, especially those in difficult or remote locations. Command provides the fully integrated operation of autonomous mining systems, allowing them to haul more efficiently with near-continuous operation and move more with fewer people on site. Autonomous trucks operate safely around other equipment, light vehicles and personnel. Command trucks respond to calls to the shovel, move into position, haul to dump points and even report for maintenance — all without an operator on board.

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Cat® MineStar™ Command for hauling takes advantage of the most sophisticated technologies available to deliver a next-generation haulage solution — one that boosts safety, productivity and availability on busy mine sites, especially those in difficult or remote locations. Command provides the fully integrated operation of autonomous mining systems, allowing them to haul more efficiently with near-continuous operation and move more with fewer people on site. Autonomous trucks operate safely around other equipment, light vehicles and personnel. Command trucks respond to calls to the shovel, move into position, haul to dump points and even report for maintenance — all without an operator on board.

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Cat MineStar Detect Fatigue

Fatigued and distracted equipment operators are present on every mine site every day, and the consequences can be costly, even fatal. Cat® MineStar™ Detect can help you identify fatigue and distraction — and address it — in real time. This subscription-based offering combines our industry-leading Driver Safety System technology with risk assessments, expertise, change management training and educational support to help you build a complete fatigue and distraction management program.

To confirm availability and to purchase a subscription contact your Caterpillar dealer. For more information on subscription terms, please visit www.caterpillar.com/en/legal-notices/minestar-software-end-user-agreement.

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Fatigued and distracted equipment operators are present on every mine site every day, and the consequences can be costly, even fatal. Cat® MineStar™ Detect can help you identify fatigue and distraction — and address it — in real time. This subscription-based offering combines our industry-leading Driver Safety System technology with risk assessments, expertise, change management training and educational support to help you build a complete fatigue and distraction management program.

To confirm availability and to purchase a subscription contact your Caterpillar dealer. For more information on subscription terms, please visit www.caterpillar.com/en/legal-notices/minestar-software-end-user-agreement.

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Cat MineStar Edge

Cat® MineStar Edge™ is a technology platform that delivers more connected, integrated, scalable and intuitive products that extend further up and down the value chain. Edge makes it possible for you to use proven MineStar technologies across your entire mining organization and creates an operational ecosystem that provides visibility to every aspect of your operation. Edge delivers near-real-time access to data that was up to 98% accurate and enables you to make changes in-shift while already knowing the impact those changes will have further down the value chain?

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Cat® MineStar Edge™ is a technology platform that delivers more connected, integrated, scalable and intuitive products that extend further up and down the value chain. Edge makes it possible for you to use proven MineStar technologies across your entire mining organization and creates an operational ecosystem that provides visibility to every aspect of your operation. Edge delivers near-real-time access to data that was up to 98% accurate and enables you to make changes in-shift while already knowing the impact those changes will have further down the value chain?

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Cat Fleet for Surface

Cat® MineStar Fleet is the single best source for fleet management information. An integrated fleet monitoring and management system, it can be used with any machine or system to measure, manage and maximize every facet of an operation, no matter the size or type. Fleet provides real-time visibility to cycle time, payload and other key operational parameters. It monitors machine locations and material movement and provides alerts of misroutes to ensure material is moved to the proper location.

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Cat® MineStar Fleet is the single best source for fleet management information. An integrated fleet monitoring and management system, it can be used with any machine or system to measure, manage and maximize every facet of an operation, no matter the size or type. Fleet provides real-time visibility to cycle time, payload and other key operational parameters. It monitors machine locations and material movement and provides alerts of misroutes to ensure material is moved to the proper location.

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Cat Health

Through regular monitoring of machine conditions, mines can adopt a more proactive approach to maintenance and repair. Equipment health data is a key contributor to that approach. Data helps mines identify equipment problems long before failure.

Accessing the right data at the right time is critical to improving operational intelligence and machine predictive analysis. Cat® MineStar™ Health helps you meet that need by connecting you to your machines and delivering that important information. The MineStar Health portfolio set consists of Connectivity Enablers that collect, convert and transmit equipment data; and Applications that visualize, analyze and report health equipment data.

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Through regular monitoring of machine conditions, mines can adopt a more proactive approach to maintenance and repair. Equipment health data is a key contributor to that approach. Data helps mines identify equipment problems long before failure.

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Explore Technology

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See how 785 compares against frequently compared products.

Off-Highway Trucks

Selected

785

Nominal Rated Payload (33.00R51 Tires): 153 ton (US); 139 t
Rated Gross Machine Weight (33.00R51 tires): 550000 lb; 249476 kg
Gross Power - SAE J1995: 1600 hp; 1193 kW

Off-Highway Trucks

785D

Nominal Rated Payload: 155 ton (US); 141 t
Rated Gross Machine Weight: 550000 lb; 249476 kg
Gross Power - SAE J1995: 1450 hp; 1082 kW

View Details

Off-Highway Trucks

789

Nominal Rated Payload: 213 ton (US); 193 t
Rated Gross Machine Weight: 715000 lb; 324318 kg
Gross Power - SAE J1995:2014: 2100 hp; 1566 kW

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Mining Trucks 785

Overview

A Mining Industry Game Changer

Benefits

Up to 5% Fuel Reduction in Cycle Times

34% More Operator Space

Up to 9% Less Fuel Consumption

Features At A Glance

Product Specifications for 785

Engine

Weights - Approximate

Weight Distributions - Approximate

Final Drives

Transmission

Tires

Braking System

Capacity - MSD II - 100% Fill Factor

Body Hoists

Suspension

Service Refill Capacities

Cab

Steering

Dimensions (All dimensions are approximate. MSD II Body, 33R51 tires, unloaded machine.)

785 Standard Equipment

ELECTRICAL

FLUIDS

OPERATOR ENVIRONMENT

POWER TRAIN

OTHER EQUIPMENT

Cat Technology Products

785 Optional Equipment

ELECTRICAL

Truck bodies

FLUIDS

OPERATOR ENVIRONMENT

POWER TRAIN

OTHER EQUIPMENT

Cat Technology Products

Product Specifications for 785

Engine

Weights - Approximate

Weight Distributions - Approximate

Final Drives

Transmission

Tires

Braking System

Capacity - MSD II - 100% Fill Factor

Body Hoists

Suspension

Service Refill Capacities

Cab

Steering

Dimensions (All dimensions are approximate. MSD II Body, 33R51 tires, unloaded machine.)

785 Standard Equipment

ELECTRICAL

FLUIDS

OPERATOR ENVIRONMENT

POWER TRAIN

OTHER EQUIPMENT

Cat Technology Products

785 Optional Equipment

ELECTRICAL

Truck bodies

FLUIDS

OPERATOR ENVIRONMENT

POWER TRAIN

OTHER EQUIPMENT

Cat Technology Products

Compatible Technology and Services

Cat Command for Hauling

Cat MineStar Detect Fatigue

Cat MineStar Edge

Cat Fleet for Surface

Cat Health

assignment Product Brochures and More Are Ready to Download!

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Take the interactive virtual product tour to explore the great features and benefits of the 785

Media Gallery

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