Skip to main content
loading site..

785

Cat Mining Trucks are engineered for performance, designed for comfort and built to last. These powerful haul trucks are able to move more material at a lower cost.

785

Cat Mining Trucks are engineered for performance, designed for comfort and built to last. These powerful haul trucks are able to move more material at a lower cost.
Specifications
Body Hoists
  • Type
    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
Braking System
  • Service Brakes
    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
  • Parking Brake
    Four corner, multi disc, spring applied, hydraulically released
Cab
  • Air Conditioning
    HFC - 134A refrigerant: 24,500 Btu/h
  • Heater / Defroster
    33300 Btu/h 33300 Btu/h
  • ROPS Standards (1)
    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.
Capacity - MSD II - 100% Fill Factor
  • Struck
    72 m^3 / 94 yd^3
  • Heaped (SAE 2:1)
    99 m^3 / 129 yd^3
  • Note
    Consult your local Cat dealer for body recommendations.
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
Engine
  • Gross Power - SAE J1995
    1600 hp 1193 kW
  • Net Power - SAE J1349
    1509 hp 1125 kW
  • Engine Model
    Cat 3512E
  • Emissions Rating
    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.
  • 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
Final Drives
  • Type
    Double reduction, planetary with full floating axles.
  • Differential Ratio
    2:10:01
  • Planetary Ratio
    10.83:1
  • Total Reduction Ratio
    22.75:1
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
Sound
  • Sound Standards
    The operator sound pressure level, 77 dB(A) with direct drive and 75 dB9A) with optional clutch, tested to ISO 6396:2008.
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
Suspension
  • Type
    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
Tires
  • Standard Tire
    33.00R51
  • Optional Tire
    36.00R51
  • Rims
    610 mm (24") Rims (standard). 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.
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.
Weight Distributions - Approximate
  • Front Axle - Empty
    48%
  • Rear Axle - Empty
    52%
  • Front Axle - Loaded
    33%
  • Rear Axle - Loaded
    67%
  • Note
    Weight distributions optimized with Cat body.
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
  • Note (2)
    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.
Benefits

PRODUCTIVITY

  • 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.

SAFETY

  • 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.

OPERATOR COMFORT

  • 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.

OPERATOR EFFICIENCY & PRODUCTIVITY

  • 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.

SERVICEABILITY

  • 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.

DURABILITY AND LONG LIFE

  • 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.

CAT BODIES

  • 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.

SUSTAINABILITY

  • 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.

VERSATILITY

  • 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.

TECHNOLOGY SOLUTIONS

  • 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.

BETTER ACCESS TO DATA

  • 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.
Equipment Info

ELECTRICAL

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

FLUIDS

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

OPERATOR ENVIRONMENT

5V USB charging port

POWER TRAIN

33R51 power train with standard rims

OTHER EQUIPMENT

Auxiliary "buddy" dumping quick connect

Cat Technology Products

Cyber security
360 view
Product videos
Request a Quote

Request a customized financing solution

Get even more value with an extended warranty.

Extend the life of your equipment

Contact an equipment specialist