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785

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.

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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