Cat Off-Highway Trucks 785 | Mining

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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