Engine
| Gross Power - SAE J1995 | 1450 hp 1082 kW |
| Engine Model | Cat® 3512C HD Cat® 3512C HD |
| Bore | 6.7 in 170 mm |
| Stroke | 8.4 in 215 mm |
| Displacement | 3573.6 in³ 58.56 l |
Mining Trucks 785D
Request A Price Find DealerKey Specs
- Nominal Rated Payload
- 155 ton (US)
- 141 t
- Rated Gross Machine Weight
- 550000 lb
- 249476 kg
- Gross Power - SAE J1995
- 1450 hp
- 1082 kW
Overview
High Volume. High Reliability . Lower Costs.
The Cat® 785 model 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. The 785D carries on that tradition.
It’s engineered for performance, designed for comfort and built to last. Developed specifically for high production mining applications, the 785D keeps material moving at high volume to lower your cost-per-ton. Rugged construction creates a durable machine, while easy maintenance procedures ensure high reliability and long life with low operating costs.
Benefits
Easy Maintenance
Ensures high reliability and long life with low operating costs.
Durable & Reliable
Rugged construction creates a durable machine with demonstrated reliability and proven performance.
Lower Costs
Thanks to health technologies, features that increase component life and settings to optimize performance.
Features At A Glance
- The 785D is powered by the 3512C HD engine, a 12-cylinder, four-stroke design that uses long, effective power strokes for more complete fuel combustion and optimum fuel efficiency.
- The 23% net torque rise provides unequaled lugging force during acceleration, on steep grades and in rough underfoot conditions. Torque rise effectively matches transmission shift points for maximum efficiency and fast cycle times.
- The mechanical drive powertrain and power shift transmission provide unmatched efficiency and control on steep grades, in poor underfoot conditions and on haul roads with high rolling resistance.
- The engine provides additional retarding by running against compression with zero fuel burn on downhill hauls, which increases fuel efficiency.
- Access and egress are safer thanks to the 600-mm-wide (24-in-wide) diagonal stairway, slip-resistant surfaces and hand rails, plus an optional powered access ladder.
- Superior control is delivered by a patented braking system that provides immediate, fade-resistant braking and retarding.
- The 785D is designed for excellent all-around visibility and clear sight lines, enhanced by wide-angle mirrors and the standard 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.
- Dumping operations are safer thanks to a body raised indicator and reverse neutralizer when dumping.
- Toe guards on the front and side platforms provide protection from slipping and also to prevent any tools or loose items falling from the platform when maintenance or service work is being performed.
- Operators enjoy an ergonomic layout, excellent all-around visibility, and controls, levers, switches and gauges that are positioned for ease of use.
- The integral, sound-suppressed ROPS/FOPS cab is resiliently mounted to the mainframe to isolate the operator from sound and vibration for a quiet, secure and comfortable ride.
- The cab has numerous features that enhance comfort and reduce fatigue, such as an air suspension seat, reduced vibration, air conditioning and sound suppression.
- Time spent on regular maintenance procedures is reduce with easy access to daily service points and major components; ground-level access to tanks, filters, drains and engine shutdown; a maintenance platform that provides access to the engine engine, steering hydraulic tank and battery compartment; and an optional fast-fill service center, which enables high-speed fuel and oil exchange.
- Enhanced serviceability and 500-hour service intervals are designed to increase machine availability and productivity.
- Electric connectors are sealed to lock out dust and moisture, harnesses are braided for protection, and wires are color- coded for easy diagnosis and repair.
- The VIMS onboard diagnostic systems continuously monitor all critical machine functions and components to help locate faults quickly for faster repair.
- The 785D frame uses a box-section design, incorporating two forgings and 24 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.
- Wheel Stations offer improved durability, which results in less frequent replacement for higher uptime and less unscheduled maintenance.
- Component life is enhanced thanks to the standard rear-axle continuous filtration feature. Cleaner oil helps promote lubrication that leads to longer life.
- Uptime is improved thanks to planned component replacement intervals that target up to a 20,000 SMU for the engine, plus component commonality with proven 3500 HD engines
- 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 are the best choice for the 785D. They’re designed to be an integral part of the entire vehicle system, ensuring you achieve maximum chassis life.
- The High Performance (HP) body features a lightweight, simplified and durable design that provides complete front machine coverage and extended overhead protection.
- Available in several sizes, the MSD II body is ideal for mature mines with good operational and maintenance practices. It can be lined or unlined, with a site-specific body designed to maximize performance.
- Intended for tough applications including greenfield sites and contracting mines, the Dual Slope body provides excellent load retention, maintains a low center of gravity with optimum load distribution and reduces shock loading.
- The specialty combination body for coal and coal overburden accommodates light density material while maintaining payload potential.
- We’ve designed the 785D with a number of enhancements that lessen its impact on the environment. Features like engine oil renewal systems and continuous rear axle filtration decrease the amount of waste contributed to the environment.
- The engine provides additional retarding by running against compression on downhill hauls. During retarding applications, the engine ECM does not inject fuel into the cylinders for exceptional fuel economy.
- We continue to research alternative energy sources such as biofuels and a liquefied natural gas-supplied Dynamic Gas Blending solution, and we’re implementing power options like electrification and trolley to find new ways to reduce emissions.
- Cat engines are compatible with diesel fuel blended with lower-carbon intensity fuels such as biodiesel FAME (fatty acid methyl ester). They are also compatible with renewable fuels such as HVO (Hydrotreated Vegetable Oil) and GTL (Gasto-Liquid) alternative fuels that are drop-in replacements for diesel. HVO and GTL are acceptable for use in all Cat engines at any blend level and up to 100%.
- By rebuilding machines and components, the Cat Rebuild and Cat Reman programs preserve raw materials, conserve energy and reduce emissions.
- MineStar Fleet is a fleet monitoring system that can be used to measure, manage and maximize the overall hauling operation.
- The MineStar Detect in-cab Driver Safety System intervenes when it detects fatigue or distraction
- Machine health and condition monitoring solutions enable a proactive approach to maintenance.
Product Specifications for 785D
Weights - Approximate
| Nominal Rated Payload | 155 ton (US) 141 t |
| Rated Gross Machine Weight | 550000 lb 249476 kg |
| Body Weight - MSD | 46738 lb 21200 kg |
| Chassis Weight | 183270 lb 83130 kg |
Transmission
| Forward - 1 | 7.5 mile/h 12.1 km/h |
| Forward - 2 | 10.2 mile/h 16.3 km/h |
| Forward - 3 | 13.8 mile/h 22.2 km/h |
| Forward - 4 | 18.6 mile/h 29.9 km/h |
| Forward - 5 | 25.2 mile/h 40.6 km/h |
| Forward - 6 | 34 mile/h 54.8 km/h |
| Reverse | 6.8 mile/h 11 km/h |
| Top Speed - Loaded | 34 mile/h 54.8 km/h |
Final Drives
| Differential Ratio | 2.10:1 2.10:1 |
| Planetary Ratio | 10.83:1 10.83:1 |
| Total Reduction Ratio | 22.75:1 22.75:1 |
Suspension
| Effective Cylinder Stroke - Front | 12.6 in 320 mm |
| Effective Cylinder Stroke - Rear | 6.5 in 165 mm |
Brakes
| Brake Surface - Front | 9497 in² 61269 cm² |
| Brake Surface - Rear | 13908 in² 89727 cm² |
| Standards | ISO 3450:2011 ISO 3450:2011 |
Body Hoists
| Pump Flow - High Idle | 198 gal/min 750 l/min |
| Relief Valve Setting - Raise | 2500 psi 17238 kPa |
| Body Raise Time - High Idle | 15.2 s 15.2 s |
| Body Lower Time - High Idle | 15.9 s 15.9 s |
| Body Lower Time - Float | 16.2 s 16.2 s |
| Body Power Down - High Idle | 15.9 s 15.9 s |
Body - Dual Slope
| Body Weight | 49150 lb 22295 kg |
| Heaped (SAE 2:1) | 102 yd³ 78 m³ |
Body - X
| Body Weight | 55468 lb 25160 kg |
| Heaped (SAE 2:1) | 111 yd³ 85 m³ |
Steering
| Steer Angle | 24 ° 24 ° |
| Turning Diameter - Front | 97.7 ft 29.8 m |
| Steering Standards | ISO 5010:2007 ISO 5010:2007 |
Weight Distributions - Approximate
| Front Axle - Empty* | 45-46% 45-46% |
| Rear Axle - Empty* | 54-55% 54-55% |
| Front Axle - Loaded - Target | 33 % 33 % |
| Rear Axle - Loaded - Target | 67 % 67 % |
| Rear Axle - Loaded | *Depends on body configuration. *Depends on body configuration. |
| Rear Axle - Empty | *Depends on body configuration. *Depends on body configuration. |
| Note | Weight distributions optimized with Cat body. Weight distributions optimized with Cat body. |
Service Refill Capacities
| Fuel Tank - Standard | 500 gal (US) 1893 l |
| Cooling System | 100 gal (US) 379 l |
| Crankcase | 54 gal (US) 204 l |
| Differential - Final Drives | 115 gal (US) 436 l |
| Steering Tank | 24 gal (US) 90 l |
| Steering System - Including Tank | 31 gal (US) 117 l |
| Brake/Hoist Hydraulic Tank | 89 gal (US) 337 l |
| Brake Hoist System - Includes Tank | 169 gal (US) 641 l |
| Torque Converter/Transmission System - Including Sump | 65.51 gal (US) 248 l |
Cab
| Heater / Defroster | 10.1 MW·h 34462 Btu/kWh |
| Air Conditioning | 6.9 kW (23,543 BTU/hr) 6.9 kW (23,543 BTU/hr) |
| ROPS Standards (1) | ISO 3471:2008 and ISO13459:2012 ISO 3471:2008 and ISO13459:2012 |
| FOPS Standards | ISO 3449:2005 Level II and ISO 13459:2012 Level II ISO 3449:2005 Level II and ISO 13459:2012 Level II |
Sound
| Sound Standards | The dynamic operator sound pressure levels are measured according to work cycle procedures specified in ISO 6396:2008 is 80 dB(A). The dynamic operator sound pressure levels are measured according to work cycle procedures specified in ISO 6396:2008 is 80 dB(A). |
| Sound Standards (1) | The dynamic exterior sound power level for the standard machine is tested using ISO 6395:2008 procedures is 121 dB(A). The dynamic exterior sound power level for the standard machine is tested using ISO 6395:2008 procedures is 121 dB(A). |
| Sound Standards (2) | Hearing protection may be needed when operating with an open operator station and cab (when not properly maintained or doors/windows open) for extended periods or in a noisy environment. Hearing protection may be needed when operating with an open operator station and cab (when not properly maintained or doors/windows open) for extended periods or in a noisy environment. |
Tires
| Standard Tires | 33.00-R51 (E3 & E4) 33.00-R51 (E3 & E4) |
785D Standard Equipment
ELECTRICAL
- Alarm, Back-up
- Alternator (105 A)
- Batteries, 93Ah, Low-maintenance, 12V (2)
- Converter, 12V electrical
- Electrical System, 24V, 15A
- Lighting System
OPERATOR ENVIRONMENT
- Air Conditioner
- Ashtray/cigarette lighter
- Coat hook
- Diagnostic connection port
- Dome courtesy light
- Entertainment radio ready
- Gauges/Indicators
- Heater/defroster
- Horn
- Hoist body control, electric
- Integrated Object Detection System
- ROPS cab insulated/sound suppressed
- Storage compartment
- Seatbelt, 75 mm (3 in), retractable
- Steering wheel, tilt, padded, telescopic
- Sun visor
- Tinted glass
- Window, electric powered, operator
- Windshield wiper, intermittent control and washer
POWER TRAIN
- Cat 3512C HD-EUI diesel engine
- Braking System
- Transmission
OTHER STANDARD EQUIPMENT
- Air Line Dryer (2)
- Body Mounting Group
- Auto lubrication system (Lincoln)
- Dumping, Auxiliary Quick Connect for “Buddy Dumping”
- Steering, Auxiliary Quick Connect for Towing
- Continuous rear axle filtration
- Diagonal stairway, 600 mm (24 in)
- Driveline Operator Safety Guard
- Fast-fill Fuel System
- VIMS Dataport
- Battery Disconnect
- High speed crankcase oil change
- Reservoirs (Separate)
- S•O•S℠ sample ports
- Supplemental steering (automatic)
- Tie Down Eyes
- Tow Hooks, Front
- Traction Control System
- Vandalism Protection Locks
- Vital Information Management System (VIMS) includes: VIMSpayload monitor, MAX payload and speed manager
785D Optional Equipment
BODIES
- Body, X
- MSD II (Mine Specific Design)
- Dual Slope
- Custom Body Options
BODY EXTENSIONS
- Tail
- Wrap around
LINERS
- Full-length liner
- Tail extension wrap-around
OPERATOR ENVIRONMENT
- Footrest, operator
- Hose, cab clean-out
- Vacuum, cab clean-out
POWER TRAIN
- Pre-lube, engine
- Oil renewal system
- Oil cooler, rear axle
COLD WEATHER
- Starting, Cold Weather
TIRES AND RIMS
- Spare rims
INFORMATION MANAGEMENT
- Control, Road Analysis (RAC)
SERVICE CENTER
- Service Center, Wiggins
MISCELLANEOUS
- Fire extinguisher, portable
- Hub Odometer, Kilometers
- Hub Odometer, Miles
- Wheel Chocks
- Heater, Diesel fuel
Compatible Technology and Services
Leverage Caterpillar connected data and security principles to improve efficiencies, increase productivity and make your business more profitable.
Command
Fleet
Health
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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 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.
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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- Nominal Rated Payload
- 155 ton (US)
- 141 t
- Rated Gross Machine Weight
- 550000 lb
- 249476 kg
- Gross Power - SAE J1995
- 1450 hp
- 1082 kW
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- 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
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- 1566 kW
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