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785 (04)

Mining Trucks

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.It’s engineered for performance, designed for comfort and built to last. Developed specifically for high production mining applications, the 785 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.

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Gross Power - SAE J1995 1082 kW
Net Power - SAE J1349 1005 kW
Nominal Rated Payload 145 t
Engine Model Cat® 3512C HD-EUI
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785 (04)
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OVERVIEW

High Volume. High Reliability. Lower Costs.

FEATURES & BENEFITS

PRODUCTIVITY

    The 785 is powered by the 3512C HD engine, a 12-cylinder, four-stroke design that uses long, effective power strokes for more complete fuel... Read more

SAFETY

    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 po... Read more

OPERATOR COMFORT

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-su... Read more

SERVICEABILITY

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 en... Read more

DURABILITY AND LONG LIFE

    The 785 frame uses a box-section design, incorporating two forgings and 24 castings in high-stress areas with deep penetrating and continuou... Read more

CAT BODIES

    Cat bodies are the best choice for the 785. They’re designed to be an integral part of the entire vehicle system, ensuring you achieve maximum ch... Read more

SUSTAINABILITY

    We’ve designed the 785 with a number of enhancements that lessen its impact on the environment. Features like engine oil renewal systems and... Read more

TECHNOLOGY SOLUTIONS

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... Read more

SPECIFICATIONS FOR 785 (04)

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Engine
Gross Power - SAE J1995 1082 kW
Net Power - SAE J1349 1005 kW
Engine Model Cat® 3512C HD-EUI
Bore 170 mm
Stroke 215 mm
Displacement 58.56 l
Emissions Fuel Optimized
Weights - Approximate
Nominal Rated Payload 145 t
Rated Gross Machine Weight 249476 kg
Body Weight - MSD 21200 kg
Chassis Weight 83820 kg
Body Weight Range HP (144 cyd): 20 917 kg (46,114 lb);
Transmission
Forward - 1 12.1 km/h
Forward - 2 16.3 km/h
Forward - 3 22.2 km/h
Forward - 4 29.9 km/h
Forward - 5 40.6 km/h
Forward - 6 54.8 km/h
Reverse 11 km/h
Top Speed - Loaded 54.8 km/h
Final Drives
Differential Ratio 2.10:1
Planetary Ratio 10.83:1
Total Reduction Ratio 22.75:1
Note Double reduction. planetary with full floating axles.
Suspension
Effective Cylinder Stroke - Front 320 mm
Effective Cylinder Stroke - Rear 165 mm
Rear axle - Oscillation ±5.4 degrees
Brakes
Brake Surface - Front 61269 cm²
Brake Surface - Rear 89727 cm²
Standards ISO 3450:2011
Body Hoists
Pump Flow - High Idle 750 L/min
Relief Valve Setting - Raise 17238 kPa
Body Raise Time - High Idle 15.2 s
Body Lower Time - High Idle 15.9 s
Body Lower Time - Float 16.2 s
Body Power Down - High Idle 15.9 s
Note (1) Twin, two-stage hydraulic cylinders with snubbing valve
Note (2) Power raise in both stages; power down in second stage.
Body - Dual Slope
Body Weight 22295 kg
Heaped (SAE 2:1) 78 m³
Body - X
Body Weight 25160 kg
Heaped (SAE 2:1) 85 m³
Steering
Turning Diameter - Front 29.8 m
Steer Angle 31 °
Steering Standards ISO 5010:2019
Weight Distributions - Approximate
Front Axle - Empty* 45-46%
Rear Axle - Empty* 54-55%
Front Axle - Loaded - Target 33 %
Rear Axle - Loaded - Target 67 %
Rear Axle - Loaded *Depends on body configuration.
Rear Axle - Empty 52.50%
Note Weight distributions optimized with Cat body.
Front Axle - Empty 47.50%
Front Axle - Loaded 32.60%
Service Refill Capacities
Fuel Tank - Standard 1893 l
Cooling System 490 l
Crankcase 204 l
Differential - Final Drives 650 l
Steering Tank 94 l
Steering System - Including Tank 117 l
Brake/Hoist Hydraulic Tank 540 l
Brake Hoist System - Includes Tank 641 l
Torque Converter/Transmission System - Including Sump 248 l
Fuel Tank - Optional 2498 l
Front Wheels - Each 13.5 l
ROPS
ROPS Standards SAE J1040 APR88 ISO 3471:1994
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).
Sound Standards (1) 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.
Tires
Standard Tires 33.00-R51 (E3 & E4)
Berat - Pendekatan
Kisaran Bobot Kerja Chassis Kosong (EOMW, Operating Chassis Weight Range Empty) Minimum/Maksimum %
Cab
Heater / Defroster 34462 Btu/kWh
Air Conditioning 6.9 kW (23,543 BTU/hr)
ROPS Standards (1) ISO 3471:2008 and ISO13459:2012
FOPS Standards ISO 3449:2005 Level II and ISO 13459:2012 Level II
Body
Note (1) HP Body, Low Volume 85m3 (111 yd3);
Note (2) Refer to the Cat Mining Trucks Payload Management Guidelines AEXQ0250 for maximum gross machine weight limitations
Tires and Rims
Note 1 Standard Tire 33.00-R51 (E3 and E4)
Note 2 Quick Change Rims optional. Caterpillar recommends the customer evaluate all job conditions and consult tire manufacturer for proper tire selection and Tonne Kilometers Per Hour (TKPH) Ton-Miles Per Hour (TMPH) capabilities.
Braking System
Service Brakes Four corner, Wet multi disc, oil cooled, air over hydraulic actuated
Front Wet Disc Brake Surface Area 61269 cm³
Rear - Wet Disc Brake Surface Area 89681 cm³
Standards ISO 3450:2011
Parking Brakes Four-corner, wet multi disc, Spring applied, Hydraulically Released
Dimensions
Height - Top of ROPS 5560 mm
Overall Length 12310 m
Wheel Base 5180 mm
Rear Axle - Tail 4690 mm
Ground Clearance 1165 mm
Dump Clearance 1365 mm
Loading Height - Empty 5615 mm
Overall Height - Body Raised 11895 mm
Centerline Front Tire Width 4870 mm
Engine Guard Clearance 1000 mm
Overall Canopy Width 7560 mm
Outside Body Width 6076 mm
Inside Body Width 6060 mm
Front Canopy Height 5880 mm
Rear Axle - Clearance 980 mm
Centerline of Rear Dual Tire Width 4285 mm
Overall Tire Width 6265 mm
Dimensions (Approximate)
Height - Top of ROPS 5530 mm
Overall Length 12520 mm
Wheel Base 5180 mm
Rear Axle - Tail 3780 mm
Ground Clearance 1165 mm
Dump Clearance 1275 mm
Loading Height - Empty 4890 mm
Overall Height - Body Raised 11860 mm
Centerline Front Tire Width 4870 mm
Engine Guard Clearance 1045 mm
Overall Canopy Width 7660 mm
Outside Body Width 6090 mm
Inside Body Width 5850 mm
Front Canopy Height 5530 mm
Rear Axle - Clearance 3.2 ft
Centerline of Rear Dual Tire Width 4285 mm
Overall Tire Width 6265 mm
Dimensions (All dimensions are approximate. MSD II Body, 33R51 tires, unloaded machine.)
Height - Top of ROPS 5610 mm
Overall Length 12685 mm
Wheel Base 5180 mm
Rear Axle - Tail 4610 mm
Ground Clearance 1165 mm
Dump Clearance 1125 mm
Loading Height - Empty 5300 mm
Overall Height - Body Raised 11800 mm
Centerline Front Tire Width 4870 mm
Engine Guard Clearance 1045 mm
Overall Canopy Width 7560 mm
Outside Body Width 6250 mm
Inside Body Width 6020 mm
Front Canopy Height 5890 mm
Rear Axle - Clearance 980 mm
Centerline of Rear Dual Tire Width 4285 mm
Overall Tire Width 6265 mm

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