PRODUCTIVITY
SAFETY
OPERATOR COMFORT
OPERATOR EFFICIENCY & PRODUCTIVITY
SERVICEABILITY
DURABILITY AND LONG LIFE
CAT BODIES
SUSTAINABILITY
VERSATILITY
TECHNOLOGY SOLUTIONS
BETTER ACCESS TO DATA
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
Weights - Approximate
| Nominal Rated Payload (36.00R51 Tires) |
147 t |
162 ton (US) |
| Rated Gross Machine Weight (36.00R51 tires) |
255826 kg |
564000 lb |
| Nominal Rated Payload (33.00R51 Tires) |
143 t |
158 ton (US) |
| Rated Gross Machine Weight (33.00R51 tires) |
249476 kg |
550000 lb |
| Chassis Weight (33.00R51 Tires) |
85156 kg |
187736 lb |
| Chassis Weight (36.00R51 Tires) |
87525 kg |
192959 lb |
| Body Weight |
26208 kg |
57779 lb |
| 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) |
Unlined HP Body. Body weight varies depending on body selection and configuration. |
Engine
| Gross Power - SAE J1995 |
1193 kW |
1600 hp |
| Net Power - SAE J1349 |
1125 kW |
1509 hp |
| Engine Model |
Cat 3512E |
| Emissions Rating |
Fuel Optimized |
| Bore |
170 mm |
6.7 in |
| Stroke |
215 mm |
8.5 in |
| Displacement |
58.56 l |
3573 in³ |
| 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 |
Capacity - HP Body - 100% Fill Factor
| Heaped (SAE 2:1)* |
110 m3 / 144 yd3 |
| Struck |
84 m3 / 110 yd3 |
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. |
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 |
Tires
| Optional Tires |
33.00R51 |
| Optional Tire |
36.00R51 |
| Rims |
610 mm (24") Rims (optional). 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. |
Braking System
| Service Brakes |
Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated |
| Front Wet Disc Brake Surface Area |
61270 cm² |
9487 in² |
| Rear - Wet Disc Brake Surface Area |
89728 cm² |
13908 in² |
| Standards |
Service and Secondary: ISO 3450:2011 |
| Parking Brake |
Four corner, multi disc, spring applied, hydraulically released |
Body Hoists
| Type |
Twin, two-stage hydraulic cylinders with snubbing valve. |
| Pump Flow - High Idle |
847 l/min |
223 gal/min |
| Relief Valve Setting - Raise |
17225 kPa |
2500 psi |
| 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 |
Suspension
| Type |
Self-contained nitrogen/oil cylinders, pin-to-pin mounting, top & bottom double shear clevis attachments |
| Effective Cylinder Stroke - Front |
320 mm |
12.6 in |
| Effective Cylinder Stroke - Rear |
165 mm |
6.5 in |
| Rear axle - Oscillation |
+/- 5.4 degrees |
Service Refill Capacities
| Fuel Tank |
1552 l |
410 gal (US) |
| Diesel Exhaust Fluid Tank |
136 l |
36 gal (US) |
| Cooling System |
476 l |
126 gal (US) |
| Crankcase |
204 l |
54 gal (US) |
| Front Wheels - Each |
27 l |
7.1 gal (US) |
| Differential - Final Drives |
527 l |
139 gal (US) |
| Steering Tank |
110 l |
29 gal (US) |
| Steering System - Includes Tank |
117 l |
31 gal (US) |
| Brake/Hoist Tank |
511 l |
135 gal (US) |
| Brake Hoist System - Includes Tank |
541 l |
143 gal (US) |
| Torque Converter - Transmission System - Including Sump |
175 l |
46 gal (US) |
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. |
Steering
| Steer Angle |
25.1 ° |
25.1 ° |
| Turning Diameter - ISO 7457:1997 (33.00R51 tires) |
29.4 m |
96.6 ft |
| Steering Standards |
ISO 5010:2019 |
Dimensions (All dimensions are approximate. MSD II Body, 33R51 tires, unloaded machine.)
| Height - Top of ROPS |
5208 mm |
17.09 ft |
| Overall Body Length |
11985 mm |
39.32 ft |
| Inside Body Length |
8318 mm |
27.29 ft |
| Overall Length |
11957 mm |
39.23 ft |
| Wheel Base |
5180 mm |
17 ft |
| Rear Axle - Tail |
3829 mm |
12.56 ft |
| Ground Clearance |
1004 mm |
3.29 ft |
| Dump Clearance |
1128 mm |
3.7 ft |
| Loading Height - Empty |
5299 mm |
17.39 ft |
| Inside Body Depth - Maximum |
2790 mm |
9.15 ft |
| Overall Height - Body Raised |
12032 mm |
39.48 ft |
| Operating Width |
7535 mm |
24.72 ft |
| Centerline Front Tire Width |
4850 mm |
15.91 ft |
| Engine Guard Clearance |
1038 mm |
3.41 ft |
| Overall Canopy Width |
7562 mm |
24.81 ft |
| Outside Body Width |
6714 mm |
22 ft |
| Inside Body Width |
6010 mm |
19.72 ft |
| Front Canopy Height |
6035 mm |
19.8 ft |
| Rear Axle - Clearance |
990 mm |
3.25 ft |
| Centerline of Rear Dual Tire Width |
4285 mm |
14.06 ft |
| Overall Tire Width |
6277 mm |
20.59 ft |
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. |
Transmission
| Forward - 1 |
12 km/h |
7.4 mile/h |
| Forward - 2 |
16.2 km/h |
10 mile/h |
| Forward - 3 |
22.1 km/h |
13.7 mile/h |
| Forward - 4 |
29.8 km/h |
18.5 mile/h |
| Forward - 5 |
40.2 km/h |
25 mile/h |
| Forward - 6 |
57.2 km/h |
35.6 mile/h |
| Reverse |
11.6 km/h |
7.2 mile/h |
| Top Speed - Loaded |
57.2 km/h |
35.6 mile/h |
| Note |
Maximum travel speeds with standard 33.00-R51 tires. |
