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789

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789

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
    106.5 gal/min 403 l/min
  • Relief Valve Setting - Raise
    2749 psi 18950 kPa
  • Body Raise Time - High Idle
    14 s 14 s
  • Body Lower Time - Float
    16 s 16 s
Braking System
  • Service Brakes
    Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated
  • Front Wet Disc Brake Surface Area
    12662 in² 81693 cm²
  • Rear - Wet Disc Brake Surface Area
    20861 in² 134590 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/hr
  • Heater / Defroster
    33300 Btu/h 33300 Btu/h
  • FOPS Standards
    FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II for Operator and ISO 13459:2012 Level II for Trainer.
  • ROPS Standards (2)
    ROPS (Rollover Protective Structure) meets ISO 3471:2008 for Operator and ISO 13459:2012 for Trainer.
Capacity - HP Body - 100% Fill Factor
  • Struck
    77 m3(101 yd3)
  • Heaped (SAE 2:1)*
    187
  • Note (1)
    Consult your local Cat dealer for body recommendations
Dimensions (Approximate)
  • Height - Top of ROPS
    5550 mm 18.25 ft
  • Overall Body Length
    12945 mm 42.5 ft
  • Inside Body Length
    8730 mm 28.67 ft
  • Overall Length
    12970 mm 42.58 ft
  • Wheel Base
    57000 mm 18.67 ft
  • Rear Axle - Tail
    3856 mm 12.67 ft
  • Ground Clearance
    1304 mm 4.25 ft
  • Dump Clearance
    1585 mm 5.17 ft
  • Loading Height - Empty
    6147 mm 20.17 ft
  • Rear Sidewall Height
    1010 mm 3.33 ft
  • Inside Body Depth - Maximum
    3075 mm 10.08 ft
  • Overall Height - Body Raised
    11534 mm 37.83 ft
  • Operating Width
    7822 mm 25.67 ft
  • Centerline Front Tire Width
    5410 mm 17.75 ft
  • Engine Guard Clearance
    1290 mm 4.25 ft
  • Overall Canopy Width
    7769 mm 25.5 ft
  • Outside Body Width
    7123 mm 23.33 ft
  • Inside Body Width
    6920 mm 22.67 ft
  • Front Canopy Height
    6739 mm 22.08 ft
  • Rear Axle - Clearance
    1263 mm 4.17 ft
  • Centerline of Rear Dual Tire Width
    4695 mm 15.42 ft
  • Overall Tire Width
    7120 mm 23.33 ft
Engine
  • Gross Power - SAE J1995:2014
    2100 hp 1566 kW
  • Engine Model
    Cat® 3516E
  • Net Power - SAE J1349:2011
    1975 hp 1473 kW
  • Rated Speed
    1650 r/min 1650 r/min
  • Emissions Rating
    Fuel Optimized
  • Bore
    6.7 in 170 mm
  • Stroke
    8.5 in 215 mm
  • Displacement
    4766 in³ 7.8 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)
    Optional 1417 kW / 1,900 HP engine rating.
  • Note (3)
    U.S. EPA Tier 4 Final / EU Stage V optional engine available for applicable markets.
Final Drives
  • Planetary Ratio
    10.83:1
  • Total Reduction Ratio
    25.46:1
  • Type
    Double reduction, planetary with full floating axles
  • Differential Ratio
    2.35:1
Service Refill Capacities
  • Fuel Tank - Standard
    550 gal (US) 2500 l
  • Fuel Tank
    1000 gal (US) 4546 l
  • Fuel Tank (Tier 4)
    55 gal (US) 2500 l
  • Diesel Exhaust Fluid Tank
    62 gal (US) 233 l
  • Cooling System
    180 gal (US) 679 l
  • Crankcase
    77 gal (US) 291 l
  • Front Wheels - Each
    5.8 gal (US) 22 l
  • Differentials
    161 gal (US) 610 l
  • Steering System
    42 gal (US) 160 l
  • Steering System - Includes Tank
    46 gal (US) 175 l
  • Brake Hoist System
    169 gal (US) 640 l
  • Brake Hoist System - Includes Tank
    347 gal (US) 1315 l
  • Torque Converter - Transmission System - Including Sump
    55 gal (US) 209 l
Sound
  • Sound Standards (1)
    Operator sound pressure level, 77 dB(A) with direct drive and 75 dB(A) with optional clutch, tested to ISO 6396:2008.
Steering
  • Steer Angle
    36.07 ° 36.07 °
  • Steering Standards
    ISO 5010:2019
Suspension
  • Type
    Self-contained nitrogen/oil cylinders, pin-to-pin mounting, top and bottom double shear clevis attachments
  • Effective Cylinder Stroke - Front
    4.12 in 104.65 mm
  • Effective Cylinder Stroke - Rear
    3.67 in 93.22 mm
  • Rear axle - Oscillation
    +/- 5 degrees
Tires
  • Standard Tires
    37 R57
  • Optional Tires
    40 R57
  • Optional Tire
    42/90 R57
  • Rims
    29” x 57” Rims
  • 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
    7.8 mile/h 12.6 km/h
  • Forward - 2
    10.6 mile/h 17.1 km/h
  • Forward - 3
    14.4 mile/h 23.1 km/h
  • Forward - 4
    19.4 mile/h 31.2 km/h
  • Forward - 5
    26.3 mile/h 42.3 km/h
  • Forward - 6
    35.5 mile/h 57.2 km/h
  • Reverse
    7.3 mile/h 11.8 km/h
  • Top Speed - Loaded
    35.5 mile/h 57.2 km/h
Weight Distributions - Approximate
  • Front Axle - Empty
    50%
  • Rear Axle - Loaded
    67%
  • Rear Axle - Empty
    50%
  • Front Axle - Loaded
    33%
Weights - Approximate
  • Nominal Rated Payload
    213 ton (US) 193 t
  • Rated Gross Machine Weight
    715000 lb 324318 kg
  • Body Weight
    60406 lb 27400 kg
  • Note (1)
    Consult your tire manufacturer for maximum tire load
  • Note (2)
    Chassis weight with full fuel and fluids, standard and mandatory attachments, hoist, body mounting group, rims, and tires.
Benefits

PRODUCTIVITY

  • The 789 delivers a faster speed on grade than competitive trucks thanks to the efficient 3516E 16-cylinder engine and mechanical drivetrain.
  • Expanded tire options allow mines to take advantage of higher speeds, particularly in flat, long-haul, high-speed applications.
  • The Advanced Power Electronic Control Strategy (APECS) enables faster cycle times and faster acceleration thanks to more continuous torque and rimpull.
  • The 789 has an empty machine weight advantage, allowing it to haul more with every load, delivering a cost per ton advantage over competitive trucks.
  • 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 wide-angle mirrors plus 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 make 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.

OPERATOR EFFICIENCY & PRODUCTIVITY

  • Higher resolution displays improve access to information. Machine data, controls and guidance information are consolidated onto two 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 service intervals; ground-level access to tanks, filters, drains and engine shutdown; easier access to daily service points as well as major components; a maintenance platform with access to the engine; and optional fast-fill service center.
  • A 100% airless electric start option eliminates air system maintenance from the machine and improves uptime.

DURABILITY AND LONG LIFE

  • The 789 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.
  • Resiliently mounted to the main frame to reduce vibration and sound, the integral ROPS is designed as an extension of the truck frame.
  • 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

  • Cat bodies are the best choice for the 789. 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 X Body incorporates the latest structural designs and offers more volume at a lower weight. It uses the Cat Mine Specific Design to create a body that is properly sized to meet the specific requirements of heavy-duty applications.

SUSTAINABILITY

  • The 789 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 3516E provides emission choices: fuel-optimized engine for less regulated countries or optional engine compliant to U.S. EPA Tier 4 Final / EU Stage V emissions standards.
  • The 789 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 Cat 3516E engine has proven its ability to deliver high power and reliability in the most demanding mining applications.
  • 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.
  • Application-specific capabilities are available for extreme ambient conditions and high-altitude applications.
  • The 789 lets you select the tire offering 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 789 is available in two options to meet the 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 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.
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

37R57 standard rims

OTHER EQUIPMENT

Auxiliary "buddy" dumping quick connect

Cat Technology Products

Cyber security
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