789 (04)

789 (04)

The Cat® 789 Mining Truck has a history of proven performance in a wide variety of applications. It delivers the lowest cost per ton in its size class, for an overall reduction in your operating costs, along with the reliability and reduced costs that come with long life — from the engine and powertrain to the components, brakes and frame. It also delivers fast speed on grade and a high production capability thanks to a payload advantage over competitive machines. The versatile 789 offers engine options to meet regulatory standards or application-specific needs such as extreme temperatures, high altitude or areas that require sound reductions. And it features safety enhancements like diagonal stairways, wide walkways and optional powered access to protect your most important asset: your people.

Nominal Rated Payload 194 t
Rated Gross Machine Weight 324319 kg
Gross Power - SAE J1995 1566 kW

Technicial Specifications

Weights - Approximate
Nominal Rated Payload 194 t
Rated Gross Machine Weight 324319 kg
Chassis Weight (37R57 Tires) 102821 kg
Chassis Weight (40R57 Tires) 106010 kg
Engine
Gross Power - SAE J1995 1566 kW
Engine Model Cat® 3516C HD
Rated Net Power - ISO 9249 1468 kW
Bore 170 mm
Stroke 215 mm
Displacement 78.1 l
Net Power 1468 kW
Gross Power 1566 kW
Emissions Rating Fuel Optimized or EPA Tier 2 equivalent
Rated Speed 1750 r/min
Cab
Heater / Defroster 10.1 kW
Air Conditioning 69 kW (23,543 Btu/hr)
ROPS Standards (1) ROPS for Operator meets ISO 3471:2008; for Trainer meets ISO 13459:2012
FOPS Standards FOPS for Operator meets ISO 3449:2005 Level II; for Trainer meets ISO 13459:2012 Level II
Note 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.
Dimensions
Height - Top of ROPS 5400 mm
Overall Length 12915 mm
Wheel Base 5700 mm
Rear Axle - Tail 3860 mm
Ground Clearance 1224 mm
Dump Clearance 1620 mm
Loading Height - Empty 6150 mm
Overall Height - Body Raised 13045 mm
Centerline Front Tire Width 5410 mm
Engine Guard Clearance 1210 mm
Overall Canopy Width 7770 mm
Outside Body Width 7770 mm
Inside Body Width 6705 mm
Front Canopy Height 6525 mm
Rear Axle - Clearance 1178 mm
Centerline of Rear Dual Tire Width 4625 mm
Overall Tire Width 6945 mm
Dimensions (Approximate)
Height - Top of ROPS 5400 mm
Overall Length 12650 mm
Wheel Base 5700 mm
Rear Axle - Tail 3590 mm
Ground Clearance 1224 mm
Dump Clearance 1740 mm
Loading Height - Empty 5470 mm
Overall Height - Body Raised 13335 mm
Centerline Front Tire Width 5410 mm
Engine Guard Clearance 1210 mm
Overall Canopy Width 7645 mm
Outside Body Width 7645 mm
Inside Body Width 6500 mm
Front Canopy Height 6700 mm
Rear Axle - Clearance 1178 mm
Centerline of Rear Dual Tire Width 4625 mm
Overall Tire Width 6945 mm
Dimensions (All dimensions are approximate. MSD II Body, 33R51 tires, unloaded machine.)
Height - Top of ROPS 5400 mm
Overall Length 13350 mm
Wheel Base 5700 mm
Rear Axle - Tail 3985 mm
Ground Clearance 1224 mm
Dump Clearance 1315 mm
Loading Height - Empty 5840 mm
Overall Height - Body Raised 13100 mm
Centerline Front Tire Width 5410 mm
Engine Guard Clearance 1210 mm
Overall Canopy Width 7780 mm
Outside Body Width 7800 mm
Front Canopy Height 6335 mm
Rear Axle - Clearance 1180 mm
Centerline of Rear Dual Tire Width 4625 mm
Overall Tire Width 6945 mm
Body - Dual Slope
Body Weight 27365 kg
Optional Engine
Engine Model Cat® 3516B EUI
Gross Power 1417 kW
Rated Net Power - ISO 9249 1320 kW
Bore 170 mm
Stroke 190 mm
Displacement 69 l
Operating Specifications
Standard MSD Body (SAE 2:1) 130 m³
Standard X Body (SAE 2:1) 123 m³
Standard Dual Slope Body (SAE 2:1) 108 m³
Standard Combi Body (SAE 2:1) 153 m³
Standard Gateless Coal Body (SAE 2:1) 191 m³
Note Refer to the Cat Mining Truck Optimized payload policy for maximum gross machine weight limitations.
Standard HP Body (SAE 2:1) 144 m³
Weight Distributions - Approximate
Front Axle - Empty 50 %
Rear Axle - Empty 50 %
Front Axle - Loaded 33 %
Rear Axle - Loaded 67 %
Note Weight distributions optimized with Cat body.
Steering
Steering Standards ISO 5010:2019
Steering Angle 36.07 °
Turning Diameter - Front Wheel 27.53 m
Vehicle Clearance - Turn Circle 30.23 m
Turning Diameter - ISO 7457:1997 (33.00R51 tires) 30.34 m
Service Refill Capacities
Fuel Tank - Standard 2082 l
Fuel Tank - Optional 3785 l
Cooling System 725 l
Crankcase 291 l
Differential - Final Drives 830 l
Steering System 189 l
Brake Hoist System 909 l
Brake/Hoist Hydraulic Tank 540 l
Steering Tank 134 l
Transmission Tank 76 l
Transmission
Forward - 1 12.6 km/h
Forward - 2 17.1 km/h
Forward - 3 23.1 km/h
Forward - 4 31.2 km/h
Forward - 5 42.3 km/h
Forward - 6 57.2 km/h
Reverse 11.8 km/h
Top Speed - Loaded 57.2 km/h
Final Drives
Differential Ratio 2.35:1
Planetary Ratio 10.83:1
Total Reduction Ratio 25.46:1
Suspension
Effective Cylinder Stroke - Front 105 mm
Effective Cylinder Stroke - Rear 93 mm
Rear axle - Oscillation ±5.4°
Brakes
Brake Surface - Front 81693 cm²
Brake Surface - Rear 134522 cm²
Standards ISO 3450:2011
Body Hoists
Pump Flow - High Idle 699 L/min
Relief Valve Setting - Raise 18950 kPa
Body Raise Time - High Idle 18.9 s
High Idle Body Lower Time - Float 15.6 s
Note (1) Refer to the Cat Mining Truck Optimized payload policy for maximum gross machine weight limitations.
High Idle Body Lower Time - Power 15.6 s
Body Raise Time - High Idle Body 17.3 s
Tires
Standard Tires 37.00-R57
Optional Tires 40.00-R57
Body - X
Body Weight 30107 kg
Sound
Sound Standards Operator sound pressure level 78.5 dB(a) tested to ISO 6394:2008 and ISO 6396:2008

Advantages and Features

PRODUCTIVITY

        
  • The 789 delivers a faster speed on grade than competitive trucks thanks to the efficient 3500 series 16-cylinder engine and mechanical drivetrain.
  •     
  • 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.
  •     
  • Expanded tire options allow mines to take advantage of higher speeds, particularly in flat, long-haul, high-speed applications.
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  • The 789 has an empty machine weight advantage, allowing it to haul more with every load, delivering a 10-15% cost per ton advantage over competitive trucks depending on application.

SAFETY

        
  • Access and egress are safer thanks to the 600-mm-wide (24-in-wide) stairway and walkways, 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.
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  • The 789 is designed for excellent all-around visibility and clear sight lines, enhanced by wide-angle mirrors, a relocated air tank and grease reservoir, and Electric Start batteries stored.
  •     
  • The optional 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, body retaining cable and reverse neutralizer when dumping.

OPERATOR COMFORT

  • Three cab options — standard, deluxe and cold weather — allow you to select the best features for your application.
  • All options offer an ergonomic layout, excellent all-around visibility, and controls, levers, switches and gauges that are positioned for ease of use.
  • The cab has numerous features that enhance comfort and reduce fatigue, such as an air suspension seat, reduced vibration, automatic climate control and sound suppression.

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 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.
  • Individual cylinder heads are interchangeable for easy removal and visual inspection of internal parts.
  • The VIMS onboard diagnostic systems continuously monitor all critical machine functions and components to help locate faults quickly for faster repair.

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.
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  • 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 specialty combination body for coal and coal overburden accommodates light density material while maintaining payload potential.

SUSTAINABILITY

        
  • We’ve designed the 789 with a number of enhancements that lessen its impact on the environment. Features like oil renewal systems and continuous rear axle filtration decrease the amount of waste contributed to the environment.
  •     
  • 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.

VERSATILITY

        
  • The 789 comes with two engine options to help you meet regulatory requirements or application-specific needs. Both the Cat 3516B and 3516C EUI options deliver high power and reliability in the world's 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.
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  • Application-specific capabilities are available for extreme ambient conditions, high-altitude and extra quiet applications.
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  • The 789D lets you select the tire offering that best matches your application, with a larger tire for flat, long, high-speed applications. Applicable hauling conditions will benefit from increased tire life or significant reduction in tire costs.

TECHNOLOGY SOLUTIONS

        
  • MineStar Fleet is a fleet monitoring system that can be used to measure, manage and maximize the overall hauling operation.
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  • With MineStar Detect, you can equip your 789 with cameras to give your operators a better view of what's happening around their equipment—or combine cameras and radar into a system that automatically alerts operators to hazards.
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  • The MineStar Detect in-cab Driver Safety System intervenes when it detects fatigue or distraction
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  • Machine health and condition monitoring solutions enable a proactive approach to maintenance.
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  • MineStar Command for hauling, an autonomous hauling solution proven to increase productivity up to 30%, is offered as a retrofit kit for the 789.

Standard Equipment

  • POWERTRAIN
    • Engine, 1566 kW (2,100 hp) 3516C, HD, EUI
    • Diesel engine/turbocharged/aftercooled
    • Ground level engine shutdown
    • Ether starting aid (automatic)
    • Aftercooler
    • Elevated low idle control
    • Automatic starter protection
    • Multi-point oil pressure sensing
    • Muffler
    • Fan, conventional drive
    • Electric start
  • BRAKING SYSTEM
    • Brake release motor (towing)
    • Oil-cooled, multi-disc (front and rear)/(service, resistive braking, parking, secondary)
    • Automatic resistor control
    • Engine overspeed protection
    • Extended life brake disc material
  • TRANSMISSION
    • Controlled throttle shifting
    • Individual clutch modulation
    • Body-up shift inhibitor
    • Downshift/reverse shift inhibitor
    • Oil level sensor
    • Neutral start switch/coast inhibitor
    • Body-up reverse neutralizer
    • Programmable top gear
    • Lock-up torque converter
    • Rear axle continuous lubrication/filtration
  • ELECTRICAL
    • Back up alarm
    • Alternator 105 ampere
    • Batteries, 12V (2), 93 amp-hour
    • Converter, 12V electrical
    • Electrical system, 24V, 15 amp
    • LED Lighting system:
      – Backup and hazard lights
      – Directional signals, front and rear
      – Engine compartment lights
      – External payload lights
      – Headlights and fog lights
      – Lo-hi beam selector
      – Ladder light and service deck lights
      – Left-hand ladder/Service deck -Stop/taillights VIMS, blue light
    • Payload indicator lights
  • INFORMATION MANAGEMENT
    • Wiring standard (less road analysis control)
  • OPERATOR ENVIRONMENT
    • Air conditioner
    • Auxiliary power connection/cigarette lighter
    • Diagnostic connection port
    • Dome courtesy light
    • Entertainment radio ready:
      – 5-amp converter, speakers, antenna, and wiring
    • Air cleaner service indicator
    • Gauge panel: Air pressure, Brake oil temperature, Engine coolant temperature, Fuel level
    • Electric hour meter
    • Electric engine control fault indicator
    • Mirrors, right and left
    • Speedometer and tachometer
    • Supplemental steering (automatic)
    • Traction control system
    • Transmission gear indicator
    • Vital Info Management System (VIMS)
  • OBJECT DETECTION SYSTEM
    • Radar and camera
  • CAT TECHNOLOGY PRODUCTS
    • Product Link™ cellular
  • SAFETY AND SECURITY
    • Ground level VIMS data port
    • Ground level battery disconnect
    • Working at heights handrail
  • FUEL SYSTEMS
    • Fast fill fuel system
    • 2082 L (550 gal) capacity fuel tank and fast fill system
    • Fuel filter basic screen
  • FLUIDS
    • Antifreeze protection to –35° C (–30° F)
  • ACCESS
    • Fixed ladder
  • FRAMES
    • Mirror heated
    • Driveline guard
  • SERVICE
    • Service center
    • Quick connect fitting for engine oil
  • BODIES ACCESSORIES
    • Rock ejectors
    • Auxiliary "buddy" dumping quick connect

Optional Equipment

  • POWERTRAIN
    • Engine, 1417 kW (1,900 hp) 3516B, EUI
    • Engine, 1566 kW (2,100 hp) 3516C, HD, EUI, US EPA Tier 2 equivalent
    • Pre-lube
    • Filtration for oil cooler
    • Oil renewal system
    • Muffler, extended exhaust
    • Exhaust system to heat body
    • Exhaust deflector
    • Fan, variable speed, rockford for use in freezing weather operations
    • Air start
  • ELECTRICAL
    • Lock out transmission at ground level
    • Lighting auxiliary at catwalk and passenger platform
    • Lighting at body rear for signals and stop/taillights
    • Payload digital display
  • INFORMATION MANAGEMENT
    • Wiring with road analysis control
  • OBJECT DETECTION SYSTEM
    • Camera only (radar ready)
    • Omission, camera and radar
  • CAT TECHNOLOGY PRODUCTS
    • Product Link satellite
  • SAFETY AND SECURITY
    • Working at heights package
    • Working at heights service
    • Fire extinguisher, portable
  • FUEL SYSTEMS
    • 3785 L (1,000 gal) capacity fuel tank and fast fill system
    • Fuel filter with separator
    • Fuel filter with separator and heater
  • FLUIDS
    • Antifreeze protection to –50° C (–58° F)
  • RIMS AND WHEELS
    • 37R57
    • 37R57 quick change
    • 40R57
    • 40R57 quick change
    • Rim diffuser
    • Hub odometer
    • Wheel chocks
    • Brake wear indicator
  • MUD GUARDS
    • Mud guards for standard hydraulic and fuel tanks
    • Mud guards for standard hydraulic and large fuel tank
  • ACCESS
    • Powered staircase
  • FRAMES
    • Mirror wide and heated
    • Lift assist struts for front and rear hoods
  • COLD WEATHER
    • Starting, cold weather
    • Brake oil recirculating
  • SERVICE
    • Service center
    • Quick connect fitting for engine oil
  • BODIES ACCESSORIES
    • Side extensions
    • Tail wraparound
    • Liner for base only
    • Liner for entire body
    • Rock guard for dual slope bodies