New CAT Equipment

789 Mining Truck

Caterpillar's exclusive design ownership provides advantages by creating a total hauling unit that delivers the best integration of high production, availability, and payload in combination with low operating cost and long life. The new Cat® 789 continues the tradition of Caterpillar's proven 789 Truck with high productivity and lowest in class cost per ton.

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    Product Specs

    Engine

    Gross Power - SAE J1995 2100 HP
    Engine Model Cat® 3516E
    Net Power - SAE J1349 1975 HP
    Rated Speed 1650 r/min
    Emissions Rating U.S. Tier 4 / EU Stage V
    Bore 6.7 in
    Stroke 8.5 in
    Displacement 4766 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.

    Weights - Approximate

    Nominal Rated Payload 211 ton (US)
    Rated Gross Machine Weight 715001 lb
    Chassis Weight 234627 lb
    Body Weight 59827 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.

    Weight Distributions - Approximate

    Front Axle - Empty 50 %
    Rear Axle - Empty 50 %
    Front Axle - Loaded 33 %
    Rear Axle - Loaded 67 %

    Final Drives

    Type Double reduction, planetary with full floating axles.
    Differential Ratio 2.35:1
    Planetary Ratio 10.83:1
    Total Reduction Ratio 25.46:1

    Transmission

    Forward - 1 7.8 mile/h
    Forward - 2 10.6 mile/h
    Forward - 3 14.4 mile/h
    Forward - 4 19.4 mile/h
    Forward - 5 26.3 mile/h
    Forward - 6 35.5 mile/h
    Reverse 7.3 mile/h
    Top Speed - Loaded 35.5 mile/h

    Tires

    Standard Tires 37.00-R51
    Optional Tires 40.00-R51
    Rims 29" x 57"
    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 12662 in²
    Rear - Wet Disc Brake Surface Area 20861 in²
    Standards Service and Secondary: ISO 3450:2011
    Parking Brake Four-corner, Multi-disc, Spring Applied, Hydraulically Released

    Capacity - Dual Slope - 100% Fill Factor

    Struck 101 yd³
    Heaped (SAE 2:1) 141 yd³

    Body Hoists

    Type Twin, two-stage hydraulic cylinders with snubbing valve.
    Pump Flow - High Idle 106.5 gal/min
    Relief Valve Setting - Raise 2749 psi
    Body Raise Time - High Idle 14 s
    Body Lower Time - Float 16 s

    Suspension

    Type Self-contained nitrogen/oil cylinders, pin-to-pin mounting, top & bottom double shear clevis attachments
    Effective Cylinder Stroke - Front 4.12 in
    Effective Cylinder Stroke - Rear 3.67 in
    Rear axle - Oscillation ±5°

    Service Refill Capacities

    Fuel Tank - Standard 544 gal (US)
    Diesel Exhaust Fluid Tank 62 gal (US)
    Cooling System 180 gal (US)
    Crankcase 77 gal (US)
    Final Drive - Each 5.8 gal (US)
    Differential - Final Drives 161 gal (US)
    Steering Tank 42 gal (US)
    Steering System - Includes Tank 46 gal (US)
    Brake/Hoist Tank 169 gal (US)
    Brake Hoist System 347 gal (US)
    Brake Hoist System - Includes Tank 55 gal (US)

    Cab

    Air Conditioning HFC - 134A refrigerant: 31733 Btu/h
    Heater / Defroster 36510 Btu/h
    Note The operator sound pressure level, 76 dB(A), complies with ISO 6394:2008 and ISO 6396:2008.
    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 for Operator and ISO 13459:2012 Level II for Trainer.

    Steering

    Steering Angle 36.07 °
    Turning Diameter - Front 90.3 ft
    Steering Standards ISO 5010:2007

    Dimensions (Approximate)

    Height - Top of ROPS 18.25 ft
    Overall Body Length 42 ft
    Inside Body Length 27.33 ft
    Overall Length 41.5 ft
    Wheel Base 18.67 ft
    Rear Axle - Tail 11.75 ft
    Ground Clearance 4.25 ft
    Dump Clearance 4.75 ft
    Loading Height - Empty 18.58 ft
    Rear Sidewall Height 3.17 ft
    Inside Body Depth - Maximum 9.33 ft
    Overall Height - Body Raised 44.08 ft
    Operating Width 25.67 ft
    Centerline Front Tire Width 17.75 ft
    Engine Guard Clearance 4.25 ft
    Overall Canopy Width 25.08 ft
    Outside Body Width 22.5 ft
    Inside Body Width 21.33 ft
    Front Canopy Height 21.42 ft
    Rear Axle - Clearance 4.17 ft
    Centerline of Rear Dual Tire Width 15.42 ft
    Overall Tire Width 23.33 ft