New CAT Equipment

785D Mining Truck

The 785D Mining Truck is engineered for performance, designed for comfort, and built to last. Developed specifically for high production mining and construction applications, the 785D Mining Truck keeps material moving at high volume to lower your cost-per-ton. Rugged construction creates a durable machine. Easy maintenance procedures ensure high reliability and  long life with low operating costs.

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    Product Specs

    Engine

    Gross Power - SAE J1995 1450 HP
    Net Power - SAE J1349 1348 HP
    Engine Model Cat® 3512C HD
    Bore 6.7 in
    Stroke 8.4 in
    Displacement 3573.6 in³

    Weights - Approximate

    Rated Gross Machine Weight 550000 lb
    Body Weight - MSD 46738 lb
    Chassis Weight 183270 lb
    Nominal Rated Payload 154 ton (US)

    Transmission

    Forward - 1 7.5 mile/h
    Forward - 2 10.2 mile/h
    Forward - 3 13.8 mile/h
    Forward - 4 18.6 mile/h
    Forward - 5 25.2 mile/h
    Forward - 6 34 mile/h
    Reverse 6.8 mile/h
    Top Speed - Loaded 34 mile/h

    Final Drives

    Differential Ratio 2.10:1
    Planetary Ratio 10.83:1
    Total Reduction Ratio 22.75:1

    Suspension

    Effective Cylinder Stroke - Front 12.1 in
    Effective Cylinder Stroke - Rear 6.5 in

    Brakes

    Brake Surface - Front 9497 in²
    Brake Surface - Rear 13908 in²
    Standards SAE J1473 OCT90 ISO 3450-1985

    Body Hoists

    Pump Flow - High Idle 198 gal/min
    Relief Valve Setting - Raise 2500 psi
    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

    Body - Dual Slope

    Body Weight 49150 lb
    Heaped (SAE 2:1) 102 yd³

    Body - X

    Body Weight 55468 lb
    Heaped (SAE 2:1) 111 yd³

    Steering

    Turning Diameter - Front 97.7 ft
    Steer Angle 36 °
    Steering Standards SAE J1511 OCT90 ISO 5010:1992

    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 *Depends on body configuration.
    Note Weight distributions optimized with Cat body.

    Service Refill Capacities

    Fuel Tank - Standard 500 gal (US)
    Cooling System 100 gal (US)
    Crankcase 54 gal (US)
    Differential - Final Drives 115 gal (US)
    Steering Tank 24 gal (US)
    Steering System - Including Tank 31 gal (US)
    Brake/Hoist Hydraulic Tank 89 gal (US)
    Brake Hoist System - Includes Tank 169 gal (US)
    Torque Converter/Transmission System - Including Sump 65.51 gal (US)

    ROPS

    ROPS Standards SAE J1040 APR88 ISO 3471:1994

    Sound

    Sound Standards ANSI/SAE J1166 MAY90 SAE J88 APR95

    Tires

    Standard Tires 33.00-R51 (E3 & E4)