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)