- Overall Length: 37.89 ft / 11548 mm
- Overall Width: 21.79 ft / 6640 mm
- Overall Height: 16.81 ft / 5122 mm
- Wheelbase: 17 ft / 5180 mm
Published dimensions and weight
Caterpillar 785D
The Caterpillar 785D is a 249.5 t-class rock truck with a 1348 hp engine.
01Published dimensions and weight
Dimensions reference
Representative category illustration; exact model may differ.Measurement reference — not to scale
01Dimensions referenceLength × width × height
02WeightNot publishedNot published
03Selected published values96
Rigid rock trucks are commonly used to haul rock and bulk material on mines, quarries and large earthmoving sites. Published rows for Caterpillar 785D include published payload of 300000 lb / 136077.72 kg, published engine power of 1450 hp / 1081.3 kw, published maximum speed of 34 mph / 54.8 km/h. These values describe the published configuration; verify the specific machine's configuration, attachments and records.
- Compare the published “Overall Length” field (37.89 ft / 11548 mm) with the specific machine's configuration and records; options and condition can differ.
- Compare the published “Overall Width” field (21.79 ft / 6640 mm) with the specific machine's configuration and records; options and condition can differ.
- Compare the published “Overall Height” field (16.81 ft / 5122 mm) with the specific machine's configuration and records; options and condition can differ.
02Specifications
Published values, clearly grouped.
Published specifications and measurements are organized by section for quick reference.
Dimensions
Overall Length37.89 ft11548 mm
Overall Width21.79 ft6640 mm
Overall Height16.81 ft5122 mm
Wheelbase17 ft5180 mm
Ground Clearance3.24 ft987 mm
Dump Height38.75 ft11809 mm
Dump Ground Clearance3.94 ft1200 mm
Dump
Lower Time15.9 sec15.9 sec
Load Capacity - Heaped102 yd377.99 m3
Rated Payload300000 lb136077.72 kg
Raise Time15.2 sec15.2 sec
Engine
Engine Make22362236
Engine Model3512C HD3512C HD
Net Power1348 hp1005.3 kw
Gross Power1450 hp1081.3 kw
Power Measured @1750 rpm1750 rpm
Displacement3573.6 cu in58.6 L
Torque Rise23 %23 %
Bore6.7 in170.2 mm
Stroke8.4 in213.4 mm
Rated Power1450 hp1081.3 kw
Net Power - Cat1348 hp1005.3 kw
Net Power - Iso 92491348 hp1005.3 kw
Net Power - Sae J13491348 hp1005.3 kw
Net Power - 80/1269/Eec1348 hp1005.3 kw
Gross Power - Sae J19951450 hp1081.3 kw
Operational
Fuel Capacity500.1 gal1893 L
Cooling System Fluid Capacity100.2 gal379 L
Engine Oil Capacity53.9 gal204 L
Diff And Final Drive Fluid Capacity115.2 gal436 L
Steering System Fluid Capacity31 gal117 L
Brake/Hoist System Fluid Capacity169.4 gal641 L
Hydraulic System Fluid Capacity89.1 gal337 L
Tire Size33.00-51 50PR (E3 & E4)33.00-51 50PR (E3 & E4)
Transmission
Number Of Gears - Forward66
Number Of Gears - Reverse11
Max Speed34 mph54.8 km/h
Reverse6.8 mile/h6.8 mile/h
Forward - 17.5 mph12.1 km/h
Forward - 210.2 mph16.5 km/h
Forward - 313.8 mph22.3 km/h
Forward - 418.6 mph30 km/h
Forward - 525.2 mph40.6 km/h
Forward - 634 mph54.8 km/h
Steering
Steering StandardsSAE J1511 OCT90 ISO 5010:1992SAE J1511 OCT90 ISO 5010:1992
Weights
Empty Weight259257 lb117597 kg
Loaded Weight550000.4 lb249476 kg
Weight Distribution Front - Empty46 %46 %
Weight Distribution Rear - Empty55 %55 %
Weight Distribution Front - Loaded33 %33 %
Weight Distribution Rear - Loaded67 %67 %
Tires
Standard Tires33.00-R51 (E3 & E4)33.00-R51 (E3 & E4)
Brakes
Brake Surface - Front9497 in26.2 m2
Brake Surface - Rear13908 in29 m2
StandardsSAE J1473 OCT90 ISO 3450-1985SAE J1473 OCT90 ISO 3450-1985
Body Hoists
Pump Flow - High Idle198 gal/min198 gal/min
Relief Valve Setting - Raise2500 psi2500 psi
Body Raise Time - High Idle15.2 s15.2 s
Body Lower Time - Float16.2 s16.2 s
Body Power Down - High Idle15.9 s15.9 s
Body Lower Time - High Idle15.9 s15.9 s
Final Drives
Planetary Ratio10.83:110.83:1
Differential Ratio2.10:12.10:1
Total Reduction Ratio22.75:122.75:1
Operating Specifications
Top Speed - Loaded34 mph54.8 km/h
Steer Angle36 degrees36 degrees
Turning Diameter - Front97.7 ft29.8 m
Machine Clearance Turning Diameter108.9 ft33.2 m
Minimum Target Payload288000 lb130634.5 kg
Maximum Target Payload314000 lb142427.9 kg
Target Payload - Dual Slope*292000 lb132448.9 kg
Service Refill Capacities
Cooling System100 gal378.6 L
Differential - Final Drives115 gal435.4 L
Steering Tank24 gal90.9 L
Steering System - Including Tank31 gal117.4 L
Brake Hoist System - Includes Tank169 gal639.8 L
Crankcase54 gal204.5 L
Brake/Hoist Hydraulic Tank89 gal337 L
Torque Converter/Transmission System - Including Sump65.6 gal248 L
Fuel Tank - Standard500 gal1892.8 L
Weight Distributions - Approximate
Front Axle - Loaded - Target33 %33 %
Rear Axle - Loaded - Target67 %67 %
Front Axle - Empty*45-46%45-46%
Rear Axle - Empty*54-55%54-55%
Weights - Approximate
Body Weight Range20 831 - 30 623 kg 45,924 - 67,512 lb20 831 - 30 623 kg 45,924 - 67,512 lb
Gross Machine Operating Weight (Gmw)550000 lb249475.9 kg
Minimum/Maximum Operating Chassis Weight Range (Ocw)83 304 - 84 668 kg 183,654 - 186,661 lb83 304 - 84 668 kg 183,654 - 186,661 lb
Minimum/Maximum Operating Chassis Weight Range Empty (Eomw)106 218 - 117 597 kg 234,170 - 259,257 lb106 218 - 117 597 kg 234,170 - 259,257 lb
Rops
Rops StandardsSAE J1040 APR88 ISO 3471:1994SAE J1040 APR88 ISO 3471:1994
Sound
Sound StandardsANSI/SAE J1166 MAY90 SAE J88 APR95ANSI/SAE J1166 MAY90 SAE J88 APR95
Suspension
Effective Cylinder Stroke - Front12.1 in307.4 mm
Effective Cylinder Stroke - Rear6.5 in165.1 mm
Body - Dual Slope
Body Weight49150 lb22294.1 kg
Heaped (Sae 2:1)102 yd378 m3
Body - X
Body Weight55468 lb25159.9 kg
Heaped (Sae 2:1)111 yd384.9 m3
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