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Current number of specifications

 
Komatsu HD785-7 Rock Truck

Selected Dimensions

Dimensions
A. Overall Length36.1 ft in11015 mm
C. Overall Height16.6 ft in5050 mm
D. Wheelbase16.2 ft in4950 mm

Specification

Body
Capacity Struck40 yd330.6 m3
Heaped (2:1, SAE)60 yd345.9 m3
Payload91.7 metric tons
Material400 Brinell hardness high tensile strength steel
Material thickness-Bottom0.75 in19 mm
Material thickness-Front0.47 in12 mm
Material thickness-Sides0.35 in9 mm
Target area7070 mm x 5150 mm
HeatingHeating by exhaust gas
StructureV-shape body with V-bottom
Dumping angle48 degrees
Height at full dump33.1 ft in10080 mm
Engine
Lubrication SystemMethod- Gear pump, force-lubrication ; Filter-Full-flow type
Number of Cylinders12
Make2238
ModelSAA12V140E-3
TypeWater-cooled, 4-cycle
Air cleanerDry type with double elements and precleaners, with dust indicator
GovernorElectronic control
Power Measured @1900 rpm
Displacement1860 cu in30.5 L
AspirationTurbo-charged, after-cooled
Max Torque5080N. m 518 kg. m
Bore and Stroke140 mm x 165 mm
Horse Power: SAE J19951200 hp894.8 kw
Horse Power: ISO 9249 / SAE J13491178 hp878.4 kw
Fan drive typeMechanical
Fuel systemDirect injection
Capacities
Fuel Tank1308 gal4951.3 L
Final Drive128 gal484.5 L
Hydraulic system175 gal662.4 L
Engine Oil129 gal488.3 L
Torque converter, transmission and retarder cooling205 gal776 L
Differentials137 gal518.6 L
Suspension93 gal352 L
Break control36 gal136.3 L
Transmission
Max Speed40.4 mph65 km/h
Torque converter3-elements, 1-stage, 2-phase
TransmissionFull-automatic, planetary type
Speed range7 speeds forward and 2 reverse
Lockup clutchWet, multiple-disc clutch
ForwardTorque converter drive in 1st gear, direct drive in 1st lockup and all higher gears
ReverseTorque converter drivee, direct drive (lockup)
Shift controlElectronic shift control with automatic clutch modulation in all gears
Weights
Gross Weight361073.1 lb163780 kg
Empty Weight158732.8 lb72000 kg
Weight Distribution Front - empty47 %
Weight Distribution Rear - empty53 %
Weight Distribution Front - loaded31.4 %
Weight Distribution Rear - loaded68.6 %
Tires
Standard tire27.00 R49
Hydraulic System
Hoist cylinderTwin, 2-stage telescopic type
Relief pressure20.6 MPa 210 kg/cm2
Hoist timeRaise-13 s; Lower-14 s
Axles
Final DrivePlanetary gear
Differential3.4
Planetary6.3
RearFull-floating
Brakes
Service brakeFront- Fully hydraulic control, oil-cooled multiple-disc type; Rear- Fully hydraulic control, oil-cooled multiple-disc type
Parking brakeSpring applied, multiple-disc type(actuates on all wheels)
RetarderOil-cooled, multiple-disc front and rear brakes act as retarder.
Secondary brakePedal operation When hydraulic pressure drops below the rated level, parking brake is automatically actuated
Brake surfaceFront- 37467 cm2 ; Rear-37467 cm2
Dimensions
Turning Radius33.1 ft in10100 mm
Width Over Tires17.1 ft in5200 mm
Overall Length36.1 ft in11015 mm
Overall Height16.6 ft in5050 mm
Wheelbase16.2 ft in4950 mm