Home Rock Truck Komatsu Komatsu HD785-7 Rock Truck

Komatsu HD785-7 Rock Truck

147

Specifications

Dimensions information

Full lenght machine

36.14ft in

Full height of vehicle:

16.57ft in

Wheelbase length (Distance between the foremost and rearmost wheels)

16.25ft in

Turning Radius of a vehicle:

33.14ft in

Width Over Tires

17.07ft in

Specifications

Body

Capacity Struck

40yd3

Heaped (2:1, Sae)

60yd3

Payload

91.7 metric tons

Material

400 Brinell hardness high tensile strength steel

Material Thickness-Bottom

0.8in

Material Thickness-Front

0.5in

Material Thickness-Sides

0.4in

Target Area

7070 mm x 5150 mm

Heating

Heating by exhaust gas

Structure

V-shape body with V-bottom

Dumping Angle

48degrees

Height At Full Dump

33.1ft in

Engine specifications

Lubrication System

Method- Gear pump, force-lubrication ; Filter-Full-flow type

How many cylinders does an engine have?

12

Brand

2238

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Model

SAA12V140E-3

Engine Type

Water-cooled, 4-cycle

Air Cleaner

Dry type with double elements and precleaners, with dust indicator

Governor

Electronic control

Revolutions Per Minute

1900rpm

Torque N-m

5080N. m 518 kg. m

Engine construction

Turbo-charged, after-cooled

Engine displacement

1860.1cu in

Bore And Stroke

140 mm x 165 mm

Horse Power: Sae J1995

1200hp

Horse Power: Iso 9249 / Sae J1349

1178hp

Fan Drive Type

Mechanical

Fuel System

Direct injection

Capacities

Fuel Tank

1308gal

Final Drive

128gal

Hydraulic System

175gal

Engine Oil

129gal

Torque Converter, Transmission And Retarder Cooling

205gal

Differentials

137gal

Suspension

93gal

Break Control

36gal

Transmission specifications

Top Speed:

40.4mph

Torque Converter

3-elements, 1-stage, 2-phase

Transmission

Full-automatic, planetary type

Speed Range

7 speeds forward and 2 reverse

Lockup Clutch

Wet, multiple-disc clutch

Forward

Torque converter drive in 1st gear, direct drive in 1st lockup and all higher gears

Reverse

Torque converter drivee, direct drive (lockup)

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Shift Control

Electronic shift control with automatic clutch modulation in all gears

Weights

Gross Weight

361073.1lb

Empty Weight

158732.9lb

Weight Distribution Front – Empty

47%

Weight Distribution Rear – Empty

53%

Weight Distribution Front – Loaded

31.4%

Weight Distribution Rear – Loaded

68.6%

Tires

Standard Tire

27.00 R49

Axles

Final Drive

Planetary gear

Differential

3.357

Planetary

6.333

Rear

Full-floating

Hydraulic System specifications

Hoist Cylinder

Twin, 2-stage telescopic type

Relief Pressure

20.6 MPa 210 kg/cm2

Hoist Time

Raise-13 s; Lower-14 s

Brakes

Parking Brake

Spring applied, multiple-disc type(actuates on all wheels)

Service Brake

Front- Fully hydraulic control, oil-cooled multiple-disc type; Rear- Fully hydraulic control, oil-cooled multiple-disc type

Retarder

Oil-cooled, multiple-disc front and rear brakes act as retarder.

Secondary Brake

Pedal operation When hydraulic pressure drops below the rated level, parking brake is automatically actuated

Brake Surface

Front- 37467 cm2 ; Rear-37467 cm2