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KOMATSU HD785-7 mining truck

Permalink : http://product.cmsou.com/detail_NDg58---.html    Last Updated : 2014-06-17
KOMATSU HD785-7 mining truck

KOMATSU HD785-7 mining truck

  • Feature
  • Parameter
Productivity and Economy Features • High performance Komatsu SAA12V140E-3 engine Net horsepower 879 kW 1,178 HP • Mode selection system with Variable HorsePower Control (VHPC) • Two-speed selective reverse gears, RH and RL • Anti-pitching 4-wheel oil-cooled multiple-disc retarder (AP-FOUR) Retarder absorbing capacity 1092 kW 1,464 HP (continuous descent) • Automatic Retard Speed Control (ARSC) standard Harmony with Environment • Komatsu SAA12V140E-3 engine meets EPA Tier 4 interim emissions regulations • Lead-free radiator • Low operation noise • Low fuel consumption Reliability Features • Flat face-to-face O-ring seals • Sealed DT connectors Operator Environment and Control • Spacious cab with excellent visibility • Ergonomically-designed cab • Easy-to-see instrument panel • Synchronous control of engine and transmission • Advanced K-ATOMiCS with “Skip-shift” function • Viscous cab mounts • Electric body dump control • Built-in ROPS/FOPS, Level 2 cab • Parking brakes on 4-wheels • Supplementary steering • Pedal-operated secondary brake • Three-mode automatic hydropneumatic suspension (optional) Easy Maintenance • Oil-cooled multiple-disc brakes and fully hydraulic-controlled braking system • Extended oil change interval • Disc wheels (flange type rims) • Electric circuit breakers • KOMTRAX Plus
Engine
ModelKomatsu SAA12V140E-3
TypeWater-cooled, 4-cycle
AspirationTurbo-charged, after-cooled
Number of cylinders12
Bore x Stroke5.51" x 6.50"140 mm x 165 mm
Piston displacement1,860 in³30.48 ltr
Horsepower
SAE J1995Gross 1,200 HPGross 895 kW
ISO 9249 / SAE J1349Net 1,178 HPNet 879 kW
Rated rpm1,900 rpm
Fan drive type.Mechanical
Maximum torque3,747 lb ft518 kg•m
Fuel systemDirect injection
GovernorElectronic control
Lubrication system
MethodGear pump, force-lubrication
FilterFull-flow type
Air cleanerDry type with double elements and pre-cleaned, with dust indicator
Transmission
Torque converter3-elements, 1-stage, 2-phase
TransmissionFull-automatic, planetary-shaft type
Speed range7 speeds forward and 2 reverse (RH, RL)
Lockup clutch.Wet, multiple-disc clutch
ForwardTorque converter drive in 1st gear, direct drive in 1st lockup and all higher gears
ReverseTorque converter drive, direct drive (lockup)
Shift controlElectronic shift control with automatic clutch modulation in all gear
Maximum travel speed40.4 mph65 km/h
Axles
Rear axlesFull-floating
Final drive typePlanetary gear
Ratios:
Differential3.357
Planetary6.333
Suspension System
Effective cylinder stroke:
Front suspension12.6"320 mm
Rear suspension5.0"127 mm
Rear axle oscillation6.5°
Steering System
TypeFully hydraulic power steering with two double-acting cylinders
Supplementary steeringElectro-hydraulic motor
Minimum turning radius33'2" 10.1 m
Maximum steering angle41°
Cab
TypeBox-sectioned structure Integral front bumper
Main Frame
TypeBox-sectioned structure Integral front bumper
Brakes
Service brakes:
FrontFully hydraulic control, oil-cooled multiple-disc type
RearFully 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 brakeManual pedal operation. When hydraulic pressure drops below the rated level, parking brake is automatically actuated.
Brake surface
Front5,807 in²37467 cm²
Rear11,224 in²72414 cm²
Body
Capacity
Struck52.3 yd³40 m³
Heaped (2:1, SAE)78.5 yd³60 m³
Payload100.3 U.S. tons91.0 metric tons
Material400 Brinell hardness high tensile strength steel
StructureV-shape body with V-bottom
Material thickness:
Bottom0.75"19 mm
Front0.47"12 mm
Sides0.35"9 mm
Target area (inside length x width)23'2"x 17'1"7065 mm x 5200 mm
Dumping angle48°
Height at full dump33'1"10080 mm
HeatingExhaust heating
Hydraulic System
Hoist cylinderTwin, 2-stage telescopic type
Relief pressure 2,990 psi20.6 MPa / 210 kg/cm²
Hoist time
Raise13 sec
Lower14 sec
Weight (approximate)
Empty weight158,800 lb72000 kg
Max. gross vehicle weight366,000 lb166000 kg
Not to exceed max. gross vehicle weight, including options, fuel and payload.
Weight distribution (Empty):
Front axle47%
Rear axle53%
Weight distribution (Loaded):
Front axle31.5%
Rear axle68.5%
Tires
Standard tire27.00 R49
Service Refill Capacities
Fuel tank345.6 U.S. Gal1308 ltr.
Engine oil34.1 U.S. Gal129 ltr.
Torque converter, transmission and retarder cooling54.2 U.S. Gal205 ltr.
Differentials36.2 U.S. Gal137 ltr.
Final drives (total)33.8 U.S. Gal128 ltr.
Hydraulic system46.2 U.S. Gal175 ltr.
Brake control9.5 U.S. Gal36 ltr.
Suspension (total)24.6 U.S. Gal93 ltr.
Engine coolant74.8 U.S. Gal283 ltr
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