Komatsu 980E-4

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Dimensions

Overall Length45.61 ft in (13900 mm)
Overall Height26.25 ft in (8000 mm)
Wheelbase2.19 ft in (665 mm)
Turning Radius42.33 ft in (12900 mm)
Width Over Tires-Front26.19 ft in (7980 mm)
Width Over Tires-Rear29.79 ft in (9080 mm)

Electric Drive

Ratio35.02:1
AlternatorGTA -39
ControlAC Torque Control System
Motorised WheelsGDY108-C Induction Traction Motors
Maximum Speed (Km/H)61
Dual Fan Main Blower340 m3/min 12,000 cfm

Electrical System

Alternator24 volt, 250 amp
Lighting24 volt
Cranking MotorsTwo/24 volt

Suspension System

Front303 mm 11.92"
Rear239 mm 9.40"

Body

Capacity Struck240.7 yd3 (184 m3)
Heaped (2:1, Sae)327 yd3 (250 m3)
Payload814407.4 lb (369409 kg)
StructureFlat floor configuration
Weight92001.2 lb (41731 kg)
Canopy Sheet06mm 0.24" 690 Mpa 1,00,000 psi tensile strength steel
Front Sheet10 mm 0.39" Outer, 12mm 0.47" Center, 1379 mPa 200,000 psi tensile strength steel
Side Sheet10 mm 0.39" 1379 Mpa 2,00,000 psi tensile strength steel
Floor Sheet16 mm 0.63" Outer, 19mm 0.75" Center, 1379 mPa 200,000 psi tensile strength steel
Loading Height23.5 ft in (7.2 m)

Engine

Number Of Cylinders18
Engine Make2238
Engine ModelSSDA18V170
Power Measured @1900 rpm
Displacement4759.9 cu in (78 L)
Fuel TypeDiesel
Horse Power: Sae J19953500.1 hp (2610 kw)
Horse Power: Iso 9249 / Sae J13493345.9 hp (2495 kw)
Operating Cycle4-cycle
Weight (Wet)25904.4 lb (11750 kg)
Weight (Dry)24802.1 lb (11250 kg)

Driveline

Service Brake TypeOil-cooled, hydraulic-actuated, multiple disc brakes at each wheel.
Parking Brake Type​Multiple disc, spring-applied, hydraulically-released, dry brakes on inboard end of each wheel motor rotor shaft. Rated to hold on ±15% grade at maximum gross vehicle weight.
Emergency BrakesOil-cooled, multiple disc front & rearAutomatically applied prior to hydraulic system pressure dropping below level required to meet secondary stopping requirements.
​Wheel Brake LocksSwitch-activated​
​Electric Dynamic Retarder (Max.)Continuous at 4476 kW 6,000 hp
Max. Service Apply Pressure (Kpa)2750 psi (18960 kPa)
Total Friction Area Per Brake (Cm2)103729

Capacities

Fuel Tank1400.2 gal (5300 L)
Cooling System190 gal (719 L)
Hydraulic System350.1 gal (1325 L)
Crankcase90.1 gal (341 L)
Motor Gear Box25.1 gal (95 L)

Weights

Gross Weight1378499.8 lb (625277 kg)
Empty Weight564092.4 lb (255868 kg)
Weight Distribution Front - Empty48 %
Weight Distribution Rear - Empty52 %
Weight Distribution Front - Loaded33 %
Weight Distribution Rear - Loaded67 %

Tires

Standard Tire59/80 R63

Hydraulic System

Hoist Cylinder​Two 2-stage dual-acting outbound cylinders and internal cushion valve, over-centre damping
Relief PressureHoist and brake cooling- 17237 kPa 2,500 psi Steering and brake-20685 kPa 3,000 psi
Hoist TimePower-up loaded: 21 sec; Power-down: 16 sec; Float-down empty:17 sec
Turning Circle Diameter (Sae)105 ft in (32.1 m)
Reservoir250 gal (946.4 L)
FiltrationIn-line replaceable elements
SuctionSingle, full flow, 100 mesh
Hoist And SteeringDual, in-line, high pressure
PumpsTwo pumps, single package, end of alternator

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