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Current number of specifications

Komatsu HM400-3M0 Articulated Dump Truck

Selected Dimensions

A. Overall Length36.4 ft in11105 mm
B. Overall Width11.3 ft in3450 mm
C. Overall Height12.3 ft in3735 mm
E. Ground Clearance2.3 ft in710 mm


Steering System
TypeArticulated type, fully hydraulic power steering with two double acting cylinders
Supplementary steeringAutomatically actuated electrically powered
Minimum turning radius, wall to wal8.80 m
Articulation angle45°each direction
StandardISO5010, SAE J1511
Electrical System
Alternator24V, 75 Ah.
Batteries12V, 136 Ah x 2.
Starter motor24V, 11.0 kW.
Suspension System
RearCombined hydro-pneumatic and rubber suspension system
FrontHydro-pneumatic suspension
Main Frame
TypeArticulated type, box-sectioned construction on front and rear Connected by strong torque tubes.
Capacity Struck23.8 yd318.2 m3
Heaped (2:1, SAE)31.4 yd324 m3
Payload40.0 metric tons
Material130 kg/mm2 high tensile strength steel
Material thickness-Bottom0.55 in14 mm
Material thickness-Front0.32 in8 mm
Material thickness-Sides0.47 in12 mm
Target area5667 mm x 3194 mm
HeatingExhaust heating (option)
Number of Cylinders6
ModelKomatsu SAA6D140E-5
TypeWater-cooled, 4-cycle
Gross Power453 hp337.8 kw
LubricationMethod- Gear pump, force-lubrication Filter-Full-flow type
Air cleanerDry type with double elements and precleaner, plus dust indicator *Net horsepower at the maximum speed of radiator cooling fan is 307 kW 411 HP. EPA Tier 3 and EU Stage 3A emissions certified
GovernorElectronically controlled
Net Power448 hp334.1 kw
Power Measured @2000 rpm
Displacement930 cu in15.2 L
AspirationTurbo-charged, after-cooled, cooled EGR
Bore5.5 in140 mm
Stroke6.5 in165 mm
Fan drive typeHydraulic
Fuel systemDirect injection
Maximum torqueGross 2089 N•m 213 kg•m
Fuel Tank136.8 gal518 L
Final Drive8.5 gal32 L
Hydraulic system44.1 gal167 L
Engine Oil13.2 gal50 L
Torque converter, transmission and retarder cooling33 gal125 L
Differentials28.5 gal108 L
Suspension5.4 gal20.4 L
Travel Speed34.8 mph56 km/h
Torque converter3-elements, 1-stage, 2-phase
TransmissionFull-automatic, counter-shaft type
Speed range6 speeds forward and 2 reverse
Lockup clutchWet, single-disk clutch
ForwardTorque converter drive in 1st gear, direct drive in 1st lockup and all higher gears
ReverseTorque converter drive and direct drive in all gear
Shift controlElectronic shift control with automatic clutch modulation in all gear
Gross Weight163417.6 lb74125 kg
Empty Weight75056.4 lb34045 kg
Center Axle - empty23.1 %
Front Axle - empty56.9 %
Rear Axle - empty20 %
Front Axle - loaded29.4 %
Center Axle - loaded35.4 %
Rear Axle - loaded35.2 %
Standard tire29.5 R25
Hydraulic System
Hoist cylinderTwin, telescopic type
Relief pressure28.4 MPa 290 kg/cm2 Hoist time
Hoist time12 sec
ComplianceComply with ISO 3471 ROPS (Roll-Over Protective Structure) standard, and ISO 3449 FOPS (Falling Objects Protective Structure : Level II)Standard
Service brakeFull Hydraulic control, oil cooled , multiple disc type on front and centre axles
Parking brakeSpring applied, caliper disc type
RetarderFront and center axle brakes act as retarder
Overall Length36.4 ft in11105 mm
Overall Width11.3 ft in3450 mm
Overall Height12.3 ft in3735 mm
Ground Clearance2.3 ft in710 mm
Tyre gauge9.7 ft in2960 mm
Turning radius – outside minimum28.9 ft in8800 mm