- Overall Length: 27.75 ft / 8465 mm
- Overall Width: 12 ft / 3660 mm
- Overall Height: 12.64 ft / 3850 mm
- Wheelbase: 12.33 ft / 3750 mm
Published dimensions and weight
Komatsu HD405-7
The Komatsu HD405-7 is a 75.1 t-class rock truck with a 518 hp engine.
01Published dimensions and weight
Dimensions reference
Representative category illustration; exact model may differ.Measurement reference — not to scale
01Dimensions referenceLength × width × height
02WeightNot publishedNot published
03Selected published values73
Rigid rock trucks are commonly used to haul rock and bulk material on mines, quarries and large earthmoving sites. Published rows for Komatsu HD405-7 include published payload of 5.241.0 metric tons 40 U.S. tons, published maximum speed of 43.5 mph / 70 km/h, the published “Overall Length” field of 27.75 ft / 8465 mm. These values describe the published configuration; verify the specific machine's configuration, attachments and records.
- Compare the published “Overall Length” field (27.75 ft / 8465 mm) with the specific machine's configuration and records; options and condition can differ.
- Compare the published “Overall Width” field (12 ft / 3660 mm) with the specific machine's configuration and records; options and condition can differ.
- Compare the published “Overall Height” field (12.64 ft / 3850 mm) with the specific machine's configuration and records; options and condition can differ.
02Specifications
Published values, clearly grouped.
Published specifications and measurements are organized by section for quick reference.
Dimensions
Overall Length27.75 ft8465 mm
Overall Width12 ft3660 mm
Overall Height12.64 ft3850 mm
Wheelbase12.33 ft3750 mm
Turning Radius @ Centre Front Tyre23.63 ft7200 mm
Electrical System
Alternator4V, 50 Ah4V, 50 Ah
Batteries2 x 12V, 170 Ah2 x 12V, 170 Ah
Starter Motor11kW11kW
Electric Circuit Breaker24 Volt24 Volt
Body
Capacity Struck26.2 yd320.1 m3
Heaped (2:1, Sae)35.7 yd327.3 m3
Payload5.241.0 metric tons 40 U.S. tons5.241.0 metric tons 40 U.S. tons
Material150 kg/mm2 227520 psi high-tensile-strength steel150 kg/mm2 227520 psi high-tensile-strength steel
Material Thickness-Bottom1 in24.9 mm
Material Thickness-Front0.7 in16.1 mm
Material Thickness-Sides0.6 in14 mm
Target Area5590 mm x 3380 mm 18'4" x 11'1"5590 mm x 3380 mm 18'4" x 11'1"
HeatingExhaust heatingExhaust heating
StructureV-shape bodyV-shape body
Dumping Angle48 degrees48 degrees
Height At Full Dump26 ft7924.8 mm
Engine
Lubrication SystemMethod- Gear pump, force-lubrication, Filter-Full-flow typeMethod- Gear pump, force-lubrication, Filter-Full-flow type
Number Of Cylinders66
Engine Make22382238
Engine ModelSAA6D140E-5SAA6D140E-5
Engine TypeWater-cooled, 4-cycleWater-cooled, 4-cycle
Air CleanerDry type with double elements and precleaner, plus dust indicatorDry type with double elements and precleaner, plus dust indicator
GovernorElectronically controlledElectronically controlled
Power Measured @2000 rpm2000 rpm
Max Torque1598.3 lb ft2167 Nm
Displacement930 cu in15.3 L
AspirationTurbo-charged,air-to-air after-cooled,cooled EGRTurbo-charged,air-to-air after-cooled,cooled EGR
Bore And Stroke140 mm x 165 mm 5.5" x 6.5"140 mm x 165 mm 5.5" x 6.5"
Horse Power: Sae J1995518 hp386.3 kw
Horse Power: Iso 9249 / Sae J1349498 hp371.4 kw
Fan Drive TypeMechanicalMechanical
Fuel SystemDirect injectionDirect injection
Capacities
Fuel Tank127.9 gal484.2 L
Final Drive7.9 gal30 L
Hydraulic System34.1 gal129.1 L
Engine Oil13.2 gal50 L
Torque Converter, Transmission And Retarder Cooling23.8 gal90.1 L
Differentials11.9 gal45.1 L
Suspension11.7 gal44.3 L
Power Train
Power Train TypeTransmission, full automatic, electric control with clutch modulation. - Differential, standard.Transmission, full automatic, electric control with clutch modulation. - Differential, standard.
Transmission
Max Speed43.5 mph70 km/h
Torque Converter3-elements, 1-stage, 2-phase3-elements, 1-stage, 2-phase
TransmissionFull-automatic, planetary typeFull-automatic, planetary type
Speed Range7 speeds forward and 1 reverse7 speeds forward and 1 reverse
Lockup ClutchWet, single-disc clutchWet, single-disc clutch
ForwardTorque converter drive in 1st gear, direct drive in 1st lockup and all higher gearsTorque converter drive in 1st gear, direct drive in 1st lockup and all higher gears
ReverseTorque converter driveTorque converter drive
Shift ControlElectronic shift control with automatic clutch modulation in all gearElectronic shift control with automatic clutch modulation in all gear
Weights
Gross Weight165520 lb75078.7 kg
Empty Weight75840 lb34400.5 kg
Loaded Weight164200 lb74479.9 kg
Weight Distribution Front - Empty50.7 %50.7 %
Weight Distribution Rear - Empty49.3 %49.3 %
Weight Distribution Front - Loaded32.8 %32.8 %
Weight Distribution Rear - Loaded67.2 %67.2 %
Tires
Standard Tire18.00 R3318.00 R33
Axles
Final DrivePlanetary gearPlanetary gear
Differential3.1253.125
Planetary4.7374.737
RearFull-floatingFull-floating
Hydraulic System
Hoist CylinderTwin, 2-stage telescopic typeTwin, 2-stage telescopic type
Relief Pressure20.6 MPa 210 kg/cm2 2,990 psi20.6 MPa 210 kg/cm2 2,990 psi
Hoist Time10 sec10 sec
Brakes
Parking BrakeSpring applied, caliper disc typeSpring applied, caliper disc type
Service BrakeFront- Fully hydraulic control, caliper disc type; Rear- Fully hydraulic, oil-cooled, multiple-disc typeFront- Fully hydraulic control, caliper disc type; Rear- Fully hydraulic, oil-cooled, multiple-disc type
RetarderOil-cooled, multiple-disc rear brakes act as retarderOil-cooled, multiple-disc rear brakes act as retarder
Secondary BrakeManual pedal operation. When hydraulic pressure drops below the rated level, parking brake is automatically actuatedManual pedal operation. When hydraulic pressure drops below the rated level, parking brake is automatically actuated
Brake SurfaceFront- 968 cm2 150 in2 ; Rear - 50847 cm2 7,881 in2Front- 968 cm2 150 in2 ; Rear - 50847 cm2 7,881 in2
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Manufacturer-published specifications.