40t Dump Truck

Now with a new technology Komatsu engine, our 40-tonne capacity HD405-8 truck is ideal for quarry, construction and small-scale mining operations.


Rigid Dump Trucks For Hire
Equipment Class


Now with a new technology Komatsu engine, our 40 tonne capacity HD405-8 truck is ideal for quarry, construction and small-scale mining operations. Advanced transmission and braking systems ensure optimum traction and the industry’s highest safety standards. As with all our trucks, key components are designed and manufactured by Komatsu to work together in an integrated package. And it comes standard with our KOMTRAX remote monitoring and location system, backed by our Australia-wide service and support network. 


Model Komatsu SAA6D140E-7
Type Four-cycle, water-cooled, direct injection
Aspiration Turbo-charged, after-cooled, cooled EGR
Number of cylinders 6
Bore x stroke 140 mm x 165 mm
Displacement 15.24 ltr
Horsepower, Gross - SAE J1995 386 kW / 518 HP
Horsepower, Net - ISO 9249 / SAE J1349 383 kW / 514 HP
Rated RPM 2000
Fan drive method Hydraulic
Emissions certification EPA Tier 4 Final
  • Axles

    Rear axle Full-floating
    Final drive type Planetary gear
    Differential 3.125
    Planetary 5.211


    Standard ISO3450, SAE1473
    Service brake - front Full-hydraulic control, caliper disc type
    Service brake - rear Full-hydraulic control, oil-cooled multiple-disc type
    Parking brake Spring applied, multiple disc type
    Retarder Oil cooled, multiple-disc rear brakes act as retarder
    Secondary brake Manual pedal operation. When hydraulic pressure drops below rated level, parking brake automatically actuated
    Brake surface:  
    Front 968 cm2
    Rear 50847 cm2


    Hydraulic System

    Hoist cylinder Twin, two-stage telescopic type
    Relief pressure

    20.6 MPa

    210 kg/cm2

    Hoist time 10 sec

    Main Frame

    Type Box-sectioned structure

    Service Refill Capacities

    Fuel tank 456 ltr
    DEF tank 34.7 ltr
    Engine oil 50 ltr
    Torque converter, transmission and retarder cooling 112 ltr
    Differentials 45 ltr
    Final drives (total) 30 ltr
    Hydraulic system 120 ltr
    Suspension (total) 44.2 ltr

    Steering System

    Type Fully hydraulic power steering with two double-acting cylinders
    Supplementary steering Automatic/manual controlled (meets ISO5010, SAEJ1511 and SAEJ53)
    Minimum turning radius, wall to wall 7.9 m
    Maximum steering angle 38°

    Suspension System

    Independent , hydro-pneumatic suspension cylinder with fixed throttle to dampen vibration

    Effective cylinder stroke (front suspension) 250 mm
    Rear axle oscillation:  
    Oil stopper 6.8°
    Mechanical stopper 8.1°


    Torque converter 3-elements, 1-stage, 2-phase
    Transmission Full-automatic, planetary type
    Speed range 7 speeds forward and 1 reverse
    Lockup clutch Wet, single-disc clutch
    Forward Torque converter drive in 1st gear, direct drive in 1st lockup and all higher gears
    Reverse Torque converter drive
    Shift control Electronic shift control with automatic clutch modulation in all gears
    Maximum travel speed 66 km/h

    Weight (Approximate)

    Empty and Gross Weight:

    Empty weight 37335 kg
    Gross vehicle weight 77415 kg



    Weight Distribution:

    Front axle 54.2%
    Rear axle 45.8%
    Front axle 32.9%
    Rear axle 67.1%


    Standard tyre 21.00 R33
    Standard ISO3471, SAEJ1040-1988c (ROPS)
    Capacity, struck 20 m3
    Capacity, heaped (2:1 SAE) 24 m3
    Payload 40000 kg
    Target area (inside length x width) 5640 mm x 3380 mm
    Heating Exhaust heating (option)
    Material 160 kg/mm2 high tensile strength steel
    Material thickness:
    Bottom 19 mm
    Front 16 mm
    Sides 14 mm

extraMile by Integranet