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Dump Truck | ADT | HM400E-2

Supplier: Komatsu

Komatsu articulated dump trucks are the most rugged on the market, having been designed to bring rigid frame strength and reliability to the ADT sector. The Ejector body unit also offers very low maintenance to ensure lower owning and operating costs.



  • Proven design & technology from RDT's
  • Environmental compliance
    • Tier 3 with cooled EGR
    • Efficient production achieved through K-ATOMiCS transmissionSmooth changing between gears
    • Transmission shift hold button
    • Fast maximum speed
    • Excellent traction achieved by
    • Full time 6 wheel drive with LSD's
    • Interaxle can be engaged during the cycle (no slowing down)
    • Wide tyre gauge and long wheel base
    • Good lateral stability
    • Better load distribution
  • Reduced vibration and noise from
    • Front hydro-pneumatic suspension with trailing arm
    • Rear hydro-pneumatic suspension with rubber
  • All wheel braking, wet disc, maintenance free service brakes
  • Increased safety provided by
    • Large retarding force through front & centre axles
    • Dual door cab
    • Excellent visibility plan and control layout
  •  Reduce maintenance costs
    • Strong chassis (same as HM400)
    • Maintenance free hitch
    • Centralised greasing and tiltable cab for easy access
  • High specification steel body
    • Reduced body working parts for ejection system
    • Uncomplicated tailgate system



Horsepower, - Gross SAE J1995 (kW): 338
Horsepower, Net - ISO 9249 (kW): 327
Horsepower, Net - SAE J1349 (kW): 327
Rated RPM: 2000
Fan drive method: Mechanical
Displacement (litre): 15.24
Number of cylinders: 6
Related information: Komatsu water-cooled, turbocharged, after-cooled, cooled Exhaust Gas Recirculation (EGR), Tier III compliant, common rail direct injection diesel engine. Leading retarder absorbing capacity (continuous descent) - 389kW. ?


Gross operating weight (kg): 69040
Empty weight (kg): 36000
Weight distribution, empty - F/R (%): 55 / 45
Weight distribution, loaded - F/R (%): 28 72

Operation / Application

Payload (kg): 36.5
Body capacity, struck (m3): 16.5
Body capacity, heaped SAE 2:1 (m3): 21.5
Body type - Shape / Ejector: Standard
Standard thickness - floor / front / sides (mm):
Loading height (mm): 3187
Full dump height (mm): N/A
Dump angle (degrees): N/A
Heated body, standard - N/A
Related information: High strength, easy to load body constructed from thick wear resistant steel. Mechanical tailgate incorporating minimal working parts to reduce maintenance.


Transmission type: Auto PS
Number of speeds, Fwd / Rev: 6/2
Maximum speed, Fwd / Rev (km/h): 58.5
Differential type: 100% lock up type
Brake type: Hydraulic with retarder
Suspension system: F: Hydro-pneumatic, R: Combined hydro-pneumatic and rubber
Related information: K-ATOMiCS (Komatsu Advanced Transmission with Optimum Modulation Control System) ensures a smooth ride over the harshest terrain. Additional drive line features include full hydraulic, oil cooled multiple disc type brakes on all wheels.


Standard fitment size: 29.5 R25

Hydraulic System

Hoist cylinder type: N/A
Hoist time (seconds): N/A


Length, overall (mm): 11040
Width over tyres (mm): 3450
Tyre guage (mm): 2960
Height to top of cab (mm): 3720
Ground clearance (mm): 605
Turning radius - outside minimum (mm): 8700

Service information

Fuel tank (litre): 493

Communication systems

Internal maintenance monitoring: Yes
KOMTRAX Satellite tracking: Yes