Dump Trucks HM300-5 | Komatsu Australia

SPECIFICATIONS

Engine

Model	Komatsu SAA6D125E-7
Type	Four-cycle, water-cooled, direct injection
Aspiration	Turbo-charged, after-cooled, cooled EGR
Number of cylinders	6
Bore x stroke	125 mm x 150 mm
Displacement	11.0 ltr
Horsepower, Gross - SAE J1995	248 kW / 332 HP
Horsepower, Net - ISO 9249 / SAE J1349	242 kW / 324 HP
Rated RPM	2000
Fan drive method	Hydraulic
Emissions certification	EPA Tier 4 Final

Axles

Final drive type Planetary gear
Ratios:
Differential 3.154
Planetary 4.667

Body

Capacity, struck	12.4 m3
Capacity, heaped (2:1 SAE)	17.1 m3
Payload	28000 kg
Target area (inside length x width)	5250 mm x 2685 mm
Heating	Exhaust heating (option)
Material	130 kg/mm2 high tensile strength steel
Material thickness:
Bottom	14 mm
Front	8 mm
Sides	12 mm

Brakes

Service brakes	Full-hydraulic control, oil-cooled multiple-disc type on front and centre axles
Standard	ISO3450
Parking brake	Spring applied, caliper disc type
Retarder	Front and centre axle brakes act as retarder

Cab

Standard ISO3449 (FOPS) ISO3471 (ROPS)
Hydraulic System

Hoist cylinder Twin, telescopic type
Relief pressure 30.4 MPa 310 kg/cm2
Hoist time 10.5 sec
Main Frame

Type Articulated, box-sectioned construction on front and rear Connected by strong torque tubes

Service Refill Capacities

Fuel tank	388 ltr
DEF tank	32.8 ltr
Engine oil	35 ltr
Torque converter, transmission and retarder cooling	80 ltr
Differentials (total)	71.5 ltr
Final drives (total)	23 ltr
Hydraulic system	103 ltr
Suspension (total)	10.4 ltr

Steering System

Type	Articulated type, fully hydraulic power steering with double-acting cylinders
Supplementary steering	Automatically actuated, electrically powered
Standard	ISO5010 SAE J1511
Minimum turning radius, wall to wall	8.10 m
Articulation angle	45° each direction

Suspension System

Front Hydro-pneumatic suspension
Rear Combined hydro-pneumatic and rubber suspension system

Transmission

Torque converter	3-elements, 1-stage, 2-phase
Transmission	Full-automatic, countershaft type
Speed range	6 speeds forward and 2 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 and direct drive in all gear
Shift control	Electronic shift control with automatic clutch modulation in all gear
Maximum travel speed	58.6 km/h

Tyres

Standard tyre 23.5 R25

Weight (Approximate)

Empty and Gross Weight:

Empty weight	25395 kg
Gross vehicle weight	53475 kg

Weight Distribution:

Empty:
Front axle	58.9%
Centre axle	22.5%
Rear axle	18.6%
Loaded:
Front axle	30.8%
Centre axle	36.0%
Rear axle	33.2%

HM300-5 Dump Trucks

Our 28 tonne capacity HM300-5, now with a new technology Komatsu engine and featuring our exclusive advanced truck transmission system, along with our hydraulic braking and retarder systems, ensure unrivalled traction, braking power and safety in all types of operation. 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.

Tier 4 Engine KDPF Regeneration

242 kW / 324 HP
ENGINE POWER
53,475 kg
OPERATING WEIGHT
28,000 kg
PAYLOAD CAPACITY

HM300-5 Dump Trucks

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Komatsu Traction Control System

Komatsu Traction Control System (KTCS) automatically engages the inter axle lock and the KTCS braking to provide optimal traction in soft ground conditions

Selectable Economy and Power Working Modes

Selectable working modes for Economy and Power allows machine performance to be optimised based on demand and operating conditions

Auto Idle Shutdown

In order to reduce unwanted idle time, Komatsu machines feature Komatsu Auto Idle Shutdown. This function will shut the engine off and apply the parking brake and hydraulic lock after a preset idle time limit