HD405-8 Dump Trucks

SPECIFICATIONS

Engine

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

Ratios:

Differential 3.125

Planetary 5.211

Body

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

Brakes

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

Cab

Standard ISO3471, SAEJ1040-1988c (ROPS)
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°

Transmission

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

Tyres

Standard tyre 21.00 R33
Weight (Approximate)

Empty and Gross Weight:

Empty weight 37335 kg

Gross vehicle weight 77415 kg

Weight Distribution:

Empty:

Front axle 54.2%

Rear axle 45.8%

Loaded:

Front axle 32.9%

Rear axle 67.1%

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.

Tier 4 Engine KDPF Regeneration

383 kW / 514 HP
ENGINE POWER
77,415 kg
OPERATING WEIGHT
40,000 kg
PAYLOAD CAPACITY