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Komatsu Australia

has announced the release of the

980E-4 electric-drive haul truck – its largest-ever – with

a payload capacity of 363 tonnes (400 US tons).

Power for the 980E-4 comes from a Komatsu

SSDA18V170 Tier 2 engine, rated at 2611 kW which in

combination with its GE Mining dual IGBT electric drive

system provides a top speed of 60 km/h.

According to Scott Harrington, Komatsu Australia’s

National Product Manager, Mining, this engine provides

one of the lowest brake-specific fuel consumption (BSFC)

in this truck class.

Applications for this truck include iron ore, coal and

other resources requiring bulk material movement when

matched to large loading tools, to deliver the lowest

possible cost-per-tonne.

As with other trucks in Komatsu’s ultra class electric

drive haul trucks range, the 980E-4 was designed, de-

veloped and manufactured by Komatsu America Corp

at its Peoria operation in Illinois for customers around

the world.

Harrington said:

“Komatsu was the first to introduce AC drive

systems for ultra-class mining trucks in 1996,

and has ever since continued to demonstrate to

our customers in Australia and globally the

incomparable performance and reliability that

Komatsu trucks provide,”

“The 980E-4 is based on the proven high

quality Komatsu design that will deliver excep-

tional productivity and outstanding availability

over the whole life of the asset, to provide our

customers with the lowest cost per tonnage

haulage option.”

A number of major components on the 980E-4 are

common to Komatsu’s successful and well proven 960E-2

truck. These include the engine, radiator, alternator,

retarder and cab.

Other key components have been developed specif-

ically for the new 980E-4, engineered to meet the de-

mands of its 363 tonne rated payload.

These major component changes include larger wheel

motors and hydraulic components.

The new GDY108C wheel motors, based on GE

Mining’s proven GDY108B design, are longer to accom-

modate the 980E-4’s 44 inch rims and incorporate a

number of gearing and bearing design changes.

Hoist cylinders, steering cylinders and suspension

cylinders have all increased in capacity, ensuring that

with these trucks can maintain a known rated hydraulic

system pressure and Komatsu component design life

targets.

Brief specs of the 980E-4 are: Payload, 363 tonnes

(400 US tons); fully loaded weigth, 625 tonnes (689 US

tons); body capacity, by design; engine, Komatsu

SSDA18V170 QSK78 rated at 2611 kW; maximum loaded

speed, 60km/h; braking system, 4476 kW electric dy-

namic retarder plus wet disc brakes front and rear; tyre

size, 59/80R63(standard); overall height, 8 m.

Komatsu Australia

Komatsu’s largest-ever

haul truck

Contractors World International Vol 7 No 5

43

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