Australian Earthmoving – June 2018

AUSTRALIANEARTHMOVING.COM.AU 110

WHAT'S HOT

NEW KOMATSU 50

TONNE EXCAVATOR

OFFERS HIGHER PRODUCTION, LOWER FUEL BURN

Komatsu has released a new 50 tonne class excavator,
the PC490LC-11, featuring a Tier 4 Final-compliant low
emission engine, and delivering increased production
and lower fuel consumption.

Designed for heavy construction, quarrying and
demolition applications, the PC490LC-11 has an
operating weight of 48.7 tonnes and is powered by a
Komatsu SAA6D125E-7 engine rated at 270 kW.
According to Amber Rickard, Komatsu’s National
Business Manager – Construction, the PC490LC-11
replaces the 46.1 tonne PC450LC-8, which it
significantly outperforms in key operating criteria.
“These include a larger maximum bucket size of 2.7
cu m, a 15% increase in lift capacity, and up to 13%
greater production and 15% better fuel efficiency
with its enhanced power mode,” she said.
The new PC490LC-11 incorporates a number of major
improvements and new features compared with its
predecessor.

These include:

• Enhancements to the hydraulic system,
  including efficiency improvements to reduce
  hydraulic loss, larger displacement pumps, increased

hydraulic flow in power mode and a hydraulically

driven variable speed reversible cooling fan.

• Increased durability, with reinforced swing
  circle, reinforced revolving frame and a larger
  reinforced undercarriage with robust components for
  improved reliability.


• Improved operator comfort, through a large
  capacity high-back electric air suspension seat, fully
  adjustable updated armrests, proportional control
  joysticks, and high-capacity air conditioning.


• Upgraded ICT (Information Communications
  Technology) through an improved high-resolution
  monitor panel in the cab, providing detailed
  operational and machine status information to the
  operator, service personnel and fleet managers.


• Enhanced serviceability, through centralised
  service points, rear-opening engine cover, factory
  standard handrails and single-pole battery isolation,


• The latest KOMTRAX system which remotely
  monitors critical machine operating criteria –
  including key Tier 4 engine components and operating
  parameters – for early prediction of potential issues,
  and rapid troubleshooting and diagnosis.

“Our new PC490LC-11 represents a complete redesign

over the PC450LC-8,” said Rickard.