EquipmentWorld.com | May 2015
19
Komatsu America's D155AXi-8, the fi rst intelligent machine
control crawler dozer in its size class, is designed to handle a
range of highway construction, large residential or commercial
site prep projects. The dozer features a 354-horsepower Kom-
atsu SAA6D140E-7 Tier 4 Final 15.24-liter diesel engine that
enables the machine to emit 80 percent less NOx than the Tier 4
unit the D155AXi-8 replaces.
The machine's intelligent control has the ability to sense and
control blade load, which Komatsu says delivered up to an 8
percent effi ciency boost in moving material compared to after-
market machine control systems during a grading test. Having
no blade-mounted sensors eliminates the need to climb on the
blade to install or remove GNSS antennas, or deal with snagged
cables. For maximum effi ciency, Komatsu has included an
automatic gearshift transmission
and lock up torque converter that
enables the operator to select the
best gear range depending upon
both the jobsite conditions and
the load. By transferring engine
power directly to the transmission,
horsepower loss is eliminated, and
fuel consumption is reduced by up
to 10 percent.
The addition of Komatsu's Sig-
madozer blade, which is designed
to roll up soil at the center of the
blade, ensures reduced digging re-
sistance. According to the company,
the blade dozes up to 15 percent
more soil compared to semi-u
blades, while using less power.
EDITOR'S
PICK
EDITOR'S
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marketplace
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by Amy Materson
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AMaterson@randallreilly.com
INTELLIGENT CRAWLER DOZER
