July 2015 | EquipmentWorld.com
40
machine matters
|
by Richard Ries
While excavators in the 20- to 25-metric ton class
continue to lead sales, those in the 35- to 50-ton
class are seeing a bump in volume.
EXCAVATOR SIZES
TREND UPWARD
Doosan
Doosan added a
mass airflow sensor and
exhaust brake to its exist-
ing diesel technologies
to help meet Tier 4 Final
emissions standards on its
DX490LC-5. In conjunction
with a variable geometry
turbocharger these features
also provide better fuel
efficiency, higher torque
levels, and faster engine
response even at low rpm.
