Hitachi 2010 Annual Report Download - page 25

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Hitachi฀Construction฀Machinery’s฀Ultra-
large฀Hydraulic฀Excavators฀and฀Large฀
Dump฀Trucks฀for฀Mining฀Operations
In addition to a powerful excavation ability, Hitachi
Construction Machinery’s ultra-large hydraulic excava-
tors are easy to operate and comfortable to ride in.
Furthermore, their outstanding durability has helped
significantly in reducing running costs.
Hitachi Construction Machinery’s large dump trucks
employ an AC drive system featuring an Hitachi-made
Insulated Gate Bipolar Transistor (IGBT) inverter system
that is based on the inverter technology used in
Shinkansen (bullet) trains. This enables reduced mainte-
nance costs and realizes smooth and speedy gear
changes as well as powerful electric braking.
Hitachi฀Construction฀Machinery’s฀
Wheel Loaders
Hitachi Construction Machinery’s wheel
loaders boast powerful operation, outstand-
ing power performance and easy operability.
By fitting different attachments to suit the
nature of the work, the company’s wheel
loaders are used in work situations ranging
from civil engineering and livestock raising to
landscaping and agriculture.
Hitachi฀Construction฀Machinery’s฀
Hydraulic฀Excavators
Hitachi Construction Machinery’s well-known
hydraulic excavators are not only highly durable
and reliable, but are also energy efficient and easy
to operate thanks to the combination of electronic
control with the hydraulic system. Hitachi
Construction Machinery supplies a range of
products to suit frontline customer needs, from
mini excavators to ultra-large ones.
23
Hitachi, Ltd. Annual Report 2010