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W
ith the launch of the new DX380LC-7 40 t
model, Doosan has completed the company’s
30 - 40 t family of Stage V excavators.
Together with the new Stage V DX300LC-7
30 t and DX350LC-7 36 t models, the DX380LC-7 offers a
combination of high-performance operating features, fuel
efficiency, reliability, and durability in this class. The new
Stage V excavators build on the successful design of the
previous Stage IV machines. They introduce enhancements
in operator comfort, machine controllability, productivity,
uptime, and return on investment, with a strong focus on low
fuel consumption, increased power, robustness, and versatility.
With these new 30 - 40 t machines, Doosan has aimed
to ensure that productivity and environmental protection
are truly compatible. The DX380LC-7 is powered by the
Scania DC09 Stage V compliant diesel engine, providing
240 kW of power at 1800 rpm. There are now four power
modes available on all three machines, which help to simplify
the operation of the new excavators compared to the more
complex choice of eight power modes and SPC combinations
in the previous generation’s machines. The operator is able to
set the power mode (P+, P, S or E) in both one-way and two-
way working modes.
In common with the DX350LC-7 crawler excavator, the
DX380LC-7 features Doosan’s D-ECOPOWER technology,
designed to provide operators
with higher productivity and
lower fuel consumption per
hour, as well as smoother controls.
The D-ECOPOWER technology
focuses on the role of the hydraulics
system, and demonstrates Doosan’s
continuous iteration of all the processes
and components utilised in the company’s
new generation products to achieve
increased levels of diesel energy efficiency.
Doosan’s D-ECOPOWER technology utilises
an electronic pressure-controlled pump within
a closed centre hydraulic system, to accomplish
increases of up to 26% in productivity and up to 12%
in fuel consumption improvements, depending on the
mode selected. A closed centred main control valve
minimises pressure loss, while the electric pressure-
controlled pump manages and optimises engine power
more effectively.
The D-ECOPOWER system uses nine sensors to detect
the amount of hydraulic oil necessary to accomplish a specific
task and precisely meter the amount of oil required, rather
than continuously forcing a fixed amount of oil through the
system, thereby improving efficiency. Software is utilised to
electronically reproduce the full benefits of an open centre
hydraulic system with minimal energy loss. The hydraulic
system and engine horsepower are fully optimised and
synchronised, further reducing losses within the system. The
new cab in the DX380LC-7 model is designed to optimise
operator comfort and ease of operation. Like the other
two Stage V models, the cab has a new high-quality
seat and can offer more features as standard than
other machines on the market, designed to ensure
high levels of controllability and precision in all
applications. As standard, 360˚ cameras provide
full visibility around the excavator and allow
the operator to see a top-down view of the
area outside the machine. The camera array
comprises a front camera, two side cameras
and a rear camera. The camera display is
separated from the gauge panel.
The new DX380LC-7 model is
factory-installed with Doosan’s state-
of-the-art DoosanCONNECT wireless
fleet monitoring system. The
DoosanCONNECT system offers
a web-based fleet management
solution, which can be used for
monitoring the performance
and security of machines and
promoting preventative
maintenance.
DOOSAN,
CZECH REPUBLIC
The DX380LC-7 completes Doosan’s 30 - 40 t Stage V
excavators.
The DX350LC-7 and DX380LC-7 both feature D-ECOPOWER
technology.
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