Page 28 - Contractors World - International Vol 3 No 7

more power [213 kW (286 HP)] at a lower (6%
less) RPM of 1800.
The overall reduction in fuel consumption
is due to a combination of features in the new
excavator design including lower engine speed;
improved cooling efficiency with the oil cooler
separated from the radiator; the new ECO
gauge providing fuel consumption guidance for
the operator and improved main control valves
reducing energy loss and increasing efficiency.
A new hydraulic system features a new
electro-hydraulic control that minimises
pressure loss through the main control valve. This utilizes engine power more effectively,
maximizes pump usage and delivers more comfort, smoother operation and accuracy.
Higher specifications
The operating weight of the DX380LC-3 excavator has been increased by 3.5 % to 39.2 tonne and the counterweight has
been increased by 300 kg to 7,400 kg. A new travel device increases drawbar pull by 15% to 36.9 tonne and produces a
15%
increase in swing torque.
Overall, the hydraulic system of the new generation excavator should provide improved performance and productivity,
The heavy duty undercarriage is the same as that used in the larger >40 tonne class DX420LC model with reinforced
track links, track springs and sprockets as well as a more robust boom and arm with reinforced bushings. These heavier
duty components will obviously reduce wear and lower costs.
The engine bonnet on the excavator is in
four parts to improve serviceability and ease of
opening. In common with current expectations,
filters, valves and batteries are within easy reach
for service work.
With this latest addition, there is an expanded
choice of options, including a new narrow (3 m)
undercarriage and a new two-mode floating boom
system.
Increased operator comfort
A new ROPS and OPG certified cab is more
spacious space for the operator.
A new 7-inch colour console offers an clear,
easy-to-read display and functionality. All functions
can be controlled both from the instrument panel
as well as via the new jog/shuttle control next
to the joystick - a feature currently exclusive to
Doosan excavators.
As a standard feature, the operator has access
to a new attachment select and setting function,
with multiple recordable preset values.
An upgraded cab suspension system helps to
cut vibration by 20% and reduces the noise in the
cab to as low as 71 dB(A).
Click here for more information >>>
Buckets:
1.25 – 1.83
Operating weight:
39.2 – 40.2
t
Digging depth (std front):
7535
mm
Digging reach (std front):
11170
mm
Digging height (std front):
10320
mm
Track width (std):
600
mm
Overall width:
3350
mm / 3000 mm (narrow)
Height (std front):
3148
mm
Tail swing radius:
3500
mm
Drawbar pull:
36.9
t
Digging force over bucket (ISO):
26.3
t
Digging force over arm (ISO):
23.3
t
Lifting capacity at ground level
16.34
t at 6.0 m
Travel speed:
low range – 3.05 km/h
high range – 5.5 km/h
Engine (SAE J1995, net):
6-
cylinder Doosan DL08K
Stage IIIB (EGR),
Power
213
kW (286 hp) at 1800 rpm
Specifications are for guidance only and subject to change
according to configuration.
Page 28
Contractors World - International Vol 3 No 7