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CAPITAL EQUIPMENT NEWS
MARCH 2017
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mechanically bolted pins are composed
of sealed, self-lubricating links, which
are isolated from external contamination
for dependability in all conditions. The
hydraulic track adjuster has a shock
absorbing tension mechanism.
The DX225LCA series has standard
hydraulic piping for hammer applications
and an improved H Class bucket. The
machine is supported by Doosan’s 2 year/
4 000 hour warranty.
More features
The swing mechanism – an axial piston
motor with a two stage planetary reduction
gear – offers increased swing torque at
reduced swing times. The maximum swing
speed is 11 rpm.
The 21,5 t operating weight is enhanced
by new specifications that include a
0,92 m³ bucket capacity, a digging depth of
5 755 mm, a digging reach of 8 950 mm
and a digging height of 9 750 mm. The
engine rated power is 110 kW (148 hp)
at 1 900 rpm. Maximum engine torque is
61,5 kg.m/1 400 rpm.
For optimum control, the e-POS system
(Electronic Power Optimising System) pro-
vides a perfect synchronised communica-
tion link between the engine’s electronic
control unit and the hydraulic system. A
controller area network system facilitates
a constant flow of information between
the engine and hydraulic system, ensuring
power is delivered exactly as it is needed.
Tests show that these machines have
the industry’s best traction force for their
machine weight, especially when working
on a slope or on tough ground conditions.
The hydraulic system enables indepen-
dent or combined operations. Two travel
speeds offer either increased torque or
high speed tracking, while an auto decel-
eration system and cross sensing pump
ensure better fuel savings.
The conveniently positioned multi-func-
tion colour LCD monitor panel has stan-
dard features for simple control and effi-
cient operation.
The controls include mode selection,
precise flow rate regulation, auto deceler-
ation and display selection. Maintenance
and oil change intervals can be displayed,
a self-diagnosis function allows technical
problems to be quickly resolved and an
operational memory provides a graphic
display of the machine’s status.
Levelling operations, movement of lifted
loads and tricky manoeuvres are all con-
trolled easily and precisely with control
levers. Buttons integrated on the levers
are used to operate additional equipment,
such as grabs, crushers and grippers.
Doosan’s DX225LCA excavator has
been designed with the latest ergonomics
which enhance efficient operation,
improve safety and offer greater operator
comfort for reduced fatigue. New
features include a spacious, all-weather
sound-suppressed cab with a clear all
round view, effective air conditioning and
an adjustable seat, with an optional air
suspension system to reduce vibrations.
For improved safety, there are large
handrails and a wide step with anti-slip
plates, right and left rear view mirrors, a
travel alarm and safety glass.
The series has been designed for easy
maintenance and reduced downtime. A PC
monitoring function enables connection to
the e-POS control system. Various param-
eters can be checked during maintenance,
including pump pressure, engine rotation
and engine speed. This information can be
stored and printed for analysis.
Easy access to all components, includ-
ing the engine oil filter, radiators and
grease inlets, enables quick maintenance
procedures and prevents contamination
to the surrounding environment.
The DX225LCA excavator is ideal for
diverse industries, including construction,
mining and quarrying, marine, civil engi-
neering and forestry.
To complement the gains of the Korean
build, Doosan offers a national technical
advisory, maintenance and support service
throughout its branches in Johannesburg,
Durban and Wolmaransstad, as well as
dealers in East London, Port Elizabeth,
Cape Town, Middelburg, Kimberley,
Rustenburg and Bloemfontein.
b
COVER STORY
The DX225LCA excavator is
ideal for diverse industries,
including construction, mining
and quarrying, marine, civil
engineering and forestry.