DL420A | Wheel Loader

DL420A | Wheel Loader
KG
| 210 kW (282 HP) at 2100 rpm
| (Straight / full turn) 17.8 / 15.5 t
| 3.5 ~ 4.5 m³
DL420A
| Wheel Loader
DL420A – A POWERFUL WHEEL LOADER
Take a tour
Performance
Comfort
Reliability
Maintenance
Technical specifications
Equipment
2
pages 4 - 5
pages 6 - 7
pages 8 - 9
pages 10 - 11
pages 12 - 13
pages 14 - 17
pages 18 - 19
DO YOU WANT LOWER RUNNING COSTS, THE MOST EFFICIENT TECHNOLOGY AND FIRST-CLASS
OPERATOR COMFORT?
The key phrase used during the development of the DL420A was ”giving optimum value to the end user”.
This translates, in concrete terms, into:
• Increased productivity thanks to the use of the powerful 11 litre engine and the excellent synchronization
of the drive train with the hydraulic system
• Improved ergonomics, increased comfort and excellent all-round visibility ensuring safe and pleasant
working conditions
• Improved reliability through the use of new high-performance materials, the development of new
computer-assisted design techniques and by intensive and systematic test programs. All of these combine
to increase the life of vital components and reduce operating costs
• Reduced maintenance increases uptime and reduces operating costs
3
TAKE A TOUR
COMFORT AND CONVENIENCE
• Spacious, comfortable cab
Cooling compartment separated from the engine
compartment to prevent warm and dusty air
from entering and allow better control of air intake
• Large storage compartments
• Large windows for better visibility
• Rear screen antenna
POWER AND FUEL EFFICIENCY
3-stage air filter with Turbo 3
cyclone dust separator
• Air suspension seat, rear view camera,
heated mirrors (optional)
• Doosan DE12TIS engine (210 kW at 2100 rpm)
• High torque at low rpm for better response
• Clutch cut-off via brake pedal
• 4-gear transmission
“Lift arm raise kick-out” and
“return to dig” functions
Hydraulically driven fan
as standard
Wide range of attachments
Load isolation system
(option)
Easy access to maintenance
components from the ground
Clean, solid articulation
hinge design
3rd spool (option)
Latest generation ZF axles with
automatic limited slip differentials
4-gear ZF powershift transmission with automatic and
manual shift modes
Fenders, radiator grille, engine bonnet
and other parts made of robust steel
4
5
More power that lifts productivity to new heights
n Strength and intelligence – a winning combination
Exceptional power combined with the finest workmanship results in a machine that will perform at the
highest level. The DL420A enhances your output from every angle. Impressive digging power and high
traction make penetration easy and allow you to tackle the hardest materials.
Work is quick and efficient with a powerful hydraulic system.
AIR-TO-AIR INTERCOOLER ENGINE
• Highly efficient, delivering the highest power output in its class
• Environmentally friendly
• Meets U.S. EPA Tier II regulations and European Stage II regulations
governing the reduction of harmful NOx and PM emissions
Automatic transmission
The transmission is particularly smooth and the gear ratios are
optimized. There are no shocks, resulting in an appreciable level of
comfort for the operator. The traction force is optimum under all
working conditions.
The combination of these characteristics enables the loader to
maintain high speed under all conditions, enhances breakout forces
and thus optimizes bucket filling at each cycle.
The transmission has three modes of operation:
• Manual
• Automatic (automatic shift for all gears)
• Semi-automatic (automatic with a “kick-down” for first gear)
Axles
Improved internal oil flow greatly reduces the temperature difference
between the hub and the differential, as well as prevents premature
disc wear due to overheating of the internal hub components.
Limited-slip ZF differential
The front and rear axles are fitted with limited-slip differentials.
This automatically ensures maximum tractive effort and easy driving
over soft and muddy ground. It also reduces the risk of skidding and,
at the same time, prevents excessive tyre wear.
The brake discs integrated into the planetary reduction gears in the
hubs are metal reinforced, ensuring long hours of operation and
reduced maintenance.
The brake piping has been integrated into the axle
housing and is protected from damage from external
shock when the machine drives over rough terrain.
Hydraulic power steering
Works with a flow amplifier and priority valve. And the emergency steering system (option) is a safety feature in
the event of a malfunction of the steering system while travelling.
6
High lift
Better dump reach and height
at bucket pivot point.
Increased axle durability and machine stability
The brake discs have been repositioned to the rear part of the reduction gear where the rotation speed is lower. As a result, the discs are exposed to lower
rpm, heat generation is reduced and the life span of the discs is greatly extended. This positioning provides excellent machine stability. An automatic disc
clearance regulator has been integrated into the design and the disc clearance is maintained at the optimum level at all times as the discs wear out.
This prevents any lag in brake response. Another convenient feature is that brake disc wear can easily be measured without disassembling the hub.
7
Comfort at its best – take a seat!
n The workspace you’ve always wanted
The productivity of your wheel loader is directly linked to the operator’s performance. That’s why
Doosan has placed comfort at the very centre of its design priorities for the DL420A. More space, better
visibility, air conditioning, a comfortable seat and plenty of storage space make it easy to work for hours
without fatigue or discomfort. There’s no need to pay extra for the options you want – most of them are
standard features on this loader.
3" Safety belt
(option) –
Retractable
seat belt
Air conditioning & defroster system
Double filtered air cab, air ducts are distributed throughout the cab with proportional sensitive controls
and air re-circulation facility. We offer the same comfort as a passenger car.
Precise control levers
Different options are available
to match what the operator is
accustomed to as well as an
optional auxiliary lever.
8
Sunvisor & room mirror
Featured as standard for extra
comfort when operating.
Steering column
The steering column is
adjustable for reach and rake
and features both tilting and
telescopic functions.
Arm rests
Correct positioning with clear
controls makes the operator’s
task easier.
Central indicator panel
A high-visibility indicator panel allows the operator to check essential
loader functions.
Air-suspension seat (option)
The DL420A is equipped with a very
comfortable, fully adjustable seat.
Lateral console
The ergonomically laid out switch panel in line with the natural
movements of the body allows very convenient operation. Provision is
made to install switches for additional equipment if required.
9
Doosan reliability – whatever the job!
n Dependable performance for low lifetime cost
Doosan has been building heavy construction equipment for 40 years. This long experience is reflected
in the superior design and development of our wheel loaders as well as by an extensive logistics
network. The operator knows that the DOOSAN loader is a tough, durable product with large power
reserves, which he can rely on to work for long periods.
For DOOSAN, reliability means simplicity of design, durability and maximum uptime.
Designed to last
We pay the highest attention to the design and manufacture of
structural components.
Finite Element Analysis is used to ensure an extended lifetime for main
structures such as the chassis, joints and lift arm. After modelling,
they are subjected to intensive laboratory and field testing in extreme
conditions. Ongoing statistical analysis is used to continually increase
the level of reliability.
Reinforced bucket
The lower and side panels of the bucket have been reinforced
with additional plates.
Reinforcements:
• On both sides - 1 area
• On lower panel - 3 areas
ORFS - all ports
To ensure perfect tightness, all ports,
even the low pressure ports which are used
for the pilot lines, are ORFS type.
10
2-Piece type tooth
(Pin-on-tooth + bolt-on adapter)
Radiators installed on rubber mounts
The aluminium radiators are installed on rubber
mounts to effectively dampen vibration.
Propeller shaft
A cover has been fitted to protect the oil seal from dust and foreign
objects, thus wear and damage are reduced.
Radiator grill
The radiator grille is made of reinforced steel for increased shock
resistance.
11
Easy maintenance for more uptime
A liquid crystal display conveys information about the ZF transmission. At the same time, it reports the
nature of any problem. When servicing the loader, a special tool can be used to adjust the clutch discs
to compensate for their wear. Additionally, by connecting a laptop computer, a complete transmission
diagnostic can be performed.
Short and simple maintenance operations at long intervals mean that your machine is available on site
when you need it. Our service centre in the heart of Europe has more than 40000 parts in stock to supply
you with top quality components as quickly as possible.
Hydraulic oil return filter
The hydraulic oil return filter, made of glass fibre, eliminates up to
99.5% of foreign particles. It effectively protects the hydraulic circuit
and extends service intervals.
Central joints
The central joints of the machine are particularly robust.
The attachment points are positioned to withstand bending and
torsion forces. A large amount of space has been left to allow easy
access to internal components.
Air cleaner
The forced-air cleaner removes 99% of particles. It is preceded by a
high capacity Turbo pre-filter. The cleaning and cartridge replacement
intervals are very long.
Remote greasing ports
The front pins can be lubricated from the outside of the machine
without having to crawl under it or make awkward movements
to reach the lubrication ports.
Transmission filters
The transmission filters are easy to reach and
can be checked from ground level, like all other
maintenance components.
12
Hydraulic test points
The pressure test points (main pressure,
steering, braking, etc.) are grouped together for
easy access.
Convenient transmission oil filling
The oil filler pipe is located near the articulation
joint for easy access.
Easy access
All maintenance and control points are easy to reach from ground level.
Reversible fan
The radiator fan is reversible to make cleaning
of the coolers easier when the machine is
operating in dusty environments.
Transmission diagnostics
The laptop PC ”monitoring”
function allows the status of
the transmission to be checked
very easily. Disc brake wear is
automatically compensated
and can be checked without
disassembly.
Remote engine oil &
coolant drain
Remote drain valves have
been installed in an easily
accessible location for
convenient draining of fluids.
(coolant, engine oil)
Large capacity
transmission oil cooler
The large capacity
transmission oil cooler
ensures durable and stable
operation of the transmission.
13
Technical specifications
Q Engine
Q Transmission
Q Hydraulic system
Q Cab
• Model
4-Gear powershift transmission with 3 operating modes: manual,
fully automatic or semi-automatic with ”kick-down” function.
Based on high quality components. Equipped with a modulation
system for protection and smooth gear and direction changes.
A manual transmission control lever is located to the left of the
operator. Direction change function also available in automatic or
semi-automatic mode. The transmission can be disengaged by
the brake pedal to deliver full engine power to the hydraulics.
A safety device prevents the engine from starting if the transmission
is not in neutral.
The hydraulic system consists of tandem vane pumps.
The hydraulic control valve (2 spools) has a third port for powering
an auxilary hydraulic function (option) and is controlled by standard
single lever.
All hydraulic lines are equipped with special seals (ORFS).
Spacious modular cab with excellent all-round visibility, ample storage
space and cool box. Good overview of the bucket, tyres and loading
area. Push button controlled air conditioning and heating with air
recirculation function. Double cab air filter installed in the cab with
extra protection for the operator in dusty or polluted environments.
Viscous suspension mount for maximum comfort. High quality
seat with air suspension (option). All operating information clearly
displayed in front of the operator. Control functions are centralised on
a console on the right. Adjustable seat, arm rests and steering column.
DOOSAN DE12TIS
The high performance Doosan DE12TIS 6 cylinder,
direct injection, turbo charged, air–air intercooler engine
offers low fuel consumption and low exhaust emissions,
which are well below the requirements of the Tier II
legislation.
• No. of cylinders
6
• Rated power (Net)
206 kW (276 HP) at 2100 rpm (SAE J1995)
• Rated power (Gross)
210 kW (282 HP) at 2100 rpm (SAE J1995)
• Maximum torque (Gross)
130 kgf/m (1275 Nm) at 1200 rpm
• Engine rpm low / high
975 ± 25 / 2350 ± 50 rpm
• Piston displacement
• Gearbox
123 mm x 155 mm
• Starter
Simple stage / mono phase / fixed wheel stator
4 Speed, full auto power-shift, countershaft, engine mounted
with flexible plate
Stall ratio:
2985
• Speeds km/h (Tyre 26.5-25-20PR - L3)
8.3 / 13.6 / 29.0 / 40.0
8.3 / 13.6 / 29.0
21.5 ton
• Maximum gradeability
24 V / 6.6 kW
• Batteries
58% / 30°
• Braking distance
2 x 12 V / 150 Ah
• Air filter
3-stage air filter with Turbo 3 cyclone dust separator
• Cooling
Tandem vane pump
• Maximum flow (with / without steering)
240 / 434 l/min
• Operating pressure
• Doors
1
• Emergency exits
250 kgf/cm² (200 bar)
• Pilot system
ZF 4 WG 260
• Torque converter
Forward 1 / 2 / 3 / 4:
Reverse 1 / 2 / 3:
• Maximum traction
11051 cm³
• Bore x stroke
• Main pumps
13.8 m at 40 km/h
• Breakout force
197 kN (20 ton)
Reversing fan to facilitate cleaning in manual mode
Automatic functions for positioning the bucket for digging
as well as a function for stopping the lift arm at the desired
height and low position by manual adjustment are standard.
A simple levelling function is also standard.
• Filters
In the oil return to the tank, the glass fibre filter has a filtering
capability of 10 micron.
• Loading cycle (seconds)
Lift arm:
Bucket dump:
Q Steering system
14
Z-kinematics with simple lifting piston system designed for heavy
duty (20 ton with a 3.9 m³ bucket). The breakout force combines with
a bucket angle that is maintained throughout the range of movement.
Bucket angles are optimised in the travelling position and at ground
level. Load Isolation System (LIS) can be fitted for improved comfort
and output (optional).
• ZF Axles
Cylinders
Quantity
Bore x rod diameter x stroke (mm)
Lift
2
180 x 95 x 928
Bucket
1
200 x 105 x 600
Fully suspended front and rear drive axles with planetary
reduction gears in the hubs. Front and rear equipped with
limited slip differentials. Optimum traction in all conditions.
21.5 ton traction power allows operation on slopes of 58%.
• Differential lock ratio
Front (30%) / Rear (30%)
• Oscillation angle
+/- 12°
• Brakes
Dual multi-disc circuit with sintered metal discs for extended
service life. Braking system activated by a pump and
accumulator circuits. Spring-applied, hydraulically released
parking brake mounted on the transmission shaft.
LwA external noise:
LpA operator noise:
112 dB(A) (ISO 6395, 2000/14/EC)
74 dB(A) (ISO 6396)
Q Pressure settings
Sensing type with flow amplification valve and priority valve.
• Steering angle
194 l/min
• Steering cylinders (2)
Q Axles
ROPS ISO 3471:2008 - SAE 1040
FOPS ISO 3449 - SAE J231
• Noise levels
up: 6.0 / down: 4.2
1.3
40°
• Oil flow
Q Lift arm
2
• Safety standards
Emergency steering system with electric motor-driven
hydraulic pump (option).
Cylinders
Quantity
Bore x rod diameter x stroke (mm)
Steering
2
100 x 50 x 450
Working (pump cut-off):
Steering relief (LS port side):
(steering pump side):
Pilot control:
Brake accumulator charging:
Service brake:
Fan motor:
Parking brake release:
Transmission selection pressure:
200 ± 10 bar
185 ± 5 bar
210 ± 5 bar
28 + 2 bar
120 bar
80 ± 3 bar
170 ± 10 bar
120 ± 5 bar
16~18 ± 1 bar
Q Fluid capacities (litres)
Fuel tank:
Cooling system:
Engine oil:
Front axle:
Rear axle:
Gearbox and converter:
Hydraulic system:
367
50
25
45
42
54
265
15
Dimensions and operational data
Q Dimensions & operational data
M
Bucket mounting
Pin-on
Tyre size 26.5-25-20PR (L3)
General purpose
Configuration
Capacity heaped ISO/SAE
Tooth type
L
H"
H
G
A
E
Teeth
Teeth
Bolt-on
edge
Bolt-on
edge
Bolt-on
edge
3.7
3.9
4.0
3.9
4.1
4.2
3.9
Adapter Adapter Adapter
tooth
tooth
tooth
Teeth
-
-
-
Mono
tooth
Teeth &
Segments
Teeth
Teeth
Bolt-on
edge
4.1
3.5
4.3
4.5
4.5
-
Mono
tooth
3354
Adapter Adapter Adapter
tooth
tooth
tooth
Teeth
Bucket width
mm
3040
3200
3270
3040
3200
3270
3200
3200
3230
3200
3200
kN
198
197
197
197
196
196
197
195
196
183
181
170
Static tipping load (straight)
kg
18030
17840
17820
17830
17670
17635
17900
17635
17600
17620
17420
17125
14460
kg
15250
15490
15070
15075
14935
14905
15135
14905
14875
14895
14720
H
Dump height (at 45˚) – (fully raised)*
mm
2960
2960
2960
3085
3085
3085
2985
2960
2985
2985
3025
2855
I
Dump reach (at 45˚) – (fully raised)*
mm
1425
1425
1425
1285
1285
1285
1395
1425
1395
1480
1350
1535
Dump height (at max dump) – (at max reach)*
mm
680
680
680
856
856
856
717
680
717
596
770
545
Dump reach (at max dump) – (at max reach)*
mm
1460
1460
1460
1395
1395
1395
1465
1460
1465
1480
1425
1520
Digging depth
mm
105
105
105
105
105
105
105
105
105
105
105
105
J
Height at bucket pivot point
mm
4295
4295
4295
4295
4295
4295
4295
4295
4295
4295
4295
4295
Max tilt angle at carry position
°
47
47
47
47
47
47
47
47
47
47
47
47
M
Max tilt angle fully raised
°
55
55
55
55
55
55
55
55
55
55
55
55
K
O
-
Teeth
Light material
Breakout force
Static tipping load (at full turn)
K
J
B
I"
I
m³
Rock
Max tilt angle on ground
°
43
43
43
43
43
43
43
43
43
43
43
43
Max tilt angle at max reach
°
54
54
54
54
54
54
54
54
54
54
54
54
Max dump angle at max reach
°
73
73
73
73
73
73
73
73
73
73
73
73
Max dump angle on ground
°
68
68
68
68
68
68
68
68
68
68
68
68
L
Max dump angle at fully raised
O
External radius at tyre side
°
45
45
45
45
45
45
45
45
45
45
45
45
mm
6570
6570
6570
6570
6570
6570
6570
6570
6570
6570
6570
6570
Q
External radius at bucket edge
mm
6970
6860
6970
6955
6845
6955
6875
6930
6875
7055
7035
7035
E
Wheel base
mm
3500
3500
3500
3500
3500
3500
3500
3500
3500
3500
3500
3500
Width at tyres
mm
2975
2975
2975
2975
2975
2975
2975
2975
2975
2975
2975
2975
F
Tread
mm
2300
2300
2300
2300
2300
2300
2300
2300
2300
2300
2300
2300
G
Ground clearance
mm
465
465
465
465
465
465
465
465
465
465
465
465
A
Overall length
mm
8890
8890
8890
8700
8700
8700
8850
8890
8850
8975
8790
9030
Overall height
mm
3535
3535
3535
3535
3535
3535
3535
3535
3535
3535
3535
3535
kg
21785
21955
21980
21900
22060
22095
21915
22140
22210
22040
22150
22170
C
Operating weight
* Measured to the tip of the bucket teeth or bolt-on edge. All dimensions given with 26.5-25-20PR (L3) tyres.
Q
B
F
16
17
Attachments
Standard and optional equipment
Q Standard equipment
Bucket capacity
Density of operating materials
Kg/m3
m3 SAE
4.5
2000
1800
1600
4.3
1400
1200
4.1
1000
800
95 %
100 %
115 %
The filling factor depends on the type of material, the working conditions and the
experience of the operator.
18
Sandstone
Basalt
Calcium rock
Bucket filling factor
Granite (shale)
tonnes/m3
Rocks (crushed)
1.5
Sand
1.6
Earth
1.7
Gravel
1.8
Loam
1.9
Coal
2
600
400
Coke
Product density
Snow
3.9
The specific weight of the material largely depends on the level of humidity,
the degree of compaction, composition, etc.
Engine
Three-stage air cleaner with cyclone pre-cleaner, inner filter and external plugging
indicator on the dashboard
Fuel filter
Hydraulically driven fan
External drains for engine oil and coolant changes
Maintenance warning lamp
Lifting and hydraulic system
Robust Z bar lifting system
General purpose bucket 3.9 m³ (SAE, heaped)
Single lever joystick
Hydraulic control valve with 2 spools
Automatic lift arm kick-out
Automatic bucket return to dig
Levelling function
Fast couplers for hydraulic check
Fixed tandem vane pump system
Mono control lever (FNR)
Steering system
Load sensing steering system with flow amplifier
External equipment
Lifting hooks
Articulation lock in the transport position
Towing hitch
Tool compartment
Semi fenders with rubber protection
Mudguard
Lower protection plates
Electric system
Alternator 60 A / 24 V
Work lights: 2 at the front and 4 at the rear (6 x 70 W)
Travel lights: low and high beam
Tail indicators, stop, reversing lights
Reverse travel alarm
Fuel filling pump
Drive line and brake system
Transmission clutch cut-off via the brake pedal
Transmission with self-diagnosis and monitoring indicator with electronic plug for fast
adjustment
Transmission mode selector switch (Manual / Auto 1 ‹–› 4 / Auto 2 ‹–› 4 with kick-down)
Starting safety system
Travel direction and kickdown selection lever at left of the steering wheel and on the
joystick
Limited slip differentials on front and rear axles
Dual brake circuits with accumulator
Tyres: 26.5-25-20PR (L3)
Dual service brake pedals
Parking brake on the transmission, spring-applied hydraulic release
Cab
ROPS cab (SAE J 394, SAE 1040, ISO 3471) - FOPS cab (SAE J 231, ISO 3449)
Air conditioning
Double filtered air cab
Mechanical seat with 2” safety belt
Adjustable steering column (inclination & telescopic)
Floor mat
Tinted glass
Left sliding window
Front and rear wiper and washer
Sun visor
Interior cab light
Interior and exterior rear view mirrors (2 + 2)
Machine monitoring (dials, gauges and lamps)
Main switches in front of the driver (starter & hazard switch)
Switches for the general functions in the right console
Horn
Cigarette lighter and 12 Volt power socket
Cup holder
Multiple storage compartments
Radio antenna built into rear window
MP3 / CD player
Digital clock
Q Optional equipment
Tyres
L3, L5, various brands
Lifting and hydraulic system
Hydraulic control valve with 3 spools
Additional lever for 3rd function
Two hydraulic levers for 2 spools with FNR switch
Three hydraulic levers for 3 spools with FNR switch
Load isolation system (LIS)
Steering system
Emergency steering pump driven by electric motor
External equipment
Full fenders with rubber protector
Additional counterweight
Long lift arm (high lift)
Bottom protection plates
Lift arm float kick-out
Electric system
Rotating beacon
Additional lighting
Other
Tool kit
Mudguard, fully covering
Cab
Heated side mirror
Rear camera (CCTV) and monitor
Radio / CD / MP3
Fuel heater switch
Air suspension seat with 3“ belt
Attachments
Bucket: V-type 3.5 m³
Bucket: Adapter Tooth 3.7 m³, 3.9 m³, 4.0 m³, 4.3 m³ – WC Welded 4.0 m³
Bucket: Cutting Edge 3.9 m³, 4.1 m³, 4.2 m³, 4.5 m³ – WC Welded 4.2 m³
Bucket: Mono Tooth 3.9 m³, 4.5 m³
Bucket: Segment Edge: 4.1 m³
Various types of other attachments
Load Isolation System (LIS)
The bucket is suspended using
a closed accumulator to reduce
material loss as well as stress on
the driver and machine structure.
The system is automatic and
depends on the speed of
operation.
Fingertip control
3 lever control for lift arm, bucket
and 3rd circuit. FNR switch for
changing travel direction as well
as kick-down, return to dig, lift arm
raise kick-out and floating mode.
Some of these options may be standard in some markets. Some of these options may
not be available for certain markets.
Please check with your local DOOSAN dealer for more information about availability or
to adapt your machine to your application needs.
19
Doosan Infracore
The pulse of transformation
Pantone 871 C
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Construction Equipment
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Engines
The spirit of challenge and innovation has led Doosan. We started out as a small store in Seoul in 1896 and have expanded into a global company.
Today we are engaged in the infrastructure support business (ISB), which encompasses industrial facilities, machinery, heavy equipment and
construction. You can also see the Doosan brand in various other industries.
Doosan Infracore Construction Equipment
A partner you can trust
Finance
your
ambitions
www.doosanequipment.eu
Financial Solutions
Always a dealer near you
Parts & Service
Doosan Infracore Financial Services (DI FS) is
specialised in creating financing solutions to
meet a wide variety of needs.
Contact your local dealer for more information.
Our well-developed dealer network has the
knowledge and experience to take the best
care of our Doosan customers. No matter
where you are, you’ll get the service you
expect - and can rely on!
• Complete parts & service support for all
Doosan products
• Highest quality genuine parts
• Large, dedicated staff of factory-trained
aftermarket professionals in the field
www.doosanequipment.eu
©2012 DOOSAN D 4401730-EN (06-12)
Doosan Infracore Construction Equipment - Drève Richelle 167 - B-1410 Waterloo, Belgium
Specifications and design are subject to change without notice. Pictures of Doosan products may show other than standard equipment.
You are invited to take a closer look at the new world that is being built by Doosan, visit us at:
www.doosaninfracore.com and www.doosanequipment.eu
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