Cold Milling Machine W 250 i

World class in performance and productivity
Cold Milling Machine W 250 i
High-performance cold milling machine
– designed with sheer efficiency in mind
No other milling machine is equal to greater challenges in road construction
Maximize productivity while minimizing o
­ perating
costs – this maxim is the key for construction projects
that require large pavement areas to be milled at record
speed. Tremendous engine power makes the W 250 i highend cold milling machine from Wirtgen a top performer
which completes even the toughest jobs with maximum
efficiency. But the large milling machine has even more to
offer: the WIDRIVE machine management system, which
greatly improves operator comfort, guarantees low fuel
consumption rates while enabling an environmentally
­compatible milling process. It goes without saying that,
owing to its innovative dual-engine concept, the W 250 i is
a role model in economy during phases in which performance requirements are low.
The W 250 i excels in the
quick completion of
large-scale milling projects
A machine that
lets performance
speak for itself
The large milling machine
is removing the pavement
at high advance rates
Tremendous milling performance
State-of-the-art machine management and maximum
drive power.
WIDRIVE
Intelligent machine management system for low
­operating costs.
Dual-engine concept
Milling with one engine at 447 kW / 600 HP / 608 PS or
two engines at 739 kW / 991 HP /1,005 PS.
Smart ISC travel drive system
Traction control, power control, precise maneuvering
in bends.
Six different milling widths
Milling widths ranging from 7’ 3” to 14’ 5” (2.20 m to
4.40 m).
2 // 3
Unlimited milling performance
Unrivalled in the large milling machine class
Each type of pavement removed by the W 250 i is
instantly crushed into small-sized material by the
top-performing machine at tremendous advance rates as
two ultra-strong diesel engines flex their muscles. M
­ illing
extensive areas on roadways or airports is therefore not
a problem at all. The machine’s intelligent WIDRIVE
­ anagement system, state-of-the-art dual-engine concept
m
and choice of different engine or milling drum speeds are
extremely useful features on such high-profile, large-scale
construction projects: they contribute to significantly
­reducing the overall operating costs.
Advance rate - ft/min (m/min)
230 (70)
213 (65)
197 (60)
164 (55)
164 (50)
148 (45)
131 (40)
115 (35)
98 (30)
82 (25)
66 (20)
49 (15)
33 (10)
17 (5)
0
Milling
depth 012 3 45 678910
1112
13
14 inches
(25) (50) (75) (100)(125) (150)(175)(200)(225) (250) 275) (300)(325)(350) (mm)
Engine speed = 1,600 min-1
Engine speed = 1,900 min-1
Engine speed = 2,000 min-1
Milling performance at 7’ 3” (2.2 m) milling width
Its tremendous engine power makes the W 250 i the
ideal candidate for milling pavements at depths of up
to 14” (350 mm) or hard concrete pavements at high
advance rates.
Beyond the highly efficient milling of individual layers,
complete road pavements can also be removed in a
single machine pass.
Optimum organization of trucks enables the W 250 i to
remove up to 1,200 tons per hour of asphalt – which is
equivalent to the payload of 60 trucks.
The high-performance W 250 i is also the ideal choice
for large-scale projects that need to be completed on
schedule under tremendous deadline pressure.
4 // 5
Optimum milling performance –
whatever the job
Choice of three different milling drum speeds
A clever feature assists the machine operator in
optimizing diesel fuel consumption, milling performance and thus the overall efficiency of the W 250 i:
adjustment of the milling drum speed from the operator’s
platform. It guarantees optimal milling performance levels
regardless of conditions and across a wide range of applications. The W 250 i usually runs at the medium milling
drum speed when carrying out standard milling jobs, such
as milling a surface course. High speed is selected for the
large-scale milling of thin pavement layers. Low speed is
the right choice if maximum milling performance levels are
to be achieved at the lowest possible cost: it guarantees
reduced fuel consumption rates and low cutting tool wear.
Manual adjustment of the milling drum speed – enabling the
machine, when working in ECO
mode at low engine speed ...
More power,
less fuel
… to efficiently remove complete
road pavements down to a depth
of up to 14” (350 mm)
A selector switch in the operator’s platform enables
the engine or milling drum to be set to three different
speed levels.
Medium milling drum speed ensures a favorable particle size of the milled material and should be selected
for surface course milling jobs.
Low milling drum speed is recommended if high milling
performance levels are required at low milling costs,
for instance, when removing complete pavements at
full depth.
High milling drum speed at high advance rates ensures
an excellent surface texture in fine milling jobs.
6 // 7
High-tech – yet easy to operate
Controlling the W 250 i with ease
The innovative operating concept installed in the
W 250 i supports the operator and keeps him upto-date on everything he needs to know. The control
panels on the left and right have identical features and are
individually adjustable, thus allowing ease of operation on
both sides of the machine. Together with the LEVEL PRO
control panel, the multifunctional control screen can be
swivelled to both sides to always face the machine opera-
tor. It informs the operator about all important machine and
operation parameters. All controls are located within easy
reach and in the operator’s field of view. They are labelled
in a language-neutral manner and allow easy and intuitive
operation. In the final analysis, the operator is familiar with
the W 250 i very quickly, enabling him to fully focus on the
milling process and deliver top performance.
A small number of
buttons and switches
… and right ensure
ease of operation
The W 250 i offers great clarity, a
small number of controls and adjustment to personal preferences
Control panels with
identical features left …
The number of controls has been minimized as the
intelligent WIDRIVE machine control system takes care
of many tasks previously performed by the machine
operator.
The clearly arranged controls are ergonomic in design
and help to prevent fatigue during work.
Ground personnel can use control panels mounted on
the sides of the machine to set or modify important
parameters, such as the milling depth.
Lockable, break-proof covers protect all of the control
panels against vandalism.
8 // 9
Multifunctional control screen
Giving operators
the full picture –
at all times
Operation parameters:
Job data:
The control screen is
mounted in the operator’s
immediate field of view …
Diagnostics:
… and displays operation parameters, job data or diagnostic
details clearly and in color
Making easy work of any job
The multifunctional control screen provides clear information on operation parameters and maintenance
details. User-friendly diagnostic tools with clear, unambiguous graphic displays enable comprehension of the
diagnostics procedures after only a short training period.
Another feature is the continuous logging of events during the entire milling process. After keying in the material
density and milling width, the control system automatically
displays information such as the weight and volume of the
material milled, the size of the area milled or the number of
trucks loaded. These job parameters allow the quick and
easy settlement of projects and provide reliable logging of
daily performance.
WIDRIVE – technology designed
with people in mind
Engine station
Automatic speed
adjustment in accordance with the milling
process to lower diesel
fuel consumption
Dual-engine design:
the second engine is
switched on and off
automatically
Loading of
milled material
Consistently high belt
speed in case of
engine lugging
Belt is switched off
automatically during
reversing and in
transport mode
Travel drive
ISC (Intelligent Speed
Control) offers
optimized machine
advance rate, traction
control and adjustment
of the track speed in
bends
Milling drum assembly
Automatic raising of
side plates, gradation control beam and
scraper in transport
mode
Height adjustment
Four-fold full-floating
axle
LEVEL PRO leveling
system
PTS (Parallel To
Surface)
WIDRIVE is an intelligent machine management system. It automatically manages numerous steps in the
control of the W 250 i which normally need to be performed
by the machine operator. WIDRIVE links various machine
functions, such as diesel engines, travel drive, milling drum
drive and conveyor drive, water spray system, automatic
PTS system as well as LEVEL PRO leveling system, thus
Water system
Switches on and off
automatically
Water feed adjustment
depending on engine
load
enabling the operator, who is relieved of much of his previous workload, to fully focus on the quality of his work.
The intelligent linking of these machine functions pays for
the customer in terms of significantly reduced diesel consumption rates, faster processes, reduced water demand,
low engine noise levels and increased daily production
rates.
10 // 11
Perfect visibility and
unmatched operator comfort
The so-called “wasp waist”
­design enables a free view of
the milling cut
Ergonomic working in both
upright and seated position
Perfect working environment ensures maximum effectiveness
The spacious operator’s platform is fully equipped
to enable ergonomic working in line with practical requirements and over extended periods of time. The
recessed chassis contour – or s­ o-called “wasp waist”
design – of the W 250 i provides the machine operator
with a full view of the front right track unit, milling edge
and edge protection plates. He also has an excellent view,
in both upright and seated position, of the controls and
everything that is happening on the construction site. The
vibration-isolated operator’s platform is accessed conveniently via access ladders fitted on both sides. It is equipped
with individually adjustable comfort seats, a hot-air blower
and a protective canopy that is fully movable to the left or
right side. All of these features make for perfect working
conditions.
Overview of cameras:
6
2
1
3
4
5
1 Camera at the rear
2 Camera at end of conveyor
3 Camera at scraper
4 Camera front, centre
5 Camera front, right
6 Camera front, left
The multifunctional control screen can be switched to
camera mode to monitor important work processes.
Two or six high-resolution color cameras can be installed in accordance with customer specifications.
When using six cameras, an additional camera screen
is installed to allow the simultaneous display of two
different camera views.
Optional installation of an intelligent data converter enables defined machine parameters to be read out from
the machine’s control system as per the standardized
WIFMS norm.
12 // 13
LEVEL PRO guarantees
­high-precision milling results
“Rapid slope” – the electronic
cross slope sensor for the milling
of predefined cross slopes
Displacement sensors in the
hydraulic cylinder accurately
capture the milling depth
Geared up for the future with state-of-the-art technology
An accurate leveling system is essential for achieving a perfect working result. Wirtgen has developed
a specific leveling system for use with cold milling machines: LEVEL PRO. The overall system comprises various
sensors, a controller unit and a separate control panel.
The graphics-enabled LEVEL PRO screen provides a clear
read­out of key parameters. Set and actual values for the
left and right milling depth as well as cross slope parameters are clearly shown on the displays as work progresses.
In addition, the memory feature is very useful to program,
store and invoke set values.
Multiplex system: two ultrasonic
sensors plus the sensors mounted
at the side plates capture the milling depth
Hydraulic milling depth
sensors capture the level in
front of the milling drum
●
●
●
■
■
Black
Blue
Red
Yellow
Green
=
=
=
=
=
slope sensor
sensor scanning in front of the drum
permanently installed sensor
socket for ultrasonic sensor, wire-rope sensor etc.
socket for LEVEL PRO control panel
Two lifting cylinders with integrated displacement sensors capture the milling depth at the edge protection
plates on both sides of the machine.
LEVEL PRO can be easily extended, for instance, by
the multiplex system, laser leveling, or 3D leveling
which uses the interface included in the system.
A great variety of sensors can be integrated into the
automatic leveling system, such as hydraulic milling
depth, cross slope and ultrasonic sensors.
The multiplex system analyzes the measuring points
of three sensors on each side of the machine – very
useful to ensure perfectly level surfaces.
14 // 15
Unrivalled power –
optimized environmental protection
State-of-the-art engine technology
Two separate ultra-performance diesel engines
enable the W 250 i to mobilize unparalleled milling
performance whenever required. In addition to the innovative dual-engine concept, the large milling machine offers
an exceptionally efficient energy balance while keeping
the strain on the environment low. For the two economical
engines can be operated at three different speed levels to
efficiently respond to the specific job requirements. The
fully electronic WIDRIVE machine management system
enables both engines to always work in the optimal performance and torque ranges, at extremely low fuel consumption rates and low operating costs.
1 Combined two-way catalytic converter
and diesel particulate filter
2 Special “direct-flow” air filters
3 Diesel engines 1 + 2 with cooled
exhaust gas recirculation and
variable turbocharger geometry
2
1
3
M [Nm]
5000
4500
4000
3500
3000
2500
2000
1500
1000
500
0
P (kW)
800
720
640
560
480
400
320
240
160
80
0
900
Engine output using two engines
Engine output using one engine
Torque using two engines
Torque using one engine
Engine speed = 1,600 min-1
Engine speed = 1,800 min-1
Engine speed = 2,000 min-1
1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 [1/min]
The W 250i features state-of-the-art engine technology
for lowest environmental emission levels, complying
with the stringent specifications of exhaust emission
standards EC Stage 3b / US Tier 4i.
To ensure effective exhaust gas purification, both
engines of the W 250i are equipped with a two-way
catalytic converter integrated into the diesel particulate
filter.
Combined with an effective sound insulation of the engine compartment, the quiet ECO engines guarantee
low noise emission levels.
The operator is protected from vibrations as both
engines are supported and isolated from vibration by
silent blocks.
16 // 17
State-of-the-art
dual-engine concept
It takes two to boost economic efficiency
Wirtgen is the first cold milling machine manufacturer
worldwide to offer uncompromising performance
characteristics and maximum efficiency by connecting two
diesel engines by means of a multiple V-belt. Taken together, the two engines provide tremendous power, enabling
the W 250 i to achieve unmatched performance levels.
Only engine 1 is in operation in those conditions where the
performance level required to achieve the specified results
is low. This offers significant advantages: deactivating engine 2 results in lower noise levels, lower fuel consumption
and therefore lower exhaust gas emission levels.
Tailoring performance
to economical fit
Engine 1
Engine 1 is running in all operating conditions.
Manual selection of engine 2
via the ignition switch
Engine 1
Engine 2
Engine 2 is switched on or off depending on requirements.
Economical drive concept:
two combustion engines
While engine 1 drives all functional groups, engine 2 is
switched on automatically or at the flick of a switch for
full milling power.
The operator decides for himself whether to switch off
engine 2 when performing milling operations at partial
load.
Engine 2 is switched off automatically in certain situations, for example, when initiating the transport mode
or when stopping the traction drive for three minutes
or longer.
Switching on engine 1 only is often sufficient for milling
off a surface course at a depth of 1.5” (4 cm).
18 // 19
PTS – always parallel
to the road surface
If one of the crawler tracks hits an
obstacle (such as an elevated
milling edge) during the milling
operation, the other three track
units contribute to compensating
the level offset, thus enabling the
level compensation to occur
much more rapidly.
Finely tuned compensation of surface irregularities
Why does the W 250 i always maintain its stability,
whether during the milling process, when simultaneously lowering all four lifting columns, when lowering
the rear track units into the milling cut, when altering the
milling depth, in case of surface irregularities on the left
or right side, or when in transport mode? The solution is
PTS. The intelligent automatic system aligns the machine
parallel to the road pavement: any surface irregularities are
compensated dynamically via the machine’s four hydraulically inter-connected lifting columns. This feature provides
the W 250 i with a high level of stability in both longitudinal
and transverse direction, relieves the operator from the
need for manual adjustment and improves the overall leveling quality. In short – it makes the milling process much
more efficient.
ISC – the intelligent
travel drive system
Crab steering permits the
­ achine to easily approach
m
the milled cut from the side
Narrow radii, a
­ ccurate
and fast steering
­maneuvers
Large steering angles of the four
track units enable surprisingly
small turning radii
When a large milling machine is required to be highly
maneuverable or make swift headway on difficult
ground, the turn of the W 250 i fits the bill. This is attributable to the hydraulic all-track steering system, freely
selectable steering modes, suspension units with separate
hydraulic height adjustment or continuously adjustable
travel speed as well as the intelligent ISC track control sys-
tem. It includes three basic features: an electronic traction
control system to ensure optimal traction, automatic speed
adjustment of the individual track units in bends to reduce
track pad wear, and an optimized advance rate to ensure
maximum milling performance at all times.
20 // 21
On the road of success with mature
Wirtgen milling technology
Hard-wearing HT22 quick-change toolholder system included
Wirtgen has continually developed and improved the
milling process in accordance with strict rules. Our
greatest strengths are extensive manufacturing expertise,
knowledge in the use of high-quality, highly wear-resistant
materials and optimal, application-specific positioning of
the cutting tools on the milling drum. The cutting tools
guarantee optimal milling performance, a highly precise
milling texture and low-vibration operation of the machine.
The broad range of different types of milling drums enables
an equally broad range of applications. In addition, the
wear-resistant HT22 quick-change toolholder system
ensures extended, highly effective milling intervals. All in
all, Wirtgen milling drums contribute to significant time and
cost savings in tough everyday operation on the job site.
Intelligent tool arrangement in
a helical pattern – cutting tools
tailored to the specific milling job
Simple replacement
of cutting tools
Quick replacement of
cutting tools, drum turning
device, ejectors suitable
for multiple use
The HT22 system is distinctive for its exceptionally
high durability, optimized tool rotation and significantly
extended service intervals.
The milling drum turning device moves the milling
drum into the ideal position in forward or reverse mode
with the diesel engine switched off.
The innovative hydraulic tool extractor can be operated effortlessly with the diesel engine switched off.
Ejectors made of highly wear-resistant steel can be
turned about 180° and thus be used twice.
22 // 23
Wide range of applications: milling widths
from 7’ 3” to 14’ 5” (2.20 m to 4.40 m)
Six different milling width options offered:
W 250 i with 7’ 3” (2.2-m) drum assembly
W 250 i with 8’ 2” (2.5-m) drum assembly
The following are additionally available:
 Drum assembly with a working width of 10’ 2” (3.1 m)
 Drum assembly with a working width of 11’ 6” (3.5 m)
 Drum assembly with a working width of 14’ 5” (4.4 m)
W 250 i with 12’ 6” (3.8-m) drum assembly
Cost and quality benefits through XXL-size milling drum units
To fully exploit its tremendous milling potential,
a housing extension enables the W 250 i to be
equipped with milling drums of up to 14’ 5” (4.40 m) in
width. Milling drum units wider than 7’ 3” (2.20 m) pay
for themselves quickly through tremendous area performance levels as they enable wide road pavements to be
removed in a single machine pass. The oversized drum
units play their trump cards in particular on wide urban
roads, roadways, highways and airports. In addition, the
milled surfaces impress with perfect evenness. This results
in enormous saving potentials as a process using greater
milling widths reduces the number of adjacent cuts and
of the turning maneuvers required while also driving down
labor cost.
Removing an 4” (11 cm) thick
surface and binder course of hard
asphalt material using the 7’ 3”
(2.2-m) ECO cutter
7’ 3” (2.2 m)
drum assembly
with FCS Light
FCS Light for a multitude of
applications at a milling width
of 7’ 3” (2.2 m)
ECO cutter
Milling width:
Milling depth:
Tool spacing:
7’ 3” (2.2 m)
0-14” (0 -350 mm)
1” (25 mm)
Fine milling drum
Milling width:
7’ 3” (2.2 m)
Milling depth:
0-4” (0 – 100 mm)
Tool spacing:
5/16” (8 mm)
Standard milling drum
Milling width:
7’ 3” (2.2 m)
Milling depth: 0-14” (0 -350 mm)
Tool spacing:
5/8” (15 mm)
Micro-fine milling drum
Milling width:
7’ 3” (2.2 m)
Milling depth:
0-1” (0 – 30 mm)
Tool spacing: 1/4” x 2 (6 x 2 mm)
Fine milling and micro-fine milling drums are fitted with
cutting tools arranged at a much narrower tool spacing
than standard milling drums.
Fine milling and micro-fine milling drums enable road
pavements to be roughened and their evenness and
tire adhesion to be improved.
Fine milling and micro-fine milling drums create finely
textured surfaces which are ideally suited as a base for
the application of thin pavement layers.
They additionally enable the cross slope of a road
pavement to be altered or coatings to be removed.
24 // 25
Milling drum unit
with many useful features
Set the scraper blade to “floating” position to allow full loading
of the milled material
… promotes favorable particle
sizes and prevents the formation of large slabs
Lock the scraper blade at the
required height for partial loading
of the milled material
The hydraulically lifting gradation control beam protects
the belt from damage, …
Milling flush to curb right down to the full working depth
An intelligently designed milling drum unit is part of
the W 250 i’s equipment package. For full loading of
the milled material, the operator lowers the scraper blade
hydraulically. When raised and locked at the required
height, the scraper blade enables the milled material to be
either partially loaded or remain in the milled cut. In addition, the scraper blade can be swung wide open for the
replacement of cutting tools. The edge protection plates
left and right are raised via hydraulic cylinders to precisely
mill along road fixtures. Raising the edge protection plates
also prevents them from digging into the ground in unpaved areas. To prevent collisions during maneuvering, the
gradation control beam, scraper blade and side plates are
raised when in transport mode. Yet another extra feature:
in emergency mode, all cylinder functions can be operated
even with the engine switched off.
The left edge protection plate can
be raised by 14” (350 mm), the right
one by as much as 18” (450 mm)
Accurate milling along curbs is
possible on the right side even
at maximum milling depth
Yet another highlight: the edge protection plate on the
right machine side can be raised by 18” (450 mm).
Accurate milling flush to curb is thus also ensured at
great working depths, enabling the edge protection
plate to move over the curb for the purpose of level
detection.
18” (450)
14” (350)
14” (350)
14” (350)
Dimensions in inches (mm):
Two separate water spray bars ensure optimal tool
cooling, with the water pressure being adjusted in
accordance with the machine’s performance and the
amount of water being continuously variable.
This feature extends tool durability and effectively
reduces the generation of dust.
26 // 27
Removing huge amounts
of milled material
The loading conveyor fills large
dump trucks in record time
Wide conveyor slewing angles
of 60° to either side ensure
smooth material transport
Reliable material loading even under full load
The powerful W 250 i has been designed for maximum performance and is therefore equipped with
a conveyor system offering exceptionally high conveying
capacities. The swivel-mounted and height-adjustable
discharge conveyor enables tremendous amounts of milled
material to be loaded onto trucks in the most flexible and
cost-effective manner. This is of particular advantage when
working in narrow bends or crossroad areas and to ensure
that trucks can change “on the fly”. The conveyor system
can be continuously adjusted to different belt speeds as
required by the milling job.
Useful for night work: the optional
stoplight system gives silent
“Stop” and “Go” instructions to
the truck driver
Continuously adjustable belt
speed and discharge range
High belt speed
Low belt speed
The belt speed can also be adjusted manually to
achieve perfect distribution of the milled material on
the truck by setting a variable discharge pattern.
Wear of the primary conveyor is minimized as the belt
speed is controlled automatically in accordance with
the load.
Optimizing the belt speed guarantees minimum wear
of the belts which have rugged cleat profiles.
A stoplight system integrated in the electrically adjustable, fold-in exterior mirrors enables visual communication with the truck driver without needing to revert to
audible signals.
28 // 29
Vacuum cutting system offers a high
level of operator comfort
Innovative extraction technology offers a free view of the milling edge
The health and well-being of the operating crew deserve particular attention. The W 250 i can therefore
be equipped with the vacuum cutting system to extract
fine material particles: by creating a negative pressure in
the milling drum housing, the mix of air and water vapor
is evacuated and, via a hose system, fed back into the
flow of the milled material transported on the discharge
conveyor. Better air quality and visibility in the working
environment of the machine operator and ground crew
­significantly improve operator comfort and boost staff
­performance. In addition, reduced soiling of components
such as the engine or air filter results in savings in the
replacement of spare parts or cleaning of the machine.
Quick maintenance
boosts productivity
For peace of mind in
operation
The engine cowling opens
hydraulically at the mere
push of a button
Maintenance diagnostics
and parameter settings via
the on-board control panel
Replacing the air filter is simple
and can be performed from the
operator’s platform
The hydraulically opening, hinged engine cowling and
wide-opening service panels on either side ensure full
access to all points of maintenance.
The machine’s automatic diagnostic system indepen­
dently monitors valves, sensors and control components.
All points of maintenance have been grouped together
and are arranged in a clear pattern, offering convenient
access.
Ample space is available for storing spare cutting
tools, tool kit, machine equipment and high-pressure
cleaner.
30 // 31
Successful moves in night operation
Excellent lighting enables night
operations to be completed
quickly and efficiently
All clear even in darkness –
backlit control panels
Wasting no time during night operations
The W 250 i calls it a day only after it has successfully
completed its daily work – which is not a problem at
all even in darkness. The machine puts up an equally compelling performance during the night and in broad daylight.
The lighting system comprises several spotlights and LED
lights offering flexible adjustment options to fully illuminate
the important work areas. Backlit control panels enable the
machine operator to easily control the W 250 i even during
night operations. And we don’t want to forget the smart
“Welcome” and “Go home” lights feature: when walking
away from the W 250 i, it fully illuminates the surroundings
of the machine.
Heavy-duty transport made easy
The control console can be pivoted down to facilitate transport
Transport –
a smooth affair
The folding conveyor reduces
the machine’s transport length
Transport on a flatbed truck with
the optional canopy folded down –
tailored to accurate fit!
The folding conveyor design reduces the overall length
of the W 250 i, thus permitting the use of smaller transport vehicles.
The optional canopy is folded down to transport height
hydraulically at the mere push of a button.
Our range of equipment options includes conveyor
support legs for machine transport on a flatbed truck.
Supplementary weights allowing flexible use enable
transport of the W 250 i on vehicles with a low maximum permissible payload.
32 // 33
Keeping a firm eye on environmental
standards
Significant reduction of environmental emission levels
The W 250 i large milling machine performs extremely
hard work, yet also successfully meets the challenge to comply with ever stricter environmental and health
requirements. Users of the W 250 i have a clear ecological
conscience thanks to the intelligent WIDRIVE machine
management system, for WIDRIVE not only significantly
reduces diesel consumption rates but also minimizes
exhaust gas emissions, noise levels and engine vibrations.
The machine’s dual-engine concept is a vital element of
the WIDRIVE system as it offers the unbeatable advantage
of simply shutting down the second engine, when not
needed, for fuel economy. Exhaust and noise emission
levels are reduced at the same time – to keep the environment intact.
The W 250i delivers a clean
job in terms of efficiency and
environmental compatibility
Reduced diesel
­consumption
Economical operation, low environmental impact, efficiently
performing staff
The two engines installed in the W 250 i comply with
the strict specifications of exhaust emission standards
EC Stage 3b / US Tier 4i.
Noise emission is reduced by the efficient soundproofing of the engine compartment and anti-vibration
engine support.
The effective VCS extraction system used to evacuate fine material particles reduces dust emission in the
area of the milling drum housing.
Different engine or milling drum speeds, which can be
selected in line with the milling job, ensure exceptionally low fuel consumption.
34 // 35
Wirtgen America Inc.
6030 Dana Way · Antioch, TN 37013, USA
Phone: (615) 501-0600 · Fax: (615) 501-0691
Internet: www.wirtgenamerica.com
Illustrations and texts are non-binding and may include customized fittings. Subject to technical changes.
Performance data depend on operational conditions. No. 2176174 14-10 EN-09/12 © by Wirtgen GmbH 2012 Printed in Germany
Illustrations and texts are non-binding and may include customized fittings. Subject to technical changes.
Performance data depend on operational conditions. No. 2311330 23-10 US-04/13 © by Wirtgen GmbH 2013 Printed in Germany