WIRTGEN CHINA NEWS The Magazine for Wirtgen Group China Clients Edition 06

October 2010

Road and Mineral Technologies

Editorial

content

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010 was a year of big challenges for Wirtgen China. The unexpected strong surge of machine orders from you, our valued customer, of course made us very happy, but on the other hand stretched our whole organisation here in China to the limits. I’m fully aware, that many of you had to wait for the new Wirtgen, Vögele and Hamm machines longer than expected. We tried our best to overcome this period by supplying bridge machines and renting machines for you from other customers. Nevertheless, some of you were not really served as well as could be expected by Wirtgen China; my sincere apologies to everybody who was affected. At the same time I want to express my greatest thanks to you for bearing with us during this challenging time.

-TECHNOLOGY AND COMPANY INTRODUCTION Recycle complete lanes in a single pass: Wirtgen 2200 CR now on offer with 3.80 m working width ----

04

S 3000-2 New Flagship from VÖGELE ------------

06

Hamm GRW 280: Introduction to the new generation of rubber-wheeled rollers ------

10

Introduction of Wirtgen Group Member Kleeman ---

14

-JOB REPORT Hot in-place Recycling Yingkou 2010 -------------

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-NEWS TICKER

Ulrich Reichert, CEO and Managing Director of WIRTGEN (China) Machinery Co. Ltd.

We made a lot of changes and improvements this year in our Langfang factory in order to be perfectly well prepared for the future, which looks very bright for the Wirtgen Group in China.

Wirtgen (China) Machinery Co., Ltd. Wuhu Branch Company Officially Opened on October 11, 2010 ------------------ 30 Tianjin Demo------------------------------------------

We enlarged our production facility in Langfang, built two new paint shops and increased personnel and the area for quality inspection. Our new Quality Inspection Centre will ensure that Wirtgen Group products “Made in Langfang” are no different than Wirtgen Group products “Made in Germany”.

Wirtgen China Awarded CNY20 Million Contract For Hamm Compactors ---------------------------------- 32 2nd Nationwide Seminar on New Equipment & Material for Municipal Facility Maintenance Management ------------ 33

Additionally I’m proud to announce the opening of our new Service Centre East China in Wuhu City. After 5 years successful experience with our Langfang Service Centre, we are now ready to extend this important service to the eastern part of China. We are coming ever closer to you, our valued customer. Last, but not least, it’s Bauma China time again. The 5th Bauma China will be the biggest and most important construction machinery show in Asia and is now on the same level as Bauma, Munich and Conexpo in Las Vegas. I still remember our first steps 10 years ago were we all were surprised by the huge visitor attendance and even more by the high quality of visitors. It was the first time in my career in Asia that I could say, this was really a good and valuable exhibition. Today Bauma China is established as one of the three leading world construction machinery shows. We welcome all of you our valued customers to join us in Shanghai from November 23 – 26. You can find us at booth 136/436 in Hall E2, well protected from cold winds and rain in the well-known cosy atmosphere of the Wirtgen family. There will be no shortage of food and drink and we will be able to show you a lot of new technical developments of the Wirtgen Group. The highlight of the Bauma we are going to show on the Wirtgen booth will be the introduction of our newest Group family member KLEEMANN. Kleemann is the specialist for mobile crushing and screening equipment. We are going to exhibit the Kleemann mobile impact crusher MR110Z EVO, which is the newest technology of mobile impact crushing in the Kleemann range of products. Come and be our guests!

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Wirtgen (China) Machinery Co. Ltd. No. 99 Chuang Ye Road, Langfang Economic & Technical Development Zone, Langfang, Hebei Province 065001, P.R.China Tel: (0316) 607 3232, Fax: (0316) 607 3234 Email: [email protected] www.wirtgen-china.com.cn

-JUBILEE 10 Year Jubilees in China - ------------------------------

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-MEDIA SECTION DESIGN & PRINTING: East Line Advertising, Beijing www.eastlineadvertising.com

© 2010 WIRTGEN CHINA All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means - electronically, by mechanical photocopying, recording or otherwise - without the prior written permission of the publisher.

Economical Efficient and Environment Friendly of Cold Recycling with Foamed Bitumen ------------------ 34 Hangzhou Research Shows Germany’s Wirtgen Recycling Technology Makes Major Emission Reductions ------------- 37 The favorite products of 100 people in the industry ---------- 38

The publishers and all those associated with the publication cannot accept legal responsibility for any errors however caused.

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TECHNOLOGY

Recycle complete lanes in a single pass: Wirtgen 2200 CR now on offer with 3.80 m working width

Exceptional flexibility has always been a hallmark of the 2200 CR: the four-tracked cold recycler with a standard working width of 2.20 m for the in-situ cold recycling of roads is capable not only of recycling the pavement material but also of placing the recycled mix again immediately by means of an integrated paving screed. Both water-cement slurry and bitumen emulsion or foamed bitumen can be added to the recycling process. In addition, the high-performance cold recycler can also be operated as a road milling machine. The 2200 CR is now available with a milling and mixing drum unit featuring a working width of 3.80 m and a milling drum capable of working in the direction of travel, that is, in the so-called down-cutting mode. In-situ cold recycling in the United States using a 2200 CR: the milling and mixing drum assembly now offers a working width of 3.80 m, which permits one lane of this federal road to be rehabilitated in a single working pass.

Extra-wide working width boosts efficiency

the milled asphalt material. In certain markets,

T

he advantages of the wider working width are quite obvious: complete

this requirement is sometimes part of the tender

traffic lanes can be rehabilitated quickly and economically in a single

specification. By simply exchanging the drum

machine pass. This results in an effective reduction not only of the machine’s

gearbox, the 2200 CR is easily converted to work

on-site time but also of the related operating costs in large-scale rehabilitation

in up-cutting mode whenever required.

projects. The new drum assembly offers a maximum working depth of 150 mm for the recycling of damaged asphalt layers. The 2200 CR is equipped with a

The new 2200 CR with 3.80 m working width and

spreading auger and Vögele paving screed type AB 375 T, enabling it to place

down-cutting feature has successfully operated in

and pre-compact the recycled mix immediately in an in-situ process.

several in-situ cold recycling projects in the North American market. In addition, there is further

With regard to the addition of binding agents, the new 2200 CR model

potential for use also in other road construction

offers the full range of options in cold recycling: the microprocessor-

markets, for instance, in Europe. The dual machine

controlled injection system is capable of drawing water, hot bitumen

design also applies to the new 2200 CR model:

for the production of foamed bitumen, and bitumen emulsion from a

the unit can be converted to a road milling

preceding tanker truck, injecting it in precisely metered quantities into the

machine at any time to ensure high machine

mixing chamber of the 2200 CR.

utilization.

Down-cutting and up-cutting in a single machine The down-cutting process, in which the drum of the 2200 CR rotates in the machine’s direction of travel, permits better control of the size of

4

With the new down-cutting feature, the milling drum of the 2200 CR rotates in the direction of travel, achieving precise control of the size of the milled asphalt material.

5

TECHNOLOGY - INNOVATION

S 3000-2 New Flagship from VÖGELE

is capable of paving large quantities of mix to the highest quality standards. This is not merely a theoretical value, as the technical parameters for material handling prove. The paver comes with a material hopper holding 17.5 tonnes. The conveyor tunnel is 1.62m wide and 40cm high. Combined with conveyors, for which separate hydraulic drives are provided, and high-performance augers, large quantities of mix can be transferred in front of the screed in the shortest possible time.

Heavy-duty equipment for very abrasive materials High material throughput is important not only when building asphalt pavements up to 16m wide without joints. It is also

VÖGELE offer a Heavy-Duty Kit (option) for particularly abrasive applications. The kit includes wear-resistant, reinforced guards for the conveyor tunnel and modified auger blades to counteract abrasive wear during sub-base and base course construction.

immensely important for sub-base paving jobs where large

as an option, which effectively counteracts abrasive wear with

quantities of non-bituminous materials are involved.

reinforced guards for the conveyor tunnel and the chassis, and modified auger blades.

SUPER 3000-2 is ideally equipped for this kind of work. The bottom plates of the conveyors and the return pulleys for

PowerPack for the SUPER 3000-2

conveyor chains are of highly wear-resistant design, even in

Needless to say that the VÖGELE machine comes with a powerful

the standard version. If the machine is used primarily for sub-

drive system for tough jobs like these. The paver is powered by an

base and base course construction, a Heavy-Duty Kit is available

ultramodern 6-cylinder DEUTZ diesel engine type TCD 2105 V06 4V with a maximum power output of 300kW at 1,800 rpm. Fuel consumption is very low compared to other large pavers in this class, amounting to no more than 217g/kWh. The engine

The innovative tracked SUPER 3000-2 takes the lead of the world's largest fleet of road pavers.

complies with current emission standards COM 3a and EPA3.

Innovative tracked paver SUPER 3000-2 leads

Due to its wide range of applications, the new VÖGELE model is

Like all “dash 2” generation

the world's largest paver fleet.

ideal for construction or rehabilitation of motorways, highways,

pavers, SUPER 3000-2 can

A

trunk roads and airports.

also be operated in "ECO

t Bauma 2010, Joseph VÖGELE AG will be presenting their

Mode" to further reduce fuel

newly developed SUPER 3000-2. The tracked paver features

the innovative and user-friendly "dash 2" technology from

Paving bituminous and non-bituminous

consumption and noise levels

VÖGELE, raising it to the very top of the class of large pavers in

mixes over large widths and in thick

(282kW at 1,500 rpm). With

terms of performance, technological lead and ergonomics. With

layers

a capacity of 600 litres, the

a laydown rate of up to 1,600 tonnes per hour and pave widths

The modern technical concept underlying the SUPER 3000-2

paver's fuel tank is ample

up to 16m, large-scale construction projects can be completed

allows road construction and civil engineering contractors to

enough to see it through

in the shortest possible space of time and large widths can be

cover an extremely wide range of paving applications. With a

long working days without

paved without joints. The machine has a basic width of 3m.

laydown rate of up to 1,600 tonnes per hour, the new machine

refuelling. With a laydown rate of 1,600t/h and pave widths up to 16m, large-scale construction projects can be completed within a short period of time and pavements can be built in the greatest possible widths.

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TECHNOLOGY - INNOVATION

The paver is equipped with a high-performance transfer gearbox,

Latest version: the ErgoPlus® operating

supplying all hydraulic systems with exactly the power needed

concept

for the job in hand. The generator is directly flanged to the

SUPER 3000-2 is equipped with the latest version of the

transfer gearbox, which provides for a maintenance-free drive.

ErgoPlus® operating concept featuring a particularly high-

The high generator output of 65kW guarantees rapid electric

contrast display. All information is clearly legible on the display

screed heating.

panel, even when subject to reflections from sunrays.

High power requires optimum cooling. VÖGELE traditionally

The ErgoPlus® concept is made up of several components focusing on

install an efficient, low-noise cooling system. SUPER 3000-2 is

clearly structured operating consoles allowing the user to learn and

equipped with a cooler assembly for engine coolant, charge air

access all machine functions quickly and intuitively. Four different

and hydraulic oil, making it WAT-compliant and allowing it to be

operating modes can be selected at the push of a button: “Neutral”, “Job

used without restrictions in all climate zones worldwide.

Site Mode”, “Positioning Mode” and “Pave Mode”. A very useful “Memory” feature stores last settings when exiting “Pave Mode” and settings are

Separate drive and electronic control provided for the crawler

retrieved automatically after the paver’s move on the job site.

tracks ensures constant tracking and precise turning of radii.

A new SB 300-2 Fixed-Width Screed has been developed to match the SUPER 3000-2’s wide range of applications. The screed can be built up to a maximum pave width of 16m.

Yet ErgoPlus® offers more. The system guarantees an unobstructed

New SB 300-2 Fixed-Width Screed for pave

view of all vital points on the paver. Everything is within the

widths up to 16m

operator's field of vision: supply of mix, outer edges of the screed and

A new SB 300-2 Fixed-Width Screed has been developed to

spreading of material in front the screed. All that can be monitored

match the SUPER 3000-2 paver’s wide range of applications. The

comfortably in a seated position. And the rear of SUPER 3000-2 is

screed can be built up to pave widths up to 16 metres. Based

sloped, which allows an excellent view of the auger tunnel.

on their design, VÖGELE Fixed-Width Screeds are ideal for highquality paving in constant widths. For jobs requiring paving in

The paver operator’s platform is very spacious and provides

varying widths, hydraulic bolt-on extensions (HE) are available.

sufficient storage space, as well as convenient access to the

The hydraulic extensions allow infinite variation of the pave

paver’s service points. Thanks to the ErgoPlus® concept, the

width within a range of 0.75m on either side of the screed.

operator’s seat can be swivelled out beyond the width of the paver together with the console, and positioned exactly in

The SB 300-2 screed features effective electric heating. The

keeping with the operator’s personal needs. In this way, a safe

screed plates are heated evenly across the maximum pave width

and ergonomically optimized workplace is available. A hardtop

of 16m. For electric screed heating, a powerful 3-phase A.C.

of glass fibre reinforced polymer material, with extending

generator is installed delivering 65kW.

sunshades, protects the operator whether rain or shine, even with the seat swung out. SUPER 3000-is equipped with the latest version of the ErgoPlus® operating concept featuring a high-contrast display. The legibility of paver and screed data on the display panel is greatly improved, even when subject to reflections from sunrays. Everything is within the operator's field of vision: supply of mix, outer edges of the screed and spreading of material in front of the screed. All that can be monitored comfortably in a seated position. 8

If higher variability is required on site, SUPER 3000-2 can also be combined with an AB 600-2 Extending Screed. This screed handles a maximum pave width of 9.5m. 9

TECHNOLOGY - INNOVATION

Hamm GRW 280: Introduction to the new generation of rubber-wheeled rollers

W

hat is so revolutionary about the new rubber wheeled

roller" with the iF design award 2010 as well as the red dot

rollers from Hamm? Well, actually everything. You

design award 2010, two of the world's most important design

can see it at first glance. It has a completely new cab. In a

prizes, for its accomplished ergonomics and functionality.

new position. On a newly designed, asymmetrical frame. The innovations with respect to ballasting, the drive concept and the

Flexible operating concept

operating philosophy are not recognisable from the outside. But

The most important new feature for the operator is the large

one thing is soon clear. This machine is full of new features that

driver's compartment. Two seats, two steering wheels and two

will make compacting better and more convenient.

control consoles in the cab used to considerably restrict freedom of movement. Now, there is only one driver's seat. Optionally,

The future-oriented concept behind the GRW has already

it can be moved and pivoted at the side towards the machine's

convinced leading international product designers. In early

outer edges and along with the console.

March 2010, they awarded the "new-generation rubber-wheeled

Forty years ago, Hamm created a milestone in road construction with the first all-wheel drive, allwheel steering rubber wheeled roller. Now, the roller manufacturer is again presenting a sensation in this sector to the trade. The new GRW 280 rubber wheeled roller inspires with its revolutionary and future-oriented overall concept. The newly developed series offers excellent compacting quality, plenty of driving comfort, extraordinarily good visibility conditions and the highest of safety standards. Innovative and intuitive: for the first time ever, drivers have a view on the wheels from the newly designed cab of the Hamm GRW 280, allowing them to oversee the compaction process at all times. As an option, the seat can be shifted up to the outer edge and can be rotated by 90° in both directions. With an adjustable steering column and the freely adjustable steering wheel, each driver can optimally set up his individual work space. 10

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TECHNOLOGY - INNOVATION

Hamm is also taking new approaches in terms of the operating

Hamm utilized this fact in the design of the new GRW and

Simple transport

amounts of ballast depending on the basic weight. The outer

concept. Operation and display elements are positioned on the

designed the machine frame in symmetry with the wheelsets,

No matter how much the relevant version of the GRW 280

dimensions are identical for all variants.

console and thus always in the driver's field of vision. Also, the

i.e. asymmetrically. This intelligent design offers one crucial

weighs, its machine height is always under 3 m. This not only

speed is no longer controlled by an accelerator pedal in the foot

advantage because, for the first time ever, the driver can see

simplifies transport on a low-bed trailer, but also working

For all types, the "width over tyres" is 1830 mm. The machine

space. The direction and speed are now controlled by joysticks,

the wheels on all outer sides. Moreover, viewing channels in the

under bridges, protrusions or other overhangs.

has a maximum operating width of 2084 mm.

which signifies a considerable boost in convenience for the

frame structure offer a view of the tyres of the outer wheels. The

driver. In total, the new operating concept corresponds to that

viewing channels are additionally lit to enable work at night.

Technical data of the machines

The GRW 280 is equipped with an environmentally-friendly

of a tandem roller. Thus, cost-effectiveness is increased because in the future, operators can switch flexibly between roller types

Flexible loading

without any adaptation time.

One important quality criterion of rubber wheeled rollers is the

The new GRW 280 rubber wheeled roller is being launched in the market with various basic weight ratings (10 t, 12 t, 16 t, 20 t, 24 t, 28 t). The machines can accommodate different

4-cylinder engine with a 100 kW output and a common rail injection system. It fulfils the requirements of EU stage III and US-EPA tier III.

ability to be able to swiftly modify the machine's weight. The

Driving comfort par excellence

GRW 280 offers large ballast spaces between the wheelsets

A hydrostatic rear-axle drive for the GRW 280 will allow for

and a serrated frame that is open in the downward direction.

higher speeds during transport and compaction. To match it,

It can be filled with steel or concrete using a forklift truck.

the newly conceived steered axle at the front with disk brakes

Therefore, the GRW 280 can easily take a total ballast of

ensures the necessary braking force and thus considerable

10 to 28 tonnes and thus covers all operating options. At

safety when braking suddenly, even with maximum load. In

the same time, this concept has clearly reduced the loading

total, sensitive control of the rear axle and an extraordinarily

effort. Incidentally: regardless of how much ballast a GRW

good view of the site and the wheels' edges enable high

280 carries, thanks to the intelligent ballasting system the

compaction quality.

distribution of weight to the front and rear axles always remains constant.

Always an unobstructed view – also of the wheels

Perfect maintenance – definitely

A totally redesigned frame, an innovative arrangement and

The generously dimensioned brake system ensures the higher-

the glazed design of the cab are the basis for perfect visibility

than-average safety standard during driving. When the machine

conditions in the new GRW. The cab with integrated ROPS

is idle, the access steps to the cab afford additional safety.

is located in front of the centre of the machine, while the

They are integrated in the outer contour and can be folded out.

longitudinally installed engine is situated in the rear section of

Thus, they offer convenient and safe access to the maintenance

the machine. This ensures an excellent view of all relevant points.

platform next to the engine. In this position, they lie on the

The view of the area directly in front of the front axle is also

outer contour, but constitute a visual interference contour. As

unobstructed. Here, hydraulic cylinders for level compensation of

a result, after completing maintenance work, the operator is

the front suspension used to protrude out of the frame into the

reminded to swivel the access steps back into position. At the

driver's field of vision. They have been replaced with two swing

same time, the maintenance accesses, which would otherwise

arms between the front pairs of wheels. They require very little

have to be carried along separately, are dispensed with.

space and are not visible to the driver.

Hamm has also made provisions for efficient maintenance. All maintenance points are on the engine's right-hand side. They

The track offset between the front and rear wheelsets is

are illuminated well by the cab lighting and so the drive unit can

one of the basic features of the rubber wheeled rollers.

be inspected even in darkness. Compact, powerful and uncompromising: the innovative GRW 280 by Hamm with an operating weight of up to 28 t convinces with its harmonious overall concept. A fresh design and numerous ingenious details ease the work for machine operators, and ensure optimum compaction results.

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COMPANY INTRODUCTION

Introduction of Wirtgen Group Member Kleeman Kleemann then and now.

for the professional user. Classic German engineering and

K

leemann looks back on a history of over 150 years. At

craftsmanship is built into aggregate processing equipment

the end of 2009 the company relocated to Stauferpark

from Kleemann. As a firm with deep roots in the German

industrial park in Göppingen. The high-tech site is very

manufacturing tradition, Kleemann draws strength from

impressive with its state-of-the-art manufacturing plants and

the employees of its native region of Swabia, in southwest

Kleemann is clearing the way for the future. With this comes

Germany. Hardwork and an inventive imagination have

the integration of Kleemann into the global network of sales

always been the driving factors for the economic success

subsidiaries and retailers of the Wirtgen Group. An export

of the region.

quota of over 80% requires absolute flexibility and the ability to adapt to the different needs of international customers, as

Another important component of our superior production

well as the guarantee of fast and reliable aftersales service.

process is the first-class suppliers in our vicinity, on whom we rely. In our modern new plant, short channels and

We survive on the international competitor front thanks

maximum flexibility ensure smooth assembly. The end result

to our innovation and the quality of our products. Here

is crushing and screening plants from Kleemann of the

the main focus is on the economic benefit of the product

highest quality.

1857

1902

An overview of our 150-year history. 1857

1878

Company is founded in Stuttgart-Obertürkheim by

1920

There is a total of almost 300 employees at the two sites.

Ferdinand Kleemann. An industrial company for

The first stationary plants for processing natural stone are

agricultural equipment and machines develops from

exported. The development of the company is interrupted

what is originally a filling and cutting business.

due to World War II and the heavy destruction.

Takeover of the company by Ferdinand‘s four sons.

1946

From now on ”Kleemanns Vereinigte“ concentrates on

Heinrich Kleemann is the son-in-law of entrepreneur

the manufacture of fruit-pressing machines, processing

J.G. Hildenbrand from Göppingen Faurndau.

plants for the stone industry, hydraulic lifts and plants for halls and swimming pools. At this time the company

1902

has more than 350 employees.

Heinrich Kleemann becomes owner of the merged companies Kleemann and Hildenbrand. This results in ”Kleemanns Vereinigte Fabriken Obertürkheim und

1965

The product range reverts back to processing

Faurndau“. Fruit-pressing machines, elevators, ball

technology. Stationary plants for processing natural

mills, pumps, stone crushers, brick machines, diggers,

stone become the day-to-day business.

transmission systems, sorting trommels, finish-rolling plants and electric lifts are produced.

1979 Relocation of the company from Obertürkheim to Faurndau.

1946 14

15

COMPANY INTRODUCTION

16

17

COMPANY INTRODUCTION A good product does not come about by chance. working relationship between the service department and

Production with a future

Thanks to the investment in new, ultra-modern machines,

customers. Therefore, maintaining sufficient stocks of all

The production sites have constantly grown with the

the production depth can also be increased, which not only

the important spare parts and wearing parts is essential.

success of the company. In line with this growth the

allows much more flexible production planning, but also

The immediate availability of parts saves time and money

company took the big step in 2009: The move to the new

increases the quality of the products.

for the customer, and we know parts availability is an

site in the Göppingenbased Stauferpark. On over 130,000

important – and often decisive – element of the purchase

square metres, the three previous production facilities have

Service after the Sale

decision. That‘s why the supply of Kleemann spare and

been combined into one high-tech factory. As a result, the

Every good product needs good service. Deadlines

wearing parts is optimized and guaranteed through

production process is much more efficient and capacities

and competitive pressure, as well as working under

Kleemann‘s new warehouse, and the extensive global

can be increased considerably.

difficult operating conditions, require an excellent

network of Wirtgen Group and its retailers.

The new, ultra-modern warehouse not only benefits production, but also guarantees the availability of spare and wearing parts.

It depends on the detail: The core components are manufactured with high inhouse production depth.

In the case of all high-tech projects, the most important feature of any successful production: Well-trained and highly motivated employees. 18

19

COMPANY INTRODUCTION

One reason Kleemann technology stays ahead of the competition is its continuous

confirmed in practice? A fixed component of any new development

contact with customers, and its response to their needs.

at Kleemann is an extensive test phase, sometimes using several prototypes. These are put to the acid test at the most varied conditions and in the most diverse applications.

Technology and innovation

the latest 3-D animation programs, as well as technical

It has long been known that Kleemann is never satisfied with the

calculation software.

status quo. For decades Kleemann has been consistently developing new innovations, which benefit the overall performance of the

Here Kleemann not only makes use of its in-depth

plants. The largest recognition often comes from the competition

technical knowledge and experience of many years,

as time and time again ideas for a later time are to be found there.

but also uses customer feedback. Because he who has constant contact with his customers, also knows their

Kleemann develops through the use of state-of-the-art

needs and requirements.

technology. From the small individual components to the complete plant, new solutions are designed and tested using

The exciting moment always comes after the theoretical development phase: Is what was developed in theory

The new impact crusher, type SHB of the Mobirex EVO series.

Then, in-house testing is followed by field tests by our customers. Our customers‘ opinions and feedback play a big role in our final design. Only when the tested products satisfy the high Kleemann criteria with regarding output and economy can serial production begin. The ever complex requirements for stationary and mobile processing technology today requires modern equipment. Three-dimensional designs are part of day-to-day business, along with technical calculation software and modern PPS programs. Active double-deck grizzly for efficient screening of fines

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21

JOB REPORT

HOT in-place RECYCLING YINgKOU 2010 LIAONING PROVINCE

L

iaoning Province is situated in the south of northeast China. Liaoning is in a

temperate zone and adjoins Jilin and Hebei provinces and Inner Mongolia Autonomous Region, and is bordered along the Yalu River by the Democratic People's Republic of Korea (DPRK). On an area of approx 150.000 sq km Liaoning has a population of approx 43 Mio People.

THE BINHAI ROAD The Binhai road is the longest road directly situated on the yellow sea. The road is linking Dandong to Huludao and is crossing another 4 big cities of Liaoning Province with a length of

YINGKOU

1.443 Km and construction starts in 2003 and the complete road was finished in 2009. As the area of Yingkou is one of the north tourist attractions, the road experienced heavy traffic during the last seven years in that particular section and was ready for maintenance in year 2010.

YINKOU CITY Yingkou city is situated in south-western Liaoning Province, neighbouring Dalian, Dandong, Anshan and Panjin within the province. It lies in the estuary area of the Liaohe River to the Bohai Sea, facing the Liaodong Bay in the west, about 170 kilometres from Shenyang, the capital city of Liaoning. The City of Yingkou has a population of approx 2.3 Mio People.

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JOB REPORT

THE BINHAI ROAD

HOT RECYCLING WITH THE WIRTGEN RECYCLING TRAIN RX 4500 / HM 4500 Hot recyclers are eminently suitable for rehabilitating surface courses within extremely short periods of time. The method is suitable for use with all asphalt pavements, whether motorway or urban road. The damaged asphalt layer is gently heated to a maximum working depth of 6 cm by panel heating machines and by the infrared heating elements of the hot recycler (Remixer) itself. The heated bituminous pavement is then scarified by a rotating scarifier unit. With the Remix method,

The Yingkou City Communication Bureau was looking for a

convinced of the Wirtgen Hot Recycling Technology that

quick, environmental friendly and cost efficient method to

they decide to buy a complete Hot Recycling Train in 2010 ,

carry out the maintenance. After their 2 years research they

consiting of one Hot Recycler RX 4500 and 2 Pre Heating

decided to carry out the maintenance with the Wirtgen

Machines HM 4500. After this machines arrived in June

Hot Recycling technology. The first section had a length

2010 and a exentsive training was carried out by Wirtgen

3.3 km with an total area of approx 99.000 sqm. The job

China they scheduled the start of the Job for 15th of July.

was awarded to the 2nd Branch of the Yingkou Highway

The completed period for the Job was scheduled for 25

Engineering Company which belongs to the Yingkou

days. Of course the investment was made for a lot of other

Highway Bureau. The Yingkou Highway Bureau was so

up coming projects in the Yingkou City area.

24

the asphalt pavement is homogeneously mixed with corrective aggregate and / or hot bitumen in a twin-shaft compulsory mixer. A paving screed then places the new asphalt mix again true to profile. The Remix Plus method also recycles the existing asphalt pavement. With this method, a second layer of virgin mix is paved on top of the recycled layer in one single machine pass. The result is a 100% hot recycled layer overlaid with a new surface course. The entire recycling operation is carried out in one single work step and as a moving job site directly on the pavement to be recycled.

25

JOB REPORT THE KEY COMPONETS OF THE RECYCLING TRAIN RX 4500 / HM 4500

The Hot Recycler RX 4500

Infrared Pre Heater HM 4500

Variable scarifier unit 26

Variable scarifier unit

The damaged road surface is heated by individually engageable infrared heating elements.They are operated with propane gas that is carried on the Wirtgen machine HM 4500 in gas tanks. Bitumen is carried on the machine in a heated binding agent tank. A microprocessor-controlled pump delivers the bitumen via heated feed lines from the recycler's tank to the compulsory mixer where it is injected in precisely metered quantities. 27

JOB REPORT THE KEY COMPONETS OF THE RECYCLING TRAIN RX 4500 / HM 4500

KEY BENEFITS OF THE WIRTGEN HOT RECYCLING TECHNOLOGY

The machine's sensor-controlled spreading auger distributes

1) Hot recycling involves the in-situ rehabilitation of a road

the recycled mix evenly in front of the paving screed. A

pavement while making full use of the existing asphalt

Vögele screed equipped with tamper and vibrator places

material. This technology saves natural resources and is

the recycled pavement material in accordance with the

therefore extremely beneficial to the environment.

specified profile and produces it to a compact layer. 2) Hot recycling mostly requires only small quantities of new aggregate or binding agents to improve the functional

The new Asphalt surface is compacted by two HAMM Rollers HD O120V equipied with the HAMM Oscillation technology. Learn more about Hamm and the Oscillation technology at www.wirtgen-china .com.cn or www.hamm.eu.

28

3) Hot recycling projects can be carried out in moving traffic. These travelling job sites cause only minor disruptions to traffic. The lane next to the recycler can be used by traffic during the entire hot recycling operation. 4) Hot recycling is economical, for it saves between 20% and 30% in terms of construction time, transport costs, energy and natural resources.

properties of the existing construction material. It is Compaction

therefore a very cost-efficient method requiring only a small number of transports.

5) According to the energy consumption by road authority, hot recycling application in this road can save 24.5% energy compared to conventional milling and paving method.

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NEWS TICKER “Wirtgen (China) Machinery Co., Ltd. Wuhu Branch Company” Officially Opened on October 11, 2010 Close to our customers With the fast development of China’s economy, especially the drastic increase of market demand on high-quality construction machinery, Wirtgen China has witnessed the most successful year in 2009 since its operation in China and in 2010, the growth of business continued for Wirtgen China on a very high level.

Located in the middle and lower reaches of Yangtze River, Wuhu is a city full of vigor and energy.

Factory of “Wirtgen (China) Machinery Co., Ltd. Wuhu Branch Company”.

Hotlink: To better meet the product and service demand of Wirtgen customers, especially the customers in East China (Jiangsu, Shanghai, Anhui, Zhejiang, Henan etc.), Wirtgen China decided to set up a branch company in Wuhu. Officially established on July 21st 2010 in “WUHU HI-TECH INDUSTRIAL DEVELOPMENT ZONE”, with the total investment of RMB 10 million (Phase I), “Wirtgen (China) Machinery Co., Ltd. Wuhu Branch Company”, shall serve comprehensively as Parts Center, repair and overhaul Workshop as well as the “New Machine Display” at the first stage, and the 2nd production base in China with further investment at the second stage as planned in the near future.

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Wuhu, located in the middle and lower reaches of Yangtze River, is a city with a long history of more than 2000 years. It covers an area of 3,317 km2 with a population of nearly 2,300,000. The urban area covers 720 km2 with 1,005,000 residents. Wuhu enjoys convenient transport and functional logistic services. Wuhu Port is capable of berthing cargo vessels of 10,000 tons. It is centered in rail and road networks of East China. Moreover, it only takes about an hour’s drive to Nanjing Luokou International Airport and Hefei Luogang Airport respectively.

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NEWS TICKER tiANJIN DEMO In the morning of July 30 th , 2010, “Demo of Small Construction Machinery for City Roads” was jointly held by Tianjin Municipal Roads Industry Association and the Tianjin dealer of Wirtgen China – TIANJIN ZHONGLANG INTL. TRADING Co. Ltd. The aim of it is introducing advanced construction machines for finishing of projects with high efficiency and high quality, so as to adapt to the rapid development of urban roads. More than 100 participants coming from companies of Tianjin highway and municipal including leaders, experts and technicians joined the Demo. Mr. li Guomin, the standing deputy director of Tianjin Municipal Roads Industry Association and Madam Zhang Yingbao, the General manager of TIANJIN ZHONGLANG INTL. Co. Ltd. gave addresses. Wirtgen China gave a live demonstration using special city roads suitable W 100 cold milling machine, S 1103-2 paver and HD 12 VT combination roller with a perfect working result and fully appreciated by the participants.

Wirtgen China Awarded CNY20 Million Contract For Hamm Compactors China International Water and Electric Corp. has awarded Wirtgen China a contract, worth CNY 20 million, for 24 Hamm Single Drum Compactors to be used on the construction of the dam complex at Upper Atbara in Sudan. The dam complex project is located in eastern Sudan and has a total contract value of USD 838 million US dollars. The project is financed by the government of the Sudan, and the engineering and construction of the complex is scheduled to last about 6 years. his is the largest single project contracted to Chinese companies in Sudan at the moment. The project is composed of two dams. The main functions of which are irrigation, water supply, and power generation. After completion of the project, the dam complex will form a reservoir storage capacity of about 3 billion cubic meters. It will irrigate an area of about 500,000 hectares, and 7 million people will benefit from the irrigation. It also provides drinking water for 3 million people. Its power generation capacity will supply 1 million people. The contract is for the following equipment: Nine units of Hamm compactor type 3520 with an operating weight of 20 tons; nine units of Hamm compactor type 3520 P (Padfood shells) with an operating weight of 20 tons; and six units of Hamm compactor type 3412 with an operating weight of 12 tons.

About Hamm compactors Series 3000 Hamm's intelligent technology optimizes the machine's 32

functions and thus provides for an economic use of fuel and lubricants. Hamm Series 3000 increases productivity, works more economically, saves on Diesel consumption, and extends the life span of your machinery.

9 units Hamm compactor type 3520 with an operating weight of 20t

9 units Hamm compactor type 3520 P( Padfood shells) with an operating weight of 20t

6 units Hamm compactor type 3412 with an operating weight of 12t

2 nd Nationwide Seminar on New Equipment & Material for Municipal Facility Maintenance Management On April 26th – 28th 2010, “2nd Nationwide Seminar on New Equipment & Material for Municipal Facility Maintenance Management” was held in Xi’an, Shaanxi Province, in the light of the Guidelines of “Green Environmental Protection, Energy Saving, High Efficiency, Safe and Convenience” by Ministry of Housing and Urban-Rural Development (MOHURD) to expedite scientific and technological progress on municipal engineering industry, and share experience on the successful application of advanced municipal engineering technology and equipment, so as to promote the application of new technology, material and equipment in municipal industry.

About the Wirtgen Group The Wirtgen Group is an internationally operating group of companies in the construction machinery sector incorporating four traditional brands: Wirtgen, Vogele, Hamm, and Kleemann. As a technological leader, they offer their customers mobile machine solutions for road construction and road rehabilitation, as well as for mining and processing minerals. The Wirtgen Group has been present in China for more than 20 years and, since 2004, has operated an assembly factory in Langfang, Hebei Province. With more than nine branches and 250 employees, Wirtgen China are always close to their customers.

A b o u t Ch i n a I n t e r n at i o n a l W at e r a n d Electric Corp. China International Water and Electric Corp. (CWE), a whollyowned subsidiary company of China Three Gorges Corp. (CTGPC), has been practicing water resource and hydropower engineering for 54 years. The company has the reputation of being one of the first few state-owned corporations approved since the 1980s by the China State Council to undertake international contracting projects. Over the years, CWE has been the backbone of Chinese companies engaged in overseas engineering and construction. By the end of June, 2009, it had completed over 700 international contracts in more than 60 countries and regions, with a total contract value exceeding USD7.5 billion; thus contributing tremendously to the Chinese enterprises’ “Going Global” strategy. CWE is endowed with the qualifications for overseas projects contracting, man-power service cooperation, and construction of set economic aid projects (A Class) issued by China's Ministry of Commerce. Meanwhile, it is also listed on the highest rank of contractors in Hong Kong SAR for the following project types: buildings, ports, roads, channels, land leveling, and water related work. CWE has always been nominated as one of the Double Top 60 Chinese contractors for engineering and design and also as one of the Top 500 Chinese Construction Enterprises and Service Enterprises.

This presentation seminar was organized by China Municipal Engineering Association, Professional Committee of Municipal Facility Management. Delegates from Urban Service Bureau of over 70 cities and more than 30 well-known municipal equipment manufacturers and material suppliers participated the seminar to promote the new technical processing with advanced equipment. A presentation was made by Xi’an Municipal Management Bureau on the “Four New” application in Xi’an Municipal construction and maintenance. The machines from Wirtgen Group, such as Milling Machines, Cold Recyclers, have played important roles in the renovation of the roads along the north-south axis of Xi’an, which has put the concept of “energy saving & emission reducing” into practice to result in significant economic and social benefits.

10 Year Jubilees in China

George Gao joined Wirtgen on 1st of August 2000. Senior Sales Manager

Mason Zhang joined Wirtgen on 1st of December 2000. Senior Sales Manager 33

media section Saving Half of Bitumen Consumption in Xitong Expressway Improvement and Widening

Economical Efficient and Environment Friendly of Cold Recycling with Foamed Bitumen

cold recycling” was supported by technology finance from

becomes millions of tiny articles spread over fine material

Ministry of Finance, and was declared to be technology

and form a slurry. After mixing and compaction, it will bind

development project of Shaanxi province. When this study was

the coarse articles and make the pavement course stable.

finished, the annual cost saving on material through recycling

Compared to traditional method, foamed bitumen technology

will be RMB 1,500 million.

has advantages like: long time storage of mix, higher shear strength, less sensitivity of mix to water. On ramp of Xitong

n June 28th, 2010, after 53 days of closing, the south

O

These years, foamed bitumen technology becomes more

half of Tongguan to Xian section of Lianhuo Expressway

and more popular in both China and abroad. It provides a

improvement and widening project was reopened with four lanes

new method for modernized cost effective repairing and

in two directions. This is the first expressway in China which is

maintenance of roads. “Individual study of foamed bitumen

Re s e a r c h r e s u lt w i l l b e e x pa n d e d o n

expressway, using 15 cm cold recycled material replaces 12 cm

large area

ATB-30 asphalt base course. It increases the depth of stable

Foamed bitumen technology is injecting water to hot bitumen,

asphalt course, increases course strength, anti fatigue capacity

making it expansion and becomes bitumen foam. The foam

and water damage resistance. What is more, it can restraint

will settle down in short time again. The foam bitumen will

reflective crack effectively resulted from deformation due to

improved and widened on large scale using foamed bitumen cold recycling technology from Wirtgen. As the existing pavement material was reused sufficiently, the cost saving was around RMB 28,000,000. It provides a reference example for highway overhaul, improvement and widening in Shanxi province with clear economic efficiency and environment effect from this project.

Individual study was supported by the state as technical assistance Traditional pavement overhaul focuses mainly on substitution and strengthen. Substitution results in higher cost, longer time lasting, bigger project amount. Large quantity of milled material was not reused properly, resulting in waste and pollution. Strengthen has the short backs that pavement bearing capacity can not be essentially increased and pavement defects can not be eliminated essentially. Coming to 21 century, many high-class roads need to be maintained and repaired or improved, around 12% of pavement needs to be overhauled every year, results in a total quantity of around 2,200,000 t of existing pavement material. Recycling of these material and reuse them in pavement repairing and new construction, will be not only environment friendly, but also with big cost saving. Especially in west area, reusing large quantity of existing pavement material, will reduce pollution, conserve water and soil, build more roads with less investment. So, it has very important effect. 34

35

media section

dry shrinkage and temperature contraction of lime-fly ash treated

content of asphalt base course is 3.4%, and binder course is

crush stone base course material.

4.4%. When using foamed bitumen, existing material will be reused sufficiently. Saves crush stone. When paving on hard

Controlling of foam rate is the key of foamed bitumen cold

shoulders, it replaces binder and base courses with bitumen

recycling technology. According to Mr. Lijingde, the chieve director

content only 2.1%. It equals saving half of bitumen. Details

of quality inspection center of contract six, Xitong expressway

as he calculated: “the cost of 12 cm base course is RMB 98/

improvement and widening project of no. two highway bureau of

m², the cost of 6 cm binder course is RMB 61/m², resulting

China Communications Group, temperature, water quantity and

in a total cost of both courses together of RMB 159/m². The

air pressure are the three important aspects to decide foaming result. Technicians gathered three group of data for studying, and confirmed that bitumen temperature of 160°C, water content of 2%, air pressure of 0.5 MPa are the optimum foaming conditions, and bitumen content is controlled at 2.1%.

Hangzhou Research Shows Germany’s Wirtgen Recycling Technology Makes Major Emission Reductions

R

esearch in Hangzhou, Zhejiang province, has shown

the results. The experts stated that foamed bitumen cold

that the application of foamed bitumen cold recycling

recycling technology will make full use of old materials, reduce

technology using equipment supplied by Germany-headquartered

energy consumption, reduce carbon dioxide emissions, improve

cost of 18 cm foamed bitumen course is only RMB 76/m².

Wirtgen China can make major savings in heating energy,

pavement performance and shorten the construction period.

So, replace of base and binder course with foamed bitumen

reduce carbon emissions, and provide a very high utility ratio for

They added that practical experience shows that foamed

recycled materials.

bitumen cold recycling is a mature technology, with good

mix has a cost saving of RMB 83/m². It is RMB 259,790 cost saving per kilometer. The total foamed bitumen recycled

pavement performance, giving energy savings and lower costs.

material in Xsitong expressway project is about 61,800 m³, has a total cost saving of around RMB 28,000,000. It really makes

When the recycler is working on the road, people think that it just breaks the pavement. Actually, the speed of the recycler is strictly controlled at different working depth. Too fast or too slow working will all influence the size and the gradation of milled material. It was decided that recycling of surface and binding course together, the working speed should be controlled at 8 m/min; recycling of surface, binding and base course together, the working speed should be controlled at 6 m/min.

It was said that technicians will finish the study of mix design, strength mechanism, application performance and construction method package. At the same time, foamed bitumen mix used on roads of class two and class three

The experts went on to recommend that foamed asphalt cold

waste profitable.” Further more, foamed bitumen recycling has

recyling technology can be applied to highways, first grade

less labor and machine investment. It is natural curing which

roads, second grade roads and other grades of road overhaul

can be finished within two days during summer time. But,

and maintenance projects. The expert’s report concluded that

traditional water spreading curing method needs seven days.

As a new technology, foamed bitumen recycling has been testing and applying through the whole country. But, for expressway improvement and widening like Xitong expressway project, there is no experience or reference. Xitong expressway improvement and widening is the first project in China to use the design and construction, there are a lot of work to do on the study of recycling depth, recycling course, data control and application effect, etc.

the foamed bitumen cold recycling design and construction technical specification drawn up by Zhejiang province (DB33 / T Laboratory tests and practical experience of outdoor paving on

715-2008) can serve as a reference standard for the promotion

trial road sections led the Hangzhou Highway Administrative

foamed bitumen cold recycling technology in China’s national

Bureau to apply foamed bitumen cold recycling technology to

transportation industry.

overhaul projects on 32 national and provincial roads. Statistics from the bureau show that on 249 kilometers of road 480,000 tons of bitumen wastes had been recycled with a 90% utility ratio. Compared to conventional hot bitumen technology the construction period was reduced by 20%; the heating energy

are also studied, including confirmation of designing data. Typical pavement design of these roads when using foamed

“Hotlink: For more reports on Foam Bitumen Cold Recycling

bitumen mix was confirmed.

Technology, please refer to “New Concept Technology Has

required was reduced by 60%; and carbon emissions were reduced by 80%.

Helped to Reduce 39% of the Cost in Ningjing Highway

Saving material, time and cost Turn to energy saving, foamed bitumen has very strong points. According to Mr. Lijingde, in traditional design, bitumen

36

Project” on Page 2 of January 6th Edition (2010), and “Shaanxi:

Commenting on the statistics from the Hangzhou Highway

Fom Bitumen Makes the Waste to the Worth” on Page 2 of

Administrative Bureau experts from the Emission Reduction

June 4th Edition (2010) by “China Communication News”.

Department of China’s Ministry of Communications upheld

37

media section

Focus on the industry, make report in an all-round way Issue in May, 2010

Road Construction and Maintenance The favorite products of 100 people in the industry He Guanfu Manager of the Material Equipment Department of CCCC Third Highway Engineering Co., Ltd. Favorite product: German brand products

Reasons From a common employee in CCCC First Highway Engineering Co., Ltd. at the very beginning, the equipment distributor later, to the person in charge of equipment in CCCC Third Highway Engineering Co., Ltd., He Guanfu has a deep understanding about various kinds of engineering mechanical equipment. “I have been exposed to too many products. As far as the overall impression is concerned, what I approve most is German brand products. For example, Wirtgen, Voegele, Benninghoven etc.” He Guanfu said. “Comparatively speaking, although the growing speed of local products is relatively fast in recent years, there is still relatively great space for improvement. Although local products have been greatly improved in the overall manufacturing power, there is still certain distance compared to European and American brands in technical upgrade and innovation of equipment. Among the products of European and American brands, what I contact and use most is German brand products, so the sense of identification is relatively strong.” He Guanfu said like this about the reason why he approves German brands. He told us that in Europe, the speed of product upgrade is very fast, and enterprises often keep updating their own products according to the feedback of the customers. “In addition to focusing on the latest technology globally, what’s more important, manufacturing enterprises should know and meet the customers’ demands continuously, create and improve their own innovative ability, so that they can avoid taking up and adopting others' thoughts instead of using one's own. Over the years, in the alternation of models and technologies of German products I contact, I strongly feel 38

that these products are continuously getting close to the customers’ demands.” “Of course, when these enterprises bring us high precision technology, high productivity, low failure and etc., it is required that we bear relatively high price for purchase and service. However, it will not affect our approval to them,” said He Guanfu. He explained that infrastructure in China at present is still relatively slow compared to the speed of economic development. In the capital construction of transportation, the road construction alone will experience the stage of development at high speed for over 10 years. Combined with rising and flourishing construction of high-speed railway, it is not hard to estimate that slowdown of growth rate or slight fluctuation may occur to the capital construction undertaking of transportation in China in the future. However, within 10-15 years, the trend of rise in high price will be maintained as a whole. It is a good development opportunity for advanced pavement construction machinery,” said He Guanfu. He Guanfu told us that CCCC Third Highway Engineering Co., Ltd. started to purchase equipment to run self-operation in the mid-term of the year 2009. There is not much existing equipment, mainly in the fields of earthwork, cement equipment, lifting equipment and etc. At present, CCCC Third Highway Engineering Co., Ltd. is starting to purchase some road construction mechanical products successively. “We plan to complete the engineering amount of about RMB 5 billion in the year 2010. At that time, it will be decided whether new products will be purchased according to the specific condition of wining bids,” said He Guanfu when it came to the purchase plan of equipment.

Jin Liang Engineer Technical Department of Daqing Petroleum Administration Bureau Road Management Corporation Favorite product: Wirtgen cold recycling equipment in place Reasons Speaking of the retaining condition of equipment at present, Jin Liang sighed with deep feeling. “At present, Daqing Petroleum Administration Bureau Road Management Corporation manages and maintains 1500km road in Helongjiang Province, and undertakes various kinds of overhaul, newly-built and reconstructed road engineering and bridge repair and reconstruction engineering. Large-scale construction engineering amount makes the company own relatively complete configuration and type selection of equipment. However, most equipment is the products purchased in the year 2003 and 2004 successively. In recent years, no new machine has been purchased.” In spite of this, there are still many classic products in the construction of road building and maintenance among these products.” What I approve most is one set of Wirtgen cold recycling equipment. We have used it for so many years, and it never delays our construction period with steady performance and quality as well as relatively convenient operation,” said Jin Liang. Meanwhile, she also told us that the company desires to be able to know more products representing new maintenance idea, especially new-model recycling equipment and preventive maintenance equipment.” With the approaching service term of pavement and the completion of newly-built road, maintenance will be the top priority in future engineering. It is for sure that corresponding demands for equipment including demands in quantity and technical level will be increased.

Sun Li Equipment Manager Zhejiang Chuangdu Construction Co., Ltd. Favorite product: Voegele expansion paving machine Reasons As the person in charge of equipment, speaking of existing equipment products, Sun Li talked it like enumerating his family valuables, “We have 3 paving machines, 3 asphalt stirrers, 8 steel wheel road rollers, 4 rubber-tired road rollers and about 11 excavators. There is not much equipment, and engineering also focuses on the maintenance of municipal and urban roads. The engineering amount every year is about RMB 200 million.” Although there is not much equipment in the company, Su Li has used a lot of equipment since he worked. When it comes to the product impressing him most, Su Li was caught in memory, “Through comparison, what impressed me most is one set of Voegele 7.5m expansion paving machine.” The product was newly purchased in Zhejiang Chuangdu Construction Co., Ltd. in the past two years. It was greatly improved compared to the previous machine types in the design of complete machine.” The reason why it impressed me much is that there was great increase in the engineering amount undertaken by us in the year 2009 compared to that in the previous years. Considering cost profits, we didn’t purchase too many products at the beginning. Therefore, the machine was basically in the operation status of overload. Under such circumstance, Voegele paving machine could not only complete progress on time every time, but also had not great failure,” said Sun Li. At present, Zhejiang Chuangdu Construction Co., Ltd. has become a well-known building enterprise in Xiaoshan area, Hangzhou. The industries involve many fields including municipal industry, civil works, road, exploitation of stone materials, asphalt mixing and etc. In the year 2010, the company has been promoted to be Level-Ⅰ enterprise of general contracting in the construction of municipal public engineering. “The contribution of Voegele paving machine can not be left unrecognized in acquiring new qualification,” said Su Li in a satisfied way. 39

Hu-Rong-Xi Expressway in Hubei Province Wirtgen (China) Machinery Co.,Ltd. No.99 Chuang Ye Road, Langfang Economic & Technical Development Zone, Langfang, Hebei Province 065001,P.R.China