Expertise in the field of electromobility - Scherdel GmbH

REPORTS ON RESEARCH AND DEVELOPMENT, MANUFACTURING, MATERIAL TECHNOLOGY AND THE PRACTICAL APPLICA-
TIONS OF ENGINEERING SPRINGS AND ON THE SYSTEMS, MACHINERY AND TOOLING DIVISIONS OF THE SCHERDEL GROUP
Dear reader,
Sustainability is the key factor in
relation to the manufacture of products
and the provision of services.
This means that for the services
they provide, whether material or
intellectual, companies must also
earn sufficient money to enable
them to invest in new technologies,
modern machinery and qualified
staff. Similarly, the social and
cultural commitment of small and
medium-sized companies in relation
to the community and the environment
can only be ensured if these
companies have an adequate
income. In this connection it is
extremely worrying to note that our
customers' decisions to buy a particular
product are often based
solely on the criterion of the lowest
price. In the long term however,
extremely low price levels lead to
company failures. If, in relation to
their pricing policy, suppliers are
forced to go to the limit of their
capacity, one shouldn't be surprised
if there is an increase in the number
of insolvencies. However, if the
supplier goes bankrupt, the final
outcome will be an enormous
increase in costs for the OEMs.
Anyone who achieves a radical
improvement in his own financial
situation at the cost of others is
doing a disservice to himself and to
society. At any rate, SCHERDEL
will continue to maintain a steady
course aimed at ensuring sustainability.
With this in mind, I wish you
all the best for the New Year and a
far-sighted approach to the question
of fair competition.
Expertise in the field
of electromobility
Forum discussions at Poppenreuth about
the future of the electric propulsion system
I
n accordance with the corporate
motto "Progress based on tradition"
– "Growth thanks to innovation" the first
Poppenreuth forum discussions centred
on the subject of electromobility.
Thomas Regnet, the General Manager
of SCHERDEL INNOTEC Forschungsund
Entwicklungs GmbH (research &
development), had invited three highly
qualified experts to take part in the discussions:
Professor Hagen from
Munich, who was active in the field of
electrically-driven utility vehicles back
in the 1980s, Professor Sonnenborn,
who is the dean of the Technical
College in Hof and a market specialist
who worked for Bavarian automobile
manufacturers for several years, and
Professor Magerl who, after working
for an OEM and a supplier in Baden-
Württemberg and in the USA, is now
the dean of the Amberg-Weiden Technical
College. The specialists and management
staff of the SCHERDEL
Group listened attentively and took an
active part in the discussions.
vehicle-drive system, the question of
electromobility in particular was examined
more closely. The discussion
focused on the fact that in the
SCHERDEL Group the metal-working
division is dependent on the combustion
engine. Since the most probable
scenario in relation to future vehicledrive
mechanisms will be a development
from the combustion engine via
the hybrid drive system (with variations
ranging from mild hybrid and micro
hybrid to full hybrid or plug-in hybrid)
the participants concluded that, as far
as cooperation with the customers was
concerned, SCHERDEL was on the
right track. Irrespective of whether the
electric propulsion system will play
an appreciable part in automobile
manufacture by 2015 or by 2025,
SCHERDEL is already supplying series
components for the automatic start/stop
function. In the future, the aim is to
offset the decrease in the number of
components for the combustion engine
by developments in the field of methods
for connecting batteries, systems
for mounting and bundling batteries,
and plastic/metal parts for connecting
electric-propulsion components. In
addition, intensive research is already
being carried out in the field of new
connection technologies such as laser
welding, and also in relation to an
increase in the use of electrically conductive
materials.
(tr)
AWARDS AND DISTINCTIONS - TECHNOLOGY & PRODUCT DEVELOPMENT - NEWS AND INFORMATION EDITION 3/2009 E
After presentations of the current situation
in relation to the various types of
Walter Bach
Group Managing Director 1

COMPANY NEWS
AWARDS AND DISTINCTIONS - TECHNOLOGY & PRODUCT DEVELOPMENT - NEWS AND INFORMATION
Donations for Africa
The Association known as
"HAND in HAND Wehrsdorf
e.V.", whose chairman Mr
Mesabrowski is the General
Manager of the SCHERDEL
factory in Seifhennersdorf,
organises a wide variety of
activities to support the
African mission "Mwnagaza
Africa International" in Eldoret
in Kenya. At present, donations
are required in order to
supply the school in Kimumu
with chairs and tables for the
ever-increasing number of
children. A roof for the school
kitchen is also urgently needed.
At present, the cooking
has to be done in the open
air. For many children, the
school kitchen provides the
only hot meal they get a day.
If required for your incometax
return, receipts can be
issued for donations received.
The Association is currently
looking for people willing to
act as a sponsor for the children
who will move into the
new Children's Home from
about the middle/the end of
2010. Such a sponsorship
costs 40 EUR per month.
This amount covers all the
expense required for the
child, such as food, clothing,
school fees, school uniform,
as well as the income of the
house parents. (dk)
The contact data for
the Association:
HAND in HAND
Wehrsdorf e.V.
Lessingstraße 91
D-02689 Sohland
Phone: 035936/30557
Fax: 03222/2472054
email:
kontakt@handinhandwehrsdorf.de
www.handinhandwehrsdorf.de
Bank account:
Kreissparkasse Bautzen
Bank code 855 500 00
Account number 1000 000 253
SCHERDEL supports buildi
Group's social commitment translates corporate gu
P
roduct innovations, modern manufacturing
technologies and service
geared to customer requirements are
only some of the reasons for the
economic success of the SCHERDEL
Group which has 26 locations and more
than 3,800 employees worldwide. The
motivation and working morale of the
whole staff make an equally important
contribution to this success. From the
very beginning, SCHERDEL's corporate
philosophy has therefore been based
on the principle that in all the Group's
activities the focus is on people. In
addition, social commitment, a corporate
culture based on moral and ethical
principles and a strong sense of
responsibility towards the environment
are also part of SCHERDEL's entrepreneurial
approach. The latest example of
the Group's social commitment is the
support they have given to the African
mission "Mwnagaza Africa International"
for the setting up of a Children's
Home in Eldoret in Kenya.
On the initiative of Mr Lutz Mesabrowski,
the General Manager of the
SCHERDEL factory in Seifhennersdorf,
Walter Bach the Group Managing
Director agreed to help in an area
where none of the international relief
organisations were providing financial
assistance on a large scale. In a poor,
rural district in Kenya, following the
example of the German SOS-Kinderdörfer
(society for the support of children
in need), the Christian mission
plans to set up a total of five homes,
each of which can accommodate twelve
children. Thanks to the financial support
of the SCHERDEL company, SFS
Spezialfedern, it was possible to start
building the first Children's Home in
2008. Since August this year, twelve
children, who come from the worst
social conditions and who had to spend
their lives as street children without
parents, have now been living in an
orderly, family-like community where
they are looked after by two adults. In
addition, by building a school, the mission
has ensured that the children have
access to education, thus giving them a
chance to escape from the vicious
2

ng of children's homes in Africa
iding principle into action
circle of poverty, drugs, criminality and
illnesses such as AIDS.
Another important project which the
supporters of the mission are planning
for the future is the setting up of a
small hospital facility so that medical
assistance will be available locally.
At present, the nearest hospital for
the people in Kimumu, a suburb of
Eldoret, is so far away that it can only
be reached with difficulty. When he
returned from his last journey to Africa,
Mr Mesabrowski, who has been supporting
the mission privately for three
years now, presented the SCHERDEL
management with a series of photos
documenting the building of the
"SCHERDEL Children's Home". Thereupon
Mr Walter Bach spontaneously
agreed to provide additional assistance
– despite the tight economic situation
currently prevailing. This means that
they will be able to start building a second
Children's Home in the near future.
However, it is not only in Africa but
all over the world that SCHERDEL
considers it a duty to help people and
so, whether on a large or a small scale,
the Group endeavours again and again
to translate the main principle of the
corporate philosophy into action: one
example of their activities in the field of
social commitment concerns the region
of Upper Franconia where, in addition
to sponsoring cultural activities such as
the "Festival Mitte Europa" (Central European
Festival), they provide financial
support for numerous associations and
institutions. Mention should also be
made of the fact that SCHERDEL
sponsors sporting events and of the
Group's support for competitions such
as "Jugend forscht" (research projects
by young people). Other examples of a
company policy centred on people include
support relating to the provision
of meals for a school specializing in remedial
education, the creation of jobs
by means of teleworking and part-time
employment or a flexible system of
rules relating to working hours so that
staff can attend to their children or look
after relatives. All these examples are
living proof that the SCHERDEL group,
as a medium-sized enterprise, does not
merely regard guiding principles such
as "In all our activities the focus is on
people" as superficial publicity gloss
but translates words into actions. Anyone
who is interested in supporting
SCHERDEL's "Africa Project" can contact
Mr Mesabrowski or his charitable
association. You'll find all the necessary
information in the column at the
side of this article.
(dk)
3
AWARDS AND DISTINCTIONS - TECHNOLOGY & PRODUCT DEVELOPMENT - NEWS AND INFORMATION

TRADE-FAIR REPORT
AWARDS AND DISTINCTIONS - TECHNOLOGY & PRODUCT DEVELOPMENT - NEWS AND INFORMATION
4
Official Award of the
State of Bavaria for
staff training
The high standard of staff
training provided by the
SCHERDEL subsidiary
Reichenbacher-Hamuel
GmbH in Dörfles-Esbach
near Coburg was demonstrated
recently when a special
honour was conferred.
The Bavarian government
presented an official award
to Christiane Kamolz who
received her training in
this well-known company
specializing in mechanical
engineering and is now employed
in their Application
Technology Division. In the
final certificate of the Vocational
School at Coburg Ms
Kamolz received the best
mark, grade one, and in the
final examination of the
Chamber of Industry and
Commerce she received the
overall mark of 1.5 for her
qualification as a mechatronic
technician. Dominik
Langhojer also completed
his training as a mechatronic
technician with an average
mark of 1.4 at the Vocational
School and 1.6 in the
Chamber of Industry and
Commerce examination.
The people in the photograph
have every reason to
be pleased about this proof
of the high quality of staff
training: (from l. to r.) Andreas
Leutheußer (General
Manager), Hans-Joachim
Kahl (Application Technology),
Manfred Sonnauer
(Director of Studies), Christiane
Kamolz, Anton
Staudigl (Principal), Frank
Welsch (Training), Rüdiger
Fischer (Electrical Workshop)
and Dominik Langhojer.
(dk)
Mechanical-engineering
industry hopes for an
increase in demand
HAMUEL presents the HSTM 1000 turning
and milling centre at the EMO in Milan
H
amuel Maschinenbau, a company
located in Coburg and a member
of the SCHERDEL Group, was very
satisfied with its participation in EMO,
the international mechanical-engineering
trade-fair held at Milan in Italy. Here
it should be noted: the general feeling
in the trade is better than the actual situation.
There is no doubt that the machine-tool
manufacturing industry has
been badly hit by the economic crisis
but in Milan there were also people who
believe that the markets are on the way
to recovery.
The international trade-fair for metal
working takes place every two years,
alternately in Hanover and in Milan. At
the EMO, HAMUEL presented the
HSTM 1000 turning and milling centre,
equipped with a BLUM touch probe for
measuring the workpiece and a BLUM
laser for tool offset compensation. Here
visitors were particularly interested in
the impressive "live performance" of
cutting procedures for a turbine blade.
The machines of the HSTM series were
developed for the efficient production of
high-precision workpieces, such as turbine
blades. The machine is first-rate
for both single-piece and series production,
as well as other complicated
turned and milled parts. Thanks to the
most modern drive-system and control
technology – for finishing parts with extremely
complicated contours for example
– the machine ensures a high level
of productivity and outstanding flexibility.
For HAMUEL this was the first appearance
at the trade-fair in Milan.
Thanks to the support of PROTESA,
the newly established agency in Italy,
they were able to welcome a large
number of visitors from the trade –
mainly from Italy of course – to their
stand measuring 96 square metres. Inquiries
from all over the world and a
steady flow of visitors to the stand –
people with the appropriate expertise –
confirmed that the decision to take part
in the trade-fair had been the right one.
On an exhibition area of 180,000
square metres, thanks to the participation
of approximately 2,000 manufacturers
from 35 countries, EMO 2009 provided
a general view of all machines for
the manufacture of new, highly competitive
products of an excellent technical
standard.
In the opinion of the machine-tool
manufacturers Asia will provide the
driving force. In China and India in
particular, investments have suffered
less from the economic crisis and in
the coming year we may expect an
improvement here.
(mb)

AWARDS
Energy absorber
convinces jury
SCHERDEL in-house development among
the finalists for the Steel Innovation Award
W
ith the development of an energy
absorber for the protection
of pedestrians in the case of a car
accident, the SCHERDEL subsidiary
INNOTEC was one of the finalists for
the 2009 Steel Innovation Award presented
by the Steel Centre in Düsseldorf.
From among a total of 644 projects
submitted, the jury was particularly
impressed by the innovative character
of this SCHERDEL development.
In the case of a collision with a car,
the risk of injury to pedestrians is usually
very high. By designing the impact
zones at the front of the vehicle appropriately,
the automobile manufacturers
are trying to counteract serious injuries.
Here the hinges of the car bonnet are
one of the focal points. The aim of this
new development by INNOTEC was to
make these bonnet hinges more "flexible"
with regard to the absorption of
energy. The newly developed component,
which is pretensioned and therefore
free from backlash, is installed under
the actual bonnet hinge. When a
body collides with the car bonnet, as a
result of the plastic deformation of the
component there is a uniform dissipation
of energy and so the severity of
the injury (HIC value) is considerably
lessened. In this case, the optimum
solution has proved to be a mesh-type,
expandable sheet-metal component
made of 1.4310 stainless steel. The
correct choice of the fixing points
together with the plastic deformation
of this expandable component ensures
a more or less constant distribution of
force. At the same time, in the case of
a collision, the car bonnet sinks several
centimetres downwards. Essentially,
the expansion of the sheet-metal component
is caused by a distortion of the
individual small ribs as in the case of a
rib mesh. The expandable sheet-metal
part is simply a stamped component
and therefore it can be manufactured
very economically. By varying the ribs
the force characteristic can be adjusted
fairly easily. SCHERDEL developed the
energy absorber for one of the big German
car manufacturers and has applied
to have it patented. The component is
also suitable for other applications
where the aim is to dissipate energy.
SCHERDEL spring
decorates perfume bottle
The
SCHERDEL
subsidiary
RHONE
RESSORTS,
located in
L'Arbresle in
France, has
proved that
products
from the field of metal-working
not only provide excellent
solutions for technical
problems but can also act
as unmistakable design
features. With the aim of
extending their product portfolio
and in search of new
industrial applications, this
French company has succeeded
in establishing itself
as a supplier to L'OREAL,
the firm with the well-known
trade name. This means
that from the beginning of
2010 the bottles for the perfumes
"AMOR AMOR" and
"AMOR HOMME" of the
brand Cacharel will be decorated
with a spring. In just
under 18 months of intensive
work, the project team
of RHONE RESSORTS
learned a lot about the optical
characteristics of design
elements made of metal. Of
course the requirements of
trades outwith the automotive
industry are of a different
nature but they must be
treated with the same degree
of care and precision.
(dk)
5
AWARDS AND DISTINCTIONS - TECHNOLOGY & PRODUCT DEVELOPMENT - NEWS AND INFORMATION

RESEARCH
SCHERDEL does research
for the spring industry
Spring calculation – a cont
AWARDS AND DISTINCTIONS - TECHNOLOGY & PRODUCT DEVELOPMENT - NEWS AND INFORMATION
6
SCHERDEL
INNOTEC
Forschungsund
Entwicklungs-GmbH
made an important
contribution
in the
scientific field
in relation to the European
research project "Tech Spring".
In cooperation with the "Institute
of Spring Technology" the aim
was to investigate a large number
of hitherto unsolved problems
relating to the manufacture of
springs for technical applications.
In addition to the Italian Spring
Association (ANCCEM), the
Dutch Spring Association (DAS),
several European spring manufacturers
and suppliers such as
those specializing in measuring
techniques, shot-peening or wire
manufacturing were also involved
in the research project.
At a seminar organized by the
European Spring Federation
(ESF), in connection with the
above project Dr. Peter Thoma
gave a paper on the influence of
tempering and of presetting on
the fatigue strength of compression
springs made of different
materials. Furthermore, the research
project dealt with the influence
of the frequency of testing
on the values obtained in relation
to fatigue strength, with the optimization
of the shape of hooks in
relation to tension springs and
with the calculation of stress in
torsion springs, to mention but
a few of the topics. For the research
project, Dr. Thoma was
able to call on the collective technical
expertise of the SCHERDEL
Group, for example in relation to
the following: strain-gauge technology;
the measurement of
residual stress using X-ray methods;
calculation procedures such
as the Finite Element Method
(FEM) and Multibody Simulation
(MBS); or the carrying out and
evaluation of fatigue tests. The
results of Dr. Thoma's work have
also been incorporated in the
software toolkit for spring calculation
distributed by the "Institute of
Spring Technology". In addition,
by means of seminars, publications
in journals and on the project's
website at www.springtech.eu,
the scientific findings of
the whole research project are
available to a wide range of specialists.
(dk)
Master's thesis by Marcus Bach on the calculation
A
s a continuation of the article
"Numerical simulation provides
optimum dimensioning for engineering
springs" in the previous edition of
SCHERDELnews, in his Master's thesis
Marcus Bach the son of Walter Bach,
the Managing Director of the
SCHERDEL Group, dealt with the
possibilities for calculating dynamically
stressed spiral springs.
This topic is becoming increasingly
important as a result of the need to reduce
carbon-dioxide emissions since,
to an increasing extent, the car manufacturers
are using variable valve-train
Diagram 1: characteristics and stress values in M2
systems (VVT) in order to achieve
this aim. Dynamically stressed spiral
springs are very often used in camshaft
adjusters. Until now, in order to determine
the suitability of a spring design,
the only possibility was the expensive
method of testing prototypes.
FEM model
On the basis of a 3-D CAD drawing or
a scanned spring geometry, taking into
account the geometrical moment of inertia
of the cross-section of the strip, a
2-D FE model is constructed. It is necessary
to reduce the model to two dimensions
in order to carry out the compute-intensive
work within a reasonable
space of time.
Once a model of the dimensions and
of the spring geometry has been made,
the first step is to calculate the static
characteristic moment line (diagram 1).
Here we can see the course of the
spring moment over the torsional angle
and the good conformity with the measurement.
The hysteresis which occurs
during stress and relief is caused by the
friction arising when the spring coils are
in contact with each other.
The aim of the calculations is to make
it possible to assess the dynamic behaviour
of various different geometries
and characteristics right from the development
stage.
Natural frequencies
Here, the first stage is to determine
the natural frequencies of the spring
under different load conditions. Unfortunately
the linear modal analysis method
is of no use here since sliding friction
points develop between the individual
spring coils. For that reason, as in the
case of the test, the natural frequency
has to be calculated by excitation of the
spring followed by Fast Fourier Transformation
(FFT).
As a result of this first test it can already
be seen that in the case of spring
2 the oscillation amplitudes are much
smaller than in the case of spring 1.
Diagram 2: excitation and FFT
Since, however, the natural frequencies
of the springs change as the stress
increases (see spring 1 in diagram 3),
the resonance points can only be determined
via a frequency ramp under continuous
excitation.
Diagram 3: natural frequencies in M1 and M2

ibution to climate protection
and validation of dynamically stressed spiral springs
Frequency ramps
The calculation of frequency ramps is
done by means of oscillating torsion of
the spiral spring at the inner mandrel.
This is possible using a hydraulic ram.
Here the amplitude remains constant
and the frequency varies from 0 to 350
Hz. This corresponds to a revolution
speed range from 0 to 21000 r.p.m.
This appears to be very high. However,
it is necessary since we have to allow
for excessively high frequencies of the
second and third order and since, at the
Diagram 4: Tensile stress values at the supporting pin
time of the spring dimensioning, the actual
excitations caused by engine vibrations
are still completely unknown.
To obtain an evaluation, the tensile
stress at the outer edge of the spring
contact is moved in the direction of the
supporting pin. As a general rule this
pin is necessary to ensure stable positioning
of the outer end of the spring,
thus preventing the spring from tilting.
This example shows very clearly that
in the case of spring 1 at this point the
maximum stress values are much higher
than in the case of spring 2. This is
due to the straighter characteristic and
the greater load values. Nevertheless
we can assume that the spring has sufficient
fatigue strength if it is subjected
only to the stress values occurring in
the static calculation.
In diagram 4 it can be seen that in the
region of 230 Hz there is a pronounced
occurrence of resonance. The variations
of stress between two loads,
amounting to approx. 700 [MPa] in this
case, inevitably result in the fracture of
the spring. An equivalent excitation can
occur in the case of a 6-cylinder
V-engine with a conventional ignition
sequence at approx. 4500 r.p.m.
On the other hand, in the case of
spring 2 no appreciable resonance
occurs until 300 Hz and so this spring
should function for most applications.
As an alternative to excitation at the
inner mandrel of the spiral spring, the
model can also be excited by accelerations,
as in a shaker test. As a rule this
is easier with regard to both the experiment
and the calculations.
Summary
Although the simulation tests achieve
results of a very high standard, they do
not claim to pinpoint the occurrence of
resonance in dynamically stressed spiral
springs with complete accuracy in
respect of amplitude and frequency.
However, they enable us to test, at a
very early development stage, a variety
of spring designs with regard to their
suitability for a particular application.
ZARIAN successful at
MOTEK trade-fair
The SCHERDEL
subsidiary ZARIAN
Bewegungssysteme
GmbH participated successfully
in the MOTEK
trade-fair which was held
in Stuttgart at the end of
September. More than
30,000 specialists from
61 countries obtained
information about new
developments in the field
of automation technology.
In connection with a
strategic systems partnership,
ZARIAN exhibited for
the first time along with
Motoman Robotec GmbH
on a joint stand at the
trade-fair. The visitors to
the fair showed great interest
in the company and
recently numerous wellknown
manufacturers from
various branches of industry
have made concrete
inquiries. It is particularly
gratifying to note that new
customers too are very
interested in ZARIAN's
products and services. (dk)
7
AWARDS AND DISTINCTIONS - TECHNOLOGY & PRODUCT DEVELOPMENT - NEWS AND INFORMATION

AWARDS AND DISTINCTIONS - TECHNOLOGY & PRODUCT DEVELOPMENT - NEWS AND INFORMATION
SCHERDEL – development
partner for industry
Progress based on tradition – Growth thanks to innovation
I
n relation to the development
of technical components,
SCHERDEL can provide you with
an extensive support and advisory
service aimed at optimizing the production
process. This includes the
selection of suitable raw materials,
the choice of surface coatings and
the provision of a wide range of
Research and
development
testing of materials
and components
design and project work
on components, machines
and systems
development of systems
software development
information transfer
specialist tutoring for studies
and degree work
Automation and
control technology
feeder equipment
assembly devices
ZARIAN single and multiaxis
motion systems
control systems for
special machines
KANYA aluminium profile
module systems
Engineering
springs
Development and
production of:
valve springs
compression springs
tension springs
disk springs
sleeve springs
torsion springs
retractor springs, constant
force springs and spiral
springs
spring elements for oil
distribution rings
Tools and
equipment
Development /
design /
production of:
punching tools
bending tools
stamping tools
follow-on composite tools
transfer tools
gauges, gripping devices
peripheral equipment for
automatic handling machines
and special machines
laboratory services. Numerical simulation
and FEM analyses – core
competences at SCHERDEL – also
play an important part in relation to
product development. An in-house
prototype shop will provide the
required prototypes at short notice.
In addition, all the manufacturing,
assembly, testing and logistical
Vehicle
components
formed wire springs
vehicle seat frames:
riveted, upset,
clamped, welded
(projection welded,
spot welded,
pressure welded,
MIG-MAG welded)
Surface
finishing
cleaning
phosphating
powder coating
cathodic electro
immersion painting
Delta “MKS” products
processes can be developed parallel
to the product. The comprehensive
quality-management system
guarantees the highest standard of
functional efficiency and durability
for all the products developed.
Stamping and
bending technology
Stampings and
shaped components:
thickness of material
0.1 - 3 mm
wire shapes: wire diameter
0.1 - 4 mm
Connection
technology
Development /
design /
production of:
standard hose clamps
compact hose clamps
prestressed hose clamps
double hose clamps
Machines
and systems
Development /
design /
production of:
high-speed and portal
milling machines
single-axis and
coordinate tables
linear robots
handling portals
machine-tool
components
special machines for
spring production
Assembly
technology
Development /
design /
production of:
spring packs for
automatic transmission
spring supports for car tailgates
return springs for variable valvetrain
systems in engines
pre-assembled tambour door
systems with integrated torsion
springs for the furniture industry
8
Responsible in terms of the Press Law: SCHERDEL GmbH, PO Box 440, 95604 Marktredwitz, Germany, Phone: +49 9231603-0, Fax: +49 9231603-462