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SCHERDEL, a strong partner at your side
Locations world-wide
Market leader in the field
of spring elements for oil
distribution rings
Think global – act local
Spring elements for oil distribution rings
locations ensures a flexible customer
service. Moreover a dynamic Development Department having long-standing
experience as well as the possibility to
use the knowledge of the other product
divisions – guarantees that SCHERDEL
is an extremely reliable partner and
problem solver. Five international
SCHERDEL locations producing
expander springs speak for themselves
and prove our market leadership in the
field of spring elements for oil distribution rings.
According to this slogan, the SCHERDEL Group is always at the disposal of its customers with 27 locations world-wide. This applies also to the Coil Expander Division
with its production sites in Germany, China, Japan, Brazil and the USA. In addition
to the internationalization of our locations, growth in terms of quality and performance is also an important Company target.
SCHERDEL Friedau GmbH & Co. KG,
Marktredwitz, Germany, Competence
Center
ANQING SCHERDEL AUTOMOTIVE
PARTS CO., LTD. (ASP), Anqing, China
Scherdel Sales & Technology, Inc.
(SST), Muskegon, USA
Scherdel do Brasil Ltda. (SDB),
Bairro Eden, Brazil
Scherdel-Togo Corporation (STC),
Miyoshi-cho, Nishikamo-gun, Aichi, Japan
Headquarter: SCHERDEL GmbH
Scherdelstr. 2
95615 Marktredwitz
Telephone +49 9231 603-0, Fax +49 9231 603-437
email [email protected], www.scherdel.de
SG-KRF-08/07-E
The history of the SCHERDEL Group is
characterized by various trend-setting
innovations. However, SCHERDEL has
always relied on proven experience.
Today, the Company is one of the internationally renowned suppliers to the
automotive industry.
In the field of spring elements for oil distribution rings, SCHERDEL guarantees
its customers on the one hand an extensive raw material stock and a flexible
fulfilment of delivery dates. On the other
hand, this product division in particular
benefits from the synergy effects of the
whole Group. The in-house machinery
department for special machines as well
as our strong international presence
with strategically selected production
Coil expanders
Precision in a very confined space
Coil springs – precision from
the beginning to the end
The SCHERDEL coil springs are one
component of the two-piece oil distribution rings. They have a very good oil
scraping effect in the cylinder system
without provoking any form of wear.
The springs thus contribute to reduce
the oil consumption and to improve the
environmental compatibility of the combustion engine. Thanks to our long-lasting experience and to our progressive
research and development work, we
are able to produce springs with a
diameter of less than 1.0 mm. At the
same time, we are able to meet
extremely strict tangential load tolerances and to achieve setting losses
that are considerably lower than the
required standards with the help of specially developed raw material.
A spring for each application
For the production of spring elements
for two-piece oil distribution rings, we
use mainly alloyed material with a
round wire section.
The following standard types according
to ISO 6626 are available:
A two-piece oil distribution ring with a chemically
deburred spring and a Teflon hose.
• not centerless ground
with one pitch
• centerless ground with
one pitch
• centerless ground with
centre portion (two pitches).
We also propose flat wire shapes
for special requirements relating
to high surface pressure (ring/
cylinder wall) and extremely
small assembly spaces. Special
designs with an additional chemical
deburring or a Teflon hose complete
our coil spring range.
Miniflex expanders –
small parts, big impact
Each spring has its
specific characteristics
In principle, the SCHERDEL Miniflex
expanders have the same purpose as
coil springs, however these elements
are used in the three-part oil distribution
rings (two side rails and one spring).
Miniflex expanders are limited to use in
gasoline engines and can be a costsaving alternative compared with the
two-piece ring systems. The fact that
we have our own machinery department is very advantageous especially
for the realization of the Miniflex production installations. On these special
machines, SCHERDEL has produced
springs with a nominal assembly height
of only 1.5 mm to series level. Our permanent striving for innovation is very
important in order to position and
strengthen our Group in the international markets.
SCHERDEL always offers high-quality
products taking into account the
requirements of its customers. The
Miniflex section comprises in particular
nitration-hardened and non nitrationhardened spring types with a nominal
assembly height of 1.5 to 4.0 mm.
Thanks to our in-house toolroom, it is
possible to produce all of the spring
designs that are common in today’s
market. In most cases, stainless steel is
used as a raw material.
guarantees a high reliability, in particular in the Aftermarket business. Various
spring types with a nominal height of
2.0 to 4.0 mm are produced.
PC98 expanders – innovation
based on experience
Even though in recent years this
expander type was often replaced by
Miniflex expanders, SCHERDEL has
stood by this reliable product. This
A three-piece oil distribution ring with a non
nitration-hardened Miniflex spring.