Excellent strength to weight. An all-purpose grade used in multiple industries
High-temperature resistant core suitable for prepreg applications
High-performance core for extremely demanding applications such as fast marine hulls
Superior strength to weight. Used in multiple industries, including wind and marine
A PET core with excellent FST properties used in transport and construction industries
A recyclable core material used in a variety of applications such as domes and claddings
Well-suited for use as local inserts in the way of fittings, either tapped or bolted through
A thermoplastic core material designed to increase performance and decrease weight
An aerospace core available with comprehensive quality documentation and traceability
A sandwich core with excellent FST properties, suitable in commercial aircrafts interiors
Core material for subsea applications, used from sea level to 700 meters depth
A deep-water subsea syntactic foam used for depths from 700 to 10,000 meters
A core with excellent insulation properties, for low and cryogenic temperatures
Used in marine and wind applications in combination with foam
A selection of the most widely used and preferred finishing options
Leitner Shriram Manufacturing Ltd (LSML) is an Indo-European joint venture between Shriram EPC and Leitner Technologies that was established in 2007 to manufacture megawatt class wind turbines in its global manufacturing hub for Leitwind wind turbines at Gummidipoondi, near Chennai, and was inaugurated in September 2009.
As part of the first phase this eight hectare
(20 acre) facility is producing more than
120 megawatt wind turbines per annum. It
is expected that production will be quickly
ramped up so that annual production will
exceed 250 units.
LSML maintains that its 1.5 MW turbines
offer advantages both in terms of efficiency
and long-term performance. By adopting
a simple, compact and modular design the
Leitwind 1.5 MW models are easy to install
and service and have low maintenance characteristics.
Compared to any other equivalent turbine, they have fewer rotating parts. This translates directly into better power generation efficiency and a longer service life.
Following on from the success of its
1.5 MW turbines, LSML has developed 1.8
MW model and it is already planning to
produce 2 and 3 MW models.
LSML has been working closely
with Diab’s Chennai operation since its
Gummidipoondi plant was in the planning
stage since early 2008. Sandwich composites
based exclusively on Diab cores are used
for both the blades and the spinners of all
The spinners are produced by a third
party but all blades are manufactured in
house by LSML using an epoxy infusion
and prepreg process. Earlier the cores were
supplied in sheet form but they are now supplied
in ready to use kits. Diab engineers
are also working with LSML to optimize the
spinner design and manufacturing process
through Core infusion Technology.
LSML cite a variety of reasons for using
Diab products and services. The fact that
Diab is geographically quite close is significant
but Mr. Philip Baby, Deputy General
Manager of LSML Rotor Blade Technology
is quick to point out, “Equally important is
Diab’s ability to understand LSML´s needs,
to provide flexible delivery schedules and to
offer technical support in terms of kits and
other engineering services.”
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Diab has been at the leading edge of composite core material development for over sixty years, supplying a wide range of markets including marine, wind energy, transport, aerospace and industry.
Diab is wholly owned by Ratos.
Diab International AB
Drottninggatan 7, 5th floor
252 21 Helsingborg, Sweden
312 22 LAHOLM, Sweden
Tel +46 (0) 430 163 00