EoW November 2007

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EuroWire – November 2007 16
english corporate news
Diamond celebrations
for Krenn
The champagne corks have been
popping in the German city of Neusäß
as Krenn staff celebrated the company’s
60thanniversary – the diamond anniversary!
In 1947 the spring specialist Albert Krenn
senior founded the company at Augsburg
for the production of technical springs,
lathing the springs by hand with his wife,
Zenta.
Two years later the company founder
and skilled toolmaker developed a new
kind of steel cutter for the building
industry – a tool that is still in production
today.
At its 10th anniversary the fast-growing
company moved into newly-built rooms
in the neighbouring city of Neusäß, and
in 1975 Albert Krenn junior, the son of the
company founder, took over the business.
In order to better concentrate the
company’s resources, the manufacturing
of springs was stopped and the
production of steel cutters with three-
edged replaceable blades was extended.
Krenn now represents Europe’s most
extensive steel cutter programme, and
apart from the ‘classic steel cutters’, the
manual steel cutters, and pneumatic
tools have been part of production since
the 1980s.
This production has also now extended
to include electro-hydraulic steel cutters,
as well as special tools for the cutting of
chains, wire ropes and other material.
The most powerful cutting tools have a
cutting capacity up to 50mm in diameter.
During the last few years the accessories
range has been enlarged by products for
more efficient working processes, among
them steel strapping cutters, balancers
and suspension bars. “We are looking
ahead with a positive feeling, because
we have cutting solutions for all kind of
needs,” said managing director Albert
Krenn. “Due to our policy of enlarging our
product range, it was possible to conquer
important business fields.”
Krenn also produces a catalogue for the
complete product range, which is also
listed on the company’s website.
Werkzeugfabrik Albert Krenn – Germany
Fax: +49 821 207 9330
Email:
Website :
Albert Krenn, managing director, outside the newly built offices at Neusäß near Augsburg, Germany ▲
Tata Iron and Steel, India, has awarded SMS Demag a contract
for the modernisation of its hot strip mill in Jamshedpur.
For the roughing mill the contract includes the replacement
of the drive trains, the installation of new hydraulic adjusting
systems, as well as a new Level 1 automation system with
gauge and width control.
For the finishing mill SMS Demag will supply new drive trains
for mill stands F1 to F5.
The SMS-designed and built compact hot strip mill went in
operation in 1993, producing around 3.1 million tons of hot
strip per year. Production after the revamp can be raised to
more than 3.5 million tons per year.
The rise in production will be accomplished by increasing the
drive power in the roughing stand and finishing mill.
An important factor is the 25% rise of power level in the
roughing stand, which allows the number of passes to be
reduced and makes the design of pass schedules easier.
To be able to transmit the higher torques, new drive
spindles, larger work rolls and Morgoil® bearings with higher
load-bearing capacity as well as modified roll chocks will
be installed.
In the finishing mill the power of the motors will be increased
by around 10%.
SMS Demag will replace the main gear units of F1 to F4 and
the pinion gear units of F1 to F5 or their gear wheel sets.
On F1 and F2, new Sieflex® gear spindles will be installed.
A detailed concept was developed together with Tata Steel
in order to minimise the times of production stoppages that
are needed for the revamping job.
The roughing-stand area will be modernised in the autumn of
2008 as part of an 18-day shutdown.
Work in the area of the finishing mill has been scheduled
for the summer of 2009 during the regular short-time and
continuous shutdown periods.
SMS Group – Germany
Fax: +49 211 881 4386
Email:
Website:
lSMS modernisation of Tata mill