TPT November 2010

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36 November 2010 ›
Technology Update
LEIFELD Metal Spinning presents the
world’s largest flow-forming machine, the
ST 650 H 9100, allowing high-precision
flow forming of tubes over 13 metres long.
The ST series made by Leifeld captivates
through its high-precision forming of rotation-
symmetric hollows with both non-varying as
well as varying wall thicknesses. With the
latest ST 650 H 9100, for the first time, it is
now possible to flow form a semi-finished
product of higher quality up to 9 metres
using forward flow forming technique.
This length is even excelled with the
backward flow forming technique to more
than 13 metres tube length. Werner Hütter,
CTO Leifeld: “With these dimensions, Leifeld
offers a unique and new machine of the
ST series. Due to its incomparable size,
we are once again one big step ahead of
our competitors.” For the realisation of this
machine, entirely new territory, concepts, and
detail solutions were elaborated by Leifeld’s
experienced engineers. With the technical
SIGNIFICANTLY more precision, long-
life-cycle and efficiency – this is the result
of the development of the new X-RAY
6000 generation.
Sikora has designed the new device
series, because optimised X-ray technology
has specific advantages over alternative
measuring technologies regarding quality
and reliability during hose and tube
manufacture. Moreover, they have the
highest potential to considerably save
material costs in a long term.
The new X-RAY 6000-family is based
on the predecessor X-RAY 2000 and had
been consequently further developed in
details. It is equipped with XLL-(eXtra-
Long-Life) X-ray tubes for long operation
time. Simultaneously the measuring rate
implementation, the economical production
and assembly, as well as the transport
possibilities of this high-precision machine,
weighing more than 120 tons and measuring
more than 30 metres, Leifeld proves yet again
its traditional lead as innovative and quality-
conscious machine builder; a well-earned
reputation dating back to the development of
basic flow-forming technology implemented
today all over the world.
Within the scope of an international
invitation to tender, Leifeld succeeded
against fierce competition with its
convincing innovative power and excellent
price-performance ratio. Holger Hansen,
CEO Leifeld, takes pride in their technical
achievement. “Anji Precision Pipe
Manufacturer Co is a renowned customer,
enabling us to implement our unique
machine concept ST 650 H 9100. The
logical further development of the ST series
is yet another important milestone in our
company history.”
can be chosen from 1 to 10 Hz. In addition,
the use of a universal power supply, which
covers all prevalent supply voltages and
frequencies, rounds off the technological
highlights.
The X-RAY 6000 measures the wall
thickness, eccentricity, the ovality and
diameter with precision.
Producers of plastic and composite
pipes as well as rubber hoses benefit from
the use of the X-RAY 6000 in their lines,
as the quality standards for these products
are tremendously high.
Sikora AG – Germany
Fax: +49 421 48900 90
Email:
Website:
The basis for the successful closing was
not least the well-rehearsed collaboration
with Leifeld’s Chinese sales partner of
many years, Ginweila Science & Tech
Co Ltd. The close coordination with the
headquarters, technological know-how as
well as convincing presentations and clever
negotiating skills were crucial factors of
success.
Wuliangye Anji Precision Pipe
Manufacturer Co is a subsidiary of the
Wuliangye Group being a modern, Chinese
major enterprise. Its focus is the production
of plastic products, pharmaceuticals,
and tubes. In total, the Wuliangye Group
employs more than 30,000 people in
several locations in China.
Leifeld Metal Spinning GmbH –
Germany
Email:
Website:
World’s largest flow-forming machine
The St 650 H 9100 allows high-precision flow forming of tubes over 13 metres long
The new X-RAY 6120 for wall thickness, eccentricity and
ovality measurement in hose and tube extrusion lines
X-RAY 6000 from Sikora