TPT September 2009

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Advances in Cutting, Sawing & Sawblades
122 S eptember 2009 ›
TUBETECH CORPORATION LIMITED
TUBETECH WUHU MANUFACTURING CO.,LTD
Circular saw
aims to increase
overall efficiency
VOESTALPINE Tubulars is using Framag
technology to produce seamless steel pipes
with an outside diameter up to 177.8mm
(7 inches) at its plant in Kindberg, Austria.
The capacity of the hot pipe production,
boiler tube finishing department and oil
country tubular goods finishing department
operations is around 350,000 tons per
year. The products are of unalloyed or
medium-alloyed steel, manufactured to
international standards.
In its stretch-reducing mill the mother tubes,
which have been re-heated and descaled
using a water blast, are deformed in a
stretch-reducing mill with 28 stands until
they have the final desired diameter and wall
thickness. Following cooling on 90m rake-
type cooling beds, the ends are cropped and
the tubes are cut into processing lengths.
The ends are cut using two Framag cold
circular sawing machines – KKS 1430L.
For the best possible cut the pipes are
adjusted at the length measuring unit of
the sawing machine and the top ends of
the tubes are cut.
After a further adjustment at the length-
measuring device, the pipes are cut into
partial lengths between 2 and 18m. The tail
ends can also be cut off and transported
into a scrap container.
The sawing machine KKS 1430L allows
for cutting of tube diameters between 25
and 200mm and wall thickness from 2.5
to 25mm. The layer width is designed for
850mm and saw blades of up to 1,430mm
are useable.
Framag Industrieanlagenbau – Austria
Fax: +43 76835 04086
Email:
Website:
 The KKS 1430L in the finishing line
 The RASACUT XXL in operation
RSA, Germany, has developed a circular
saw, RASACUT XXL, for cutting tubes and
solid bars with diameters ranging from 20
to 170mm.
Further modules for de-burring, checking,
cleaning and stacking can be integrated
or added, allowing the powerful saw to be
expanded into an extensive sawing centre.
Due to a gearing that can absorb extreme
loads, a drive power of 20 to 40kW and
its robust construction, the sawing centre
can cope with large diameters and heavy
work pieces.
Compared to modern band saws, which
are often used in this field, RSA says its
circular saw can help reduce cutting time
so that the customer can even use it to
replace several band saws and still create
additional capacity.
The machine can also been used to cut
short tubes with diameters of up to 30mm
and fixed lengths of up to 150mm, which
are used as rubber-to-metal joints for
chassis stabilisers.
The de-burring module of the RSA sawing
centre is equipped with high performance
brushes and the combination of sawing and
deburring at a sawing centre significantly
reduces the cycle times, says RSA.
RSA Entgrat u Trenn-Systeme GmbH &
Co KG – Germany
Fax: +49 2351 995300
Email:
Website:
New cutting machines boost capacity