TPT March 2007

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Drilling, Piercing & Punching Technology
68 March/April 2007
RSA, a specialist for solving sawing tasks
for pre-production, has developed a sawing
centre that reduces the high labour and
material costs for the sawing of perforated
random lengths.
In the production of racking systems, the
precise distance between each perforation
is essential, but naturally there are
intolerances between perforations during
the manufacturing of perforated tubes. High
production costs of the punched pieces are
the consequence.
In order to precisely maintain the position
and tolerance of punched parts, it has
always been necessary to use semi-
automatic solutions. Time-intensive manual
measuring of punched tolerances and
adjustment of the saw length stop only
allows for a low yield. Companies using
a fully automatic saw can achieve higher
yields, but consequently need 100 per cent
checking of the fixed length, leading to a
higher acceptance rate of rejections due to
the alteration of the perforation.
The Rasacut OC sawing centre from RSA
works quickly and precisely. Tubes are
automatically singled from the bundle
and transported via a gripper to the saw.
This highly precise feeding is controlled
by an optical system that automatically
measures the tolerances of the individual
punching, and ensures precision between
the pressings and the tube end according
to the set parameters.
The machine includes fully automatic
deburring, cleaning and drying of the
fixed lengths. Certain parts in the random
material which show unsuitable tolerances
between the pressings are rejected and
removed. This eliminates the need for
additional 100 per cent checking and
results in fewer rejections.
The standard equipment of the Rasacut
OC is suitable for tube diameters from 10-
90mm, and fixed lengths from 30mm to
3,000mm.
RSA GmbH & Co KG – Germany
Fax: +49 2351 995 300
Email:
Website:
RSA Cutting & Deburring Systems Ltd
– UK
Fax: +44 1952 580 511
Email:
Website:
Sawing centre solution for perforated tubes
fi RSA’s Rasacut OC automatic sawing centre saws
perforated tubes and ejects faulty perforations
› The handling system transfers the workpieces to
the automatic deburring machine