TPT March 2013

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Technology News
March 2013 59
GOOD QUALITY FAST
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TENRYU SAW MFG. CO., LTD. | Japan, Fukuroi,
TENRYU EUROPE GMBH | Germany, Aalen,
TENRYU AMERICA INC. | KY USA, Hebron,
TENRYU SAW (THAILAND) CO., LTD | Thailand, Chonburi,
TENRYU (CHINA) SAW MFG. CO., LTD. | P.R. of China, Hebei,
© FotoLyriX - fotolia.com
Development project for
pellet inspection
THE cleanliness of extruded material
becomes more important for many
applications, especially in the medical-
product field, where tube quality is
critical.
Similarly for foil tape extrusion or
during blow film process it is essential
to avoid contamination. Hence there is
the need for other measures to detect
possible contamination in the pellet and
to remove them.
Aspecial challenge is thecontaminated
pellet itself. Contaminants are most
often not only on the pellet surface, but
they are also internal and melted down
in the pellet. By means of optical testing
systems these contaminants cannot be
detected. That is the reason why Sikora
is currently developing a completely
new system that differs in two ways from
existing but flawed solutions: The Sikora
system is based on X-ray technology
and detects also contaminants in the
pellet. The smallest detectable particle
size is 50μm, at a throughput of up to
500kg/h. Higher throughput is possible
by installing several units in parallel.
In addition, the pellet inspection is
installed directly in the joint tube between
the silo/octabin and the extruder. The
system is therefore hermetically sealed
and there is zero risk that dust particles
can get into the material flow.
Sikora AG – Germany
Email:
Website:
Flawless pellets before
start of production