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Contact
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Karlheinz Weinmann
Brückner Technology Holding GmbH
Königsberger Str. 5-7
83313 Siegsdorf
Phone: +49 8662 63-9278
Mobile: +49 160 7424167
Fax: +49 8662 63-9101
E-mail: karlheinz.weinmann@brueckner.com |
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In film stretching lines, the cast film derived from plastic granulate by means of extrusion is stretched in longitudinal and transverse direction to attain the required film dimensions.
This film is then processed either sequentially or simultaneously in order to obtain a very thin, high-rigid end film. Sequential lines first stretch the cast film in machine direction through a system of rollers. Then the film enters the tenter, an oven-like device, which uses two endless chains to grip and stretch the web in transverse direction on diverting rails.
Simultaneous film lines stretch the film in both directions at the same time. The limited yield and inflexibility of mechanical solutions led to the development of LISIM® technology, which uses linear motors driving clips without chain connections. This drive principle allows a new level of freedom to be obtained when manufacturing high quality film in fast and extremely flexible production. |
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