Leistritz Film Extrusion
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FILM EXTRUSION Extruders and extrusion lines

DIRECT EXTRUSION PRODUCT DIVERSITY Twin screw extruders - the energy-efficient melting machine Standard compounding process (multi-stage): raw material ➔ film flat film Direct extrusion (single-stage): raw material ➔ film Energy savings of up to 40% possible (depending on the process) compounder flat film Direct extrusion or inline-compounding facilitates the production of extruded parts in a very economical way by merging various process steps. The stage after the compounding step is shaping. Here the extrudate is processed to semi-finished products. Typical examples of this process are...

CALENDER FILM Processing recycled and virgin material For the production of calender films, the pellets are first melted in the extruder. A wide slot die then directs the melt onto a calender stack. Compared with using a single screw, this process enables high production speeds and a good homogeneity of the film. The polymers processed in this way include virtually all materials that can be processed thermoplastically. A film thickness of 150 µm or more is possible. Example of a PET film extrusion line with main components in the extrusion process and more by eliminating entire process...

BIAXIALLY ORIENTED FILMS BOPA High-performance films for packaging and technical applications These films are extruded through a wide slot die onto a large rotating roll - a so-called chill roll - and are then biaxially stretched, i.e. the film is stretched in both longitudinal and transverse direction. Thereby, its properties (firmness, barrier function, transparency) can exactly be determined. After extrusion, the melt is cooled down quickly in order to either remain in the amorphous phase or attain a fine-crystalline state, depending on the Just like PET, polyamide is hygroscopic - this...

90° Diverter on a frame The 90° diverter can be installed subsequent to the material discharge adapter. This enables optimal adaptation to the spatial requirements and direct access to the chill roll. The screws can be removed easily. SPECIAL FEATURES Additional extras for film production Longitudinal compensation system Control unit Extruders and extruder components expand when heated. As a result, the extruder length changes, which leads to stresses in the downstream equipment. Leistritz has developed the perfect solution for you! The longitudinal compensation system absorbs the thermal...

ZSE MAXX SERIES FOR FILM APPLICATION The system for maXXimum possibilities ^ M aXx ZSE MAXX series is the largest twin screw extruder range with continuous OD/ID and high torque, which enormously facilitates upscaling from small machines to large production plants. Extrusion Technology

Leistritz Advanced Technologies Corp., Somerville, NJ Headquarters Leistritz Extrusionstechnik GmbH, Nuremberg Leistritz Machinery (Taicang) Co., Ltd. Taicang Leistritz Italia Estrusione, Leistritz France Extrusion, Leistritz SEA Pte Ltd., Castellanza Ceyzeriat Singapore ^ Leistritz Extrusionstechnik GmbH | MarkgrafenstraBe 36-39 | 90459 Nuremberg | Germany T +49 911 4306-0 | extruder@leistritz.com www.leistritz.com LEX-5 en 10/19 0,5' fl