A side-fed, multilayer die from Battenfeld Extrusionstechnik GmbH allows the extrusion of materials with high residence time and temperatures, even at low-mass flow rates, and ensures accurate wall-thickness distribution.
Materials with special barrier, optical, mechanical or thermal properties are in demand for plastic pipes. But often, those types of materials are highly sensitive to thermal and mechanical stress. Battenfeld said with conventional dies, such as spiral mandrel dies, these materials cannot be processed.
Battenfeld's side-fed die allows an optimal melt distribution into a circular ring geometry, for further distribution in a short period of time. A coat-hanger manifold, followed by a geometry of twin center sleeves, ensures symmetrical distribution of pressure inside the die, for automatic centering of the mandrel.
Battenfeld Extrusionstechnik is based in Bad Oeynhausen, Germany.
Tel. +49-5731-2420, fax +49-5731-27124, e-mail [email protected]