Die Heads – Multilayer

The Rollepaal Multilayer Die heads (RMD) have a revolutionary design for improved performance, based on the principle of symmetrical branching of the melt feed for the layers. Symmetry in melt feed guarantees the best layer distribution, as all the flow lines have equal length. It makes the die independent of melt viscosity, as there is no need for a restrictor gap with different length in circumferential direction for correction. The design features a symmetrical split of short round channels per disc, eliminating leakage. Cleaning, if needed, is easy as the channels have a round shape and short length, and are perfectly accessible. Fitness for production is the key issue for the Rollepaal RMD dies, contributing to a more effective and efficient use of an extrusion line. Therefore the RMD design has furthermore been focused on Double Compression tooling, Modular set up and Quick ToolChange.

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