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MACHINERY NEWS

No more spider weld lines
Sekisui

A new spiderless foam sheet die from US extrusion machine maker Davis-Standard improves processing of PS and PE materials for commodity and high-end foam sheet markets. The new die supports an extensive range of sheet thickness, widths and densities. It is also engineered to reduce downtime and maintenance while offering precision capabilities to improve quality and efficiency, says the firm.

The spiderless die eliminates spider weld lines and provides a uniform basis weight and thickness over the entire sheet width. This results in a better yield and eliminates the need for edge trim. Other advantages include streamlined flow channels, up to three zones of temperature control, nickel plating on all wetted surfaces, and aluminum constructed internal and external air rings.

Die designs are capable of thicknesses from 1-12 mm thick and for widths from 600-3,048 mm.