Single-Screw Pumps Serve Twin-Screw Extruders.(Leistritz)(Brief Article)(Product Announcement)

A new series at twin-screw extrusion systems from Leistritz is designed to continuously mix and devolatilize polymers with fillers and additives in combination with direct wire-coating extrusion.

A key component in the equipment package is a 10-to-1 L/D single-screw pump front-end attachment designed to build and stabilize pressure to the wire-coating, or alternative, die, says Leistritz. The single-screw pump is directly mated at a 90[degrees] angle to facilitate pressure generation at its inlet, and the barrel uses liquid cooling for controlled heat transfer capabilit