An energy-saving, high-speed infrared resin dryer, originally designed for high-volume processing will soon be available in a version for smaller throughputs. The new Basic Infrared Rotary Drum (B-IRD) system for injection molders was shown at the International Plastics Fair (IPF) in Tokyo last fall by Sojitz Machinery Corp., Osaka, Japan. Resin passes through a slowly rotating drum, which contains infrared (IR) heat lamps and a stream of ambient air to carry off the moisture emitted. It reportedly provides energy savings from 20% to 65% while reducing resin drying times from hours to minutes. For example, Sojitz claims that ABS with 0.25% moisture content can be dried to less than 0.1% in 3 min, compared with 3 hr in conventional drying systems. The compact unit processes 22 to 110 lb/hr. Novatec, Inc., Baltimore, is licensed to use the same patented technology as Sojitz, with which it has a working relationship. Novatec introduced IRD crystallizer/dryer models in 2006 with throughputs of 400 to 4000 lb/hr, intended mainly for PET regrind. Novatec plans to introduce an expanded line at NPE 2009 in Chicago this June. It will include smaller models, though of a design somewhat different from Sojitz’s. (410) 789-4811 • www.novatec.com
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