Eriez Patented "High Deflection" Series Feeders Available in Four Models Handle Fine Powders and Leafy Products Erie, PA, May 6, 2014 (GLOBE NEWSWIRE) -- The patented Eriez® Model HD "High Deflection" Vibratory Feeder combines the higher deflection of up to 3/16-inch (4.8mm) and lower frequency (30 cps)...