Centrifugal sifters achieve high throughput
GS centrifugal sifters (photo) automatically separate powders, granules and other dry, bulk materials into two product streams at a throughput rate up to 300% higher than common flat-deck sieves on the same footprint using identical screens, materials and cut points, says the company. Featuring a proprietary design with a rotating paddle assembly, the sifters direct fine particles through a mesh screen and divert oversized particles to the discharge using only centrifugal force and gravity. The centrifugal sifters typically achieve 99.9% efficiency, versus 85% efficiency for flat-deck sieves given the same inputs without requiring the vibration, shaking or gyration that sieves typically require to process the material. The rotary sieve comes in a choice of carbon-steel or stainless-steel construction, with screen mesh sizes from 100 to 4,000 μm and throughput rates up to 120 ton/h. Four standard models and custom designs are available to suit sanitary, non-hazardous and hazardous ATEX environments. — Gericke USA, Inc., Somerset, N.J.