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Powder/Bulk Solids

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Continuous Weigh Feeders

May 13, 2008
Better-Weigh continuous feeders provide gravimetric feeding of dry bulk materials where it is necessary to determine actual feed rates on a loss-of-weight basis. Available in seven models with feed rates from 1 to 550 cu ft/hr (larger sizes are available), these units are designed to provide feeding in either batch or continuous mode depending on the arrangement of the feeder's control electronics. In batch mode, the batch controller is used to control the fast (bulk) and slow (dribble) speeds of the feeder. Accuracies of ±0.5% can be easily achieved with batches that weigh 2 lb or less, while accuracies of ±0.25% can be achieved with batches that weigh 3 lb or more with time spans of 30 to 90 seconds. In continuous mode, the feeder's electronic controller is used to constantly monitor loss of material weight per time in order to maintain a continuous loss of weight with an accuracy of ±0.25% to 0.50%. Standard features include a platform or lever balance scale, a sealed tactile keyboard, a seven-digit numerical keyboard, automatic manual batching, and a 2- or 5-cu-ft hopper. Sanitary construction is also available.
Metalfab Inc., Vernon, NJ 800-764-2999 www.metalfabinc.com