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Variable Flow Rate Bulk Bag Unloader

March 24, 2009

This variable flow rate bulk bag unloader is designed to provide an efficient and continuous discharge of material from bulk bags with the ability to regulate or stop the flow in accordance with system requirements. The patent-pending unit provides controlled and variable flow from bulk bags without the need for a separate feeder or conveyor. This reduces cost, overall system height, and complication of the design. Two vibrators mounted on opposite sides of the unloaderís support hopper create movement of material through an integral sealed feed tube. When vibration is stopped, bag discharge and material feed immediately cease without the need for additional valves. During discharge, feed rate can be pre-set to a constant rate or varied with an optional inverter control. The unit can be run volumetrically or equipped with load cells for precision batching by weight.
Vibra Screw Inc., Totowa, NJ 973-256-7410 www.vibrascrew.com