One of the most usual vibratory equipment applications is as feeder for granular bulk material. In two distinctive forms: as mechanical and as electromagnetic vibratory feeder.Normally they are placed under a silo, deposit or bin, redirecting the material stream onto belt conveyors, screw conveyors, screeners, vibratory conveyors etc.

They are limited to a width of aprox. 3.000 mm and a lenght of maximum 2000 mm. The output may reach 2000t/h.

Weighing systems normally use this kind of equipment, as double speed dosing feeders (batching and adjustment) and as dynamic emptying gates for the scale´s bin. They are strong substitutes for screw feeders for their simplicity and for having no rotating parts in the sometimes abrasive material stream.

The speed may be adjusted over voltage controllers (by hand or via a PLC) and by a frequency inverter in case of electromechanical vibratory drives.

They are known as ELMAVI electromagnetic feeders and VICAL-A feeders, respectively.