vibratory bowl feeders are common devices used to feed individual component parts for assembly on industrial production lines. they are used when a randomly sorted bulk package of small components must be fed into another machine one-by-one, oriented in a particular direction.vibratory feeders rely on the mechanical behavior of a part, such that when gently shaken down a conveyor chute that is shaped to fit the part, they will gradually be shaken so that they are all aligned. they thus leave the feeder's conveyor one-by-one, all in the same orientation. this conveyor then leads directly to the following assembly or packing machine.