china high capacity chute feeder with low price Product features: chute feeder is generally lifted on the port the ore bin. The bottom plate does reciprocating motions to make mine-supply. The frequency is 20-40 times per minute, and the stroke is 20-200 mm. The amount of mine-supply is determined by the size of stroke. The adjustment method for the stroke is to adjust the eccentric wheel of the drive device to adjust the amount of eccentric.