feeder machine 1)high efficiency. 2)simple ang firm ... various specifications in quarries.Characterized by its realiable structure,powerful exciter,high screening effciency,low noise,simple maintance, ... .4.This circular vibrating screen is of small swing,high efficiency,large working capabilty,long service life, ... )Motor power(kw)VIbrating frequency(r/min)Double swing(mm)2YA12373700*1200 2 3-100 400 10- ...