This Y series vibrating screen is vibrated by the circling motion. It is high efficient screen for filter materials into multiple grade according to the gravel size. For the compact structure and the convenient installation, it is the ideal screening device for prefilter of the feed materials before the primary crushing in the quarry site, it also can be used as separation and filtration solely. The vibrating screen adopts cylinder type eccentric shaft vibrator and partial block to adjust the amplitude. The materiel sieve drip line is long and more sieving specifications. The circular vibrating screen can also be used for production classifying in quarry, mine, construction, electricity, chemical industry,etc.