Circular throw, multiple decks and modular screen media — the workhorse for aggregate and ore classification.
YK / YZ Series Circular Vibrating Screen · 34 models
Click a model for specifications, applications, selection guidance and FAQs.
The heart of a circular vibrating screen is the vibrator. The motor drives a shaft carrying eccentric weights through V-belts; the centrifugal force makes the screen box vibrate in a circular path. Feed entering at the feed end is repeatedly tossed and moved forward by the combination of vibration and gravity.
During each toss, fine particles work down through the bed, reach the deck and pass through as undersize; coarse particles stay on the deck and travel to the discharge end. Deck inclination, amplitude, frequency and the number of decks together determine efficiency and capacity.
Blinding usually comes from three things: high moisture, platy particles or the wrong media. Remedies include switching to polyurethane or rubber media, increasing amplitude, steepening the deck angle, fitting bouncing balls or an ultrasonic de-blinding system, and drying or de-sliming the feed before screening.
Woven wire typically lasts 1–3 months on limestone aggregate and only 2–6 weeks on abrasive granite; polyurethane lasts three to five times longer than wire but has a slightly lower open area. Judge the change point by coarse material reporting to undersize.
No. More decks mean smaller individual deck areas and harder stratification, so efficiency falls deck by deck, with heavy load upstairs and coarse leakage downstairs. Two or three decks are usually enough for aggregates; if four or more fractions are needed, two screens in series or parallel beat one four-deck unit.
Send us the material type, feed size, target capacity and product requirement, and we will recommend models, propose a plant configuration and quote factory-direct.