Where the YK circular vibrating screen fits
The circular vibrating screen is the standard sizing machine in dry crushing circuits. It usually follows a cone crusher, splitting the product into on-size grinding feed and oversize that returns to the crusher in closed circuit. The YK series uses an inclined deck and a rotating eccentric to generate a circular throw, which is efficient at scalping and sizing coarse, dry material.
How it works
An eccentric shaft and counterweights spin to drive the screen box in a circular orbit, typically inclined 15-25 degrees. The circular motion tosses material forward and stratifies the bed so heavy fines settle and pass through the aperture while oversize travels to discharge. Single, double or triple decks let one machine produce two, three or four size fractions at once.
Selection logic
Screen area is driven by the tonnage to each cut, the near-size content and whether the duty is wet or dry. As a rule of thumb, the finer the cut and the more near-size material, the more screen area you need, because near-mesh particles are the hardest to pass. Xinhai sizes deck area, stroke and inclination to your gradation, and offers polyurethane, woven-wire or perforated-plate media to balance open area against wear life.
- Circular throw from an eccentric shaft, efficient on coarse dry feed
- Single to triple deck for multiple fractions
- Adjustable stroke and inclination
- Polyurethane, wire-mesh or steel screen media
Wet vs dry and screen media
For wet sizing or fine cuts in slurry, a linear or high-frequency screen may suit better, but for dry, coarse classification after crushing the circular screen is the cost-effective choice. The biggest operating issues are blinding and pegging on near-size and damp feed; polyurethane media with tapered apertures resists both and lasts longer than wire on abrasive ore. Matching media open area to the cut also matters: too little open area chokes capacity, while too much can pass oversize, so the media specification is part of the sizing work, not an afterthought.
For rotary washing of placer ore see the gold trommel screen, and browse all screening equipment. Screening is the control point of any closed crushing circuit, so for help sizing decks and media to your gradation, contact our engineers.
Technical Specifications
| Capacity | 10-600 t/h (configurable) |
|---|---|
| Decks | 1-3 (single to triple) |
| Aperture range | 3-100 mm (customizable) |
| Motion | Circular, eccentric-shaft driven |
| Inclination | 15-25 degrees, adjustable |
| Motor power | 3-30 kW |
| Screen media | Polyurethane, woven wire, perforated plate |
| Application | Dry/wet sizing of crushed ore, sand, aggregate |
| Customization | OEM / ODM, sized to your gradation |
Frequently Asked Questions
What is the difference between a circular and a linear vibrating screen?
A circular vibrating screen uses an eccentric shaft to throw material in a circular orbit on an inclined deck, ideal for coarse, dry sizing and scalping. A linear screen vibrates back and forth on a near-horizontal deck, better for fine wet cuts and dewatering. The YK circular type suits most post-crushing sizing duties.
How do I stop the screen from blinding or pegging?
Blinding and pegging are worst on damp, near-size feed. Using polyurethane media with tapered or self-cleaning apertures, increasing the stroke, and keeping feed moisture low all help. Xinhai can specify media type and aperture geometry for your material so the screen stays open and maintains its rated efficiency.
Can the circular vibrating screen handle wet material?
Yes, with spray bars it can wet-screen, though for very fine wet cuts a high-frequency or linear screen is more efficient. For dry, coarse classification after crushing the circular screen is the most cost-effective option. We can fit spray manifolds and select media suited to wet duty if your circuit requires it.
How many decks should I choose?
Choose decks by how many size fractions you need. A single deck makes one split (oversize/undersize); double and triple decks produce three or four products in one pass, which saves space and equipment in a screening house. Xinhai builds single to triple-deck YK screens and sizes total deck area to your tonnage and cuts.
