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Circular Vibrating Screen

The circular vibrating screen is a high-efficiency, multi-deck screening machine featuring circular vibratory motion. Equipped with an external block eccentric vibrator and adjustable amplitude, it delivers a long screening path and versatile screening specifications. With reliable structure, powerful excitation, high screening efficiency, easy maintenance, and safe operation, it is widely applied for product classification in mining, building materials, transportation, energy, chemical, and other industries.

Circular Vibrating Screen

Key Benefits / Advantages

External Block Eccentricity Design

The vibrator adopts an external block eccentric structure. The resultant force generated by the vibrators on each side plate passes through the center of the side plate thickness, so that the side plates are subjected only to tensile and compressive stresses rather than bending moments, significantly improving the stress conditions of the side plates and the screen box.

Integrated Vibrator Unit

The vibrator is designed for integral assembly, making maintenance and replacement convenient. The bearing housing and eccentric blocks of the NJ vibrator feature a compact design, allowing the entire unit to be installed into the bore of the side plate. This eliminates the need to replace individual bearings, greatly shortening maintenance downtime and reducing maintenance costs.

Flexible Coupling Drive

The motor is connected to the vibrator through a flexible coupling. The motor is linked to the vibrator via a drive bearing housing, so the motor does not participate in vibration and its service life is ensured. The screen frequency can be conveniently adjusted by changing the pulley, resulting in smoother operation and an improved vibration trajectory.

Circular Vibrating Screen – Process And Applications

The circular vibrating screen is a high-capacity screening machine for the classification of medium to coarse bulk materials. Material moves across the inclined screen surface under circular motion, allowing fines to pass through the openings while oversize is conveyed to the discharge end.

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With up to four decks and adjustable vibration amplitude, the circular vibrating screen can be configured for a wide range of sizing duties. It is widely used in aggregate production, mining, and industrial mineral processing, where consistent throughput, efficient separation, and robust operation are required.

Its widespread use is driven by one key advantage: when correctly selected, the circular vibrating screen delivers a practical balance of capacity, screening efficiency, and operating reliability in demanding process conditions.

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Frequently Asked Questions

FAQ for Circular Vibrating Screen

The circular vibrating screen is driven by an exciter whose core components typically include an eccentric shaft or counterweight assembly. As the eccentric mechanism rotates, it generates centrifugal force that drives the screen body in a near-circular motion, creating a cyclic throwing action that continuously rolls, stratifies, and advances the material bed. Fine particles pass through the apertures during repeated throws, while coarse particles travel toward the discharge end for separation and shaping. By adjusting the screen inclination and stroke amplitude, the operator can optimize the balance between conveying speed, screening efficiency, and particle size control.
A circular vibrating screen uses circular motion and is generally more suitable for general-purpose screening and medium to coarse materials, while a linear vibrating screen uses linear motion and is typically applied in fine screening or applications requiring higher screening accuracy.
A circular vibrating screen is used for size classification of bulk materials in mining, aggregate, and industrial applications. It is commonly applied for screening sand, gravel, crushed stone, and ore, where reliable separation and consistent throughput are required.

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Technical Data of Circular Vibrating Screen

Model Screen Area (㎡) Inclination (°) Max. Feed Size (mm) Capacity (t/h) Power (kW) Weight (kg)
YKR1230 3.6 5~35 <300 43~216 7.5 2580
YKR1545 6.75 5~35 <300 86~432 15 5045
YKR1848 8.64 5~35 <300 97~486 18.5 5262
YKR1860 10.8 5~35 <300 113~567 22 5703
YKR2148 10.08 5~35 <300 108~540 22 6025
YKR2160 12.6 5~35 <300 126~630 30 6835
YKR2445 10.8 5~35 <300 116.1~648 30 6923
YKR2460 14.4 5~35 <300 172~864 37 9460

Note: Specifications are subject to change without notice due to ongoing product improvement.

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