Circular Vibrating Screen

High-Capacity Circular Vibrating Screen for Mining and Aggregates

The Circular Vibrating Screen (often referred to as an Inclined Vibrating Screen) is a classic, highly efficient screening machine designed to separate crushed rocks, ores, and aggregates by size. It generates a circular or elliptical vibration trajectory, which provides an excellent throwing angle that prevents material from plugging the screen holes (pegging) while moving it quickly down the deck.

As a core piece of Aggregate Screening Equipment, it is typically positioned after a Jaw Crusher or Cone Crusher. It classifies the crushed output into multiple commercial sizes simultaneously, returning oversized rocks back to the crushers to form a closed-circuit crushing plant.

Built with a heavy-duty riveted frame, external eccentric shaft exciters, and premium vibration-damping springs, our Mining Vibrating Screen delivers massive processing capacity, accurate grading, and a long service life with minimal maintenance.

Core Advantages of Our Rock Screen Machine

• High-Efficiency Circular Motion: The elliptical/circular vibration trajectory forcefully tosses the material upward and forward. This stratifies the material bed quickly, allowing fine particles to pass through the mesh while keeping near-size rocks from wedging in the holes.
• Multi-Deck Configuration: Available in 2, 3, or 4-deck configurations. A single machine can accurately classify raw material into 3 to 5 distinct final product sizes simultaneously, drastically reducing plant footprint.
• Durable Riveted Frame: The main screen box is assembled using cold-riveted Huck bolts instead of welding. This eliminates internal welding stress and increases the fatigue strength of the frame by 50%, guaranteeing over 10 years of reliable operation.
• Adjustable Amplitude: Features a block-type eccentric exciter. Operators can easily adjust the counterweights to change the vibration amplitude (3-8mm) based on the specific weight and moisture of the ore.

How a Circular Vibrating Screen Works

The screen box is mounted on heavy-duty springs at a downward angle (usually 15° to 20°).

1. Vibration Generation: The electric motor drives the eccentric shaft or block exciter via a V-belt, forcing the entire screen box to vibrate in a continuous circular motion.
2. Material Stratification: As material feeds onto the upper deck, the intense vibration causes larger rocks to rise to the top of the material bed, while finer particles sift down to the bottom.
3. Sizing & Discharge: Particles smaller than the mesh aperture fall through to the lower deck. The oversized material bounces forward along the inclined screen surface and discharges out the front chute.

Industry Applications

Because of its high throughput, this screen is an absolute necessity in:

• Aggregate Production: Grading crushed stone, gravel, and manufactured sand into specific commercial sizes (e.g., 0-5mm, 5-10mm, 10-20mm).
• Hard Rock Mining: Pre-screening ore before it enters secondary crushers to prevent crusher overload, or classifying closed-circuit grinding output.
• Coal Processing: Dry screening of raw lump coal and separating coal gangue.

Technical Specifications (YK Series)

We offer the YK series screens with various deck options (2YK for double deck, 3YK for triple deck, 4YK for quad deck). Below are the standard specifications for our 3-deck and 4-deck models. We can customize the screen mesh (Polyurethane, Manganese woven wire, or Punched steel) to suit your material.

Frequently Asked Questions (FAQ)