High Capacity Double Deck Vibrating Screen

High Capacity Double Deck Vibrating Screen is an industrial screening machine used for classification and separation of ores, coal, and other bulk materials. The equipment structure includes a screen box, double-layer screen mesh, vibration exciter, damping support system, and drive motor. The double deck design separates feed material into coarse, medium, and fine particle sizes during one screening process, with screen aperture sizes ranging from 0.074 mm to over 50 mm. Processing capacity of a single unit ranges from 50 to 500 tons per hour, and screening accuracy can reach 90%–98%. Common equipment types include the YK series and DZSF series used in mining, quarry, and bulk material processing systems.

Working Principle of the High Capacity Double Deck Vibrating Screen

The working principle of the High Capacity Double Deck Vibrating Screen varies slightly between the YK series and DZSF series due to different vibration systems. The YK series double deck vibrating screen uses an eccentric shaft or eccentric block exciter. When the motor operates, the screen box performs near-circular vibration, causing material to be lifted and distributed forward across the screen surface. Fine particles pass through the upper and lower screen meshes step by step, forming coarse, medium, and fine size fractions during the screening process, which supports large-capacity material screening. The DZSF series double deck vibrating screen uses two vibration motors rotating in opposite directions to generate linear motion. Materials move in a jumping linear path on the screen surface, while the upper and lower screen meshes complete continuous size classification, which is suitable for fine particle separation and higher screening accuracy in mining and bulk material processing systems.

What are the advantages of using a High Capacity Double Deck Vibrating Screen?

High Capacity Double Deck Vibrating Screen provides a double-layer screen structure that increases screening area within the same installation footprint. The upper and lower screen meshes allow material to be separated into three particle size groups during one screening process, which simplifies production flow in mining and bulk material processing plants. Strong vibration motion helps materials move across the screen surface and reduces the chance of material accumulation in the screen apertures. The equipment structure is built with heavy-duty box beams and welded steel plates designed for continuous operation with large feed materials. This structure supports stable vibration motion and long operating periods, with typical service life ranging from 8 to 10 years in mining, coal, and aggregate screening systems.

High Capacity Double Deck Vibrating Screen Types

Different types of High Capacity Double Deck Vibrating Screen show different screening capacity and particle size classification performance. Common equipment types include the YK series circular vibrating screen and the DZSF series linear vibrating screen. The selection of a suitable model depends on material properties, particle size range, moisture content, and production capacity requirements in mining, coal, and aggregate processing plants.

The YK series double deck vibrating screen uses a circular vibration system with the vibration exciter positioned above the center of gravity of the screen box. The screen box adopts a beam structure with strong resistance to impact from large feed materials. The screen surface inclination usually ranges from 15° to 25°, allowing materials to move across the screen surface with strong throwing motion. This design is suitable for screening coarse particles and high-density ores that require rapid dispersion and discharge. When processing medium particle size rock or ore, the unit area throughput of the YK series can reach about 100–500 tons per hour depending on screen size and feed conditions.

The DZSF series double deck vibrating screen uses two vibration motors to generate linear motion across the screen surface. The screen inclination generally ranges from 0° to 15°. This structure is suitable for classification, dewatering, and desliming of medium and fine particle materials. When processing dry fine particles or materials that require washing, the DZSF series provides balanced screening capacity and particle size separation. For large and high-density materials, the processing capacity is lower than that of the same size YK circular vibrating screen, with typical throughput ranging from 50 to 200 tons per hour.

High Capacity Double Deck Vibrating Screen Specifications

High Capacity Double Deck Vibrating Screen Applications

High Capacity Double Deck Vibrating Screen is used in mineral processing and bulk material screening for separation of different particle sizes. In mining operations, the equipment is installed after crushing for pre-screening or inspection screening of ores, separating crushed stone and tailings into different size fractions. In sand and aggregate production lines, the double deck vibrating screen classifies crushed materials into multiple particle size grades that meet construction specifications. In the coal industry, it is used for raw coal classification, desliming, and screening of washed coal products. This screening machine is also used in metallurgy, chemical processing, building materials production, power plants, road construction, waste treatment, and recycling plants where large volumes of bulk materials require particle size separation.

High Capacity Double Deck Vibrating Screen is used for large capacity material screening in mining, aggregate, and bulk material processing plants. Dahan Machinery has more than 15 years of experience in vibrating equipment manufacturing, with production processes that include CNC cutting and automated welding for structural components. The vibration exciter undergoes dynamic balance testing before assembly, allowing stable motion and controlled operating noise during screening operations. The screen box is manufactured from high-strength and fatigue-resistant steel plates, and multiple screen media options are available, including woven wire mesh, perforated plates, and polyurethane screen panels. Equipment configuration can be adjusted according to material characteristics, production capacity requirements, and installation conditions, supporting continuous operation in large-scale industrial material screening systems.