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AboutXinxiang Min Sheng Machinery Co., Ltd. is a professional manufacturer specializing in the production of crushing, screening, filtering, feeding, and conveying equipment, providing both individual machines and complete plant solutions.
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What's the difference between a square oscillating screen and a flat rotary screen?
2025-12-08
Square oscillating screens and planar rotary screens are two common types of industrial screening equipment, and they exhibit significant differences in their operating principles, performance characteristics, and application scenarios. The following provides a comparative analysis from multiple perspectives:
How it works and Motion trajectory
- Square Swing Screen : Utilizing a rotary oscillating motion, the screening box moves in an arc-shaped path horizontally, while the screen surface simultaneously tilts and swings, creating a three-dimensional elliptical trajectory. This causes the material to perform directional, hopping movements across the screen surface, mimicking the action of manual sieving.
- Flat Rotary Screen : The screen surface performs a reciprocating rotary motion in the horizontal direction, causing the material to move forward in a spiral pattern across the screen—virtually eliminating vertical vibration. This gentler mode of motion makes it ideal for handling fragile or sticky materials.
Screening Efficiency and Accuracy
- Processing Capacity : The square oscillating screen boasts a large effective screening area—exceeding 90% of its footprint—and features no dead corners, resulting in a significantly higher throughput compared to similarly sized planar rotary screens. For instance, a 1.2×1.2-meter square oscillating screen can process 50 to 60 tons per day, which is 2 to 3 times greater than that of a comparable planar rotary screen.
- Screening accuracy : The square oscillating screen maintains a stable accuracy of 92%-98%, making it ideal for high-precision applications (such as pharmaceuticals and food products). Meanwhile, the flat rotary screen boasts an accuracy error that can be controlled within ±1%, offering superior adaptability to materials that tend to clump or have uneven particle sizes.
Equipment Structure and Maintenance
- Structural Design : Square swing screens typically feature open-type rectangular screen boxes, allowing for the arrangement of multiple layers of mesh and maximizing space utilization. Meanwhile, planar rotary screens boast a compact design and come equipped with a quick-mesh-changing system, making maintenance exceptionally convenient.
- Maintenance costs : Square swing screens have a longer screen mesh lifespan (more than 30% longer than circular screens), but they consume higher energy; in contrast, flat rotary screens use less energy (with motor power 30%-50% lower than vibration screens), though their screen meshes require regular replacement due to wear.
Applicable Scenarios and Material Characteristics
- Square Swing Screen : Suitable for materials with small particle sizes and high-precision requirements (such as chemical powders and metallurgical raw materials), especially in scenarios demanding large-scale production.
- Flat Rotary Screen : Suitable for fragile, sticky, or unevenly sized materials (such as plastic pellets and food additives), making it more cost-effective for small to medium-scale production.
Noise and Environmental Protection
- Square Swing Screen : The noise level is relatively high (usually above 85 decibels), so soundproofing measures should be considered.
- Flat Rotary Screen : Noise levels are kept below 70 decibels, better aligning with environmental protection requirements.
Summary recommendations
- Choose a square vibrating screen : If you're aiming for high throughput, high precision, with fine particle size and large-scale production.
- Choose a rotary screen : If the material is fragile, sticky, or requires gentle screening, and energy efficiency and low noise levels are prioritized.
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Xinxiang Min Sheng Machinery Co., Ltd
Mobile phone:+86-13007666090
Mobile phone:+86-13007666080
Email:hnfqjx@126.com
Address: No. 169, Chenbao Industrial Park, Xinhui Road, Xinxiang City, Henan Province
Email：hnfqjx@126.com
Phone：+86-(0)373-5436888
WhatsApp：8613007666090
Mobile phone：+86-13007666080
Mobile phone：+86-13007666090