The ATS tumbling screener is a high-efficiency screening machine designed for the classification and dedusting of dry materials, powders, or granular products, including very fine or lightweight materials.
Thanks to its three-dimensional oscillating motion—similar to manual sieving—it guarantees separation efficiency of up to 99% and higher throughput compared to traditional vibratory systems, with the same screening surface.

Operating Principle

The nutating motion is generated by an asynchronous motor with belt transmission, which imparts an eccentric displacement combined with radial and tangential inclination to the screening deck.

This three-dimensional motion causes the material to move in a spiral pattern across the screen mesh, sliding rather than bouncing as occurs in vibratory screeners. As a result:

• product residence time on the screening surface is increased;
• separation accuracy is improved;
• breakage of fragile or delicate particles is reduced;
• significantly higher hourly throughput is achieved.

The result is a gentle yet extremely efficient screening process, ideal for “difficult” products or materials sensitive to vibration, such as flours, mineral powders, metal powders, and food or pharmaceutical products.

Construction Features

• Adjustable three-dimensional motion (variable amplitude and speed to suit the processed material);
• Modular structure with 1 to 4 stacked screening decks;
• Automatic screen cleaning systems using bouncing balls, sliders, or ultrasonic devices to prevent clogging and maintain consistent productivity;
• Product-contact parts available in AISI 304, AISI 316 stainless steel, or painted carbon steel, depending on the application and industry;
• Fully enclosed, dust-tight cover ensuring safe and dust-free operation.

Operational Advantages

• Higher separation efficiency, even with fine mesh sizes;
• No product damage thanks to a gentle and controlled screening process;
• Low maintenance requirements and long component service life;
• Suitable for food, pharmaceutical, chemical, metallurgical, and manufacturing production lines;
• Multi-stage configuration for separating multiple particle size fractions in a single process cycle.

Conclusion

The ATS tumblig screener represents the ideal solution for companies requiring high performance, precise separation, and gentle processing, with a strong focus on final product quality and operational continuity.
Thanks to its three-dimensional motion and robust construction, it is one of the most versatile, reliable, and quiet screening systems available on the market today.