Product Overview

Gyratory Screener is a standard fine screening equipment. The force generated by its drive unit forms a reciprocating inertial force through the rotation of an eccentric wheel around a fixed axis. Driven by this inertial force, the screen box moves back and forth, causing the materials on the screen surface to move forward in a directional jumping manner. Materials smaller than the screen mesh aperture pass through the screen to the lower layer, while those larger than the aperture keep rolling and jumping until discharged from the outlet, thus completing the screening operation.

Product Features  

Operating Principle

The Gyratory Screener adopts a reciprocating rotary motion and a slightly inclined screen surface. Materials form a circular motion at the feed inlet to achieve rapid dispersion and stratification, an elliptical motion in the middle of the screen box for effective screening allowing fine particles to pass quickly, and an approximately linear motion at the discharge end to push oversize particles rapidly toward the outlet. It integrates three motion trajectories: circular, elliptical and linear.

Screen Structure

The exciter of the gyratory screener is equipped with counterweights to balance the inertial force in the forward and backward directions during the movement of the screen box. The whole machine runs stably without obvious concentrated stress, prolonging its service life.In addition, the fine screen is fitted with a self-cleaning screen system to keep the screen surface clean and free from clogging, ensuring high-standard screening efficiency. An automatic screen tensioning device maintains uniform tension on the screen mesh, keeping the screen surface taut at all times and greatly improving screening performance. Materials are rapidly dispersed and pass through the screen with almost no vertical vibration or jumping, resulting in low impact on the screen mesh. The service life of the screen mesh is about 2–3 times longer than that of ordinary vibrating screens.The quick-install and quick-open screen cover system makes inspection and observation more efficient and convenient.

Screening Performance

Thanks to the combination of circular, elliptical and linear motion trajectories, materials move spirally on the screen surface with long contact time and continuous rolling on the mesh without damaging their original structure. This leads to a high passing probability, excellent screening effect, high output and high screening accuracy, making it suitable for screening and classifying a wide variety of materials.

Operating Environment

The Gyratory Screener adopts a dynamic balancing system, ensuring stable operation and low noise. Its suspended mounting structure produces no direct impact on the ground. The fully enclosed structure is pollution-free.

Technical Parameter