The strength and size uniformity of fertilizer granules directly affect spreading performance and product appearance. Indonesia, as a major agricultural country in Southeast Asia, produces and imports large volumes of compound fertilizer, urea, and organic fertilizer. Meanwhile, Kazakhstan’s growing infrastructure and residential projects are driving rapid demand for dry mortar, putty powder, and self-leveling materials. Both industries share a common challenge: achieving precise particle size separation under high throughput while minimizing granule breakage. The FY series square gyratory sifter is purpose-built for exactly these conditions.
The FY sifter’s screen box performs a near-circular planar rotation, feeding material from the center and spreading it gently outward in a spiral path across the mesh surface. This imitated hand-sifting motion gives particles longer contact time with the screen and much gentler forces compared with high-frequency vibratory screens. Granules remain intact, preserving the compressive strength of fertilizer products. At the same time, the large square screen surface and multi-deck configuration enable processing from several to over ten tons per hour, with a single machine delivering multiple size fractions simultaneously.
In Indonesia’s fertilizer plants, the FY gyratory sifter handles finished product grading, oversize recycling, and post-coating screening of compound fertilizer granules. Its fully enclosed structure reduces fertilizer dust pollution in the workshop and lowers the risk of dust explosion. For Kazakhstan’s dry mortar producers, the FY machine provides stable classification of quartz sand, river sand, and manufactured sand, separating different particle sizes to meet specific mortar formulations. Multiple screen decks allow coarse, medium, and fine fractions to be obtained in one pass, significantly simplifying the production flow.
With low drive power, low operating noise, and dynamic loads far below those of equivalent-capacity vibrating screens, the FY gyratory sifter can be installed without heavy foundations, making it ideal for retrofitting existing plants. The built-in bouncing ball cleaning system keeps meshes clear and reduces downtime for manual cleaning. THZD can customize screen deck numbers, materials, and feeding configurations, with explosion-proof options available for special conditions. For companies looking to increase output, reduce breakage, and cut maintenance costs in fertilizer or dry mortar production, the FY square gyratory sifter is a solution worth serious evaluation.
