In Indonesia and Kazakhstan, mining and sand processing demand screening equipment that handles multiple tons per hour while maintaining tight cut points and minimal product loss. Whether it’s silica sand from Sumatra, tin tailings from Bangka, or limestone powder and copper concentrate from Kazakhstani operations, the requirement is the same: high capacity plus high precision. The FY series square gyratory sifter rethinks the screening motion entirely, making it a trusted workhorse for large-scale plants.
The FY sifter operates on a principle that imitates manual sieving. The screen box performs a near-circular planar rotation, creating a gentle tumbling motion that spreads material in a spiral path across the full screen surface. This keeps particles in contact with the mesh longer, allowing fine material to pass through efficiently while coarse particles travel steadily toward the outlet. With multiple decks installed, a single FY machine can classify several to over ten tons per hour into 4–6 fractions, often achieving screening efficiency above 90%.
For Indonesia’s silica sand industry, the FY gyratory sifter reliably handles sizing from 40 to 150 mesh. Fully enclosed wooden or stainless steel screen frames, combined with an internal bouncing ball cleaning system, prevent clogging and ensure long uninterrupted runs. The low dynamic load of the planar motion places minimal stress on support structures — a major advantage for washing plants mounted on steel platforms or lightweight foundations. In Kazakhstan, the same machine is widely used for limestone, dolomite, and copper powder classification, offering long screen life and minimal dust leakage to comply with tightening environmental standards.
THZD’s FY square gyratory sifter can be customized in terms of deck number, material, and feeding configuration, with explosion-proof options available for combustible dust. For operations looking to replace multiple vibrating screens with one energy-efficient, compact machine, the FY sifter is a high-value upgrade.
