In contemporary civil engineering and infrastructure development, the physical property thresholds of raw materials dictate the structural integrity, load-bearing capacity, and ultimate longevity of constructed facilities. Among these raw components, fine aggregate sand serves as the foundational matrix in concrete formulation, masonry mortar, and structural plastering layouts. However, terrigenous or alluvial sand extracted from natural riverbeds or open-pit quarries consistently exhibits high volume fractions of undesirable oversized particulates, including macro-pebbles, lithic gravel fragments, and organic debris. If unmitigated, these inclusions manifest as localized stress concentrators and moisture traps within cured concrete, severely undermining its structural viability.

To systematically bypass the extreme time latencies and prohibitive operational labor costs associated with traditional static, manual mesh-sifting methods, this study details the design, kinematic modeling, structural fabrication, and empirical testing of an automated, electrically driven reciprocating sand filtration machine. The mechanical architecture relies on an integrated crank-rocker linkage framework engineered to convert high-torque rotary input into single-axis linear translation across an inclined screening mesh set at an optimal slope angle of 10 degrees. Powered by an efficient direct-current motor coupled with an electronic pulse-width modulation speed controller, the prototype achieves high-throughput particle separation based on predefined geometric tolerances. Extensive field testing confirms a substantial enhancement in output sand uniformity, a notable reduction in cycle time metrics, and complete alignment with eco-friendly design criteria.