Common specifications of silica sand are: 1-2mm, 2-4mm, 4-8mm, 8-16mm, 16-32mm, 10-20 mesh, 20-40 mesh, 40-80 mesh, 100-120 mesh, 200 mesh, 325 mesh. Silica Sand Processing Plant Silica sand process flow. There are five main processes including Feeding, Crushing, Sand making, Screening and Washing for silica sand …