Static sieves are devices used to separate particles of different sizes in various industries, including food processing and pharmaceuticals. They consist of a mesh or perforated surface that allows smaller particles to pass through while retaining larger ones. This separation process is essential for ensuring product quality and consistency. These sieves operate without any moving parts, relying on gravity and the natural flow of materials. Static sieves can be made from various materials, such as stainless steel or plastic, and are often used in conjunction with other equipment like vibrating screens or conveyor belts to enhance efficiency in sorting processes.