A sieve shaker is a laboratory device used to separate particles of different sizes by shaking a stack of sieves. Each sieve has a mesh with specific openings, allowing smaller particles to pass through while larger ones remain on top. This process is essential in various fields, including construction, pharmaceuticals, and food processing, to ensure material quality and consistency. The device typically consists of a motor that vibrates the sieves, enhancing the separation process. Sieve shakers can be manual or automated, and they are often used in conjunction with other equipment, such as sieves and particle size analyzers, to achieve precise results.