Sieving machine is a construction machine used to segregate aggregates into different sized fractions through the screening process. The device usually consists of one or more sieves that vibrate or rotate, allowing for the separation of smaller particles from large ones. Sieving machines are used in mines, quarries, aggregate processing plants and construction sites where it is necessary to obtain a specific size of material, e.g. for concrete, asphalt or sub-crust production.