what is oversized product and undersized product

What is oversize and undersize of the vibro sieving machine

Oversize product refer to objects whose particle size is larger than the mesh size. It cannot pass through the mesh and will be retained on the screen. During the screening process, the objects on the screen will move along the rotating trajectory to the discharge port of the objects on the screen, and finally be discharged.Undersize product refers to objects whose particle size is less than or equal to the mesh size, which will pass through the mesh into the next deck.For example, a vibro sieving machine has one layer of screen with a mesh size of 500 microns. When flour is poured into the sifter, fine powder smaller than or equal to 500 microns will pass through the mesh and be extracted. This part of the flour is what is under the sieve. .