Sifter

Sifting is important unit operation to separte foreign matterns and get particles of desired sizes.

Sifter uses different sieves . Mesh sizes are 20 mesh, 30 mesh, 40 mesh and 60 mesh . Above 60 mesh sizes generally used in special cases where requires more fine materials.

Sifting with higher mesh sizes leads troubles in sifting and time taken for sifting is more.

Sifer animated video :