1) 12" to 25" Pulverisers are used for Papad and Spices. Big machines are used for chemicals, minerals Bauxite, Gypsem, Calcite, Dolamite etc. Coal, Soap Stone, Pieces of Leather. 2) Pulverisers upto 100 to 300 Mesh. 3) Eight beaters are used in 12 " to 25 " machines and 121620 Beaters with big machines.