electron1539 30/06/2009 10:22:18 main aim of sieve 63,100,200 for raw material Dear experts kindly i would like to know exactly the main aim of making sieve 63,100,200 for raw materials best regards Michael Clark 30/06/2009 12:59:44 It is to monitor and control the burnability or combinability of the kiln feed. electron1539 01/07/2009 07:23:39 thx sir for ur reply but kindly i want to know what exactly every sieve residue represent Michael Clark 01/07/2009 09:44:59 They don't represent anything. They are just commonly available sieve sizes. From these you can estimate the residue at any grain size using the Rosin Rammler distribution.