On selection of size reduction equipments, the grinding systems is to be selected depending upon application material, its physical properties, capacity, fineness requirement etc.Grinding system consists of :rnfeeders/feed conveyors for feeding to mill, rnsize reduction equipment, rncollection system (batch collection system & continuous collection system), rnconveying system (pneumatic conveying system / gravity collection system)rndust collector (open type dust collector / pulse jet dust collector)rnrotary air lock valve