... fineness and flexible adjustment 3.long lifetime for spare part Super Micro Powder Making Machineis an equipment which produce thinpowder and ... ,gypsum,alunite, graphite, fluorite, floatstone,ect.Working Principle of the super mico powder millMill's motor let rotary table circumgyrate by ... to have , athird class gear reducer in the main seat, turbo-classifier is fixed onupper case of antrum mill.