calcining gypsum mill studiareacrema it Gypsum mill for Algeria Cement Lime Gypsum The MPS mill is designed for the grinding and calcining of 14 t h of natural gypsum at a residual crystal water content of about 5 and a product fineness of 0 2 residue on 0 200 mm The scope of supply includes the complete mill with classifier and the feed rotary lock as well as the expansion joints