OK Raw and Cement Mill FLSmidthThe OK raw and cement mills are available in all sizes 0 200 400 600 800 1000 1200 1400 1600 1800 OK 77 6 OK 43 4 OK 48 4 OK 40 4 OK 52 4 OK 71 6 OK 81 6 OK 66 6 OK 61 6 OK 56 4 0 200 100 300 400 500 600 700 800 900 O O OK 37 3 OK 28 3 ra mill emet mill a sla rii Application advantages Proven commercially the OK mill is the premier roller mill for finish grinding of Portland cement