The OK™ mill - the most reliable and efficient mill for raw and .Jun 7, 2018 . The OK mill has been FL's standard cement vertical roller mill (VRM) since 1993. In 2017, FL also introduced the OK raw mill for.four vertical roller mill line,CEMENT SikaGrind® FOR VERTICAL ROLLER MILLSVertical Roller Mills (VRM) have a clearly higher energy efficiency than ball mills . 4. 5. CEMENT. SikaGrind® FOR VERTICAL ROLLER MILLS. CEMENT .. The common intergrinding of line and clinker in classical ball mills is there-.
four vertical roller mill line