This client is located in Indonesia, a manufacture of construction board and manufacture. They take sea sand, grinding to powder form, then add into plate or board, which is a kind of fire-proof material. Due to high silica content, the sea sand is very hard to grind. SBM design the mill with bigger cavity gearbox, bigger diameter bearing, bigger transmission device, and equipped with lubricate station for roller device. These upgraded configuration improved VRM grinding ability and reach client demand.