LSM Series Three Ring Ultra-fine Mill is a new mill set, which has absorbed the high advanced mechanical technology of Sweden and developed after more than 20 times' experiments and improvement. It is the perfect combination of China and Sweden and leads the way in the world ultra-fine mills. It is widely used in grinding non-flammable and non-explosive brittle minerals, such as calcite, limestone, talc, mica, bentonite, plaster, graphite and barite. The hardness of materials decides the service life of the wear parts, when the moth is up to 5-9 grades, its life will decrease.

The generator makes the main shaft and turntable rotate through the reducer, and the turntable make the rollers rotate through the pin. After being crushed by a crusher into smaller ones, the qualified materials are sent to the hopper by a bucket elevator, and then transported to the center of the turntable. With the centrifugal force, the materials are cast in all directions and fall onto the ring, and then pressed, rolled and grinded. After being grinded in the first grinding room, they fall onto the second one and the third one. With the centrifugal force, the coarse powder is sent to the powder classifier, and the fine powder to the powder concentrator, and then discharged from the discharge valve as the final product. The small amount of dust is discharged through the blower after being purified.