This time is more than 8 months.
Ball mill linings include metal linings, rubber linings, and magnetic linings. High manganese steel linings are the more common wet ball mill linings, with a service life of about 8 months. Rubber linings The service life of the plate is longer than that of the high manganese steel lining plate, which is about three times that of the high manganese steel lining plate. The service life of the magnetic lining plate is longer.