Patterson Industries Ball Mill. Approximate capacity: 369 gallons. Inside dimensions: 48 in diameter x 60 in. L. Arlcite (alumina media) charge at 50% ratio: 3038 lbs. Gallons of displacement at 50% volume: 122 balls. Constant grinding action is provided for in the Patterson Industries ball mill using porcelain balls as the grinding media with the surface area of each ball multiplying its effect. This mill features a high alumina brick lining with applications to include: chemicals, paints, coatings, and ceRam Industriesics industries where the reliability and uniformity of output tolerances must maintain consistency. This unit was in prior service with Crane Plumbing in their porcelain process line. Overall dimensions: 8 ft. 3 in. L x 6 ft. 3 in. W x 6 ft. 3 in. H.(ACN825).