Used Patterson Pebble Mill, Aumina brick lined. 5' x 6' long chamber. On stand with drive. Equipped with babbit bearings. 20 HP motor and gear reduced drive, with brake. Bull gear and pinion. Standard door opening, with door.Door is polyurethane and has a drain with plug. Gearbox output RPM rated for 155. (11.4:1 Gear ratio). Pinion gear is 19 teeth, Bull gear is 155 teeth. one(1) used Patterson Pebble Mill. Serial Number 742248,