Ball mill - WikipediaBall milling boasts several advantages over other systems: the cost of installation and grinding medium is low; it is suitable for both batch and continuous operation, similarly it is suitable for open as well as closed circuit grinding and is applicable for materials of all degrees of.about ball mills,Ball Mills - 911 Metallurgist. lip of alloy steel is standard; welded steel scoop can be supplied if desired. Drum-scoop feeder made of welded steel, is available. Specify size desired. When ordering, include a small sketch of your ball mill classifier layout. Right hand mill is standard.