The use of large-face angle shell lifter-liners in combination with wider lifter spacing has grown in recent years, especially in large semiautogenous grinding mills. One claimed benefit is reduced ball on liner impact, leading to increased liner lives and less ball breakage.
Another benefit is reduced packing and improved ball-on-charge impact, leading to improved mill performance. This review covers available published data on several mill sites and aims to quantify the observed benefits.
