The successful integration between mine operations, primary crushing and milling has been shown to be a key factor for the success of open-pit mines. This paper presents work done in a collaborative research project between the University of British Columbia and Highland Valley Copper. The research was aimed at understanding gyratory crusher liner wear in the overall context of the crushing process. Wear measurements were taken for in-service crushers during the research period using a novel laser profile measurement device. Data from the wear measurements was correlated with crusher production information such as current draw and throughput. This work resulted in enhanced knowledge of liner wear and its link to crusher performance. (C) 2004 Elsevier Ltd. All rights reserved.