A comprehensive and on-depth study was conducted on the common malfunctions of the Metso HP800 cone crusher,including mechanical,hydraulic,and electrical control system failures.Drawing upon multidisciplinary theories such as bearing science,fluid mechanics,and electronic engineering,combined with practical operational experience,a series of targeted and highly practical measures effectively were proposed.These measures effectively reduce equipment downtime,significantly improve the overall system reliability and efficiency,provide the scientific basis for equipment production stability,and help related enterprises and technical personnel achieve higher levels of equipment management and maintenance.This study holds important reference value for the practice of mine equipment management and maintenance.