A grinding roller sleeve is a key wear part installed on the roller of vertical roller mills and other grinding machinery. It forms the outer surface that directly contacts and compacts the material bed against the grinding table. Manufactured from highly wear-resistant alloys like high-chromium cast iron or composite materials, its primary function is to withstand extreme abrasion and constant pressure during the comminution process of raw materials, cement, or minerals. The sleeve's durability and precise profile are critical for maintaining optimal grinding efficiency, particle size distribution, and mill throughput. Regular inspection and replacement of the grinding roller sleeve are essential to ensure consistent operational performance and protect the integrity of the roller core.