The high-intensity magnetic roller is the core component of high-gradient magnetic separation systems. It is composed of high-performance rare-earth permanent magnets and magnetic conductive plates, forming an intense magnetic field through optimized magnetic circuit design. Installed in magnetic separators and ferrous removal equipment, it enables precise separation of strong and weak magnetic contaminants from dry powders and granular materials, and is widely used in mining, metallurgy, lithium battery, and plastic industries.