Magnetic rollers, often used as conveyor head pulleys to automatically separate ferrous metals from bulk materials. Technology: They utilize strong permanent magnets, such as neodymium or ferrite, to generate a magnetic field without requiring electricity. Application: Installed at the end of conveyor belts to protect crushers and mills by removing ferrous impurities like iron scrap and tramp metal. Construction: Typically built with a robust stainless steel shell to hold the internal magnetic core. Specifications: Available in various diameters and lengths, with magnetic intensities ranging from 10,000 to over 15,000 Gauss.