Grate Magnets (Hopper Magnets) provide a properly configured, high-density magnetic field to trap and hold ferrous fines, fragments, and small metal objects as it passes through the stainless steel tubing. They can be installed – or simply laid – inside hoppers, housings, and bins – and easily removed for cleaning. Grates are built for low-abrasion applications and should measure at least twice the size of your outlet opening, so as not to restrict product flow. Grate Magnets (Hopper Magnets) are available with ceramic magnets or high intensity rare earth neodymium magnets, round or square, in a variety of sizes.