Neodymium Iron Boron magnet is the most powerful rare earth magnets. They are less brittle than SmCo magnet and are used in a wide variety of applications. These magnets are extremely strong for their small size, metallic in appearance and found in simple shapes such as rings, blocks and discs. It is made of Neodymium, Iron and Boron, with excellent magnetic property and abundant raw materials. They can be used as an ideal magnet in mini-motor, permanent magnetic resonance and sound device magnetic suspension system.

Neodymium Iron Boron magnets are a type of rare earth alloy that typically has two atoms of Neodymium (Nd), 14 atoms of Iron (Fe), and one atom of Boron (B) as the primary elements. It has chemical composition of Nd2Fe14B. There are some other elements that are also used for purposes of increasing the coercivity, gaining lower oxidation characteristics and other such desirable characteristics. These elements are used to 'dope' the alloy, and are generally found in small quantities. These magnets are mechanically strong, gives the best fields possible in permanent. The temperature coefficient of Br is higher than Samarium Cobalt, so the material is more sensitive to temperature changes, ranging from 0.10%/°C - 0.13%/°C.

A neodymium magnet is a powerful magnet made of a combination of neodymium, iron, and boron. They are very strong in comparison to their mass. It is mechanically fragile and the most powerful grades lose their magnetism at temperatures above 176 degrees fahrenheit or 80 degrees Celsius. High-temperature grades will operate at up to 200 and even 230 °C but their strength is only marginally greater than that of samarium-cobalt. They have replaced marginally weaker and significantly more heat-resistant samarium-cobalt magnets in most applications, due mainly to their lower cost. It exhibits magnetic braking when moved near a non-magnetic metal due to induced eddy currents. They are used for stabilization and angular head motors in computer hard drives.

Overhead-suspended magnets are used to reduce potential damage to processing equipment while providing effective metal recovery and removal. It is available in various magnet strength and sizes.

Permanent Magnets are devices that retain their magnetic field indefinitely. There are two main classes of permanent magnets which include small particle magnets and anisotrophy based coarse grained magnets. It produces a high magnetic field with a low mass, and should be stable against the influences which would demagnetize it. The desirable properties of such magnets are typically stated in terms of the remanence and coercivity of the magnet materials. These strong magnets have been made from alloys of aluminum, nickel and cobalt with iron.

Plate magnets are incorporated in chutes and ducts to remove both tramp iron and iron of abrasion. The plate consists of a series of alternating poles, uniform across the chute width and alternating along the chute length. As the material passes over the magnet face, tramp iron is trapped on the magnet face while the remaining non-magnetic material proceeds down the chute. It must be cleaned and inspected daily since they are not effective if the accumulated tramp iron is allowed to remain on the face. The magnetized plates are usually of permanent magnet type, either ferrite or rare earth. The effective depth of the magnetic field can be as high as 200 mm, depending on the type of the magnetic material and on the shape of particles to be removed.