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neodymium magnets n55

Neodymium Disc Magnets, N55

N55 magnets are the strongest magnets available nowadays for commercial use. Neodymium rare earth magnets strength is measured on a scale of 24MGOe-55MGOe. These powerful magnets were developed quite recently. This new grade of neodymium magnets is 5-6 percent stronger in compare with the more common N52 grade.

From an application point of view, N55 has a residual flux density of 14.6 kGs to 15.2 kGs, which means it is 2-3% more powerful than N52. N55 magnets are typically used in applications with limited space but requires huge magnetic strength. In the magnetic separation, equipment makers want to bring the surface gauss of some magnetic separator models to a higher level. In such cases, N55 magnet lends itself to an ideal material.

neodymium magnets n55

For our customers seeking maximum strength in a disc-style shape, we are proud to stock N55 neodymium disc magnets. Compared to N52 neodymium magnets, N55 neodymium magnets are up to 6% stronger. N55 neodymium disc magnets are ideal for applications where space is limited, but a very high amount of magnetic force is required. They are often used in tight situations for delicate applications such as magnetic sensors, magnetic switches, and more.

N55 Grade Neodymium Magnets

Neodymium magnets, a variety of rare-earth magnet, are known for being the most powerful magnets in the world. In addition to their remarkable strength, they are also highly versatile. is excited to announce that we are now carrying N55-grade neodymium disc magnets.

Properties of Neodymium Magnets

Neodymium magnets are composed of neodymium (Nd), iron (Fe), and boron (B). Neodymium magnets are sought out for many reasons apart from their intense strength. Neodymium magnets also offer a high resistance to demagnetization and heat, with a maximum operating temperature of 180 °F and high-temperature neodymium magnets capable of operating at temperatures up to 300 °F. To resist corrosion, neodymium magnets will typically be coated with nickel, although other coating options are available.

Grades of Neodymium Magnets

Previously, N52 grade neodymium magnets were the strongest magnets available. Now, we are able to offer a magnet of even greater strength to our customers seeking the strongest strength in a disc style shape. Compared to N52 neodymium magnets, N55 neodymium magnets are up to 6% stronger.

Neodymium magnets are rated by grade–as a general rule, the higher a neodymium magnet’s grade, the greater its strength. The intense power of N55 neodymium magnets is recommended for the most challenging projects that require the greatest amount of magnetic strength. Because of what is known as a “miniaturization process,” N55 grade neodymium magnets can achieve the holding strengths typically boasted by larger magnets, but in a much smaller size.

Applications for N55 Neodymium Magnets

Typically, powerful N55 neodymium magnets will be used in applications where space is very limited, but the amount of magnetic force required is very high. As an example, an N55 grade neodymium magnet would be used in a situation where an extremely small magnet must tightly hold an object to its surface. N55 grade neodymium magnets may also be used in tight situations such as magnetic sensors, magnetic switches, and other delicate applications.

Safety Precautions

Due to the high strength of neodymium magnets and other rare magnets, users must take safety precautions when handling neodymium magnets. Do not place neodymium magnets near electronic devices, credit cards, or medical devices such as pacemakers. Do not allow fingers or hands to be in the path of two attracting magnets, as severe pinching may occur. Neodymium magnets are not toys, and must be kept out of the reach of children.

N52 and N55 rare earth magnets

To some extent, there is a trade-off between remanence(Br) and coercivity(Hc). A higher remanence could mean a lower Hc value. In the case of N55 neodymium magnets, the magnet is theoretically more susceptible to demagnetization. 

In order to increase the Br and maintain Hc, there is a difference between the production of N55 and others. Instead of using praseodymium-neodymium(PrNd) alloy, we use pure neodymium (Nd) metal to make NdFeB alloy because neodymium contributes more to the increase of Br than praseodymium. That means the cost difference between N52 and N55 is much bigger. That’s why the N52 neodymium magnet still dominates the market despite the fact that N55 has been commercially available for a long time. 

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