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Power magnets - What is a power magnet & which types are there?

What is a power magnet?

The exceptionally strong magnets are properly called neodymium magnets, but they're often referred to by various names, including supermagnets, power magnets, and neodymium magnets. They are not toys and should be used and handled with care due to their formidable pulling power.

The smallest magnets can be used for hobbies, such as creating your own refrigerator magnets or needing a magnetic lock solution for toys or similar applications.

Larger magnets are typically used by magnet enthusiasts eager to test the extreme pulling force (watch your fingers!) and by businesses for machinery and equipment.

Under each product listing, you can view the load capacity for each magnet. And it's no exaggeration. Some of the smallest sizes can easily hold scissors, the mid-sized magnets can manage a heavy hammer, and the largest magnets can suspend a bicycle in the air, provided that the material is magnetic. We offer many different shapes such as cylinders, disc, cubes and much more. The load capacity assumes direct contact with a magnetic surface - meaning significantly less capacity for, for example, magnetic glass boards, where a glass panel lies between the actual magnet plate and the magnet.

Below you will find important information about the dangers of using these magnets. You'll find a link to the complete list under each product, and a paper version is included when ordering power magnets.

Strength and loss of strength

Neodymium magnets are approximately 9 times stronger than ferrite magnets when comparing two magnets of the same size.

In theory, magnets never lose their strength. However, after about 100 years, a slight degradation in magnetism can be measured. But other factors besides time can demagnetize a magnet, like intense heat or repeated impact. High heat permanently destroys a magnet. But damage from impact (where the magnet's casing remains intact) can often be rectified.

Take, for example, a magnetic knife strip: over the years, magnetism diminishes due to the constant impact from the knives. However, running a powerful power magnet over the knife strip can rejuvenate its strength.

A neodymium magnet will not be significantly affected if it chips slightly. However, due to their powerful magnetic field, they can easily crack under careless use. It's almost inevitable to end up with a broken magnet if it slams together with another magnet at high speed.

Working temperature and storage

Up to 80 °C (unless otherwise stated on the product sheet).

At temperatures above 80 degrees, neodymium permanently loses its magnetism. However, there is no lower limit for temperature impact on neodymium, so no negative temperatures are specified.

We recommend that power magnets be stored at room temperature. And if they're not in use, it's wise to keep them in a package where the magnetic field is shielded, and the magnets are not exposed to shocks and temperature influences to a great extent. In our workshop, we have a felt-lined steel plate where we place test magnets when not in use. This way, they are easy to remove from the plate and can be neatly stored in a drawer.

Risk of injury

The magnets have a very powerful attraction. Careless use can cause bruising or finger injuries. Watch

Risk of swallowing

Magnets are not toys and should be kept out of reach of children. If swallowed, magnets can become lodged in airways or other parts of the body, causing serious complications.

Risk of electric shock

Magnets are made of metal and can conduct electricity. They must not come into contact with electricity, including power outlets, as they can cause electric shock.


Magnets can affect pacemakers and implanted heart defibrillators. A pacemaker, in the worst case, may switch to test mode, causing nausea and illness. A defibrillator may stop working. If you use these devices, maintain a sufficient distance from magnets. Also, warn others who use these devices to keep a safe distance from magnets.


Use magnets only with the load specified under each product description on www.magnetpartner.com. Overloading magnets can cause them to detach from the magnetic surface they are attached to. Falling objects can lead to severe injuries.

Note! The load specified under each product sheet on www.magnetpartner.com only when the magnets are used correctly. Do not use magnets in places where people might get hurt in the event of a magnet's failure or similar situations.

Risk of Splinters

Colliding magnets can crack and cause splinters that can be flung several meters, potentially causing eye and bodily harm. Avoid magnet collisions, wear safety goggles when handling larger magnets, and ensure that bystanders are also protected or at a safe distance.

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