Temu all of powerful Neodymium disc magnets (Quick Links)

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1 0.08in×0.04in 2mm×1mm Order Now
2 0.12in×0.04in 3mm×1mm Order Now
3 0.12in×0.08in 3mm×2mm Order Now
4 0.12in×0.15in 3mm×4mm Order Now
5 0.12in×0.2in 3mm×5mm Order Now
6 0.16in×0.04in 4mm×1mm Order Now
7 0.16in×0.06in 4mm×1.5mm Order Now
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10 0.16in×0.16in 4mm×4mm Order Now
11 0.16in×0.32in 4mm×8mm Order Now
12 0.16in×0.39in 4mm×10mm Order Now
13 0.19in×0.04in 5mm×1mm Order Now
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16 0.19in×0.12in 5mm×3mm Order Now
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18 0.19in×0.32in 5mm×8mm Order Now
19 0.23in×0.1in 5.8mm×2.5mm Order Now
20 0.23in×0.06in 6mm×1.6mm Order Now
21 0.236in×0.08in 6mm×2mm Order Now
22 0.236in×0.12in 6mm×3mm Order Now
23 0.236in×0.236in 6mm×6mm Order Now
24 0.236in×0.39in 6mm×10mm Order Now
25 0.28in×0.08in 7mm×2mm Order Now
26 0.28in×0.2in 7mm×5mm Order Now
27 0.31in×0.1in 7.8mm×2.5mm Order Now
28 0.32in×0.04in 8mm×1mm Order Now
29 0.32in×0.08in 8mm×2mm Order Now
30 0.32in×0.12in 8mm×3mm Order Now
31 0.32in×0.2in 8mm×5mm Order Now
32 0.32in×0.32in 8mm×8mm Order Now
33 0.32in×0.39in 8mm×10mm Order Now
34 0.36in×0.04in 9mm×1mm Order Now
35 0.36in×0.08in 9mm×2mm Order Now
36 0.39in×0.04in 10mm×1mm Order Now
37 0.39in×0.06in 10mm×1.5mm Order Now
38 0.39in×0.08in 10mm×2mm Order Now
39 0.39in×0.1in 10mm×2.5mm Order Now
40 0.39in×0.12in 10mm×3mm Order Now
41 0.39in×0.2in 10mm×5mm Order Now
42 0.39in×0.32in 10mm×8mm Order Now
43 0.39in×0.39in 10mm×10mm Order Now
44 0.39in×0.79in 10mm×20mm Order Now
45 0.47in×0.08in 12mm×2mm Order Now
46 0.47in×0.1in 12mm×2.5mm Order Now
47 0.47in×0.12in 12mm×3mm Order Now
48 0.47in×0.19in 12mm×5mm Order Now
49 0.47in×0.39in 12mm×10mm Order Now
50 0.59in×0.04in 15mm×1mm Order Now
51 0.59in×0.08in 15mm×2mm Order Now
52 0.59in×0.12in 15mm×3mm Order Now
53 0.59in×0.16in 15mm×4mm Order Now
54 0.59in×0.39in 15mm×10mm Order Now
55 0.63in×0.32in 16mm×8mm Order Now
56 0.7in×0.08in 18mm×2mm Order Now
57 0.7in×0.12in 18mm×3mm Order Now
58 0.79in×0.08in 20mm×2mm Order Now
59 0.79in×0.12in 20mm×3mm Order Now
60 0.79in×0.16in 20mm×4mm Order Now
61 0.79in×0.2in 20mm×5mm Order Now
62 0.79in×0.24in 20mm×6mm Order Now
63 0.79in×0.32in 20mm×8mm Order Now
64 0.79in×0.39in 20mm×10mm Order Now
65 0.79in×0.59in 20mm×15mm Order Now
66 0.79in×0.79in 20mm×20mm Order Now
67 0.98in×0.08in 25mm×2mm Order Now
68 0.98in×0.12in 25mm×3mm Order Now
69 0.98in×0.2in 25mm×5mm Order Now
70 0.98in×0.39in 25mm×10mm Order Now
71 1.18in×0.08in 30mm×2mm Order Now
72 1.18in×0.12in 30mm×3mm Order Now
73 1.26in×0.08in 32mm×2mm Order Now
74 1.26in×0.12in 32mm×3mm Order Now
75 1.26in×0.16in 32mm×4mm Order Now
76 1.57in×0.19in 40mm×5mm Order Now
77 1.57in×0.79in 40mm×20mm Order Now
78 1.97in×1.18in 50mm×30mm Order Now

Do NdFeB powerful magnets conduct electricity?


Conductivity is the ability of a substance to allow electrical current to pass through it. This ability mainly depends on the number and mobility of free electrons in the substance; NdFeB magnet is a metal alloy that has certain conductivity due to the characteristics of the metal itself. However, the electrical conductivity of NdFeB magnets is not outstanding compared to common conductors such as copper and aluminum. This is because although neodymium, iron, and boron are all metallic elements, they don't have many free electrons, so they are weak conductors.

In practical applications, we usually do not take advantage of this feature. On the contrary, what we pay more attention to is the magnetic properties of NdFeB magnets. This kind of strong magnetic material is mainly used to make motors, generators, hard drives, MRI scanning equipment, etc. The working principle of this equipment mainly uses electric current to generate magnetic fields, rather than using the conductivity of the magnet itself. When we design and build these devices, we use specialized conductors (such as copper and aluminum) to conduct electrical current and use the strong magnetic fields generated by neodymium iron boron magnets to convert or control the electricity.
NdFeB magnets are not very conductive, but in some cases, this property can be a problem. For example, if a magnet comes into direct contact with a conductive material, it may cause a short circuit or current leakage. Therefore, when using NdFeB magnets, we need to take some measures, such as wrapping them with insulating materials, to avoid this situation.

Do NdFeB magnets emit radiation?

In physics, radiation usually refers to energy propagating through space, such as electromagnetic waves (including X-rays, gamma rays, etc.) and particle rays (such as alpha particles, beta particles, etc.). These types of radiation are penetrating and, under certain conditions, may have effects on human health. However, the magnetic field produced by a magnet does not fall into this category of radiation. Magnetic fields themselves carry no energy and do not travel like radiation. Therefore, strictly speaking, magnets do not produce radiation that is harmful to the human body. In fact, many items in our lives, such as televisions, computers, mobile phones, etc., produce magnetic fields, but the intensity of these magnetic fields is far below the level that affects the human body.
For NdFeB magnets, due to their strong magnetism, the range and intensity of their magnetic field may exceed that of other types of magnets. When using NdFeB magnets, avoid placing the magnets close to electronic devices that may be affected by the magnetic field, such as pacemakers, televisions, computers, etc.

How long does it take for a powerful magnet to demagnetize?

A strong magnet is a special kind of magnet that has a strong magnetic field and attractive force. However, like any kind of magnet, strong magnets will gradually lose their magnetism under certain conditions, a process called demagnetization. How quickly a powerful magnet demagnetizes depends on several factors, including the magnet's material, temperature, external magnetic fields, and how the magnet is used.
1. The material of a powerful magnet plays an important role in its demagnetization speed. Generally speaking, permanent magnets have relatively stable magnetism, so the demagnetization speed is slow. However, if a strong magnet uses a soft magnetic material, such as ferrite, then it will be easier to demagnetize.
2. Temperature is also an important factor affecting the demagnetization speed of powerful magnets. When the magnet is in a high-temperature environment, heat will increase the thermal activation effect of the magnetic material, thereby destroying the orderly arrangement of the magnetic moments, causing the magnet to gradually demagnetize.
3. The external magnetic field also affects the demagnetization speed of powerful magnets. If there is a magnetic field stronger than the magnet in the surrounding environment, it will interfere with the orderly arrangement of the magnet's magnetic moments, thereby accelerating the demagnetization process.
4. The use of powerful magnets will also affect the degaussing speed. If a magnet is frequently subjected to stress such as shock, vibration or bending, its magnetism will gradually lose, eventually leading to demagnetization.

How to slow down the degaussing speed?

Keep the surface of the magnet clean and smooth to prevent dust and other particles from entering the magnet surface and causing damage.
Try to avoid excessive impact and stress on the magnet, which may cause the magnet to lose its magnetism.
Control the operating temperature of the magnet to avoid exposing the magnet to high-temperature environments, which can effectively delay the degaussing process.

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