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MW 45x20 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010071

GTIN/EAN: 5906301810704

5.00
Load capacity 60.94 kg / 597.79 N Magnetic Induction 411.81 mT / 4118 Gs
Diameter Ø
45 mm [±0,1 mm]
Height
20 mm [±0,1 mm]
Weight
238.56 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

technical parameters »

68.66 zł net / pcs

84.45 zł with VAT (23% VAT) / pcs

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Frequently asked questions

What is the maximum working temperature of a disc magnet?
Standard N-series grades work up to 80 °C. Grades N50, N52 and N54 have a lower limit of 60 °C, because coercivity falls as BHmax rises. Higher temperatures require the H (120 °C), SH (150 °C), UH (180 °C), EH (200 °C) or AH (230 °C) series. Within the working range the magnet loses about 0.11% of its induction per degree, and that loss is reversible.
What is the difference between N38, N42 and N52?
The number after N is the energy product BHmax. Moving from N38 to N52 raises it by several tens of percent, but the real holding force increases by roughly 20%, because force also depends on geometry and on the magnetic circuit. N52 costs about twice as much as N42, so for most mounting work N38–N42 is the best price-to-force ratio.
What is the dimensional tolerance?
±0.1 mm as standard, ±0.05 mm to order. The tolerance is stated next to the dimensions on every product page.

Guides from the knowledge base

Engineering report for this magnet

Full PDF analysis: pull and shear force, effect of distance, temperature and plate thickness, safety distances and the demagnetization curve.

PDF report Calculator
Want to talk magnets?

Call us now +48 888 99 98 98 alternatively let us know using contact form the contact section.
Specifications and structure of a neodymium magnet can be estimated using our power calculator.

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Technical details - MW 45x20 / N38 - cylindrical magnet

Specification / characteristics - MW 45x20 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010071
GTIN/EAN 5906301810704
Production/Distribution Dhit sp. z o.o.
ul. Zielona 14 05-850 Ożarów Mazowiecki PL
Country of origin Poland / China / Germany
Customs code 85059029
Diameter Ø 45 mm [±0,1 mm]
Height 20 mm [±0,1 mm]
Weight 238.56 g
Magnetization Direction ↑ axial
Load capacity ~ ? 60.94 kg / 597.79 N
Magnetic Induction ~ ? 411.81 mT / 4118 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 45x20 / N38 - cylindrical magnet
properties values units
remenance Br [min. - max.] ? 12.2-12.6 kGs
remenance Br [min. - max.] ? 1220-1260 mT
coercivity bHc ? 10.8-11.5 kOe
coercivity bHc ? 860-915 kA/m
actual internal force iHc ≥ 12 kOe
actual internal force iHc ≥ 955 kA/m
energy density [min. - max.] ? 36-38 BH max MGOe
energy density [min. - max.] ? 287-303 BH max KJ/m
max. temperature ? ≤ 80 °C

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C
properties values units
Vickers hardness ≥550 Hv
Density ≥7.4 g/cm3
Curie Temperature TC 310 °C
Curie Temperature TF 590 °F
Specific resistance 150 μΩ⋅cm
Bending strength 250 MPa
Compressive strength 1000~1100 MPa
Thermal expansion parallel (∥) to orientation (M) (3-4) x 10-6 °C-1
Thermal expansion perpendicular (⊥) to orientation (M) -(1-3) x 10-6 °C-1
Young's modulus 1.7 x 104 kg/mm²

Technical modeling of the magnet - technical parameters

The following information represent the result of a physical analysis. Results are based on algorithms for the class Nd2Fe14B. Real-world conditions may differ. Treat these calculations as a supplementary guide for designers.

Table 1: Static force (force vs distance) - interaction chart
MW 45x20 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 4117 Gs
411.7 mT
 60.94 kg / 134.35 LBS
60940.0 g / 597.8 N
 dangerous!
1 mm 3955 Gs
395.5 mT
 56.23 kg / 123.96 LBS
56228.7 g / 551.6 N
 dangerous!
2 mm 3786 Gs
378.6 mT
 51.51 kg / 113.57 LBS
51512.3 g / 505.3 N
 dangerous!
3 mm 3613 Gs
361.3 mT
 46.91 kg / 103.42 LBS
46911.0 g / 460.2 N
 dangerous!
5 mm 3263 Gs
326.3 mT
 38.28 kg / 84.40 LBS
38282.6 g / 375.6 N
 dangerous!
10 mm 2442 Gs
244.2 mT
 21.43 kg / 47.26 LBS
21434.6 g / 210.3 N
 dangerous!
15 mm 1776 Gs
177.6 mT
 11.34 kg / 25.00 LBS
11340.0 g / 111.2 N
 dangerous!
20 mm 1285 Gs
128.5 mT
 5.93 kg / 13.08 LBS
5932.8 g / 58.2 N
 medium risk
30 mm 694 Gs
69.4 mT
 1.73 kg / 3.82 LBS
1730.8 g / 17.0 N
 low risk
50 mm 249 Gs
24.9 mT
 0.22 kg / 0.49 LBS
222.3 g / 2.2 N
 low risk
Grip strength drops significantly with every subsequent millimeter of gap. Note that even a very thin break (e.g., contamination, paint, veneer) significantly diminishes the holding power. Magnets work optimally in perfect adhesion; air break kills the force. Analyze how rapidly the load capacity drop, when the magnet does not adhere tightly to the metal substrate. When designing the arrangement, discard additional spacers.

Table 2: Sliding load (wall)
MW 45x20 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 12.19 kg / 26.87 LBS
12188.0 g / 119.6 N
1 mm Stal (~0.2) 11.25 kg / 24.79 LBS
11246.0 g / 110.3 N
2 mm Stal (~0.2) 10.30 kg / 22.71 LBS
10302.0 g / 101.1 N
3 mm Stal (~0.2) 9.38 kg / 20.68 LBS
9382.0 g / 92.0 N
5 mm Stal (~0.2) 7.66 kg / 16.88 LBS
7656.0 g / 75.1 N
10 mm Stal (~0.2) 4.29 kg / 9.45 LBS
4286.0 g / 42.0 N
15 mm Stal (~0.2) 2.27 kg / 5.00 LBS
2268.0 g / 22.2 N
20 mm Stal (~0.2) 1.19 kg / 2.61 LBS
1186.0 g / 11.6 N
30 mm Stal (~0.2) 0.35 kg / 0.76 LBS
346.0 g / 3.4 N
50 mm Stal (~0.2) 0.04 kg / 0.10 LBS
44.0 g / 0.4 N
This section presents the approximate holding capacity needed to start the sliding of the magnet downwards against a upright steel plate (considering standard friction). The holding force depends on the air gap between the magnet and the metal.

Table 3: Vertical assembly (sliding) - vertical pull
MW 45x20 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
18.28 kg / 40.30 LBS
18282.0 g / 179.3 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
12.19 kg / 26.87 LBS
12188.0 g / 119.6 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
6.09 kg / 13.43 LBS
6094.0 g / 59.8 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
30.47 kg / 67.17 LBS
30470.0 g / 298.9 N
When hanging a element on a upright wall (e.g., a car body), it you can count on only approx. 1/5 of nominal attraction strength. Gravity as well as a weak degree of grip cause that products slide down easier than they detach. Want to create a wall mount? Consider that the sliding force is noticeably lower than the perpendicular breakaway force. On a smooth steel, the element will give way down under a significantly smaller cargo. Utilizing a rubberized layer can drastically increase the grip.

Table 4: Material efficiency (substrate influence) - sheet metal selection
MW 45x20 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
3%
 2.03 kg / 4.48 LBS
2031.3 g / 19.9 N
1 mm
8%
 5.08 kg / 11.20 LBS
5078.3 g / 49.8 N
2 mm
17%
 10.16 kg / 22.39 LBS
10156.7 g / 99.6 N
3 mm
25%
 15.24 kg / 33.59 LBS
15235.0 g / 149.5 N
5 mm
42%
 25.39 kg / 55.98 LBS
25391.7 g / 249.1 N
10 mm
83%
 50.78 kg / 111.96 LBS
50783.3 g / 498.2 N
11 mm
92%
 55.86 kg / 123.15 LBS
55861.7 g / 548.0 N
12 mm
100%
 60.94 kg / 134.35 LBS
60940.0 g / 597.8 N
A thin sheet is not enough to take in the full magnetic flux, which weakens actual performance of the holder. Should you mount a strong magnet to a weak sheet, the field will pass right through and the holding will be smaller. To squeeze 100% of this neodymium's potential, you need a suitably thick element of steel. The saturation phenomenon means that on thin elements (e.g., thin profiles), the magnet holds weaker. We recommend selecting the steel cross-section based on the following data.

Table 5: Working in heat (material behavior) - thermal limit
MW 45x20 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 60.94 kg / 134.35 LBS
60940.0 g / 597.8 N
 OK
40 °C -2.2% 59.60 kg / 131.39 LBS
59599.3 g / 584.7 N
 OK
60 °C -4.4% 58.26 kg / 128.44 LBS
58258.6 g / 571.5 N
80 °C -6.6% 56.92 kg / 125.48 LBS
56918.0 g / 558.4 N
100 °C -28.8% 43.39 kg / 95.66 LBS
43389.3 g / 425.6 N
Ordinary NdFeB products irreversibly lose strength past the thermal threshold. Avoid high temperatures – excessive heat can permanently demagnetize this magnet. With increasing heat, the magnet's power momentarily drops. Avoid using this magnet in hot environments exceeding its operating temperature limit. Too high temperature will result in irreversible degradation of magnetism.
*Important note: Thermal stability is determined by both grade, but also on the magnet's shape. Flat magnets (low permeance coefficient) risk losing magnetic properties sooner than long magnets. The danger warning in the table signals permanent field degradation for this specific geometry.

Table 6: Two magnets (attraction) - field range
MW 45x20 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 166.23 kg / 366.47 LBS
5 401 Gs
24.93 kg / 54.97 LBS
24934 g / 244.6 N
 N/A
1 mm 159.87 kg / 352.45 LBS
8 076 Gs
23.98 kg / 52.87 LBS
23980 g / 235.2 N
 143.88 kg / 317.20 LBS
~0 Gs
2 mm 153.38 kg / 338.14 LBS
7 910 Gs
23.01 kg / 50.72 LBS
23007 g / 225.7 N
 138.04 kg / 304.33 LBS
~0 Gs
3 mm 146.92 kg / 323.90 LBS
7 742 Gs
22.04 kg / 48.58 LBS
22038 g / 216.2 N
 132.23 kg / 291.51 LBS
~0 Gs
5 mm 134.19 kg / 295.83 LBS
7 399 Gs
20.13 kg / 44.37 LBS
20128 g / 197.5 N
 120.77 kg / 266.25 LBS
~0 Gs
10 mm 104.43 kg / 230.22 LBS
6 527 Gs
15.66 kg / 34.53 LBS
15664 g / 153.7 N
 93.98 kg / 207.20 LBS
~0 Gs
20 mm 58.47 kg / 128.90 LBS
4 884 Gs
8.77 kg / 19.34 LBS
8770 g / 86.0 N
 52.62 kg / 116.01 LBS
~0 Gs
50 mm 8.61 kg / 18.98 LBS
1 874 Gs
1.29 kg / 2.85 LBS
1291 g / 12.7 N
 7.75 kg / 17.08 LBS
~0 Gs
60 mm 4.72 kg / 10.41 LBS
1 388 Gs
0.71 kg / 1.56 LBS
708 g / 6.9 N
 4.25 kg / 9.37 LBS
~0 Gs
70 mm 2.68 kg / 5.91 LBS
1 046 Gs
0.40 kg / 0.89 LBS
402 g / 3.9 N
 2.41 kg / 5.32 LBS
~0 Gs
80 mm 1.58 kg / 3.48 LBS
803 Gs
0.24 kg / 0.52 LBS
237 g / 2.3 N
 1.42 kg / 3.14 LBS
~0 Gs
90 mm 0.96 kg / 2.12 LBS
627 Gs
0.14 kg / 0.32 LBS
145 g / 1.4 N
 0.87 kg / 1.91 LBS
~0 Gs
100 mm 0.61 kg / 1.34 LBS
497 Gs
0.09 kg / 0.20 LBS
91 g / 0.9 N
 0.55 kg / 1.20 LBS
~0 Gs
Two magnets attract each other from a wider radius than a magnet and steel combination. The setup of magnet-to-magnet produces a massive flux and a wider radius of action. Want to build a solid fastener? Apply two magnets instead of one magnet and a striker plate. Remember that when attracting two neodymiums, the collision energy is extreme. The levitation is marginally weaker than the attraction, but still large.
*Flux density for N-N configuration is approximately ~0 Gs at the geometric center of the gap (due to field cancellation).
Important: Results refer to sliding force of two identical magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Safety (HSE) (electronics) - warnings
MW 45x20 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 22.5 cm
Hearing aid 10 Gs (1.0 mT) 17.5 cm
Timepiece 20 Gs (2.0 mT) 14.0 cm
Mobile device 40 Gs (4.0 mT) 10.5 cm
Car key 50 Gs (5.0 mT) 10.0 cm
Payment card 400 Gs (40.0 mT) 4.5 cm
HDD hard drive 600 Gs (60.0 mT) 3.5 cm
Powerful magnet radiation poses a large risk to IT equipment and pacemakers. These neodymiums generate a flux that prevents correct functioning of digital equipment. Remember: the unseen radiation acts through matter and glass. Exceptional care must be taken by people with cochlear implants and insulin pumps. The risk also applies to: automatic timepieces, car keys, membranes, and screens. Do not place the magnet near cards, hard drives, or sensitive navigation tools.

Table 8: Dynamics (kinetic energy) - warning
MW 45x20 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 20.47 km/h
(5.69 m/s)
 3.86 J
30 mm 24.17 km/h
(6.71 m/s)
 5.38 J
50 mm 24.48 km/h
(6.80 m/s)
 5.51 J
100 mm 24.54 km/h
(6.82 m/s)
 5.54 J
Neodymium magnets are prone to chipping – a violent impact against metal can result in shattering. Pay attention to connection velocity – a magnet released freely becomes dangerous. Impact energy can destroy the magnet or painful pinches to skin. Always hold the magnet during bringing near metal so it doesn't slam with momentum against the metal. A contact at a velocity of dozens of km/h ends with a crack of the neodymium. Wear safety glasses when handling with powerful specimens.

Table 9: Coating parameters (durability)
MW 45x20 / N38

Technical parameter Value / Description
Coating type [NiCuNi] Nickel
Layer structure Nickel - Copper - Nickel
Layer thickness 10-20 µm
Salt spray test (SST) ? 24 h
Recommended environment Indoors only (dry)
The following table defines the conditions under which this product can be safely used. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Electrical data (Pc)
MW 45x20 / N38

Parameter Value SI Unit / Description
Magnetic Flux 66 952 Mx 669.5 µWb
Pc Coefficient 0.54 Low (Flat)
Total magnetic flux emitted by the pole surface. Essential parameter when building generators as well as sensors. The Pc coefficient determines the magnet's operating point.

Table 11: Underwater work (magnet fishing)
MW 45x20 / N38

Environment Effective steel pull Effect
Air (land) 60.94 kg Standard
Water (riverbed) 69.78 kg
(+8.84 kg buoyancy gain)
+14.5%
Warning: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!
The magnetic field penetrates through water without any losses. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Shear force

*Warning: On a vertical surface, the magnet holds only ~20% of its max power.

2. Plate thickness effect

*Thin steel (e.g. 0.5mm PC case) severely limits the holding force.

3. Thermal stability

*For N38 grade, the critical limit is 80°C.

4. Demagnetization curve and operating point (B-H)

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.54

This simulation demonstrates the magnetic stability of the selected magnet under specific geometric conditions. The solid red line represents the demagnetization curve (material potential), while the dashed blue line is the load line based on the magnet's geometry. The Pc (Permeance Coefficient), also known as the load line slope, is a dimensionless value that describes the relationship between the magnet's shape and its magnetic stability. The intersection of these two lines (the black dot) is the operating point — it determines the actual magnetic flux density generated by the magnet in this specific configuration. A higher Pc value means the magnet is more 'slender' (tall relative to its area), resulting in a higher operating point and better resistance to irreversible demagnetization caused by external fields or temperature. A value of 0.42 is relatively low (typical for flat magnets), meaning the operating point is closer to the 'knee' of the curve — caution is advised when operating at temperatures near the maximum limit to avoid strength loss.

Technical and environmental data

Chemical composition

iron (Fe) 64% – 68%
neodymium (Nd) 29% – 32%
boron (B) 1.1% – 1.2%
dysprosium (Dy) 0.5% – 2.0%
coating (Ni-Cu-Ni) < 0.05%

Ecology and recycling (GPSR)

recyclability (EoL) 100%
recycled raw materials ~10% (pre-cons)
carbon footprint low / zredukowany
waste code (EWC) 16 02 16
Safety card (GPSR)
responsible entity
Dhit sp. z o.o.
ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki
tel: +48 22 499 98 98 | e-mail: bok@dhit.pl
batch number/type
id: 010071-2026
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The presented product is a very strong rod magnet, made from durable NdFeB material, which, with dimensions of Ø45x20 mm, guarantees the highest energy density. This specific item features a tolerance of ±0.1mm and professional build quality, making it a perfect solution for the most demanding engineers and designers. As a cylindrical magnet with impressive force (approx. 60.94 kg), this product is in stock from our European logistics center, ensuring quick order fulfillment. Moreover, its Ni-Cu-Ni coating shields it against corrosion in standard operating conditions, guaranteeing an aesthetic appearance and durability for years.
It successfully proves itself in modeling, advanced automation, and broadly understood industry, serving as a fastening or actuating element. Thanks to the pull force of 597.79 N with a weight of only 238.56 g, this rod is indispensable in electronics and wherever every gram matters.
Due to the delicate structure of the ceramic sinter, you must not use force-fitting (so-called press-fit), as this risks chipping the coating of this professional component. To ensure long-term durability in industry, specialized industrial adhesives are used, which are safe for nickel and fill the gap, guaranteeing high repeatability of the connection.
Grade N38 is the most popular standard for professional neodymium magnets, offering a great economic balance and operational stability. If you need the strongest magnets in the same volume (Ø45x20), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our warehouse.
This model is characterized by dimensions Ø45x20 mm, which, at a weight of 238.56 g, makes it an element with impressive magnetic energy density. The value of 597.79 N means that the magnet is capable of holding a weight many times exceeding its own mass of 238.56 g. The product has a [NiCuNi] coating, which secures it against oxidation, giving it an aesthetic, silvery shine.
Standardly, the magnetic axis runs through the center of the cylinder, causing the greatest attraction force to occur on the bases with a diameter of 45 mm. Thanks to this, the magnet can be easily glued into a hole and achieve a strong field on the front surface. On request, we can also produce versions magnetized through the diameter if your project requires it.

Advantages as well as disadvantages of neodymium magnets.

Strengths

Besides their high retention, neodymium magnets are valued for these benefits:
  • They have constant strength, and over around ten years their performance decreases symbolically – ~1% (in testing),
  • They possess excellent resistance to magnetic field loss when exposed to external magnetic sources,
  • In other words, due to the shiny layer of silver, the element gains visual value,
  • The surface of neodymium magnets generates a maximum magnetic field – this is a distinguishing feature,
  • Thanks to resistance to high temperature, they can operate (depending on the shape) even at temperatures up to 230°C and higher...
  • Possibility of precise creating and adjusting to complex applications,
  • Wide application in advanced technology sectors – they find application in mass storage devices, motor assemblies, advanced medical instruments, also other advanced devices.
  • Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in compact dimensions, which enables their usage in small systems

Cons

Disadvantages of neodymium magnets:
  • To avoid cracks under impact, we recommend using special steel holders. Such a solution protects the magnet and simultaneously increases its durability.
  • When exposed to high temperature, neodymium magnets experience a drop in power. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
  • When exposed to humidity, magnets start to rust. To use them in conditions outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which prevent oxidation and corrosion.
  • We suggest a housing - magnetic mechanism, due to difficulties in realizing nuts inside the magnet and complex forms.
  • Possible danger resulting from small fragments of magnets can be dangerous, if swallowed, which is particularly important in the context of child health protection. It is also worth noting that small components of these products can complicate diagnosis medical when they are in the body.
  • Due to expensive raw materials, their price exceeds standard values,

Pull force analysis

Highest magnetic holding force – what contributes to it?

The lifting capacity listed is a result of laboratory testing conducted under specific, ideal conditions:
  • with the contact of a yoke made of special test steel, ensuring maximum field concentration
  • possessing a thickness of at least 10 mm to ensure full flux closure
  • with a plane free of scratches
  • with direct contact (without paint)
  • for force applied at a right angle (pull-off, not shear)
  • at temperature room level

Practical lifting capacity: influencing factors

In real-world applications, the actual lifting capacity is determined by several key aspects, presented from most significant:
  • Gap between magnet and steel – every millimeter of distance (caused e.g. by veneer or unevenness) drastically reduces the pulling force, often by half at just 0.5 mm.
  • Force direction – catalog parameter refers to pulling vertically. When attempting to slide, the magnet exhibits significantly lower power (typically approx. 20-30% of nominal force).
  • Wall thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field passes through the material instead of converting into lifting capacity.
  • Steel grade – ideal substrate is high-permeability steel. Stainless steels may attract less.
  • Surface quality – the smoother and more polished the plate, the larger the contact zone and stronger the hold. Unevenness creates an air distance.
  • Thermal factor – high temperature reduces magnetic field. Exceeding the limit temperature can permanently demagnetize the magnet.

Lifting capacity testing was carried out on plates with a smooth surface of suitable thickness, under a perpendicular pulling force, whereas under attempts to slide the magnet the load capacity is reduced by as much as 75%. In addition, even a minimal clearance between the magnet’s surface and the plate lowers the lifting capacity.

Safe handling of neodymium magnets
Protective goggles

Watch out for shards. Magnets can fracture upon uncontrolled impact, ejecting sharp fragments into the air. We recommend safety glasses.

Power loss in heat

Monitor thermal conditions. Exposing the magnet to high heat will ruin its properties and pulling force.

Pacemakers

Patients with a ICD have to maintain an safe separation from magnets. The magnetism can stop the functioning of the life-saving device.

Crushing force

Mind your fingers. Two large magnets will snap together immediately with a force of several hundred kilograms, destroying everything in their path. Exercise extreme caution!

GPS and phone interference

A strong magnetic field interferes with the operation of magnetometers in smartphones and navigation systems. Keep magnets near a device to prevent breaking the sensors.

Dust is flammable

Fire warning: Rare earth powder is highly flammable. Avoid machining magnets in home conditions as this risks ignition.

Nickel coating and allergies

Medical facts indicate that the nickel plating (standard magnet coating) is a potent allergen. If you have an allergy, prevent direct skin contact and choose versions in plastic housing.

Immense force

Be careful. Rare earth magnets attract from a distance and connect with massive power, often quicker than you can move away.

This is not a toy

Neodymium magnets are not suitable for play. Swallowing a few magnets may result in them connecting inside the digestive tract, which poses a direct threat to life and requires urgent medical intervention.

Threat to electronics

Device Safety: Strong magnets can ruin payment cards and sensitive devices (heart implants, hearing aids, mechanical watches).

Security! Want to know more? Check our post: Are neodymium magnets dangerous?