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MW 12x50 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010020

GTIN/EAN: 5906301810193

5.00
Load capacity 2.62 kg / 25.73 N Magnetic Induction 614.94 mT / 6149 Gs
Diameter Ø
12 mm [±0,1 mm]
Height
50 mm [±0,1 mm]
Weight
42.41 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

technical details »

23.00 zł net / 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 parameters - MW 12x50 / N38 - cylindrical magnet

Specification / characteristics - MW 12x50 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010020
GTIN/EAN 5906301810193
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 12 mm [±0,1 mm]
Height 50 mm [±0,1 mm]
Weight 42.41 g
Magnetization Direction ↑ axial
Load capacity ~ ? 2.62 kg / 25.73 N
Magnetic Induction ~ ? 614.94 mT / 6149 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 12x50 / N38 - cylindrical magnet
properties values units
Remanence Br ? 12.2-12.6 kGs
Remanence Br ? 1220-1260 mT
Coercivity bHc ? 10.8-11.5 kOe
Coercivity bHc ? 860-915 kA/m
Intrinsic coercivity iHc ≥ 12 kOe
Intrinsic coercivity iHc ≥ 955 kA/m
Energy product BHmax ? 36-38 BH max MGOe
Energy product BHmax ? 287-303 BH max KJ/m
Maximum working 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

Physical modeling of the product - report

Presented values constitute the result of a physical analysis. Values rely on models for the class Nd2Fe14B. Actual performance may deviate from the simulation results. Please consider these data as a preliminary roadmap for designers.

Table 1: Static pull force (pull vs distance) - characteristics
MW 12x50 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 6146 Gs
614.6 mT
 2.62 kg / 5.78 pounds
2620.0 g / 25.7 N
 strong
1 mm 5138 Gs
513.8 mT
 1.83 kg / 4.04 pounds
1831.5 g / 18.0 N
 weak grip
2 mm 4199 Gs
419.9 mT
 1.22 kg / 2.70 pounds
1222.9 g / 12.0 N
 weak grip
3 mm 3388 Gs
338.8 mT
 0.80 kg / 1.76 pounds
796.3 g / 7.8 N
 weak grip
5 mm 2194 Gs
219.4 mT
 0.33 kg / 0.74 pounds
334.0 g / 3.3 N
 weak grip
10 mm 853 Gs
85.3 mT
 0.05 kg / 0.11 pounds
50.4 g / 0.5 N
 weak grip
15 mm 417 Gs
41.7 mT
 0.01 kg / 0.03 pounds
12.1 g / 0.1 N
 weak grip
20 mm 239 Gs
23.9 mT
 0.00 kg / 0.01 pounds
4.0 g / 0.0 N
 weak grip
30 mm 103 Gs
10.3 mT
 0.00 kg / 0.00 pounds
0.7 g / 0.0 N
 weak grip
50 mm 33 Gs
3.3 mT
 0.00 kg / 0.00 pounds
0.1 g / 0.0 N
 weak grip
Pulling power decreases sharply with every mm of spacing. Keep in mind that even a microscopic distance (e.g., contamination, paint, rust) significantly reduces the pull force. Neodymiums work strongest during direct contact; distance nullifies the force. Observe how flashily the parameters fall, when the magnet does not adhere flatly to the steel surface. When calculating the mounting, discard unnecessary gaps.

Table 2: Slippage capacity (wall)
MW 12x50 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.52 kg / 1.16 pounds
524.0 g / 5.1 N
1 mm Stal (~0.2) 0.37 kg / 0.81 pounds
366.0 g / 3.6 N
2 mm Stal (~0.2) 0.24 kg / 0.54 pounds
244.0 g / 2.4 N
3 mm Stal (~0.2) 0.16 kg / 0.35 pounds
160.0 g / 1.6 N
5 mm Stal (~0.2) 0.07 kg / 0.15 pounds
66.0 g / 0.6 N
10 mm Stal (~0.2) 0.01 kg / 0.02 pounds
10.0 g / 0.1 N
15 mm Stal (~0.2) 0.00 kg / 0.00 pounds
2.0 g / 0.0 N
20 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
30 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
50 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
The following data calculates the theoretical force necessary to initiate the slippage of the magnet down along a vertical metal surface (considering typical friction coefficient). This parameter is relative to the gap size between the magnet and the metal.

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MW 12x50 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.79 kg / 1.73 pounds
786.0 g / 7.7 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.52 kg / 1.16 pounds
524.0 g / 5.1 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.26 kg / 0.58 pounds
262.0 g / 2.6 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
1.31 kg / 2.89 pounds
1310.0 g / 12.9 N
When placing a holder on a vertical surface (e.g., a fridge), it will only hold barely approx. 1/5 of its maximum pull force. Gravity as well as a low friction coefficient mean that magnets move down easier than they detach. Want to create a wall mount? Consider that the shear force is noticeably lower than the perpendicular breakaway force. On a slippery surface, the holder will give way down under a significantly smaller cargo. Utilizing a rubberized layer can significantly improve the result.

Table 4: Steel thickness (substrate influence) - power losses
MW 12x50 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.26 kg / 0.58 pounds
262.0 g / 2.6 N
1 mm
25%
 0.66 kg / 1.44 pounds
655.0 g / 6.4 N
2 mm
50%
 1.31 kg / 2.89 pounds
1310.0 g / 12.9 N
3 mm
75%
 1.97 kg / 4.33 pounds
1965.0 g / 19.3 N
5 mm
100%
 2.62 kg / 5.78 pounds
2620.0 g / 25.7 N
10 mm
100%
 2.62 kg / 5.78 pounds
2620.0 g / 25.7 N
11 mm
100%
 2.62 kg / 5.78 pounds
2620.0 g / 25.7 N
12 mm
100%
 2.62 kg / 5.78 pounds
2620.0 g / 25.7 N
A too thin steel cannot absorb the entire magnetic field, which weakens actual performance of the holder. Should you install a neodymium to a weak sheet, the flux will penetrate right through and the attraction force will be weaker. To achieve full efficiency of this neodymium's potential, you require a sufficiently solid piece of steel. The saturation phenomenon causes that on thin elements (e.g., thin profiles), the magnet shows lower pull force. We advise picking the steel dimension based on the following data.

Table 5: Thermal stability (material behavior) - power drop
MW 12x50 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 2.62 kg / 5.78 pounds
2620.0 g / 25.7 N
 OK
40 °C -2.2% 2.56 kg / 5.65 pounds
2562.4 g / 25.1 N
 OK
60 °C -4.4% 2.50 kg / 5.52 pounds
2504.7 g / 24.6 N
 OK
80 °C -6.6% 2.45 kg / 5.39 pounds
2447.1 g / 24.0 N
100 °C -28.8% 1.87 kg / 4.11 pounds
1865.4 g / 18.3 N
Classic neodymiums change their properties power above the temperature limit. Avoid high temperatures – high temperature can irreversibly destroy this magnet. With every degree above norm, the magnet's capacity momentarily decreases. Refrain from using this magnet near heat sources exceeding its safe range. Exceeding the critical threshold will result in permanent loss of magnetic properties.
*Engineering note: Heat tolerance depends not only on the material grade, but also on the magnet's shape. Flat magnets (low permeance coefficient) may lose charge permanently under lower heat stress than taller cylinders. The danger warning in the table points to permanent field degradation for this particular item.

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MW 12x50 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Lateral Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 26.33 kg / 58.05 pounds
6 179 Gs
3.95 kg / 8.71 pounds
3950 g / 38.7 N
 N/A
1 mm 22.19 kg / 48.93 pounds
11 284 Gs
3.33 kg / 7.34 pounds
3329 g / 32.7 N
 19.97 kg / 44.04 pounds
~0 Gs
2 mm 18.41 kg / 40.58 pounds
10 277 Gs
2.76 kg / 6.09 pounds
2761 g / 27.1 N
 16.57 kg / 36.53 pounds
~0 Gs
3 mm 15.11 kg / 33.30 pounds
9 309 Gs
2.27 kg / 5.00 pounds
2266 g / 22.2 N
 13.60 kg / 29.97 pounds
~0 Gs
5 mm 9.94 kg / 21.91 pounds
7 551 Gs
1.49 kg / 3.29 pounds
1491 g / 14.6 N
 8.94 kg / 19.72 pounds
~0 Gs
10 mm 3.36 kg / 7.40 pounds
4 389 Gs
0.50 kg / 1.11 pounds
504 g / 4.9 N
 3.02 kg / 6.66 pounds
~0 Gs
20 mm 0.51 kg / 1.12 pounds
1 706 Gs
0.08 kg / 0.17 pounds
76 g / 0.7 N
 0.46 kg / 1.01 pounds
~0 Gs
50 mm 0.02 kg / 0.04 pounds
303 Gs
0.00 kg / 0.01 pounds
2 g / 0.0 N
 0.01 kg / 0.03 pounds
~0 Gs
60 mm 0.01 kg / 0.02 pounds
206 Gs
0.00 kg / 0.00 pounds
1 g / 0.0 N
 0.00 kg / 0.00 pounds
~0 Gs
70 mm 0.00 kg / 0.01 pounds
148 Gs
0.00 kg / 0.00 pounds
1 g / 0.0 N
 0.00 kg / 0.00 pounds
~0 Gs
80 mm 0.00 kg / 0.00 pounds
110 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
 0.00 kg / 0.00 pounds
~0 Gs
90 mm 0.00 kg / 0.00 pounds
84 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
 0.00 kg / 0.00 pounds
~0 Gs
100 mm 0.00 kg / 0.00 pounds
66 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
 0.00 kg / 0.00 pounds
~0 Gs
Two magnetic products attract each other from a significantly greater distance than a neodymium and metal setup. Such a system of two magnets produces a massive flux and a larger range of operation. Designing a powerful holder? Utilize two neodymiums instead of one magnet and a striker plate. Exercise caution that when bringing together two magnets, the impact force is massive. The levitation is slightly lower than the attraction, but still large.
*Field value in repulsion mode reaches ~0 Gs at the midpoint between the magnets (resulting from vector opposition).
Attention: Calculations demonstrate friction force of a pair of same neodymium magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Protective zones (implants) - warnings
MW 12x50 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 11.0 cm
Hearing aid 10 Gs (1.0 mT) 8.5 cm
Timepiece 20 Gs (2.0 mT) 6.5 cm
Phone / Smartphone 40 Gs (4.0 mT) 5.0 cm
Remote 50 Gs (5.0 mT) 4.5 cm
Payment card 400 Gs (40.0 mT) 2.0 cm
HDD hard drive 600 Gs (60.0 mT) 1.5 cm
Extremely neodym field is a real danger to electronics as well as pacemakers. These magnets generate a field that destroys function of sensitive medical devices. Be aware: the invisible magnetic field penetrates the body and glass. Increased vigilance must be taken by people with hearing aids and drug dispensers. Also at risk are: automatic timepieces, car keys, membranes, and screens. Do not bring the product near payment cards, hard drives, or sensitive navigation tools.

Table 8: Collisions (kinetic energy) - warning
MW 12x50 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 6.25 km/h
(1.73 m/s)
 0.06 J
30 mm 6.33 km/h
(1.76 m/s)
 0.07 J
50 mm 6.34 km/h
(1.76 m/s)
 0.07 J
100 mm 6.34 km/h
(1.76 m/s)
 0.07 J
Magnetic elements are prone to chipping – a strong collision with metal can result in shattering. Control the attraction moment – a neodymium left loose becomes dangerous. Kinetic force can trigger coating fragments or dangerous crushing to fingers. Hold the magnet firmly during installation so it doesn't hit violently against the metal. A collision at high speed almost guarantees destruction of the neodymium. Wear eye protection when playing with large magnets.

Table 9: Coating parameters (durability)
MW 12x50 / 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 SST (salt spray test) is an industry standard for determining coating lifespan in harsh conditions. Note the thickness of the protective layer.

Table 10: Electrical data (Flux)
MW 12x50 / N38

Parameter Value SI Unit / Description
Magnetic Flux 8 230 Mx 82.3 µWb
Pc Coefficient 1.49 High (Stable)
Total magnetic flux emitted by the pole surface. Key data for generator designers as well as sensors. Pc value defines the working geometry.

Table 11: Underwater work (magnet fishing)
MW 12x50 / N38

Environment Effective steel pull Effect
Air (land) 2.62 kg Standard
Water (riverbed) 3.00 kg
(+0.38 kg buoyancy gain)
+14.5%
Rust risk: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.
Contrary to myths, water does not block the magnetic field. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Shear force

*Note: On a vertical surface, the magnet holds merely ~20% of its perpendicular strength.

2. Steel saturation

*Thin metal sheet (e.g. computer case) drastically weakens the holding force.

3. Heat tolerance

*For standard magnets, the critical limit is 80°C.

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 1.49

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

Material specification

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%

Environmental data

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: 010020-2026
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The offered product is an incredibly powerful cylinder magnet, composed of modern NdFeB material, which, at dimensions of Ø12x50 mm, guarantees maximum efficiency. The MW 12x50 / N38 component features high dimensional repeatability and professional build quality, making it a perfect solution for the most demanding engineers and designers. As a cylindrical magnet with impressive force (approx. 2.62 kg), this product is available off-the-shelf from our European logistics center, ensuring lightning-fast order fulfillment. Moreover, its Ni-Cu-Ni coating effectively protects it against corrosion in typical operating conditions, guaranteeing an aesthetic appearance and durability for years.
This model is perfect for building electric motors, advanced sensors, and efficient magnetic separators, where field concentration on a small surface counts. Thanks to the pull force of 25.73 N with a weight of only 42.41 g, this rod is indispensable in electronics and wherever low weight is crucial.
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 stability in industry, specialized industrial adhesives are used, which do not react with the nickel coating and fill the gap, guaranteeing high repeatability of the connection.
Magnets NdFeB grade N38 are strong enough for 90% of applications in modeling and machine building, where excessive miniaturization with maximum force is not required. If you need even stronger magnets in the same volume (Ø12x50), 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 Ø12x50 mm, which, at a weight of 42.41 g, makes it an element with impressive magnetic energy density. The key parameter here is the lifting capacity amounting to approximately 2.62 kg (force ~25.73 N), which, with such defined dimensions, proves the high power of the NdFeB material. The product has a [NiCuNi] coating, which secures it against external factors, giving it an aesthetic, silvery shine.
This rod magnet is magnetized axially (along the height of 50 mm), which means that the N and S poles are located on the flat, circular surfaces. 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.

Pros as well as cons of rare earth magnets.

Pros

Apart from their superior magnetism, neodymium magnets have these key benefits:
  • Their strength remains stable, and after around ten years it decreases only by ~1% (according to research),
  • They show high resistance to demagnetization induced by presence of other magnetic fields,
  • By covering with a reflective coating of nickel, the element gains an elegant look,
  • Neodymium magnets deliver maximum magnetic induction on a small surface, which ensures high operational effectiveness,
  • Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can function (depending on the shape) even at a temperature of 230°C or more...
  • Possibility of accurate shaping and adapting to precise conditions,
  • Versatile presence in advanced technology sectors – they find application in hard drives, motor assemblies, medical equipment, also complex engineering applications.
  • Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Limitations

Cons of neodymium magnets: tips and applications.
  • At strong impacts they can break, therefore we advise placing them in strong housings. A metal housing provides additional protection against damage and increases the magnet's durability.
  • We warn that neodymium magnets can reduce their power at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 230°C.
  • They rust in a humid environment. For use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
  • Due to limitations in realizing threads and complex shapes in magnets, we propose using casing - magnetic mechanism.
  • Possible danger resulting from small fragments of magnets can be dangerous, in case of ingestion, 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 in case of swallowing.
  • Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Lifting parameters

Maximum magnetic pulling force – what contributes to it?

The force parameter is a measurement result executed under the following configuration:
  • on a plate made of mild steel, effectively closing the magnetic flux
  • possessing a thickness of at least 10 mm to avoid saturation
  • with an ground contact surface
  • without any air gap between the magnet and steel
  • under perpendicular application of breakaway force (90-degree angle)
  • in neutral thermal conditions

Impact of factors on magnetic holding capacity in practice

Real force is influenced by working environment parameters, mainly (from priority):
  • Space between surfaces – even a fraction of a millimeter of distance (caused e.g. by veneer or dirt) drastically reduces the pulling force, often by half at just 0.5 mm.
  • Load vector – maximum parameter is reached only during perpendicular pulling. The resistance to sliding of the magnet along the surface is usually many times lower (approx. 1/5 of the lifting capacity).
  • Wall thickness – the thinner the sheet, the weaker the hold. Magnetic flux penetrates through instead of converting into lifting capacity.
  • Material type – ideal substrate is pure iron steel. Hardened steels may generate lower lifting capacity.
  • Smoothness – full contact is obtained only on polished steel. Rough texture reduce the real contact area, reducing force.
  • Thermal environment – heating the magnet causes a temporary drop of induction. Check the maximum operating temperature for a given model.

Holding force was checked on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, in contrast under shearing force the holding force is lower. Moreover, even a slight gap between the magnet and the plate decreases the lifting capacity.

H&S for magnets
ICD Warning

Individuals with a ICD should maintain an large gap from magnets. The magnetism can stop the functioning of the implant.

Safe operation

Exercise caution. Neodymium magnets act from a distance and connect with massive power, often quicker than you can react.

Mechanical processing

Fire hazard: Rare earth powder is highly flammable. Do not process magnets without safety gear as this risks ignition.

Heat sensitivity

Standard neodymium magnets (grade N) lose magnetization when the temperature surpasses 80°C. This process is irreversible.

Shattering risk

Watch out for shards. Magnets can fracture upon violent connection, ejecting sharp fragments into the air. Eye protection is mandatory.

Threat to navigation

A powerful magnetic field disrupts the functioning of compasses in smartphones and navigation systems. Maintain magnets close to a device to avoid breaking the sensors.

Cards and drives

Do not bring magnets close to a purse, laptop, or screen. The magnetism can irreversibly ruin these devices and wipe information from cards.

Serious injuries

Danger of trauma: The pulling power is so immense that it can result in hematomas, crushing, and broken bones. Protective gloves are recommended.

Danger to the youngest

Always store magnets out of reach of children. Risk of swallowing is high, and the effects of magnets connecting inside the body are life-threatening.

Nickel coating and allergies

Studies show that the nickel plating (the usual finish) is a potent allergen. If your skin reacts to metals, refrain from touching magnets with bare hands or opt for coated magnets.

Danger! More info about hazards in the article: Safety of working with magnets.