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MW 10x15 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010005

GTIN/EAN: 5906301810049

5.00
Load capacity 2.60 kg / 25.51 N Magnetic Induction 587.44 mT / 5874 Gs
Diameter Ø
10 mm [±0,1 mm]
Height
15 mm [±0,1 mm]
Weight
8.84 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

technical details »

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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 data of the product - MW 10x15 / N38 - cylindrical magnet

Specification / characteristics - MW 10x15 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010005
GTIN/EAN 5906301810049
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 10 mm [±0,1 mm]
Height 15 mm [±0,1 mm]
Weight 8.84 g
Magnetization Direction ↑ axial
Load capacity ~ ? 2.60 kg / 25.51 N
Magnetic Induction ~ ? 587.44 mT / 5874 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 10x15 / 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 analysis of the product - data

These information constitute the result of a physical analysis. Values were calculated on models for the material Nd2Fe14B. Real-world performance might slightly differ from theoretical values. Use these data as a preliminary roadmap when designing systems.

Table 1: Static force (pull vs distance) - power drop
MW 10x15 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 5870 Gs
587.0 mT
 2.60 kg / 5.73 lbs
2600.0 g / 25.5 N
 strong
1 mm 4702 Gs
470.2 mT
 1.67 kg / 3.68 lbs
1668.3 g / 16.4 N
 weak grip
2 mm 3645 Gs
364.5 mT
 1.00 kg / 2.21 lbs
1002.8 g / 9.8 N
 weak grip
3 mm 2784 Gs
278.4 mT
 0.58 kg / 1.29 lbs
584.8 g / 5.7 N
 weak grip
5 mm 1631 Gs
163.1 mT
 0.20 kg / 0.44 lbs
200.7 g / 2.0 N
 weak grip
10 mm 534 Gs
53.4 mT
 0.02 kg / 0.05 lbs
21.5 g / 0.2 N
 weak grip
15 mm 234 Gs
23.4 mT
 0.00 kg / 0.01 lbs
4.1 g / 0.0 N
 weak grip
20 mm 123 Gs
12.3 mT
 0.00 kg / 0.00 lbs
1.1 g / 0.0 N
 weak grip
30 mm 46 Gs
4.6 mT
 0.00 kg / 0.00 lbs
0.2 g / 0.0 N
 weak grip
50 mm 13 Gs
1.3 mT
 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
 weak grip
Pulling power drops sharply with every subsequent millimeter of spacing. Note that every additional insulation layer (e.g., contamination, varnish, rust) significantly diminishes the holding power. Magnets hold optimally in perfect adhesion; distance drastically cuts the force. Analyze how quickly the pull force fall, when the magnet does not adhere tightly to the metal substrate. When designing the mounting, discard additional spacers.

Table 2: Sliding capacity (wall)
MW 10x15 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.52 kg / 1.15 lbs
520.0 g / 5.1 N
1 mm Stal (~0.2) 0.33 kg / 0.74 lbs
334.0 g / 3.3 N
2 mm Stal (~0.2) 0.20 kg / 0.44 lbs
200.0 g / 2.0 N
3 mm Stal (~0.2) 0.12 kg / 0.26 lbs
116.0 g / 1.1 N
5 mm Stal (~0.2) 0.04 kg / 0.09 lbs
40.0 g / 0.4 N
10 mm Stal (~0.2) 0.00 kg / 0.01 lbs
4.0 g / 0.0 N
15 mm Stal (~0.2) 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
20 mm Stal (~0.2) 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
30 mm Stal (~0.2) 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
50 mm Stal (~0.2) 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
The table below shows the theoretical weight limit sufficient to cause the sliding of the magnet down along a upright metal surface (assuming standard friction coefficient). This value depends on the air gap between the magnet and the metal.

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MW 10x15 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.78 kg / 1.72 lbs
780.0 g / 7.7 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.52 kg / 1.15 lbs
520.0 g / 5.1 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.26 kg / 0.57 lbs
260.0 g / 2.6 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
1.30 kg / 2.87 lbs
1300.0 g / 12.8 N
When placing a magnet on a upright wall (e.g., a car body), it will maintain barely approx. 20%-30% of nominal attraction strength. Gravity and a weak degree of grip mean that magnets slip easier than they pull off. Designing a vertical fastening? Remember that the sliding force is noticeably lower than the maximum static pull force. On a painted metal, the holder will slide down under a noticeably lighter load. Using a rubber pad can significantly increase the grip.

Table 4: Steel thickness (saturation) - power losses
MW 10x15 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.26 kg / 0.57 lbs
260.0 g / 2.6 N
1 mm
25%
 0.65 kg / 1.43 lbs
650.0 g / 6.4 N
2 mm
50%
 1.30 kg / 2.87 lbs
1300.0 g / 12.8 N
3 mm
75%
 1.95 kg / 4.30 lbs
1950.0 g / 19.1 N
5 mm
100%
 2.60 kg / 5.73 lbs
2600.0 g / 25.5 N
10 mm
100%
 2.60 kg / 5.73 lbs
2600.0 g / 25.5 N
11 mm
100%
 2.60 kg / 5.73 lbs
2600.0 g / 25.5 N
12 mm
100%
 2.60 kg / 5.73 lbs
2600.0 g / 25.5 N
A thin sheet is not enough to absorb the full magnetic flux, which squanders power of the magnet. Should you install a neodymium to a too thin substrate, the flux will penetrate right through and the pull force will drop sharply. To squeeze 100% of this neodymium's potential, you need a suitably thick piece of steel. The saturation phenomenon means that on sheet metal structures (e.g., appliance housings), the product holds weaker. We recommend selecting the steel cross-section according to the table below.

Table 5: Thermal resistance (material behavior) - power drop
MW 10x15 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 2.60 kg / 5.73 lbs
2600.0 g / 25.5 N
 OK
40 °C -2.2% 2.54 kg / 5.61 lbs
2542.8 g / 24.9 N
 OK
60 °C -4.4% 2.49 kg / 5.48 lbs
2485.6 g / 24.4 N
 OK
80 °C -6.6% 2.43 kg / 5.35 lbs
2428.4 g / 23.8 N
100 °C -28.8% 1.85 kg / 4.08 lbs
1851.2 g / 18.2 N
Classic neodymiums irreversibly lose power past the thermal threshold. Watch out for overheating – heat can permanently destroy this magnet. As the temperature rises, the magnet's power briefly decreases. Refrain from using this magnet near heat sources exceeding its safe range. Exceeding the critical threshold will cause destruction of magnetism.
*Technical advisory: Temperature resistance is determined by both grade, as well as the dimension ratios. Flat magnets (low permeance coefficient) may lose charge permanently under lower heat stress compared to rod magnets. Red status in the table signals a risk of irreversible loss for this specific geometry.

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MW 10x15 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Strength (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 16.68 kg / 36.78 lbs
6 103 Gs
2.50 kg / 5.52 lbs
2502 g / 24.5 N
 N/A
1 mm 13.52 kg / 29.80 lbs
10 567 Gs
2.03 kg / 4.47 lbs
2028 g / 19.9 N
 12.17 kg / 26.82 lbs
~0 Gs
2 mm 10.70 kg / 23.60 lbs
9 404 Gs
1.61 kg / 3.54 lbs
1606 g / 15.8 N
 9.63 kg / 21.24 lbs
~0 Gs
3 mm 8.35 kg / 18.40 lbs
8 304 Gs
1.25 kg / 2.76 lbs
1252 g / 12.3 N
 7.51 kg / 16.56 lbs
~0 Gs
5 mm 4.92 kg / 10.85 lbs
6 377 Gs
0.74 kg / 1.63 lbs
738 g / 7.2 N
 4.43 kg / 9.77 lbs
~0 Gs
10 mm 1.29 kg / 2.84 lbs
3 262 Gs
0.19 kg / 0.43 lbs
193 g / 1.9 N
 1.16 kg / 2.56 lbs
~0 Gs
20 mm 0.14 kg / 0.30 lbs
1 068 Gs
0.02 kg / 0.05 lbs
21 g / 0.2 N
 0.12 kg / 0.27 lbs
~0 Gs
50 mm 0.00 kg / 0.01 lbs
145 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
60 mm 0.00 kg / 0.00 lbs
93 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
70 mm 0.00 kg / 0.00 lbs
63 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
80 mm 0.00 kg / 0.00 lbs
45 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
90 mm 0.00 kg / 0.00 lbs
33 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
100 mm 0.00 kg / 0.00 lbs
25 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
Two magnetic products interact from a significantly greater distance than a magnet and sheet setup. Such a system of two magnets generates a stronger field and a further horizon of action. Designing a solid fastener? Use a pair of magnets instead of a neodymium and a steel. Remember that when attracting two neodymiums, the pinch force is huge. The levitation is slightly lower than the connection force, but still large.
*The magnetic induction in repulsion mode reaches ~0 Gs in the exact middle between the magnets (due to field cancellation).
* Figures refer to friction force of two identical magnets (friction coefficient ~0.15 for Ni-Ni plating).

Table 7: Protective zones (implants) - warnings
MW 10x15 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 7.5 cm
Hearing aid 10 Gs (1.0 mT) 5.5 cm
Timepiece 20 Gs (2.0 mT) 4.5 cm
Mobile device 40 Gs (4.0 mT) 3.5 cm
Remote 50 Gs (5.0 mT) 3.0 cm
Payment card 400 Gs (40.0 mT) 1.5 cm
HDD hard drive 600 Gs (60.0 mT) 1.0 cm
Powerful magnet radiation is a real danger to electronic devices as well as medical implants. These neodymiums generate a field that disrupts operation of digital equipment. Remember: the invisible magnetic field penetrates the body and plastic. Exceptional care must be exercised by people with hearing aids and insulin pumps. The risk also applies to: automatic timepieces, car keys, speakers, and screens. Do not place the magnet near cards, HDD media, or precise measuring instruments.

Table 8: Impact energy (cracking risk) - collision effects
MW 10x15 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 12.35 km/h
(3.43 m/s)
 0.05 J
30 mm 12.43 km/h
(3.45 m/s)
 0.05 J
50 mm 12.43 km/h
(3.45 m/s)
 0.05 J
100 mm 12.43 km/h
(3.45 m/s)
 0.05 J
Magnetic elements are very brittle – a collision with steel causes immediate chipping. Watch the impact speed – a magnet released freely turns into a projectile. Striking energy can destroy the magnet or painful pinches to fingers. Hold the magnet firmly during bringing near metal so it doesn't hit violently against the steel surface. A contact at a velocity of dozens of km/h ends with a crack of the magnet. Wear eye protection when playing with powerful specimens.

Table 9: Coating parameters (durability)
MW 10x15 / 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)
Neodymium magnets are highly susceptible to corrosion without proper protection. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Electrical data (Flux)
MW 10x15 / N38

Parameter Value SI Unit / Description
Magnetic Flux 4 950 Mx 49.5 µWb
Pc Coefficient 1.09 High (Stable)
Flux value emitted by the pole surface. Key data when building generators as well as sensors. Pc value determines the magnet's operating point.

Table 11: Underwater work (magnet fishing)
MW 10x15 / N38

Environment Effective steel pull Effect
Air (land) 2.60 kg Standard
Water (riverbed) 2.98 kg
(+0.38 kg buoyancy gain)
+14.5%
Rust risk: Remember to wipe the magnet thoroughly after removing it from water and apply a protective layer (e.g., oil) to avoid corrosion.
The magnetic field penetrates through water without any losses. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Wall mount (shear)

*Caution: On a vertical surface, the magnet holds only approx. 20-30% of its nominal pull.

2. Plate thickness effect

*Thin metal sheet (e.g. computer case) significantly limits the holding force.

3. Power loss vs temp

*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) = 1.09

The chart above illustrates the magnetic characteristics of the material within the second quadrant of the hysteresis loop. 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.

Engineering data and GPSR

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%

Sustainability

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: 010005-2026
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The offered product is a very strong cylinder magnet, composed of advanced NdFeB material, which, with dimensions of Ø10x15 mm, guarantees the highest energy density. The MW 10x15 / N38 model boasts 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 significant force (approx. 2.60 kg), this product is available off-the-shelf from our warehouse in Poland, ensuring quick order fulfillment. Moreover, its Ni-Cu-Ni coating shields it against corrosion in typical operating conditions, ensuring an aesthetic appearance and durability for years.
It successfully proves itself in DIY projects, advanced robotics, and broadly understood industry, serving as a positioning or actuating element. Thanks to the high power of 25.51 N with a weight of only 8.84 g, this cylindrical magnet is indispensable in electronics and wherever low weight is crucial.
Since our magnets have a tolerance of ±0.1mm, the best method is to glue them into holes with a slightly larger diameter (e.g., 10.1 mm) using epoxy glues. To ensure stability in automation, specialized industrial adhesives are used, which do not react with the nickel coating and fill the gap, guaranteeing high repeatability of the connection.
Grade N38 is the most popular standard for professional neodymium magnets, offering an optimal price-to-power ratio and high resistance to demagnetization. If you need even stronger magnets in the same volume (Ø10x15), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our store.
The presented product is a neodymium magnet with precisely defined parameters: diameter 10 mm and height 15 mm. The key parameter here is the lifting capacity amounting to approximately 2.60 kg (force ~25.51 N), which, with such compact dimensions, proves the high grade of the NdFeB material. The product has a [NiCuNi] coating, which secures it against external factors, giving it an aesthetic, silvery shine.
This cylinder is magnetized axially (along the height of 15 mm), which means that the N and S poles are located on the flat, circular surfaces. Such an arrangement is most desirable when connecting magnets in stacks (e.g., in filters) or when mounting in sockets at the bottom of a hole. On request, we can also produce versions magnetized through the diameter if your project requires it.

Pros as well as cons of neodymium magnets.

Pros

Besides their remarkable field intensity, neodymium magnets offer the following advantages:
  • They have constant strength, and over nearly ten years their attraction force decreases symbolically – ~1% (in testing),
  • They are noted for resistance to demagnetization induced by external disturbances,
  • In other words, due to the glossy finish of gold, the element gains a professional look,
  • Magnetic induction on the working part of the magnet is very high,
  • Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
  • Possibility of precise modeling and optimizing to individual applications,
  • Fundamental importance in electronics industry – they are used in hard drives, electric motors, diagnostic systems, as well as industrial machines.
  • Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Disadvantages

Disadvantages of NdFeB magnets:
  • Susceptibility to cracking is one of their disadvantages. Upon intense impact they can break. We advise keeping them in a strong case, which not only protects them against impacts but also increases their durability
  • Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of strength (a factor is the shape and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely resistant to heat
  • Magnets exposed to a humid environment can rust. Therefore while using outdoors, we recommend using waterproof magnets made of rubber, plastic or other material protecting against moisture
  • Limited ability of making nuts in the magnet and complicated forms - preferred is cover - mounting mechanism.
  • Health risk related to microscopic parts of magnets can be dangerous, when accidentally swallowed, which gains importance in the context of child health protection. It is also worth noting that small elements of these magnets can disrupt the diagnostic process medical in case of swallowing.
  • Due to neodymium price, their price is higher than average,

Holding force characteristics

Optimal lifting capacity of a neodymium magnet – what contributes to it?

Holding force of 2.60 kg is a result of laboratory testing conducted under standard conditions:
  • with the use of a sheet made of special test steel, guaranteeing maximum field concentration
  • whose thickness is min. 10 mm
  • with a plane perfectly flat
  • with zero gap (no impurities)
  • for force acting at a right angle (in the magnet axis)
  • in neutral thermal conditions

Determinants of lifting force in real conditions

Effective lifting capacity is influenced by working environment parameters, such as (from priority):
  • Space between surfaces – every millimeter of distance (caused e.g. by veneer or dirt) significantly weakens the pulling force, often by half at just 0.5 mm.
  • Force direction – note that the magnet has greatest strength perpendicularly. Under sliding down, the holding force drops significantly, often to levels of 20-30% of the nominal value.
  • Substrate thickness – to utilize 100% power, the steel must be sufficiently thick. Paper-thin metal restricts the lifting capacity (the magnet "punches through" it).
  • Chemical composition of the base – mild steel gives the best results. Higher carbon content lower magnetic permeability and lifting capacity.
  • Smoothness – full contact is possible only on polished steel. Any scratches and bumps create air cushions, weakening the magnet.
  • Thermal environment – heating the magnet causes a temporary drop of induction. Check the thermal limit for a given model.

Holding force was tested on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, however under attempts to slide the magnet the holding force is lower. Moreover, even a small distance between the magnet’s surface and the plate lowers the lifting capacity.

Precautions when working with neodymium magnets
Avoid contact if allergic

Some people suffer from a sensitization to nickel, which is the common plating for NdFeB magnets. Prolonged contact might lead to an allergic reaction. It is best to wear protective gloves.

Pinching danger

Large magnets can crush fingers instantly. Do not put your hand between two strong magnets.

Material brittleness

Neodymium magnets are ceramic materials, which means they are very brittle. Impact of two magnets will cause them cracking into shards.

Heat warning

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

Pacemakers

Health Alert: Strong magnets can deactivate heart devices and defibrillators. Stay away if you have medical devices.

Precision electronics

GPS units and smartphones are extremely sensitive to magnetic fields. Close proximity with a strong magnet can ruin the internal compass in your phone.

Do not drill into magnets

Fire warning: Rare earth powder is highly flammable. Avoid machining magnets without safety gear as this risks ignition.

Danger to the youngest

These products are not intended for children. Swallowing multiple magnets may result in them attracting across intestines, which constitutes a severe health hazard and requires urgent medical intervention.

Keep away from computers

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

Do not underestimate power

Before use, check safety instructions. Sudden snapping can destroy the magnet or injure your hand. Be predictive.

Caution! Details about hazards in the article: Magnet Safety Guide.