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MW 40x15 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010067

GTIN/EAN: 5906301810667

Load capacity 42.64 kg / 418.33 N Magnetic Induction 371.91 mT / 3719 Gs
Diameter Ø
40 mm [±0,1 mm]
Height
15 mm [±0,1 mm]
Weight
141.37 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

technical details »

53.60 zł net / pcs

65.93 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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Physical properties - MW 40x15 / N38 - cylindrical magnet

Specification / characteristics - MW 40x15 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010067
GTIN/EAN 5906301810667
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 40 mm [±0,1 mm]
Height 15 mm [±0,1 mm]
Weight 141.37 g
Magnetization Direction ↑ axial
Load capacity ~ ? 42.64 kg / 418.33 N
Magnetic Induction ~ ? 371.91 mT / 3719 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 40x15 / 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

Engineering analysis of the product - report

These information constitute the outcome of a engineering simulation. Values were calculated on models for the class Nd2Fe14B. Real-world parameters may deviate from the simulation results. Use these data as a reference point during assembly planning.

Table 1: Static force (force vs distance) - interaction chart
MW 40x15 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 3718 Gs
371.8 mT
 42.64 kg / 94.00 LBS
42640.0 g / 418.3 N
 critical level
1 mm 3563 Gs
356.3 mT
 39.16 kg / 86.33 LBS
39159.5 g / 384.2 N
 critical level
2 mm 3398 Gs
339.8 mT
 35.62 kg / 78.52 LBS
35617.1 g / 349.4 N
 critical level
3 mm 3228 Gs
322.8 mT
 32.13 kg / 70.84 LBS
32130.5 g / 315.2 N
 critical level
5 mm 2880 Gs
288.0 mT
 25.58 kg / 56.40 LBS
25584.2 g / 251.0 N
 critical level
10 mm 2069 Gs
206.9 mT
 13.20 kg / 29.09 LBS
13196.7 g / 129.5 N
 critical level
15 mm 1439 Gs
143.9 mT
 6.38 kg / 14.07 LBS
6383.1 g / 62.6 N
 strong
20 mm 999 Gs
99.9 mT
 3.08 kg / 6.79 LBS
3077.9 g / 30.2 N
 strong
30 mm 507 Gs
50.7 mT
 0.79 kg / 1.75 LBS
792.4 g / 7.8 N
 low risk
50 mm 169 Gs
16.9 mT
 0.09 kg / 0.19 LBS
88.4 g / 0.9 N
 low risk
Grip strength drops significantly with every mm of spacing. Remember that even a microscopic distance (e.g., dirt, varnish, rust) significantly diminishes the holding power. Neodymiums work most effectively during direct contact; gap nullifies the power. Notice how flashily the load capacity plummet, when the product does not touch directly to the steel surface. When designing the mounting, eliminate additional spacers.

Table 2: Sliding hold (vertical surface)
MW 40x15 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 8.53 kg / 18.80 LBS
8528.0 g / 83.7 N
1 mm Stal (~0.2) 7.83 kg / 17.27 LBS
7832.0 g / 76.8 N
2 mm Stal (~0.2) 7.12 kg / 15.71 LBS
7124.0 g / 69.9 N
3 mm Stal (~0.2) 6.43 kg / 14.17 LBS
6426.0 g / 63.0 N
5 mm Stal (~0.2) 5.12 kg / 11.28 LBS
5116.0 g / 50.2 N
10 mm Stal (~0.2) 2.64 kg / 5.82 LBS
2640.0 g / 25.9 N
15 mm Stal (~0.2) 1.28 kg / 2.81 LBS
1276.0 g / 12.5 N
20 mm Stal (~0.2) 0.62 kg / 1.36 LBS
616.0 g / 6.0 N
30 mm Stal (~0.2) 0.16 kg / 0.35 LBS
158.0 g / 1.5 N
50 mm Stal (~0.2) 0.02 kg / 0.04 LBS
18.0 g / 0.2 N
The following data indicates the approximate weight limit sufficient to initiate the downward movement of the magnet downwards on a upright steel wall (assuming standard friction). The holding force is relative to the separation distance between the magnet and the surface.

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MW 40x15 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
12.79 kg / 28.20 LBS
12792.0 g / 125.5 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
8.53 kg / 18.80 LBS
8528.0 g / 83.7 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
4.26 kg / 9.40 LBS
4264.0 g / 41.8 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
21.32 kg / 47.00 LBS
21320.0 g / 209.1 N
When placing a magnet on a upright surface (e.g., a car body), it will only hold only about 1/5 of nominal attraction strength. Gravitational force and a low friction coefficient influence the fact that holders slip faster than they detach. Planning a hanger? Remember that the sliding force is significantly lower than the perpendicular breakaway force. On a painted metal, the magnet will slip down under a much lighter weight. Using a rubber layer can significantly improve the result.

Table 4: Steel thickness (saturation) - sheet metal selection
MW 40x15 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
5%
 2.13 kg / 4.70 LBS
2132.0 g / 20.9 N
1 mm
13%
 5.33 kg / 11.75 LBS
5330.0 g / 52.3 N
2 mm
25%
 10.66 kg / 23.50 LBS
10660.0 g / 104.6 N
3 mm
38%
 15.99 kg / 35.25 LBS
15990.0 g / 156.9 N
5 mm
63%
 26.65 kg / 58.75 LBS
26650.0 g / 261.4 N
10 mm
100%
 42.64 kg / 94.00 LBS
42640.0 g / 418.3 N
11 mm
100%
 42.64 kg / 94.00 LBS
42640.0 g / 418.3 N
12 mm
100%
 42.64 kg / 94.00 LBS
42640.0 g / 418.3 N
A too thin steel is unable to take in the entire magnetic field, which squanders power of the holder. If you attach a powerful product to a weak sheet, the field will penetrate right through and the attraction force will be weaker. To squeeze 100% of this magnet's power, you require a sufficiently solid element of metal. The material oversaturation means that on sheet metal structures (e.g., thin profiles), the magnet shows lower pull force. We suggest choosing the steel cross-section based on the following data.

Table 5: Thermal stability (stability) - power drop
MW 40x15 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 42.64 kg / 94.00 LBS
42640.0 g / 418.3 N
 OK
40 °C -2.2% 41.70 kg / 91.94 LBS
41701.9 g / 409.1 N
 OK
60 °C -4.4% 40.76 kg / 89.87 LBS
40763.8 g / 399.9 N
80 °C -6.6% 39.83 kg / 87.80 LBS
39825.8 g / 390.7 N
100 °C -28.8% 30.36 kg / 66.93 LBS
30359.7 g / 297.8 N
Ordinary NdFeB products lose parameters above the temperature limit. Watch out for overheating – heat can permanently damage this product. With increasing heat, the magnet's capacity briefly drops. Do not use this product close to heaters higher than its working range. Too high temperature will cause irreversible degradation of magnetism.
*Engineering note: Temperature resistance is determined by both grade, and the Permeance Coefficient Pc. Flat magnets (low Pc) are more susceptible to demagnetization sooner than long magnets. The danger warning in the table points to permanent field degradation for this specific geometry.

Table 6: Two magnets (repulsion) - field collision
MW 40x15 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Strength (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 107.12 kg / 236.16 LBS
5 156 Gs
16.07 kg / 35.42 LBS
16068 g / 157.6 N
 N/A
1 mm 102.82 kg / 226.67 LBS
7 286 Gs
15.42 kg / 34.00 LBS
15422 g / 151.3 N
 92.53 kg / 204.00 LBS
~0 Gs
2 mm 98.38 kg / 216.89 LBS
7 127 Gs
14.76 kg / 32.53 LBS
14757 g / 144.8 N
 88.54 kg / 195.20 LBS
~0 Gs
3 mm 93.92 kg / 207.06 LBS
6 964 Gs
14.09 kg / 31.06 LBS
14088 g / 138.2 N
 84.53 kg / 186.36 LBS
~0 Gs
5 mm 85.07 kg / 187.55 LBS
6 627 Gs
12.76 kg / 28.13 LBS
12760 g / 125.2 N
 76.56 kg / 168.79 LBS
~0 Gs
10 mm 64.27 kg / 141.70 LBS
5 761 Gs
9.64 kg / 21.25 LBS
9641 g / 94.6 N
 57.85 kg / 127.53 LBS
~0 Gs
20 mm 33.15 kg / 73.09 LBS
4 137 Gs
4.97 kg / 10.96 LBS
4973 g / 48.8 N
 29.84 kg / 65.78 LBS
~0 Gs
50 mm 3.84 kg / 8.47 LBS
1 408 Gs
0.58 kg / 1.27 LBS
576 g / 5.7 N
 3.46 kg / 7.62 LBS
~0 Gs
60 mm 1.99 kg / 4.39 LBS
1 014 Gs
0.30 kg / 0.66 LBS
299 g / 2.9 N
 1.79 kg / 3.95 LBS
~0 Gs
70 mm 1.08 kg / 2.38 LBS
747 Gs
0.16 kg / 0.36 LBS
162 g / 1.6 N
 0.97 kg / 2.14 LBS
~0 Gs
80 mm 0.61 kg / 1.35 LBS
563 Gs
0.09 kg / 0.20 LBS
92 g / 0.9 N
 0.55 kg / 1.22 LBS
~0 Gs
90 mm 0.36 kg / 0.80 LBS
432 Gs
0.05 kg / 0.12 LBS
54 g / 0.5 N
 0.33 kg / 0.72 LBS
~0 Gs
100 mm 0.22 kg / 0.49 LBS
339 Gs
0.03 kg / 0.07 LBS
33 g / 0.3 N
 0.20 kg / 0.44 LBS
~0 Gs
Two magnets interact from a significantly greater distance than a neodymium and metal setup. The setup of magnet-to-magnet produces a massive flux and a further horizon of action. Designing a strong closure? Apply two magnets instead of one magnet and a steel. Remember that when connecting a pair of magnets, the pinch force is extreme. The repulsion force is a bit weaker than the connection force, but still impressive.
*The magnetic induction in repulsion mode drops to ~0 Gs at the midpoint between the magnets (caused by magnetic field nullification).
Important: Estimates show friction force of dual same magnets (friction ~0.15 for Ni-Ni coating).

Table 7: Protective zones (implants) - warnings
MW 40x15 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 19.0 cm
Hearing aid 10 Gs (1.0 mT) 15.0 cm
Mechanical watch 20 Gs (2.0 mT) 11.5 cm
Mobile device 40 Gs (4.0 mT) 9.0 cm
Remote 50 Gs (5.0 mT) 8.5 cm
Payment card 400 Gs (40.0 mT) 3.5 cm
HDD hard drive 600 Gs (60.0 mT) 3.0 cm
A strong magnetic field poses a real danger to IT equipment as well as pacemakers. These neodymiums produce a field that prevents correct functioning of digital equipment. Remember: the invisible magnetic field passes through tissues and glass. Exceptional care must be taken by people with cochlear implants and insulin pumps. The risk also applies to: automatic timepieces, remotes, speakers, and displays. Avoid contact with magnetic cards, hard drives, or precise measuring instruments.

Table 8: Collisions (cracking risk) - warning
MW 40x15 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 21.80 km/h
(6.05 m/s)
 2.59 J
30 mm 25.11 km/h
(6.97 m/s)
 3.44 J
50 mm 25.32 km/h
(7.03 m/s)
 3.50 J
100 mm 25.36 km/h
(7.04 m/s)
 3.51 J
Neodymium magnets are delicate – a collision with steel risks their cracking. Control the attraction moment – a neodymium left loose turns into a projectile. Striking energy can destroy the magnet or injury to fingers. Always hold the magnet during bringing near metal so it doesn't hit violently against the metal. A contact at a velocity of dozens of km/h almost guarantees destruction of the magnet. Wear eye protection when playing with powerful specimens.

Table 9: Anti-corrosion coating durability
MW 40x15 / 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)
For outdoor applications, an epoxy coating is required; standard nickel is intended for indoor use. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Construction data (Flux)
MW 40x15 / N38

Parameter Value SI Unit / Description
Magnetic Flux 48 650 Mx 486.5 µWb
Pc Coefficient 0.48 Low (Flat)
Flux value passing through the magnet pole. Essential parameter when building generators and motors. The Pc coefficient determines the magnet's operating point.

Table 11: Physics of underwater searching
MW 40x15 / N38

Environment Effective steel pull Effect
Air (land) 42.64 kg Standard
Water (riverbed) 48.82 kg
(+6.18 kg buoyancy gain)
+14.5%
Warning: 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

*Caution: On a vertical wall, the magnet holds just a fraction of its nominal pull.

2. Plate thickness effect

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

3. Thermal stability

*For standard magnets, the max working temp is 80°C.

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.48

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.

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%

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: 010067-2026
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This product is an extremely powerful cylinder magnet, produced from advanced NdFeB material, which, with dimensions of Ø40x15 mm, guarantees the highest energy density. This specific item boasts high dimensional repeatability and professional build quality, making it a perfect solution for professional engineers and designers. As a magnetic rod with impressive force (approx. 42.64 kg), this product is available off-the-shelf from our European logistics center, ensuring quick order fulfillment. Furthermore, 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 created for building generators, advanced Hall effect sensors, and efficient filters, where maximum induction on a small surface counts. Thanks to the pull force of 418.33 N with a weight of only 141.37 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, anaerobic resins 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 the strongest magnets in the same volume (Ø40x15), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our warehouse.
This model is characterized by dimensions Ø40x15 mm, which, at a weight of 141.37 g, makes it an element with impressive magnetic energy density. The value of 418.33 N means that the magnet is capable of holding a weight many times exceeding its own mass of 141.37 g. The product has a [NiCuNi] coating, which protects the surface against oxidation, giving it an aesthetic, silvery shine.
This rod magnet is magnetized axially (along the height of 15 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 diametrically if your project requires it.

Advantages as well as disadvantages of Nd2Fe14B magnets.

Pros

Apart from their strong magnetism, neodymium magnets have these key benefits:
  • Their power is durable, and after around ten years it drops only by ~1% (theoretically),
  • They possess excellent resistance to magnetism drop when exposed to external magnetic sources,
  • A magnet with a smooth gold surface is more attractive,
  • Magnets are characterized by maximum magnetic induction on the surface,
  • Through (adequate) combination of ingredients, they can achieve high thermal resistance, allowing for action at temperatures approaching 230°C and above...
  • In view of the potential of flexible molding and customization to unique projects, magnetic components can be modeled in a wide range of geometric configurations, which expands the range of possible applications,
  • Universal use in modern technologies – they are utilized in hard drives, electromotive mechanisms, medical devices, as well as modern systems.
  • Thanks to concentrated force, small magnets offer high operating force, with minimal size,

Limitations

Disadvantages of neodymium magnets:
  • They are prone to damage upon too strong impacts. To avoid cracks, it is worth securing magnets using a steel holder. Such protection not only shields the magnet but also improves its resistance to damage
  • Neodymium magnets lose power 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
  • They oxidize in a humid environment - during use outdoors we advise using waterproof magnets e.g. in rubber, plastic
  • Limited possibility of creating nuts in the magnet and complex forms - preferred is casing - magnetic holder.
  • Health risk to health – tiny shards of magnets pose a threat, in case of ingestion, which is particularly important in the aspect of protecting the youngest. Furthermore, tiny parts of these magnets are able to complicate diagnosis medical after entering the body.
  • With mass production the cost of neodymium magnets is a challenge,

Pull force analysis

Optimal lifting capacity of a neodymium magnet – what affects it?

Magnet power was defined for optimal configuration, taking into account:
  • with the contact of a sheet made of low-carbon steel, ensuring full magnetic saturation
  • possessing a thickness of at least 10 mm to ensure full flux closure
  • with an ideally smooth touching surface
  • with total lack of distance (no coatings)
  • under vertical application of breakaway force (90-degree angle)
  • in temp. approx. 20°C

Practical lifting capacity: influencing factors

Holding efficiency impacted by specific conditions, mainly (from priority):
  • Gap between surfaces – even a fraction of a millimeter of separation (caused e.g. by veneer or dirt) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
  • Pull-off angle – note that the magnet has greatest strength perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the nominal value.
  • Wall thickness – the thinner the sheet, the weaker the hold. Magnetic flux passes through the material instead of converting into lifting capacity.
  • Material type – the best choice is high-permeability steel. Hardened steels may have worse magnetic properties.
  • Surface condition – ground elements guarantee perfect abutment, which improves force. Uneven metal reduce efficiency.
  • Thermal factor – high temperature weakens magnetic field. Exceeding the limit temperature can permanently demagnetize the magnet.

Lifting capacity was measured using a steel plate with a smooth surface of suitable thickness (min. 20 mm), under perpendicular detachment force, in contrast under parallel forces the holding force is lower. Additionally, even a small distance between the magnet and the plate reduces the holding force.

Safe handling of neodymium magnets
Finger safety

Big blocks can break fingers instantly. Do not put your hand betwixt two attracting surfaces.

Sensitization to coating

Medical facts indicate that the nickel plating (standard magnet coating) is a strong allergen. For allergy sufferers, avoid direct skin contact and choose encased magnets.

Handling rules

Exercise caution. Neodymium magnets act from a distance and connect with huge force, often faster than you can react.

Magnet fragility

NdFeB magnets are ceramic materials, meaning they are prone to chipping. Clashing of two magnets leads to them cracking into small pieces.

Data carriers

Avoid bringing magnets close to a wallet, computer, or screen. The magnetism can permanently damage these devices and erase data from cards.

Keep away from children

NdFeB magnets are not toys. Swallowing a few magnets may result in them pinching intestinal walls, which poses a severe health hazard and requires urgent medical intervention.

Combustion hazard

Drilling and cutting of neodymium magnets carries a risk of fire hazard. Neodymium dust oxidizes rapidly with oxygen and is hard to extinguish.

Implant safety

For implant holders: Powerful magnets affect medical devices. Keep minimum 30 cm distance or request help to handle the magnets.

GPS and phone interference

Navigation devices and smartphones are highly sensitive to magnetic fields. Close proximity with a strong magnet can permanently damage the sensors in your phone.

Permanent damage

Regular neodymium magnets (N-type) lose magnetization when the temperature surpasses 80°C. This process is irreversible.

Danger! Need more info? Read our article: Are neodymium magnets dangerous?