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MW 38x12 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010060

GTIN/EAN: 5906301810599

Load capacity 32.79 kg / 321.71 N Magnetic Induction 331.00 mT / 3310 Gs
Diameter Ø
38 mm [±0,1 mm]
Height
12 mm [±0,1 mm]
Weight
102.07 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

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26.10 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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Product card - MW 38x12 / N38 - cylindrical magnet

Specification / characteristics - MW 38x12 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010060
GTIN/EAN 5906301810599
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 38 mm [±0,1 mm]
Height 12 mm [±0,1 mm]
Weight 102.07 g
Magnetization Direction ↑ axial
Load capacity ~ ? 32.79 kg / 321.71 N
Magnetic Induction ~ ? 331.00 mT / 3310 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 38x12 / 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

The following information constitute the outcome of a mathematical analysis. Values were calculated on algorithms for the class Nd2Fe14B. Operational performance may deviate from the simulation results. Use these calculations as a supplementary guide during assembly planning.

Table 1: Static pull force (force vs gap) - power drop
MW 38x12 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 3309 Gs
330.9 mT
 32.79 kg / 72.29 LBS
32790.0 g / 321.7 N
 crushing
1 mm 3175 Gs
317.5 mT
 30.18 kg / 66.54 LBS
30182.9 g / 296.1 N
 crushing
2 mm 3029 Gs
302.9 mT
 27.46 kg / 60.55 LBS
27464.0 g / 269.4 N
 crushing
3 mm 2875 Gs
287.5 mT
 24.74 kg / 54.55 LBS
24742.8 g / 242.7 N
 crushing
5 mm 2556 Gs
255.6 mT
 19.56 kg / 43.13 LBS
19563.2 g / 191.9 N
 crushing
10 mm 1805 Gs
180.5 mT
 9.75 kg / 21.50 LBS
9750.4 g / 95.7 N
 medium risk
15 mm 1229 Gs
122.9 mT
 4.52 kg / 9.96 LBS
4519.1 g / 44.3 N
 medium risk
20 mm 836 Gs
83.6 mT
 2.09 kg / 4.61 LBS
2092.9 g / 20.5 N
 medium risk
30 mm 411 Gs
41.1 mT
 0.51 kg / 1.11 LBS
505.7 g / 5.0 N
 low risk
50 mm 132 Gs
13.2 mT
 0.05 kg / 0.12 LBS
52.4 g / 0.5 N
 low risk
Magnetic force weakens drastically per each millimeter of spacing. Note that every additional insulation layer (e.g., dirt, varnish, dust) significantly diminishes the holding power. Magnets operate most effectively at the point of direct contact; air break drastically cuts the force. Notice how flashily the pull force fall, when the magnet does not touch directly to the steel surface. When calculating the mounting, eliminate unnecessary gaps.

Table 2: Shear load (wall)
MW 38x12 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 6.56 kg / 14.46 LBS
6558.0 g / 64.3 N
1 mm Stal (~0.2) 6.04 kg / 13.31 LBS
6036.0 g / 59.2 N
2 mm Stal (~0.2) 5.49 kg / 12.11 LBS
5492.0 g / 53.9 N
3 mm Stal (~0.2) 4.95 kg / 10.91 LBS
4948.0 g / 48.5 N
5 mm Stal (~0.2) 3.91 kg / 8.62 LBS
3912.0 g / 38.4 N
10 mm Stal (~0.2) 1.95 kg / 4.30 LBS
1950.0 g / 19.1 N
15 mm Stal (~0.2) 0.90 kg / 1.99 LBS
904.0 g / 8.9 N
20 mm Stal (~0.2) 0.42 kg / 0.92 LBS
418.0 g / 4.1 N
30 mm Stal (~0.2) 0.10 kg / 0.22 LBS
102.0 g / 1.0 N
50 mm Stal (~0.2) 0.01 kg / 0.02 LBS
10.0 g / 0.1 N
The table below defines the estimated weight limit needed to initiate the downward movement of the magnet vertically on a upright steel wall (considering standard friction). This parameter depends on the distance between the magnet and the surface.

Table 3: Wall mounting (sliding) - vertical pull
MW 38x12 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
9.84 kg / 21.69 LBS
9837.0 g / 96.5 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
6.56 kg / 14.46 LBS
6558.0 g / 64.3 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
3.28 kg / 7.23 LBS
3279.0 g / 32.2 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
16.40 kg / 36.14 LBS
16395.0 g / 160.8 N
When mounting a holder on a upright surface (e.g., a car body), it will maintain only about 1/5 of nominal attraction strength. Gravitational force and a low friction coefficient influence the fact that products slip faster than they detach. Designing a vertical fastening? Remember that the shear force is noticeably lower than the maximum static pull force. On a painted metal, the magnet will slide down under a noticeably lighter load. Using a rubber pad can drastically increase the grip.

Table 4: Steel thickness (substrate influence) - sheet metal selection
MW 38x12 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
5%
 1.64 kg / 3.61 LBS
1639.5 g / 16.1 N
1 mm
13%
 4.10 kg / 9.04 LBS
4098.8 g / 40.2 N
2 mm
25%
 8.20 kg / 18.07 LBS
8197.5 g / 80.4 N
3 mm
38%
 12.30 kg / 27.11 LBS
12296.3 g / 120.6 N
5 mm
63%
 20.49 kg / 45.18 LBS
20493.8 g / 201.0 N
10 mm
100%
 32.79 kg / 72.29 LBS
32790.0 g / 321.7 N
11 mm
100%
 32.79 kg / 72.29 LBS
32790.0 g / 321.7 N
12 mm
100%
 32.79 kg / 72.29 LBS
32790.0 g / 321.7 N
A thin metal plate is unable to focus the entire magnetic field, which weakens actual performance of the holder. If you attach a powerful product to a too thin substrate, the field will pass right through and the holding will be smaller. To squeeze full efficiency of this magnet's power, you need a suitably thick element of steel. The saturation effect means that on delicate walls (e.g., thin profiles), the holder works worse. We advise picking the steel cross-section based on the following data.

Table 5: Thermal resistance (stability) - resistance threshold
MW 38x12 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 32.79 kg / 72.29 LBS
32790.0 g / 321.7 N
 OK
40 °C -2.2% 32.07 kg / 70.70 LBS
32068.6 g / 314.6 N
 OK
60 °C -4.4% 31.35 kg / 69.11 LBS
31347.2 g / 307.5 N
80 °C -6.6% 30.63 kg / 67.52 LBS
30625.9 g / 300.4 N
100 °C -28.8% 23.35 kg / 51.47 LBS
23346.5 g / 229.0 N
Standard neodymium magnets irreversibly lose power after exceeding the maximum temperature. Watch out for overheating – excessive heat can irreversibly damage this magnet. As the temperature rises, the neodymium's force temporarily lowers. Do not use this magnet close to ovens higher than its operating temperature limit. Too high temperature will lead to destruction of magnetic properties.
*Technical advisory: Temperature resistance depends not only on the material grade, as well as the dimension ratios. Thin magnets (low Pc) may lose charge permanently sooner than long magnets. The danger warning in the table indicates a risk of irreversible loss for this specific geometry.

Table 6: Two magnets (attraction) - field collision
MW 38x12 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 76.58 kg / 168.83 LBS
4 859 Gs
11.49 kg / 25.32 LBS
11487 g / 112.7 N
 N/A
1 mm 73.60 kg / 162.27 LBS
6 489 Gs
11.04 kg / 24.34 LBS
11040 g / 108.3 N
 66.24 kg / 146.04 LBS
~0 Gs
2 mm 70.49 kg / 155.40 LBS
6 350 Gs
10.57 kg / 23.31 LBS
10573 g / 103.7 N
 63.44 kg / 139.86 LBS
~0 Gs
3 mm 67.33 kg / 148.43 LBS
6 206 Gs
10.10 kg / 22.26 LBS
10099 g / 99.1 N
 60.59 kg / 133.59 LBS
~0 Gs
5 mm 60.95 kg / 134.38 LBS
5 905 Gs
9.14 kg / 20.16 LBS
9143 g / 89.7 N
 54.86 kg / 120.94 LBS
~0 Gs
10 mm 45.69 kg / 100.73 LBS
5 113 Gs
6.85 kg / 15.11 LBS
6853 g / 67.2 N
 41.12 kg / 90.65 LBS
~0 Gs
20 mm 22.77 kg / 50.20 LBS
3 609 Gs
3.42 kg / 7.53 LBS
3416 g / 33.5 N
 20.49 kg / 45.18 LBS
~0 Gs
50 mm 2.34 kg / 5.17 LBS
1 158 Gs
0.35 kg / 0.78 LBS
352 g / 3.5 N
 2.11 kg / 4.65 LBS
~0 Gs
60 mm 1.18 kg / 2.60 LBS
822 Gs
0.18 kg / 0.39 LBS
177 g / 1.7 N
 1.06 kg / 2.34 LBS
~0 Gs
70 mm 0.63 kg / 1.38 LBS
598 Gs
0.09 kg / 0.21 LBS
94 g / 0.9 N
 0.56 kg / 1.24 LBS
~0 Gs
80 mm 0.35 kg / 0.77 LBS
446 Gs
0.05 kg / 0.12 LBS
52 g / 0.5 N
 0.31 kg / 0.69 LBS
~0 Gs
90 mm 0.20 kg / 0.45 LBS
340 Gs
0.03 kg / 0.07 LBS
30 g / 0.3 N
 0.18 kg / 0.40 LBS
~0 Gs
100 mm 0.12 kg / 0.27 LBS
264 Gs
0.02 kg / 0.04 LBS
18 g / 0.2 N
 0.11 kg / 0.24 LBS
~0 Gs
Two magnetic products attract each other from a much further distance than a magnet and steel combination. Such a system of magnet-to-magnet produces a massive flux and a further horizon of operation. Planning to create a powerful holder? Use a pair of magnets instead of one magnet and a striker plate. Exercise caution that when bringing together two magnets, the impact force is huge. The repulsion force is marginally weaker than the attraction, but still impressive.
*The magnetic induction for N-N configuration drops to ~0 Gs in the exact middle between the magnets (due to field cancellation).
* Estimates apply to shear force of a pair of identical magnets (friction coefficient ~0.15 for Ni-Ni plating).

Table 7: Hazards (electronics) - precautionary measures
MW 38x12 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 17.0 cm
Hearing aid 10 Gs (1.0 mT) 13.5 cm
Mechanical watch 20 Gs (2.0 mT) 10.5 cm
Phone / Smartphone 40 Gs (4.0 mT) 8.0 cm
Remote 50 Gs (5.0 mT) 7.5 cm
Payment card 400 Gs (40.0 mT) 3.5 cm
HDD hard drive 600 Gs (60.0 mT) 2.5 cm
A strong magnetic field poses a real danger to IT equipment and pacemakers. These magnets generate a flux that prevents correct functioning of sensitive medical devices. Be aware: the unseen radiation passes through tissues and housings. Special caution must be taken by people with hearing aids and drug dispensers. The risk also applies to: mechanical watches, car keys, speakers, and screens. Avoid contact with magnetic cards, hard drives, or precise measuring instruments.

Table 8: Impact energy (kinetic energy) - warning
MW 38x12 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 22.42 km/h
(6.23 m/s)
 1.98 J
30 mm 25.58 km/h
(7.11 m/s)
 2.58 J
50 mm 25.76 km/h
(7.16 m/s)
 2.61 J
100 mm 25.79 km/h
(7.16 m/s)
 2.62 J
Magnetic elements are prone to chipping – a strong collision with metal can result in shattering. Watch the impact speed – a magnet released freely speeds with massive force. Impact energy can destroy the magnet or injury to skin. Always hold the magnet during bringing near metal so it doesn't hit with great force against the metal. A contact at a velocity of dozens of km/h ends with a crack of the magnet. Wear safety glasses when playing with large magnets.

Table 9: Corrosion resistance
MW 38x12 / 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 (Pc)
MW 38x12 / N38

Parameter Value SI Unit / Description
Magnetic Flux 40 045 Mx 400.5 µWb
Pc Coefficient 0.42 Low (Flat)
Total magnetic flux passing through the magnet pole. Key data for generator designers and motors. Pc value determines the working geometry.

Table 11: Hydrostatics and buoyancy
MW 38x12 / N38

Environment Effective steel pull Effect
Air (land) 32.79 kg Standard
Water (riverbed) 37.54 kg
(+4.75 kg buoyancy gain)
+14.5%
Warning: Remember to wipe the magnet thoroughly after removing it from water and apply a protective layer (e.g., oil) to avoid corrosion.
In water, the magnet feels stronger thanks to Archimedes' principle. Buoyancy helps in lifting finds.

1. Sliding resistance

*Warning: On a vertical wall, the magnet retains only a fraction of its nominal pull.

2. Plate thickness effect

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

3. Temperature resistance

*For N38 grade, the max working temp is 80°C.

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.42

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 specification and ecology

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%

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: 010060-2026
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The presented product is an extremely powerful rod magnet, manufactured from advanced NdFeB material, which, with dimensions of Ø38x12 mm, guarantees optimal power. 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. 32.79 kg), this product is in stock from our European logistics center, ensuring quick order fulfillment. Furthermore, its triple-layer Ni-Cu-Ni coating effectively protects it against corrosion in typical operating conditions, guaranteeing an aesthetic appearance and durability for years.
This model is ideal for building generators, advanced Hall effect sensors, and efficient filters, where field concentration on a small surface counts. Thanks to the pull force of 321.71 N with a weight of only 102.07 g, this rod is indispensable in miniature devices and wherever every gram matters.
Since our magnets have a very precise dimensions, the recommended way is to glue them into holes with a slightly larger diameter (e.g., 38.1 mm) using epoxy glues. To ensure stability in automation, anaerobic resins are used, which are safe for nickel and fill the gap, guaranteeing durability of the connection.
Grade N38 is the most frequently chosen standard for professional neodymium magnets, offering a great economic balance and operational stability. If you need the strongest magnets in the same volume (Ø38x12), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our warehouse.
The presented product is a neodymium magnet with precisely defined parameters: diameter 38 mm and height 12 mm. The value of 321.71 N means that the magnet is capable of holding a weight many times exceeding its own mass of 102.07 g. The product has a [NiCuNi] coating, which protects the surface against oxidation, giving it an aesthetic, silvery shine.
This cylinder is magnetized axially (along the height of 12 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.

Strengths as well as weaknesses of neodymium magnets.

Strengths

Besides their magnetic performance, neodymium magnets are valued for these benefits:
  • They have unchanged lifting capacity, and over nearly 10 years their performance decreases symbolically – ~1% (according to theory),
  • They have excellent resistance to magnetic field loss as a result of opposing magnetic fields,
  • In other words, due to the reflective finish of gold, the element looks attractive,
  • Neodymium magnets ensure maximum magnetic induction on a small surface, which ensures high operational effectiveness,
  • Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
  • Possibility of accurate forming and optimizing to defined requirements,
  • Huge importance in high-tech industry – they are used in data components, electromotive mechanisms, medical equipment, as well as technologically advanced constructions.
  • Thanks to efficiency per cm³, small magnets offer high operating force, occupying minimum space,

Disadvantages

Cons of neodymium magnets: tips and applications.
  • To avoid cracks under impact, we suggest using special steel holders. Such a solution protects the magnet and simultaneously improves its durability.
  • Neodymium magnets decrease their force under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
  • Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material stable to moisture, in case of application outdoors
  • We recommend a housing - magnetic mechanism, due to difficulties in creating nuts inside the magnet and complex forms.
  • Potential hazard to health – tiny shards of magnets can be dangerous, if swallowed, which is particularly important in the aspect of protecting the youngest. It is also worth noting that tiny parts of these devices are able to disrupt the diagnostic process medical in case of swallowing.
  • Due to neodymium price, their price is higher than average,

Pull force analysis

Detachment force of the magnet in optimal conditions – what it depends on?

Information about lifting capacity is the result of a measurement for ideal contact conditions, including:
  • on a block made of mild steel, optimally conducting the magnetic field
  • possessing a thickness of at least 10 mm to ensure full flux closure
  • with a surface free of scratches
  • without the slightest insulating layer between the magnet and steel
  • under vertical force vector (90-degree angle)
  • in temp. approx. 20°C

Key elements affecting lifting force

In practice, the real power results from several key aspects, presented from crucial:
  • Clearance – the presence of foreign body (paint, tape, air) interrupts the magnetic circuit, which reduces capacity steeply (even by 50% at 0.5 mm).
  • Pull-off angle – note that the magnet holds strongest perpendicularly. Under shear forces, the holding force drops drastically, often to levels of 20-30% of the nominal value.
  • Wall thickness – thin material does not allow full use of the magnet. Magnetic flux penetrates through instead of generating force.
  • Steel grade – the best choice is high-permeability steel. Hardened steels may have worse magnetic properties.
  • Surface finish – ideal contact is possible only on polished steel. Rough texture create air cushions, reducing force.
  • Operating temperature – neodymium magnets have a negative temperature coefficient. At higher temperatures they lose power, and in frost they can be stronger (up to a certain limit).

Lifting capacity was measured with the use of a polished steel plate of suitable thickness (min. 20 mm), under vertically applied force, however under parallel forces the lifting capacity is smaller. Additionally, even a slight gap between the magnet and the plate reduces the holding force.

Warnings
Do not drill into magnets

Combustion risk: Neodymium dust is explosive. Do not process magnets without safety gear as this may cause fire.

Do not underestimate power

Before starting, read the rules. Uncontrolled attraction can destroy the magnet or hurt your hand. Think ahead.

Electronic hazard

Avoid bringing magnets near a wallet, laptop, or TV. The magnetic field can irreversibly ruin these devices and erase data from cards.

Do not give to children

Only for adults. Small elements pose a choking risk, causing intestinal necrosis. Keep out of reach of kids and pets.

Health Danger

Life threat: Neodymium magnets can turn off pacemakers and defibrillators. Do not approach if you have electronic implants.

Shattering risk

NdFeB magnets are sintered ceramics, which means they are prone to chipping. Impact of two magnets will cause them shattering into shards.

Metal Allergy

Nickel alert: The nickel-copper-nickel coating contains nickel. If redness appears, immediately stop handling magnets and use protective gear.

Impact on smartphones

A powerful magnetic field interferes with the operation of magnetometers in phones and navigation systems. Keep magnets close to a device to avoid breaking the sensors.

Permanent damage

Watch the temperature. Exposing the magnet to high heat will ruin its properties and strength.

Hand protection

Pinching hazard: The pulling power is so immense that it can cause blood blisters, crushing, and broken bones. Use thick gloves.

Warning! Details about hazards in the article: Safety of working with magnets.