← previous
next →
Product available Ships today (order by 14:00)

MW 12x4 / N52 - cylindrical magnet

cylindrical magnet

Catalog no 010500

GTIN/EAN: 5906301814962

5.00

Diameter Ø

12 mm [±0,1 mm]

Height

4 mm [±0,1 mm]

Weight

3.39 g

Magnetization Direction

↑ axial

Load capacity

4.68 kg / 45.89 N

Magnetic Induction

400.45 mT / 4005 Gs

Coating

[NiCuNi] Nickel

technical specifications »

2.18 ZŁ with VAT / pcs + price for transport

1.770 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?
price from 1 pcs
1.770 ZŁ
2.18 ZŁ
price from 350 pcs
1.664 ZŁ
2.05 ZŁ
price from 1450 pcs
1.558 ZŁ
1.916 ZŁ
Carbon Footprint – environmental impact GPSR Regulation – product safety
Need advice?

Pick up the phone and ask +48 22 499 98 98 alternatively send us a note using inquiry form our website.
Lifting power as well as structure of magnetic components can be checked on our online calculation tool.

Orders placed before 14:00 will be shipped the same business day.

Technical specification - MW 12x4 / N52 - cylindrical magnet

Specification / characteristics - MW 12x4 / N52 - cylindrical magnet

properties
properties values
Cat. no. 010500
GTIN/EAN 5906301814962
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 4 mm [±0,1 mm]
Weight 3.39 g
Magnetization Direction ↑ axial
Load capacity ~ ? 4.68 kg / 45.89 N
Magnetic Induction ~ ? 400.45 mT / 4005 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N52

Specification / characteristics MW 12x4 / N52 - cylindrical magnet
properties values units
remenance Br [min. - max.] ? 14.2-14.7 kGs
remenance Br [min. - max.] ? 1420-1470 mT
coercivity bHc ? 10.8-12.5 kOe
coercivity bHc ? 860-995 kA/m
actual internal force iHc ≥ 12 kOe
actual internal force iHc ≥ 955 kA/m
energy density [min. - max.] ? 48-53 BH max MGOe
energy density [min. - max.] ? 380-422 BH max KJ/m
max. temperature ? ≤ 80 °C

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C
properties values units
Vickers hardness ≥550 Hv
Density ≥7.4 g/cm3
Curie Temperature TC 312 - 380 °C
Curie Temperature TF 593 - 716 °F
Specific resistance 150 μΩ⋅cm
Bending strength 250 MPa
Compressive strength 1000~1100 MPa
Thermal expansion parallel (∥) to orientation (M) (3-4) x 10-6 °C-1
Thermal expansion perpendicular (⊥) to orientation (M) -(1-3) x 10-6 °C-1
Young's modulus 1.7 x 104 kg/mm²

Technical modeling of the assembly - data

These data constitute the result of a engineering calculation. Values were calculated on algorithms for the material Nd2Fe14B. Real-world parameters may differ. Please consider these data as a reference point during assembly planning.

Table 1: Static force (pull vs gap) - power drop
MW 12x4 / N52

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 4003 Gs
400.3 mT
 4.68 kg / 10.32 pounds
4680.0 g / 45.9 N
 medium risk
1 mm 3438 Gs
343.8 mT
 3.45 kg / 7.61 pounds
3451.9 g / 33.9 N
 medium risk
2 mm 2824 Gs
282.4 mT
 2.33 kg / 5.14 pounds
2329.8 g / 22.9 N
 medium risk
3 mm 2255 Gs
225.5 mT
 1.48 kg / 3.27 pounds
1484.8 g / 14.6 N
 weak grip
5 mm 1386 Gs
138.6 mT
 0.56 kg / 1.24 pounds
561.3 g / 5.5 N
 weak grip
10 mm 445 Gs
44.5 mT
 0.06 kg / 0.13 pounds
58.0 g / 0.6 N
 weak grip
15 mm 181 Gs
18.1 mT
 0.01 kg / 0.02 pounds
9.6 g / 0.1 N
 weak grip
20 mm 89 Gs
8.9 mT
 0.00 kg / 0.01 pounds
2.3 g / 0.0 N
 weak grip
30 mm 30 Gs
3.0 mT
 0.00 kg / 0.00 pounds
0.3 g / 0.0 N
 weak grip
50 mm 7 Gs
0.7 mT
 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
 weak grip
Pulling power decreases significantly with every subsequent millimeter of distance. Remember that even a very thin break (e.g., dirt, paint, rust) significantly diminishes the holding power. Neodymiums hold strongest at the point of direct contact; air break nullifies the power. See how quickly the parameters drop, when the product does not adhere flatly to the steel surface. When designing the mounting, discard unnecessary gaps.

Table 2: Slippage force (wall)
MW 12x4 / N52

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.94 kg / 2.06 pounds
936.0 g / 9.2 N
1 mm Stal (~0.2) 0.69 kg / 1.52 pounds
690.0 g / 6.8 N
2 mm Stal (~0.2) 0.47 kg / 1.03 pounds
466.0 g / 4.6 N
3 mm Stal (~0.2) 0.30 kg / 0.65 pounds
296.0 g / 2.9 N
5 mm Stal (~0.2) 0.11 kg / 0.25 pounds
112.0 g / 1.1 N
10 mm Stal (~0.2) 0.01 kg / 0.03 pounds
12.0 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 indicates the estimated weight limit necessary to initiate the shifting of the magnet downwards along a vertical steel plate (assuming typical friction coefficient). This parameter varies with the air gap between the magnet and the surface.

Table 3: Wall mounting (shearing) - vertical pull
MW 12x4 / N52

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
1.40 kg / 3.10 pounds
1404.0 g / 13.8 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.94 kg / 2.06 pounds
936.0 g / 9.2 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.47 kg / 1.03 pounds
468.0 g / 4.6 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
2.34 kg / 5.16 pounds
2340.0 g / 23.0 N
When hanging a holder on a upright plane (e.g., a fridge), it will maintain barely approx. 1/5 of its maximum pull force. Gravitational force as well as a weak degree of grip influence the fact that holders move down faster than they pop off the substrate. Planning a wall mount? Remember that the sliding force is significantly lower than the maximum static pull force. On a smooth steel, the magnet will slip down under a noticeably lighter cargo. Application of an anti-slip coating can effectively improve the result.

Table 4: Material efficiency (saturation) - sheet metal selection
MW 12x4 / N52

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.47 kg / 1.03 pounds
468.0 g / 4.6 N
1 mm
25%
 1.17 kg / 2.58 pounds
1170.0 g / 11.5 N
2 mm
50%
 2.34 kg / 5.16 pounds
2340.0 g / 23.0 N
3 mm
75%
 3.51 kg / 7.74 pounds
3510.0 g / 34.4 N
5 mm
100%
 4.68 kg / 10.32 pounds
4680.0 g / 45.9 N
10 mm
100%
 4.68 kg / 10.32 pounds
4680.0 g / 45.9 N
11 mm
100%
 4.68 kg / 10.32 pounds
4680.0 g / 45.9 N
12 mm
100%
 4.68 kg / 10.32 pounds
4680.0 g / 45.9 N
A too thin steel is unable to conduct the entire magnetic field, which squanders power of the magnet. Should you install a neodymium to a too thin substrate, the magnetism will penetrate right through and the attraction force will be weaker. To achieve the maximum of this neodymium's potential, you require a sufficiently solid element of metal. The saturation effect means that on sheet metal structures (e.g., thin profiles), the magnet works worse. We recommend selecting the steel thickness from these parameters.

Table 5: Working in heat (material behavior) - thermal limit
MW 12x4 / N52

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 4.68 kg / 10.32 pounds
4680.0 g / 45.9 N
 OK
40 °C -2.2% 4.58 kg / 10.09 pounds
4577.0 g / 44.9 N
 OK
60 °C -4.4% 4.47 kg / 9.86 pounds
4474.1 g / 43.9 N
80 °C -6.6% 4.37 kg / 9.64 pounds
4371.1 g / 42.9 N
100 °C -28.8% 3.33 kg / 7.35 pounds
3332.2 g / 32.7 N
Classic neodymiums irreversibly lose power above the temperature limit. Avoid high temperatures – excessive heat can irreversibly damage this magnet. With increasing heat, the magnet's capacity temporarily decreases. Do not use this product close to ovens exceeding its safe range. Exceeding the critical threshold will result in permanent loss of magnetic properties.
*Important note: Thermal stability depends not only on the material grade, as well as the dimension ratios. Thin magnets (low permeance coefficient) are more susceptible to demagnetization under lower heat stress than long magnets. Warning indicator in the table signals permanent field degradation for this specific geometry.

Table 6: Two magnets (attraction) - forces in the system
MW 12x4 / N52

Gap (mm) Attraction (kg/lbs) (N-S) Shear Strength (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 11.17 kg / 24.63 pounds
5 771 Gs
1.68 kg / 3.69 pounds
1676 g / 16.4 N
 N/A
1 mm 9.73 kg / 21.44 pounds
7 470 Gs
1.46 kg / 3.22 pounds
1459 g / 14.3 N
 8.75 kg / 19.30 pounds
~0 Gs
2 mm 8.24 kg / 18.16 pounds
6 875 Gs
1.24 kg / 2.72 pounds
1236 g / 12.1 N
 7.42 kg / 16.35 pounds
~0 Gs
3 mm 6.83 kg / 15.06 pounds
6 260 Gs
1.02 kg / 2.26 pounds
1024 g / 10.1 N
 6.15 kg / 13.55 pounds
~0 Gs
5 mm 4.46 kg / 9.84 pounds
5 060 Gs
0.67 kg / 1.48 pounds
670 g / 6.6 N
 4.02 kg / 8.86 pounds
~0 Gs
10 mm 1.34 kg / 2.95 pounds
2 772 Gs
0.20 kg / 0.44 pounds
201 g / 2.0 N
 1.21 kg / 2.66 pounds
~0 Gs
20 mm 0.14 kg / 0.30 pounds
891 Gs
0.02 kg / 0.05 pounds
21 g / 0.2 N
 0.12 kg / 0.27 pounds
~0 Gs
50 mm 0.00 kg / 0.00 pounds
99 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
 0.00 kg / 0.00 pounds
~0 Gs
60 mm 0.00 kg / 0.00 pounds
61 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
 0.00 kg / 0.00 pounds
~0 Gs
70 mm 0.00 kg / 0.00 pounds
40 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
 0.00 kg / 0.00 pounds
~0 Gs
80 mm 0.00 kg / 0.00 pounds
27 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
20 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
15 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
 0.00 kg / 0.00 pounds
~0 Gs
Two strong neodymiums attract each other from a wider radius than a magnet and steel setup. Such a system of magnet-to-magnet creates a more powerful interaction and a wider radius of operation. Designing a strong closure? Apply two magnets instead of one magnet and a steel. Be careful that when attracting two neodymiums, the pinch force is massive. The levitation is marginally weaker than the attraction, but still significant.
*Flux density in repulsion mode is approximately ~0 Gs at the geometric center of the gap (due to field cancellation).
Attention: Calculations refer to friction force of a pair of same neodymium magnets (friction ~0.15 for Ni-Ni coating).

Table 7: Hazards (implants) - warnings
MW 12x4 / N52

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 6.0 cm
Hearing aid 10 Gs (1.0 mT) 4.5 cm
Mechanical watch 20 Gs (2.0 mT) 3.5 cm
Phone / Smartphone 40 Gs (4.0 mT) 3.0 cm
Car key 50 Gs (5.0 mT) 2.5 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 electronics and medical implants. These magnets produce a field that prevents correct functioning of sensitive medical devices. Be aware: the unseen radiation penetrates the body and plastic. Exceptional care must be taken by people with hearing aids and insulin pumps. The risk also applies to: mechanical watches, car keys, membranes, and screens. Do not bring the product near payment cards, HDD media, or precise measuring instruments.

Table 8: Collisions (kinetic energy) - collision effects
MW 12x4 / N52

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 37.76 km/h
(10.49 m/s)
 0.19 J
30 mm 64.91 km/h
(18.03 m/s)
 0.55 J
50 mm 83.79 km/h
(23.27 m/s)
 0.92 J
100 mm 118.50 km/h
(32.92 m/s)
 1.84 J
Magnetic elements are very brittle – a violent impact against metal risks their cracking. Pay attention to connection velocity – a magnet released freely speeds with massive force. Striking energy can destroy the magnet or painful pinches to skin. Hold the magnet firmly during installation so it doesn't hit with great force against the steel surface. A collision at high speed ends with a crack of the neodymium. Wear eye protection when playing with powerful specimens.

Table 9: Anti-corrosion coating durability
MW 12x4 / N52

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. Note the thickness of the protective layer.

Table 10: Construction data (Pc)
MW 12x4 / N52

Parameter Value SI Unit / Description
Magnetic Flux 4 794 Mx 47.9 µWb
Pc Coefficient 0.44 Low (Flat)
Flux value emitted by the pole surface. Essential parameter for generator designers as well as sensors. Pc value defines the working geometry.

Table 11: Submerged application
MW 12x4 / N52

Environment Effective steel pull Effect
Air (land) 4.68 kg Standard
Water (riverbed) 5.36 kg
(+0.68 kg buoyancy gain)
+14.5%
Warning: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.
Water displaces steel, making heavy objects slightly lighter. Buoyancy helps in lifting finds.
1. Shear force

*Note: On a vertical wall, the magnet retains only approx. 20-30% of its max power.

2. Steel thickness impact

*Thin metal sheet (e.g. 0.5mm PC case) drastically reduces the holding force.

3. Power loss vs temp

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

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.44

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
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: 010500-2026
Measurement Calculator
Pulling force
Field Strength
Put your value in just one slot to see the conversion for all other fields immediately.

Other deals

UMGW 16x13x5 [M4] GW / N38 - magnetic holder internal thread
Product available Ships today (order by 14:00)

UMGW 16x13x5 [M4] GW / N38 - magnetic holder internal thread

3.80 ZŁ brutto / pcs
MPL 10x10x3 / N38 - lamellar magnet
Product available Ships today (order by 14:00)

MPL 10x10x3 / N38 - lamellar magnet

1.414 ZŁ brutto / pcs
MPL 30x10x5 / N38 - lamellar magnet
Product available Ships today (order by 14:00)

MPL 30x10x5 / N38 - lamellar magnet

4.26 ZŁ brutto / pcs
BM 550x180x70 [4x M8] - magnetic beam
Product available Ships today (order by 14:00)

BM 550x180x70 [4x M8] - magnetic beam

5708.18 ZŁ brutto / pcs
The presented product is an incredibly powerful cylinder magnet, made from modern NdFeB material, which, with dimensions of Ø12x4 mm, guarantees optimal power. The MW 12x4 / N52 model is characterized by an accuracy of ±0.1mm and industrial build quality, making it an excellent solution for the most demanding engineers and designers. As a magnetic rod with significant force (approx. 4.68 kg), this product is available off-the-shelf from our warehouse in Poland, ensuring rapid order fulfillment. Moreover, its triple-layer Ni-Cu-Ni coating shields it against corrosion in standard operating conditions, guaranteeing an aesthetic appearance and durability for years.
This model is ideal for building generators, advanced sensors, and efficient magnetic separators, where field concentration on a small surface counts. Thanks to the pull force of 45.89 N with a weight of only 3.39 g, this cylindrical magnet is indispensable in electronics and wherever every gram matters.
Since our magnets have a tolerance of ±0.1mm, the recommended way is to glue them into holes with a slightly larger diameter (e.g., 12.1 mm) using two-component epoxy glues. To ensure stability in industry, specialized industrial adhesives are used, which are safe for nickel and fill the gap, guaranteeing durability of the connection.
Magnets N38 are suitable for the majority of applications in automation and machine building, where extreme miniaturization with maximum force is not required. If you need even stronger magnets in the same volume (Ø12x4), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our store.
This model is characterized by dimensions Ø12x4 mm, which, at a weight of 3.39 g, makes it an element with impressive magnetic energy density. The value of 45.89 N means that the magnet is capable of holding a weight many times exceeding its own mass of 3.39 g. The product has a [NiCuNi] coating, which protects the surface against external factors, giving it an aesthetic, silvery shine.
Standardly, the magnetic axis runs through the center of the cylinder, causing the greatest attraction force to occur on the bases with a diameter of 12 mm. Thanks to this, the magnet can be easily glued into a hole and achieve a strong field on the front surface. On request, we can also produce versions magnetized through the diameter if your project requires it.

Strengths and weaknesses of neodymium magnets.

Strengths

Besides their immense magnetic power, neodymium magnets offer the following advantages:
  • They retain magnetic properties for around 10 years – the loss is just ~1% (based on simulations),
  • They show high resistance to demagnetization induced by external magnetic fields,
  • Thanks to the glossy finish, the plating of nickel, gold-plated, or silver-plated gives an clean appearance,
  • Neodymium magnets generate maximum magnetic induction on a small surface, which allows for strong attraction,
  • Due to their durability and thermal resistance, neodymium magnets can operate (depending on the shape) even at high temperatures reaching 230°C or more...
  • Thanks to modularity in constructing and the capacity to adapt to complex applications,
  • Universal use in innovative solutions – they are utilized in mass storage devices, motor assemblies, medical equipment, and modern systems.
  • Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Weaknesses

Drawbacks and weaknesses of neodymium magnets: tips and applications.
  • At strong impacts they can break, therefore we recommend placing them in steel cases. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
  • We warn that neodymium magnets can reduce their strength at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
  • Magnets exposed to a humid environment can rust. Therefore during using outdoors, we recommend using water-impermeable magnets made of rubber, plastic or other material resistant to moisture
  • We recommend a housing - magnetic mount, due to difficulties in realizing threads inside the magnet and complex shapes.
  • Health risk related to microscopic parts of magnets pose a threat, when accidentally swallowed, which gains importance in the context of child health protection. Furthermore, small components of these magnets are able to complicate diagnosis medical when they are in the body.
  • With mass production the cost of neodymium magnets can be a barrier,

Holding force characteristics

Breakaway strength of the magnet in ideal conditions – what contributes to it?

Magnet power is the result of a measurement for optimal configuration, assuming:
  • with the application of a yoke made of special test steel, ensuring full magnetic saturation
  • possessing a thickness of at least 10 mm to avoid saturation
  • with an ideally smooth touching surface
  • under conditions of no distance (metal-to-metal)
  • under axial force vector (90-degree angle)
  • in temp. approx. 20°C

Impact of factors on magnetic holding capacity in practice

Effective lifting capacity impacted by working environment parameters, including (from priority):
  • Distance (betwixt the magnet and the metal), as even a tiny clearance (e.g. 0.5 mm) results in a drastic drop in lifting capacity by up to 50% (this also applies to paint, rust or debris).
  • Pull-off angle – remember that the magnet has greatest strength perpendicularly. Under shear forces, the capacity drops significantly, often to levels of 20-30% of the nominal value.
  • Steel thickness – insufficiently thick sheet does not accept the full field, causing part of the flux to be wasted to the other side.
  • Material composition – different alloys attracts identically. Alloy additives worsen the interaction with the magnet.
  • Surface condition – ground elements ensure maximum contact, which improves force. Uneven metal reduce efficiency.
  • Temperature – heating the magnet causes a temporary drop of force. It is worth remembering the maximum operating temperature for a given model.

Lifting capacity was determined with the use of a polished steel plate of optimal thickness (min. 20 mm), under perpendicular detachment force, however under shearing force the lifting capacity is smaller. In addition, even a small distance between the magnet’s surface and the plate decreases the load capacity.

Safe handling of neodymium magnets
Flammability

Powder produced during cutting of magnets is flammable. Avoid drilling into magnets unless you are an expert.

Data carriers

Avoid bringing magnets near a wallet, computer, or screen. The magnetism can permanently damage these devices and wipe information from cards.

Impact on smartphones

An intense magnetic field interferes with the functioning of compasses in phones and navigation systems. Do not bring magnets close to a device to prevent damaging the sensors.

Warning for heart patients

Warning for patients: Strong magnetic fields disrupt electronics. Maintain minimum 30 cm distance or request help to work with the magnets.

Material brittleness

Despite the nickel coating, neodymium is brittle and not impact-resistant. Avoid impacts, as the magnet may crumble into hazardous fragments.

Serious injuries

Large magnets can crush fingers in a fraction of a second. Never put your hand betwixt two attracting surfaces.

No play value

Neodymium magnets are not intended for children. Swallowing several magnets may result in them connecting inside the digestive tract, which constitutes a direct threat to life and necessitates immediate surgery.

Powerful field

Use magnets with awareness. Their powerful strength can surprise even experienced users. Stay alert and respect their power.

Skin irritation risks

Some people have a sensitization to Ni, which is the standard coating for neodymium magnets. Frequent touching can result in a rash. We strongly advise use safety gloves.

Maximum temperature

Regular neodymium magnets (N-type) undergo demagnetization when the temperature exceeds 80°C. The loss of strength is permanent.

Safety First! Learn more about hazards in the article: Safety of working with magnets.