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MW 8x8 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010106

GTIN/EAN: 5906301811053

5.00
Load capacity 2.03 kg / 19.92 N Magnetic Induction 553.67 mT / 5537 Gs
Diameter Ø
8 mm [±0,1 mm]
Height
8 mm [±0,1 mm]
Weight
3.02 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

see technical specifications »

1.090 zł net / pcs

1.341 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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Technical - MW 8x8 / N38 - cylindrical magnet

Specification / characteristics - MW 8x8 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010106
GTIN/EAN 5906301811053
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 8 mm [±0,1 mm]
Height 8 mm [±0,1 mm]
Weight 3.02 g
Magnetization Direction ↑ axial
Load capacity ~ ? 2.03 kg / 19.92 N
Magnetic Induction ~ ? 553.67 mT / 5537 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 8x8 / 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

Technical analysis of the magnet - data

These values are the result of a physical analysis. Results are based on algorithms for the material Nd2Fe14B. Actual conditions may differ from theoretical values. Please consider these calculations as a preliminary roadmap for designers.

Table 1: Static force (force vs gap) - interaction chart
MW 8x8 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 5531 Gs
553.1 mT
 2.03 kg / 4.48 lbs
2030.0 g / 19.9 N
 strong
1 mm 4162 Gs
416.2 mT
 1.15 kg / 2.53 lbs
1149.3 g / 11.3 N
 weak grip
2 mm 2984 Gs
298.4 mT
 0.59 kg / 1.30 lbs
590.7 g / 5.8 N
 weak grip
3 mm 2107 Gs
210.7 mT
 0.29 kg / 0.65 lbs
294.5 g / 2.9 N
 weak grip
5 mm 1084 Gs
108.4 mT
 0.08 kg / 0.17 lbs
78.0 g / 0.8 N
 weak grip
10 mm 296 Gs
29.6 mT
 0.01 kg / 0.01 lbs
5.8 g / 0.1 N
 weak grip
15 mm 118 Gs
11.8 mT
 0.00 kg / 0.00 lbs
0.9 g / 0.0 N
 weak grip
20 mm 58 Gs
5.8 mT
 0.00 kg / 0.00 lbs
0.2 g / 0.0 N
 weak grip
30 mm 20 Gs
2.0 mT
 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
 weak grip
50 mm 5 Gs
0.5 mT
 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
 weak grip
Pulling power drops drastically with every mm of distance. Note that every additional insulation layer (e.g., contamination, paint, dust) strongly diminishes the holding power. Magnets work optimally at the point of direct contact; gap kills the force. See how rapidly the parameters plummet, when the magnet does not adhere directly to the steel surface. When designing the arrangement, avoid unnecessary gaps.

Table 2: Vertical force (wall)
MW 8x8 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.41 kg / 0.90 lbs
406.0 g / 4.0 N
1 mm Stal (~0.2) 0.23 kg / 0.51 lbs
230.0 g / 2.3 N
2 mm Stal (~0.2) 0.12 kg / 0.26 lbs
118.0 g / 1.2 N
3 mm Stal (~0.2) 0.06 kg / 0.13 lbs
58.0 g / 0.6 N
5 mm Stal (~0.2) 0.02 kg / 0.04 lbs
16.0 g / 0.2 N
10 mm Stal (~0.2) 0.00 kg / 0.00 lbs
2.0 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
This section shows the theoretical holding capacity sufficient to start the shifting of the magnet vertically along a vertical metal surface (considering typical friction coefficient). This parameter varies with the separation distance between the magnet and the metal.

Table 3: Vertical assembly (shearing) - vertical pull
MW 8x8 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.61 kg / 1.34 lbs
609.0 g / 6.0 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.41 kg / 0.90 lbs
406.0 g / 4.0 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.20 kg / 0.45 lbs
203.0 g / 2.0 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
1.02 kg / 2.24 lbs
1015.0 g / 10.0 N
When hanging a magnet on a vertical surface (e.g., a board), it will only hold only approx. 20%-30% of its maximum pull force. Gravitational force as well as a low friction coefficient mean that holders slide down easier than they pop off the substrate. Want to create a vertical fastening? Remember that the sliding force is significantly lower than the perpendicular breakaway force. On a slippery surface, the holder will slip down under a noticeably lighter weight. Utilizing a rubberized pad can significantly increase the grip.

Table 4: Steel thickness (substrate influence) - power losses
MW 8x8 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.20 kg / 0.45 lbs
203.0 g / 2.0 N
1 mm
25%
 0.51 kg / 1.12 lbs
507.5 g / 5.0 N
2 mm
50%
 1.02 kg / 2.24 lbs
1015.0 g / 10.0 N
3 mm
75%
 1.52 kg / 3.36 lbs
1522.5 g / 14.9 N
5 mm
100%
 2.03 kg / 4.48 lbs
2030.0 g / 19.9 N
10 mm
100%
 2.03 kg / 4.48 lbs
2030.0 g / 19.9 N
11 mm
100%
 2.03 kg / 4.48 lbs
2030.0 g / 19.9 N
12 mm
100%
 2.03 kg / 4.48 lbs
2030.0 g / 19.9 N
A too thin steel is not enough to conduct the entire magnetic field, which squanders power of the magnet. Should you mount a strong magnet to a too thin substrate, the magnetism will pass right through and the attraction force will be weaker. To utilize full efficiency of this magnet's potential, you need a suitably thick piece of steel. The material oversaturation causes that on delicate walls (e.g., appliance housings), the magnet shows lower pull force. We recommend selecting the steel thickness from these parameters.

Table 5: Thermal resistance (stability) - power drop
MW 8x8 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 2.03 kg / 4.48 lbs
2030.0 g / 19.9 N
 OK
40 °C -2.2% 1.99 kg / 4.38 lbs
1985.3 g / 19.5 N
 OK
60 °C -4.4% 1.94 kg / 4.28 lbs
1940.7 g / 19.0 N
 OK
80 °C -6.6% 1.90 kg / 4.18 lbs
1896.0 g / 18.6 N
100 °C -28.8% 1.45 kg / 3.19 lbs
1445.4 g / 14.2 N
Classic neodymiums irreversibly lose strength after exceeding the maximum temperature. Watch out for overheating – heat can permanently damage this magnet. As the temperature rises, the magnet's force momentarily decreases. Do not use this magnet close to ovens higher than its working range. Ignoring the limit will lead to destruction of magnetic properties.
*Engineering note: Temperature resistance is determined by both grade, but also on the magnet's shape. Low-profile magnets (pancake types) are more susceptible to demagnetization at lower temperatures than taller cylinders. Red status in the table points to permanent field degradation for this particular item.

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MW 8x8 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 9.48 kg / 20.90 lbs
6 000 Gs
1.42 kg / 3.14 lbs
1422 g / 14.0 N
 N/A
1 mm 7.26 kg / 16.01 lbs
9 682 Gs
1.09 kg / 2.40 lbs
1089 g / 10.7 N
 6.54 kg / 14.41 lbs
~0 Gs
2 mm 5.37 kg / 11.83 lbs
8 324 Gs
0.81 kg / 1.78 lbs
805 g / 7.9 N
 4.83 kg / 10.65 lbs
~0 Gs
3 mm 3.88 kg / 8.55 lbs
7 074 Gs
0.58 kg / 1.28 lbs
582 g / 5.7 N
 3.49 kg / 7.69 lbs
~0 Gs
5 mm 1.95 kg / 4.30 lbs
5 016 Gs
0.29 kg / 0.64 lbs
292 g / 2.9 N
 1.75 kg / 3.87 lbs
~0 Gs
10 mm 0.36 kg / 0.80 lbs
2 169 Gs
0.05 kg / 0.12 lbs
55 g / 0.5 N
 0.33 kg / 0.72 lbs
~0 Gs
20 mm 0.03 kg / 0.06 lbs
592 Gs
0.00 kg / 0.01 lbs
4 g / 0.0 N
 0.02 kg / 0.05 lbs
~0 Gs
50 mm 0.00 kg / 0.00 lbs
66 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
41 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
27 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
19 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
14 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
10 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
Two strong neodymiums attract each other from a wider radius than a magnet and sheet combination. Such a system of two magnets produces a massive flux and a wider radius of action. Planning to create a powerful holder? Use a pair of magnets instead of one magnet and a striker plate. Remember that when connecting a pair of magnets, the collision energy is massive. The repulsion force is a bit weaker than the attraction, but still significant.
*Flux density between like poles is approximately ~0 Gs at the midpoint between the magnets (caused by magnetic field nullification).
Note: Results show friction force of two matching magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Safety (HSE) (implants) - warnings
MW 8x8 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 5.5 cm
Hearing aid 10 Gs (1.0 mT) 4.0 cm
Timepiece 20 Gs (2.0 mT) 3.5 cm
Mobile device 40 Gs (4.0 mT) 2.5 cm
Remote 50 Gs (5.0 mT) 2.5 cm
Payment card 400 Gs (40.0 mT) 1.0 cm
HDD hard drive 600 Gs (60.0 mT) 1.0 cm
Powerful magnet radiation is a large risk to electronic devices as well as pacemakers. These neodymiums generate a flux that disrupts operation of sensitive medical devices. Remember: the unseen radiation penetrates the body and housings. Exceptional care must be exercised by people with cochlear implants and insulin pumps. The risk also applies to: automatic timepieces, car keys, membranes, and screens. Avoid contact with magnetic cards, HDD media, or precise measuring instruments.

Table 8: Dynamics (kinetic energy) - collision effects
MW 8x8 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 16.64 km/h
(4.62 m/s)
 0.03 J
30 mm 16.68 km/h
(4.63 m/s)
 0.03 J
50 mm 16.68 km/h
(4.63 m/s)
 0.03 J
100 mm 16.68 km/h
(4.63 m/s)
 0.03 J
Neodymium magnets are delicate – a violent impact against metal causes immediate chipping. Control the attraction moment – a magnet released freely turns into a projectile. Impact energy can cause material chips or painful pinches to fingers. Be sure to control the product during mounting so it doesn't hit violently against the steel surface. A collision at high speed means shattering of the neodymium. Wear eye protection when working with large magnets.

Table 9: Surface protection spec
MW 8x8 / 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 following table defines the conditions under which this product can be safely used. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Electrical data (Flux)
MW 8x8 / N38

Parameter Value SI Unit / Description
Magnetic Flux 2 868 Mx 28.7 µWb
Pc Coefficient 0.89 High (Stable)
Total magnetic flux passing through the magnet pole. Essential parameter when building generators and motors. The Pc coefficient defines the working geometry.

Table 11: Submerged application
MW 8x8 / N38

Environment Effective steel pull Effect
Air (land) 2.03 kg Standard
Water (riverbed) 2.32 kg
(+0.29 kg buoyancy gain)
+14.5%
Rust risk: 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. However, remember the water resistance when pulling the rope quickly.

1. Shear force

*Warning: On a vertical surface, the magnet holds just a fraction of its max power.

2. Steel thickness impact

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

3. Heat tolerance

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

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.89

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.

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%

Ecology and recycling (GPSR)

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: 010106-2026
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The presented product is an incredibly powerful rod magnet, made from advanced NdFeB material, which, at dimensions of Ø8x8 mm, guarantees optimal power. The MW 8x8 / N38 component boasts high dimensional repeatability and professional build quality, making it an excellent solution for the most demanding engineers and designers. As a cylindrical magnet with impressive force (approx. 2.03 kg), this product is available off-the-shelf from our European logistics center, ensuring rapid order fulfillment. Additionally, its triple-layer Ni-Cu-Ni coating effectively protects it against corrosion in standard operating conditions, guaranteeing an aesthetic appearance and durability for years.
This model is perfect for building electric motors, advanced Hall effect sensors, and efficient filters, where field concentration on a small surface counts. Thanks to the pull force of 19.92 N with a weight of only 3.02 g, this rod is indispensable in miniature devices and wherever every gram matters.
Due to the delicate structure of the ceramic sinter, you must not use force-fitting (so-called press-fit), as this risks immediate cracking of this professional component. To ensure stability in industry, anaerobic resins are used, which are safe for nickel and fill the gap, guaranteeing durability of the connection.
Magnets NdFeB grade N38 are strong enough for the majority of applications in modeling and machine building, where extreme miniaturization with maximum force is not required. If you need the strongest magnets in the same volume (Ø8x8), 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 8 mm and height 8 mm. The key parameter here is the lifting capacity amounting to approximately 2.03 kg (force ~19.92 N), which, with such defined dimensions, proves the high power of the NdFeB material. The product has a [NiCuNi] coating, which secures it against external factors, giving it an aesthetic, silvery shine.
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 8 mm. 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 and cons of rare earth magnets.

Strengths

Besides their high retention, neodymium magnets are valued for these benefits:
  • They have unchanged lifting capacity, and over nearly 10 years their attraction force decreases symbolically – ~1% (according to theory),
  • They are extremely resistant to demagnetization induced by external field influence,
  • The use of an aesthetic layer of noble metals (nickel, gold, silver) causes the element to have aesthetics,
  • They are known for high magnetic induction at the operating surface, which affects their effectiveness,
  • Thanks to resistance to high temperature, they are capable of working (depending on the form) even at temperatures up to 230°C and higher...
  • Considering the possibility of flexible forming and customization to specialized requirements, magnetic components can be created in a wide range of geometric configurations, which expands the range of possible applications,
  • Versatile presence in future technologies – they are used in HDD drives, electric drive systems, diagnostic systems, also modern systems.
  • Thanks to their power density, small magnets offer high operating force, in miniature format,

Cons

Problematic aspects of neodymium magnets and proposals for their use:
  • They are prone to damage upon heavy impacts. To avoid cracks, it is worth securing magnets in a protective case. Such protection not only protects the magnet but also improves its resistance to damage
  • Neodymium magnets lose their power 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
  • When exposed to humidity, magnets start to rust. To use them in conditions outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which prevent oxidation and corrosion.
  • We recommend a housing - magnetic holder, due to difficulties in creating threads inside the magnet and complex shapes.
  • Potential hazard to health – tiny shards of magnets pose a threat, in case of ingestion, which gains importance in the aspect of protecting the youngest. Furthermore, small components of these magnets can disrupt the diagnostic process medical when they are in the body.
  • Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Pull force analysis

Maximum lifting force for a neodymium magnet – what contributes to it?

Breakaway force is the result of a measurement for optimal configuration, assuming:
  • on a plate made of mild steel, effectively closing the magnetic field
  • with a cross-section no less than 10 mm
  • characterized by even structure
  • with total lack of distance (without coatings)
  • for force acting at a right angle (pull-off, not shear)
  • in stable room temperature

What influences lifting capacity in practice

In practice, the actual holding force depends on many variables, presented from the most important:
  • Distance – the presence of foreign body (paint, tape, air) acts as an insulator, which reduces capacity steeply (even by 50% at 0.5 mm).
  • Direction of force – highest force is available only during perpendicular pulling. The shear force of the magnet along the plate is standardly several times smaller (approx. 1/5 of the lifting capacity).
  • Element thickness – for full efficiency, the steel must be adequately massive. Thin sheet restricts the attraction force (the magnet "punches through" it).
  • Metal type – different alloys reacts the same. High carbon content worsen the attraction effect.
  • Surface finish – full contact is obtained only on polished steel. Rough texture create air cushions, reducing force.
  • Temperature – heating the magnet results in weakening of induction. It is worth remembering the thermal limit for a given model.

Lifting capacity was measured using a smooth steel plate of optimal thickness (min. 20 mm), under vertically applied force, whereas under shearing force the lifting capacity is smaller. Moreover, even a small distance between the magnet and the plate decreases the lifting capacity.

Precautions when working with NdFeB magnets
Skin irritation risks

Certain individuals suffer from a contact allergy to Ni, which is the standard coating for NdFeB magnets. Prolonged contact might lead to a rash. We suggest use protective gloves.

Dust explosion hazard

Machining of neodymium magnets poses a fire risk. Neodymium dust reacts violently with oxygen and is difficult to extinguish.

Operating temperature

Monitor thermal conditions. Exposing the magnet to high heat will permanently weaken its properties and pulling force.

Fragile material

NdFeB magnets are sintered ceramics, which means they are very brittle. Impact of two magnets will cause them breaking into shards.

Safe distance

Avoid bringing magnets close to a purse, laptop, or TV. The magnetism can destroy these devices and erase data from cards.

Precision electronics

Navigation devices and mobile phones are extremely susceptible to magnetism. Close proximity with a powerful NdFeB magnet can ruin the internal compass in your phone.

Bone fractures

Mind your fingers. Two large magnets will join immediately with a force of massive weight, crushing anything in their path. Be careful!

Swallowing risk

Only for adults. Tiny parts pose a choking risk, causing serious injuries. Store away from kids and pets.

Immense force

Before use, check safety instructions. Uncontrolled attraction can destroy the magnet or hurt your hand. Think ahead.

ICD Warning

Patients with a pacemaker have to maintain an absolute distance from magnets. The magnetic field can interfere with the functioning of the life-saving device.

Caution! Learn more about risks in the article: Safety of working with magnets.