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MW 4x6 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010078

GTIN/EAN: 5906301810773

5.00
Load capacity 0.41 kg / 4.06 N Magnetic Induction 586.32 mT / 5863 Gs
Diameter Ø
4 mm [±0,1 mm]
Height
6 mm [±0,1 mm]
Weight
0.57 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

product specifications »

0.310 zł net / pcs

0.381 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 4x6 / N38 - cylindrical magnet

Specification / characteristics - MW 4x6 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010078
GTIN/EAN 5906301810773
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 4 mm [±0,1 mm]
Height 6 mm [±0,1 mm]
Weight 0.57 g
Magnetization Direction ↑ axial
Load capacity ~ ? 0.41 kg / 4.06 N
Magnetic Induction ~ ? 586.32 mT / 5863 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 4x6 / 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 magnet - data

The following values represent the outcome of a engineering calculation. Results were calculated on models for the material Nd2Fe14B. Operational conditions might slightly differ from theoretical values. Treat these data as a supplementary guide for designers.

Table 1: Static pull force (force vs distance) - power drop
MW 4x6 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 5852 Gs
585.2 mT
 0.41 kg / 0.90 LBS
410.0 g / 4.0 N
 safe
1 mm 3189 Gs
318.9 mT
 0.12 kg / 0.27 LBS
121.7 g / 1.2 N
 safe
2 mm 1631 Gs
163.1 mT
 0.03 kg / 0.07 LBS
31.8 g / 0.3 N
 safe
3 mm 894 Gs
89.4 mT
 0.01 kg / 0.02 LBS
9.6 g / 0.1 N
 safe
5 mm 343 Gs
34.3 mT
 0.00 kg / 0.00 LBS
1.4 g / 0.0 N
 safe
10 mm 73 Gs
7.3 mT
 0.00 kg / 0.00 LBS
0.1 g / 0.0 N
 safe
15 mm 26 Gs
2.6 mT
 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
 safe
20 mm 13 Gs
1.3 mT
 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
 safe
30 mm 4 Gs
0.4 mT
 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
 safe
50 mm 1 Gs
0.1 mT
 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
 safe
Magnetic force drops drastically per each millimeter of gap. Note that every additional insulation layer (e.g., dirt, varnish, rust) significantly weakens the grip. Magnetic products work most effectively during direct contact; distance weakens the force. Notice how flashily the load capacity plummet, when the magnet does not touch directly to the metal substrate. When designing the arrangement, discard additional spacers.

Table 2: Slippage force (wall)
MW 4x6 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.08 kg / 0.18 LBS
82.0 g / 0.8 N
1 mm Stal (~0.2) 0.02 kg / 0.05 LBS
24.0 g / 0.2 N
2 mm Stal (~0.2) 0.01 kg / 0.01 LBS
6.0 g / 0.1 N
3 mm Stal (~0.2) 0.00 kg / 0.00 LBS
2.0 g / 0.0 N
5 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
10 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
15 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
20 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
30 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
50 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
The following data defines the approximate force sufficient to start the sliding of the magnet vertically against a vertical metal surface (assuming typical friction coefficient). This value is relative to the gap size between the magnet and the surface.

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MW 4x6 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.12 kg / 0.27 LBS
123.0 g / 1.2 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.08 kg / 0.18 LBS
82.0 g / 0.8 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.04 kg / 0.09 LBS
41.0 g / 0.4 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
0.21 kg / 0.45 LBS
205.0 g / 2.0 N
When mounting a element on a vertical plane (e.g., a car body), it will only hold barely about 20%-30% of its nominal power. Gravitational force and a weak degree of grip cause that holders slip faster than they pull off. Planning a hanger? Remember that the shear force is significantly lower than the maximum static pull force. On a painted metal, the element will give way down under a much lighter load. Utilizing a rubberized pad can drastically increase the grip.

Table 4: Material efficiency (substrate influence) - power losses
MW 4x6 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.04 kg / 0.09 LBS
41.0 g / 0.4 N
1 mm
25%
 0.10 kg / 0.23 LBS
102.5 g / 1.0 N
2 mm
50%
 0.21 kg / 0.45 LBS
205.0 g / 2.0 N
3 mm
75%
 0.31 kg / 0.68 LBS
307.5 g / 3.0 N
5 mm
100%
 0.41 kg / 0.90 LBS
410.0 g / 4.0 N
10 mm
100%
 0.41 kg / 0.90 LBS
410.0 g / 4.0 N
11 mm
100%
 0.41 kg / 0.90 LBS
410.0 g / 4.0 N
12 mm
100%
 0.41 kg / 0.90 LBS
410.0 g / 4.0 N
A thin sheet is not enough to conduct the full magnetic flux, which squanders power of the magnet. If you install a neodymium to a too thin substrate, the flux will pass right through and the pull force will drop sharply. To achieve the maximum of this magnet's power, you require a sufficiently solid piece of steel. The saturation phenomenon causes that on delicate walls (e.g., thin profiles), the holder shows lower pull force. We recommend selecting the steel cross-section according to the table below.

Table 5: Thermal resistance (material behavior) - resistance threshold
MW 4x6 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 0.41 kg / 0.90 LBS
410.0 g / 4.0 N
 OK
40 °C -2.2% 0.40 kg / 0.88 LBS
401.0 g / 3.9 N
 OK
60 °C -4.4% 0.39 kg / 0.86 LBS
392.0 g / 3.8 N
 OK
80 °C -6.6% 0.38 kg / 0.84 LBS
382.9 g / 3.8 N
100 °C -28.8% 0.29 kg / 0.64 LBS
291.9 g / 2.9 N
Standard neodymium magnets change their properties power above the temperature limit. Watch out for overheating – heat can irreversibly damage this magnet. With increasing heat, the neodymium's power temporarily decreases. Avoid using this magnet close to ovens exceeding its working range. Too high temperature will cause irreversible degradation of magnetic properties.
*Important note: Heat tolerance is determined by both grade, and the Permeance Coefficient Pc. Flat magnets (low Pc) may lose charge permanently at lower temperatures compared to rod magnets. Warning indicator in the table points to a risk of irreversible loss for this specific geometry.

Table 6: Magnet-Magnet interaction (attraction) - field range
MW 4x6 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Sliding Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 2.65 kg / 5.85 LBS
6 085 Gs
0.40 kg / 0.88 LBS
398 g / 3.9 N
 N/A
1 mm 1.51 kg / 3.34 LBS
8 844 Gs
0.23 kg / 0.50 LBS
227 g / 2.2 N
 1.36 kg / 3.01 LBS
~0 Gs
2 mm 0.79 kg / 1.74 LBS
6 377 Gs
0.12 kg / 0.26 LBS
118 g / 1.2 N
 0.71 kg / 1.56 LBS
~0 Gs
3 mm 0.40 kg / 0.88 LBS
4 541 Gs
0.06 kg / 0.13 LBS
60 g / 0.6 N
 0.36 kg / 0.79 LBS
~0 Gs
5 mm 0.11 kg / 0.24 LBS
2 388 Gs
0.02 kg / 0.04 LBS
17 g / 0.2 N
 0.10 kg / 0.22 LBS
~0 Gs
10 mm 0.01 kg / 0.02 LBS
687 Gs
0.00 kg / 0.00 LBS
1 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
20 mm 0.00 kg / 0.00 LBS
145 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
50 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
60 mm 0.00 kg / 0.00 LBS
8 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
5 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
4 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
3 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
2 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 much further distance than a magnet and steel combination. Such a system of two magnets produces a massive flux and a further horizon of operation. Planning to create a powerful holder? Apply two magnets instead of one magnet and a steel. Be careful that when bringing together two magnets, the pinch force is extreme. The repulsion force is marginally weaker than the attraction, but still impressive.
*Flux density in repulsion mode reaches ~0 Gs at the geometric center of the gap (due to field cancellation).
Important: Figures demonstrate shear force of dual same magnets (friction ~0.15 for Ni-Ni coating).

Table 7: Protective zones (electronics) - precautionary measures
MW 4x6 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 3.0 cm
Hearing aid 10 Gs (1.0 mT) 2.5 cm
Mechanical watch 20 Gs (2.0 mT) 2.0 cm
Phone / Smartphone 40 Gs (4.0 mT) 1.5 cm
Car key 50 Gs (5.0 mT) 1.5 cm
Payment card 400 Gs (40.0 mT) 0.5 cm
HDD hard drive 600 Gs (60.0 mT) 0.5 cm
A strong magnetic field poses a real danger to IT equipment and pacemakers. These neodymiums generate a field that destroys function of sensitive medical devices. Be aware: the invisible magnetic field penetrates the body and housings. Exceptional care must be exercised by people with cochlear implants and drug dispensers. The risk also applies to: automatic timepieces, car keys, speakers, and screens. Do not bring the product near payment cards, HDD media, or precise measuring instruments.

Table 8: Impact energy (cracking risk) - collision effects
MW 4x6 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 12.33 km/h
(3.42 m/s)
 0.00 J
30 mm 12.33 km/h
(3.43 m/s)
 0.00 J
50 mm 12.33 km/h
(3.43 m/s)
 0.00 J
100 mm 12.33 km/h
(3.43 m/s)
 0.00 J
NdFeB products are delicate – a strong collision with metal can result in shattering. Pay attention to connection velocity – a neodymium left loose speeds with massive force. Kinetic force can destroy the magnet or painful pinches to skin. Always hold the magnet during mounting so it doesn't hit violently against the steel surface. A contact at a velocity of dozens of km/h almost guarantees destruction of the magnet. Wear safety glasses when handling with large magnets.

Table 9: Anti-corrosion coating durability
MW 4x6 / 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. Note the thickness of the protective layer.

Table 10: Electrical data (Pc)
MW 4x6 / N38

Parameter Value SI Unit / Description
Magnetic Flux 792 Mx 7.9 µWb
Pc Coefficient 1.09 High (Stable)
Total magnetic flux passing through the pole surface. Essential parameter when building generators and motors. The Pc coefficient defines the working geometry.

Table 11: Physics of underwater searching
MW 4x6 / N38

Environment Effective steel pull Effect
Air (land) 0.41 kg Standard
Water (riverbed) 0.47 kg
(+0.06 kg buoyancy gain)
+14.5%
Corrosion warning: Remember to wipe the magnet thoroughly after removing it from water and apply a protective layer (e.g., oil) to avoid corrosion.
Water displaces steel, making heavy objects slightly lighter. Buoyancy helps in lifting finds.

1. Vertical hold

*Caution: On a vertical wall, the magnet retains only ~20% of its nominal pull.

2. Steel thickness impact

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

3. Power loss vs temp

*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) = 1.09

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

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%

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: 010078-2026
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The offered product is an extremely powerful cylinder magnet, produced from advanced NdFeB material, which, at dimensions of Ø4x6 mm, guarantees the highest energy density. This specific item features a tolerance of ±0.1mm and professional build quality, making it an ideal solution for professional engineers and designers. As a magnetic rod with impressive force (approx. 0.41 kg), this product is in stock from our European logistics center, ensuring rapid order fulfillment. Furthermore, its Ni-Cu-Ni coating effectively protects it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.
It successfully proves itself in DIY projects, advanced automation, and broadly understood industry, serving as a positioning or actuating element. Thanks to the high power of 4.06 N with a weight of only 0.57 g, this rod 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., 4.1 mm) using epoxy glues. To ensure long-term durability in industry, anaerobic resins are used, which do not react with the nickel coating and fill the gap, guaranteeing high repeatability of the connection.
Grade N38 is the most frequently chosen standard for professional neodymium magnets, offering an optimal price-to-power ratio and high resistance to demagnetization. If you need the strongest magnets in the same volume (Ø4x6), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our store.
The presented product is a neodymium magnet with precisely defined parameters: diameter 4 mm and height 6 mm. The value of 4.06 N means that the magnet is capable of holding a weight many times exceeding its own mass of 0.57 g. The product has a [NiCuNi] coating, which protects the surface against oxidation, 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 4 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.

Advantages and disadvantages of Nd2Fe14B magnets.

Advantages

In addition to their magnetic efficiency, neodymium magnets provide the following advantages:
  • Their magnetic field is durable, and after approximately ten years it decreases only by ~1% (theoretically),
  • They feature excellent resistance to weakening of magnetic properties due to opposing magnetic fields,
  • In other words, due to the smooth layer of nickel, the element is aesthetically pleasing,
  • Magnetic induction on the top side of the magnet is very high,
  • Through (appropriate) combination of ingredients, they can achieve high thermal resistance, enabling operation at temperatures reaching 230°C and above...
  • Thanks to freedom in constructing and the capacity to modify to unusual requirements,
  • Universal use in modern technologies – they find application in mass storage devices, electromotive mechanisms, advanced medical instruments, also industrial machines.
  • Compactness – despite small sizes they generate large force, making them ideal for precision applications

Weaknesses

What to avoid - cons of neodymium magnets: weaknesses and usage proposals
  • They are fragile upon too strong impacts. To avoid cracks, it is worth securing magnets in a protective case. Such protection not only shields the magnet but also increases its resistance to damage
  • Neodymium magnets lose force when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of power (a factor is the shape as well as dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are very resistant to heat
  • Magnets exposed to a humid environment can corrode. Therefore during using outdoors, we advise using waterproof magnets made of rubber, plastic or other material protecting against moisture
  • Limited possibility of making threads in the magnet and complex shapes - recommended is a housing - magnetic holder.
  • Potential hazard to health – tiny shards of magnets can be dangerous, when accidentally swallowed, which becomes key in the context of child health protection. It is also worth noting that small elements of these magnets are able to complicate diagnosis medical when they are in the body.
  • Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Holding force characteristics

Detachment force of the magnet in optimal conditions – what contributes to it?

Information about lifting capacity was determined for the most favorable conditions, including:
  • using a base made of mild steel, functioning as a ideal flux conductor
  • whose transverse dimension reaches at least 10 mm
  • characterized by smoothness
  • under conditions of ideal adhesion (surface-to-surface)
  • for force applied at a right angle (in the magnet axis)
  • in neutral thermal conditions

Impact of factors on magnetic holding capacity in practice

Bear in mind that the magnet holding will differ influenced by elements below, in order of importance:
  • Distance – the presence of foreign body (paint, dirt, air) interrupts the magnetic circuit, which lowers power rapidly (even by 50% at 0.5 mm).
  • Direction of force – highest force is obtained only during pulling at a 90° angle. The force required to slide of the magnet along the surface is usually several times lower (approx. 1/5 of the lifting capacity).
  • Element thickness – to utilize 100% power, the steel must be adequately massive. Paper-thin metal limits the attraction force (the magnet "punches through" it).
  • Metal type – not every steel reacts the same. High carbon content weaken the interaction with the magnet.
  • Surface condition – ground elements guarantee perfect abutment, which increases field saturation. Uneven metal reduce efficiency.
  • Temperature – heating the magnet causes a temporary drop of force. Check the thermal limit for a given model.

Lifting capacity testing was carried out on plates with a smooth surface of optimal thickness, under a perpendicular pulling force, whereas under parallel forces the lifting capacity is smaller. Additionally, even a small distance between the magnet’s surface and the plate reduces the load capacity.

Safe handling of neodymium magnets
Thermal limits

Keep cool. NdFeB magnets are susceptible to heat. If you require resistance above 80°C, ask us about special high-temperature series (H, SH, UH).

Safe distance

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

Handling rules

Exercise caution. Rare earth magnets act from a long distance and connect with huge force, often faster than you can move away.

Crushing force

Pinching hazard: The pulling power is so great that it can cause hematomas, crushing, and broken bones. Protective gloves are recommended.

Flammability

Fire warning: Neodymium dust is explosive. Do not process magnets in home conditions as this may cause fire.

Medical implants

For implant holders: Strong magnetic fields affect medical devices. Keep at least 30 cm distance or ask another person to work with the magnets.

Material brittleness

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

Danger to the youngest

Product intended for adults. Small elements pose a choking risk, causing intestinal necrosis. Keep out of reach of children and animals.

Nickel allergy

Medical facts indicate that the nickel plating (standard magnet coating) is a common allergen. If your skin reacts to metals, avoid touching magnets with bare hands and choose versions in plastic housing.

Impact on smartphones

A powerful magnetic field interferes with the functioning of magnetometers in phones and navigation systems. Keep magnets near a device to prevent breaking the sensors.

Important! Need more info? Check our post: Why are neodymium magnets dangerous?