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MW 4x10 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010075

GTIN/EAN: 5906301810742

5.00
Load capacity 0.32 kg / 3.16 N Magnetic Induction 606.05 mT / 6061 Gs
Diameter Ø
4 mm [±0,1 mm]
Height
10 mm [±0,1 mm]
Weight
0.94 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

technical parameters »

0.650 zł net / pcs

0.800 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 of the product - MW 4x10 / N38 - cylindrical magnet

Specification / characteristics - MW 4x10 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010075
GTIN/EAN 5906301810742
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 10 mm [±0,1 mm]
Weight 0.94 g
Magnetization Direction ↑ axial
Load capacity ~ ? 0.32 kg / 3.16 N
Magnetic Induction ~ ? 606.05 mT / 6061 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 4x10 / 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 simulation of the product - technical parameters

The following values represent the result of a physical calculation. Values rely on models for the material Nd2Fe14B. Real-world parameters may deviate from the simulation results. Please consider these data as a preliminary roadmap during assembly planning.

Table 1: Static pull force (force vs distance) - power drop
MW 4x10 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 6049 Gs
604.9 mT
 0.32 kg / 0.71 lbs
320.0 g / 3.1 N
 low risk
1 mm 3327 Gs
332.7 mT
 0.10 kg / 0.21 lbs
96.8 g / 0.9 N
 low risk
2 mm 1732 Gs
173.2 mT
 0.03 kg / 0.06 lbs
26.2 g / 0.3 N
 low risk
3 mm 969 Gs
96.9 mT
 0.01 kg / 0.02 lbs
8.2 g / 0.1 N
 low risk
5 mm 389 Gs
38.9 mT
 0.00 kg / 0.00 lbs
1.3 g / 0.0 N
 low risk
10 mm 90 Gs
9.0 mT
 0.00 kg / 0.00 lbs
0.1 g / 0.0 N
 low risk
15 mm 35 Gs
3.5 mT
 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
 low risk
20 mm 17 Gs
1.7 mT
 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
 low risk
30 mm 6 Gs
0.6 mT
 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
 low risk
50 mm 2 Gs
0.2 mT
 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
 low risk
Pulling power drops sharply with every subsequent millimeter of distance. Keep in mind that even a microscopic distance (e.g., dirt, varnish, dust) noticeably weakens the grip. Magnets operate strongest during direct contact; distance nullifies the force. Observe how quickly the pull force plummet, when the magnet does not adhere tightly to the steel surface. When designing the arrangement, eliminate additional spacers.

Table 2: Shear force (wall)
MW 4x10 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.06 kg / 0.14 lbs
64.0 g / 0.6 N
1 mm Stal (~0.2) 0.02 kg / 0.04 lbs
20.0 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 table below shows the estimated weight limit required to start the shifting of the magnet downwards against a vertical steel plate (assuming typical friction coefficient). This parameter depends on the separation distance between the magnet and the metal.

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MW 4x10 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.10 kg / 0.21 lbs
96.0 g / 0.9 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.06 kg / 0.14 lbs
64.0 g / 0.6 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.03 kg / 0.07 lbs
32.0 g / 0.3 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
0.16 kg / 0.35 lbs
160.0 g / 1.6 N
When placing a magnet on a vertical surface (e.g., a fridge), it you can count on only approx. 20%-30% of nominal attraction strength. Gravity and a low friction coefficient influence the fact that products slide down easier than they pull off. Planning a vertical fastening? Remember that the shear force is noticeably lower than the maximum static pull force. On a slippery surface, the holder will give way down under a significantly smaller cargo. Using a rubber pad can effectively increase the grip.

Table 4: Material efficiency (saturation) - power losses
MW 4x10 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.03 kg / 0.07 lbs
32.0 g / 0.3 N
1 mm
25%
 0.08 kg / 0.18 lbs
80.0 g / 0.8 N
2 mm
50%
 0.16 kg / 0.35 lbs
160.0 g / 1.6 N
3 mm
75%
 0.24 kg / 0.53 lbs
240.0 g / 2.4 N
5 mm
100%
 0.32 kg / 0.71 lbs
320.0 g / 3.1 N
10 mm
100%
 0.32 kg / 0.71 lbs
320.0 g / 3.1 N
11 mm
100%
 0.32 kg / 0.71 lbs
320.0 g / 3.1 N
12 mm
100%
 0.32 kg / 0.71 lbs
320.0 g / 3.1 N
A too thin steel is not enough to absorb the entire magnetic field, which weakens actual performance of the holder. Should you attach a powerful product to a thin surface, the magnetism will pass right through and the pull force will drop sharply. To achieve full efficiency of this magnet's power, you need a suitably thick piece of steel. The material oversaturation causes that on sheet metal structures (e.g., car bodies), the holder holds weaker. We suggest choosing the steel thickness according to the table below.

Table 5: Thermal stability (material behavior) - power drop
MW 4x10 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 0.32 kg / 0.71 lbs
320.0 g / 3.1 N
 OK
40 °C -2.2% 0.31 kg / 0.69 lbs
313.0 g / 3.1 N
 OK
60 °C -4.4% 0.31 kg / 0.67 lbs
305.9 g / 3.0 N
 OK
80 °C -6.6% 0.30 kg / 0.66 lbs
298.9 g / 2.9 N
100 °C -28.8% 0.23 kg / 0.50 lbs
227.8 g / 2.2 N
Classic neodymiums change their properties strength past the thermal threshold. Avoid high temperatures – high temperature can irreversibly destroy this magnet. With every degree above norm, the neodymium's capacity momentarily drops. Do not use this magnet close to heaters exceeding its working range. Exceeding the critical threshold will result in permanent loss of magnetic properties.
*Technical advisory: Heat tolerance depends not only on the material grade, but also on the magnet's shape. Low-profile magnets (pancake types) risk losing magnetic properties at lower temperatures than long magnets. Red status in the table points to a risk of irreversible loss for this particular item.

Table 6: Magnet-Magnet interaction (attraction) - field collision
MW 4x10 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 2.83 kg / 6.25 lbs
6 138 Gs
0.43 kg / 0.94 lbs
425 g / 4.2 N
 N/A
1 mm 1.63 kg / 3.59 lbs
9 174 Gs
0.24 kg / 0.54 lbs
244 g / 2.4 N
 1.47 kg / 3.23 lbs
~0 Gs
2 mm 0.86 kg / 1.89 lbs
6 655 Gs
0.13 kg / 0.28 lbs
129 g / 1.3 N
 0.77 kg / 1.70 lbs
~0 Gs
3 mm 0.44 kg / 0.97 lbs
4 777 Gs
0.07 kg / 0.15 lbs
66 g / 0.7 N
 0.40 kg / 0.88 lbs
~0 Gs
5 mm 0.13 kg / 0.28 lbs
2 561 Gs
0.02 kg / 0.04 lbs
19 g / 0.2 N
 0.11 kg / 0.25 lbs
~0 Gs
10 mm 0.01 kg / 0.03 lbs
778 Gs
0.00 kg / 0.00 lbs
2 g / 0.0 N
 0.01 kg / 0.02 lbs
~0 Gs
20 mm 0.00 kg / 0.00 lbs
179 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
19 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
12 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
8 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
6 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
4 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
3 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
Two strong neodymiums interact from a significantly greater distance than a magnet and sheet combination. The setup of two magnets produces a massive flux and a larger range of performance. Want to build a solid fastener? Apply two magnets instead of one magnet and a steel. Exercise caution that when connecting a pair of magnets, the impact force is massive. The levitation is a bit weaker than the connection force, but still impressive.
*The magnetic induction in repulsion mode reaches ~0 Gs at the geometric center of the gap (resulting from vector opposition).
Note: Results show shear force of two matching neodymium magnets (friction ~0.15 for Ni-Ni coating).

Table 7: Protective zones (electronics) - precautionary measures
MW 4x10 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 3.5 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
Extremely neodym field is a serious hazard to IT equipment and pacemakers. These NdFeB products generate a field that disrupts operation of sensitive medical devices. Be aware: the invisible magnetic field passes through tissues and glass. Exceptional care must be exercised by people with cochlear implants and drug dispensers. Also at risk are: automatic timepieces, car keys, speakers, and screens. Avoid contact with magnetic cards, hard drives, or precise measuring instruments.

Table 8: Impact energy (cracking risk) - warning
MW 4x10 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 8.56 km/h
(2.38 m/s)
 0.00 J
30 mm 8.56 km/h
(2.38 m/s)
 0.00 J
50 mm 8.56 km/h
(2.38 m/s)
 0.00 J
100 mm 8.57 km/h
(2.38 m/s)
 0.00 J
Neodymium magnets are delicate – a strong collision with metal can result in shattering. Watch the impact speed – a neodymium left loose becomes dangerous. Striking energy can destroy the magnet or painful pinches to skin. Hold the magnet firmly during bringing near metal so it doesn't hit with great force against the metal. A collision at high speed almost guarantees destruction of the magnet. Wear eye protection when working with large magnets.

Table 9: Corrosion resistance
MW 4x10 / 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. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Electrical data (Pc)
MW 4x10 / N38

Parameter Value SI Unit / Description
Magnetic Flux 864 Mx 8.6 µWb
Pc Coefficient 1.31 High (Stable)
Flux value passing through the pole surface. Essential parameter in coil applications as well as sensors. The Pc coefficient defines the working geometry.

Table 11: Hydrostatics and buoyancy
MW 4x10 / N38

Environment Effective steel pull Effect
Air (land) 0.32 kg Standard
Water (riverbed) 0.37 kg
(+0.05 kg buoyancy gain)
+14.5%
Rust risk: 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. Sliding resistance

*Note: On a vertical surface, the magnet retains just ~20% of its nominal pull.

2. Steel thickness impact

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

3. Temperature resistance

*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) = 1.31

The chart above illustrates the magnetic characteristics of the material within the second quadrant of the hysteresis loop. The solid red line represents the demagnetization curve (material potential), while the dashed blue line is the load line based on the magnet's geometry. The Pc (Permeance Coefficient), also known as the load line slope, is a dimensionless value that describes the relationship between the magnet's shape and its magnetic stability. The intersection of these two lines (the black dot) is the operating point — it determines the actual magnetic flux density generated by the magnet in this specific configuration. A higher Pc value means the magnet is more 'slender' (tall relative to its area), resulting in a higher operating point and better resistance to irreversible demagnetization caused by external fields or temperature. A value of 0.42 is relatively low (typical for flat magnets), meaning the operating point is closer to the 'knee' of the curve — caution is advised when operating at temperatures near the maximum limit to avoid strength loss.

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: 010075-2026
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This product is an incredibly powerful cylindrical magnet, composed of advanced NdFeB material, which, at dimensions of Ø4x10 mm, guarantees the highest energy density. This specific item is characterized by an accuracy of ±0.1mm and industrial build quality, making it an ideal solution for the most demanding engineers and designers. As a cylindrical magnet with significant force (approx. 0.32 kg), this product is in stock from our European logistics center, ensuring lightning-fast order fulfillment. Moreover, its Ni-Cu-Ni coating shields 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 3.16 N with a weight of only 0.94 g, this cylindrical magnet is indispensable in electronics and wherever every gram matters.
Due to the brittleness of the NdFeB material, you must not use force-fitting (so-called press-fit), as this risks chipping the coating of this precision component. To ensure long-term durability in industry, specialized industrial adhesives are used, which are safe for nickel and fill the gap, guaranteeing high repeatability of the connection.
Magnets NdFeB grade N38 are suitable for the majority of applications in modeling and machine building, where excessive miniaturization with maximum force is not required. If you need the strongest magnets in the same volume (Ø4x10), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our warehouse.
This model is characterized by dimensions Ø4x10 mm, which, at a weight of 0.94 g, makes it an element with impressive magnetic energy density. The value of 3.16 N means that the magnet is capable of holding a weight many times exceeding its own mass of 0.94 g. 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 4 mm. Such an arrangement is standard 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 as well as cons of neodymium magnets.

Strengths

Apart from their notable magnetic energy, neodymium magnets have these key benefits:
  • They virtually do not lose strength, because even after ten years the performance loss is only ~1% (in laboratory conditions),
  • Magnets perfectly defend themselves against loss of magnetization caused by foreign field sources,
  • By covering with a lustrous layer of nickel, the element presents an nice look,
  • Neodymium magnets achieve maximum magnetic induction on a contact point, which allows for strong attraction,
  • Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and are able to act (depending on the form) even at a temperature of 230°C or more...
  • Possibility of detailed shaping and modifying to specific needs,
  • Key role in modern industrial fields – they find application in magnetic memories, electric motors, diagnostic systems, and other advanced devices.
  • Relatively small size with high pulling force – neodymium magnets offer high power in tiny dimensions, which allows their use in small systems

Limitations

Disadvantages of neodymium magnets:
  • To avoid cracks upon strong impacts, we recommend using special steel housings. Such a solution secures the magnet and simultaneously increases its durability.
  • Neodymium magnets lose power 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
  • When exposed to humidity, magnets usually rust. For applications outside, it is recommended to use protective magnets, such as those in rubber or plastics, which prevent oxidation and corrosion.
  • Due to limitations in realizing threads and complex shapes in magnets, we propose using cover - magnetic holder.
  • Health risk to health – tiny shards of magnets are risky, when accidentally swallowed, which is particularly important in the context of child health protection. Additionally, small elements of these magnets are able to complicate diagnosis medical when they are in the body.
  • Due to neodymium price, their price is relatively high,

Lifting parameters

Magnetic strength at its maximum – what affects it?

The declared magnet strength refers to the maximum value, recorded under ideal test conditions, namely:
  • with the use of a sheet made of low-carbon steel, ensuring maximum field concentration
  • with a thickness of at least 10 mm
  • with an polished contact surface
  • without any clearance between the magnet and steel
  • for force applied at a right angle (pull-off, not shear)
  • in neutral thermal conditions

What influences lifting capacity in practice

During everyday use, the real power is determined by several key aspects, listed from most significant:
  • Gap between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by veneer or unevenness) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
  • Force direction – declared lifting capacity refers to detachment vertically. When slipping, the magnet exhibits much less (typically approx. 20-30% of maximum force).
  • Element thickness – for full efficiency, the steel must be adequately massive. Paper-thin metal restricts the attraction force (the magnet "punches through" it).
  • Steel grade – the best choice is pure iron steel. Hardened steels may attract less.
  • Surface finish – ideal contact is obtained only on smooth steel. Rough texture reduce the real contact area, weakening the magnet.
  • Temperature – heating the magnet causes a temporary drop of force. Check the maximum operating temperature for a given model.

Holding force was tested on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, whereas under shearing force the holding force is lower. In addition, even a slight gap between the magnet and the plate decreases the lifting capacity.

H&S for magnets
Danger to the youngest

Only for adults. Small elements can be swallowed, causing intestinal necrosis. Keep out of reach of kids and pets.

Serious injuries

Large magnets can smash fingers in a fraction of a second. Do not put your hand between two strong magnets.

Power loss in heat

Standard neodymium magnets (grade N) undergo demagnetization when the temperature surpasses 80°C. This process is irreversible.

Dust explosion hazard

Machining of NdFeB material carries a risk of fire hazard. Magnetic powder oxidizes rapidly with oxygen and is difficult to extinguish.

Life threat

For implant holders: Strong magnetic fields affect electronics. Maintain at least 30 cm distance or request help to work with the magnets.

Keep away from electronics

A strong magnetic field interferes with the functioning of magnetometers in smartphones and GPS navigation. Keep magnets near a device to prevent breaking the sensors.

Handling guide

Be careful. Neodymium magnets act from a distance and connect with huge force, often quicker than you can move away.

Eye protection

Despite the nickel coating, neodymium is delicate and cannot withstand shocks. Avoid impacts, as the magnet may shatter into sharp, dangerous pieces.

Sensitization to coating

It is widely known that the nickel plating (the usual finish) is a potent allergen. For allergy sufferers, avoid direct skin contact or opt for versions in plastic housing.

Threat to electronics

Very strong magnetic fields can erase data on payment cards, HDDs, and storage devices. Keep a distance of min. 10 cm.

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