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MW 10x20 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010007

GTIN/EAN: 5906301810063

5.00
Load capacity 2.23 kg / 21.88 N Magnetic Induction 600.73 mT / 6007 Gs
Diameter Ø
10 mm [±0,1 mm]
Height
20 mm [±0,1 mm]
Weight
11.78 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

view technical data »

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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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Detailed specification - MW 10x20 / N38 - cylindrical magnet

Specification / characteristics - MW 10x20 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010007
GTIN/EAN 5906301810063
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 10 mm [±0,1 mm]
Height 20 mm [±0,1 mm]
Weight 11.78 g
Magnetization Direction ↑ axial
Load capacity ~ ? 2.23 kg / 21.88 N
Magnetic Induction ~ ? 600.73 mT / 6007 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 10x20 / N38 - cylindrical magnet
properties values units
Remanence Br ? 12.2-12.6 kGs
Remanence Br ? 1220-1260 mT
Coercivity bHc ? 10.8-11.5 kOe
Coercivity bHc ? 860-915 kA/m
Intrinsic coercivity iHc ≥ 12 kOe
Intrinsic coercivity iHc ≥ 955 kA/m
Energy product BHmax ? 36-38 BH max MGOe
Energy product BHmax ? 287-303 BH max KJ/m
Maximum working temperature ? ≤ 80 °C

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C
properties values units
Vickers hardness ≥550 Hv
Density ≥7.4 g/cm3
Curie Temperature TC 310 °C
Curie Temperature TF 590 °F
Specific resistance 150 μΩ⋅cm
Bending strength 250 MPa
Compressive strength 1000~1100 MPa
Thermal expansion parallel (∥) to orientation (M) (3-4) x 10-6 °C-1
Thermal expansion perpendicular (⊥) to orientation (M) -(1-3) x 10-6 °C-1
Young's modulus 1.7 x 104 kg/mm²

Physical analysis of the assembly - technical parameters

The following information constitute the result of a physical simulation. Values rely on algorithms for the class Nd2Fe14B. Real-world parameters may deviate from the simulation results. Use these calculations as a reference point for designers.

Table 1: Static pull force (force vs gap) - interaction chart
MW 10x20 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 6003 Gs
600.3 mT
 2.23 kg / 4.92 LBS
2230.0 g / 21.9 N
 warning
1 mm 4815 Gs
481.5 mT
 1.44 kg / 3.16 LBS
1435.1 g / 14.1 N
 weak grip
2 mm 3743 Gs
374.3 mT
 0.87 kg / 1.91 LBS
867.2 g / 8.5 N
 weak grip
3 mm 2869 Gs
286.9 mT
 0.51 kg / 1.12 LBS
509.3 g / 5.0 N
 weak grip
5 mm 1696 Gs
169.6 mT
 0.18 kg / 0.39 LBS
177.9 g / 1.7 N
 weak grip
10 mm 570 Gs
57.0 mT
 0.02 kg / 0.04 LBS
20.1 g / 0.2 N
 weak grip
15 mm 256 Gs
25.6 mT
 0.00 kg / 0.01 LBS
4.1 g / 0.0 N
 weak grip
20 mm 137 Gs
13.7 mT
 0.00 kg / 0.00 LBS
1.2 g / 0.0 N
 weak grip
30 mm 54 Gs
5.4 mT
 0.00 kg / 0.00 LBS
0.2 g / 0.0 N
 weak grip
50 mm 15 Gs
1.5 mT
 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
 weak grip
Magnetic force weakens sharply with every mm of distance. Keep in mind that even a microscopic distance (e.g., contamination, varnish, veneer) significantly diminishes the holding power. Neodymiums hold strongest during direct contact; distance drastically cuts the power. Analyze how flashily the load capacity plummet, when the product does not adhere directly to the metal substrate. When designing the mounting, discard redundant distances.

Table 2: Shear hold (vertical surface)
MW 10x20 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.45 kg / 0.98 LBS
446.0 g / 4.4 N
1 mm Stal (~0.2) 0.29 kg / 0.63 LBS
288.0 g / 2.8 N
2 mm Stal (~0.2) 0.17 kg / 0.38 LBS
174.0 g / 1.7 N
3 mm Stal (~0.2) 0.10 kg / 0.22 LBS
102.0 g / 1.0 N
5 mm Stal (~0.2) 0.04 kg / 0.08 LBS
36.0 g / 0.4 N
10 mm Stal (~0.2) 0.00 kg / 0.01 LBS
4.0 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 defines the estimated shear load needed to cause the shifting of the magnet vertically against a upright steel wall (considering standard friction coefficient). This value varies with the gap size between the magnet and the metal.

Table 3: Wall mounting (sliding) - vertical pull
MW 10x20 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.67 kg / 1.47 LBS
669.0 g / 6.6 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.45 kg / 0.98 LBS
446.0 g / 4.4 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.22 kg / 0.49 LBS
223.0 g / 2.2 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
1.12 kg / 2.46 LBS
1115.0 g / 10.9 N
When mounting a magnet on a upright plane (e.g., a fridge), it will only hold barely approx. 1/5 of its nominal power. Gravity and a weak degree of grip influence the fact that magnets slip easier than they pop off the substrate. Planning a hanger? Note that the shear force is noticeably lower than the maximum static pull force. On a painted metal, the element will slip down under a significantly smaller weight. Using a rubber layer can drastically increase the grip.

Table 4: Steel thickness (saturation) - sheet metal selection
MW 10x20 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.22 kg / 0.49 LBS
223.0 g / 2.2 N
1 mm
25%
 0.56 kg / 1.23 LBS
557.5 g / 5.5 N
2 mm
50%
 1.12 kg / 2.46 LBS
1115.0 g / 10.9 N
3 mm
75%
 1.67 kg / 3.69 LBS
1672.5 g / 16.4 N
5 mm
100%
 2.23 kg / 4.92 LBS
2230.0 g / 21.9 N
10 mm
100%
 2.23 kg / 4.92 LBS
2230.0 g / 21.9 N
11 mm
100%
 2.23 kg / 4.92 LBS
2230.0 g / 21.9 N
12 mm
100%
 2.23 kg / 4.92 LBS
2230.0 g / 21.9 N
A thin metal plate is not enough to focus the full magnetic flux, which squanders power of the magnet. Should you mount a strong magnet to a thin surface, the flux will penetrate right through and the holding will be smaller. To squeeze full efficiency of this magnet's potential, you need a suitably thick piece of metal. The saturation effect means that on delicate walls (e.g., appliance housings), the holder holds weaker. We suggest choosing the steel thickness according to the table below.

Table 5: Thermal resistance (material behavior) - power drop
MW 10x20 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 2.23 kg / 4.92 LBS
2230.0 g / 21.9 N
 OK
40 °C -2.2% 2.18 kg / 4.81 LBS
2180.9 g / 21.4 N
 OK
60 °C -4.4% 2.13 kg / 4.70 LBS
2131.9 g / 20.9 N
 OK
80 °C -6.6% 2.08 kg / 4.59 LBS
2082.8 g / 20.4 N
100 °C -28.8% 1.59 kg / 3.50 LBS
1587.8 g / 15.6 N
Ordinary NdFeB products irreversibly lose parameters above the temperature limit. Protect against heat – high temperature can irreversibly demagnetize this product. With every degree above norm, the magnet's force temporarily drops. Do not use this product near heat sources exceeding its operating temperature limit. Ignoring the limit will result in permanent loss of magnetic properties.
*Engineering note: Thermal stability depends not only on the material grade, as well as the dimension ratios. Flat magnets (pancake types) are more susceptible to demagnetization at lower temperatures compared to rod magnets. Warning indicator in the table signals a risk of irreversible loss for this particular item.

Table 6: Two magnets (repulsion) - field range
MW 10x20 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Lateral Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 17.45 kg / 38.46 LBS
6 140 Gs
2.62 kg / 5.77 LBS
2617 g / 25.7 N
 N/A
1 mm 14.15 kg / 31.20 LBS
10 813 Gs
2.12 kg / 4.68 LBS
2123 g / 20.8 N
 12.74 kg / 28.08 LBS
~0 Gs
2 mm 11.23 kg / 24.75 LBS
9 631 Gs
1.68 kg / 3.71 LBS
1684 g / 16.5 N
 10.11 kg / 22.28 LBS
~0 Gs
3 mm 8.78 kg / 19.35 LBS
8 515 Gs
1.32 kg / 2.90 LBS
1316 g / 12.9 N
 7.90 kg / 17.41 LBS
~0 Gs
5 mm 5.21 kg / 11.48 LBS
6 559 Gs
0.78 kg / 1.72 LBS
781 g / 7.7 N
 4.69 kg / 10.33 LBS
~0 Gs
10 mm 1.39 kg / 3.07 LBS
3 391 Gs
0.21 kg / 0.46 LBS
209 g / 2.0 N
 1.25 kg / 2.76 LBS
~0 Gs
20 mm 0.16 kg / 0.35 LBS
1 140 Gs
0.02 kg / 0.05 LBS
24 g / 0.2 N
 0.14 kg / 0.31 LBS
~0 Gs
50 mm 0.00 kg / 0.01 LBS
165 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
107 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
74 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
53 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
39 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
30 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 much further distance than a magnet and sheet setup. Such a system of two magnets produces a massive flux and a larger range of performance. Designing a powerful holder? Utilize two neodymiums instead of one magnet and a striker plate. Remember that when connecting a pair of magnets, the collision energy is huge. The levitation is slightly lower than the connection force, but still impressive.
*Field value between like poles is approximately ~0 Gs at the geometric center between the magnets (due to field cancellation).
Important: Calculations demonstrate sliding force of dual identical magnets (friction ~0.15 for Ni-Ni layer).

Table 7: Hazards (electronics) - warnings
MW 10x20 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 8.0 cm
Hearing aid 10 Gs (1.0 mT) 6.0 cm
Timepiece 20 Gs (2.0 mT) 4.5 cm
Phone / Smartphone 40 Gs (4.0 mT) 3.5 cm
Car key 50 Gs (5.0 mT) 3.5 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 poses a serious hazard to IT equipment and pacemakers. These neodymiums produce a field that destroys function of sensitive medical devices. Notice: the unseen radiation penetrates the body and plastic. Exceptional care must be taken by people with hearing aids and drug dispensers. Also at risk are: mechanical watches, remotes, speakers, and displays. Do not bring the product near payment cards, HDD media, or precise measuring instruments.

Table 8: Collisions (kinetic energy) - collision effects
MW 10x20 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 9.96 km/h
(2.77 m/s)
 0.05 J
30 mm 10.03 km/h
(2.79 m/s)
 0.05 J
50 mm 10.03 km/h
(2.79 m/s)
 0.05 J
100 mm 10.03 km/h
(2.79 m/s)
 0.05 J
NdFeB products are prone to chipping – a strong collision with metal causes immediate chipping. Pay attention to connection velocity – a magnet released freely turns into a projectile. Impact energy can cause material chips or injury to skin. Always hold the magnet during mounting so it doesn't hit with great force against the steel surface. A collision at high speed almost guarantees destruction of the magnet. Wear safety glasses when working with large magnets.

Table 9: Surface protection spec
MW 10x20 / N38

Technical parameter Value / Description
Coating type [NiCuNi] Nickel
Layer structure Nickel - Copper - Nickel
Layer thickness 10-20 µm
Salt spray test (SST) ? 24 h
Recommended environment Indoors only (dry)
The SST (salt spray test) is an industry standard for determining coating lifespan in harsh conditions. Note the thickness of the protective layer.

Table 10: Construction data (Pc)
MW 10x20 / N38

Parameter Value SI Unit / Description
Magnetic Flux 5 223 Mx 52.2 µWb
Pc Coefficient 1.21 High (Stable)
Flux value passing through the pole surface. Key data for generator designers as well as sensors. Pc value determines the working geometry.

Table 11: Submerged application
MW 10x20 / N38

Environment Effective steel pull Effect
Air (land) 2.23 kg Standard
Water (riverbed) 2.55 kg
(+0.32 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. Vertical hold

*Note: On a vertical surface, the magnet retains just a fraction of its perpendicular strength.

2. Efficiency vs thickness

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

3. Temperature resistance

*For standard magnets, the max working temp is 80°C.

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 1.21

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.

Technical specification and ecology

Material specification

iron (Fe) 64% – 68%
neodymium (Nd) 29% – 32%
boron (B) 1.1% – 1.2%
dysprosium (Dy) 0.5% – 2.0%
coating (Ni-Cu-Ni) < 0.05%

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: 010007-2026
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The offered product is a very strong rod magnet, manufactured from durable NdFeB material, which, at dimensions of Ø10x20 mm, guarantees optimal power. This specific item is characterized by a tolerance of ±0.1mm and professional build quality, making it an excellent solution for the most demanding engineers and designers. As a cylindrical magnet with significant force (approx. 2.23 kg), this product is in stock from our European logistics center, ensuring quick order fulfillment. Moreover, its Ni-Cu-Ni coating effectively protects it against corrosion in typical operating conditions, guaranteeing an aesthetic appearance and durability for years.
It successfully proves itself in modeling, advanced automation, and broadly understood industry, serving as a fastening or actuating element. Thanks to the pull force of 21.88 N with a weight of only 11.78 g, this cylindrical magnet is indispensable in miniature devices and wherever low weight is crucial.
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 precision component. To ensure long-term durability in industry, specialized industrial adhesives are used, which do not react with the nickel coating and fill the gap, guaranteeing durability of the connection.
Grade N38 is the most popular 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 (Ø10x20), 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 10 mm and height 20 mm. The key parameter here is the holding force amounting to approximately 2.23 kg (force ~21.88 N), which, with such defined dimensions, proves the high power of the NdFeB material. The product has a [NiCuNi] coating, which secures it 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 10 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 diametrically if your project requires it.

Strengths as well as weaknesses of neodymium magnets.

Advantages

Besides their remarkable strength, neodymium magnets offer the following advantages:
  • They do not lose strength, even after approximately 10 years – the decrease in strength is only ~1% (according to tests),
  • They maintain their magnetic properties even under external field action,
  • In other words, due to the reflective layer of silver, the element gains visual value,
  • The surface of neodymium magnets generates a unique magnetic field – this is a key feature,
  • Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
  • Possibility of accurate modeling as well as adjusting to concrete needs,
  • Huge importance in innovative solutions – they serve a role in hard drives, electric motors, precision medical tools, and technologically advanced constructions.
  • Thanks to efficiency per cm³, small magnets offer high operating force, with minimal size,

Disadvantages

Characteristics of disadvantages of neodymium magnets: application proposals
  • To avoid cracks under impact, we recommend using special steel holders. Such a solution protects the magnet and simultaneously increases its durability.
  • When exposed to high temperature, neodymium magnets experience a drop in force. Often, when the temperature exceeds 80°C, their power decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
  • Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material immune to moisture, in case of application outdoors
  • We suggest casing - magnetic mount, due to difficulties in realizing nuts inside the magnet and complex forms.
  • Potential hazard to health – tiny shards of magnets can be dangerous, when accidentally swallowed, which gains importance in the aspect of protecting the youngest. It is also worth noting that small elements of these devices can complicate diagnosis medical in case of swallowing.
  • Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Holding force characteristics

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

Breakaway force is the result of a measurement for optimal configuration, assuming:
  • using a plate made of low-carbon steel, serving as a ideal flux conductor
  • with a cross-section minimum 10 mm
  • with an ideally smooth touching surface
  • under conditions of no distance (surface-to-surface)
  • under vertical force direction (90-degree angle)
  • at temperature approx. 20 degrees Celsius

Magnet lifting force in use – key factors

Effective lifting capacity impacted by working environment parameters, including (from priority):
  • Gap (betwixt the magnet and the metal), since even a microscopic distance (e.g. 0.5 mm) leads to a drastic drop in force by up to 50% (this also applies to varnish, rust or debris).
  • Force direction – catalog parameter refers to pulling vertically. When attempting to slide, the magnet holds much less (typically approx. 20-30% of nominal force).
  • Plate thickness – insufficiently thick plate does not close the flux, causing part of the power to be escaped to the other side.
  • Metal type – not every steel reacts the same. Alloy additives weaken the attraction effect.
  • Base smoothness – the smoother and more polished the surface, the larger the contact zone and higher the lifting capacity. Unevenness creates an air distance.
  • Temperature – temperature increase results in weakening of force. Check the thermal limit for a given model.

Holding force was measured on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, however under parallel forces the lifting capacity is smaller. In addition, even a slight gap between the magnet’s surface and the plate decreases the lifting capacity.

Safe handling of neodymium magnets
Do not drill into magnets

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

Threat to navigation

Navigation devices and smartphones are highly sensitive to magnetism. Direct contact with a powerful NdFeB magnet can permanently damage the internal compass in your phone.

Do not give to children

Strictly keep magnets out of reach of children. Choking hazard is significant, and the effects of magnets connecting inside the body are fatal.

Hand protection

Risk of injury: The attraction force is so great that it can result in hematomas, pinching, and broken bones. Protective gloves are recommended.

Metal Allergy

A percentage of the population suffer from a contact allergy to Ni, which is the typical protective layer for NdFeB magnets. Prolonged contact can result in dermatitis. We suggest wear protective gloves.

Safe distance

Avoid bringing magnets near a purse, computer, or screen. The magnetism can irreversibly ruin these devices and erase data from cards.

Beware of splinters

Beware of splinters. Magnets can fracture upon uncontrolled impact, ejecting shards into the air. Eye protection is mandatory.

Thermal limits

Keep cool. NdFeB magnets are sensitive to temperature. If you need operation above 80°C, inquire about HT versions (H, SH, UH).

Health Danger

Medical warning: Neodymium magnets can deactivate pacemakers and defibrillators. Do not approach if you have electronic implants.

Handling guide

Use magnets consciously. Their powerful strength can shock even experienced users. Stay alert and respect their force.

Danger! Need more info? Read our article: Why are neodymium magnets dangerous?