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MW 15x1 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010026

GTIN/EAN: 5906301810254

5.00
Load capacity 0.44 kg / 4.29 N Magnetic Induction 81.93 mT / 819 Gs
Diameter Ø
15 mm [±0,1 mm]
Height
1 mm [±0,1 mm]
Weight
1.33 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

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0.650 zł net / pcs

0.800 zł with VAT (23% VAT) / pcs

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0.800 zł
price from 1500 pcs
0.585 zł
0.720 zł
price from 3000 pcs
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0.704 zł

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.

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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 15x1 / N38 - cylindrical magnet

Specification / characteristics - MW 15x1 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010026
GTIN/EAN 5906301810254
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 15 mm [±0,1 mm]
Height 1 mm [±0,1 mm]
Weight 1.33 g
Magnetization Direction ↑ axial
Load capacity ~ ? 0.44 kg / 4.29 N
Magnetic Induction ~ ? 81.93 mT / 819 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 15x1 / N38 - cylindrical magnet
properties values units
remenance Br [min. - max.] ? 12.2-12.6 kGs
remenance Br [min. - max.] ? 1220-1260 mT
coercivity bHc ? 10.8-11.5 kOe
coercivity bHc ? 860-915 kA/m
actual internal force iHc ≥ 12 kOe
actual internal force iHc ≥ 955 kA/m
energy density [min. - max.] ? 36-38 BH max MGOe
energy density [min. - max.] ? 287-303 BH max KJ/m
max. temperature ? ≤ 80 °C

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C
properties values units
Vickers hardness ≥550 Hv
Density ≥7.4 g/cm3
Curie Temperature TC 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 simulation of the magnet - data

The following information constitute the direct effect of a physical analysis. Values are based on models for the class Nd2Fe14B. Operational conditions might slightly differ. Use these data as a reference point for designers.

Table 1: Static force (force vs gap) - power drop
MW 15x1 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 819 Gs
81.9 mT
 0.44 kg / 0.97 lbs
440.0 g / 4.3 N
 safe
1 mm 778 Gs
77.8 mT
 0.40 kg / 0.88 lbs
397.0 g / 3.9 N
 safe
2 mm 705 Gs
70.5 mT
 0.33 kg / 0.72 lbs
326.0 g / 3.2 N
 safe
3 mm 615 Gs
61.5 mT
 0.25 kg / 0.55 lbs
248.0 g / 2.4 N
 safe
5 mm 434 Gs
43.4 mT
 0.12 kg / 0.27 lbs
123.5 g / 1.2 N
 safe
10 mm 163 Gs
16.3 mT
 0.02 kg / 0.04 lbs
17.3 g / 0.2 N
 safe
15 mm 68 Gs
6.8 mT
 0.00 kg / 0.01 lbs
3.1 g / 0.0 N
 safe
20 mm 34 Gs
3.4 mT
 0.00 kg / 0.00 lbs
0.7 g / 0.0 N
 safe
30 mm 11 Gs
1.1 mT
 0.00 kg / 0.00 lbs
0.1 g / 0.0 N
 safe
50 mm 3 Gs
0.3 mT
 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
 safe
Grip strength weakens significantly with every mm of spacing. Remember that even the smallest gap (e.g., dirt, varnish, rust) significantly diminishes the holding power. Magnetic products operate strongest at the point of direct contact; distance kills the force. Notice how rapidly the load capacity plummet, when the product does not adhere directly to the steel surface. When calculating the assembly, avoid unnecessary gaps.

Table 2: Vertical capacity (vertical surface)
MW 15x1 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.09 kg / 0.19 lbs
88.0 g / 0.9 N
1 mm Stal (~0.2) 0.08 kg / 0.18 lbs
80.0 g / 0.8 N
2 mm Stal (~0.2) 0.07 kg / 0.15 lbs
66.0 g / 0.6 N
3 mm Stal (~0.2) 0.05 kg / 0.11 lbs
50.0 g / 0.5 N
5 mm Stal (~0.2) 0.02 kg / 0.05 lbs
24.0 g / 0.2 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 shows the approximate weight limit needed to cause the sliding of the magnet downwards on a upright metal surface (considering standard friction coefficient). This value is relative to the separation distance between the magnet and the metal.

Table 3: Vertical assembly (sliding) - vertical pull
MW 15x1 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.13 kg / 0.29 lbs
132.0 g / 1.3 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.09 kg / 0.19 lbs
88.0 g / 0.9 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.04 kg / 0.10 lbs
44.0 g / 0.4 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
0.22 kg / 0.49 lbs
220.0 g / 2.2 N
When hanging a holder on a upright surface (e.g., a car body), it you can count on just approx. 1/5 of nominal attraction strength. Gravitational force and a low friction coefficient mean that products slide down easier than they pull off. Want to create a vertical fastening? Note that the sliding force is significantly lower than the maximum static pull force. On a painted metal, the magnet will give way down under a noticeably lighter weight. Utilizing a rubberized coating can effectively improve the result.

Table 4: Material efficiency (saturation) - sheet metal selection
MW 15x1 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.04 kg / 0.10 lbs
44.0 g / 0.4 N
1 mm
25%
 0.11 kg / 0.24 lbs
110.0 g / 1.1 N
2 mm
50%
 0.22 kg / 0.49 lbs
220.0 g / 2.2 N
3 mm
75%
 0.33 kg / 0.73 lbs
330.0 g / 3.2 N
5 mm
100%
 0.44 kg / 0.97 lbs
440.0 g / 4.3 N
10 mm
100%
 0.44 kg / 0.97 lbs
440.0 g / 4.3 N
11 mm
100%
 0.44 kg / 0.97 lbs
440.0 g / 4.3 N
12 mm
100%
 0.44 kg / 0.97 lbs
440.0 g / 4.3 N
A thin metal plate is incapable of take in the entire magnetic field, which squanders power of the holder. Should you mount a strong magnet to a thin surface, the flux will penetrate right through and the holding will be smaller. To utilize full efficiency of this neodymium's power, you require a sufficiently solid piece of metal. The material oversaturation means that on delicate walls (e.g., car bodies), the product shows lower pull force. We recommend selecting the steel thickness based on the following data.

Table 5: Thermal stability (stability) - resistance threshold
MW 15x1 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 0.44 kg / 0.97 lbs
440.0 g / 4.3 N
 OK
40 °C -2.2% 0.43 kg / 0.95 lbs
430.3 g / 4.2 N
 OK
60 °C -4.4% 0.42 kg / 0.93 lbs
420.6 g / 4.1 N
80 °C -6.6% 0.41 kg / 0.91 lbs
411.0 g / 4.0 N
100 °C -28.8% 0.31 kg / 0.69 lbs
313.3 g / 3.1 N
Standard neodymium magnets irreversibly lose parameters past the thermal threshold. Protect against heat – excessive heat can permanently demagnetize this product. As the temperature rises, the neodymium's power momentarily lowers. Avoid using this product close to heaters higher than its safe range. Ignoring the limit will cause permanent loss of magnetic properties.
*Engineering note: Thermal stability is determined by both grade, and the Permeance Coefficient Pc. Flat magnets (low permeance coefficient) are more susceptible to demagnetization under lower heat stress than taller cylinders. The danger warning in the table signals a risk of irreversible loss for this specific geometry.

Table 6: Two magnets (repulsion) - field collision
MW 15x1 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 0.73 kg / 1.61 lbs
1 597 Gs
0.11 kg / 0.24 lbs
110 g / 1.1 N
 N/A
1 mm 0.70 kg / 1.55 lbs
1 607 Gs
0.11 kg / 0.23 lbs
106 g / 1.0 N
 0.63 kg / 1.40 lbs
~0 Gs
2 mm 0.66 kg / 1.45 lbs
1 556 Gs
0.10 kg / 0.22 lbs
99 g / 1.0 N
 0.59 kg / 1.31 lbs
~0 Gs
3 mm 0.60 kg / 1.33 lbs
1 489 Gs
0.09 kg / 0.20 lbs
91 g / 0.9 N
 0.54 kg / 1.20 lbs
~0 Gs
5 mm 0.48 kg / 1.05 lbs
1 323 Gs
0.07 kg / 0.16 lbs
71 g / 0.7 N
 0.43 kg / 0.95 lbs
~0 Gs
10 mm 0.21 kg / 0.45 lbs
868 Gs
0.03 kg / 0.07 lbs
31 g / 0.3 N
 0.18 kg / 0.41 lbs
~0 Gs
20 mm 0.03 kg / 0.06 lbs
325 Gs
0.00 kg / 0.01 lbs
4 g / 0.0 N
 0.03 kg / 0.06 lbs
~0 Gs
50 mm 0.00 kg / 0.00 lbs
37 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
23 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
15 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
10 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
7 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
5 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
Two magnetic products interact from a much further distance than a magnet and sheet setup. The connection of two magnets produces a massive flux and a wider radius of action. Want to build a strong closure? Use a pair of magnets instead of one magnet and a striker plate. Exercise caution that when bringing together two magnets, the pinch force is huge. The repulsion force is marginally weaker than the connection force, but still significant.
*Field value for N-N configuration drops to ~0 Gs in the exact middle of the gap (resulting from vector opposition).
Important: Figures show shear force of dual identical magnets (friction ~0.15 for Ni-Ni layer).

Table 7: Protective zones (electronics) - precautionary measures
MW 15x1 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 4.0 cm
Hearing aid 10 Gs (1.0 mT) 3.5 cm
Mechanical watch 20 Gs (2.0 mT) 2.5 cm
Mobile device 40 Gs (4.0 mT) 2.0 cm
Remote 50 Gs (5.0 mT) 2.0 cm
Payment card 400 Gs (40.0 mT) 1.0 cm
HDD hard drive 600 Gs (60.0 mT) 0.5 cm
A strong magnetic field poses a large risk to electronics and pacemakers. These neodymiums generate a flux that prevents correct functioning of sensitive medical devices. Remember: the unseen radiation penetrates the body and glass. Special caution must be taken by people with cochlear implants and insulin pumps. The risk also applies to: automatic timepieces, car keys, speakers, and screens. Do not bring the product near payment cards, hard drives, or precise measuring instruments.

Table 8: Collisions (kinetic energy) - warning
MW 15x1 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 18.04 km/h
(5.01 m/s)
 0.02 J
30 mm 18.31 km/h
(5.09 m/s)
 0.02 J
50 mm 18.32 km/h
(5.09 m/s)
 0.02 J
100 mm 18.32 km/h
(5.09 m/s)
 0.02 J
Magnetic elements are very brittle – a collision with steel can result in shattering. Control the attraction moment – a magnet released freely turns into a projectile. Impact energy can trigger coating fragments or painful pinches to skin. Hold the magnet firmly during installation so it doesn't hit with great force against the metal. A collision at high speed ends with a crack of the magnet. Wear safety glasses when handling with large magnets.

Table 9: Surface protection spec
MW 15x1 / 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. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Construction data (Pc)
MW 15x1 / N38

Parameter Value SI Unit / Description
Magnetic Flux 2 025 Mx 20.3 µWb
Pc Coefficient 0.11 Low (Flat)
Flux value emitted by the magnet pole. Essential parameter for generator designers and motors. Pc value determines the working geometry.

Table 11: Submerged application
MW 15x1 / N38

Environment Effective steel pull Effect
Air (land) 0.44 kg Standard
Water (riverbed) 0.50 kg
(+0.06 kg buoyancy gain)
+14.5%
Rust risk: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!
In water, the magnet feels stronger thanks to Archimedes' principle. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Vertical hold

*Caution: On a vertical surface, the magnet retains merely ~20% of its perpendicular strength.

2. Steel thickness impact

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

3. Temperature resistance

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

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.11

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

Elemental analysis

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: 010026-2026
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The presented product is a very strong cylinder magnet, composed of modern NdFeB material, which, at dimensions of Ø15x1 mm, guarantees the highest energy density. This specific item boasts a tolerance of ±0.1mm and professional build quality, making it a perfect solution for professional engineers and designers. As a magnetic rod with impressive force (approx. 0.44 kg), this product is in stock from our European logistics center, ensuring lightning-fast order fulfillment. Furthermore, its triple-layer Ni-Cu-Ni coating effectively protects it against corrosion in typical operating conditions, ensuring an aesthetic appearance and durability for years.
This model is ideal for building generators, advanced Hall effect sensors, and efficient filters, where maximum induction on a small surface counts. Thanks to the high power of 4.29 N with a weight of only 1.33 g, this rod is indispensable in miniature devices and wherever low weight is crucial.
Since our magnets have a very precise dimensions, the recommended way is to glue them into holes with a slightly larger diameter (e.g., 15.1 mm) using epoxy glues. To ensure stability in industry, anaerobic resins are used, which are safe for nickel and fill the gap, guaranteeing durability of the connection.
Grade N38 is the most popular standard for professional neodymium magnets, offering a great economic balance and operational stability. If you need the strongest magnets in the same volume (Ø15x1), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our warehouse.
This model is characterized by dimensions Ø15x1 mm, which, at a weight of 1.33 g, makes it an element with impressive magnetic energy density. The key parameter here is the lifting capacity amounting to approximately 0.44 kg (force ~4.29 N), which, with such defined dimensions, proves the high grade of the NdFeB material. The product has a [NiCuNi] coating, which protects the surface against oxidation, giving it an aesthetic, silvery shine.
This rod magnet is magnetized axially (along the height of 1 mm), which means that the N and S poles are located on the flat, circular surfaces. 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 as well as disadvantages of Nd2Fe14B magnets.

Strengths

Apart from their strong magnetic energy, neodymium magnets have these key benefits:
  • They virtually do not lose power, because even after 10 years the performance loss is only ~1% (in laboratory conditions),
  • They show high resistance to demagnetization induced by external disturbances,
  • By covering with a reflective layer of nickel, the element acquires an professional look,
  • Magnetic induction on the surface of the magnet is maximum,
  • Through (appropriate) combination of ingredients, they can achieve high thermal strength, allowing for action at temperatures reaching 230°C and above...
  • Possibility of exact machining as well as adjusting to complex applications,
  • Fundamental importance in high-tech industry – they are used in mass storage devices, electric drive systems, precision medical tools, and other advanced devices.
  • Thanks to efficiency per cm³, small magnets offer high operating force, in miniature format,

Cons

Drawbacks and weaknesses of neodymium magnets: tips and applications.
  • 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 force when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of strength (a factor is the shape and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely resistant to heat
  • They oxidize in a humid environment - during use outdoors we advise using waterproof magnets e.g. in rubber, plastic
  • Due to limitations in creating nuts and complex forms in magnets, we recommend using casing - magnetic mount.
  • Potential hazard related to microscopic parts of magnets can be dangerous, if swallowed, which becomes key in the context of child safety. Furthermore, small elements of these devices are able to disrupt the diagnostic process medical in case of swallowing.
  • High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which increases costs of application in large quantities

Pull force analysis

Magnetic strength at its maximum – what affects it?

The force parameter is a measurement result conducted under the following configuration:
  • on a plate made of mild steel, effectively closing the magnetic flux
  • with a thickness of at least 10 mm
  • with a surface cleaned and smooth
  • with total lack of distance (without coatings)
  • under vertical application of breakaway force (90-degree angle)
  • at standard ambient temperature

Key elements affecting lifting force

Please note that the magnet holding may be lower subject to the following factors, in order of importance:
  • Clearance – existence of any layer (paint, dirt, air) acts as an insulator, which reduces capacity steeply (even by 50% at 0.5 mm).
  • Pull-off angle – note that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the nominal value.
  • Wall thickness – thin material does not allow full use of the magnet. Part of the magnetic field penetrates through instead of generating force.
  • Steel type – low-carbon steel gives the best results. Alloy admixtures decrease magnetic properties and holding force.
  • Surface quality – the smoother and more polished the plate, the larger the contact zone and higher the lifting capacity. Unevenness creates an air distance.
  • Temperature influence – high temperature weakens pulling force. Exceeding the limit temperature can permanently demagnetize the magnet.

Lifting capacity testing was carried out on plates with a smooth surface of optimal thickness, under a perpendicular pulling force, however under attempts to slide the magnet the lifting capacity is smaller. Moreover, even a minimal clearance between the magnet and the plate lowers the holding force.

H&S for magnets
Do not drill into magnets

Mechanical processing of neodymium magnets poses a fire risk. Neodymium dust oxidizes rapidly with oxygen and is hard to extinguish.

Handling rules

Be careful. Rare earth magnets attract from a distance and snap with huge force, often faster than you can move away.

Cards and drives

Intense magnetic fields can corrupt files on payment cards, HDDs, and storage devices. Keep a distance of min. 10 cm.

GPS and phone interference

A powerful magnetic field interferes with the operation of compasses in smartphones and GPS navigation. Maintain magnets close to a device to avoid breaking the sensors.

Allergic reactions

A percentage of the population experience a hypersensitivity to Ni, which is the typical protective layer for NdFeB magnets. Extended handling may cause an allergic reaction. We recommend use protective gloves.

Do not give to children

Always keep magnets away from children. Ingestion danger is significant, and the effects of magnets clamping inside the body are tragic.

Permanent damage

Regular neodymium magnets (grade N) lose magnetization when the temperature goes above 80°C. Damage is permanent.

Pacemakers

Medical warning: Neodymium magnets can turn off heart devices and defibrillators. Stay away if you have medical devices.

Magnets are brittle

Protect your eyes. Magnets can explode upon uncontrolled impact, ejecting shards into the air. Wear goggles.

Bodily injuries

Watch your fingers. Two powerful magnets will snap together instantly with a force of massive weight, destroying everything in their path. Exercise extreme caution!

Safety First! Details about hazards in the article: Magnet Safety Guide.