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MW 16x9 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010035

GTIN/EAN: 5906301810346

5.00
Load capacity 8.53 kg / 83.64 N Magnetic Induction 463.05 mT / 4631 Gs
Diameter Ø
16 mm [±0,1 mm]
Height
9 mm [±0,1 mm]
Weight
13.57 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

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5.98 zł net / 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 16x9 / N38 - cylindrical magnet

Specification / characteristics - MW 16x9 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010035
GTIN/EAN 5906301810346
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 16 mm [±0,1 mm]
Height 9 mm [±0,1 mm]
Weight 13.57 g
Magnetization Direction ↑ axial
Load capacity ~ ? 8.53 kg / 83.64 N
Magnetic Induction ~ ? 463.05 mT / 4631 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 16x9 / 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 magnet - report

These information are the direct effect of a physical analysis. Results rely on models for the class Nd2Fe14B. Real-world parameters may differ. Please consider these data as a supplementary guide during assembly planning.

Table 1: Static force (pull vs distance) - characteristics
MW 16x9 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 4628 Gs
462.8 mT
 8.53 kg / 18.81 lbs
8530.0 g / 83.7 N
 warning
1 mm 4072 Gs
407.2 mT
 6.60 kg / 14.56 lbs
6603.5 g / 64.8 N
 warning
2 mm 3510 Gs
351.0 mT
 4.91 kg / 10.82 lbs
4906.8 g / 48.1 N
 warning
3 mm 2982 Gs
298.2 mT
 3.54 kg / 7.80 lbs
3540.1 g / 34.7 N
 warning
5 mm 2097 Gs
209.7 mT
 1.75 kg / 3.86 lbs
1751.1 g / 17.2 N
 weak grip
10 mm 873 Gs
87.3 mT
 0.30 kg / 0.67 lbs
303.3 g / 3.0 N
 weak grip
15 mm 411 Gs
41.1 mT
 0.07 kg / 0.15 lbs
67.3 g / 0.7 N
 weak grip
20 mm 220 Gs
22.0 mT
 0.02 kg / 0.04 lbs
19.3 g / 0.2 N
 weak grip
30 mm 83 Gs
8.3 mT
 0.00 kg / 0.01 lbs
2.7 g / 0.0 N
 weak grip
50 mm 22 Gs
2.2 mT
 0.00 kg / 0.00 lbs
0.2 g / 0.0 N
 weak grip
Grip strength drops significantly per each millimeter of gap. Keep in mind that every additional insulation layer (e.g., dirt, varnish, rust) noticeably diminishes the holding power. Magnetic products work most effectively during direct contact; gap weakens the force. Analyze how quickly the load capacity plummet, when the magnet does not adhere tightly to the metal substrate. When calculating the mounting, avoid additional spacers.

Table 2: Sliding capacity (wall)
MW 16x9 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 1.71 kg / 3.76 lbs
1706.0 g / 16.7 N
1 mm Stal (~0.2) 1.32 kg / 2.91 lbs
1320.0 g / 12.9 N
2 mm Stal (~0.2) 0.98 kg / 2.16 lbs
982.0 g / 9.6 N
3 mm Stal (~0.2) 0.71 kg / 1.56 lbs
708.0 g / 6.9 N
5 mm Stal (~0.2) 0.35 kg / 0.77 lbs
350.0 g / 3.4 N
10 mm Stal (~0.2) 0.06 kg / 0.13 lbs
60.0 g / 0.6 N
15 mm Stal (~0.2) 0.01 kg / 0.03 lbs
14.0 g / 0.1 N
20 mm Stal (~0.2) 0.00 kg / 0.01 lbs
4.0 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 indicates the theoretical weight limit needed to cause the shifting of the magnet downwards along a upright steel wall (assuming standard friction coefficient). This parameter depends on the gap size between the magnet and the metal.

Table 3: Vertical assembly (sliding) - vertical pull
MW 16x9 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
2.56 kg / 5.64 lbs
2559.0 g / 25.1 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
1.71 kg / 3.76 lbs
1706.0 g / 16.7 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.85 kg / 1.88 lbs
853.0 g / 8.4 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
4.27 kg / 9.40 lbs
4265.0 g / 41.8 N
When placing a holder on a upright surface (e.g., a car body), it you can count on only approx. 1/5 of its maximum pull force. Gravity and a weak degree of grip mean that products move down easier than they detach. Designing a wall mount? Remember that the sliding force is much weaker than the maximum static pull force. On a painted metal, the holder will slide down under a significantly smaller load. Application of an anti-slip coating can drastically improve the result.

Table 4: Material efficiency (substrate influence) - sheet metal selection
MW 16x9 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.85 kg / 1.88 lbs
853.0 g / 8.4 N
1 mm
25%
 2.13 kg / 4.70 lbs
2132.5 g / 20.9 N
2 mm
50%
 4.27 kg / 9.40 lbs
4265.0 g / 41.8 N
3 mm
75%
 6.40 kg / 14.10 lbs
6397.5 g / 62.8 N
5 mm
100%
 8.53 kg / 18.81 lbs
8530.0 g / 83.7 N
10 mm
100%
 8.53 kg / 18.81 lbs
8530.0 g / 83.7 N
11 mm
100%
 8.53 kg / 18.81 lbs
8530.0 g / 83.7 N
12 mm
100%
 8.53 kg / 18.81 lbs
8530.0 g / 83.7 N
A too thin steel is incapable of focus the full magnetic flux, which weakens actual performance of the magnet. Should you install a neodymium to a weak sheet, the field will penetrate right through and the pull force will drop sharply. To squeeze full efficiency of this magnet's power, you need a suitably thick backing of steel. The saturation phenomenon means that on sheet metal structures (e.g., car bodies), the product works worse. We recommend selecting the steel thickness based on the following data.

Table 5: Thermal stability (stability) - thermal limit
MW 16x9 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 8.53 kg / 18.81 lbs
8530.0 g / 83.7 N
 OK
40 °C -2.2% 8.34 kg / 18.39 lbs
8342.3 g / 81.8 N
 OK
60 °C -4.4% 8.15 kg / 17.98 lbs
8154.7 g / 80.0 N
 OK
80 °C -6.6% 7.97 kg / 17.56 lbs
7967.0 g / 78.2 N
100 °C -28.8% 6.07 kg / 13.39 lbs
6073.4 g / 59.6 N
Ordinary NdFeB products lose strength past the thermal threshold. Avoid high temperatures – excessive heat can permanently demagnetize this magnet. With every degree above norm, the neodymium's power briefly lowers. Refrain from using this magnet near heat sources higher than its operating temperature limit. Ignoring the limit will cause destruction of magnetism.
*Technical advisory: Heat tolerance depends not only on the material grade, but also on the magnet's shape. Flat magnets (pancake types) may lose charge permanently sooner than long magnets. Red status in the table points to a risk of irreversible loss for this particular item.

Table 6: Two magnets (attraction) - field range
MW 16x9 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Strength (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 26.55 kg / 58.54 lbs
5 658 Gs
3.98 kg / 8.78 lbs
3983 g / 39.1 N
 N/A
1 mm 23.52 kg / 51.85 lbs
8 711 Gs
3.53 kg / 7.78 lbs
3528 g / 34.6 N
 21.17 kg / 46.66 lbs
~0 Gs
2 mm 20.56 kg / 45.32 lbs
8 145 Gs
3.08 kg / 6.80 lbs
3084 g / 30.2 N
 18.50 kg / 40.79 lbs
~0 Gs
3 mm 17.80 kg / 39.23 lbs
7 578 Gs
2.67 kg / 5.89 lbs
2669 g / 26.2 N
 16.02 kg / 35.31 lbs
~0 Gs
5 mm 13.01 kg / 28.69 lbs
6 481 Gs
1.95 kg / 4.30 lbs
1952 g / 19.2 N
 11.71 kg / 25.82 lbs
~0 Gs
10 mm 5.45 kg / 12.02 lbs
4 194 Gs
0.82 kg / 1.80 lbs
818 g / 8.0 N
 4.91 kg / 10.82 lbs
~0 Gs
20 mm 0.94 kg / 2.08 lbs
1 746 Gs
0.14 kg / 0.31 lbs
142 g / 1.4 N
 0.85 kg / 1.87 lbs
~0 Gs
50 mm 0.02 kg / 0.05 lbs
260 Gs
0.00 kg / 0.01 lbs
3 g / 0.0 N
 0.02 kg / 0.04 lbs
~0 Gs
60 mm 0.01 kg / 0.02 lbs
166 Gs
0.00 kg / 0.00 lbs
1 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
70 mm 0.00 kg / 0.01 lbs
112 Gs
0.00 kg / 0.00 lbs
1 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
80 mm 0.00 kg / 0.00 lbs
79 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
58 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
43 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
Two magnetic products attract each other from a much further distance than a magnet and steel setup. Such a system of two magnets produces a massive flux and a further horizon of action. Want to build a solid fastener? Utilize two neodymiums instead of a neodymium and a steel. Be careful that when connecting a pair of magnets, the pinch force is massive. The levitation is a bit weaker than the attraction, but still large.
*Flux density in repulsion mode drops to ~0 Gs in the exact middle of the gap (caused by magnetic field nullification).
Attention: Figures demonstrate shear force of dual identical magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Hazards (electronics) - precautionary measures
MW 16x9 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 8.5 cm
Hearing aid 10 Gs (1.0 mT) 7.0 cm
Mechanical watch 20 Gs (2.0 mT) 5.5 cm
Mobile device 40 Gs (4.0 mT) 4.0 cm
Remote 50 Gs (5.0 mT) 4.0 cm
Payment card 400 Gs (40.0 mT) 2.0 cm
HDD hard drive 600 Gs (60.0 mT) 1.5 cm
Powerful magnet radiation is a serious hazard to electronics and medical implants. These magnets generate a field that prevents correct functioning of sensitive medical devices. Be aware: the unseen radiation acts through matter and glass. Increased vigilance 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, HDD media, or sensitive navigation tools.

Table 8: Collisions (cracking risk) - collision effects
MW 16x9 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 22.35 km/h
(6.21 m/s)
 0.26 J
30 mm 22.78 km/h
(6.33 m/s)
 0.27 J
50 mm 22.79 km/h
(6.33 m/s)
 0.27 J
100 mm 22.79 km/h
(6.33 m/s)
 0.27 J
NdFeB products are prone to chipping – a violent impact against metal causes immediate chipping. Control the attraction moment – a neodymium left loose turns into a projectile. Impact energy can destroy the magnet or painful pinches to skin. Be sure to control the product during installation so it doesn't hit with great force against the steel surface. A contact at a velocity of dozens of km/h ends with a crack of the magnet. Wear eye protection when handling with powerful specimens.

Table 9: Surface protection spec
MW 16x9 / 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 16x9 / N38

Parameter Value SI Unit / Description
Magnetic Flux 9 394 Mx 93.9 µWb
Pc Coefficient 0.63 High (Stable)
Total magnetic flux passing through the magnet pole. Essential parameter in coil applications as well as sensors. Pc value determines the working geometry.

Table 11: Submerged application
MW 16x9 / N38

Environment Effective steel pull Effect
Air (land) 8.53 kg Standard
Water (riverbed) 9.77 kg
(+1.24 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.
In water, the magnet feels stronger thanks to Archimedes' principle. However, remember the water resistance when pulling the rope quickly.

1. Vertical hold

*Note: On a vertical surface, the magnet retains just approx. 20-30% of its max power.

2. Steel thickness impact

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

3. Power loss vs temp

*For N38 grade, the safety limit is 80°C.

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.63

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.

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%

Sustainability

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: 010035-2026
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The presented product is an incredibly powerful cylindrical magnet, produced from modern NdFeB material, which, with dimensions of Ø16x9 mm, guarantees optimal power. The MW 16x9 / N38 model is characterized by high dimensional repeatability and industrial build quality, making it a perfect solution for the most demanding engineers and designers. As a cylindrical magnet with significant force (approx. 8.53 kg), this product is in stock from our warehouse in Poland, ensuring quick order fulfillment. Additionally, its Ni-Cu-Ni coating effectively protects it against corrosion in typical operating conditions, guaranteeing an aesthetic appearance and durability for years.
This model is created for building electric motors, advanced sensors, and efficient magnetic separators, where field concentration on a small surface counts. Thanks to the pull force of 83.64 N with a weight of only 13.57 g, this cylindrical magnet is indispensable in electronics and wherever low weight is crucial.
Due to the delicate structure of the ceramic sinter, we absolutely advise against force-fitting (so-called press-fit), as this risks immediate cracking of this precision component. To ensure stability in industry, specialized industrial adhesives are used, which are safe for nickel and fill the gap, guaranteeing high repeatability of the connection.
Grade N38 is the most popular standard for industrial neodymium magnets, offering a great economic balance and operational stability. If you need even stronger magnets in the same volume (Ø16x9), 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 16 mm and height 9 mm. The value of 83.64 N means that the magnet is capable of holding a weight many times exceeding its own mass of 13.57 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 16 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 neodymium magnets.

Benefits

In addition to their magnetic efficiency, neodymium magnets provide the following advantages:
  • They retain full power for nearly ten years – the loss is just ~1% (based on simulations),
  • Magnets very well protect themselves against loss of magnetization caused by ambient magnetic noise,
  • In other words, due to the aesthetic surface of nickel, the element gains visual value,
  • Magnets exhibit huge magnetic induction on the outer layer,
  • Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the shape) even at high temperatures reaching 230°C or more...
  • Possibility of custom creating and adapting to precise needs,
  • Wide application in innovative solutions – they are used in mass storage devices, electric motors, medical equipment, also industrial machines.
  • Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Weaknesses

What to avoid - cons of neodymium magnets and proposals for their use:
  • They are fragile upon too strong impacts. To avoid cracks, it is worth protecting magnets in a protective case. Such protection not only shields the magnet but also improves its resistance to damage
  • We warn that neodymium magnets can reduce their power at high temperatures. To prevent this, we recommend our specialized [AH] magnets, which work effectively even at 230°C.
  • Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material immune to moisture, in case of application outdoors
  • Due to limitations in creating nuts and complicated forms in magnets, we propose using a housing - magnetic mechanism.
  • Health risk to health – tiny shards of magnets are risky, when accidentally swallowed, which gains importance in the context of child health protection. Furthermore, small elements of these magnets are able to be problematic in diagnostics medical when they are in the body.
  • 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

Maximum magnetic pulling force – what contributes to it?

The specified lifting capacity concerns the maximum value, measured under laboratory conditions, meaning:
  • using a plate made of low-carbon steel, functioning as a ideal flux conductor
  • whose transverse dimension equals approx. 10 mm
  • characterized by even structure
  • without any air gap between the magnet and steel
  • for force applied at a right angle (pull-off, not shear)
  • at temperature room level

Practical aspects of lifting capacity – factors

In real-world applications, the actual lifting capacity is determined by a number of factors, ranked from crucial:
  • Space between surfaces – even a fraction of a millimeter of distance (caused e.g. by veneer or dirt) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
  • Loading method – catalog parameter refers to pulling vertically. When attempting to slide, the magnet exhibits significantly lower power (often approx. 20-30% of maximum force).
  • Metal thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field penetrates through instead of converting into lifting capacity.
  • Material type – the best choice is high-permeability steel. Stainless steels may attract less.
  • Smoothness – ideal contact is possible only on polished steel. Any scratches and bumps reduce the real contact area, reducing force.
  • Temperature influence – high temperature weakens pulling force. Too high temperature can permanently demagnetize the magnet.

Holding force was measured on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, whereas under parallel forces the lifting capacity is smaller. In addition, even a minimal clearance between the magnet’s surface and the plate lowers the holding force.

Precautions when working with neodymium magnets
Do not give to children

Only for adults. Tiny parts pose a choking risk, leading to intestinal necrosis. Keep away from kids and pets.

Operating temperature

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

Finger safety

Mind your fingers. Two large magnets will snap together instantly with a force of massive weight, crushing anything in their path. Exercise extreme caution!

Warning for heart patients

Warning for patients: Strong magnetic fields affect electronics. Maintain minimum 30 cm distance or ask another person to handle the magnets.

Magnetic interference

GPS units and mobile phones are highly sensitive to magnetic fields. Close proximity with a strong magnet can ruin the sensors in your phone.

Data carriers

Avoid bringing magnets near a purse, laptop, or screen. The magnetic field can permanently damage these devices and erase data from cards.

Safe operation

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

Skin irritation risks

Nickel alert: The Ni-Cu-Ni coating consists of nickel. If redness appears, cease handling magnets and wear gloves.

Machining danger

Drilling and cutting of NdFeB material carries a risk of fire hazard. Neodymium dust reacts violently with oxygen and is difficult to extinguish.

Risk of cracking

Despite metallic appearance, neodymium is delicate and not impact-resistant. Do not hit, as the magnet may crumble into hazardous fragments.

Security! Need more info? Check our post: Are neodymium magnets dangerous?