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MW 10x2 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010006

GTIN/EAN: 5906301810056

5.00
Load capacity 1.27 kg / 12.50 N Magnetic Induction 230.11 mT / 2301 Gs
Diameter Ø
10 mm [±0,1 mm]
Height
2 mm [±0,1 mm]
Weight
1.18 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

see properties »

0.380 zł net / pcs

0.467 zł with VAT (23% VAT) / pcs

price for transport

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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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Product card - MW 10x2 / N38 - cylindrical magnet

Specification / characteristics - MW 10x2 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010006
GTIN/EAN 5906301810056
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 2 mm [±0,1 mm]
Weight 1.18 g
Magnetization Direction ↑ axial
Load capacity ~ ? 1.27 kg / 12.50 N
Magnetic Induction ~ ? 230.11 mT / 2301 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 10x2 / 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 magnet - data

The following information represent the direct effect of a physical calculation. Results are based on algorithms for the class Nd2Fe14B. Actual performance might slightly differ. Please consider these calculations as a supplementary guide when designing systems.

Table 1: Static force (force vs gap) - power drop
MW 10x2 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 2300 Gs
230.0 mT
 1.27 kg / 2.80 pounds
1270.0 g / 12.5 N
 low risk
1 mm 1974 Gs
197.4 mT
 0.94 kg / 2.06 pounds
935.3 g / 9.2 N
 low risk
2 mm 1570 Gs
157.0 mT
 0.59 kg / 1.31 pounds
592.1 g / 5.8 N
 low risk
3 mm 1194 Gs
119.4 mT
 0.34 kg / 0.75 pounds
342.3 g / 3.4 N
 low risk
5 mm 661 Gs
66.1 mT
 0.10 kg / 0.23 pounds
104.9 g / 1.0 N
 low risk
10 mm 178 Gs
17.8 mT
 0.01 kg / 0.02 pounds
7.6 g / 0.1 N
 low risk
15 mm 66 Gs
6.6 mT
 0.00 kg / 0.00 pounds
1.1 g / 0.0 N
 low risk
20 mm 31 Gs
3.1 mT
 0.00 kg / 0.00 pounds
0.2 g / 0.0 N
 low risk
30 mm 10 Gs
1.0 mT
 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
 low risk
50 mm 2 Gs
0.2 mT
 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
 low risk
Pulling power weakens significantly with every subsequent millimeter of gap. Remember that even a very thin break (e.g., dirt, varnish, rust) significantly diminishes the holding power. Magnetic products work strongest at the point of direct contact; gap kills the power. Observe how flashily the pull force plummet, when the magnet does not touch directly to the metal substrate. When calculating the arrangement, avoid unnecessary gaps.

Table 2: Sliding force (wall)
MW 10x2 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.25 kg / 0.56 pounds
254.0 g / 2.5 N
1 mm Stal (~0.2) 0.19 kg / 0.41 pounds
188.0 g / 1.8 N
2 mm Stal (~0.2) 0.12 kg / 0.26 pounds
118.0 g / 1.2 N
3 mm Stal (~0.2) 0.07 kg / 0.15 pounds
68.0 g / 0.7 N
5 mm Stal (~0.2) 0.02 kg / 0.04 pounds
20.0 g / 0.2 N
10 mm Stal (~0.2) 0.00 kg / 0.00 pounds
2.0 g / 0.0 N
15 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
20 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
30 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
50 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
The following data presents the estimated shear load required to cause the sliding of the magnet down on a vertical metal surface (considering typical friction). The holding force varies with the gap size between the magnet and the surface.

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MW 10x2 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.38 kg / 0.84 pounds
381.0 g / 3.7 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.25 kg / 0.56 pounds
254.0 g / 2.5 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.13 kg / 0.28 pounds
127.0 g / 1.2 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
0.64 kg / 1.40 pounds
635.0 g / 6.2 N
When hanging a holder on a vertical surface (e.g., a fridge), it will only hold barely about 1/5 of its maximum pull force. Gravity and a weak degree of grip cause that products slide down faster than they detach. Planning a vertical fastening? Note that the sliding force is noticeably lower than the maximum static pull force. On a smooth steel, the element will give way down under a noticeably lighter cargo. Using a rubber coating can effectively improve the result.

Table 4: Material efficiency (saturation) - power losses
MW 10x2 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.13 kg / 0.28 pounds
127.0 g / 1.2 N
1 mm
25%
 0.32 kg / 0.70 pounds
317.5 g / 3.1 N
2 mm
50%
 0.64 kg / 1.40 pounds
635.0 g / 6.2 N
3 mm
75%
 0.95 kg / 2.10 pounds
952.5 g / 9.3 N
5 mm
100%
 1.27 kg / 2.80 pounds
1270.0 g / 12.5 N
10 mm
100%
 1.27 kg / 2.80 pounds
1270.0 g / 12.5 N
11 mm
100%
 1.27 kg / 2.80 pounds
1270.0 g / 12.5 N
12 mm
100%
 1.27 kg / 2.80 pounds
1270.0 g / 12.5 N
A too thin steel is unable to conduct the full magnetic flux, which weakens actual performance of the magnet. If you mount a strong magnet to a weak sheet, the magnetism will pass right through and the pull force will drop sharply. To squeeze 100% of this magnet's power, you need a suitably thick element of steel. The saturation effect causes that on thin elements (e.g., car bodies), the holder holds weaker. We suggest choosing the steel thickness according to the table below.

Table 5: Working in heat (material behavior) - power drop
MW 10x2 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 1.27 kg / 2.80 pounds
1270.0 g / 12.5 N
 OK
40 °C -2.2% 1.24 kg / 2.74 pounds
1242.1 g / 12.2 N
 OK
60 °C -4.4% 1.21 kg / 2.68 pounds
1214.1 g / 11.9 N
80 °C -6.6% 1.19 kg / 2.62 pounds
1186.2 g / 11.6 N
100 °C -28.8% 0.90 kg / 1.99 pounds
904.2 g / 8.9 N
Classic neodymiums change their properties strength above the temperature limit. Watch out for overheating – high temperature can permanently damage this magnet. As the temperature rises, the neodymium's capacity temporarily decreases. Refrain from using this magnet near heat sources exceeding its safe range. Ignoring the limit will cause irreversible degradation of magnetic properties.
*Technical advisory: Temperature resistance is determined by both grade, as well as the dimension ratios. Low-profile magnets (low permeance coefficient) risk losing magnetic properties under lower heat stress than long magnets. Warning indicator in the table signals a risk of irreversible loss for this specific geometry.

Table 6: Magnet-Magnet interaction (attraction) - field collision
MW 10x2 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Sliding Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 2.56 kg / 5.65 pounds
3 867 Gs
0.38 kg / 0.85 pounds
384 g / 3.8 N
 N/A
1 mm 2.25 kg / 4.96 pounds
4 312 Gs
0.34 kg / 0.74 pounds
338 g / 3.3 N
 2.03 kg / 4.46 pounds
~0 Gs
2 mm 1.89 kg / 4.16 pounds
3 948 Gs
0.28 kg / 0.62 pounds
283 g / 2.8 N
 1.70 kg / 3.74 pounds
~0 Gs
3 mm 1.52 kg / 3.36 pounds
3 548 Gs
0.23 kg / 0.50 pounds
229 g / 2.2 N
 1.37 kg / 3.02 pounds
~0 Gs
5 mm 0.92 kg / 2.02 pounds
2 750 Gs
0.14 kg / 0.30 pounds
137 g / 1.3 N
 0.82 kg / 1.82 pounds
~0 Gs
10 mm 0.21 kg / 0.47 pounds
1 322 Gs
0.03 kg / 0.07 pounds
32 g / 0.3 N
 0.19 kg / 0.42 pounds
~0 Gs
20 mm 0.02 kg / 0.03 pounds
355 Gs
0.00 kg / 0.01 pounds
2 g / 0.0 N
 0.01 kg / 0.03 pounds
~0 Gs
50 mm 0.00 kg / 0.00 pounds
33 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
 0.00 kg / 0.00 pounds
~0 Gs
60 mm 0.00 kg / 0.00 pounds
20 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
 0.00 kg / 0.00 pounds
~0 Gs
70 mm 0.00 kg / 0.00 pounds
13 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
 0.00 kg / 0.00 pounds
~0 Gs
80 mm 0.00 kg / 0.00 pounds
9 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
 0.00 kg / 0.00 pounds
~0 Gs
90 mm 0.00 kg / 0.00 pounds
6 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
 0.00 kg / 0.00 pounds
~0 Gs
100 mm 0.00 kg / 0.00 pounds
5 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
 0.00 kg / 0.00 pounds
~0 Gs
Two magnetic products interact from a much further distance than a magnet and sheet combination. The setup of magnet-to-magnet creates a more powerful interaction and a further horizon of operation. Want to build a strong closure? Use a pair of magnets instead of a neodymium and a striker plate. 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.
*Field value in repulsion mode drops to ~0 Gs in the exact middle of the gap (due to field cancellation).
Note: Results demonstrate shear force of two identical neodymium magnets (friction ~0.15 for Ni-Ni layer).

Table 7: Hazards (implants) - precautionary measures
MW 10x2 / 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) 1.0 cm
A strong magnetic field poses a serious hazard to IT equipment as well as medical implants. These magnets produce a flux that prevents correct functioning of sensitive medical devices. Remember: the invisible magnetic field passes through tissues and glass. Exceptional care must be taken by people with hearing aids and insulin pumps. The risk also applies to: mechanical watches, remotes, speakers, and displays. Avoid contact with magnetic cards, HDD media, or precise measuring instruments.

Table 8: Impact energy (kinetic energy) - collision effects
MW 10x2 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 25.03 km/h
(6.95 m/s)
 0.03 J
30 mm 25.11 km/h
(6.97 m/s)
 0.03 J
50 mm 25.11 km/h
(6.98 m/s)
 0.03 J
100 mm 25.11 km/h
(6.98 m/s)
 0.03 J
NdFeB products are delicate – a collision with steel risks their cracking. Control the attraction moment – a magnet released freely speeds with massive force. Kinetic force can trigger coating fragments or injury to fingers. Be sure to control the product during bringing near metal so it doesn't hit with great force against the steel surface. A contact at a velocity of dozens of km/h means shattering of the magnet. Use safety goggles when working with large magnets.

Table 9: Coating parameters (durability)
MW 10x2 / 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)
Neodymium magnets are highly susceptible to corrosion without proper protection. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Electrical data (Flux)
MW 10x2 / N38

Parameter Value SI Unit / Description
Magnetic Flux 2 097 Mx 21.0 µWb
Pc Coefficient 0.29 Low (Flat)
Flux value passing through the pole surface. Key data when building generators as well as sensors. Pc value defines the working geometry.

Table 11: Underwater work (magnet fishing)
MW 10x2 / N38

Environment Effective steel pull Effect
Air (land) 1.27 kg Standard
Water (riverbed) 1.45 kg
(+0.18 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!
Water displaces steel, making heavy objects slightly lighter. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Shear force

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

2. Steel thickness impact

*Thin metal sheet (e.g. computer case) severely weakens the holding force.

3. Power loss vs temp

*For N38 grade, the max working temp is 80°C.

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.29

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

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%

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: 010006-2026
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The offered product is an extremely powerful cylindrical magnet, composed of advanced NdFeB material, which, with dimensions of Ø10x2 mm, guarantees the highest energy density. The MW 10x2 / N38 component boasts a tolerance of ±0.1mm and professional build quality, making it an ideal solution for professional engineers and designers. As a magnetic rod with significant force (approx. 1.27 kg), this product is available off-the-shelf from our warehouse in Poland, ensuring lightning-fast order fulfillment. Furthermore, its triple-layer Ni-Cu-Ni coating shields it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.
This model is perfect for building generators, advanced Hall effect sensors, and efficient filters, where field concentration on a small surface counts. Thanks to the high power of 12.50 N with a weight of only 1.18 g, this cylindrical magnet is indispensable in miniature devices and wherever every gram matters.
Since our magnets have a tolerance of ±0.1mm, the recommended way is to glue them into holes with a slightly larger diameter (e.g., 10.1 mm) using epoxy glues. To ensure stability in industry, specialized industrial adhesives are used, which do not react with the nickel coating and fill the gap, guaranteeing durability of the connection.
Magnets NdFeB grade N38 are suitable for the majority of applications in modeling and machine building, where extreme miniaturization with maximum force is not required. If you need the strongest magnets in the same volume (Ø10x2), 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 Ø10x2 mm, which, at a weight of 1.18 g, makes it an element with impressive magnetic energy density. The key parameter here is the lifting capacity amounting to approximately 1.27 kg (force ~12.50 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.
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.

Pros and cons of rare earth magnets.

Advantages

Apart from their notable magnetic energy, neodymium magnets have these key benefits:
  • They have constant strength, and over around 10 years their performance decreases symbolically – ~1% (in testing),
  • They are noted for resistance to demagnetization induced by external field influence,
  • Thanks to the smooth finish, the surface of nickel, gold, or silver-plated gives an modern appearance,
  • The surface of neodymium magnets generates a concentrated magnetic field – this is a key feature,
  • Thanks to resistance to high temperature, they can operate (depending on the shape) even at temperatures up to 230°C and higher...
  • Considering the potential of free molding and customization to specialized solutions, neodymium magnets can be produced in a wide range of geometric configurations, which makes them more universal,
  • Versatile presence in innovative solutions – they are utilized in hard drives, brushless drives, advanced medical instruments, and modern systems.
  • Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Cons

Disadvantages of neodymium magnets:
  • They are fragile upon heavy impacts. To avoid cracks, it is worth protecting magnets using a steel holder. Such protection not only protects the magnet but also increases its resistance to damage
  • When exposed to high temperature, neodymium magnets suffer a drop in strength. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size and shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
  • They rust in a humid environment. For use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
  • Due to limitations in creating threads and complicated shapes in magnets, we propose using casing - magnetic holder.
  • Possible danger related to microscopic parts of magnets are risky, when accidentally swallowed, which gains importance in the context of child safety. It is also worth noting that small components of these products are able to be problematic in diagnostics medical when they are in the body.
  • Due to expensive raw materials, their price is relatively high,

Holding force characteristics

Maximum magnetic pulling force – what affects it?

Information about lifting capacity was determined for the most favorable conditions, taking into account:
  • with the contact of a yoke made of special test steel, guaranteeing maximum field concentration
  • whose thickness equals approx. 10 mm
  • characterized by lack of roughness
  • under conditions of no distance (metal-to-metal)
  • for force acting at a right angle (in the magnet axis)
  • at room temperature

Practical lifting capacity: influencing factors

Holding efficiency is affected by working environment parameters, such as (from most important):
  • Clearance – the presence of foreign body (paint, dirt, gap) interrupts the magnetic circuit, which reduces capacity steeply (even by 50% at 0.5 mm).
  • Loading method – declared lifting capacity refers to pulling vertically. When applying parallel force, the magnet holds much less (often approx. 20-30% of nominal force).
  • Element thickness – to utilize 100% power, the steel must be adequately massive. Thin sheet limits the lifting capacity (the magnet "punches through" it).
  • Metal type – different alloys attracts identically. Alloy additives worsen the attraction effect.
  • Surface condition – ground elements guarantee perfect abutment, which improves field saturation. Rough surfaces weaken the grip.
  • Temperature – heating the magnet causes a temporary drop of induction. Check the maximum operating temperature for a given model.

Holding force was checked on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, in contrast under parallel forces the load capacity is reduced by as much as 5 times. Additionally, even a minimal clearance between the magnet’s surface and the plate decreases the load capacity.

H&S for magnets
Cards and drives

Equipment safety: Strong magnets can damage data carriers and delicate electronics (heart implants, hearing aids, timepieces).

Beware of splinters

Despite metallic appearance, neodymium is brittle and cannot withstand shocks. Do not hit, as the magnet may crumble into sharp, dangerous pieces.

Power loss in heat

Standard neodymium magnets (N-type) lose magnetization when the temperature surpasses 80°C. Damage is permanent.

Avoid contact if allergic

It is widely known that nickel (the usual finish) is a common allergen. For allergy sufferers, prevent direct skin contact and select encased magnets.

Bodily injuries

Large magnets can break fingers in a fraction of a second. Under no circumstances place your hand betwixt two strong magnets.

Conscious usage

Handle with care. Rare earth magnets attract from a long distance and snap with huge force, often faster than you can react.

Health Danger

Medical warning: Strong magnets can turn off pacemakers and defibrillators. Stay away if you have electronic implants.

Combustion hazard

Fire warning: Rare earth powder is explosive. Avoid machining magnets in home conditions as this may cause fire.

Magnetic interference

GPS units and smartphones are highly susceptible to magnetism. Close proximity with a powerful NdFeB magnet can decalibrate the sensors in your phone.

Choking Hazard

NdFeB magnets are not suitable for play. Eating a few magnets may result in them pinching intestinal walls, which constitutes a direct threat to life and necessitates immediate surgery.

Important! Need more info? Read our article: Are neodymium magnets dangerous?