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MW 10x30 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010009

GTIN/EAN: 5906301810087

5.00
Load capacity 1.92 kg / 18.79 N Magnetic Induction 610.80 mT / 6108 Gs
Diameter Ø
10 mm [±0,1 mm]
Height
30 mm [±0,1 mm]
Weight
17.67 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

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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 10x30 / N38 - cylindrical magnet

Specification / characteristics - MW 10x30 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010009
GTIN/EAN 5906301810087
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 30 mm [±0,1 mm]
Weight 17.67 g
Magnetization Direction ↑ axial
Load capacity ~ ? 1.92 kg / 18.79 N
Magnetic Induction ~ ? 610.80 mT / 6108 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 10x30 / 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 modeling of the magnet - data

Presented data are the result of a mathematical calculation. Values were calculated on models for the class Nd2Fe14B. Operational performance might slightly differ. Treat these data as a supplementary guide during assembly planning.

Table 1: Static force (force vs gap) - characteristics
MW 10x30 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 6103 Gs
610.3 mT
 1.92 kg / 4.23 LBS
1920.0 g / 18.8 N
 safe
1 mm 4905 Gs
490.5 mT
 1.24 kg / 2.73 LBS
1240.1 g / 12.2 N
 safe
2 mm 3823 Gs
382.3 mT
 0.75 kg / 1.66 LBS
753.3 g / 7.4 N
 safe
3 mm 2940 Gs
294.0 mT
 0.45 kg / 0.98 LBS
445.6 g / 4.4 N
 safe
5 mm 1754 Gs
175.4 mT
 0.16 kg / 0.35 LBS
158.5 g / 1.6 N
 safe
10 mm 607 Gs
60.7 mT
 0.02 kg / 0.04 LBS
19.0 g / 0.2 N
 safe
15 mm 280 Gs
28.0 mT
 0.00 kg / 0.01 LBS
4.0 g / 0.0 N
 safe
20 mm 154 Gs
15.4 mT
 0.00 kg / 0.00 LBS
1.2 g / 0.0 N
 safe
30 mm 63 Gs
6.3 mT
 0.00 kg / 0.00 LBS
0.2 g / 0.0 N
 safe
50 mm 19 Gs
1.9 mT
 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
 safe
Magnetic force weakens drastically with every subsequent millimeter of distance. Note that even a microscopic distance (e.g., dirt, paint, rust) strongly diminishes the holding power. Magnets hold strongest at the point of direct contact; gap weakens the power. Analyze how quickly the pull force fall, when the magnet does not adhere flatly to the steel surface. When calculating the mounting, discard unnecessary gaps.

Table 2: Sliding load (wall)
MW 10x30 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.38 kg / 0.85 LBS
384.0 g / 3.8 N
1 mm Stal (~0.2) 0.25 kg / 0.55 LBS
248.0 g / 2.4 N
2 mm Stal (~0.2) 0.15 kg / 0.33 LBS
150.0 g / 1.5 N
3 mm Stal (~0.2) 0.09 kg / 0.20 LBS
90.0 g / 0.9 N
5 mm Stal (~0.2) 0.03 kg / 0.07 LBS
32.0 g / 0.3 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
The following data indicates the approximate holding capacity sufficient to start the sliding of the magnet downwards against a upright steel wall (assuming standard friction coefficient). The holding force varies with the separation distance between the magnet and the metal.

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MW 10x30 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.58 kg / 1.27 LBS
576.0 g / 5.7 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.38 kg / 0.85 LBS
384.0 g / 3.8 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.19 kg / 0.42 LBS
192.0 g / 1.9 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
0.96 kg / 2.12 LBS
960.0 g / 9.4 N
When mounting a holder on a upright plane (e.g., a board), it you can count on just approx. 1/5 of its nominal power. Gravity as well as a low friction coefficient mean that magnets slip easier than they pop off the substrate. Want to create a hanger? Note that the sliding force is significantly lower than the perpendicular breakaway force. On a painted metal, the magnet will slide down under a much lighter weight. Application of an anti-slip coating can significantly improve the result.

Table 4: Material efficiency (substrate influence) - power losses
MW 10x30 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.19 kg / 0.42 LBS
192.0 g / 1.9 N
1 mm
25%
 0.48 kg / 1.06 LBS
480.0 g / 4.7 N
2 mm
50%
 0.96 kg / 2.12 LBS
960.0 g / 9.4 N
3 mm
75%
 1.44 kg / 3.17 LBS
1440.0 g / 14.1 N
5 mm
100%
 1.92 kg / 4.23 LBS
1920.0 g / 18.8 N
10 mm
100%
 1.92 kg / 4.23 LBS
1920.0 g / 18.8 N
11 mm
100%
 1.92 kg / 4.23 LBS
1920.0 g / 18.8 N
12 mm
100%
 1.92 kg / 4.23 LBS
1920.0 g / 18.8 N
A thin sheet is not enough to conduct the entire magnetic field, which squanders power of the magnet. Should you install a neodymium to a thin surface, the flux will pass right through and the holding will be smaller. To achieve the maximum of this neodymium's power, you need a suitably thick element of steel. The material oversaturation means that on delicate walls (e.g., car bodies), the holder shows lower pull force. We recommend selecting the steel thickness based on the following data.

Table 5: Thermal resistance (stability) - resistance threshold
MW 10x30 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 1.92 kg / 4.23 LBS
1920.0 g / 18.8 N
 OK
40 °C -2.2% 1.88 kg / 4.14 LBS
1877.8 g / 18.4 N
 OK
60 °C -4.4% 1.84 kg / 4.05 LBS
1835.5 g / 18.0 N
 OK
80 °C -6.6% 1.79 kg / 3.95 LBS
1793.3 g / 17.6 N
100 °C -28.8% 1.37 kg / 3.01 LBS
1367.0 g / 13.4 N
Classic neodymiums irreversibly lose parameters after exceeding the maximum temperature. Avoid high temperatures – high temperature can permanently damage this magnet. With every degree above norm, the neodymium's power temporarily decreases. Do not use this magnet near heat sources higher than its operating temperature limit. Ignoring the limit will cause permanent loss of magnetism.
*Technical advisory: Thermal stability is determined by both grade, as well as the dimension ratios. Low-profile magnets (low Pc) may lose charge permanently at lower temperatures than taller cylinders. Red status in the table signals permanent field degradation for this specific geometry.

Table 6: Magnet-Magnet interaction (attraction) - field range
MW 10x30 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Strength (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 18.04 kg / 39.76 LBS
6 166 Gs
2.71 kg / 5.96 LBS
2705 g / 26.5 N
 N/A
1 mm 14.65 kg / 32.31 LBS
11 003 Gs
2.20 kg / 4.85 LBS
2198 g / 21.6 N
 13.19 kg / 29.08 LBS
~0 Gs
2 mm 11.65 kg / 25.68 LBS
9 810 Gs
1.75 kg / 3.85 LBS
1747 g / 17.1 N
 10.48 kg / 23.11 LBS
~0 Gs
3 mm 9.13 kg / 20.12 LBS
8 684 Gs
1.37 kg / 3.02 LBS
1369 g / 13.4 N
 8.21 kg / 18.11 LBS
~0 Gs
5 mm 5.45 kg / 12.02 LBS
6 710 Gs
0.82 kg / 1.80 LBS
818 g / 8.0 N
 4.91 kg / 10.82 LBS
~0 Gs
10 mm 1.49 kg / 3.28 LBS
3 507 Gs
0.22 kg / 0.49 LBS
223 g / 2.2 N
 1.34 kg / 2.95 LBS
~0 Gs
20 mm 0.18 kg / 0.39 LBS
1 213 Gs
0.03 kg / 0.06 LBS
27 g / 0.3 N
 0.16 kg / 0.35 LBS
~0 Gs
50 mm 0.00 kg / 0.01 LBS
190 Gs
0.00 kg / 0.00 LBS
1 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
60 mm 0.00 kg / 0.00 LBS
126 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
88 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
64 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
48 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
37 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
Two magnets attract each other from a significantly greater distance than a magnet and steel combination. The connection of two magnets creates a more powerful interaction and a larger range of action. Designing a solid fastener? Apply two magnets instead of one magnet and a steel. Exercise caution that when connecting a pair of magnets, the pinch force is massive. The levitation is marginally weaker than the attraction, but still significant.
*Field value for N-N configuration reaches ~0 Gs in the exact middle of the gap (due to field cancellation).
Attention: Estimates show shear force of dual matching magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Hazards (implants) - precautionary measures
MW 10x30 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 8.5 cm
Hearing aid 10 Gs (1.0 mT) 6.5 cm
Mechanical watch 20 Gs (2.0 mT) 5.0 cm
Mobile device 40 Gs (4.0 mT) 4.0 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) 1.5 cm
A strong magnetic field is a serious hazard to electronic devices as well as pacemakers. These neodymiums produce a flux that prevents correct functioning of sensitive medical devices. Notice: the invisible magnetic field penetrates the body and glass. Exceptional care must be taken by people with hearing aids and insulin pumps. Also at risk are: mechanical watches, remotes, membranes, and displays. Do not place the magnet near cards, HDD media, or sensitive navigation tools.

Table 8: Impact energy (cracking risk) - collision effects
MW 10x30 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 7.59 km/h
(2.11 m/s)
 0.04 J
30 mm 7.65 km/h
(2.12 m/s)
 0.04 J
50 mm 7.65 km/h
(2.12 m/s)
 0.04 J
100 mm 7.65 km/h
(2.12 m/s)
 0.04 J
Magnetic elements are very brittle – a violent impact against metal causes immediate chipping. Pay attention to connection velocity – a neodymium left loose speeds with massive force. Striking energy can trigger coating fragments or painful pinches to fingers. Be sure to control the product during installation so it doesn't slam with momentum against the steel surface. A collision at high speed ends with a crack of the neodymium. Wear safety glasses when playing with powerful specimens.

Table 9: Corrosion resistance
MW 10x30 / 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. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Electrical data (Flux)
MW 10x30 / N38

Parameter Value SI Unit / Description
Magnetic Flux 5 528 Mx 55.3 µWb
Pc Coefficient 1.38 High (Stable)
Total magnetic flux emitted by the magnet pole. Key data when building generators as well as sensors. Pc value determines the working geometry.

Table 11: Hydrostatics and buoyancy
MW 10x30 / N38

Environment Effective steel pull Effect
Air (land) 1.92 kg Standard
Water (riverbed) 2.20 kg
(+0.28 kg buoyancy gain)
+14.5%
Corrosion warning: 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. However, remember the water resistance when pulling the rope quickly.

1. Shear force

*Warning: On a vertical surface, the magnet holds only ~20% of its max power.

2. Plate thickness effect

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

3. Power loss vs temp

*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) = 1.38

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 and environmental data

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: 010009-2026
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This product is an exceptionally strong rod magnet, composed of modern NdFeB material, which, at dimensions of Ø10x30 mm, guarantees maximum efficiency. The MW 10x30 / 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 impressive force (approx. 1.92 kg), this product is available off-the-shelf from our European logistics center, ensuring quick order fulfillment. Furthermore, its triple-layer Ni-Cu-Ni coating secures it against corrosion in typical operating conditions, ensuring an aesthetic appearance and durability for years.
This model is ideal for building electric motors, advanced Hall effect sensors, and efficient filters, where field concentration on a small surface counts. Thanks to the high power of 18.79 N with a weight of only 17.67 g, this rod is indispensable in miniature devices and wherever every gram matters.
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 professional 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.
Magnets NdFeB grade N38 are strong enough for 90% of applications in modeling and machine building, where excessive miniaturization with maximum force is not required. If you need the strongest magnets in the same volume (Ø10x30), 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 10 mm and height 30 mm. The value of 18.79 N means that the magnet is capable of holding a weight many times exceeding its own mass of 17.67 g. The product has a [NiCuNi] coating, which secures it against external factors, giving it an aesthetic, silvery shine.
This rod magnet is magnetized axially (along the height of 30 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 diametrically if your project requires it.

Strengths as well as weaknesses of neodymium magnets.

Pros

Apart from their superior power, neodymium magnets have these key benefits:
  • They retain attractive force for nearly 10 years – the drop is just ~1% (in theory),
  • They show high resistance to demagnetization induced by external magnetic fields,
  • By using a lustrous coating of gold, the element gains an elegant look,
  • They are known for high magnetic induction at the operating surface, which increases their power,
  • 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 individual forming and adapting to atypical applications,
  • Fundamental importance in future technologies – they find application in hard drives, electromotive mechanisms, advanced medical instruments, also modern systems.
  • Compactness – despite small sizes they generate large force, making them ideal for precision applications

Weaknesses

Disadvantages of NdFeB magnets:
  • To avoid cracks under impact, we recommend using special steel housings. Such a solution secures the magnet and simultaneously improves its durability.
  • NdFeB magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of power (a factor is the shape as well as dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are very resistant to heat
  • Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material resistant to moisture, when using outdoors
  • We suggest cover - magnetic holder, due to difficulties in creating nuts inside the magnet and complex forms.
  • Possible danger related to microscopic parts of magnets can be dangerous, when accidentally swallowed, which is particularly important in the context of child safety. It is also worth noting that small components of these devices are able to be problematic in diagnostics medical in case of swallowing.
  • With budget limitations the cost of neodymium magnets can be a barrier,

Holding force characteristics

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

Breakaway force was defined for ideal contact conditions, assuming:
  • on a block made of mild steel, effectively closing the magnetic flux
  • whose thickness is min. 10 mm
  • characterized by smoothness
  • without any clearance between the magnet and steel
  • during detachment in a direction vertical to the plane
  • in neutral thermal conditions

Lifting capacity in practice – influencing factors

Bear in mind that the working load may be lower depending on elements below, starting with the most relevant:
  • Clearance – the presence of foreign body (rust, tape, air) acts as an insulator, which reduces capacity rapidly (even by 50% at 0.5 mm).
  • Direction of force – maximum parameter is obtained only during pulling at a 90° angle. The resistance to sliding of the magnet along the plate is usually several times smaller (approx. 1/5 of the lifting capacity).
  • Wall thickness – thin material does not allow full use of the magnet. Part of the magnetic field penetrates through instead of converting into lifting capacity.
  • Material composition – different alloys reacts the same. High carbon content worsen the interaction with the magnet.
  • Plate texture – smooth surfaces guarantee perfect abutment, which improves field saturation. Uneven metal weaken the grip.
  • Heat – NdFeB sinters have a sensitivity to temperature. When it is hot they are weaker, and in frost gain strength (up to a certain limit).

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

Precautions when working with NdFeB magnets
Medical implants

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

Conscious usage

Use magnets with awareness. Their powerful strength can shock even experienced users. Stay alert and respect their power.

Sensitization to coating

Medical facts indicate that the nickel plating (standard magnet coating) is a strong allergen. If your skin reacts to metals, prevent touching magnets with bare hands or select encased magnets.

Crushing risk

Danger of trauma: The pulling power is so great that it can result in blood blisters, crushing, and even bone fractures. Protective gloves are recommended.

Magnetic media

Data protection: Neodymium magnets can ruin payment cards and delicate electronics (pacemakers, medical aids, timepieces).

Magnetic interference

Navigation devices and mobile phones are highly sensitive to magnetic fields. Close proximity with a strong magnet can permanently damage the sensors in your phone.

Protective goggles

Neodymium magnets are sintered ceramics, meaning they are fragile like glass. Collision of two magnets leads to them breaking into small pieces.

Machining danger

Fire hazard: Rare earth powder is explosive. Avoid machining magnets in home conditions as this risks ignition.

Keep away from children

These products are not suitable for play. Accidental ingestion of multiple magnets may result in them pinching intestinal walls, which constitutes a severe health hazard and necessitates urgent medical intervention.

Operating temperature

Standard neodymium magnets (grade N) undergo demagnetization when the temperature exceeds 80°C. Damage is permanent.

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