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MW 30x5 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010056

GTIN/EAN: 5906301810551

5.00
Load capacity 8.71 kg / 85.42 N Magnetic Induction 196.02 mT / 1960 Gs
Diameter Ø
30 mm [±0,1 mm]
Height
5 mm [±0,1 mm]
Weight
26.51 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

technical details »

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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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Technical specification - MW 30x5 / N38 - cylindrical magnet

Specification / characteristics - MW 30x5 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010056
GTIN/EAN 5906301810551
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 30 mm [±0,1 mm]
Height 5 mm [±0,1 mm]
Weight 26.51 g
Magnetization Direction ↑ axial
Load capacity ~ ? 8.71 kg / 85.42 N
Magnetic Induction ~ ? 196.02 mT / 1960 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 30x5 / 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 - report

The following values are the direct effect of a mathematical simulation. Values rely on models for the material Nd2Fe14B. Real-world parameters might slightly deviate from the simulation results. Use these data as a supplementary guide for designers.

Table 1: Static pull force (force vs distance) - power drop
MW 30x5 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 1960 Gs
196.0 mT
 8.71 kg / 19.20 pounds
8710.0 g / 85.4 N
 medium risk
1 mm 1890 Gs
189.0 mT
 8.10 kg / 17.86 pounds
8100.7 g / 79.5 N
 medium risk
2 mm 1802 Gs
180.2 mT
 7.37 kg / 16.24 pounds
7366.2 g / 72.3 N
 medium risk
3 mm 1702 Gs
170.2 mT
 6.57 kg / 14.47 pounds
6565.7 g / 64.4 N
 medium risk
5 mm 1479 Gs
147.9 mT
 4.96 kg / 10.93 pounds
4956.4 g / 48.6 N
 medium risk
10 mm 945 Gs
94.5 mT
 2.02 kg / 4.46 pounds
2024.4 g / 19.9 N
 medium risk
15 mm 576 Gs
57.6 mT
 0.75 kg / 1.66 pounds
752.1 g / 7.4 N
 weak grip
20 mm 356 Gs
35.6 mT
 0.29 kg / 0.64 pounds
288.1 g / 2.8 N
 weak grip
30 mm 153 Gs
15.3 mT
 0.05 kg / 0.12 pounds
53.2 g / 0.5 N
 weak grip
50 mm 43 Gs
4.3 mT
 0.00 kg / 0.01 pounds
4.2 g / 0.0 N
 weak grip
Pulling power weakens drastically with every subsequent millimeter of spacing. Note that every additional insulation layer (e.g., dirt, varnish, rust) noticeably diminishes the holding power. Magnets hold optimally in perfect adhesion; distance drastically cuts the power. Analyze how flashily the load capacity drop, when the magnet does not adhere directly to the steel surface. When calculating the arrangement, avoid additional spacers.

Table 2: Slippage force (wall)
MW 30x5 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 1.74 kg / 3.84 pounds
1742.0 g / 17.1 N
1 mm Stal (~0.2) 1.62 kg / 3.57 pounds
1620.0 g / 15.9 N
2 mm Stal (~0.2) 1.47 kg / 3.25 pounds
1474.0 g / 14.5 N
3 mm Stal (~0.2) 1.31 kg / 2.90 pounds
1314.0 g / 12.9 N
5 mm Stal (~0.2) 0.99 kg / 2.19 pounds
992.0 g / 9.7 N
10 mm Stal (~0.2) 0.40 kg / 0.89 pounds
404.0 g / 4.0 N
15 mm Stal (~0.2) 0.15 kg / 0.33 pounds
150.0 g / 1.5 N
20 mm Stal (~0.2) 0.06 kg / 0.13 pounds
58.0 g / 0.6 N
30 mm Stal (~0.2) 0.01 kg / 0.02 pounds
10.0 g / 0.1 N
50 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
This section defines the approximate shear load required to start the slippage of the magnet downwards along a upright steel wall (assuming standard friction). The holding force is relative to the separation distance between the magnet and the metal.

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MW 30x5 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
2.61 kg / 5.76 pounds
2613.0 g / 25.6 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
1.74 kg / 3.84 pounds
1742.0 g / 17.1 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.87 kg / 1.92 pounds
871.0 g / 8.5 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
4.36 kg / 9.60 pounds
4355.0 g / 42.7 N
When placing a magnet on a upright surface (e.g., a fridge), it will only hold just approx. 20%-30% of its nominal power. Gravity and a low friction coefficient cause that holders move down easier than they detach. Designing a vertical fastening? Note that the shear force is significantly lower than the maximum static pull force. On a slippery surface, the element will give way down under a significantly smaller weight. Utilizing a rubberized layer can significantly improve the result.

Table 4: Steel thickness (substrate influence) - power losses
MW 30x5 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.87 kg / 1.92 pounds
871.0 g / 8.5 N
1 mm
25%
 2.18 kg / 4.80 pounds
2177.5 g / 21.4 N
2 mm
50%
 4.36 kg / 9.60 pounds
4355.0 g / 42.7 N
3 mm
75%
 6.53 kg / 14.40 pounds
6532.5 g / 64.1 N
5 mm
100%
 8.71 kg / 19.20 pounds
8710.0 g / 85.4 N
10 mm
100%
 8.71 kg / 19.20 pounds
8710.0 g / 85.4 N
11 mm
100%
 8.71 kg / 19.20 pounds
8710.0 g / 85.4 N
12 mm
100%
 8.71 kg / 19.20 pounds
8710.0 g / 85.4 N
A thin metal plate is not enough to conduct the entire magnetic field, which wastes potential of the holder. Should you attach a powerful product to a thin surface, the field will pass right through and the attraction force will be weaker. To utilize the maximum of this magnet's power, you require a sufficiently solid piece of steel. The saturation phenomenon means that on thin elements (e.g., appliance housings), the magnet works worse. We suggest choosing the steel dimension from these parameters.

Table 5: Thermal resistance (stability) - thermal limit
MW 30x5 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 8.71 kg / 19.20 pounds
8710.0 g / 85.4 N
 OK
40 °C -2.2% 8.52 kg / 18.78 pounds
8518.4 g / 83.6 N
 OK
60 °C -4.4% 8.33 kg / 18.36 pounds
8326.8 g / 81.7 N
80 °C -6.6% 8.14 kg / 17.93 pounds
8135.1 g / 79.8 N
100 °C -28.8% 6.20 kg / 13.67 pounds
6201.5 g / 60.8 N
Standard neodymium magnets change their properties strength above the temperature limit. Protect against heat – high temperature can irreversibly destroy this magnet. With increasing heat, the magnet's force briefly drops. Refrain from using this magnet in hot environments higher than its safe range. Ignoring the limit will cause permanent loss of magnetism.
*Important note: Heat tolerance depends not only on the material grade, but also on the magnet's shape. Flat magnets (low Pc) risk losing magnetic properties at lower temperatures than taller cylinders. The danger warning in the table signals a risk of irreversible loss for this particular item.

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MW 30x5 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Sliding Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 16.74 kg / 36.91 pounds
3 437 Gs
2.51 kg / 5.54 pounds
2511 g / 24.6 N
 N/A
1 mm 16.20 kg / 35.71 pounds
3 856 Gs
2.43 kg / 5.36 pounds
2429 g / 23.8 N
 14.58 kg / 32.14 pounds
~0 Gs
2 mm 15.57 kg / 34.33 pounds
3 780 Gs
2.34 kg / 5.15 pounds
2335 g / 22.9 N
 14.01 kg / 30.89 pounds
~0 Gs
3 mm 14.89 kg / 32.82 pounds
3 696 Gs
2.23 kg / 4.92 pounds
2233 g / 21.9 N
 13.40 kg / 29.54 pounds
~0 Gs
5 mm 13.40 kg / 29.54 pounds
3 507 Gs
2.01 kg / 4.43 pounds
2010 g / 19.7 N
 12.06 kg / 26.58 pounds
~0 Gs
10 mm 9.53 kg / 21.00 pounds
2 957 Gs
1.43 kg / 3.15 pounds
1429 g / 14.0 N
 8.57 kg / 18.90 pounds
~0 Gs
20 mm 3.89 kg / 8.58 pounds
1 890 Gs
0.58 kg / 1.29 pounds
584 g / 5.7 N
 3.50 kg / 7.72 pounds
~0 Gs
50 mm 0.23 kg / 0.50 pounds
458 Gs
0.03 kg / 0.08 pounds
34 g / 0.3 N
 0.21 kg / 0.45 pounds
~0 Gs
60 mm 0.10 kg / 0.23 pounds
307 Gs
0.02 kg / 0.03 pounds
15 g / 0.2 N
 0.09 kg / 0.20 pounds
~0 Gs
70 mm 0.05 kg / 0.11 pounds
213 Gs
0.01 kg / 0.02 pounds
7 g / 0.1 N
 0.04 kg / 0.10 pounds
~0 Gs
80 mm 0.03 kg / 0.06 pounds
153 Gs
0.00 kg / 0.01 pounds
4 g / 0.0 N
 0.02 kg / 0.05 pounds
~0 Gs
90 mm 0.01 kg / 0.03 pounds
113 Gs
0.00 kg / 0.00 pounds
2 g / 0.0 N
 0.01 kg / 0.03 pounds
~0 Gs
100 mm 0.01 kg / 0.02 pounds
86 Gs
0.00 kg / 0.00 pounds
1 g / 0.0 N
 0.00 kg / 0.00 pounds
~0 Gs
Two magnetic products attract each other from a significantly greater distance than a magnet and steel combination. The setup of magnet-to-magnet produces a massive flux and a wider radius of action. Planning to create a powerful holder? Utilize two neodymiums instead of one magnet and a steel. Remember that when attracting two neodymiums, the impact force is huge. The levitation is slightly lower than the attraction, but still large.
*The magnetic induction in repulsion mode reaches ~0 Gs at the midpoint between the magnets (resulting from vector opposition).
Attention: Calculations show sliding force of two identical neodymium magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Safety (HSE) (implants) - warnings
MW 30x5 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 11.0 cm
Hearing aid 10 Gs (1.0 mT) 8.5 cm
Mechanical watch 20 Gs (2.0 mT) 7.0 cm
Phone / Smartphone 40 Gs (4.0 mT) 5.5 cm
Remote 50 Gs (5.0 mT) 5.0 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 poses a real danger to IT equipment as well as pacemakers. These neodymiums produce a field that destroys function of digital equipment. Be aware: the invisible magnetic field penetrates the body and glass. Exceptional care must be exercised by people with hearing aids and drug dispensers. Also at risk are: mechanical watches, remotes, speakers, and displays. Do not place the magnet near cards, hard drives, or sensitive navigation tools.

Table 8: Dynamics (cracking risk) - warning
MW 30x5 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 22.18 km/h
(6.16 m/s)
 0.50 J
30 mm 24.28 km/h
(6.75 m/s)
 0.60 J
50 mm 24.35 km/h
(6.76 m/s)
 0.61 J
100 mm 24.36 km/h
(6.77 m/s)
 0.61 J
Magnetic elements are very brittle – a collision with steel risks their cracking. Control the attraction moment – a magnet released freely becomes dangerous. Kinetic force can trigger coating fragments or painful pinches to fingers. Always hold the magnet during installation so it doesn't hit violently against the metal. A collision at high speed almost guarantees destruction of the magnet. Use safety goggles when handling with powerful specimens.

Table 9: Anti-corrosion coating durability
MW 30x5 / 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. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Electrical data (Flux)
MW 30x5 / N38

Parameter Value SI Unit / Description
Magnetic Flux 16 658 Mx 166.6 µWb
Pc Coefficient 0.25 Low (Flat)
Total magnetic flux passing through the magnet pole. Key data for generator designers as well as sensors. Pc value determines the magnet's operating point.

Table 11: Physics of underwater searching
MW 30x5 / N38

Environment Effective steel pull Effect
Air (land) 8.71 kg Standard
Water (riverbed) 9.97 kg
(+1.26 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.
The magnetic field penetrates through water without any losses. Buoyancy helps in lifting finds.

1. Shear force

*Caution: On a vertical surface, the magnet retains just a fraction of its nominal pull.

2. Plate thickness effect

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

3. Heat tolerance

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

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.25

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.

Engineering data and GPSR

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%

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: 010056-2026
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The offered product is an extremely powerful rod magnet, composed of modern NdFeB material, which, with dimensions of Ø30x5 mm, guarantees maximum efficiency. This specific item boasts high dimensional repeatability and industrial build quality, making it an excellent solution for the most demanding engineers and designers. As a cylindrical magnet with significant force (approx. 8.71 kg), this product is available off-the-shelf from our European logistics center, ensuring lightning-fast order fulfillment. Additionally, its triple-layer Ni-Cu-Ni coating shields it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.
It finds application in DIY projects, advanced robotics, and broadly understood industry, serving as a positioning or actuating element. Thanks to the high power of 85.42 N with a weight of only 26.51 g, this cylindrical magnet is indispensable in electronics 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 chipping the coating of this precision component. To ensure stability in automation, specialized industrial adhesives are used, which do not react with the nickel coating and fill the gap, guaranteeing high repeatability of the connection.
Magnets N38 are suitable for the majority of applications in automation and machine building, where excessive miniaturization with maximum force is not required. If you need the strongest magnets in the same volume (Ø30x5), 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 30 mm and height 5 mm. The key parameter here is the lifting capacity amounting to approximately 8.71 kg (force ~85.42 N), which, with such compact dimensions, proves the high grade of the NdFeB material. The product has a [NiCuNi] coating, which secures it against oxidation, giving it an aesthetic, silvery shine.
Standardly, the magnetic axis runs through the center of the cylinder, causing the greatest attraction force to occur on the bases with a diameter of 30 mm. Such an arrangement is standard when connecting magnets in stacks (e.g., in filters) or when mounting in sockets at the bottom of a hole. On request, we can also produce versions magnetized diametrically if your project requires it.

Pros as well as cons of rare earth magnets.

Advantages

Besides their tremendous pulling force, neodymium magnets offer the following advantages:
  • They have unchanged lifting capacity, and over nearly ten years their performance decreases symbolically – ~1% (in testing),
  • They are resistant to demagnetization induced by external disturbances,
  • The use of an elegant layer of noble metals (nickel, gold, silver) causes the element to present itself better,
  • Magnetic induction on the working layer of the magnet remains strong,
  • Thanks to resistance to high temperature, they are able to function (depending on the form) even at temperatures up to 230°C and higher...
  • Thanks to the potential of free shaping and adaptation to custom requirements, magnetic components can be created in a variety of geometric configurations, which expands the range of possible applications,
  • Huge importance in electronics industry – they find application in computer drives, electric motors, medical devices, as well as other advanced devices.
  • Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in tiny dimensions, which makes them useful in compact constructions

Disadvantages

Disadvantages of NdFeB magnets:
  • Brittleness is one of their disadvantages. Upon strong impact they can fracture. We advise keeping them in a strong case, which not only protects them against impacts but also increases their durability
  • We warn that neodymium magnets can reduce their strength 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 recommend using waterproof magnets made of rubber, plastic or other material stable to moisture, when using outdoors
  • We suggest cover - magnetic mechanism, due to difficulties in producing nuts inside the magnet and complex forms.
  • Possible danger to health – tiny shards of magnets pose a threat, in case of ingestion, which gains importance in the context of child health protection. Furthermore, tiny parts of these products are able to complicate diagnosis medical in case of swallowing.
  • With large orders the cost of neodymium magnets can be a barrier,

Pull force analysis

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

Holding force of 8.71 kg is a measurement result executed under specific, ideal conditions:
  • with the contact of a sheet made of special test steel, ensuring full magnetic saturation
  • possessing a thickness of min. 10 mm to avoid saturation
  • with a plane free of scratches
  • under conditions of gap-free contact (metal-to-metal)
  • for force acting at a right angle (in the magnet axis)
  • in temp. approx. 20°C

Lifting capacity in real conditions – factors

Please note that the magnet holding may be lower depending on elements below, starting with the most relevant:
  • Air gap (between the magnet and the metal), as even a tiny clearance (e.g. 0.5 mm) results in a decrease in lifting capacity by up to 50% (this also applies to varnish, corrosion or debris).
  • Pull-off angle – note that the magnet has greatest strength perpendicularly. Under shear forces, the holding force drops drastically, often to levels of 20-30% of the nominal value.
  • Substrate thickness – to utilize 100% power, the steel must be sufficiently thick. Paper-thin metal restricts the lifting capacity (the magnet "punches through" it).
  • Steel grade – the best choice is pure iron steel. Hardened steels may have worse magnetic properties.
  • Surface finish – ideal contact is possible only on polished steel. Any scratches and bumps create air cushions, reducing force.
  • Thermal factor – hot environment weakens magnetic field. Exceeding the limit temperature can permanently damage the magnet.

Holding force was checked on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, whereas under shearing force the load capacity is reduced by as much as 75%. Additionally, even a minimal clearance between the magnet and the plate lowers the lifting capacity.

Warnings
Dust is flammable

Dust generated during grinding of magnets is self-igniting. Avoid drilling into magnets unless you are an expert.

Medical interference

Medical warning: Strong magnets can turn off pacemakers and defibrillators. Do not approach if you have electronic implants.

Electronic hazard

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

Handling rules

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

Bone fractures

Risk of injury: The pulling power is so immense that it can result in blood blisters, crushing, and even bone fractures. Use thick gloves.

Allergy Warning

Nickel alert: The Ni-Cu-Ni coating contains nickel. If skin irritation appears, cease handling magnets and use protective gear.

Impact on smartphones

Navigation devices and mobile phones are extremely sensitive to magnetic fields. Direct contact with a strong magnet can ruin the sensors in your phone.

Permanent damage

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

Magnets are brittle

Despite metallic appearance, neodymium is delicate and cannot withstand shocks. Avoid impacts, as the magnet may crumble into sharp, dangerous pieces.

This is not a toy

Only for adults. Small elements can be swallowed, causing intestinal necrosis. Store out of reach of children and animals.

Danger! Looking for details? Read our article: Are neodymium magnets dangerous?