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MP 62x42x25 / N38 - ring magnet

ring magnet

Catalog no 030205

GTIN/EAN: 5906301812227

5.00
Load capacity 58.67 kg / 575.60 N Magnetic Induction 389.14 mT / 3891 Gs
Diameter
62 mm [±0,1 mm]
internal diameter Ø
42 mm [±0,1 mm]
Height
25 mm [±0,1 mm]
Weight
306.31 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

see specifications »

134.15 zł net / pcs

165.00 zł with VAT (23% VAT) / pcs

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134.15 zł
165.00 zł
price from 5 pcs
126.10 zł
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145.20 zł

Frequently asked questions

What is the hole in a ring magnet for?
For mounting on a screw or a shaft. The bore may be cylindrical or countersunk for a screw head. The hole removes magnet volume, so a ring holds less than a disc of the same outside diameter.
What is the polarisation?
Axial as standard — poles on the flat faces of the ring. Diametrical polarisation is made to order.
What sizes are available?
Outside diameter from 5 to 62 mm from stock. To order up to 200 mm outside diameter, 180 mm bore and 40 mm height, with a lead time of 25–35 days.

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 details - MP 62x42x25 / N38 - ring magnet

Specification / characteristics - MP 62x42x25 / N38 - ring magnet

properties
properties values
Cat. no. 030205
GTIN/EAN 5906301812227
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 62 mm [±0,1 mm]
internal diameter Ø 42 mm [±0,1 mm]
Height 25 mm [±0,1 mm]
Weight 306.31 g
Magnetization Direction ↑ axial
Load capacity ~ ? 58.67 kg / 575.60 N
Magnetic Induction ~ ? 389.14 mT / 3891 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MP 62x42x25 / N38 - ring magnet
properties values units
remenance Br [min. - max.] ? 12.2-12.6 kGs
remenance Br [min. - max.] ? 1220-1260 mT
coercivity bHc ? 10.8-11.5 kOe
coercivity bHc ? 860-915 kA/m
actual internal force iHc ≥ 12 kOe
actual internal force iHc ≥ 955 kA/m
energy density [min. - max.] ? 36-38 BH max MGOe
energy density [min. - max.] ? 287-303 BH max KJ/m
max. temperature ? ≤ 80 °C

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C
properties values units
Vickers hardness ≥550 Hv
Density ≥7.4 g/cm3
Curie Temperature TC 310 °C
Curie Temperature TF 590 °F
Specific resistance 150 μΩ⋅cm
Bending strength 250 MPa
Compressive strength 1000~1100 MPa
Thermal expansion parallel (∥) to orientation (M) (3-4) x 10-6 °C-1
Thermal expansion perpendicular (⊥) to orientation (M) -(1-3) x 10-6 °C-1
Young's modulus 1.7 x 104 kg/mm²

Technical analysis of the assembly - technical parameters

Presented values constitute the outcome of a mathematical simulation. Results were calculated on models for the class Nd2Fe14B. Real-world conditions might slightly differ. Please consider these data as a preliminary roadmap for designers.

Table 1: Static pull force (pull vs distance) - characteristics
MP 62x42x25 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 4472 Gs
447.2 mT
 58.67 kg / 129.35 LBS
58670.0 g / 575.6 N
 crushing
1 mm 4338 Gs
433.8 mT
 55.21 kg / 121.72 LBS
55213.2 g / 541.6 N
 crushing
2 mm 4201 Gs
420.1 mT
 51.77 kg / 114.13 LBS
51768.5 g / 507.8 N
 crushing
3 mm 4061 Gs
406.1 mT
 48.39 kg / 106.69 LBS
48394.9 g / 474.8 N
 crushing
5 mm 3781 Gs
378.1 mT
 41.94 kg / 92.47 LBS
41942.4 g / 411.5 N
 crushing
10 mm 3097 Gs
309.7 mT
 28.15 kg / 62.06 LBS
28148.0 g / 276.1 N
 crushing
15 mm 2485 Gs
248.5 mT
 18.12 kg / 39.94 LBS
18118.5 g / 177.7 N
 crushing
20 mm 1972 Gs
197.2 mT
 11.41 kg / 25.16 LBS
11412.7 g / 112.0 N
 crushing
30 mm 1239 Gs
123.9 mT
 4.51 kg / 9.93 LBS
4505.2 g / 44.2 N
 strong
50 mm 533 Gs
53.3 mT
 0.83 kg / 1.84 LBS
832.4 g / 8.2 N
 weak grip
Magnetic force weakens drastically with every subsequent millimeter of distance. Keep in mind that even a microscopic distance (e.g., dirt, varnish, dust) noticeably diminishes the holding power. Neodymiums hold strongest in perfect adhesion; air break weakens the force. See how quickly the load capacity drop, when the product does not adhere directly to the metal substrate. When planning the assembly, discard additional spacers.

Table 2: Slippage hold (vertical surface)
MP 62x42x25 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 11.73 kg / 25.87 LBS
11734.0 g / 115.1 N
1 mm Stal (~0.2) 11.04 kg / 24.34 LBS
11042.0 g / 108.3 N
2 mm Stal (~0.2) 10.35 kg / 22.83 LBS
10354.0 g / 101.6 N
3 mm Stal (~0.2) 9.68 kg / 21.34 LBS
9678.0 g / 94.9 N
5 mm Stal (~0.2) 8.39 kg / 18.49 LBS
8388.0 g / 82.3 N
10 mm Stal (~0.2) 5.63 kg / 12.41 LBS
5630.0 g / 55.2 N
15 mm Stal (~0.2) 3.62 kg / 7.99 LBS
3624.0 g / 35.6 N
20 mm Stal (~0.2) 2.28 kg / 5.03 LBS
2282.0 g / 22.4 N
30 mm Stal (~0.2) 0.90 kg / 1.99 LBS
902.0 g / 8.8 N
50 mm Stal (~0.2) 0.17 kg / 0.37 LBS
166.0 g / 1.6 N
This section presents the estimated shear load sufficient to start the shifting of the magnet downwards on a upright steel plate (assuming standard friction coefficient). This parameter varies with the gap size between the magnet and the metal.

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MP 62x42x25 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
17.60 kg / 38.80 LBS
17601.0 g / 172.7 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
11.73 kg / 25.87 LBS
11734.0 g / 115.1 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
5.87 kg / 12.93 LBS
5867.0 g / 57.6 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
29.34 kg / 64.67 LBS
29335.0 g / 287.8 N
When placing a magnet on a upright plane (e.g., a fridge), it will only hold barely approx. 1/5 of nominal attraction strength. Gravitational force and a weak degree of grip mean that magnets move down easier than they detach. Want to create a wall mount? Consider that the shear force is noticeably lower than the perpendicular breakaway force. On a smooth steel, the element will give way down under a significantly smaller weight. Using a rubber pad can drastically improve the result.

Table 4: Material efficiency (substrate influence) - sheet metal selection
MP 62x42x25 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
3%
 1.96 kg / 4.31 LBS
1955.7 g / 19.2 N
1 mm
8%
 4.89 kg / 10.78 LBS
4889.2 g / 48.0 N
2 mm
17%
 9.78 kg / 21.56 LBS
9778.3 g / 95.9 N
3 mm
25%
 14.67 kg / 32.34 LBS
14667.5 g / 143.9 N
5 mm
42%
 24.45 kg / 53.89 LBS
24445.8 g / 239.8 N
10 mm
83%
 48.89 kg / 107.79 LBS
48891.7 g / 479.6 N
11 mm
92%
 53.78 kg / 118.57 LBS
53780.8 g / 527.6 N
12 mm
100%
 58.67 kg / 129.35 LBS
58670.0 g / 575.6 N
A thin metal plate is incapable of focus the full magnetic flux, which weakens actual performance of the holder. Should you mount a strong magnet to a too thin substrate, the flux will penetrate right through and the holding will be smaller. To squeeze the maximum of this neodymium's power, you need a suitably thick piece of metal. The material oversaturation means that on delicate walls (e.g., appliance housings), the magnet works worse. We advise picking the steel dimension from these parameters.

Table 5: Working in heat (stability) - resistance threshold
MP 62x42x25 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 58.67 kg / 129.35 LBS
58670.0 g / 575.6 N
 OK
40 °C -2.2% 57.38 kg / 126.50 LBS
57379.3 g / 562.9 N
 OK
60 °C -4.4% 56.09 kg / 123.65 LBS
56088.5 g / 550.2 N
 OK
80 °C -6.6% 54.80 kg / 120.81 LBS
54797.8 g / 537.6 N
100 °C -28.8% 41.77 kg / 92.09 LBS
41773.0 g / 409.8 N
Ordinary NdFeB products irreversibly lose parameters after exceeding the maximum temperature. Watch out for overheating – excessive heat can irreversibly damage this product. With every degree above norm, the magnet's force briefly lowers. Do not use this product near heat sources higher than its operating temperature limit. Too high temperature will result in irreversible degradation of magnetic properties.
*Technical advisory: Temperature resistance is determined by both grade, but also on the magnet's shape. Low-profile magnets (low permeance coefficient) are more susceptible to demagnetization under lower heat stress than long magnets. Red status in the table points to permanent field degradation for this particular item.

Table 6: Two magnets (repulsion) - field range
MP 62x42x25 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Sliding Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 264.93 kg / 584.07 LBS
5 588 Gs
39.74 kg / 87.61 LBS
39740 g / 389.8 N
 N/A
1 mm 257.19 kg / 567.00 LBS
8 812 Gs
38.58 kg / 85.05 LBS
38578 g / 378.4 N
 231.47 kg / 510.30 LBS
~0 Gs
2 mm 249.32 kg / 549.66 LBS
8 676 Gs
37.40 kg / 82.45 LBS
37398 g / 366.9 N
 224.39 kg / 494.69 LBS
~0 Gs
3 mm 241.51 kg / 532.44 LBS
8 539 Gs
36.23 kg / 79.87 LBS
36227 g / 355.4 N
 217.36 kg / 479.19 LBS
~0 Gs
5 mm 226.10 kg / 498.47 LBS
8 262 Gs
33.92 kg / 74.77 LBS
33915 g / 332.7 N
 203.49 kg / 448.62 LBS
~0 Gs
10 mm 189.40 kg / 417.55 LBS
7 562 Gs
28.41 kg / 62.63 LBS
28409 g / 278.7 N
 170.46 kg / 375.79 LBS
~0 Gs
20 mm 127.11 kg / 280.22 LBS
6 195 Gs
19.07 kg / 42.03 LBS
19066 g / 187.0 N
 114.40 kg / 252.20 LBS
~0 Gs
50 mm 32.28 kg / 71.17 LBS
3 122 Gs
4.84 kg / 10.68 LBS
4843 g / 47.5 N
 29.06 kg / 64.06 LBS
~0 Gs
60 mm 20.34 kg / 44.85 LBS
2 478 Gs
3.05 kg / 6.73 LBS
3052 g / 29.9 N
 18.31 kg / 40.36 LBS
~0 Gs
70 mm 12.99 kg / 28.63 LBS
1 980 Gs
1.95 kg / 4.29 LBS
1948 g / 19.1 N
 11.69 kg / 25.77 LBS
~0 Gs
80 mm 8.43 kg / 18.59 LBS
1 595 Gs
1.26 kg / 2.79 LBS
1265 g / 12.4 N
 7.59 kg / 16.73 LBS
~0 Gs
90 mm 5.58 kg / 12.29 LBS
1 298 Gs
0.84 kg / 1.84 LBS
836 g / 8.2 N
 5.02 kg / 11.06 LBS
~0 Gs
100 mm 3.76 kg / 8.29 LBS
1 065 Gs
0.56 kg / 1.24 LBS
564 g / 5.5 N
 3.38 kg / 7.46 LBS
~0 Gs
Two magnets attract each other from a much further distance than a magnet and steel setup. The setup of two magnets generates a stronger field and a larger range of operation. Want to build a powerful holder? Apply two magnets instead of a neodymium and a steel. Remember that when connecting a pair of magnets, the pinch force is huge. The repulsion force is marginally weaker than the attraction, but still large.
*Field value for N-N configuration reaches ~0 Gs at the midpoint of the gap (caused by magnetic field nullification).
Important: Figures demonstrate friction force of a pair of same magnets (friction ~0.15 for Ni-Ni layer).

Table 7: Safety (HSE) (implants) - warnings
MP 62x42x25 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 32.5 cm
Hearing aid 10 Gs (1.0 mT) 25.5 cm
Mechanical watch 20 Gs (2.0 mT) 20.0 cm
Phone / Smartphone 40 Gs (4.0 mT) 15.5 cm
Remote 50 Gs (5.0 mT) 14.0 cm
Payment card 400 Gs (40.0 mT) 6.0 cm
HDD hard drive 600 Gs (60.0 mT) 5.0 cm
Extremely neodym field is a large risk to electronics as well as medical implants. These NdFeB products generate a flux that destroys function of sensitive medical devices. Be aware: the invisible magnetic field acts through matter and glass. Special caution must be taken by people with hearing aids and drug dispensers. Also at risk are: mechanical watches, car keys, speakers, and screens. Do not bring the product near payment cards, hard drives, or sensitive navigation tools.

Table 8: Impact energy (cracking risk) - warning
MP 62x42x25 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 18.77 km/h
(5.21 m/s)
 4.16 J
30 mm 23.85 km/h
(6.63 m/s)
 6.72 J
50 mm 24.58 km/h
(6.83 m/s)
 7.14 J
100 mm 24.78 km/h
(6.88 m/s)
 7.26 J
Neodymium magnets are delicate – a collision with steel causes immediate chipping. Watch the impact speed – a neodymium left loose speeds with massive force. Impact energy can cause material chips or painful pinches to fingers. Be sure to control the product during bringing near metal so it doesn't slam with momentum against the metal. A collision at high speed means shattering of the magnet. Wear safety glasses when working with large magnets.

Table 9: Surface protection spec
MP 62x42x25 / 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: Construction data (Flux)
MP 62x42x25 / N38

Parameter Value SI Unit / Description
Magnetic Flux 100 906 Mx 1009.1 µWb
Pc Coefficient 0.64 High (Stable)
Total magnetic flux emitted by the magnet pole. Key data for generator designers and motors. The Pc coefficient determines the working geometry.

Table 11: Submerged application
MP 62x42x25 / N38

Environment Effective steel pull Effect
Air (land) 58.67 kg Standard
Water (riverbed) 67.18 kg
(+8.51 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!
Contrary to myths, water does not block the magnetic field. However, remember the water resistance when pulling the rope quickly.

1. Wall mount (shear)

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

2. Efficiency vs thickness

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

3. Power loss vs temp

*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) = 0.64

The chart above illustrates the magnetic characteristics of the material within the second quadrant of the hysteresis loop. The solid red line represents the demagnetization curve (material potential), while the dashed blue line is the load line based on the magnet's geometry. The Pc (Permeance Coefficient), also known as the load line slope, is a dimensionless value that describes the relationship between the magnet's shape and its magnetic stability. The intersection of these two lines (the black dot) is the operating point — it determines the actual magnetic flux density generated by the magnet in this specific configuration. A higher Pc value means the magnet is more 'slender' (tall relative to its area), resulting in a higher operating point and better resistance to irreversible demagnetization caused by external fields or temperature. A value of 0.42 is relatively low (typical for flat magnets), meaning the operating point is closer to the 'knee' of the curve — caution is advised when operating at temperatures near the maximum limit to avoid strength loss.

Technical specification and ecology

Chemical composition

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: 030205-2026
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It is ideally suited for places where solid attachment of the magnet to the substrate is required without the risk of detachment. Thanks to the hole (often for a screw), this model enables quick installation to wood, wall, plastic, or metal. It is also often used in advertising for fixing signs and in workshops for organizing tools.
This is a crucial issue when working with model MP 62x42x25 / N38. Neodymium magnets are sintered ceramics, which means they are very brittle and inelastic. When tightening the screw, you must maintain great sensitivity. We recommend tightening manually with a screwdriver, not an impact driver, because too much pressure will cause the ring to crack. The flat screw head should evenly press the magnet. Remember: cracking during assembly results from material properties, not a product defect.
These magnets are coated with standard Ni-Cu-Ni plating, which protects them in indoor conditions, but does not ensure full waterproofing. Damage to the protective layer during assembly is the most common cause of rusting. This product is dedicated for inside building use. For outdoor applications, we recommend choosing rubberized holders or additional protection with varnish.
A screw or bolt with a thread diameter smaller than 42 mm fits this model. For magnets with a straight hole, a conical head can act like a wedge and burst the magnet. Always check that the screw head is not larger than the outer diameter of the magnet (62 mm), so it doesn't protrude beyond the outline.
This model is characterized by dimensions Ø62x25 mm and a weight of 306.31 g. The pulling force of this model is an impressive 58.67 kg, which translates to 575.60 N in newtons. The mounting hole diameter is precisely 42 mm.
These magnets are magnetized axially (through the thickness), which means one flat side is the N pole and the other is S. If you want two such magnets screwed with cones facing each other (faces) to attract, you must connect them with opposite poles (N to S). We do not offer paired sets with marked poles in this category, but they are easy to match manually.

Pros as well as cons of rare earth magnets.

Benefits

Besides their durability, neodymium magnets are valued for these benefits:
  • They do not lose magnetism, even during approximately ten years – the reduction in strength is only ~1% (theoretically),
  • They do not lose their magnetic properties even under close interference source,
  • The use of an elegant coating of noble metals (nickel, gold, silver) causes the element to have aesthetics,
  • Neodymium magnets ensure maximum magnetic induction on a contact point, which increases force concentration,
  • Thanks to resistance to high temperature, they are able to function (depending on the shape) even at temperatures up to 230°C and higher...
  • In view of the potential of free shaping and adaptation to individualized projects, neodymium magnets can be modeled in a broad palette of forms and dimensions, which amplifies use scope,
  • Universal use in future technologies – they are commonly used in data components, drive modules, advanced medical instruments, also industrial machines.
  • Thanks to efficiency per cm³, small magnets offer high operating force, in miniature format,

Weaknesses

Drawbacks and weaknesses of neodymium magnets: weaknesses and usage proposals
  • At very strong impacts they can crack, therefore we advise placing them in special holders. A metal housing provides additional protection against damage and increases the magnet's durability.
  • When exposed to high temperature, neodymium magnets experience a drop in power. Often, when the temperature exceeds 80°C, their power decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
  • Magnets exposed to a humid environment can rust. Therefore when using outdoors, we advise using water-impermeable magnets made of rubber, plastic or other material resistant to moisture
  • Due to limitations in realizing nuts and complicated forms in magnets, we recommend using casing - magnetic mount.
  • Potential hazard related to microscopic parts of magnets can be dangerous, in case of ingestion, which is particularly important in the context of child health protection. Furthermore, small components of these magnets are able to disrupt the diagnostic process 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 can limit application in large quantities

Lifting parameters

Maximum magnetic pulling force – what contributes to it?

Breakaway force was defined for ideal contact conditions, including:
  • using a plate made of high-permeability steel, functioning as a circuit closing element
  • possessing a thickness of minimum 10 mm to avoid saturation
  • characterized by lack of roughness
  • without any air gap between the magnet and steel
  • under axial application of breakaway force (90-degree angle)
  • in temp. approx. 20°C

Impact of factors on magnetic holding capacity in practice

Real force is affected by specific conditions, mainly (from priority):
  • Space between surfaces – even a fraction of a millimeter of distance (caused e.g. by veneer or dirt) drastically reduces the pulling force, often by half at just 0.5 mm.
  • Force direction – note that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the nominal value.
  • Plate thickness – too thin steel does not accept the full field, causing part of the flux to be escaped into the air.
  • Material composition – not every steel reacts the same. High carbon content worsen the interaction with the magnet.
  • Smoothness – ideal contact is possible only on polished steel. Rough texture reduce the real contact area, reducing force.
  • Thermal environment – temperature increase causes a temporary drop of induction. It is worth remembering the thermal limit for a given model.

Lifting capacity was assessed using a steel plate with a smooth surface of suitable thickness (min. 20 mm), under vertically applied force, in contrast under shearing force the holding force is lower. Additionally, even a small distance between the magnet’s surface and the plate reduces the load capacity.

Safety rules for work with neodymium magnets
Caution required

Before use, read the rules. Uncontrolled attraction can destroy the magnet or hurt your hand. Be predictive.

Magnet fragility

Neodymium magnets are sintered ceramics, which means they are very brittle. Collision of two magnets will cause them cracking into shards.

Do not give to children

NdFeB magnets are not suitable for play. Accidental ingestion of a few magnets can lead to them pinching intestinal walls, which poses a critical condition and requires immediate surgery.

Nickel coating and allergies

Studies show that nickel (standard magnet coating) is a potent allergen. If you have an allergy, prevent direct skin contact or opt for encased magnets.

Fire warning

Drilling and cutting of neodymium magnets carries a risk of fire risk. Magnetic powder reacts violently with oxygen and is hard to extinguish.

Phone sensors

Be aware: neodymium magnets produce a field that confuses precision electronics. Maintain a safe distance from your mobile, tablet, and navigation systems.

Operating temperature

Regular neodymium magnets (grade N) lose magnetization when the temperature exceeds 80°C. This process is irreversible.

Pacemakers

For implant holders: Strong magnetic fields affect medical devices. Maintain minimum 30 cm distance or ask another person to handle the magnets.

Electronic hazard

Do not bring magnets close to a wallet, laptop, or TV. The magnetism can destroy these devices and wipe information from cards.

Bodily injuries

Protect your hands. Two large magnets will snap together instantly with a force of several hundred kilograms, destroying everything in their path. Exercise extreme caution!

Safety First! More info about risks in the article: Magnet Safety Guide.