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MPL 40x15x5x2[7/3.5] / N38 - lamellar magnet

lamellar magnet

Catalog no 020154

GTIN/EAN: 5906301811602

5.00

length

40 mm [±0,1 mm]

Width

15 mm [±0,1 mm]

Height

5 mm [±0,1 mm]

Weight

22.5 g

Magnetization Direction

↑ axial

Load capacity

11.35 kg / 111.37 N

Magnetic Induction

249.11 mT / 2491 Gs

Coating

[NiCuNi] Nickel

product specifications »

15.07 ZŁ with VAT / pcs + price for transport

12.25 ZŁ net + 23% VAT / pcs

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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.

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Detailed specification - MPL 40x15x5x2[7/3.5] / N38 - lamellar magnet

Specification / characteristics - MPL 40x15x5x2[7/3.5] / N38 - lamellar magnet

properties
properties values
Cat. no. 020154
GTIN/EAN 5906301811602
Production/Distribution Dhit sp. z o.o.
ul. Zielona 14 05-850 Ożarów Mazowiecki PL
Country of origin Poland / China / Germany
Customs code 85059029
length 40 mm [±0,1 mm]
Width 15 mm [±0,1 mm]
Height 5 mm [±0,1 mm]
Weight 22.5 g
Magnetization Direction ↑ axial
Load capacity ~ ? 11.35 kg / 111.37 N
Magnetic Induction ~ ? 249.11 mT / 2491 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 40x15x5x2[7/3.5] / N38 - lamellar 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 312 - 380 °C
Curie Temperature TF 593 - 716 °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 - technical parameters

These values are the direct effect of a mathematical calculation. Results were calculated on models for the material Nd2Fe14B. Operational performance may deviate from the simulation results. Please consider these data as a supplementary guide when designing systems.

Table 1: Static force (pull vs distance) - interaction chart
MPL 40x15x5x2[7/3.5] / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 2490 Gs
249.0 mT
 11.35 kg / 25.02 LBS
11350.0 g / 111.3 N
 crushing
1 mm 2306 Gs
230.6 mT
 9.73 kg / 21.45 LBS
9731.3 g / 95.5 N
 strong
2 mm 2095 Gs
209.5 mT
 8.03 kg / 17.70 LBS
8028.8 g / 78.8 N
 strong
3 mm 1877 Gs
187.7 mT
 6.45 kg / 14.21 LBS
6445.4 g / 63.2 N
 strong
5 mm 1472 Gs
147.2 mT
 3.97 kg / 8.74 LBS
3965.1 g / 38.9 N
 strong
10 mm 792 Gs
79.2 mT
 1.15 kg / 2.53 LBS
1147.1 g / 11.3 N
 weak grip
15 mm 454 Gs
45.4 mT
 0.38 kg / 0.83 LBS
376.9 g / 3.7 N
 weak grip
20 mm 278 Gs
27.8 mT
 0.14 kg / 0.31 LBS
141.4 g / 1.4 N
 weak grip
30 mm 122 Gs
12.2 mT
 0.03 kg / 0.06 LBS
27.0 g / 0.3 N
 weak grip
50 mm 35 Gs
3.5 mT
 0.00 kg / 0.01 LBS
2.3 g / 0.0 N
 weak grip
Pulling power weakens drastically with every mm of distance. Remember that even a very thin break (e.g., dirt, paint, dust) strongly reduces the pull force. Neodymiums work optimally during direct contact; air break weakens the power. Analyze how flashily the load capacity fall, when the product does not touch flatly to the steel surface. When planning the arrangement, discard redundant distances.

Table 2: Sliding capacity (vertical surface)
MPL 40x15x5x2[7/3.5] / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 2.27 kg / 5.00 LBS
2270.0 g / 22.3 N
1 mm Stal (~0.2) 1.95 kg / 4.29 LBS
1946.0 g / 19.1 N
2 mm Stal (~0.2) 1.61 kg / 3.54 LBS
1606.0 g / 15.8 N
3 mm Stal (~0.2) 1.29 kg / 2.84 LBS
1290.0 g / 12.7 N
5 mm Stal (~0.2) 0.79 kg / 1.75 LBS
794.0 g / 7.8 N
10 mm Stal (~0.2) 0.23 kg / 0.51 LBS
230.0 g / 2.3 N
15 mm Stal (~0.2) 0.08 kg / 0.17 LBS
76.0 g / 0.7 N
20 mm Stal (~0.2) 0.03 kg / 0.06 LBS
28.0 g / 0.3 N
30 mm Stal (~0.2) 0.01 kg / 0.01 LBS
6.0 g / 0.1 N
50 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
The following data presents the theoretical force needed to start the shifting of the magnet down on a vertical steel plate (considering typical friction). This value is a function of the gap size between the magnet and the metal.

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MPL 40x15x5x2[7/3.5] / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
3.41 kg / 7.51 LBS
3405.0 g / 33.4 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
2.27 kg / 5.00 LBS
2270.0 g / 22.3 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
1.14 kg / 2.50 LBS
1135.0 g / 11.1 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
5.68 kg / 12.51 LBS
5675.0 g / 55.7 N
When placing a magnet on a upright plane (e.g., a fridge), it you can count on only about 1/5 of its maximum pull force. Gravity and a weak degree of grip mean that products slip easier than they detach. Designing a hanger? Consider that the sliding force is significantly lower than the maximum static pull force. On a slippery surface, the magnet will slide down under a noticeably lighter weight. Using a rubber layer can drastically improve the result.

Table 4: Material efficiency (substrate influence) - power losses
MPL 40x15x5x2[7/3.5] / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
5%
 0.57 kg / 1.25 LBS
567.5 g / 5.6 N
1 mm
13%
 1.42 kg / 3.13 LBS
1418.8 g / 13.9 N
2 mm
25%
 2.84 kg / 6.26 LBS
2837.5 g / 27.8 N
3 mm
38%
 4.26 kg / 9.38 LBS
4256.3 g / 41.8 N
5 mm
63%
 7.09 kg / 15.64 LBS
7093.8 g / 69.6 N
10 mm
100%
 11.35 kg / 25.02 LBS
11350.0 g / 111.3 N
11 mm
100%
 11.35 kg / 25.02 LBS
11350.0 g / 111.3 N
12 mm
100%
 11.35 kg / 25.02 LBS
11350.0 g / 111.3 N
A thin metal plate cannot absorb the full magnetic flux, which wastes potential of the magnet. Should you install a neodymium to a weak sheet, the magnetism will pass right through and the holding will be smaller. To achieve the maximum of this neodymium's potential, you need a suitably thick element of metal. The material oversaturation means that on thin elements (e.g., thin profiles), the product shows lower pull force. We advise picking the steel dimension from these parameters.

Table 5: Thermal stability (material behavior) - resistance threshold
MPL 40x15x5x2[7/3.5] / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 11.35 kg / 25.02 LBS
11350.0 g / 111.3 N
 OK
40 °C -2.2% 11.10 kg / 24.47 LBS
11100.3 g / 108.9 N
 OK
60 °C -4.4% 10.85 kg / 23.92 LBS
10850.6 g / 106.4 N
80 °C -6.6% 10.60 kg / 23.37 LBS
10600.9 g / 104.0 N
100 °C -28.8% 8.08 kg / 17.82 LBS
8081.2 g / 79.3 N
Ordinary NdFeB products lose power past the thermal threshold. Protect against heat – excessive heat can permanently destroy this magnet. With every degree above norm, the magnet's power momentarily drops. Do not use this magnet near heat sources exceeding its safe range. Ignoring the limit will lead to irreversible degradation of magnetism.
*Engineering note: Thermal stability depends not only on the material grade, as well as the dimension ratios. Thin magnets (low Pc) are more susceptible to demagnetization at lower temperatures than taller cylinders. The danger warning in the table signals permanent field degradation for this particular item.

Table 6: Two magnets (attraction) - field collision
MPL 40x15x5x2[7/3.5] / N38

Gap (mm) Attraction (kg/lbs) (N-S) Sliding Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 22.94 kg / 50.58 LBS
3 961 Gs
3.44 kg / 7.59 LBS
3441 g / 33.8 N
 N/A
1 mm 21.37 kg / 47.11 LBS
4 807 Gs
3.21 kg / 7.07 LBS
3205 g / 31.4 N
 19.23 kg / 42.40 LBS
~0 Gs
2 mm 19.67 kg / 43.37 LBS
4 612 Gs
2.95 kg / 6.50 LBS
2951 g / 28.9 N
 17.70 kg / 39.03 LBS
~0 Gs
3 mm 17.94 kg / 39.55 LBS
4 404 Gs
2.69 kg / 5.93 LBS
2691 g / 26.4 N
 16.15 kg / 35.59 LBS
~0 Gs
5 mm 14.58 kg / 32.15 LBS
3 971 Gs
2.19 kg / 4.82 LBS
2187 g / 21.5 N
 13.12 kg / 28.93 LBS
~0 Gs
10 mm 8.01 kg / 17.67 LBS
2 944 Gs
1.20 kg / 2.65 LBS
1202 g / 11.8 N
 7.21 kg / 15.90 LBS
~0 Gs
20 mm 2.32 kg / 5.11 LBS
1 583 Gs
0.35 kg / 0.77 LBS
348 g / 3.4 N
 2.09 kg / 4.60 LBS
~0 Gs
50 mm 0.12 kg / 0.26 LBS
359 Gs
0.02 kg / 0.04 LBS
18 g / 0.2 N
 0.11 kg / 0.24 LBS
~0 Gs
60 mm 0.05 kg / 0.12 LBS
243 Gs
0.01 kg / 0.02 LBS
8 g / 0.1 N
 0.05 kg / 0.11 LBS
~0 Gs
70 mm 0.03 kg / 0.06 LBS
171 Gs
0.00 kg / 0.01 LBS
4 g / 0.0 N
 0.02 kg / 0.05 LBS
~0 Gs
80 mm 0.01 kg / 0.03 LBS
124 Gs
0.00 kg / 0.00 LBS
2 g / 0.0 N
 0.01 kg / 0.03 LBS
~0 Gs
90 mm 0.01 kg / 0.02 LBS
92 Gs
0.00 kg / 0.00 LBS
1 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
100 mm 0.00 kg / 0.01 LBS
70 Gs
0.00 kg / 0.00 LBS
1 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
Two magnets attract each other from a significantly greater distance than a neodymium and metal setup. Such a system of two magnets creates a more powerful interaction and a wider radius of performance. Want to build a powerful holder? Utilize two neodymiums instead of one magnet and a striker plate. Be careful that when connecting a pair of magnets, the impact force is huge. The levitation is a bit weaker than the attraction, but still significant.
*The magnetic induction between like poles reaches ~0 Gs in the exact middle between the magnets (due to field cancellation).
Attention: Results demonstrate sliding force of dual identical neodymium magnets (friction ~0.15 for Ni-Ni layer).

Table 7: Safety (HSE) (electronics) - warnings
MPL 40x15x5x2[7/3.5] / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 10.5 cm
Hearing aid 10 Gs (1.0 mT) 8.0 cm
Mechanical watch 20 Gs (2.0 mT) 6.5 cm
Phone / Smartphone 40 Gs (4.0 mT) 5.0 cm
Remote 50 Gs (5.0 mT) 4.5 cm
Payment card 400 Gs (40.0 mT) 2.0 cm
HDD hard drive 600 Gs (60.0 mT) 1.5 cm
Powerful magnet radiation is a real danger to electronics and pacemakers. These magnets produce a flux that prevents correct functioning of sensitive medical devices. Be aware: the unseen radiation passes through tissues and glass. Exceptional care must be exercised by people with hearing aids and insulin pumps. The risk also applies to: automatic timepieces, car keys, speakers, and displays. Do not bring the product near payment cards, HDD media, or sensitive navigation tools.

Table 8: Collisions (cracking risk) - collision effects
MPL 40x15x5x2[7/3.5] / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 24.04 km/h
(6.68 m/s)
 0.50 J
30 mm 39.29 km/h
(10.91 m/s)
 1.34 J
50 mm 50.66 km/h
(14.07 m/s)
 2.23 J
100 mm 71.63 km/h
(19.90 m/s)
 4.45 J
Magnetic elements are very brittle – a violent impact against metal can result in shattering. Pay attention to connection velocity – a neodymium left loose speeds with massive force. Impact energy can destroy the magnet or painful pinches to fingers. Be sure to control the product during installation so it doesn't hit with great force against the steel surface. A collision at high speed almost guarantees destruction of the neodymium. Use safety goggles when working with powerful specimens.

Table 9: Coating parameters (durability)
MPL 40x15x5x2[7/3.5] / 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. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Electrical data (Flux)
MPL 40x15x5x2[7/3.5] / N38

Parameter Value SI Unit / Description
Magnetic Flux 14 969 Mx 149.7 µWb
Pc Coefficient 0.26 Low (Flat)
Total magnetic flux passing through the magnet pole. Essential parameter in coil applications and motors. Pc value defines the magnet's operating point.

Table 11: Physics of underwater searching
MPL 40x15x5x2[7/3.5] / N38

Environment Effective steel pull Effect
Air (land) 11.35 kg Standard
Water (riverbed) 13.00 kg
(+1.65 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.
Contrary to myths, water does not block the magnetic field. However, remember the water resistance when pulling the rope quickly.
1. Wall mount (shear)

*Warning: On a vertical wall, the magnet holds just approx. 20-30% of its max power.

2. Steel saturation

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

3. Temperature resistance

*For standard magnets, the max working temp is 80°C.

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.26

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
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: 020154-2026
Measurement Calculator
Magnet pull force
Field Strength
Insert a number in a box, and all other values will convert instantly.

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This product is an extremely strong magnet in the shape of a plate made of NdFeB material, which, with dimensions of 40x15x5 mm and a weight of 22.5 g, guarantees premium class connection. This rectangular block with a force of 111.37 N is ready for shipment in 24h, allowing for rapid realization of your project. The durable anti-corrosion layer ensures a long lifespan in a dry environment, protecting the core from oxidation.
The key to success is shifting the magnets along their largest connection plane (using e.g., the edge of a table), which is easier than trying to tear them apart directly. Watch your fingers! Magnets with a force of 11.35 kg can pinch very hard and cause hematomas. Never use metal tools for prying, as the brittle NdFeB material may chip and damage your eyes.
Plate magnets MPL 40x15x5x2[7/3.5] / N38 are the foundation for many industrial devices, such as magnetic separators and linear motors. Thanks to the flat surface and high force (approx. 11.35 kg), they are ideal as hidden locks in furniture making and mounting elements in automation. Their rectangular shape facilitates precise gluing into milled sockets in wood or plastic.
Cyanoacrylate glues (super glue type) are good only for small magnets; for larger plates, we recommend resins. Double-sided tape cushions vibrations, which is an advantage when mounting in moving elements. Remember to roughen and wash the magnet surface before gluing, which significantly increases the adhesion of the glue to the nickel coating.
Standardly, the MPL 40x15x5x2[7/3.5] / N38 model is magnetized axially (dimension 5 mm), which means that the N and S poles are located on its largest, flat surfaces. In practice, this means that this magnet has the greatest attraction force on its main planes (40x15 mm), which is ideal for flat mounting. Such a pole arrangement ensures maximum holding capacity when pressing against the sheet, creating a closed magnetic circuit.
The presented product is a neodymium magnet with precisely defined parameters: 40 mm (length), 15 mm (width), and 5 mm (thickness). It is a magnetic block with dimensions 40x15x5 mm and a self-weight of 22.5 g, ready to work at temperatures up to 80°C. The product meets the standards for N38 grade magnets.

Advantages as well as disadvantages of rare earth magnets.

Strengths

Apart from their consistent magnetism, neodymium magnets have these key benefits:
  • They virtually do not lose power, because even after 10 years the decline in efficiency is only ~1% (according to literature),
  • Neodymium magnets remain remarkably resistant to loss of magnetic properties caused by magnetic disturbances,
  • Thanks to the smooth finish, the coating of nickel, gold, or silver-plated gives an modern appearance,
  • They are known for high magnetic induction at the operating surface, which affects their effectiveness,
  • Through (appropriate) combination of ingredients, they can achieve high thermal resistance, enabling action at temperatures approaching 230°C and above...
  • Thanks to versatility in shaping and the capacity to modify to individual projects,
  • Universal use in high-tech industry – they are utilized in mass storage devices, brushless drives, diagnostic systems, as well as modern systems.
  • Compactness – despite small sizes they generate large force, making them ideal for precision applications

Weaknesses

Cons of neodymium magnets and proposals for their use:
  • At very strong impacts they can break, therefore we advise placing them in strong housings. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
  • Neodymium magnets lose force when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of power (a factor is the shape and 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
  • Magnets exposed to a humid environment can rust. Therefore during using outdoors, we advise using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
  • Limited possibility of producing threads in the magnet and complicated shapes - recommended is casing - mounting mechanism.
  • Health risk related to microscopic parts of magnets are risky, if swallowed, which becomes key in the context of child safety. It is also worth noting that small elements of these magnets can be problematic in diagnostics medical in case of swallowing.
  • High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which hinders application in large quantities

Holding force characteristics

Maximum holding power of the magnet – what contributes to it?

The lifting capacity listed is a theoretical maximum value executed under specific, ideal conditions:
  • with the contact of a sheet made of special test steel, ensuring maximum field concentration
  • possessing a thickness of minimum 10 mm to ensure full flux closure
  • with an polished contact surface
  • without the slightest clearance between the magnet and steel
  • during detachment in a direction perpendicular to the mounting surface
  • at standard ambient temperature

Determinants of practical lifting force of a magnet

Please note that the magnet holding will differ subject to elements below, in order of importance:
  • Gap (between the magnet and the metal), since even a microscopic distance (e.g. 0.5 mm) can cause a reduction in force by up to 50% (this also applies to varnish, corrosion or debris).
  • Force direction – declared lifting capacity refers to detachment vertically. When slipping, the magnet holds much less (often approx. 20-30% of nominal force).
  • Substrate thickness – for full efficiency, the steel must be sufficiently thick. Thin sheet restricts the attraction force (the magnet "punches through" it).
  • Metal type – different alloys reacts the same. High carbon content worsen the attraction effect.
  • Smoothness – full contact is obtained only on polished steel. Any scratches and bumps create air cushions, weakening the magnet.
  • Temperature – temperature increase results in weakening of induction. Check the thermal limit for a given model.

Lifting capacity was measured with the use of a smooth steel plate of suitable thickness (min. 20 mm), under perpendicular detachment force, whereas under parallel forces the holding force is lower. Additionally, even a minimal clearance between the magnet’s surface and the plate reduces the holding force.

Precautions when working with neodymium magnets
Heat warning

Watch the temperature. Exposing the magnet to high heat will destroy its magnetic structure and strength.

Mechanical processing

Mechanical processing of neodymium magnets carries a risk of fire hazard. Neodymium dust oxidizes rapidly with oxygen and is difficult to extinguish.

Magnet fragility

Protect your eyes. Magnets can explode upon uncontrolled impact, ejecting shards into the air. Eye protection is mandatory.

Bone fractures

Pinching hazard: The pulling power is so immense that it can result in blood blisters, pinching, and broken bones. Protective gloves are recommended.

Magnetic interference

Navigation devices and smartphones are highly sensitive to magnetism. Close proximity with a powerful NdFeB magnet can decalibrate the sensors in your phone.

ICD Warning

Health Alert: Strong magnets can turn off pacemakers and defibrillators. Stay away if you have medical devices.

Safe operation

Use magnets consciously. Their immense force can surprise even professionals. Be vigilant and do not underestimate their force.

Danger to the youngest

NdFeB magnets are not suitable for play. Eating multiple magnets can lead to them connecting inside the digestive tract, which poses a severe health hazard and necessitates urgent medical intervention.

Electronic devices

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

Avoid contact if allergic

It is widely known that nickel (standard magnet coating) is a common allergen. For allergy sufferers, prevent touching magnets with bare hands or opt for versions in plastic housing.

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