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MPL 7x7x3 / N38 - lamellar magnet

lamellar magnet

Catalog no 020176

GTIN/EAN: 5906301811824

5.00
Load capacity 1.60 kg / 15.70 N Magnetic Induction 376.99 mT / 3770 Gs
length
7 mm [±0,1 mm]
Width
7 mm [±0,1 mm]
Height
3 mm [±0,1 mm]
Weight
1.1 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

check parameters »

0.440 zł net / pcs

0.541 zł with VAT (23% VAT) / pcs

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Frequently asked questions

How much will a block magnet really hold?
The catalogue force is measured in full contact with smooth steel at least 10 mm thick, pulled perpendicular, at about 20 °C. On 1 mm sheet about 50% of that value remains, on 0.5 mm about 25%. Mounted on a vertical wall the realistic figure is 20–30%, because the load is then in shear rather than in tension.
What is the maximum working temperature?
Standard N-series grades up to 80 °C, and N50, N52 and N54 up to 60 °C. Above the maximum working temperature the loss stops being reversible. The Curie temperature, at which magnetic properties are lost completely, is about 310 °C.
What safety factor should I allow?
At least twice the mass of the item, and three to five times for vertical mounting. The margin covers sheet thickness, surface condition, any layer of paint or rust, and vibration.

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 parameters of the product - MPL 7x7x3 / N38 - lamellar magnet

Specification / characteristics - MPL 7x7x3 / N38 - lamellar magnet

properties
properties values
Cat. no. 020176
GTIN/EAN 5906301811824
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 7 mm [±0,1 mm]
Width 7 mm [±0,1 mm]
Height 3 mm [±0,1 mm]
Weight 1.1 g
Magnetization Direction ↑ axial
Load capacity ~ ? 1.60 kg / 15.70 N
Magnetic Induction ~ ? 376.99 mT / 3770 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 7x7x3 / 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 310 °C
Curie Temperature TF 590 °F
Specific resistance 150 μΩ⋅cm
Bending strength 250 MPa
Compressive strength 1000~1100 MPa
Thermal expansion parallel (∥) to orientation (M) (3-4) x 10-6 °C-1
Thermal expansion perpendicular (⊥) to orientation (M) -(1-3) x 10-6 °C-1
Young's modulus 1.7 x 104 kg/mm²

Physical analysis of the product - report

These values are the result of a mathematical analysis. Results rely on models for the material Nd2Fe14B. Actual conditions might slightly deviate from the simulation results. Treat these data as a supplementary guide when designing systems.

Table 1: Static force (pull vs gap) - power drop
MPL 7x7x3 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 3767 Gs
376.7 mT
 1.60 kg / 3.53 LBS
1600.0 g / 15.7 N
 low risk
1 mm 2886 Gs
288.6 mT
 0.94 kg / 2.07 LBS
939.5 g / 9.2 N
 low risk
2 mm 2048 Gs
204.8 mT
 0.47 kg / 1.04 LBS
472.8 g / 4.6 N
 low risk
3 mm 1412 Gs
141.2 mT
 0.22 kg / 0.50 LBS
224.8 g / 2.2 N
 low risk
5 mm 686 Gs
68.6 mT
 0.05 kg / 0.12 LBS
53.0 g / 0.5 N
 low risk
10 mm 165 Gs
16.5 mT
 0.00 kg / 0.01 LBS
3.1 g / 0.0 N
 low risk
15 mm 60 Gs
6.0 mT
 0.00 kg / 0.00 LBS
0.4 g / 0.0 N
 low risk
20 mm 28 Gs
2.8 mT
 0.00 kg / 0.00 LBS
0.1 g / 0.0 N
 low risk
30 mm 9 Gs
0.9 mT
 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
 low risk
50 mm 2 Gs
0.2 mT
 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
 low risk
Magnetic force drops sharply per each millimeter of gap. Note that even the smallest gap (e.g., dirt, varnish, veneer) noticeably diminishes the holding power. Magnets work most effectively in perfect adhesion; gap weakens the force. Analyze how flashily the parameters drop, when the magnet does not adhere tightly to the metal substrate. When designing the mounting, discard unnecessary gaps.

Table 2: Sliding force (wall)
MPL 7x7x3 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.32 kg / 0.71 LBS
320.0 g / 3.1 N
1 mm Stal (~0.2) 0.19 kg / 0.41 LBS
188.0 g / 1.8 N
2 mm Stal (~0.2) 0.09 kg / 0.21 LBS
94.0 g / 0.9 N
3 mm Stal (~0.2) 0.04 kg / 0.10 LBS
44.0 g / 0.4 N
5 mm Stal (~0.2) 0.01 kg / 0.02 LBS
10.0 g / 0.1 N
10 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 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
This section presents the estimated weight limit sufficient to start the shifting of the magnet vertically along a upright steel plate (assuming standard friction). This value is relative to the distance between the magnet and the metal.

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MPL 7x7x3 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.48 kg / 1.06 LBS
480.0 g / 4.7 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.32 kg / 0.71 LBS
320.0 g / 3.1 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.16 kg / 0.35 LBS
160.0 g / 1.6 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
0.80 kg / 1.76 LBS
800.0 g / 7.8 N
When hanging a element on a upright wall (e.g., a fridge), it will maintain only approx. 20%-30% of its nominal power. Gravity and a weak degree of grip influence the fact that holders slide down easier than they pop off the substrate. Designing a wall mount? Note that the sliding force is significantly lower than the maximum static pull force. On a painted metal, the element will slide down under a noticeably lighter weight. Using a rubber layer can effectively increase the grip.

Table 4: Steel thickness (saturation) - sheet metal selection
MPL 7x7x3 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.16 kg / 0.35 LBS
160.0 g / 1.6 N
1 mm
25%
 0.40 kg / 0.88 LBS
400.0 g / 3.9 N
2 mm
50%
 0.80 kg / 1.76 LBS
800.0 g / 7.8 N
3 mm
75%
 1.20 kg / 2.65 LBS
1200.0 g / 11.8 N
5 mm
100%
 1.60 kg / 3.53 LBS
1600.0 g / 15.7 N
10 mm
100%
 1.60 kg / 3.53 LBS
1600.0 g / 15.7 N
11 mm
100%
 1.60 kg / 3.53 LBS
1600.0 g / 15.7 N
12 mm
100%
 1.60 kg / 3.53 LBS
1600.0 g / 15.7 N
A too thin steel cannot focus the full magnetic flux, which wastes potential of the magnet. Should you mount a strong magnet to a too thin substrate, the magnetism will pass right through and the pull force will drop sharply. To achieve 100% of this neodymium's power, you require a sufficiently solid backing of steel. The saturation effect means that on thin elements (e.g., car bodies), the product holds weaker. We advise picking the steel thickness based on the following data.

Table 5: Working in heat (stability) - resistance threshold
MPL 7x7x3 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 1.60 kg / 3.53 LBS
1600.0 g / 15.7 N
 OK
40 °C -2.2% 1.56 kg / 3.45 LBS
1564.8 g / 15.4 N
 OK
60 °C -4.4% 1.53 kg / 3.37 LBS
1529.6 g / 15.0 N
80 °C -6.6% 1.49 kg / 3.29 LBS
1494.4 g / 14.7 N
100 °C -28.8% 1.14 kg / 2.51 LBS
1139.2 g / 11.2 N
Ordinary NdFeB products change their properties power after exceeding the maximum temperature. Avoid high temperatures – heat can permanently destroy this magnet. With every degree above norm, the magnet's power momentarily drops. Do not use this magnet in hot environments higher than its safe range. Exceeding the critical threshold will lead to permanent loss of magnetism.
*Technical advisory: Thermal stability is determined by both grade, but also on the magnet's shape. Thin magnets (pancake types) are more susceptible to demagnetization under lower heat stress than taller cylinders. The danger warning in the table indicates a risk of irreversible loss for this particular item.

Table 6: Two magnets (attraction) - field collision
MPL 7x7x3 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Strength (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 4.29 kg / 9.45 LBS
5 173 Gs
0.64 kg / 1.42 LBS
643 g / 6.3 N
 N/A
1 mm 3.38 kg / 7.44 LBS
6 685 Gs
0.51 kg / 1.12 LBS
506 g / 5.0 N
 3.04 kg / 6.70 LBS
~0 Gs
2 mm 2.52 kg / 5.55 LBS
5 773 Gs
0.38 kg / 0.83 LBS
378 g / 3.7 N
 2.27 kg / 4.99 LBS
~0 Gs
3 mm 1.81 kg / 3.99 LBS
4 893 Gs
0.27 kg / 0.60 LBS
271 g / 2.7 N
 1.63 kg / 3.59 LBS
~0 Gs
5 mm 0.88 kg / 1.93 LBS
3 405 Gs
0.13 kg / 0.29 LBS
131 g / 1.3 N
 0.79 kg / 1.74 LBS
~0 Gs
10 mm 0.14 kg / 0.31 LBS
1 372 Gs
0.02 kg / 0.05 LBS
21 g / 0.2 N
 0.13 kg / 0.28 LBS
~0 Gs
20 mm 0.01 kg / 0.02 LBS
329 Gs
0.00 kg / 0.00 LBS
1 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
50 mm 0.00 kg / 0.00 LBS
30 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
60 mm 0.00 kg / 0.00 LBS
18 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
12 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
8 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
6 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
4 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
Two magnetic products interact from a much further distance than a magnet and steel combination. The connection of magnet-to-magnet creates a more powerful interaction and a wider radius of operation. Planning to create a powerful holder? Apply two magnets instead of a neodymium and a steel. Be careful that when attracting two neodymiums, the impact force is massive. The levitation is marginally weaker than the connection force, but still significant.
*Field value for N-N configuration is approximately ~0 Gs at the geometric center between the magnets (resulting from vector opposition).
Note: Calculations apply to friction force of two same magnets (friction ~0.15 for Ni-Ni layer).

Table 7: Protective zones (electronics) - warnings
MPL 7x7x3 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 4.0 cm
Hearing aid 10 Gs (1.0 mT) 3.0 cm
Mechanical watch 20 Gs (2.0 mT) 2.5 cm
Mobile device 40 Gs (4.0 mT) 2.0 cm
Remote 50 Gs (5.0 mT) 2.0 cm
Payment card 400 Gs (40.0 mT) 1.0 cm
HDD hard drive 600 Gs (60.0 mT) 1.0 cm
Powerful magnet radiation poses a large risk to electronics and medical implants. These magnets generate a field that destroys function of sensitive medical devices. Be aware: the invisible magnetic field acts through matter and glass. Exceptional care must be exercised by people with hearing aids and insulin pumps. Also at risk are: automatic timepieces, car keys, speakers, and screens. Avoid contact with magnetic cards, HDD media, or precise measuring instruments.

Table 8: Dynamics (cracking risk) - collision effects
MPL 7x7x3 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 24.53 km/h
(6.81 m/s)
 0.03 J
30 mm 24.57 km/h
(6.82 m/s)
 0.03 J
50 mm 24.56 km/h
(6.82 m/s)
 0.03 J
100 mm 24.57 km/h
(6.82 m/s)
 0.03 J
Magnetic elements are very brittle – a violent impact against metal causes immediate chipping. Control the attraction moment – a neodymium left loose speeds with massive force. Kinetic force can destroy the magnet or painful pinches to skin. Hold the magnet firmly during installation so it doesn't slam with momentum against the steel surface. A collision at high speed ends with a crack of the magnet. Wear eye protection when working with powerful specimens.

Table 9: Corrosion resistance
MPL 7x7x3 / 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)
For outdoor applications, an epoxy coating is required; standard nickel is intended for indoor use. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Electrical data (Pc)
MPL 7x7x3 / N38

Parameter Value SI Unit / Description
Magnetic Flux 1 909 Mx 19.1 µWb
Pc Coefficient 0.48 Low (Flat)
Flux value 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
MPL 7x7x3 / N38

Environment Effective steel pull Effect
Air (land) 1.60 kg Standard
Water (riverbed) 1.83 kg
(+0.23 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. Buoyancy helps in lifting finds.

1. Vertical hold

*Note: On a vertical surface, the magnet holds merely approx. 20-30% of its max power.

2. Steel saturation

*Thin steel (e.g. 0.5mm PC case) severely limits the holding force.

3. Temperature resistance

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

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.48

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

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%

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: 020176-2026
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MPL 40x10x5x2[7/3.5] / N38 - lamellar magnet

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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 7x7x3 mm and a weight of 1.1 g, guarantees premium class connection. This rectangular block with a force of 15.70 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.
Separating block magnets requires a technique based on sliding (moving one relative to the other), rather than forceful pulling apart. To separate the MPL 7x7x3 / N38 model, firmly slide one magnet over the edge of the other until the attraction force decreases. We recommend extreme caution, because after separation, the magnets may want to violently snap back together, which threatens pinching the skin. Using a screwdriver risks destroying the coating and permanently cracking the magnet.
Plate magnets MPL 7x7x3 / N38 are the foundation for many industrial devices, such as magnetic separators and linear motors. Thanks to the flat surface and high force (approx. 1.60 kg), they are ideal as closers in furniture making and mounting elements in automation. Their rectangular shape facilitates precise gluing into milled sockets in wood or plastic.
For mounting flat magnets MPL 7x7x3 / N38, it is best to use two-component adhesives (e.g., UHU Endfest, Distal), which ensure a durable bond with metal or plastic. For lighter applications or mounting on smooth surfaces, branded foam tape (e.g., 3M VHB) will work, provided the surface is perfectly degreased. 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 7x7x3 / N38 model is magnetized axially (dimension 3 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 (7x7 mm), which is ideal for flat mounting. This is the most popular configuration for block magnets used in separators and holders.
The presented product is a neodymium magnet with precisely defined parameters: 7 mm (length), 7 mm (width), and 3 mm (thickness). The key parameter here is the lifting capacity amounting to approximately 1.60 kg (force ~15.70 N), which, with such a compact shape, proves the high grade of the material. The protective [NiCuNi] coating secures the magnet against corrosion.

Advantages and disadvantages of rare earth magnets.

Advantages

Besides their high retention, neodymium magnets are valued for these benefits:
  • They virtually do not lose strength, because even after 10 years the performance loss is only ~1% (based on calculations),
  • Neodymium magnets are remarkably resistant to magnetic field loss caused by magnetic disturbances,
  • Thanks to the shimmering finish, the coating of Ni-Cu-Ni, gold, or silver gives an clean appearance,
  • The surface of neodymium magnets generates a powerful magnetic field – this is one of their assets,
  • Thanks to resistance to high temperature, they are able to function (depending on the form) even at temperatures up to 230°C and higher...
  • Possibility of custom shaping and modifying to defined needs,
  • Huge importance in electronics industry – they are utilized in computer drives, electric motors, medical devices, and technologically advanced constructions.
  • Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Weaknesses

What to avoid - cons of neodymium magnets and proposals for their use:
  • They are fragile upon too strong impacts. To avoid cracks, it is worth protecting magnets using a steel holder. Such protection not only shields the magnet but also improves its resistance to damage
  • Neodymium magnets lose their power under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
  • They rust in a humid environment. For use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
  • We suggest cover - magnetic mount, due to difficulties in producing nuts inside the magnet and complicated forms.
  • Potential hazard resulting from small fragments of magnets can be dangerous, in case of ingestion, which is particularly important in the aspect of protecting the youngest. It is also worth noting that tiny parts of these magnets are able to disrupt the diagnostic process medical after entering the body.
  • With budget limitations the cost of neodymium magnets can be a barrier,

Lifting parameters

Highest magnetic holding force – what affects it?

The specified lifting capacity concerns the limit force, obtained under laboratory conditions, namely:
  • on a plate made of structural steel, optimally conducting the magnetic flux
  • possessing a massiveness of minimum 10 mm to avoid saturation
  • with a surface perfectly flat
  • without any air gap between the magnet and steel
  • during pulling in a direction vertical to the plane
  • at standard ambient temperature

Practical lifting capacity: influencing factors

In practice, the actual lifting capacity depends on many variables, presented from most significant:
  • Space between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by varnish or dirt) diminishes the pulling force, often by half at just 0.5 mm.
  • Force direction – 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.
  • Metal thickness – the thinner the sheet, the weaker the hold. Magnetic flux penetrates through instead of generating force.
  • Steel grade – ideal substrate is high-permeability steel. Hardened steels may attract less.
  • Surface finish – ideal contact is possible only on polished steel. Any scratches and bumps reduce the real contact area, weakening the magnet.
  • Thermal environment – temperature increase causes a temporary drop of induction. It is worth remembering the thermal limit for a given model.

Lifting capacity testing was performed on a smooth plate of optimal thickness, under perpendicular forces, in contrast under attempts to slide the magnet the load capacity is reduced by as much as 75%. Moreover, even a minimal clearance between the magnet’s surface and the plate decreases the load capacity.

Safe handling of neodymium magnets
Fire warning

Dust created during cutting of magnets is combustible. Avoid drilling into magnets unless you are an expert.

Sensitization to coating

It is widely known that nickel (standard magnet coating) is a common allergen. If your skin reacts to metals, prevent direct skin contact and choose coated magnets.

Demagnetization risk

Control the heat. Exposing the magnet to high heat will permanently weaken its magnetic structure and pulling force.

Adults only

Neodymium magnets are not intended for children. Eating multiple magnets may result in them pinching intestinal walls, which constitutes a direct threat to life and requires immediate surgery.

Magnetic media

Do not bring magnets near a wallet, laptop, or screen. The magnetism can irreversibly ruin these devices and wipe information from cards.

Risk of cracking

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

Crushing risk

Pinching hazard: The attraction force is so great that it can result in blood blisters, crushing, and even bone fractures. Use thick gloves.

Warning for heart patients

Individuals with a heart stimulator have to maintain an absolute distance from magnets. The magnetism can interfere with the functioning of the implant.

Precision electronics

An intense magnetic field interferes with the operation of magnetometers in smartphones and GPS navigation. Maintain magnets close to a device to avoid breaking the sensors.

Safe operation

Exercise caution. Neodymium magnets act from a long distance and snap with huge force, often faster than you can move away.

Warning! More info about risks in the article: Safety of working with magnets.