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MPL 50x30x4 / N38 - lamellar magnet

lamellar magnet

Catalog no 020497

GTIN/EAN: 5906301814955

Load capacity 7.57 kg / 74.26 N Magnetic Induction 120.04 mT / 1200 Gs
length
50 mm [±0,1 mm]
Width
30 mm [±0,1 mm]
Height
4 mm [±0,1 mm]
Weight
45 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

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21.00 zł net / pcs

25.83 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 specification of the product - MPL 50x30x4 / N38 - lamellar magnet

Specification / characteristics - MPL 50x30x4 / N38 - lamellar magnet

properties
properties values
Cat. no. 020497
GTIN/EAN 5906301814955
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 50 mm [±0,1 mm]
Width 30 mm [±0,1 mm]
Height 4 mm [±0,1 mm]
Weight 45 g
Magnetization Direction ↑ axial
Load capacity ~ ? 7.57 kg / 74.26 N
Magnetic Induction ~ ? 120.04 mT / 1200 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 50x30x4 / N38 - lamellar 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 analysis of the product - report

The following data are the direct effect of a engineering simulation. Values are based on models for the material Nd2Fe14B. Actual conditions may differ. Please consider these data as a reference point when designing systems.

Table 1: Static pull force (pull vs gap) - interaction chart
MPL 50x30x4 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 1200 Gs
120.0 mT
 7.57 kg / 16.69 lbs
7570.0 g / 74.3 N
 medium risk
1 mm 1176 Gs
117.6 mT
 7.27 kg / 16.03 lbs
7270.9 g / 71.3 N
 medium risk
2 mm 1144 Gs
114.4 mT
 6.88 kg / 15.16 lbs
6877.1 g / 67.5 N
 medium risk
3 mm 1105 Gs
110.5 mT
 6.41 kg / 14.14 lbs
6414.7 g / 62.9 N
 medium risk
5 mm 1012 Gs
101.2 mT
 5.38 kg / 11.86 lbs
5381.2 g / 52.8 N
 medium risk
10 mm 754 Gs
75.4 mT
 2.99 kg / 6.59 lbs
2990.1 g / 29.3 N
 medium risk
15 mm 535 Gs
53.5 mT
 1.50 kg / 3.31 lbs
1503.5 g / 14.7 N
 weak grip
20 mm 376 Gs
37.6 mT
 0.74 kg / 1.64 lbs
743.3 g / 7.3 N
 weak grip
30 mm 193 Gs
19.3 mT
 0.20 kg / 0.43 lbs
195.8 g / 1.9 N
 weak grip
50 mm 64 Gs
6.4 mT
 0.02 kg / 0.05 lbs
21.4 g / 0.2 N
 weak grip
Grip strength drops drastically per each millimeter of gap. Keep in mind that even a microscopic distance (e.g., contamination, paint, veneer) noticeably diminishes the holding power. Magnetic products hold most effectively in perfect adhesion; distance kills the power. See how rapidly the load capacity plummet, when the product does not adhere directly to the metal substrate. When designing the mounting, avoid redundant distances.

Table 2: Slippage hold (vertical surface)
MPL 50x30x4 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 1.51 kg / 3.34 lbs
1514.0 g / 14.9 N
1 mm Stal (~0.2) 1.45 kg / 3.21 lbs
1454.0 g / 14.3 N
2 mm Stal (~0.2) 1.38 kg / 3.03 lbs
1376.0 g / 13.5 N
3 mm Stal (~0.2) 1.28 kg / 2.83 lbs
1282.0 g / 12.6 N
5 mm Stal (~0.2) 1.08 kg / 2.37 lbs
1076.0 g / 10.6 N
10 mm Stal (~0.2) 0.60 kg / 1.32 lbs
598.0 g / 5.9 N
15 mm Stal (~0.2) 0.30 kg / 0.66 lbs
300.0 g / 2.9 N
20 mm Stal (~0.2) 0.15 kg / 0.33 lbs
148.0 g / 1.5 N
30 mm Stal (~0.2) 0.04 kg / 0.09 lbs
40.0 g / 0.4 N
50 mm Stal (~0.2) 0.00 kg / 0.01 lbs
4.0 g / 0.0 N
The table below presents the theoretical weight limit needed to cause the downward movement of the magnet vertically along a upright steel wall (considering standard friction). This parameter varies with the gap size between the magnet and the metal.

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MPL 50x30x4 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
2.27 kg / 5.01 lbs
2271.0 g / 22.3 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
1.51 kg / 3.34 lbs
1514.0 g / 14.9 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.76 kg / 1.67 lbs
757.0 g / 7.4 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
3.79 kg / 8.34 lbs
3785.0 g / 37.1 N
When placing a holder on a upright wall (e.g., a fridge), it will only hold barely approx. 20%-30% of nominal attraction strength. Gravitational force as well as a weak degree of grip mean that magnets slide down easier than they detach. Want to create a vertical fastening? Note that the shear force is significantly lower than the perpendicular breakaway force. On a painted metal, the magnet will give way down under a noticeably lighter load. Utilizing a rubberized layer can significantly increase the grip.

Table 4: Material efficiency (substrate influence) - sheet metal selection
MPL 50x30x4 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.76 kg / 1.67 lbs
757.0 g / 7.4 N
1 mm
25%
 1.89 kg / 4.17 lbs
1892.5 g / 18.6 N
2 mm
50%
 3.79 kg / 8.34 lbs
3785.0 g / 37.1 N
3 mm
75%
 5.68 kg / 12.52 lbs
5677.5 g / 55.7 N
5 mm
100%
 7.57 kg / 16.69 lbs
7570.0 g / 74.3 N
10 mm
100%
 7.57 kg / 16.69 lbs
7570.0 g / 74.3 N
11 mm
100%
 7.57 kg / 16.69 lbs
7570.0 g / 74.3 N
12 mm
100%
 7.57 kg / 16.69 lbs
7570.0 g / 74.3 N
A too thin steel is not enough to focus the full magnetic flux, which squanders power of the holder. Should you mount a strong magnet to a thin surface, the field will penetrate right through and the attraction force will be weaker. To utilize 100% of this magnet's potential, you need a suitably thick element of metal. The saturation effect means that on sheet metal structures (e.g., thin profiles), the product works worse. We suggest choosing the steel dimension from these parameters.

Table 5: Thermal resistance (material behavior) - power drop
MPL 50x30x4 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 7.57 kg / 16.69 lbs
7570.0 g / 74.3 N
 OK
40 °C -2.2% 7.40 kg / 16.32 lbs
7403.5 g / 72.6 N
 OK
60 °C -4.4% 7.24 kg / 15.95 lbs
7236.9 g / 71.0 N
80 °C -6.6% 7.07 kg / 15.59 lbs
7070.4 g / 69.4 N
100 °C -28.8% 5.39 kg / 11.88 lbs
5389.8 g / 52.9 N
Standard neodymium magnets lose power after exceeding the maximum temperature. Watch out for overheating – high temperature can irreversibly destroy this product. As the temperature rises, the neodymium's force briefly decreases. Refrain from using this product in hot environments exceeding its operating temperature limit. Too high temperature will lead to permanent loss of magnetic properties.
*Engineering note: Heat tolerance depends not only on the material grade, but also on the magnet's shape. Low-profile magnets (pancake types) are more susceptible to demagnetization at lower temperatures than taller cylinders. Red status in the table indicates permanent field degradation for this specific geometry.

Table 6: Two magnets (repulsion) - forces in the system
MPL 50x30x4 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Lateral Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 13.32 kg / 29.37 lbs
2 260 Gs
2.00 kg / 4.41 lbs
1999 g / 19.6 N
 N/A
1 mm 13.09 kg / 28.85 lbs
2 379 Gs
1.96 kg / 4.33 lbs
1963 g / 19.3 N
 11.78 kg / 25.96 lbs
~0 Gs
2 mm 12.80 kg / 28.21 lbs
2 353 Gs
1.92 kg / 4.23 lbs
1920 g / 18.8 N
 11.52 kg / 25.39 lbs
~0 Gs
3 mm 12.47 kg / 27.49 lbs
2 322 Gs
1.87 kg / 4.12 lbs
1870 g / 18.3 N
 11.22 kg / 24.74 lbs
~0 Gs
5 mm 11.71 kg / 25.82 lbs
2 251 Gs
1.76 kg / 3.87 lbs
1756 g / 17.2 N
 10.54 kg / 23.23 lbs
~0 Gs
10 mm 9.47 kg / 20.88 lbs
2 024 Gs
1.42 kg / 3.13 lbs
1421 g / 13.9 N
 8.52 kg / 18.79 lbs
~0 Gs
20 mm 5.26 kg / 11.60 lbs
1 509 Gs
0.79 kg / 1.74 lbs
789 g / 7.7 N
 4.74 kg / 10.44 lbs
~0 Gs
50 mm 0.66 kg / 1.45 lbs
534 Gs
0.10 kg / 0.22 lbs
99 g / 1.0 N
 0.59 kg / 1.31 lbs
~0 Gs
60 mm 0.34 kg / 0.76 lbs
386 Gs
0.05 kg / 0.11 lbs
52 g / 0.5 N
 0.31 kg / 0.68 lbs
~0 Gs
70 mm 0.19 kg / 0.41 lbs
285 Gs
0.03 kg / 0.06 lbs
28 g / 0.3 N
 0.17 kg / 0.37 lbs
~0 Gs
80 mm 0.11 kg / 0.23 lbs
214 Gs
0.02 kg / 0.03 lbs
16 g / 0.2 N
 0.10 kg / 0.21 lbs
~0 Gs
90 mm 0.06 kg / 0.14 lbs
164 Gs
0.01 kg / 0.02 lbs
9 g / 0.1 N
 0.06 kg / 0.12 lbs
~0 Gs
100 mm 0.04 kg / 0.08 lbs
128 Gs
0.01 kg / 0.01 lbs
6 g / 0.1 N
 0.03 kg / 0.07 lbs
~0 Gs
Two strong neodymiums attract each other from a significantly greater distance than a neodymium and metal setup. The connection of magnet-to-magnet generates a stronger field and a larger range of action. Designing a solid fastener? Utilize two neodymiums instead of a neodymium and a striker plate. Remember that when connecting a pair of magnets, the impact force is huge. The repulsion force is marginally weaker than the attraction, but still large.
*Field value in repulsion mode is approximately ~0 Gs at the geometric center of the gap (resulting from vector opposition).
* Calculations demonstrate sliding force of a pair of same magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Protective zones (implants) - precautionary measures
MPL 50x30x4 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 13.0 cm
Hearing aid 10 Gs (1.0 mT) 10.5 cm
Timepiece 20 Gs (2.0 mT) 8.0 cm
Phone / Smartphone 40 Gs (4.0 mT) 6.5 cm
Remote 50 Gs (5.0 mT) 6.0 cm
Payment card 400 Gs (40.0 mT) 2.0 cm
HDD hard drive 600 Gs (60.0 mT) 1.5 cm
Extremely neodym field is a real danger to IT equipment as well as medical implants. These neodymiums produce a flux that prevents correct functioning of sensitive medical devices. Notice: the invisible magnetic field acts through matter and housings. Special caution must be exercised by people with hearing aids and drug dispensers. The risk also applies to: automatic timepieces, remotes, membranes, and displays. Do not bring the product near payment cards, hard drives, or sensitive navigation tools.

Table 8: Impact energy (kinetic energy) - warning
MPL 50x30x4 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 17.44 km/h
(4.84 m/s)
 0.53 J
30 mm 20.47 km/h
(5.68 m/s)
 0.73 J
50 mm 20.66 km/h
(5.74 m/s)
 0.74 J
100 mm 20.71 km/h
(5.75 m/s)
 0.74 J
Neodymium magnets are prone to chipping – a violent impact against metal causes immediate chipping. Pay attention to connection velocity – a magnet released freely turns into a projectile. Striking energy can trigger coating fragments or dangerous crushing to fingers. Be sure to control the product during mounting so it doesn't hit violently against the metal. A collision at high speed almost guarantees destruction of the neodymium. Wear eye protection when playing with large magnets.

Table 9: Corrosion resistance
MPL 50x30x4 / 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. Note the thickness of the protective layer.

Table 10: Construction data (Flux)
MPL 50x30x4 / N38

Parameter Value SI Unit / Description
Magnetic Flux 22 399 Mx 224.0 µWb
Pc Coefficient 0.14 Low (Flat)
Total magnetic flux passing through the pole surface. Key data when building generators and motors. The Pc coefficient determines the working geometry.

Table 11: Hydrostatics and buoyancy
MPL 50x30x4 / N38

Environment Effective steel pull Effect
Air (land) 7.57 kg Standard
Water (riverbed) 8.67 kg
(+1.10 kg buoyancy gain)
+14.5%
Warning: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!
Water displaces steel, making heavy objects slightly lighter. Buoyancy helps in lifting finds.

1. Vertical hold

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

2. Steel thickness impact

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

3. Power loss vs temp

*For standard magnets, the safety limit is 80°C.

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.14

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

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%

Ecology and recycling (GPSR)

recyclability (EoL) 100%
recycled raw materials ~10% (pre-cons)
carbon footprint low / zredukowany
waste code (EWC) 16 02 16
Safety card (GPSR)
responsible entity
Dhit sp. z o.o.
ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki
tel: +48 22 499 98 98 | e-mail: bok@dhit.pl
batch number/type
id: 020497-2026
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This product is an extremely strong plate magnet made of NdFeB material, which, with dimensions of 50x30x4 mm and a weight of 45 g, guarantees premium class connection. As a block magnet with high power (approx. 7.57 kg), this product is available immediately from our warehouse in Poland. Additionally, its Ni-Cu-Ni coating protects it against corrosion in standard operating conditions, giving it an aesthetic appearance.
Separating block magnets requires a technique based on sliding (moving one relative to the other), rather than forceful pulling apart. To separate the MPL 50x30x4 / 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. Never use metal tools for prying, as the brittle NdFeB material may chip and damage your eyes.
They constitute a key element in the production of generators and material handling systems. Thanks to the flat surface and high force (approx. 7.57 kg), they are ideal as closers in furniture making and mounting elements in automation. Customers often choose this model for hanging tools on strips and for advanced DIY and modeling projects, where precision and power count.
For mounting flat magnets MPL 50x30x4 / N38, we recommend utilizing strong epoxy glues (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 50x30x4 / N38 model is magnetized axially (dimension 4 mm), which means that the N and S poles are located on its largest, flat surfaces. Thanks to this, it works best when "sticking" to sheet metal or another magnet with a large surface area. Such a pole arrangement ensures maximum holding capacity when pressing against the sheet, creating a closed magnetic circuit.
This model is characterized by dimensions 50x30x4 mm, which, at a weight of 45 g, makes it an element with impressive energy density. It is a magnetic block with dimensions 50x30x4 mm and a self-weight of 45 g, ready to work at temperatures up to 80°C. The protective [NiCuNi] coating secures the magnet against corrosion.

Pros and cons of Nd2Fe14B magnets.

Benefits

Besides their exceptional strength, neodymium magnets offer the following advantages:
  • They have constant strength, and over more than 10 years their performance decreases symbolically – ~1% (according to theory),
  • They feature excellent resistance to magnetic field loss due to external magnetic sources,
  • A magnet with a smooth nickel surface looks better,
  • Neodymium magnets create maximum magnetic induction on a small surface, which ensures high operational effectiveness,
  • Through (appropriate) combination of ingredients, they can achieve high thermal strength, enabling functioning at temperatures reaching 230°C and above...
  • Due to the ability of flexible forming and adaptation to specialized requirements, neodymium magnets can be created in a variety of shapes and sizes, which increases their versatility,
  • Fundamental importance in advanced technology sectors – they serve a role in hard drives, electric motors, precision medical tools, also complex engineering applications.
  • Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in tiny dimensions, which makes them useful in compact constructions

Cons

Cons of neodymium magnets and proposals for their use:
  • They are fragile upon heavy impacts. To avoid cracks, it is worth protecting magnets in a protective case. Such protection not only protects the magnet but also increases its resistance to damage
  • Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of strength (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 extremely resistant to heat
  • They rust in a humid environment - during use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
  • Limited ability of creating nuts in the magnet and complicated forms - recommended is casing - magnetic holder.
  • Possible danger resulting from small fragments of magnets can be dangerous, when accidentally swallowed, which gains importance in the context of child health protection. Additionally, small components of these products can complicate diagnosis medical when they are in the body.
  • Due to complex production process, their price is higher than average,

Pull force analysis

Highest magnetic holding force – what contributes to it?

The lifting capacity listed is a theoretical maximum value executed under specific, ideal conditions:
  • using a base made of low-carbon steel, acting as a circuit closing element
  • whose thickness is min. 10 mm
  • characterized by smoothness
  • with total lack of distance (without paint)
  • during detachment in a direction perpendicular to the mounting surface
  • at room temperature

Lifting capacity in practice – influencing factors

It is worth knowing that the application force will differ depending on the following factors, starting with the most relevant:
  • Gap (between the magnet and the plate), because even a microscopic clearance (e.g. 0.5 mm) results in a decrease in force by up to 50% (this also applies to paint, rust or dirt).
  • Load vector – highest force is obtained only during perpendicular pulling. The force required to slide of the magnet along the plate is standardly many times smaller (approx. 1/5 of the lifting capacity).
  • Element thickness – for full efficiency, the steel must be adequately massive. Thin sheet limits the lifting capacity (the magnet "punches through" it).
  • Material type – the best choice is high-permeability steel. Stainless steels may generate lower lifting capacity.
  • Smoothness – full contact is possible only on polished steel. Rough texture create air cushions, reducing force.
  • Thermal factor – hot environment weakens pulling force. Too high temperature can permanently damage the magnet.

Lifting capacity testing was carried out on a smooth plate of suitable thickness, under a perpendicular pulling force, however under shearing force the load capacity is reduced by as much as fivefold. In addition, even a minimal clearance between the magnet’s surface and the plate reduces the load capacity.

Precautions when working with neodymium magnets
Fragile material

Despite the nickel coating, the material is brittle and cannot withstand shocks. Avoid impacts, as the magnet may crumble into hazardous fragments.

Safe operation

Be careful. Neodymium magnets attract from a distance and snap with massive power, often faster than you can react.

Avoid contact if allergic

A percentage of the population suffer from a contact allergy to Ni, which is the typical protective layer for neodymium magnets. Extended handling might lead to dermatitis. We suggest use safety gloves.

Data carriers

Avoid bringing magnets close to a wallet, computer, or TV. The magnetic field can permanently damage these devices and erase data from cards.

Mechanical processing

Combustion risk: Neodymium dust is explosive. Do not process magnets in home conditions as this may cause fire.

Pinching danger

Large magnets can smash fingers in a fraction of a second. Do not place your hand between two attracting surfaces.

Magnetic interference

An intense magnetic field interferes with the operation of compasses in smartphones and navigation systems. Keep magnets close to a smartphone to avoid damaging the sensors.

Medical implants

Warning for patients: Strong magnetic fields disrupt medical devices. Maintain minimum 30 cm distance or request help to handle the magnets.

Product not for children

Only for adults. Small elements pose a choking risk, leading to serious injuries. Store out of reach of kids and pets.

Permanent damage

Avoid heat. NdFeB magnets are sensitive to temperature. If you require operation above 80°C, ask us about HT versions (H, SH, UH).

Important! Details about risks in the article: Safety of working with magnets.