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MPL 50x25x12 / N38 - lamellar magnet

lamellar magnet

Catalog no 020343

GTIN/EAN: 5906301811855

5.00
Load capacity 37.12 kg / 364.18 N Magnetic Induction 340.43 mT / 3404 Gs
length
50 mm [±0,1 mm]
Width
25 mm [±0,1 mm]
Height
12 mm [±0,1 mm]
Weight
112.5 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

product specifications »

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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 - MPL 50x25x12 / N38 - lamellar magnet

Specification / characteristics - MPL 50x25x12 / N38 - lamellar magnet

properties
properties values
Cat. no. 020343
GTIN/EAN 5906301811855
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 25 mm [±0,1 mm]
Height 12 mm [±0,1 mm]
Weight 112.5 g
Magnetization Direction ↑ axial
Load capacity ~ ? 37.12 kg / 364.18 N
Magnetic Induction ~ ? 340.43 mT / 3404 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 50x25x12 / 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 simulation of the magnet - data

The following data are the direct effect of a mathematical simulation. Values were calculated on models for the material Nd2Fe14B. Operational conditions might slightly differ from theoretical values. Please consider these data as a reference point when designing systems.

Table 1: Static force (pull vs gap) - interaction chart
MPL 50x25x12 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 3404 Gs
340.4 mT
 37.12 kg / 81.84 LBS
37120.0 g / 364.1 N
 critical level
1 mm 3234 Gs
323.4 mT
 33.50 kg / 73.86 LBS
33501.5 g / 328.6 N
 critical level
2 mm 3052 Gs
305.2 mT
 29.85 kg / 65.80 LBS
29847.1 g / 292.8 N
 critical level
3 mm 2866 Gs
286.6 mT
 26.32 kg / 58.02 LBS
26317.3 g / 258.2 N
 critical level
5 mm 2496 Gs
249.6 mT
 19.97 kg / 44.02 LBS
19965.4 g / 195.9 N
 critical level
10 mm 1702 Gs
170.2 mT
 9.28 kg / 20.45 LBS
9278.2 g / 91.0 N
 medium risk
15 mm 1151 Gs
115.1 mT
 4.25 kg / 9.36 LBS
4246.0 g / 41.7 N
 medium risk
20 mm 792 Gs
79.2 mT
 2.01 kg / 4.44 LBS
2012.1 g / 19.7 N
 medium risk
30 mm 404 Gs
40.4 mT
 0.52 kg / 1.15 LBS
523.0 g / 5.1 N
 low risk
50 mm 137 Gs
13.7 mT
 0.06 kg / 0.13 LBS
60.1 g / 0.6 N
 low risk
Pulling power decreases drastically with every subsequent millimeter of distance. Remember that even a microscopic distance (e.g., contamination, varnish, dust) strongly weakens the grip. Magnets hold optimally during direct contact; gap weakens the force. Notice how quickly the load capacity drop, when the product does not touch directly to the steel surface. When designing the assembly, avoid additional spacers.

Table 2: Sliding load (vertical surface)
MPL 50x25x12 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 7.42 kg / 16.37 LBS
7424.0 g / 72.8 N
1 mm Stal (~0.2) 6.70 kg / 14.77 LBS
6700.0 g / 65.7 N
2 mm Stal (~0.2) 5.97 kg / 13.16 LBS
5970.0 g / 58.6 N
3 mm Stal (~0.2) 5.26 kg / 11.61 LBS
5264.0 g / 51.6 N
5 mm Stal (~0.2) 3.99 kg / 8.81 LBS
3994.0 g / 39.2 N
10 mm Stal (~0.2) 1.86 kg / 4.09 LBS
1856.0 g / 18.2 N
15 mm Stal (~0.2) 0.85 kg / 1.87 LBS
850.0 g / 8.3 N
20 mm Stal (~0.2) 0.40 kg / 0.89 LBS
402.0 g / 3.9 N
30 mm Stal (~0.2) 0.10 kg / 0.23 LBS
104.0 g / 1.0 N
50 mm Stal (~0.2) 0.01 kg / 0.03 LBS
12.0 g / 0.1 N
The following data indicates the estimated shear load sufficient to cause the shifting of the magnet vertically against a vertical steel plate (considering typical friction coefficient). This parameter is relative to the gap size between the magnet and the surface.

Table 3: Vertical assembly (shearing) - vertical pull
MPL 50x25x12 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
11.14 kg / 24.55 LBS
11136.0 g / 109.2 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
7.42 kg / 16.37 LBS
7424.0 g / 72.8 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
3.71 kg / 8.18 LBS
3712.0 g / 36.4 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
18.56 kg / 40.92 LBS
18560.0 g / 182.1 N
When hanging a magnet on a vertical surface (e.g., a car body), it you can count on only about 20%-30% of its nominal power. Gravitational force and a low friction coefficient influence the fact that products move down faster than they pull off. Planning a vertical fastening? Remember that the sliding force is much weaker than the perpendicular breakaway force. On a painted metal, the element will give way down under a significantly smaller weight. Application of an anti-slip layer can drastically raise the stability.

Table 4: Steel thickness (saturation) - power losses
MPL 50x25x12 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
5%
 1.86 kg / 4.09 LBS
1856.0 g / 18.2 N
1 mm
13%
 4.64 kg / 10.23 LBS
4640.0 g / 45.5 N
2 mm
25%
 9.28 kg / 20.46 LBS
9280.0 g / 91.0 N
3 mm
38%
 13.92 kg / 30.69 LBS
13920.0 g / 136.6 N
5 mm
63%
 23.20 kg / 51.15 LBS
23200.0 g / 227.6 N
10 mm
100%
 37.12 kg / 81.84 LBS
37120.0 g / 364.1 N
11 mm
100%
 37.12 kg / 81.84 LBS
37120.0 g / 364.1 N
12 mm
100%
 37.12 kg / 81.84 LBS
37120.0 g / 364.1 N
A thin sheet is incapable of absorb the entire magnetic field, which squanders power of the holder. If you attach a powerful product to a weak sheet, the field will pass right through and the attraction force will be weaker. To achieve full efficiency of this magnet's potential, you require a sufficiently solid element of metal. The saturation phenomenon causes that on delicate walls (e.g., appliance housings), the product shows lower pull force. We suggest choosing the steel thickness according to the table below.

Table 5: Thermal resistance (material behavior) - power drop
MPL 50x25x12 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 37.12 kg / 81.84 LBS
37120.0 g / 364.1 N
 OK
40 °C -2.2% 36.30 kg / 80.04 LBS
36303.4 g / 356.1 N
 OK
60 °C -4.4% 35.49 kg / 78.23 LBS
35486.7 g / 348.1 N
80 °C -6.6% 34.67 kg / 76.43 LBS
34670.1 g / 340.1 N
100 °C -28.8% 26.43 kg / 58.27 LBS
26429.4 g / 259.3 N
Classic neodymiums change their properties parameters above the temperature limit. Avoid high temperatures – excessive heat can permanently destroy this product. As the temperature rises, the neodymium's capacity briefly drops. Do not use this product close to ovens exceeding its working range. Ignoring the limit will cause permanent loss of magnetic properties.
*Important note: Heat tolerance is determined by both grade, and the Permeance Coefficient Pc. Flat magnets (low permeance coefficient) may lose charge permanently sooner than long magnets. Red status in the table points to permanent field degradation for this particular item.

Table 6: Magnet-Magnet interaction (repulsion) - field collision
MPL 50x25x12 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 89.28 kg / 196.82 LBS
4 856 Gs
13.39 kg / 29.52 LBS
13392 g / 131.4 N
 N/A
1 mm 84.99 kg / 187.37 LBS
6 642 Gs
12.75 kg / 28.11 LBS
12749 g / 125.1 N
 76.49 kg / 168.63 LBS
~0 Gs
2 mm 80.57 kg / 177.64 LBS
6 467 Gs
12.09 kg / 26.65 LBS
12086 g / 118.6 N
 72.52 kg / 159.87 LBS
~0 Gs
3 mm 76.16 kg / 167.90 LBS
6 287 Gs
11.42 kg / 25.19 LBS
11424 g / 112.1 N
 68.54 kg / 151.11 LBS
~0 Gs
5 mm 67.49 kg / 148.78 LBS
5 919 Gs
10.12 kg / 22.32 LBS
10123 g / 99.3 N
 60.74 kg / 133.91 LBS
~0 Gs
10 mm 48.02 kg / 105.86 LBS
4 992 Gs
7.20 kg / 15.88 LBS
7203 g / 70.7 N
 43.22 kg / 95.28 LBS
~0 Gs
20 mm 22.32 kg / 49.20 LBS
3 403 Gs
3.35 kg / 7.38 LBS
3347 g / 32.8 N
 20.08 kg / 44.28 LBS
~0 Gs
50 mm 2.41 kg / 5.31 LBS
1 118 Gs
0.36 kg / 0.80 LBS
361 g / 3.5 N
 2.17 kg / 4.78 LBS
~0 Gs
60 mm 1.26 kg / 2.77 LBS
808 Gs
0.19 kg / 0.42 LBS
189 g / 1.9 N
 1.13 kg / 2.50 LBS
~0 Gs
70 mm 0.69 kg / 1.52 LBS
598 Gs
0.10 kg / 0.23 LBS
103 g / 1.0 N
 0.62 kg / 1.37 LBS
~0 Gs
80 mm 0.39 kg / 0.87 LBS
452 Gs
0.06 kg / 0.13 LBS
59 g / 0.6 N
 0.35 kg / 0.78 LBS
~0 Gs
90 mm 0.23 kg / 0.52 LBS
349 Gs
0.04 kg / 0.08 LBS
35 g / 0.3 N
 0.21 kg / 0.47 LBS
~0 Gs
100 mm 0.14 kg / 0.32 LBS
274 Gs
0.02 kg / 0.05 LBS
22 g / 0.2 N
 0.13 kg / 0.29 LBS
~0 Gs
Two strong neodymiums interact from a much further distance than a magnet and sheet combination. The connection of two magnets produces a massive flux and a larger range of performance. Planning to create a solid fastener? Use a pair of magnets instead of one magnet and a striker plate. Be careful that when bringing together two magnets, the impact force is huge. The repulsion force is a bit weaker than the connection force, but still impressive.
*Flux density in repulsion mode reaches ~0 Gs at the geometric center between the magnets (caused by magnetic field nullification).
Important: Results demonstrate sliding force of dual same magnets (friction ~0.15 for Ni-Ni coating).

Table 7: Protective zones (implants) - precautionary measures
MPL 50x25x12 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 17.5 cm
Hearing aid 10 Gs (1.0 mT) 14.0 cm
Timepiece 20 Gs (2.0 mT) 11.0 cm
Mobile device 40 Gs (4.0 mT) 8.5 cm
Car key 50 Gs (5.0 mT) 8.0 cm
Payment card 400 Gs (40.0 mT) 3.5 cm
HDD hard drive 600 Gs (60.0 mT) 2.5 cm
Powerful magnet radiation is a large risk to IT equipment as well as pacemakers. These neodymiums generate a field that prevents correct functioning of sensitive medical devices. Notice: the unseen radiation penetrates the body and housings. Special caution must be exercised by people with hearing aids and insulin pumps. The risk also applies to: automatic timepieces, car keys, speakers, and screens. Do not bring the product near payment cards, hard drives, or sensitive navigation tools.

Table 8: Impact energy (kinetic energy) - warning
MPL 50x25x12 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 21.86 km/h
(6.07 m/s)
 2.07 J
30 mm 24.67 km/h
(6.85 m/s)
 2.64 J
50 mm 24.85 km/h
(6.90 m/s)
 2.68 J
100 mm 24.89 km/h
(6.91 m/s)
 2.69 J
NdFeB products are delicate – a collision with steel can result in shattering. Watch the impact speed – a neodymium left loose becomes dangerous. Striking energy can destroy the magnet or dangerous crushing to fingers. Always hold the magnet during bringing near metal so it doesn't slam with momentum against the metal. A contact at a velocity of dozens of km/h ends with a crack of the magnet. Wear eye protection when playing with large magnets.

Table 9: Coating parameters (durability)
MPL 50x25x12 / 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 following table defines the conditions under which this product can be safely used. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Construction data (Flux)
MPL 50x25x12 / N38

Parameter Value SI Unit / Description
Magnetic Flux 42 945 Mx 429.5 µWb
Pc Coefficient 0.40 Low (Flat)
Flux value passing through the pole surface. Key data when building generators and motors. Pc value defines the working geometry.

Table 11: Underwater work (magnet fishing)
MPL 50x25x12 / N38

Environment Effective steel pull Effect
Air (land) 37.12 kg Standard
Water (riverbed) 42.50 kg
(+5.38 kg buoyancy gain)
+14.5%
Corrosion warning: Remember to wipe the magnet thoroughly after removing it from water and apply a protective layer (e.g., oil) to avoid corrosion.
The magnetic field penetrates through water without any losses. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Wall mount (shear)

*Note: On a vertical wall, the magnet retains merely approx. 20-30% of its nominal pull.

2. Plate thickness effect

*Thin metal sheet (e.g. computer case) significantly 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) = 0.40

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.

Technical and environmental data

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%

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: 020343-2026
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This product is a very powerful plate magnet made of NdFeB material, which, with dimensions of 50x25x12 mm and a weight of 112.5 g, guarantees premium class connection. As a magnetic bar with high power (approx. 37.12 kg), this product is available off-the-shelf from our warehouse in Poland. Furthermore, its Ni-Cu-Ni coating secures 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. Watch your fingers! Magnets with a force of 37.12 kg can pinch very hard and cause hematomas. Using a screwdriver risks destroying the coating and permanently cracking the magnet.
Plate magnets MPL 50x25x12 / N38 are the foundation for many industrial devices, such as filters catching filings and linear motors. Thanks to the flat surface and high force (approx. 37.12 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.
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. Avoid chemically aggressive glues or hot glue, which can demagnetize neodymium (above 80°C).
Standardly, the MPL 50x25x12 / N38 model is magnetized axially (dimension 12 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 (50x25 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: 50 mm (length), 25 mm (width), and 12 mm (thickness). It is a magnetic block with dimensions 50x25x12 mm and a self-weight of 112.5 g, ready to work at temperatures up to 80°C. The protective [NiCuNi] coating secures the magnet against corrosion.

Strengths and weaknesses of rare earth magnets.

Benefits

Besides their high retention, neodymium magnets are valued for these benefits:
  • Their strength is durable, and after approximately 10 years it decreases only by ~1% (theoretically),
  • They are noted for resistance to demagnetization induced by external field influence,
  • The use of an aesthetic coating of noble metals (nickel, gold, silver) causes the element to present itself better,
  • The surface of neodymium magnets generates a maximum magnetic field – this is a key feature,
  • Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
  • In view of the possibility of free forming and customization to individualized projects, NdFeB magnets can be modeled in a variety of shapes and sizes, which amplifies use scope,
  • Versatile presence in electronics industry – they serve a role in computer drives, motor assemblies, advanced medical instruments, as well as technologically advanced constructions.
  • Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Weaknesses

Disadvantages of neodymium magnets:
  • They are fragile upon heavy impacts. To avoid cracks, it is worth securing magnets using a steel holder. Such protection not only protects the magnet but also increases its resistance to damage
  • When exposed to high temperature, neodymium magnets suffer a drop in strength. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size and shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
  • Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material stable to moisture, in case of application outdoors
  • We recommend cover - magnetic mount, due to difficulties in producing threads inside the magnet and complex shapes.
  • Possible danger resulting from small fragments of magnets pose a threat, when accidentally swallowed, which gains importance in the aspect of protecting the youngest. Additionally, small elements of these products can complicate diagnosis medical in case of swallowing.
  • With budget limitations the cost of neodymium magnets is economically unviable,

Holding force characteristics

Maximum magnetic pulling force – what contributes to it?

The load parameter shown concerns the peak performance, obtained under optimal environment, namely:
  • on a block made of mild steel, effectively closing the magnetic field
  • with a cross-section of at least 10 mm
  • with a plane free of scratches
  • under conditions of no distance (surface-to-surface)
  • during pulling in a direction vertical to the plane
  • at room temperature

Determinants of lifting force in real conditions

Please note that the working load will differ depending on the following factors, starting with the most relevant:
  • Gap between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by varnish or unevenness) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
  • Force direction – catalog parameter refers to detachment vertically. When attempting to slide, the magnet holds much less (typically approx. 20-30% of nominal force).
  • Wall thickness – the thinner the sheet, the weaker the hold. Magnetic flux penetrates through instead of converting into lifting capacity.
  • Metal type – different alloys reacts the same. Alloy additives weaken the interaction with the magnet.
  • Surface quality – the smoother and more polished the surface, the larger the contact zone and stronger the hold. Roughness creates an air distance.
  • Temperature – heating the magnet results in weakening of force. Check the thermal limit for a given model.

Lifting capacity testing was carried out on a smooth plate of suitable thickness, under perpendicular forces, in contrast under shearing force the lifting capacity is smaller. In addition, even a minimal clearance between the magnet and the plate decreases the lifting capacity.

Warnings
Do not give to children

Product intended for adults. Tiny parts pose a choking risk, causing severe trauma. Store away from kids and pets.

Threat to navigation

A strong magnetic field negatively affects the functioning of magnetometers in phones and GPS navigation. Maintain magnets near a device to prevent breaking the sensors.

Demagnetization risk

Watch the temperature. Heating the magnet to high heat will ruin its magnetic structure and strength.

Immense force

Before starting, check safety instructions. Uncontrolled attraction can break the magnet or injure your hand. Think ahead.

Crushing force

Danger of trauma: The attraction force is so immense that it can cause hematomas, pinching, and broken bones. Protective gloves are recommended.

Safe distance

Intense magnetic fields can erase data on payment cards, hard drives, and other magnetic media. Keep a distance of at least 10 cm.

Allergy Warning

Nickel alert: The nickel-copper-nickel coating contains nickel. If skin irritation occurs, immediately stop working with magnets and wear gloves.

Life threat

Life threat: Strong magnets can deactivate pacemakers and defibrillators. Stay away if you have medical devices.

Fire warning

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

Protective goggles

NdFeB magnets are ceramic materials, which means they are very brittle. Clashing of two magnets will cause them shattering into shards.

Caution! More info about hazards in the article: Magnet Safety Guide.