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MPL 50x50x25 / N38 - lamellar magnet

lamellar magnet

Catalog no 020168

GTIN/EAN: 5906301811749

Load capacity 90.53 kg / 888.15 N Magnetic Induction 413.25 mT / 4133 Gs
length
50 mm [±0,1 mm]
Width
50 mm [±0,1 mm]
Height
25 mm [±0,1 mm]
Weight
468.75 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

view specifications »

130.00 zł net / pcs

159.90 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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Detailed specification - MPL 50x50x25 / N38 - lamellar magnet

Specification / characteristics - MPL 50x50x25 / N38 - lamellar magnet

properties
properties values
Cat. no. 020168
GTIN/EAN 5906301811749
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 50 mm [±0,1 mm]
Height 25 mm [±0,1 mm]
Weight 468.75 g
Magnetization Direction ↑ axial
Load capacity ~ ? 90.53 kg / 888.15 N
Magnetic Induction ~ ? 413.25 mT / 4133 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 50x50x25 / 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

Technical analysis of the assembly - technical parameters

These values are the result of a mathematical simulation. Values are based on models for the class Nd2Fe14B. Actual performance may differ from theoretical values. Use these data as a supplementary guide for designers.

Table 1: Static force (pull vs distance) - interaction chart
MPL 50x50x25 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 4132 Gs
413.2 mT
 90.53 kg / 199.58 pounds
90530.0 g / 888.1 N
 dangerous!
1 mm 3999 Gs
399.9 mT
 84.79 kg / 186.94 pounds
84794.0 g / 831.8 N
 dangerous!
2 mm 3861 Gs
386.1 mT
 79.04 kg / 174.25 pounds
79038.6 g / 775.4 N
 dangerous!
3 mm 3720 Gs
372.0 mT
 73.38 kg / 161.78 pounds
73381.8 g / 719.9 N
 dangerous!
5 mm 3435 Gs
343.5 mT
 62.56 kg / 137.93 pounds
62564.2 g / 613.8 N
 dangerous!
10 mm 2742 Gs
274.2 mT
 39.87 kg / 87.90 pounds
39868.7 g / 391.1 N
 dangerous!
15 mm 2137 Gs
213.7 mT
 24.21 kg / 53.37 pounds
24210.4 g / 237.5 N
 dangerous!
20 mm 1649 Gs
164.9 mT
 14.41 kg / 31.77 pounds
14409.9 g / 141.4 N
 dangerous!
30 mm 988 Gs
98.8 mT
 5.17 kg / 11.40 pounds
5170.9 g / 50.7 N
 warning
50 mm 399 Gs
39.9 mT
 0.85 kg / 1.86 pounds
845.8 g / 8.3 N
 safe
Magnetic force decreases drastically per each millimeter of gap. Note that every additional insulation layer (e.g., dirt, paint, dust) noticeably reduces the pull force. Magnetic products work strongest during direct contact; gap nullifies the power. See how quickly the pull force fall, when the product does not touch tightly to the metal substrate. When planning the arrangement, eliminate additional spacers.

Table 2: Vertical force (vertical surface)
MPL 50x50x25 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 18.11 kg / 39.92 pounds
18106.0 g / 177.6 N
1 mm Stal (~0.2) 16.96 kg / 37.39 pounds
16958.0 g / 166.4 N
2 mm Stal (~0.2) 15.81 kg / 34.85 pounds
15808.0 g / 155.1 N
3 mm Stal (~0.2) 14.68 kg / 32.36 pounds
14676.0 g / 144.0 N
5 mm Stal (~0.2) 12.51 kg / 27.58 pounds
12512.0 g / 122.7 N
10 mm Stal (~0.2) 7.97 kg / 17.58 pounds
7974.0 g / 78.2 N
15 mm Stal (~0.2) 4.84 kg / 10.67 pounds
4842.0 g / 47.5 N
20 mm Stal (~0.2) 2.88 kg / 6.35 pounds
2882.0 g / 28.3 N
30 mm Stal (~0.2) 1.03 kg / 2.28 pounds
1034.0 g / 10.1 N
50 mm Stal (~0.2) 0.17 kg / 0.37 pounds
170.0 g / 1.7 N
This section presents the estimated weight limit necessary to start the sliding of the magnet down against a vertical steel wall (considering typical friction). This parameter depends on the separation distance between the magnet and the surface.

Table 3: Vertical assembly (shearing) - vertical pull
MPL 50x50x25 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
27.16 kg / 59.88 pounds
27159.0 g / 266.4 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
18.11 kg / 39.92 pounds
18106.0 g / 177.6 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
9.05 kg / 19.96 pounds
9053.0 g / 88.8 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
45.27 kg / 99.79 pounds
45265.0 g / 444.0 N
When mounting a holder on a vertical plane (e.g., a board), it you can count on only about 1/5 of its nominal power. Gravitational force as well as a weak degree of grip cause that magnets slide down faster than they detach. Want to create a vertical fastening? Note that the sliding force is significantly lower than the perpendicular breakaway force. On a slippery surface, the element will slide down under a noticeably lighter weight. Utilizing a rubberized coating can significantly improve the result.

Table 4: Steel thickness (substrate influence) - power losses
MPL 50x50x25 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
3%
 3.02 kg / 6.65 pounds
3017.7 g / 29.6 N
1 mm
8%
 7.54 kg / 16.63 pounds
7544.2 g / 74.0 N
2 mm
17%
 15.09 kg / 33.26 pounds
15088.3 g / 148.0 N
3 mm
25%
 22.63 kg / 49.90 pounds
22632.5 g / 222.0 N
5 mm
42%
 37.72 kg / 83.16 pounds
37720.8 g / 370.0 N
10 mm
83%
 75.44 kg / 166.32 pounds
75441.7 g / 740.1 N
11 mm
92%
 82.99 kg / 182.95 pounds
82985.8 g / 814.1 N
12 mm
100%
 90.53 kg / 199.58 pounds
90530.0 g / 888.1 N
A thin metal plate is incapable of absorb the full magnetic flux, which weakens actual performance of the holder. If you mount a strong magnet to a thin surface, the flux will pass right through and the pull force will drop sharply. To utilize the maximum of this magnet's power, you need a suitably thick element of metal. The saturation effect causes that on sheet metal structures (e.g., thin profiles), the magnet holds weaker. We recommend selecting the steel thickness according to the table below.

Table 5: Working in heat (stability) - thermal limit
MPL 50x50x25 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 90.53 kg / 199.58 pounds
90530.0 g / 888.1 N
 OK
40 °C -2.2% 88.54 kg / 195.19 pounds
88538.3 g / 868.6 N
 OK
60 °C -4.4% 86.55 kg / 190.80 pounds
86546.7 g / 849.0 N
80 °C -6.6% 84.56 kg / 186.41 pounds
84555.0 g / 829.5 N
100 °C -28.8% 64.46 kg / 142.10 pounds
64457.4 g / 632.3 N
Classic neodymiums lose strength after exceeding the maximum temperature. Watch out for overheating – high temperature can permanently destroy this product. With increasing heat, the neodymium's capacity briefly decreases. Refrain from using this product close to ovens higher than its safe range. Exceeding the critical threshold will cause destruction of magnetic properties.
*Important note: Heat tolerance is determined by both grade, but also on the magnet's shape. Thin magnets (low permeance coefficient) risk losing magnetic properties at lower temperatures than taller cylinders. Warning indicator in the table points to permanent field degradation for this specific geometry.

Table 6: Magnet-Magnet interaction (repulsion) - field collision
MPL 50x50x25 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Lateral Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 263.15 kg / 580.14 pounds
5 403 Gs
39.47 kg / 87.02 pounds
39472 g / 387.2 N
 N/A
1 mm 254.89 kg / 561.94 pounds
8 133 Gs
38.23 kg / 84.29 pounds
38234 g / 375.1 N
 229.40 kg / 505.75 pounds
~0 Gs
2 mm 246.47 kg / 543.38 pounds
7 998 Gs
36.97 kg / 81.51 pounds
36971 g / 362.7 N
 221.83 kg / 489.04 pounds
~0 Gs
3 mm 238.08 kg / 524.88 pounds
7 861 Gs
35.71 kg / 78.73 pounds
35713 g / 350.3 N
 214.28 kg / 472.40 pounds
~0 Gs
5 mm 221.48 kg / 488.27 pounds
7 582 Gs
33.22 kg / 73.24 pounds
33222 g / 325.9 N
 199.33 kg / 439.45 pounds
~0 Gs
10 mm 181.86 kg / 400.93 pounds
6 870 Gs
27.28 kg / 60.14 pounds
27279 g / 267.6 N
 163.67 kg / 360.83 pounds
~0 Gs
20 mm 115.89 kg / 255.49 pounds
5 484 Gs
17.38 kg / 38.32 pounds
17383 g / 170.5 N
 104.30 kg / 229.94 pounds
~0 Gs
50 mm 24.93 kg / 54.97 pounds
2 544 Gs
3.74 kg / 8.25 pounds
3740 g / 36.7 N
 22.44 kg / 49.47 pounds
~0 Gs
60 mm 15.03 kg / 33.14 pounds
1 975 Gs
2.25 kg / 4.97 pounds
2255 g / 22.1 N
 13.53 kg / 29.82 pounds
~0 Gs
70 mm 9.24 kg / 20.37 pounds
1 548 Gs
1.39 kg / 3.05 pounds
1386 g / 13.6 N
 8.31 kg / 18.33 pounds
~0 Gs
80 mm 5.81 kg / 12.80 pounds
1 228 Gs
0.87 kg / 1.92 pounds
871 g / 8.5 N
 5.23 kg / 11.52 pounds
~0 Gs
90 mm 3.74 kg / 8.24 pounds
985 Gs
0.56 kg / 1.24 pounds
560 g / 5.5 N
 3.36 kg / 7.41 pounds
~0 Gs
100 mm 2.46 kg / 5.42 pounds
799 Gs
0.37 kg / 0.81 pounds
369 g / 3.6 N
 2.21 kg / 4.88 pounds
~0 Gs
Two strong neodymiums attract each other from a significantly greater distance than a neodymium and metal combination. Such a system of magnet-to-magnet produces a massive flux and a larger range of action. Designing a strong closure? Apply two magnets instead of a neodymium and a striker plate. Remember that when connecting a pair of magnets, the pinch force is huge. The repulsion force is slightly lower than the attraction, but still impressive.
*Field value for N-N configuration reaches ~0 Gs in the exact middle between the magnets (caused by magnetic field nullification).
Attention: Results show friction force of two same neodymium magnets (friction coefficient ~0.15 for Ni-Ni plating).

Table 7: Safety (HSE) (implants) - precautionary measures
MPL 50x50x25 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 28.0 cm
Hearing aid 10 Gs (1.0 mT) 22.0 cm
Mechanical watch 20 Gs (2.0 mT) 17.0 cm
Mobile device 40 Gs (4.0 mT) 13.5 cm
Remote 50 Gs (5.0 mT) 12.5 cm
Payment card 400 Gs (40.0 mT) 5.0 cm
HDD hard drive 600 Gs (60.0 mT) 4.5 cm
Powerful magnet radiation poses a serious hazard to electronics as well as medical implants. These magnets produce a flux that prevents correct functioning of sensitive medical devices. Be aware: the unseen radiation passes through tissues and plastic. Special caution must be taken by people with cochlear implants and insulin pumps. Also at risk are: mechanical watches, 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 50x50x25 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 18.56 km/h
(5.16 m/s)
 6.23 J
30 mm 23.02 km/h
(6.39 m/s)
 9.58 J
50 mm 23.56 km/h
(6.54 m/s)
 10.04 J
100 mm 23.69 km/h
(6.58 m/s)
 10.15 J
Magnetic elements are delicate – a strong collision with metal can result in shattering. Pay attention to connection velocity – a neodymium left loose turns into a projectile. Impact energy can cause material chips or dangerous crushing to fingers. Be sure to control the product 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 neodymium. Wear safety glasses when handling with large magnets.

Table 9: Surface protection spec
MPL 50x50x25 / N38

Technical parameter Value / Description
Coating type [NiCuNi] Nickel
Layer structure Nickel - Copper - Nickel
Layer thickness 10-20 µm
Salt spray test (SST) ? 24 h
Recommended environment Indoors only (dry)
Neodymium magnets are highly susceptible to corrosion without proper protection. Note the thickness of the protective layer.

Table 10: Construction data (Flux)
MPL 50x50x25 / N38

Parameter Value SI Unit / Description
Magnetic Flux 105 093 Mx 1050.9 µWb
Pc Coefficient 0.54 Low (Flat)
Total magnetic flux passing through the magnet pole. Essential parameter when building generators and motors. Pc value defines the working geometry.

Table 11: Submerged application
MPL 50x50x25 / N38

Environment Effective steel pull Effect
Air (land) 90.53 kg Standard
Water (riverbed) 103.66 kg
(+13.13 kg buoyancy gain)
+14.5%
Rust risk: 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. Vertical hold

*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. Heat tolerance

*For N38 material, the max working temp is 80°C.

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.54

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 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%

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: 020168-2026
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Component MPL 50x50x25 / N38 features a low profile and professional pulling force, making it a perfect solution for building separators and machines. As a block magnet with high power (approx. 90.53 kg), this product is available immediately from our warehouse in Poland. The durable anti-corrosion layer ensures a long lifespan in a dry environment, protecting the core from oxidation.
The key to success is sliding 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 90.53 kg can pinch very hard and cause hematomas. Using a screwdriver risks destroying the coating and permanently cracking the magnet.
They constitute a key element in the production of wind generators and material handling systems. Thanks to the flat surface and high force (approx. 90.53 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. 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 clean and degrease the magnet surface before gluing, which significantly increases the adhesion of the glue to the nickel coating.
Standardly, the MPL 50x50x25 / N38 model is magnetized through the thickness (dimension 25 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 50x50x25 mm, which, at a weight of 468.75 g, makes it an element with high energy density. The key parameter here is the lifting capacity amounting to approximately 90.53 kg (force ~888.15 N), which, with such a flat shape, proves the high power of the material. The product meets the standards for N38 grade magnets.

Advantages and disadvantages of neodymium magnets.

Strengths

Besides their stability, neodymium magnets are valued for these benefits:
  • They have stable power, and over more than ten years their performance decreases symbolically – ~1% (in testing),
  • They have excellent resistance to weakening of magnetic properties as a result of opposing magnetic fields,
  • The use of an refined layer of noble metals (nickel, gold, silver) causes the element to have aesthetics,
  • They show high magnetic induction at the operating surface, which increases their power,
  • Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the shape) even at high temperatures reaching 230°C or more...
  • Possibility of detailed machining as well as adapting to specific applications,
  • Fundamental importance in advanced technology sectors – they are utilized in magnetic memories, electric drive systems, medical equipment, also industrial machines.
  • Thanks to their power density, small magnets offer high operating force, occupying minimum space,

Limitations

Characteristics of disadvantages of neodymium magnets and ways of using them
  • They are prone to damage upon heavy impacts. To avoid cracks, it is worth protecting magnets in special housings. Such protection not only protects the magnet but also improves its resistance to damage
  • When exposed to high temperature, neodymium magnets suffer a drop in force. 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
  • Magnets exposed to a humid environment can corrode. Therefore when using outdoors, we recommend using waterproof magnets made of rubber, plastic or other material resistant to moisture
  • We recommend a housing - magnetic mechanism, due to difficulties in creating threads inside the magnet and complicated shapes.
  • Potential hazard related to microscopic parts of magnets are risky, if swallowed, which becomes key in the context of child health protection. It is also worth noting that small components of these devices are able to be problematic in diagnostics medical after entering the body.
  • Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Lifting parameters

Breakaway strength of the magnet in ideal conditions – what affects it?

Magnet power was defined for the most favorable conditions, taking into account:
  • on a plate made of structural steel, perfectly concentrating the magnetic field
  • with a thickness minimum 10 mm
  • with an ideally smooth touching surface
  • under conditions of no distance (metal-to-metal)
  • during detachment in a direction vertical to the plane
  • in temp. approx. 20°C

Determinants of lifting force in real conditions

Bear in mind that the magnet holding may be lower subject to the following factors, starting with the most relevant:
  • Space between magnet and steel – even a fraction of a millimeter of separation (caused e.g. by veneer or dirt) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
  • Load vector – highest force is reached only during pulling at a 90° angle. The shear force of the magnet along the plate is standardly many times smaller (approx. 1/5 of the lifting capacity).
  • Metal thickness – the thinner the sheet, the weaker the hold. Magnetic flux penetrates through instead of converting into lifting capacity.
  • Steel grade – the best choice is pure iron steel. Cast iron may attract less.
  • Base smoothness – the smoother and more polished the plate, the better the adhesion and stronger the hold. Roughness creates an air distance.
  • Thermal factor – high temperature weakens pulling force. Exceeding the limit temperature can permanently demagnetize the magnet.

Holding force was tested on the plate surface of 20 mm thickness, when the force acted perpendicularly, however under parallel forces the load capacity is reduced by as much as 75%. In addition, even a minimal clearance between the magnet’s surface and the plate reduces the load capacity.

Safety rules for work with neodymium magnets
Machining danger

Powder created during grinding of magnets is combustible. Avoid drilling into magnets without proper cooling and knowledge.

Danger to pacemakers

Individuals with a heart stimulator must keep an absolute distance from magnets. The magnetic field can disrupt the operation of the life-saving device.

Handling guide

Before starting, read the rules. Uncontrolled attraction can destroy the magnet or hurt your hand. Think ahead.

Keep away from children

NdFeB magnets are not suitable for play. Swallowing a few magnets may result in them connecting inside the digestive tract, which poses a critical condition and necessitates urgent medical intervention.

Fragile material

NdFeB magnets are sintered ceramics, meaning they are fragile like glass. Impact of two magnets leads to them cracking into small pieces.

Crushing risk

Danger of trauma: The pulling power is so immense that it can cause blood blisters, pinching, and broken bones. Use thick gloves.

Permanent damage

Keep cool. NdFeB magnets are sensitive to temperature. If you need resistance above 80°C, look for special high-temperature series (H, SH, UH).

Cards and drives

Device Safety: Strong magnets can damage data carriers and delicate electronics (pacemakers, medical aids, mechanical watches).

Nickel coating and allergies

Studies show that nickel (standard magnet coating) is a potent allergen. For allergy sufferers, avoid direct skin contact and select encased magnets.

Impact on smartphones

A powerful magnetic field disrupts the functioning of magnetometers in phones and navigation systems. Keep magnets close to a smartphone to avoid damaging the sensors.

Security! Need more info? Read our article: Are neodymium magnets dangerous?