← previous
next →
Product available Ships tomorrow

MW 40x15 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010067

GTIN/EAN: 5906301810667

Diameter Ø

40 mm [±0,1 mm]

Height

15 mm [±0,1 mm]

Weight

141.37 g

Magnetization Direction

↑ axial

Load capacity

42.64 kg / 418.33 N

Magnetic Induction

371.91 mT / 3719 Gs

Coating

[NiCuNi] Nickel

technical specifications »

65.93 ZŁ with VAT / pcs + price for transport

53.60 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?
price from 1 pcs
53.60 ZŁ
65.93 ZŁ
price from 20 pcs
50.38 ZŁ
61.97 ZŁ
price from 50 pcs
47.17 ZŁ
58.02 ZŁ
Carbon Footprint – environmental impact GPSR Regulation – product safety
Want to negotiate?

Call us now +48 888 99 98 98 if you prefer send us a note through inquiry form our website.
Weight as well as shape of neodymium magnets can be reviewed using our power calculator.

Order by 14:00 and we’ll ship today!

Technical - MW 40x15 / N38 - cylindrical magnet

Specification / characteristics - MW 40x15 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010067
GTIN/EAN 5906301810667
Production/Distribution Dhit sp. z o.o.
ul. Zielona 14 05-850 Ożarów Mazowiecki PL
Country of origin Poland / China / Germany
Customs code 85059029
Diameter Ø 40 mm [±0,1 mm]
Height 15 mm [±0,1 mm]
Weight 141.37 g
Magnetization Direction ↑ axial
Load capacity ~ ? 42.64 kg / 418.33 N
Magnetic Induction ~ ? 371.91 mT / 3719 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 40x15 / N38 - cylindrical magnet
properties values units
remenance Br [min. - max.] ? 12.2-12.6 kGs
remenance Br [min. - max.] ? 1220-1260 mT
coercivity bHc ? 10.8-11.5 kOe
coercivity bHc ? 860-915 kA/m
actual internal force iHc ≥ 12 kOe
actual internal force iHc ≥ 955 kA/m
energy density [min. - max.] ? 36-38 BH max MGOe
energy density [min. - max.] ? 287-303 BH max KJ/m
max. temperature ? ≤ 80 °C

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C
properties values units
Vickers hardness ≥550 Hv
Density ≥7.4 g/cm3
Curie Temperature TC 312 - 380 °C
Curie Temperature TF 593 - 716 °F
Specific resistance 150 μΩ⋅cm
Bending strength 250 MPa
Compressive strength 1000~1100 MPa
Thermal expansion parallel (∥) to orientation (M) (3-4) x 10-6 °C-1
Thermal expansion perpendicular (⊥) to orientation (M) -(1-3) x 10-6 °C-1
Young's modulus 1.7 x 104 kg/mm²

Engineering analysis of the product - data

The following values represent the result of a engineering analysis. Results are based on models for the class Nd2Fe14B. Actual parameters might slightly differ. Please consider these calculations as a reference point for designers.

Table 1: Static force (force vs gap) - characteristics
MW 40x15 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 3718 Gs
371.8 mT
 42.64 kg / 94.00 lbs
42640.0 g / 418.3 N
 dangerous!
1 mm 3563 Gs
356.3 mT
 39.16 kg / 86.33 lbs
39159.5 g / 384.2 N
 dangerous!
2 mm 3398 Gs
339.8 mT
 35.62 kg / 78.52 lbs
35617.1 g / 349.4 N
 dangerous!
3 mm 3228 Gs
322.8 mT
 32.13 kg / 70.84 lbs
32130.5 g / 315.2 N
 dangerous!
5 mm 2880 Gs
288.0 mT
 25.58 kg / 56.40 lbs
25584.2 g / 251.0 N
 dangerous!
10 mm 2069 Gs
206.9 mT
 13.20 kg / 29.09 lbs
13196.7 g / 129.5 N
 dangerous!
15 mm 1439 Gs
143.9 mT
 6.38 kg / 14.07 lbs
6383.1 g / 62.6 N
 medium risk
20 mm 999 Gs
99.9 mT
 3.08 kg / 6.79 lbs
3077.9 g / 30.2 N
 medium risk
30 mm 507 Gs
50.7 mT
 0.79 kg / 1.75 lbs
792.4 g / 7.8 N
 safe
50 mm 169 Gs
16.9 mT
 0.09 kg / 0.19 lbs
88.4 g / 0.9 N
 safe
Magnetic force decreases significantly per each millimeter of distance. Remember that even the smallest gap (e.g., dirt, paint, veneer) noticeably reduces the pull force. Magnetic products hold optimally in perfect adhesion; air break kills the power. See how rapidly the load capacity fall, when the magnet does not adhere directly to the metal substrate. When planning the mounting, avoid additional spacers.

Table 2: Slippage force (wall)
MW 40x15 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 8.53 kg / 18.80 lbs
8528.0 g / 83.7 N
1 mm Stal (~0.2) 7.83 kg / 17.27 lbs
7832.0 g / 76.8 N
2 mm Stal (~0.2) 7.12 kg / 15.71 lbs
7124.0 g / 69.9 N
3 mm Stal (~0.2) 6.43 kg / 14.17 lbs
6426.0 g / 63.0 N
5 mm Stal (~0.2) 5.12 kg / 11.28 lbs
5116.0 g / 50.2 N
10 mm Stal (~0.2) 2.64 kg / 5.82 lbs
2640.0 g / 25.9 N
15 mm Stal (~0.2) 1.28 kg / 2.81 lbs
1276.0 g / 12.5 N
20 mm Stal (~0.2) 0.62 kg / 1.36 lbs
616.0 g / 6.0 N
30 mm Stal (~0.2) 0.16 kg / 0.35 lbs
158.0 g / 1.5 N
50 mm Stal (~0.2) 0.02 kg / 0.04 lbs
18.0 g / 0.2 N
This section presents the estimated weight limit needed to initiate the sliding of the magnet vertically on a vertical steel wall (assuming standard friction). This parameter depends on the distance between the magnet and the metal.

Table 3: Vertical assembly (sliding) - vertical pull
MW 40x15 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
12.79 kg / 28.20 lbs
12792.0 g / 125.5 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
8.53 kg / 18.80 lbs
8528.0 g / 83.7 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
4.26 kg / 9.40 lbs
4264.0 g / 41.8 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
21.32 kg / 47.00 lbs
21320.0 g / 209.1 N
When placing a element on a vertical plane (e.g., a board), it will maintain barely about 1/5 of nominal attraction strength. Gravitational force and a low friction coefficient influence the fact that holders slip easier than they pull off. Planning a wall mount? Note that the sliding force is much weaker than the perpendicular breakaway force. On a painted metal, the magnet will give way down under a noticeably lighter load. Application of an anti-slip pad can significantly raise the stability.

Table 4: Steel thickness (substrate influence) - sheet metal selection
MW 40x15 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
5%
 2.13 kg / 4.70 lbs
2132.0 g / 20.9 N
1 mm
13%
 5.33 kg / 11.75 lbs
5330.0 g / 52.3 N
2 mm
25%
 10.66 kg / 23.50 lbs
10660.0 g / 104.6 N
3 mm
38%
 15.99 kg / 35.25 lbs
15990.0 g / 156.9 N
5 mm
63%
 26.65 kg / 58.75 lbs
26650.0 g / 261.4 N
10 mm
100%
 42.64 kg / 94.00 lbs
42640.0 g / 418.3 N
11 mm
100%
 42.64 kg / 94.00 lbs
42640.0 g / 418.3 N
12 mm
100%
 42.64 kg / 94.00 lbs
42640.0 g / 418.3 N
A thin metal plate is incapable of take in the full magnetic flux, which squanders power of the magnet. If you install a neodymium to a weak sheet, the flux will pass right through and the pull force will drop sharply. To squeeze 100% of this magnet's potential, you need a suitably thick element of steel. The material oversaturation means that on delicate walls (e.g., car bodies), the holder works worse. We recommend selecting the steel dimension according to the table below.

Table 5: Working in heat (stability) - resistance threshold
MW 40x15 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 42.64 kg / 94.00 lbs
42640.0 g / 418.3 N
 OK
40 °C -2.2% 41.70 kg / 91.94 lbs
41701.9 g / 409.1 N
 OK
60 °C -4.4% 40.76 kg / 89.87 lbs
40763.8 g / 399.9 N
80 °C -6.6% 39.83 kg / 87.80 lbs
39825.8 g / 390.7 N
100 °C -28.8% 30.36 kg / 66.93 lbs
30359.7 g / 297.8 N
Classic neodymiums irreversibly lose strength above the temperature limit. Watch out for overheating – excessive heat can permanently damage this product. With every degree above norm, the magnet's power temporarily lowers. Do not use this magnet in hot environments exceeding its safe range. Too high temperature will result in destruction of magnetic properties.
*Technical advisory: Thermal stability is determined by both grade, but also on the magnet's shape. Thin magnets (low permeance coefficient) may lose charge permanently sooner than taller cylinders. The danger warning in the table signals a risk of irreversible loss for this specific geometry.

Table 6: Two magnets (attraction) - field collision
MW 40x15 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Strength (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 107.12 kg / 236.16 lbs
5 156 Gs
16.07 kg / 35.42 lbs
16068 g / 157.6 N
 N/A
1 mm 102.82 kg / 226.67 lbs
7 286 Gs
15.42 kg / 34.00 lbs
15422 g / 151.3 N
 92.53 kg / 204.00 lbs
~0 Gs
2 mm 98.38 kg / 216.89 lbs
7 127 Gs
14.76 kg / 32.53 lbs
14757 g / 144.8 N
 88.54 kg / 195.20 lbs
~0 Gs
3 mm 93.92 kg / 207.06 lbs
6 964 Gs
14.09 kg / 31.06 lbs
14088 g / 138.2 N
 84.53 kg / 186.36 lbs
~0 Gs
5 mm 85.07 kg / 187.55 lbs
6 627 Gs
12.76 kg / 28.13 lbs
12760 g / 125.2 N
 76.56 kg / 168.79 lbs
~0 Gs
10 mm 64.27 kg / 141.70 lbs
5 761 Gs
9.64 kg / 21.25 lbs
9641 g / 94.6 N
 57.85 kg / 127.53 lbs
~0 Gs
20 mm 33.15 kg / 73.09 lbs
4 137 Gs
4.97 kg / 10.96 lbs
4973 g / 48.8 N
 29.84 kg / 65.78 lbs
~0 Gs
50 mm 3.84 kg / 8.47 lbs
1 408 Gs
0.58 kg / 1.27 lbs
576 g / 5.7 N
 3.46 kg / 7.62 lbs
~0 Gs
60 mm 1.99 kg / 4.39 lbs
1 014 Gs
0.30 kg / 0.66 lbs
299 g / 2.9 N
 1.79 kg / 3.95 lbs
~0 Gs
70 mm 1.08 kg / 2.38 lbs
747 Gs
0.16 kg / 0.36 lbs
162 g / 1.6 N
 0.97 kg / 2.14 lbs
~0 Gs
80 mm 0.61 kg / 1.35 lbs
563 Gs
0.09 kg / 0.20 lbs
92 g / 0.9 N
 0.55 kg / 1.22 lbs
~0 Gs
90 mm 0.36 kg / 0.80 lbs
432 Gs
0.05 kg / 0.12 lbs
54 g / 0.5 N
 0.33 kg / 0.72 lbs
~0 Gs
100 mm 0.22 kg / 0.49 lbs
339 Gs
0.03 kg / 0.07 lbs
33 g / 0.3 N
 0.20 kg / 0.44 lbs
~0 Gs
Two strong neodymiums attract each other from a much further distance than a magnet and steel setup. The connection of magnet-to-magnet generates a stronger field and a further horizon of performance. Designing a powerful holder? Use a pair of magnets instead of one magnet and a steel. Exercise caution that when attracting two neodymiums, the pinch force is massive. The levitation is slightly lower than the attraction, but still significant.
*The magnetic induction between like poles is approximately ~0 Gs in the exact middle of the gap (resulting from vector opposition).
Important: Estimates refer to sliding force of a pair of same neodymium magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Protective zones (electronics) - warnings
MW 40x15 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 19.0 cm
Hearing aid 10 Gs (1.0 mT) 15.0 cm
Mechanical watch 20 Gs (2.0 mT) 11.5 cm
Phone / Smartphone 40 Gs (4.0 mT) 9.0 cm
Remote 50 Gs (5.0 mT) 8.5 cm
Payment card 400 Gs (40.0 mT) 3.5 cm
HDD hard drive 600 Gs (60.0 mT) 3.0 cm
A strong magnetic field is a real danger to electronics as well as pacemakers. These NdFeB products generate a field that prevents correct functioning of sensitive medical devices. Remember: the invisible magnetic field passes through tissues and glass. Increased vigilance must be taken by people with cochlear implants and drug dispensers. The risk also applies to: automatic timepieces, remotes, membranes, and displays. Avoid contact with magnetic cards, HDD media, or sensitive navigation tools.

Table 8: Dynamics (kinetic energy) - warning
MW 40x15 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 20.63 km/h
(5.73 m/s)
 2.32 J
30 mm 30.69 km/h
(8.52 m/s)
 5.14 J
50 mm 39.22 km/h
(10.89 m/s)
 8.39 J
100 mm 55.39 km/h
(15.39 m/s)
 16.73 J
Magnetic elements are delicate – a collision with steel risks their cracking. Pay attention to connection velocity – a magnet released freely speeds with massive force. Impact energy can cause material chips or painful pinches to fingers. Be sure to control the product during mounting so it doesn't slam with momentum against the steel surface. A collision at high speed almost guarantees destruction of the magnet. Wear eye protection when handling with large magnets.

Table 9: Corrosion resistance
MW 40x15 / 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)
MW 40x15 / N38

Parameter Value SI Unit / Description
Magnetic Flux 48 650 Mx 486.5 µWb
Pc Coefficient 0.48 Low (Flat)
Flux value emitted by the pole surface. Essential parameter in coil applications and motors. Pc value determines the magnet's operating point.

Table 11: Submerged application
MW 40x15 / N38

Environment Effective steel pull Effect
Air (land) 42.64 kg Standard
Water (riverbed) 48.82 kg
(+6.18 kg buoyancy gain)
+14.5%
Warning: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.
Water displaces steel, making heavy objects slightly lighter. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.
1. Sliding resistance

*Warning: On a vertical surface, the magnet retains merely a fraction of its nominal pull.

2. Plate thickness effect

*Thin metal sheet (e.g. 0.5mm PC case) drastically weakens the holding force.

3. Heat tolerance

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

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

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

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.

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%
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: 010067-2026
Magnet Unit Converter
Pulling force
Field Strength
Simply fill in one field, and the converter fill in everything else for you.

Other proposals

AM klisza magnetyczna 50 x 50 mm - magnetic accessories
Product available Ships tomorrow

AM klisza magnetyczna 50 x 50 mm - magnetic accessories

24.60 ZŁ brutto / pcs
UMH 25x8x45 [M5] / N38 - magnetic holder with hook
Product available Ships tomorrow

UMH 25x8x45 [M5] / N38 - magnetic holder with hook

14.49 ZŁ brutto / pcs
UMP 97x40 [M8+M10] GW F300 kg / N38 - search holder
Product available Ships tomorrow

UMP 97x40 [M8+M10] GW F300 kg / N38 - search holder

300.00 ZŁ brutto / pcs
UMGGZ 66x8.5 [M8] GZ / N38 - rubber magnetic holder external thread
Product available Ships tomorrow

UMGGZ 66x8.5 [M8] GZ / N38 - rubber magnetic holder external thread

23.37 ZŁ brutto / pcs
This product is an incredibly powerful cylinder magnet, composed of advanced NdFeB material, which, with dimensions of Ø40x15 mm, guarantees the highest energy density. This specific item boasts an accuracy of ±0.1mm and industrial build quality, making it a perfect solution for the most demanding engineers and designers. As a cylindrical magnet with significant force (approx. 42.64 kg), this product is available off-the-shelf from our European logistics center, ensuring rapid order fulfillment. Moreover, its triple-layer Ni-Cu-Ni coating secures it against corrosion in typical operating conditions, ensuring an aesthetic appearance and durability for years.
This model is perfect for building electric motors, advanced sensors, and efficient magnetic separators, where maximum induction on a small surface counts. Thanks to the pull force of 418.33 N with a weight of only 141.37 g, this rod is indispensable in electronics and wherever every gram matters.
Since our magnets have a very precise dimensions, the best method is to glue them into holes with a slightly larger diameter (e.g., 40.1 mm) using two-component epoxy glues. To ensure long-term durability in industry, anaerobic resins are used, which do not react with the nickel coating and fill the gap, guaranteeing durability of the connection.
Magnets N38 are suitable for the majority of applications in automation and machine building, where extreme miniaturization with maximum force is not required. If you need even stronger magnets in the same volume (Ø40x15), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our warehouse.
This model is characterized by dimensions Ø40x15 mm, which, at a weight of 141.37 g, makes it an element with impressive magnetic energy density. The key parameter here is the lifting capacity amounting to approximately 42.64 kg (force ~418.33 N), which, with such compact dimensions, proves the high grade of the NdFeB material. The product has a [NiCuNi] coating, which protects the surface against oxidation, giving it an aesthetic, silvery shine.
This cylinder is magnetized axially (along the height of 15 mm), which means that the N and S poles are located on the flat, circular surfaces. Thanks to this, the magnet can be easily glued into a hole and achieve a strong field on the front surface. On request, we can also produce versions magnetized through the diameter if your project requires it.

Pros and cons of rare earth magnets.

Benefits

Besides their magnetic performance, neodymium magnets are valued for these benefits:
  • They do not lose magnetism, even during around ten years – the drop in lifting capacity is only ~1% (based on measurements),
  • Neodymium magnets prove to be exceptionally resistant to magnetic field loss caused by external field sources,
  • By applying a lustrous layer of silver, the element presents an elegant look,
  • The surface of neodymium magnets generates a powerful magnetic field – this is a distinguishing feature,
  • Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can work (depending on the shape) even at a temperature of 230°C or more...
  • Thanks to the ability of precise forming and adaptation to specialized needs, NdFeB magnets can be manufactured in a variety of shapes and sizes, which increases their versatility,
  • Key role in modern technologies – they find application in HDD drives, electric drive systems, diagnostic systems, as well as industrial machines.
  • Thanks to efficiency per cm³, small magnets offer high operating force, in miniature format,

Cons

Disadvantages of NdFeB magnets:
  • They are fragile upon too strong impacts. To avoid cracks, it is worth protecting magnets using a steel holder. Such protection not only protects the magnet but also increases its resistance to damage
  • Neodymium magnets lose force when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of power (a factor is the shape as well as dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are very resistant to heat
  • Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material resistant to moisture, when using outdoors
  • Due to limitations in producing threads and complex forms in magnets, we recommend using casing - magnetic mechanism.
  • Health risk resulting from small fragments of magnets are risky, if swallowed, which gains importance in the context of child health protection. Furthermore, small components of these products can disrupt the diagnostic process medical after entering the body.
  • Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Lifting parameters

Optimal lifting capacity of a neodymium magnet – what affects it?

The force parameter is a theoretical maximum value executed under the following configuration:
  • with the use of a yoke made of low-carbon steel, guaranteeing full magnetic saturation
  • whose transverse dimension is min. 10 mm
  • with a plane perfectly flat
  • without any clearance between the magnet and steel
  • during pulling in a direction vertical to the mounting surface
  • at standard ambient temperature

Key elements affecting lifting force

In real-world applications, the real power is determined by a number of factors, listed from most significant:
  • Gap between surfaces – every millimeter of separation (caused e.g. by veneer or dirt) diminishes the pulling force, often by half at just 0.5 mm.
  • Pull-off angle – remember that the magnet has greatest strength perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the nominal value.
  • Wall thickness – thin material does not allow full use of the magnet. Part of the magnetic field passes through the material instead of converting into lifting capacity.
  • Steel grade – the best choice is pure iron steel. Stainless steels may generate lower lifting capacity.
  • Surface structure – the more even the plate, the better the adhesion and higher the lifting capacity. Unevenness creates an air distance.
  • Thermal environment – heating the magnet causes a temporary drop of induction. Check the thermal limit for a given model.

Lifting capacity was assessed by applying a smooth steel plate of suitable thickness (min. 20 mm), under perpendicular detachment force, however under attempts to slide the magnet the load capacity is reduced by as much as 75%. Additionally, even a slight gap between the magnet and the plate lowers the holding force.

Precautions when working with NdFeB magnets
Danger to the youngest

Always keep magnets away from children. Risk of swallowing is high, and the consequences of magnets clamping inside the body are very dangerous.

Threat to electronics

Powerful magnetic fields can destroy records on credit cards, hard drives, and storage devices. Keep a distance of min. 10 cm.

Magnet fragility

Despite metallic appearance, the material is delicate and cannot withstand shocks. Avoid impacts, as the magnet may crumble into sharp, dangerous pieces.

Crushing risk

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

Heat warning

Regular neodymium magnets (N-type) undergo demagnetization when the temperature surpasses 80°C. Damage is permanent.

GPS Danger

Note: neodymium magnets produce a field that confuses precision electronics. Keep a safe distance from your phone, device, and navigation systems.

Implant safety

Health Alert: Strong magnets can deactivate heart devices and defibrillators. Do not approach if you have medical devices.

Dust explosion hazard

Powder generated during grinding of magnets is self-igniting. Do not drill into magnets without proper cooling and knowledge.

Sensitization to coating

Studies show that nickel (standard magnet coating) is a strong allergen. If you have an allergy, prevent touching magnets with bare hands and select coated magnets.

Immense force

Use magnets consciously. Their immense force can shock even experienced users. Be vigilant and do not underestimate their force.

Safety First! Details about risks in the article: Magnet Safety Guide.