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MW 38x12 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010060

GTIN/EAN: 5906301810599

Load capacity 32.79 kg / 321.71 N Magnetic Induction 331.00 mT / 3310 Gs
Diameter Ø
38 mm [±0,1 mm]
Height
12 mm [±0,1 mm]
Weight
102.07 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel
see properties »

26.10 zł net / pcs

32.10 zł with VAT (23% VAT) / pcs

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Frequently asked questions

What is the maximum working temperature of a disc magnet?
Standard N-series grades work up to 80 °C. Grades N50, N52 and N54 have a lower limit of 60 °C, because coercivity falls as BHmax rises. Higher temperatures require the H (120 °C), SH (150 °C), UH (180 °C), EH (200 °C) or AH (230 °C) series. Within the working range the magnet loses about 0.11% of its induction per degree, and that loss is reversible.
What is the difference between N38, N42 and N52?
The number after N is the energy product BHmax. Moving from N38 to N52 raises it by several tens of percent, but the real holding force increases by roughly 20%, because force also depends on geometry and on the magnetic circuit. N52 costs about twice as much as N42, so for most mounting work N38–N42 is the best price-to-force ratio.
What is the dimensional tolerance?
±0.1 mm as standard, ±0.05 mm to order. The tolerance is stated next to the dimensions on every product page.

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 - MW 38x12 / N38 - cylindrical magnet

Specification / characteristics - MW 38x12 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010060
GTIN/EAN 5906301810599
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 38 mm [±0,1 mm]
Height 12 mm [±0,1 mm]
Weight 102.07 g
Magnetization Direction ↑ axial
Load capacity ~ ? 32.79 kg / 321.71 N
Magnetic Induction ~ ? 331.00 mT / 3310 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 38x12 / 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 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 magnet - report

These data are the outcome of a physical analysis. Results are based on models for the material Nd2Fe14B. Actual performance might slightly deviate from the simulation results. Use these data as a supplementary guide when designing systems.

Table 1: Static pull force (force vs gap) - power drop
MW 38x12 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 3309 Gs
330.9 mT
 32.79 kg / 72.29 pounds
32790.0 g / 321.7 N
 crushing
1 mm 3175 Gs
317.5 mT
 30.18 kg / 66.54 pounds
30182.9 g / 296.1 N
 crushing
2 mm 3029 Gs
302.9 mT
 27.46 kg / 60.55 pounds
27464.0 g / 269.4 N
 crushing
3 mm 2875 Gs
287.5 mT
 24.74 kg / 54.55 pounds
24742.8 g / 242.7 N
 crushing
5 mm 2556 Gs
255.6 mT
 19.56 kg / 43.13 pounds
19563.2 g / 191.9 N
 crushing
10 mm 1805 Gs
180.5 mT
 9.75 kg / 21.50 pounds
9750.4 g / 95.7 N
 medium risk
15 mm 1229 Gs
122.9 mT
 4.52 kg / 9.96 pounds
4519.1 g / 44.3 N
 medium risk
20 mm 836 Gs
83.6 mT
 2.09 kg / 4.61 pounds
2092.9 g / 20.5 N
 medium risk
30 mm 411 Gs
41.1 mT
 0.51 kg / 1.11 pounds
505.7 g / 5.0 N
 low risk
50 mm 132 Gs
13.2 mT
 0.05 kg / 0.12 pounds
52.4 g / 0.5 N
 low risk
Grip strength drops drastically with every mm of gap. Note that even the smallest gap (e.g., dirt, paint, rust) significantly reduces the pull force. Neodymiums operate optimally during direct contact; distance kills the power. Observe how rapidly the load capacity plummet, when the product does not touch tightly to the steel surface. When designing the arrangement, avoid unnecessary gaps.

Table 2: Slippage load (vertical surface)
MW 38x12 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 6.56 kg / 14.46 pounds
6558.0 g / 64.3 N
1 mm Stal (~0.2) 6.04 kg / 13.31 pounds
6036.0 g / 59.2 N
2 mm Stal (~0.2) 5.49 kg / 12.11 pounds
5492.0 g / 53.9 N
3 mm Stal (~0.2) 4.95 kg / 10.91 pounds
4948.0 g / 48.5 N
5 mm Stal (~0.2) 3.91 kg / 8.62 pounds
3912.0 g / 38.4 N
10 mm Stal (~0.2) 1.95 kg / 4.30 pounds
1950.0 g / 19.1 N
15 mm Stal (~0.2) 0.90 kg / 1.99 pounds
904.0 g / 8.9 N
20 mm Stal (~0.2) 0.42 kg / 0.92 pounds
418.0 g / 4.1 N
30 mm Stal (~0.2) 0.10 kg / 0.22 pounds
102.0 g / 1.0 N
50 mm Stal (~0.2) 0.01 kg / 0.02 pounds
10.0 g / 0.1 N
The table below indicates the theoretical weight limit needed to start the downward movement of the magnet vertically against a upright metal surface (assuming standard friction coefficient). The holding force depends on the air gap between the magnet and the surface.

Table 3: Wall mounting (shearing) - vertical pull
MW 38x12 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
9.84 kg / 21.69 pounds
9837.0 g / 96.5 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
6.56 kg / 14.46 pounds
6558.0 g / 64.3 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
3.28 kg / 7.23 pounds
3279.0 g / 32.2 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
16.40 kg / 36.14 pounds
16395.0 g / 160.8 N
When placing a holder on a upright plane (e.g., a board), it will maintain barely about 20%-30% of nominal attraction strength. Gravity as well as a low friction coefficient influence the fact that holders slip faster than they pop off the substrate. Planning a wall mount? Remember that the shear force is noticeably lower than the maximum static pull force. On a painted metal, the element will slide down under a much lighter cargo. Utilizing a rubberized pad can significantly increase the grip.

Table 4: Steel thickness (substrate influence) - power losses
MW 38x12 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
5%
 1.64 kg / 3.61 pounds
1639.5 g / 16.1 N
1 mm
13%
 4.10 kg / 9.04 pounds
4098.8 g / 40.2 N
2 mm
25%
 8.20 kg / 18.07 pounds
8197.5 g / 80.4 N
3 mm
38%
 12.30 kg / 27.11 pounds
12296.3 g / 120.6 N
5 mm
63%
 20.49 kg / 45.18 pounds
20493.8 g / 201.0 N
10 mm
100%
 32.79 kg / 72.29 pounds
32790.0 g / 321.7 N
11 mm
100%
 32.79 kg / 72.29 pounds
32790.0 g / 321.7 N
12 mm
100%
 32.79 kg / 72.29 pounds
32790.0 g / 321.7 N
A too thin steel is incapable of conduct the entire magnetic field, which squanders power of the holder. If you attach a powerful product to a too thin substrate, the field will pass right through and the pull force will drop sharply. To squeeze 100% of this magnet's power, you need a suitably thick backing of metal. The saturation phenomenon means that on thin elements (e.g., car bodies), the holder shows lower pull force. We recommend selecting the steel cross-section from these parameters.

Table 5: Thermal stability (material behavior) - thermal limit
MW 38x12 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 32.79 kg / 72.29 pounds
32790.0 g / 321.7 N
 OK
40 °C -2.2% 32.07 kg / 70.70 pounds
32068.6 g / 314.6 N
 OK
60 °C -4.4% 31.35 kg / 69.11 pounds
31347.2 g / 307.5 N
80 °C -6.6% 30.63 kg / 67.52 pounds
30625.9 g / 300.4 N
100 °C -28.8% 23.35 kg / 51.47 pounds
23346.5 g / 229.0 N
Standard neodymium magnets irreversibly lose strength past the thermal threshold. Avoid high temperatures – excessive heat can irreversibly destroy this product. As the temperature rises, the magnet's force briefly drops. Refrain from using this product close to ovens exceeding its operating temperature limit. Exceeding the critical threshold will result in permanent loss of magnetism.
*Engineering note: Temperature resistance depends not only on the material grade, and the Permeance Coefficient Pc. Thin magnets (low permeance coefficient) are more susceptible to demagnetization under lower heat stress than taller cylinders. The danger warning in the table signals a risk of irreversible loss for this specific geometry.

Table 6: Magnet-Magnet interaction (repulsion) - forces in the system
MW 38x12 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Lateral Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 76.58 kg / 168.83 pounds
4 859 Gs
11.49 kg / 25.32 pounds
11487 g / 112.7 N
 N/A
1 mm 73.60 kg / 162.27 pounds
6 489 Gs
11.04 kg / 24.34 pounds
11040 g / 108.3 N
 66.24 kg / 146.04 pounds
~0 Gs
2 mm 70.49 kg / 155.40 pounds
6 350 Gs
10.57 kg / 23.31 pounds
10573 g / 103.7 N
 63.44 kg / 139.86 pounds
~0 Gs
3 mm 67.33 kg / 148.43 pounds
6 206 Gs
10.10 kg / 22.26 pounds
10099 g / 99.1 N
 60.59 kg / 133.59 pounds
~0 Gs
5 mm 60.95 kg / 134.38 pounds
5 905 Gs
9.14 kg / 20.16 pounds
9143 g / 89.7 N
 54.86 kg / 120.94 pounds
~0 Gs
10 mm 45.69 kg / 100.73 pounds
5 113 Gs
6.85 kg / 15.11 pounds
6853 g / 67.2 N
 41.12 kg / 90.65 pounds
~0 Gs
20 mm 22.77 kg / 50.20 pounds
3 609 Gs
3.42 kg / 7.53 pounds
3416 g / 33.5 N
 20.49 kg / 45.18 pounds
~0 Gs
50 mm 2.34 kg / 5.17 pounds
1 158 Gs
0.35 kg / 0.78 pounds
352 g / 3.5 N
 2.11 kg / 4.65 pounds
~0 Gs
60 mm 1.18 kg / 2.60 pounds
822 Gs
0.18 kg / 0.39 pounds
177 g / 1.7 N
 1.06 kg / 2.34 pounds
~0 Gs
70 mm 0.63 kg / 1.38 pounds
598 Gs
0.09 kg / 0.21 pounds
94 g / 0.9 N
 0.56 kg / 1.24 pounds
~0 Gs
80 mm 0.35 kg / 0.77 pounds
446 Gs
0.05 kg / 0.12 pounds
52 g / 0.5 N
 0.31 kg / 0.69 pounds
~0 Gs
90 mm 0.20 kg / 0.45 pounds
340 Gs
0.03 kg / 0.07 pounds
30 g / 0.3 N
 0.18 kg / 0.40 pounds
~0 Gs
100 mm 0.12 kg / 0.27 pounds
264 Gs
0.02 kg / 0.04 pounds
18 g / 0.2 N
 0.11 kg / 0.24 pounds
~0 Gs
Two magnetic products attract each other from a wider radius than a magnet and steel combination. The connection of two magnets creates a more powerful interaction and a wider radius of operation. Planning to create a powerful holder? Use a pair of magnets instead of one magnet and a steel. Exercise caution that when bringing together two magnets, the collision energy is massive. The levitation is slightly lower than the attraction, but still impressive.
*The magnetic induction for N-N configuration is approximately ~0 Gs at the midpoint between the magnets (resulting from vector opposition).
Note: Estimates refer to friction force of dual identical magnets (friction ~0.15 for Ni-Ni layer).

Table 7: Safety (HSE) (implants) - warnings
MW 38x12 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 17.0 cm
Hearing aid 10 Gs (1.0 mT) 13.5 cm
Mechanical watch 20 Gs (2.0 mT) 10.5 cm
Phone / Smartphone 40 Gs (4.0 mT) 8.0 cm
Car key 50 Gs (5.0 mT) 7.5 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 poses a large risk to electronics as well as pacemakers. These magnets produce a flux that destroys function of digital equipment. Notice: the unseen radiation passes through tissues and glass. Special caution must be exercised by people with hearing aids and drug dispensers. Also at risk are: automatic timepieces, remotes, membranes, and displays. Do not place the magnet near cards, hard drives, or precise measuring instruments.

Table 8: Impact energy (cracking risk) - warning
MW 38x12 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 22.42 km/h
(6.23 m/s)
 1.98 J
30 mm 25.58 km/h
(7.11 m/s)
 2.58 J
50 mm 25.76 km/h
(7.16 m/s)
 2.61 J
100 mm 25.79 km/h
(7.16 m/s)
 2.62 J
Neodymium magnets are prone to chipping – a strong collision with metal causes immediate chipping. Watch the impact speed – a magnet released freely speeds with massive force. Kinetic force can cause material chips or injury to fingers. Always hold the magnet during mounting so it doesn't hit with great force against the metal. A collision at high speed almost guarantees destruction of the neodymium. Wear safety glasses when working with powerful specimens.

Table 9: Corrosion resistance
MW 38x12 / 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 SST (salt spray test) is an industry standard for determining coating lifespan in harsh conditions. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Construction data (Flux)
MW 38x12 / N38

Parameter Value SI Unit / Description
Magnetic Flux 40 045 Mx 400.5 µWb
Pc Coefficient 0.42 Low (Flat)
Total magnetic flux passing through the pole surface. Key data when building generators as well as sensors. Pc value determines the magnet's operating point.

Table 11: Hydrostatics and buoyancy
MW 38x12 / N38

Environment Effective steel pull Effect
Air (land) 32.79 kg Standard
Water (riverbed) 37.54 kg
(+4.75 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.
Contrary to myths, water does not block the magnetic field. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Vertical hold

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

2. Steel thickness impact

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

3. Temperature resistance

*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) = 0.42

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

Material specification

iron (Fe) 64% – 68%
neodymium (Nd) 29% – 32%
boron (B) 1.1% – 1.2%
dysprosium (Dy) 0.5% – 2.0%
coating (Ni-Cu-Ni) < 0.05%

Sustainability

recyclability (EoL) 100%
recycled raw materials ~10% (pre-cons)
carbon footprint low / zredukowany
waste code (EWC) 16 02 16
Safety card (GPSR)
responsible entity
Dhit sp. z o.o.
ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki
tel: +48 22 499 98 98 | e-mail: bok@dhit.pl
batch number/type
id: 010060-2026
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The offered product is an extremely powerful cylindrical magnet, composed of advanced NdFeB material, which, with dimensions of Ø38x12 mm, guarantees the highest energy density. The MW 38x12 / N38 model features high dimensional repeatability and industrial build quality, making it a perfect solution for professional engineers and designers. As a magnetic rod with significant force (approx. 32.79 kg), this product is available off-the-shelf from our European logistics center, ensuring rapid order fulfillment. Moreover, its Ni-Cu-Ni coating secures it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.
This model is created for building generators, advanced Hall effect sensors, and efficient filters, where maximum induction on a small surface counts. Thanks to the high power of 321.71 N with a weight of only 102.07 g, this cylindrical magnet is indispensable in miniature devices and wherever every gram matters.
Due to the delicate structure of the ceramic sinter, you must not use force-fitting (so-called press-fit), as this risks chipping the coating of this precision component. To ensure long-term durability in automation, specialized industrial adhesives are used, which are safe for nickel and fill the gap, guaranteeing durability of the connection.
Grade N38 is the most frequently chosen standard for industrial neodymium magnets, offering a great economic balance and operational stability. If you need the strongest magnets in the same volume (Ø38x12), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our store.
This model is characterized by dimensions Ø38x12 mm, which, at a weight of 102.07 g, makes it an element with high magnetic energy density. The key parameter here is the holding force amounting to approximately 32.79 kg (force ~321.71 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.
Standardly, the magnetic axis runs through the center of the cylinder, causing the greatest attraction force to occur on the bases with a diameter of 38 mm. Such an arrangement is standard when connecting magnets in stacks (e.g., in filters) or when mounting in sockets at the bottom of a hole. On request, we can also produce versions magnetized diametrically if your project requires it.

Strengths and weaknesses of Nd2Fe14B magnets.

Benefits

Apart from their notable power, neodymium magnets have these key benefits:
  • They have stable power, and over around 10 years their attraction force decreases symbolically – ~1% (in testing),
  • They possess excellent resistance to weakening of magnetic properties as a result of opposing magnetic fields,
  • A magnet with a metallic silver surface looks better,
  • The surface of neodymium magnets generates a unique magnetic field – this is a distinguishing feature,
  • Through (adequate) combination of ingredients, they can achieve high thermal resistance, enabling functioning at temperatures approaching 230°C and above...
  • Considering the possibility of free molding and adaptation to specialized projects, neodymium magnets can be modeled in a wide range of forms and dimensions, which expands the range of possible applications,
  • Fundamental importance in advanced technology sectors – they find application in magnetic memories, electric motors, medical equipment, and industrial machines.
  • Compactness – despite small sizes they generate large force, making them ideal for precision applications

Cons

Disadvantages of neodymium magnets:
  • To avoid cracks under impact, we recommend using special steel housings. Such a solution secures the magnet and simultaneously increases its durability.
  • Neodymium magnets decrease their strength under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
  • They rust in a humid environment. For use outdoors we advise using waterproof magnets e.g. in rubber, plastic
  • We suggest cover - magnetic mount, due to difficulties in producing nuts inside the magnet and complex forms.
  • Possible danger related to microscopic parts of magnets pose a threat, in case of ingestion, which is particularly important in the context of child safety. Furthermore, small elements of these devices are able to complicate diagnosis medical in case of swallowing.
  • Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Lifting parameters

Detachment force of the magnet in optimal conditions – what it depends on?

Magnet power was determined for the most favorable conditions, including:
  • on a plate made of mild steel, effectively closing the magnetic field
  • whose thickness equals approx. 10 mm
  • characterized by lack of roughness
  • without the slightest insulating layer between the magnet and steel
  • for force acting at a right angle (pull-off, not shear)
  • at temperature approx. 20 degrees Celsius

Practical aspects of lifting capacity – factors

In real-world applications, the actual holding force is determined by a number of factors, listed from the most important:
  • Distance – existence of any layer (rust, tape, gap) acts as an insulator, which reduces capacity rapidly (even by 50% at 0.5 mm).
  • Force direction – catalog parameter refers to detachment vertically. When slipping, the magnet holds significantly lower power (typically approx. 20-30% of maximum force).
  • Wall thickness – the thinner the sheet, the weaker the hold. Magnetic flux passes through the material instead of converting into lifting capacity.
  • Metal type – not every steel reacts the same. High carbon content worsen the interaction with the magnet.
  • Surface finish – ideal contact is possible only on smooth steel. Any scratches and bumps create air cushions, reducing force.
  • Temperature influence – hot environment reduces magnetic field. Exceeding the limit temperature can permanently damage the magnet.

Lifting capacity was assessed by applying a steel plate with a smooth surface of suitable thickness (min. 20 mm), under perpendicular pulling force, however under shearing force the lifting capacity is smaller. Additionally, even a small distance between the magnet and the plate reduces the holding force.

Precautions when working with NdFeB magnets
Dust explosion hazard

Combustion risk: Rare earth powder is highly flammable. Do not process magnets without safety gear as this may cause fire.

Respect the power

Before use, check safety instructions. Uncontrolled attraction can break the magnet or hurt your hand. Be predictive.

No play value

Adult use only. Small elements pose a choking risk, causing severe trauma. Store out of reach of kids and pets.

Heat sensitivity

Avoid heat. Neodymium magnets are susceptible to temperature. If you require resistance above 80°C, look for special high-temperature series (H, SH, UH).

Protective goggles

NdFeB magnets are sintered ceramics, meaning they are very brittle. Collision of two magnets leads to them shattering into small pieces.

Pacemakers

People with a ICD must keep an safe separation from magnets. The magnetic field can interfere with the functioning of the implant.

Crushing force

Protect your hands. Two large magnets will snap together instantly with a force of several hundred kilograms, destroying everything in their path. Be careful!

Allergic reactions

Nickel alert: The Ni-Cu-Ni coating contains nickel. If redness occurs, cease handling magnets and wear gloves.

Magnetic interference

An intense magnetic field negatively affects the operation of magnetometers in phones and navigation systems. Keep magnets near a smartphone to prevent damaging the sensors.

Cards and drives

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

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