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MW 20x1.5 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010039

GTIN/EAN: 5906301810384

5.00
Load capacity 0.97 kg / 9.50 N Magnetic Induction 91.96 mT / 920 Gs
Diameter Ø
20 mm [±0,1 mm]
Height
1.5 mm [±0,1 mm]
Weight
3.53 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

technical specifications »

1.280 zł net / pcs

1.574 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 data of the product - MW 20x1.5 / N38 - cylindrical magnet

Specification / characteristics - MW 20x1.5 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010039
GTIN/EAN 5906301810384
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 20 mm [±0,1 mm]
Height 1.5 mm [±0,1 mm]
Weight 3.53 g
Magnetization Direction ↑ axial
Load capacity ~ ? 0.97 kg / 9.50 N
Magnetic Induction ~ ? 91.96 mT / 920 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 20x1.5 / N38 - cylindrical 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 modeling of the magnet - data

Presented information represent the outcome of a engineering calculation. Results were calculated on algorithms for the class Nd2Fe14B. Operational conditions might slightly differ from theoretical values. Treat these calculations as a reference point during assembly planning.

Table 1: Static pull force (pull vs gap) - characteristics
MW 20x1.5 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 920 Gs
92.0 mT
 0.97 kg / 2.14 lbs
970.0 g / 9.5 N
 low risk
1 mm 887 Gs
88.7 mT
 0.90 kg / 1.99 lbs
902.2 g / 8.9 N
 low risk
2 mm 832 Gs
83.2 mT
 0.79 kg / 1.75 lbs
794.6 g / 7.8 N
 low risk
3 mm 763 Gs
76.3 mT
 0.67 kg / 1.47 lbs
667.4 g / 6.5 N
 low risk
5 mm 606 Gs
60.6 mT
 0.42 kg / 0.93 lbs
421.6 g / 4.1 N
 low risk
10 mm 294 Gs
29.4 mT
 0.10 kg / 0.22 lbs
99.5 g / 1.0 N
 low risk
15 mm 144 Gs
14.4 mT
 0.02 kg / 0.05 lbs
23.6 g / 0.2 N
 low risk
20 mm 76 Gs
7.6 mT
 0.01 kg / 0.01 lbs
6.7 g / 0.1 N
 low risk
30 mm 28 Gs
2.8 mT
 0.00 kg / 0.00 lbs
0.9 g / 0.0 N
 low risk
50 mm 7 Gs
0.7 mT
 0.00 kg / 0.00 lbs
0.1 g / 0.0 N
 low risk
Magnetic force weakens significantly with every subsequent millimeter of spacing. Keep in mind that even a microscopic distance (e.g., dirt, varnish, rust) strongly diminishes the holding power. Magnetic products operate most effectively in perfect adhesion; distance kills the force. Notice how quickly the pull force fall, when the product does not touch flatly to the steel surface. When planning the arrangement, eliminate additional spacers.

Table 2: Shear hold (vertical surface)
MW 20x1.5 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.19 kg / 0.43 lbs
194.0 g / 1.9 N
1 mm Stal (~0.2) 0.18 kg / 0.40 lbs
180.0 g / 1.8 N
2 mm Stal (~0.2) 0.16 kg / 0.35 lbs
158.0 g / 1.5 N
3 mm Stal (~0.2) 0.13 kg / 0.30 lbs
134.0 g / 1.3 N
5 mm Stal (~0.2) 0.08 kg / 0.19 lbs
84.0 g / 0.8 N
10 mm Stal (~0.2) 0.02 kg / 0.04 lbs
20.0 g / 0.2 N
15 mm Stal (~0.2) 0.00 kg / 0.01 lbs
4.0 g / 0.0 N
20 mm Stal (~0.2) 0.00 kg / 0.00 lbs
2.0 g / 0.0 N
30 mm Stal (~0.2) 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
50 mm Stal (~0.2) 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
This section shows the theoretical weight limit required to cause the slippage of the magnet down on a vertical steel wall (assuming typical friction). This parameter is a function of the air gap between the magnet and the surface.

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MW 20x1.5 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.29 kg / 0.64 lbs
291.0 g / 2.9 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.19 kg / 0.43 lbs
194.0 g / 1.9 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.10 kg / 0.21 lbs
97.0 g / 1.0 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
0.49 kg / 1.07 lbs
485.0 g / 4.8 N
When placing a element on a vertical wall (e.g., a fridge), it will maintain barely about 1/5 of its nominal power. Gravitational force and a low friction coefficient cause that magnets slide down faster than they detach. Designing a hanger? Note that the shear force is noticeably lower than the perpendicular breakaway force. On a slippery surface, the holder will slip down under a significantly smaller load. Utilizing a rubberized pad can effectively raise the stability.

Table 4: Steel thickness (substrate influence) - power losses
MW 20x1.5 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.10 kg / 0.21 lbs
97.0 g / 1.0 N
1 mm
25%
 0.24 kg / 0.53 lbs
242.5 g / 2.4 N
2 mm
50%
 0.49 kg / 1.07 lbs
485.0 g / 4.8 N
3 mm
75%
 0.73 kg / 1.60 lbs
727.5 g / 7.1 N
5 mm
100%
 0.97 kg / 2.14 lbs
970.0 g / 9.5 N
10 mm
100%
 0.97 kg / 2.14 lbs
970.0 g / 9.5 N
11 mm
100%
 0.97 kg / 2.14 lbs
970.0 g / 9.5 N
12 mm
100%
 0.97 kg / 2.14 lbs
970.0 g / 9.5 N
A too thin steel cannot absorb the entire magnetic field, which weakens actual performance of the holder. If you install a neodymium to a too thin substrate, the flux will penetrate right through and the attraction force will be weaker. To squeeze 100% of this neodymium's power, you require a sufficiently solid element of metal. The saturation effect causes that on delicate walls (e.g., appliance housings), the magnet holds weaker. We advise picking the steel thickness based on the following data.

Table 5: Thermal stability (stability) - thermal limit
MW 20x1.5 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 0.97 kg / 2.14 lbs
970.0 g / 9.5 N
 OK
40 °C -2.2% 0.95 kg / 2.09 lbs
948.7 g / 9.3 N
 OK
60 °C -4.4% 0.93 kg / 2.04 lbs
927.3 g / 9.1 N
80 °C -6.6% 0.91 kg / 2.00 lbs
906.0 g / 8.9 N
100 °C -28.8% 0.69 kg / 1.52 lbs
690.6 g / 6.8 N
Classic neodymiums lose strength after exceeding the maximum temperature. Protect against heat – heat can irreversibly destroy this product. With increasing heat, the neodymium's force temporarily lowers. Refrain from using this product close to ovens higher than its safe range. Ignoring the limit will lead to destruction of magnetism.
*Important note: Heat tolerance depends not only on the material grade, as well as the dimension ratios. Thin magnets (low Pc) are more susceptible to demagnetization under lower heat stress than taller cylinders. The danger warning in the table indicates permanent field degradation for this particular item.

Table 6: Magnet-Magnet interaction (repulsion) - forces in the system
MW 20x1.5 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Lateral Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 1.64 kg / 3.61 lbs
1 781 Gs
0.25 kg / 0.54 lbs
246 g / 2.4 N
 N/A
1 mm 1.59 kg / 3.51 lbs
1 813 Gs
0.24 kg / 0.53 lbs
239 g / 2.3 N
 1.43 kg / 3.16 lbs
~0 Gs
2 mm 1.52 kg / 3.36 lbs
1 774 Gs
0.23 kg / 0.50 lbs
228 g / 2.2 N
 1.37 kg / 3.02 lbs
~0 Gs
3 mm 1.44 kg / 3.17 lbs
1 724 Gs
0.22 kg / 0.48 lbs
216 g / 2.1 N
 1.29 kg / 2.85 lbs
~0 Gs
5 mm 1.24 kg / 2.73 lbs
1 598 Gs
0.19 kg / 0.41 lbs
185 g / 1.8 N
 1.11 kg / 2.45 lbs
~0 Gs
10 mm 0.71 kg / 1.57 lbs
1 212 Gs
0.11 kg / 0.24 lbs
107 g / 1.0 N
 0.64 kg / 1.41 lbs
~0 Gs
20 mm 0.17 kg / 0.37 lbs
589 Gs
0.03 kg / 0.06 lbs
25 g / 0.2 N
 0.15 kg / 0.33 lbs
~0 Gs
50 mm 0.00 kg / 0.01 lbs
88 Gs
0.00 kg / 0.00 lbs
1 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
60 mm 0.00 kg / 0.00 lbs
55 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
70 mm 0.00 kg / 0.00 lbs
36 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
80 mm 0.00 kg / 0.00 lbs
25 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
90 mm 0.00 kg / 0.00 lbs
18 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
100 mm 0.00 kg / 0.00 lbs
13 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
Two magnets attract each other from a significantly greater distance than a magnet and steel setup. Such a system of magnet-to-magnet creates a more powerful interaction and a further horizon of operation. Planning to create a strong closure? Apply two magnets instead of a neodymium and a steel. Be careful that when attracting two neodymiums, the collision energy is extreme. The repulsion force is slightly lower than the attraction, but still large.
*The magnetic induction for N-N configuration is approximately ~0 Gs in the exact middle between the magnets (due to field cancellation).
* Calculations refer to friction force of two same neodymium magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Hazards (implants) - precautionary measures
MW 20x1.5 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 6.0 cm
Hearing aid 10 Gs (1.0 mT) 4.5 cm
Mechanical watch 20 Gs (2.0 mT) 3.5 cm
Phone / Smartphone 40 Gs (4.0 mT) 3.0 cm
Car key 50 Gs (5.0 mT) 2.5 cm
Payment card 400 Gs (40.0 mT) 1.0 cm
HDD hard drive 600 Gs (60.0 mT) 1.0 cm
A strong magnetic field is a serious hazard to electronic devices as well as medical implants. These magnets generate a field that prevents correct functioning of digital equipment. Notice: the invisible magnetic field passes through tissues and glass. Special caution must be taken by people with cochlear implants and drug dispensers. Also at risk are: mechanical watches, car keys, speakers, and screens. Do not place the magnet near cards, hard drives, or sensitive navigation tools.

Table 8: Collisions (cracking risk) - warning
MW 20x1.5 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 18.48 km/h
(5.13 m/s)
 0.05 J
30 mm 19.15 km/h
(5.32 m/s)
 0.05 J
50 mm 19.16 km/h
(5.32 m/s)
 0.05 J
100 mm 19.16 km/h
(5.32 m/s)
 0.05 J
NdFeB products are very brittle – a collision with steel risks their cracking. Pay attention to connection velocity – a magnet released freely becomes dangerous. Impact energy can cause material chips or injury to fingers. Be sure to control the product during installation so it doesn't slam with momentum against the metal. A contact at a velocity of dozens of km/h almost guarantees destruction of the magnet. Use safety goggles when playing with powerful specimens.

Table 9: Surface protection spec
MW 20x1.5 / 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. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Construction data (Flux)
MW 20x1.5 / N38

Parameter Value SI Unit / Description
Magnetic Flux 3 979 Mx 39.8 µWb
Pc Coefficient 0.12 Low (Flat)
Total magnetic flux emitted by the magnet pole. Essential parameter for generator designers and motors. Pc value defines the magnet's operating point.

Table 11: Submerged application
MW 20x1.5 / N38

Environment Effective steel pull Effect
Air (land) 0.97 kg Standard
Water (riverbed) 1.11 kg
(+0.14 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.
In water, the magnet feels stronger thanks to Archimedes' principle. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Sliding resistance

*Caution: On a vertical wall, the magnet retains merely approx. 20-30% of its max power.

2. Steel saturation

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

3. Heat tolerance

*For standard magnets, the max working temp is 80°C.

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.12

The chart above illustrates the magnetic characteristics of the material within the second quadrant of the hysteresis loop. The solid red line represents the demagnetization curve (material potential), while the dashed blue line is the load line based on the magnet's geometry. The Pc (Permeance Coefficient), also known as the load line slope, is a dimensionless value that describes the relationship between the magnet's shape and its magnetic stability. The intersection of these two lines (the black dot) is the operating point — it determines the actual magnetic flux density generated by the magnet in this specific configuration. A higher Pc value means the magnet is more 'slender' (tall relative to its area), resulting in a higher operating point and better resistance to irreversible demagnetization caused by external fields or temperature. A value of 0.42 is relatively low (typical for flat magnets), meaning the operating point is closer to the 'knee' of the curve — caution is advised when operating at temperatures near the maximum limit to avoid strength loss.

Engineering data and GPSR

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: 010039-2026
Measurement Calculator

Pulling force

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The presented product is a very strong cylinder magnet, manufactured from modern NdFeB material, which, with dimensions of Ø20x1.5 mm, guarantees the highest energy density. The MW 20x1.5 / N38 model boasts high dimensional repeatability and professional build quality, making it an ideal solution for professional engineers and designers. As a magnetic rod with significant force (approx. 0.97 kg), this product is available off-the-shelf from our warehouse in Poland, ensuring quick order fulfillment. Furthermore, its Ni-Cu-Ni coating effectively protects it against corrosion in typical operating conditions, ensuring an aesthetic appearance and durability for years.
It finds application in DIY projects, advanced automation, and broadly understood industry, serving as a positioning or actuating element. Thanks to the high power of 9.50 N with a weight of only 3.53 g, this cylindrical magnet is indispensable in miniature devices and wherever low weight is crucial.
Due to the brittleness of the NdFeB material, we absolutely advise against force-fitting (so-called press-fit), as this risks chipping the coating of this precision component. To ensure long-term durability in industry, anaerobic resins are used, which are safe for nickel and fill the gap, guaranteeing durability of the connection.
Magnets NdFeB grade N38 are suitable for 90% of applications in modeling and machine building, where extreme miniaturization with maximum force is not required. If you need even stronger magnets in the same volume (Ø20x1.5), 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 Ø20x1.5 mm, which, at a weight of 3.53 g, makes it an element with high magnetic energy density. The value of 9.50 N means that the magnet is capable of holding a weight many times exceeding its own mass of 3.53 g. The product has a [NiCuNi] coating, which protects the surface against external factors, 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 20 mm. Such an arrangement is most desirable 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 through the diameter if your project requires it.

Strengths as well as weaknesses of neodymium magnets.

Benefits

Apart from their consistent power, neodymium magnets have these key benefits:
  • They do not lose strength, even over nearly 10 years – the drop in lifting capacity is only ~1% (theoretically),
  • Magnets very well protect themselves against loss of magnetization caused by external fields,
  • In other words, due to the glossy layer of silver, the element gains visual value,
  • Neodymium magnets generate maximum magnetic induction on a contact point, which increases force concentration,
  • Thanks to resistance to high temperature, they are capable of working (depending on the shape) even at temperatures up to 230°C and higher...
  • Thanks to flexibility in shaping and the ability to customize to individual projects,
  • Huge importance in innovative solutions – they are used in mass storage devices, brushless drives, medical equipment, also industrial machines.
  • Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in small dimensions, which makes them useful in miniature devices

Cons

Disadvantages of NdFeB magnets:
  • They are prone to damage upon too strong impacts. To avoid cracks, it is worth protecting magnets in special housings. Such protection not only shields the magnet but also improves its resistance to damage
  • We warn that neodymium magnets can lose their power at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
  • Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material immune to moisture, when using outdoors
  • We recommend cover - magnetic mechanism, due to difficulties in producing threads inside the magnet and complicated shapes.
  • Possible danger resulting from small fragments of magnets can be dangerous, if swallowed, which gains importance in the context of child health protection. It is also worth noting that small components of these products are able to disrupt the diagnostic process medical after entering the body.
  • High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which increases costs of application in large quantities

Pull force analysis

Optimal lifting capacity of a neodymium magnet – what it depends on?

The force parameter is a result of laboratory testing conducted under specific, ideal conditions:
  • using a base made of low-carbon steel, acting as a ideal flux conductor
  • whose transverse dimension is min. 10 mm
  • with an ideally smooth contact surface
  • without the slightest insulating layer between the magnet and steel
  • during pulling in a direction perpendicular to the mounting surface
  • in stable room temperature

Determinants of practical lifting force of a magnet

In practice, the actual holding force is determined by several key aspects, presented from most significant:
  • Distance (betwixt the magnet and the plate), since even a microscopic distance (e.g. 0.5 mm) results in a decrease in force by up to 50% (this also applies to varnish, rust or dirt).
  • Load vector – maximum parameter is reached only during perpendicular pulling. The force required to slide of the magnet along the surface is usually many times lower (approx. 1/5 of the lifting capacity).
  • Metal thickness – thin material does not allow full use of the magnet. Magnetic flux passes through the material instead of converting into lifting capacity.
  • Material composition – not every steel attracts identically. High carbon content weaken the attraction effect.
  • Smoothness – ideal contact is obtained only on smooth steel. Any scratches and bumps create air cushions, reducing force.
  • Thermal environment – heating the magnet causes a temporary drop of force. It is worth remembering the maximum operating temperature for a given model.

Holding force was measured on the plate surface of 20 mm thickness, when a perpendicular force was applied, in contrast under parallel forces the lifting capacity is smaller. In addition, even a minimal clearance between the magnet and the plate reduces the lifting capacity.

Precautions when working with neodymium magnets
Electronic devices

Intense magnetic fields can destroy records on credit cards, hard drives, and other magnetic media. Maintain a gap of at least 10 cm.

ICD Warning

Health Alert: Strong magnets can turn off heart devices and defibrillators. Do not approach if you have electronic implants.

No play value

Always store magnets out of reach of children. Risk of swallowing is high, and the consequences of magnets clamping inside the body are life-threatening.

Maximum temperature

Regular neodymium magnets (N-type) lose power when the temperature surpasses 80°C. This process is irreversible.

Caution required

Before starting, read the rules. Uncontrolled attraction can break the magnet or injure your hand. Be predictive.

Bodily injuries

Danger of trauma: The pulling power is so immense that it can cause blood blisters, pinching, and even bone fractures. Protective gloves are recommended.

Shattering risk

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

Combustion hazard

Machining of neodymium magnets carries a risk of fire hazard. Magnetic powder reacts violently with oxygen and is hard to extinguish.

Precision electronics

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

Warning for allergy sufferers

Nickel alert: The nickel-copper-nickel coating consists of nickel. If redness appears, cease handling magnets and use protective gear.

Safety First! Learn more about hazards in the article: Safety of working with magnets.