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MW 70x40 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010097

GTIN/EAN: 5906301810964

5.00

Diameter Ø

70 mm [±0,1 mm]

Height

40 mm [±0,1 mm]

Weight

1154.54 g

Magnetization Direction

↑ axial

Load capacity

164.24 kg / 1611.16 N

Magnetic Induction

466.52 mT / 4665 Gs

Coating

[NiCuNi] Nickel

view technical specifications »

395.40 ZŁ with VAT / pcs + price for transport

321.46 ZŁ net + 23% VAT / pcs

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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
Do you have questions?

Give us a call +48 22 499 98 98 or drop us a message via request form the contact page.
Specifications as well as form of magnets can be tested using our online calculation tool.

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Technical specification of the product - MW 70x40 / N38 - cylindrical magnet

Specification / characteristics - MW 70x40 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010097
GTIN/EAN 5906301810964
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 70 mm [±0,1 mm]
Height 40 mm [±0,1 mm]
Weight 1154.54 g
Magnetization Direction ↑ axial
Load capacity ~ ? 164.24 kg / 1611.16 N
Magnetic Induction ~ ? 466.52 mT / 4665 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 70x40 / 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

Physical modeling of the product - technical parameters

The following values are the result of a physical simulation. Values were calculated on models for the class Nd2Fe14B. Actual conditions may deviate from the simulation results. Use these calculations as a preliminary roadmap when designing systems.

Table 1: Static force (force vs gap) - interaction chart
MW 70x40 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 4665 Gs
466.5 mT
 164.24 kg / 362.09 lbs
164240.0 g / 1611.2 N
 crushing
1 mm 4538 Gs
453.8 mT
 155.47 kg / 342.75 lbs
155467.9 g / 1525.1 N
 crushing
2 mm 4409 Gs
440.9 mT
 146.74 kg / 323.52 lbs
146744.5 g / 1439.6 N
 crushing
3 mm 4279 Gs
427.9 mT
 138.20 kg / 304.68 lbs
138201.8 g / 1355.8 N
 crushing
5 mm 4017 Gs
401.7 mT
 121.81 kg / 268.54 lbs
121806.5 g / 1194.9 N
 crushing
10 mm 3376 Gs
337.6 mT
 86.03 kg / 189.65 lbs
86025.3 g / 843.9 N
 crushing
15 mm 2788 Gs
278.8 mT
 58.69 kg / 129.38 lbs
58686.8 g / 575.7 N
 crushing
20 mm 2279 Gs
227.9 mT
 39.22 kg / 86.46 lbs
39215.6 g / 384.7 N
 crushing
30 mm 1511 Gs
151.1 mT
 17.22 kg / 37.97 lbs
17222.5 g / 169.0 N
 crushing
50 mm 699 Gs
69.9 mT
 3.69 kg / 8.13 lbs
3690.0 g / 36.2 N
 medium risk
Magnetic force weakens sharply with every subsequent millimeter of gap. Note that even the smallest gap (e.g., contamination, varnish, veneer) significantly reduces the pull force. Neodymiums hold optimally in perfect adhesion; air break weakens the force. Observe how rapidly the pull force plummet, when the magnet does not adhere flatly to the metal substrate. When planning the assembly, avoid unnecessary gaps.

Table 2: Slippage force (vertical surface)
MW 70x40 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 32.85 kg / 72.42 lbs
32848.0 g / 322.2 N
1 mm Stal (~0.2) 31.09 kg / 68.55 lbs
31094.0 g / 305.0 N
2 mm Stal (~0.2) 29.35 kg / 64.70 lbs
29348.0 g / 287.9 N
3 mm Stal (~0.2) 27.64 kg / 60.94 lbs
27640.0 g / 271.1 N
5 mm Stal (~0.2) 24.36 kg / 53.71 lbs
24362.0 g / 239.0 N
10 mm Stal (~0.2) 17.21 kg / 37.93 lbs
17206.0 g / 168.8 N
15 mm Stal (~0.2) 11.74 kg / 25.88 lbs
11738.0 g / 115.1 N
20 mm Stal (~0.2) 7.84 kg / 17.29 lbs
7844.0 g / 76.9 N
30 mm Stal (~0.2) 3.44 kg / 7.59 lbs
3444.0 g / 33.8 N
50 mm Stal (~0.2) 0.74 kg / 1.63 lbs
738.0 g / 7.2 N
This section calculates the estimated shear load sufficient to start the slippage of the magnet vertically on a vertical steel wall (considering standard friction). This parameter depends on the separation distance between the magnet and the metal.

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MW 70x40 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
49.27 kg / 108.63 lbs
49272.0 g / 483.4 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
32.85 kg / 72.42 lbs
32848.0 g / 322.2 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
16.42 kg / 36.21 lbs
16424.0 g / 161.1 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
82.12 kg / 181.04 lbs
82120.0 g / 805.6 N
When hanging a element on a vertical plane (e.g., a car body), it will only hold barely about 1/5 of nominal attraction strength. Gravity and a low friction coefficient influence the fact that holders slide down faster than they pop off the substrate. Designing a hanger? Remember that the sliding force is significantly lower than the perpendicular breakaway force. On a smooth steel, the magnet will slip down under a significantly smaller cargo. Using a rubber coating can significantly increase the grip.

Table 4: Material efficiency (substrate influence) - power losses
MW 70x40 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
3%
 5.47 kg / 12.07 lbs
5474.7 g / 53.7 N
1 mm
8%
 13.69 kg / 30.17 lbs
13686.7 g / 134.3 N
2 mm
17%
 27.37 kg / 60.35 lbs
27373.3 g / 268.5 N
3 mm
25%
 41.06 kg / 90.52 lbs
41060.0 g / 402.8 N
5 mm
42%
 68.43 kg / 150.87 lbs
68433.3 g / 671.3 N
10 mm
83%
 136.87 kg / 301.74 lbs
136866.7 g / 1342.7 N
11 mm
92%
 150.55 kg / 331.91 lbs
150553.3 g / 1476.9 N
12 mm
100%
 164.24 kg / 362.09 lbs
164240.0 g / 1611.2 N
A thin metal plate cannot absorb the full magnetic flux, which wastes potential of the magnet. Should you install a neodymium to a weak sheet, the flux will pass right through and the attraction force will be weaker. To achieve full efficiency of this neodymium's power, you need a suitably thick backing of steel. The material oversaturation means that on thin elements (e.g., appliance housings), the product shows lower pull force. We advise picking the steel dimension based on the following data.

Table 5: Thermal resistance (stability) - resistance threshold
MW 70x40 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 164.24 kg / 362.09 lbs
164240.0 g / 1611.2 N
 OK
40 °C -2.2% 160.63 kg / 354.12 lbs
160626.7 g / 1575.7 N
 OK
60 °C -4.4% 157.01 kg / 346.15 lbs
157013.4 g / 1540.3 N
 OK
80 °C -6.6% 153.40 kg / 338.19 lbs
153400.2 g / 1504.9 N
100 °C -28.8% 116.94 kg / 257.81 lbs
116938.9 g / 1147.2 N
Classic neodymiums irreversibly lose power past the thermal threshold. Watch out for overheating – heat can permanently destroy this product. With every degree above norm, the neodymium's force temporarily lowers. Refrain from using this magnet near heat sources higher than its working range. Exceeding the critical threshold will cause destruction of magnetic properties.
*Technical advisory: Temperature resistance depends not only on the material grade, as well as the dimension ratios. Thin magnets (pancake types) may lose charge permanently at lower temperatures than long magnets. The danger warning in the table indicates a risk of irreversible loss for this specific geometry.

Table 6: Two magnets (repulsion) - field range
MW 70x40 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Lateral Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 516.26 kg / 1138.16 lbs
5 679 Gs
77.44 kg / 170.72 lbs
77439 g / 759.7 N
 N/A
1 mm 502.57 kg / 1107.98 lbs
9 205 Gs
75.39 kg / 166.20 lbs
75385 g / 739.5 N
 452.31 kg / 997.18 lbs
~0 Gs
2 mm 488.69 kg / 1077.37 lbs
9 077 Gs
73.30 kg / 161.61 lbs
73303 g / 719.1 N
 439.82 kg / 969.63 lbs
~0 Gs
3 mm 474.91 kg / 1047.01 lbs
8 948 Gs
71.24 kg / 157.05 lbs
71237 g / 698.8 N
 427.42 kg / 942.31 lbs
~0 Gs
5 mm 447.76 kg / 987.15 lbs
8 688 Gs
67.16 kg / 148.07 lbs
67164 g / 658.9 N
 402.99 kg / 888.43 lbs
~0 Gs
10 mm 382.88 kg / 844.10 lbs
8 034 Gs
57.43 kg / 126.62 lbs
57432 g / 563.4 N
 344.59 kg / 759.69 lbs
~0 Gs
20 mm 270.41 kg / 596.14 lbs
6 752 Gs
40.56 kg / 89.42 lbs
40561 g / 397.9 N
 243.37 kg / 536.53 lbs
~0 Gs
50 mm 81.66 kg / 180.03 lbs
3 710 Gs
12.25 kg / 27.01 lbs
12249 g / 120.2 N
 73.50 kg / 162.03 lbs
~0 Gs
60 mm 54.14 kg / 119.35 lbs
3 021 Gs
8.12 kg / 17.90 lbs
8120 g / 79.7 N
 48.72 kg / 107.41 lbs
~0 Gs
70 mm 36.14 kg / 79.69 lbs
2 469 Gs
5.42 kg / 11.95 lbs
5422 g / 53.2 N
 32.53 kg / 71.72 lbs
~0 Gs
80 mm 24.40 kg / 53.80 lbs
2 028 Gs
3.66 kg / 8.07 lbs
3661 g / 35.9 N
 21.96 kg / 48.42 lbs
~0 Gs
90 mm 16.70 kg / 36.82 lbs
1 678 Gs
2.51 kg / 5.52 lbs
2505 g / 24.6 N
 15.03 kg / 33.14 lbs
~0 Gs
100 mm 11.60 kg / 25.57 lbs
1 398 Gs
1.74 kg / 3.84 lbs
1740 g / 17.1 N
 10.44 kg / 23.01 lbs
~0 Gs
Two magnets attract each other from a significantly greater distance than a neodymium and metal setup. The connection of magnet-to-magnet generates a stronger field and a further horizon of action. Designing a powerful holder? Use a pair of magnets instead of one magnet and a steel. Remember that when connecting a pair of magnets, the collision energy is extreme. The levitation is slightly lower than the connection force, but still large.
*The magnetic induction in repulsion mode drops to ~0 Gs in the exact middle of the gap (caused by magnetic field nullification).
* Results apply to shear force of a pair of identical magnets (friction ~0.15 for Ni-Ni coating).

Table 7: Safety (HSE) (implants) - warnings
MW 70x40 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 37.5 cm
Hearing aid 10 Gs (1.0 mT) 29.5 cm
Timepiece 20 Gs (2.0 mT) 23.0 cm
Mobile device 40 Gs (4.0 mT) 17.5 cm
Car key 50 Gs (5.0 mT) 16.5 cm
Payment card 400 Gs (40.0 mT) 7.0 cm
HDD hard drive 600 Gs (60.0 mT) 5.5 cm
Extremely neodym field poses a serious hazard to electronics as well as medical implants. These magnets generate a field that destroys function of digital equipment. Notice: the invisible magnetic field passes through tissues and housings. Increased vigilance must be taken by people with cochlear implants and drug dispensers. The risk also applies to: automatic timepieces, car keys, membranes, and displays. Do not place the magnet near cards, hard drives, or precise measuring instruments.

Table 8: Collisions (cracking risk) - collision effects
MW 70x40 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 15.47 km/h
(4.30 m/s)
 10.66 J
30 mm 22.16 km/h
(6.15 m/s)
 21.87 J
50 mm 27.27 km/h
(7.58 m/s)
 33.13 J
100 mm 38.07 km/h
(10.57 m/s)
 64.55 J
NdFeB products are delicate – a strong collision with metal risks their cracking. Control the attraction moment – a neodymium left loose speeds with massive force. Kinetic force can cause material chips or injury to skin. Be sure to control the product during installation so it doesn't hit with great force against the metal. A contact at a velocity of dozens of km/h almost guarantees destruction of the neodymium. Wear eye protection when playing with large magnets.

Table 9: Corrosion resistance
MW 70x40 / 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. Note the thickness of the protective layer.

Table 10: Construction data (Flux)
MW 70x40 / N38

Parameter Value SI Unit / Description
Magnetic Flux 180 982 Mx 1809.8 µWb
Pc Coefficient 0.64 High (Stable)
Flux value emitted by the magnet pole. Key data in coil applications and motors. Pc value determines the magnet's operating point.

Table 11: Physics of underwater searching
MW 70x40 / N38

Environment Effective steel pull Effect
Air (land) 164.24 kg Standard
Water (riverbed) 188.05 kg
(+23.81 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.
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. Wall mount (shear)

*Note: On a vertical surface, the magnet holds only a fraction of its perpendicular strength.

2. Steel saturation

*Thin steel (e.g. 0.5mm PC case) significantly limits the holding force.

3. Temperature resistance

*For N38 material, the safety limit is 80°C.

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.64

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%
Ecology and recycling (GPSR)
recyclability (EoL) 100%
recycled raw materials ~10% (pre-cons)
carbon footprint low / zredukowany
waste code (EWC) 16 02 16
Safety card (GPSR)
responsible entity
Dhit sp. z o.o.
ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki
tel: +48 22 499 98 98 | e-mail: bok@dhit.pl
batch number/type
id: 010097-2026
Magnet Unit Converter
Pulling force
Field Strength
Input a number in a box, to see the remaining units convert on the fly.

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The offered product is a very strong cylinder magnet, manufactured from modern NdFeB material, which, at dimensions of Ø70x40 mm, guarantees optimal power. The MW 70x40 / N38 model is characterized by an accuracy of ±0.1mm and professional build quality, making it an excellent solution for the most demanding engineers and designers. As a magnetic rod with significant force (approx. 164.24 kg), this product is available off-the-shelf from our warehouse in Poland, ensuring quick order fulfillment. Additionally, its triple-layer Ni-Cu-Ni coating effectively protects it against corrosion in typical operating conditions, ensuring an aesthetic appearance and durability for years.
This model is ideal for building generators, advanced Hall effect sensors, and efficient filters, where maximum induction on a small surface counts. Thanks to the high power of 1611.16 N with a weight of only 1154.54 g, this cylindrical magnet is indispensable in electronics and wherever low weight is crucial.
Due to the brittleness of the NdFeB material, 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, anaerobic resins are used, which do not react with the nickel coating and fill the gap, guaranteeing durability of the connection.
Grade N38 is the most popular standard for professional neodymium magnets, offering an optimal price-to-power ratio and high resistance to demagnetization. If you need the strongest magnets in the same volume (Ø70x40), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our warehouse.
This model is characterized by dimensions Ø70x40 mm, which, at a weight of 1154.54 g, makes it an element with impressive magnetic energy density. The key parameter here is the lifting capacity amounting to approximately 164.24 kg (force ~1611.16 N), which, with such defined dimensions, proves the high power 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 40 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.

Strengths as well as weaknesses of rare earth magnets.

Pros

In addition to their magnetic efficiency, neodymium magnets provide the following advantages:
  • They have constant strength, and over nearly 10 years their attraction force decreases symbolically – ~1% (according to theory),
  • They maintain their magnetic properties even under external field action,
  • In other words, due to the metallic finish of silver, the element gains visual value,
  • Neodymium magnets create maximum magnetic induction on a contact point, which allows for strong attraction,
  • Thanks to resistance to high temperature, they are capable of working (depending on the shape) even at temperatures up to 230°C and higher...
  • Considering the potential of accurate forming and customization to individualized requirements, neodymium magnets can be produced in a wide range of shapes and sizes, which expands the range of possible applications,
  • Universal use in modern industrial fields – they find application in HDD drives, brushless drives, medical equipment, also complex engineering applications.
  • Relatively small size with high pulling force – neodymium magnets offer high power in compact dimensions, which enables their usage in small systems

Weaknesses

Problematic aspects of neodymium magnets and ways of using them
  • 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
  • We warn that neodymium magnets can lose their power at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 230°C.
  • Magnets exposed to a humid environment can corrode. Therefore while using outdoors, we advise using water-impermeable magnets made of rubber, plastic or other material resistant to moisture
  • Limited ability of creating nuts in the magnet and complicated forms - recommended is cover - magnet mounting.
  • Potential hazard related to microscopic parts of magnets are risky, when accidentally swallowed, which gains importance in the aspect of protecting the youngest. Furthermore, tiny parts of these magnets are able to complicate diagnosis medical when they are in the body.
  • With large orders the cost of neodymium magnets is economically unviable,

Lifting parameters

Magnetic strength at its maximum – what contributes to it?

The force parameter is a theoretical maximum value executed under specific, ideal conditions:
  • on a base made of structural steel, perfectly concentrating the magnetic flux
  • possessing a thickness of minimum 10 mm to ensure full flux closure
  • with a surface free of scratches
  • without any insulating layer between the magnet and steel
  • under vertical force direction (90-degree angle)
  • in neutral thermal conditions

Practical aspects of lifting capacity – factors

In real-world applications, the actual holding force results from many variables, ranked from most significant:
  • Gap (betwixt the magnet and the metal), because even a very small clearance (e.g. 0.5 mm) can cause a decrease in force by up to 50% (this also applies to paint, corrosion or debris).
  • Load vector – maximum parameter is reached only during perpendicular pulling. The force required to slide of the magnet along the surface is standardly many times lower (approx. 1/5 of the lifting capacity).
  • Substrate thickness – for full efficiency, the steel must be sufficiently thick. Thin sheet restricts the attraction force (the magnet "punches through" it).
  • Material type – ideal substrate is high-permeability steel. Stainless steels may attract less.
  • Surface quality – the more even the surface, the larger the contact zone and stronger the hold. Unevenness acts like micro-gaps.
  • Thermal environment – heating the magnet results in weakening of force. It is worth remembering the thermal limit for a given model.

Holding force was checked on the plate surface of 20 mm thickness, when the force acted perpendicularly, however under parallel forces the lifting capacity is smaller. Moreover, even a small distance between the magnet’s surface and the plate reduces the lifting capacity.

H&S for magnets
Swallowing risk

Only for adults. Tiny parts pose a choking risk, causing serious injuries. Keep out of reach of kids and pets.

Electronic devices

Data protection: Neodymium magnets can damage data carriers and sensitive devices (heart implants, hearing aids, mechanical watches).

ICD Warning

People with a pacemaker must maintain an absolute distance from magnets. The magnetism can disrupt the operation of the implant.

Avoid contact if allergic

It is widely known that the nickel plating (the usual finish) is a strong allergen. If your skin reacts to metals, avoid direct skin contact or opt for encased magnets.

Finger safety

Protect your hands. Two large magnets will snap together immediately with a force of several hundred kilograms, crushing everything in their path. Exercise extreme caution!

GPS and phone interference

Note: rare earth magnets produce a field that confuses sensitive sensors. Keep a safe distance from your phone, device, and GPS.

Mechanical processing

Machining of neodymium magnets carries a risk of fire hazard. Neodymium dust oxidizes rapidly with oxygen and is difficult to extinguish.

Eye protection

Despite metallic appearance, the material is brittle and not impact-resistant. Do not hit, as the magnet may shatter into sharp, dangerous pieces.

Demagnetization risk

Regular neodymium magnets (grade N) lose power when the temperature exceeds 80°C. This process is irreversible.

Safe operation

Before starting, read the rules. Sudden snapping can break the magnet or injure your hand. Think ahead.

Warning! Need more info? Read our article: Why are neodymium magnets dangerous?