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MW 25x6 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010050

GTIN/EAN: 5906301810490

5.00

Diameter Ø

25 mm [±0,1 mm]

Height

6 mm [±0,1 mm]

Weight

22.09 g

Magnetization Direction

↑ axial

Load capacity

10.27 kg / 100.71 N

Magnetic Induction

268.21 mT / 2682 Gs

Coating

[NiCuNi] Nickel

product specifications »

7.40 ZŁ with VAT / pcs + price for transport

6.02 ZŁ net + 23% VAT / pcs

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Product card - MW 25x6 / N38 - cylindrical magnet

Specification / characteristics - MW 25x6 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010050
GTIN/EAN 5906301810490
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 25 mm [±0,1 mm]
Height 6 mm [±0,1 mm]
Weight 22.09 g
Magnetization Direction ↑ axial
Load capacity ~ ? 10.27 kg / 100.71 N
Magnetic Induction ~ ? 268.21 mT / 2682 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 25x6 / 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 simulation of the product - report

Presented information constitute the outcome of a physical simulation. Values rely on algorithms for the class Nd2Fe14B. Real-world parameters may deviate from the simulation results. Treat these calculations as a supplementary guide during assembly planning.

Table 1: Static pull force (force vs distance) - power drop
MW 25x6 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 2682 Gs
268.2 mT
 10.27 kg / 22.64 LBS
10270.0 g / 100.7 N
 crushing
1 mm 2535 Gs
253.5 mT
 9.18 kg / 20.23 LBS
9177.2 g / 90.0 N
 strong
2 mm 2363 Gs
236.3 mT
 7.97 kg / 17.57 LBS
7971.8 g / 78.2 N
 strong
3 mm 2176 Gs
217.6 mT
 6.76 kg / 14.91 LBS
6761.0 g / 66.3 N
 strong
5 mm 1793 Gs
179.3 mT
 4.59 kg / 10.13 LBS
4592.7 g / 45.1 N
 strong
10 mm 1013 Gs
101.3 mT
 1.46 kg / 3.23 LBS
1464.5 g / 14.4 N
 safe
15 mm 565 Gs
56.5 mT
 0.46 kg / 1.00 LBS
455.3 g / 4.5 N
 safe
20 mm 330 Gs
33.0 mT
 0.16 kg / 0.34 LBS
155.7 g / 1.5 N
 safe
30 mm 134 Gs
13.4 mT
 0.03 kg / 0.06 LBS
25.6 g / 0.3 N
 safe
50 mm 36 Gs
3.6 mT
 0.00 kg / 0.00 LBS
1.9 g / 0.0 N
 safe
Magnetic force drops significantly with every subsequent millimeter of distance. Keep in mind that even a very thin break (e.g., contamination, varnish, rust) significantly diminishes the holding power. Magnetic products operate strongest in perfect adhesion; air break kills the force. Analyze how rapidly the parameters fall, when the magnet does not touch flatly to the metal substrate. When calculating the mounting, discard additional spacers.

Table 2: Sliding capacity (vertical surface)
MW 25x6 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 2.05 kg / 4.53 LBS
2054.0 g / 20.1 N
1 mm Stal (~0.2) 1.84 kg / 4.05 LBS
1836.0 g / 18.0 N
2 mm Stal (~0.2) 1.59 kg / 3.51 LBS
1594.0 g / 15.6 N
3 mm Stal (~0.2) 1.35 kg / 2.98 LBS
1352.0 g / 13.3 N
5 mm Stal (~0.2) 0.92 kg / 2.02 LBS
918.0 g / 9.0 N
10 mm Stal (~0.2) 0.29 kg / 0.64 LBS
292.0 g / 2.9 N
15 mm Stal (~0.2) 0.09 kg / 0.20 LBS
92.0 g / 0.9 N
20 mm Stal (~0.2) 0.03 kg / 0.07 LBS
32.0 g / 0.3 N
30 mm Stal (~0.2) 0.01 kg / 0.01 LBS
6.0 g / 0.1 N
50 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
The table below defines the approximate force needed to cause the shifting of the magnet down along a vertical metal surface (considering standard friction). The holding force varies with the air gap between the magnet and the surface.

Table 3: Wall mounting (shearing) - vertical pull
MW 25x6 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
3.08 kg / 6.79 LBS
3081.0 g / 30.2 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
2.05 kg / 4.53 LBS
2054.0 g / 20.1 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
1.03 kg / 2.26 LBS
1027.0 g / 10.1 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
5.14 kg / 11.32 LBS
5135.0 g / 50.4 N
When placing a magnet on a vertical wall (e.g., a board), it will maintain just approx. 1/5 of its maximum pull force. Gravity as well as a low friction coefficient influence the fact that holders slip faster than they detach. Planning a wall mount? Remember that the sliding force is noticeably lower than the perpendicular breakaway force. On a painted metal, the holder will give way down under a noticeably lighter cargo. Application of an anti-slip layer can drastically improve the result.

Table 4: Material efficiency (saturation) - sheet metal selection
MW 25x6 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
5%
 0.51 kg / 1.13 LBS
513.5 g / 5.0 N
1 mm
13%
 1.28 kg / 2.83 LBS
1283.8 g / 12.6 N
2 mm
25%
 2.57 kg / 5.66 LBS
2567.5 g / 25.2 N
3 mm
38%
 3.85 kg / 8.49 LBS
3851.3 g / 37.8 N
5 mm
63%
 6.42 kg / 14.15 LBS
6418.7 g / 63.0 N
10 mm
100%
 10.27 kg / 22.64 LBS
10270.0 g / 100.7 N
11 mm
100%
 10.27 kg / 22.64 LBS
10270.0 g / 100.7 N
12 mm
100%
 10.27 kg / 22.64 LBS
10270.0 g / 100.7 N
A too thin steel is not enough to take in the full magnetic flux, which wastes potential of the magnet. If you install a neodymium to a weak sheet, the field will pass right through and the attraction force will be weaker. To squeeze the maximum of this magnet's power, you need a suitably thick backing of steel. The saturation phenomenon causes that on sheet metal structures (e.g., thin profiles), the product shows lower pull force. We advise picking the steel cross-section based on the following data.

Table 5: Working in heat (stability) - resistance threshold
MW 25x6 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 10.27 kg / 22.64 LBS
10270.0 g / 100.7 N
 OK
40 °C -2.2% 10.04 kg / 22.14 LBS
10044.1 g / 98.5 N
 OK
60 °C -4.4% 9.82 kg / 21.65 LBS
9818.1 g / 96.3 N
80 °C -6.6% 9.59 kg / 21.15 LBS
9592.2 g / 94.1 N
100 °C -28.8% 7.31 kg / 16.12 LBS
7312.2 g / 71.7 N
Classic neodymiums irreversibly lose parameters past the thermal threshold. Watch out for overheating – high temperature can permanently demagnetize this product. With every degree above norm, the neodymium's capacity momentarily decreases. Avoid using this magnet in hot environments higher than its operating temperature limit. Exceeding the critical threshold will result in permanent loss of magnetic properties.
*Technical advisory: Temperature resistance is determined by both grade, but also on the magnet's shape. Flat magnets (pancake types) are more susceptible to demagnetization sooner than taller cylinders. Red status in the table signals permanent field degradation for this specific geometry.

Table 6: Two magnets (attraction) - field range
MW 25x6 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 21.76 kg / 47.98 LBS
4 291 Gs
3.26 kg / 7.20 LBS
3264 g / 32.0 N
 N/A
1 mm 20.66 kg / 45.54 LBS
5 225 Gs
3.10 kg / 6.83 LBS
3098 g / 30.4 N
 18.59 kg / 40.98 LBS
~0 Gs
2 mm 19.45 kg / 42.87 LBS
5 070 Gs
2.92 kg / 6.43 LBS
2917 g / 28.6 N
 17.50 kg / 38.58 LBS
~0 Gs
3 mm 18.18 kg / 40.09 LBS
4 902 Gs
2.73 kg / 6.01 LBS
2727 g / 26.8 N
 16.36 kg / 36.08 LBS
~0 Gs
5 mm 15.60 kg / 34.39 LBS
4 541 Gs
2.34 kg / 5.16 LBS
2340 g / 23.0 N
 14.04 kg / 30.95 LBS
~0 Gs
10 mm 9.73 kg / 21.46 LBS
3 587 Gs
1.46 kg / 3.22 LBS
1460 g / 14.3 N
 8.76 kg / 19.31 LBS
~0 Gs
20 mm 3.10 kg / 6.84 LBS
2 025 Gs
0.47 kg / 1.03 LBS
465 g / 4.6 N
 2.79 kg / 6.16 LBS
~0 Gs
50 mm 0.13 kg / 0.28 LBS
409 Gs
0.02 kg / 0.04 LBS
19 g / 0.2 N
 0.11 kg / 0.25 LBS
~0 Gs
60 mm 0.05 kg / 0.12 LBS
268 Gs
0.01 kg / 0.02 LBS
8 g / 0.1 N
 0.05 kg / 0.11 LBS
~0 Gs
70 mm 0.03 kg / 0.06 LBS
183 Gs
0.00 kg / 0.01 LBS
4 g / 0.0 N
 0.02 kg / 0.05 LBS
~0 Gs
80 mm 0.01 kg / 0.03 LBS
131 Gs
0.00 kg / 0.00 LBS
2 g / 0.0 N
 0.01 kg / 0.03 LBS
~0 Gs
90 mm 0.01 kg / 0.02 LBS
96 Gs
0.00 kg / 0.00 LBS
1 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
100 mm 0.00 kg / 0.01 LBS
72 Gs
0.00 kg / 0.00 LBS
1 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
Two strong neodymiums attract each other from a significantly greater distance than a magnet and sheet setup. The setup of magnet-to-magnet creates a more powerful interaction and a larger range of operation. Designing a strong closure? Utilize two neodymiums instead of one magnet and a striker plate. Be careful that when attracting two neodymiums, the impact force is massive. The repulsion force is marginally weaker than the attraction, but still large.
*Field value in repulsion mode reaches ~0 Gs at the geometric center of the gap (caused by magnetic field nullification).
Attention: Calculations apply to friction force of two matching neodymium magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Safety (HSE) (electronics) - warnings
MW 25x6 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 10.5 cm
Hearing aid 10 Gs (1.0 mT) 8.0 cm
Mechanical watch 20 Gs (2.0 mT) 6.5 cm
Mobile device 40 Gs (4.0 mT) 5.0 cm
Car key 50 Gs (5.0 mT) 4.5 cm
Payment card 400 Gs (40.0 mT) 2.0 cm
HDD hard drive 600 Gs (60.0 mT) 1.5 cm
Extremely neodym field is a real danger to IT equipment as well as medical implants. These NdFeB products generate a flux that destroys function of digital equipment. Be aware: the invisible magnetic field acts through matter and glass. Exceptional care must be exercised by people with cochlear implants and insulin pumps. Influence will be felt by: mechanical watches, car keys, speakers, and displays. Do not place the magnet near cards, hard drives, or sensitive navigation tools.

Table 8: Collisions (kinetic energy) - collision effects
MW 25x6 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 23.60 km/h
(6.56 m/s)
 0.47 J
30 mm 37.72 km/h
(10.48 m/s)
 1.21 J
50 mm 48.63 km/h
(13.51 m/s)
 2.02 J
100 mm 68.77 km/h
(19.10 m/s)
 4.03 J
Neodymium magnets are prone to chipping – a violent impact against metal can result in shattering. Control the attraction moment – a magnet released freely turns into a projectile. Impact energy can destroy the magnet or dangerous crushing to fingers. Hold the magnet firmly during mounting so it doesn't hit with great force against the steel surface. A contact at a velocity of dozens of km/h means shattering of the neodymium. Wear eye protection when handling with powerful specimens.

Table 9: Anti-corrosion coating durability
MW 25x6 / 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 25x6 / N38

Parameter Value SI Unit / Description
Magnetic Flux 14 740 Mx 147.4 µWb
Pc Coefficient 0.34 Low (Flat)
Total magnetic flux passing through the magnet pole. Essential parameter when building generators as well as sensors. Pc value determines the magnet's operating point.

Table 11: Underwater work (magnet fishing)
MW 25x6 / N38

Environment Effective steel pull Effect
Air (land) 10.27 kg Standard
Water (riverbed) 11.76 kg
(+1.49 kg buoyancy gain)
+14.5%
Warning: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.
Contrary to myths, water does not block the magnetic field. Buoyancy helps in lifting finds.
1. Vertical hold

*Caution: On a vertical surface, the magnet retains just ~20% of its max power.

2. Efficiency vs thickness

*Thin steel (e.g. computer case) drastically weakens the holding force.

3. Temperature resistance

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

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.34

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
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%
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: 010050-2026
Magnet Unit Converter
Force (pull)
Magnetic Field
Simply populate any input, to let the tool compute everything else automatically.

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The presented product is an incredibly powerful cylinder magnet, made from advanced NdFeB material, which, at dimensions of Ø25x6 mm, guarantees optimal power. The MW 25x6 / N38 component is characterized by a tolerance of ±0.1mm and industrial build quality, making it an ideal solution for professional engineers and designers. As a cylindrical magnet with significant force (approx. 10.27 kg), this product is available off-the-shelf from our European logistics center, ensuring lightning-fast order fulfillment. Moreover, its Ni-Cu-Ni coating effectively protects it against corrosion in standard operating conditions, guaranteeing an aesthetic appearance and durability for years.
This model is perfect for building generators, advanced Hall effect sensors, and efficient filters, where maximum induction on a small surface counts. Thanks to the pull force of 100.71 N with a weight of only 22.09 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., 25.1 mm) using two-component epoxy glues. 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.
Magnets NdFeB grade N38 are suitable for the majority of applications in automation and machine building, where excessive miniaturization with maximum force is not required. If you need even stronger magnets in the same volume (Ø25x6), 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 Ø25x6 mm, which, at a weight of 22.09 g, makes it an element with high magnetic energy density. The key parameter here is the lifting capacity amounting to approximately 10.27 kg (force ~100.71 N), which, with such compact dimensions, proves the high grade of the NdFeB material. The product has a [NiCuNi] coating, which secures it 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 25 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.

Pros as well as cons of neodymium magnets.

Benefits

Apart from their superior magnetic energy, neodymium magnets have these key benefits:
  • They virtually do not lose power, because even after ten years the performance loss is only ~1% (based on calculations),
  • Neodymium magnets prove to be exceptionally resistant to loss of magnetic properties caused by external magnetic fields,
  • A magnet with a shiny nickel surface looks better,
  • The surface of neodymium magnets generates a maximum 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 form) even at a temperature of 230°C or more...
  • Thanks to flexibility in designing and the capacity to adapt to complex applications,
  • Versatile presence in future technologies – they are used in mass storage devices, brushless drives, medical equipment, and technologically advanced constructions.
  • Relatively small size with high pulling force – neodymium magnets offer high power in tiny dimensions, which makes them useful in small systems

Cons

Disadvantages of neodymium magnets:
  • They are prone to damage upon heavy impacts. To avoid cracks, it is worth securing magnets using a steel holder. Such protection not only shields the magnet but also improves its resistance to damage
  • Neodymium magnets decrease their force under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
  • Magnets exposed to a humid environment can corrode. Therefore while using outdoors, we recommend using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
  • We suggest a housing - magnetic holder, due to difficulties in realizing nuts inside the magnet and complicated shapes.
  • Health risk related to microscopic parts of magnets are risky, if swallowed, which is particularly important in the aspect of protecting the youngest. Furthermore, small elements of these devices can disrupt the diagnostic process medical when they are in the body.
  • With large orders the cost of neodymium magnets can be a barrier,

Lifting parameters

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

Magnet power is the result of a measurement for optimal configuration, taking into account:
  • using a base made of mild steel, acting as a ideal flux conductor
  • whose thickness is min. 10 mm
  • with an ground contact surface
  • under conditions of gap-free contact (metal-to-metal)
  • for force applied at a right angle (pull-off, not shear)
  • at ambient temperature room level

Lifting capacity in practice – influencing factors

Real force impacted by working environment parameters, including (from priority):
  • Distance – the presence of foreign body (paint, tape, air) interrupts the magnetic circuit, which reduces capacity rapidly (even by 50% at 0.5 mm).
  • Pull-off angle – remember that the magnet holds strongest perpendicularly. Under shear forces, the capacity drops drastically, often to levels of 20-30% of the nominal value.
  • Substrate thickness – to utilize 100% power, the steel must be sufficiently thick. Thin sheet restricts the attraction force (the magnet "punches through" it).
  • Steel grade – ideal substrate is high-permeability steel. Stainless steels may attract less.
  • Surface structure – the more even the plate, the larger the contact zone and stronger the hold. Roughness acts like micro-gaps.
  • Thermal conditions – NdFeB sinters have a sensitivity to temperature. At higher temperatures they are weaker, and at low temperatures gain strength (up to a certain limit).

Lifting capacity was assessed with the use of a polished steel plate of suitable thickness (min. 20 mm), under vertically applied force, whereas under parallel forces the lifting capacity is smaller. Additionally, even a slight gap between the magnet’s surface and the plate reduces the holding force.

Precautions when working with neodymium magnets
Medical interference

Individuals with a pacemaker should keep an absolute distance from magnets. The magnetism can disrupt the operation of the life-saving device.

Fragile material

Watch out for shards. Magnets can fracture upon uncontrolled impact, ejecting shards into the air. We recommend safety glasses.

GPS and phone interference

An intense magnetic field negatively affects the functioning of compasses in phones and GPS navigation. Do not bring magnets close to a smartphone to avoid breaking the sensors.

Power loss in heat

Keep cool. Neodymium magnets are sensitive to temperature. If you require operation above 80°C, inquire about HT versions (H, SH, UH).

Handling rules

Exercise caution. Neodymium magnets attract from a long distance and connect with massive power, often faster than you can move away.

Adults only

NdFeB magnets are not intended for children. Eating several magnets may result in them connecting inside the digestive tract, which poses a direct threat to life and requires immediate surgery.

Finger safety

Big blocks can smash fingers instantly. Never place your hand between two attracting surfaces.

Electronic hazard

Intense magnetic fields can corrupt files on credit cards, hard drives, and other magnetic media. Keep a distance of at least 10 cm.

Warning for allergy sufferers

Certain individuals suffer from a contact allergy to Ni, which is the typical protective layer for neodymium magnets. Frequent touching might lead to an allergic reaction. We strongly advise wear safety gloves.

Fire risk

Mechanical processing of neodymium magnets poses a fire hazard. Neodymium dust oxidizes rapidly with oxygen and is hard to extinguish.

Attention! Looking for details? Read our article: Are neodymium magnets dangerous?