← previous
next →
Product available Ships tomorrow

MW 45x25 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010072

GTIN/EAN: 5906301810711

5.00

Diameter Ø

45 mm [±0,1 mm]

Height

25 mm [±0,1 mm]

Weight

298.21 g

Magnetization Direction

↑ axial

Load capacity

67.33 kg / 660.51 N

Magnetic Induction

460.72 mT / 4607 Gs

Coating

[NiCuNi] Nickel

see technical data »

101.55 ZŁ with VAT / pcs + price for transport

82.56 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?
price from 1 pcs
82.56 ZŁ
101.55 ZŁ
price from 10 pcs
77.61 ZŁ
95.46 ZŁ
price from 40 pcs
72.65 ZŁ
89.36 ZŁ
Carbon Footprint – environmental impact GPSR Regulation – product safety
Need help making a decision?

Call us +48 22 499 98 98 or send us a note via our online form through our site.
Weight as well as form of neodymium magnets can be analyzed with our modular calculator.

Same-day shipping for orders placed before 14:00.

Technical of the product - MW 45x25 / N38 - cylindrical magnet

Specification / characteristics - MW 45x25 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010072
GTIN/EAN 5906301810711
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 45 mm [±0,1 mm]
Height 25 mm [±0,1 mm]
Weight 298.21 g
Magnetization Direction ↑ axial
Load capacity ~ ? 67.33 kg / 660.51 N
Magnetic Induction ~ ? 460.72 mT / 4607 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 45x25 / 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 assembly - technical parameters

The following values represent the outcome of a physical analysis. Values were calculated on algorithms for the material Nd2Fe14B. Operational performance might slightly differ. Use these data as a reference point when designing systems.

Table 1: Static force (force vs gap) - characteristics
MW 45x25 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 4606 Gs
460.6 mT
 67.33 kg / 148.44 pounds
67330.0 g / 660.5 N
 critical level
1 mm 4413 Gs
441.3 mT
 61.79 kg / 136.23 pounds
61791.4 g / 606.2 N
 critical level
2 mm 4214 Gs
421.4 mT
 56.35 kg / 124.22 pounds
56345.9 g / 552.8 N
 critical level
3 mm 4014 Gs
401.4 mT
 51.11 kg / 112.68 pounds
51112.0 g / 501.4 N
 critical level
5 mm 3615 Gs
361.5 mT
 41.47 kg / 91.42 pounds
41466.0 g / 406.8 N
 critical level
10 mm 2697 Gs
269.7 mT
 23.08 kg / 50.89 pounds
23083.9 g / 226.5 N
 critical level
15 mm 1965 Gs
196.5 mT
 12.25 kg / 27.00 pounds
12247.0 g / 120.1 N
 critical level
20 mm 1426 Gs
142.6 mT
 6.46 kg / 14.23 pounds
6455.7 g / 63.3 N
 strong
30 mm 778 Gs
77.8 mT
 1.92 kg / 4.24 pounds
1922.5 g / 18.9 N
 safe
50 mm 285 Gs
28.5 mT
 0.26 kg / 0.57 pounds
257.0 g / 2.5 N
 safe
Magnetic force weakens significantly per each millimeter of gap. Note that even a microscopic distance (e.g., contamination, varnish, veneer) significantly diminishes the holding power. Magnets operate most effectively at the point of direct contact; air break drastically cuts the force. See how rapidly the pull force fall, when the product does not adhere tightly to the metal substrate. When calculating the mounting, avoid unnecessary gaps.

Table 2: Sliding capacity (vertical surface)
MW 45x25 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 13.47 kg / 29.69 pounds
13466.0 g / 132.1 N
1 mm Stal (~0.2) 12.36 kg / 27.24 pounds
12358.0 g / 121.2 N
2 mm Stal (~0.2) 11.27 kg / 24.85 pounds
11270.0 g / 110.6 N
3 mm Stal (~0.2) 10.22 kg / 22.54 pounds
10222.0 g / 100.3 N
5 mm Stal (~0.2) 8.29 kg / 18.29 pounds
8294.0 g / 81.4 N
10 mm Stal (~0.2) 4.62 kg / 10.18 pounds
4616.0 g / 45.3 N
15 mm Stal (~0.2) 2.45 kg / 5.40 pounds
2450.0 g / 24.0 N
20 mm Stal (~0.2) 1.29 kg / 2.85 pounds
1292.0 g / 12.7 N
30 mm Stal (~0.2) 0.38 kg / 0.85 pounds
384.0 g / 3.8 N
50 mm Stal (~0.2) 0.05 kg / 0.11 pounds
52.0 g / 0.5 N
This section defines the approximate holding capacity necessary to start the slippage of the magnet vertically on a upright metal surface (considering standard friction coefficient). This parameter varies with the separation distance between the magnet and the surface.

Table 3: Vertical assembly (sliding) - vertical pull
MW 45x25 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
20.20 kg / 44.53 pounds
20199.0 g / 198.2 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
13.47 kg / 29.69 pounds
13466.0 g / 132.1 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
6.73 kg / 14.84 pounds
6733.0 g / 66.1 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
33.67 kg / 74.22 pounds
33665.0 g / 330.3 N
When placing a magnet on a upright surface (e.g., a board), it will maintain only about 1/5 of its maximum pull force. Gravitational force and a low friction coefficient cause that products slip faster than they pull off. Designing a wall mount? Note that the sliding force is much weaker than the perpendicular breakaway force. On a slippery surface, the element will give way down under a much lighter load. Using a rubber pad can effectively improve the result.

Table 4: Material efficiency (substrate influence) - sheet metal selection
MW 45x25 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
3%
 2.24 kg / 4.95 pounds
2244.3 g / 22.0 N
1 mm
8%
 5.61 kg / 12.37 pounds
5610.8 g / 55.0 N
2 mm
17%
 11.22 kg / 24.74 pounds
11221.7 g / 110.1 N
3 mm
25%
 16.83 kg / 37.11 pounds
16832.5 g / 165.1 N
5 mm
42%
 28.05 kg / 61.85 pounds
28054.2 g / 275.2 N
10 mm
83%
 56.11 kg / 123.70 pounds
56108.3 g / 550.4 N
11 mm
92%
 61.72 kg / 136.07 pounds
61719.2 g / 605.5 N
12 mm
100%
 67.33 kg / 148.44 pounds
67330.0 g / 660.5 N
A thin sheet is incapable of conduct the entire magnetic field, which squanders power of the magnet. If you attach a powerful product to a too thin substrate, the magnetism will pass right through and the pull force will drop sharply. To achieve full efficiency of this magnet's potential, you require a sufficiently solid element of steel. The material oversaturation causes that on sheet metal structures (e.g., appliance housings), the holder holds weaker. We advise picking the steel thickness based on the following data.

Table 5: Working in heat (stability) - thermal limit
MW 45x25 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 67.33 kg / 148.44 pounds
67330.0 g / 660.5 N
 OK
40 °C -2.2% 65.85 kg / 145.17 pounds
65848.7 g / 646.0 N
 OK
60 °C -4.4% 64.37 kg / 141.91 pounds
64367.5 g / 631.4 N
 OK
80 °C -6.6% 62.89 kg / 138.64 pounds
62886.2 g / 616.9 N
100 °C -28.8% 47.94 kg / 105.69 pounds
47939.0 g / 470.3 N
Classic neodymiums irreversibly lose power above the temperature limit. Avoid high temperatures – heat can permanently damage this product. As the temperature rises, the neodymium's power momentarily decreases. Avoid using this magnet close to heaters exceeding its safe range. Exceeding the critical threshold will cause irreversible degradation of magnetic properties.
*Engineering note: Heat tolerance is determined by both grade, but also on the magnet's shape. Thin magnets (pancake types) risk losing magnetic properties under lower heat stress than taller cylinders. Red status in the table points to permanent field degradation for this particular item.

Table 6: Magnet-Magnet interaction (repulsion) - field range
MW 45x25 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Lateral Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 208.06 kg / 458.70 pounds
5 651 Gs
31.21 kg / 68.80 pounds
31209 g / 306.2 N
 N/A
1 mm 199.55 kg / 439.92 pounds
9 023 Gs
29.93 kg / 65.99 pounds
29932 g / 293.6 N
 179.59 kg / 395.93 pounds
~0 Gs
2 mm 190.95 kg / 420.96 pounds
8 826 Gs
28.64 kg / 63.14 pounds
28642 g / 281.0 N
 171.85 kg / 378.87 pounds
~0 Gs
3 mm 182.46 kg / 402.26 pounds
8 628 Gs
27.37 kg / 60.34 pounds
27369 g / 268.5 N
 164.22 kg / 362.03 pounds
~0 Gs
5 mm 165.94 kg / 365.83 pounds
8 228 Gs
24.89 kg / 54.87 pounds
24891 g / 244.2 N
 149.35 kg / 329.25 pounds
~0 Gs
10 mm 128.14 kg / 282.49 pounds
7 230 Gs
19.22 kg / 42.37 pounds
19221 g / 188.6 N
 115.32 kg / 254.24 pounds
~0 Gs
20 mm 71.33 kg / 157.26 pounds
5 394 Gs
10.70 kg / 23.59 pounds
10700 g / 105.0 N
 64.20 kg / 141.54 pounds
~0 Gs
50 mm 10.72 kg / 23.63 pounds
2 091 Gs
1.61 kg / 3.54 pounds
1608 g / 15.8 N
 9.65 kg / 21.26 pounds
~0 Gs
60 mm 5.94 kg / 13.10 pounds
1 557 Gs
0.89 kg / 1.96 pounds
891 g / 8.7 N
 5.35 kg / 11.79 pounds
~0 Gs
70 mm 3.41 kg / 7.52 pounds
1 180 Gs
0.51 kg / 1.13 pounds
512 g / 5.0 N
 3.07 kg / 6.77 pounds
~0 Gs
80 mm 2.03 kg / 4.48 pounds
910 Gs
0.30 kg / 0.67 pounds
305 g / 3.0 N
 1.83 kg / 4.03 pounds
~0 Gs
90 mm 1.25 kg / 2.76 pounds
714 Gs
0.19 kg / 0.41 pounds
188 g / 1.8 N
 1.13 kg / 2.48 pounds
~0 Gs
100 mm 0.79 kg / 1.75 pounds
569 Gs
0.12 kg / 0.26 pounds
119 g / 1.2 N
 0.71 kg / 1.58 pounds
~0 Gs
Two strong neodymiums interact from a much further distance than a magnet and sheet combination. The setup of magnet-to-magnet produces a massive flux and a larger range of action. Want to build a powerful holder? Use a pair of magnets instead of a neodymium and a steel. Exercise caution that when attracting two neodymiums, the collision energy is extreme. The levitation is slightly lower than the connection force, but still large.
*Field value between like poles is approximately ~0 Gs at the midpoint between the magnets (due to field cancellation).
* Estimates show shear force of a pair of matching neodymium magnets (friction ~0.15 for Ni-Ni layer).

Table 7: Safety (HSE) (implants) - precautionary measures
MW 45x25 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 24.0 cm
Hearing aid 10 Gs (1.0 mT) 19.0 cm
Mechanical watch 20 Gs (2.0 mT) 14.5 cm
Phone / Smartphone 40 Gs (4.0 mT) 11.5 cm
Remote 50 Gs (5.0 mT) 10.5 cm
Payment card 400 Gs (40.0 mT) 4.5 cm
HDD hard drive 600 Gs (60.0 mT) 3.5 cm
Powerful magnet radiation poses a large risk to IT equipment as well as medical implants. These magnets generate a field that prevents correct functioning of sensitive medical devices. Remember: the invisible magnetic field penetrates the body and glass. Increased vigilance must be exercised by people with hearing aids and insulin pumps. Also at risk are: mechanical watches, car keys, membranes, and displays. Avoid contact with magnetic cards, HDD media, or sensitive navigation tools.

Table 8: Dynamics (kinetic energy) - warning
MW 45x25 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 18.11 km/h
(5.03 m/s)
 3.77 J
30 mm 26.71 km/h
(7.42 m/s)
 8.21 J
50 mm 33.97 km/h
(9.43 m/s)
 13.27 J
100 mm 47.92 km/h
(13.31 m/s)
 26.42 J
Magnetic elements are prone to chipping – a collision with steel can result in shattering. Pay attention to connection velocity – a magnet released freely becomes dangerous. Kinetic force can trigger coating fragments or injury to fingers. Always hold the magnet during mounting so it doesn't hit with great force against the steel surface. A contact at a velocity of dozens of km/h almost guarantees destruction of the neodymium. Use safety goggles when working with large magnets.

Table 9: Coating parameters (durability)
MW 45x25 / 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. Note the thickness of the protective layer.

Table 10: Electrical data (Pc)
MW 45x25 / N38

Parameter Value SI Unit / Description
Magnetic Flux 73 928 Mx 739.3 µWb
Pc Coefficient 0.63 High (Stable)
Total magnetic flux emitted by the pole surface. Key data in coil applications as well as sensors. Pc value defines the magnet's operating point.

Table 11: Submerged application
MW 45x25 / N38

Environment Effective steel pull Effect
Air (land) 67.33 kg Standard
Water (riverbed) 77.09 kg
(+9.76 kg buoyancy gain)
+14.5%
Warning: 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. Shear force

*Warning: On a vertical surface, the magnet holds merely approx. 20-30% of its max power.

2. Plate thickness effect

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

3. Thermal stability

*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) = 0.63

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
Chemical composition
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: 010072-2026
Magnet Unit Converter
Magnet pull force
Field Strength
Just fill in any input, to let the tool compute everything else automatically.

See also proposals

MW 22x10 / N38 - cylindrical magnet
Product available Ships tomorrow

MW 22x10 / N38 - cylindrical magnet

11.30 ZŁ brutto / pcs
MW 3x1 / N38 - cylindrical magnet
Product available Ships tomorrow

MW 3x1 / N38 - cylindrical magnet

0.1353 ZŁ brutto / pcs
MW 12x1 / N38 - cylindrical magnet
Product available Ships tomorrow

MW 12x1 / N38 - cylindrical magnet

0.578 ZŁ brutto / pcs
MPL 5x5x1 / N38 - lamellar magnet
Product available Ships tomorrow

MPL 5x5x1 / N38 - lamellar magnet

0.1845 ZŁ brutto / pcs
The presented product is a very strong rod magnet, composed of modern NdFeB material, which, with dimensions of Ø45x25 mm, guarantees the highest energy density. This specific item is characterized by an accuracy of ±0.1mm and professional build quality, making it an ideal solution for professional engineers and designers. As a cylindrical magnet with significant force (approx. 67.33 kg), this product is in stock from our warehouse in Poland, ensuring quick order fulfillment. Additionally, its triple-layer Ni-Cu-Ni coating secures it against corrosion in standard operating conditions, guaranteeing an aesthetic appearance and durability for years.
This model is perfect for building electric motors, advanced sensors, and efficient filters, where field concentration on a small surface counts. Thanks to the high power of 660.51 N with a weight of only 298.21 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 immediate cracking of this professional component. To ensure stability in automation, specialized industrial adhesives are used, which are safe for nickel and fill the gap, guaranteeing durability of the connection.
Magnets N38 are suitable for 90% of applications in automation and machine building, where extreme miniaturization with maximum force is not required. If you need even stronger magnets in the same volume (Ø45x25), 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 Ø45x25 mm, which, at a weight of 298.21 g, makes it an element with impressive magnetic energy density. The value of 660.51 N means that the magnet is capable of holding a weight many times exceeding its own mass of 298.21 g. The product has a [NiCuNi] coating, which secures it 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 45 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 through the diameter if your project requires it.

Strengths and weaknesses of neodymium magnets.

Advantages

Apart from their consistent power, neodymium magnets have these key benefits:
  • They do not lose magnetism, even over approximately ten years – the reduction in strength is only ~1% (theoretically),
  • Magnets perfectly resist against demagnetization caused by foreign field sources,
  • A magnet with a metallic nickel surface has an effective appearance,
  • Neodymium magnets achieve maximum magnetic induction on a contact point, which ensures high operational effectiveness,
  • Through (adequate) combination of ingredients, they can achieve high thermal strength, allowing for operation at temperatures approaching 230°C and above...
  • Thanks to freedom in shaping and the ability to customize to individual projects,
  • Universal use in electronics industry – they are used in hard drives, electric motors, medical devices, as well as technologically advanced constructions.
  • Thanks to their power density, small magnets offer high operating force, with minimal size,

Weaknesses

Disadvantages of NdFeB magnets:
  • Susceptibility to cracking is one of their disadvantages. Upon intense impact they can fracture. We recommend keeping them in a steel housing, which not only protects them against impacts but also increases their durability
  • NdFeB magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of strength (a factor is the shape as well as dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely resistant to heat
  • When exposed to humidity, magnets usually rust. To use them in conditions outside, it is recommended to use protective magnets, such as those in rubber or plastics, which secure oxidation as well as corrosion.
  • Limited ability of creating threads in the magnet and complicated shapes - preferred is casing - magnet mounting.
  • Health risk to health – tiny shards of magnets can be dangerous, in case of ingestion, which becomes key in the context of child safety. Additionally, tiny parts of these products can complicate diagnosis medical after entering the body.
  • Due to expensive raw materials, their price is higher than average,

Lifting parameters

Maximum holding power of the magnet – what it depends on?

The specified lifting capacity represents the limit force, measured under ideal test conditions, specifically:
  • with the contact of a yoke made of special test steel, guaranteeing full magnetic saturation
  • whose transverse dimension equals approx. 10 mm
  • with a surface cleaned and smooth
  • without any insulating layer between the magnet and steel
  • for force applied at a right angle (pull-off, not shear)
  • at ambient temperature approx. 20 degrees Celsius

Practical aspects of lifting capacity – factors

Please note that the working load will differ subject to the following factors, in order of importance:
  • Gap between surfaces – even a fraction of a millimeter of separation (caused e.g. by varnish or unevenness) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
  • Force direction – remember that the magnet has greatest strength perpendicularly. Under shear forces, the holding force drops significantly, often to levels of 20-30% of the nominal value.
  • Substrate thickness – for full efficiency, the steel must be adequately massive. Paper-thin metal limits the attraction force (the magnet "punches through" it).
  • Material composition – not every steel reacts the same. High carbon content weaken the interaction with the magnet.
  • Plate texture – smooth surfaces guarantee perfect abutment, which increases force. Rough surfaces weaken the grip.
  • Thermal environment – temperature increase results in weakening of force. It is worth remembering the thermal limit for a given model.

Holding force was measured on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, in contrast under parallel forces the lifting capacity is smaller. Moreover, even a small distance between the magnet’s surface and the plate reduces the holding force.

Precautions when working with neodymium magnets
Thermal limits

Watch the temperature. Heating the magnet above 80 degrees Celsius will ruin its magnetic structure and pulling force.

Swallowing risk

Only for adults. Tiny parts can be swallowed, causing serious injuries. Keep out of reach of kids and pets.

Keep away from electronics

Navigation devices and smartphones are extremely sensitive to magnetic fields. Direct contact with a powerful NdFeB magnet can ruin the internal compass in your phone.

Finger safety

Pinching hazard: The pulling power is so great that it can cause blood blisters, crushing, and broken bones. Protective gloves are recommended.

Respect the power

Be careful. Rare earth magnets attract from a distance and snap with massive power, often faster than you can move away.

Protective goggles

Neodymium magnets are sintered ceramics, which means they are prone to chipping. Clashing of two magnets leads to them shattering into shards.

Warning for allergy sufferers

Certain individuals suffer from a contact allergy to nickel, which is the standard coating for NdFeB magnets. Prolonged contact may cause an allergic reaction. We strongly advise wear safety gloves.

Dust explosion hazard

Powder produced during grinding of magnets is combustible. Do not drill into magnets unless you are an expert.

Data carriers

Do not bring magnets near a wallet, laptop, or screen. The magnetic field can permanently damage these devices and wipe information from cards.

Pacemakers

Life threat: Neodymium magnets can deactivate heart devices and defibrillators. Stay away if you have electronic implants.

Warning! More info about risks in the article: Safety of working with magnets.