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MW 2x4 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010055

GTIN/EAN: 5906301810544

5.00
Load capacity 0.09 kg / 0.86 N Magnetic Induction 597.70 mT / 5977 Gs
Diameter Ø
2 mm [±0,1 mm]
Height
4 mm [±0,1 mm]
Weight
0.09 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel
check properties »

0.1700 zł net / pcs

0.209 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 details - MW 2x4 / N38 - cylindrical magnet

Specification / characteristics - MW 2x4 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010055
GTIN/EAN 5906301810544
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 2 mm [±0,1 mm]
Height 4 mm [±0,1 mm]
Weight 0.09 g
Magnetization Direction ↑ axial
Load capacity ~ ? 0.09 kg / 0.86 N
Magnetic Induction ~ ? 597.70 mT / 5977 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 2x4 / N38 - cylindrical magnet
properties values units
remenance Br [min. - max.] ? 12.2-12.6 kGs
remenance Br [min. - max.] ? 1220-1260 mT
coercivity bHc ? 10.8-11.5 kOe
coercivity bHc ? 860-915 kA/m
actual internal force iHc ≥ 12 kOe
actual internal force iHc ≥ 955 kA/m
energy density [min. - max.] ? 36-38 BH max MGOe
energy density [min. - max.] ? 287-303 BH max KJ/m
max. temperature ? ≤ 80 °C

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C
properties values units
Vickers hardness ≥550 Hv
Density ≥7.4 g/cm3
Curie Temperature TC 310 °C
Curie Temperature TF 590 °F
Specific resistance 150 μΩ⋅cm
Bending strength 250 MPa
Compressive strength 1000~1100 MPa
Thermal expansion parallel (∥) to orientation (M) (3-4) x 10-6 °C-1
Thermal expansion perpendicular (⊥) to orientation (M) -(1-3) x 10-6 °C-1
Young's modulus 1.7 x 104 kg/mm²

Technical analysis of the magnet - technical parameters

The following data constitute the outcome of a engineering calculation. Values were calculated on models for the material Nd2Fe14B. Actual conditions might slightly differ from theoretical values. Please consider these data as a preliminary roadmap when designing systems.

Table 1: Static pull force (force vs gap) - power drop
MW 2x4 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 5954 Gs
595.4 mT
 0.09 kg / 0.20 LBS
90.0 g / 0.9 N
 weak grip
1 mm 1696 Gs
169.6 mT
 0.01 kg / 0.02 LBS
7.3 g / 0.1 N
 weak grip
2 mm 570 Gs
57.0 mT
 0.00 kg / 0.00 LBS
0.8 g / 0.0 N
 weak grip
3 mm 256 Gs
25.6 mT
 0.00 kg / 0.00 LBS
0.2 g / 0.0 N
 weak grip
5 mm 82 Gs
8.2 mT
 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
 weak grip
10 mm 15 Gs
1.5 mT
 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
 weak grip
15 mm 5 Gs
0.5 mT
 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
 weak grip
20 mm 2 Gs
0.2 mT
 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
 weak grip
30 mm 1 Gs
0.1 mT
 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
 weak grip
50 mm 0 Gs
0.0 mT
 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
 weak grip
Magnetic force weakens sharply per each millimeter of distance. Remember that even the smallest gap (e.g., contamination, paint, dust) significantly diminishes the holding power. Magnets work strongest during direct contact; gap weakens the power. Notice how flashily the load capacity fall, when the product does not touch flatly to the metal substrate. When planning the arrangement, avoid redundant distances.

Table 2: Shear load (vertical surface)
MW 2x4 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.02 kg / 0.04 LBS
18.0 g / 0.2 N
1 mm Stal (~0.2) 0.00 kg / 0.00 LBS
2.0 g / 0.0 N
2 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
3 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
5 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
10 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
15 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
20 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 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
The table below calculates the theoretical shear load needed to initiate the shifting of the magnet downwards along a vertical steel plate (considering typical friction coefficient). This parameter depends on the distance between the magnet and the surface.

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MW 2x4 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.03 kg / 0.06 LBS
27.0 g / 0.3 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.02 kg / 0.04 LBS
18.0 g / 0.2 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.01 kg / 0.02 LBS
9.0 g / 0.1 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
0.05 kg / 0.10 LBS
45.0 g / 0.4 N
When mounting a element on a vertical wall (e.g., a board), it you can count on just about 20%-30% of its nominal power. Gravitational force as well as a weak degree of grip mean that holders move down faster than they pull off. Want to create a hanger? Note that the shear force is noticeably lower than the maximum static pull force. On a slippery surface, the holder will give way down under a significantly smaller cargo. Application of an anti-slip coating can drastically improve the result.

Table 4: Steel thickness (saturation) - power losses
MW 2x4 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.01 kg / 0.02 LBS
9.0 g / 0.1 N
1 mm
25%
 0.02 kg / 0.05 LBS
22.5 g / 0.2 N
2 mm
50%
 0.05 kg / 0.10 LBS
45.0 g / 0.4 N
3 mm
75%
 0.07 kg / 0.15 LBS
67.5 g / 0.7 N
5 mm
100%
 0.09 kg / 0.20 LBS
90.0 g / 0.9 N
10 mm
100%
 0.09 kg / 0.20 LBS
90.0 g / 0.9 N
11 mm
100%
 0.09 kg / 0.20 LBS
90.0 g / 0.9 N
12 mm
100%
 0.09 kg / 0.20 LBS
90.0 g / 0.9 N
A thin sheet is unable to conduct the full magnetic flux, which wastes potential of the holder. If you attach a powerful product to a too thin substrate, the magnetism will pass right through and the attraction force will be weaker. To squeeze full efficiency of this neodymium's potential, you need a suitably thick backing of metal. The material oversaturation causes that on delicate walls (e.g., thin profiles), the holder holds weaker. We suggest choosing the steel cross-section according to the table below.

Table 5: Thermal stability (stability) - power drop
MW 2x4 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 0.09 kg / 0.20 LBS
90.0 g / 0.9 N
 OK
40 °C -2.2% 0.09 kg / 0.19 LBS
88.0 g / 0.9 N
 OK
60 °C -4.4% 0.09 kg / 0.19 LBS
86.0 g / 0.8 N
 OK
80 °C -6.6% 0.08 kg / 0.19 LBS
84.1 g / 0.8 N
100 °C -28.8% 0.06 kg / 0.14 LBS
64.1 g / 0.6 N
Ordinary NdFeB products irreversibly lose power after exceeding the maximum temperature. Watch out for overheating – heat can irreversibly demagnetize this product. With increasing heat, the neodymium's power temporarily decreases. Avoid using this product in hot environments higher than its operating temperature limit. Too high temperature will result in irreversible degradation of magnetic properties.
*Engineering note: Temperature resistance is determined by both grade, as well as the dimension ratios. Low-profile magnets (low permeance coefficient) may lose charge permanently under lower heat stress than taller cylinders. The danger warning in the table indicates a risk of irreversible loss for this particular item.

Table 6: Magnet-Magnet interaction (repulsion) - field collision
MW 2x4 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Sliding Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 0.69 kg / 1.51 LBS
6 090 Gs
0.10 kg / 0.23 LBS
103 g / 1.0 N
 N/A
1 mm 0.21 kg / 0.46 LBS
6 559 Gs
0.03 kg / 0.07 LBS
31 g / 0.3 N
 0.19 kg / 0.41 LBS
~0 Gs
2 mm 0.06 kg / 0.12 LBS
3 391 Gs
0.01 kg / 0.02 LBS
8 g / 0.1 N
 0.05 kg / 0.11 LBS
~0 Gs
3 mm 0.02 kg / 0.04 LBS
1 883 Gs
0.00 kg / 0.01 LBS
3 g / 0.0 N
 0.02 kg / 0.03 LBS
~0 Gs
5 mm 0.00 kg / 0.01 LBS
743 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
10 mm 0.00 kg / 0.00 LBS
165 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
20 mm 0.00 kg / 0.00 LBS
30 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
50 mm 0.00 kg / 0.00 LBS
3 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
60 mm 0.00 kg / 0.00 LBS
2 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
1 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
1 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
0 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
0 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
Two magnetic products interact from a much further distance than a magnet and steel combination. The connection of two magnets produces a massive flux and a further horizon of performance. Planning to create a strong closure? Apply two magnets instead of a neodymium and a striker plate. Be careful that when connecting a pair of magnets, the impact force is massive. The repulsion force is a bit weaker than the connection force, but still impressive.
*The magnetic induction for N-N configuration drops to ~0 Gs at the midpoint between the magnets (due to field cancellation).
* Results apply to friction force of dual identical magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Protective zones (implants) - precautionary measures
MW 2x4 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 2.0 cm
Hearing aid 10 Gs (1.0 mT) 1.5 cm
Timepiece 20 Gs (2.0 mT) 1.0 cm
Phone / Smartphone 40 Gs (4.0 mT) 1.0 cm
Remote 50 Gs (5.0 mT) 1.0 cm
Payment card 400 Gs (40.0 mT) 0.5 cm
HDD hard drive 600 Gs (60.0 mT) 0.5 cm
A strong magnetic field poses a serious hazard to electronics as well as medical implants. These neodymiums produce a flux that prevents correct functioning of sensitive medical devices. Be aware: the invisible magnetic field acts through matter and plastic. Increased vigilance must be exercised by people with hearing aids and drug dispensers. Influence will be felt by: automatic timepieces, remotes, membranes, and displays. Do not place the magnet near cards, hard drives, or sensitive navigation tools.

Table 8: Collisions (kinetic energy) - warning
MW 2x4 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 10.39 km/h
(2.89 m/s)
 0.00 J
30 mm 10.39 km/h
(2.89 m/s)
 0.00 J
50 mm 10.39 km/h
(2.89 m/s)
 0.00 J
100 mm 10.40 km/h
(2.89 m/s)
 0.00 J
Magnetic elements are delicate – a violent impact against metal causes immediate chipping. Pay attention to connection velocity – a neodymium left loose turns into a projectile. Impact energy can trigger coating fragments or injury to fingers. Always hold the magnet during bringing near metal so it doesn't hit violently against the metal. A contact at a velocity of dozens of km/h ends with a crack of the neodymium. Use safety goggles when handling with large magnets.

Table 9: Coating parameters (durability)
MW 2x4 / 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. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Construction data (Flux)
MW 2x4 / N38

Parameter Value SI Unit / Description
Magnetic Flux 209 Mx 2.1 µWb
Pc Coefficient 1.21 High (Stable)
Flux value emitted by the magnet pole. Key data when building generators and motors. Pc value defines the working geometry.

Table 11: Underwater work (magnet fishing)
MW 2x4 / N38

Environment Effective steel pull Effect
Air (land) 0.09 kg Standard
Water (riverbed) 0.10 kg
(+0.01 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.
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. Vertical hold

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

2. Plate thickness effect

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

3. Heat tolerance

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

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 1.21

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.

Technical and environmental data

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%

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: 010055-2026
Measurement Calculator

Pulling force

Field Strength

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The offered product is an exceptionally strong cylindrical magnet, composed of modern NdFeB material, which, with dimensions of Ø2x4 mm, guarantees optimal power. This specific item features high dimensional repeatability and industrial build quality, making it an ideal solution for the most demanding engineers and designers. As a cylindrical magnet with impressive force (approx. 0.09 kg), this product is available off-the-shelf from our warehouse in Poland, ensuring lightning-fast order fulfillment. Moreover, its Ni-Cu-Ni coating effectively protects it against corrosion in typical operating conditions, ensuring 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 high power of 0.86 N with a weight of only 0.09 g, this rod is indispensable in miniature devices and wherever every gram matters.
Since our magnets have a very precise dimensions, the recommended way is to glue them into holes with a slightly larger diameter (e.g., 2.1 mm) using two-component epoxy glues. To ensure stability in automation, anaerobic resins are used, which are safe for nickel and fill the gap, guaranteeing durability of the connection.
Magnets N38 are strong enough for 90% of applications in automation and machine building, where excessive miniaturization with maximum force is not required. If you need the strongest magnets in the same volume (Ø2x4), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our store.
This model is characterized by dimensions Ø2x4 mm, which, at a weight of 0.09 g, makes it an element with high magnetic energy density. The key parameter here is the lifting capacity amounting to approximately 0.09 kg (force ~0.86 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 2 mm. Such an arrangement is standard when connecting magnets in stacks (e.g., in filters) or when mounting in sockets at the bottom of a hole. On request, we can also produce versions magnetized diametrically if your project requires it.

Advantages and disadvantages of neodymium magnets.

Benefits

In addition to their long-term stability, neodymium magnets provide the following advantages:
  • They virtually do not lose power, because even after 10 years the performance loss is only ~1% (according to literature),
  • Neodymium magnets are distinguished by extremely resistant to magnetic field loss caused by external magnetic fields,
  • A magnet with a shiny gold surface is more attractive,
  • Magnets are characterized by maximum magnetic induction on the outer layer,
  • Through (appropriate) combination of ingredients, they can achieve high thermal strength, allowing for action at temperatures reaching 230°C and above...
  • Thanks to versatility in constructing and the ability to customize to client solutions,
  • Universal use in innovative solutions – they are commonly used in mass storage devices, electric motors, medical equipment, as well as other advanced devices.
  • Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in small dimensions, which allows their use in miniature devices

Weaknesses

Cons of neodymium magnets: weaknesses and usage proposals
  • They are fragile upon heavy impacts. To avoid cracks, it is worth protecting magnets in a protective case. Such protection not only protects the magnet but also improves its resistance to damage
  • Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of power (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 very resistant to heat
  • Magnets exposed to a humid environment can rust. Therefore when using outdoors, we recommend using waterproof magnets made of rubber, plastic or other material protecting against moisture
  • Due to limitations in producing threads and complicated shapes in magnets, we recommend using cover - magnetic holder.
  • Health risk resulting from small fragments of magnets are risky, when accidentally swallowed, which is particularly important in the aspect of protecting the youngest. Furthermore, small components of these devices can complicate diagnosis medical in case of swallowing.
  • High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which can limit application in large quantities

Pull force analysis

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

The lifting capacity listed is a measurement result executed under standard conditions:
  • with the contact of a yoke made of special test steel, ensuring full magnetic saturation
  • possessing a thickness of at least 10 mm to avoid saturation
  • with a plane perfectly flat
  • with zero gap (without paint)
  • under perpendicular force direction (90-degree angle)
  • at ambient temperature approx. 20 degrees Celsius

Practical aspects of lifting capacity – factors

Please note that the application force may be lower depending on the following factors, starting with the most relevant:
  • Distance – existence of any layer (rust, dirt, air) interrupts the magnetic circuit, which reduces capacity steeply (even by 50% at 0.5 mm).
  • Loading method – catalog parameter refers to detachment vertically. When applying parallel force, the magnet holds much less (often approx. 20-30% of nominal force).
  • Element thickness – for full efficiency, the steel must be adequately massive. Thin sheet restricts the lifting capacity (the magnet "punches through" it).
  • Plate material – low-carbon steel gives the best results. Alloy admixtures lower magnetic properties and lifting capacity.
  • Surface finish – full contact is obtained only on polished steel. Rough texture reduce the real contact area, weakening the magnet.
  • Thermal environment – heating the magnet causes a temporary drop of induction. 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, in contrast under shearing force the holding force is lower. Moreover, even a slight gap between the magnet’s surface and the plate lowers the load capacity.

Safe handling of NdFeB magnets
GPS and phone interference

Remember: neodymium magnets generate a field that confuses precision electronics. Maintain a separation from your phone, tablet, and navigation systems.

Shattering risk

Protect your eyes. Magnets can fracture upon uncontrolled impact, launching shards into the air. We recommend safety glasses.

Handling guide

Exercise caution. Rare earth magnets attract from a distance and snap with massive power, often quicker than you can react.

Life threat

Life threat: Strong magnets can deactivate heart devices and defibrillators. Do not approach if you have medical devices.

Maximum temperature

Watch the temperature. Heating the magnet to high heat will destroy its magnetic structure and strength.

Pinching danger

Danger of trauma: The attraction force is so immense that it can cause blood blisters, pinching, and broken bones. Use thick gloves.

Choking Hazard

Only for adults. Small elements pose a choking risk, causing severe trauma. Store out of reach of kids and pets.

Protect data

Do not bring magnets close to a purse, computer, or TV. The magnetic field can permanently damage these devices and wipe information from cards.

Sensitization to coating

Certain individuals have a sensitization to Ni, which is the typical protective layer for NdFeB magnets. Frequent touching may cause a rash. It is best to use protective gloves.

Machining danger

Powder created during machining of magnets is combustible. Avoid drilling into magnets without proper cooling and knowledge.

Important! Looking for details? Read our article: Why are neodymium magnets dangerous?