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MW 8x20 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010475

GTIN/EAN: 5906301811138

5.00
Load capacity 1.30 kg / 12.75 N Magnetic Induction 607.01 mT / 6070 Gs
Diameter Ø
8 mm [±0,1 mm]
Height
20 mm [±0,1 mm]
Weight
7.54 g
Magnetization Direction
→ diametrical
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

product specifications »

3.74 zł net / pcs

4.60 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

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 of the product - MW 8x20 / N38 - cylindrical magnet

Specification / characteristics - MW 8x20 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010475
GTIN/EAN 5906301811138
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 8 mm [±0,1 mm]
Height 20 mm [±0,1 mm]
Weight 7.54 g
Magnetization Direction → diametrical
Load capacity ~ ? 1.30 kg / 12.75 N
Magnetic Induction ~ ? 607.01 mT / 6070 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 8x20 / 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 modeling of the product - data

Presented information constitute the outcome of a engineering calculation. Values were calculated on models for the material Nd2Fe14B. Real-world conditions might slightly differ from theoretical values. Treat these data as a supplementary guide during assembly planning.

Table 1: Static force (force vs distance) - characteristics
MW 8x20 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 6064 Gs
606.4 mT
 1.30 kg / 2.87 pounds
1300.0 g / 12.8 N
 safe
1 mm 4587 Gs
458.7 mT
 0.74 kg / 1.64 pounds
743.7 g / 7.3 N
 safe
2 mm 3327 Gs
332.7 mT
 0.39 kg / 0.86 pounds
391.4 g / 3.8 N
 safe
3 mm 2388 Gs
238.8 mT
 0.20 kg / 0.44 pounds
201.6 g / 2.0 N
 safe
5 mm 1281 Gs
128.1 mT
 0.06 kg / 0.13 pounds
58.0 g / 0.6 N
 safe
10 mm 389 Gs
38.9 mT
 0.01 kg / 0.01 pounds
5.4 g / 0.1 N
 safe
15 mm 169 Gs
16.9 mT
 0.00 kg / 0.00 pounds
1.0 g / 0.0 N
 safe
20 mm 90 Gs
9.0 mT
 0.00 kg / 0.00 pounds
0.3 g / 0.0 N
 safe
30 mm 35 Gs
3.5 mT
 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
 safe
50 mm 10 Gs
1.0 mT
 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
 safe
Magnetic force decreases significantly with every subsequent millimeter of spacing. Remember that even the smallest gap (e.g., contamination, paint, rust) noticeably weakens the grip. Magnetic products work most effectively in perfect adhesion; air break weakens the power. Notice how rapidly the load capacity plummet, when the magnet does not touch directly to the steel surface. When planning the mounting, eliminate additional spacers.

Table 2: Sliding capacity (wall)
MW 8x20 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.26 kg / 0.57 pounds
260.0 g / 2.6 N
1 mm Stal (~0.2) 0.15 kg / 0.33 pounds
148.0 g / 1.5 N
2 mm Stal (~0.2) 0.08 kg / 0.17 pounds
78.0 g / 0.8 N
3 mm Stal (~0.2) 0.04 kg / 0.09 pounds
40.0 g / 0.4 N
5 mm Stal (~0.2) 0.01 kg / 0.03 pounds
12.0 g / 0.1 N
10 mm Stal (~0.2) 0.00 kg / 0.00 pounds
2.0 g / 0.0 N
15 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
20 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
30 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
50 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
The following data calculates the approximate holding capacity sufficient to start the shifting of the magnet down on a upright metal surface (assuming standard friction coefficient). The holding force varies with the distance between the magnet and the surface.

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MW 8x20 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.39 kg / 0.86 pounds
390.0 g / 3.8 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.26 kg / 0.57 pounds
260.0 g / 2.6 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.13 kg / 0.29 pounds
130.0 g / 1.3 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
0.65 kg / 1.43 pounds
650.0 g / 6.4 N
When mounting a magnet on a upright surface (e.g., a board), it you can count on just about 20%-30% of nominal attraction strength. Gravitational force as well as a low friction coefficient cause that holders slip faster than they pop off the substrate. Designing a hanger? Consider that the sliding force is significantly lower than the maximum static pull force. On a smooth steel, the magnet will slide down under a significantly smaller cargo. Using a rubber pad can significantly increase the grip.

Table 4: Material efficiency (substrate influence) - sheet metal selection
MW 8x20 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.13 kg / 0.29 pounds
130.0 g / 1.3 N
1 mm
25%
 0.33 kg / 0.72 pounds
325.0 g / 3.2 N
2 mm
50%
 0.65 kg / 1.43 pounds
650.0 g / 6.4 N
3 mm
75%
 0.98 kg / 2.15 pounds
975.0 g / 9.6 N
5 mm
100%
 1.30 kg / 2.87 pounds
1300.0 g / 12.8 N
10 mm
100%
 1.30 kg / 2.87 pounds
1300.0 g / 12.8 N
11 mm
100%
 1.30 kg / 2.87 pounds
1300.0 g / 12.8 N
12 mm
100%
 1.30 kg / 2.87 pounds
1300.0 g / 12.8 N
A too thin steel is incapable of take in the entire magnetic field, which wastes potential of the magnet. If you attach a powerful product to a thin surface, the field will penetrate right through and the pull force will drop sharply. To utilize the maximum of this neodymium's potential, you need a suitably thick piece of steel. The saturation effect means that on thin elements (e.g., thin profiles), the magnet works worse. We recommend selecting the steel thickness from these parameters.

Table 5: Thermal stability (stability) - power drop
MW 8x20 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 1.30 kg / 2.87 pounds
1300.0 g / 12.8 N
 OK
40 °C -2.2% 1.27 kg / 2.80 pounds
1271.4 g / 12.5 N
 OK
60 °C -4.4% 1.24 kg / 2.74 pounds
1242.8 g / 12.2 N
 OK
80 °C -6.6% 1.21 kg / 2.68 pounds
1214.2 g / 11.9 N
100 °C -28.8% 0.93 kg / 2.04 pounds
925.6 g / 9.1 N
Ordinary NdFeB products lose strength after exceeding the maximum temperature. Watch out for overheating – high temperature can permanently destroy this magnet. As the temperature rises, the neodymium's capacity briefly drops. Do not use this magnet near heat sources higher than its operating temperature limit. Exceeding the critical threshold will cause destruction of magnetic properties.
*Engineering note: Temperature resistance is determined by both grade, but also on the magnet's shape. Flat magnets (pancake types) risk losing magnetic properties sooner than taller cylinders. The danger warning in the table points to a risk of irreversible loss for this particular item.

Table 6: Two magnets (attraction) - forces in the system
MW 8x20 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Strength (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 11.40 kg / 25.12 pounds
6 154 Gs
1.71 kg / 3.77 pounds
1709 g / 16.8 N
 N/A
1 mm 8.76 kg / 19.31 pounds
10 632 Gs
1.31 kg / 2.90 pounds
1314 g / 12.9 N
 7.88 kg / 17.38 pounds
~0 Gs
2 mm 6.52 kg / 14.37 pounds
9 174 Gs
0.98 kg / 2.16 pounds
978 g / 9.6 N
 5.87 kg / 12.94 pounds
~0 Gs
3 mm 4.76 kg / 10.49 pounds
7 837 Gs
0.71 kg / 1.57 pounds
714 g / 7.0 N
 4.28 kg / 9.44 pounds
~0 Gs
5 mm 2.46 kg / 5.43 pounds
5 637 Gs
0.37 kg / 0.81 pounds
369 g / 3.6 N
 2.22 kg / 4.88 pounds
~0 Gs
10 mm 0.51 kg / 1.12 pounds
2 561 Gs
0.08 kg / 0.17 pounds
76 g / 0.7 N
 0.46 kg / 1.01 pounds
~0 Gs
20 mm 0.05 kg / 0.10 pounds
778 Gs
0.01 kg / 0.02 pounds
7 g / 0.1 N
 0.04 kg / 0.09 pounds
~0 Gs
50 mm 0.00 kg / 0.00 pounds
107 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
 0.00 kg / 0.00 pounds
~0 Gs
60 mm 0.00 kg / 0.00 pounds
69 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
 0.00 kg / 0.00 pounds
~0 Gs
70 mm 0.00 kg / 0.00 pounds
48 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
 0.00 kg / 0.00 pounds
~0 Gs
80 mm 0.00 kg / 0.00 pounds
34 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
 0.00 kg / 0.00 pounds
~0 Gs
90 mm 0.00 kg / 0.00 pounds
25 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
 0.00 kg / 0.00 pounds
~0 Gs
100 mm 0.00 kg / 0.00 pounds
19 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
 0.00 kg / 0.00 pounds
~0 Gs
Two strong neodymiums attract each other from a wider radius than a magnet and sheet setup. The setup of two magnets creates a more powerful interaction and a wider radius of action. Planning to create a solid fastener? Use a pair of magnets instead of one magnet and a steel. Be careful that when connecting a pair of magnets, the collision energy is huge. The repulsion force is a bit weaker than the attraction, but still large.
*The magnetic induction between like poles is approximately ~0 Gs in the exact middle of the gap (caused by magnetic field nullification).
Attention: Figures apply to sliding force of dual identical magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Protective zones (implants) - precautionary measures
MW 8x20 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 6.5 cm
Hearing aid 10 Gs (1.0 mT) 5.0 cm
Timepiece 20 Gs (2.0 mT) 4.0 cm
Mobile device 40 Gs (4.0 mT) 3.0 cm
Car key 50 Gs (5.0 mT) 3.0 cm
Payment card 400 Gs (40.0 mT) 1.0 cm
HDD hard drive 600 Gs (60.0 mT) 1.0 cm
Extremely neodym field poses a serious hazard to electronic devices as well as pacemakers. These neodymiums produce a field that prevents correct functioning of digital equipment. Notice: the invisible magnetic field passes through tissues and plastic. Increased vigilance must be exercised by people with cochlear implants and insulin pumps. Influence will be felt by: mechanical watches, remotes, membranes, and displays. Do not bring the product near payment cards, HDD media, or sensitive navigation tools.

Table 8: Impact energy (cracking risk) - collision effects
MW 8x20 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 8.56 km/h
(2.38 m/s)
 0.02 J
30 mm 8.60 km/h
(2.39 m/s)
 0.02 J
50 mm 8.60 km/h
(2.39 m/s)
 0.02 J
100 mm 8.60 km/h
(2.39 m/s)
 0.02 J
Neodymium magnets are delicate – a strong collision with metal risks their cracking. Control the attraction moment – a neodymium left loose speeds with massive force. Striking energy can cause material chips or dangerous crushing to fingers. Always hold the magnet during installation so it doesn't slam with momentum against the steel surface. A contact at a velocity of dozens of km/h ends with a crack of the neodymium. Use safety goggles when playing with large magnets.

Table 9: Coating parameters (durability)
MW 8x20 / 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. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Electrical data (Flux)
MW 8x20 / N38

Parameter Value SI Unit / Description
Magnetic Flux 3 457 Mx 34.6 µWb
Pc Coefficient 1.31 High (Stable)
Total magnetic flux emitted by the magnet pole. Essential parameter in coil applications and motors. The Pc coefficient determines the magnet's operating point.

Table 11: Underwater work (magnet fishing)
MW 8x20 / N38

Environment Effective steel pull Effect
Air (land) 1.30 kg Standard
Water (riverbed) 1.49 kg
(+0.19 kg buoyancy gain)
+14.5%
Rust risk: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!
Water displaces steel, making heavy objects slightly lighter. However, remember the water resistance when pulling the rope quickly.

1. Wall mount (shear)

*Note: On a vertical wall, the magnet retains just a fraction of its nominal pull.

2. Plate thickness effect

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

3. Thermal stability

*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) = 1.31

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

Elemental analysis

iron (Fe) 64% – 68%
neodymium (Nd) 29% – 32%
boron (B) 1.1% – 1.2%
dysprosium (Dy) 0.5% – 2.0%
coating (Ni-Cu-Ni) < 0.05%

Environmental data

recyclability (EoL) 100%
recycled raw materials ~10% (pre-cons)
carbon footprint low / zredukowany
waste code (EWC) 16 02 16
Safety card (GPSR)
responsible entity
Dhit sp. z o.o.
ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki
tel: +48 22 499 98 98 | e-mail: bok@dhit.pl
batch number/type
id: 010475-2026
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The presented product is an extremely powerful cylinder magnet, composed of durable NdFeB material, which, with dimensions of Ø8x20 mm, guarantees the highest energy density. This specific item boasts a tolerance of ±0.1mm and professional build quality, making it a perfect solution for the most demanding engineers and designers. As a cylindrical magnet with significant force (approx. 1.30 kg), this product is available off-the-shelf from our European logistics center, ensuring quick order fulfillment. Moreover, its triple-layer Ni-Cu-Ni coating effectively protects it against corrosion in typical operating conditions, ensuring an aesthetic appearance and durability for years.
It finds application in DIY projects, advanced automation, and broadly understood industry, serving as a positioning or actuating element. Thanks to the high power of 12.75 N with a weight of only 7.54 g, this cylindrical magnet is indispensable in electronics and wherever low weight is crucial.
Since our magnets have a very precise dimensions, the recommended way is to glue them into holes with a slightly larger diameter (e.g., 8.1 mm) using epoxy glues. To ensure long-term durability in industry, anaerobic resins are used, which do not react with the nickel coating and fill the gap, guaranteeing high repeatability of the connection.
Magnets NdFeB grade N38 are suitable for 90% of applications in modeling and machine building, where excessive miniaturization with maximum force is not required. If you need the strongest magnets in the same volume (Ø8x20), 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 Ø8x20 mm, which, at a weight of 7.54 g, makes it an element with high magnetic energy density. The value of 12.75 N means that the magnet is capable of holding a weight many times exceeding its own mass of 7.54 g. 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 8 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 diametrically if your project requires it.

Advantages and disadvantages of rare earth magnets.

Pros

Apart from their superior magnetic energy, neodymium magnets have these key benefits:
  • Their power remains stable, and after approximately ten years it drops only by ~1% (theoretically),
  • They have excellent resistance to magnetism drop as a result of opposing magnetic fields,
  • By using a reflective coating of silver, the element gains an modern look,
  • Neodymium magnets deliver maximum magnetic induction on a their surface, which increases force concentration,
  • Neodymium magnets are characterized by extremely 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 the potential of accurate forming and customization to individualized needs, NdFeB magnets can be manufactured in a variety of forms and dimensions, which increases their versatility,
  • Huge importance in electronics industry – they are utilized in HDD drives, electric motors, advanced medical instruments, also modern systems.
  • Thanks to efficiency per cm³, small magnets offer high operating force, in miniature format,

Weaknesses

Disadvantages of NdFeB magnets:
  • They are fragile upon too strong impacts. To avoid cracks, it is worth securing magnets in special housings. Such protection not only shields the magnet but also improves its resistance to damage
  • We warn that neodymium magnets can reduce their power at high temperatures. To prevent this, we recommend our specialized [AH] magnets, which work effectively even at 230°C.
  • 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 possibility of creating nuts in the magnet and complex forms - preferred is cover - mounting mechanism.
  • Health risk to health – tiny shards of magnets pose a threat, when accidentally swallowed, which is particularly important in the context of child safety. Additionally, small elements of these devices can be problematic in diagnostics medical after entering the body.
  • High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which can limit application in large quantities

Holding force characteristics

Maximum lifting capacity of the magnet – what contributes to it?

Holding force of 1.30 kg is a result of laboratory testing performed under the following configuration:
  • on a base made of mild steel, optimally conducting the magnetic flux
  • with a cross-section minimum 10 mm
  • characterized by smoothness
  • with total lack of distance (no coatings)
  • for force acting at a right angle (in the magnet axis)
  • at conditions approx. 20°C

Determinants of lifting force in real conditions

Bear in mind that the magnet holding may be lower influenced by elements below, starting with the most relevant:
  • Gap (betwixt the magnet and the metal), since even a microscopic clearance (e.g. 0.5 mm) leads to a decrease in lifting capacity by up to 50% (this also applies to varnish, corrosion or debris).
  • Pull-off angle – note that the magnet holds strongest perpendicularly. Under sliding down, the holding force drops significantly, often to levels of 20-30% of the maximum value.
  • Wall thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field passes through the material instead of converting into lifting capacity.
  • Chemical composition of the base – mild steel gives the best results. Alloy admixtures lower magnetic permeability and holding force.
  • Smoothness – full contact is possible only on smooth steel. Rough texture reduce the real contact area, reducing force.
  • Temperature influence – high temperature reduces pulling force. Too high temperature can permanently damage the magnet.

Holding force was checked on the plate surface of 20 mm thickness, when the force acted perpendicularly, whereas under shearing force the lifting capacity is smaller. In addition, even a minimal clearance between the magnet and the plate lowers the load capacity.

Safe handling of neodymium magnets
Thermal limits

Standard neodymium magnets (N-type) lose power when the temperature exceeds 80°C. The loss of strength is permanent.

Data carriers

Powerful magnetic fields can corrupt files on payment cards, hard drives, and storage devices. Keep a distance of at least 10 cm.

Danger to the youngest

Neodymium magnets are not intended for children. Swallowing multiple magnets may result in them attracting across intestines, which constitutes a critical condition and necessitates immediate surgery.

GPS and phone interference

An intense magnetic field disrupts the operation of compasses in phones and navigation systems. Maintain magnets near a smartphone to prevent damaging the sensors.

Risk of cracking

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

Health Danger

Individuals with a pacemaker have to keep an large gap from magnets. The magnetism can stop the operation of the life-saving device.

Mechanical processing

Fire hazard: Neodymium dust is explosive. Avoid machining magnets in home conditions as this risks ignition.

Pinching danger

Big blocks can smash fingers in a fraction of a second. Never put your hand betwixt two attracting surfaces.

Metal Allergy

Certain individuals have a contact allergy to nickel, which is the standard coating for NdFeB magnets. Extended handling might lead to an allergic reaction. We suggest wear protective gloves.

Conscious usage

Be careful. Rare earth magnets act from a long distance and connect with massive power, often quicker than you can react.

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