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MW 70x50 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010496

GTIN/EAN: 5906301811145

Load capacity 168.21 kg / 1650.14 N Magnetic Induction 507.83 mT / 5078 Gs
Diameter Ø
70 mm [±0,1 mm]
Height
50 mm [±0,1 mm]
Weight
1443.17 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

technical parameters »

420.00 zł net / pcs

516.60 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

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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Physical properties - MW 70x50 / N38 - cylindrical magnet

Specification / characteristics - MW 70x50 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010496
GTIN/EAN 5906301811145
Production/Distribution Dhit sp. z o.o.
ul. Zielona 14 05-850 Ożarów Mazowiecki PL
Country of origin Poland / China / Germany
Customs code 85059029
Diameter Ø 70 mm [±0,1 mm]
Height 50 mm [±0,1 mm]
Weight 1443.17 g
Magnetization Direction ↑ axial
Load capacity ~ ? 168.21 kg / 1650.14 N
Magnetic Induction ~ ? 507.83 mT / 5078 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 70x50 / 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

Physical modeling of the product - technical parameters

Presented data constitute the direct effect of a physical analysis. Results rely on models for the material Nd2Fe14B. Operational conditions might slightly deviate from the simulation results. Use these data as a supplementary guide when designing systems.

Table 1: Static force (force vs distance) - power drop
MW 70x50 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 5078 Gs
507.8 mT
 168.21 kg / 370.84 pounds
168210.0 g / 1650.1 N
 dangerous!
1 mm 4935 Gs
493.5 mT
 158.88 kg / 350.26 pounds
158876.4 g / 1558.6 N
 dangerous!
2 mm 4790 Gs
479.0 mT
 149.67 kg / 329.96 pounds
149666.1 g / 1468.2 N
 dangerous!
3 mm 4644 Gs
464.4 mT
 140.71 kg / 310.21 pounds
140708.8 g / 1380.4 N
 dangerous!
5 mm 4354 Gs
435.4 mT
 123.67 kg / 272.64 pounds
123667.4 g / 1213.2 N
 dangerous!
10 mm 3652 Gs
365.2 mT
 87.02 kg / 191.84 pounds
87016.1 g / 853.6 N
 dangerous!
15 mm 3017 Gs
301.7 mT
 59.37 kg / 130.88 pounds
59366.6 g / 582.4 N
 dangerous!
20 mm 2469 Gs
246.9 mT
 39.78 kg / 87.70 pounds
39781.3 g / 390.3 N
 dangerous!
30 mm 1645 Gs
164.5 mT
 17.66 kg / 38.93 pounds
17659.3 g / 173.2 N
 dangerous!
50 mm 773 Gs
77.3 mT
 3.89 kg / 8.59 pounds
3895.0 g / 38.2 N
 medium risk
Magnetic force decreases significantly per each millimeter of distance. Keep in mind that even a microscopic distance (e.g., contamination, paint, rust) noticeably diminishes the holding power. Neodymiums operate most effectively at the point of direct contact; gap drastically cuts the power. Analyze how quickly the pull force plummet, when the magnet does not adhere tightly to the metal substrate. When designing the mounting, avoid redundant distances.

Table 2: Sliding force (wall)
MW 70x50 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 33.64 kg / 74.17 pounds
33642.0 g / 330.0 N
1 mm Stal (~0.2) 31.78 kg / 70.05 pounds
31776.0 g / 311.7 N
2 mm Stal (~0.2) 29.93 kg / 65.99 pounds
29934.0 g / 293.7 N
3 mm Stal (~0.2) 28.14 kg / 62.04 pounds
28142.0 g / 276.1 N
5 mm Stal (~0.2) 24.73 kg / 54.53 pounds
24734.0 g / 242.6 N
10 mm Stal (~0.2) 17.40 kg / 38.37 pounds
17404.0 g / 170.7 N
15 mm Stal (~0.2) 11.87 kg / 26.18 pounds
11874.0 g / 116.5 N
20 mm Stal (~0.2) 7.96 kg / 17.54 pounds
7956.0 g / 78.0 N
30 mm Stal (~0.2) 3.53 kg / 7.79 pounds
3532.0 g / 34.6 N
50 mm Stal (~0.2) 0.78 kg / 1.72 pounds
778.0 g / 7.6 N
This section calculates the estimated holding capacity required to cause the shifting of the magnet downwards on a upright steel wall (assuming standard friction). This value varies with the distance between the magnet and the metal.

Table 3: Vertical assembly (shearing) - vertical pull
MW 70x50 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
50.46 kg / 111.25 pounds
50463.0 g / 495.0 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
33.64 kg / 74.17 pounds
33642.0 g / 330.0 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
16.82 kg / 37.08 pounds
16821.0 g / 165.0 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
84.11 kg / 185.42 pounds
84105.0 g / 825.1 N
When placing a element on a upright plane (e.g., a board), it will maintain only approx. 20%-30% of its nominal power. Gravity as well as a weak degree of grip mean that products slip easier than they pop off the substrate. Planning a wall mount? Remember that the sliding force is much weaker than the maximum static pull force. On a slippery surface, the holder will slip down under a noticeably lighter weight. Application of an anti-slip coating can drastically improve the result.

Table 4: Material efficiency (substrate influence) - sheet metal selection
MW 70x50 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
3%
 5.61 kg / 12.36 pounds
5607.0 g / 55.0 N
1 mm
8%
 14.02 kg / 30.90 pounds
14017.5 g / 137.5 N
2 mm
17%
 28.03 kg / 61.81 pounds
28035.0 g / 275.0 N
3 mm
25%
 42.05 kg / 92.71 pounds
42052.5 g / 412.5 N
5 mm
42%
 70.09 kg / 154.52 pounds
70087.5 g / 687.6 N
10 mm
83%
 140.18 kg / 309.03 pounds
140175.0 g / 1375.1 N
11 mm
92%
 154.19 kg / 339.94 pounds
154192.5 g / 1512.6 N
12 mm
100%
 168.21 kg / 370.84 pounds
168210.0 g / 1650.1 N
A too thin steel is unable to take in the full magnetic flux, which weakens actual performance of the holder. Should you attach a powerful product to a weak sheet, the magnetism will pass right through and the holding will be smaller. To achieve full efficiency of this magnet's potential, you need a suitably thick backing of steel. The saturation phenomenon means that on sheet metal structures (e.g., car bodies), the product holds weaker. We suggest choosing the steel thickness according to the table below.

Table 5: Thermal stability (material behavior) - thermal limit
MW 70x50 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 168.21 kg / 370.84 pounds
168210.0 g / 1650.1 N
 OK
40 °C -2.2% 164.51 kg / 362.68 pounds
164509.4 g / 1613.8 N
 OK
60 °C -4.4% 160.81 kg / 354.52 pounds
160808.8 g / 1577.5 N
 OK
80 °C -6.6% 157.11 kg / 346.36 pounds
157108.1 g / 1541.2 N
100 °C -28.8% 119.77 kg / 264.04 pounds
119765.5 g / 1174.9 N
Standard neodymium magnets lose strength above the temperature limit. Avoid high temperatures – heat can permanently damage this magnet. With increasing heat, the neodymium's capacity briefly lowers. Refrain from using this magnet close to heaters exceeding its safe range. Too high temperature will lead to destruction of magnetic properties.
*Engineering note: Thermal stability is determined by both grade, but also on the magnet's shape. Flat magnets (low permeance coefficient) are more susceptible to demagnetization under lower heat stress than taller cylinders. Red status in the table points to a risk of irreversible loss for this particular item.

Table 6: Two magnets (attraction) - forces in the system
MW 70x50 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 611.75 kg / 1348.67 pounds
5 850 Gs
91.76 kg / 202.30 pounds
91762 g / 900.2 N
 N/A
1 mm 594.86 kg / 1311.43 pounds
10 014 Gs
89.23 kg / 196.72 pounds
89229 g / 875.3 N
 535.37 kg / 1180.29 pounds
~0 Gs
2 mm 577.80 kg / 1273.84 pounds
9 870 Gs
86.67 kg / 191.08 pounds
86670 g / 850.2 N
 520.02 kg / 1146.45 pounds
~0 Gs
3 mm 560.95 kg / 1236.68 pounds
9 725 Gs
84.14 kg / 185.50 pounds
84142 g / 825.4 N
 504.85 kg / 1113.01 pounds
~0 Gs
5 mm 527.90 kg / 1163.81 pounds
9 434 Gs
79.18 kg / 174.57 pounds
79184 g / 776.8 N
 475.11 kg / 1047.43 pounds
~0 Gs
10 mm 449.75 kg / 991.54 pounds
8 708 Gs
67.46 kg / 148.73 pounds
67463 g / 661.8 N
 404.78 kg / 892.38 pounds
~0 Gs
20 mm 316.46 kg / 697.68 pounds
7 304 Gs
47.47 kg / 104.65 pounds
47469 g / 465.7 N
 284.81 kg / 627.91 pounds
~0 Gs
50 mm 96.30 kg / 212.30 pounds
4 029 Gs
14.44 kg / 31.85 pounds
14445 g / 141.7 N
 86.67 kg / 191.07 pounds
~0 Gs
60 mm 64.22 kg / 141.59 pounds
3 291 Gs
9.63 kg / 21.24 pounds
9634 g / 94.5 N
 57.80 kg / 127.43 pounds
~0 Gs
70 mm 43.17 kg / 95.18 pounds
2 698 Gs
6.48 kg / 14.28 pounds
6476 g / 63.5 N
 38.86 kg / 85.66 pounds
~0 Gs
80 mm 29.36 kg / 64.73 pounds
2 225 Gs
4.40 kg / 9.71 pounds
4404 g / 43.2 N
 26.43 kg / 58.26 pounds
~0 Gs
90 mm 20.25 kg / 44.63 pounds
1 847 Gs
3.04 kg / 6.69 pounds
3037 g / 29.8 N
 18.22 kg / 40.17 pounds
~0 Gs
100 mm 14.17 kg / 31.23 pounds
1 545 Gs
2.12 kg / 4.68 pounds
2125 g / 20.8 N
 12.75 kg / 28.11 pounds
~0 Gs
Two magnetic products attract each other from a wider radius than a magnet and steel combination. The connection of magnet-to-magnet creates a more powerful interaction and a further horizon of action. Want to build a strong closure? Utilize two neodymiums instead of one magnet and a steel. Remember that when connecting a pair of magnets, the impact force is extreme. The levitation is a bit weaker than the attraction, but still impressive.
*Field value in repulsion mode reaches ~0 Gs at the midpoint of the gap (resulting from vector opposition).
* Estimates apply to sliding force of a pair of same neodymium magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Protective zones (implants) - precautionary measures
MW 70x50 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 40.0 cm
Hearing aid 10 Gs (1.0 mT) 31.5 cm
Timepiece 20 Gs (2.0 mT) 24.5 cm
Mobile device 40 Gs (4.0 mT) 19.0 cm
Car key 50 Gs (5.0 mT) 17.5 cm
Payment card 400 Gs (40.0 mT) 7.5 cm
HDD hard drive 600 Gs (60.0 mT) 6.0 cm
Powerful magnet radiation is a real danger to electronic devices as well as pacemakers. These neodymiums produce a field that destroys function of sensitive medical devices. Be aware: the unseen radiation acts through matter and glass. Increased vigilance must be exercised by people with hearing aids and insulin pumps. Also at risk are: automatic timepieces, remotes, membranes, and displays. Do not place the magnet near cards, hard drives, or precise measuring instruments.

Table 8: Impact energy (cracking risk) - warning
MW 70x50 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 14.84 km/h
(4.12 m/s)
 12.26 J
30 mm 19.37 km/h
(5.38 m/s)
 20.89 J
50 mm 20.17 km/h
(5.60 m/s)
 22.65 J
100 mm 20.42 km/h
(5.67 m/s)
 23.23 J
Neodymium magnets are prone to chipping – a collision with steel can result in shattering. Pay attention to connection velocity – a magnet released freely turns into a projectile. Striking energy can cause material chips or painful pinches to fingers. Hold the magnet firmly during mounting so it doesn't hit violently against the metal. A contact at a velocity of dozens of km/h almost guarantees destruction of the neodymium. Wear safety glasses when playing with large magnets.

Table 9: Coating parameters (durability)
MW 70x50 / 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: Electrical data (Flux)
MW 70x50 / N38

Parameter Value SI Unit / Description
Magnetic Flux 197 145 Mx 1971.5 µWb
Pc Coefficient 0.74 High (Stable)
Total magnetic flux passing through the pole surface. Key data when building generators as well as sensors. Pc value determines the working geometry.

Table 11: Underwater work (magnet fishing)
MW 70x50 / N38

Environment Effective steel pull Effect
Air (land) 168.21 kg Standard
Water (riverbed) 192.60 kg
(+24.39 kg buoyancy gain)
+14.5%
Rust risk: 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. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Shear force

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

2. Efficiency vs thickness

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

3. Heat tolerance

*For standard magnets, the safety limit is 80°C.

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.74

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 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%

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: 010496-2026
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This product is an incredibly powerful cylindrical magnet, composed of advanced NdFeB material, which, with dimensions of Ø70x50 mm, guarantees the highest energy density. The MW 70x50 / N38 model 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 significant force (approx. 168.21 kg), this product is available off-the-shelf from our European logistics center, ensuring rapid order fulfillment. Furthermore, 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 electric motors, advanced Hall effect sensors, and efficient filters, where field concentration on a small surface counts. Thanks to the high power of 1650.14 N with a weight of only 1443.17 g, this cylindrical magnet is indispensable in electronics and wherever every gram matters.
Due to the delicate structure of the ceramic sinter, you must not use force-fitting (so-called press-fit), as this risks chipping the coating of this precision component. To ensure long-term durability in industry, specialized industrial adhesives are used, which are safe for nickel and fill the gap, guaranteeing high repeatability of the connection.
Grade N38 is the most popular standard for industrial neodymium magnets, offering a great economic balance and operational stability. If you need the strongest magnets in the same volume (Ø70x50), 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 Ø70x50 mm, which, at a weight of 1443.17 g, makes it an element with high magnetic energy density. The key parameter here is the holding force amounting to approximately 168.21 kg (force ~1650.14 N), which, with such compact dimensions, proves the high grade of the NdFeB material. 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 70 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.

Strengths as well as weaknesses of neodymium magnets.

Strengths

Apart from their consistent holding force, neodymium magnets have these key benefits:
  • They have constant strength, and over nearly ten years their performance decreases symbolically – ~1% (in testing),
  • They are extremely resistant to demagnetization induced by presence of other magnetic fields,
  • By using a shiny coating of nickel, the element gains an aesthetic look,
  • Neodymium magnets achieve maximum magnetic induction on a their surface, which allows for strong attraction,
  • Through (appropriate) combination of ingredients, they can achieve high thermal resistance, enabling operation at temperatures reaching 230°C and above...
  • Thanks to versatility in forming and the ability to adapt to individual projects,
  • Fundamental importance in modern industrial fields – they are used in HDD drives, brushless drives, advanced medical instruments, also technologically advanced constructions.
  • Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in small dimensions, which allows their use in small systems

Disadvantages

Disadvantages of NdFeB magnets:
  • They are fragile upon too strong impacts. To avoid cracks, it is worth securing magnets in a protective case. Such protection not only shields the magnet but also increases its resistance to damage
  • We warn that neodymium magnets can reduce their strength at high temperatures. To prevent this, we suggest 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 magnets in rubber or plastics, which prevent oxidation and corrosion.
  • We suggest cover - magnetic holder, due to difficulties in realizing nuts inside the magnet and complex forms.
  • Potential hazard to health – tiny shards of magnets are risky, when accidentally swallowed, which becomes key in the aspect of protecting the youngest. It is also worth noting that small components of these products can be problematic in diagnostics medical in case of swallowing.
  • High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which increases costs of application in large quantities

Holding force characteristics

Best holding force of the magnet in ideal parameters – what it depends on?

The specified lifting capacity refers to the maximum value, obtained under ideal test conditions, namely:
  • using a plate made of high-permeability steel, functioning as a ideal flux conductor
  • possessing a thickness of minimum 10 mm to avoid saturation
  • with an ideally smooth touching surface
  • with direct contact (no coatings)
  • for force acting at a right angle (pull-off, not shear)
  • at standard ambient temperature

Magnet lifting force in use – key factors

In real-world applications, the actual lifting capacity is determined by many variables, ranked from most significant:
  • Distance (betwixt the magnet and the plate), as even a tiny clearance (e.g. 0.5 mm) can cause a drastic drop in lifting capacity by up to 50% (this also applies to varnish, corrosion or dirt).
  • Pull-off angle – note that the magnet holds strongest perpendicularly. Under shear forces, the holding force drops drastically, often to levels of 20-30% of the maximum value.
  • Element thickness – for full efficiency, the steel must be adequately massive. Paper-thin metal restricts the lifting capacity (the magnet "punches through" it).
  • Metal type – different alloys attracts identically. High carbon content weaken the attraction effect.
  • Surface condition – ground elements ensure maximum contact, which increases field saturation. Uneven metal weaken the grip.
  • Heat – neodymium magnets have a negative temperature coefficient. At higher temperatures they lose power, and in frost gain strength (up to a certain limit).

Lifting capacity testing was performed on a smooth plate of suitable thickness, under a perpendicular pulling force, however under attempts to slide the magnet the holding force is lower. In addition, even a minimal clearance between the magnet’s surface and the plate lowers the holding force.

H&S for magnets
Fragile material

Protect your eyes. Magnets can fracture upon uncontrolled impact, launching sharp fragments into the air. Eye protection is mandatory.

Bone fractures

Large magnets can smash fingers in a fraction of a second. Do not put your hand between two attracting surfaces.

Dust is flammable

Dust generated during grinding of magnets is self-igniting. Do not drill into magnets without proper cooling and knowledge.

Adults only

NdFeB magnets are not toys. Accidental ingestion of several magnets may result in them pinching intestinal walls, which poses a critical condition and necessitates immediate surgery.

Medical implants

People with a pacemaker should maintain an safe separation from magnets. The magnetic field can stop the operation of the implant.

Cards and drives

Equipment safety: Strong magnets can ruin data carriers and sensitive devices (heart implants, hearing aids, timepieces).

Safe operation

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

Heat warning

Standard neodymium magnets (grade N) lose power when the temperature goes above 80°C. This process is irreversible.

Allergic reactions

It is widely known that the nickel plating (the usual finish) is a strong allergen. For allergy sufferers, refrain from direct skin contact or select coated magnets.

Threat to navigation

A powerful magnetic field interferes with the operation of magnetometers in smartphones and navigation systems. Do not bring magnets near a smartphone to prevent damaging the sensors.

Important! Learn more about hazards in the article: Magnet Safety Guide.