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MW 70x30 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010096

GTIN/EAN: 5906301810957

5.00
Load capacity 144.18 kg / 1414.37 N Magnetic Induction 403.43 mT / 4034 Gs
Diameter Ø
70 mm [±0,1 mm]
Height
30 mm [±0,1 mm]
Weight
865.9 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

product parameters »

257.86 zł net / pcs

317.17 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 parameters - MW 70x30 / N38 - cylindrical magnet

Specification / characteristics - MW 70x30 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010096
GTIN/EAN 5906301810957
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 30 mm [±0,1 mm]
Weight 865.9 g
Magnetization Direction ↑ axial
Load capacity ~ ? 144.18 kg / 1414.37 N
Magnetic Induction ~ ? 403.43 mT / 4034 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 70x30 / N38 - cylindrical magnet
properties values units
Remanence Br ? 12.2-12.6 kGs
Remanence Br ? 1220-1260 mT
Coercivity bHc ? 10.8-11.5 kOe
Coercivity bHc ? 860-915 kA/m
Intrinsic coercivity iHc ≥ 12 kOe
Intrinsic coercivity iHc ≥ 955 kA/m
Energy product BHmax ? 36-38 BH max MGOe
Energy product BHmax ? 287-303 BH max KJ/m
Maximum working 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 magnet - data

Presented information are the result of a physical calculation. Results rely on algorithms for the material Nd2Fe14B. Real-world conditions might slightly deviate from the simulation results. Treat these calculations as a reference point when designing systems.

Table 1: Static pull force (pull vs distance) - power drop
MW 70x30 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 4034 Gs
403.4 mT
 144.18 kg / 317.86 lbs
144180.0 g / 1414.4 N
 crushing
1 mm 3934 Gs
393.4 mT
 137.11 kg / 302.27 lbs
137108.9 g / 1345.0 N
 crushing
2 mm 3830 Gs
383.0 mT
 129.96 kg / 286.52 lbs
129962.6 g / 1274.9 N
 crushing
3 mm 3724 Gs
372.4 mT
 122.86 kg / 270.87 lbs
122863.7 g / 1205.3 N
 crushing
5 mm 3507 Gs
350.7 mT
 108.99 kg / 240.28 lbs
108989.8 g / 1069.2 N
 crushing
10 mm 2963 Gs
296.3 mT
 77.77 kg / 171.46 lbs
77773.1 g / 763.0 N
 crushing
15 mm 2452 Gs
245.2 mT
 53.26 kg / 117.41 lbs
53257.6 g / 522.5 N
 crushing
20 mm 2003 Gs
200.3 mT
 35.55 kg / 78.38 lbs
35554.2 g / 348.8 N
 crushing
30 mm 1321 Gs
132.1 mT
 15.45 kg / 34.06 lbs
15450.6 g / 151.6 N
 crushing
50 mm 601 Gs
60.1 mT
 3.20 kg / 7.05 lbs
3199.7 g / 31.4 N
 strong
Grip strength drops drastically with every subsequent millimeter of gap. Note that every additional insulation layer (e.g., contamination, varnish, rust) noticeably diminishes the holding power. Magnets work optimally at the point of direct contact; air break nullifies the force. Notice how flashily the load capacity drop, when the product does not adhere tightly to the metal substrate. When calculating the arrangement, avoid additional spacers.

Table 2: Slippage capacity (vertical surface)
MW 70x30 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 28.84 kg / 63.57 lbs
28836.0 g / 282.9 N
1 mm Stal (~0.2) 27.42 kg / 60.46 lbs
27422.0 g / 269.0 N
2 mm Stal (~0.2) 25.99 kg / 57.30 lbs
25992.0 g / 255.0 N
3 mm Stal (~0.2) 24.57 kg / 54.17 lbs
24572.0 g / 241.1 N
5 mm Stal (~0.2) 21.80 kg / 48.06 lbs
21798.0 g / 213.8 N
10 mm Stal (~0.2) 15.55 kg / 34.29 lbs
15554.0 g / 152.6 N
15 mm Stal (~0.2) 10.65 kg / 23.48 lbs
10652.0 g / 104.5 N
20 mm Stal (~0.2) 7.11 kg / 15.67 lbs
7110.0 g / 69.7 N
30 mm Stal (~0.2) 3.09 kg / 6.81 lbs
3090.0 g / 30.3 N
50 mm Stal (~0.2) 0.64 kg / 1.41 lbs
640.0 g / 6.3 N
This section presents the approximate shear load required to initiate the shifting of the magnet down against a vertical steel wall (assuming typical friction coefficient). This parameter depends on the distance between the magnet and the metal.

Table 3: Wall mounting (sliding) - vertical pull
MW 70x30 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
43.25 kg / 95.36 lbs
43254.0 g / 424.3 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
28.84 kg / 63.57 lbs
28836.0 g / 282.9 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
14.42 kg / 31.79 lbs
14418.0 g / 141.4 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
72.09 kg / 158.93 lbs
72090.0 g / 707.2 N
When placing a magnet on a vertical plane (e.g., a board), it will only hold only approx. 20%-30% of nominal attraction strength. Gravitational force and a weak degree of grip influence the fact that holders move down easier than they pop off the substrate. Want to create a hanger? Note that the shear force is noticeably lower than the perpendicular breakaway force. On a slippery surface, the holder will slip down under a much lighter cargo. Application of an anti-slip pad can significantly improve the result.

Table 4: Steel thickness (saturation) - sheet metal selection
MW 70x30 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
3%
 4.81 kg / 10.60 lbs
4806.0 g / 47.1 N
1 mm
8%
 12.01 kg / 26.49 lbs
12015.0 g / 117.9 N
2 mm
17%
 24.03 kg / 52.98 lbs
24030.0 g / 235.7 N
3 mm
25%
 36.05 kg / 79.47 lbs
36045.0 g / 353.6 N
5 mm
42%
 60.08 kg / 132.44 lbs
60075.0 g / 589.3 N
10 mm
83%
 120.15 kg / 264.89 lbs
120150.0 g / 1178.7 N
11 mm
92%
 132.17 kg / 291.37 lbs
132165.0 g / 1296.5 N
12 mm
100%
 144.18 kg / 317.86 lbs
144180.0 g / 1414.4 N
A thin metal plate is incapable of focus the full magnetic flux, which squanders power of the magnet. Should you attach a powerful product to a thin surface, the magnetism will penetrate right through and the pull force will drop sharply. To squeeze the maximum of this neodymium's potential, you need a suitably thick backing of metal. The saturation effect causes that on delicate walls (e.g., thin profiles), the product shows lower pull force. We advise picking the steel thickness from these parameters.

Table 5: Working in heat (stability) - resistance threshold
MW 70x30 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 144.18 kg / 317.86 lbs
144180.0 g / 1414.4 N
 OK
40 °C -2.2% 141.01 kg / 310.87 lbs
141008.0 g / 1383.3 N
 OK
60 °C -4.4% 137.84 kg / 303.88 lbs
137836.1 g / 1352.2 N
80 °C -6.6% 134.66 kg / 296.88 lbs
134664.1 g / 1321.1 N
100 °C -28.8% 102.66 kg / 226.32 lbs
102656.2 g / 1007.1 N
Classic neodymiums change their properties power above the temperature limit. Watch out for overheating – excessive heat can irreversibly destroy this product. With increasing heat, the magnet's power temporarily decreases. Avoid using this product near heat sources higher than its operating temperature limit. Exceeding the critical threshold will lead to irreversible degradation of magnetic properties.
*Important note: Temperature resistance is determined by both grade, as well as the dimension ratios. Thin magnets (low permeance coefficient) risk losing magnetic properties at lower temperatures than taller cylinders. Warning indicator in the table signals permanent field degradation for this particular item.

Table 6: Two magnets (repulsion) - field range
MW 70x30 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Strength (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 386.08 kg / 851.15 lbs
5 354 Gs
57.91 kg / 127.67 lbs
57911 g / 568.1 N
 N/A
1 mm 376.71 kg / 830.51 lbs
7 969 Gs
56.51 kg / 124.58 lbs
56507 g / 554.3 N
 339.04 kg / 747.46 lbs
~0 Gs
2 mm 367.14 kg / 809.41 lbs
7 867 Gs
55.07 kg / 121.41 lbs
55071 g / 540.2 N
 330.43 kg / 728.47 lbs
~0 Gs
3 mm 357.57 kg / 788.30 lbs
7 764 Gs
53.63 kg / 118.24 lbs
53635 g / 526.2 N
 321.81 kg / 709.47 lbs
~0 Gs
5 mm 338.48 kg / 746.21 lbs
7 554 Gs
50.77 kg / 111.93 lbs
50772 g / 498.1 N
 304.63 kg / 671.59 lbs
~0 Gs
10 mm 291.85 kg / 643.41 lbs
7 014 Gs
43.78 kg / 96.51 lbs
43777 g / 429.5 N
 262.66 kg / 579.07 lbs
~0 Gs
20 mm 208.26 kg / 459.13 lbs
5 925 Gs
31.24 kg / 68.87 lbs
31238 g / 306.4 N
 187.43 kg / 413.21 lbs
~0 Gs
50 mm 62.81 kg / 138.47 lbs
3 254 Gs
9.42 kg / 20.77 lbs
9421 g / 92.4 N
 56.53 kg / 124.62 lbs
~0 Gs
60 mm 41.37 kg / 91.21 lbs
2 641 Gs
6.21 kg / 13.68 lbs
6206 g / 60.9 N
 37.24 kg / 82.09 lbs
~0 Gs
70 mm 27.41 kg / 60.43 lbs
2 150 Gs
4.11 kg / 9.06 lbs
4112 g / 40.3 N
 24.67 kg / 54.39 lbs
~0 Gs
80 mm 18.35 kg / 40.46 lbs
1 759 Gs
2.75 kg / 6.07 lbs
2753 g / 27.0 N
 16.52 kg / 36.41 lbs
~0 Gs
90 mm 12.45 kg / 27.44 lbs
1 449 Gs
1.87 kg / 4.12 lbs
1867 g / 18.3 N
 11.20 kg / 24.70 lbs
~0 Gs
100 mm 8.57 kg / 18.89 lbs
1 202 Gs
1.29 kg / 2.83 lbs
1285 g / 12.6 N
 7.71 kg / 17.00 lbs
~0 Gs
Two magnets interact from a wider radius than a magnet and sheet setup. Such a system of two magnets creates a more powerful interaction and a further horizon of action. Designing a solid fastener? Apply two magnets instead of one magnet and a steel. Remember that when attracting two neodymiums, the collision energy is massive. The repulsion force is marginally weaker than the connection force, but still significant.
*Field value in repulsion mode is approximately ~0 Gs at the geometric center between the magnets (due to field cancellation).
* Calculations apply to shear force of a pair of identical neodymium magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Safety (HSE) (electronics) - warnings
MW 70x30 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 34.5 cm
Hearing aid 10 Gs (1.0 mT) 27.0 cm
Timepiece 20 Gs (2.0 mT) 21.0 cm
Phone / Smartphone 40 Gs (4.0 mT) 16.5 cm
Remote 50 Gs (5.0 mT) 15.0 cm
Payment card 400 Gs (40.0 mT) 6.5 cm
HDD hard drive 600 Gs (60.0 mT) 5.5 cm
A strong magnetic field is a real danger to electronic devices and pacemakers. These neodymiums generate a field that destroys function of sensitive medical devices. Be aware: the unseen radiation penetrates the body and plastic. Special caution must be exercised by people with cochlear implants and drug dispensers. Also at risk are: automatic timepieces, car keys, speakers, and screens. Do not bring the product near payment cards, HDD media, or precise measuring instruments.

Table 8: Dynamics (cracking risk) - collision effects
MW 70x30 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 17.95 km/h
(4.99 m/s)
 10.76 J
30 mm 23.51 km/h
(6.53 m/s)
 18.46 J
50 mm 24.45 km/h
(6.79 m/s)
 19.97 J
100 mm 24.72 km/h
(6.87 m/s)
 20.42 J
Magnetic elements are very brittle – a strong collision with metal can result in shattering. Watch the impact speed – a neodymium left loose becomes dangerous. Striking energy can cause material chips or injury to skin. Always hold the magnet during bringing near metal so it doesn't slam with momentum against the steel surface. A contact at a velocity of dozens of km/h almost guarantees destruction of the magnet. Wear eye protection when playing with large magnets.

Table 9: Anti-corrosion coating durability
MW 70x30 / N38

Technical parameter Value / Description
Coating type [NiCuNi] Nickel
Layer structure Nickel - Copper - Nickel
Layer thickness 10-20 µm
Salt spray test (SST) ? 24 h
Recommended environment Indoors only (dry)
The following table defines the conditions under which this product can be safely used. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Construction data (Pc)
MW 70x30 / N38

Parameter Value SI Unit / Description
Magnetic Flux 159 225 Mx 1592.3 µWb
Pc Coefficient 0.53 Low (Flat)
Flux value emitted by the magnet pole. Essential parameter for generator designers and motors. Pc value defines the working geometry.

Table 11: Physics of underwater searching
MW 70x30 / N38

Environment Effective steel pull Effect
Air (land) 144.18 kg Standard
Water (riverbed) 165.09 kg
(+20.91 kg buoyancy gain)
+14.5%
Corrosion warning: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!
In water, the magnet feels stronger thanks to Archimedes' principle. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Vertical hold

*Warning: On a vertical surface, the magnet retains merely approx. 20-30% of its perpendicular strength.

2. Efficiency vs thickness

*Thin steel (e.g. 0.5mm PC case) drastically weakens the holding force.

3. Thermal stability

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

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.53

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%

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: 010096-2026
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The presented product is an exceptionally strong cylindrical magnet, produced from durable NdFeB material, which, at dimensions of Ø70x30 mm, guarantees maximum efficiency. This specific item boasts an accuracy of ±0.1mm and industrial build quality, making it an ideal solution for the most demanding engineers and designers. As a cylindrical magnet with significant force (approx. 144.18 kg), this product is in stock from our European logistics center, ensuring lightning-fast order fulfillment. Moreover, its triple-layer Ni-Cu-Ni coating secures it against corrosion in typical operating conditions, ensuring an aesthetic appearance and durability for years.
It finds application in DIY projects, advanced robotics, and broadly understood industry, serving as a positioning or actuating element. Thanks to the high power of 1414.37 N with a weight of only 865.9 g, this cylindrical magnet is indispensable in electronics and wherever low weight is crucial.
Due to the delicate structure of the ceramic sinter, you must not use force-fitting (so-called press-fit), as this risks immediate cracking of this precision component. To ensure stability in automation, anaerobic resins 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 even stronger magnets in the same volume (Ø70x30), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our store.
The presented product is a neodymium magnet with precisely defined parameters: diameter 70 mm and height 30 mm. The key parameter here is the lifting capacity amounting to approximately 144.18 kg (force ~1414.37 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.
This cylinder is magnetized axially (along the height of 30 mm), which means that the N and S poles are located on the flat, circular surfaces. 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.

Pros and cons of rare earth magnets.

Benefits

Apart from their consistent magnetism, neodymium magnets have these key benefits:
  • They do not lose strength, even during around ten years – the reduction in strength is only ~1% (theoretically),
  • They are resistant to demagnetization induced by external disturbances,
  • A magnet with a shiny silver surface has better aesthetics,
  • Neodymium magnets ensure maximum magnetic induction on a their surface, which allows for strong attraction,
  • Due to their durability and thermal resistance, neodymium magnets can operate (depending on the form) even at high temperatures reaching 230°C or more...
  • Possibility of exact modeling as well as optimizing to defined needs,
  • Universal use in advanced technology sectors – they find application in data components, brushless drives, diagnostic systems, and industrial machines.
  • Compactness – despite small sizes they generate large force, making them ideal for precision applications

Limitations

Disadvantages of NdFeB magnets:
  • At very strong impacts they can break, therefore we recommend placing them in strong housings. A metal housing provides additional protection against damage and increases the magnet's durability.
  • Neodymium magnets lose force when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of strength (a factor is the shape and 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
  • Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material stable to moisture, in case of application outdoors
  • Limited possibility of creating threads in the magnet and complex shapes - recommended is a housing - mounting mechanism.
  • Health risk resulting from small fragments of magnets pose a threat, in case of ingestion, which gains importance in the context of child safety. Furthermore, tiny parts of these magnets can complicate diagnosis medical in case of swallowing.
  • Due to neodymium price, their price is relatively high,

Holding force characteristics

Maximum lifting capacity of the magnet – what it depends on?

Information about lifting capacity was determined for the most favorable conditions, including:
  • on a plate made of mild steel, optimally conducting the magnetic flux
  • with a cross-section no less than 10 mm
  • characterized by lack of roughness
  • without any air gap between the magnet and steel
  • during pulling in a direction perpendicular to the mounting surface
  • in neutral thermal conditions

Determinants of lifting force in real conditions

It is worth knowing that the working load may be lower depending on the following factors, in order of importance:
  • Distance (between the magnet and the plate), as even a very small clearance (e.g. 0.5 mm) leads to a decrease in force by up to 50% (this also applies to varnish, corrosion or dirt).
  • Force direction – declared lifting capacity refers to detachment vertically. When applying parallel force, the magnet exhibits much less (often approx. 20-30% of maximum force).
  • Plate thickness – too thin sheet does not accept the full field, causing part of the flux to be escaped to the other side.
  • Plate material – mild steel gives the best results. Alloy admixtures reduce magnetic properties and holding force.
  • Plate texture – smooth surfaces ensure maximum contact, which increases force. Uneven metal reduce efficiency.
  • Thermal environment – temperature increase results in weakening of induction. It is worth remembering the maximum operating temperature for a given model.

Lifting capacity testing was performed on plates with a smooth surface of suitable thickness, under perpendicular forces, whereas under attempts to slide the magnet the lifting capacity is smaller. Moreover, even a small distance between the magnet’s surface and the plate decreases the lifting capacity.

Precautions when working with NdFeB magnets
Flammability

Fire warning: Neodymium dust is highly flammable. Do not process magnets without safety gear as this risks ignition.

Do not overheat magnets

Regular neodymium magnets (grade N) lose power when the temperature goes above 80°C. Damage is permanent.

No play value

Adult use only. Small elements can be swallowed, leading to severe trauma. Keep out of reach of kids and pets.

Threat to electronics

Do not bring magnets near a purse, laptop, or screen. The magnetism can irreversibly ruin these devices and wipe information from cards.

Threat to navigation

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

Eye protection

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

Safe operation

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

Pinching danger

Mind your fingers. Two powerful magnets will join immediately with a force of several hundred kilograms, crushing anything in their path. Be careful!

Implant safety

Warning for patients: Strong magnetic fields affect medical devices. Maintain at least 30 cm distance or request help to work with the magnets.

Metal Allergy

It is widely known that the nickel plating (standard magnet coating) is a common allergen. For allergy sufferers, prevent touching magnets with bare hands or choose encased magnets.

Caution! Looking for details? Check our post: Why are neodymium magnets dangerous?