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MP 20x8x5 / N38 - ring magnet

ring magnet

Catalog no 030188

GTIN/EAN: 5906301812050

5.00
Load capacity 5.82 kg / 57.06 N Magnetic Induction 277.16 mT / 2772 Gs
Diameter
20 mm [±0,1 mm]
internal diameter Ø
8 mm [±0,1 mm]
Height
5 mm [±0,1 mm]
Weight
9.9 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

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3.09 zł net / pcs

3.80 zł with VAT (23% VAT) / pcs

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Frequently asked questions

What is the hole in a ring magnet for?
For mounting on a screw or a shaft. The bore may be cylindrical or countersunk for a screw head. The hole removes magnet volume, so a ring holds less than a disc of the same outside diameter.
What is the polarisation?
Axial as standard — poles on the flat faces of the ring. Diametrical polarisation is made to order.
What sizes are available?
Outside diameter from 5 to 62 mm from stock. To order up to 200 mm outside diameter, 180 mm bore and 40 mm height, with a lead time of 25–35 days.

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 - MP 20x8x5 / N38 - ring magnet

Specification / characteristics - MP 20x8x5 / N38 - ring magnet

properties
properties values
Cat. no. 030188
GTIN/EAN 5906301812050
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 20 mm [±0,1 mm]
internal diameter Ø 8 mm [±0,1 mm]
Height 5 mm [±0,1 mm]
Weight 9.9 g
Magnetization Direction ↑ axial
Load capacity ~ ? 5.82 kg / 57.06 N
Magnetic Induction ~ ? 277.16 mT / 2772 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MP 20x8x5 / N38 - ring 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 simulation of the magnet - data

The following values are the direct effect of a engineering analysis. Results were calculated on algorithms for the material Nd2Fe14B. Actual conditions might slightly deviate from the simulation results. Treat these calculations as a reference point for designers.

Table 1: Static pull force (pull vs distance) - power drop
MP 20x8x5 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 5917 Gs
591.7 mT
 5.82 kg / 12.83 lbs
5820.0 g / 57.1 N
 warning
1 mm 5321 Gs
532.1 mT
 4.71 kg / 10.38 lbs
4707.4 g / 46.2 N
 warning
2 mm 4736 Gs
473.6 mT
 3.73 kg / 8.22 lbs
3729.5 g / 36.6 N
 warning
3 mm 4184 Gs
418.4 mT
 2.91 kg / 6.42 lbs
2910.0 g / 28.5 N
 warning
5 mm 3216 Gs
321.6 mT
 1.72 kg / 3.79 lbs
1719.3 g / 16.9 N
 low risk
10 mm 1650 Gs
165.0 mT
 0.45 kg / 1.00 lbs
452.4 g / 4.4 N
 low risk
15 mm 907 Gs
90.7 mT
 0.14 kg / 0.30 lbs
136.8 g / 1.3 N
 low risk
20 mm 544 Gs
54.4 mT
 0.05 kg / 0.11 lbs
49.2 g / 0.5 N
 low risk
30 mm 240 Gs
24.0 mT
 0.01 kg / 0.02 lbs
9.6 g / 0.1 N
 low risk
50 mm 75 Gs
7.5 mT
 0.00 kg / 0.00 lbs
0.9 g / 0.0 N
 low risk
Pulling power weakens significantly with every mm of gap. Note that even a microscopic distance (e.g., dirt, varnish, dust) strongly weakens the grip. Magnetic products work most effectively during direct contact; air break kills the power. Observe how rapidly the pull force drop, when the magnet does not touch directly to the steel surface. When planning the arrangement, eliminate redundant distances.

Table 2: Slippage hold (wall)
MP 20x8x5 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 1.16 kg / 2.57 lbs
1164.0 g / 11.4 N
1 mm Stal (~0.2) 0.94 kg / 2.08 lbs
942.0 g / 9.2 N
2 mm Stal (~0.2) 0.75 kg / 1.64 lbs
746.0 g / 7.3 N
3 mm Stal (~0.2) 0.58 kg / 1.28 lbs
582.0 g / 5.7 N
5 mm Stal (~0.2) 0.34 kg / 0.76 lbs
344.0 g / 3.4 N
10 mm Stal (~0.2) 0.09 kg / 0.20 lbs
90.0 g / 0.9 N
15 mm Stal (~0.2) 0.03 kg / 0.06 lbs
28.0 g / 0.3 N
20 mm Stal (~0.2) 0.01 kg / 0.02 lbs
10.0 g / 0.1 N
30 mm Stal (~0.2) 0.00 kg / 0.00 lbs
2.0 g / 0.0 N
50 mm Stal (~0.2) 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
The table below shows the estimated force needed to initiate the downward movement of the magnet downwards along a upright metal surface (assuming standard friction). The holding force depends on the distance between the magnet and the surface.

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MP 20x8x5 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
1.75 kg / 3.85 lbs
1746.0 g / 17.1 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
1.16 kg / 2.57 lbs
1164.0 g / 11.4 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.58 kg / 1.28 lbs
582.0 g / 5.7 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
2.91 kg / 6.42 lbs
2910.0 g / 28.5 N
When mounting a holder on a upright wall (e.g., a car body), it will only hold only about 20%-30% of nominal attraction strength. Gravity and a low friction coefficient cause that products slip faster than they pull off. Designing a wall mount? Note that the shear force is significantly lower than the perpendicular breakaway force. On a painted metal, the magnet will slide down under a much lighter load. Using a rubber coating can effectively improve the result.

Table 4: Material efficiency (saturation) - sheet metal selection
MP 20x8x5 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.58 kg / 1.28 lbs
582.0 g / 5.7 N
1 mm
25%
 1.46 kg / 3.21 lbs
1455.0 g / 14.3 N
2 mm
50%
 2.91 kg / 6.42 lbs
2910.0 g / 28.5 N
3 mm
75%
 4.37 kg / 9.62 lbs
4365.0 g / 42.8 N
5 mm
100%
 5.82 kg / 12.83 lbs
5820.0 g / 57.1 N
10 mm
100%
 5.82 kg / 12.83 lbs
5820.0 g / 57.1 N
11 mm
100%
 5.82 kg / 12.83 lbs
5820.0 g / 57.1 N
12 mm
100%
 5.82 kg / 12.83 lbs
5820.0 g / 57.1 N
A thin metal plate is not enough to take in the entire magnetic field, which wastes potential of the magnet. If you install a neodymium to a too thin substrate, the field will penetrate right through and the pull force will drop sharply. To squeeze 100% of this neodymium's power, you need a suitably thick piece of steel. The material oversaturation means that on sheet metal structures (e.g., car bodies), the holder shows lower pull force. We recommend selecting the steel thickness from these parameters.

Table 5: Thermal stability (stability) - resistance threshold
MP 20x8x5 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 5.82 kg / 12.83 lbs
5820.0 g / 57.1 N
 OK
40 °C -2.2% 5.69 kg / 12.55 lbs
5692.0 g / 55.8 N
 OK
60 °C -4.4% 5.56 kg / 12.27 lbs
5563.9 g / 54.6 N
 OK
80 °C -6.6% 5.44 kg / 11.98 lbs
5435.9 g / 53.3 N
100 °C -28.8% 4.14 kg / 9.14 lbs
4143.8 g / 40.7 N
Classic neodymiums change their properties strength after exceeding the maximum temperature. Avoid high temperatures – heat can irreversibly damage this magnet. As the temperature rises, the magnet's capacity temporarily lowers. Do not use this magnet in hot environments higher than its safe range. Too high temperature will result in permanent loss of magnetism.
*Technical advisory: Thermal stability is determined by both grade, but also on the magnet's shape. Thin magnets (pancake types) may lose charge permanently at lower temperatures compared to rod magnets. The danger warning in the table points to permanent field degradation for this specific geometry.

Table 6: Two magnets (attraction) - field range
MP 20x8x5 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Strength (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 54.03 kg / 119.11 lbs
6 121 Gs
8.10 kg / 17.87 lbs
8104 g / 79.5 N
 N/A
1 mm 48.76 kg / 107.50 lbs
11 242 Gs
7.31 kg / 16.13 lbs
7314 g / 71.8 N
 43.89 kg / 96.75 lbs
~0 Gs
2 mm 43.70 kg / 96.34 lbs
10 642 Gs
6.55 kg / 14.45 lbs
6555 g / 64.3 N
 39.33 kg / 86.71 lbs
~0 Gs
3 mm 38.98 kg / 85.94 lbs
10 051 Gs
5.85 kg / 12.89 lbs
5847 g / 57.4 N
 35.08 kg / 77.34 lbs
~0 Gs
5 mm 30.63 kg / 67.54 lbs
8 910 Gs
4.60 kg / 10.13 lbs
4595 g / 45.1 N
 27.57 kg / 60.78 lbs
~0 Gs
10 mm 15.96 kg / 35.19 lbs
6 432 Gs
2.39 kg / 5.28 lbs
2394 g / 23.5 N
 14.36 kg / 31.67 lbs
~0 Gs
20 mm 4.20 kg / 9.26 lbs
3 299 Gs
0.63 kg / 1.39 lbs
630 g / 6.2 N
 3.78 kg / 8.33 lbs
~0 Gs
50 mm 0.19 kg / 0.42 lbs
702 Gs
0.03 kg / 0.06 lbs
29 g / 0.3 N
 0.17 kg / 0.38 lbs
~0 Gs
60 mm 0.09 kg / 0.20 lbs
480 Gs
0.01 kg / 0.03 lbs
13 g / 0.1 N
 0.08 kg / 0.18 lbs
~0 Gs
70 mm 0.05 kg / 0.10 lbs
342 Gs
0.01 kg / 0.01 lbs
7 g / 0.1 N
 0.04 kg / 0.09 lbs
~0 Gs
80 mm 0.02 kg / 0.05 lbs
253 Gs
0.00 kg / 0.01 lbs
4 g / 0.0 N
 0.02 kg / 0.05 lbs
~0 Gs
90 mm 0.01 kg / 0.03 lbs
193 Gs
0.00 kg / 0.00 lbs
2 g / 0.0 N
 0.01 kg / 0.03 lbs
~0 Gs
100 mm 0.01 kg / 0.02 lbs
150 Gs
0.00 kg / 0.00 lbs
1 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
Two magnets interact from a wider radius than a neodymium and metal setup. The setup of magnet-to-magnet produces a massive flux and a wider radius of action. Designing a solid fastener? Utilize two neodymiums instead of a neodymium and a steel. Be careful that when connecting a pair of magnets, the collision energy is massive. The levitation is slightly lower than the connection force, but still large.
*Flux density for N-N configuration is approximately ~0 Gs in the exact middle of the gap (caused by magnetic field nullification).
Attention: Results apply to friction force of dual same magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Safety (HSE) (electronics) - warnings
MP 20x8x5 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 14.5 cm
Hearing aid 10 Gs (1.0 mT) 11.5 cm
Mechanical watch 20 Gs (2.0 mT) 9.0 cm
Phone / Smartphone 40 Gs (4.0 mT) 6.5 cm
Car key 50 Gs (5.0 mT) 6.0 cm
Payment card 400 Gs (40.0 mT) 2.5 cm
HDD hard drive 600 Gs (60.0 mT) 2.0 cm
A strong magnetic field poses a large risk to electronics and medical implants. These magnets produce a flux that destroys function of sensitive medical devices. Remember: the invisible magnetic field penetrates the body and glass. Exceptional care must be exercised by people with hearing aids and drug dispensers. Influence will be felt by: mechanical watches, remotes, speakers, and displays. Do not place the magnet near cards, HDD media, or sensitive navigation tools.

Table 8: Dynamics (cracking risk) - collision effects
MP 20x8x5 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 23.79 km/h
(6.61 m/s)
 0.22 J
30 mm 24.82 km/h
(6.89 m/s)
 0.24 J
50 mm 24.86 km/h
(6.90 m/s)
 0.24 J
100 mm 24.86 km/h
(6.91 m/s)
 0.24 J
Neodymium magnets are delicate – a collision with steel risks their cracking. Watch the impact speed – a magnet released freely speeds with massive force. Kinetic force can cause material chips or dangerous crushing to skin. Always hold the magnet during installation so it doesn't hit with great force against the steel surface. A contact at a velocity of dozens of km/h ends with a crack of the magnet. Wear eye protection when working with powerful specimens.

Table 9: Corrosion resistance
MP 20x8x5 / 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. Note the thickness of the protective layer.

Table 10: Electrical data (Pc)
MP 20x8x5 / N38

Parameter Value SI Unit / Description
Magnetic Flux 16 116 Mx 161.2 µWb
Pc Coefficient 1.13 High (Stable)
Flux value emitted by the magnet pole. Key data when building generators as well as sensors. Pc value determines the working geometry.

Table 11: Hydrostatics and buoyancy
MP 20x8x5 / N38

Environment Effective steel pull Effect
Air (land) 5.82 kg Standard
Water (riverbed) 6.66 kg
(+0.84 kg buoyancy gain)
+14.5%
Warning: 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. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Sliding resistance

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

2. Efficiency vs thickness

*Thin steel (e.g. 0.5mm PC case) drastically reduces 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) = 1.13

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.

Engineering data and GPSR

Material specification

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%

Sustainability

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: 030188-2026
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The ring magnet with a hole MP 20x8x5 / N38 is created for permanent mounting, where glue might fail or be insufficient. Thanks to the hole (often for a screw), this model enables easy screwing to wood, wall, plastic, or metal. It is also often used in advertising for fixing signs and in workshops for organizing tools.
This material behaves more like porcelain than steel, so it doesn't forgive mistakes during mounting. One turn too many can destroy the magnet, so do it slowly. The flat screw head should evenly press the magnet. Remember: cracking during assembly results from material properties, not a product defect.
These magnets are coated with standard Ni-Cu-Ni plating, which protects them in indoor conditions, but does not ensure full waterproofing. In the place of the mounting hole, the coating is thinner and can be damaged when tightening the screw, which will become a corrosion focus. This product is dedicated for indoor use. For outdoor applications, we recommend choosing rubberized holders or additional protection with varnish.
The inner hole diameter determines the maximum size of the mounting element. For magnets with a straight hole, a conical head can act like a wedge and burst the magnet. Always check that the screw head is not larger than the outer diameter of the magnet (20 mm), so it doesn't protrude beyond the outline.
This model is characterized by dimensions Ø20x5 mm and a weight of 9.9 g. The pulling force of this model is an impressive 5.82 kg, which translates to 57.06 N in newtons. The product has a [NiCuNi] coating and is made of NdFeB material. Inner hole dimension: 8 mm.
The poles are located on the planes with holes, not on the sides of the ring. If you want two such magnets screwed with cones facing each other (faces) to attract, you must connect them with opposite poles (N to S). We do not offer paired sets with marked poles in this category, but they are easy to match manually.

Advantages and disadvantages of Nd2Fe14B magnets.

Benefits

Apart from their superior magnetic energy, neodymium magnets have these key benefits:
  • Their strength is maintained, and after around ten years it drops only by ~1% (theoretically),
  • Magnets effectively protect themselves against loss of magnetization caused by foreign field sources,
  • The use of an metallic finish of noble metals (nickel, gold, silver) causes the element to present itself better,
  • They show high magnetic induction at the operating surface, which improves attraction properties,
  • Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
  • Thanks to modularity in constructing and the capacity to customize to client solutions,
  • Key role in modern industrial fields – they are utilized in computer drives, electromotive mechanisms, advanced medical instruments, and industrial machines.
  • Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in tiny dimensions, which enables their usage in miniature devices

Cons

Disadvantages of NdFeB magnets:
  • Brittleness is one of their disadvantages. Upon intense impact they can break. We advise keeping them in a strong case, which not only protects them against impacts but also increases their durability
  • NdFeB magnets lose strength 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
  • 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.
  • We suggest a housing - magnetic holder, due to difficulties in creating nuts inside the magnet and complicated forms.
  • Health risk resulting from small fragments of magnets are risky, in case of ingestion, which is particularly important in the aspect of protecting the youngest. It is also worth noting that small components of these devices are able to complicate diagnosis medical when they are in the body.
  • Due to neodymium price, their price is higher than average,

Lifting parameters

Maximum magnetic pulling force – what it depends on?

The declared magnet strength represents the peak performance, measured under ideal test conditions, meaning:
  • using a plate made of high-permeability steel, serving as a magnetic yoke
  • possessing a massiveness of min. 10 mm to ensure full flux closure
  • with a plane perfectly flat
  • without the slightest insulating layer between the magnet and steel
  • for force applied at a right angle (pull-off, not shear)
  • at temperature room level

Key elements affecting lifting force

During everyday use, the actual lifting capacity is determined by many variables, ranked from most significant:
  • Gap (betwixt the magnet and the metal), as even a very small clearance (e.g. 0.5 mm) can cause a drastic drop in lifting capacity by up to 50% (this also applies to paint, corrosion or debris).
  • Load vector – maximum parameter is available only during perpendicular pulling. The force required to slide of the magnet along the plate is standardly several times smaller (approx. 1/5 of the lifting capacity).
  • Metal thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field penetrates through instead of converting into lifting capacity.
  • Steel type – mild steel attracts best. Alloy steels decrease magnetic properties and lifting capacity.
  • Plate texture – smooth surfaces guarantee perfect abutment, which increases field saturation. Uneven metal weaken the grip.
  • Operating temperature – NdFeB sinters have a sensitivity to temperature. When it is hot they are weaker, and at low temperatures gain strength (up to a certain limit).

Lifting capacity was assessed by applying a steel plate with a smooth surface of suitable thickness (min. 20 mm), under perpendicular pulling force, in contrast under attempts to slide the magnet the holding force is lower. Moreover, even a minimal clearance between the magnet and the plate decreases the holding force.

Safe handling of NdFeB magnets
Metal Allergy

Certain individuals experience a sensitization to nickel, which is the standard coating for neodymium magnets. Frequent touching may cause a rash. It is best to use safety gloves.

Bone fractures

Protect your hands. Two powerful magnets will snap together instantly with a force of massive weight, crushing anything in their path. Exercise extreme caution!

Choking Hazard

NdFeB magnets are not toys. Swallowing several magnets can lead to them attracting across intestines, which constitutes a critical condition and requires immediate surgery.

Handling rules

Handle with care. Rare earth magnets attract from a long distance and connect with huge force, often quicker than you can move away.

Permanent damage

Avoid heat. Neodymium magnets are susceptible to heat. If you require resistance above 80°C, inquire about special high-temperature series (H, SH, UH).

Machining danger

Fire warning: Rare earth powder is highly flammable. Do not process magnets in home conditions as this risks ignition.

Eye protection

Despite metallic appearance, neodymium is delicate and cannot withstand shocks. Do not hit, as the magnet may shatter into hazardous fragments.

Magnetic interference

Be aware: neodymium magnets generate a field that confuses precision electronics. Keep a safe distance from your mobile, device, and GPS.

Data carriers

Intense magnetic fields can destroy records on credit cards, hard drives, and storage devices. Stay away of min. 10 cm.

ICD Warning

Patients with a heart stimulator must keep an large gap from magnets. The magnetism can interfere with the functioning of the implant.

Important! Want to know more? Read our article: Are neodymium magnets dangerous?