← previous
next →
Product available Ships tomorrow

MP 14x8/4x3 / N38 - ring magnet

ring magnet

Catalog no 030181

GTIN/EAN: 5906301811985

5.00

Diameter

14 mm [±0,1 mm]

internal diameter Ø

8/4 mm [±0,1 mm]

Height

3 mm [±0,1 mm]

Weight

3.18 g

Magnetization Direction

↑ axial

Load capacity

2.53 kg / 24.85 N

Magnetic Induction

244.11 mT / 2441 Gs

Coating

[NiCuNi] Nickel

product parameters »

2.47 ZŁ with VAT / pcs + price for transport

2.01 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?
price from 1 pcs
2.01 ZŁ
2.47 ZŁ
price from 300 pcs
1.889 ZŁ
2.32 ZŁ
price from 1250 pcs
1.769 ZŁ
2.18 ZŁ
Carbon Footprint – environmental impact GPSR Regulation – product safety
Not sure about your choice?

Contact us by phone +48 888 99 98 98 alternatively drop us a message through our online form the contact page.
Parameters and form of magnetic components can be tested using our power calculator.

Same-day shipping for orders placed before 14:00.

Detailed specification - MP 14x8/4x3 / N38 - ring magnet

Specification / characteristics - MP 14x8/4x3 / N38 - ring magnet

properties
properties values
Cat. no. 030181
GTIN/EAN 5906301811985
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 14 mm [±0,1 mm]
internal diameter Ø 8/4 mm [±0,1 mm]
Height 3 mm [±0,1 mm]
Weight 3.18 g
Magnetization Direction ↑ axial
Load capacity ~ ? 2.53 kg / 24.85 N
Magnetic Induction ~ ? 244.11 mT / 2441 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MP 14x8/4x3 / 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 312 - 380 °C
Curie Temperature TF 593 - 716 °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 simulation of the product - technical parameters

Presented data represent the result of a engineering calculation. Values were calculated on algorithms for the class Nd2Fe14B. Real-world performance might slightly deviate from the simulation results. Treat these calculations as a preliminary roadmap during assembly planning.

Table 1: Static force (force vs gap) - characteristics
MP 14x8/4x3 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 2121 Gs
212.1 mT
 2.53 kg / 5.58 pounds
2530.0 g / 24.8 N
 medium risk
1 mm 1927 Gs
192.7 mT
 2.09 kg / 4.61 pounds
2090.1 g / 20.5 N
 medium risk
2 mm 1676 Gs
167.6 mT
 1.58 kg / 3.48 pounds
1579.6 g / 15.5 N
 safe
3 mm 1410 Gs
141.0 mT
 1.12 kg / 2.46 pounds
1117.9 g / 11.0 N
 safe
5 mm 943 Gs
94.3 mT
 0.50 kg / 1.10 pounds
500.1 g / 4.9 N
 safe
10 mm 335 Gs
33.5 mT
 0.06 kg / 0.14 pounds
63.3 g / 0.6 N
 safe
15 mm 140 Gs
14.0 mT
 0.01 kg / 0.02 pounds
11.1 g / 0.1 N
 safe
20 mm 69 Gs
6.9 mT
 0.00 kg / 0.01 pounds
2.7 g / 0.0 N
 safe
30 mm 24 Gs
2.4 mT
 0.00 kg / 0.00 pounds
0.3 g / 0.0 N
 safe
50 mm 6 Gs
0.6 mT
 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
 safe
Pulling power decreases drastically per each millimeter of gap. Remember that even a very thin break (e.g., contamination, paint, dust) significantly diminishes the holding power. Neodymiums hold most effectively during direct contact; distance kills the power. See how rapidly the load capacity plummet, when the product does not adhere tightly to the steel surface. When calculating the assembly, eliminate additional spacers.

Table 2: Vertical force (vertical surface)
MP 14x8/4x3 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.51 kg / 1.12 pounds
506.0 g / 5.0 N
1 mm Stal (~0.2) 0.42 kg / 0.92 pounds
418.0 g / 4.1 N
2 mm Stal (~0.2) 0.32 kg / 0.70 pounds
316.0 g / 3.1 N
3 mm Stal (~0.2) 0.22 kg / 0.49 pounds
224.0 g / 2.2 N
5 mm Stal (~0.2) 0.10 kg / 0.22 pounds
100.0 g / 1.0 N
10 mm Stal (~0.2) 0.01 kg / 0.03 pounds
12.0 g / 0.1 N
15 mm Stal (~0.2) 0.00 kg / 0.00 pounds
2.0 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
This section defines the estimated holding capacity required to start the sliding of the magnet downwards on a vertical steel wall (considering standard friction coefficient). This parameter is a function of the gap size between the magnet and the metal.

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MP 14x8/4x3 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.76 kg / 1.67 pounds
759.0 g / 7.4 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.51 kg / 1.12 pounds
506.0 g / 5.0 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.25 kg / 0.56 pounds
253.0 g / 2.5 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
1.27 kg / 2.79 pounds
1265.0 g / 12.4 N
When mounting a holder on a upright surface (e.g., a fridge), it you can count on only about 20%-30% of its maximum pull force. Gravity and a low friction coefficient mean that products slip faster than they pull off. Designing a vertical fastening? Remember that the sliding force is significantly lower than the maximum static pull force. On a smooth steel, the element will slip down under a significantly smaller cargo. Using a rubber layer can significantly increase the grip.

Table 4: Steel thickness (substrate influence) - sheet metal selection
MP 14x8/4x3 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.25 kg / 0.56 pounds
253.0 g / 2.5 N
1 mm
25%
 0.63 kg / 1.39 pounds
632.5 g / 6.2 N
2 mm
50%
 1.27 kg / 2.79 pounds
1265.0 g / 12.4 N
3 mm
75%
 1.90 kg / 4.18 pounds
1897.5 g / 18.6 N
5 mm
100%
 2.53 kg / 5.58 pounds
2530.0 g / 24.8 N
10 mm
100%
 2.53 kg / 5.58 pounds
2530.0 g / 24.8 N
11 mm
100%
 2.53 kg / 5.58 pounds
2530.0 g / 24.8 N
12 mm
100%
 2.53 kg / 5.58 pounds
2530.0 g / 24.8 N
A thin metal plate cannot focus the entire magnetic field, which squanders power of the magnet. Should you attach a powerful product to a weak sheet, the field will pass right through and the holding will be smaller. To achieve 100% of this magnet's potential, you require a sufficiently solid element of metal. The saturation phenomenon means that on thin elements (e.g., appliance housings), the product shows lower pull force. We recommend selecting the steel dimension from these parameters.

Table 5: Thermal resistance (material behavior) - thermal limit
MP 14x8/4x3 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 2.53 kg / 5.58 pounds
2530.0 g / 24.8 N
 OK
40 °C -2.2% 2.47 kg / 5.45 pounds
2474.3 g / 24.3 N
 OK
60 °C -4.4% 2.42 kg / 5.33 pounds
2418.7 g / 23.7 N
80 °C -6.6% 2.36 kg / 5.21 pounds
2363.0 g / 23.2 N
100 °C -28.8% 1.80 kg / 3.97 pounds
1801.4 g / 17.7 N
Standard neodymium magnets lose power above the temperature limit. Avoid high temperatures – excessive heat can permanently destroy this magnet. With increasing heat, the magnet's capacity momentarily lowers. Refrain from using this product close to ovens exceeding its operating temperature limit. Ignoring the limit will cause destruction of magnetic properties.
*Technical advisory: Heat tolerance is determined by both grade, as well as the dimension ratios. Thin magnets (low Pc) risk losing magnetic properties under lower heat stress than taller cylinders. The danger warning in the table indicates a risk of irreversible loss for this particular item.

Table 6: Two magnets (repulsion) - field range
MP 14x8/4x3 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Lateral Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 3.33 kg / 7.34 pounds
3 647 Gs
0.50 kg / 1.10 pounds
500 g / 4.9 N
 N/A
1 mm 3.07 kg / 6.76 pounds
4 070 Gs
0.46 kg / 1.01 pounds
460 g / 4.5 N
 2.76 kg / 6.09 pounds
~0 Gs
2 mm 2.75 kg / 6.07 pounds
3 855 Gs
0.41 kg / 0.91 pounds
413 g / 4.0 N
 2.48 kg / 5.46 pounds
~0 Gs
3 mm 2.42 kg / 5.33 pounds
3 612 Gs
0.36 kg / 0.80 pounds
362 g / 3.6 N
 2.17 kg / 4.79 pounds
~0 Gs
5 mm 1.76 kg / 3.88 pounds
3 084 Gs
0.26 kg / 0.58 pounds
264 g / 2.6 N
 1.59 kg / 3.50 pounds
~0 Gs
10 mm 0.66 kg / 1.45 pounds
1 886 Gs
0.10 kg / 0.22 pounds
99 g / 1.0 N
 0.59 kg / 1.31 pounds
~0 Gs
20 mm 0.08 kg / 0.18 pounds
671 Gs
0.01 kg / 0.03 pounds
13 g / 0.1 N
 0.08 kg / 0.17 pounds
~0 Gs
50 mm 0.00 kg / 0.00 pounds
77 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
47 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
31 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
21 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
15 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
11 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 neodymium and metal combination. The connection of magnet-to-magnet generates a stronger field and a further horizon of performance. Designing a strong closure? Apply two magnets instead of one magnet and a striker plate. Remember that when bringing together two magnets, the collision energy is massive. The levitation is marginally weaker than the attraction, but still large.
*Field value in repulsion mode reaches ~0 Gs in the exact middle of the gap (resulting from vector opposition).
Note: Estimates apply to shear force of a pair of same magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Protective zones (electronics) - precautionary measures
MP 14x8/4x3 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 5.5 cm
Hearing aid 10 Gs (1.0 mT) 4.5 cm
Mechanical watch 20 Gs (2.0 mT) 3.5 cm
Phone / Smartphone 40 Gs (4.0 mT) 2.5 cm
Car key 50 Gs (5.0 mT) 2.5 cm
Payment card 400 Gs (40.0 mT) 1.0 cm
HDD hard drive 600 Gs (60.0 mT) 1.0 cm
Powerful magnet radiation poses a large risk to electronics and pacemakers. These magnets generate a flux that destroys function of sensitive medical devices. Notice: the invisible magnetic field passes through tissues and plastic. Increased vigilance must be taken by people with hearing aids and insulin pumps. Influence will be felt by: mechanical watches, remotes, membranes, and screens. Do not bring the product near payment cards, hard drives, or precise measuring instruments.

Table 8: Impact energy (kinetic energy) - warning
MP 14x8/4x3 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 28.89 km/h
(8.02 m/s)
 0.10 J
30 mm 49.27 km/h
(13.69 m/s)
 0.30 J
50 mm 63.61 km/h
(17.67 m/s)
 0.50 J
100 mm 89.96 km/h
(24.99 m/s)
 0.99 J
Magnetic elements are prone to chipping – a violent impact against metal causes immediate chipping. Watch the impact speed – a neodymium left loose speeds with massive force. Kinetic force can destroy the magnet or dangerous crushing to skin. Be sure to control the product during bringing near metal so it doesn't hit violently against the steel surface. A contact at a velocity of dozens of km/h ends with a crack of the neodymium. Wear eye protection when playing with large magnets.

Table 9: Surface protection spec
MP 14x8/4x3 / 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. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Construction data (Flux)
MP 14x8/4x3 / N38

Parameter Value SI Unit / Description
Magnetic Flux 3 101 Mx 31.0 µWb
Pc Coefficient 0.28 Low (Flat)
Flux value passing through the pole surface. Key data in coil applications and motors. The Pc coefficient determines the working geometry.

Table 11: Underwater work (magnet fishing)
MP 14x8/4x3 / N38

Environment Effective steel pull Effect
Air (land) 2.53 kg Standard
Water (riverbed) 2.90 kg
(+0.37 kg buoyancy gain)
+14.5%
Rust risk: Remember to wipe the magnet thoroughly after removing it from water and apply a protective layer (e.g., oil) to avoid corrosion.
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

*Caution: On a vertical surface, the magnet retains just ~20% of its perpendicular strength.

2. Plate thickness effect

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

3. Power loss vs temp

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

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.28

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: 030181-2026
Quick Unit Converter
Pulling force
Field Strength
Simply populate one field, to let the calculator calculate the rest automatically.

Other deals

MPL 10x7x3 / N38 - lamellar magnet
Product available Ships tomorrow

MPL 10x7x3 / N38 - lamellar magnet

0.849 ZŁ brutto / pcs
MW 70x20 / N38 - cylindrical magnet
Product available Ships tomorrow

MW 70x20 / N38 - cylindrical magnet

239.85 ZŁ brutto / pcs
SM 25x125 [2xM8] / N52 - magnetic separator
Product available Ships tomorrow

SM 25x125 [2xM8] / N52 - magnetic separator

418.20 ZŁ brutto / pcs
BM 850x180x70 [4x M8] - magnetic beam
Product available Ships tomorrow

BM 850x180x70 [4x M8] - magnetic beam

7729.93 ZŁ brutto / pcs
The ring magnet with a hole MP 14x8/4x3 / N38 is created for mechanical fastening, where glue might fail or be insufficient. Thanks to the hole (often for a screw), this model enables quick installation to wood, wall, plastic, or metal. This product with a force of 2.53 kg works great as a cabinet closure, speaker holder, or mounting element in devices.
This is a crucial issue when working with model MP 14x8/4x3 / N38. Neodymium magnets are sintered ceramics, which means they are very brittle and inelastic. When tightening the screw, you must maintain great sensitivity. We recommend tightening manually with a screwdriver, not an impact driver, because too much pressure will cause the ring to crack. The flat screw head should evenly press the magnet. Remember: cracking during assembly results from material properties, not a product defect.
Moisture can penetrate micro-cracks in the coating and cause oxidation of the magnet. 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. If you must use it outside, paint it with anti-corrosion paint after mounting.
The inner hole diameter determines the maximum size of the mounting element. If the magnet does not have a chamfer (cone), we recommend using a screw with a flat or cylindrical head, or possibly using a washer. Aesthetic mounting requires selecting the appropriate head size.
This model is characterized by dimensions Ø14x3 mm and a weight of 3.18 g. The pulling force of this model is an impressive 2.53 kg, which translates to 24.85 N in newtons. The mounting hole diameter is precisely 8/4 mm.
These magnets are magnetized axially (through the thickness), which means one flat side is the N pole and the other is S. In the case of connecting two rings, make sure one is turned the right way. We do not offer paired sets with marked poles in this category, but they are easy to match manually.

Strengths as well as weaknesses of rare earth magnets.

Benefits

Besides their durability, neodymium magnets are valued for these benefits:
  • They virtually do not lose strength, because even after 10 years the performance loss is only ~1% (according to literature),
  • They show high resistance to demagnetization induced by external magnetic fields,
  • A magnet with a smooth gold surface looks better,
  • Neodymium magnets deliver maximum magnetic induction on a small surface, which ensures high operational effectiveness,
  • Thanks to resistance to high temperature, they can operate (depending on the shape) even at temperatures up to 230°C and higher...
  • Thanks to the potential of flexible forming and adaptation to individualized requirements, NdFeB magnets can be manufactured in a wide range of geometric configurations, which amplifies use scope,
  • Key role in future technologies – they are utilized in computer drives, electromotive mechanisms, medical devices, also other advanced devices.
  • Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Weaknesses

Disadvantages of NdFeB magnets:
  • Brittleness is one of their disadvantages. Upon strong impact they can break. We recommend keeping them in a steel housing, which not only protects them against impacts but also increases their durability
  • When exposed to high temperature, neodymium magnets suffer a drop in strength. Often, when the temperature exceeds 80°C, their power decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
  • When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which prevent oxidation as well as corrosion.
  • Limited possibility of making threads in the magnet and complicated shapes - recommended is a housing - mounting mechanism.
  • Possible danger to health – tiny shards of magnets are risky, when accidentally swallowed, which becomes key in the context of child health protection. It is also worth noting that small elements of these products are able to complicate diagnosis medical in case of swallowing.
  • High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which can limit application in large quantities

Pull force analysis

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

Information about lifting capacity is the result of a measurement for optimal configuration, including:
  • using a sheet made of mild steel, serving as a circuit closing element
  • possessing a thickness of minimum 10 mm to ensure full flux closure
  • characterized by even structure
  • with direct contact (without coatings)
  • under perpendicular force direction (90-degree angle)
  • in temp. approx. 20°C

Lifting capacity in practice – influencing factors

In practice, the actual lifting capacity depends on a number of factors, ranked from most significant:
  • Clearance – existence of foreign body (rust, dirt, air) acts as an insulator, which reduces power steeply (even by 50% at 0.5 mm).
  • Pull-off angle – remember that the magnet holds strongest perpendicularly. Under shear forces, the holding force drops significantly, often to levels of 20-30% of the nominal value.
  • Metal thickness – thin material does not allow full use of the magnet. Part of the magnetic field penetrates through instead of converting into lifting capacity.
  • Chemical composition of the base – low-carbon steel gives the best results. Alloy steels decrease magnetic properties and holding force.
  • Surface condition – ground elements ensure maximum contact, which increases field saturation. Rough surfaces weaken the grip.
  • Operating temperature – NdFeB sinters have a sensitivity to temperature. When it is hot they are weaker, and in frost gain strength (up to a certain limit).

Lifting capacity testing was carried out on a smooth plate of optimal thickness, under a perpendicular pulling force, whereas under parallel forces the load capacity is reduced by as much as 5 times. In addition, even a minimal clearance between the magnet’s surface and the plate decreases the load capacity.

Precautions when working with NdFeB magnets
Dust is flammable

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

This is not a toy

Always keep magnets away from children. Ingestion danger is high, and the effects of magnets connecting inside the body are fatal.

ICD Warning

Patients with a heart stimulator must keep an absolute distance from magnets. The magnetic field can disrupt the operation of the life-saving device.

Compass and GPS

A strong magnetic field negatively affects the operation of magnetometers in phones and navigation systems. Keep magnets close to a device to avoid breaking the sensors.

Hand protection

Large magnets can crush fingers instantly. Under no circumstances place your hand betwixt two strong magnets.

Material brittleness

Despite the nickel coating, the material is brittle and cannot withstand shocks. Avoid impacts, as the magnet may shatter into hazardous fragments.

Safe operation

Before use, read the rules. Uncontrolled attraction can break the magnet or hurt your hand. Think ahead.

Threat to electronics

Equipment safety: Neodymium magnets can damage data carriers and delicate electronics (heart implants, medical aids, timepieces).

Warning for allergy sufferers

It is widely known that nickel (standard magnet coating) is a common allergen. If you have an allergy, avoid direct skin contact or opt for encased magnets.

Heat sensitivity

Monitor thermal conditions. Heating the magnet to high heat will ruin its magnetic structure and strength.

Warning! Details about risks in the article: Magnet Safety Guide.