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MW 15x8 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010032

GTIN/EAN: 5906301810315

5.00
Load capacity 7.37 kg / 72.28 N Magnetic Induction 451.96 mT / 4520 Gs
Diameter Ø
15 mm [±0,1 mm]
Height
8 mm [±0,1 mm]
Weight
10.6 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

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4.92 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.

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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 specification of the product - MW 15x8 / N38 - cylindrical magnet

Specification / characteristics - MW 15x8 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010032
GTIN/EAN 5906301810315
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 15 mm [±0,1 mm]
Height 8 mm [±0,1 mm]
Weight 10.6 g
Magnetization Direction ↑ axial
Load capacity ~ ? 7.37 kg / 72.28 N
Magnetic Induction ~ ? 451.96 mT / 4520 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 15x8 / 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 analysis of the assembly - data

The following values constitute the result of a engineering simulation. Results are based on models for the material Nd2Fe14B. Actual parameters may differ from theoretical values. Use these data as a supplementary guide for designers.

Table 1: Static pull force (force vs gap) - interaction chart
MW 15x8 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 4518 Gs
451.8 mT
 7.37 kg / 16.25 LBS
7370.0 g / 72.3 N
 strong
1 mm 3944 Gs
394.4 mT
 5.62 kg / 12.38 LBS
5616.2 g / 55.1 N
 strong
2 mm 3362 Gs
336.2 mT
 4.08 kg / 9.00 LBS
4083.1 g / 40.1 N
 strong
3 mm 2820 Gs
282.0 mT
 2.87 kg / 6.33 LBS
2871.9 g / 28.2 N
 strong
5 mm 1931 Gs
193.1 mT
 1.35 kg / 2.97 LBS
1346.9 g / 13.2 N
 low risk
10 mm 763 Gs
76.3 mT
 0.21 kg / 0.46 LBS
210.3 g / 2.1 N
 low risk
15 mm 349 Gs
34.9 mT
 0.04 kg / 0.10 LBS
44.0 g / 0.4 N
 low risk
20 mm 184 Gs
18.4 mT
 0.01 kg / 0.03 LBS
12.2 g / 0.1 N
 low risk
30 mm 68 Gs
6.8 mT
 0.00 kg / 0.00 LBS
1.7 g / 0.0 N
 low risk
50 mm 17 Gs
1.7 mT
 0.00 kg / 0.00 LBS
0.1 g / 0.0 N
 low risk
Grip strength drops significantly with every subsequent millimeter of gap. Keep in mind that every additional insulation layer (e.g., dirt, paint, veneer) strongly reduces the pull force. Magnets work optimally at the point of direct contact; air break weakens the power. Observe how rapidly the load capacity plummet, when the magnet does not adhere flatly to the metal substrate. When designing the arrangement, avoid unnecessary gaps.

Table 2: Slippage force (wall)
MW 15x8 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 1.47 kg / 3.25 LBS
1474.0 g / 14.5 N
1 mm Stal (~0.2) 1.12 kg / 2.48 LBS
1124.0 g / 11.0 N
2 mm Stal (~0.2) 0.82 kg / 1.80 LBS
816.0 g / 8.0 N
3 mm Stal (~0.2) 0.57 kg / 1.27 LBS
574.0 g / 5.6 N
5 mm Stal (~0.2) 0.27 kg / 0.60 LBS
270.0 g / 2.6 N
10 mm Stal (~0.2) 0.04 kg / 0.09 LBS
42.0 g / 0.4 N
15 mm Stal (~0.2) 0.01 kg / 0.02 LBS
8.0 g / 0.1 N
20 mm Stal (~0.2) 0.00 kg / 0.00 LBS
2.0 g / 0.0 N
30 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
50 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
The following data shows the estimated holding capacity necessary to start the shifting of the magnet downwards on a upright steel wall (assuming standard friction coefficient). This value is a function of the separation distance between the magnet and the metal.

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MW 15x8 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
2.21 kg / 4.87 LBS
2211.0 g / 21.7 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
1.47 kg / 3.25 LBS
1474.0 g / 14.5 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.74 kg / 1.62 LBS
737.0 g / 7.2 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
3.69 kg / 8.12 LBS
3685.0 g / 36.1 N
When placing a magnet on a upright wall (e.g., a fridge), it will only hold only approx. 20%-30% of its maximum pull force. Gravity as well as a weak degree of grip mean that products slip easier than they pull off. Designing a vertical fastening? Consider that the shear force is significantly lower than the maximum static pull force. On a slippery surface, the magnet will give way down under a significantly smaller weight. Utilizing a rubberized coating can effectively improve the result.

Table 4: Material efficiency (saturation) - power losses
MW 15x8 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.74 kg / 1.62 LBS
737.0 g / 7.2 N
1 mm
25%
 1.84 kg / 4.06 LBS
1842.5 g / 18.1 N
2 mm
50%
 3.69 kg / 8.12 LBS
3685.0 g / 36.1 N
3 mm
75%
 5.53 kg / 12.19 LBS
5527.5 g / 54.2 N
5 mm
100%
 7.37 kg / 16.25 LBS
7370.0 g / 72.3 N
10 mm
100%
 7.37 kg / 16.25 LBS
7370.0 g / 72.3 N
11 mm
100%
 7.37 kg / 16.25 LBS
7370.0 g / 72.3 N
12 mm
100%
 7.37 kg / 16.25 LBS
7370.0 g / 72.3 N
A thin sheet is incapable of absorb the full magnetic flux, which wastes potential of the magnet. Should you attach a powerful product to a thin surface, the flux will pass right through and the pull force will drop sharply. To utilize full efficiency of this neodymium's power, you require a sufficiently solid piece of steel. The saturation phenomenon means that on thin elements (e.g., car bodies), the product shows lower pull force. We suggest choosing the steel thickness according to the table below.

Table 5: Thermal stability (stability) - resistance threshold
MW 15x8 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 7.37 kg / 16.25 LBS
7370.0 g / 72.3 N
 OK
40 °C -2.2% 7.21 kg / 15.89 LBS
7207.9 g / 70.7 N
 OK
60 °C -4.4% 7.05 kg / 15.53 LBS
7045.7 g / 69.1 N
 OK
80 °C -6.6% 6.88 kg / 15.18 LBS
6883.6 g / 67.5 N
100 °C -28.8% 5.25 kg / 11.57 LBS
5247.4 g / 51.5 N
Classic neodymiums irreversibly lose strength above the temperature limit. Watch out for overheating – heat can irreversibly damage this magnet. As the temperature rises, the magnet's force momentarily decreases. Do not use this magnet in hot environments higher than its working range. Exceeding the critical threshold will result in permanent loss of magnetism.
*Important note: Heat tolerance is determined by both grade, and the Permeance Coefficient Pc. Low-profile magnets (pancake types) may lose charge permanently under lower heat stress compared to rod magnets. The danger warning in the table signals a risk of irreversible loss for this particular item.

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MW 15x8 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Lateral Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 22.23 kg / 49.02 LBS
5 606 Gs
3.34 kg / 7.35 LBS
3335 g / 32.7 N
 N/A
1 mm 19.55 kg / 43.11 LBS
8 473 Gs
2.93 kg / 6.47 LBS
2933 g / 28.8 N
 17.60 kg / 38.80 LBS
~0 Gs
2 mm 16.94 kg / 37.35 LBS
7 887 Gs
2.54 kg / 5.60 LBS
2541 g / 24.9 N
 15.25 kg / 33.62 LBS
~0 Gs
3 mm 14.52 kg / 32.00 LBS
7 301 Gs
2.18 kg / 4.80 LBS
2178 g / 21.4 N
 13.07 kg / 28.80 LBS
~0 Gs
5 mm 10.37 kg / 22.85 LBS
6 169 Gs
1.55 kg / 3.43 LBS
1555 g / 15.3 N
 9.33 kg / 20.57 LBS
~0 Gs
10 mm 4.06 kg / 8.96 LBS
3 862 Gs
0.61 kg / 1.34 LBS
609 g / 6.0 N
 3.66 kg / 8.06 LBS
~0 Gs
20 mm 0.63 kg / 1.40 LBS
1 526 Gs
0.10 kg / 0.21 LBS
95 g / 0.9 N
 0.57 kg / 1.26 LBS
~0 Gs
50 mm 0.01 kg / 0.03 LBS
215 Gs
0.00 kg / 0.00 LBS
2 g / 0.0 N
 0.01 kg / 0.02 LBS
~0 Gs
60 mm 0.01 kg / 0.01 LBS
136 Gs
0.00 kg / 0.00 LBS
1 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
70 mm 0.00 kg / 0.00 LBS
91 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
80 mm 0.00 kg / 0.00 LBS
64 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
90 mm 0.00 kg / 0.00 LBS
46 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
100 mm 0.00 kg / 0.00 LBS
35 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
Two strong neodymiums interact from a significantly greater distance than a neodymium and metal combination. The setup of two magnets generates a stronger field and a further horizon of action. Planning to create a strong closure? Utilize two neodymiums instead of one magnet and a steel. Remember that when attracting two neodymiums, the impact force is massive. The levitation is a bit weaker than the connection force, but still large.
*Flux density for N-N configuration reaches ~0 Gs at the geometric center of the gap (resulting from vector opposition).
* Estimates show sliding force of two same neodymium magnets (friction coefficient ~0.15 for Ni-Ni plating).

Table 7: Hazards (electronics) - warnings
MW 15x8 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 8.0 cm
Hearing aid 10 Gs (1.0 mT) 6.5 cm
Mechanical watch 20 Gs (2.0 mT) 5.0 cm
Phone / Smartphone 40 Gs (4.0 mT) 4.0 cm
Remote 50 Gs (5.0 mT) 3.5 cm
Payment card 400 Gs (40.0 mT) 1.5 cm
HDD hard drive 600 Gs (60.0 mT) 1.5 cm
Powerful magnet radiation is a serious hazard to electronic devices and pacemakers. These neodymiums produce a flux that destroys function of sensitive medical devices. Notice: the invisible magnetic field penetrates the body and plastic. Special caution must be exercised by people with cochlear implants and drug dispensers. Also at risk are: automatic timepieces, remotes, membranes, and displays. Avoid contact with magnetic cards, HDD media, or precise measuring instruments.

Table 8: Dynamics (cracking risk) - collision effects
MW 15x8 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 22.88 km/h
(6.35 m/s)
 0.21 J
30 mm 23.24 km/h
(6.45 m/s)
 0.22 J
50 mm 23.24 km/h
(6.46 m/s)
 0.22 J
100 mm 23.24 km/h
(6.46 m/s)
 0.22 J
NdFeB products are very brittle – a collision with steel causes immediate chipping. Control the attraction moment – a neodymium left loose becomes dangerous. Impact energy can cause material chips or injury to skin. Be sure to control the product during installation so it doesn't slam with momentum against the steel surface. A collision at high speed ends with a crack of the neodymium. Wear safety glasses when working with powerful specimens.

Table 9: Surface protection spec
MW 15x8 / 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: Electrical data (Pc)
MW 15x8 / N38

Parameter Value SI Unit / Description
Magnetic Flux 8 074 Mx 80.7 µWb
Pc Coefficient 0.61 High (Stable)
Flux value emitted by the magnet pole. Essential parameter for generator designers as well as sensors. The Pc coefficient determines the working geometry.

Table 11: Submerged application
MW 15x8 / N38

Environment Effective steel pull Effect
Air (land) 7.37 kg Standard
Water (riverbed) 8.44 kg
(+1.07 kg buoyancy gain)
+14.5%
Rust risk: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!
Water displaces steel, making heavy objects slightly lighter. However, remember the water resistance when pulling the rope quickly.

1. Vertical hold

*Caution: On a vertical surface, the magnet holds only approx. 20-30% of its max power.

2. Steel thickness impact

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

3. Temperature resistance

*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) = 0.61

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

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: 010032-2026
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This product is an exceptionally strong rod magnet, composed of modern NdFeB material, which, with dimensions of Ø15x8 mm, guarantees optimal power. The MW 15x8 / N38 model is characterized by an accuracy of ±0.1mm and industrial build quality, making it a perfect solution for the most demanding engineers and designers. As a cylindrical magnet with impressive force (approx. 7.37 kg), this product is in stock from our European logistics center, ensuring quick order fulfillment. Additionally, its triple-layer Ni-Cu-Ni coating shields it against corrosion in typical operating conditions, guaranteeing an aesthetic appearance and durability for years.
It finds application in modeling, advanced automation, and broadly understood industry, serving as a fastening or actuating element. Thanks to the pull force of 72.28 N with a weight of only 10.6 g, this rod is indispensable in miniature devices 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 immediate cracking of this professional component. To ensure stability in industry, specialized industrial adhesives are used, which are safe for nickel and fill the gap, guaranteeing durability 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 (Ø15x8), 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 Ø15x8 mm, which, at a weight of 10.6 g, makes it an element with high magnetic energy density. The value of 72.28 N means that the magnet is capable of holding a weight many times exceeding its own mass of 10.6 g. The product has a [NiCuNi] coating, which secures it against external factors, giving it an aesthetic, silvery shine.
This rod magnet is magnetized axially (along the height of 8 mm), which means that the N and S poles are located on the flat, circular surfaces. Thanks to this, the magnet can be easily glued into a hole and achieve a strong field on the front surface. On request, we can also produce versions magnetized diametrically if your project requires it.

Advantages and disadvantages of rare earth magnets.

Strengths

Apart from their consistent magnetic energy, neodymium magnets have these key benefits:
  • Their power is durable, and after around 10 years it drops only by ~1% (according to research),
  • They possess excellent resistance to weakening of magnetic properties as a result of external fields,
  • By using a decorative coating of gold, the element presents an aesthetic look,
  • The surface of neodymium magnets generates a concentrated magnetic field – this is one of their assets,
  • Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the form) even at high temperatures reaching 230°C or more...
  • Thanks to versatility in constructing and the capacity to adapt to specific needs,
  • Key role in modern industrial fields – they serve a role in hard drives, drive modules, medical devices, as well as complex engineering applications.
  • Thanks to concentrated force, small magnets offer high operating force, in miniature format,

Weaknesses

Drawbacks and weaknesses of neodymium magnets and proposals for their use:
  • To avoid cracks upon strong impacts, we recommend using special steel housings. Such a solution secures the magnet and simultaneously improves its durability.
  • Neodymium magnets lose their power under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
  • Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material immune to moisture, when using outdoors
  • We suggest a housing - magnetic holder, due to difficulties in creating nuts inside the magnet and complex forms.
  • Potential hazard resulting from small fragments of magnets can be dangerous, in case of ingestion, which gains importance in the context of child safety. Furthermore, small elements of these products are able to complicate diagnosis medical when they are in the body.
  • Due to expensive raw materials, their price is higher than average,

Holding force characteristics

Maximum magnetic pulling force – what affects it?

The declared magnet strength refers to the limit force, measured under laboratory conditions, meaning:
  • on a base made of mild steel, effectively closing the magnetic flux
  • whose transverse dimension equals approx. 10 mm
  • with an polished touching surface
  • with zero gap (without paint)
  • under perpendicular force vector (90-degree angle)
  • at temperature room level

Determinants of practical lifting force of a magnet

Effective lifting capacity impacted by working environment parameters, including (from priority):
  • Gap between magnet and steel – even a fraction of a millimeter of separation (caused e.g. by varnish or dirt) drastically reduces the pulling force, often by half at just 0.5 mm.
  • Angle of force application – maximum parameter is reached only during pulling at a 90° angle. The force required to slide of the magnet along the plate is standardly several times smaller (approx. 1/5 of the lifting capacity).
  • Wall thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field penetrates through instead of generating force.
  • Steel grade – ideal substrate is pure iron steel. Hardened steels may attract less.
  • Plate texture – smooth surfaces ensure maximum contact, which increases field saturation. Uneven metal reduce efficiency.
  • Thermal conditions – NdFeB sinters have a negative temperature coefficient. When it is hot they are weaker, and at low temperatures gain strength (up to a certain limit).

Holding force was checked on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, however under parallel forces the lifting capacity is smaller. Additionally, even a slight gap between the magnet’s surface and the plate reduces the lifting capacity.

Safe handling of NdFeB magnets
Machining danger

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

Product not for children

Neodymium magnets are not toys. Eating multiple magnets can lead to them attracting across intestines, which constitutes a direct threat to life and requires urgent medical intervention.

Magnetic media

Equipment safety: Neodymium magnets can damage payment cards and sensitive devices (pacemakers, medical aids, mechanical watches).

Magnetic interference

Note: rare earth magnets generate a field that disrupts precision electronics. Maintain a safe distance from your phone, tablet, and GPS.

Bodily injuries

Danger of trauma: The attraction force is so great that it can result in blood blisters, crushing, and even bone fractures. Protective gloves are recommended.

Operating temperature

Control the heat. Exposing the magnet above 80 degrees Celsius will destroy its magnetic structure and pulling force.

Implant safety

Medical warning: Strong magnets can turn off heart devices and defibrillators. Do not approach if you have medical devices.

Allergy Warning

Warning for allergy sufferers: The Ni-Cu-Ni coating contains nickel. If an allergic reaction appears, cease handling magnets and wear gloves.

Caution required

Before use, check safety instructions. Uncontrolled attraction can destroy the magnet or hurt your hand. Be predictive.

Magnet fragility

Neodymium magnets are ceramic materials, meaning they are very brittle. Clashing of two magnets leads to them breaking into small pieces.

Attention! More info about hazards in the article: Safety of working with magnets.