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MW 25x5 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010049

GTIN/EAN: 5906301810483

5.00
Load capacity 7.98 kg / 78.25 N Magnetic Induction 230.20 mT / 2302 Gs
Diameter Ø
25 mm [±0,1 mm]
Height
5 mm [±0,1 mm]
Weight
18.41 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

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6.82 zł net / pcs

8.39 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 of the product - MW 25x5 / N38 - cylindrical magnet

Specification / characteristics - MW 25x5 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010049
GTIN/EAN 5906301810483
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 25 mm [±0,1 mm]
Height 5 mm [±0,1 mm]
Weight 18.41 g
Magnetization Direction ↑ axial
Load capacity ~ ? 7.98 kg / 78.25 N
Magnetic Induction ~ ? 230.20 mT / 2302 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 25x5 / 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 simulation of the assembly - report

The following information are the result of a physical analysis. Results were calculated on models for the class Nd2Fe14B. Actual parameters might slightly differ. Please consider these data as a supplementary guide when designing systems.

Table 1: Static pull force (pull vs gap) - interaction chart
MW 25x5 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 2302 Gs
230.2 mT
 7.98 kg / 17.59 lbs
7980.0 g / 78.3 N
 warning
1 mm 2189 Gs
218.9 mT
 7.21 kg / 15.91 lbs
7214.9 g / 70.8 N
 warning
2 mm 2050 Gs
205.0 mT
 6.33 kg / 13.95 lbs
6329.3 g / 62.1 N
 warning
3 mm 1895 Gs
189.5 mT
 5.41 kg / 11.93 lbs
5410.7 g / 53.1 N
 warning
5 mm 1570 Gs
157.0 mT
 3.72 kg / 8.19 lbs
3715.4 g / 36.4 N
 warning
10 mm 890 Gs
89.0 mT
 1.19 kg / 2.63 lbs
1192.8 g / 11.7 N
 low risk
15 mm 495 Gs
49.5 mT
 0.37 kg / 0.81 lbs
368.5 g / 3.6 N
 low risk
20 mm 288 Gs
28.8 mT
 0.12 kg / 0.28 lbs
124.8 g / 1.2 N
 low risk
30 mm 116 Gs
11.6 mT
 0.02 kg / 0.04 lbs
20.2 g / 0.2 N
 low risk
50 mm 31 Gs
3.1 mT
 0.00 kg / 0.00 lbs
1.4 g / 0.0 N
 low risk
Pulling power drops significantly per each millimeter of gap. Remember that even a very thin break (e.g., contamination, paint, dust) strongly diminishes the holding power. Neodymiums work strongest during direct contact; gap kills the power. Observe how quickly the pull force plummet, when the product does not touch flatly to the steel surface. When planning the mounting, eliminate redundant distances.

Table 2: Shear load (vertical surface)
MW 25x5 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 1.60 kg / 3.52 lbs
1596.0 g / 15.7 N
1 mm Stal (~0.2) 1.44 kg / 3.18 lbs
1442.0 g / 14.1 N
2 mm Stal (~0.2) 1.27 kg / 2.79 lbs
1266.0 g / 12.4 N
3 mm Stal (~0.2) 1.08 kg / 2.39 lbs
1082.0 g / 10.6 N
5 mm Stal (~0.2) 0.74 kg / 1.64 lbs
744.0 g / 7.3 N
10 mm Stal (~0.2) 0.24 kg / 0.52 lbs
238.0 g / 2.3 N
15 mm Stal (~0.2) 0.07 kg / 0.16 lbs
74.0 g / 0.7 N
20 mm Stal (~0.2) 0.02 kg / 0.05 lbs
24.0 g / 0.2 N
30 mm Stal (~0.2) 0.00 kg / 0.01 lbs
4.0 g / 0.0 N
50 mm Stal (~0.2) 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
The table below indicates the approximate shear load required to cause the slippage of the magnet vertically against a upright steel plate (considering standard friction coefficient). This value is relative to the distance between the magnet and the surface.

Table 3: Wall mounting (sliding) - vertical pull
MW 25x5 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
2.39 kg / 5.28 lbs
2394.0 g / 23.5 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
1.60 kg / 3.52 lbs
1596.0 g / 15.7 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.80 kg / 1.76 lbs
798.0 g / 7.8 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
3.99 kg / 8.80 lbs
3990.0 g / 39.1 N
When mounting a holder on a upright surface (e.g., a board), it you can count on only about 1/5 of its nominal power. Gravity as well as a low friction coefficient cause that holders slide down faster than they pop off the substrate. Designing a vertical fastening? Note that the shear force is noticeably lower than the maximum static pull force. On a smooth steel, the magnet will give way down under a noticeably lighter weight. Using a rubber layer can drastically raise the stability.

Table 4: Material efficiency (saturation) - sheet metal selection
MW 25x5 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.80 kg / 1.76 lbs
798.0 g / 7.8 N
1 mm
25%
 2.00 kg / 4.40 lbs
1995.0 g / 19.6 N
2 mm
50%
 3.99 kg / 8.80 lbs
3990.0 g / 39.1 N
3 mm
75%
 5.99 kg / 13.19 lbs
5985.0 g / 58.7 N
5 mm
100%
 7.98 kg / 17.59 lbs
7980.0 g / 78.3 N
10 mm
100%
 7.98 kg / 17.59 lbs
7980.0 g / 78.3 N
11 mm
100%
 7.98 kg / 17.59 lbs
7980.0 g / 78.3 N
12 mm
100%
 7.98 kg / 17.59 lbs
7980.0 g / 78.3 N
A too thin steel is unable to take in the entire magnetic field, which wastes potential of the magnet. If you mount a strong magnet to a weak sheet, the field will pass right through and the attraction force will be weaker. To achieve the maximum of this neodymium's potential, you require a sufficiently solid backing of metal. The saturation effect means that on sheet metal structures (e.g., appliance housings), the holder works worse. We suggest choosing the steel thickness from these parameters.

Table 5: Working in heat (material behavior) - thermal limit
MW 25x5 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 7.98 kg / 17.59 lbs
7980.0 g / 78.3 N
 OK
40 °C -2.2% 7.80 kg / 17.21 lbs
7804.4 g / 76.6 N
 OK
60 °C -4.4% 7.63 kg / 16.82 lbs
7628.9 g / 74.8 N
80 °C -6.6% 7.45 kg / 16.43 lbs
7453.3 g / 73.1 N
100 °C -28.8% 5.68 kg / 12.53 lbs
5681.8 g / 55.7 N
Classic neodymiums change their properties strength above the temperature limit. Avoid high temperatures – excessive heat can irreversibly demagnetize this product. As the temperature rises, the neodymium's capacity momentarily decreases. Do not use this product near heat sources exceeding its safe range. Too high temperature will cause irreversible degradation of magnetism.
*Engineering note: Thermal stability depends not only on the material grade, but also on the magnet's shape. Low-profile magnets (low Pc) may lose charge permanently at lower temperatures compared to rod magnets. Red status in the table points to a risk of irreversible loss for this particular item.

Table 6: Two magnets (repulsion) - field collision
MW 25x5 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Lateral Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 16.03 kg / 35.34 lbs
3 871 Gs
2.40 kg / 5.30 lbs
2405 g / 23.6 N
 N/A
1 mm 15.31 kg / 33.75 lbs
4 498 Gs
2.30 kg / 5.06 lbs
2296 g / 22.5 N
 13.78 kg / 30.38 lbs
~0 Gs
2 mm 14.49 kg / 31.95 lbs
4 377 Gs
2.17 kg / 4.79 lbs
2174 g / 21.3 N
 13.05 kg / 28.76 lbs
~0 Gs
3 mm 13.62 kg / 30.03 lbs
4 243 Gs
2.04 kg / 4.50 lbs
2043 g / 20.0 N
 12.26 kg / 27.03 lbs
~0 Gs
5 mm 11.79 kg / 26.00 lbs
3 948 Gs
1.77 kg / 3.90 lbs
1769 g / 17.4 N
 10.61 kg / 23.40 lbs
~0 Gs
10 mm 7.46 kg / 16.46 lbs
3 141 Gs
1.12 kg / 2.47 lbs
1120 g / 11.0 N
 6.72 kg / 14.81 lbs
~0 Gs
20 mm 2.40 kg / 5.28 lbs
1 780 Gs
0.36 kg / 0.79 lbs
359 g / 3.5 N
 2.16 kg / 4.75 lbs
~0 Gs
50 mm 0.10 kg / 0.21 lbs
355 Gs
0.01 kg / 0.03 lbs
14 g / 0.1 N
 0.09 kg / 0.19 lbs
~0 Gs
60 mm 0.04 kg / 0.09 lbs
231 Gs
0.01 kg / 0.01 lbs
6 g / 0.1 N
 0.04 kg / 0.08 lbs
~0 Gs
70 mm 0.02 kg / 0.04 lbs
158 Gs
0.00 kg / 0.01 lbs
3 g / 0.0 N
 0.02 kg / 0.04 lbs
~0 Gs
80 mm 0.01 kg / 0.02 lbs
112 Gs
0.00 kg / 0.00 lbs
1 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
90 mm 0.01 kg / 0.01 lbs
82 Gs
0.00 kg / 0.00 lbs
1 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
100 mm 0.00 kg / 0.01 lbs
62 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
Two magnets interact from a significantly greater distance than a magnet and sheet combination. Such a system of two magnets produces a massive flux and a wider radius of action. Want to build a solid fastener? Apply two magnets instead of a neodymium and a striker plate. Remember that when bringing together two magnets, the collision energy is extreme. The levitation is slightly lower than the connection force, but still large.
*The magnetic induction in repulsion mode is approximately ~0 Gs at the geometric center of the gap (due to field cancellation).
Important: Estimates apply to sliding force of dual identical neodymium magnets (friction ~0.15 for Ni-Ni layer).

Table 7: Hazards (electronics) - precautionary measures
MW 25x5 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 10.0 cm
Hearing aid 10 Gs (1.0 mT) 8.0 cm
Timepiece 20 Gs (2.0 mT) 6.0 cm
Phone / Smartphone 40 Gs (4.0 mT) 5.0 cm
Remote 50 Gs (5.0 mT) 4.5 cm
Payment card 400 Gs (40.0 mT) 2.0 cm
HDD hard drive 600 Gs (60.0 mT) 1.5 cm
A strong magnetic field poses a serious hazard to electronics and medical implants. These neodymiums produce a flux that prevents correct functioning of sensitive medical devices. Remember: the unseen radiation passes through tissues and glass. Exceptional care must be taken by people with hearing aids and drug dispensers. Also at risk are: automatic timepieces, remotes, membranes, and displays. Do not place the magnet near cards, HDD media, or sensitive navigation tools.

Table 8: Collisions (kinetic energy) - collision effects
MW 25x5 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 23.68 km/h
(6.58 m/s)
 0.40 J
30 mm 25.14 km/h
(6.98 m/s)
 0.45 J
50 mm 25.18 km/h
(6.99 m/s)
 0.45 J
100 mm 25.18 km/h
(6.99 m/s)
 0.45 J
Magnetic elements are delicate – a collision with steel risks their cracking. Pay attention to connection velocity – a magnet released freely turns into a projectile. Striking energy can cause material chips or dangerous crushing to skin. Always hold the magnet during bringing near metal 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 neodymium. Use safety goggles when working with powerful specimens.

Table 9: Coating parameters (durability)
MW 25x5 / 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)
Neodymium magnets are highly susceptible to corrosion without proper protection. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Construction data (Pc)
MW 25x5 / N38

Parameter Value SI Unit / Description
Magnetic Flux 13 107 Mx 131.1 µWb
Pc Coefficient 0.29 Low (Flat)
Flux value emitted by the pole surface. Key data when building generators as well as sensors. Pc value determines the working geometry.

Table 11: Underwater work (magnet fishing)
MW 25x5 / N38

Environment Effective steel pull Effect
Air (land) 7.98 kg Standard
Water (riverbed) 9.14 kg
(+1.16 kg buoyancy gain)
+14.5%
Rust risk: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.
In water, the magnet feels stronger thanks to Archimedes' principle. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Shear force

*Note: On a vertical wall, the magnet holds merely ~20% of its max power.

2. Plate thickness effect

*Thin steel (e.g. 0.5mm PC case) significantly reduces the holding force.

3. Power loss vs temp

*For standard magnets, the max working temp is 80°C.

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.29

This simulation demonstrates the magnetic stability of the selected magnet under specific geometric conditions. 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

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: 010049-2026
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The offered product is an exceptionally strong rod magnet, produced from durable NdFeB material, which, with dimensions of Ø25x5 mm, guarantees maximum efficiency. This specific item is characterized by high dimensional repeatability and industrial build quality, making it an excellent solution for the most demanding engineers and designers. As a cylindrical magnet with impressive force (approx. 7.98 kg), this product is in stock from our warehouse in Poland, ensuring quick order fulfillment. Additionally, its triple-layer Ni-Cu-Ni coating secures it against corrosion in typical operating conditions, ensuring an aesthetic appearance and durability for years.
It successfully proves itself in DIY projects, advanced automation, and broadly understood industry, serving as a positioning or actuating element. Thanks to the high power of 78.25 N with a weight of only 18.41 g, this rod is indispensable in miniature devices and wherever every gram matters.
Since our magnets have a tolerance of ±0.1mm, the best method is to glue them into holes with a slightly larger diameter (e.g., 25.1 mm) using two-component epoxy glues. 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 frequently chosen standard for industrial neodymium magnets, offering a great economic balance and operational stability. If you need even stronger magnets in the same volume (Ø25x5), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our warehouse.
The presented product is a neodymium magnet with precisely defined parameters: diameter 25 mm and height 5 mm. The value of 78.25 N means that the magnet is capable of holding a weight many times exceeding its own mass of 18.41 g. The product has a [NiCuNi] coating, which secures it against oxidation, giving it an aesthetic, silvery shine.
Standardly, the magnetic axis runs through the center of the cylinder, causing the greatest attraction force to occur on the bases with a diameter of 25 mm. 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.

Benefits

Besides their magnetic performance, neodymium magnets are valued for these benefits:
  • They retain attractive force for almost 10 years – the loss is just ~1% (based on simulations),
  • They retain their magnetic properties even under close interference source,
  • By using a reflective coating of gold, the element presents an aesthetic look,
  • Magnetic induction on the working layer of the magnet remains impressive,
  • Due to their durability and thermal resistance, neodymium magnets can operate (depending on the shape) even at high temperatures reaching 230°C or more...
  • Thanks to flexibility in forming and the capacity to modify to client solutions,
  • Versatile presence in modern industrial fields – they are utilized in HDD drives, drive modules, advanced medical instruments, and modern systems.
  • Compactness – despite small sizes they generate large force, making them ideal for precision applications

Cons

Disadvantages of neodymium magnets:
  • Brittleness is one of their disadvantages. Upon strong impact they can fracture. We advise keeping them in a steel housing, which not only secures them against impacts but also raises their durability
  • We warn that neodymium magnets can lose their strength at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
  • Magnets exposed to a humid environment can rust. Therefore during using outdoors, we advise using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
  • Limited ability of creating nuts in the magnet and complicated forms - recommended is casing - magnet mounting.
  • Potential hazard to health – tiny shards of magnets are risky, when accidentally swallowed, which gains importance in the aspect of protecting the youngest. Additionally, small components of these products can disrupt the diagnostic process medical in case of swallowing.
  • Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Holding force characteristics

Breakaway strength of the magnet in ideal conditions – what it depends on?

Holding force of 7.98 kg is a theoretical maximum value executed under standard conditions:
  • on a plate made of structural steel, perfectly concentrating the magnetic flux
  • whose thickness equals approx. 10 mm
  • with a plane cleaned and smooth
  • with total lack of distance (without coatings)
  • under vertical force vector (90-degree angle)
  • at conditions approx. 20°C

Lifting capacity in practice – influencing factors

Real force is affected by working environment parameters, such as (from most important):
  • Air gap (between the magnet and the metal), because even a very small distance (e.g. 0.5 mm) leads to a drastic drop in force by up to 50% (this also applies to paint, rust or debris).
  • Force direction – note that the magnet has greatest strength perpendicularly. Under shear forces, the capacity drops drastically, 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.
  • Steel grade – ideal substrate is high-permeability steel. Stainless steels may generate lower lifting capacity.
  • Plate texture – smooth surfaces guarantee perfect abutment, which improves force. 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 was measured with the use of a smooth steel plate of optimal thickness (min. 20 mm), under vertically applied force, in contrast under shearing force the load capacity is reduced by as much as 5 times. Additionally, even a slight gap between the magnet and the plate decreases the load capacity.

Safe handling of NdFeB magnets
Metal Allergy

Allergy Notice: The Ni-Cu-Ni coating contains nickel. If skin irritation occurs, immediately stop working with magnets and wear gloves.

Data carriers

Device Safety: Neodymium magnets can damage payment cards and sensitive devices (heart implants, hearing aids, timepieces).

Hand protection

Large magnets can smash fingers in a fraction of a second. Never place your hand betwixt two attracting surfaces.

Do not overheat magnets

Do not overheat. Neodymium magnets are sensitive to temperature. If you need operation above 80°C, inquire about special high-temperature series (H, SH, UH).

Precision electronics

Note: neodymium magnets produce a field that confuses precision electronics. Maintain a separation from your phone, tablet, and GPS.

Do not drill into magnets

Drilling and cutting of NdFeB material poses a fire risk. Magnetic powder oxidizes rapidly with oxygen and is difficult to extinguish.

Material brittleness

Beware of splinters. Magnets can fracture upon uncontrolled impact, ejecting shards into the air. Wear goggles.

Swallowing risk

NdFeB magnets are not intended for children. Swallowing multiple magnets can lead to them attracting across intestines, which constitutes a direct threat to life and necessitates immediate surgery.

Conscious usage

Handle magnets with awareness. Their immense force can shock even experienced users. Be vigilant and do not underestimate their power.

Warning for heart patients

For implant holders: Strong magnetic fields disrupt electronics. Keep minimum 30 cm distance or ask another person to handle the magnets.

Important! Need more info? Read our article: Are neodymium magnets dangerous?