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MPL 25x10x3 / N38 - lamellar magnet

lamellar magnet

Catalog no 020387

GTIN/EAN: 5906301811862

5.00
Load capacity 4.14 kg / 40.60 N Magnetic Induction 230.69 mT / 2307 Gs
length
25 mm [±0,1 mm]
Width
10 mm [±0,1 mm]
Height
3 mm [±0,1 mm]
Weight
5.63 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

technical specifications »

2.90 zł net / pcs

3.57 zł with VAT (23% VAT) / pcs

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Frequently asked questions

How much will a block magnet really hold?
The catalogue force is measured in full contact with smooth steel at least 10 mm thick, pulled perpendicular, at about 20 °C. On 1 mm sheet about 50% of that value remains, on 0.5 mm about 25%. Mounted on a vertical wall the realistic figure is 20–30%, because the load is then in shear rather than in tension.
What is the maximum working temperature?
Standard N-series grades up to 80 °C, and N50, N52 and N54 up to 60 °C. Above the maximum working temperature the loss stops being reversible. The Curie temperature, at which magnetic properties are lost completely, is about 310 °C.
What safety factor should I allow?
At least twice the mass of the item, and three to five times for vertical mounting. The margin covers sheet thickness, surface condition, any layer of paint or rust, and vibration.

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 - MPL 25x10x3 / N38 - lamellar magnet

Specification / characteristics - MPL 25x10x3 / N38 - lamellar magnet

properties
properties values
Cat. no. 020387
GTIN/EAN 5906301811862
Production/Distribution Dhit sp. z o.o.
ul. Zielona 14 05-850 Ożarów Mazowiecki PL
Country of origin Poland / China / Germany
Customs code 85059029
length 25 mm [±0,1 mm]
Width 10 mm [±0,1 mm]
Height 3 mm [±0,1 mm]
Weight 5.63 g
Magnetization Direction ↑ axial
Load capacity ~ ? 4.14 kg / 40.60 N
Magnetic Induction ~ ? 230.69 mT / 2307 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 25x10x3 / N38 - lamellar magnet
properties values units
Remanence Br ? 12.2-12.6 kGs
Remanence Br ? 1220-1260 mT
Coercivity bHc ? 10.8-11.5 kOe
Coercivity bHc ? 860-915 kA/m
Intrinsic coercivity iHc ≥ 12 kOe
Intrinsic coercivity iHc ≥ 955 kA/m
Energy product BHmax ? 36-38 BH max MGOe
Energy product BHmax ? 287-303 BH max KJ/m
Maximum working temperature ? ≤ 80 °C

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C
properties values units
Vickers hardness ≥550 Hv
Density ≥7.4 g/cm3
Curie Temperature TC 310 °C
Curie Temperature TF 590 °F
Specific resistance 150 μΩ⋅cm
Bending strength 250 MPa
Compressive strength 1000~1100 MPa
Thermal expansion parallel (∥) to orientation (M) (3-4) x 10-6 °C-1
Thermal expansion perpendicular (⊥) to orientation (M) -(1-3) x 10-6 °C-1
Young's modulus 1.7 x 104 kg/mm²

Engineering simulation of the magnet - technical parameters

The following data represent the result of a engineering analysis. Values rely on algorithms for the material Nd2Fe14B. Real-world parameters may differ from theoretical values. Please consider these calculations as a reference point for designers.

Table 1: Static pull force (pull vs distance) - characteristics
MPL 25x10x3 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 2306 Gs
230.6 mT
 4.14 kg / 9.13 lbs
4140.0 g / 40.6 N
 medium risk
1 mm 2050 Gs
205.0 mT
 3.27 kg / 7.21 lbs
3272.4 g / 32.1 N
 medium risk
2 mm 1752 Gs
175.2 mT
 2.39 kg / 5.27 lbs
2388.9 g / 23.4 N
 medium risk
3 mm 1463 Gs
146.3 mT
 1.67 kg / 3.68 lbs
1667.1 g / 16.4 N
 low risk
5 mm 1000 Gs
100.0 mT
 0.78 kg / 1.72 lbs
779.2 g / 7.6 N
 low risk
10 mm 416 Gs
41.6 mT
 0.13 kg / 0.30 lbs
134.4 g / 1.3 N
 low risk
15 mm 200 Gs
20.0 mT
 0.03 kg / 0.07 lbs
31.0 g / 0.3 N
 low risk
20 mm 108 Gs
10.8 mT
 0.01 kg / 0.02 lbs
9.0 g / 0.1 N
 low risk
30 mm 40 Gs
4.0 mT
 0.00 kg / 0.00 lbs
1.3 g / 0.0 N
 low risk
50 mm 10 Gs
1.0 mT
 0.00 kg / 0.00 lbs
0.1 g / 0.0 N
 low risk
Pulling power drops significantly with every subsequent millimeter of distance. Note that even a very thin break (e.g., contamination, varnish, dust) noticeably reduces the pull force. Magnets work strongest during direct contact; gap nullifies the power. Analyze how rapidly the parameters plummet, when the product does not touch tightly to the metal substrate. When calculating the mounting, avoid additional spacers.

Table 2: Shear capacity (vertical surface)
MPL 25x10x3 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.83 kg / 1.83 lbs
828.0 g / 8.1 N
1 mm Stal (~0.2) 0.65 kg / 1.44 lbs
654.0 g / 6.4 N
2 mm Stal (~0.2) 0.48 kg / 1.05 lbs
478.0 g / 4.7 N
3 mm Stal (~0.2) 0.33 kg / 0.74 lbs
334.0 g / 3.3 N
5 mm Stal (~0.2) 0.16 kg / 0.34 lbs
156.0 g / 1.5 N
10 mm Stal (~0.2) 0.03 kg / 0.06 lbs
26.0 g / 0.3 N
15 mm Stal (~0.2) 0.01 kg / 0.01 lbs
6.0 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 table below indicates the theoretical weight limit needed to initiate the sliding of the magnet down against a upright steel wall (considering standard friction). This value is a function of the air gap between the magnet and the surface.

Table 3: Wall mounting (sliding) - vertical pull
MPL 25x10x3 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
1.24 kg / 2.74 lbs
1242.0 g / 12.2 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.83 kg / 1.83 lbs
828.0 g / 8.1 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.41 kg / 0.91 lbs
414.0 g / 4.1 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
2.07 kg / 4.56 lbs
2070.0 g / 20.3 N
When hanging a magnet on a upright wall (e.g., a car body), it will maintain just about 20%-30% of nominal attraction strength. Gravity and a weak degree of grip mean that magnets slip faster than they detach. Want to create a wall mount? Note that the shear force is significantly lower than the perpendicular breakaway force. On a smooth steel, the holder will slide down under a much lighter load. Utilizing a rubberized coating can significantly improve the result.

Table 4: Steel thickness (substrate influence) - power losses
MPL 25x10x3 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.41 kg / 0.91 lbs
414.0 g / 4.1 N
1 mm
25%
 1.04 kg / 2.28 lbs
1035.0 g / 10.2 N
2 mm
50%
 2.07 kg / 4.56 lbs
2070.0 g / 20.3 N
3 mm
75%
 3.10 kg / 6.85 lbs
3105.0 g / 30.5 N
5 mm
100%
 4.14 kg / 9.13 lbs
4140.0 g / 40.6 N
10 mm
100%
 4.14 kg / 9.13 lbs
4140.0 g / 40.6 N
11 mm
100%
 4.14 kg / 9.13 lbs
4140.0 g / 40.6 N
12 mm
100%
 4.14 kg / 9.13 lbs
4140.0 g / 40.6 N
A thin metal plate is incapable of absorb the full magnetic flux, which squanders power of the holder. If you attach a powerful product to a too thin substrate, the flux will penetrate right through and the attraction force will be weaker. To achieve 100% of this magnet's potential, you require a sufficiently solid backing of metal. The saturation effect means that on delicate walls (e.g., thin profiles), the magnet shows lower pull force. We recommend selecting the steel thickness based on the following data.

Table 5: Working in heat (stability) - power drop
MPL 25x10x3 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 4.14 kg / 9.13 lbs
4140.0 g / 40.6 N
 OK
40 °C -2.2% 4.05 kg / 8.93 lbs
4048.9 g / 39.7 N
 OK
60 °C -4.4% 3.96 kg / 8.73 lbs
3957.8 g / 38.8 N
80 °C -6.6% 3.87 kg / 8.52 lbs
3866.8 g / 37.9 N
100 °C -28.8% 2.95 kg / 6.50 lbs
2947.7 g / 28.9 N
Ordinary NdFeB products irreversibly lose strength past the thermal threshold. Avoid high temperatures – heat can irreversibly demagnetize this product. With increasing heat, the neodymium's force momentarily drops. Avoid using this product close to ovens higher than its working range. Ignoring the limit will cause permanent loss of magnetism.
*Engineering note: Temperature resistance is determined by both grade, and the Permeance Coefficient Pc. Thin magnets (low permeance coefficient) are more susceptible to demagnetization at lower temperatures than long magnets. Red status in the table signals permanent field degradation for this specific geometry.

Table 6: Magnet-Magnet interaction (repulsion) - field collision
MPL 25x10x3 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 8.20 kg / 18.07 lbs
3 767 Gs
1.23 kg / 2.71 lbs
1230 g / 12.1 N
 N/A
1 mm 7.38 kg / 16.27 lbs
4 377 Gs
1.11 kg / 2.44 lbs
1107 g / 10.9 N
 6.64 kg / 14.65 lbs
~0 Gs
2 mm 6.48 kg / 14.28 lbs
4 101 Gs
0.97 kg / 2.14 lbs
972 g / 9.5 N
 5.83 kg / 12.86 lbs
~0 Gs
3 mm 5.58 kg / 12.30 lbs
3 805 Gs
0.84 kg / 1.84 lbs
837 g / 8.2 N
 5.02 kg / 11.07 lbs
~0 Gs
5 mm 3.97 kg / 8.74 lbs
3 208 Gs
0.59 kg / 1.31 lbs
595 g / 5.8 N
 3.57 kg / 7.87 lbs
~0 Gs
10 mm 1.54 kg / 3.40 lbs
2 001 Gs
0.23 kg / 0.51 lbs
231 g / 2.3 N
 1.39 kg / 3.06 lbs
~0 Gs
20 mm 0.27 kg / 0.59 lbs
831 Gs
0.04 kg / 0.09 lbs
40 g / 0.4 N
 0.24 kg / 0.53 lbs
~0 Gs
50 mm 0.01 kg / 0.01 lbs
127 Gs
0.00 kg / 0.00 lbs
1 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
60 mm 0.00 kg / 0.01 lbs
80 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
70 mm 0.00 kg / 0.00 lbs
54 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
38 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
27 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
20 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
Two magnets attract each other from a much further distance than a magnet and steel setup. The connection of magnet-to-magnet creates a more powerful interaction and a further horizon of action. Designing a solid fastener? Utilize two neodymiums instead of one magnet and a striker plate. Exercise caution that when connecting a pair of magnets, the pinch force is huge. The levitation is slightly lower than the attraction, but still large.
*Flux density between like poles reaches ~0 Gs at the midpoint between the magnets (caused by magnetic field nullification).
Important: Figures refer to sliding force of a pair of identical magnets (friction ~0.15 for Ni-Ni layer).

Table 7: Protective zones (electronics) - precautionary measures
MPL 25x10x3 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 6.5 cm
Hearing aid 10 Gs (1.0 mT) 5.5 cm
Timepiece 20 Gs (2.0 mT) 4.0 cm
Phone / Smartphone 40 Gs (4.0 mT) 3.5 cm
Remote 50 Gs (5.0 mT) 3.0 cm
Payment card 400 Gs (40.0 mT) 1.5 cm
HDD hard drive 600 Gs (60.0 mT) 1.0 cm
Extremely neodym field poses a large risk to electronic devices and pacemakers. These NdFeB products produce a field that prevents correct functioning of digital equipment. Remember: the unseen radiation penetrates the body and housings. Increased vigilance must be exercised by people with cochlear implants and drug dispensers. Also at risk are: mechanical watches, remotes, speakers, and displays. Avoid contact with magnetic cards, hard drives, or sensitive navigation tools.

Table 8: Impact energy (kinetic energy) - warning
MPL 25x10x3 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 23.96 km/h
(6.66 m/s)
 0.12 J
30 mm 24.40 km/h
(6.78 m/s)
 0.13 J
50 mm 24.40 km/h
(6.78 m/s)
 0.13 J
100 mm 24.41 km/h
(6.78 m/s)
 0.13 J
Neodymium magnets are very brittle – a collision with steel causes immediate chipping. Pay attention to connection velocity – a neodymium left loose becomes dangerous. Kinetic force can trigger coating fragments or injury to skin. Hold the magnet firmly during installation so it doesn't slam with momentum against the metal. A collision at high speed almost guarantees destruction of the magnet. Wear eye protection when working with powerful specimens.

Table 9: Coating parameters (durability)
MPL 25x10x3 / 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)
MPL 25x10x3 / N38

Parameter Value SI Unit / Description
Magnetic Flux 5 928 Mx 59.3 µWb
Pc Coefficient 0.25 Low (Flat)
Total magnetic flux passing through the magnet pole. Essential parameter in coil applications as well as sensors. Pc value determines the magnet's operating point.

Table 11: Underwater work (magnet fishing)
MPL 25x10x3 / N38

Environment Effective steel pull Effect
Air (land) 4.14 kg Standard
Water (riverbed) 4.74 kg
(+0.60 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!
Contrary to myths, water does not block the magnetic field. Buoyancy helps in lifting finds.

1. Vertical hold

*Caution: On a vertical wall, the magnet holds merely approx. 20-30% of its perpendicular strength.

2. Steel saturation

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

3. Power loss vs temp

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

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.25

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

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%

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: 020387-2026
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This product is a very powerful plate magnet made of NdFeB material, which, with dimensions of 25x10x3 mm and a weight of 5.63 g, guarantees premium class connection. As a magnetic bar with high power (approx. 4.14 kg), this product is available off-the-shelf from our warehouse in Poland. The durable anti-corrosion layer ensures a long lifespan in a dry environment, protecting the core from oxidation.
Separating block magnets requires a technique based on sliding (moving one relative to the other), rather than forceful pulling apart. To separate the MPL 25x10x3 / N38 model, firmly slide one magnet over the edge of the other until the attraction force decreases. We recommend care, because after separation, the magnets may want to violently snap back together, which threatens pinching the skin. Never use metal tools for prying, as the brittle NdFeB material may chip and damage your eyes.
They constitute a key element in the production of wind generators and material handling systems. They work great as fasteners under tiles, wood, or glass. Their rectangular shape facilitates precise gluing into milled sockets in wood or plastic.
Cyanoacrylate glues (super glue type) are good only for small magnets; for larger plates, we recommend resins. For lighter applications or mounting on smooth surfaces, branded foam tape (e.g., 3M VHB) will work, provided the surface is perfectly degreased. Avoid chemically aggressive glues or hot glue, which can demagnetize neodymium (above 80°C).
The magnetic axis runs through the shortest dimension, which is typical for gripper magnets. Thanks to this, it works best when "sticking" to sheet metal or another magnet with a large surface area. Such a pole arrangement ensures maximum holding capacity when pressing against the sheet, creating a closed magnetic circuit.
The presented product is a neodymium magnet with precisely defined parameters: 25 mm (length), 10 mm (width), and 3 mm (thickness). It is a magnetic block with dimensions 25x10x3 mm and a self-weight of 5.63 g, ready to work at temperatures up to 80°C. The product meets the standards for N38 grade magnets.

Advantages as well as disadvantages of Nd2Fe14B magnets.

Benefits

Apart from their strong magnetic energy, neodymium magnets have these key benefits:
  • Their power remains stable, and after approximately ten years it drops only by ~1% (theoretically),
  • They are extremely resistant to demagnetization induced by external magnetic fields,
  • By covering with a lustrous layer of nickel, the element gains an aesthetic look,
  • The surface of neodymium magnets generates a maximum magnetic field – this is a distinguishing feature,
  • Thanks to resistance to high temperature, they can operate (depending on the form) even at temperatures up to 230°C and higher...
  • Possibility of detailed shaping as well as adjusting to complex applications,
  • Universal use in advanced technology sectors – they are used in computer drives, motor assemblies, medical equipment, also technologically advanced constructions.
  • Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Limitations

Problematic aspects of neodymium magnets: tips and applications.
  • Susceptibility to cracking is one of their disadvantages. Upon intense impact they can break. We recommend keeping them in a strong case, which not only secures them against impacts but also raises their durability
  • NdFeB magnets lose power 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 start to rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation as well as corrosion.
  • We suggest cover - magnetic mount, due to difficulties in producing nuts inside the magnet and complex forms.
  • Possible danger to health – tiny shards of magnets can be dangerous, in case of ingestion, which becomes key in the context of child health protection. It is also worth noting that tiny parts of these products can complicate diagnosis medical in case of swallowing.
  • Due to expensive raw materials, their price exceeds standard values,

Holding force characteristics

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

Information about lifting capacity was determined for the most favorable conditions, taking into account:
  • using a base made of high-permeability steel, acting as a magnetic yoke
  • possessing a thickness of min. 10 mm to ensure full flux closure
  • characterized by smoothness
  • under conditions of gap-free contact (metal-to-metal)
  • under perpendicular force vector (90-degree angle)
  • at room temperature

Lifting capacity in real conditions – factors

Bear in mind that the working load may be lower subject to the following factors, starting with the most relevant:
  • Distance – existence of any layer (paint, tape, gap) acts as an insulator, which lowers power steeply (even by 50% at 0.5 mm).
  • Pull-off angle – note that the magnet has greatest strength perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the nominal value.
  • Substrate thickness – for full efficiency, the steel must be sufficiently thick. Thin sheet limits the attraction force (the magnet "punches through" it).
  • Chemical composition of the base – low-carbon steel attracts best. Alloy admixtures decrease magnetic properties and holding force.
  • Surface condition – ground elements ensure maximum contact, which increases force. Rough surfaces reduce efficiency.
  • Temperature – heating the magnet results in weakening of induction. It is worth remembering the thermal limit for a given model.

Holding force was tested on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, whereas under parallel forces the lifting capacity is smaller. In addition, even a slight gap between the magnet’s surface and the plate reduces the load capacity.

Warnings
Machining danger

Dust created during machining of magnets is flammable. Avoid drilling into magnets without proper cooling and knowledge.

Do not underestimate power

Handle magnets with awareness. Their powerful strength can surprise even professionals. Be vigilant and respect their force.

Medical interference

People with a pacemaker should keep an large gap from magnets. The magnetic field can interfere with the operation of the life-saving device.

Bone fractures

Watch your fingers. Two large magnets will snap together immediately with a force of several hundred kilograms, destroying everything in their path. Be careful!

Danger to the youngest

Strictly keep magnets out of reach of children. Choking hazard is significant, and the effects of magnets connecting inside the body are very dangerous.

Safe distance

Powerful magnetic fields can destroy records on payment cards, hard drives, and other magnetic media. Maintain a gap of min. 10 cm.

Sensitization to coating

Some people experience a hypersensitivity to nickel, which is the common plating for neodymium magnets. Prolonged contact can result in an allergic reaction. We strongly advise wear safety gloves.

Magnet fragility

NdFeB magnets are sintered ceramics, meaning they are fragile like glass. Impact of two magnets leads to them cracking into small pieces.

Do not overheat magnets

Watch the temperature. Heating the magnet to high heat will ruin its properties and strength.

Keep away from electronics

Remember: rare earth magnets generate a field that disrupts precision electronics. Maintain a separation from your mobile, tablet, and navigation systems.

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