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MPL 40x10x4x2[7/3.5] / N38 - lamellar magnet

lamellar magnet

Catalog no 020151

GTIN/EAN: 5906301811572

Load capacity 9.31 kg / 91.33 N Magnetic Induction 275.57 mT / 2756 Gs
length
40 mm [±0,1 mm]
Width
10 mm [±0,1 mm]
Height
4 mm [±0,1 mm]
Weight
12 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel
technical parameters »

7.49 zł net / pcs

9.21 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 details - MPL 40x10x4x2[7/3.5] / N38 - lamellar magnet

Specification / characteristics - MPL 40x10x4x2[7/3.5] / N38 - lamellar magnet

properties
properties values
Cat. no. 020151
GTIN/EAN 5906301811572
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 40 mm [±0,1 mm]
Width 10 mm [±0,1 mm]
Height 4 mm [±0,1 mm]
Weight 12 g
Magnetization Direction ↑ axial
Load capacity ~ ? 9.31 kg / 91.33 N
Magnetic Induction ~ ? 275.57 mT / 2756 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 40x10x4x2[7/3.5] / N38 - lamellar 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

Engineering modeling of the assembly - data

These data represent the direct effect of a engineering simulation. Values rely on algorithms for the material Nd2Fe14B. Operational performance may differ. Treat these calculations as a preliminary roadmap for designers.

Table 1: Static force (pull vs distance) - characteristics
MPL 40x10x4x2[7/3.5] / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 2755 Gs
275.5 mT
 9.31 kg / 20.53 LBS
9310.0 g / 91.3 N
 medium risk
1 mm 2413 Gs
241.3 mT
 7.14 kg / 15.75 LBS
7143.1 g / 70.1 N
 medium risk
2 mm 2044 Gs
204.4 mT
 5.13 kg / 11.31 LBS
5128.9 g / 50.3 N
 medium risk
3 mm 1703 Gs
170.3 mT
 3.56 kg / 7.85 LBS
3559.5 g / 34.9 N
 medium risk
5 mm 1173 Gs
117.3 mT
 1.69 kg / 3.72 LBS
1688.2 g / 16.6 N
 safe
10 mm 522 Gs
52.2 mT
 0.33 kg / 0.74 LBS
334.9 g / 3.3 N
 safe
15 mm 277 Gs
27.7 mT
 0.09 kg / 0.21 LBS
94.2 g / 0.9 N
 safe
20 mm 163 Gs
16.3 mT
 0.03 kg / 0.07 LBS
32.8 g / 0.3 N
 safe
30 mm 69 Gs
6.9 mT
 0.01 kg / 0.01 LBS
5.8 g / 0.1 N
 safe
50 mm 19 Gs
1.9 mT
 0.00 kg / 0.00 LBS
0.5 g / 0.0 N
 safe
Magnetic force drops drastically per each millimeter of distance. Note that even a very thin break (e.g., contamination, paint, dust) strongly weakens the grip. Magnetic products hold optimally at the point of direct contact; distance kills the force. Observe how flashily the parameters fall, when the magnet does not touch directly to the metal substrate. When designing the arrangement, avoid additional spacers.

Table 2: Vertical hold (wall)
MPL 40x10x4x2[7/3.5] / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 1.86 kg / 4.11 LBS
1862.0 g / 18.3 N
1 mm Stal (~0.2) 1.43 kg / 3.15 LBS
1428.0 g / 14.0 N
2 mm Stal (~0.2) 1.03 kg / 2.26 LBS
1026.0 g / 10.1 N
3 mm Stal (~0.2) 0.71 kg / 1.57 LBS
712.0 g / 7.0 N
5 mm Stal (~0.2) 0.34 kg / 0.75 LBS
338.0 g / 3.3 N
10 mm Stal (~0.2) 0.07 kg / 0.15 LBS
66.0 g / 0.6 N
15 mm Stal (~0.2) 0.02 kg / 0.04 LBS
18.0 g / 0.2 N
20 mm Stal (~0.2) 0.01 kg / 0.01 LBS
6.0 g / 0.1 N
30 mm Stal (~0.2) 0.00 kg / 0.00 LBS
2.0 g / 0.0 N
50 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
The following data indicates the estimated weight limit required to cause the downward movement of the magnet down against a vertical steel wall (assuming typical friction). This parameter varies with the distance between the magnet and the surface.

Table 3: Vertical assembly (sliding) - vertical pull
MPL 40x10x4x2[7/3.5] / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
2.79 kg / 6.16 LBS
2793.0 g / 27.4 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
1.86 kg / 4.11 LBS
1862.0 g / 18.3 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.93 kg / 2.05 LBS
931.0 g / 9.1 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
4.66 kg / 10.26 LBS
4655.0 g / 45.7 N
When mounting a magnet on a vertical plane (e.g., a board), it will only hold barely about 20%-30% of its maximum pull force. Gravity as well as a weak degree of grip mean that holders slip faster than they detach. Want to create a hanger? Remember that the sliding force is significantly lower than the maximum static pull force. On a painted metal, the magnet will give way down under a noticeably lighter weight. Application of an anti-slip pad can drastically increase the grip.

Table 4: Material efficiency (saturation) - sheet metal selection
MPL 40x10x4x2[7/3.5] / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.93 kg / 2.05 LBS
931.0 g / 9.1 N
1 mm
25%
 2.33 kg / 5.13 LBS
2327.5 g / 22.8 N
2 mm
50%
 4.66 kg / 10.26 LBS
4655.0 g / 45.7 N
3 mm
75%
 6.98 kg / 15.39 LBS
6982.5 g / 68.5 N
5 mm
100%
 9.31 kg / 20.53 LBS
9310.0 g / 91.3 N
10 mm
100%
 9.31 kg / 20.53 LBS
9310.0 g / 91.3 N
11 mm
100%
 9.31 kg / 20.53 LBS
9310.0 g / 91.3 N
12 mm
100%
 9.31 kg / 20.53 LBS
9310.0 g / 91.3 N
A thin sheet is not enough to focus the full magnetic flux, which weakens actual performance of the magnet. If you attach a powerful product to a thin surface, the flux will penetrate right through and the holding will be smaller. To achieve full efficiency of this neodymium's potential, you need a suitably thick element of steel. The material oversaturation causes that on sheet metal structures (e.g., car bodies), the product works worse. We advise picking the steel cross-section according to the table below.

Table 5: Working in heat (stability) - resistance threshold
MPL 40x10x4x2[7/3.5] / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 9.31 kg / 20.53 LBS
9310.0 g / 91.3 N
 OK
40 °C -2.2% 9.11 kg / 20.07 LBS
9105.2 g / 89.3 N
 OK
60 °C -4.4% 8.90 kg / 19.62 LBS
8900.4 g / 87.3 N
80 °C -6.6% 8.70 kg / 19.17 LBS
8695.5 g / 85.3 N
100 °C -28.8% 6.63 kg / 14.61 LBS
6628.7 g / 65.0 N
Standard neodymium magnets change their properties strength after exceeding the maximum temperature. Watch out for overheating – heat can permanently destroy this magnet. With every degree above norm, the neodymium's power momentarily decreases. Avoid using this magnet near heat sources higher than its safe range. Too high temperature will lead to irreversible degradation of magnetic properties.
*Technical advisory: Heat tolerance is determined by both grade, but also on the magnet's shape. Thin magnets (pancake types) may lose charge permanently at lower temperatures than long magnets. Warning indicator in the table indicates a risk of irreversible loss for this specific geometry.

Table 6: Two magnets (attraction) - forces in the system
MPL 40x10x4x2[7/3.5] / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 18.71 kg / 41.25 LBS
4 164 Gs
2.81 kg / 6.19 LBS
2807 g / 27.5 N
 N/A
1 mm 16.57 kg / 36.53 LBS
5 185 Gs
2.49 kg / 5.48 LBS
2486 g / 24.4 N
 14.91 kg / 32.88 LBS
~0 Gs
2 mm 14.36 kg / 31.65 LBS
4 826 Gs
2.15 kg / 4.75 LBS
2153 g / 21.1 N
 12.92 kg / 28.48 LBS
~0 Gs
3 mm 12.24 kg / 26.98 LBS
4 455 Gs
1.84 kg / 4.05 LBS
1836 g / 18.0 N
 11.01 kg / 24.28 LBS
~0 Gs
5 mm 8.61 kg / 18.98 LBS
3 737 Gs
1.29 kg / 2.85 LBS
1291 g / 12.7 N
 7.75 kg / 17.08 LBS
~0 Gs
10 mm 3.39 kg / 7.48 LBS
2 346 Gs
0.51 kg / 1.12 LBS
509 g / 5.0 N
 3.05 kg / 6.73 LBS
~0 Gs
20 mm 0.67 kg / 1.48 LBS
1 045 Gs
0.10 kg / 0.22 LBS
101 g / 1.0 N
 0.61 kg / 1.34 LBS
~0 Gs
50 mm 0.03 kg / 0.06 LBS
207 Gs
0.00 kg / 0.01 LBS
4 g / 0.0 N
 0.02 kg / 0.05 LBS
~0 Gs
60 mm 0.01 kg / 0.03 LBS
138 Gs
0.00 kg / 0.00 LBS
2 g / 0.0 N
 0.01 kg / 0.02 LBS
~0 Gs
70 mm 0.01 kg / 0.01 LBS
96 Gs
0.00 kg / 0.00 LBS
1 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
80 mm 0.00 kg / 0.01 LBS
69 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
51 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
39 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 wider radius than a magnet and steel setup. Such a system of magnet-to-magnet creates a more powerful interaction and a further horizon of performance. Designing a powerful holder? Utilize two neodymiums instead of one magnet and a steel. Remember that when attracting two neodymiums, the pinch force is extreme. The levitation is marginally weaker than the connection force, but still significant.
*Field value for N-N configuration reaches ~0 Gs at the midpoint of the gap (caused by magnetic field nullification).
Attention: Results apply to shear force of dual same neodymium magnets (friction coefficient ~0.15 for Ni-Ni plating).

Table 7: Hazards (electronics) - precautionary measures
MPL 40x10x4x2[7/3.5] / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 8.5 cm
Hearing aid 10 Gs (1.0 mT) 6.5 cm
Timepiece 20 Gs (2.0 mT) 5.0 cm
Mobile device 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) 1.0 cm
A strong magnetic field is a large risk to electronic devices and pacemakers. These neodymiums generate a field that prevents correct functioning of digital equipment. Remember: the unseen radiation passes through tissues and housings. Increased vigilance must be exercised by people with cochlear implants and insulin pumps. Also at risk are: mechanical watches, car keys, membranes, and screens. Avoid contact with magnetic cards, HDD media, or sensitive navigation tools.

Table 8: Dynamics (cracking risk) - collision effects
MPL 40x10x4x2[7/3.5] / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 24.25 km/h
(6.74 m/s)
 0.27 J
30 mm 24.84 km/h
(6.90 m/s)
 0.29 J
50 mm 24.85 km/h
(6.90 m/s)
 0.29 J
100 mm 24.86 km/h
(6.91 m/s)
 0.29 J
NdFeB products are very brittle – a violent impact against metal can result in shattering. Control the attraction moment – a magnet released freely turns into a projectile. 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 steel surface. A collision at high speed ends with a crack of the neodymium. Wear eye protection when playing with large magnets.

Table 9: Surface protection spec
MPL 40x10x4x2[7/3.5] / 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. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Electrical data (Pc)
MPL 40x10x4x2[7/3.5] / N38

Parameter Value SI Unit / Description
Magnetic Flux 9 840 Mx 98.4 µWb
Pc Coefficient 0.26 Low (Flat)
Flux value emitted by the magnet pole. Essential parameter when building generators as well as sensors. Pc value defines the magnet's operating point.

Table 11: Submerged application
MPL 40x10x4x2[7/3.5] / N38

Environment Effective steel pull Effect
Air (land) 9.31 kg Standard
Water (riverbed) 10.66 kg
(+1.35 kg buoyancy gain)
+14.5%
Corrosion warning: 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. Buoyancy helps in lifting finds.

1. Sliding resistance

*Note: On a vertical wall, the magnet retains just a fraction of its max power.

2. Efficiency vs thickness

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

3. Temperature resistance

*For standard magnets, the critical limit is 80°C.

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.26

The chart above illustrates the magnetic characteristics of the material within the second quadrant of the hysteresis loop. The solid red line represents the demagnetization curve (material potential), while the dashed blue line is the load line based on the magnet's geometry. The Pc (Permeance Coefficient), also known as the load line slope, is a dimensionless value that describes the relationship between the magnet's shape and its magnetic stability. The intersection of these two lines (the black dot) is the operating point — it determines the actual magnetic flux density generated by the magnet in this specific configuration. A higher Pc value means the magnet is more 'slender' (tall relative to its area), resulting in a higher operating point and better resistance to irreversible demagnetization caused by external fields or temperature. A value of 0.42 is relatively low (typical for flat magnets), meaning the operating point is closer to the 'knee' of the curve — caution is advised when operating at temperatures near the maximum limit to avoid strength loss.

Engineering data and GPSR

Material specification

iron (Fe) 64% – 68%
neodymium (Nd) 29% – 32%
boron (B) 1.1% – 1.2%
dysprosium (Dy) 0.5% – 2.0%
coating (Ni-Cu-Ni) < 0.05%

Sustainability

recyclability (EoL) 100%
recycled raw materials ~10% (pre-cons)
carbon footprint low / zredukowany
waste code (EWC) 16 02 16
Safety card (GPSR)
responsible entity
Dhit sp. z o.o.
ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki
tel: +48 22 499 98 98 | e-mail: bok@dhit.pl
batch number/type
id: 020151-2026
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This product is a very powerful plate magnet made of NdFeB material, which, with dimensions of 40x10x4 mm and a weight of 12 g, guarantees premium class connection. This rectangular block with a force of 91.33 N is ready for shipment in 24h, allowing for rapid realization of your project. 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. Watch your fingers! Magnets with a force of 9.31 kg can pinch very hard and cause hematomas. 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 generators and material handling systems. Thanks to the flat surface and high force (approx. 9.31 kg), they are ideal as hidden locks in furniture making and mounting elements in automation. Customers often choose this model for workshop organization on strips and for advanced DIY and modeling projects, where precision and power count.
Cyanoacrylate glues (super glue type) are good only for small magnets; for larger plates, we recommend resins. Double-sided tape cushions vibrations, which is an advantage when mounting in moving elements. 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. In practice, this means that this magnet has the greatest attraction force on its main planes (40x10 mm), which is ideal for flat mounting. This is the most popular configuration for block magnets used in separators and holders.
This model is characterized by dimensions 40x10x4 mm, which, at a weight of 12 g, makes it an element with high energy density. It is a magnetic block with dimensions 40x10x4 mm and a self-weight of 12 g, ready to work at temperatures up to 80°C. The protective [NiCuNi] coating secures the magnet against corrosion.

Advantages as well as disadvantages of Nd2Fe14B magnets.

Strengths

Apart from their superior magnetism, neodymium magnets have these key benefits:
  • They retain full power for around ten years – the loss is just ~1% (in theory),
  • Neodymium magnets are characterized by remarkably resistant to demagnetization caused by external interference,
  • In other words, due to the glossy surface of nickel, the element is aesthetically pleasing,
  • Neodymium magnets generate maximum magnetic induction on a small surface, which allows for strong attraction,
  • Through (appropriate) combination of ingredients, they can achieve high thermal resistance, allowing for action at temperatures reaching 230°C and above...
  • Thanks to modularity in shaping and the capacity to modify to individual projects,
  • Universal use in innovative solutions – they serve a role in hard drives, brushless drives, medical devices, as well as complex engineering applications.
  • Thanks to concentrated force, small magnets offer high operating force, in miniature format,

Cons

Cons of neodymium magnets and ways of using them
  • Susceptibility to cracking is one of their disadvantages. Upon intense impact they can fracture. We recommend keeping them in a strong case, which not only protects them against impacts but also increases their durability
  • Neodymium magnets lose their strength 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
  • Magnets exposed to a humid environment can rust. Therefore while using outdoors, we suggest using water-impermeable magnets made of rubber, plastic or other material resistant to moisture
  • Limited possibility of making threads in the magnet and complex shapes - preferred is cover - mounting mechanism.
  • Health risk to health – tiny shards of magnets are risky, in case of ingestion, which becomes key in the aspect of protecting the youngest. Additionally, small components of these magnets can complicate diagnosis medical in case of swallowing.
  • Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Lifting parameters

Detachment force of the magnet in optimal conditions – what it depends on?

The force parameter is a theoretical maximum value conducted under specific, ideal conditions:
  • on a base made of mild steel, optimally conducting the magnetic flux
  • with a cross-section of at least 10 mm
  • characterized by lack of roughness
  • with total lack of distance (no paint)
  • for force applied at a right angle (pull-off, not shear)
  • at conditions approx. 20°C

Impact of factors on magnetic holding capacity in practice

Effective lifting capacity is influenced by working environment parameters, such as (from most important):
  • Gap (between the magnet and the plate), since even a tiny clearance (e.g. 0.5 mm) can cause a drastic drop in lifting capacity by up to 50% (this also applies to varnish, corrosion or dirt).
  • Angle of force application – maximum parameter is available only during perpendicular pulling. The force required to slide of the magnet along the surface is standardly several times lower (approx. 1/5 of the lifting capacity).
  • Base massiveness – too thin steel does not accept the full field, causing part of the power to be escaped to the other side.
  • Material composition – different alloys attracts identically. Alloy additives weaken the attraction effect.
  • Smoothness – full contact is obtained only on polished steel. Rough texture create air cushions, weakening the magnet.
  • Operating temperature – NdFeB sinters have a sensitivity to temperature. At higher temperatures they are weaker, and in frost gain strength (up to a certain limit).

Lifting capacity testing was conducted on plates with a smooth surface of suitable thickness, under a perpendicular pulling force, whereas under shearing force the holding force is lower. Additionally, even a slight gap between the magnet’s surface and the plate lowers the load capacity.

H&S for magnets
Threat to navigation

Navigation devices and smartphones are extremely susceptible to magnetic fields. Close proximity with a powerful NdFeB magnet can decalibrate the internal compass in your phone.

Danger to pacemakers

Warning for patients: Powerful magnets disrupt electronics. Keep at least 30 cm distance or ask another person to work with the magnets.

Power loss in heat

Watch the temperature. Exposing the magnet above 80 degrees Celsius will destroy its magnetic structure and strength.

Crushing risk

Big blocks can break fingers in a fraction of a second. Never put your hand betwixt two attracting surfaces.

Sensitization to coating

A percentage of the population have a sensitization to nickel, which is the standard coating for neodymium magnets. Frequent touching can result in a rash. We suggest wear safety gloves.

Immense force

Handle magnets with awareness. Their immense force can surprise even professionals. Stay alert and respect their force.

Magnet fragility

Neodymium magnets are ceramic materials, which means they are very brittle. Collision of two magnets will cause them shattering into shards.

Swallowing risk

Always keep magnets away from children. Risk of swallowing is high, and the consequences of magnets connecting inside the body are fatal.

Fire warning

Drilling and cutting of NdFeB material carries a risk of fire hazard. Neodymium dust oxidizes rapidly with oxygen and is hard to extinguish.

Threat to electronics

Intense magnetic fields can destroy records on payment cards, hard drives, and storage devices. Maintain a gap of min. 10 cm.

Important! Details about hazards in the article: Magnet Safety Guide.