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MPL 40x10x4 / N38 - lamellar magnet

lamellar magnet

Catalog no 020150

GTIN/EAN: 5906301811565

5.00
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
check parameters »

3.96 zł net / pcs

4.87 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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Product card - MPL 40x10x4 / N38 - lamellar magnet

Specification / characteristics - MPL 40x10x4 / N38 - lamellar magnet

properties
properties values
Cat. no. 020150
GTIN/EAN 5906301811565
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 40x10x4 / 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

Technical simulation of the product - data

These information represent the result of a mathematical calculation. Results rely on algorithms for the class Nd2Fe14B. Real-world parameters might slightly differ. Please consider these calculations as a preliminary roadmap during assembly planning.

Table 1: Static pull force (pull vs distance) - power drop
MPL 40x10x4 / 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
 warning
1 mm 2413 Gs
241.3 mT
 7.14 kg / 15.75 LBS
7143.1 g / 70.1 N
 warning
2 mm 2044 Gs
204.4 mT
 5.13 kg / 11.31 LBS
5128.9 g / 50.3 N
 warning
3 mm 1703 Gs
170.3 mT
 3.56 kg / 7.85 LBS
3559.5 g / 34.9 N
 warning
5 mm 1173 Gs
117.3 mT
 1.69 kg / 3.72 LBS
1688.2 g / 16.6 N
 low risk
10 mm 522 Gs
52.2 mT
 0.33 kg / 0.74 LBS
334.9 g / 3.3 N
 low risk
15 mm 277 Gs
27.7 mT
 0.09 kg / 0.21 LBS
94.2 g / 0.9 N
 low risk
20 mm 163 Gs
16.3 mT
 0.03 kg / 0.07 LBS
32.8 g / 0.3 N
 low risk
30 mm 69 Gs
6.9 mT
 0.01 kg / 0.01 LBS
5.8 g / 0.1 N
 low risk
50 mm 19 Gs
1.9 mT
 0.00 kg / 0.00 LBS
0.5 g / 0.0 N
 low risk
Magnetic force weakens significantly with every subsequent millimeter of spacing. Remember that even a very thin break (e.g., dirt, varnish, dust) noticeably reduces the pull force. Neodymiums work optimally during direct contact; gap kills the force. Analyze how flashily the pull force drop, when the magnet does not touch tightly to the metal substrate. When calculating the arrangement, eliminate redundant distances.

Table 2: Shear capacity (wall)
MPL 40x10x4 / 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 table below presents the theoretical force sufficient to start the slippage of the magnet downwards on a vertical steel plate (assuming typical friction). This parameter is relative to the separation distance between the magnet and the surface.

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MPL 40x10x4 / 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 holder on a vertical wall (e.g., a board), it will maintain only about 1/5 of nominal attraction strength. Gravity and a weak degree of grip mean that holders slide down faster than they detach. Want to create a vertical fastening? Remember that the shear force is significantly lower than the perpendicular breakaway force. On a painted metal, the holder will slide down under a much lighter load. Using a rubber layer can significantly raise the stability.

Table 4: Material efficiency (substrate influence) - power losses
MPL 40x10x4 / 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 incapable of absorb the full magnetic flux, which wastes potential of the magnet. If you install a neodymium to a weak sheet, the flux will penetrate right through and the pull force will drop sharply. To squeeze 100% of this neodymium's power, you require a sufficiently solid backing of steel. The saturation phenomenon causes that on sheet metal structures (e.g., thin profiles), the magnet works worse. We suggest choosing the steel dimension according to the table below.

Table 5: Thermal resistance (stability) - resistance threshold
MPL 40x10x4 / 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 parameters past the thermal threshold. Avoid high temperatures – excessive heat can irreversibly demagnetize this magnet. With increasing heat, the magnet's capacity momentarily drops. Avoid using this magnet in hot environments higher than its working range. Too high temperature will cause destruction of magnetic properties.
*Important note: Heat tolerance is determined by both grade, but also on the magnet's shape. Low-profile magnets (pancake types) risk losing magnetic properties under lower heat stress compared to rod magnets. Red status in the table signals permanent field degradation for this particular item.

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MPL 40x10x4 / 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 strong neodymiums attract each other from a significantly greater distance than a neodymium and metal setup. The setup of magnet-to-magnet creates a more powerful interaction and a larger range of operation. Want to build a powerful holder? Apply two magnets instead of a neodymium and a steel. Be careful that when bringing together two magnets, the impact force is extreme. The levitation is marginally weaker than the attraction, but still impressive.
*Flux density in repulsion mode is approximately ~0 Gs in the exact middle of the gap (resulting from vector opposition).
Important: Estimates show friction force of a pair of identical magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Hazards (electronics) - warnings
MPL 40x10x4 / 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
Mechanical watch 20 Gs (2.0 mT) 5.0 cm
Phone / Smartphone 40 Gs (4.0 mT) 4.0 cm
Car key 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 serious hazard to electronic devices and medical implants. These magnets generate a field that destroys function of sensitive medical devices. Remember: the invisible magnetic field penetrates the body and housings. Increased vigilance must be taken by people with cochlear implants and drug dispensers. The risk also applies to: automatic timepieces, car keys, speakers, and screens. Do not bring the product near payment cards, HDD media, or precise measuring instruments.

Table 8: Collisions (cracking risk) - collision effects
MPL 40x10x4 / 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
Neodymium magnets are delicate – a violent impact against metal risks their cracking. Watch the impact speed – a magnet released freely speeds with massive force. Kinetic force can destroy the magnet or dangerous crushing to skin. Hold the magnet firmly during bringing near metal so it doesn't hit violently against the steel surface. A contact at a velocity of dozens of km/h means shattering of the magnet. Wear safety glasses when playing with large magnets.

Table 9: Coating parameters (durability)
MPL 40x10x4 / 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: Electrical data (Pc)
MPL 40x10x4 / N38

Parameter Value SI Unit / Description
Magnetic Flux 9 840 Mx 98.4 µWb
Pc Coefficient 0.26 Low (Flat)
Total magnetic flux emitted by the magnet pole. Essential parameter in coil applications as well as sensors. Pc value defines the working geometry.

Table 11: Underwater work (magnet fishing)
MPL 40x10x4 / N38

Environment Effective steel pull Effect
Air (land) 9.31 kg Standard
Water (riverbed) 10.66 kg
(+1.35 kg buoyancy gain)
+14.5%
Rust risk: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.
Contrary to myths, water does not block the magnetic field. However, remember the water resistance when pulling the rope quickly.

1. Sliding resistance

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

2. Steel saturation

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

3. Power loss vs temp

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

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

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

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

Chemical composition

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%

Ecology and recycling (GPSR)

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: 020150-2026
Measurement Calculator

Pulling force

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Just populate one field, to let the converter calculate the rest automatically.

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Model MPL 40x10x4 / N38 features a flat shape and industrial pulling force, making it a perfect solution for building separators and machines. This rectangular block with a force of 91.33 N is ready for shipment in 24h, allowing for rapid realization of your project. Additionally, its Ni-Cu-Ni coating secures it against corrosion in standard operating conditions, giving it an aesthetic appearance.
The key to success is shifting the magnets along their largest connection plane (using e.g., the edge of a table), which is easier than trying to tear them apart directly. To separate the MPL 40x10x4 / 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.
Plate magnets MPL 40x10x4 / N38 are the foundation for many industrial devices, such as magnetic separators and linear motors. They work great as invisible mounts 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. Remember to clean and degrease the magnet surface before gluing, which significantly increases the adhesion of the glue to the nickel coating.
Standardly, the MPL 40x10x4 / N38 model is magnetized through the thickness (dimension 4 mm), which means that the N and S poles are located on its largest, flat surfaces. In practice, this means that this magnet has the greatest attraction force on its main planes (40x10 mm), which is ideal for flat mounting. 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: 40 mm (length), 10 mm (width), and 4 mm (thickness). 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.

Pros and cons of neodymium magnets.

Benefits

Besides their high retention, neodymium magnets are valued for these benefits:
  • They have constant strength, and over around ten years their performance decreases symbolically – ~1% (according to theory),
  • Neodymium magnets are exceptionally resistant to magnetic field loss caused by external field sources,
  • A magnet with a metallic silver surface has an effective appearance,
  • Neodymium magnets generate maximum magnetic induction on a their surface, which increases force concentration,
  • Thanks to resistance to high temperature, they are able to function (depending on the shape) even at temperatures up to 230°C and higher...
  • Thanks to flexibility in constructing and the capacity to modify to unusual requirements,
  • Fundamental importance in electronics industry – they find application in magnetic memories, drive modules, medical devices, also industrial machines.
  • Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in tiny dimensions, which makes them useful in compact constructions

Cons

Disadvantages of neodymium magnets:
  • They are prone to damage upon too strong impacts. To avoid cracks, it is worth protecting magnets using a steel holder. Such protection not only shields the magnet but also improves its resistance to damage
  • When exposed to high temperature, neodymium magnets experience a drop in force. Often, when the temperature exceeds 80°C, their power decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
  • They oxidize in a humid environment. For use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
  • Due to limitations in realizing threads and complicated shapes in magnets, we propose using a housing - magnetic mount.
  • Health risk to health – tiny shards of magnets can be dangerous, when accidentally swallowed, which becomes key in the context of child safety. Additionally, small components of these magnets are able to disrupt the diagnostic process medical in case of swallowing.
  • With mass production the cost of neodymium magnets can be a barrier,

Pull force analysis

Magnetic strength at its maximum – what contributes to it?

Magnet power was determined for the most favorable conditions, assuming:
  • using a plate made of high-permeability steel, functioning as a circuit closing element
  • with a thickness of at least 10 mm
  • with an ideally smooth contact surface
  • with direct contact (no impurities)
  • during pulling in a direction perpendicular to the mounting surface
  • at temperature room level

Magnet lifting force in use – key factors

Holding efficiency is affected by specific conditions, such as (from priority):
  • Gap (betwixt the magnet and the plate), as even a tiny distance (e.g. 0.5 mm) leads to a reduction in lifting capacity by up to 50% (this also applies to varnish, corrosion or dirt).
  • Force direction – remember that the magnet holds strongest perpendicularly. Under sliding down, the holding force drops significantly, often to levels of 20-30% of the maximum 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.
  • Material type – ideal substrate is pure iron steel. Cast iron may have worse magnetic properties.
  • Plate texture – smooth surfaces guarantee perfect abutment, which improves field saturation. Uneven metal reduce efficiency.
  • Thermal conditions – NdFeB sinters have a negative temperature coefficient. At higher temperatures they are weaker, and at low temperatures gain strength (up to a certain limit).

Lifting capacity was measured with the use of a smooth steel plate of suitable thickness (min. 20 mm), under perpendicular pulling force, however under parallel forces the holding force is lower. Additionally, even a minimal clearance between the magnet’s surface and the plate lowers the load capacity.

Safety rules for work with neodymium magnets
Demagnetization risk

Monitor thermal conditions. Exposing the magnet to high heat will ruin its properties and pulling force.

Nickel allergy

Studies show that nickel (standard magnet coating) is a potent allergen. If you have an allergy, prevent touching magnets with bare hands or select versions in plastic housing.

Conscious usage

Be careful. Neodymium magnets act from a long distance and connect with huge force, often faster than you can move away.

Bone fractures

Danger of trauma: The pulling power is so great that it can cause blood blisters, crushing, and broken bones. Use thick gloves.

Eye protection

Protect your eyes. Magnets can explode upon violent connection, ejecting sharp fragments into the air. We recommend safety glasses.

Machining danger

Machining of NdFeB material carries a risk of fire hazard. Magnetic powder reacts violently with oxygen and is hard to extinguish.

Compass and GPS

GPS units and mobile phones are highly susceptible to magnetic fields. Direct contact with a powerful NdFeB magnet can decalibrate the sensors in your phone.

No play value

Strictly keep magnets out of reach of children. Choking hazard is high, and the consequences of magnets clamping inside the body are fatal.

Health Danger

Patients with a ICD have to keep an absolute distance from magnets. The magnetism can interfere with the functioning of the life-saving device.

Threat to electronics

Do not bring magnets near a wallet, laptop, or screen. The magnetism can irreversibly ruin these devices and wipe information from cards.

Safety First! Looking for details? Check our post: Why are neodymium magnets dangerous?