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MPL 40x15x5x2[7/3.5] / N38 - lamellar magnet

lamellar magnet

Catalog no 020154

GTIN/EAN: 5906301811602

5.00

length

40 mm [±0,1 mm]

Width

15 mm [±0,1 mm]

Height

5 mm [±0,1 mm]

Weight

22.5 g

Magnetization Direction

↑ axial

Load capacity

11.35 kg / 111.37 N

Magnetic Induction

249.11 mT / 2491 Gs

Coating

[NiCuNi] Nickel

view parameters »

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Technical - MPL 40x15x5x2[7/3.5] / N38 - lamellar magnet

Specification / characteristics - MPL 40x15x5x2[7/3.5] / N38 - lamellar magnet

properties
properties values
Cat. no. 020154
GTIN/EAN 5906301811602
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 15 mm [±0,1 mm]
Height 5 mm [±0,1 mm]
Weight 22.5 g
Magnetization Direction ↑ axial
Load capacity ~ ? 11.35 kg / 111.37 N
Magnetic Induction ~ ? 249.11 mT / 2491 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 40x15x5x2[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 312 - 380 °C
Curie Temperature TF 593 - 716 °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 modeling of the product - report

Presented data constitute the direct effect of a physical simulation. Results were calculated on algorithms for the class Nd2Fe14B. Real-world parameters might slightly differ from theoretical values. Use these calculations as a supplementary guide during assembly planning.

Table 1: Static pull force (pull vs distance) - power drop
MPL 40x15x5x2[7/3.5] / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 2490 Gs
249.0 mT
 11.35 kg / 25.02 lbs
11350.0 g / 111.3 N
 dangerous!
1 mm 2306 Gs
230.6 mT
 9.73 kg / 21.45 lbs
9731.3 g / 95.5 N
 strong
2 mm 2095 Gs
209.5 mT
 8.03 kg / 17.70 lbs
8028.8 g / 78.8 N
 strong
3 mm 1877 Gs
187.7 mT
 6.45 kg / 14.21 lbs
6445.4 g / 63.2 N
 strong
5 mm 1472 Gs
147.2 mT
 3.97 kg / 8.74 lbs
3965.1 g / 38.9 N
 strong
10 mm 792 Gs
79.2 mT
 1.15 kg / 2.53 lbs
1147.1 g / 11.3 N
 weak grip
15 mm 454 Gs
45.4 mT
 0.38 kg / 0.83 lbs
376.9 g / 3.7 N
 weak grip
20 mm 278 Gs
27.8 mT
 0.14 kg / 0.31 lbs
141.4 g / 1.4 N
 weak grip
30 mm 122 Gs
12.2 mT
 0.03 kg / 0.06 lbs
27.0 g / 0.3 N
 weak grip
50 mm 35 Gs
3.5 mT
 0.00 kg / 0.01 lbs
2.3 g / 0.0 N
 weak grip
Magnetic force decreases sharply with every mm of gap. Keep in mind that even the smallest gap (e.g., contamination, varnish, rust) strongly diminishes the holding power. Magnetic products hold optimally in perfect adhesion; distance weakens the force. Notice how quickly the load capacity drop, when the magnet does not adhere directly to the steel surface. When designing the assembly, eliminate additional spacers.

Table 2: Sliding hold (vertical surface)
MPL 40x15x5x2[7/3.5] / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 2.27 kg / 5.00 lbs
2270.0 g / 22.3 N
1 mm Stal (~0.2) 1.95 kg / 4.29 lbs
1946.0 g / 19.1 N
2 mm Stal (~0.2) 1.61 kg / 3.54 lbs
1606.0 g / 15.8 N
3 mm Stal (~0.2) 1.29 kg / 2.84 lbs
1290.0 g / 12.7 N
5 mm Stal (~0.2) 0.79 kg / 1.75 lbs
794.0 g / 7.8 N
10 mm Stal (~0.2) 0.23 kg / 0.51 lbs
230.0 g / 2.3 N
15 mm Stal (~0.2) 0.08 kg / 0.17 lbs
76.0 g / 0.7 N
20 mm Stal (~0.2) 0.03 kg / 0.06 lbs
28.0 g / 0.3 N
30 mm Stal (~0.2) 0.01 kg / 0.01 lbs
6.0 g / 0.1 N
50 mm Stal (~0.2) 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
The table below presents the estimated force necessary to cause the shifting of the magnet vertically against a vertical steel wall (assuming typical friction). The holding force depends on the gap size between the magnet and the metal.

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MPL 40x15x5x2[7/3.5] / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
3.41 kg / 7.51 lbs
3405.0 g / 33.4 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
2.27 kg / 5.00 lbs
2270.0 g / 22.3 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
1.14 kg / 2.50 lbs
1135.0 g / 11.1 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
5.68 kg / 12.51 lbs
5675.0 g / 55.7 N
When hanging a element on a vertical surface (e.g., a car body), it will maintain just about 20%-30% of its maximum pull force. Gravity as well as a low friction coefficient cause that holders move down faster than they detach. Want to create a hanger? Remember that the shear force is significantly lower than the maximum static pull force. On a slippery surface, the magnet will slide down under a significantly smaller weight. Utilizing a rubberized coating can drastically raise the stability.

Table 4: Steel thickness (substrate influence) - sheet metal selection
MPL 40x15x5x2[7/3.5] / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
5%
 0.57 kg / 1.25 lbs
567.5 g / 5.6 N
1 mm
13%
 1.42 kg / 3.13 lbs
1418.8 g / 13.9 N
2 mm
25%
 2.84 kg / 6.26 lbs
2837.5 g / 27.8 N
3 mm
38%
 4.26 kg / 9.38 lbs
4256.3 g / 41.8 N
5 mm
63%
 7.09 kg / 15.64 lbs
7093.8 g / 69.6 N
10 mm
100%
 11.35 kg / 25.02 lbs
11350.0 g / 111.3 N
11 mm
100%
 11.35 kg / 25.02 lbs
11350.0 g / 111.3 N
12 mm
100%
 11.35 kg / 25.02 lbs
11350.0 g / 111.3 N
A too thin steel is unable to take in the full magnetic flux, which squanders power of the magnet. Should you attach a powerful product to a weak sheet, the flux will penetrate right through and the pull force will drop sharply. To achieve full efficiency of this magnet's power, you require a sufficiently solid element of metal. The material oversaturation causes that on sheet metal structures (e.g., appliance housings), the product holds weaker. We suggest choosing the steel thickness from these parameters.

Table 5: Working in heat (stability) - resistance threshold
MPL 40x15x5x2[7/3.5] / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 11.35 kg / 25.02 lbs
11350.0 g / 111.3 N
 OK
40 °C -2.2% 11.10 kg / 24.47 lbs
11100.3 g / 108.9 N
 OK
60 °C -4.4% 10.85 kg / 23.92 lbs
10850.6 g / 106.4 N
80 °C -6.6% 10.60 kg / 23.37 lbs
10600.9 g / 104.0 N
100 °C -28.8% 8.08 kg / 17.82 lbs
8081.2 g / 79.3 N
Standard neodymium magnets change their properties parameters past the thermal threshold. Avoid high temperatures – heat can permanently damage this magnet. As the temperature rises, the neodymium's force temporarily decreases. Do not use this magnet near heat sources higher than its working range. Ignoring the limit will result in irreversible degradation of magnetism.
*Important note: Heat tolerance depends not only on the material grade, but also on the magnet's shape. Thin magnets (low permeance coefficient) may lose charge permanently sooner than long magnets. Warning indicator in the table signals permanent field degradation for this specific geometry.

Table 6: Two magnets (repulsion) - field collision
MPL 40x15x5x2[7/3.5] / N38

Gap (mm) Attraction (kg/lbs) (N-S) Lateral Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 22.94 kg / 50.58 lbs
3 961 Gs
3.44 kg / 7.59 lbs
3441 g / 33.8 N
 N/A
1 mm 21.37 kg / 47.11 lbs
4 807 Gs
3.21 kg / 7.07 lbs
3205 g / 31.4 N
 19.23 kg / 42.40 lbs
~0 Gs
2 mm 19.67 kg / 43.37 lbs
4 612 Gs
2.95 kg / 6.50 lbs
2951 g / 28.9 N
 17.70 kg / 39.03 lbs
~0 Gs
3 mm 17.94 kg / 39.55 lbs
4 404 Gs
2.69 kg / 5.93 lbs
2691 g / 26.4 N
 16.15 kg / 35.59 lbs
~0 Gs
5 mm 14.58 kg / 32.15 lbs
3 971 Gs
2.19 kg / 4.82 lbs
2187 g / 21.5 N
 13.12 kg / 28.93 lbs
~0 Gs
10 mm 8.01 kg / 17.67 lbs
2 944 Gs
1.20 kg / 2.65 lbs
1202 g / 11.8 N
 7.21 kg / 15.90 lbs
~0 Gs
20 mm 2.32 kg / 5.11 lbs
1 583 Gs
0.35 kg / 0.77 lbs
348 g / 3.4 N
 2.09 kg / 4.60 lbs
~0 Gs
50 mm 0.12 kg / 0.26 lbs
359 Gs
0.02 kg / 0.04 lbs
18 g / 0.2 N
 0.11 kg / 0.24 lbs
~0 Gs
60 mm 0.05 kg / 0.12 lbs
243 Gs
0.01 kg / 0.02 lbs
8 g / 0.1 N
 0.05 kg / 0.11 lbs
~0 Gs
70 mm 0.03 kg / 0.06 lbs
171 Gs
0.00 kg / 0.01 lbs
4 g / 0.0 N
 0.02 kg / 0.05 lbs
~0 Gs
80 mm 0.01 kg / 0.03 lbs
124 Gs
0.00 kg / 0.00 lbs
2 g / 0.0 N
 0.01 kg / 0.03 lbs
~0 Gs
90 mm 0.01 kg / 0.02 lbs
92 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
70 Gs
0.00 kg / 0.00 lbs
1 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
Two magnetic products interact from a significantly greater distance than a neodymium and metal combination. Such a system of two magnets generates a stronger field and a larger range of action. Planning to create a strong closure? Utilize two neodymiums instead of one magnet and a steel. Remember that when connecting a pair of magnets, the impact force is extreme. The repulsion force is slightly lower than the attraction, but still significant.
*Field value for N-N configuration is approximately ~0 Gs in the exact middle of the gap (caused by magnetic field nullification).
Note: Estimates show shear force of two same neodymium magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Safety (HSE) (implants) - warnings
MPL 40x15x5x2[7/3.5] / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 10.5 cm
Hearing aid 10 Gs (1.0 mT) 8.0 cm
Mechanical watch 20 Gs (2.0 mT) 6.5 cm
Phone / Smartphone 40 Gs (4.0 mT) 5.0 cm
Car key 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
Powerful magnet radiation is a real danger to IT equipment as well as medical implants. These neodymiums generate a field that destroys function of sensitive medical devices. Remember: the invisible magnetic field acts through matter and housings. Increased vigilance must be taken by people with cochlear implants and drug dispensers. Also at risk are: automatic timepieces, car keys, membranes, and screens. Do not place the magnet near cards, HDD media, or sensitive navigation tools.

Table 8: Collisions (kinetic energy) - collision effects
MPL 40x15x5x2[7/3.5] / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 24.04 km/h
(6.68 m/s)
 0.50 J
30 mm 39.29 km/h
(10.91 m/s)
 1.34 J
50 mm 50.66 km/h
(14.07 m/s)
 2.23 J
100 mm 71.63 km/h
(19.90 m/s)
 4.45 J
Neodymium magnets are prone to chipping – a violent impact against metal risks their cracking. Watch the impact speed – a magnet released freely becomes dangerous. Striking energy can cause material chips or injury to skin. Be sure to control the product during bringing near metal so it doesn't hit violently against the steel surface. A collision at high speed means shattering of the neodymium. Wear eye protection when handling with powerful specimens.

Table 9: Surface protection spec
MPL 40x15x5x2[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)
For outdoor applications, an epoxy coating is required; standard nickel is intended for indoor use. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Electrical data (Flux)
MPL 40x15x5x2[7/3.5] / N38

Parameter Value SI Unit / Description
Magnetic Flux 14 969 Mx 149.7 µWb
Pc Coefficient 0.26 Low (Flat)
Total magnetic flux emitted by the magnet pole. Key data for generator designers as well as sensors. Pc value defines the magnet's operating point.

Table 11: Underwater work (magnet fishing)
MPL 40x15x5x2[7/3.5] / N38

Environment Effective steel pull Effect
Air (land) 11.35 kg Standard
Water (riverbed) 13.00 kg
(+1.65 kg buoyancy gain)
+14.5%
Warning: 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. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.
1. Shear force

*Warning: On a vertical surface, the magnet holds merely approx. 20-30% of its nominal pull.

2. Steel saturation

*Thin steel (e.g. computer case) significantly reduces the holding force.

3. Temperature resistance

*For N38 grade, 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.

Technical and environmental data
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%
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: 020154-2026
Quick Unit Converter
Force (pull)
Magnetic Induction
Simply complete one field, and the tool compute the rest instantly.

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Model MPL 40x15x5x2[7/3.5] / N38 features a flat shape and industrial pulling force, making it an ideal solution for building separators and machines. As a block magnet with high power (approx. 11.35 kg), this product is available immediately from our warehouse in Poland. Additionally, its Ni-Cu-Ni coating protects it against corrosion in standard operating conditions, giving it an aesthetic appearance.
The key to success is sliding 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 40x15x5x2[7/3.5] / 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. Using a screwdriver risks destroying the coating and permanently cracking the magnet.
Plate magnets MPL 40x15x5x2[7/3.5] / N38 are the foundation for many industrial devices, such as filters catching filings and linear motors. They work great as invisible mounts under tiles, wood, or glass. Customers often choose this model for hanging tools on strips and for advanced DIY and modeling projects, where precision and power count.
For mounting flat magnets MPL 40x15x5x2[7/3.5] / N38, we recommend utilizing two-component adhesives (e.g., UHU Endfest, Distal), which ensure a durable bond with metal or plastic. 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. Thanks to this, it works best when "sticking" to sheet metal or another magnet with a large surface area. This is the most popular configuration for block magnets used in separators and holders.
This model is characterized by dimensions 40x15x5 mm, which, at a weight of 22.5 g, makes it an element with impressive energy density. It is a magnetic block with dimensions 40x15x5 mm and a self-weight of 22.5 g, ready to work at temperatures up to 80°C. The protective [NiCuNi] coating secures the magnet against corrosion.

Strengths as well as weaknesses of Nd2Fe14B magnets.

Pros

Besides their exceptional pulling force, neodymium magnets offer the following advantages:
  • They do not lose strength, even during around ten years – the decrease in lifting capacity is only ~1% (based on measurements),
  • Neodymium magnets prove to be highly resistant to demagnetization caused by external magnetic fields,
  • Thanks to the shimmering finish, the plating of nickel, gold-plated, or silver-plated gives an professional appearance,
  • The surface of neodymium magnets generates a powerful magnetic field – this is a distinguishing feature,
  • Through (appropriate) combination of ingredients, they can achieve high thermal resistance, allowing for action at temperatures reaching 230°C and above...
  • Possibility of individual shaping as well as adjusting to complex needs,
  • Wide application in high-tech industry – they find application in hard drives, brushless drives, diagnostic systems, as well as complex engineering applications.
  • Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in tiny dimensions, which enables their usage in miniature devices

Disadvantages

Cons of neodymium magnets and proposals for their use:
  • At strong impacts they can crack, therefore we advise placing them in special holders. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
  • When exposed to high temperature, neodymium magnets suffer a drop in force. Often, when the temperature exceeds 80°C, their power decreases (depending on the size and shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
  • Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material immune to moisture, when using outdoors
  • Due to limitations in realizing nuts and complicated shapes in magnets, we propose using casing - magnetic holder.
  • Possible danger resulting from small fragments of magnets are risky, if swallowed, which is particularly important in the context of child safety. Furthermore, small components of these products can be problematic in diagnostics medical after entering the body.
  • With budget limitations the cost of neodymium magnets is economically unviable,

Lifting parameters

Optimal lifting capacity of a neodymium magnet – what it depends on?

The specified lifting capacity represents the maximum value, recorded under ideal test conditions, specifically:
  • on a base made of structural steel, effectively closing the magnetic flux
  • with a thickness of at least 10 mm
  • characterized by lack of roughness
  • under conditions of gap-free contact (surface-to-surface)
  • under vertical force direction (90-degree angle)
  • in neutral thermal conditions

Practical aspects of lifting capacity – factors

It is worth knowing that the application force will differ depending on elements below, in order of importance:
  • Gap between magnet and steel – even a fraction of a millimeter of separation (caused e.g. by veneer or dirt) diminishes the pulling force, often by half at just 0.5 mm.
  • Direction of force – maximum parameter is available only during pulling at a 90° angle. The resistance to sliding of the magnet along the plate is usually several times lower (approx. 1/5 of the lifting capacity).
  • Metal thickness – thin material does not allow full use of the magnet. Magnetic flux passes through the material instead of generating force.
  • Metal type – different alloys reacts the same. Alloy additives worsen the interaction with the magnet.
  • Surface structure – the smoother and more polished the surface, the larger the contact zone and higher the lifting capacity. Unevenness acts like micro-gaps.
  • Temperature influence – high temperature reduces magnetic field. Exceeding the limit temperature can permanently damage the magnet.

Holding force was measured on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, however under shearing force the load capacity is reduced by as much as fivefold. In addition, even a minimal clearance between the magnet and the plate lowers the load capacity.

Warnings
Immense force

Use magnets with awareness. Their huge power can shock even experienced users. Be vigilant and respect their power.

Thermal limits

Avoid heat. Neodymium magnets are susceptible to temperature. If you require operation above 80°C, inquire about HT versions (H, SH, UH).

Impact on smartphones

A strong magnetic field disrupts the functioning of magnetometers in smartphones and GPS navigation. Do not bring magnets close to a smartphone to prevent damaging the sensors.

Fire warning

Mechanical processing of NdFeB material poses a fire risk. Neodymium dust oxidizes rapidly with oxygen and is hard to extinguish.

Hand protection

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

Protect data

Equipment safety: Neodymium magnets can ruin data carriers and sensitive devices (pacemakers, medical aids, mechanical watches).

Allergy Warning

Some people suffer from a hypersensitivity to Ni, which is the common plating for NdFeB magnets. Extended handling might lead to an allergic reaction. We recommend wear safety gloves.

Health Danger

Life threat: Strong magnets can deactivate heart devices and defibrillators. Stay away if you have electronic implants.

Product not for children

Always store magnets away from children. Ingestion danger is high, and the consequences of magnets clamping inside the body are fatal.

Risk of cracking

Protect your eyes. Magnets can explode upon violent connection, launching shards into the air. Wear goggles.

Danger! Need more info? Check our post: Why are neodymium magnets dangerous?