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MPL 3x3x3 / N38 - lamellar magnet

lamellar magnet

Catalog no 020148

GTIN/EAN: 5906301811541

5.00

length

3 mm [±0,1 mm]

Width

3 mm [±0,1 mm]

Height

3 mm [±0,1 mm]

Weight

0.2 g

Magnetization Direction

↑ axial

Load capacity

0.34 kg / 3.37 N

Magnetic Induction

538.48 mT / 5385 Gs

Coating

[NiCuNi] Nickel

check technical data »

0.1845 ZŁ with VAT / pcs + price for transport

0.1500 ZŁ net + 23% VAT / pcs

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Force as well as structure of neodymium magnets can be reviewed using our modular calculator.

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Physical properties - MPL 3x3x3 / N38 - lamellar magnet

Specification / characteristics - MPL 3x3x3 / N38 - lamellar magnet

properties
properties values
Cat. no. 020148
GTIN/EAN 5906301811541
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 3 mm [±0,1 mm]
Width 3 mm [±0,1 mm]
Height 3 mm [±0,1 mm]
Weight 0.2 g
Magnetization Direction ↑ axial
Load capacity ~ ? 0.34 kg / 3.37 N
Magnetic Induction ~ ? 538.48 mT / 5385 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 3x3x3 / 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

Engineering modeling of the assembly - report

These information constitute the result of a engineering analysis. Results were calculated on algorithms for the material Nd2Fe14B. Actual conditions may differ. Treat these data as a preliminary roadmap when designing systems.

Table 1: Static pull force (force vs gap) - characteristics
MPL 3x3x3 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 5372 Gs
537.2 mT
 0.34 kg / 0.75 lbs
340.0 g / 3.3 N
 weak grip
1 mm 2530 Gs
253.0 mT
 0.08 kg / 0.17 lbs
75.4 g / 0.7 N
 weak grip
2 mm 1127 Gs
112.7 mT
 0.01 kg / 0.03 lbs
15.0 g / 0.1 N
 weak grip
3 mm 562 Gs
56.2 mT
 0.00 kg / 0.01 lbs
3.7 g / 0.0 N
 weak grip
5 mm 192 Gs
19.2 mT
 0.00 kg / 0.00 lbs
0.4 g / 0.0 N
 weak grip
10 mm 35 Gs
3.5 mT
 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
 weak grip
15 mm 12 Gs
1.2 mT
 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
 weak grip
20 mm 5 Gs
0.5 mT
 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
 weak grip
30 mm 2 Gs
0.2 mT
 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
 weak grip
50 mm 0 Gs
0.0 mT
 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
 weak grip
Grip strength decreases significantly with every mm of spacing. Remember that even a microscopic distance (e.g., dirt, paint, veneer) noticeably weakens the grip. Magnets operate most effectively at the point of direct contact; gap kills the force. Notice how rapidly the load capacity fall, when the magnet does not adhere tightly to the steel surface. When planning the mounting, eliminate redundant distances.

Table 2: Shear hold (wall)
MPL 3x3x3 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.07 kg / 0.15 lbs
68.0 g / 0.7 N
1 mm Stal (~0.2) 0.02 kg / 0.04 lbs
16.0 g / 0.2 N
2 mm Stal (~0.2) 0.00 kg / 0.00 lbs
2.0 g / 0.0 N
3 mm Stal (~0.2) 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
5 mm Stal (~0.2) 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
10 mm Stal (~0.2) 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
15 mm Stal (~0.2) 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
20 mm Stal (~0.2) 0.00 kg / 0.00 lbs
0.0 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 following data shows the estimated shear load necessary to start the downward movement of the magnet vertically on a vertical metal surface (considering typical friction). This value depends on the separation distance between the magnet and the metal.

Table 3: Wall mounting (shearing) - vertical pull
MPL 3x3x3 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.10 kg / 0.22 lbs
102.0 g / 1.0 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.07 kg / 0.15 lbs
68.0 g / 0.7 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.03 kg / 0.07 lbs
34.0 g / 0.3 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
0.17 kg / 0.37 lbs
170.0 g / 1.7 N
When placing a magnet on a upright wall (e.g., a car body), it will maintain just about 1/5 of nominal attraction strength. Gravitational force as well as a weak degree of grip mean that holders move down faster than they pull off. Designing a wall mount? Note that the shear force is noticeably lower than the perpendicular breakaway force. On a painted metal, the element will slide down under a noticeably lighter cargo. Utilizing a rubberized coating can effectively improve the result.

Table 4: Steel thickness (substrate influence) - sheet metal selection
MPL 3x3x3 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.03 kg / 0.07 lbs
34.0 g / 0.3 N
1 mm
25%
 0.09 kg / 0.19 lbs
85.0 g / 0.8 N
2 mm
50%
 0.17 kg / 0.37 lbs
170.0 g / 1.7 N
3 mm
75%
 0.26 kg / 0.56 lbs
255.0 g / 2.5 N
5 mm
100%
 0.34 kg / 0.75 lbs
340.0 g / 3.3 N
10 mm
100%
 0.34 kg / 0.75 lbs
340.0 g / 3.3 N
11 mm
100%
 0.34 kg / 0.75 lbs
340.0 g / 3.3 N
12 mm
100%
 0.34 kg / 0.75 lbs
340.0 g / 3.3 N
A thin metal plate cannot conduct the entire magnetic field, which squanders power of the holder. Should you install a neodymium to a thin surface, the magnetism will pass right through and the holding will be smaller. To squeeze full efficiency of this magnet's power, you need a suitably thick piece of steel. The material oversaturation causes that on thin elements (e.g., car bodies), the magnet works worse. We suggest choosing the steel cross-section from these parameters.

Table 5: Working in heat (stability) - thermal limit
MPL 3x3x3 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 0.34 kg / 0.75 lbs
340.0 g / 3.3 N
 OK
40 °C -2.2% 0.33 kg / 0.73 lbs
332.5 g / 3.3 N
 OK
60 °C -4.4% 0.33 kg / 0.72 lbs
325.0 g / 3.2 N
 OK
80 °C -6.6% 0.32 kg / 0.70 lbs
317.6 g / 3.1 N
100 °C -28.8% 0.24 kg / 0.53 lbs
242.1 g / 2.4 N
Classic neodymiums change their properties parameters after exceeding the maximum temperature. Watch out for overheating – excessive heat can irreversibly demagnetize this product. With increasing heat, the magnet's capacity temporarily drops. Avoid using this product close to ovens exceeding its safe range. Too high temperature will lead to destruction of magnetic properties.
*Engineering note: Temperature resistance is determined by both grade, as well as the dimension ratios. Flat magnets (pancake types) are more susceptible to demagnetization under lower heat stress than taller cylinders. Red status in the table signals permanent field degradation for this specific geometry.

Table 6: Magnet-Magnet interaction (attraction) - field collision
MPL 3x3x3 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 1.60 kg / 3.53 lbs
5 931 Gs
0.24 kg / 0.53 lbs
240 g / 2.4 N
 N/A
1 mm 0.80 kg / 1.77 lbs
7 610 Gs
0.12 kg / 0.27 lbs
120 g / 1.2 N
 0.72 kg / 1.59 lbs
~0 Gs
2 mm 0.36 kg / 0.78 lbs
5 061 Gs
0.05 kg / 0.12 lbs
53 g / 0.5 N
 0.32 kg / 0.70 lbs
~0 Gs
3 mm 0.15 kg / 0.34 lbs
3 343 Gs
0.02 kg / 0.05 lbs
23 g / 0.2 N
 0.14 kg / 0.31 lbs
~0 Gs
5 mm 0.03 kg / 0.08 lbs
1 568 Gs
0.01 kg / 0.01 lbs
5 g / 0.1 N
 0.03 kg / 0.07 lbs
~0 Gs
10 mm 0.00 kg / 0.00 lbs
384 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
20 mm 0.00 kg / 0.00 lbs
70 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
50 mm 0.00 kg / 0.00 lbs
6 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
60 mm 0.00 kg / 0.00 lbs
3 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
2 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
1 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
1 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
1 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 magnet and sheet combination. The setup of two magnets generates a stronger field and a larger range of action. Planning to create a powerful holder? Use a pair of magnets instead of one magnet and a striker plate. Remember that when bringing together two magnets, the pinch force is huge. The repulsion force is slightly lower than the connection force, but still impressive.
*Flux density in repulsion mode drops to ~0 Gs at the midpoint of the gap (caused by magnetic field nullification).
Note: Estimates refer to sliding force of dual identical neodymium magnets (friction coefficient ~0.15 for Ni-Ni plating).

Table 7: Hazards (electronics) - precautionary measures
MPL 3x3x3 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 2.5 cm
Hearing aid 10 Gs (1.0 mT) 2.0 cm
Timepiece 20 Gs (2.0 mT) 1.5 cm
Phone / Smartphone 40 Gs (4.0 mT) 1.0 cm
Remote 50 Gs (5.0 mT) 1.0 cm
Payment card 400 Gs (40.0 mT) 0.5 cm
HDD hard drive 600 Gs (60.0 mT) 0.5 cm
A strong magnetic field poses a serious hazard to electronic devices and pacemakers. These NdFeB products generate a flux that prevents correct functioning of sensitive medical devices. Notice: the unseen radiation penetrates the body and housings. Special caution must be exercised by people with hearing aids and drug dispensers. The risk also applies to: automatic timepieces, remotes, membranes, and screens. Avoid contact with magnetic cards, HDD media, or sensitive navigation tools.

Table 8: Dynamics (kinetic energy) - warning
MPL 3x3x3 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 41.58 km/h
(11.55 m/s)
 0.01 J
30 mm 72.02 km/h
(20.01 m/s)
 0.04 J
50 mm 92.98 km/h
(25.83 m/s)
 0.07 J
100 mm 131.49 km/h
(36.53 m/s)
 0.13 J
Magnetic elements are very brittle – a strong collision with metal risks their cracking. Watch the impact speed – a neodymium left loose turns into a projectile. Impact energy can destroy the magnet or injury to skin. Be sure to control the product during bringing near metal so it doesn't hit with great force against the steel surface. A collision at high speed almost guarantees destruction of the neodymium. Wear eye protection when playing with large magnets.

Table 9: Surface protection spec
MPL 3x3x3 / 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 (Flux)
MPL 3x3x3 / N38

Parameter Value SI Unit / Description
Magnetic Flux 495 Mx 5.0 µWb
Pc Coefficient 0.84 High (Stable)
Total magnetic flux passing through the magnet pole. Essential parameter in coil applications and motors. The Pc coefficient defines the magnet's operating point.

Table 11: Submerged application
MPL 3x3x3 / N38

Environment Effective steel pull Effect
Air (land) 0.34 kg Standard
Water (riverbed) 0.39 kg
(+0.05 kg buoyancy gain)
+14.5%
Rust risk: 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. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.
1. Vertical hold

*Warning: On a vertical surface, the magnet holds only a fraction of its perpendicular strength.

2. Plate thickness effect

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

3. Thermal stability

*For N38 material, the max working temp is 80°C.

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.84

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

Technical specification and ecology
Material specification
iron (Fe) 64% – 68%
neodymium (Nd) 29% – 32%
boron (B) 1.1% – 1.2%
dysprosium (Dy) 0.5% – 2.0%
coating (Ni-Cu-Ni) < 0.05%
Sustainability
recyclability (EoL) 100%
recycled raw materials ~10% (pre-cons)
carbon footprint low / zredukowany
waste code (EWC) 16 02 16
Safety card (GPSR)
responsible entity
Dhit sp. z o.o.
ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki
tel: +48 22 499 98 98 | e-mail: bok@dhit.pl
batch number/type
id: 020148-2026
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Model MPL 3x3x3 / N38 features a low profile and professional pulling force, making it a perfect solution for building separators and machines. As a block magnet with high power (approx. 0.34 kg), this product is available off-the-shelf from our warehouse in Poland. Furthermore, its Ni-Cu-Ni coating secures 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 3x3x3 / 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 3x3x3 / N38 are the foundation for many industrial devices, such as magnetic separators and linear motors. Thanks to the flat surface and high force (approx. 0.34 kg), they are ideal as closers in furniture making and mounting elements in automation. Their rectangular shape facilitates precise gluing into milled sockets in wood or plastic.
For mounting flat magnets MPL 3x3x3 / N38, we recommend utilizing strong epoxy glues (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. 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 3x3x3 / N38 model is magnetized axially (dimension 3 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 (3x3 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: 3 mm (length), 3 mm (width), and 3 mm (thickness). The key parameter here is the lifting capacity amounting to approximately 0.34 kg (force ~3.37 N), which, with such a compact shape, proves the high grade of the material. The product meets the standards for N38 grade magnets.

Strengths and weaknesses of neodymium magnets.

Benefits

Besides their stability, neodymium magnets are valued for these benefits:
  • They have stable power, and over more than 10 years their performance decreases symbolically – ~1% (according to theory),
  • They retain their magnetic properties even under external field action,
  • Thanks to the reflective finish, the coating of Ni-Cu-Ni, gold, or silver gives an professional appearance,
  • Magnets are characterized by extremely high magnetic induction on the working surface,
  • Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and are able to act (depending on the form) even at a temperature of 230°C or more...
  • Due to the option of precise forming and customization to specialized needs, magnetic components can be produced in a wide range of shapes and sizes, which increases their versatility,
  • Fundamental importance in future technologies – they serve a role in HDD drives, brushless drives, medical devices, and technologically advanced constructions.
  • Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Limitations

Cons of neodymium magnets: application proposals
  • They are fragile upon too strong impacts. To avoid cracks, it is worth securing magnets in special housings. Such protection not only protects 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 strength 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 recommend using waterproof magnets made of rubber, plastic or other material resistant to moisture, when using outdoors
  • We suggest cover - magnetic mount, due to difficulties in creating threads inside the magnet and complicated shapes.
  • Health risk related to microscopic parts of magnets are risky, in case of ingestion, which gains importance in the context of child safety. Furthermore, tiny parts of these devices can complicate diagnosis medical when they are in the body.
  • High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which increases costs of application in large quantities

Lifting parameters

Maximum lifting capacity of the magnet – what affects it?

Information about lifting capacity was determined for ideal contact conditions, taking into account:
  • with the contact of a yoke made of low-carbon steel, guaranteeing full magnetic saturation
  • possessing a massiveness of at least 10 mm to avoid saturation
  • with a plane perfectly flat
  • with total lack of distance (without coatings)
  • under axial force direction (90-degree angle)
  • at room temperature

Key elements affecting lifting force

Please note that the working load will differ subject to elements below, starting with the most relevant:
  • Gap between surfaces – every millimeter of distance (caused e.g. by varnish or dirt) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
  • Load vector – maximum parameter is available only during perpendicular pulling. The resistance to sliding of the magnet along the surface is typically many times lower (approx. 1/5 of the lifting capacity).
  • Element thickness – for full efficiency, the steel must be sufficiently thick. Paper-thin metal limits the lifting capacity (the magnet "punches through" it).
  • Plate material – low-carbon steel gives the best results. Higher carbon content reduce magnetic properties and holding force.
  • Surface finish – ideal contact is obtained only on smooth steel. Rough texture reduce the real contact area, weakening the magnet.
  • Temperature – heating the magnet causes a temporary drop of force. Check the maximum operating temperature for a given model.

Holding force was measured on the plate surface of 20 mm thickness, when a perpendicular force was applied, whereas under attempts to slide the magnet the load capacity is reduced by as much as 75%. In addition, even a slight gap between the magnet and the plate lowers the lifting capacity.

H&S for magnets
Nickel coating and allergies

Nickel alert: The Ni-Cu-Ni coating contains nickel. If an allergic reaction occurs, cease working with magnets and use protective gear.

Medical implants

Medical warning: Neodymium magnets can turn off pacemakers and defibrillators. Stay away if you have electronic implants.

Hand protection

Big blocks can crush fingers in a fraction of a second. Do not place your hand between two attracting surfaces.

Do not underestimate power

Handle with care. Neodymium magnets act from a long distance and snap with huge force, often faster than you can move away.

Precision electronics

Navigation devices and smartphones are highly sensitive to magnetic fields. Direct contact with a strong magnet can ruin the sensors in your phone.

Operating temperature

Regular neodymium magnets (grade N) lose magnetization when the temperature surpasses 80°C. The loss of strength is permanent.

Eye protection

Despite metallic appearance, neodymium is delicate and not impact-resistant. Do not hit, as the magnet may crumble into sharp, dangerous pieces.

Electronic devices

Intense magnetic fields can corrupt files on payment cards, HDDs, and other magnetic media. Keep a distance of at least 10 cm.

Do not drill into magnets

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

Choking Hazard

Absolutely keep magnets away from children. Ingestion danger is high, and the effects of magnets connecting inside the body are fatal.

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