← previous
next →
Product available Ships today (order by 14:00)

MPL 50x20x5 / N38 - lamellar magnet

lamellar magnet

Catalog no 020473

GTIN/EAN: 5906301811930

5.00

length

50 mm [±0,1 mm]

Width

20 mm [±0,1 mm]

Height

5 mm [±0,1 mm]

Weight

37.5 g

Magnetization Direction

↑ axial

Load capacity

12.69 kg / 124.48 N

Magnetic Induction

197.73 mT / 1977 Gs

Coating

[NiCuNi] Nickel

technical specifications »

14.56 ZŁ with VAT / pcs + price for transport

11.84 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?
price from 1 pcs
11.84 ZŁ
14.56 ZŁ
price from 60 pcs
11.13 ZŁ
13.69 ZŁ
price from 220 pcs
10.42 ZŁ
12.82 ZŁ
Carbon Footprint – environmental impact GPSR Regulation – product safety
Not sure about your choice?

Call us now +48 22 499 98 98 or drop us a message using form our website.
Strength and shape of a magnet can be tested with our magnetic calculator.

Same-day shipping for orders placed before 14:00.

Technical of the product - MPL 50x20x5 / N38 - lamellar magnet

Specification / characteristics - MPL 50x20x5 / N38 - lamellar magnet

properties
properties values
Cat. no. 020473
GTIN/EAN 5906301811930
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 50 mm [±0,1 mm]
Width 20 mm [±0,1 mm]
Height 5 mm [±0,1 mm]
Weight 37.5 g
Magnetization Direction ↑ axial
Load capacity ~ ? 12.69 kg / 124.48 N
Magnetic Induction ~ ? 197.73 mT / 1977 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 50x20x5 / 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 analysis of the assembly - report

The following data represent the outcome of a physical calculation. Values are based on models for the material Nd2Fe14B. Actual performance might slightly differ from theoretical values. Treat these calculations as a reference point during assembly planning.

Table 1: Static force (force vs gap) - power drop
MPL 50x20x5 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 1977 Gs
197.7 mT
 12.69 kg / 27.98 pounds
12690.0 g / 124.5 N
 dangerous!
1 mm 1885 Gs
188.5 mT
 11.53 kg / 25.42 pounds
11530.3 g / 113.1 N
 dangerous!
2 mm 1772 Gs
177.2 mT
 10.20 kg / 22.49 pounds
10199.9 g / 100.1 N
 dangerous!
3 mm 1649 Gs
164.9 mT
 8.83 kg / 19.47 pounds
8831.3 g / 86.6 N
 medium risk
5 mm 1395 Gs
139.5 mT
 6.32 kg / 13.93 pounds
6320.3 g / 62.0 N
 medium risk
10 mm 870 Gs
87.0 mT
 2.46 kg / 5.42 pounds
2459.4 g / 24.1 N
 medium risk
15 mm 549 Gs
54.9 mT
 0.98 kg / 2.15 pounds
976.9 g / 9.6 N
 safe
20 mm 359 Gs
35.9 mT
 0.42 kg / 0.92 pounds
418.9 g / 4.1 N
 safe
30 mm 172 Gs
17.2 mT
 0.10 kg / 0.21 pounds
95.7 g / 0.9 N
 safe
50 mm 54 Gs
5.4 mT
 0.01 kg / 0.02 pounds
9.5 g / 0.1 N
 safe
Grip strength decreases drastically per each millimeter of spacing. Keep in mind that every additional insulation layer (e.g., contamination, paint, veneer) noticeably reduces the pull force. Magnets work optimally during direct contact; air break nullifies the power. Observe how rapidly the load capacity drop, when the magnet does not adhere tightly to the metal substrate. When designing the assembly, discard additional spacers.

Table 2: Sliding load (wall)
MPL 50x20x5 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 2.54 kg / 5.60 pounds
2538.0 g / 24.9 N
1 mm Stal (~0.2) 2.31 kg / 5.08 pounds
2306.0 g / 22.6 N
2 mm Stal (~0.2) 2.04 kg / 4.50 pounds
2040.0 g / 20.0 N
3 mm Stal (~0.2) 1.77 kg / 3.89 pounds
1766.0 g / 17.3 N
5 mm Stal (~0.2) 1.26 kg / 2.79 pounds
1264.0 g / 12.4 N
10 mm Stal (~0.2) 0.49 kg / 1.08 pounds
492.0 g / 4.8 N
15 mm Stal (~0.2) 0.20 kg / 0.43 pounds
196.0 g / 1.9 N
20 mm Stal (~0.2) 0.08 kg / 0.19 pounds
84.0 g / 0.8 N
30 mm Stal (~0.2) 0.02 kg / 0.04 pounds
20.0 g / 0.2 N
50 mm Stal (~0.2) 0.00 kg / 0.00 pounds
2.0 g / 0.0 N
The table below shows the approximate force required to initiate the sliding of the magnet down against a vertical steel plate (considering typical friction coefficient). The holding force is a function of the distance between the magnet and the metal.

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MPL 50x20x5 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
3.81 kg / 8.39 pounds
3807.0 g / 37.3 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
2.54 kg / 5.60 pounds
2538.0 g / 24.9 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
1.27 kg / 2.80 pounds
1269.0 g / 12.4 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
6.35 kg / 13.99 pounds
6345.0 g / 62.2 N
When placing a element on a vertical plane (e.g., a fridge), it will only hold just about 20%-30% of its maximum pull force. Gravity as well as a low friction coefficient influence the fact that holders slip faster than they pop off the substrate. Planning a hanger? Remember that the shear force is significantly lower than the perpendicular breakaway force. On a slippery surface, the element will give way down under a significantly smaller weight. Using a rubber pad can significantly raise the stability.

Table 4: Material efficiency (substrate influence) - power losses
MPL 50x20x5 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
5%
 0.63 kg / 1.40 pounds
634.5 g / 6.2 N
1 mm
13%
 1.59 kg / 3.50 pounds
1586.3 g / 15.6 N
2 mm
25%
 3.17 kg / 6.99 pounds
3172.5 g / 31.1 N
3 mm
38%
 4.76 kg / 10.49 pounds
4758.8 g / 46.7 N
5 mm
63%
 7.93 kg / 17.49 pounds
7931.2 g / 77.8 N
10 mm
100%
 12.69 kg / 27.98 pounds
12690.0 g / 124.5 N
11 mm
100%
 12.69 kg / 27.98 pounds
12690.0 g / 124.5 N
12 mm
100%
 12.69 kg / 27.98 pounds
12690.0 g / 124.5 N
A thin metal plate is unable to absorb the full magnetic flux, which wastes potential of the magnet. Should you mount a strong magnet to a weak sheet, the field will penetrate right through and the pull force will drop sharply. To achieve 100% of this neodymium's power, you need a suitably thick piece of steel. The saturation effect means that on sheet metal structures (e.g., thin profiles), the magnet shows lower pull force. We suggest choosing the steel dimension based on the following data.

Table 5: Thermal resistance (stability) - thermal limit
MPL 50x20x5 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 12.69 kg / 27.98 pounds
12690.0 g / 124.5 N
 OK
40 °C -2.2% 12.41 kg / 27.36 pounds
12410.8 g / 121.8 N
 OK
60 °C -4.4% 12.13 kg / 26.75 pounds
12131.6 g / 119.0 N
80 °C -6.6% 11.85 kg / 26.13 pounds
11852.5 g / 116.3 N
100 °C -28.8% 9.04 kg / 19.92 pounds
9035.3 g / 88.6 N
Standard neodymium magnets change their properties strength above the temperature limit. Protect against heat – excessive heat can permanently damage this magnet. With increasing heat, the magnet's force briefly lowers. Avoid using this product near heat sources exceeding its working range. Exceeding the critical threshold will cause permanent loss of magnetic properties.
*Engineering note: Thermal stability depends not only on the material grade, as well as the dimension ratios. Thin magnets (low permeance coefficient) risk losing magnetic properties under lower heat stress than long magnets. Red status in the table signals permanent field degradation for this specific geometry.

Table 6: Two magnets (attraction) - field collision
MPL 50x20x5 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Strength (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 24.10 kg / 53.12 pounds
3 371 Gs
3.61 kg / 7.97 pounds
3614 g / 35.5 N
 N/A
1 mm 23.06 kg / 50.84 pounds
3 868 Gs
3.46 kg / 7.63 pounds
3459 g / 33.9 N
 20.75 kg / 45.75 pounds
~0 Gs
2 mm 21.89 kg / 48.27 pounds
3 769 Gs
3.28 kg / 7.24 pounds
3284 g / 32.2 N
 19.71 kg / 43.44 pounds
~0 Gs
3 mm 20.65 kg / 45.53 pounds
3 661 Gs
3.10 kg / 6.83 pounds
3098 g / 30.4 N
 18.59 kg / 40.98 pounds
~0 Gs
5 mm 18.07 kg / 39.83 pounds
3 424 Gs
2.71 kg / 5.97 pounds
2710 g / 26.6 N
 16.26 kg / 35.84 pounds
~0 Gs
10 mm 12.00 kg / 26.46 pounds
2 790 Gs
1.80 kg / 3.97 pounds
1800 g / 17.7 N
 10.80 kg / 23.81 pounds
~0 Gs
20 mm 4.67 kg / 10.30 pounds
1 741 Gs
0.70 kg / 1.54 pounds
701 g / 6.9 N
 4.20 kg / 9.27 pounds
~0 Gs
50 mm 0.37 kg / 0.81 pounds
488 Gs
0.06 kg / 0.12 pounds
55 g / 0.5 N
 0.33 kg / 0.73 pounds
~0 Gs
60 mm 0.18 kg / 0.40 pounds
343 Gs
0.03 kg / 0.06 pounds
27 g / 0.3 N
 0.16 kg / 0.36 pounds
~0 Gs
70 mm 0.10 kg / 0.21 pounds
248 Gs
0.01 kg / 0.03 pounds
14 g / 0.1 N
 0.09 kg / 0.19 pounds
~0 Gs
80 mm 0.05 kg / 0.12 pounds
184 Gs
0.01 kg / 0.02 pounds
8 g / 0.1 N
 0.05 kg / 0.10 pounds
~0 Gs
90 mm 0.03 kg / 0.07 pounds
140 Gs
0.00 kg / 0.01 pounds
5 g / 0.0 N
 0.03 kg / 0.06 pounds
~0 Gs
100 mm 0.02 kg / 0.04 pounds
108 Gs
0.00 kg / 0.01 pounds
3 g / 0.0 N
 0.02 kg / 0.04 pounds
~0 Gs
Two magnetic products interact from a much further distance than a neodymium and metal combination. The setup of magnet-to-magnet creates a more powerful interaction and a further horizon of operation. Planning to create a strong closure? Utilize two neodymiums instead of one magnet and a striker plate. Exercise caution that when attracting two neodymiums, the impact force is massive. The repulsion force is marginally weaker than the attraction, but still large.
*Flux density in repulsion mode drops to ~0 Gs in the exact middle between the magnets (due to field cancellation).
Attention: Figures refer to shear force of dual same magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Safety (HSE) (implants) - warnings
MPL 50x20x5 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 12.5 cm
Hearing aid 10 Gs (1.0 mT) 9.5 cm
Timepiece 20 Gs (2.0 mT) 7.5 cm
Phone / Smartphone 40 Gs (4.0 mT) 6.0 cm
Car key 50 Gs (5.0 mT) 5.5 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 and medical implants. These magnets generate a flux that destroys function of digital equipment. Remember: the invisible magnetic field penetrates the body and glass. Special caution must be taken by people with hearing aids 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: Impact energy (kinetic energy) - collision effects
MPL 50x20x5 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 20.68 km/h
(5.74 m/s)
 0.62 J
30 mm 32.28 km/h
(8.97 m/s)
 1.51 J
50 mm 41.50 km/h
(11.53 m/s)
 2.49 J
100 mm 58.67 km/h
(16.30 m/s)
 4.98 J
Neodymium magnets are very brittle – a collision with steel causes immediate chipping. Watch the impact speed – a neodymium left loose speeds with massive force. Kinetic force can cause material chips or painful pinches to skin. Always hold the magnet during installation so it doesn't slam with momentum against the steel surface. A collision at high speed means shattering of the magnet. Wear eye protection when handling with large magnets.

Table 9: Corrosion resistance
MPL 50x20x5 / 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 50x20x5 / N38

Parameter Value SI Unit / Description
Magnetic Flux 20 792 Mx 207.9 µWb
Pc Coefficient 0.21 Low (Flat)
Flux value passing through the pole surface. Essential parameter for generator designers and motors. The Pc coefficient defines the magnet's operating point.

Table 11: Physics of underwater searching
MPL 50x20x5 / N38

Environment Effective steel pull Effect
Air (land) 12.69 kg Standard
Water (riverbed) 14.53 kg
(+1.84 kg buoyancy gain)
+14.5%
Warning: Remember to wipe the magnet thoroughly after removing it from water and apply a protective layer (e.g., oil) to avoid corrosion.
In water, the magnet feels stronger thanks to Archimedes' principle. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.
1. Wall mount (shear)

*Caution: On a vertical wall, the magnet holds just ~20% of its perpendicular strength.

2. Plate thickness effect

*Thin steel (e.g. computer case) severely limits the holding force.

3. Temperature resistance

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

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.21

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
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%
Environmental data
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: 020473-2026
Magnet Unit Converter
Force (pull)
Magnetic Field
Type data into any field, and all other values change on the fly.

Check out also proposals

MW 40x8 / N38 - cylindrical magnet
Product available Ships today (order by 14:00)

MW 40x8 / N38 - cylindrical magnet

31.27 ZŁ brutto / pcs
MW 4x6 / N38 - cylindrical magnet
Product available Ships today (order by 14:00)

MW 4x6 / N38 - cylindrical magnet

0.381 ZŁ brutto / pcs
MW 16x9 / N38 - cylindrical magnet
Product available Ships today (order by 14:00)

MW 16x9 / N38 - cylindrical magnet

7.36 ZŁ brutto / pcs
XT-5 magnetyzery do silników - DIESEL + olej - XT-5 magnetizer
Product available Ships today (order by 14:00)

XT-5 magnetyzery do silników - DIESEL + olej - XT-5 magnetizer

98.99 ZŁ brutto / pcs
Component MPL 50x20x5 / N38 features a low profile and industrial pulling force, making it a perfect solution for building separators and machines. As a magnetic bar with high power (approx. 12.69 kg), this product is available off-the-shelf 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 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 50x20x5 / 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 50x20x5 / N38 are the foundation for many industrial devices, such as filters catching filings and linear motors. Thanks to the flat surface and high force (approx. 12.69 kg), they are ideal as hidden locks in furniture making and mounting elements in automation. Their rectangular shape facilitates precise gluing into milled sockets in wood or plastic.
Cyanoacrylate glues (super glue type) are good only for small magnets; for larger plates, we recommend resins. For lighter applications or mounting on smooth surfaces, branded foam tape (e.g., 3M VHB) will work, provided the surface is perfectly degreased. Avoid chemically aggressive glues or hot glue, which can demagnetize neodymium (above 80°C).
Standardly, the MPL 50x20x5 / N38 model is magnetized through the thickness (dimension 5 mm), which means that the N and S poles are located on its largest, flat surfaces. Thanks to this, it works best when "sticking" to sheet metal or another magnet with a large surface area. Such a pole arrangement ensures maximum holding capacity when pressing against the sheet, creating a closed magnetic circuit.
The presented product is a neodymium magnet with precisely defined parameters: 50 mm (length), 20 mm (width), and 5 mm (thickness). It is a magnetic block with dimensions 50x20x5 mm and a self-weight of 37.5 g, ready to work at temperatures up to 80°C. The product meets the standards for N38 grade magnets.

Pros and cons of Nd2Fe14B magnets.

Strengths

Apart from their notable magnetic energy, neodymium magnets have these key benefits:
  • They do not lose magnetism, even over approximately 10 years – the reduction in strength is only ~1% (based on measurements),
  • Neodymium magnets are distinguished by exceptionally resistant to loss of magnetic properties caused by external magnetic fields,
  • In other words, due to the smooth surface of silver, the element gains visual value,
  • They show high magnetic induction at the operating surface, which increases their power,
  • Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
  • Possibility of detailed modeling as well as adjusting to complex needs,
  • Universal use in future technologies – they are utilized in hard drives, drive modules, medical equipment, also complex engineering applications.
  • Compactness – despite small sizes they generate large force, making them ideal for precision applications

Weaknesses

Disadvantages of NdFeB magnets:
  • Brittleness is one of their disadvantages. Upon intense impact they can fracture. We recommend keeping them in a steel housing, which not only secures them against impacts but also increases their durability
  • Neodymium magnets decrease their power under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
  • They rust in a humid environment - during use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
  • Limited ability of creating nuts in the magnet and complex forms - preferred is cover - magnet mounting.
  • Possible danger to health – tiny shards of magnets are risky, in case of ingestion, which gains importance in the context of child health protection. Furthermore, small elements of these products are able to be problematic in diagnostics medical when they are in the body.
  • Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Pull force analysis

Breakaway strength of the magnet in ideal conditions – what it depends on?

Magnet power was determined for the most favorable conditions, including:
  • using a sheet made of mild steel, serving as a magnetic yoke
  • with a cross-section minimum 10 mm
  • characterized by lack of roughness
  • without any clearance between the magnet and steel
  • during detachment in a direction perpendicular to the mounting surface
  • at standard ambient temperature

What influences lifting capacity in practice

Bear in mind that the magnet holding may be lower influenced by the following factors, starting with the most relevant:
  • Distance – existence of foreign body (rust, tape, air) acts as an insulator, which lowers power rapidly (even by 50% at 0.5 mm).
  • Force direction – declared lifting capacity refers to detachment vertically. When attempting to slide, the magnet holds significantly lower power (typically approx. 20-30% of maximum force).
  • Base massiveness – too thin plate does not accept the full field, causing part of the power to be lost into the air.
  • Chemical composition of the base – mild steel gives the best results. Higher carbon content reduce magnetic permeability and holding force.
  • Surface condition – ground elements ensure maximum contact, which improves field saturation. Rough surfaces reduce efficiency.
  • Temperature influence – hot environment reduces pulling force. Exceeding the limit temperature can permanently damage the magnet.

Lifting capacity testing was conducted on a smooth plate of suitable thickness, under perpendicular forces, whereas under parallel forces the holding force is lower. In addition, even a small distance between the magnet’s surface and the plate reduces the load capacity.

H&S for magnets
Bone fractures

Pinching hazard: The attraction force is so immense that it can result in hematomas, crushing, and even bone fractures. Use thick gloves.

No play value

Always keep magnets out of reach of children. Ingestion danger is high, and the effects of magnets clamping inside the body are fatal.

Power loss in heat

Standard neodymium magnets (grade N) lose power when the temperature goes above 80°C. Damage is permanent.

Respect the power

Before use, check safety instructions. Uncontrolled attraction can break the magnet or injure your hand. Be predictive.

Allergy Warning

A percentage of the population have a contact allergy to nickel, which is the common plating for NdFeB magnets. Frequent touching might lead to skin redness. We suggest wear safety gloves.

GPS and phone interference

A strong magnetic field negatively affects the operation of magnetometers in phones and navigation systems. Do not bring magnets close to a smartphone to prevent damaging the sensors.

Fire warning

Dust created during grinding of magnets is combustible. Do not drill into magnets unless you are an expert.

Protective goggles

Despite metallic appearance, the material is brittle and cannot withstand shocks. Do not hit, as the magnet may shatter into sharp, dangerous pieces.

Data carriers

Do not bring magnets near a wallet, laptop, or TV. The magnetic field can irreversibly ruin these devices and erase data from cards.

Medical implants

For implant holders: Powerful magnets affect electronics. Keep minimum 30 cm distance or request help to handle the magnets.

Caution! Details about hazards in the article: Safety of working with magnets.