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MPL 80x20x10 / N38 - lamellar magnet

lamellar magnet

Catalog no 020586

GTIN/EAN: 5906301815792

Load capacity 47.40 kg / 464.84 N Magnetic Induction 321.49 mT / 3215 Gs
length
80 mm [±0,1 mm]
Width
20 mm [±0,1 mm]
Height
10 mm [±0,1 mm]
Weight
120 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

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44.65 zł net / pcs

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Frequently asked questions

What pull rating should I choose for a workshop block magnet?
A catalogue pull rating is measured under stated test conditions. A painted or thin steel surface, a gap or a load acting along the surface can reduce the practical grip. Choose a margin based on the actual installation and read the product card.
Are block neodymium magnets available in more durable versions?
Sintered NdFeB is brittle and can corrode if its coating is damaged. Check the coating and operating-temperature limit of the selected product. A housing may help protect a magnet in an application exposed to impacts.
How should I choose block magnets for mounting a structure?
First check the steel grade and thickness, then any gap created by paint or dirt, and finally the direction of the applied load. Compare these conditions with the specifications of the selected magnet; do not rely on grade alone.

Guides from the knowledge base

Engineering report for this magnet

Full PDF analysis: pull and shear force, effect of distance, temperature and plate thickness, safety distances and the demagnetization curve.

PDF report Calculator
Want to talk magnets?

Call us now +48 888 99 98 98 alternatively let us know using contact form the contact section.
Specifications and structure of a neodymium magnet can be estimated using our power calculator.

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Technical data - MPL 80x20x10 / N38 - lamellar magnet

Specification / characteristics - MPL 80x20x10 / N38 - lamellar magnet

properties
properties values
Cat. no. 020586
GTIN/EAN 5906301815792
Distributor Dhit sp. z o.o.
Country of origin Poland / China / Germany
Customs code 85059029
length 80 mm [±0,1 mm]
Width 20 mm [±0,1 mm]
Height 10 mm [±0,1 mm]
Weight 120 g
Magnetization Direction ↑ axial
Load capacity ~ ? 47.40 kg / 464.84 N
Magnetic Induction ~ ? 321.49 mT / 3215 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 80x20x10 / N38 - lamellar magnet
properties values units
Remanence Br ? 12.2-12.6 kGs
Remanence Br ? 1220-1260 mT
Coercivity bHc ? 10.8-11.5 kOe
Coercivity bHc ? 860-915 kA/m
Intrinsic coercivity iHc ≥ 12 kOe
Intrinsic coercivity iHc ≥ 955 kA/m
Energy product BHmax ? 36-38 BH max MGOe
Energy product BHmax ? 287-303 BH max KJ/m
Maximum working 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

Physical simulation of the assembly - data

These information constitute the result of a mathematical calculation. Values are based on algorithms for the class Nd2Fe14B. Operational conditions may differ. Please consider these calculations as a reference point during assembly planning.

Table 1: Static force (force vs gap) - characteristics
MPL 80x20x10 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 3214 Gs
321.4 mT
 47.40 kg / 104.50 lbs
47400.0 g / 465.0 N
 crushing
1 mm 3009 Gs
300.9 mT
 41.54 kg / 91.58 lbs
41538.8 g / 407.5 N
 crushing
2 mm 2791 Gs
279.1 mT
 35.75 kg / 78.81 lbs
35746.4 g / 350.7 N
 crushing
3 mm 2572 Gs
257.2 mT
 30.35 kg / 66.91 lbs
30348.6 g / 297.7 N
 crushing
5 mm 2154 Gs
215.4 mT
 21.29 kg / 46.95 lbs
21294.4 g / 208.9 N
 crushing
10 mm 1360 Gs
136.0 mT
 8.48 kg / 18.70 lbs
8480.9 g / 83.2 N
 medium risk
15 mm 891 Gs
89.1 mT
 3.64 kg / 8.03 lbs
3642.4 g / 35.7 N
 medium risk
20 mm 615 Gs
61.5 mT
 1.73 kg / 3.82 lbs
1734.1 g / 17.0 N
 safe
30 mm 329 Gs
32.9 mT
 0.50 kg / 1.10 lbs
497.3 g / 4.9 N
 safe
50 mm 124 Gs
12.4 mT
 0.07 kg / 0.16 lbs
70.9 g / 0.7 N
 safe
Grip strength drops sharply with every mm of gap. Keep in mind that every additional insulation layer (e.g., contamination, paint, dust) strongly weakens the grip. Magnets hold strongest during direct contact; gap kills the power. Observe how flashily the pull force fall, when the magnet does not adhere directly to the steel surface. When planning the assembly, discard unnecessary gaps.

Table 2: Sliding hold (wall)
MPL 80x20x10 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Raw steel (µ ≈ 0.2) 9.48 kg / 20.90 lbs
9480.0 g / 93.0 N
1 mm Raw steel (µ ≈ 0.2) 8.31 kg / 18.32 lbs
8308.0 g / 81.5 N
2 mm Raw steel (µ ≈ 0.2) 7.15 kg / 15.76 lbs
7150.0 g / 70.1 N
3 mm Raw steel (µ ≈ 0.2) 6.07 kg / 13.38 lbs
6070.0 g / 59.5 N
5 mm Raw steel (µ ≈ 0.2) 4.26 kg / 9.39 lbs
4258.0 g / 41.8 N
10 mm Raw steel (µ ≈ 0.2) 1.70 kg / 3.74 lbs
1696.0 g / 16.6 N
15 mm Raw steel (µ ≈ 0.2) 0.73 kg / 1.60 lbs
728.0 g / 7.1 N
20 mm Raw steel (µ ≈ 0.2) 0.35 kg / 0.76 lbs
346.0 g / 3.4 N
30 mm Raw steel (µ ≈ 0.2) 0.10 kg / 0.22 lbs
100.0 g / 1.0 N
50 mm Raw steel (µ ≈ 0.2) 0.01 kg / 0.03 lbs
14.0 g / 0.1 N
This section calculates the approximate holding capacity required to start the downward movement of the magnet vertically on a vertical steel wall (considering typical friction). This value depends on the distance between the magnet and the metal.

Table 3: Vertical assembly (sliding) - vertical pull
MPL 80x20x10 / N38

Surface type Friction coefficient / % Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% of nominal force
14.22 kg / 31.35 lbs
14220.0 g / 139.5 N
Painted steel (standard)
µ = 0.2 20% of nominal force
9.48 kg / 20.90 lbs
9480.0 g / 93.0 N
Oily/slippery steel
µ = 0.1 10% of nominal force
4.74 kg / 10.45 lbs
4740.0 g / 46.5 N
Magnet with anti-slip rubber
µ = 0.5 50% of nominal force
23.70 kg / 52.25 lbs
23700.0 g / 232.5 N
When placing a element on a vertical plane (e.g., a board), it you can count on just approx. 1/5 of its nominal power. Gravity as well as a low friction coefficient mean that holders slide down easier than they detach. Want to create a hanger? Consider that the sliding force is noticeably lower than the maximum static pull force. On a slippery surface, the magnet will slide down under a noticeably lighter weight. Application of an anti-slip layer can drastically increase the grip.

Table 4: Material efficiency (substrate influence) - power losses
MPL 80x20x10 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
5%
 2.37 kg / 5.22 lbs
2370.0 g / 23.2 N
1 mm
13%
 5.93 kg / 13.06 lbs
5925.0 g / 58.1 N
2 mm
25%
 11.85 kg / 26.12 lbs
11850.0 g / 116.2 N
3 mm
38%
 17.78 kg / 39.19 lbs
17775.0 g / 174.4 N
5 mm
63%
 29.63 kg / 65.31 lbs
29625.0 g / 290.6 N
10 mm
100%
 47.40 kg / 104.50 lbs
47400.0 g / 465.0 N
11 mm
100%
 47.40 kg / 104.50 lbs
47400.0 g / 465.0 N
12 mm
100%
 47.40 kg / 104.50 lbs
47400.0 g / 465.0 N
A too thin steel is incapable of conduct the entire magnetic field, which squanders power of the magnet. Should you install a neodymium to a thin surface, the field will penetrate right through and the holding will be smaller. To squeeze full efficiency of this magnet's potential, you need a suitably thick backing of steel. The material oversaturation causes that on sheet metal structures (e.g., appliance housings), the product works worse. We advise picking the steel cross-section from these parameters.

Table 5: Working in heat (stability) - power drop
MPL 80x20x10 / N38

Magnet temperature (°C) Force change relative to 20°C Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 47.40 kg / 104.50 lbs
47400.0 g / 465.0 N
 Estimate
40 °C -4.4% 45.34 kg / 99.95 lbs
45337.3 g / 444.8 N
 Estimate
60 °C -8.6% 43.32 kg / 95.51 lbs
43320.6 g / 425.0 N
 Estimate
80 °C -12.8% 41.35 kg / 91.16 lbs
41349.7 g / 405.6 N
 Material limit
100 °C — — Out of range — no model
The table estimates the reversible force change relative to 20°C, assuming a Br coefficient of -0.11%/°C and force proportional to Br². This is a simplified model with unchanged contact and geometry, not a measurement. Above the material limit, neither force nor irreversible magnetization loss is predicted.
The temperature limit comes from this product’s material data. Permissible conditions also depend on geometry and the magnetic circuit. Without B-H curves for the specific grade and temperature, Pc alone does not determine irreversible demagnetization. Values within the material range do not guarantee the allowable temperature of the complete assembly.

Table 6: Magnet-Magnet interaction (attraction) - field range
MPL 80x20x10 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 101.90 kg / 224.66 lbs
4 573 Gs
15.29 kg / 33.70 lbs
15286 g / 150.0 N
 N/A
1 mm 95.68 kg / 210.93 lbs
6 229 Gs
14.35 kg / 31.64 lbs
14352 g / 140.8 N
 86.11 kg / 189.84 lbs
~0 Gs
2 mm 89.30 kg / 196.88 lbs
6 018 Gs
13.40 kg / 29.53 lbs
13395 g / 131.4 N
 80.37 kg / 177.19 lbs
~0 Gs
3 mm 83.00 kg / 182.99 lbs
5 802 Gs
12.45 kg / 27.45 lbs
12450 g / 122.1 N
 74.70 kg / 164.69 lbs
~0 Gs
5 mm 70.91 kg / 156.34 lbs
5 363 Gs
10.64 kg / 23.45 lbs
10637 g / 104.4 N
 63.82 kg / 140.71 lbs
~0 Gs
10 mm 45.78 kg / 100.93 lbs
4 309 Gs
6.87 kg / 15.14 lbs
6867 g / 67.4 N
 41.20 kg / 90.84 lbs
~0 Gs
20 mm 18.23 kg / 40.20 lbs
2 719 Gs
2.73 kg / 6.03 lbs
2735 g / 26.8 N
 16.41 kg / 36.18 lbs
~0 Gs
50 mm 1.93 kg / 4.26 lbs
885 Gs
0.29 kg / 0.64 lbs
290 g / 2.8 N
 1.74 kg / 3.83 lbs
~0 Gs
60 mm 1.07 kg / 2.36 lbs
658 Gs
0.16 kg / 0.35 lbs
160 g / 1.6 N
 0.96 kg / 2.12 lbs
~0 Gs
70 mm 0.62 kg / 1.37 lbs
502 Gs
0.09 kg / 0.21 lbs
93 g / 0.9 N
 0.56 kg / 1.23 lbs
~0 Gs
80 mm 0.38 kg / 0.83 lbs
391 Gs
0.06 kg / 0.12 lbs
57 g / 0.6 N
 0.34 kg / 0.75 lbs
~0 Gs
90 mm 0.24 kg / 0.52 lbs
310 Gs
0.04 kg / 0.08 lbs
35 g / 0.3 N
 0.21 kg / 0.47 lbs
~0 Gs
100 mm 0.15 kg / 0.34 lbs
249 Gs
0.02 kg / 0.05 lbs
23 g / 0.2 N
 0.14 kg / 0.30 lbs
~0 Gs
Two magnets attract each other from a significantly greater distance than a magnet and sheet setup. The setup of magnet-to-magnet produces a massive flux and a further horizon of action. Want to build a strong closure? Apply two magnets instead of a neodymium and a striker plate. Remember that when attracting two neodymiums, the impact force is massive. The levitation is marginally weaker than the attraction, but still large.
*Field value between like poles reaches ~0 Gs at the geometric center of the gap (due to field cancellation).
* Calculations apply to friction force of a pair of same neodymium magnets (friction coefficient ~0.15 for Ni-Ni plating).

Table 7: Axial field levels — not safety zones
MPL 80x20x10 / N38

Field level (Gs) mT Model distance (cm)
< 5 Gs < 0.5 mT 18.0 cm
< 10 Gs < 1.0 mT 14.0 cm
< 20 Gs < 2.0 mT 11.0 cm
< 40 Gs < 4.0 mT 8.5 cm
< 50 Gs < 5.0 mT 7.5 cm
< 400 Gs < 40.0 mT 3.0 cm
< 600 Gs < 60.0 mT 2.5 cm
Reference field levels for a model of one magnet, on its axis in air, with a 5 mm distance step. These are not device immunity limits or safe distances for implants. Do not use this table to assess the safety of a pacemaker, defibrillator or other implant; follow the device manufacturer’s and your clinician’s guidance. Steel and other magnets change the field distribution.

Table 8: Impact energy (kinetic energy) - collision effects
MPL 80x20x10 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 22.41 km/h
(6.22 m/s)
 2.32 J
30 mm 24.69 km/h
(6.86 m/s)
 2.82 J
50 mm 24.87 km/h
(6.91 m/s)
 2.86 J
100 mm 24.91 km/h
(6.92 m/s)
 2.87 J
Neodymium magnets are very brittle – a violent impact against metal risks their cracking. Pay attention to connection velocity – a magnet released freely turns into a projectile. Kinetic force can cause material chips or injury to skin. Be sure to control the product during mounting so it doesn't slam with momentum against the steel surface. A contact at a velocity of dozens of km/h almost guarantees destruction of the neodymium. Wear eye protection when handling with large magnets.

Table 9: Surface protection spec
MPL 80x20x10 / 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. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Electrical data (Pc)
MPL 80x20x10 / N38

Parameter Value SI Unit / Description
Magnetic Flux 45 676 Mx 456.8 µWb
Pc Coefficient 0.31 Low (Flat)
Total magnetic flux passing through the magnet pole. Essential parameter in coil applications as well as sensors. The Pc coefficient defines the working geometry.

Table 11: Submerged application
MPL 80x20x10 / N38

Environment Effective steel pull Effect
Air (land) 47.40 kg Standard
Water (riverbed) 54.27 kg
(+6.87 kg buoyancy gain)
+14.5%
Rust risk: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.
The magnetic field penetrates through water without any losses. 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 surface, the magnet retains merely a fraction of its max power.

2. Steel saturation

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

3. Power loss vs temp

N38: the maximum material working temperature is 80°C. Permitted conditions also depend on the shape and magnetic circuit.

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.31

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.

Engineering data and GPSR

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: 020586-2026
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This product is an extremely strong plate magnet made of NdFeB material, which, with dimensions of 80x20x10 mm and a weight of 120 g, guarantees the highest quality connection. As a block magnet with high power (approx. 47.40 kg), this product is available immediately from our warehouse in Poland. The durable anti-corrosion layer ensures a long lifespan in a dry environment, protecting the core from oxidation.
Separating strong flat magnets requires a technique based on sliding (moving one relative to the other), rather than forceful pulling apart. To separate the MPL 80x20x10 / 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 80x20x10 / N38 are the foundation for many industrial devices, such as magnetic separators and linear motors. They work great as fasteners under tiles, wood, or glass. Their rectangular shape facilitates precise gluing into milled sockets in wood or plastic.
For mounting flat magnets MPL 80x20x10 / N38, we recommend utilizing strong epoxy glues (e.g., UHU Endfest, Distal), which ensure a durable bond with metal or plastic. 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).
The magnetic axis runs through the shortest dimension, which is typical for gripper magnets. In practice, this means that this magnet has the greatest attraction force on its main planes (80x20 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: 80 mm (length), 20 mm (width), and 10 mm (thickness). The key parameter here is the holding force amounting to approximately 47.40 kg (force ~464.84 N), which, with such a compact shape, proves the high power of the material. The protective [NiCuNi] coating secures the magnet against corrosion.

Pros and cons of rare earth magnets.

Benefits

Besides their immense field intensity, neodymium magnets offer the following advantages:
  • They have stable power, and over nearly 10 years their performance decreases symbolically – ~1% (according to theory),
  • They maintain their magnetic properties even under close interference source,
  • By applying a decorative coating of nickel, the element has an nice look,
  • Magnetic induction on the working layer of the magnet turns out to be strong,
  • Through (appropriate) combination of ingredients, they can achieve high thermal strength, allowing for functioning at temperatures reaching 230°C and above...
  • Thanks to modularity in forming and the capacity to modify to individual projects,
  • Wide application in high-tech industry – they are utilized in magnetic memories, brushless drives, advanced medical instruments, and industrial machines.
  • Thanks to their power density, small magnets offer high operating force, with minimal size,

Cons

Cons of neodymium magnets and proposals for their use:
  • At very strong impacts they can crack, therefore we recommend placing them in steel cases. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
  • Do not exceed this material temperature limit: 80°C. Overheating may permanently weaken the magnet.
  • They oxidize in a humid environment. For use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
  • Due to limitations in producing threads and complicated shapes in magnets, we propose using cover - magnetic holder.
  • Potential hazard to health – tiny shards of magnets can be dangerous, if swallowed, which is particularly important in the aspect of protecting the youngest. Furthermore, small elements of these magnets can be problematic in diagnostics medical in case of swallowing.
  • Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Pull force analysis

Best holding force of the magnet in ideal parameters – what it depends on?

Holding force of 47.40 kg is a theoretical maximum value executed under standard conditions:
  • on a block made of structural steel, effectively closing the magnetic field
  • with a cross-section minimum 10 mm
  • with a surface perfectly flat
  • under conditions of gap-free contact (metal-to-metal)
  • for force applied at a right angle (pull-off, not shear)
  • at temperature room level

Lifting capacity in real conditions – factors

Real force impacted by working environment parameters, mainly (from most important):
  • Distance (betwixt the magnet and the metal), as even a microscopic distance (e.g. 0.5 mm) can cause a decrease in lifting capacity by up to 50% (this also applies to varnish, rust or debris).
  • Angle of force application – highest force is obtained only during perpendicular pulling. The force required to slide of the magnet along the surface is usually several times lower (approx. 1/5 of the lifting capacity).
  • Metal thickness – thin material does not allow full use of the magnet. Part of the magnetic field penetrates through instead of generating force.
  • Metal type – different alloys attracts identically. High carbon content weaken the attraction effect.
  • Smoothness – full contact is obtained only on smooth steel. Rough texture create air cushions, reducing force.
  • Thermal factor – high temperature reduces pulling force. Too high temperature can permanently demagnetize the magnet.

Holding force was tested on a smooth steel plate 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 fivefold. Additionally, even a small distance between the magnet and the plate reduces the holding force.

H&S for magnets
Magnet fragility

Despite the nickel coating, neodymium is brittle and not impact-resistant. Do not hit, as the magnet may shatter into sharp, dangerous pieces.

Warning for allergy sufferers

It is widely known that nickel (the usual finish) is a potent allergen. If your skin reacts to metals, avoid direct skin contact and choose coated magnets.

Danger to pacemakers

Warning for patients: Strong magnetic fields disrupt electronics. Maintain at least 30 cm distance or request help to work with the magnets.

Fire warning

Fire warning: Rare earth powder is explosive. Avoid machining magnets in home conditions as this may cause fire.

Serious injuries

Big blocks can smash fingers in a fraction of a second. Do not place your hand between two strong magnets.

Keep away from computers

Avoid bringing magnets near a wallet, computer, or screen. The magnetic field can destroy these devices and erase data from cards.

Powerful field

Before starting, check safety instructions. Uncontrolled attraction can break the magnet or injure your hand. Think ahead.

Precision electronics

GPS units and mobile phones are highly susceptible to magnetism. Close proximity with a powerful NdFeB magnet can permanently damage the internal compass in your phone.

This is not a toy

Strictly keep magnets away from children. Ingestion danger is high, and the effects of magnets connecting inside the body are life-threatening.

Power loss in heat

Do not exceed the maximum operating temperature stated in the specifications of the particular product. The limit depends on the material, geometry and operating arrangement; there is no single threshold for all neodymium magnets. Overheating can permanently weaken a magnet.

Danger! Want to know more? Read our article: Are neodymium magnets dangerous?