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MPL 10x10x4 / N38 - lamellar magnet

lamellar magnet

Catalog no 020112

GTIN/EAN: 5906301811183

5.00
Load capacity 3.10 kg / 30.39 N Magnetic Induction 360.85 mT / 3608 Gs
length
10 mm [±0,1 mm]
Width
10 mm [±0,1 mm]
Height
4 mm [±0,1 mm]
Weight
3 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

see specifications »

1.250 zł net / pcs

1.538 zł with VAT (23% VAT) / pcs

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Frequently asked questions

How much will a block magnet really hold?
The catalogue force is measured in full contact with smooth steel at least 10 mm thick, pulled perpendicular, at about 20 °C. On 1 mm sheet about 50% of that value remains, on 0.5 mm about 25%. Mounted on a vertical wall the realistic figure is 20–30%, because the load is then in shear rather than in tension.
What is the maximum working temperature?
Standard N-series grades up to 80 °C, and N50, N52 and N54 up to 60 °C. Above the maximum working temperature the loss stops being reversible. The Curie temperature, at which magnetic properties are lost completely, is about 310 °C.
What safety factor should I allow?
At least twice the mass of the item, and three to five times for vertical mounting. The margin covers sheet thickness, surface condition, any layer of paint or rust, and vibration.

Guides from the knowledge base

Engineering report for this magnet

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

PDF report Calculator
Want to talk magnets?

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

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Technical specification - MPL 10x10x4 / N38 - lamellar magnet

Specification / characteristics - MPL 10x10x4 / N38 - lamellar magnet

properties
properties values
Cat. no. 020112
GTIN/EAN 5906301811183
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 10 mm [±0,1 mm]
Width 10 mm [±0,1 mm]
Height 4 mm [±0,1 mm]
Weight 3 g
Magnetization Direction ↑ axial
Load capacity ~ ? 3.10 kg / 30.39 N
Magnetic Induction ~ ? 360.85 mT / 3608 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 10x10x4 / 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

Technical analysis of the product - technical parameters

These information constitute the direct effect of a physical simulation. Values were calculated on models for the material Nd2Fe14B. Actual conditions might slightly deviate from the simulation results. Please consider these data as a supplementary guide during assembly planning.

Table 1: Static force (pull vs gap) - characteristics
MPL 10x10x4 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 3606 Gs
360.6 mT
 3.10 kg / 6.83 lbs
3100.0 g / 30.4 N
 warning
1 mm 3035 Gs
303.5 mT
 2.20 kg / 4.84 lbs
2195.5 g / 21.5 N
 warning
2 mm 2436 Gs
243.6 mT
 1.41 kg / 3.12 lbs
1413.8 g / 13.9 N
 safe
3 mm 1900 Gs
190.0 mT
 0.86 kg / 1.90 lbs
860.8 g / 8.4 N
 safe
5 mm 1127 Gs
112.7 mT
 0.30 kg / 0.67 lbs
302.7 g / 3.0 N
 safe
10 mm 347 Gs
34.7 mT
 0.03 kg / 0.06 lbs
28.8 g / 0.3 N
 safe
15 mm 140 Gs
14.0 mT
 0.00 kg / 0.01 lbs
4.6 g / 0.0 N
 safe
20 mm 68 Gs
6.8 mT
 0.00 kg / 0.00 lbs
1.1 g / 0.0 N
 safe
30 mm 23 Gs
2.3 mT
 0.00 kg / 0.00 lbs
0.1 g / 0.0 N
 safe
50 mm 6 Gs
0.6 mT
 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
 safe
Pulling power drops significantly with every mm of distance. Note that even the smallest gap (e.g., dirt, paint, dust) noticeably diminishes the holding power. Neodymiums work most effectively in perfect adhesion; air break nullifies the force. See how quickly the load capacity drop, when the magnet does not touch tightly to the metal substrate. When planning the arrangement, eliminate redundant distances.

Table 2: Sliding capacity (wall)
MPL 10x10x4 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.62 kg / 1.37 lbs
620.0 g / 6.1 N
1 mm Stal (~0.2) 0.44 kg / 0.97 lbs
440.0 g / 4.3 N
2 mm Stal (~0.2) 0.28 kg / 0.62 lbs
282.0 g / 2.8 N
3 mm Stal (~0.2) 0.17 kg / 0.38 lbs
172.0 g / 1.7 N
5 mm Stal (~0.2) 0.06 kg / 0.13 lbs
60.0 g / 0.6 N
10 mm Stal (~0.2) 0.01 kg / 0.01 lbs
6.0 g / 0.1 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 table below calculates the estimated shear load required to start the shifting of the magnet vertically on a upright steel plate (assuming standard friction). This value is relative to the air gap between the magnet and the surface.

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MPL 10x10x4 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.93 kg / 2.05 lbs
930.0 g / 9.1 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.62 kg / 1.37 lbs
620.0 g / 6.1 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.31 kg / 0.68 lbs
310.0 g / 3.0 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
1.55 kg / 3.42 lbs
1550.0 g / 15.2 N
When mounting a holder on a upright plane (e.g., a fridge), it you can count on barely about 20%-30% of its maximum pull force. Gravitational force as well as a weak degree of grip cause that magnets slide down faster than they pop off the substrate. Planning a hanger? Remember that the sliding force is much weaker than the perpendicular breakaway force. On a painted metal, the element will slip down under a significantly smaller load. Application of an anti-slip layer can effectively improve the result.

Table 4: Steel thickness (substrate influence) - power losses
MPL 10x10x4 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.31 kg / 0.68 lbs
310.0 g / 3.0 N
1 mm
25%
 0.78 kg / 1.71 lbs
775.0 g / 7.6 N
2 mm
50%
 1.55 kg / 3.42 lbs
1550.0 g / 15.2 N
3 mm
75%
 2.33 kg / 5.13 lbs
2325.0 g / 22.8 N
5 mm
100%
 3.10 kg / 6.83 lbs
3100.0 g / 30.4 N
10 mm
100%
 3.10 kg / 6.83 lbs
3100.0 g / 30.4 N
11 mm
100%
 3.10 kg / 6.83 lbs
3100.0 g / 30.4 N
12 mm
100%
 3.10 kg / 6.83 lbs
3100.0 g / 30.4 N
A thin metal plate is not enough to conduct the full magnetic flux, which weakens actual performance of the holder. If you attach a powerful product to a thin surface, the field will penetrate right through and the attraction force will be weaker. To utilize full efficiency of this magnet's power, you require a sufficiently solid piece of steel. The saturation effect means that on sheet metal structures (e.g., appliance housings), the magnet works worse. We advise picking the steel thickness based on the following data.

Table 5: Working in heat (stability) - thermal limit
MPL 10x10x4 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 3.10 kg / 6.83 lbs
3100.0 g / 30.4 N
 OK
40 °C -2.2% 3.03 kg / 6.68 lbs
3031.8 g / 29.7 N
 OK
60 °C -4.4% 2.96 kg / 6.53 lbs
2963.6 g / 29.1 N
80 °C -6.6% 2.90 kg / 6.38 lbs
2895.4 g / 28.4 N
100 °C -28.8% 2.21 kg / 4.87 lbs
2207.2 g / 21.7 N
Standard neodymium magnets change their properties parameters after exceeding the maximum temperature. Watch out for overheating – heat can permanently damage this magnet. With increasing heat, the magnet's power momentarily drops. Refrain from using this magnet close to ovens higher than its operating temperature limit. Too high temperature will result in irreversible degradation of magnetism.
*Engineering note: Heat tolerance is determined by both grade, but also on the magnet's shape. Thin magnets (low Pc) are more susceptible to demagnetization at lower temperatures compared to rod magnets. Warning indicator in the table indicates permanent field degradation for this particular item.

Table 6: Magnet-Magnet interaction (attraction) - field range
MPL 10x10x4 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Sliding Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 8.02 kg / 17.68 lbs
5 067 Gs
1.20 kg / 2.65 lbs
1203 g / 11.8 N
 N/A
1 mm 6.85 kg / 15.11 lbs
6 667 Gs
1.03 kg / 2.27 lbs
1028 g / 10.1 N
 6.17 kg / 13.59 lbs
~0 Gs
2 mm 5.68 kg / 12.52 lbs
6 070 Gs
0.85 kg / 1.88 lbs
852 g / 8.4 N
 5.11 kg / 11.27 lbs
~0 Gs
3 mm 4.60 kg / 10.14 lbs
5 463 Gs
0.69 kg / 1.52 lbs
690 g / 6.8 N
 4.14 kg / 9.13 lbs
~0 Gs
5 mm 2.87 kg / 6.32 lbs
4 313 Gs
0.43 kg / 0.95 lbs
430 g / 4.2 N
 2.58 kg / 5.69 lbs
~0 Gs
10 mm 0.78 kg / 1.73 lbs
2 254 Gs
0.12 kg / 0.26 lbs
117 g / 1.2 N
 0.70 kg / 1.55 lbs
~0 Gs
20 mm 0.07 kg / 0.16 lbs
695 Gs
0.01 kg / 0.02 lbs
11 g / 0.1 N
 0.07 kg / 0.15 lbs
~0 Gs
50 mm 0.00 kg / 0.00 lbs
76 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
46 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
30 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
21 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
15 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
11 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
Two magnetic products attract each other from a wider radius than a neodymium and metal setup. Such a system of magnet-to-magnet generates a stronger field and a wider radius of performance. Designing a strong closure? Use a pair of magnets instead of one magnet and a steel. Exercise caution that when attracting two neodymiums, the collision energy is extreme. The repulsion force is marginally weaker than the attraction, but still significant.
*Flux density for N-N configuration drops to ~0 Gs at the midpoint between the magnets (due to field cancellation).
Note: Calculations refer to shear force of dual identical neodymium magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Hazards (electronics) - warnings
MPL 10x10x4 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 5.5 cm
Hearing aid 10 Gs (1.0 mT) 4.5 cm
Mechanical watch 20 Gs (2.0 mT) 3.5 cm
Mobile device 40 Gs (4.0 mT) 2.5 cm
Remote 50 Gs (5.0 mT) 2.5 cm
Payment card 400 Gs (40.0 mT) 1.0 cm
HDD hard drive 600 Gs (60.0 mT) 1.0 cm
A strong magnetic field is a serious hazard to IT equipment and pacemakers. These magnets generate a flux that prevents correct functioning of digital equipment. Remember: the invisible magnetic field penetrates the body and plastic. Special caution must be exercised by people with hearing aids and insulin pumps. Also at risk are: mechanical watches, car keys, membranes, and screens. Do not bring the product near payment cards, hard drives, or precise measuring instruments.

Table 8: Dynamics (cracking risk) - warning
MPL 10x10x4 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 24.69 km/h
(6.86 m/s)
 0.07 J
30 mm 24.82 km/h
(6.90 m/s)
 0.07 J
50 mm 24.82 km/h
(6.89 m/s)
 0.07 J
100 mm 24.83 km/h
(6.90 m/s)
 0.07 J
NdFeB products are prone to chipping – a strong collision with metal risks their cracking. Watch the impact speed – a neodymium left loose becomes dangerous. Impact energy can cause material chips or painful pinches to skin. Be sure to control the product during installation so it doesn't slam with momentum against the metal. A collision at high speed ends with a crack of the neodymium. Use safety goggles when playing with powerful specimens.

Table 9: Coating parameters (durability)
MPL 10x10x4 / 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)
The following table defines the conditions under which this product can be safely used. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Electrical data (Pc)
MPL 10x10x4 / N38

Parameter Value SI Unit / Description
Magnetic Flux 3 760 Mx 37.6 µWb
Pc Coefficient 0.46 Low (Flat)
Total magnetic flux passing through the magnet pole. Key data when building generators and motors. Pc value determines the magnet's operating point.

Table 11: Underwater work (magnet fishing)
MPL 10x10x4 / N38

Environment Effective steel pull Effect
Air (land) 3.10 kg Standard
Water (riverbed) 3.55 kg
(+0.45 kg buoyancy gain)
+14.5%
Warning: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!
The magnetic field penetrates through water without any losses. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Vertical hold

*Note: On a vertical wall, the magnet holds just a fraction of its perpendicular strength.

2. Steel thickness impact

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

3. Power loss vs temp

*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) = 0.46

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

Elemental analysis

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: 020112-2026
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This product is a very powerful magnet in the shape of a plate made of NdFeB material, which, with dimensions of 10x10x4 mm and a weight of 3 g, guarantees premium class connection. This rectangular block with a force of 30.39 N is ready for shipment in 24h, allowing for rapid realization of your project. The durable anti-corrosion layer ensures a long lifespan in a dry environment, protecting the core from oxidation.
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 10x10x4 / N38 model, firmly slide one magnet over the edge of the other until the attraction force decreases. We recommend extreme caution, 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 10x10x4 / N38 are the foundation for many industrial devices, such as magnetic separators and linear motors. They work great as invisible mounts under tiles, wood, or glass. Their rectangular shape facilitates precise gluing into milled sockets in wood or plastic.
Cyanoacrylate glues (super glue type) are good only for small magnets; for larger plates, we recommend resins. 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 10x10x4 / N38 model is magnetized axially (dimension 4 mm), which means that the N and S poles are located on its largest, flat surfaces. In practice, this means that this magnet has the greatest attraction force on its main planes (10x10 mm), which is ideal for flat mounting. This is the most popular configuration for block magnets used in separators and holders.
This model is characterized by dimensions 10x10x4 mm, which, at a weight of 3 g, makes it an element with high energy density. It is a magnetic block with dimensions 10x10x4 mm and a self-weight of 3 g, ready to work at temperatures up to 80°C. The product meets the standards for N38 grade magnets.

Pros as well as cons of neodymium magnets.

Pros

Besides their magnetic performance, neodymium magnets are valued for these benefits:
  • They retain magnetic properties for almost 10 years – the loss is just ~1% (according to analyses),
  • They have excellent resistance to weakening of magnetic properties due to external magnetic sources,
  • By covering with a decorative coating of gold, the element gains an professional look,
  • They feature high magnetic induction at the operating surface, making them more effective,
  • Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can function (depending on the form) even at a temperature of 230°C or more...
  • Considering the potential of flexible molding and customization to unique solutions, NdFeB magnets can be produced in a wide range of shapes and sizes, which makes them more universal,
  • Key role in modern industrial fields – they serve a role in hard drives, electromotive mechanisms, medical equipment, also industrial machines.
  • Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in compact dimensions, which enables their usage in miniature devices

Limitations

Cons of neodymium magnets: weaknesses and usage proposals
  • To avoid cracks upon strong impacts, we suggest using special steel housings. Such a solution secures the magnet and simultaneously improves its durability.
  • NdFeB magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of strength (a factor is the shape and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely resistant to heat
  • Magnets exposed to a humid environment can corrode. Therefore when using outdoors, we recommend using waterproof magnets made of rubber, plastic or other material resistant to moisture
  • We recommend cover - magnetic mechanism, due to difficulties in producing nuts inside the magnet and complex forms.
  • Potential hazard related to microscopic parts of magnets can be dangerous, when accidentally swallowed, which gains importance in the aspect of protecting the youngest. Furthermore, small elements of these products are able to be problematic in diagnostics medical in case of swallowing.
  • Due to expensive raw materials, their price exceeds standard values,

Holding force characteristics

Maximum lifting capacity of the magnet – what it depends on?

The declared magnet strength refers to the limit force, obtained under optimal environment, namely:
  • with the application of a yoke made of low-carbon steel, ensuring full magnetic saturation
  • with a thickness minimum 10 mm
  • with a plane perfectly flat
  • without the slightest insulating layer between the magnet and steel
  • under vertical application of breakaway force (90-degree angle)
  • at standard ambient temperature

Magnet lifting force in use – key factors

Bear in mind that the application force may be lower subject to elements below, in order of importance:
  • Space between surfaces – even a fraction of a millimeter of distance (caused e.g. by varnish or dirt) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
  • Force direction – declared lifting capacity refers to detachment vertically. When slipping, the magnet holds significantly lower power (often approx. 20-30% of maximum force).
  • Wall thickness – thin material does not allow full use of the magnet. Magnetic flux passes through the material instead of converting into lifting capacity.
  • Metal type – different alloys attracts identically. High carbon content worsen the attraction effect.
  • Base smoothness – the more even the plate, the better the adhesion and higher the lifting capacity. Roughness acts like micro-gaps.
  • Temperature – heating the magnet causes a temporary drop of induction. It is worth remembering the maximum operating temperature for a given model.

Lifting capacity was assessed by applying a smooth steel plate of suitable thickness (min. 20 mm), under perpendicular detachment force, however under attempts to slide the magnet the holding force is lower. Moreover, even a small distance between the magnet’s surface and the plate decreases the holding force.

Warnings
Crushing risk

Big blocks can smash fingers instantly. Do not place your hand betwixt two strong magnets.

Machining danger

Powder produced during cutting of magnets is self-igniting. Avoid drilling into magnets unless you are an expert.

Electronic devices

Intense magnetic fields can destroy records on payment cards, hard drives, and other magnetic media. Maintain a gap of min. 10 cm.

Warning for allergy sufferers

Medical facts indicate that the nickel plating (the usual finish) is a potent allergen. If your skin reacts to metals, avoid touching magnets with bare hands or select coated magnets.

Material brittleness

Beware of splinters. Magnets can fracture upon violent connection, launching sharp fragments into the air. Wear goggles.

Pacemakers

For implant holders: Powerful magnets disrupt medical devices. Keep minimum 30 cm distance or request help to handle the magnets.

Threat to navigation

Navigation devices and mobile phones are extremely sensitive to magnetic fields. Close proximity with a strong magnet can ruin the sensors in your phone.

Handling guide

Be careful. Neodymium magnets attract from a distance and snap with huge force, often quicker than you can move away.

Adults only

Adult use only. Tiny parts can be swallowed, leading to intestinal necrosis. Keep away from children and animals.

Heat sensitivity

Avoid heat. Neodymium magnets are susceptible to heat. If you require resistance above 80°C, inquire about special high-temperature series (H, SH, UH).

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