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MPL 30x20x4 / N38 - lamellar magnet

lamellar magnet

Catalog no 020286

GTIN/EAN: 5906301811848

Load capacity 6.30 kg / 61.84 N Magnetic Induction 180.57 mT / 1806 Gs
length
30 mm [±0,1 mm]
Width
20 mm [±0,1 mm]
Height
4 mm [±0,1 mm]
Weight
18 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel
see parameters »

10.23 zł with VAT / pcs + price for transport

8.32 zł net + 23% VAT / pcs

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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
Need help making a decision?

Contact us by phone +48 22 499 98 98 if you prefer send us a note through our online form our website.
Parameters along with form of a magnet can be calculated with our force calculator.

Orders placed before 14:00 will be shipped the same business day.

Technical - MPL 30x20x4 / N38 - lamellar magnet

Specification / characteristics - MPL 30x20x4 / N38 - lamellar magnet

properties
properties values
Cat. no. 020286
GTIN/EAN 5906301811848
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 30 mm [±0,1 mm]
Width 20 mm [±0,1 mm]
Height 4 mm [±0,1 mm]
Weight 18 g
Magnetization Direction ↑ axial
Load capacity ~ ? 6.30 kg / 61.84 N
Magnetic Induction ~ ? 180.57 mT / 1806 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 30x20x4 / 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

Technical analysis of the assembly - data

These values constitute the result of a engineering simulation. Values rely on models for the material Nd2Fe14B. Real-world conditions might slightly differ from theoretical values. Use these data as a supplementary guide when designing systems.

Table 1: Static pull force (force vs distance) - power drop
MPL 30x20x4 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 1805 Gs
180.5 mT
 6.30 kg / 13.89 pounds
6300.0 g / 61.8 N
 strong
1 mm 1728 Gs
172.8 mT
 5.77 kg / 12.72 pounds
5771.5 g / 56.6 N
 strong
2 mm 1628 Gs
162.8 mT
 5.13 kg / 11.30 pounds
5125.7 g / 50.3 N
 strong
3 mm 1515 Gs
151.5 mT
 4.43 kg / 9.78 pounds
4434.6 g / 43.5 N
 strong
5 mm 1271 Gs
127.1 mT
 3.12 kg / 6.89 pounds
3124.3 g / 30.6 N
 strong
10 mm 751 Gs
75.1 mT
 1.09 kg / 2.40 pounds
1088.7 g / 10.7 N
 weak grip
15 mm 435 Gs
43.5 mT
 0.37 kg / 0.81 pounds
366.3 g / 3.6 N
 weak grip
20 mm 262 Gs
26.2 mT
 0.13 kg / 0.29 pounds
132.6 g / 1.3 N
 weak grip
30 mm 110 Gs
11.0 mT
 0.02 kg / 0.05 pounds
23.2 g / 0.2 N
 weak grip
50 mm 30 Gs
3.0 mT
 0.00 kg / 0.00 pounds
1.8 g / 0.0 N
 weak grip
Magnetic force weakens significantly with every subsequent millimeter of spacing. Note that even the smallest gap (e.g., contamination, paint, veneer) strongly reduces the pull force. Neodymiums hold optimally at the point of direct contact; air break drastically cuts the power. Observe how flashily the load capacity plummet, when the product does not touch tightly to the metal substrate. When calculating the arrangement, avoid unnecessary gaps.

Table 2: Vertical load (wall)
MPL 30x20x4 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 1.26 kg / 2.78 pounds
1260.0 g / 12.4 N
1 mm Stal (~0.2) 1.15 kg / 2.54 pounds
1154.0 g / 11.3 N
2 mm Stal (~0.2) 1.03 kg / 2.26 pounds
1026.0 g / 10.1 N
3 mm Stal (~0.2) 0.89 kg / 1.95 pounds
886.0 g / 8.7 N
5 mm Stal (~0.2) 0.62 kg / 1.38 pounds
624.0 g / 6.1 N
10 mm Stal (~0.2) 0.22 kg / 0.48 pounds
218.0 g / 2.1 N
15 mm Stal (~0.2) 0.07 kg / 0.16 pounds
74.0 g / 0.7 N
20 mm Stal (~0.2) 0.03 kg / 0.06 pounds
26.0 g / 0.3 N
30 mm Stal (~0.2) 0.00 kg / 0.01 pounds
4.0 g / 0.0 N
50 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
This section indicates the estimated force needed to start the slippage of the magnet downwards along a upright steel plate (considering typical friction coefficient). This parameter is a function of the separation distance between the magnet and the surface.

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MPL 30x20x4 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
1.89 kg / 4.17 pounds
1890.0 g / 18.5 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
1.26 kg / 2.78 pounds
1260.0 g / 12.4 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.63 kg / 1.39 pounds
630.0 g / 6.2 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
3.15 kg / 6.94 pounds
3150.0 g / 30.9 N
When mounting a magnet on a vertical surface (e.g., a car body), it you can count on just about 1/5 of its maximum pull force. Gravitational force and a low friction coefficient cause that products move down faster than they pull off. Planning a hanger? Consider that the sliding force is noticeably lower than the maximum static pull force. On a slippery surface, the magnet will slip down under a much lighter cargo. Utilizing a rubberized layer can drastically raise the stability.

Table 4: Material efficiency (saturation) - power losses
MPL 30x20x4 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.63 kg / 1.39 pounds
630.0 g / 6.2 N
1 mm
25%
 1.58 kg / 3.47 pounds
1575.0 g / 15.5 N
2 mm
50%
 3.15 kg / 6.94 pounds
3150.0 g / 30.9 N
3 mm
75%
 4.73 kg / 10.42 pounds
4725.0 g / 46.4 N
5 mm
100%
 6.30 kg / 13.89 pounds
6300.0 g / 61.8 N
10 mm
100%
 6.30 kg / 13.89 pounds
6300.0 g / 61.8 N
11 mm
100%
 6.30 kg / 13.89 pounds
6300.0 g / 61.8 N
12 mm
100%
 6.30 kg / 13.89 pounds
6300.0 g / 61.8 N
A thin metal plate cannot focus the full magnetic flux, which wastes potential of the holder. Should you mount a strong magnet to a thin surface, the flux will penetrate right through and the pull force will drop sharply. To achieve full efficiency of this magnet's power, you need a suitably thick backing of steel. The saturation effect means that on sheet metal structures (e.g., appliance housings), the product holds weaker. We advise picking the steel cross-section according to the table below.

Table 5: Thermal resistance (stability) - power drop
MPL 30x20x4 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 6.30 kg / 13.89 pounds
6300.0 g / 61.8 N
 OK
40 °C -2.2% 6.16 kg / 13.58 pounds
6161.4 g / 60.4 N
 OK
60 °C -4.4% 6.02 kg / 13.28 pounds
6022.8 g / 59.1 N
80 °C -6.6% 5.88 kg / 12.97 pounds
5884.2 g / 57.7 N
100 °C -28.8% 4.49 kg / 9.89 pounds
4485.6 g / 44.0 N
Classic neodymiums change their properties parameters after exceeding the maximum temperature. Watch out for overheating – heat can permanently damage this product. With every degree above norm, the magnet's power temporarily drops. Refrain from using this magnet close to heaters exceeding its operating temperature limit. Ignoring the limit will result in permanent loss of magnetism.
*Engineering note: Thermal stability depends not only on the material grade, but also on the magnet's shape. Flat magnets (low permeance coefficient) risk losing magnetic properties at lower temperatures than long magnets. Warning indicator in the table points to a risk of irreversible loss for this particular item.

Table 6: Two magnets (attraction) - forces in the system
MPL 30x20x4 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Strength (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 12.06 kg / 26.58 pounds
3 198 Gs
1.81 kg / 3.99 pounds
1809 g / 17.7 N
 N/A
1 mm 11.59 kg / 25.55 pounds
3 540 Gs
1.74 kg / 3.83 pounds
1739 g / 17.1 N
 10.43 kg / 23.00 pounds
~0 Gs
2 mm 11.05 kg / 24.35 pounds
3 456 Gs
1.66 kg / 3.65 pounds
1657 g / 16.3 N
 9.94 kg / 21.92 pounds
~0 Gs
3 mm 10.45 kg / 23.03 pounds
3 361 Gs
1.57 kg / 3.45 pounds
1567 g / 15.4 N
 9.40 kg / 20.73 pounds
~0 Gs
5 mm 9.15 kg / 20.18 pounds
3 146 Gs
1.37 kg / 3.03 pounds
1373 g / 13.5 N
 8.24 kg / 18.16 pounds
~0 Gs
10 mm 5.98 kg / 13.18 pounds
2 543 Gs
0.90 kg / 1.98 pounds
897 g / 8.8 N
 5.38 kg / 11.86 pounds
~0 Gs
20 mm 2.08 kg / 4.59 pounds
1 501 Gs
0.31 kg / 0.69 pounds
313 g / 3.1 N
 1.88 kg / 4.13 pounds
~0 Gs
50 mm 0.10 kg / 0.22 pounds
331 Gs
0.02 kg / 0.03 pounds
15 g / 0.1 N
 0.09 kg / 0.20 pounds
~0 Gs
60 mm 0.04 kg / 0.10 pounds
219 Gs
0.01 kg / 0.01 pounds
7 g / 0.1 N
 0.04 kg / 0.09 pounds
~0 Gs
70 mm 0.02 kg / 0.05 pounds
151 Gs
0.00 kg / 0.01 pounds
3 g / 0.0 N
 0.02 kg / 0.04 pounds
~0 Gs
80 mm 0.01 kg / 0.02 pounds
108 Gs
0.00 kg / 0.00 pounds
2 g / 0.0 N
 0.01 kg / 0.02 pounds
~0 Gs
90 mm 0.01 kg / 0.01 pounds
80 Gs
0.00 kg / 0.00 pounds
1 g / 0.0 N
 0.00 kg / 0.00 pounds
~0 Gs
100 mm 0.00 kg / 0.01 pounds
60 Gs
0.00 kg / 0.00 pounds
1 g / 0.0 N
 0.00 kg / 0.00 pounds
~0 Gs
Two magnets interact from a wider radius than a neodymium and metal combination. The connection of magnet-to-magnet generates a stronger field and a larger range of performance. Planning to create a powerful holder? Use a pair of magnets instead of a neodymium and a steel. Exercise caution that when connecting a pair of magnets, the collision energy is massive. The levitation is marginally weaker than the connection force, but still large.
*Field value in repulsion mode is approximately ~0 Gs in the exact middle of the gap (caused by magnetic field nullification).
Important: Figures refer to friction force of dual same magnets (friction coefficient ~0.15 for Ni-Ni plating).

Table 7: Hazards (electronics) - precautionary measures
MPL 30x20x4 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 10.0 cm
Hearing aid 10 Gs (1.0 mT) 7.5 cm
Mechanical watch 20 Gs (2.0 mT) 6.0 cm
Phone / Smartphone 40 Gs (4.0 mT) 4.5 cm
Remote 50 Gs (5.0 mT) 4.5 cm
Payment card 400 Gs (40.0 mT) 2.0 cm
HDD hard drive 600 Gs (60.0 mT) 1.5 cm
Powerful magnet radiation poses a large risk to electronics and pacemakers. These neodymiums produce a flux that disrupts operation of digital equipment. Notice: the unseen radiation passes through tissues and glass. Special caution must be taken by people with hearing aids and insulin pumps. Influence will be felt by: mechanical watches, remotes, membranes, and displays. Do not bring the product near payment cards, hard drives, or sensitive navigation tools.

Table 8: Collisions (cracking risk) - collision effects
MPL 30x20x4 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 21.81 km/h
(6.06 m/s)
 0.33 J
30 mm 23.39 km/h
(6.50 m/s)
 0.38 J
50 mm 23.42 km/h
(6.51 m/s)
 0.38 J
100 mm 23.44 km/h
(6.51 m/s)
 0.38 J
Neodymium magnets are delicate – a strong collision with metal risks their cracking. Pay attention to connection velocity – a neodymium left loose becomes dangerous. Impact energy can trigger coating fragments or dangerous crushing to skin. Be sure to control the product during installation so it doesn't slam with momentum against the metal. A contact at a velocity of dozens of km/h means shattering of the magnet. Use safety goggles when playing with powerful specimens.

Table 9: Anti-corrosion coating durability
MPL 30x20x4 / 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 30x20x4 / N38

Parameter Value SI Unit / Description
Magnetic Flux 12 775 Mx 127.8 µWb
Pc Coefficient 0.22 Low (Flat)
Flux value emitted by the magnet pole. Essential parameter when building generators and motors. The Pc coefficient determines the working geometry.

Table 11: Hydrostatics and buoyancy
MPL 30x20x4 / N38

Environment Effective steel pull Effect
Air (land) 6.30 kg Standard
Water (riverbed) 7.21 kg
(+0.91 kg buoyancy gain)
+14.5%
Corrosion warning: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!
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. Sliding resistance

*Caution: On a vertical surface, the magnet retains merely a fraction of its max power.

2. Efficiency vs thickness

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

3. Thermal stability

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

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.22

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 specification and ecology

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%

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: 020286-2026
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Model MPL 30x20x4 / N38 features a flat shape and industrial pulling force, making it an ideal solution for building separators and machines. This magnetic block with a force of 61.84 N is ready for shipment in 24h, allowing for rapid realization of your project. Furthermore, its Ni-Cu-Ni coating protects it against corrosion in standard operating conditions, giving it an aesthetic appearance.
The key to success is sliding the magnets along their largest connection plane (using e.g., the edge of a table), which is easier than trying to tear them apart directly. To separate the MPL 30x20x4 / 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.
They constitute a key element in the production of generators and material handling systems. They work great as fasteners under tiles, wood, or glass. Customers often choose this model for hanging tools on strips and for advanced DIY and modeling projects, where precision and power count.
For mounting flat magnets MPL 30x20x4 / N38, we recommend utilizing two-component adhesives (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. Remember to roughen and wash the magnet surface before gluing, which significantly increases the adhesion of the glue to the nickel coating.
Standardly, the MPL 30x20x4 / N38 model is magnetized through the thickness (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 (30x20 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.
This model is characterized by dimensions 30x20x4 mm, which, at a weight of 18 g, makes it an element with high energy density. The key parameter here is the holding force amounting to approximately 6.30 kg (force ~61.84 N), which, with such a flat shape, proves the high power of the material. The product meets the standards for N38 grade magnets.

Pros as well as cons of neodymium magnets.

Pros

In addition to their pulling strength, neodymium magnets provide the following advantages:
  • They have stable power, and over around ten years their attraction force decreases symbolically – ~1% (in testing),
  • Neodymium magnets remain exceptionally resistant to loss of magnetic properties caused by external magnetic fields,
  • By covering with a decorative coating of gold, the element gains an modern look,
  • Magnetic induction on the top side of the magnet is maximum,
  • Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the shape) even at high temperatures reaching 230°C or more...
  • Thanks to freedom in forming and the ability to modify to client solutions,
  • Versatile presence in electronics industry – they are commonly used in hard drives, motor assemblies, precision medical tools, as well as multitasking production systems.
  • Compactness – despite small sizes they generate large force, making them ideal for precision applications

Limitations

Drawbacks and weaknesses of neodymium magnets and ways of using them
  • They are prone to damage upon heavy impacts. To avoid cracks, it is worth protecting magnets in a protective case. 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 strength. 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, in case of application outdoors
  • We suggest cover - magnetic holder, due to difficulties in creating threads inside the magnet and complicated forms.
  • Possible danger resulting from small fragments of magnets pose a threat, if swallowed, which becomes key in the aspect of protecting the youngest. It is also worth noting that tiny parts of these products can complicate diagnosis medical in case of swallowing.
  • With budget limitations the cost of neodymium magnets is economically unviable,

Holding force characteristics

Highest magnetic holding force – what contributes to it?

The force parameter is a measurement result executed under specific, ideal conditions:
  • on a plate made of mild steel, perfectly concentrating the magnetic field
  • whose transverse dimension equals approx. 10 mm
  • with an ground touching surface
  • under conditions of ideal adhesion (surface-to-surface)
  • during detachment in a direction perpendicular to the plane
  • in stable room temperature

Practical aspects of lifting capacity – factors

In real-world applications, the actual lifting capacity depends on several key aspects, listed from most significant:
  • Gap (betwixt the magnet and the plate), because even a tiny distance (e.g. 0.5 mm) results in a drastic drop in lifting capacity by up to 50% (this also applies to paint, corrosion or dirt).
  • Force direction – note that the magnet holds strongest perpendicularly. Under shear forces, the capacity drops drastically, often to levels of 20-30% of the nominal value.
  • Element thickness – to utilize 100% power, the steel must be sufficiently thick. Paper-thin metal restricts the attraction force (the magnet "punches through" it).
  • Metal type – not every steel reacts the same. Alloy additives weaken the attraction effect.
  • Plate texture – smooth surfaces guarantee perfect abutment, which improves force. Rough surfaces weaken the grip.
  • Thermal factor – high temperature reduces pulling force. Too high temperature can permanently demagnetize the magnet.

Lifting capacity was assessed using a steel plate with a smooth surface of optimal thickness (min. 20 mm), under vertically applied force, whereas under shearing force the holding force is lower. Moreover, even a minimal clearance between the magnet’s surface and the plate lowers the lifting capacity.

Safety rules for work with neodymium magnets
Nickel allergy

A percentage of the population have a hypersensitivity to nickel, which is the standard coating for neodymium magnets. Extended handling can result in skin redness. We strongly advise wear protective gloves.

Compass and GPS

Navigation devices and mobile phones are extremely sensitive to magnetic fields. Direct contact with a strong magnet can ruin the internal compass in your phone.

Dust explosion hazard

Powder produced during grinding of magnets is combustible. Avoid drilling into magnets without proper cooling and knowledge.

Finger safety

Risk of injury: The attraction force is so immense that it can result in hematomas, pinching, and even bone fractures. Use thick gloves.

Demagnetization risk

Do not overheat. NdFeB magnets are susceptible to heat. If you need operation above 80°C, inquire about special high-temperature series (H, SH, UH).

Keep away from computers

Do not bring magnets near a wallet, computer, or TV. The magnetic field can irreversibly ruin these devices and wipe information from cards.

Implant safety

Health Alert: Strong magnets can turn off heart devices and defibrillators. Do not approach if you have medical devices.

Risk of cracking

Beware of splinters. Magnets can explode upon uncontrolled impact, ejecting shards into the air. We recommend safety glasses.

Safe operation

Before starting, check safety instructions. Sudden snapping can destroy the magnet or hurt your hand. Be predictive.

Choking Hazard

Neodymium magnets are not intended for children. Accidental ingestion of multiple magnets can lead to them connecting inside the digestive tract, which poses a critical condition and requires immediate surgery.

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