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MW 4x8 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010079

GTIN/EAN: 5906301810780

5.00
Load capacity 0.35 kg / 3.48 N Magnetic Induction 599.59 mT / 5996 Gs
Diameter Ø
4 mm [±0,1 mm]
Height
8 mm [±0,1 mm]
Weight
0.75 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

view properties »

0.570 zł net / pcs

0.701 zł with VAT (23% VAT) / pcs

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Frequently asked questions

What is the maximum working temperature of a disc magnet?
Standard N-series grades work up to 80 °C. Grades N50, N52 and N54 have a lower limit of 60 °C, because coercivity falls as BHmax rises. Higher temperatures require the H (120 °C), SH (150 °C), UH (180 °C), EH (200 °C) or AH (230 °C) series. Within the working range the magnet loses about 0.11% of its induction per degree, and that loss is reversible.
What is the difference between N38, N42 and N52?
The number after N is the energy product BHmax. Moving from N38 to N52 raises it by several tens of percent, but the real holding force increases by roughly 20%, because force also depends on geometry and on the magnetic circuit. N52 costs about twice as much as N42, so for most mounting work N38–N42 is the best price-to-force ratio.
What is the dimensional tolerance?
±0.1 mm as standard, ±0.05 mm to order. The tolerance is stated next to the dimensions on every product page.

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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Detailed specification - MW 4x8 / N38 - cylindrical magnet

Specification / characteristics - MW 4x8 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010079
GTIN/EAN 5906301810780
Production/Distribution Dhit sp. z o.o.
ul. Zielona 14 05-850 Ożarów Mazowiecki PL
Country of origin Poland / China / Germany
Customs code 85059029
Diameter Ø 4 mm [±0,1 mm]
Height 8 mm [±0,1 mm]
Weight 0.75 g
Magnetization Direction ↑ axial
Load capacity ~ ? 0.35 kg / 3.48 N
Magnetic Induction ~ ? 599.59 mT / 5996 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 4x8 / N38 - cylindrical 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 simulation of the product - technical parameters

These data are the direct effect of a engineering analysis. Results rely on models for the material Nd2Fe14B. Real-world conditions might slightly differ from theoretical values. Use these data as a reference point for designers.

Table 1: Static pull force (force vs distance) - power drop
MW 4x8 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 5984 Gs
598.4 mT
 0.35 kg / 0.77 LBS
350.0 g / 3.4 N
 low risk
1 mm 3280 Gs
328.0 mT
 0.11 kg / 0.23 LBS
105.1 g / 1.0 N
 low risk
2 mm 1696 Gs
169.6 mT
 0.03 kg / 0.06 LBS
28.1 g / 0.3 N
 low risk
3 mm 941 Gs
94.1 mT
 0.01 kg / 0.02 LBS
8.7 g / 0.1 N
 low risk
5 mm 371 Gs
37.1 mT
 0.00 kg / 0.00 LBS
1.3 g / 0.0 N
 low risk
10 mm 82 Gs
8.2 mT
 0.00 kg / 0.00 LBS
0.1 g / 0.0 N
 low risk
15 mm 31 Gs
3.1 mT
 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
 low risk
20 mm 15 Gs
1.5 mT
 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
 low risk
30 mm 5 Gs
0.5 mT
 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
 low risk
50 mm 1 Gs
0.1 mT
 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
 low risk
Pulling power drops sharply per each millimeter of gap. Note that even a very thin break (e.g., contamination, paint, veneer) strongly weakens the grip. Magnetic products hold strongest at the point of direct contact; distance kills the force. Notice how quickly the load capacity fall, when the product does not adhere tightly to the metal substrate. When designing the arrangement, avoid redundant distances.

Table 2: Slippage load (vertical surface)
MW 4x8 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.07 kg / 0.15 LBS
70.0 g / 0.7 N
1 mm Stal (~0.2) 0.02 kg / 0.05 LBS
22.0 g / 0.2 N
2 mm Stal (~0.2) 0.01 kg / 0.01 LBS
6.0 g / 0.1 N
3 mm Stal (~0.2) 0.00 kg / 0.00 LBS
2.0 g / 0.0 N
5 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
10 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
15 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
20 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
30 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
50 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
The table below calculates the estimated force required to start the shifting of the magnet downwards along a upright steel plate (assuming standard friction coefficient). This parameter depends on the distance between the magnet and the metal.

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MW 4x8 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.11 kg / 0.23 LBS
105.0 g / 1.0 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.07 kg / 0.15 LBS
70.0 g / 0.7 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.03 kg / 0.08 LBS
35.0 g / 0.3 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
0.18 kg / 0.39 LBS
175.0 g / 1.7 N
When mounting a magnet on a upright wall (e.g., a car body), it will maintain barely approx. 20%-30% of nominal attraction strength. Gravitational force as well as a weak degree of grip influence the fact that holders move down easier than they pull off. Designing a vertical fastening? Remember that the shear force is significantly lower than the perpendicular breakaway force. On a painted metal, the magnet will slide down under a much lighter cargo. Utilizing a rubberized layer can significantly increase the grip.

Table 4: Material efficiency (saturation) - power losses
MW 4x8 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.03 kg / 0.08 LBS
35.0 g / 0.3 N
1 mm
25%
 0.09 kg / 0.19 LBS
87.5 g / 0.9 N
2 mm
50%
 0.18 kg / 0.39 LBS
175.0 g / 1.7 N
3 mm
75%
 0.26 kg / 0.58 LBS
262.5 g / 2.6 N
5 mm
100%
 0.35 kg / 0.77 LBS
350.0 g / 3.4 N
10 mm
100%
 0.35 kg / 0.77 LBS
350.0 g / 3.4 N
11 mm
100%
 0.35 kg / 0.77 LBS
350.0 g / 3.4 N
12 mm
100%
 0.35 kg / 0.77 LBS
350.0 g / 3.4 N
A thin sheet is not enough to absorb the full magnetic flux, which wastes potential of the magnet. Should you install a neodymium to a thin surface, the field will pass right through and the pull force will drop sharply. To utilize the maximum of this magnet's potential, you need a suitably thick backing of metal. The saturation effect means that on thin elements (e.g., appliance housings), the product works worse. We suggest choosing the steel thickness from these parameters.

Table 5: Thermal stability (stability) - power drop
MW 4x8 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 0.35 kg / 0.77 LBS
350.0 g / 3.4 N
 OK
40 °C -2.2% 0.34 kg / 0.75 LBS
342.3 g / 3.4 N
 OK
60 °C -4.4% 0.33 kg / 0.74 LBS
334.6 g / 3.3 N
 OK
80 °C -6.6% 0.33 kg / 0.72 LBS
326.9 g / 3.2 N
100 °C -28.8% 0.25 kg / 0.55 LBS
249.2 g / 2.4 N
Ordinary NdFeB products lose power above the temperature limit. Protect against heat – high temperature can irreversibly destroy this product. With increasing heat, the neodymium's power momentarily decreases. Do not use this product close to heaters higher than its operating temperature limit. Too high temperature will cause permanent loss of magnetism.
*Technical advisory: Thermal stability is determined by both grade, and the Permeance Coefficient Pc. Thin magnets (low Pc) are more susceptible to demagnetization sooner than long magnets. Red status in the table indicates permanent field degradation for this particular item.

Table 6: Magnet-Magnet interaction (repulsion) - forces in the system
MW 4x8 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Strength (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 2.77 kg / 6.12 LBS
6 121 Gs
0.42 kg / 0.92 LBS
416 g / 4.1 N
 N/A
1 mm 1.59 kg / 3.51 LBS
9 063 Gs
0.24 kg / 0.53 LBS
239 g / 2.3 N
 1.43 kg / 3.16 LBS
~0 Gs
2 mm 0.83 kg / 1.84 LBS
6 559 Gs
0.12 kg / 0.28 LBS
125 g / 1.2 N
 0.75 kg / 1.65 LBS
~0 Gs
3 mm 0.43 kg / 0.94 LBS
4 694 Gs
0.06 kg / 0.14 LBS
64 g / 0.6 N
 0.38 kg / 0.85 LBS
~0 Gs
5 mm 0.12 kg / 0.27 LBS
2 498 Gs
0.02 kg / 0.04 LBS
18 g / 0.2 N
 0.11 kg / 0.24 LBS
~0 Gs
10 mm 0.01 kg / 0.02 LBS
743 Gs
0.00 kg / 0.00 LBS
2 g / 0.0 N
 0.01 kg / 0.02 LBS
~0 Gs
20 mm 0.00 kg / 0.00 LBS
165 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
50 mm 0.00 kg / 0.00 LBS
17 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
10 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
7 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
5 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
3 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
3 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
Two magnetic products interact from a significantly greater distance than a magnet and sheet combination. Such a system of two magnets creates a more powerful interaction and a further horizon of action. Planning to create a solid fastener? Use a pair of magnets instead of one magnet and a steel. Remember that when connecting a pair of magnets, the collision energy is massive. The repulsion force is slightly lower than the connection force, but still significant.
*The magnetic induction in repulsion mode reaches ~0 Gs at the geometric center of the gap (caused by magnetic field nullification).
* Results apply to shear force of dual identical neodymium magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Protective zones (electronics) - precautionary measures
MW 4x8 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 3.5 cm
Hearing aid 10 Gs (1.0 mT) 2.5 cm
Timepiece 20 Gs (2.0 mT) 2.0 cm
Phone / Smartphone 40 Gs (4.0 mT) 1.5 cm
Car key 50 Gs (5.0 mT) 1.5 cm
Payment card 400 Gs (40.0 mT) 0.5 cm
HDD hard drive 600 Gs (60.0 mT) 0.5 cm
Extremely neodym field poses a real danger to electronic devices and pacemakers. These magnets generate a field that prevents correct functioning of digital equipment. Notice: the invisible magnetic field acts through matter and glass. Exceptional care must be exercised by people with cochlear implants and drug dispensers. The risk also applies to: mechanical watches, car keys, membranes, and screens. Avoid contact with magnetic cards, HDD media, or precise measuring instruments.

Table 8: Dynamics (cracking risk) - collision effects
MW 4x8 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 9.99 km/h
(2.77 m/s)
 0.00 J
30 mm 9.99 km/h
(2.77 m/s)
 0.00 J
50 mm 9.99 km/h
(2.77 m/s)
 0.00 J
100 mm 9.99 km/h
(2.78 m/s)
 0.00 J
Neodymium magnets are prone to chipping – a violent impact against metal risks their cracking. Pay attention to connection velocity – a magnet released freely turns into a projectile. Impact energy can trigger coating fragments or injury to skin. Always hold the magnet during mounting so it doesn't slam with momentum against the steel surface. A contact at a velocity of dozens of km/h ends with a crack of the neodymium. Use safety goggles when playing with powerful specimens.

Table 9: Coating parameters (durability)
MW 4x8 / 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: Construction data (Pc)
MW 4x8 / N38

Parameter Value SI Unit / Description
Magnetic Flux 836 Mx 8.4 µWb
Pc Coefficient 1.21 High (Stable)
Flux value passing through the magnet pole. Essential parameter in coil applications and motors. Pc value determines the magnet's operating point.

Table 11: Underwater work (magnet fishing)
MW 4x8 / N38

Environment Effective steel pull Effect
Air (land) 0.35 kg Standard
Water (riverbed) 0.40 kg
(+0.05 kg buoyancy gain)
+14.5%
Warning: 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. However, remember the water resistance when pulling the rope quickly.

1. Wall mount (shear)

*Note: On a vertical surface, the magnet holds just a fraction of its nominal pull.

2. Steel saturation

*Thin steel (e.g. 0.5mm PC case) severely limits the holding force.

3. Temperature resistance

*For N38 grade, the safety limit is 80°C.

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 1.21

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%

Ecology and recycling (GPSR)

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: 010079-2026
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The presented product is a very strong cylindrical magnet, composed of advanced NdFeB material, which, with dimensions of Ø4x8 mm, guarantees maximum efficiency. This specific item features high dimensional repeatability and professional build quality, making it a perfect solution for the most demanding engineers and designers. As a cylindrical magnet with significant force (approx. 0.35 kg), this product is in stock from our European logistics center, ensuring lightning-fast order fulfillment. Moreover, its Ni-Cu-Ni coating effectively protects it against corrosion in typical operating conditions, ensuring an aesthetic appearance and durability for years.
This model is ideal for building generators, advanced Hall effect sensors, and efficient filters, where maximum induction on a small surface counts. Thanks to the high power of 3.48 N with a weight of only 0.75 g, this cylindrical magnet is indispensable in electronics and wherever every gram matters.
Since our magnets have a very precise dimensions, the recommended way is to glue them into holes with a slightly larger diameter (e.g., 4.1 mm) using epoxy glues. To ensure long-term durability in industry, anaerobic resins are used, which do not react with the nickel coating and fill the gap, guaranteeing high repeatability of the connection.
Grade N38 is the most popular standard for professional neodymium magnets, offering an optimal price-to-power ratio and high resistance to demagnetization. If you need the strongest magnets in the same volume (Ø4x8), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our warehouse.
This model is characterized by dimensions Ø4x8 mm, which, at a weight of 0.75 g, makes it an element with impressive magnetic energy density. The value of 3.48 N means that the magnet is capable of holding a weight many times exceeding its own mass of 0.75 g. The product has a [NiCuNi] coating, which secures it against oxidation, giving it an aesthetic, silvery shine.
Standardly, the magnetic axis runs through the center of the cylinder, causing the greatest attraction force to occur on the bases with a diameter of 4 mm. Such an arrangement is most desirable when connecting magnets in stacks (e.g., in filters) or when mounting in sockets at the bottom of a hole. On request, we can also produce versions magnetized through the diameter if your project requires it.

Pros and cons of neodymium magnets.

Advantages

In addition to their long-term stability, neodymium magnets provide the following advantages:
  • Their magnetic field remains stable, and after approximately ten years it drops only by ~1% (according to research),
  • They do not lose their magnetic properties even under strong external field,
  • By applying a smooth coating of silver, the element acquires an elegant look,
  • Magnetic induction on the working part of the magnet turns out to be exceptional,
  • Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can work (depending on the form) even at a temperature of 230°C or more...
  • Due to the ability of flexible shaping and adaptation to specialized solutions, magnetic components can be produced in a variety of geometric configurations, which amplifies use scope,
  • Wide application in modern industrial fields – they are utilized in magnetic memories, electric motors, medical equipment, also multitasking production systems.
  • Relatively small size with high pulling force – neodymium magnets offer high power in small dimensions, which allows their use in small systems

Cons

Disadvantages of NdFeB magnets:
  • To avoid cracks upon strong impacts, we suggest using special steel housings. Such a solution secures the magnet and simultaneously improves its durability.
  • We warn that neodymium magnets can lose their strength at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
  • When exposed to humidity, magnets usually rust. To use them in conditions outside, it is recommended to use protective magnets, such as those in rubber or plastics, which prevent oxidation and corrosion.
  • Limited possibility of making nuts in the magnet and complex forms - recommended is a housing - magnet mounting.
  • Health risk to health – tiny shards of magnets pose a threat, when accidentally swallowed, which is particularly important in the context of child safety. Additionally, small components of these magnets can be problematic in diagnostics medical after entering the body.
  • High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which hinders application in large quantities

Holding force characteristics

Highest magnetic holding force – what it depends on?

The force parameter is a result of laboratory testing performed under specific, ideal conditions:
  • with the contact of a sheet made of low-carbon steel, guaranteeing maximum field concentration
  • possessing a massiveness of min. 10 mm to avoid saturation
  • characterized by smoothness
  • with zero gap (no paint)
  • for force applied at a right angle (in the magnet axis)
  • at room temperature

Lifting capacity in real conditions – factors

Holding efficiency is influenced by working environment parameters, such as (from most important):
  • Gap between magnet and steel – every millimeter of distance (caused e.g. by veneer or unevenness) 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 exhibits much less (typically approx. 20-30% of maximum force).
  • Wall thickness – thin material does not allow full use of the magnet. Part of the magnetic field passes through the material instead of converting into lifting capacity.
  • Steel grade – the best choice is pure iron steel. Hardened steels may have worse magnetic properties.
  • Surface structure – the more even the surface, the better the adhesion and higher the lifting capacity. Unevenness acts like micro-gaps.
  • Temperature – heating the magnet causes a temporary drop of force. It is worth remembering the maximum operating temperature for a given model.

Lifting capacity testing was carried out on plates with a smooth surface of suitable thickness, under a perpendicular pulling force, whereas under shearing force the load capacity is reduced by as much as 5 times. Additionally, even a minimal clearance between the magnet’s surface and the plate lowers the load capacity.

Precautions when working with neodymium magnets
Heat sensitivity

Keep cool. Neodymium magnets are susceptible to temperature. If you require operation above 80°C, look for special high-temperature series (H, SH, UH).

Safe distance

Very strong magnetic fields can erase data on payment cards, HDDs, and storage devices. Stay away of min. 10 cm.

Medical interference

Individuals with a pacemaker should maintain an absolute distance from magnets. The magnetic field can disrupt the operation of the life-saving device.

Machining danger

Drilling and cutting of neodymium magnets carries a risk of fire hazard. Magnetic powder oxidizes rapidly with oxygen and is difficult to extinguish.

This is not a toy

Strictly keep magnets out of reach of children. Choking hazard is significant, and the consequences of magnets connecting inside the body are fatal.

Sensitization to coating

Allergy Notice: The nickel-copper-nickel coating contains nickel. If skin irritation appears, cease working with magnets and wear gloves.

Do not underestimate power

Handle with care. Neodymium magnets act from a long distance and connect with massive power, often quicker than you can move away.

Physical harm

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

Eye protection

NdFeB magnets are ceramic materials, which means they are fragile like glass. Collision of two magnets will cause them cracking into shards.

GPS Danger

Be aware: rare earth magnets generate a field that interferes with sensitive sensors. Keep a separation from your mobile, device, and GPS.

Important! Looking for details? Check our post: Why are neodymium magnets dangerous?