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MW 8x20 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010475

GTIN/EAN: 5906301811138

5.00
Load capacity 1.30 kg / 12.75 N Magnetic Induction 607.01 mT / 6070 Gs
Diameter Ø
8 mm [±0,1 mm]
Height
20 mm [±0,1 mm]
Weight
7.54 g
Magnetization Direction
→ diametrical
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

check properties »

3.74 zł net / pcs

4.60 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

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 details - MW 8x20 / N38 - cylindrical magnet

Specification / characteristics - MW 8x20 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010475
GTIN/EAN 5906301811138
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 8 mm [±0,1 mm]
Height 20 mm [±0,1 mm]
Weight 7.54 g
Magnetization Direction → diametrical
Load capacity ~ ? 1.30 kg / 12.75 N
Magnetic Induction ~ ? 607.01 mT / 6070 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 8x20 / 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

Engineering simulation of the product - report

Presented values represent the result of a engineering simulation. Values rely on algorithms for the class Nd2Fe14B. Operational conditions may deviate from the simulation results. Treat these calculations as a reference point for designers.

Table 1: Static force (force vs gap) - interaction chart
MW 8x20 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 6064 Gs
606.4 mT
 1.30 kg / 2.87 pounds
1300.0 g / 12.8 N
 safe
1 mm 4587 Gs
458.7 mT
 0.74 kg / 1.64 pounds
743.7 g / 7.3 N
 safe
2 mm 3327 Gs
332.7 mT
 0.39 kg / 0.86 pounds
391.4 g / 3.8 N
 safe
3 mm 2388 Gs
238.8 mT
 0.20 kg / 0.44 pounds
201.6 g / 2.0 N
 safe
5 mm 1281 Gs
128.1 mT
 0.06 kg / 0.13 pounds
58.0 g / 0.6 N
 safe
10 mm 389 Gs
38.9 mT
 0.01 kg / 0.01 pounds
5.4 g / 0.1 N
 safe
15 mm 169 Gs
16.9 mT
 0.00 kg / 0.00 pounds
1.0 g / 0.0 N
 safe
20 mm 90 Gs
9.0 mT
 0.00 kg / 0.00 pounds
0.3 g / 0.0 N
 safe
30 mm 35 Gs
3.5 mT
 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
 safe
50 mm 10 Gs
1.0 mT
 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
 safe
Magnetic force weakens sharply with every subsequent millimeter of spacing. Remember that even the smallest gap (e.g., dirt, varnish, veneer) noticeably reduces the pull force. Magnetic products operate most effectively at the point of direct contact; gap drastically cuts the force. See how rapidly the parameters plummet, when the magnet does not touch flatly to the steel surface. When calculating the arrangement, avoid redundant distances.

Table 2: Vertical capacity (wall)
MW 8x20 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.26 kg / 0.57 pounds
260.0 g / 2.6 N
1 mm Stal (~0.2) 0.15 kg / 0.33 pounds
148.0 g / 1.5 N
2 mm Stal (~0.2) 0.08 kg / 0.17 pounds
78.0 g / 0.8 N
3 mm Stal (~0.2) 0.04 kg / 0.09 pounds
40.0 g / 0.4 N
5 mm Stal (~0.2) 0.01 kg / 0.03 pounds
12.0 g / 0.1 N
10 mm Stal (~0.2) 0.00 kg / 0.00 pounds
2.0 g / 0.0 N
15 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
20 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
30 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
50 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
The table below defines the estimated shear load sufficient to initiate the slippage of the magnet vertically against a upright steel wall (considering standard friction). The holding force depends on the separation distance between the magnet and the surface.

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 8x20 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.39 kg / 0.86 pounds
390.0 g / 3.8 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.26 kg / 0.57 pounds
260.0 g / 2.6 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.13 kg / 0.29 pounds
130.0 g / 1.3 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
0.65 kg / 1.43 pounds
650.0 g / 6.4 N
When hanging a element on a upright wall (e.g., a board), it you can count on just about 1/5 of nominal attraction strength. Gravitational force and a low friction coefficient cause that holders move down faster than they detach. Designing a wall mount? Remember that the sliding force is significantly lower than the perpendicular breakaway force. On a smooth steel, the magnet will slide down under a significantly smaller cargo. Using a rubber coating can drastically raise the stability.

Table 4: Material efficiency (saturation) - power losses
MW 8x20 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.13 kg / 0.29 pounds
130.0 g / 1.3 N
1 mm
25%
 0.33 kg / 0.72 pounds
325.0 g / 3.2 N
2 mm
50%
 0.65 kg / 1.43 pounds
650.0 g / 6.4 N
3 mm
75%
 0.98 kg / 2.15 pounds
975.0 g / 9.6 N
5 mm
100%
 1.30 kg / 2.87 pounds
1300.0 g / 12.8 N
10 mm
100%
 1.30 kg / 2.87 pounds
1300.0 g / 12.8 N
11 mm
100%
 1.30 kg / 2.87 pounds
1300.0 g / 12.8 N
12 mm
100%
 1.30 kg / 2.87 pounds
1300.0 g / 12.8 N
A thin sheet is incapable of absorb the entire magnetic field, which weakens actual performance of the magnet. If you attach a powerful product to a weak sheet, the flux will penetrate right through and the holding will be smaller. To achieve the maximum of this magnet's power, you need a suitably thick piece of steel. The material oversaturation means that on delicate walls (e.g., thin profiles), the product works worse. We recommend selecting the steel dimension according to the table below.

Table 5: Thermal resistance (material behavior) - resistance threshold
MW 8x20 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 1.30 kg / 2.87 pounds
1300.0 g / 12.8 N
 OK
40 °C -2.2% 1.27 kg / 2.80 pounds
1271.4 g / 12.5 N
 OK
60 °C -4.4% 1.24 kg / 2.74 pounds
1242.8 g / 12.2 N
 OK
80 °C -6.6% 1.21 kg / 2.68 pounds
1214.2 g / 11.9 N
100 °C -28.8% 0.93 kg / 2.04 pounds
925.6 g / 9.1 N
Classic neodymiums lose parameters after exceeding the maximum temperature. Watch out for overheating – excessive heat can permanently damage this magnet. With every degree above norm, the neodymium's capacity briefly lowers. Do not use this magnet in hot environments exceeding its safe range. Ignoring the limit will lead to destruction of magnetism.
*Engineering note: Temperature resistance depends not only on the material grade, but also on the magnet's shape. Flat magnets (pancake types) may lose charge permanently at lower temperatures than long magnets. Warning indicator in the table signals permanent field degradation for this particular item.

Table 6: Magnet-Magnet interaction (attraction) - field collision
MW 8x20 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Sliding Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 11.40 kg / 25.12 pounds
6 154 Gs
1.71 kg / 3.77 pounds
1709 g / 16.8 N
 N/A
1 mm 8.76 kg / 19.31 pounds
10 632 Gs
1.31 kg / 2.90 pounds
1314 g / 12.9 N
 7.88 kg / 17.38 pounds
~0 Gs
2 mm 6.52 kg / 14.37 pounds
9 174 Gs
0.98 kg / 2.16 pounds
978 g / 9.6 N
 5.87 kg / 12.94 pounds
~0 Gs
3 mm 4.76 kg / 10.49 pounds
7 837 Gs
0.71 kg / 1.57 pounds
714 g / 7.0 N
 4.28 kg / 9.44 pounds
~0 Gs
5 mm 2.46 kg / 5.43 pounds
5 637 Gs
0.37 kg / 0.81 pounds
369 g / 3.6 N
 2.22 kg / 4.88 pounds
~0 Gs
10 mm 0.51 kg / 1.12 pounds
2 561 Gs
0.08 kg / 0.17 pounds
76 g / 0.7 N
 0.46 kg / 1.01 pounds
~0 Gs
20 mm 0.05 kg / 0.10 pounds
778 Gs
0.01 kg / 0.02 pounds
7 g / 0.1 N
 0.04 kg / 0.09 pounds
~0 Gs
50 mm 0.00 kg / 0.00 pounds
107 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
 0.00 kg / 0.00 pounds
~0 Gs
60 mm 0.00 kg / 0.00 pounds
69 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
 0.00 kg / 0.00 pounds
~0 Gs
70 mm 0.00 kg / 0.00 pounds
48 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
 0.00 kg / 0.00 pounds
~0 Gs
80 mm 0.00 kg / 0.00 pounds
34 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
 0.00 kg / 0.00 pounds
~0 Gs
90 mm 0.00 kg / 0.00 pounds
25 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
 0.00 kg / 0.00 pounds
~0 Gs
100 mm 0.00 kg / 0.00 pounds
19 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
 0.00 kg / 0.00 pounds
~0 Gs
Two strong neodymiums interact from a much further distance than a magnet and steel setup. The connection of magnet-to-magnet creates a more powerful interaction and a larger range of operation. Designing a solid fastener? Apply two magnets instead of a neodymium and a striker plate. Be careful that when connecting a pair of magnets, the impact force is huge. The repulsion force is marginally weaker than the connection force, but still large.
*The magnetic induction between like poles reaches ~0 Gs in the exact middle of the gap (resulting from vector opposition).
Important: Calculations show shear force of two matching magnets (friction ~0.15 for Ni-Ni layer).

Table 7: Hazards (electronics) - precautionary measures
MW 8x20 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 6.5 cm
Hearing aid 10 Gs (1.0 mT) 5.0 cm
Mechanical watch 20 Gs (2.0 mT) 4.0 cm
Mobile device 40 Gs (4.0 mT) 3.0 cm
Car key 50 Gs (5.0 mT) 3.0 cm
Payment card 400 Gs (40.0 mT) 1.0 cm
HDD hard drive 600 Gs (60.0 mT) 1.0 cm
Extremely neodym field is a serious hazard to electronic devices and medical implants. These magnets generate a field that prevents correct functioning of sensitive medical devices. Notice: the invisible magnetic field penetrates the body and housings. Exceptional care must be taken by people with hearing aids and insulin pumps. Influence will be felt by: automatic timepieces, car keys, speakers, and screens. Do not place the magnet near cards, HDD media, or sensitive navigation tools.

Table 8: Dynamics (kinetic energy) - collision effects
MW 8x20 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 8.56 km/h
(2.38 m/s)
 0.02 J
30 mm 8.60 km/h
(2.39 m/s)
 0.02 J
50 mm 8.60 km/h
(2.39 m/s)
 0.02 J
100 mm 8.60 km/h
(2.39 m/s)
 0.02 J
Neodymium magnets are prone to chipping – a violent impact against metal risks their cracking. Pay attention to connection velocity – a magnet released freely speeds with massive force. Striking energy can destroy the magnet or dangerous crushing to skin. Hold the magnet firmly 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 magnet. Wear eye protection when handling with powerful specimens.

Table 9: Coating parameters (durability)
MW 8x20 / 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)
MW 8x20 / N38

Parameter Value SI Unit / Description
Magnetic Flux 3 457 Mx 34.6 µWb
Pc Coefficient 1.31 High (Stable)
Flux value passing through the pole surface. Key data when building generators and motors. Pc value determines the working geometry.

Table 11: Underwater work (magnet fishing)
MW 8x20 / N38

Environment Effective steel pull Effect
Air (land) 1.30 kg Standard
Water (riverbed) 1.49 kg
(+0.19 kg buoyancy gain)
+14.5%
Rust risk: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!
Contrary to myths, water does not block the magnetic field. Buoyancy helps in lifting finds.

1. Vertical hold

*Warning: On a vertical wall, the magnet retains merely approx. 20-30% of its max power.

2. Steel thickness impact

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

3. Heat tolerance

*For standard magnets, the max working temp is 80°C.

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 1.31

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.

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: 010475-2026
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This product is a very strong cylinder magnet, made from durable NdFeB material, which, at dimensions of Ø8x20 mm, guarantees optimal power. This specific item boasts high dimensional repeatability and professional build quality, making it an excellent solution for professional engineers and designers. As a magnetic rod with impressive force (approx. 1.30 kg), this product is in stock from our warehouse in Poland, ensuring rapid order fulfillment. Additionally, its Ni-Cu-Ni coating secures it against corrosion in typical operating conditions, guaranteeing an aesthetic appearance and durability for years.
It successfully proves itself in modeling, advanced robotics, and broadly understood industry, serving as a fastening or actuating element. Thanks to the pull force of 12.75 N with a weight of only 7.54 g, this rod is indispensable in miniature devices and wherever low weight is crucial.
Due to the delicate structure of the ceramic sinter, we absolutely advise against force-fitting (so-called press-fit), as this risks immediate cracking of this professional component. To ensure long-term durability in automation, anaerobic resins are used, which are safe for nickel and fill the gap, guaranteeing durability of the connection.
Grade N38 is the most frequently chosen standard for professional neodymium magnets, offering a great economic balance and operational stability. If you need the strongest magnets in the same volume (Ø8x20), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our warehouse.
The presented product is a neodymium magnet with precisely defined parameters: diameter 8 mm and height 20 mm. The value of 12.75 N means that the magnet is capable of holding a weight many times exceeding its own mass of 7.54 g. The product has a [NiCuNi] coating, which protects the surface against external factors, 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 8 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.

Advantages as well as disadvantages of neodymium magnets.

Strengths

In addition to their magnetic efficiency, neodymium magnets provide the following advantages:
  • They do not lose power, even over around 10 years – the decrease in strength is only ~1% (theoretically),
  • They retain their magnetic properties even under external field action,
  • A magnet with a metallic silver surface looks better,
  • Neodymium magnets create maximum magnetic induction on a their surface, which allows for strong attraction,
  • Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and are able to act (depending on the shape) even at a temperature of 230°C or more...
  • In view of the ability of flexible molding and customization to custom needs, neodymium magnets can be manufactured in a wide range of shapes and sizes, which increases their versatility,
  • Fundamental importance in innovative solutions – they find application in mass storage devices, motor assemblies, advanced medical instruments, and industrial machines.
  • Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in compact dimensions, which allows their use in small systems

Disadvantages

Disadvantages of neodymium magnets:
  • To avoid cracks under impact, we suggest using special steel holders. Such a solution protects the magnet and simultaneously increases its durability.
  • We warn that neodymium magnets can reduce their power at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 230°C.
  • Magnets exposed to a humid environment can corrode. Therefore while using outdoors, we recommend using waterproof magnets made of rubber, plastic or other material protecting against moisture
  • We recommend cover - magnetic mount, due to difficulties in creating nuts inside the magnet and complicated forms.
  • Possible danger to health – tiny shards of magnets can be dangerous, in case of ingestion, which gains importance in the context of child health protection. Furthermore, small components of these devices are able to be problematic in diagnostics medical after entering the body.
  • High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which hinders application in large quantities

Pull force analysis

Optimal lifting capacity of a neodymium magnet – what it depends on?

Breakaway force was defined for the most favorable conditions, including:
  • with the contact of a sheet made of low-carbon steel, guaranteeing maximum field concentration
  • whose thickness is min. 10 mm
  • with an polished contact surface
  • without the slightest insulating layer between the magnet and steel
  • during pulling in a direction perpendicular to the mounting surface
  • at standard ambient temperature

Impact of factors on magnetic holding capacity in practice

It is worth knowing that the application force will differ depending on the following factors, starting with the most relevant:
  • Distance (betwixt the magnet and the plate), since even a very small distance (e.g. 0.5 mm) can cause a decrease in lifting capacity by up to 50% (this also applies to varnish, rust or dirt).
  • Load vector – highest force is available only during pulling at a 90° angle. The shear force of the magnet along the surface is typically several times lower (approx. 1/5 of the lifting capacity).
  • Plate thickness – insufficiently thick sheet does not accept the full field, causing part of the flux to be lost into the air.
  • Material type – the best choice is pure iron steel. Stainless steels may have worse magnetic properties.
  • Base smoothness – the more even the surface, the larger the contact zone and stronger the hold. Roughness acts like micro-gaps.
  • Thermal factor – high temperature reduces pulling force. Exceeding the limit temperature can permanently demagnetize the magnet.

Lifting capacity was determined using a polished steel plate of suitable thickness (min. 20 mm), under perpendicular pulling force, whereas under shearing force the lifting capacity is smaller. In addition, even a small distance between the magnet and the plate lowers the lifting capacity.

Safe handling of neodymium magnets
Threat to electronics

Device Safety: Strong magnets can ruin data carriers and sensitive devices (heart implants, hearing aids, timepieces).

Conscious usage

Use magnets with awareness. Their powerful strength can surprise even experienced users. Plan your moves and do not underestimate their force.

Demagnetization risk

Standard neodymium magnets (N-type) lose magnetization when the temperature surpasses 80°C. Damage is permanent.

Medical implants

For implant holders: Strong magnetic fields affect medical devices. Keep minimum 30 cm distance or request help to handle the magnets.

Fire risk

Mechanical processing of neodymium magnets poses a fire hazard. Neodymium dust oxidizes rapidly with oxygen and is hard to extinguish.

This is not a toy

Only for adults. Tiny parts pose a choking risk, leading to serious injuries. Keep away from kids and pets.

GPS Danger

Be aware: rare earth magnets produce a field that disrupts precision electronics. Keep a safe distance from your phone, device, and GPS.

Crushing risk

Pinching hazard: The attraction force is so great that it can cause hematomas, crushing, and even bone fractures. Protective gloves are recommended.

Avoid contact if allergic

Warning for allergy sufferers: The nickel-copper-nickel coating consists of nickel. If an allergic reaction occurs, immediately stop handling magnets and use protective gear.

Magnet fragility

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

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