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MW 16x3 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010033

GTIN/EAN: 5906301810322

5.00
Load capacity 2.97 kg / 29.11 N Magnetic Induction 217.61 mT / 2176 Gs
Diameter Ø
16 mm [±0,1 mm]
Height
3 mm [±0,1 mm]
Weight
4.52 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel
view technical data »

1.410 zł net / pcs

1.734 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 16x3 / N38 - cylindrical magnet

Specification / characteristics - MW 16x3 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010033
GTIN/EAN 5906301810322
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 16 mm [±0,1 mm]
Height 3 mm [±0,1 mm]
Weight 4.52 g
Magnetization Direction ↑ axial
Load capacity ~ ? 2.97 kg / 29.11 N
Magnetic Induction ~ ? 217.61 mT / 2176 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 16x3 / N38 - cylindrical 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 310 °C
Curie Temperature TF 590 °F
Specific resistance 150 μΩ⋅cm
Bending strength 250 MPa
Compressive strength 1000~1100 MPa
Thermal expansion parallel (∥) to orientation (M) (3-4) x 10-6 °C-1
Thermal expansion perpendicular (⊥) to orientation (M) -(1-3) x 10-6 °C-1
Young's modulus 1.7 x 104 kg/mm²

Physical modeling of the assembly - data

Presented information are the result of a mathematical calculation. Values were calculated on models for the class Nd2Fe14B. Actual parameters may differ. Treat these data as a reference point for designers.

Table 1: Static pull force (force vs gap) - power drop
MW 16x3 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 2176 Gs
217.6 mT
 2.97 kg / 6.55 LBS
2970.0 g / 29.1 N
 strong
1 mm 2004 Gs
200.4 mT
 2.52 kg / 5.55 LBS
2519.3 g / 24.7 N
 strong
2 mm 1782 Gs
178.2 mT
 1.99 kg / 4.39 LBS
1993.2 g / 19.6 N
 low risk
3 mm 1543 Gs
154.3 mT
 1.49 kg / 3.29 LBS
1494.0 g / 14.7 N
 low risk
5 mm 1098 Gs
109.8 mT
 0.76 kg / 1.67 LBS
756.6 g / 7.4 N
 low risk
10 mm 439 Gs
43.9 mT
 0.12 kg / 0.27 LBS
120.9 g / 1.2 N
 low risk
15 mm 195 Gs
19.5 mT
 0.02 kg / 0.05 LBS
23.9 g / 0.2 N
 low risk
20 mm 99 Gs
9.9 mT
 0.01 kg / 0.01 LBS
6.2 g / 0.1 N
 low risk
30 mm 35 Gs
3.5 mT
 0.00 kg / 0.00 LBS
0.8 g / 0.0 N
 low risk
50 mm 8 Gs
0.8 mT
 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
 low risk
Magnetic force drops drastically with every subsequent millimeter of gap. Note that even a very thin break (e.g., contamination, varnish, dust) noticeably weakens the grip. Magnetic products hold optimally at the point of direct contact; air break drastically cuts the power. Analyze how rapidly the parameters plummet, when the product does not touch flatly to the metal substrate. When calculating the assembly, avoid redundant distances.

Table 2: Shear capacity (vertical surface)
MW 16x3 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.59 kg / 1.31 LBS
594.0 g / 5.8 N
1 mm Stal (~0.2) 0.50 kg / 1.11 LBS
504.0 g / 4.9 N
2 mm Stal (~0.2) 0.40 kg / 0.88 LBS
398.0 g / 3.9 N
3 mm Stal (~0.2) 0.30 kg / 0.66 LBS
298.0 g / 2.9 N
5 mm Stal (~0.2) 0.15 kg / 0.34 LBS
152.0 g / 1.5 N
10 mm Stal (~0.2) 0.02 kg / 0.05 LBS
24.0 g / 0.2 N
15 mm Stal (~0.2) 0.00 kg / 0.01 LBS
4.0 g / 0.0 N
20 mm Stal (~0.2) 0.00 kg / 0.00 LBS
2.0 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 following data presents the estimated force needed to start the sliding of the magnet down against a vertical metal surface (considering typical friction). The holding force is relative to the gap size between the magnet and the surface.

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MW 16x3 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.89 kg / 1.96 LBS
891.0 g / 8.7 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.59 kg / 1.31 LBS
594.0 g / 5.8 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.30 kg / 0.65 LBS
297.0 g / 2.9 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
1.49 kg / 3.27 LBS
1485.0 g / 14.6 N
When placing a element on a vertical wall (e.g., a car body), it will only hold just about 1/5 of nominal attraction strength. Gravity and a weak degree of grip mean that magnets move down faster than they pop off the substrate. Planning a wall mount? Note that the shear force is noticeably lower than the perpendicular breakaway force. On a smooth steel, the magnet will slide down under a noticeably lighter weight. Utilizing a rubberized layer can drastically improve the result.

Table 4: Material efficiency (saturation) - sheet metal selection
MW 16x3 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.30 kg / 0.65 LBS
297.0 g / 2.9 N
1 mm
25%
 0.74 kg / 1.64 LBS
742.5 g / 7.3 N
2 mm
50%
 1.49 kg / 3.27 LBS
1485.0 g / 14.6 N
3 mm
75%
 2.23 kg / 4.91 LBS
2227.5 g / 21.9 N
5 mm
100%
 2.97 kg / 6.55 LBS
2970.0 g / 29.1 N
10 mm
100%
 2.97 kg / 6.55 LBS
2970.0 g / 29.1 N
11 mm
100%
 2.97 kg / 6.55 LBS
2970.0 g / 29.1 N
12 mm
100%
 2.97 kg / 6.55 LBS
2970.0 g / 29.1 N
A thin metal plate cannot take in the full magnetic flux, which weakens actual performance of the holder. If you install a neodymium to a thin surface, the magnetism will penetrate right through and the pull force will drop sharply. To utilize 100% of this magnet's potential, you require a sufficiently solid backing of metal. The saturation effect causes that on thin elements (e.g., car bodies), the magnet shows lower pull force. We suggest choosing the steel dimension based on the following data.

Table 5: Thermal stability (stability) - resistance threshold
MW 16x3 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 2.97 kg / 6.55 LBS
2970.0 g / 29.1 N
 OK
40 °C -2.2% 2.90 kg / 6.40 LBS
2904.7 g / 28.5 N
 OK
60 °C -4.4% 2.84 kg / 6.26 LBS
2839.3 g / 27.9 N
80 °C -6.6% 2.77 kg / 6.12 LBS
2774.0 g / 27.2 N
100 °C -28.8% 2.11 kg / 4.66 LBS
2114.6 g / 20.7 N
Standard neodymium magnets change their properties strength after exceeding the maximum temperature. Watch out for overheating – excessive heat can irreversibly damage this product. As the temperature rises, the neodymium's capacity temporarily decreases. Do not use this product close to heaters higher than its operating temperature limit. Ignoring the limit will lead to destruction of magnetic properties.
*Engineering note: Thermal stability depends not only on the material grade, but also on the magnet's shape. Low-profile magnets (pancake types) are more susceptible to demagnetization at lower temperatures than taller cylinders. Warning indicator in the table indicates permanent field degradation for this specific geometry.

Table 6: Two magnets (repulsion) - forces in the system
MW 16x3 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 5.87 kg / 12.93 LBS
3 716 Gs
0.88 kg / 1.94 LBS
880 g / 8.6 N
 N/A
1 mm 5.46 kg / 12.03 LBS
4 197 Gs
0.82 kg / 1.80 LBS
819 g / 8.0 N
 4.91 kg / 10.83 LBS
~0 Gs
2 mm 4.98 kg / 10.97 LBS
4 007 Gs
0.75 kg / 1.65 LBS
746 g / 7.3 N
 4.48 kg / 9.87 LBS
~0 Gs
3 mm 4.46 kg / 9.83 LBS
3 794 Gs
0.67 kg / 1.48 LBS
669 g / 6.6 N
 4.01 kg / 8.85 LBS
~0 Gs
5 mm 3.43 kg / 7.56 LBS
3 326 Gs
0.51 kg / 1.13 LBS
514 g / 5.0 N
 3.09 kg / 6.80 LBS
~0 Gs
10 mm 1.49 kg / 3.30 LBS
2 196 Gs
0.22 kg / 0.49 LBS
224 g / 2.2 N
 1.35 kg / 2.97 LBS
~0 Gs
20 mm 0.24 kg / 0.53 LBS
878 Gs
0.04 kg / 0.08 LBS
36 g / 0.4 N
 0.21 kg / 0.47 LBS
~0 Gs
50 mm 0.00 kg / 0.01 LBS
113 Gs
0.00 kg / 0.00 LBS
1 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
60 mm 0.00 kg / 0.00 LBS
70 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
46 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
32 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
23 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
17 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
Two magnets interact from a wider radius than a neodymium and metal setup. The setup of magnet-to-magnet produces a massive flux and a further horizon of action. Want to build a powerful holder? Apply two magnets instead of a neodymium and a striker plate. Be careful that when bringing together two magnets, the pinch force is extreme. The levitation is a bit weaker than the connection force, but still large.
*The magnetic induction for N-N configuration drops to ~0 Gs at the midpoint of the gap (due to field cancellation).
Important: Results demonstrate friction force of dual same magnets (friction ~0.15 for Ni-Ni layer).

Table 7: Hazards (implants) - precautionary measures
MW 16x3 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 6.0 cm
Hearing aid 10 Gs (1.0 mT) 5.0 cm
Timepiece 20 Gs (2.0 mT) 4.0 cm
Phone / Smartphone 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) 1.5 cm
HDD hard drive 600 Gs (60.0 mT) 1.0 cm
Extremely neodym field poses a serious hazard to electronics as well as medical implants. These magnets produce a flux that prevents correct functioning of digital equipment. Remember: the invisible magnetic field penetrates the body and plastic. Exceptional care must be taken by people with cochlear implants and drug dispensers. Also at risk are: mechanical watches, remotes, speakers, and displays. Do not bring the product near payment cards, hard drives, or precise measuring instruments.

Table 8: Impact energy (kinetic energy) - warning
MW 16x3 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 24.50 km/h
(6.80 m/s)
 0.10 J
30 mm 24.93 km/h
(6.92 m/s)
 0.11 J
50 mm 24.93 km/h
(6.93 m/s)
 0.11 J
100 mm 24.94 km/h
(6.93 m/s)
 0.11 J
Neodymium magnets are prone to chipping – a collision with steel risks their cracking. Watch the impact speed – a magnet released freely speeds with massive force. Striking energy can trigger coating fragments or painful pinches to fingers. Hold the magnet firmly during bringing near metal so it doesn't hit violently against the metal. A contact at a velocity of dozens of km/h almost guarantees destruction of the magnet. Wear safety glasses when working with large magnets.

Table 9: Surface protection spec
MW 16x3 / 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. Note the thickness of the protective layer.

Table 10: Construction data (Flux)
MW 16x3 / N38

Parameter Value SI Unit / Description
Magnetic Flux 5 141 Mx 51.4 µWb
Pc Coefficient 0.27 Low (Flat)
Flux value passing through the magnet pole. Essential parameter for generator designers as well as sensors. The Pc coefficient defines the magnet's operating point.

Table 11: Submerged application
MW 16x3 / N38

Environment Effective steel pull Effect
Air (land) 2.97 kg Standard
Water (riverbed) 3.40 kg
(+0.43 kg buoyancy gain)
+14.5%
Rust risk: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.
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

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

2. Efficiency vs thickness

*Thin metal sheet (e.g. computer case) severely reduces the holding force.

3. Thermal stability

*For standard magnets, the safety limit is 80°C.

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.27

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

Chemical composition

iron (Fe) 64% – 68%
neodymium (Nd) 29% – 32%
boron (B) 1.1% – 1.2%
dysprosium (Dy) 0.5% – 2.0%
coating (Ni-Cu-Ni) < 0.05%

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: 010033-2026
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The offered product is an extremely powerful cylinder magnet, made from advanced NdFeB material, which, at dimensions of Ø16x3 mm, guarantees the highest energy density. This specific item is characterized by a tolerance of ±0.1mm and professional build quality, making it a perfect solution for professional engineers and designers. As a magnetic rod with impressive force (approx. 2.97 kg), this product is available off-the-shelf from our warehouse in Poland, ensuring quick order fulfillment. Additionally, its triple-layer Ni-Cu-Ni coating secures it against corrosion in standard operating conditions, guaranteeing 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 pull force of 29.11 N with a weight of only 4.52 g, this rod is indispensable in miniature devices and wherever low weight is crucial.
Since our magnets have a very precise dimensions, the recommended way is to glue them into holes with a slightly larger diameter (e.g., 16.1 mm) using epoxy glues. To ensure long-term durability in automation, specialized industrial adhesives are used, which do not react with the nickel coating and fill the gap, guaranteeing durability of the connection.
Grade N38 is the most frequently chosen 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 (Ø16x3), 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 16 mm and height 3 mm. The value of 29.11 N means that the magnet is capable of holding a weight many times exceeding its own mass of 4.52 g. The product has a [NiCuNi] coating, which protects the surface 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 16 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 diametrically if your project requires it.

Strengths and weaknesses of rare earth magnets.

Advantages

Besides their high retention, neodymium magnets are valued for these benefits:
  • They virtually do not lose power, because even after 10 years the decline in efficiency is only ~1% (in laboratory conditions),
  • They retain their magnetic properties even under external field action,
  • In other words, due to the smooth surface of silver, the element gains visual value,
  • Magnets have impressive magnetic induction on the working surface,
  • Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can function (depending on the shape) even at a temperature of 230°C or more...
  • In view of the ability of free shaping and adaptation to custom needs, magnetic components can be manufactured in a variety of geometric configurations, which amplifies use scope,
  • Significant place in modern industrial fields – they find application in hard drives, brushless drives, medical devices, and technologically advanced constructions.
  • Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in compact dimensions, which allows their use in miniature devices

Disadvantages

Disadvantages of neodymium magnets:
  • Susceptibility to cracking is one of their disadvantages. Upon intense impact they can break. We recommend keeping them in a special holder, which not only secures them against impacts but also raises their durability
  • Neodymium magnets decrease their power under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
  • They oxidize in a humid environment. For use outdoors we advise using waterproof magnets e.g. in rubber, plastic
  • Due to limitations in producing threads and complicated shapes in magnets, we propose using casing - magnetic holder.
  • Potential hazard to health – tiny shards of magnets pose a threat, if swallowed, which is particularly important in the context of child health protection. Furthermore, small elements of these products can be problematic in diagnostics medical when they are in the body.
  • Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Holding force characteristics

Highest magnetic holding force – what affects it?

The specified lifting capacity refers to the limit force, recorded under laboratory conditions, namely:
  • with the contact of a yoke made of special test steel, ensuring full magnetic saturation
  • with a cross-section minimum 10 mm
  • with a surface cleaned and smooth
  • without the slightest clearance between the magnet and steel
  • under vertical force vector (90-degree angle)
  • at temperature room level

Lifting capacity in real conditions – factors

Effective lifting capacity is affected by specific conditions, including (from most important):
  • Gap between surfaces – every millimeter of separation (caused e.g. by varnish or unevenness) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
  • Force direction – remember that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the maximum value.
  • Plate thickness – too thin sheet does not accept the full field, causing part of the power to be escaped into the air.
  • Metal type – not every steel attracts identically. Alloy additives worsen the interaction with the magnet.
  • Surface condition – ground elements ensure maximum contact, which improves force. Rough surfaces reduce efficiency.
  • Heat – neodymium magnets have a negative temperature coefficient. At higher temperatures they lose power, and in frost gain strength (up to a certain limit).

Lifting capacity was assessed using a steel plate with a smooth surface of optimal thickness (min. 20 mm), under perpendicular detachment force, however under shearing force the lifting capacity is smaller. Moreover, even a minimal clearance between the magnet’s surface and the plate decreases the load capacity.

Warnings
Crushing risk

Danger of trauma: The attraction force is so immense that it can cause blood blisters, pinching, and broken bones. Use thick gloves.

Flammability

Drilling and cutting of NdFeB material poses a fire risk. Magnetic powder oxidizes rapidly with oxygen and is hard to extinguish.

Compass and GPS

Remember: neodymium magnets produce a field that confuses sensitive sensors. Keep a separation from your phone, device, and navigation systems.

Safe distance

Avoid bringing magnets close to a wallet, computer, or TV. The magnetic field can irreversibly ruin these devices and erase data from cards.

Respect the power

Be careful. Rare earth magnets attract from a distance and snap with massive power, often faster than you can react.

Beware of splinters

NdFeB magnets are ceramic materials, meaning they are very brittle. Impact of two magnets leads to them breaking into small pieces.

Do not give to children

Always store magnets out of reach of children. Risk of swallowing is high, and the effects of magnets connecting inside the body are fatal.

Danger to pacemakers

Patients with a pacemaker have to keep an absolute distance from magnets. The magnetic field can stop the operation of the life-saving device.

Metal Allergy

Allergy Notice: The Ni-Cu-Ni coating consists of nickel. If skin irritation appears, immediately stop working with magnets and use protective gear.

Power loss in heat

Control the heat. Heating the magnet to high heat will permanently weaken its magnetic structure and strength.

Warning! Looking for details? Read our article: Why are neodymium magnets dangerous?