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MW 10x3 zestaw 10 szt. / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010541

GTIN/EAN: 5906301815327

Load capacity 2.15 kg / 21.08 N Magnetic Induction 318.70 mT / 3187 Gs
Diameter Ø
10 mm [±0,1 mm]
Height
3 mm [±0,1 mm]
Weight
17.7 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

product specifications »

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Frequently asked questions

Where can I buy strong cylindrical neodymium magnets?
See the available cylinders in the DHIT catalogue. Compare dimensions, grade and the pull-force value on each product card; grade alone does not determine the pull force of a finished magnet.
Can a small cylindrical magnet provide a strong grip for precise workshop work?
Yes, but size alone is not enough to predict the result. Geometry, the steel surface and the direction of load affect the grip. Compare the specifications of the selected dimensions on their product cards.
Which cylindrical magnet can work at a higher temperature?
Check the operating-temperature limit of the particular model rather than assuming one limit for all N grades. The offered N52 models are rated up to 60°C. For hotter applications, ask for a product with a confirmed specification for the actual working temperature.

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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Product card - MW 10x3 zestaw 10 szt. / N38 - cylindrical magnet

Specification / characteristics - MW 10x3 zestaw 10 szt. / N38 - cylindrical magnet

properties
properties values
Cat. no. 010541
GTIN/EAN 5906301815327
Distributor Dhit sp. z o.o.
Country of origin Poland / China / Germany
Customs code 85059029
Diameter Ø 10 mm [±0,1 mm]
Height 3 mm [±0,1 mm]
Weight 17.7 g
Magnetization Direction ↑ axial
Load capacity ~ ? 2.15 kg / 21.08 N
Magnetic Induction ~ ? 318.70 mT / 3187 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 10x3 zestaw 10 szt. / 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 magnet - technical parameters

The following information are the direct effect of a engineering analysis. Values were calculated on models for the material Nd2Fe14B. Operational parameters may differ from theoretical values. Treat these data as a supplementary guide during assembly planning.

Table 1: Static force (force vs gap) - interaction chart
MW 10x3 zestaw 10 szt. / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 3185 Gs
318.5 mT
 2.15 kg / 4.74 pounds
2150.0 g / 21.1 N
 strong
1 mm 2657 Gs
265.7 mT
 1.50 kg / 3.30 pounds
1496.2 g / 14.7 N
 safe
2 mm 2081 Gs
208.1 mT
 0.92 kg / 2.02 pounds
918.1 g / 9.0 N
 safe
3 mm 1573 Gs
157.3 mT
 0.52 kg / 1.16 pounds
524.4 g / 5.1 N
 safe
5 mm 874 Gs
87.4 mT
 0.16 kg / 0.36 pounds
161.7 g / 1.6 N
 safe
10 mm 241 Gs
24.1 mT
 0.01 kg / 0.03 pounds
12.3 g / 0.1 N
 safe
15 mm 92 Gs
9.2 mT
 0.00 kg / 0.00 pounds
1.8 g / 0.0 N
 safe
20 mm 44 Gs
4.4 mT
 0.00 kg / 0.00 pounds
0.4 g / 0.0 N
 safe
30 mm 14 Gs
1.4 mT
 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
 safe
50 mm 3 Gs
0.3 mT
 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
 safe
Grip strength weakens significantly with every mm of spacing. Remember that every additional insulation layer (e.g., contamination, paint, dust) significantly diminishes the holding power. Magnets hold optimally in perfect adhesion; gap kills the power. See how quickly the load capacity fall, when the product does not touch tightly to the steel surface. When planning the arrangement, discard unnecessary gaps.

Table 2: Vertical force (vertical surface)
MW 10x3 zestaw 10 szt. / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Raw steel (µ ≈ 0.2) 0.43 kg / 0.95 pounds
430.0 g / 4.2 N
1 mm Raw steel (µ ≈ 0.2) 0.30 kg / 0.66 pounds
300.0 g / 2.9 N
2 mm Raw steel (µ ≈ 0.2) 0.18 kg / 0.41 pounds
184.0 g / 1.8 N
3 mm Raw steel (µ ≈ 0.2) 0.10 kg / 0.23 pounds
104.0 g / 1.0 N
5 mm Raw steel (µ ≈ 0.2) 0.03 kg / 0.07 pounds
32.0 g / 0.3 N
10 mm Raw steel (µ ≈ 0.2) 0.00 kg / 0.00 pounds
2.0 g / 0.0 N
15 mm Raw steel (µ ≈ 0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
20 mm Raw steel (µ ≈ 0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
30 mm Raw steel (µ ≈ 0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
50 mm Raw steel (µ ≈ 0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
This section indicates the theoretical holding capacity required to initiate the sliding of the magnet vertically along a upright metal surface (considering standard friction). This value varies with the air gap between the magnet and the surface.

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MW 10x3 zestaw 10 szt. / N38

Surface type Friction coefficient / % Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% of nominal force
0.64 kg / 1.42 pounds
645.0 g / 6.3 N
Painted steel (standard)
µ = 0.2 20% of nominal force
0.43 kg / 0.95 pounds
430.0 g / 4.2 N
Oily/slippery steel
µ = 0.1 10% of nominal force
0.22 kg / 0.47 pounds
215.0 g / 2.1 N
Magnet with anti-slip rubber
µ = 0.5 50% of nominal force
1.08 kg / 2.37 pounds
1075.0 g / 10.5 N
When mounting a element on a upright plane (e.g., a board), it you can count on barely about 20%-30% of its nominal power. Gravitational force as well as a low friction coefficient mean that magnets move down faster than they detach. Planning a vertical fastening? Consider that the sliding force is much weaker than the maximum static pull force. On a painted metal, the element will slip down under a noticeably lighter weight. Using a rubber pad can effectively increase the grip.

Table 4: Material efficiency (substrate influence) - power losses
MW 10x3 zestaw 10 szt. / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.22 kg / 0.47 pounds
215.0 g / 2.1 N
1 mm
25%
 0.54 kg / 1.18 pounds
537.5 g / 5.3 N
2 mm
50%
 1.08 kg / 2.37 pounds
1075.0 g / 10.5 N
3 mm
75%
 1.61 kg / 3.55 pounds
1612.5 g / 15.8 N
5 mm
100%
 2.15 kg / 4.74 pounds
2150.0 g / 21.1 N
10 mm
100%
 2.15 kg / 4.74 pounds
2150.0 g / 21.1 N
11 mm
100%
 2.15 kg / 4.74 pounds
2150.0 g / 21.1 N
12 mm
100%
 2.15 kg / 4.74 pounds
2150.0 g / 21.1 N
A thin metal plate is unable to absorb the entire magnetic field, which wastes potential of the holder. If you install a neodymium to a too thin substrate, the flux will pass right through and the holding will be smaller. To utilize 100% of this magnet's potential, you need a suitably thick backing of metal. The saturation phenomenon means that on thin elements (e.g., car bodies), the holder holds weaker. We advise picking the steel thickness based on the following data.

Table 5: Thermal stability (material behavior) - power drop
MW 10x3 zestaw 10 szt. / N38

Magnet temperature (°C) Force change relative to 20°C Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 2.15 kg / 4.74 pounds
2150.0 g / 21.1 N
 Estimate
40 °C -4.4% 2.06 kg / 4.53 pounds
2056.4 g / 20.2 N
 Estimate
60 °C -8.6% 1.96 kg / 4.33 pounds
1965.0 g / 19.3 N
 Estimate
80 °C -12.8% 1.88 kg / 4.13 pounds
1875.6 g / 18.4 N
 Material limit
100 °C — — Out of range — no model
The table estimates the reversible force change relative to 20°C, assuming a Br coefficient of -0.11%/°C and force proportional to Br². This is a simplified model with unchanged contact and geometry, not a measurement. Above the material limit, neither force nor irreversible magnetization loss is predicted.
The temperature limit comes from this product’s material data. Permissible conditions also depend on geometry and the magnetic circuit. Without B-H curves for the specific grade and temperature, Pc alone does not determine irreversible demagnetization. Values within the material range do not guarantee the allowable temperature of the complete assembly.

Table 6: Magnet-Magnet interaction (repulsion) - field range
MW 10x3 zestaw 10 szt. / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 4.91 kg / 10.83 pounds
4 754 Gs
0.74 kg / 1.62 pounds
737 g / 7.2 N
 N/A
1 mm 4.18 kg / 9.22 pounds
5 877 Gs
0.63 kg / 1.38 pounds
627 g / 6.2 N
 3.76 kg / 8.30 pounds
~0 Gs
2 mm 3.42 kg / 7.54 pounds
5 314 Gs
0.51 kg / 1.13 pounds
513 g / 5.0 N
 3.08 kg / 6.78 pounds
~0 Gs
3 mm 2.71 kg / 5.98 pounds
4 732 Gs
0.41 kg / 0.90 pounds
407 g / 4.0 N
 2.44 kg / 5.38 pounds
~0 Gs
5 mm 1.59 kg / 3.52 pounds
3 630 Gs
0.24 kg / 0.53 pounds
239 g / 2.3 N
 1.44 kg / 3.16 pounds
~0 Gs
10 mm 0.37 kg / 0.81 pounds
1 747 Gs
0.06 kg / 0.12 pounds
55 g / 0.5 N
 0.33 kg / 0.73 pounds
~0 Gs
20 mm 0.03 kg / 0.06 pounds
483 Gs
0.00 kg / 0.01 pounds
4 g / 0.0 N
 0.03 kg / 0.06 pounds
~0 Gs
50 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
60 mm 0.00 kg / 0.00 pounds
29 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
19 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
13 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
9 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
7 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
 0.00 kg / 0.00 pounds
~0 Gs
Two magnetic products attract each other from a much further distance than a magnet and steel combination. The setup of magnet-to-magnet creates a more powerful interaction and a larger range of action. Designing a powerful holder? Use a pair of magnets instead of a neodymium and a striker plate. Be careful that when bringing together two magnets, the impact force is huge. The repulsion force is slightly lower than the attraction, but still impressive.
*Flux density in repulsion mode reaches ~0 Gs in the exact middle of the gap (resulting from vector opposition).
Important: Estimates refer to sliding force of two same neodymium magnets (friction ~0.15 for Ni-Ni coating).

Table 7: Axial field levels — not safety zones
MW 10x3 zestaw 10 szt. / N38

Field level (Gs) mT Model distance (cm)
< 5 Gs < 0.5 mT 4.5 cm
< 10 Gs < 1.0 mT 3.5 cm
< 20 Gs < 2.0 mT 3.0 cm
< 40 Gs < 4.0 mT 2.5 cm
< 50 Gs < 5.0 mT 2.0 cm
< 400 Gs < 40.0 mT 1.0 cm
< 600 Gs < 60.0 mT 1.0 cm
Reference field levels for a model of one magnet, on its axis in air, with a 5 mm distance step. These are not device immunity limits or safe distances for implants. Do not use this table to assess the safety of a pacemaker, defibrillator or other implant; follow the device manufacturer’s and your clinician’s guidance. Steel and other magnets change the field distribution.

Table 8: Dynamics (kinetic energy) - warning
MW 10x3 zestaw 10 szt. / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 8.15 km/h
(2.26 m/s)
 0.05 J
30 mm 8.17 km/h
(2.27 m/s)
 0.05 J
50 mm 8.18 km/h
(2.27 m/s)
 0.05 J
100 mm 8.18 km/h
(2.27 m/s)
 0.05 J
Neodymium magnets are very brittle – a collision with steel can result in shattering. Pay attention to connection velocity – a magnet released freely becomes dangerous. Kinetic force can cause material chips or dangerous crushing to fingers. Hold the magnet firmly during installation so it doesn't slam with momentum against the metal. A collision at high speed means shattering of the neodymium. Use safety goggles when playing with large magnets.

Table 9: Surface protection spec
MW 10x3 zestaw 10 szt. / N38

Technical parameter Value / Description
Coating type [NiCuNi] Nickel
Layer structure Nickel - Copper - Nickel
Layer thickness 10-20 µm
Salt spray test (SST) ? 24 h
Recommended environment Indoors only (dry)
The SST (salt spray test) is an industry standard for determining coating lifespan in harsh conditions. Note the thickness of the protective layer.

Table 10: Construction data (Flux)
MW 10x3 zestaw 10 szt. / N38

Parameter Value SI Unit / Description
Magnetic Flux 2 694 Mx 26.9 µWb
Pc Coefficient 0.40 Low (Flat)
Total magnetic flux passing through the pole surface. Essential parameter for generator designers and motors. Pc value determines the magnet's operating point.

Table 11: Submerged application
MW 10x3 zestaw 10 szt. / N38

Environment Effective steel pull Effect
Air (land) 2.15 kg Standard
Water (riverbed) 2.46 kg
(+0.31 kg buoyancy gain)
+14.5%
Corrosion 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. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Shear force

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

2. Steel saturation

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

3. Heat tolerance

N38: the maximum material working temperature is 80°C. Permitted conditions also depend on the shape and magnetic circuit.

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.40

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 and environmental data

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: 010541-2026
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This product is an incredibly powerful cylindrical magnet, made from durable NdFeB material, which, with dimensions of Ø10x3 mm, guarantees the highest energy density. This specific item features high dimensional repeatability and industrial build quality, making it a perfect solution for professional engineers and designers. As a magnetic rod with impressive force (approx. 2.15 kg), this product is available off-the-shelf from our warehouse in Poland, ensuring rapid order fulfillment. Additionally, its triple-layer Ni-Cu-Ni coating shields it against corrosion in standard 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 21.08 N with a weight of only 17.7 g, this rod is indispensable in miniature devices and wherever every gram matters.
Due to the delicate structure of the ceramic sinter, we absolutely advise against force-fitting (so-called press-fit), as this risks chipping the coating of this professional component. To ensure stability in automation, anaerobic resins are used, which are safe for nickel and fill the gap, guaranteeing durability of the connection.
Choose the material grade together with the dimensions and working conditions. A grade designation alone does not determine the pull force of the finished magnet. Check the properties and working temperature of this specific model on its product card; contact us before ordering for an unusual application.
This model is characterized by dimensions Ø10x3 mm, which, at a weight of 17.7 g, makes it an element with impressive magnetic energy density. The key parameter here is the lifting capacity amounting to approximately 2.15 kg (force ~21.08 N), which, with such defined dimensions, proves the high power of the NdFeB material. The product has a [NiCuNi] coating, which protects the surface against external factors, giving it an aesthetic, silvery shine.
This cylinder is magnetized axially (along the height of 3 mm), which means that the N and S poles are located on the flat, circular surfaces. Such an arrangement is standard 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.

Pros and cons of Nd2Fe14B magnets.

Strengths

Besides their tremendous pulling force, neodymium magnets offer the following advantages:
  • They do not lose power, even after nearly 10 years – the decrease in lifting capacity is only ~1% (based on measurements),
  • They do not lose their magnetic properties even under external field action,
  • Thanks to the shiny finish, the plating of Ni-Cu-Ni, gold-plated, or silver-plated gives an elegant appearance,
  • The surface of neodymium magnets generates a concentrated magnetic field – this is a key feature,
  • Thanks to resistance to high temperature, they can operate (depending on the form) even at temperatures up to 230°C and higher...
  • Possibility of exact machining as well as adjusting to complex applications,
  • Universal use in modern technologies – they are used in mass storage devices, electric drive systems, medical devices, and technologically advanced constructions.
  • Thanks to their power density, small magnets offer high operating force, in miniature format,

Cons

Cons 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 special housings. Such protection not only protects the magnet but also increases its resistance to damage
  • Do not exceed this material temperature limit: 80°C. Overheating may permanently weaken the magnet.
  • Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material immune to moisture, when using outdoors
  • Limited ability of producing nuts in the magnet and complicated forms - preferred is casing - magnetic holder.
  • Health risk related to microscopic parts of magnets are risky, when accidentally swallowed, which gains importance in the context of child safety. Additionally, tiny parts of these magnets can be problematic in diagnostics medical after entering the body.
  • Due to complex production process, their price exceeds standard values,

Pull force analysis

Maximum magnetic pulling force – what affects it?

The load parameter shown represents the maximum value, recorded under laboratory conditions, specifically:
  • with the application of a sheet made of special test steel, ensuring full magnetic saturation
  • with a cross-section of at least 10 mm
  • with a surface cleaned and smooth
  • without the slightest clearance between the magnet and steel
  • during detachment in a direction vertical to the plane
  • at ambient temperature room level

Key elements affecting lifting force

During everyday use, the actual holding force is determined by many variables, ranked from most significant:
  • Air gap (between the magnet and the plate), because even a tiny clearance (e.g. 0.5 mm) results in a drastic drop in force by up to 50% (this also applies to varnish, rust or dirt).
  • Loading method – declared lifting capacity refers to detachment vertically. When attempting to slide, the magnet holds significantly lower power (often approx. 20-30% of nominal force).
  • Metal thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field passes through the material instead of generating force.
  • Steel type – low-carbon steel attracts best. Alloy admixtures lower magnetic properties and lifting capacity.
  • Surface finish – full contact is possible only on polished steel. Rough texture create air cushions, reducing force.
  • Thermal factor – high temperature weakens pulling force. Exceeding the limit temperature can permanently damage the magnet.

Lifting capacity was measured by applying a polished steel plate of optimal thickness (min. 20 mm), under perpendicular detachment force, however under shearing force the holding force is lower. Moreover, even a small distance between the magnet and the plate reduces the holding force.

Warnings
Pacemakers

People with a ICD have to keep an safe separation from magnets. The magnetic field can interfere with the operation of the life-saving device.

Product not for children

NdFeB magnets are not toys. Eating a few magnets may result in them connecting inside the digestive tract, which poses a critical condition and necessitates urgent medical intervention.

Handling rules

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

Electronic devices

Powerful magnetic fields can destroy records on credit cards, hard drives, and storage devices. Maintain a gap of at least 10 cm.

Risk of cracking

Despite metallic appearance, the material is brittle and cannot withstand shocks. Avoid impacts, as the magnet may crumble into sharp, dangerous pieces.

Threat to navigation

GPS units and mobile phones are extremely sensitive to magnetism. Close proximity with a powerful NdFeB magnet can decalibrate the internal compass in your phone.

Avoid contact if allergic

Warning for allergy sufferers: The nickel-copper-nickel coating contains nickel. If redness appears, immediately stop working with magnets and use protective gear.

Physical harm

Mind your fingers. Two large magnets will snap together immediately with a force of massive weight, destroying everything in their path. Exercise extreme caution!

Demagnetization risk

Do not exceed the maximum operating temperature stated in the specifications of the particular product. The limit depends on the material, geometry and operating arrangement; there is no single threshold for all neodymium magnets. Overheating can permanently weaken a magnet.

Dust is flammable

Drilling and cutting of neodymium magnets poses a fire hazard. Neodymium dust reacts violently with oxygen and is hard to extinguish.

Security! Details about risks in the article: Magnet Safety Guide.