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MW 5x25 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010086

GTIN/EAN: 5906301810858

5.00
Load capacity 0.45 kg / 4.41 N Magnetic Induction 615.39 mT / 6154 Gs
Diameter Ø
5 mm [±0,1 mm]
Height
25 mm [±0,1 mm]
Weight
3.68 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

view technical data »

1.880 zł net / pcs

2.31 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 5x25 / N38 - cylindrical magnet

Specification / characteristics - MW 5x25 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010086
GTIN/EAN 5906301810858
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 5 mm [±0,1 mm]
Height 25 mm [±0,1 mm]
Weight 3.68 g
Magnetization Direction ↑ axial
Load capacity ~ ? 0.45 kg / 4.41 N
Magnetic Induction ~ ? 615.39 mT / 6154 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 5x25 / 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

Presented values represent the direct effect of a engineering analysis. Results are based on algorithms for the material Nd2Fe14B. Real-world parameters might slightly differ from theoretical values. Please consider these calculations as a reference point when designing systems.

Table 1: Static force (force vs gap) - interaction chart
MW 5x25 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 6144 Gs
614.4 mT
 0.45 kg / 0.99 LBS
450.0 g / 4.4 N
 safe
1 mm 3869 Gs
386.9 mT
 0.18 kg / 0.39 LBS
178.4 g / 1.8 N
 safe
2 mm 2300 Gs
230.0 mT
 0.06 kg / 0.14 LBS
63.1 g / 0.6 N
 safe
3 mm 1412 Gs
141.2 mT
 0.02 kg / 0.05 LBS
23.8 g / 0.2 N
 safe
5 mm 633 Gs
63.3 mT
 0.00 kg / 0.01 LBS
4.8 g / 0.0 N
 safe
10 mm 169 Gs
16.9 mT
 0.00 kg / 0.00 LBS
0.3 g / 0.0 N
 safe
15 mm 72 Gs
7.2 mT
 0.00 kg / 0.00 LBS
0.1 g / 0.0 N
 safe
20 mm 38 Gs
3.8 mT
 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
 safe
30 mm 15 Gs
1.5 mT
 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
 safe
50 mm 4 Gs
0.4 mT
 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
 safe
Grip strength decreases sharply with every subsequent millimeter of distance. Keep in mind that even a very thin break (e.g., contamination, varnish, veneer) strongly weakens the grip. Magnetic products operate optimally at the point of direct contact; gap kills the power. Notice how flashily the pull force drop, when the magnet does not adhere tightly to the metal substrate. When planning the arrangement, avoid unnecessary gaps.

Table 2: Sliding load (wall)
MW 5x25 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.09 kg / 0.20 LBS
90.0 g / 0.9 N
1 mm Stal (~0.2) 0.04 kg / 0.08 LBS
36.0 g / 0.4 N
2 mm Stal (~0.2) 0.01 kg / 0.03 LBS
12.0 g / 0.1 N
3 mm Stal (~0.2) 0.00 kg / 0.01 LBS
4.0 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 following data presents the estimated holding capacity needed to cause the sliding of the magnet vertically on a vertical metal surface (assuming typical friction). The holding force is relative to the gap size between the magnet and the metal.

Table 3: Vertical assembly (sliding) - vertical pull
MW 5x25 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.14 kg / 0.30 LBS
135.0 g / 1.3 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.09 kg / 0.20 LBS
90.0 g / 0.9 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.05 kg / 0.10 LBS
45.0 g / 0.4 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
0.23 kg / 0.50 LBS
225.0 g / 2.2 N
When placing a holder on a vertical wall (e.g., a fridge), it will only hold only approx. 20%-30% of its maximum pull force. Gravitational force and a weak degree of grip influence the fact that products move down easier than they pull off. Want to create a wall mount? Consider that the sliding force is noticeably lower than the perpendicular breakaway force. On a painted metal, the element will slip down under a significantly smaller cargo. Using a rubber coating can drastically increase the grip.

Table 4: Steel thickness (saturation) - sheet metal selection
MW 5x25 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.05 kg / 0.10 LBS
45.0 g / 0.4 N
1 mm
25%
 0.11 kg / 0.25 LBS
112.5 g / 1.1 N
2 mm
50%
 0.23 kg / 0.50 LBS
225.0 g / 2.2 N
3 mm
75%
 0.34 kg / 0.74 LBS
337.5 g / 3.3 N
5 mm
100%
 0.45 kg / 0.99 LBS
450.0 g / 4.4 N
10 mm
100%
 0.45 kg / 0.99 LBS
450.0 g / 4.4 N
11 mm
100%
 0.45 kg / 0.99 LBS
450.0 g / 4.4 N
12 mm
100%
 0.45 kg / 0.99 LBS
450.0 g / 4.4 N
A thin metal plate is not enough to take in the full magnetic flux, which squanders power of the magnet. Should you attach a powerful product to a too thin substrate, the flux will pass right through and the pull force will drop sharply. To achieve full efficiency of this magnet's potential, you require a sufficiently solid element of steel. The material oversaturation causes that on thin elements (e.g., appliance housings), the product holds weaker. We recommend selecting the steel cross-section based on the following data.

Table 5: Thermal stability (material behavior) - power drop
MW 5x25 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 0.45 kg / 0.99 LBS
450.0 g / 4.4 N
 OK
40 °C -2.2% 0.44 kg / 0.97 LBS
440.1 g / 4.3 N
 OK
60 °C -4.4% 0.43 kg / 0.95 LBS
430.2 g / 4.2 N
 OK
80 °C -6.6% 0.42 kg / 0.93 LBS
420.3 g / 4.1 N
100 °C -28.8% 0.32 kg / 0.71 LBS
320.4 g / 3.1 N
Ordinary NdFeB products change their properties parameters after exceeding the maximum temperature. Avoid high temperatures – high temperature can permanently destroy this magnet. With every degree above norm, the magnet's capacity momentarily drops. Refrain from using this magnet close to heaters exceeding its safe range. Ignoring the limit will lead to destruction of magnetic properties.
*Engineering note: Temperature resistance is determined by both grade, as well as the dimension ratios. Low-profile magnets (low Pc) risk losing magnetic properties sooner than taller cylinders. Red status in the table signals permanent field degradation for this specific geometry.

Table 6: Two magnets (attraction) - field collision
MW 5x25 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Lateral Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 4.57 kg / 10.08 LBS
6 167 Gs
0.69 kg / 1.51 LBS
686 g / 6.7 N
 N/A
1 mm 2.97 kg / 6.55 LBS
9 909 Gs
0.45 kg / 0.98 LBS
446 g / 4.4 N
 2.67 kg / 5.90 LBS
~0 Gs
2 mm 1.81 kg / 3.99 LBS
7 738 Gs
0.27 kg / 0.60 LBS
272 g / 2.7 N
 1.63 kg / 3.60 LBS
~0 Gs
3 mm 1.08 kg / 2.37 LBS
5 965 Gs
0.16 kg / 0.36 LBS
162 g / 1.6 N
 0.97 kg / 2.14 LBS
~0 Gs
5 mm 0.39 kg / 0.86 LBS
3 581 Gs
0.06 kg / 0.13 LBS
58 g / 0.6 N
 0.35 kg / 0.77 LBS
~0 Gs
10 mm 0.05 kg / 0.11 LBS
1 266 Gs
0.01 kg / 0.02 LBS
7 g / 0.1 N
 0.04 kg / 0.10 LBS
~0 Gs
20 mm 0.00 kg / 0.01 LBS
339 Gs
0.00 kg / 0.00 LBS
1 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
50 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
60 mm 0.00 kg / 0.00 LBS
30 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
21 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
15 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
11 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
9 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
Two strong neodymiums interact from a wider radius than a neodymium and metal combination. The setup of magnet-to-magnet creates a more powerful interaction and a further horizon of action. Planning to create a powerful holder? Utilize two neodymiums instead of one magnet and a steel. Exercise caution that when connecting a pair of magnets, the pinch force is extreme. The repulsion force is slightly lower than the connection force, but still large.
*Flux density between like poles drops to ~0 Gs at the geometric center between the magnets (resulting from vector opposition).
Attention: Figures demonstrate shear force of a pair of identical magnets (friction coefficient ~0.15 for Ni-Ni plating).

Table 7: Protective zones (electronics) - warnings
MW 5x25 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 5.0 cm
Hearing aid 10 Gs (1.0 mT) 4.0 cm
Timepiece 20 Gs (2.0 mT) 3.0 cm
Mobile device 40 Gs (4.0 mT) 2.0 cm
Remote 50 Gs (5.0 mT) 2.0 cm
Payment card 400 Gs (40.0 mT) 1.0 cm
HDD hard drive 600 Gs (60.0 mT) 1.0 cm
Powerful magnet radiation is a real danger to IT equipment and pacemakers. These magnets produce a flux that prevents correct functioning of digital equipment. Remember: the unseen radiation acts through matter and plastic. Increased vigilance must be exercised by people with hearing aids and insulin pumps. Also at risk are: mechanical watches, remotes, speakers, and displays. Avoid contact with magnetic cards, HDD media, or sensitive navigation tools.

Table 8: Dynamics (cracking risk) - collision effects
MW 5x25 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 5.77 km/h
(1.60 m/s)
 0.00 J
30 mm 5.78 km/h
(1.60 m/s)
 0.00 J
50 mm 5.78 km/h
(1.60 m/s)
 0.00 J
100 mm 5.78 km/h
(1.60 m/s)
 0.00 J
Neodymium magnets are prone to chipping – a collision with steel risks their cracking. Pay attention to connection velocity – a magnet released freely speeds with massive force. Impact energy can cause material chips or dangerous crushing to skin. Always hold the magnet during bringing near metal so it doesn't slam with momentum against the steel surface. A collision at high speed means shattering of the magnet. Wear eye protection when playing with large magnets.

Table 9: Corrosion resistance
MW 5x25 / 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 following table defines the conditions under which this product can be safely used. Note the thickness of the protective layer.

Table 10: Electrical data (Pc)
MW 5x25 / N38

Parameter Value SI Unit / Description
Magnetic Flux 1 450 Mx 14.5 µWb
Pc Coefficient 1.55 High (Stable)
Flux value passing through the pole surface. Key data in coil applications and motors. The Pc coefficient defines the magnet's operating point.

Table 11: Hydrostatics and buoyancy
MW 5x25 / N38

Environment Effective steel pull Effect
Air (land) 0.45 kg Standard
Water (riverbed) 0.52 kg
(+0.07 kg buoyancy gain)
+14.5%
Corrosion warning: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!
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. Vertical hold

*Note: On a vertical surface, the magnet holds only approx. 20-30% of its nominal pull.

2. Steel thickness impact

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

3. Thermal stability

*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) = 1.55

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%

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: 010086-2026
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Magnetic Induction

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The presented product is a very strong cylinder magnet, composed of advanced NdFeB material, which, with dimensions of Ø5x25 mm, guarantees optimal power. The MW 5x25 / N38 model boasts a tolerance of ±0.1mm and professional build quality, making it an excellent solution for the most demanding engineers and designers. As a cylindrical magnet with significant force (approx. 0.45 kg), this product is in stock from our European logistics center, ensuring lightning-fast order fulfillment. Moreover, its triple-layer Ni-Cu-Ni coating shields it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.
This model is ideal for building electric motors, advanced Hall effect sensors, and efficient filters, where field concentration on a small surface counts. Thanks to the high power of 4.41 N with a weight of only 3.68 g, this cylindrical magnet is indispensable in miniature devices and wherever every gram matters.
Due to the delicate structure of the ceramic sinter, you must not use force-fitting (so-called press-fit), as this risks immediate cracking of this precision component. To ensure stability in automation, anaerobic resins are used, which do not react with the nickel coating and fill the gap, guaranteeing durability of the connection.
Magnets N38 are suitable for the majority of applications in automation and machine building, where extreme miniaturization with maximum force is not required. If you need the strongest magnets in the same volume (Ø5x25), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our store.
This model is characterized by dimensions Ø5x25 mm, which, at a weight of 3.68 g, makes it an element with high magnetic energy density. The value of 4.41 N means that the magnet is capable of holding a weight many times exceeding its own mass of 3.68 g. The product has a [NiCuNi] coating, which secures it against external factors, giving it an aesthetic, silvery shine.
This cylinder is magnetized axially (along the height of 25 mm), which means that the N and S poles are located on the flat, circular surfaces. Thanks to this, the magnet can be easily glued into a hole and achieve a strong field on the front surface. On request, we can also produce versions magnetized diametrically if your project requires it.

Advantages as well as disadvantages of neodymium magnets.

Advantages

Apart from their superior magnetic energy, neodymium magnets have these key benefits:
  • They have unchanged lifting capacity, and over more than 10 years their performance decreases symbolically – ~1% (in testing),
  • They have excellent resistance to weakening of magnetic properties due to external magnetic sources,
  • Thanks to the shiny finish, the plating of nickel, gold, or silver gives an clean appearance,
  • Magnets possess very high magnetic induction on the outer layer,
  • Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
  • Thanks to the possibility of accurate molding and customization to specialized requirements, NdFeB magnets can be created in a wide range of forms and dimensions, which makes them more universal,
  • Significant place in modern technologies – they are used in data components, electric motors, diagnostic systems, also complex engineering applications.
  • Thanks to concentrated force, small magnets offer high operating force, in miniature format,

Cons

Disadvantages of NdFeB magnets:
  • Susceptibility to cracking is one of their disadvantages. Upon strong impact they can break. We advise keeping them in a steel housing, which not only protects them against impacts but also increases their durability
  • When exposed to high temperature, neodymium magnets experience a drop in force. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
  • Magnets exposed to a humid environment can corrode. Therefore when using outdoors, we suggest using water-impermeable magnets made of rubber, plastic or other material resistant to moisture
  • Due to limitations in creating threads and complex shapes in magnets, we recommend using a housing - magnetic holder.
  • Health risk related to microscopic parts of magnets can be dangerous, in case of ingestion, which becomes key in the context of child safety. Additionally, small components of these magnets can be problematic in diagnostics medical in case of swallowing.
  • Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Pull force analysis

Maximum lifting capacity of the magnet – what affects it?

Information about lifting capacity is the result of a measurement for optimal configuration, including:
  • using a base made of high-permeability steel, serving as a ideal flux conductor
  • possessing a massiveness of minimum 10 mm to ensure full flux closure
  • with an polished touching surface
  • with total lack of distance (without coatings)
  • under perpendicular force direction (90-degree angle)
  • at ambient temperature approx. 20 degrees Celsius

Magnet lifting force in use – key factors

Real force impacted by specific conditions, including (from priority):
  • Gap between magnet and steel – every millimeter of separation (caused e.g. by varnish or dirt) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
  • Direction of force – highest force is reached only during perpendicular pulling. The force required to slide of the magnet along the plate is standardly several times smaller (approx. 1/5 of the lifting capacity).
  • Wall thickness – thin material does not allow full use of the magnet. Magnetic flux passes through the material instead of generating force.
  • Steel type – mild steel attracts best. Alloy admixtures reduce magnetic permeability and holding force.
  • Surface condition – ground elements ensure maximum contact, which increases field saturation. Uneven metal weaken the grip.
  • Temperature – temperature increase results in weakening of induction. Check the thermal limit for a given model.

Lifting capacity was determined using a smooth steel plate of optimal thickness (min. 20 mm), under vertically applied force, whereas under parallel forces the holding force is lower. In addition, even a small distance between the magnet’s surface and the plate reduces the holding force.

Warnings
No play value

Adult use only. Tiny parts pose a choking risk, causing severe trauma. Keep away from children and animals.

Sensitization to coating

A percentage of the population experience a contact allergy to Ni, which is the common plating for neodymium magnets. Extended handling may cause an allergic reaction. We recommend use safety gloves.

Keep away from electronics

Remember: neodymium magnets generate a field that interferes with sensitive sensors. Maintain a separation from your phone, tablet, and GPS.

Caution required

Before use, read the rules. Sudden snapping can destroy the magnet or hurt your hand. Be predictive.

Flammability

Mechanical processing of neodymium magnets carries a risk of fire risk. Neodymium dust oxidizes rapidly with oxygen and is difficult to extinguish.

Protect data

Avoid bringing magnets near a purse, computer, or TV. The magnetism can irreversibly ruin these devices and erase data from cards.

Serious injuries

Large magnets can break fingers instantly. Do not place your hand between two attracting surfaces.

Medical implants

Patients with a ICD should maintain an safe separation from magnets. The magnetic field can stop the functioning of the implant.

Eye protection

NdFeB magnets are ceramic materials, meaning they are prone to chipping. Impact of two magnets leads to them shattering into small pieces.

Power loss in heat

Monitor thermal conditions. Exposing the magnet to high heat will destroy its magnetic structure and pulling force.

Caution! Need more info? Read our article: Are neodymium magnets dangerous?