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MW 45x30 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010073

GTIN/EAN: 5906301810728

Load capacity 69.46 kg / 681.39 N Magnetic Induction 495.87 mT / 4959 Gs
Diameter Ø
45 mm [±0,1 mm]
Height
30 mm [±0,1 mm]
Weight
357.85 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel
view specifications »

111.22 zł net / pcs

136.80 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 45x30 / N38 - cylindrical magnet

Specification / characteristics - MW 45x30 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010073
GTIN/EAN 5906301810728
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 45 mm [±0,1 mm]
Height 30 mm [±0,1 mm]
Weight 357.85 g
Magnetization Direction ↑ axial
Load capacity ~ ? 69.46 kg / 681.39 N
Magnetic Induction ~ ? 495.87 mT / 4959 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 45x30 / 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

Technical analysis of the assembly - report

Presented information constitute the outcome of a engineering calculation. Values were calculated on models for the class Nd2Fe14B. Operational conditions might slightly differ. Please consider these data as a reference point during assembly planning.

Table 1: Static force (pull vs distance) - interaction chart
MW 45x30 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 4958 Gs
495.8 mT
 69.46 kg / 153.13 LBS
69460.0 g / 681.4 N
 critical level
1 mm 4742 Gs
474.2 mT
 63.55 kg / 140.11 LBS
63553.9 g / 623.5 N
 critical level
2 mm 4523 Gs
452.3 mT
 57.81 kg / 127.44 LBS
57805.8 g / 567.1 N
 critical level
3 mm 4303 Gs
430.3 mT
 52.33 kg / 115.36 LBS
52327.7 g / 513.3 N
 critical level
5 mm 3870 Gs
387.0 mT
 42.33 kg / 93.32 LBS
42329.9 g / 415.3 N
 critical level
10 mm 2886 Gs
288.6 mT
 23.53 kg / 51.88 LBS
23531.8 g / 230.8 N
 critical level
15 mm 2106 Gs
210.6 mT
 12.54 kg / 27.64 LBS
12537.0 g / 123.0 N
 critical level
20 mm 1535 Gs
153.5 mT
 6.66 kg / 14.68 LBS
6657.1 g / 65.3 N
 warning
30 mm 845 Gs
84.5 mT
 2.02 kg / 4.45 LBS
2018.9 g / 19.8 N
 warning
50 mm 315 Gs
31.5 mT
 0.28 kg / 0.62 LBS
279.5 g / 2.7 N
 safe
Pulling power decreases sharply with every subsequent millimeter of distance. Remember that every additional insulation layer (e.g., dirt, varnish, veneer) noticeably diminishes the holding power. Magnets work most effectively in perfect adhesion; air break weakens the force. Notice how rapidly the load capacity plummet, when the magnet does not touch flatly to the steel surface. When designing the assembly, eliminate unnecessary gaps.

Table 2: Vertical hold (wall)
MW 45x30 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 13.89 kg / 30.63 LBS
13892.0 g / 136.3 N
1 mm Stal (~0.2) 12.71 kg / 28.02 LBS
12710.0 g / 124.7 N
2 mm Stal (~0.2) 11.56 kg / 25.49 LBS
11562.0 g / 113.4 N
3 mm Stal (~0.2) 10.47 kg / 23.07 LBS
10466.0 g / 102.7 N
5 mm Stal (~0.2) 8.47 kg / 18.66 LBS
8466.0 g / 83.1 N
10 mm Stal (~0.2) 4.71 kg / 10.37 LBS
4706.0 g / 46.2 N
15 mm Stal (~0.2) 2.51 kg / 5.53 LBS
2508.0 g / 24.6 N
20 mm Stal (~0.2) 1.33 kg / 2.94 LBS
1332.0 g / 13.1 N
30 mm Stal (~0.2) 0.40 kg / 0.89 LBS
404.0 g / 4.0 N
50 mm Stal (~0.2) 0.06 kg / 0.12 LBS
56.0 g / 0.5 N
The table below indicates the approximate force required to initiate the slippage of the magnet down against a upright steel wall (assuming standard friction coefficient). This value is a function of the gap size between the magnet and the surface.

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 45x30 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
20.84 kg / 45.94 LBS
20838.0 g / 204.4 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
13.89 kg / 30.63 LBS
13892.0 g / 136.3 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
6.95 kg / 15.31 LBS
6946.0 g / 68.1 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
34.73 kg / 76.57 LBS
34730.0 g / 340.7 N
When placing a magnet on a upright wall (e.g., a board), it will maintain just about 1/5 of its maximum pull force. Gravitational force and a low friction coefficient influence the fact that holders move down faster than they pop off the substrate. Designing a hanger? Consider that the sliding force is much weaker than the perpendicular breakaway force. On a painted metal, the element will slide down under a noticeably lighter weight. Application of an anti-slip coating can drastically improve the result.

Table 4: Material efficiency (substrate influence) - power losses
MW 45x30 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
3%
 2.32 kg / 5.10 LBS
2315.3 g / 22.7 N
1 mm
8%
 5.79 kg / 12.76 LBS
5788.3 g / 56.8 N
2 mm
17%
 11.58 kg / 25.52 LBS
11576.7 g / 113.6 N
3 mm
25%
 17.37 kg / 38.28 LBS
17365.0 g / 170.4 N
5 mm
42%
 28.94 kg / 63.81 LBS
28941.7 g / 283.9 N
10 mm
83%
 57.88 kg / 127.61 LBS
57883.3 g / 567.8 N
11 mm
92%
 63.67 kg / 140.37 LBS
63671.7 g / 624.6 N
12 mm
100%
 69.46 kg / 153.13 LBS
69460.0 g / 681.4 N
A thin metal plate is not enough to absorb the entire magnetic field, which squanders power of the magnet. If you attach a powerful product to a too thin substrate, the field will penetrate right through and the attraction force will be weaker. To squeeze the maximum of this magnet's power, you require a sufficiently solid backing of steel. The material oversaturation means that on delicate walls (e.g., appliance housings), the magnet holds weaker. We advise picking the steel dimension from these parameters.

Table 5: Working in heat (material behavior) - thermal limit
MW 45x30 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 69.46 kg / 153.13 LBS
69460.0 g / 681.4 N
 OK
40 °C -2.2% 67.93 kg / 149.76 LBS
67931.9 g / 666.4 N
 OK
60 °C -4.4% 66.40 kg / 146.40 LBS
66403.8 g / 651.4 N
 OK
80 °C -6.6% 64.88 kg / 143.03 LBS
64875.6 g / 636.4 N
100 °C -28.8% 49.46 kg / 109.03 LBS
49455.5 g / 485.2 N
Classic neodymiums change their properties strength past the thermal threshold. Avoid high temperatures – heat can permanently damage this magnet. With increasing heat, the neodymium's capacity temporarily lowers. Do not use this magnet near heat sources exceeding its operating temperature limit. Too high temperature will cause permanent loss of magnetism.
*Technical advisory: Heat tolerance depends not only on the material grade, and the Permeance Coefficient Pc. Low-profile magnets (low Pc) risk losing magnetic properties sooner than taller cylinders. Red status in the table points to permanent field degradation for this particular item.

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MW 45x30 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 241.01 kg / 531.33 LBS
5 803 Gs
36.15 kg / 79.70 LBS
36151 g / 354.6 N
 N/A
1 mm 230.79 kg / 508.80 LBS
9 703 Gs
34.62 kg / 76.32 LBS
34618 g / 339.6 N
 207.71 kg / 457.92 LBS
~0 Gs
2 mm 220.52 kg / 486.16 LBS
9 485 Gs
33.08 kg / 72.92 LBS
33078 g / 324.5 N
 198.47 kg / 437.54 LBS
~0 Gs
3 mm 210.44 kg / 463.94 LBS
9 265 Gs
31.57 kg / 69.59 LBS
31566 g / 309.7 N
 189.39 kg / 417.54 LBS
~0 Gs
5 mm 190.94 kg / 420.95 LBS
8 826 Gs
28.64 kg / 63.14 LBS
28641 g / 281.0 N
 171.85 kg / 378.86 LBS
~0 Gs
10 mm 146.87 kg / 323.80 LBS
7 741 Gs
22.03 kg / 48.57 LBS
22031 g / 216.1 N
 132.19 kg / 291.42 LBS
~0 Gs
20 mm 81.65 kg / 180.01 LBS
5 771 Gs
12.25 kg / 27.00 LBS
12247 g / 120.1 N
 73.48 kg / 162.01 LBS
~0 Gs
50 mm 12.52 kg / 27.60 LBS
2 260 Gs
1.88 kg / 4.14 LBS
1878 g / 18.4 N
 11.27 kg / 24.84 LBS
~0 Gs
60 mm 7.01 kg / 15.44 LBS
1 690 Gs
1.05 kg / 2.32 LBS
1051 g / 10.3 N
 6.30 kg / 13.90 LBS
~0 Gs
70 mm 4.06 kg / 8.95 LBS
1 287 Gs
0.61 kg / 1.34 LBS
609 g / 6.0 N
 3.66 kg / 8.06 LBS
~0 Gs
80 mm 2.44 kg / 5.38 LBS
998 Gs
0.37 kg / 0.81 LBS
366 g / 3.6 N
 2.20 kg / 4.84 LBS
~0 Gs
90 mm 1.51 kg / 3.34 LBS
786 Gs
0.23 kg / 0.50 LBS
227 g / 2.2 N
 1.36 kg / 3.01 LBS
~0 Gs
100 mm 0.97 kg / 2.14 LBS
629 Gs
0.15 kg / 0.32 LBS
145 g / 1.4 N
 0.87 kg / 1.92 LBS
~0 Gs
Two strong neodymiums attract each other from a much further distance than a neodymium and metal setup. The connection of two magnets generates a stronger field and a wider radius of performance. Want to build a powerful holder? Apply two magnets instead of a neodymium and a steel. Remember that when bringing together two magnets, the pinch force is massive. The repulsion force is slightly lower than the attraction, but still significant.
*The magnetic induction between like poles drops to ~0 Gs at the geometric center of the gap (due to field cancellation).
* Figures demonstrate friction force of dual identical neodymium magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Protective zones (electronics) - precautionary measures
MW 45x30 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 25.5 cm
Hearing aid 10 Gs (1.0 mT) 20.0 cm
Mechanical watch 20 Gs (2.0 mT) 15.5 cm
Mobile device 40 Gs (4.0 mT) 12.0 cm
Car key 50 Gs (5.0 mT) 11.0 cm
Payment card 400 Gs (40.0 mT) 4.5 cm
HDD hard drive 600 Gs (60.0 mT) 4.0 cm
Powerful magnet radiation poses a real danger to IT equipment and medical implants. These magnets generate a flux that prevents correct functioning of sensitive medical devices. Notice: the invisible magnetic field acts through matter and housings. Exceptional care must be taken by people with cochlear implants and insulin pumps. Influence will be felt by: automatic timepieces, car keys, speakers, and screens. Avoid contact with magnetic cards, HDD media, or precise measuring instruments.

Table 8: Impact energy (cracking risk) - collision effects
MW 45x30 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 17.63 km/h
(4.90 m/s)
 4.29 J
30 mm 20.82 km/h
(5.78 m/s)
 5.98 J
50 mm 21.10 km/h
(5.86 m/s)
 6.15 J
100 mm 21.17 km/h
(5.88 m/s)
 6.18 J
NdFeB products are delicate – a strong collision with metal causes immediate chipping. Control the attraction moment – a neodymium left loose speeds with massive force. Kinetic force can cause material chips or injury to skin. Hold the magnet firmly during bringing near metal so it doesn't hit with great force against the steel surface. A contact at a velocity of dozens of km/h almost guarantees destruction of the magnet. Wear eye protection when handling with powerful specimens.

Table 9: Coating parameters (durability)
MW 45x30 / 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 45x30 / N38

Parameter Value SI Unit / Description
Magnetic Flux 79 446 Mx 794.5 µWb
Pc Coefficient 0.71 High (Stable)
Total magnetic flux passing through the pole surface. Essential parameter for generator designers and motors. The Pc coefficient determines the working geometry.

Table 11: Underwater work (magnet fishing)
MW 45x30 / N38

Environment Effective steel pull Effect
Air (land) 69.46 kg Standard
Water (riverbed) 79.53 kg
(+10.07 kg buoyancy gain)
+14.5%
Rust risk: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.
Contrary to myths, water does not block the magnetic field. Buoyancy helps in lifting finds.

1. Wall mount (shear)

*Note: On a vertical wall, the magnet holds merely ~20% of its nominal pull.

2. Plate thickness effect

*Thin steel (e.g. 0.5mm PC case) drastically limits 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) = 0.71

The chart above illustrates the magnetic characteristics of the material within the second quadrant of the hysteresis loop. The solid red line represents the demagnetization curve (material potential), while the dashed blue line is the load line based on the magnet's geometry. The Pc (Permeance Coefficient), also known as the load line slope, is a dimensionless value that describes the relationship between the magnet's shape and its magnetic stability. The intersection of these two lines (the black dot) is the operating point — it determines the actual magnetic flux density generated by the magnet in this specific configuration. A higher Pc value means the magnet is more 'slender' (tall relative to its area), resulting in a higher operating point and better resistance to irreversible demagnetization caused by external fields or temperature. A value of 0.42 is relatively low (typical for flat magnets), meaning the operating point is closer to the 'knee' of the curve — caution is advised when operating at temperatures near the maximum limit to avoid strength loss.

Engineering data and GPSR

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: 010073-2026
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The offered product is an extremely powerful rod magnet, composed of durable NdFeB material, which, at dimensions of Ø45x30 mm, guarantees maximum efficiency. This specific item features high dimensional repeatability and professional build quality, making it a perfect solution for professional engineers and designers. As a magnetic rod with significant force (approx. 69.46 kg), this product is in stock from our warehouse in Poland, ensuring quick order fulfillment. Furthermore, 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 perfect for building generators, advanced sensors, and efficient magnetic separators, where field concentration on a small surface counts. Thanks to the high power of 681.39 N with a weight of only 357.85 g, this cylindrical magnet is indispensable in electronics and wherever low weight is crucial.
Since our magnets have a tolerance of ±0.1mm, the best method is to glue them into holes with a slightly larger diameter (e.g., 45.1 mm) using two-component epoxy glues. To ensure long-term durability in automation, anaerobic resins are used, which are safe for nickel and fill the gap, guaranteeing high repeatability 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 even stronger magnets in the same volume (Ø45x30), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our warehouse.
The presented product is a neodymium magnet with precisely defined parameters: diameter 45 mm and height 30 mm. The key parameter here is the holding force amounting to approximately 69.46 kg (force ~681.39 N), which, with such defined dimensions, proves the high grade of the NdFeB material. The product has a [NiCuNi] coating, which protects the surface against oxidation, giving it an aesthetic, silvery shine.
This cylinder is magnetized axially (along the height of 30 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 through the diameter if your project requires it.

Pros as well as cons of Nd2Fe14B magnets.

Strengths

In addition to their long-term stability, neodymium magnets provide the following advantages:
  • Their magnetic field is maintained, and after approximately ten years it drops only by ~1% (according to research),
  • They are noted for resistance to demagnetization induced by external field influence,
  • By covering with a shiny layer of nickel, the element has an aesthetic look,
  • The surface of neodymium magnets generates a concentrated magnetic field – this is one of their assets,
  • Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
  • Due to the potential of precise forming and customization to individualized projects, magnetic components can be modeled in a broad palette of shapes and sizes, which expands the range of possible applications,
  • Significant place in modern technologies – they are utilized in computer drives, electromotive mechanisms, diagnostic systems, as well as other advanced devices.
  • Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Weaknesses

Cons of neodymium magnets: tips and applications.
  • To avoid cracks upon strong impacts, we suggest using special steel housings. Such a solution secures the magnet and simultaneously increases its durability.
  • Neodymium magnets lose power when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of strength (a factor is the shape and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely resistant to heat
  • When exposed to humidity, magnets usually rust. To use them in conditions outside, it is recommended to use protective magnets, such as those in rubber or plastics, which secure oxidation as well as corrosion.
  • We recommend cover - magnetic mount, due to difficulties in realizing nuts inside the magnet and complicated forms.
  • Health risk resulting from small fragments of magnets can be dangerous, when accidentally swallowed, which is particularly important in the aspect of protecting the youngest. Additionally, tiny parts of these magnets are able to complicate diagnosis medical in case of swallowing.
  • High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which increases costs of application in large quantities

Lifting parameters

Maximum lifting force for a neodymium magnet – what affects it?

The lifting capacity listed is a theoretical maximum value conducted under specific, ideal conditions:
  • on a plate made of structural steel, optimally conducting the magnetic field
  • with a thickness no less than 10 mm
  • with a surface perfectly flat
  • without the slightest insulating layer between the magnet and steel
  • during pulling in a direction perpendicular to the mounting surface
  • in temp. approx. 20°C

Determinants of practical lifting force of a magnet

It is worth knowing that the magnet holding will differ depending on the following factors, in order of importance:
  • Distance (betwixt the magnet and the metal), as even a very small distance (e.g. 0.5 mm) leads to a reduction in lifting capacity by up to 50% (this also applies to paint, corrosion or debris).
  • Loading method – declared lifting capacity refers to pulling vertically. When attempting to slide, the magnet exhibits significantly lower power (typically approx. 20-30% of maximum force).
  • Base massiveness – insufficiently thick sheet does not accept the full field, causing part of the flux to be wasted into the air.
  • Metal type – different alloys reacts the same. High carbon content worsen the interaction with the magnet.
  • Surface condition – ground elements ensure maximum contact, which improves field saturation. Uneven metal reduce efficiency.
  • Temperature influence – high temperature reduces pulling force. Too high temperature can permanently demagnetize the magnet.

Lifting capacity was assessed with the use of a polished steel plate of suitable thickness (min. 20 mm), under perpendicular detachment force, whereas under shearing force the lifting capacity is smaller. Moreover, even a small distance between the magnet and the plate reduces the holding force.

Safe handling of NdFeB magnets
Impact on smartphones

Remember: rare earth magnets produce a field that interferes with precision electronics. Keep a safe distance from your mobile, device, and GPS.

Crushing risk

Large magnets can crush fingers in a fraction of a second. Do not put your hand betwixt two strong magnets.

Dust is flammable

Fire hazard: Neodymium dust is explosive. Avoid machining magnets in home conditions as this may cause fire.

Keep away from children

These products are not suitable for play. Swallowing several magnets may result in them connecting inside the digestive tract, which constitutes a severe health hazard and necessitates immediate surgery.

Power loss in heat

Standard neodymium magnets (N-type) lose power when the temperature surpasses 80°C. This process is irreversible.

Magnets are brittle

NdFeB magnets are sintered ceramics, which means they are very brittle. Collision of two magnets will cause them breaking into shards.

Handling rules

Handle magnets with awareness. Their huge power can surprise even professionals. Be vigilant and do not underestimate their power.

Safe distance

Avoid bringing magnets near a wallet, laptop, or TV. The magnetic field can permanently damage these devices and erase data from cards.

Medical interference

Warning for patients: Strong magnetic fields affect medical devices. Keep minimum 30 cm distance or request help to handle the magnets.

Avoid contact if allergic

Warning for allergy sufferers: The nickel-copper-nickel coating consists of nickel. If redness appears, cease handling magnets and wear gloves.

Caution! More info about risks in the article: Safety of working with magnets.