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MW 20x2.5 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010042

GTIN/EAN: 5906301810414

5.00
Load capacity 2.41 kg / 23.63 N Magnetic Induction 150.34 mT / 1503 Gs
Diameter Ø
20 mm [±0,1 mm]
Height
2.5 mm [±0,1 mm]
Weight
5.89 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel
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2.45 zł net / 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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Product card - MW 20x2.5 / N38 - cylindrical magnet

Specification / characteristics - MW 20x2.5 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010042
GTIN/EAN 5906301810414
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 20 mm [±0,1 mm]
Height 2.5 mm [±0,1 mm]
Weight 5.89 g
Magnetization Direction ↑ axial
Load capacity ~ ? 2.41 kg / 23.63 N
Magnetic Induction ~ ? 150.34 mT / 1503 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 20x2.5 / 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 simulation of the magnet - report

These values are the outcome of a engineering analysis. Values were calculated on algorithms for the material Nd2Fe14B. Operational conditions might slightly differ. Please consider these calculations as a supplementary guide during assembly planning.

Table 1: Static force (force vs distance) - characteristics
MW 20x2.5 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 1503 Gs
150.3 mT
 2.41 kg / 5.31 LBS
2410.0 g / 23.6 N
 strong
1 mm 1431 Gs
143.1 mT
 2.18 kg / 4.82 LBS
2184.9 g / 21.4 N
 strong
2 mm 1328 Gs
132.8 mT
 1.88 kg / 4.15 LBS
1882.0 g / 18.5 N
 safe
3 mm 1206 Gs
120.6 mT
 1.55 kg / 3.42 LBS
1552.2 g / 15.2 N
 safe
5 mm 947 Gs
94.7 mT
 0.96 kg / 2.11 LBS
957.1 g / 9.4 N
 safe
10 mm 457 Gs
45.7 mT
 0.22 kg / 0.49 LBS
223.1 g / 2.2 N
 safe
15 mm 224 Gs
22.4 mT
 0.05 kg / 0.12 LBS
53.7 g / 0.5 N
 safe
20 mm 120 Gs
12.0 mT
 0.02 kg / 0.03 LBS
15.4 g / 0.2 N
 safe
30 mm 44 Gs
4.4 mT
 0.00 kg / 0.00 LBS
2.1 g / 0.0 N
 safe
50 mm 11 Gs
1.1 mT
 0.00 kg / 0.00 LBS
0.1 g / 0.0 N
 safe
Grip strength weakens drastically per each millimeter of distance. Remember that every additional insulation layer (e.g., contamination, varnish, dust) significantly weakens the grip. Magnetic products hold strongest at the point of direct contact; distance kills the force. Notice how rapidly the pull force drop, when the magnet does not touch flatly to the metal substrate. When designing the assembly, avoid additional spacers.

Table 2: Vertical load (wall)
MW 20x2.5 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.48 kg / 1.06 LBS
482.0 g / 4.7 N
1 mm Stal (~0.2) 0.44 kg / 0.96 LBS
436.0 g / 4.3 N
2 mm Stal (~0.2) 0.38 kg / 0.83 LBS
376.0 g / 3.7 N
3 mm Stal (~0.2) 0.31 kg / 0.68 LBS
310.0 g / 3.0 N
5 mm Stal (~0.2) 0.19 kg / 0.42 LBS
192.0 g / 1.9 N
10 mm Stal (~0.2) 0.04 kg / 0.10 LBS
44.0 g / 0.4 N
15 mm Stal (~0.2) 0.01 kg / 0.02 LBS
10.0 g / 0.1 N
20 mm Stal (~0.2) 0.00 kg / 0.01 LBS
4.0 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
This section calculates the approximate shear load required to start the shifting of the magnet down on a vertical metal surface (considering typical friction). The holding force is relative to the distance between the magnet and the surface.

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MW 20x2.5 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.72 kg / 1.59 LBS
723.0 g / 7.1 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.48 kg / 1.06 LBS
482.0 g / 4.7 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.24 kg / 0.53 LBS
241.0 g / 2.4 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
1.21 kg / 2.66 LBS
1205.0 g / 11.8 N
When mounting a holder on a vertical wall (e.g., a fridge), it you can count on only about 20%-30% of its maximum pull force. Gravitational force and a weak degree of grip influence the fact that magnets move down faster than they detach. Designing a vertical fastening? Remember that the sliding force is much weaker than the maximum static pull force. On a smooth steel, the element will slide down under a much lighter load. Using a rubber pad can significantly increase the grip.

Table 4: Steel thickness (substrate influence) - power losses
MW 20x2.5 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.24 kg / 0.53 LBS
241.0 g / 2.4 N
1 mm
25%
 0.60 kg / 1.33 LBS
602.5 g / 5.9 N
2 mm
50%
 1.21 kg / 2.66 LBS
1205.0 g / 11.8 N
3 mm
75%
 1.81 kg / 3.98 LBS
1807.5 g / 17.7 N
5 mm
100%
 2.41 kg / 5.31 LBS
2410.0 g / 23.6 N
10 mm
100%
 2.41 kg / 5.31 LBS
2410.0 g / 23.6 N
11 mm
100%
 2.41 kg / 5.31 LBS
2410.0 g / 23.6 N
12 mm
100%
 2.41 kg / 5.31 LBS
2410.0 g / 23.6 N
A too thin steel is incapable of conduct the full magnetic flux, which wastes potential of the holder. If you attach a powerful product to a weak sheet, the field will pass right through and the attraction force will be weaker. To utilize full efficiency of this magnet's potential, you require a sufficiently solid element of steel. The material oversaturation causes that on delicate walls (e.g., car bodies), the product works worse. We advise picking the steel cross-section according to the table below.

Table 5: Working in heat (stability) - power drop
MW 20x2.5 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 2.41 kg / 5.31 LBS
2410.0 g / 23.6 N
 OK
40 °C -2.2% 2.36 kg / 5.20 LBS
2357.0 g / 23.1 N
 OK
60 °C -4.4% 2.30 kg / 5.08 LBS
2304.0 g / 22.6 N
80 °C -6.6% 2.25 kg / 4.96 LBS
2250.9 g / 22.1 N
100 °C -28.8% 1.72 kg / 3.78 LBS
1715.9 g / 16.8 N
Standard neodymium magnets lose power past the thermal threshold. Avoid high temperatures – heat can permanently destroy this magnet. With every degree above norm, the magnet's capacity momentarily drops. Refrain from using this magnet close to ovens higher than its working range. Ignoring the limit will cause destruction of magnetic properties.
*Technical advisory: Heat tolerance is determined by both grade, but also on the magnet's shape. Thin magnets (low Pc) risk losing magnetic properties under lower heat stress compared to rod magnets. Red status in the table indicates a risk of irreversible loss for this particular item.

Table 6: Magnet-Magnet interaction (attraction) - field range
MW 20x2.5 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Strength (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 4.38 kg / 9.65 LBS
2 771 Gs
0.66 kg / 1.45 LBS
656 g / 6.4 N
 N/A
1 mm 4.20 kg / 9.25 LBS
2 944 Gs
0.63 kg / 1.39 LBS
629 g / 6.2 N
 3.78 kg / 8.33 LBS
~0 Gs
2 mm 3.97 kg / 8.75 LBS
2 862 Gs
0.60 kg / 1.31 LBS
595 g / 5.8 N
 3.57 kg / 7.87 LBS
~0 Gs
3 mm 3.70 kg / 8.17 LBS
2 766 Gs
0.56 kg / 1.22 LBS
556 g / 5.5 N
 3.33 kg / 7.35 LBS
~0 Gs
5 mm 3.12 kg / 6.88 LBS
2 538 Gs
0.47 kg / 1.03 LBS
468 g / 4.6 N
 2.81 kg / 6.19 LBS
~0 Gs
10 mm 1.74 kg / 3.83 LBS
1 895 Gs
0.26 kg / 0.57 LBS
261 g / 2.6 N
 1.56 kg / 3.45 LBS
~0 Gs
20 mm 0.41 kg / 0.89 LBS
915 Gs
0.06 kg / 0.13 LBS
61 g / 0.6 N
 0.36 kg / 0.80 LBS
~0 Gs
50 mm 0.01 kg / 0.02 LBS
140 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 / 0.01 LBS
88 Gs
0.00 kg / 0.00 LBS
1 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
70 mm 0.00 kg / 0.00 LBS
58 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
41 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
29 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
22 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
Two magnets attract each other from a much further distance than a magnet and sheet combination. Such a system of magnet-to-magnet generates a stronger field and a larger range of operation. Planning to create a strong closure? Apply two magnets instead of one magnet and a striker plate. Remember that when connecting a pair of magnets, the collision energy is extreme. The repulsion force is slightly lower than the attraction, but still significant.
*Field value for N-N configuration drops to ~0 Gs at the midpoint between the magnets (caused by magnetic field nullification).
Note: Results apply to shear force of two matching neodymium magnets (friction ~0.15 for Ni-Ni coating).

Table 7: Protective zones (implants) - warnings
MW 20x2.5 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 7.0 cm
Hearing aid 10 Gs (1.0 mT) 5.5 cm
Timepiece 20 Gs (2.0 mT) 4.5 cm
Mobile device 40 Gs (4.0 mT) 3.5 cm
Remote 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
A strong magnetic field poses a real danger to electronic devices as well as pacemakers. These magnets generate a field that prevents correct functioning of sensitive medical devices. Notice: the invisible magnetic field acts through matter and plastic. Increased vigilance must be exercised by people with cochlear implants and insulin pumps. The risk also applies to: automatic timepieces, car keys, speakers, and screens. Avoid contact with magnetic cards, hard drives, or precise measuring instruments.

Table 8: Impact energy (kinetic energy) - warning
MW 20x2.5 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 21.89 km/h
(6.08 m/s)
 0.11 J
30 mm 22.67 km/h
(6.30 m/s)
 0.12 J
50 mm 22.68 km/h
(6.30 m/s)
 0.12 J
100 mm 22.68 km/h
(6.30 m/s)
 0.12 J
Magnetic elements are prone to chipping – a collision with steel can result in shattering. Control the attraction moment – a magnet released freely becomes dangerous. Impact energy can destroy the magnet or dangerous crushing to fingers. Always hold the magnet during mounting so it doesn't hit violently against the metal. A collision at high speed ends with a crack of the magnet. Wear eye protection when handling with large magnets.

Table 9: Surface protection spec
MW 20x2.5 / 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. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Electrical data (Flux)
MW 20x2.5 / N38

Parameter Value SI Unit / Description
Magnetic Flux 5 996 Mx 60.0 µWb
Pc Coefficient 0.19 Low (Flat)
Total magnetic flux passing through the magnet pole. Essential parameter for generator designers and motors. Pc value defines the working geometry.

Table 11: Submerged application
MW 20x2.5 / N38

Environment Effective steel pull Effect
Air (land) 2.41 kg Standard
Water (riverbed) 2.76 kg
(+0.35 kg buoyancy gain)
+14.5%
Rust risk: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!
Contrary to myths, water does not block the magnetic field. However, remember the water resistance when pulling the rope quickly.

1. Vertical hold

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

2. Efficiency vs thickness

*Thin metal sheet (e.g. computer case) significantly limits the holding force.

3. Power loss vs temp

*For N38 material, the critical limit is 80°C.

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.19

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.

Technical specification and ecology

Material specification

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: 010042-2026
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This product is an extremely powerful rod magnet, composed of durable NdFeB material, which, at dimensions of Ø20x2.5 mm, guarantees the highest energy density. The MW 20x2.5 / N38 component is characterized by a tolerance of ±0.1mm and professional build quality, making it an ideal solution for the most demanding engineers and designers. As a cylindrical magnet with impressive force (approx. 2.41 kg), this product is available off-the-shelf from our European logistics center, ensuring rapid order fulfillment. Moreover, its triple-layer Ni-Cu-Ni coating secures it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.
It finds application in DIY projects, advanced robotics, and broadly understood industry, serving as a positioning or actuating element. Thanks to the high power of 23.63 N with a weight of only 5.89 g, this rod is indispensable in electronics 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 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 high repeatability of the connection.
Magnets N38 are strong enough for the majority of applications in automation and machine building, where excessive miniaturization with maximum force is not required. If you need the strongest magnets in the same volume (Ø20x2.5), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our warehouse.
This model is characterized by dimensions Ø20x2.5 mm, which, at a weight of 5.89 g, makes it an element with impressive magnetic energy density. The value of 23.63 N means that the magnet is capable of holding a weight many times exceeding its own mass of 5.89 g. The product has a [NiCuNi] coating, which secures it against oxidation, giving it an aesthetic, silvery shine.
This cylinder is magnetized axially (along the height of 2.5 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.

Advantages as well as disadvantages of Nd2Fe14B magnets.

Benefits

In addition to their long-term stability, neodymium magnets provide the following advantages:
  • They do not lose strength, even over around ten years – the drop in strength is only ~1% (theoretically),
  • They maintain their magnetic properties even under close interference source,
  • By covering with a smooth layer of gold, the element has an nice look,
  • They show high magnetic induction at the operating surface, which improves attraction properties,
  • Due to their durability and thermal resistance, neodymium magnets can operate (depending on the form) even at high temperatures reaching 230°C or more...
  • Possibility of detailed shaping and modifying to defined needs,
  • Wide application in high-tech industry – they are used in magnetic memories, electromotive mechanisms, diagnostic systems, as well as complex engineering applications.
  • Thanks to concentrated force, small magnets offer high operating force, in miniature format,

Cons

Disadvantages of neodymium magnets:
  • Susceptibility to cracking is one of their disadvantages. Upon strong impact they can fracture. We recommend keeping them in a special holder, which not only secures them against impacts but also raises their durability
  • We warn that neodymium magnets can reduce their strength at high temperatures. To prevent this, we recommend our specialized [AH] magnets, which work effectively even at 230°C.
  • Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material stable to moisture, when using outdoors
  • Limited possibility of producing threads in the magnet and complex shapes - preferred is casing - magnet mounting.
  • Potential hazard related to microscopic parts of magnets pose a threat, in case of ingestion, which gains importance in the aspect of protecting the youngest. Furthermore, small elements of these devices can be problematic in diagnostics medical when they are in the body.
  • Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Pull force analysis

Breakaway strength of the magnet in ideal conditions – what affects it?

The declared magnet strength represents the peak performance, obtained under laboratory conditions, specifically:
  • on a base made of mild steel, perfectly concentrating the magnetic field
  • with a cross-section of at least 10 mm
  • with an polished contact surface
  • under conditions of ideal adhesion (metal-to-metal)
  • under perpendicular force direction (90-degree angle)
  • at standard ambient temperature

Practical lifting capacity: influencing factors

Please note that the working load may be lower influenced by the following factors, in order of importance:
  • Gap between magnet and steel – every millimeter of distance (caused e.g. by veneer or dirt) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
  • Pull-off angle – remember that the magnet holds strongest perpendicularly. Under shear forces, the holding force drops drastically, often to levels of 20-30% of the nominal value.
  • Wall thickness – the thinner the sheet, the weaker the hold. Magnetic flux penetrates through instead of generating force.
  • Steel type – low-carbon steel attracts best. Alloy steels lower magnetic properties and holding force.
  • Surface finish – full contact is obtained only on polished steel. Rough texture create air cushions, reducing force.
  • Thermal factor – high temperature weakens magnetic field. Too high temperature can permanently damage the magnet.

Lifting capacity was assessed by applying a smooth steel plate of optimal thickness (min. 20 mm), under vertically applied force, in contrast under parallel forces the holding force is lower. Moreover, even a small distance between the magnet’s surface and the plate lowers the lifting capacity.

Warnings
Adults only

These products are not intended for children. Accidental ingestion of a few magnets may result in them pinching intestinal walls, which poses a severe health hazard and requires immediate surgery.

Allergy Warning

Nickel alert: The nickel-copper-nickel coating contains nickel. If redness occurs, immediately stop working with magnets and use protective gear.

Magnets are brittle

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

Danger to pacemakers

Health Alert: Strong magnets can deactivate pacemakers and defibrillators. Stay away if you have medical devices.

Keep away from computers

Very strong magnetic fields can destroy records on payment cards, hard drives, and other magnetic media. Maintain a gap of at least 10 cm.

Safe operation

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

Precision electronics

Navigation devices and mobile phones are extremely susceptible to magnetism. Close proximity with a powerful NdFeB magnet can decalibrate the internal compass in your phone.

Permanent damage

Avoid heat. NdFeB magnets are sensitive to heat. If you require operation above 80°C, look for HT versions (H, SH, UH).

Hand protection

Mind your fingers. Two large magnets will join immediately with a force of massive weight, destroying everything in their path. Be careful!

Fire risk

Dust created during cutting of magnets is combustible. Avoid drilling into magnets without proper cooling and knowledge.

Warning! Learn more about risks in the article: Magnet Safety Guide.