← previous
next →
Product available Ships today (order by 14:00) CO2 GPSR PPWR REACH

MP 20x5x5 / N38 - ring magnet

ring magnet

Catalog no 030186

GTIN/EAN: 5906301812036

5.00
Load capacity 6.49 kg / 63.68 N Magnetic Induction 277.16 mT / 2772 Gs
Diameter
20 mm [±0,1 mm]
internal diameter Ø
5 mm [±0,1 mm]
Height
5 mm [±0,1 mm]
Weight
11.04 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel
product details »

2.24 zł net / pcs

2.76 zł with VAT (23% VAT) / pcs

price for transport

bulk discounts:

Need more?
Quantity
Net
Gross
price from 1 pcs
2.24 zł
2.76 zł
price from 300 pcs
2.11 zł
2.59 zł
price from 1150 pcs
1.971 zł
2.42 zł

Frequently asked questions

What is the hole in a ring magnet for?
For mounting on a screw or a shaft. The bore may be cylindrical or countersunk for a screw head. The hole removes magnet volume, so a ring holds less than a disc of the same outside diameter.
What is the polarisation?
Axial as standard — poles on the flat faces of the ring. Diametrical polarisation is made to order.
What sizes are available?
Outside diameter from 5 to 62 mm from stock. To order up to 200 mm outside diameter, 180 mm bore and 40 mm height, with a lead time of 25–35 days.

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.

Order by 14:00 and we’ll ship today!

Technical of the product - MP 20x5x5 / N38 - ring magnet

Specification / characteristics - MP 20x5x5 / N38 - ring magnet

properties
properties values
Cat. no. 030186
GTIN/EAN 5906301812036
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 20 mm [±0,1 mm]
internal diameter Ø 5 mm [±0,1 mm]
Height 5 mm [±0,1 mm]
Weight 11.04 g
Magnetization Direction ↑ axial
Load capacity ~ ? 6.49 kg / 63.68 N
Magnetic Induction ~ ? 277.16 mT / 2772 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MP 20x5x5 / N38 - ring 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 assembly - report

Presented data are the result of a physical simulation. Results rely on algorithms for the material Nd2Fe14B. Operational conditions might slightly differ from theoretical values. Treat these calculations as a supplementary guide for designers.

Table 1: Static pull force (force vs gap) - power drop
MP 20x5x5 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 5917 Gs
591.7 mT
 6.49 kg / 14.31 lbs
6490.0 g / 63.7 N
 medium risk
1 mm 5321 Gs
532.1 mT
 5.25 kg / 11.57 lbs
5249.3 g / 51.5 N
 medium risk
2 mm 4736 Gs
473.6 mT
 4.16 kg / 9.17 lbs
4158.8 g / 40.8 N
 medium risk
3 mm 4184 Gs
418.4 mT
 3.25 kg / 7.15 lbs
3245.0 g / 31.8 N
 medium risk
5 mm 3216 Gs
321.6 mT
 1.92 kg / 4.23 lbs
1917.2 g / 18.8 N
 weak grip
10 mm 1650 Gs
165.0 mT
 0.50 kg / 1.11 lbs
504.5 g / 4.9 N
 weak grip
15 mm 907 Gs
90.7 mT
 0.15 kg / 0.34 lbs
152.6 g / 1.5 N
 weak grip
20 mm 544 Gs
54.4 mT
 0.05 kg / 0.12 lbs
54.9 g / 0.5 N
 weak grip
30 mm 240 Gs
24.0 mT
 0.01 kg / 0.02 lbs
10.7 g / 0.1 N
 weak grip
50 mm 75 Gs
7.5 mT
 0.00 kg / 0.00 lbs
1.0 g / 0.0 N
 weak grip
Grip strength drops drastically with every subsequent millimeter of gap. Remember that even a microscopic distance (e.g., dirt, paint, rust) significantly reduces the pull force. Magnets hold most effectively during direct contact; air break nullifies the force. Notice how rapidly the load capacity plummet, when the product does not adhere directly to the steel surface. When designing the mounting, discard redundant distances.

Table 2: Slippage load (vertical surface)
MP 20x5x5 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 1.30 kg / 2.86 lbs
1298.0 g / 12.7 N
1 mm Stal (~0.2) 1.05 kg / 2.31 lbs
1050.0 g / 10.3 N
2 mm Stal (~0.2) 0.83 kg / 1.83 lbs
832.0 g / 8.2 N
3 mm Stal (~0.2) 0.65 kg / 1.43 lbs
650.0 g / 6.4 N
5 mm Stal (~0.2) 0.38 kg / 0.85 lbs
384.0 g / 3.8 N
10 mm Stal (~0.2) 0.10 kg / 0.22 lbs
100.0 g / 1.0 N
15 mm Stal (~0.2) 0.03 kg / 0.07 lbs
30.0 g / 0.3 N
20 mm Stal (~0.2) 0.01 kg / 0.02 lbs
10.0 g / 0.1 N
30 mm Stal (~0.2) 0.00 kg / 0.00 lbs
2.0 g / 0.0 N
50 mm Stal (~0.2) 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
The table below calculates the approximate weight limit needed to cause the sliding of the magnet downwards along a vertical metal surface (assuming typical friction coefficient). The holding force depends on the distance between the magnet and the metal.

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MP 20x5x5 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
1.95 kg / 4.29 lbs
1947.0 g / 19.1 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
1.30 kg / 2.86 lbs
1298.0 g / 12.7 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.65 kg / 1.43 lbs
649.0 g / 6.4 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
3.25 kg / 7.15 lbs
3245.0 g / 31.8 N
When placing a holder on a vertical wall (e.g., a board), it will maintain just approx. 20%-30% of its maximum pull force. Gravitational force as well as a low friction coefficient cause that magnets slide down easier than they pull off. Want to create a vertical fastening? Consider that the shear force is significantly lower than the perpendicular breakaway force. On a smooth steel, the holder will slide down under a much lighter cargo. Utilizing a rubberized coating can drastically improve the result.

Table 4: Steel thickness (substrate influence) - power losses
MP 20x5x5 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.65 kg / 1.43 lbs
649.0 g / 6.4 N
1 mm
25%
 1.62 kg / 3.58 lbs
1622.5 g / 15.9 N
2 mm
50%
 3.25 kg / 7.15 lbs
3245.0 g / 31.8 N
3 mm
75%
 4.87 kg / 10.73 lbs
4867.5 g / 47.8 N
5 mm
100%
 6.49 kg / 14.31 lbs
6490.0 g / 63.7 N
10 mm
100%
 6.49 kg / 14.31 lbs
6490.0 g / 63.7 N
11 mm
100%
 6.49 kg / 14.31 lbs
6490.0 g / 63.7 N
12 mm
100%
 6.49 kg / 14.31 lbs
6490.0 g / 63.7 N
A thin sheet is not enough to absorb the entire magnetic field, which weakens actual performance of the holder. Should you attach a powerful product to a too thin substrate, the field will pass right through and the holding will be smaller. To squeeze 100% of this magnet's power, you need a suitably thick piece of metal. The material oversaturation causes that on thin elements (e.g., appliance housings), the holder shows lower pull force. We suggest choosing the steel dimension based on the following data.

Table 5: Thermal resistance (material behavior) - power drop
MP 20x5x5 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 6.49 kg / 14.31 lbs
6490.0 g / 63.7 N
 OK
40 °C -2.2% 6.35 kg / 13.99 lbs
6347.2 g / 62.3 N
 OK
60 °C -4.4% 6.20 kg / 13.68 lbs
6204.4 g / 60.9 N
 OK
80 °C -6.6% 6.06 kg / 13.36 lbs
6061.7 g / 59.5 N
100 °C -28.8% 4.62 kg / 10.19 lbs
4620.9 g / 45.3 N
Classic neodymiums irreversibly lose parameters past the thermal threshold. Avoid high temperatures – high temperature can irreversibly demagnetize this product. With every degree above norm, the magnet's capacity temporarily decreases. Avoid using this product near heat sources exceeding its operating temperature limit. Ignoring the limit will cause destruction of magnetic properties.
*Technical advisory: Temperature resistance is determined by both grade, and the Permeance Coefficient Pc. Thin magnets (low Pc) risk losing magnetic properties at lower temperatures than taller cylinders. The danger warning in the table indicates permanent field degradation for this specific geometry.

Table 6: Magnet-Magnet interaction (repulsion) - forces in the system
MP 20x5x5 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Sliding Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 54.03 kg / 119.11 lbs
6 121 Gs
8.10 kg / 17.87 lbs
8104 g / 79.5 N
 N/A
1 mm 48.76 kg / 107.50 lbs
11 242 Gs
7.31 kg / 16.13 lbs
7314 g / 71.8 N
 43.89 kg / 96.75 lbs
~0 Gs
2 mm 43.70 kg / 96.34 lbs
10 642 Gs
6.55 kg / 14.45 lbs
6555 g / 64.3 N
 39.33 kg / 86.71 lbs
~0 Gs
3 mm 38.98 kg / 85.94 lbs
10 051 Gs
5.85 kg / 12.89 lbs
5847 g / 57.4 N
 35.08 kg / 77.34 lbs
~0 Gs
5 mm 30.63 kg / 67.54 lbs
8 910 Gs
4.60 kg / 10.13 lbs
4595 g / 45.1 N
 27.57 kg / 60.78 lbs
~0 Gs
10 mm 15.96 kg / 35.19 lbs
6 432 Gs
2.39 kg / 5.28 lbs
2394 g / 23.5 N
 14.36 kg / 31.67 lbs
~0 Gs
20 mm 4.20 kg / 9.26 lbs
3 299 Gs
0.63 kg / 1.39 lbs
630 g / 6.2 N
 3.78 kg / 8.33 lbs
~0 Gs
50 mm 0.19 kg / 0.42 lbs
702 Gs
0.03 kg / 0.06 lbs
29 g / 0.3 N
 0.17 kg / 0.38 lbs
~0 Gs
60 mm 0.09 kg / 0.20 lbs
480 Gs
0.01 kg / 0.03 lbs
13 g / 0.1 N
 0.08 kg / 0.18 lbs
~0 Gs
70 mm 0.05 kg / 0.10 lbs
342 Gs
0.01 kg / 0.01 lbs
7 g / 0.1 N
 0.04 kg / 0.09 lbs
~0 Gs
80 mm 0.02 kg / 0.05 lbs
253 Gs
0.00 kg / 0.01 lbs
4 g / 0.0 N
 0.02 kg / 0.05 lbs
~0 Gs
90 mm 0.01 kg / 0.03 lbs
193 Gs
0.00 kg / 0.00 lbs
2 g / 0.0 N
 0.01 kg / 0.03 lbs
~0 Gs
100 mm 0.01 kg / 0.02 lbs
150 Gs
0.00 kg / 0.00 lbs
1 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
Two magnetic products attract each other from a much further distance than a neodymium and metal combination. Such a system of two magnets produces a massive flux and a wider radius of performance. Designing a solid fastener? Use a pair of magnets instead of one magnet and a steel. Remember that when attracting two neodymiums, the pinch force is massive. The repulsion force is marginally weaker than the attraction, but still impressive.
*The magnetic induction for N-N configuration drops to ~0 Gs at the midpoint between the magnets (due to field cancellation).
Important: Calculations apply to friction force of two matching magnets (friction ~0.15 for Ni-Ni layer).

Table 7: Hazards (electronics) - warnings
MP 20x5x5 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 14.5 cm
Hearing aid 10 Gs (1.0 mT) 11.5 cm
Mechanical watch 20 Gs (2.0 mT) 9.0 cm
Phone / Smartphone 40 Gs (4.0 mT) 6.5 cm
Remote 50 Gs (5.0 mT) 6.0 cm
Payment card 400 Gs (40.0 mT) 2.5 cm
HDD hard drive 600 Gs (60.0 mT) 2.0 cm
Powerful magnet radiation is a real danger to IT equipment and pacemakers. These neodymiums generate a field that destroys function of sensitive medical devices. Remember: the invisible magnetic field penetrates the body and housings. Exceptional care must be exercised by people with cochlear implants and drug dispensers. The risk also applies to: mechanical watches, car keys, membranes, and screens. Do not bring the product near payment cards, hard drives, or precise measuring instruments.

Table 8: Dynamics (cracking risk) - warning
MP 20x5x5 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 23.79 km/h
(6.61 m/s)
 0.24 J
30 mm 24.82 km/h
(6.89 m/s)
 0.26 J
50 mm 24.86 km/h
(6.90 m/s)
 0.26 J
100 mm 24.86 km/h
(6.91 m/s)
 0.26 J
Magnetic elements are very brittle – a strong collision with metal can result in shattering. Control the attraction moment – a neodymium left loose speeds with massive force. Impact energy can destroy the magnet or dangerous crushing to skin. Always hold the magnet 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 working with large magnets.

Table 9: Corrosion resistance
MP 20x5x5 / N38

Technical parameter Value / Description
Coating type [NiCuNi] Nickel
Layer structure Nickel - Copper - Nickel
Layer thickness 10-20 µm
Salt spray test (SST) ? 24 h
Recommended environment Indoors only (dry)
For outdoor applications, an epoxy coating is required; standard nickel is intended for indoor use. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Construction data (Pc)
MP 20x5x5 / N38

Parameter Value SI Unit / Description
Magnetic Flux 16 116 Mx 161.2 µWb
Pc Coefficient 1.13 High (Stable)
Total magnetic flux passing through the pole surface. Essential parameter for generator designers and motors. The Pc coefficient defines the working geometry.

Table 11: Hydrostatics and buoyancy
MP 20x5x5 / N38

Environment Effective steel pull Effect
Air (land) 6.49 kg Standard
Water (riverbed) 7.43 kg
(+0.94 kg buoyancy gain)
+14.5%
Warning: Remember to wipe the magnet thoroughly after removing it from water and apply a protective layer (e.g., oil) to avoid corrosion.
Water displaces steel, making heavy objects slightly lighter. Buoyancy helps in lifting finds.

1. Wall mount (shear)

*Caution: On a vertical surface, the magnet holds merely a fraction of its max power.

2. Efficiency vs thickness

*Thin steel (e.g. 0.5mm PC case) significantly weakens 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) = 1.13

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: 030186-2026
Measurement Calculator

Magnet pull force

Magnetic Induction

Put a figure in just one field to see the conversion for all other units right away.

View more deals

SM 32x225 [2xM8] / N42 - magnetic separator
Product available Ships today (order by 14:00)

SM 32x225 [2xM8] / N42 - magnetic separator

848.70 zł brutto / pcs
BM 950x180x70 [4x M8] - magnetic beam
Product available Ships today (order by 14:00)

BM 950x180x70 [4x M8] - magnetic beam

8564.49 zł brutto / pcs
SM 25x300 [2xM8] / N52 - magnetic separator
Product available Ships today (order by 14:00)

SM 25x300 [2xM8] / N52 - magnetic separator

910.20 zł brutto / pcs
CM PML-10 / N45 - magnetic gripper
Product available Ships today (order by 14:00)

CM PML-10 / N45 - magnetic gripper

2019.05 zł brutto / pcs
It is ideally suited for places where solid attachment of the magnet to the substrate is required without the risk of detachment. Mounting is clean and reversible, unlike gluing. It is also often used in advertising for fixing signs and in workshops for organizing tools.
This material behaves more like porcelain than steel, so it doesn't forgive mistakes during mounting. One turn too many can destroy the magnet, so do it slowly. The flat screw head should evenly press the magnet. Remember: cracking during assembly results from material properties, not a product defect.
Moisture can penetrate micro-cracks in the coating and cause oxidation of the magnet. Damage to the protective layer during assembly is the most common cause of rusting. If you must use it outside, paint it with anti-corrosion paint after mounting.
The inner hole diameter determines the maximum size of the mounting element. For magnets with a straight hole, a conical head can act like a wedge and burst the magnet. Aesthetic mounting requires selecting the appropriate head size.
It is a magnetic ring with a diameter of 20 mm and thickness 5 mm. The key parameter here is the lifting capacity amounting to approximately 6.49 kg (force ~63.68 N). The mounting hole diameter is precisely 5 mm.
The poles are located on the planes with holes, not on the sides of the ring. In the case of connecting two rings, make sure one is turned the right way. When ordering a larger quantity, magnets are usually packed in stacks, where they are already naturally paired.

Pros and cons of rare earth magnets.

Advantages

Besides their high retention, neodymium magnets are valued for these benefits:
  • They do not lose magnetism, even during approximately 10 years – the drop in strength is only ~1% (theoretically),
  • They feature excellent resistance to magnetic field loss due to external magnetic sources,
  • A magnet with a shiny silver surface has better aesthetics,
  • Magnets have huge magnetic induction on the surface,
  • Thanks to resistance to high temperature, they can operate (depending on the form) even at temperatures up to 230°C and higher...
  • Possibility of precise creating as well as adjusting to defined applications,
  • Fundamental importance in innovative solutions – they are utilized in mass storage devices, drive modules, medical devices, also modern systems.
  • Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Limitations

Disadvantages of neodymium magnets:
  • They are fragile upon too strong impacts. To avoid cracks, it is worth securing magnets using a steel holder. Such protection not only shields the magnet but also increases its resistance to damage
  • NdFeB magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of power (a factor is the shape as well as dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are very resistant to heat
  • Magnets exposed to a humid environment can corrode. Therefore during using outdoors, we suggest using waterproof magnets made of rubber, plastic or other material resistant to moisture
  • We recommend a housing - magnetic mount, due to difficulties in realizing threads inside the magnet and complex shapes.
  • Possible danger related to microscopic parts of magnets pose a threat, in case of ingestion, which becomes key in the context of child health protection. Furthermore, small components of these magnets are able to disrupt the diagnostic process medical when they are in the body.
  • Due to neodymium price, their price is higher than average,

Holding force characteristics

Maximum lifting capacity of the magnet – what affects it?

Magnet power is the result of a measurement for ideal contact conditions, taking into account:
  • with the application of a sheet made of low-carbon steel, ensuring maximum field concentration
  • with a thickness no less than 10 mm
  • with a surface cleaned and smooth
  • under conditions of ideal adhesion (surface-to-surface)
  • during detachment in a direction vertical to the plane
  • in stable room temperature

Practical aspects of lifting capacity – factors

Bear in mind that the working load will differ depending on elements below, in order of importance:
  • Distance – existence of any layer (rust, tape, air) interrupts the magnetic circuit, which reduces capacity steeply (even by 50% at 0.5 mm).
  • Pull-off angle – remember that the magnet holds strongest perpendicularly. Under shear forces, the capacity 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.
  • Metal type – not every steel reacts the same. High carbon content weaken the attraction effect.
  • Surface condition – ground elements ensure maximum contact, which increases force. Uneven metal reduce efficiency.
  • Thermal conditions – neodymium magnets have a negative temperature coefficient. At higher temperatures they lose power, and at low temperatures they can be stronger (up to a certain limit).

Holding force was checked on the plate surface of 20 mm thickness, when a perpendicular force was applied, however under parallel forces the holding force is lower. In addition, even a slight gap between the magnet and the plate lowers the lifting capacity.

Safe handling of NdFeB magnets
Protect data

Equipment safety: Neodymium magnets can damage data carriers and delicate electronics (heart implants, hearing aids, mechanical watches).

Immense force

Use magnets consciously. Their huge power can surprise even professionals. Plan your moves and respect their force.

Material brittleness

Protect your eyes. Magnets can explode upon violent connection, launching shards into the air. We recommend safety glasses.

Precision electronics

Note: rare earth magnets generate a field that confuses sensitive sensors. Maintain a safe distance from your phone, tablet, and navigation systems.

Bone fractures

Pinching hazard: The pulling power is so immense that it can result in hematomas, pinching, and broken bones. Protective gloves are recommended.

Pacemakers

For implant holders: Strong magnetic fields disrupt medical devices. Maintain at least 30 cm distance or request help to work with the magnets.

Do not drill into magnets

Fire hazard: Neodymium dust is highly flammable. Do not process magnets without safety gear as this may cause fire.

Allergic reactions

Some people experience a hypersensitivity to Ni, which is the typical protective layer for NdFeB magnets. Extended handling might lead to dermatitis. It is best to wear protective gloves.

Keep away from children

Only for adults. Small elements pose a choking risk, causing intestinal necrosis. Keep out of reach of children and animals.

Heat sensitivity

Control the heat. Heating the magnet to high heat will destroy its properties and pulling force.

Important! Learn more about hazards in the article: Safety of working with magnets.