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MPL 40x20x5 / N38 - lamellar magnet

lamellar magnet

Catalog no 020160

GTIN/EAN: 5906301811664

5.00
Load capacity 10.67 kg / 104.63 N Magnetic Induction 205.27 mT / 2053 Gs
length
40 mm [±0,1 mm]
Width
20 mm [±0,1 mm]
Height
5 mm [±0,1 mm]
Weight
30 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

see properties »

9.95 zł net / pcs

12.24 zł with VAT (23% VAT) / pcs

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Frequently asked questions

How much will a block magnet really hold?
The catalogue force is measured in full contact with smooth steel at least 10 mm thick, pulled perpendicular, at about 20 °C. On 1 mm sheet about 50% of that value remains, on 0.5 mm about 25%. Mounted on a vertical wall the realistic figure is 20–30%, because the load is then in shear rather than in tension.
What is the maximum working temperature?
Standard N-series grades up to 80 °C, and N50, N52 and N54 up to 60 °C. Above the maximum working temperature the loss stops being reversible. The Curie temperature, at which magnetic properties are lost completely, is about 310 °C.
What safety factor should I allow?
At least twice the mass of the item, and three to five times for vertical mounting. The margin covers sheet thickness, surface condition, any layer of paint or rust, and vibration.

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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Technical specification of the product - MPL 40x20x5 / N38 - lamellar magnet

Specification / characteristics - MPL 40x20x5 / N38 - lamellar magnet

properties
properties values
Cat. no. 020160
GTIN/EAN 5906301811664
Production/Distribution Dhit sp. z o.o.
ul. Zielona 14 05-850 Ożarów Mazowiecki PL
Country of origin Poland / China / Germany
Customs code 85059029
length 40 mm [±0,1 mm]
Width 20 mm [±0,1 mm]
Height 5 mm [±0,1 mm]
Weight 30 g
Magnetization Direction ↑ axial
Load capacity ~ ? 10.67 kg / 104.63 N
Magnetic Induction ~ ? 205.27 mT / 2053 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 40x20x5 / N38 - lamellar 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

Engineering analysis of the assembly - data

The following data constitute the outcome of a mathematical analysis. Results are based on algorithms for the class Nd2Fe14B. Operational conditions might slightly differ from theoretical values. Use these calculations as a reference point during assembly planning.

Table 1: Static pull force (pull vs distance) - interaction chart
MPL 40x20x5 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 2052 Gs
205.2 mT
 10.67 kg / 23.52 pounds
10670.0 g / 104.7 N
 critical level
1 mm 1956 Gs
195.6 mT
 9.69 kg / 21.37 pounds
9693.2 g / 95.1 N
 medium risk
2 mm 1839 Gs
183.9 mT
 8.57 kg / 18.89 pounds
8570.5 g / 84.1 N
 medium risk
3 mm 1711 Gs
171.1 mT
 7.41 kg / 16.34 pounds
7413.1 g / 72.7 N
 medium risk
5 mm 1444 Gs
144.4 mT
 5.28 kg / 11.65 pounds
5282.9 g / 51.8 N
 medium risk
10 mm 888 Gs
88.8 mT
 2.00 kg / 4.40 pounds
1996.5 g / 19.6 N
 weak grip
15 mm 545 Gs
54.5 mT
 0.75 kg / 1.66 pounds
752.0 g / 7.4 N
 weak grip
20 mm 346 Gs
34.6 mT
 0.30 kg / 0.67 pounds
302.9 g / 3.0 N
 weak grip
30 mm 156 Gs
15.6 mT
 0.06 kg / 0.14 pounds
61.9 g / 0.6 N
 weak grip
50 mm 46 Gs
4.6 mT
 0.01 kg / 0.01 pounds
5.4 g / 0.1 N
 weak grip
Grip strength drops drastically with every mm of gap. Remember that every additional insulation layer (e.g., dirt, varnish, veneer) strongly reduces the pull force. Magnets operate optimally in perfect adhesion; gap weakens the force. Analyze how flashily the parameters fall, when the product does not adhere directly to the metal substrate. When designing the mounting, discard redundant distances.

Table 2: Slippage load (vertical surface)
MPL 40x20x5 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 2.13 kg / 4.70 pounds
2134.0 g / 20.9 N
1 mm Stal (~0.2) 1.94 kg / 4.27 pounds
1938.0 g / 19.0 N
2 mm Stal (~0.2) 1.71 kg / 3.78 pounds
1714.0 g / 16.8 N
3 mm Stal (~0.2) 1.48 kg / 3.27 pounds
1482.0 g / 14.5 N
5 mm Stal (~0.2) 1.06 kg / 2.33 pounds
1056.0 g / 10.4 N
10 mm Stal (~0.2) 0.40 kg / 0.88 pounds
400.0 g / 3.9 N
15 mm Stal (~0.2) 0.15 kg / 0.33 pounds
150.0 g / 1.5 N
20 mm Stal (~0.2) 0.06 kg / 0.13 pounds
60.0 g / 0.6 N
30 mm Stal (~0.2) 0.01 kg / 0.03 pounds
12.0 g / 0.1 N
50 mm Stal (~0.2) 0.00 kg / 0.00 pounds
2.0 g / 0.0 N
This section calculates the theoretical force needed to start the downward movement of the magnet downwards along a vertical steel wall (assuming typical friction coefficient). This parameter is a function of the separation distance between the magnet and the metal.

Table 3: Wall mounting (sliding) - vertical pull
MPL 40x20x5 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
3.20 kg / 7.06 pounds
3201.0 g / 31.4 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
2.13 kg / 4.70 pounds
2134.0 g / 20.9 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
1.07 kg / 2.35 pounds
1067.0 g / 10.5 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
5.34 kg / 11.76 pounds
5335.0 g / 52.3 N
When hanging a magnet on a vertical wall (e.g., a board), it will only hold barely approx. 1/5 of its maximum pull force. Gravity and a weak degree of grip influence the fact that holders slip easier than they detach. Designing a wall mount? Note that the shear force is noticeably lower than the maximum static pull force. On a painted metal, the holder will slip down under a much lighter weight. Utilizing a rubberized pad can drastically improve the result.

Table 4: Material efficiency (substrate influence) - power losses
MPL 40x20x5 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
5%
 0.53 kg / 1.18 pounds
533.5 g / 5.2 N
1 mm
13%
 1.33 kg / 2.94 pounds
1333.8 g / 13.1 N
2 mm
25%
 2.67 kg / 5.88 pounds
2667.5 g / 26.2 N
3 mm
38%
 4.00 kg / 8.82 pounds
4001.2 g / 39.3 N
5 mm
63%
 6.67 kg / 14.70 pounds
6668.8 g / 65.4 N
10 mm
100%
 10.67 kg / 23.52 pounds
10670.0 g / 104.7 N
11 mm
100%
 10.67 kg / 23.52 pounds
10670.0 g / 104.7 N
12 mm
100%
 10.67 kg / 23.52 pounds
10670.0 g / 104.7 N
A thin metal plate is not enough to conduct the full magnetic flux, which squanders power of the holder. Should you attach a powerful product to a too thin substrate, the field will pass right through and the pull force will drop sharply. To utilize 100% of this magnet's power, you require a sufficiently solid piece of metal. The material oversaturation causes that on thin elements (e.g., car bodies), the holder works worse. We suggest choosing the steel dimension according to the table below.

Table 5: Thermal stability (material behavior) - power drop
MPL 40x20x5 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 10.67 kg / 23.52 pounds
10670.0 g / 104.7 N
 OK
40 °C -2.2% 10.44 kg / 23.01 pounds
10435.3 g / 102.4 N
 OK
60 °C -4.4% 10.20 kg / 22.49 pounds
10200.5 g / 100.1 N
80 °C -6.6% 9.97 kg / 21.97 pounds
9965.8 g / 97.8 N
100 °C -28.8% 7.60 kg / 16.75 pounds
7597.0 g / 74.5 N
Classic neodymiums irreversibly lose parameters above the temperature limit. Avoid high temperatures – heat can irreversibly damage this product. With increasing heat, the magnet's force momentarily drops. Avoid using this product close to heaters exceeding its operating temperature limit. Ignoring the limit will result in permanent loss of magnetism.
*Engineering note: Temperature resistance is determined by both grade, but also on the magnet's shape. Flat magnets (pancake types) risk losing magnetic properties at lower temperatures compared to rod magnets. The danger warning in the table indicates a risk of irreversible loss for this specific geometry.

Table 6: Magnet-Magnet interaction (repulsion) - field range
MPL 40x20x5 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Strength (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 20.78 kg / 45.80 pounds
3 495 Gs
3.12 kg / 6.87 pounds
3116 g / 30.6 N
 N/A
1 mm 19.88 kg / 43.83 pounds
4 015 Gs
2.98 kg / 6.57 pounds
2982 g / 29.3 N
 17.89 kg / 39.44 pounds
~0 Gs
2 mm 18.87 kg / 41.61 pounds
3 912 Gs
2.83 kg / 6.24 pounds
2831 g / 27.8 N
 16.99 kg / 37.45 pounds
~0 Gs
3 mm 17.80 kg / 39.24 pounds
3 800 Gs
2.67 kg / 5.89 pounds
2670 g / 26.2 N
 16.02 kg / 35.32 pounds
~0 Gs
5 mm 15.56 kg / 34.30 pounds
3 552 Gs
2.33 kg / 5.14 pounds
2334 g / 22.9 N
 14.00 kg / 30.87 pounds
~0 Gs
10 mm 10.29 kg / 22.68 pounds
2 888 Gs
1.54 kg / 3.40 pounds
1543 g / 15.1 N
 9.26 kg / 20.41 pounds
~0 Gs
20 mm 3.89 kg / 8.57 pounds
1 776 Gs
0.58 kg / 1.29 pounds
583 g / 5.7 N
 3.50 kg / 7.71 pounds
~0 Gs
50 mm 0.26 kg / 0.57 pounds
456 Gs
0.04 kg / 0.08 pounds
39 g / 0.4 N
 0.23 kg / 0.51 pounds
~0 Gs
60 mm 0.12 kg / 0.27 pounds
313 Gs
0.02 kg / 0.04 pounds
18 g / 0.2 N
 0.11 kg / 0.24 pounds
~0 Gs
70 mm 0.06 kg / 0.13 pounds
221 Gs
0.01 kg / 0.02 pounds
9 g / 0.1 N
 0.05 kg / 0.12 pounds
~0 Gs
80 mm 0.03 kg / 0.07 pounds
162 Gs
0.00 kg / 0.01 pounds
5 g / 0.0 N
 0.03 kg / 0.06 pounds
~0 Gs
90 mm 0.02 kg / 0.04 pounds
121 Gs
0.00 kg / 0.01 pounds
3 g / 0.0 N
 0.02 kg / 0.04 pounds
~0 Gs
100 mm 0.01 kg / 0.02 pounds
93 Gs
0.00 kg / 0.00 pounds
2 g / 0.0 N
 0.01 kg / 0.02 pounds
~0 Gs
Two magnetic products attract each other from a much further distance than a neodymium and metal combination. The connection of two magnets produces a massive flux and a wider radius of action. Want to build a powerful holder? Utilize two neodymiums instead of one magnet and a steel. Remember that when connecting a pair of magnets, the collision energy is extreme. The levitation is marginally weaker than the attraction, but still impressive.
*Flux density for N-N configuration reaches ~0 Gs at the geometric center of the gap (resulting from vector opposition).
Attention: Estimates show friction force of dual identical magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Protective zones (electronics) - warnings
MPL 40x20x5 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 11.5 cm
Hearing aid 10 Gs (1.0 mT) 9.0 cm
Mechanical watch 20 Gs (2.0 mT) 7.0 cm
Phone / Smartphone 40 Gs (4.0 mT) 5.5 cm
Car key 50 Gs (5.0 mT) 5.0 cm
Payment card 400 Gs (40.0 mT) 2.0 cm
HDD hard drive 600 Gs (60.0 mT) 1.5 cm
Extremely neodym field poses a serious hazard to electronics and pacemakers. These NdFeB products generate a flux that prevents correct functioning of digital equipment. Be aware: the unseen radiation acts through matter and plastic. Exceptional care must be taken by people with hearing aids and drug dispensers. The risk also applies to: automatic timepieces, car keys, speakers, and screens. Do not bring the product near payment cards, hard drives, or sensitive navigation tools.

Table 8: Dynamics (cracking risk) - warning
MPL 40x20x5 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 22.00 km/h
(6.11 m/s)
 0.56 J
30 mm 23.89 km/h
(6.64 m/s)
 0.66 J
50 mm 23.96 km/h
(6.66 m/s)
 0.66 J
100 mm 23.98 km/h
(6.66 m/s)
 0.67 J
Magnetic elements are prone to chipping – a strong collision with metal can result in shattering. Watch the impact speed – a neodymium left loose becomes dangerous. Impact energy can trigger coating fragments or injury to skin. Be sure to control the product during mounting so it doesn't slam with momentum against the metal. A contact at a velocity of dozens of km/h almost guarantees destruction of the magnet. Wear safety glasses when working with powerful specimens.

Table 9: Surface protection spec
MPL 40x20x5 / N38

Technical parameter Value / Description
Coating type [NiCuNi] Nickel
Layer structure Nickel - Copper - Nickel
Layer thickness 10-20 µm
Salt spray test (SST) ? 24 h
Recommended environment Indoors only (dry)
The SST (salt spray test) is an industry standard for determining coating lifespan in harsh conditions. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Construction data (Pc)
MPL 40x20x5 / N38

Parameter Value SI Unit / Description
Magnetic Flux 18 042 Mx 180.4 µWb
Pc Coefficient 0.23 Low (Flat)
Total magnetic flux passing through the pole surface. Key data in coil applications as well as sensors. The Pc coefficient defines the magnet's operating point.

Table 11: Submerged application
MPL 40x20x5 / N38

Environment Effective steel pull Effect
Air (land) 10.67 kg Standard
Water (riverbed) 12.22 kg
(+1.55 kg buoyancy gain)
+14.5%
Rust risk: Remember to wipe the magnet thoroughly after removing it from water and apply a protective layer (e.g., oil) to avoid corrosion.
In water, the magnet feels stronger thanks to Archimedes' principle. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Vertical hold

*Caution: On a vertical surface, the magnet retains just approx. 20-30% of its max power.

2. Steel saturation

*Thin steel (e.g. 0.5mm PC case) drastically reduces the holding force.

3. Heat tolerance

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

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.23

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

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%

Environmental data

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: 020160-2026
Measurement Calculator

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Model MPL 40x20x5 / N38 features a low profile and professional pulling force, making it an ideal solution for building separators and machines. As a block magnet with high power (approx. 10.67 kg), this product is available off-the-shelf from our warehouse in Poland. The durable anti-corrosion layer ensures a long lifespan in a dry environment, protecting the core from oxidation.
Separating strong flat magnets requires a technique based on sliding (moving one relative to the other), rather than forceful pulling apart. To separate the MPL 40x20x5 / N38 model, firmly slide one magnet over the edge of the other until the attraction force decreases. We recommend care, because after separation, the magnets may want to violently snap back together, which threatens pinching the skin. Using a screwdriver risks destroying the coating and permanently cracking the magnet.
Plate magnets MPL 40x20x5 / N38 are the foundation for many industrial devices, such as filters catching filings and linear motors. Thanks to the flat surface and high force (approx. 10.67 kg), they are ideal as hidden locks in furniture making and mounting elements in automation. Their rectangular shape facilitates precise gluing into milled sockets in wood or plastic.
For mounting flat magnets MPL 40x20x5 / N38, it is best to use two-component adhesives (e.g., UHU Endfest, Distal), which ensure a durable bond with metal or plastic. For lighter applications or mounting on smooth surfaces, branded foam tape (e.g., 3M VHB) will work, provided the surface is perfectly degreased. Avoid chemically aggressive glues or hot glue, which can demagnetize neodymium (above 80°C).
The magnetic axis runs through the shortest dimension, which is typical for gripper magnets. In practice, this means that this magnet has the greatest attraction force on its main planes (40x20 mm), which is ideal for flat mounting. Such a pole arrangement ensures maximum holding capacity when pressing against the sheet, creating a closed magnetic circuit.
The presented product is a neodymium magnet with precisely defined parameters: 40 mm (length), 20 mm (width), and 5 mm (thickness). It is a magnetic block with dimensions 40x20x5 mm and a self-weight of 30 g, ready to work at temperatures up to 80°C. The protective [NiCuNi] coating secures the magnet against corrosion.

Strengths as well as weaknesses of Nd2Fe14B magnets.

Advantages

In addition to their pulling strength, neodymium magnets provide the following advantages:
  • Their strength is durable, and after around ten years it decreases only by ~1% (theoretically),
  • Neodymium magnets remain remarkably resistant to magnetic field loss caused by magnetic disturbances,
  • In other words, due to the aesthetic finish of gold, the element gains a professional look,
  • The surface of neodymium magnets generates a intense magnetic field – this is a key feature,
  • Neodymium magnets are characterized by very high magnetic induction on the magnet surface and are able to act (depending on the shape) even at a temperature of 230°C or more...
  • Thanks to modularity in shaping and the ability to customize to individual projects,
  • Versatile presence in modern technologies – they are commonly used in magnetic memories, drive modules, medical devices, and other advanced devices.
  • Relatively small size with high pulling force – neodymium magnets offer high power in tiny dimensions, which makes them useful in miniature devices

Weaknesses

Disadvantages of NdFeB magnets:
  • They are prone to damage upon too strong impacts. To avoid cracks, it is worth securing magnets in special housings. Such protection not only shields the magnet but also increases its resistance to damage
  • Neodymium 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 when using outdoors, we advise using waterproof magnets made of rubber, plastic or other material protecting against moisture
  • Limited possibility of creating threads in the magnet and complex shapes - recommended is a housing - magnetic holder.
  • Possible danger related to microscopic parts of magnets pose a threat, when accidentally swallowed, which gains importance in the context of child health protection. It is also worth noting that tiny parts of these products are able to be problematic in diagnostics medical when they are in the body.
  • Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Holding force characteristics

Maximum holding power of the magnet – what affects it?

The lifting capacity listed is a measurement result executed under the following configuration:
  • with the use of a yoke made of low-carbon steel, ensuring maximum field concentration
  • possessing a thickness of minimum 10 mm to ensure full flux closure
  • with an ground contact surface
  • under conditions of gap-free contact (surface-to-surface)
  • during pulling in a direction vertical to the plane
  • in stable room temperature

Lifting capacity in real conditions – factors

It is worth knowing that the magnet holding will differ depending on elements below, starting with the most relevant:
  • Clearance – existence of any layer (rust, dirt, gap) acts as an insulator, which lowers power rapidly (even by 50% at 0.5 mm).
  • Angle of force application – highest force is available only during pulling at a 90° angle. The shear force of the magnet along the plate is typically many times smaller (approx. 1/5 of the lifting capacity).
  • Wall thickness – thin material does not allow full use of the magnet. Part of the magnetic field passes through the material instead of generating force.
  • Metal type – not every steel reacts the same. High carbon content worsen the interaction with the magnet.
  • Surface finish – ideal contact is obtained only on smooth steel. Any scratches and bumps reduce the real contact area, reducing force.
  • Temperature – heating the magnet results in weakening of force. Check the thermal limit for a given model.

Lifting capacity testing was performed on a smooth plate of optimal thickness, under a perpendicular pulling force, however under shearing force the load capacity is reduced by as much as fivefold. Additionally, even a small distance between the magnet’s surface and the plate reduces the lifting capacity.

H&S for magnets
Beware of splinters

Despite the nickel coating, the material is delicate and not impact-resistant. Avoid impacts, as the magnet may shatter into hazardous fragments.

Crushing force

Danger of trauma: The pulling power is so immense that it can result in hematomas, pinching, and even bone fractures. Protective gloves are recommended.

Thermal limits

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

Precision electronics

Navigation devices and mobile phones are highly susceptible to magnetic fields. Direct contact with a strong magnet can ruin the sensors in your phone.

Medical interference

Health Alert: Strong magnets can turn off pacemakers and defibrillators. Do not approach if you have medical devices.

Dust explosion hazard

Fire hazard: Rare earth powder is highly flammable. Do not process magnets in home conditions as this may cause fire.

Keep away from children

Neodymium magnets are not intended for children. Swallowing several magnets can lead to them attracting across intestines, which poses a critical condition and requires urgent medical intervention.

Immense force

Handle with care. Neodymium magnets attract from a distance and connect with huge force, often quicker than you can move away.

Avoid contact if allergic

Some people suffer from a hypersensitivity to nickel, which is the common plating for NdFeB magnets. Extended handling can result in skin redness. We strongly advise use protective gloves.

Electronic devices

Powerful magnetic fields can corrupt files on payment cards, HDDs, and storage devices. Maintain a gap of min. 10 cm.

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