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MPL 25x25x10 / N38 - lamellar magnet

lamellar magnet

Catalog no 020137

GTIN/EAN: 5906301811435

5.00
Load capacity 19.39 kg / 190.25 N Magnetic Induction 361.04 mT / 3610 Gs
length
25 mm [±0,1 mm]
Width
25 mm [±0,1 mm]
Height
10 mm [±0,1 mm]
Weight
46.88 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

check parameters »

16.50 zł net / pcs

20.29 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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Detailed specification - MPL 25x25x10 / N38 - lamellar magnet

Specification / characteristics - MPL 25x25x10 / N38 - lamellar magnet

properties
properties values
Cat. no. 020137
GTIN/EAN 5906301811435
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 25 mm [±0,1 mm]
Width 25 mm [±0,1 mm]
Height 10 mm [±0,1 mm]
Weight 46.88 g
Magnetization Direction ↑ axial
Load capacity ~ ? 19.39 kg / 190.25 N
Magnetic Induction ~ ? 361.04 mT / 3610 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 25x25x10 / 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

Physical analysis of the assembly - report

Presented values represent the direct effect of a mathematical analysis. Results were calculated on models for the material Nd2Fe14B. Operational conditions might slightly differ. Please consider these data as a supplementary guide when designing systems.

Table 1: Static force (pull vs gap) - interaction chart
MPL 25x25x10 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 3610 Gs
361.0 mT
 19.39 kg / 42.75 pounds
19390.0 g / 190.2 N
 critical level
1 mm 3392 Gs
339.2 mT
 17.12 kg / 37.74 pounds
17117.7 g / 167.9 N
 critical level
2 mm 3156 Gs
315.6 mT
 14.82 kg / 32.68 pounds
14822.5 g / 145.4 N
 critical level
3 mm 2913 Gs
291.3 mT
 12.63 kg / 27.85 pounds
12631.8 g / 123.9 N
 critical level
5 mm 2436 Gs
243.6 mT
 8.83 kg / 19.46 pounds
8827.9 g / 86.6 N
 warning
10 mm 1464 Gs
146.4 mT
 3.19 kg / 7.04 pounds
3191.5 g / 31.3 N
 warning
15 mm 872 Gs
87.2 mT
 1.13 kg / 2.49 pounds
1131.5 g / 11.1 N
 weak grip
20 mm 538 Gs
53.8 mT
 0.43 kg / 0.95 pounds
430.4 g / 4.2 N
 weak grip
30 mm 234 Gs
23.4 mT
 0.08 kg / 0.18 pounds
81.8 g / 0.8 N
 weak grip
50 mm 68 Gs
6.8 mT
 0.01 kg / 0.02 pounds
6.9 g / 0.1 N
 weak grip
Pulling power decreases significantly per each millimeter of spacing. Keep in mind that even a very thin break (e.g., contamination, varnish, dust) noticeably diminishes the holding power. Magnetic products work optimally at the point of direct contact; air break drastically cuts the power. See how rapidly the pull force fall, when the product does not touch directly to the steel surface. When designing the assembly, avoid redundant distances.

Table 2: Vertical capacity (vertical surface)
MPL 25x25x10 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 3.88 kg / 8.55 pounds
3878.0 g / 38.0 N
1 mm Stal (~0.2) 3.42 kg / 7.55 pounds
3424.0 g / 33.6 N
2 mm Stal (~0.2) 2.96 kg / 6.53 pounds
2964.0 g / 29.1 N
3 mm Stal (~0.2) 2.53 kg / 5.57 pounds
2526.0 g / 24.8 N
5 mm Stal (~0.2) 1.77 kg / 3.89 pounds
1766.0 g / 17.3 N
10 mm Stal (~0.2) 0.64 kg / 1.41 pounds
638.0 g / 6.3 N
15 mm Stal (~0.2) 0.23 kg / 0.50 pounds
226.0 g / 2.2 N
20 mm Stal (~0.2) 0.09 kg / 0.19 pounds
86.0 g / 0.8 N
30 mm Stal (~0.2) 0.02 kg / 0.04 pounds
16.0 g / 0.2 N
50 mm Stal (~0.2) 0.00 kg / 0.00 pounds
2.0 g / 0.0 N
This section indicates the theoretical holding capacity necessary to cause the shifting of the magnet down on a upright metal surface (assuming standard friction coefficient). This parameter varies with the air gap between the magnet and the surface.

Table 3: Vertical assembly (shearing) - vertical pull
MPL 25x25x10 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
5.82 kg / 12.82 pounds
5817.0 g / 57.1 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
3.88 kg / 8.55 pounds
3878.0 g / 38.0 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
1.94 kg / 4.27 pounds
1939.0 g / 19.0 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
9.70 kg / 21.37 pounds
9695.0 g / 95.1 N
When hanging a magnet on a upright wall (e.g., a car body), it will only hold only about 20%-30% of its maximum pull force. Gravitational force and a low friction coefficient mean that holders slip faster than they pull off. Planning a wall mount? Remember that the sliding force is noticeably lower than the maximum static pull force. On a painted metal, the element will slip down under a significantly smaller load. Using a rubber pad can significantly increase the grip.

Table 4: Material efficiency (saturation) - sheet metal selection
MPL 25x25x10 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
5%
 0.97 kg / 2.14 pounds
969.5 g / 9.5 N
1 mm
13%
 2.42 kg / 5.34 pounds
2423.8 g / 23.8 N
2 mm
25%
 4.85 kg / 10.69 pounds
4847.5 g / 47.6 N
3 mm
38%
 7.27 kg / 16.03 pounds
7271.3 g / 71.3 N
5 mm
63%
 12.12 kg / 26.72 pounds
12118.8 g / 118.9 N
10 mm
100%
 19.39 kg / 42.75 pounds
19390.0 g / 190.2 N
11 mm
100%
 19.39 kg / 42.75 pounds
19390.0 g / 190.2 N
12 mm
100%
 19.39 kg / 42.75 pounds
19390.0 g / 190.2 N
A too thin steel is incapable of take in the entire magnetic field, which wastes potential of the holder. If you install a neodymium to a too thin substrate, the magnetism will penetrate right through and the attraction force will be weaker. To squeeze the maximum of this neodymium's potential, you need a suitably thick element of metal. The saturation phenomenon means that on delicate walls (e.g., appliance housings), the holder holds weaker. We advise picking the steel thickness according to the table below.

Table 5: Thermal stability (stability) - power drop
MPL 25x25x10 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 19.39 kg / 42.75 pounds
19390.0 g / 190.2 N
 OK
40 °C -2.2% 18.96 kg / 41.81 pounds
18963.4 g / 186.0 N
 OK
60 °C -4.4% 18.54 kg / 40.87 pounds
18536.8 g / 181.8 N
80 °C -6.6% 18.11 kg / 39.93 pounds
18110.3 g / 177.7 N
100 °C -28.8% 13.81 kg / 30.44 pounds
13805.7 g / 135.4 N
Classic neodymiums change their properties power after exceeding the maximum temperature. Avoid high temperatures – excessive heat can permanently damage this product. With every degree above norm, the magnet's power momentarily drops. Refrain from using this product near heat sources higher than its operating temperature limit. Ignoring the limit will result in permanent loss of magnetic properties.
*Technical advisory: Thermal stability is determined by both grade, and the Permeance Coefficient Pc. Thin magnets (low permeance coefficient) may lose charge permanently sooner than long magnets. Warning indicator in the table signals a risk of irreversible loss for this particular item.

Table 6: Two magnets (repulsion) - field range
MPL 25x25x10 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Strength (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 50.20 kg / 110.68 pounds
5 073 Gs
7.53 kg / 16.60 pounds
7531 g / 73.9 N
 N/A
1 mm 47.31 kg / 104.30 pounds
7 008 Gs
7.10 kg / 15.65 pounds
7097 g / 69.6 N
 42.58 kg / 93.87 pounds
~0 Gs
2 mm 44.32 kg / 97.71 pounds
6 783 Gs
6.65 kg / 14.66 pounds
6648 g / 65.2 N
 39.89 kg / 87.94 pounds
~0 Gs
3 mm 41.33 kg / 91.12 pounds
6 550 Gs
6.20 kg / 13.67 pounds
6200 g / 60.8 N
 37.20 kg / 82.01 pounds
~0 Gs
5 mm 35.49 kg / 78.25 pounds
6 070 Gs
5.32 kg / 11.74 pounds
5324 g / 52.2 N
 31.94 kg / 70.43 pounds
~0 Gs
10 mm 22.86 kg / 50.39 pounds
4 871 Gs
3.43 kg / 7.56 pounds
3429 g / 33.6 N
 20.57 kg / 45.35 pounds
~0 Gs
20 mm 8.26 kg / 18.22 pounds
2 929 Gs
1.24 kg / 2.73 pounds
1240 g / 12.2 N
 7.44 kg / 16.40 pounds
~0 Gs
50 mm 0.46 kg / 1.02 pounds
695 Gs
0.07 kg / 0.15 pounds
70 g / 0.7 N
 0.42 kg / 0.92 pounds
~0 Gs
60 mm 0.21 kg / 0.47 pounds
469 Gs
0.03 kg / 0.07 pounds
32 g / 0.3 N
 0.19 kg / 0.42 pounds
~0 Gs
70 mm 0.10 kg / 0.23 pounds
329 Gs
0.02 kg / 0.03 pounds
16 g / 0.2 N
 0.09 kg / 0.21 pounds
~0 Gs
80 mm 0.05 kg / 0.12 pounds
239 Gs
0.01 kg / 0.02 pounds
8 g / 0.1 N
 0.05 kg / 0.11 pounds
~0 Gs
90 mm 0.03 kg / 0.07 pounds
178 Gs
0.00 kg / 0.01 pounds
5 g / 0.0 N
 0.03 kg / 0.06 pounds
~0 Gs
100 mm 0.02 kg / 0.04 pounds
136 Gs
0.00 kg / 0.01 pounds
3 g / 0.0 N
 0.02 kg / 0.04 pounds
~0 Gs
Two strong neodymiums interact from a much further distance than a magnet and steel setup. The setup of two magnets creates a more powerful interaction and a larger range of action. Planning to create a powerful holder? Use a pair of magnets instead of one magnet and a steel. Exercise caution that when connecting a pair of magnets, the impact force is huge. The repulsion force is a bit weaker than the connection force, but still significant.
*The magnetic induction between like poles reaches ~0 Gs at the midpoint of the gap (caused by magnetic field nullification).
Note: Figures refer to friction force of dual same neodymium magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Safety (HSE) (implants) - warnings
MPL 25x25x10 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 13.0 cm
Hearing aid 10 Gs (1.0 mT) 10.5 cm
Timepiece 20 Gs (2.0 mT) 8.0 cm
Mobile device 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 serious hazard to electronic devices as well as pacemakers. These NdFeB products produce a flux that destroys function of digital equipment. Be aware: the unseen radiation acts through matter and housings. Increased vigilance must be exercised by people with cochlear implants and insulin pumps. The risk also applies to: mechanical watches, remotes, speakers, and displays. Avoid contact with magnetic cards, hard drives, or precise measuring instruments.

Table 8: Dynamics (cracking risk) - warning
MPL 25x25x10 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 22.97 km/h
(6.38 m/s)
 0.95 J
30 mm 24.73 km/h
(6.87 m/s)
 1.11 J
50 mm 24.79 km/h
(6.89 m/s)
 1.11 J
100 mm 24.80 km/h
(6.89 m/s)
 1.11 J
Magnetic elements are prone to chipping – a violent impact against metal can result in shattering. Pay attention to connection velocity – a magnet released freely becomes dangerous. Impact energy can trigger coating fragments or dangerous crushing to fingers. Hold the magnet firmly during installation so it doesn't slam with momentum against the metal. A collision at high speed ends with a crack of the magnet. Use safety goggles when working with large magnets.

Table 9: Corrosion resistance
MPL 25x25x10 / 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. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Construction data (Flux)
MPL 25x25x10 / N38

Parameter Value SI Unit / Description
Magnetic Flux 23 497 Mx 235.0 µWb
Pc Coefficient 0.46 Low (Flat)
Flux value emitted by the magnet pole. Essential parameter for generator designers and motors. Pc value determines the magnet's operating point.

Table 11: Hydrostatics and buoyancy
MPL 25x25x10 / N38

Environment Effective steel pull Effect
Air (land) 19.39 kg Standard
Water (riverbed) 22.20 kg
(+2.81 kg buoyancy gain)
+14.5%
Rust risk: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.
In water, the magnet feels stronger thanks to Archimedes' principle. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Vertical hold

*Note: On a vertical wall, the magnet retains merely a fraction of its nominal pull.

2. Steel thickness impact

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

3. Temperature resistance

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

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.46

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

Technical and environmental data

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%

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: 020137-2026
Magnet Unit Converter

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Component MPL 25x25x10 / N38 features a flat shape and professional pulling force, making it an ideal solution for building separators and machines. This magnetic block with a force of 190.25 N is ready for shipment in 24h, allowing for rapid realization of your project. Furthermore, its Ni-Cu-Ni coating secures it against corrosion in standard operating conditions, giving it an aesthetic appearance.
Separating block magnets requires a technique based on sliding (moving one relative to the other), rather than forceful pulling apart. Watch your fingers! Magnets with a force of 19.39 kg can pinch very hard and cause hematomas. Never use metal tools for prying, as the brittle NdFeB material may chip and damage your eyes.
Plate magnets MPL 25x25x10 / N38 are the foundation for many industrial devices, such as magnetic separators and linear motors. They work great as invisible mounts under tiles, wood, or glass. Their rectangular shape facilitates precise gluing into milled sockets in wood or plastic.
For mounting flat magnets MPL 25x25x10 / N38, we recommend utilizing two-component adhesives (e.g., UHU Endfest, Distal), which ensure a durable bond with metal or plastic. Double-sided tape cushions vibrations, which is an advantage when mounting in moving elements. 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. Thanks to this, it works best when "sticking" to sheet metal or another magnet with a large surface area. 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: 25 mm (length), 25 mm (width), and 10 mm (thickness). It is a magnetic block with dimensions 25x25x10 mm and a self-weight of 46.88 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.

Benefits

Besides their magnetic performance, neodymium magnets are valued for these benefits:
  • They have unchanged lifting capacity, and over around 10 years their attraction force decreases symbolically – ~1% (according to theory),
  • They feature excellent resistance to weakening of magnetic properties due to opposing magnetic fields,
  • By applying a smooth layer of nickel, the element acquires an elegant look,
  • Magnetic induction on the working layer of the magnet remains very high,
  • Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can work (depending on the form) even at a temperature of 230°C or more...
  • Considering the option of flexible shaping and customization to custom needs, NdFeB magnets can be manufactured in a variety of shapes and sizes, which amplifies use scope,
  • Key role in modern industrial fields – they are used in computer drives, brushless drives, medical equipment, as well as multitasking production systems.
  • Relatively small size with high pulling force – neodymium magnets offer high power in compact dimensions, which makes them useful in miniature devices

Disadvantages

Disadvantages of neodymium magnets:
  • At very strong impacts they can crack, therefore we recommend placing them in special holders. A metal housing provides additional protection against damage and increases the magnet's durability.
  • When exposed to high temperature, neodymium magnets experience a drop in strength. Often, when the temperature exceeds 80°C, their power decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
  • Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material resistant to moisture, in case of application outdoors
  • Due to limitations in producing nuts and complex forms in magnets, we recommend using a housing - magnetic mechanism.
  • Health risk resulting from small fragments of magnets pose a threat, in case of ingestion, which becomes key in the aspect of protecting the youngest. Furthermore, small elements of these devices can complicate diagnosis medical in case of swallowing.
  • With budget limitations the cost of neodymium magnets can be a barrier,

Lifting parameters

Highest magnetic holding force – what contributes to it?

The lifting capacity listed is a theoretical maximum value performed under specific, ideal conditions:
  • on a base made of mild steel, effectively closing the magnetic flux
  • with a cross-section of at least 10 mm
  • with a surface free of scratches
  • under conditions of ideal adhesion (surface-to-surface)
  • during pulling in a direction perpendicular to the mounting surface
  • at ambient temperature room level

Determinants of practical lifting force of a magnet

Bear in mind that the application force may be lower depending on the following factors, in order of importance:
  • Distance – existence of any layer (rust, tape, air) acts as an insulator, which reduces capacity steeply (even by 50% at 0.5 mm).
  • Pull-off angle – note that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the nominal value.
  • Plate thickness – too thin plate causes magnetic saturation, causing part of the flux to be wasted to the other side.
  • Material composition – different alloys reacts the same. Alloy additives worsen the interaction with the magnet.
  • Surface structure – the smoother and more polished the plate, the better the adhesion and stronger the hold. Roughness creates an air distance.
  • Heat – NdFeB sinters have a negative temperature coefficient. At higher temperatures they are weaker, and at low temperatures they can be stronger (up to a certain limit).

Lifting capacity testing was carried out on plates with a smooth surface of suitable thickness, under a perpendicular pulling force, whereas under attempts to slide the magnet the load capacity is reduced by as much as 5 times. Moreover, even a slight gap between the magnet and the plate lowers the lifting capacity.

Warnings
Electronic devices

Equipment safety: Neodymium magnets can damage payment cards and delicate electronics (pacemakers, medical aids, mechanical watches).

Keep away from electronics

Remember: rare earth magnets generate a field that interferes with precision electronics. Maintain a separation from your phone, tablet, and navigation systems.

Magnets are brittle

Despite metallic appearance, the material is brittle and not impact-resistant. Avoid impacts, as the magnet may crumble into sharp, dangerous pieces.

Power loss in heat

Regular neodymium magnets (N-type) undergo demagnetization when the temperature goes above 80°C. The loss of strength is permanent.

Warning for allergy sufferers

Nickel alert: The nickel-copper-nickel coating consists of nickel. If an allergic reaction happens, cease working with magnets and wear gloves.

Bodily injuries

Mind your fingers. Two powerful magnets will snap together immediately with a force of several hundred kilograms, destroying everything in their path. Exercise extreme caution!

Pacemakers

For implant holders: Powerful magnets affect medical devices. Keep minimum 30 cm distance or request help to handle the magnets.

Safe operation

Handle with care. Neodymium magnets attract from a distance and snap with massive power, often faster than you can react.

Flammability

Powder generated during machining of magnets is combustible. Avoid drilling into magnets without proper cooling and knowledge.

Choking Hazard

Only for adults. Tiny parts can be swallowed, leading to serious injuries. Store away from kids and pets.

Safety First! Need more info? Read our article: Why are neodymium magnets dangerous?