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MPL 25x12.5x5 / N38 - lamellar magnet

lamellar magnet

Catalog no 020136

GTIN/EAN: 5906301811428

5.00
Load capacity 7.72 kg / 75.74 N Magnetic Induction 299.70 mT / 2997 Gs
length
25 mm [±0,1 mm]
Width
12.5 mm [±0,1 mm]
Height
5 mm [±0,1 mm]
Weight
11.72 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

technical parameters »

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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 25x12.5x5 / N38 - lamellar magnet

Specification / characteristics - MPL 25x12.5x5 / N38 - lamellar magnet

properties
properties values
Cat. no. 020136
GTIN/EAN 5906301811428
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 12.5 mm [±0,1 mm]
Height 5 mm [±0,1 mm]
Weight 11.72 g
Magnetization Direction ↑ axial
Load capacity ~ ? 7.72 kg / 75.74 N
Magnetic Induction ~ ? 299.70 mT / 2997 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 25x12.5x5 / 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 represent the result of a physical calculation. Values are based on algorithms for the class Nd2Fe14B. Operational parameters may deviate from the simulation results. Please consider these calculations as a preliminary roadmap when designing systems.

Table 1: Static pull force (pull vs distance) - power drop
MPL 25x12.5x5 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 2996 Gs
299.6 mT
 7.72 kg / 17.02 pounds
7720.0 g / 75.7 N
 warning
1 mm 2705 Gs
270.5 mT
 6.29 kg / 13.87 pounds
6292.6 g / 61.7 N
 warning
2 mm 2384 Gs
238.4 mT
 4.89 kg / 10.77 pounds
4886.6 g / 47.9 N
 warning
3 mm 2067 Gs
206.7 mT
 3.67 kg / 8.10 pounds
3674.4 g / 36.0 N
 warning
5 mm 1517 Gs
151.7 mT
 1.98 kg / 4.36 pounds
1979.6 g / 19.4 N
 low risk
10 mm 702 Gs
70.2 mT
 0.42 kg / 0.93 pounds
424.1 g / 4.2 N
 low risk
15 mm 355 Gs
35.5 mT
 0.11 kg / 0.24 pounds
108.6 g / 1.1 N
 low risk
20 mm 198 Gs
19.8 mT
 0.03 kg / 0.07 pounds
33.6 g / 0.3 N
 low risk
30 mm 76 Gs
7.6 mT
 0.01 kg / 0.01 pounds
5.0 g / 0.0 N
 low risk
50 mm 20 Gs
2.0 mT
 0.00 kg / 0.00 pounds
0.3 g / 0.0 N
 low risk
Grip strength weakens drastically with every mm of gap. Remember that even the smallest gap (e.g., contamination, varnish, veneer) significantly diminishes the holding power. Neodymiums hold strongest in perfect adhesion; gap kills the power. Analyze how rapidly the pull force fall, when the product does not touch flatly to the steel surface. When planning the assembly, eliminate additional spacers.

Table 2: Shear capacity (vertical surface)
MPL 25x12.5x5 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 1.54 kg / 3.40 pounds
1544.0 g / 15.1 N
1 mm Stal (~0.2) 1.26 kg / 2.77 pounds
1258.0 g / 12.3 N
2 mm Stal (~0.2) 0.98 kg / 2.16 pounds
978.0 g / 9.6 N
3 mm Stal (~0.2) 0.73 kg / 1.62 pounds
734.0 g / 7.2 N
5 mm Stal (~0.2) 0.40 kg / 0.87 pounds
396.0 g / 3.9 N
10 mm Stal (~0.2) 0.08 kg / 0.19 pounds
84.0 g / 0.8 N
15 mm Stal (~0.2) 0.02 kg / 0.05 pounds
22.0 g / 0.2 N
20 mm Stal (~0.2) 0.01 kg / 0.01 pounds
6.0 g / 0.1 N
30 mm Stal (~0.2) 0.00 kg / 0.00 pounds
2.0 g / 0.0 N
50 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
The following data shows the theoretical shear load needed to initiate the slippage of the magnet downwards against a upright steel wall (assuming standard friction coefficient). The holding force is relative to the air gap between the magnet and the surface.

Table 3: Wall mounting (shearing) - vertical pull
MPL 25x12.5x5 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
2.32 kg / 5.11 pounds
2316.0 g / 22.7 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
1.54 kg / 3.40 pounds
1544.0 g / 15.1 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.77 kg / 1.70 pounds
772.0 g / 7.6 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
3.86 kg / 8.51 pounds
3860.0 g / 37.9 N
When placing a holder on a upright wall (e.g., a fridge), it you can count on only about 1/5 of nominal attraction strength. Gravity and a low friction coefficient cause that products move down faster than they detach. Planning a vertical fastening? Consider that the shear force is much weaker than the maximum static pull force. On a slippery surface, the element will slip down under a much lighter weight. Using a rubber coating can significantly raise the stability.

Table 4: Steel thickness (saturation) - power losses
MPL 25x12.5x5 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.77 kg / 1.70 pounds
772.0 g / 7.6 N
1 mm
25%
 1.93 kg / 4.25 pounds
1930.0 g / 18.9 N
2 mm
50%
 3.86 kg / 8.51 pounds
3860.0 g / 37.9 N
3 mm
75%
 5.79 kg / 12.76 pounds
5790.0 g / 56.8 N
5 mm
100%
 7.72 kg / 17.02 pounds
7720.0 g / 75.7 N
10 mm
100%
 7.72 kg / 17.02 pounds
7720.0 g / 75.7 N
11 mm
100%
 7.72 kg / 17.02 pounds
7720.0 g / 75.7 N
12 mm
100%
 7.72 kg / 17.02 pounds
7720.0 g / 75.7 N
A too thin steel is incapable of absorb the entire magnetic field, which squanders power of the holder. If you mount a strong magnet to a thin surface, the flux will penetrate right through and the attraction force will be weaker. To utilize the maximum of this magnet's potential, you require a sufficiently solid piece of metal. The saturation phenomenon means that on delicate walls (e.g., appliance housings), the magnet holds weaker. We suggest choosing the steel thickness from these parameters.

Table 5: Working in heat (material behavior) - power drop
MPL 25x12.5x5 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 7.72 kg / 17.02 pounds
7720.0 g / 75.7 N
 OK
40 °C -2.2% 7.55 kg / 16.65 pounds
7550.2 g / 74.1 N
 OK
60 °C -4.4% 7.38 kg / 16.27 pounds
7380.3 g / 72.4 N
80 °C -6.6% 7.21 kg / 15.90 pounds
7210.5 g / 70.7 N
100 °C -28.8% 5.50 kg / 12.12 pounds
5496.6 g / 53.9 N
Standard neodymium magnets change their properties parameters past the thermal threshold. Watch out for overheating – heat can irreversibly destroy this product. With increasing heat, the neodymium's force temporarily drops. Refrain from using this product close to ovens exceeding its safe range. Exceeding the critical threshold will lead to irreversible degradation of magnetic properties.
*Engineering note: Heat tolerance is determined by both grade, but also on the magnet's shape. Thin magnets (pancake types) may lose charge permanently under lower heat stress than long magnets. Warning indicator in the table indicates a risk of irreversible loss for this particular item.

Table 6: Magnet-Magnet interaction (repulsion) - forces in the system
MPL 25x12.5x5 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Sliding Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 17.29 kg / 38.13 pounds
4 511 Gs
2.59 kg / 5.72 pounds
2594 g / 25.4 N
 N/A
1 mm 15.73 kg / 34.68 pounds
5 715 Gs
2.36 kg / 5.20 pounds
2360 g / 23.2 N
 14.16 kg / 31.22 pounds
~0 Gs
2 mm 14.10 kg / 31.08 pounds
5 410 Gs
2.11 kg / 4.66 pounds
2114 g / 20.7 N
 12.69 kg / 27.97 pounds
~0 Gs
3 mm 12.48 kg / 27.52 pounds
5 091 Gs
1.87 kg / 4.13 pounds
1872 g / 18.4 N
 11.23 kg / 24.77 pounds
~0 Gs
5 mm 9.52 kg / 20.99 pounds
4 446 Gs
1.43 kg / 3.15 pounds
1428 g / 14.0 N
 8.57 kg / 18.89 pounds
~0 Gs
10 mm 4.43 kg / 9.78 pounds
3 034 Gs
0.67 kg / 1.47 pounds
665 g / 6.5 N
 3.99 kg / 8.80 pounds
~0 Gs
20 mm 0.95 kg / 2.09 pounds
1 404 Gs
0.14 kg / 0.31 pounds
142 g / 1.4 N
 0.85 kg / 1.88 pounds
~0 Gs
50 mm 0.03 kg / 0.06 pounds
238 Gs
0.00 kg / 0.01 pounds
4 g / 0.0 N
 0.02 kg / 0.05 pounds
~0 Gs
60 mm 0.01 kg / 0.02 pounds
153 Gs
0.00 kg / 0.00 pounds
2 g / 0.0 N
 0.01 kg / 0.02 pounds
~0 Gs
70 mm 0.01 kg / 0.01 pounds
103 Gs
0.00 kg / 0.00 pounds
1 g / 0.0 N
 0.00 kg / 0.00 pounds
~0 Gs
80 mm 0.00 kg / 0.01 pounds
73 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
 0.00 kg / 0.00 pounds
~0 Gs
90 mm 0.00 kg / 0.00 pounds
53 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
 0.00 kg / 0.00 pounds
~0 Gs
100 mm 0.00 kg / 0.00 pounds
40 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
 0.00 kg / 0.00 pounds
~0 Gs
Two strong neodymiums interact from a significantly greater distance than a magnet and steel setup. Such a system of two magnets creates a more powerful interaction and a wider radius of operation. Designing a strong closure? Use a pair of magnets instead of a neodymium and a steel. Remember that when bringing together two magnets, the pinch force is massive. The levitation is marginally weaker than the connection force, but still significant.
*Field value between like poles is approximately ~0 Gs at the midpoint between the magnets (resulting from vector opposition).
* Results refer to shear force of dual matching magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Safety (HSE) (implants) - precautionary measures
MPL 25x12.5x5 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 8.5 cm
Hearing aid 10 Gs (1.0 mT) 6.5 cm
Timepiece 20 Gs (2.0 mT) 5.0 cm
Phone / Smartphone 40 Gs (4.0 mT) 4.0 cm
Remote 50 Gs (5.0 mT) 4.0 cm
Payment card 400 Gs (40.0 mT) 1.5 cm
HDD hard drive 600 Gs (60.0 mT) 1.5 cm
A strong magnetic field is a serious hazard to electronic devices as well as medical implants. These neodymiums produce a field that disrupts operation of sensitive medical devices. Be aware: the unseen radiation passes through tissues and glass. Exceptional care must be taken by people with hearing aids and drug dispensers. The risk also applies to: mechanical watches, remotes, speakers, and displays. Do not place the magnet near cards, hard drives, or precise measuring instruments.

Table 8: Impact energy (cracking risk) - warning
MPL 25x12.5x5 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 24.38 km/h
(6.77 m/s)
 0.27 J
30 mm 25.08 km/h
(6.97 m/s)
 0.28 J
50 mm 25.08 km/h
(6.97 m/s)
 0.28 J
100 mm 25.09 km/h
(6.97 m/s)
 0.28 J
Neodymium magnets are delicate – a violent impact against metal causes immediate chipping. Control the attraction moment – a magnet released freely speeds with massive force. Kinetic force can destroy the magnet or injury to fingers. Hold the magnet firmly during bringing near metal so it doesn't slam with momentum against the metal. A collision at high speed almost guarantees destruction of the magnet. Use safety goggles when handling with large magnets.

Table 9: Coating parameters (durability)
MPL 25x12.5x5 / 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. Note the thickness of the protective layer.

Table 10: Construction data (Flux)
MPL 25x12.5x5 / N38

Parameter Value SI Unit / Description
Magnetic Flux 9 639 Mx 96.4 µWb
Pc Coefficient 0.35 Low (Flat)
Flux value passing through the pole surface. Key data when building generators as well as sensors. The Pc coefficient determines the working geometry.

Table 11: Underwater work (magnet fishing)
MPL 25x12.5x5 / N38

Environment Effective steel pull Effect
Air (land) 7.72 kg Standard
Water (riverbed) 8.84 kg
(+1.12 kg buoyancy gain)
+14.5%
Warning: 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. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Sliding resistance

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

2. Efficiency vs thickness

*Thin metal sheet (e.g. computer case) significantly weakens 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) = 0.35

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

Elemental analysis

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: 020136-2026
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Component MPL 25x12.5x5 / N38 features a flat shape and professional pulling force, making it a perfect solution for building separators and machines. As a block magnet with high power (approx. 7.72 kg), this product is available immediately 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. Watch your fingers! Magnets with a force of 7.72 kg can pinch very hard and cause hematomas. Using a screwdriver risks destroying the coating and permanently cracking the magnet.
Plate magnets MPL 25x12.5x5 / 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. 7.72 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 25x12.5x5 / N38, we recommend utilizing 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. Remember to clean and degrease the magnet surface before gluing, which significantly increases the adhesion of the glue to the nickel coating.
Standardly, the MPL 25x12.5x5 / N38 model is magnetized through the thickness (dimension 5 mm), which means that the N and S poles are located on its largest, flat surfaces. In practice, this means that this magnet has the greatest attraction force on its main planes (25x12.5 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: 25 mm (length), 12.5 mm (width), and 5 mm (thickness). The key parameter here is the lifting capacity amounting to approximately 7.72 kg (force ~75.74 N), which, with such a compact shape, proves the high power of the material. The product meets the standards for N38 grade magnets.

Strengths as well as weaknesses of Nd2Fe14B magnets.

Strengths

Besides their immense magnetic power, neodymium magnets offer the following advantages:
  • Their power is maintained, and after approximately ten years it drops only by ~1% (theoretically),
  • Neodymium magnets remain highly resistant to magnetic field loss caused by external interference,
  • The use of an aesthetic coating of noble metals (nickel, gold, silver) causes the element to have aesthetics,
  • Neodymium magnets generate maximum magnetic induction on a small surface, which ensures high operational effectiveness,
  • Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
  • Possibility of detailed shaping as well as optimizing to atypical conditions,
  • Universal use in advanced technology sectors – they are used in mass storage devices, motor assemblies, medical devices, as well as other advanced devices.
  • Thanks to efficiency per cm³, small magnets offer high operating force, occupying minimum space,

Cons

Cons of neodymium magnets: tips and applications.
  • They are prone to damage upon too strong impacts. To avoid cracks, it is worth protecting magnets using a steel holder. Such protection not only shields the magnet but also increases its resistance to damage
  • We warn that neodymium magnets can lose their power at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 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 immune to moisture, in case of application outdoors
  • We suggest cover - magnetic mount, due to difficulties in producing nuts inside the magnet and complicated forms.
  • Potential hazard resulting from small fragments of magnets pose a threat, when accidentally swallowed, which gains importance in the context of child safety. It is also worth noting that small components of these products can be problematic in diagnostics medical in case of swallowing.
  • With budget limitations the cost of neodymium magnets is a challenge,

Pull force analysis

Highest magnetic holding force – what affects it?

The specified lifting capacity represents the limit force, obtained under laboratory conditions, meaning:
  • with the use of a sheet made of special test steel, ensuring maximum field concentration
  • possessing a thickness of at least 10 mm to avoid saturation
  • with a plane perfectly flat
  • under conditions of no distance (surface-to-surface)
  • during pulling in a direction perpendicular to the mounting surface
  • at temperature approx. 20 degrees Celsius

Practical aspects of lifting capacity – factors

Holding efficiency impacted by working environment parameters, such as (from most important):
  • Space between surfaces – every millimeter of separation (caused e.g. by veneer or dirt) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
  • Force direction – note that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the nominal value.
  • Metal thickness – thin material does not allow full use of the magnet. Magnetic flux penetrates through instead of converting into lifting capacity.
  • Material type – the best choice is pure iron steel. Hardened steels may generate lower lifting capacity.
  • Surface quality – the smoother and more polished the surface, the larger the contact zone and higher the lifting capacity. Roughness creates an air distance.
  • Temperature – heating the magnet results in weakening of induction. Check the thermal limit for a given model.

Holding force was checked on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, whereas under attempts to slide the magnet the lifting capacity is smaller. In addition, even a slight gap between the magnet and the plate lowers the load capacity.

Safe handling of neodymium magnets
Material brittleness

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

Danger to the youngest

Always store magnets out of reach of children. Ingestion danger is significant, and the consequences of magnets connecting inside the body are life-threatening.

Safe distance

Powerful magnetic fields can destroy records on credit cards, hard drives, and other magnetic media. Keep a distance of at least 10 cm.

Allergic reactions

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

Magnetic interference

Note: neodymium magnets produce a field that interferes with precision electronics. Maintain a separation from your mobile, tablet, and navigation systems.

Handling guide

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

Hand protection

Pinching hazard: The attraction force is so immense that it can cause hematomas, pinching, and broken bones. Protective gloves are recommended.

Flammability

Fire hazard: Rare earth powder is explosive. Do not process magnets without safety gear as this may cause fire.

Warning for heart patients

Warning for patients: Strong magnetic fields affect electronics. Keep minimum 30 cm distance or ask another person to handle the magnets.

Demagnetization risk

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

Important! Want to know more? Read our article: Are neodymium magnets dangerous?