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MPL 40x10x4x2[7/3.5] / N38 - lamellar magnet

lamellar magnet

Catalog no 020151

GTIN/EAN: 5906301811572

Load capacity 9.31 kg / 91.33 N Magnetic Induction 275.57 mT / 2756 Gs
length
40 mm [±0,1 mm]
Width
10 mm [±0,1 mm]
Height
4 mm [±0,1 mm]
Weight
12 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

technical specifications »

7.49 zł net / pcs

9.21 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 of the product - MPL 40x10x4x2[7/3.5] / N38 - lamellar magnet

Specification / characteristics - MPL 40x10x4x2[7/3.5] / N38 - lamellar magnet

properties
properties values
Cat. no. 020151
GTIN/EAN 5906301811572
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 10 mm [±0,1 mm]
Height 4 mm [±0,1 mm]
Weight 12 g
Magnetization Direction ↑ axial
Load capacity ~ ? 9.31 kg / 91.33 N
Magnetic Induction ~ ? 275.57 mT / 2756 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 40x10x4x2[7/3.5] / 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

Technical simulation of the assembly - technical parameters

Presented data represent the direct effect of a mathematical calculation. Values were calculated on models for the material Nd2Fe14B. Real-world performance may deviate from the simulation results. Use these data as a preliminary roadmap during assembly planning.

Table 1: Static force (force vs gap) - characteristics
MPL 40x10x4x2[7/3.5] / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 2755 Gs
275.5 mT
 9.31 kg / 20.53 pounds
9310.0 g / 91.3 N
 warning
1 mm 2413 Gs
241.3 mT
 7.14 kg / 15.75 pounds
7143.1 g / 70.1 N
 warning
2 mm 2044 Gs
204.4 mT
 5.13 kg / 11.31 pounds
5128.9 g / 50.3 N
 warning
3 mm 1703 Gs
170.3 mT
 3.56 kg / 7.85 pounds
3559.5 g / 34.9 N
 warning
5 mm 1173 Gs
117.3 mT
 1.69 kg / 3.72 pounds
1688.2 g / 16.6 N
 safe
10 mm 522 Gs
52.2 mT
 0.33 kg / 0.74 pounds
334.9 g / 3.3 N
 safe
15 mm 277 Gs
27.7 mT
 0.09 kg / 0.21 pounds
94.2 g / 0.9 N
 safe
20 mm 163 Gs
16.3 mT
 0.03 kg / 0.07 pounds
32.8 g / 0.3 N
 safe
30 mm 69 Gs
6.9 mT
 0.01 kg / 0.01 pounds
5.8 g / 0.1 N
 safe
50 mm 19 Gs
1.9 mT
 0.00 kg / 0.00 pounds
0.5 g / 0.0 N
 safe
Grip strength drops significantly with every mm of spacing. Keep in mind that every additional insulation layer (e.g., dirt, paint, rust) strongly reduces the pull force. Magnetic products work optimally at the point of direct contact; gap kills the force. Analyze how quickly the pull force drop, when the product does not touch tightly to the steel surface. When planning the arrangement, avoid unnecessary gaps.

Table 2: Vertical load (vertical surface)
MPL 40x10x4x2[7/3.5] / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 1.86 kg / 4.11 pounds
1862.0 g / 18.3 N
1 mm Stal (~0.2) 1.43 kg / 3.15 pounds
1428.0 g / 14.0 N
2 mm Stal (~0.2) 1.03 kg / 2.26 pounds
1026.0 g / 10.1 N
3 mm Stal (~0.2) 0.71 kg / 1.57 pounds
712.0 g / 7.0 N
5 mm Stal (~0.2) 0.34 kg / 0.75 pounds
338.0 g / 3.3 N
10 mm Stal (~0.2) 0.07 kg / 0.15 pounds
66.0 g / 0.6 N
15 mm Stal (~0.2) 0.02 kg / 0.04 pounds
18.0 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
This section shows the estimated weight limit necessary to cause the sliding of the magnet down on a vertical metal surface (considering typical friction). This value varies with the gap size between the magnet and the surface.

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MPL 40x10x4x2[7/3.5] / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
2.79 kg / 6.16 pounds
2793.0 g / 27.4 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
1.86 kg / 4.11 pounds
1862.0 g / 18.3 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.93 kg / 2.05 pounds
931.0 g / 9.1 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
4.66 kg / 10.26 pounds
4655.0 g / 45.7 N
When hanging a magnet on a vertical wall (e.g., a board), it will maintain barely about 20%-30% of its nominal power. Gravity as well as a low friction coefficient cause that products slip faster than they detach. Want to create a vertical fastening? Consider that the sliding force is noticeably lower than the maximum static pull force. On a painted metal, the holder will slip down under a much lighter cargo. Utilizing a rubberized layer can significantly increase the grip.

Table 4: Material efficiency (substrate influence) - sheet metal selection
MPL 40x10x4x2[7/3.5] / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.93 kg / 2.05 pounds
931.0 g / 9.1 N
1 mm
25%
 2.33 kg / 5.13 pounds
2327.5 g / 22.8 N
2 mm
50%
 4.66 kg / 10.26 pounds
4655.0 g / 45.7 N
3 mm
75%
 6.98 kg / 15.39 pounds
6982.5 g / 68.5 N
5 mm
100%
 9.31 kg / 20.53 pounds
9310.0 g / 91.3 N
10 mm
100%
 9.31 kg / 20.53 pounds
9310.0 g / 91.3 N
11 mm
100%
 9.31 kg / 20.53 pounds
9310.0 g / 91.3 N
12 mm
100%
 9.31 kg / 20.53 pounds
9310.0 g / 91.3 N
A thin metal plate is unable to take in the entire magnetic field, which squanders power of the holder. If you attach a powerful product to a weak sheet, the flux will pass right through and the holding will be smaller. To utilize full efficiency of this neodymium's power, you need a suitably thick backing of metal. The saturation phenomenon causes that on sheet metal structures (e.g., car bodies), the holder works worse. We recommend selecting the steel dimension from these parameters.

Table 5: Thermal stability (stability) - thermal limit
MPL 40x10x4x2[7/3.5] / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 9.31 kg / 20.53 pounds
9310.0 g / 91.3 N
 OK
40 °C -2.2% 9.11 kg / 20.07 pounds
9105.2 g / 89.3 N
 OK
60 °C -4.4% 8.90 kg / 19.62 pounds
8900.4 g / 87.3 N
80 °C -6.6% 8.70 kg / 19.17 pounds
8695.5 g / 85.3 N
100 °C -28.8% 6.63 kg / 14.61 pounds
6628.7 g / 65.0 N
Standard neodymium magnets lose strength after exceeding the maximum temperature. Protect against heat – high temperature can permanently damage this product. With increasing heat, the neodymium's power briefly lowers. Refrain from using this product in hot environments higher than its operating temperature limit. Ignoring the limit will result in irreversible degradation of magnetic properties.
*Technical advisory: Thermal stability is determined by both grade, and the Permeance Coefficient Pc. Low-profile magnets (low permeance coefficient) may lose charge permanently under lower heat stress than long magnets. Red status in the table points to a risk of irreversible loss for this specific geometry.

Table 6: Two magnets (repulsion) - field range
MPL 40x10x4x2[7/3.5] / N38

Gap (mm) Attraction (kg/lbs) (N-S) Lateral Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 18.71 kg / 41.25 pounds
4 164 Gs
2.81 kg / 6.19 pounds
2807 g / 27.5 N
 N/A
1 mm 16.57 kg / 36.53 pounds
5 185 Gs
2.49 kg / 5.48 pounds
2486 g / 24.4 N
 14.91 kg / 32.88 pounds
~0 Gs
2 mm 14.36 kg / 31.65 pounds
4 826 Gs
2.15 kg / 4.75 pounds
2153 g / 21.1 N
 12.92 kg / 28.48 pounds
~0 Gs
3 mm 12.24 kg / 26.98 pounds
4 455 Gs
1.84 kg / 4.05 pounds
1836 g / 18.0 N
 11.01 kg / 24.28 pounds
~0 Gs
5 mm 8.61 kg / 18.98 pounds
3 737 Gs
1.29 kg / 2.85 pounds
1291 g / 12.7 N
 7.75 kg / 17.08 pounds
~0 Gs
10 mm 3.39 kg / 7.48 pounds
2 346 Gs
0.51 kg / 1.12 pounds
509 g / 5.0 N
 3.05 kg / 6.73 pounds
~0 Gs
20 mm 0.67 kg / 1.48 pounds
1 045 Gs
0.10 kg / 0.22 pounds
101 g / 1.0 N
 0.61 kg / 1.34 pounds
~0 Gs
50 mm 0.03 kg / 0.06 pounds
207 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 / 0.03 pounds
138 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
96 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
69 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
51 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
39 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
 0.00 kg / 0.00 pounds
~0 Gs
Two strong neodymiums attract each other from a significantly greater distance than a magnet and sheet combination. Such a system of magnet-to-magnet creates a more powerful interaction and a further horizon of operation. Planning to create a strong closure? Apply two magnets instead of one magnet and a striker plate. Be careful that when attracting two neodymiums, the collision energy is massive. The levitation is marginally weaker than the attraction, but still significant.
*Field value between like poles reaches ~0 Gs in the exact middle of the gap (due to field cancellation).
Important: Calculations demonstrate friction force of two same neodymium magnets (friction ~0.15 for Ni-Ni layer).

Table 7: Hazards (electronics) - precautionary measures
MPL 40x10x4x2[7/3.5] / 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
Mechanical watch 20 Gs (2.0 mT) 5.0 cm
Mobile device 40 Gs (4.0 mT) 4.0 cm
Remote 50 Gs (5.0 mT) 3.5 cm
Payment card 400 Gs (40.0 mT) 1.5 cm
HDD hard drive 600 Gs (60.0 mT) 1.0 cm
Powerful magnet radiation is a large risk to IT equipment and pacemakers. These NdFeB products generate a flux that disrupts operation of digital equipment. Be aware: the invisible magnetic field passes through tissues and glass. Exceptional care must be exercised by people with hearing aids and insulin pumps. Also at risk are: mechanical watches, car keys, membranes, and screens. Do not bring the product near payment cards, hard drives, or precise measuring instruments.

Table 8: Collisions (kinetic energy) - warning
MPL 40x10x4x2[7/3.5] / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 24.25 km/h
(6.74 m/s)
 0.27 J
30 mm 24.84 km/h
(6.90 m/s)
 0.29 J
50 mm 24.85 km/h
(6.90 m/s)
 0.29 J
100 mm 24.86 km/h
(6.91 m/s)
 0.29 J
Neodymium magnets are prone to chipping – a strong collision with metal can result in shattering. Pay attention to connection velocity – a magnet released freely turns into a projectile. Kinetic force can destroy the magnet or injury to skin. Hold the magnet firmly 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 neodymium. Wear eye protection when playing with large magnets.

Table 9: Coating parameters (durability)
MPL 40x10x4x2[7/3.5] / N38

Technical parameter Value / Description
Coating type [NiCuNi] Nickel
Layer structure Nickel - Copper - Nickel
Layer thickness 10-20 µm
Salt spray test (SST) ? 24 h
Recommended environment Indoors only (dry)
For outdoor applications, an epoxy coating is required; standard nickel is intended for indoor use. Note the thickness of the protective layer.

Table 10: Construction data (Pc)
MPL 40x10x4x2[7/3.5] / N38

Parameter Value SI Unit / Description
Magnetic Flux 9 840 Mx 98.4 µWb
Pc Coefficient 0.26 Low (Flat)
Total magnetic flux emitted by the magnet pole. Key data for generator designers as well as sensors. The Pc coefficient defines the magnet's operating point.

Table 11: Underwater work (magnet fishing)
MPL 40x10x4x2[7/3.5] / N38

Environment Effective steel pull Effect
Air (land) 9.31 kg Standard
Water (riverbed) 10.66 kg
(+1.35 kg buoyancy gain)
+14.5%
Corrosion warning: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.
Contrary to myths, water does not block the magnetic field. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Wall mount (shear)

*Warning: On a vertical wall, the magnet holds just approx. 20-30% of its max power.

2. Steel thickness impact

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

3. Heat tolerance

*For standard magnets, the max working temp is 80°C.

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.26

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: 020151-2026
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This product is a very powerful plate magnet made of NdFeB material, which, with dimensions of 40x10x4 mm and a weight of 12 g, guarantees premium class connection. This rectangular block with a force of 91.33 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. To separate the MPL 40x10x4x2[7/3.5] / N38 model, firmly slide one magnet over the edge of the other until the attraction force decreases. We recommend extreme caution, because after separation, the magnets may want to violently snap back together, which threatens pinching the skin. Never use metal tools for prying, as the brittle NdFeB material may chip and damage your eyes.
Plate magnets MPL 40x10x4x2[7/3.5] / N38 are the foundation for many industrial devices, such as magnetic separators and linear motors. Thanks to the flat surface and high force (approx. 9.31 kg), they are ideal as closers 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 40x10x4x2[7/3.5] / N38, it is best to use strong epoxy glues (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. Remember to clean and degrease the magnet surface before gluing, which significantly increases the adhesion of the glue to the nickel coating.
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 (40x10 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), 10 mm (width), and 4 mm (thickness). It is a magnetic block with dimensions 40x10x4 mm and a self-weight of 12 g, ready to work at temperatures up to 80°C. The product meets the standards for N38 grade magnets.

Strengths as well as weaknesses of rare earth magnets.

Benefits

Apart from their strong magnetism, neodymium magnets have these key benefits:
  • They retain full power for nearly 10 years – the loss is just ~1% (according to analyses),
  • They maintain their magnetic properties even under external field action,
  • The use of an refined finish of noble metals (nickel, gold, silver) causes the element to present itself better,
  • Magnets have exceptionally strong magnetic induction on the surface,
  • Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
  • In view of the potential of accurate molding and customization to specialized projects, NdFeB magnets can be modeled in a variety of geometric configurations, which expands the range of possible applications,
  • Versatile presence in modern technologies – they find application in data components, electric motors, medical equipment, also technologically advanced constructions.
  • Relatively small size with high pulling force – neodymium magnets offer high power in small dimensions, which makes them useful in small systems

Cons

Cons of neodymium magnets: application proposals
  • Brittleness is one of their disadvantages. Upon strong impact they can fracture. We advise keeping them in a steel housing, which not only secures them against impacts but also raises their durability
  • We warn that neodymium magnets can lose their strength at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
  • When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as those in rubber or plastics, which prevent oxidation and corrosion.
  • We suggest a housing - magnetic holder, due to difficulties in realizing threads inside the magnet and complex shapes.
  • Potential hazard to health – tiny shards of magnets pose a threat, in case of ingestion, which becomes key in the context of child health protection. Furthermore, tiny parts of these devices are able to complicate diagnosis medical when they are in the body.
  • Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Pull force analysis

Maximum holding power of the magnet – what affects it?

The specified lifting capacity refers to the maximum value, recorded under laboratory conditions, namely:
  • with the contact of a yoke made of special test steel, ensuring full magnetic saturation
  • possessing a thickness of minimum 10 mm to ensure full flux closure
  • with a plane perfectly flat
  • under conditions of ideal adhesion (metal-to-metal)
  • during detachment in a direction vertical to the plane
  • in neutral thermal conditions

Magnet lifting force in use – key factors

During everyday use, the actual holding force results from a number of factors, ranked from the most important:
  • Gap between magnet and steel – every millimeter of distance (caused e.g. by varnish or dirt) significantly weakens the pulling force, often by half at just 0.5 mm.
  • Force direction – declared lifting capacity refers to detachment vertically. When attempting to slide, the magnet holds significantly lower power (often approx. 20-30% of nominal force).
  • Wall thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field passes through the material instead of converting into lifting capacity.
  • Material composition – different alloys attracts identically. High carbon content worsen the interaction with the magnet.
  • Surface structure – the more even the plate, the better the adhesion and stronger the hold. Roughness acts like micro-gaps.
  • Thermal environment – temperature increase causes a temporary drop of induction. It is worth remembering the maximum operating temperature for a given model.

Lifting capacity was determined with the use of a polished steel plate of suitable thickness (min. 20 mm), under perpendicular pulling force, however under attempts to slide the magnet the holding force is lower. In addition, even a minimal clearance between the magnet and the plate decreases the holding force.

H&S for magnets
This is not a toy

Only for adults. Tiny parts can be swallowed, causing severe trauma. Keep away from kids and pets.

Nickel allergy

Medical facts indicate that the nickel plating (standard magnet coating) is a potent allergen. If you have an allergy, prevent touching magnets with bare hands or opt for versions in plastic housing.

Threat to electronics

Powerful magnetic fields can erase data on payment cards, hard drives, and storage devices. Stay away of min. 10 cm.

Crushing risk

Big blocks can break fingers in a fraction of a second. Under no circumstances place your hand betwixt two attracting surfaces.

Machining danger

Combustion risk: Rare earth powder is explosive. Avoid machining magnets in home conditions as this risks ignition.

Health Danger

Patients with a heart stimulator must keep an large gap from magnets. The magnetism can interfere with the operation of the implant.

Handling guide

Use magnets with awareness. Their powerful strength can shock even experienced users. Stay alert and respect their power.

GPS Danger

Navigation devices and mobile phones are extremely susceptible to magnetism. Close proximity with a powerful NdFeB magnet can permanently damage the sensors in your phone.

Maximum temperature

Regular neodymium magnets (N-type) undergo demagnetization when the temperature exceeds 80°C. This process is irreversible.

Eye protection

Despite the nickel coating, the material is delicate and cannot withstand shocks. Avoid impacts, as the magnet may crumble into sharp, dangerous pieces.

Safety First! Need more info? Check our post: Why are neodymium magnets dangerous?