← previous
next →
Product available Ships tomorrow

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

lamellar magnet

Catalog no 020151

GTIN/EAN: 5906301811572

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

check technical data »

9.21 ZŁ with VAT / pcs + price for transport

7.49 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?
price from 1 pcs
7.49 ZŁ
9.21 ZŁ
price from 100 pcs
7.04 ZŁ
8.66 ZŁ
price from 350 pcs
6.59 ZŁ
8.11 ZŁ
Carbon Footprint – environmental impact GPSR Regulation – product safety
Need help making a decision?

Call us +48 888 99 98 98 if you prefer send us a note through request form the contact page.
Force along with shape of magnetic components can be checked with our power calculator.

Order by 14:00 and we’ll ship today!

Technical specification - 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
remenance Br [min. - max.] ? 12.2-12.6 kGs
remenance Br [min. - max.] ? 1220-1260 mT
coercivity bHc ? 10.8-11.5 kOe
coercivity bHc ? 860-915 kA/m
actual internal force iHc ≥ 12 kOe
actual internal force iHc ≥ 955 kA/m
energy density [min. - max.] ? 36-38 BH max MGOe
energy density [min. - max.] ? 287-303 BH max KJ/m
max. temperature ? ≤ 80 °C

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C
properties values units
Vickers hardness ≥550 Hv
Density ≥7.4 g/cm3
Curie Temperature TC 312 - 380 °C
Curie Temperature TF 593 - 716 °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 modeling of the magnet - data

These information constitute the outcome of a physical analysis. Values rely on algorithms for the class Nd2Fe14B. Actual parameters may differ. Use these data as a reference point when designing systems.

Table 1: Static pull force (pull vs gap) - power drop
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 LBS
9310.0 g / 91.3 N
 strong
1 mm 2413 Gs
241.3 mT
 7.14 kg / 15.75 LBS
7143.1 g / 70.1 N
 strong
2 mm 2044 Gs
204.4 mT
 5.13 kg / 11.31 LBS
5128.9 g / 50.3 N
 strong
3 mm 1703 Gs
170.3 mT
 3.56 kg / 7.85 LBS
3559.5 g / 34.9 N
 strong
5 mm 1173 Gs
117.3 mT
 1.69 kg / 3.72 LBS
1688.2 g / 16.6 N
 low risk
10 mm 522 Gs
52.2 mT
 0.33 kg / 0.74 LBS
334.9 g / 3.3 N
 low risk
15 mm 277 Gs
27.7 mT
 0.09 kg / 0.21 LBS
94.2 g / 0.9 N
 low risk
20 mm 163 Gs
16.3 mT
 0.03 kg / 0.07 LBS
32.8 g / 0.3 N
 low risk
30 mm 69 Gs
6.9 mT
 0.01 kg / 0.01 LBS
5.8 g / 0.1 N
 low risk
50 mm 19 Gs
1.9 mT
 0.00 kg / 0.00 LBS
0.5 g / 0.0 N
 low risk
Pulling power drops drastically with every mm of distance. Note that every additional insulation layer (e.g., dirt, paint, rust) significantly weakens the grip. Magnetic products hold optimally at the point of direct contact; gap weakens the force. Notice how quickly the load capacity fall, when the product does not adhere tightly to the metal substrate. When designing the mounting, discard additional spacers.

Table 2: Slippage hold (wall)
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 LBS
1862.0 g / 18.3 N
1 mm Stal (~0.2) 1.43 kg / 3.15 LBS
1428.0 g / 14.0 N
2 mm Stal (~0.2) 1.03 kg / 2.26 LBS
1026.0 g / 10.1 N
3 mm Stal (~0.2) 0.71 kg / 1.57 LBS
712.0 g / 7.0 N
5 mm Stal (~0.2) 0.34 kg / 0.75 LBS
338.0 g / 3.3 N
10 mm Stal (~0.2) 0.07 kg / 0.15 LBS
66.0 g / 0.6 N
15 mm Stal (~0.2) 0.02 kg / 0.04 LBS
18.0 g / 0.2 N
20 mm Stal (~0.2) 0.01 kg / 0.01 LBS
6.0 g / 0.1 N
30 mm Stal (~0.2) 0.00 kg / 0.00 LBS
2.0 g / 0.0 N
50 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
The table below shows the estimated weight limit necessary to initiate the sliding of the magnet down on a upright steel wall (assuming typical friction). The holding force is a function of the separation distance between the magnet and the metal.

Table 3: Wall mounting (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 LBS
2793.0 g / 27.4 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
1.86 kg / 4.11 LBS
1862.0 g / 18.3 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.93 kg / 2.05 LBS
931.0 g / 9.1 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
4.66 kg / 10.26 LBS
4655.0 g / 45.7 N
When mounting a holder on a vertical wall (e.g., a car body), it will only hold only approx. 1/5 of its maximum pull force. Gravitational force as well as a weak degree of grip influence the fact that products slip faster than they pull off. Planning a hanger? Consider that the sliding force is significantly lower than the maximum static pull force. On a painted metal, the holder will give way down under a significantly smaller load. Application of an anti-slip layer can significantly improve the result.

Table 4: Steel thickness (substrate influence) - power losses
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 LBS
931.0 g / 9.1 N
1 mm
25%
 2.33 kg / 5.13 LBS
2327.5 g / 22.8 N
2 mm
50%
 4.66 kg / 10.26 LBS
4655.0 g / 45.7 N
3 mm
75%
 6.98 kg / 15.39 LBS
6982.5 g / 68.5 N
5 mm
100%
 9.31 kg / 20.53 LBS
9310.0 g / 91.3 N
10 mm
100%
 9.31 kg / 20.53 LBS
9310.0 g / 91.3 N
11 mm
100%
 9.31 kg / 20.53 LBS
9310.0 g / 91.3 N
12 mm
100%
 9.31 kg / 20.53 LBS
9310.0 g / 91.3 N
A thin metal plate cannot focus the entire magnetic field, which squanders power of the magnet. If you install a neodymium to a weak sheet, the magnetism will pass right through and the pull force will drop sharply. To achieve the maximum of this magnet's power, you require a sufficiently solid backing of steel. The material oversaturation causes that on thin elements (e.g., car bodies), the product holds weaker. We advise picking the steel dimension based on the following data.

Table 5: Thermal resistance (material behavior) - 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 LBS
9310.0 g / 91.3 N
 OK
40 °C -2.2% 9.11 kg / 20.07 LBS
9105.2 g / 89.3 N
 OK
60 °C -4.4% 8.90 kg / 19.62 LBS
8900.4 g / 87.3 N
80 °C -6.6% 8.70 kg / 19.17 LBS
8695.5 g / 85.3 N
100 °C -28.8% 6.63 kg / 14.61 LBS
6628.7 g / 65.0 N
Ordinary NdFeB products change their properties power after exceeding the maximum temperature. Watch out for overheating – excessive heat can permanently damage this magnet. As the temperature rises, the neodymium's power momentarily drops. Avoid using this product close to heaters higher than its working range. Exceeding the critical threshold will lead to permanent loss of magnetism.
*Technical advisory: Heat tolerance depends not only on the material grade, but also on the magnet's shape. Flat magnets (pancake types) may lose charge permanently under lower heat stress compared to rod magnets. Warning indicator in the table signals permanent field degradation for this specific geometry.

Table 6: Two magnets (attraction) - 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 LBS
4 164 Gs
2.81 kg / 6.19 LBS
2807 g / 27.5 N
 N/A
1 mm 16.57 kg / 36.53 LBS
5 185 Gs
2.49 kg / 5.48 LBS
2486 g / 24.4 N
 14.91 kg / 32.88 LBS
~0 Gs
2 mm 14.36 kg / 31.65 LBS
4 826 Gs
2.15 kg / 4.75 LBS
2153 g / 21.1 N
 12.92 kg / 28.48 LBS
~0 Gs
3 mm 12.24 kg / 26.98 LBS
4 455 Gs
1.84 kg / 4.05 LBS
1836 g / 18.0 N
 11.01 kg / 24.28 LBS
~0 Gs
5 mm 8.61 kg / 18.98 LBS
3 737 Gs
1.29 kg / 2.85 LBS
1291 g / 12.7 N
 7.75 kg / 17.08 LBS
~0 Gs
10 mm 3.39 kg / 7.48 LBS
2 346 Gs
0.51 kg / 1.12 LBS
509 g / 5.0 N
 3.05 kg / 6.73 LBS
~0 Gs
20 mm 0.67 kg / 1.48 LBS
1 045 Gs
0.10 kg / 0.22 LBS
101 g / 1.0 N
 0.61 kg / 1.34 LBS
~0 Gs
50 mm 0.03 kg / 0.06 LBS
207 Gs
0.00 kg / 0.01 LBS
4 g / 0.0 N
 0.02 kg / 0.05 LBS
~0 Gs
60 mm 0.01 kg / 0.03 LBS
138 Gs
0.00 kg / 0.00 LBS
2 g / 0.0 N
 0.01 kg / 0.02 LBS
~0 Gs
70 mm 0.01 kg / 0.01 LBS
96 Gs
0.00 kg / 0.00 LBS
1 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
80 mm 0.00 kg / 0.01 LBS
69 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
90 mm 0.00 kg / 0.00 LBS
51 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
100 mm 0.00 kg / 0.00 LBS
39 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
Two strong neodymiums attract each other from a much further distance than a magnet and steel setup. The setup of magnet-to-magnet creates a more powerful interaction and a larger range of operation. Designing a strong closure? Use a pair of magnets instead of one magnet and a steel. Exercise caution that when connecting a pair of magnets, the pinch force is huge. The levitation is a bit weaker than the attraction, but still large.
*The magnetic induction for N-N configuration reaches ~0 Gs at the midpoint of the gap (resulting from vector opposition).
* Results apply to sliding force of dual identical magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Safety (HSE) (implants) - warnings
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
Phone / Smartphone 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 real danger to IT equipment as well as pacemakers. These NdFeB products generate a field that prevents correct functioning of digital equipment. Remember: the unseen radiation penetrates the body and housings. Special caution must be taken by people with cochlear implants and drug dispensers. Influence will be felt by: mechanical watches, remotes, speakers, and displays. Avoid contact with magnetic cards, hard drives, or precise measuring instruments.

Table 8: Dynamics (cracking risk) - collision effects
MPL 40x10x4x2[7/3.5] / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 28.72 km/h
(7.98 m/s)
 0.38 J
30 mm 48.67 km/h
(13.52 m/s)
 1.10 J
50 mm 62.82 km/h
(17.45 m/s)
 1.83 J
100 mm 88.83 km/h
(24.68 m/s)
 3.65 J
NdFeB products are very brittle – a violent impact against metal risks their cracking. Watch the impact speed – a magnet released freely becomes dangerous. Impact energy can trigger coating fragments or dangerous crushing to skin. Hold the magnet firmly during bringing near metal so it doesn't slam with momentum against the metal. A collision at high speed ends with a crack of the neodymium. Wear eye protection when handling with powerful specimens.

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)
Neodymium magnets are highly susceptible to corrosion without proper protection. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Construction data (Flux)
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)
Flux value emitted by the magnet pole. Essential parameter in coil applications and motors. The Pc coefficient determines the working geometry.

Table 11: Submerged application
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%
Rust risk: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.
Water displaces steel, making heavy objects slightly lighter. However, remember the water resistance when pulling the rope quickly.
1. Wall mount (shear)

*Caution: On a vertical wall, the magnet retains just a fraction of its perpendicular strength.

2. Steel saturation

*Thin metal sheet (e.g. 0.5mm PC case) severely reduces the holding force.

3. Temperature resistance

*For standard magnets, the safety limit is 80°C.

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

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

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.

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%
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: 020151-2026
Magnet Unit Converter
Magnet pull force
Magnetic Field
Enter a number in one of the inputs, and all other values change on the fly.

See more offers

SM 25x125 [2xM8] / N42 - magnetic separator
Product available Ships tomorrow

SM 25x125 [2xM8] / N42 - magnetic separator

393.60 ZŁ brutto / pcs
MW 2x10 / N38 - cylindrical magnet
Product available Ships tomorrow

MW 2x10 / N38 - cylindrical magnet

0.1845 ZŁ brutto / pcs
UMS 48x18x8.5x11.5 / N38 - conical magnetic holder
Product available Ships tomorrow

UMS 48x18x8.5x11.5 / N38 - conical magnetic holder

44.92 ZŁ brutto / pcs
MPL 40x10x4 / N38 - lamellar magnet
Product available Ships tomorrow

MPL 40x10x4 / N38 - lamellar magnet

4.87 ZŁ brutto / pcs
Component MPL 40x10x4x2[7/3.5] / N38 features a flat shape and industrial pulling force, making it an ideal solution for building separators and machines. As a magnetic bar with high power (approx. 9.31 kg), this product is available immediately from our warehouse in Poland. 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 9.31 kg can pinch very hard and cause hematomas. Using a screwdriver risks destroying the coating and permanently cracking the magnet.
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. Customers often choose this model for workshop organization on strips and for advanced DIY and modeling projects, where precision and power count.
Cyanoacrylate glues (super glue type) are good only for small magnets; for larger plates, we recommend resins. 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).
Standardly, the MPL 40x10x4x2[7/3.5] / N38 model is magnetized through the thickness (dimension 4 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 (40x10 mm), which is ideal for flat mounting. This is the most popular configuration for block magnets used in separators and holders.
This model is characterized by dimensions 40x10x4 mm, which, at a weight of 12 g, makes it an element with impressive energy density. 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 protective [NiCuNi] coating secures the magnet against corrosion.

Strengths as well as weaknesses of Nd2Fe14B magnets.

Advantages

Apart from their superior power, neodymium magnets have these key benefits:
  • Their magnetic field is durable, and after approximately ten years it decreases only by ~1% (theoretically),
  • Magnets very well resist against loss of magnetization caused by external fields,
  • By applying a smooth layer of nickel, the element gains an nice look,
  • Magnetic induction on the working part of the magnet turns out to be strong,
  • Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the form) even at high temperatures reaching 230°C or more...
  • In view of the possibility of accurate forming and adaptation to specialized needs, magnetic components can be produced in a wide range of forms and dimensions, which amplifies use scope,
  • Wide application in modern technologies – they find application in magnetic memories, motor assemblies, medical devices, and industrial machines.
  • Thanks to concentrated force, small magnets offer high operating force, with minimal size,

Disadvantages

Disadvantages of neodymium magnets:
  • Susceptibility to cracking is one of their disadvantages. Upon strong impact they can break. We recommend keeping them in a steel housing, which not only protects them against impacts but also increases their durability
  • 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.
  • They rust in a humid environment. For use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
  • Due to limitations in creating nuts and complex forms in magnets, we propose using a housing - magnetic mechanism.
  • Health risk related to microscopic parts of magnets are risky, in case of ingestion, which becomes key in the context of child health protection. It is also worth noting that small elements of these products are able to be problematic in diagnostics medical after entering the body.
  • High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which can limit application in large quantities

Lifting parameters

Magnetic strength at its maximum – what it depends on?

Magnet power is the result of a measurement for the most favorable conditions, assuming:
  • using a base made of high-permeability steel, serving as a magnetic yoke
  • with a thickness of at least 10 mm
  • characterized by smoothness
  • with direct contact (no paint)
  • for force acting at a right angle (pull-off, not shear)
  • at ambient temperature room level

Key elements affecting lifting force

In real-world applications, the actual lifting capacity is determined by several key aspects, ranked from the most important:
  • Distance – existence of foreign body (rust, dirt, air) acts as an insulator, which lowers power steeply (even by 50% at 0.5 mm).
  • Pull-off angle – remember that the magnet has greatest strength perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the nominal value.
  • Steel thickness – insufficiently thick steel does not accept the full field, causing part of the power to be wasted into the air.
  • Steel type – mild steel gives the best results. Alloy admixtures reduce magnetic properties and holding force.
  • Plate texture – smooth surfaces ensure maximum contact, which increases force. Uneven metal weaken the grip.
  • Operating temperature – NdFeB sinters have a sensitivity to temperature. When it is hot they lose power, and at low temperatures gain strength (up to a certain limit).

Lifting capacity was measured by applying a polished steel plate of suitable thickness (min. 20 mm), under perpendicular pulling force, whereas under parallel forces the lifting capacity is smaller. Moreover, even a small distance between the magnet’s surface and the plate lowers the lifting capacity.

Warnings
Fragile material

NdFeB magnets are sintered ceramics, meaning they are fragile like glass. Collision of two magnets will cause them breaking into small pieces.

Physical harm

Big blocks can break fingers in a fraction of a second. Never place your hand betwixt two strong magnets.

Dust explosion hazard

Drilling and cutting of neodymium magnets carries a risk of fire risk. Magnetic powder oxidizes rapidly with oxygen and is difficult to extinguish.

Keep away from electronics

A strong magnetic field negatively affects the functioning of magnetometers in smartphones and GPS navigation. Keep magnets close to a device to avoid damaging the sensors.

Warning for allergy sufferers

A percentage of the population have a sensitization to nickel, which is the common plating for NdFeB magnets. Prolonged contact may cause a rash. It is best to use safety gloves.

Adults only

Product intended for adults. Small elements can be swallowed, causing severe trauma. Keep away from kids and pets.

Thermal limits

Do not overheat. NdFeB magnets are sensitive to heat. If you require resistance above 80°C, inquire about special high-temperature series (H, SH, UH).

Medical interference

Life threat: Strong magnets can deactivate pacemakers and defibrillators. Stay away if you have electronic implants.

Caution required

Before starting, check safety instructions. Sudden snapping can destroy the magnet or injure your hand. Be predictive.

Safe distance

Do not bring magnets close to a wallet, computer, or screen. The magnetism can permanently damage these devices and erase data from cards.

Important! Learn more about hazards in the article: Magnet Safety Guide.