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MPL 40x20x5 / N38 - lamellar magnet

lamellar magnet

Catalog no 020160

GTIN/EAN: 5906301811664

5.00

length

40 mm [±0,1 mm]

Width

20 mm [±0,1 mm]

Height

5 mm [±0,1 mm]

Weight

30 g

Magnetization Direction

↑ axial

Load capacity

10.67 kg / 104.63 N

Magnetic Induction

205.27 mT / 2053 Gs

Coating

[NiCuNi] Nickel

view specifications »

12.24 ZŁ with VAT / pcs + price for transport

9.95 ZŁ net + 23% VAT / pcs

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Specifications along with structure of neodymium magnets can be reviewed on our force calculator.

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

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

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

Magnetic properties of material N38

Specification / characteristics MPL 40x20x5 / N38 - lamellar magnet
properties values units
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 analysis of the product - data

The following data represent the result of a mathematical analysis. Results were calculated on models for the class Nd2Fe14B. Real-world conditions might slightly deviate from the simulation results. Treat these calculations as a supplementary guide when designing systems.

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

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 2052 Gs
205.2 mT
 10.67 kg / 23.52 lbs
10670.0 g / 104.7 N
 critical level
1 mm 1956 Gs
195.6 mT
 9.69 kg / 21.37 lbs
9693.2 g / 95.1 N
 strong
2 mm 1839 Gs
183.9 mT
 8.57 kg / 18.89 lbs
8570.5 g / 84.1 N
 strong
3 mm 1711 Gs
171.1 mT
 7.41 kg / 16.34 lbs
7413.1 g / 72.7 N
 strong
5 mm 1444 Gs
144.4 mT
 5.28 kg / 11.65 lbs
5282.9 g / 51.8 N
 strong
10 mm 888 Gs
88.8 mT
 2.00 kg / 4.40 lbs
1996.5 g / 19.6 N
 low risk
15 mm 545 Gs
54.5 mT
 0.75 kg / 1.66 lbs
752.0 g / 7.4 N
 low risk
20 mm 346 Gs
34.6 mT
 0.30 kg / 0.67 lbs
302.9 g / 3.0 N
 low risk
30 mm 156 Gs
15.6 mT
 0.06 kg / 0.14 lbs
61.9 g / 0.6 N
 low risk
50 mm 46 Gs
4.6 mT
 0.01 kg / 0.01 lbs
5.4 g / 0.1 N
 low risk
Magnetic force drops sharply per each millimeter of gap. Remember that even the smallest gap (e.g., contamination, varnish, rust) noticeably weakens the grip. Magnets operate strongest at the point of direct contact; distance kills the power. Notice how quickly the load capacity fall, when the product does not adhere directly to the steel surface. When calculating the assembly, avoid unnecessary gaps.

Table 2: Slippage capacity (wall)
MPL 40x20x5 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 2.13 kg / 4.70 lbs
2134.0 g / 20.9 N
1 mm Stal (~0.2) 1.94 kg / 4.27 lbs
1938.0 g / 19.0 N
2 mm Stal (~0.2) 1.71 kg / 3.78 lbs
1714.0 g / 16.8 N
3 mm Stal (~0.2) 1.48 kg / 3.27 lbs
1482.0 g / 14.5 N
5 mm Stal (~0.2) 1.06 kg / 2.33 lbs
1056.0 g / 10.4 N
10 mm Stal (~0.2) 0.40 kg / 0.88 lbs
400.0 g / 3.9 N
15 mm Stal (~0.2) 0.15 kg / 0.33 lbs
150.0 g / 1.5 N
20 mm Stal (~0.2) 0.06 kg / 0.13 lbs
60.0 g / 0.6 N
30 mm Stal (~0.2) 0.01 kg / 0.03 lbs
12.0 g / 0.1 N
50 mm Stal (~0.2) 0.00 kg / 0.00 lbs
2.0 g / 0.0 N
This section indicates the estimated weight limit necessary to cause the downward movement of the magnet downwards on a vertical metal surface (assuming standard friction coefficient). This value depends on the separation distance between the magnet and the metal.

Table 3: Vertical assembly (sliding) - vertical pull
MPL 40x20x5 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
3.20 kg / 7.06 lbs
3201.0 g / 31.4 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
2.13 kg / 4.70 lbs
2134.0 g / 20.9 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
1.07 kg / 2.35 lbs
1067.0 g / 10.5 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
5.34 kg / 11.76 lbs
5335.0 g / 52.3 N
When mounting a element on a vertical plane (e.g., a board), it will only hold only approx. 1/5 of nominal attraction strength. Gravity and a weak degree of grip mean that holders slip faster than they pop off the substrate. Planning a hanger? Consider that the sliding force is noticeably lower than the maximum static pull force. On a slippery surface, the holder will give way down under a noticeably lighter cargo. Application of an anti-slip pad can drastically raise the stability.

Table 4: Steel thickness (substrate influence) - sheet metal selection
MPL 40x20x5 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
5%
 0.53 kg / 1.18 lbs
533.5 g / 5.2 N
1 mm
13%
 1.33 kg / 2.94 lbs
1333.8 g / 13.1 N
2 mm
25%
 2.67 kg / 5.88 lbs
2667.5 g / 26.2 N
3 mm
38%
 4.00 kg / 8.82 lbs
4001.2 g / 39.3 N
5 mm
63%
 6.67 kg / 14.70 lbs
6668.8 g / 65.4 N
10 mm
100%
 10.67 kg / 23.52 lbs
10670.0 g / 104.7 N
11 mm
100%
 10.67 kg / 23.52 lbs
10670.0 g / 104.7 N
12 mm
100%
 10.67 kg / 23.52 lbs
10670.0 g / 104.7 N
A too thin steel is unable to absorb the entire magnetic field, which weakens actual performance of the holder. If you install a neodymium to a weak sheet, the flux will pass right through and the holding will be smaller. To utilize 100% of this neodymium's power, you require a sufficiently solid element of metal. The saturation phenomenon means that on sheet metal structures (e.g., appliance housings), the magnet shows lower pull force. We advise picking the steel cross-section from these parameters.

Table 5: Thermal stability (stability) - thermal limit
MPL 40x20x5 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 10.67 kg / 23.52 lbs
10670.0 g / 104.7 N
 OK
40 °C -2.2% 10.44 kg / 23.01 lbs
10435.3 g / 102.4 N
 OK
60 °C -4.4% 10.20 kg / 22.49 lbs
10200.5 g / 100.1 N
80 °C -6.6% 9.97 kg / 21.97 lbs
9965.8 g / 97.8 N
100 °C -28.8% 7.60 kg / 16.75 lbs
7597.0 g / 74.5 N
Ordinary NdFeB products change their properties parameters above the temperature limit. Watch out for overheating – heat can irreversibly destroy this product. As the temperature rises, the neodymium's power briefly drops. Do not use this magnet in hot environments exceeding its operating temperature limit. Exceeding the critical threshold will cause irreversible degradation of magnetic properties.
*Important note: Temperature resistance is determined by both grade, as well as the dimension ratios. Low-profile magnets (low permeance coefficient) are more susceptible to demagnetization under lower heat stress than taller cylinders. The danger warning in the table points to permanent field degradation for this specific geometry.

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

Gap (mm) Attraction (kg/lbs) (N-S) Sliding Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 20.78 kg / 45.80 lbs
3 495 Gs
3.12 kg / 6.87 lbs
3116 g / 30.6 N
 N/A
1 mm 19.88 kg / 43.83 lbs
4 015 Gs
2.98 kg / 6.57 lbs
2982 g / 29.3 N
 17.89 kg / 39.44 lbs
~0 Gs
2 mm 18.87 kg / 41.61 lbs
3 912 Gs
2.83 kg / 6.24 lbs
2831 g / 27.8 N
 16.99 kg / 37.45 lbs
~0 Gs
3 mm 17.80 kg / 39.24 lbs
3 800 Gs
2.67 kg / 5.89 lbs
2670 g / 26.2 N
 16.02 kg / 35.32 lbs
~0 Gs
5 mm 15.56 kg / 34.30 lbs
3 552 Gs
2.33 kg / 5.14 lbs
2334 g / 22.9 N
 14.00 kg / 30.87 lbs
~0 Gs
10 mm 10.29 kg / 22.68 lbs
2 888 Gs
1.54 kg / 3.40 lbs
1543 g / 15.1 N
 9.26 kg / 20.41 lbs
~0 Gs
20 mm 3.89 kg / 8.57 lbs
1 776 Gs
0.58 kg / 1.29 lbs
583 g / 5.7 N
 3.50 kg / 7.71 lbs
~0 Gs
50 mm 0.26 kg / 0.57 lbs
456 Gs
0.04 kg / 0.08 lbs
39 g / 0.4 N
 0.23 kg / 0.51 lbs
~0 Gs
60 mm 0.12 kg / 0.27 lbs
313 Gs
0.02 kg / 0.04 lbs
18 g / 0.2 N
 0.11 kg / 0.24 lbs
~0 Gs
70 mm 0.06 kg / 0.13 lbs
221 Gs
0.01 kg / 0.02 lbs
9 g / 0.1 N
 0.05 kg / 0.12 lbs
~0 Gs
80 mm 0.03 kg / 0.07 lbs
162 Gs
0.00 kg / 0.01 lbs
5 g / 0.0 N
 0.03 kg / 0.06 lbs
~0 Gs
90 mm 0.02 kg / 0.04 lbs
121 Gs
0.00 kg / 0.01 lbs
3 g / 0.0 N
 0.02 kg / 0.04 lbs
~0 Gs
100 mm 0.01 kg / 0.02 lbs
93 Gs
0.00 kg / 0.00 lbs
2 g / 0.0 N
 0.01 kg / 0.02 lbs
~0 Gs
Two magnets attract each other from a significantly greater distance than a magnet and steel setup. The setup of magnet-to-magnet creates a more powerful interaction and a wider radius of operation. Planning to create a powerful holder? Utilize two neodymiums instead of one magnet and a steel. Remember that when connecting a pair of magnets, the pinch force is extreme. The repulsion force is a bit weaker than the connection force, but still large.
*Field value in repulsion mode drops to ~0 Gs at the midpoint of the gap (caused by magnetic field nullification).
Attention: Figures refer to sliding force of a pair of identical magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Safety (HSE) (implants) - precautionary measures
MPL 40x20x5 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 11.5 cm
Hearing aid 10 Gs (1.0 mT) 9.0 cm
Timepiece 20 Gs (2.0 mT) 7.0 cm
Phone / Smartphone 40 Gs (4.0 mT) 5.5 cm
Car key 50 Gs (5.0 mT) 5.0 cm
Payment card 400 Gs (40.0 mT) 2.0 cm
HDD hard drive 600 Gs (60.0 mT) 1.5 cm
A strong magnetic field is a real danger to IT equipment and pacemakers. These neodymiums produce a field that prevents correct functioning of digital equipment. Be aware: the invisible magnetic field acts through matter and glass. Exceptional care must be taken by people with cochlear implants and drug dispensers. Also at risk are: mechanical watches, car keys, speakers, and screens. Do not bring the product near payment cards, HDD media, or sensitive navigation tools.

Table 8: Impact energy (kinetic energy) - collision effects
MPL 40x20x5 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 21.13 km/h
(5.87 m/s)
 0.52 J
30 mm 33.06 km/h
(9.18 m/s)
 1.27 J
50 mm 42.54 km/h
(11.82 m/s)
 2.09 J
100 mm 60.15 km/h
(16.71 m/s)
 4.19 J
Magnetic elements are very brittle – a strong collision with metal can result in shattering. Pay attention to connection velocity – a neodymium left loose speeds with massive force. Kinetic force can destroy the magnet 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. Wear safety glasses when playing with powerful specimens.

Table 9: Coating parameters (durability)
MPL 40x20x5 / N38

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

Table 10: Electrical data (Flux)
MPL 40x20x5 / N38

Parameter Value SI Unit / Description
Magnetic Flux 18 042 Mx 180.4 µWb
Pc Coefficient 0.23 Low (Flat)
Total magnetic flux emitted by the pole surface. Key data in coil applications and motors. Pc value defines the magnet's operating point.

Table 11: Submerged application
MPL 40x20x5 / N38

Environment Effective steel pull Effect
Air (land) 10.67 kg Standard
Water (riverbed) 12.22 kg
(+1.55 kg buoyancy gain)
+14.5%
Warning: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!
Water displaces steel, making heavy objects slightly lighter. Buoyancy helps in lifting finds.
1. Sliding resistance

*Note: On a vertical surface, the magnet retains merely a fraction of its perpendicular strength.

2. Efficiency vs thickness

*Thin steel (e.g. computer case) severely reduces the holding force.

3. Thermal stability

*For N38 grade, the max working temp is 80°C.

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

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

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

Engineering data and GPSR
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%
Environmental data
recyclability (EoL) 100%
recycled raw materials ~10% (pre-cons)
carbon footprint low / zredukowany
waste code (EWC) 16 02 16
Safety card (GPSR)
responsible entity
Dhit sp. z o.o.
ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki
tel: +48 22 499 98 98 | e-mail: bok@dhit.pl
batch number/type
id: 020160-2026
Magnet Unit Converter
Magnet pull force
Field Strength
Input a number in one of the inputs, to see the rest will convert automatically.

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Component MPL 40x20x5 / N38 features a flat shape and professional pulling force, making it a perfect solution for building separators and machines. This rectangular block with a force of 104.63 N is ready for shipment in 24h, allowing for rapid realization of your project. The durable anti-corrosion layer ensures a long lifespan in a dry environment, protecting the core from oxidation.
The key to success is shifting the magnets along their largest connection plane (using e.g., the edge of a table), which is easier than trying to tear them apart directly. To separate the MPL 40x20x5 / 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. Using a screwdriver risks destroying the coating and permanently cracking the magnet.
They constitute a key element in the production of generators and material handling systems. Thanks to the flat surface and high force (approx. 10.67 kg), they are ideal as hidden locks in furniture making and mounting elements in automation. Their rectangular shape facilitates precise gluing into milled sockets in wood or plastic.
Cyanoacrylate glues (super glue type) are good only for small magnets; for larger plates, we recommend resins. 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.
Standardly, the MPL 40x20x5 / N38 model is magnetized axially (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 (40x20 mm), which is ideal for flat mounting. Such a pole arrangement ensures maximum holding capacity when pressing against the sheet, creating a closed magnetic circuit.
The presented product is a neodymium magnet with precisely defined parameters: 40 mm (length), 20 mm (width), and 5 mm (thickness). It is a magnetic block with dimensions 40x20x5 mm and a self-weight of 30 g, ready to work at temperatures up to 80°C. The protective [NiCuNi] coating secures the magnet against corrosion.

Advantages as well as disadvantages of Nd2Fe14B magnets.

Advantages

Apart from their superior power, neodymium magnets have these key benefits:
  • They retain magnetic properties for around 10 years – the drop is just ~1% (according to analyses),
  • Neodymium magnets prove to be highly resistant to magnetic field loss caused by external field sources,
  • Thanks to the metallic finish, the layer of nickel, gold, or silver-plated gives an aesthetic appearance,
  • Magnets are distinguished by extremely high magnetic induction on the outer layer,
  • Thanks to resistance to high temperature, they are capable of working (depending on the shape) even at temperatures up to 230°C and higher...
  • Thanks to modularity in designing and the capacity to customize to unusual requirements,
  • Significant place in modern industrial fields – they are used in magnetic memories, motor assemblies, diagnostic systems, also complex engineering applications.
  • Thanks to their power density, small magnets offer high operating force, occupying minimum space,

Disadvantages

Cons of neodymium magnets: weaknesses and usage proposals
  • They are prone to damage upon too strong impacts. To avoid cracks, it is worth protecting magnets in a protective case. Such protection not only protects the magnet but also increases its resistance to damage
  • 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.
  • Magnets exposed to a humid environment can corrode. Therefore when using outdoors, we recommend using waterproof magnets made of rubber, plastic or other material protecting against moisture
  • Due to limitations in creating threads and complex shapes in magnets, we propose using cover - magnetic mount.
  • Potential hazard related to microscopic parts of magnets are risky, in case of ingestion, which becomes key in the context of child safety. It is also worth noting that small elements of these magnets can disrupt the diagnostic process medical after entering the body.
  • Due to expensive raw materials, their price is relatively high,

Holding force characteristics

Maximum lifting force for a neodymium magnet – what it depends on?

The load parameter shown represents the peak performance, measured under optimal environment, specifically:
  • using a base made of high-permeability steel, acting as a magnetic yoke
  • with a cross-section of at least 10 mm
  • with an polished touching surface
  • with direct contact (without impurities)
  • under vertical force vector (90-degree angle)
  • in temp. approx. 20°C

Impact of factors on magnetic holding capacity in practice

Please note that the application force will differ depending on the following factors, starting with the most relevant:
  • Distance (betwixt the magnet and the plate), because even a microscopic distance (e.g. 0.5 mm) leads to a drastic drop in lifting capacity by up to 50% (this also applies to varnish, rust or dirt).
  • Direction of force – maximum parameter is obtained only during pulling at a 90° angle. The resistance to sliding of the magnet along the surface is typically several times lower (approx. 1/5 of the lifting capacity).
  • Element thickness – for full efficiency, the steel must be sufficiently thick. Paper-thin metal limits the lifting capacity (the magnet "punches through" it).
  • Steel grade – the best choice is high-permeability steel. Stainless steels may generate lower lifting capacity.
  • Surface condition – smooth surfaces guarantee perfect abutment, which improves field saturation. Rough surfaces reduce efficiency.
  • Thermal environment – temperature increase causes a temporary drop of force. Check the thermal limit for a given model.

Lifting capacity was determined by applying a steel plate with a smooth surface of suitable thickness (min. 20 mm), under perpendicular pulling force, however under attempts to slide the magnet the holding force is lower. Moreover, even a minimal clearance between the magnet’s surface and the plate decreases the lifting capacity.

Warnings
Dust is flammable

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

Compass and GPS

Navigation devices and mobile phones are highly susceptible to magnetic fields. Close proximity with a powerful NdFeB magnet can ruin the internal compass in your phone.

Thermal limits

Keep cool. Neodymium magnets are susceptible to temperature. If you require resistance above 80°C, ask us about HT versions (H, SH, UH).

Physical harm

Risk of injury: The pulling power is so great that it can cause blood blisters, pinching, and even bone fractures. Protective gloves are recommended.

Fragile material

Protect your eyes. Magnets can explode upon violent connection, launching sharp fragments into the air. Wear goggles.

Choking Hazard

Always keep magnets out of reach of children. Choking hazard is significant, and the effects of magnets clamping inside the body are fatal.

Electronic hazard

Data protection: Strong magnets can damage payment cards and sensitive devices (pacemakers, medical aids, mechanical watches).

Sensitization to coating

Warning for allergy sufferers: The Ni-Cu-Ni coating consists of nickel. If skin irritation occurs, cease working with magnets and use protective gear.

Immense force

Before starting, read the rules. Sudden snapping can destroy the magnet or hurt your hand. Be predictive.

Medical interference

People with a heart stimulator must maintain an safe separation from magnets. The magnetism can interfere with the operation of the implant.

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