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MPL 20x5x3 / N38 - lamellar magnet

Name: Dhit sp. z o.o.
Address: Kościuszki 6A, Ożarów Mazowiecki, Poland, 05-850, PL
Telephone: +48 22 499 98 98
Price range: PLN 1-6500
Rating: 5

lamellar magnet

Catalog no 020131

GTIN/EAN: 5906301811374

5.00

length

20 mm [±0,1 mm]

Width

5 mm [±0,1 mm]

Height

3 mm [±0,1 mm]

Weight

2.25 g

Magnetization Direction

↑ axial

Load capacity

3.46 kg / 33.96 N

Magnetic Induction

358.88 mT / 3589 Gs

Coating

[NiCuNi] Nickel

technical specifications »

1.058 ZŁ with VAT / pcs + price for transport

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Technical of the product - MPL 20x5x3 / N38 - lamellar magnet

Specification / characteristics - MPL 20x5x3 / N38 - lamellar magnet

properties

properties	values
Cat. no.	020131
GTIN/EAN	5906301811374
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	20 mm [±0,1 mm]
Width	5 mm [±0,1 mm]
Height	3 mm [±0,1 mm]
Weight	2.25 g
Magnetization Direction	↑ axial
Load capacity ~ ?	3.46 kg / 33.96 N
Magnetic Induction ~ ?	358.88 mT / 3589 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 20x5x3 / 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

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 assembly - data

The following data represent the result of a physical simulation. Results rely on models for the material Nd₂Fe₁₄B. Operational performance may differ. Treat these calculations as a reference point when designing systems.

Table 1: Static force (pull vs distance) - interaction chart
MPL 20x5x3 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	3585 Gs 358.5 mT	3.46 kg / 7.63 lbs 3460.0 g / 33.9 N	strong
1 mm	2619 Gs 261.9 mT	1.85 kg / 4.07 lbs 1846.6 g / 18.1 N	safe
2 mm	1818 Gs 181.8 mT	0.89 kg / 1.96 lbs 889.8 g / 8.7 N	safe
3 mm	1279 Gs 127.9 mT	0.44 kg / 0.97 lbs 440.2 g / 4.3 N	safe
5 mm	696 Gs 69.6 mT	0.13 kg / 0.29 lbs 130.6 g / 1.3 N	safe
10 mm	225 Gs 22.5 mT	0.01 kg / 0.03 lbs 13.6 g / 0.1 N	safe
15 mm	97 Gs 9.7 mT	0.00 kg / 0.01 lbs 2.5 g / 0.0 N	safe
20 mm	49 Gs 4.9 mT	0.00 kg / 0.00 lbs 0.6 g / 0.0 N	safe
30 mm	17 Gs 1.7 mT	0.00 kg / 0.00 lbs 0.1 g / 0.0 N	safe
50 mm	4 Gs 0.4 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	safe

Pulling power weakens sharply with every subsequent millimeter of distance. Keep in mind that even a microscopic distance (e.g., dirt, varnish, veneer) noticeably weakens the grip. Neodymiums hold strongest during direct contact; distance weakens the power. See how flashily the parameters fall, when the product does not adhere tightly to the metal substrate. When designing the arrangement, eliminate redundant distances.

Table 2: Shear force (wall)
MPL 20x5x3 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.69 kg / 1.53 lbs 692.0 g / 6.8 N
1 mm	Stal (~0.2)	0.37 kg / 0.82 lbs 370.0 g / 3.6 N
2 mm	Stal (~0.2)	0.18 kg / 0.39 lbs 178.0 g / 1.7 N
3 mm	Stal (~0.2)	0.09 kg / 0.19 lbs 88.0 g / 0.9 N
5 mm	Stal (~0.2)	0.03 kg / 0.06 lbs 26.0 g / 0.3 N
10 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 2.0 g / 0.0 N
15 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N
20 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N
30 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N

The following data shows the theoretical weight limit necessary to initiate the downward movement of the magnet downwards against a upright steel plate (considering typical friction coefficient). This parameter varies with the air gap between the magnet and the surface.

Table 3: Vertical assembly (shearing) - vertical pull
MPL 20x5x3 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	1.04 kg / 2.29 lbs 1038.0 g / 10.2 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.69 kg / 1.53 lbs 692.0 g / 6.8 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.35 kg / 0.76 lbs 346.0 g / 3.4 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	1.73 kg / 3.81 lbs 1730.0 g / 17.0 N

When mounting a magnet on a vertical surface (e.g., a board), it will maintain barely approx. 20%-30% of its nominal power. Gravity and a low friction coefficient influence the fact that holders slip easier than they detach. Designing a vertical fastening? Remember that the shear force is noticeably lower than the maximum static pull force. On a painted metal, the element will slide down under a noticeably lighter load. Application of an anti-slip layer can effectively raise the stability.

Table 4: Steel thickness (substrate influence) - power losses
MPL 20x5x3 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.35 kg / 0.76 lbs 346.0 g / 3.4 N
1 mm	25%	0.87 kg / 1.91 lbs 865.0 g / 8.5 N
2 mm	50%	1.73 kg / 3.81 lbs 1730.0 g / 17.0 N
3 mm	75%	2.59 kg / 5.72 lbs 2595.0 g / 25.5 N
5 mm	100%	3.46 kg / 7.63 lbs 3460.0 g / 33.9 N
10 mm	100%	3.46 kg / 7.63 lbs 3460.0 g / 33.9 N
11 mm	100%	3.46 kg / 7.63 lbs 3460.0 g / 33.9 N
12 mm	100%	3.46 kg / 7.63 lbs 3460.0 g / 33.9 N

A thin sheet is incapable of conduct the entire magnetic field, which squanders power of the magnet. If you install a neodymium to a too thin substrate, the magnetism will pass right through and the attraction force will be weaker. To squeeze full efficiency of this neodymium's potential, you need a suitably thick piece of metal. The material oversaturation causes that on thin elements (e.g., car bodies), the magnet holds weaker. We recommend selecting the steel thickness based on the following data.

Table 5: Working in heat (stability) - resistance threshold
MPL 20x5x3 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	3.46 kg / 7.63 lbs 3460.0 g / 33.9 N	OK
40 °C	-2.2%	3.38 kg / 7.46 lbs 3383.9 g / 33.2 N	OK
60 °C	-4.4%	3.31 kg / 7.29 lbs 3307.8 g / 32.4 N
80 °C	-6.6%	3.23 kg / 7.12 lbs 3231.6 g / 31.7 N
100 °C	-28.8%	2.46 kg / 5.43 lbs 2463.5 g / 24.2 N

Ordinary NdFeB products lose strength above the temperature limit. Watch out for overheating – excessive heat can irreversibly demagnetize this magnet. As the temperature rises, the neodymium's capacity momentarily lowers. Avoid using this product in hot environments higher than its operating temperature limit. Too high temperature will cause destruction of magnetism.

*Engineering note: Thermal stability depends not only on the material grade, as well as the dimension ratios. Thin magnets (low permeance coefficient) may lose charge permanently sooner than taller cylinders. Red status in the table points to permanent field degradation for this particular item.

Table 6: Two magnets (repulsion) - field collision
MPL 20x5x3 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	7.92 kg / 17.47 lbs 4 860 Gs	1.19 kg / 2.62 lbs 1189 g / 11.7 N	N/A
1 mm	5.94 kg / 13.10 lbs 6 209 Gs	0.89 kg / 1.97 lbs 891 g / 8.7 N	5.35 kg / 11.79 lbs ~0 Gs
2 mm	4.23 kg / 9.32 lbs 5 238 Gs	0.63 kg / 1.40 lbs 634 g / 6.2 N	3.81 kg / 8.39 lbs ~0 Gs
3 mm	2.94 kg / 6.49 lbs 4 369 Gs	0.44 kg / 0.97 lbs 441 g / 4.3 N	2.65 kg / 5.84 lbs ~0 Gs
5 mm	1.42 kg / 3.14 lbs 3 039 Gs	0.21 kg / 0.47 lbs 213 g / 2.1 N	1.28 kg / 2.82 lbs ~0 Gs
10 mm	0.30 kg / 0.66 lbs 1 393 Gs	0.04 kg / 0.10 lbs 45 g / 0.4 N	0.27 kg / 0.59 lbs ~0 Gs
20 mm	0.03 kg / 0.07 lbs 450 Gs	0.00 kg / 0.01 lbs 5 g / 0.0 N	0.03 kg / 0.06 lbs ~0 Gs
50 mm	0.00 kg / 0.00 lbs 56 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
60 mm	0.00 kg / 0.00 lbs 34 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
70 mm	0.00 kg / 0.00 lbs 23 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
80 mm	0.00 kg / 0.00 lbs 16 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 11 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 8 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs

Two magnets interact from a much further distance than a magnet and sheet setup. The setup of magnet-to-magnet generates a stronger field and a wider radius of action. Want to build a solid fastener? Utilize two neodymiums instead of one magnet and a striker plate. Remember that when bringing together two magnets, the pinch force is massive. The levitation is marginally weaker than the connection force, but still significant.
*Flux density for N-N configuration reaches ~0 Gs in the exact middle between the magnets (caused by magnetic field nullification).
Attention: Calculations apply to shear force of dual identical magnets (friction coefficient ~0.15 for Ni-Ni plating).

Table 7: Hazards (electronics) - precautionary measures
MPL 20x5x3 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	5.0 cm
Hearing aid	10 Gs (1.0 mT)	4.0 cm
Timepiece	20 Gs (2.0 mT)	3.0 cm
Mobile device	40 Gs (4.0 mT)	2.5 cm
Remote	50 Gs (5.0 mT)	2.0 cm
Payment card	400 Gs (40.0 mT)	1.0 cm
HDD hard drive	600 Gs (60.0 mT)	1.0 cm

Powerful magnet radiation is a serious hazard to electronics as well as pacemakers. These neodymiums generate a field that destroys function of digital equipment. Notice: the invisible magnetic field passes through tissues and glass. Exceptional care must be taken by people with cochlear implants and drug dispensers. Influence will be felt by: mechanical watches, car keys, speakers, and screens. Do not bring the product near payment cards, HDD media, or precise measuring instruments.

Table 8: Collisions (kinetic energy) - collision effects
MPL 20x5x3 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	39.65 km/h (11.01 m/s)	0.14 J
30 mm	68.50 km/h (19.03 m/s)	0.41 J
50 mm	88.43 km/h (24.56 m/s)	0.68 J
100 mm	125.06 km/h (34.74 m/s)	1.36 J

NdFeB products are very brittle – a strong collision with metal risks their cracking. Watch the impact speed – a magnet released freely speeds with massive force. Impact energy can destroy the magnet or injury to skin. Hold the magnet firmly during bringing near metal so it doesn't hit with great force against the metal. A collision at high speed ends with a crack of the magnet. Wear eye protection when handling with powerful specimens.

Table 9: Corrosion resistance
MPL 20x5x3 / 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 following table defines the conditions under which this product can be safely used. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Construction data (Flux)
MPL 20x5x3 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	3 197 Mx	32.0 µWb
P_c Coefficient	0.36	Low (Flat)

Flux value emitted by the magnet pole. Key data for generator designers and motors. The P_c coefficient defines the magnet's operating point.

Table 11: Hydrostatics and buoyancy
MPL 20x5x3 / N38

Environment	Effective steel pull	Effect
Air (land)	3.46 kg	Standard
Water (riverbed)	3.96 kg (+0.50 kg buoyancy gain)	+14.5%

Corrosion warning: Remember to wipe the magnet thoroughly after removing it from water and apply a protective layer (e.g., oil) to avoid corrosion.

Water displaces steel, making heavy objects slightly lighter. Buoyancy helps in lifting finds.

1. Sliding resistance

*Caution: On a vertical surface, the magnet retains merely approx. 20-30% of its perpendicular strength.

2. Efficiency vs thickness

*Thin metal sheet (e.g. 0.5mm PC case) drastically limits 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 P_c (Permeance Coefficient) = 0.36

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 P_c (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 P_c 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 specification and ecology

Material specification

iron (Fe)	64% – 68%
neodymium (Nd)	29% – 32%
boron (B)	1.1% – 1.2%
dysprosium (Dy)	0.5% – 2.0%
coating (Ni-Cu-Ni)	< 0.05%

Sustainability

recyclability (EoL)	100%
recycled raw materials	~10% (pre-cons)
carbon footprint	low / zredukowany
waste code (EWC)	16 02 16

Safety card (GPSR)

responsible entity

Dhit sp. z o.o.

ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki

tel: +48 22 499 98 98 | e-mail: bok@dhit.pl

batch number/type

id: 020131-2026

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Model MPL 20x5x3 / N38 features a low profile and professional pulling force, making it a perfect solution for building separators and machines. This magnetic block with a force of 33.96 N is ready for shipment in 24h, allowing for rapid realization of your project. Furthermore, its Ni-Cu-Ni coating protects it against corrosion in standard operating conditions, giving it an aesthetic appearance.

The key to success is sliding 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. Watch your fingers! Magnets with a force of 3.46 kg can pinch very hard and cause hematomas. Using a screwdriver risks destroying the coating and permanently cracking the magnet.

Plate magnets MPL 20x5x3 / N38 are the foundation for many industrial devices, such as magnetic separators and linear motors. They work great as fasteners under tiles, wood, or glass. 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. 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 20x5x3 / N38 model is magnetized through the thickness (dimension 3 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 (20x5 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: 20 mm (length), 5 mm (width), and 3 mm (thickness). It is a magnetic block with dimensions 20x5x3 mm and a self-weight of 2.25 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 neodymium magnets.

Strengths

Besides their magnetic performance, neodymium magnets are valued for these benefits:

Their power is durable, and after approximately 10 years it drops only by ~1% (theoretically),
They are extremely resistant to demagnetization induced by external magnetic fields,
The use of an refined coating of noble metals (nickel, gold, silver) causes the element to look better,
Magnets are characterized by excellent magnetic induction on the active area,
Thanks to resistance to high temperature, they are able to function (depending on the form) even at temperatures up to 230°C and higher...
Thanks to the possibility of precise forming and customization to unique needs, neodymium magnets can be modeled in a variety of geometric configurations, which amplifies use scope,
Huge importance in high-tech industry – they are used in hard drives, brushless drives, precision medical tools, also other advanced devices.
Thanks to concentrated force, small magnets offer high operating force, in miniature format,

Disadvantages

Cons of neodymium magnets and proposals for their use:

Susceptibility to cracking is one of their disadvantages. Upon intense impact they can fracture. We recommend keeping them in a strong case, which not only secures them against impacts but also raises their durability
Neodymium magnets lose their force under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
Magnets exposed to a humid environment can corrode. Therefore during using outdoors, we recommend using waterproof magnets made of rubber, plastic or other material resistant to moisture
We suggest a housing - magnetic mount, due to difficulties in creating nuts inside the magnet and complicated shapes.
Health risk related to microscopic parts of magnets pose a threat, when accidentally swallowed, which gains importance in the context of child health protection. It is also worth noting that tiny parts of these devices are able to disrupt the diagnostic process medical when they are in the body.
High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which hinders application in large quantities

Pull force analysis

Highest magnetic holding force – what affects it?

The force parameter is a theoretical maximum value executed under specific, ideal conditions:

with the contact of a yoke made of special test steel, ensuring maximum field concentration
with a cross-section of at least 10 mm
with an polished touching surface
without any air gap between the magnet and steel
under axial application of breakaway force (90-degree angle)
at ambient temperature approx. 20 degrees Celsius

What influences lifting capacity in practice

Bear in mind that the application force will differ subject to elements below, in order of importance:

Distance – existence of any layer (paint, tape, air) interrupts the magnetic circuit, which reduces capacity rapidly (even by 50% at 0.5 mm).
Load vector – maximum parameter is available only during perpendicular pulling. The resistance to sliding of the magnet along the surface is typically many times smaller (approx. 1/5 of the lifting capacity).
Wall thickness – thin material does not allow full use of the magnet. Part of the magnetic field penetrates through instead of generating force.
Steel grade – ideal substrate is pure iron steel. Stainless steels may have worse magnetic properties.
Smoothness – ideal contact is obtained only on smooth steel. Any scratches and bumps reduce the real contact area, weakening the magnet.
Thermal environment – temperature increase results in weakening of induction. It is worth remembering the maximum operating temperature for a given model.

Holding force was tested on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, whereas under attempts to slide the magnet the load capacity is reduced by as much as fivefold. In addition, even a small distance between the magnet and the plate reduces the lifting capacity.

Warnings

Crushing risk

Risk of injury: The attraction force is so immense that it can cause blood blisters, crushing, and even bone fractures. Use thick gloves.

No play value

Product intended for adults. Tiny parts can be swallowed, leading to intestinal necrosis. Store out of reach of kids and pets.

Heat sensitivity

Avoid heat. Neodymium magnets are susceptible to temperature. If you require operation above 80°C, look for special high-temperature series (H, SH, UH).

Life threat

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

Cards and drives

Do not bring magnets near a wallet, laptop, or screen. The magnetism can destroy these devices and erase data from cards.

Sensitization to coating

Certain individuals experience a hypersensitivity to Ni, which is the standard coating for NdFeB magnets. Frequent touching can result in skin redness. We recommend wear safety gloves.

Combustion hazard

Combustion risk: Rare earth powder is explosive. Avoid machining magnets in home conditions as this may cause fire.

Material brittleness

Neodymium magnets are sintered ceramics, meaning they are very brittle. Collision of two magnets leads to them cracking into shards.

Safe operation

Use magnets consciously. Their powerful strength can shock even experienced users. Plan your moves and do not underestimate their power.

Impact on smartphones

A powerful magnetic field negatively affects the operation of magnetometers in phones and GPS navigation. Maintain magnets near a device to prevent damaging the sensors.

Important! Learn more about risks in the article: Safety of working with magnets.

MPL 20x5x3 / N38 - lamellar magnet

Technical of the product - MPL 20x5x3 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering modeling of the assembly - data

Table 1: Static force (pull vs distance) - interaction chart MPL 20x5x3 / N38

Table 2: Shear force (wall) MPL 20x5x3 / N38

Table 3: Vertical assembly (shearing) - vertical pull MPL 20x5x3 / N38

Table 4: Steel thickness (substrate influence) - power losses MPL 20x5x3 / N38

Table 5: Working in heat (stability) - resistance threshold MPL 20x5x3 / N38

Table 6: Two magnets (repulsion) - field collision MPL 20x5x3 / N38

Table 7: Hazards (electronics) - precautionary measures MPL 20x5x3 / N38

Table 8: Collisions (kinetic energy) - collision effects MPL 20x5x3 / N38

Table 9: Corrosion resistance MPL 20x5x3 / N38

Table 10: Construction data (Flux) MPL 20x5x3 / N38

Table 11: Hydrostatics and buoyancy MPL 20x5x3 / N38

1. Sliding resistance

2. Efficiency vs thickness

3. Temperature resistance

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

Material specification

Sustainability

Pulling force

Field Strength

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Strengths as well as weaknesses of neodymium magnets.

Strengths

Disadvantages

Pull force analysis

Highest magnetic holding force – what affects it?

What influences lifting capacity in practice

Warnings

Crushing risk

No play value

Heat sensitivity

Life threat

Cards and drives

Sensitization to coating

Combustion hazard

Material brittleness

Safe operation

Impact on smartphones

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (pull vs distance) - interaction chart
MPL 20x5x3 / N38

Table 2: Shear force (wall)
MPL 20x5x3 / N38

Table 3: Vertical assembly (shearing) - vertical pull
MPL 20x5x3 / N38

Table 4: Steel thickness (substrate influence) - power losses
MPL 20x5x3 / N38

Table 5: Working in heat (stability) - resistance threshold
MPL 20x5x3 / N38

Table 6: Two magnets (repulsion) - field collision
MPL 20x5x3 / N38

Table 7: Hazards (electronics) - precautionary measures
MPL 20x5x3 / N38

Table 8: Collisions (kinetic energy) - collision effects
MPL 20x5x3 / N38

Table 9: Corrosion resistance
MPL 20x5x3 / N38

Table 10: Construction data (Flux)
MPL 20x5x3 / N38

Table 11: Hydrostatics and buoyancy
MPL 20x5x3 / N38