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MPL 20x5x3 / N38 - lamellar magnet

Name: Dhit sp. z o.o.
Address: Kościuszki 6A, Ożarów Mazowiecki, mazowieckie, 05-850, PL
Telephone: +48 22 499 98 98
Price range: 1-6500 PLN
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 / 33.93 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 data - 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 / 33.93 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

Technical analysis of the product - report

The following data are the outcome of a physical analysis. Values are based on algorithms for the material Nd₂Fe₁₄B. Real-world parameters may differ from theoretical values. Please consider these calculations as a supplementary guide for designers.

Table 1: Static force (pull vs gap) - characteristics
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	warning
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

Grip strength weakens significantly per each millimeter of distance. Note that even the smallest gap (e.g., dirt, varnish, dust) noticeably reduces the pull force. Neodymiums operate optimally during direct contact; air break weakens the force. Observe how flashily the pull force fall, when the product does not touch tightly to the metal substrate. When calculating the mounting, eliminate unnecessary gaps.

Table 2: Shear capacity (vertical surface)
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 indicates the theoretical force necessary to cause the sliding of the magnet vertically against a vertical steel wall (considering standard friction coefficient). This parameter depends on the air gap between the magnet and the metal.

Table 3: Wall mounting (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 hanging a element on a vertical surface (e.g., a fridge), it will maintain barely about 20%-30% of its maximum pull force. Gravitational force as well as a low friction coefficient mean that holders slip easier than they detach. Designing 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 cargo. Using a rubber layer can effectively increase the grip.

Table 4: Material efficiency (substrate influence) - sheet metal selection
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 metal plate is not enough to focus the full magnetic flux, which weakens actual performance of the magnet. Should you install a neodymium to a thin surface, the magnetism will pass right through and the attraction force will be weaker. To achieve the maximum of this magnet's potential, you require a sufficiently solid backing of steel. The saturation phenomenon means that on sheet metal structures (e.g., thin profiles), the holder works worse. We recommend selecting the steel thickness from these parameters.

Table 5: Thermal stability (material behavior) - power drop
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

Classic neodymiums change their properties power past the thermal threshold. Protect against heat – high temperature can permanently damage this product. With increasing heat, the magnet's power temporarily drops. Avoid using this magnet near heat sources exceeding its operating temperature limit. Too high temperature will lead to permanent loss of magnetic properties.

*Important note: Thermal stability depends not only on the material grade, but also on the magnet's shape. Thin magnets (low permeance coefficient) are more susceptible to demagnetization at lower temperatures compared to rod magnets. The danger warning in the table indicates permanent field degradation for this specific geometry.

Table 6: Magnet-Magnet interaction (attraction) - 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 strong neodymiums attract each other from a much further distance than a neodymium and metal setup. The setup of magnet-to-magnet creates a more powerful interaction and a further horizon of operation. Planning to create a powerful holder? Apply two magnets instead of a neodymium and a striker plate. Be careful that when connecting a pair of magnets, the impact force is extreme. The levitation is a bit weaker than the connection force, but still significant.
*The magnetic induction between like poles drops to ~0 Gs at the geometric center between the magnets (resulting from vector opposition).
* Figures refer to friction force of a pair of identical magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Protective zones (electronics) - warnings
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
Phone / Smartphone	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

Extremely neodym field poses a large risk to IT equipment and medical implants. These magnets produce a flux that disrupts operation of digital equipment. Notice: the unseen radiation penetrates the body and glass. Increased vigilance must be taken by people with cochlear implants and insulin pumps. The risk also applies to: mechanical watches, remotes, speakers, and displays. Avoid contact with magnetic cards, hard drives, or precise measuring instruments.

Table 8: Dynamics (cracking risk) - warning
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

Magnetic elements are delicate – a violent impact against metal can result in shattering. Control the attraction moment – a neodymium left loose turns into a projectile. Kinetic force can destroy the magnet or injury to fingers. Be sure to control the product during mounting so it doesn't hit violently against the steel surface. A contact at a velocity of dozens of km/h ends with a crack of the neodymium. Wear safety glasses when working with large magnets.

Table 9: Coating parameters (durability)
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)

For outdoor applications, an epoxy coating is required; standard nickel is intended for indoor use. Improper coating selection is the most common cause of magnet failure over time.

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

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

Total magnetic flux passing through the magnet pole. Essential parameter in coil applications as well as sensors. P_c value defines the magnet's operating point.

Table 11: Physics of underwater searching
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: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.

The magnetic field penetrates through water without any losses. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Shear force

*Warning: On a vertical wall, the magnet holds just a fraction of its nominal pull.

2. Steel saturation

*Thin steel (e.g. computer case) drastically limits 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 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 and environmental data

Elemental analysis

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

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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This product is a very powerful magnet in the shape of a plate made of NdFeB material, which, with dimensions of 20x5x3 mm and a weight of 2.25 g, guarantees premium class connection. This magnetic block with a force of 33.93 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 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. Never use metal tools for prying, as the brittle NdFeB material may chip and damage your eyes.

They constitute a key element in the production of generators and material handling systems. Thanks to the flat surface and high force (approx. 3.46 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.

For mounting flat magnets MPL 20x5x3 / 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 roughen and wash 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. Thanks to this, it works best when "sticking" to sheet metal or another magnet with a large surface area. This is the most popular configuration for block magnets used in separators and holders.

The presented product is a neodymium magnet with precisely defined parameters: 20 mm (length), 5 mm (width), and 3 mm (thickness). The key parameter here is the lifting capacity amounting to approximately 3.46 kg (force ~33.93 N), which, with such a flat shape, proves the high power of the material. The product meets the standards for N38 grade magnets.

Pros as well as cons of rare earth magnets.

Advantages

Besides their durability, neodymium magnets are valued for these benefits:

They retain full power for almost ten years – the drop is just ~1% (based on simulations),
They feature excellent resistance to magnetism drop when exposed to external magnetic sources,
In other words, due to the shiny finish of nickel, the element gains a professional look,
The surface of neodymium magnets generates a powerful magnetic field – this is one of their assets,
Through (adequate) combination of ingredients, they can achieve high thermal resistance, enabling operation at temperatures reaching 230°C and above...
Considering the potential of flexible shaping and customization to unique requirements, NdFeB magnets can be created in a broad palette of geometric configurations, which expands the range of possible applications,
Universal use in advanced technology sectors – they are utilized in hard drives, electric drive systems, medical devices, and modern systems.
Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in small dimensions, which makes them useful in compact constructions

Limitations

Problematic aspects of neodymium magnets and proposals for their use:

They are prone to damage upon too strong impacts. To avoid cracks, it is worth securing magnets using a steel holder. Such protection not only shields the magnet but also increases its resistance to damage
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 stability even at temperatures up to 230°C
Magnets exposed to a humid environment can rust. Therefore during using outdoors, we suggest using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
We recommend casing - magnetic mount, due to difficulties in creating threads inside the magnet and complicated shapes.
Health risk to health – tiny shards of magnets can be dangerous, in case of ingestion, which gains importance in the aspect of protecting the youngest. Additionally, small components of these magnets are able to complicate diagnosis medical after entering the body.
With mass production the cost of neodymium magnets can be a barrier,

Lifting parameters

Maximum magnetic pulling force – what contributes to it?

Breakaway force was defined for optimal configuration, including:

using a plate made of mild steel, serving as a circuit closing element
with a cross-section of at least 10 mm
with an ideally smooth touching surface
with direct contact (without paint)
during detachment in a direction perpendicular to the mounting surface
at temperature room level

Lifting capacity in real conditions – factors

In real-world applications, the real power is determined by a number of factors, presented from the most important:

Gap between magnet and steel – every millimeter of distance (caused e.g. by veneer or unevenness) significantly weakens the pulling force, often by half at just 0.5 mm.
Force direction – remember that the magnet has greatest strength perpendicularly. Under shear forces, the capacity drops significantly, often to levels of 20-30% of the maximum value.
Steel thickness – insufficiently thick plate does not accept the full field, causing part of the power to be escaped into the air.
Steel type – mild steel attracts best. Higher carbon content lower magnetic permeability and holding force.
Surface structure – the smoother and more polished the plate, the larger the contact zone and higher the lifting capacity. Roughness acts like micro-gaps.
Operating temperature – neodymium magnets have a negative temperature coefficient. When it is hot they are weaker, and in frost they can be stronger (up to a certain limit).

Holding force was tested on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, however under parallel forces the lifting capacity is smaller. In addition, even a small distance between the magnet and the plate lowers the holding force.

Safe handling of NdFeB magnets

Permanent damage

Avoid heat. Neodymium magnets are sensitive to heat. If you require resistance above 80°C, inquire about HT versions (H, SH, UH).

Bodily injuries

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

ICD Warning

Patients with a pacemaker have to keep an safe separation from magnets. The magnetism can stop the functioning of the life-saving device.

Magnets are brittle

Neodymium magnets are ceramic materials, which means they are prone to chipping. Collision of two magnets leads to them shattering into shards.

Allergy Warning

Medical facts indicate that nickel (standard magnet coating) is a strong allergen. If your skin reacts to metals, refrain from touching magnets with bare hands and choose encased magnets.

Caution required

Handle magnets with awareness. Their immense force can surprise even experienced users. Be vigilant and do not underestimate their power.

Keep away from electronics

GPS units and smartphones are highly sensitive to magnetism. Close proximity with a strong magnet can permanently damage the sensors in your phone.

Protect data

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

Dust explosion hazard

Combustion risk: Rare earth powder is highly flammable. Avoid machining magnets without safety gear as this risks ignition.

Swallowing risk

NdFeB magnets are not toys. Eating multiple magnets may result in them connecting inside the digestive tract, which constitutes a severe health hazard and requires immediate surgery.

Security! Need more info? Read our article: Why are neodymium magnets dangerous?

MPL 20x5x3 / N38 - lamellar magnet

Technical data - MPL 20x5x3 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical analysis of the product - report

Table 1: Static force (pull vs gap) - characteristics MPL 20x5x3 / N38

Table 2: Shear capacity (vertical surface) MPL 20x5x3 / N38

Table 3: Wall mounting (shearing) - vertical pull MPL 20x5x3 / N38

Table 4: Material efficiency (substrate influence) - sheet metal selection MPL 20x5x3 / N38

Table 5: Thermal stability (material behavior) - power drop MPL 20x5x3 / N38

Table 6: Magnet-Magnet interaction (attraction) - field collision MPL 20x5x3 / N38

Table 7: Protective zones (electronics) - warnings MPL 20x5x3 / N38

Table 8: Dynamics (cracking risk) - warning MPL 20x5x3 / N38

Table 9: Coating parameters (durability) MPL 20x5x3 / N38

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

Table 11: Physics of underwater searching MPL 20x5x3 / N38

1. Shear force

2. Steel saturation

3. Heat tolerance

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

Elemental analysis

Sustainability

Pulling force

Field Strength

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MW 4x4 / N38 - cylindrical magnet

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UMC 75x11/6x18 / N38 - cylindrical magnetic holder

Pros as well as cons of rare earth magnets.

Advantages

Limitations

Lifting parameters

Maximum magnetic pulling force – what contributes to it?

Lifting capacity in real conditions – factors

Safe handling of NdFeB magnets

Permanent damage

Bodily injuries

ICD Warning

Magnets are brittle

Allergy Warning

Caution required

Keep away from electronics

Protect data

Dust explosion hazard

Swallowing risk

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (pull vs gap) - characteristics
MPL 20x5x3 / N38

Table 2: Shear capacity (vertical surface)
MPL 20x5x3 / N38

Table 3: Wall mounting (shearing) - vertical pull
MPL 20x5x3 / N38

Table 4: Material efficiency (substrate influence) - sheet metal selection
MPL 20x5x3 / N38

Table 5: Thermal stability (material behavior) - power drop
MPL 20x5x3 / N38

Table 6: Magnet-Magnet interaction (attraction) - field collision
MPL 20x5x3 / N38

Table 7: Protective zones (electronics) - warnings
MPL 20x5x3 / N38

Table 8: Dynamics (cracking risk) - warning
MPL 20x5x3 / N38

Table 9: Coating parameters (durability)
MPL 20x5x3 / N38

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

Table 11: Physics of underwater searching
MPL 20x5x3 / N38