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MPL 50x20x5 / 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 020473

GTIN/EAN: 5906301811930

5.00

length

50 mm [±0,1 mm]

Width

20 mm [±0,1 mm]

Height

5 mm [±0,1 mm]

Weight

37.5 g

Magnetization Direction

↑ axial

Load capacity

12.69 kg / 124.48 N

Magnetic Induction

197.73 mT / 1977 Gs

Coating

[NiCuNi] Nickel

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Technical of the product - MPL 50x20x5 / N38 - lamellar magnet

Specification / characteristics - MPL 50x20x5 / N38 - lamellar magnet

properties

properties	values
Cat. no.	020473
GTIN/EAN	5906301811930
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	50 mm [±0,1 mm]
Width	20 mm [±0,1 mm]
Height	5 mm [±0,1 mm]
Weight	37.5 g
Magnetization Direction	↑ axial
Load capacity ~ ?	12.69 kg / 124.48 N
Magnetic Induction ~ ?	197.73 mT / 1977 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 50x20x5 / 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 analysis of the assembly - technical parameters

The following data represent the result of a mathematical analysis. Values are based on algorithms for the material Nd₂Fe₁₄B. Actual performance might slightly deviate from the simulation results. Use these calculations as a reference point during assembly planning.

Table 1: Static pull force (force vs distance) - characteristics
MPL 50x20x5 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	1977 Gs 197.7 mT	12.69 kg / 27.98 lbs 12690.0 g / 124.5 N	dangerous!
1 mm	1885 Gs 188.5 mT	11.53 kg / 25.42 lbs 11530.3 g / 113.1 N	dangerous!
2 mm	1772 Gs 177.2 mT	10.20 kg / 22.49 lbs 10199.9 g / 100.1 N	dangerous!
3 mm	1649 Gs 164.9 mT	8.83 kg / 19.47 lbs 8831.3 g / 86.6 N	warning
5 mm	1395 Gs 139.5 mT	6.32 kg / 13.93 lbs 6320.3 g / 62.0 N	warning
10 mm	870 Gs 87.0 mT	2.46 kg / 5.42 lbs 2459.4 g / 24.1 N	warning
15 mm	549 Gs 54.9 mT	0.98 kg / 2.15 lbs 976.9 g / 9.6 N	safe
20 mm	359 Gs 35.9 mT	0.42 kg / 0.92 lbs 418.9 g / 4.1 N	safe
30 mm	172 Gs 17.2 mT	0.10 kg / 0.21 lbs 95.7 g / 0.9 N	safe
50 mm	54 Gs 5.4 mT	0.01 kg / 0.02 lbs 9.5 g / 0.1 N	safe

Pulling power decreases sharply with every subsequent millimeter of distance. Note that every additional insulation layer (e.g., contamination, varnish, rust) significantly diminishes the holding power. Magnets operate strongest during direct contact; distance weakens the force. Notice how quickly the pull force plummet, when the magnet does not adhere tightly to the metal substrate. When designing the assembly, avoid additional spacers.

Table 2: Vertical force (vertical surface)
MPL 50x20x5 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	2.54 kg / 5.60 lbs 2538.0 g / 24.9 N
1 mm	Stal (~0.2)	2.31 kg / 5.08 lbs 2306.0 g / 22.6 N
2 mm	Stal (~0.2)	2.04 kg / 4.50 lbs 2040.0 g / 20.0 N
3 mm	Stal (~0.2)	1.77 kg / 3.89 lbs 1766.0 g / 17.3 N
5 mm	Stal (~0.2)	1.26 kg / 2.79 lbs 1264.0 g / 12.4 N
10 mm	Stal (~0.2)	0.49 kg / 1.08 lbs 492.0 g / 4.8 N
15 mm	Stal (~0.2)	0.20 kg / 0.43 lbs 196.0 g / 1.9 N
20 mm	Stal (~0.2)	0.08 kg / 0.19 lbs 84.0 g / 0.8 N
30 mm	Stal (~0.2)	0.02 kg / 0.04 lbs 20.0 g / 0.2 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 2.0 g / 0.0 N

The table below indicates the estimated shear load required to start the sliding of the magnet down along a vertical steel wall (considering standard friction). The holding force depends on the gap size between the magnet and the metal.

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MPL 50x20x5 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	3.81 kg / 8.39 lbs 3807.0 g / 37.3 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	2.54 kg / 5.60 lbs 2538.0 g / 24.9 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	1.27 kg / 2.80 lbs 1269.0 g / 12.4 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	6.35 kg / 13.99 lbs 6345.0 g / 62.2 N

When hanging a holder on a vertical wall (e.g., a fridge), it will only hold barely about 1/5 of its maximum pull force. Gravity as well as a weak degree of grip cause that holders move down faster than they pop off the substrate. Want to create a wall mount? Note that the shear force is significantly lower than the perpendicular breakaway force. On a painted metal, the magnet will give way down under a much lighter load. Utilizing a rubberized coating can drastically improve the result.

Table 4: Steel thickness (substrate influence) - sheet metal selection
MPL 50x20x5 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	5%	0.63 kg / 1.40 lbs 634.5 g / 6.2 N
1 mm	13%	1.59 kg / 3.50 lbs 1586.3 g / 15.6 N
2 mm	25%	3.17 kg / 6.99 lbs 3172.5 g / 31.1 N
3 mm	38%	4.76 kg / 10.49 lbs 4758.8 g / 46.7 N
5 mm	63%	7.93 kg / 17.49 lbs 7931.2 g / 77.8 N
10 mm	100%	12.69 kg / 27.98 lbs 12690.0 g / 124.5 N
11 mm	100%	12.69 kg / 27.98 lbs 12690.0 g / 124.5 N
12 mm	100%	12.69 kg / 27.98 lbs 12690.0 g / 124.5 N

A too thin steel is incapable of conduct the full magnetic flux, which wastes potential of the holder. Should you mount a strong magnet to a too thin substrate, the flux will penetrate right through and the attraction force will be weaker. To achieve 100% of this magnet's power, you require a sufficiently solid backing of metal. The saturation effect causes that on delicate walls (e.g., thin profiles), the product holds weaker. We recommend selecting the steel cross-section based on the following data.

Table 5: Working in heat (material behavior) - resistance threshold
MPL 50x20x5 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	12.69 kg / 27.98 lbs 12690.0 g / 124.5 N	OK
40 °C	-2.2%	12.41 kg / 27.36 lbs 12410.8 g / 121.8 N	OK
60 °C	-4.4%	12.13 kg / 26.75 lbs 12131.6 g / 119.0 N
80 °C	-6.6%	11.85 kg / 26.13 lbs 11852.5 g / 116.3 N
100 °C	-28.8%	9.04 kg / 19.92 lbs 9035.3 g / 88.6 N

Classic neodymiums change their properties power past the thermal threshold. Avoid high temperatures – excessive heat can permanently damage this magnet. With increasing heat, the neodymium's force momentarily lowers. Avoid using this product in hot environments higher than its working range. Ignoring the limit will cause permanent loss of magnetic properties.

*Engineering note: Thermal stability is determined by both grade, but also on the magnet's shape. Thin magnets (low permeance coefficient) may lose charge permanently at lower temperatures compared to rod magnets. Warning indicator in the table signals permanent field degradation for this specific geometry.

Table 6: Two magnets (repulsion) - forces in the system
MPL 50x20x5 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Strength (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	24.10 kg / 53.12 lbs 3 371 Gs	3.61 kg / 7.97 lbs 3614 g / 35.5 N	N/A
1 mm	23.06 kg / 50.84 lbs 3 868 Gs	3.46 kg / 7.63 lbs 3459 g / 33.9 N	20.75 kg / 45.75 lbs ~0 Gs
2 mm	21.89 kg / 48.27 lbs 3 769 Gs	3.28 kg / 7.24 lbs 3284 g / 32.2 N	19.71 kg / 43.44 lbs ~0 Gs
3 mm	20.65 kg / 45.53 lbs 3 661 Gs	3.10 kg / 6.83 lbs 3098 g / 30.4 N	18.59 kg / 40.98 lbs ~0 Gs
5 mm	18.07 kg / 39.83 lbs 3 424 Gs	2.71 kg / 5.97 lbs 2710 g / 26.6 N	16.26 kg / 35.84 lbs ~0 Gs
10 mm	12.00 kg / 26.46 lbs 2 790 Gs	1.80 kg / 3.97 lbs 1800 g / 17.7 N	10.80 kg / 23.81 lbs ~0 Gs
20 mm	4.67 kg / 10.30 lbs 1 741 Gs	0.70 kg / 1.54 lbs 701 g / 6.9 N	4.20 kg / 9.27 lbs ~0 Gs
50 mm	0.37 kg / 0.81 lbs 488 Gs	0.06 kg / 0.12 lbs 55 g / 0.5 N	0.33 kg / 0.73 lbs ~0 Gs
60 mm	0.18 kg / 0.40 lbs 343 Gs	0.03 kg / 0.06 lbs 27 g / 0.3 N	0.16 kg / 0.36 lbs ~0 Gs
70 mm	0.10 kg / 0.21 lbs 248 Gs	0.01 kg / 0.03 lbs 14 g / 0.1 N	0.09 kg / 0.19 lbs ~0 Gs
80 mm	0.05 kg / 0.12 lbs 184 Gs	0.01 kg / 0.02 lbs 8 g / 0.1 N	0.05 kg / 0.10 lbs ~0 Gs
90 mm	0.03 kg / 0.07 lbs 140 Gs	0.00 kg / 0.01 lbs 5 g / 0.0 N	0.03 kg / 0.06 lbs ~0 Gs
100 mm	0.02 kg / 0.04 lbs 108 Gs	0.00 kg / 0.01 lbs 3 g / 0.0 N	0.02 kg / 0.04 lbs ~0 Gs

Two strong neodymiums attract each other from a significantly greater distance than a magnet and steel setup. The connection of magnet-to-magnet creates a more powerful interaction and a larger range of performance. Designing a solid fastener? Utilize two neodymiums instead of one magnet and a steel. Remember that when connecting a pair of magnets, the collision energy is massive. The repulsion force is a bit weaker than the connection force, but still large.
*Flux density in repulsion mode reaches ~0 Gs in the exact middle between the magnets (resulting from vector opposition).
Important: Calculations demonstrate friction force of a pair of identical magnets (friction ~0.15 for Ni-Ni layer).

Table 7: Hazards (electronics) - precautionary measures
MPL 50x20x5 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	12.5 cm
Hearing aid	10 Gs (1.0 mT)	9.5 cm
Timepiece	20 Gs (2.0 mT)	7.5 cm
Phone / Smartphone	40 Gs (4.0 mT)	6.0 cm
Car key	50 Gs (5.0 mT)	5.5 cm
Payment card	400 Gs (40.0 mT)	2.0 cm
HDD hard drive	600 Gs (60.0 mT)	1.5 cm

Extremely neodym field poses a real danger to IT equipment and medical implants. These magnets generate a flux that prevents correct functioning of digital equipment. Notice: the invisible magnetic field acts through matter and housings. Exceptional care must be exercised by people with cochlear implants and insulin pumps. Also at risk are: automatic timepieces, remotes, speakers, and displays. Do not bring the product near payment cards, hard drives, or sensitive navigation tools.

Table 8: Dynamics (cracking risk) - warning
MPL 50x20x5 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	20.68 km/h (5.74 m/s)	0.62 J
30 mm	32.28 km/h (8.97 m/s)	1.51 J
50 mm	41.50 km/h (11.53 m/s)	2.49 J
100 mm	58.67 km/h (16.30 m/s)	4.98 J

Magnetic elements are very brittle – a collision with steel can result in shattering. Pay attention to connection velocity – a neodymium left loose turns into a projectile. Striking energy can trigger coating fragments or painful pinches to fingers. Always hold the magnet during installation 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 working with powerful specimens.

Table 9: Coating parameters (durability)
MPL 50x20x5 / 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. Note the thickness of the protective layer.

Table 10: Construction data (Flux)
MPL 50x20x5 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	20 792 Mx	207.9 µWb
P_c Coefficient	0.21	Low (Flat)

Total magnetic flux emitted by the magnet pole. Essential parameter when building generators as well as sensors. The P_c coefficient determines the working geometry.

Table 11: Underwater work (magnet fishing)
MPL 50x20x5 / N38

Environment	Effective steel pull	Effect
Air (land)	12.69 kg	Standard
Water (riverbed)	14.53 kg (+1.84 kg buoyancy gain)	+14.5%

Corrosion warning: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!

The magnetic field penetrates through water without any losses. Buoyancy helps in lifting finds.

1. Wall mount (shear)

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

2. Steel thickness impact

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

3. Temperature resistance

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

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.21

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 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.

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%

Ecology and recycling (GPSR)

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: 020473-2026

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Force in kg

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Model MPL 50x20x5 / N38 features a flat shape and professional pulling force, making it an ideal solution for building separators and machines. As a magnetic bar with high power (approx. 12.69 kg), this product is available off-the-shelf from our warehouse in Poland. 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 12.69 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 wind generators and material handling systems. Thanks to the flat surface and high force (approx. 12.69 kg), they are ideal as closers in furniture making and mounting elements in automation. Their rectangular shape facilitates precise gluing into milled sockets in wood or plastic.

For mounting flat magnets MPL 50x20x5 / N38, it is best to use two-component adhesives (e.g., UHU Endfest, Distal), which ensure a durable bond with metal or plastic. 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 50x20x5 / N38 model is magnetized axially (dimension 5 mm), which means that the N and S poles are located on its largest, flat surfaces. 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: 50 mm (length), 20 mm (width), and 5 mm (thickness). The key parameter here is the lifting capacity amounting to approximately 12.69 kg (force ~124.48 N), which, with such a compact shape, proves the high power of the material. The product meets the standards for N38 grade magnets.

Strengths as well as weaknesses of rare earth magnets.

Benefits

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

Their strength remains stable, and after around ten years it drops only by ~1% (theoretically),
Magnets very well defend themselves against demagnetization caused by foreign field sources,
A magnet with a metallic silver surface is more attractive,
Magnetic induction on the working part of the magnet remains exceptional,
Due to their durability and thermal resistance, neodymium magnets can operate (depending on the form) even at high temperatures reaching 230°C or more...
Possibility of custom machining and modifying to precise applications,
Significant place in innovative solutions – they are commonly used in mass storage devices, drive modules, diagnostic systems, and multitasking production systems.
Thanks to efficiency per cm³, small magnets offer high operating force, occupying minimum space,

Limitations

Disadvantages of NdFeB magnets:

Brittleness is one of their disadvantages. Upon intense impact they can break. We recommend keeping them in a steel housing, which not only secures them against impacts but also raises their durability
NdFeB magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of strength (a factor is the shape and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely resistant to heat
When exposed to humidity, magnets usually rust. To use them in conditions outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation and corrosion.
Due to limitations in creating threads and complicated shapes in magnets, we propose using a housing - magnetic mount.
Possible danger resulting from small fragments of magnets are risky, when accidentally swallowed, which becomes key in the context of child health protection. It is also worth noting that small components of these devices can disrupt the diagnostic process 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

Highest magnetic holding force – what it depends on?

The load parameter shown represents the limit force, measured under ideal test conditions, specifically:

on a base made of mild steel, optimally conducting the magnetic field
with a thickness no less than 10 mm
with an ground touching surface
without the slightest clearance between the magnet and steel
during pulling in a direction vertical to the mounting surface
in stable room temperature

Magnet lifting force in use – key factors

Please note that the magnet holding will differ depending on elements below, in order of importance:

Space between surfaces – every millimeter of separation (caused e.g. by veneer or dirt) significantly weakens the pulling force, often by half at just 0.5 mm.
Pull-off angle – note that the magnet holds strongest perpendicularly. Under shear forces, the capacity drops significantly, often to levels of 20-30% of the nominal value.
Wall thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field penetrates through instead of converting into lifting capacity.
Material composition – different alloys reacts the same. Alloy additives weaken the interaction with the magnet.
Base smoothness – the more even the surface, the larger the contact zone and higher the lifting capacity. Roughness creates an air distance.
Operating temperature – NdFeB sinters have a sensitivity to temperature. When it is hot they are weaker, and at low temperatures they can be stronger (up to a certain limit).

Lifting capacity testing was performed on a smooth plate of optimal thickness, under a perpendicular pulling force, in contrast under attempts to slide the magnet the load capacity is reduced by as much as 5 times. In addition, even a small distance between the magnet’s surface and the plate decreases the load capacity.

Safe handling of neodymium magnets

Precision electronics

A powerful magnetic field negatively affects the operation of magnetometers in phones and navigation systems. Keep magnets close to a smartphone to prevent damaging the sensors.

Permanent damage

Standard neodymium magnets (N-type) lose magnetization when the temperature surpasses 80°C. This process is irreversible.

Safe distance

Very strong magnetic fields can corrupt files on credit cards, HDDs, and storage devices. Stay away of min. 10 cm.

Beware of splinters

Despite the nickel coating, neodymium is brittle and cannot withstand shocks. Avoid impacts, as the magnet may shatter into hazardous fragments.

Serious injuries

Protect your hands. Two large magnets will join immediately with a force of massive weight, crushing anything in their path. Exercise extreme caution!

Do not drill into magnets

Fire hazard: Rare earth powder is explosive. Do not process magnets in home conditions as this may cause fire.

Do not give to children

Adult use only. Small elements pose a choking risk, leading to serious injuries. Keep away from children and animals.

Nickel allergy

Some people suffer from a contact allergy to Ni, which is the standard coating for neodymium magnets. Prolonged contact might lead to dermatitis. We strongly advise wear protective gloves.

Safe operation

Handle with care. Neodymium magnets act from a long distance and snap with massive power, often quicker than you can move away.

Medical implants

Patients with a heart stimulator must maintain an safe separation from magnets. The magnetic field can interfere with the functioning of the implant.

Safety First! Looking for details? Check our post: Are neodymium magnets dangerous?

MPL 50x20x5 / N38 - lamellar magnet

Technical of the product - MPL 50x20x5 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering analysis of the assembly - technical parameters

Table 1: Static pull force (force vs distance) - characteristics MPL 50x20x5 / N38

Table 2: Vertical force (vertical surface) MPL 50x20x5 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces MPL 50x20x5 / N38

Table 4: Steel thickness (substrate influence) - sheet metal selection MPL 50x20x5 / N38

Table 5: Working in heat (material behavior) - resistance threshold MPL 50x20x5 / N38

Table 6: Two magnets (repulsion) - forces in the system MPL 50x20x5 / N38

Table 7: Hazards (electronics) - precautionary measures MPL 50x20x5 / N38

Table 8: Dynamics (cracking risk) - warning MPL 50x20x5 / N38

Table 9: Coating parameters (durability) MPL 50x20x5 / N38

Table 10: Construction data (Flux) MPL 50x20x5 / N38

Table 11: Underwater work (magnet fishing) MPL 50x20x5 / N38

1. Wall mount (shear)

2. Steel thickness impact

3. Temperature resistance

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

Chemical composition

Ecology and recycling (GPSR)

Pulling force

Magnetic Field

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Strengths as well as weaknesses of rare earth magnets.

Benefits

Limitations

Lifting parameters

Highest magnetic holding force – what it depends on?

Magnet lifting force in use – key factors

Safe handling of neodymium magnets

Precision electronics

Permanent damage

Safe distance

Beware of splinters

Serious injuries

Do not drill into magnets

Do not give to children

Nickel allergy

Safe operation

Medical implants

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs distance) - characteristics
MPL 50x20x5 / N38

Table 2: Vertical force (vertical surface)
MPL 50x20x5 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MPL 50x20x5 / N38

Table 4: Steel thickness (substrate influence) - sheet metal selection
MPL 50x20x5 / N38

Table 5: Working in heat (material behavior) - resistance threshold
MPL 50x20x5 / N38

Table 6: Two magnets (repulsion) - forces in the system
MPL 50x20x5 / N38

Table 7: Hazards (electronics) - precautionary measures
MPL 50x20x5 / N38

Table 8: Dynamics (cracking risk) - warning
MPL 50x20x5 / N38

Table 9: Coating parameters (durability)
MPL 50x20x5 / N38

Table 10: Construction data (Flux)
MPL 50x20x5 / N38

Table 11: Underwater work (magnet fishing)
MPL 50x20x5 / N38