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MPL 40x40x15 / 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 020161

GTIN/EAN: 5906301811671

5.00

length

40 mm [±0,1 mm]

Width

40 mm [±0,1 mm]

Height

15 mm [±0,1 mm]

Weight

180 g

Magnetization Direction

↑ axial

Load capacity

46.94 kg / 460.51 N

Magnetic Induction

345.80 mT / 3458 Gs

Coating

[NiCuNi] Nickel

view parameters »

55.37 ZŁ with VAT / pcs + price for transport

45.02 ZŁ net + 23% VAT / pcs

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Technical parameters - MPL 40x40x15 / N38 - lamellar magnet

Specification / characteristics - MPL 40x40x15 / N38 - lamellar magnet

properties

properties	values
Cat. no.	020161
GTIN/EAN	5906301811671
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	40 mm [±0,1 mm]
Height	15 mm [±0,1 mm]
Weight	180 g
Magnetization Direction	↑ axial
Load capacity ~ ?	46.94 kg / 460.51 N
Magnetic Induction ~ ?	345.80 mT / 3458 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 40x40x15 / 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 product - data

These information constitute the outcome of a physical analysis. Results were calculated on models for the class Nd₂Fe₁₄B. Actual conditions might slightly differ from theoretical values. Please consider these data as a preliminary roadmap when designing systems.

Table 1: Static pull force (force vs gap) - characteristics
MPL 40x40x15 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	3458 Gs 345.8 mT	46.94 kg / 103.48 lbs 46940.0 g / 460.5 N	dangerous!
1 mm	3333 Gs 333.3 mT	43.62 kg / 96.16 lbs 43616.1 g / 427.9 N	dangerous!
2 mm	3199 Gs 319.9 mT	40.19 kg / 88.60 lbs 40189.1 g / 394.3 N	dangerous!
3 mm	3060 Gs 306.0 mT	36.77 kg / 81.06 lbs 36767.3 g / 360.7 N	dangerous!
5 mm	2773 Gs 277.3 mT	30.19 kg / 66.55 lbs 30187.9 g / 296.1 N	dangerous!
10 mm	2078 Gs 207.8 mT	16.95 kg / 37.37 lbs 16950.2 g / 166.3 N	dangerous!
15 mm	1507 Gs 150.7 mT	8.91 kg / 19.65 lbs 8913.7 g / 87.4 N	strong
20 mm	1085 Gs 108.5 mT	4.62 kg / 10.19 lbs 4622.3 g / 45.3 N	strong
30 mm	580 Gs 58.0 mT	1.32 kg / 2.92 lbs 1322.9 g / 13.0 N	low risk
50 mm	204 Gs 20.4 mT	0.16 kg / 0.36 lbs 164.0 g / 1.6 N	low risk

Grip strength weakens drastically per each millimeter of spacing. Keep in mind that even a very thin break (e.g., contamination, paint, dust) noticeably diminishes the holding power. Neodymiums operate optimally at the point of direct contact; distance drastically cuts the force. Analyze how rapidly the load capacity drop, when the magnet does not adhere directly to the metal substrate. When planning the arrangement, eliminate unnecessary gaps.

Table 2: Vertical load (vertical surface)
MPL 40x40x15 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	9.39 kg / 20.70 lbs 9388.0 g / 92.1 N
1 mm	Stal (~0.2)	8.72 kg / 19.23 lbs 8724.0 g / 85.6 N
2 mm	Stal (~0.2)	8.04 kg / 17.72 lbs 8038.0 g / 78.9 N
3 mm	Stal (~0.2)	7.35 kg / 16.21 lbs 7354.0 g / 72.1 N
5 mm	Stal (~0.2)	6.04 kg / 13.31 lbs 6038.0 g / 59.2 N
10 mm	Stal (~0.2)	3.39 kg / 7.47 lbs 3390.0 g / 33.3 N
15 mm	Stal (~0.2)	1.78 kg / 3.93 lbs 1782.0 g / 17.5 N
20 mm	Stal (~0.2)	0.92 kg / 2.04 lbs 924.0 g / 9.1 N
30 mm	Stal (~0.2)	0.26 kg / 0.58 lbs 264.0 g / 2.6 N
50 mm	Stal (~0.2)	0.03 kg / 0.07 lbs 32.0 g / 0.3 N

The following data indicates the theoretical force necessary to cause the slippage of the magnet vertically against a upright steel plate (considering standard friction coefficient). This value depends on the air gap between the magnet and the metal.

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MPL 40x40x15 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	14.08 kg / 31.05 lbs 14082.0 g / 138.1 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	9.39 kg / 20.70 lbs 9388.0 g / 92.1 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	4.69 kg / 10.35 lbs 4694.0 g / 46.0 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	23.47 kg / 51.74 lbs 23470.0 g / 230.2 N

When placing a element on a vertical plane (e.g., a board), it will maintain only about 20%-30% of its maximum pull force. Gravity and a low friction coefficient influence the fact that products slide down faster than they detach. Planning a wall mount? Remember that the sliding force is much weaker than the maximum static pull force. On a smooth steel, the element will slip down under a much lighter weight. Using a rubber pad can effectively raise the stability.

Table 4: Material efficiency (saturation) - sheet metal selection
MPL 40x40x15 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	5%	2.35 kg / 5.17 lbs 2347.0 g / 23.0 N
1 mm	13%	5.87 kg / 12.94 lbs 5867.5 g / 57.6 N
2 mm	25%	11.74 kg / 25.87 lbs 11735.0 g / 115.1 N
3 mm	38%	17.60 kg / 38.81 lbs 17602.5 g / 172.7 N
5 mm	63%	29.34 kg / 64.68 lbs 29337.5 g / 287.8 N
10 mm	100%	46.94 kg / 103.48 lbs 46940.0 g / 460.5 N
11 mm	100%	46.94 kg / 103.48 lbs 46940.0 g / 460.5 N
12 mm	100%	46.94 kg / 103.48 lbs 46940.0 g / 460.5 N

A thin metal plate is not enough to conduct the full magnetic flux, which wastes potential of the holder. If you attach a powerful product to a thin surface, the field will pass right through and the pull force will drop sharply. To utilize the maximum of this magnet's potential, you need a suitably thick piece of metal. The saturation phenomenon means that on sheet metal structures (e.g., thin profiles), the holder works worse. We suggest choosing the steel dimension according to the table below.

Table 5: Thermal resistance (stability) - thermal limit
MPL 40x40x15 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	46.94 kg / 103.48 lbs 46940.0 g / 460.5 N	OK
40 °C	-2.2%	45.91 kg / 101.21 lbs 45907.3 g / 450.4 N	OK
60 °C	-4.4%	44.87 kg / 98.93 lbs 44874.6 g / 440.2 N
80 °C	-6.6%	43.84 kg / 96.65 lbs 43842.0 g / 430.1 N
100 °C	-28.8%	33.42 kg / 73.68 lbs 33421.3 g / 327.9 N

Ordinary NdFeB products lose strength above the temperature limit. Avoid high temperatures – high temperature can irreversibly damage this product. With every degree above norm, the magnet's power momentarily lowers. Refrain from using this product close to ovens higher than its operating temperature limit. Ignoring the limit will result in destruction of magnetism.

*Technical advisory: Thermal stability is determined by both grade, as well as the dimension ratios. Flat magnets (low Pc) risk losing magnetic properties sooner than taller cylinders. The danger warning in the table signals permanent field degradation for this particular item.

Table 6: Two magnets (attraction) - field collision
MPL 40x40x15 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	117.92 kg / 259.97 lbs 4 963 Gs	17.69 kg / 39.00 lbs 17688 g / 173.5 N	N/A
1 mm	113.82 kg / 250.94 lbs 6 794 Gs	17.07 kg / 37.64 lbs 17074 g / 167.5 N	102.44 kg / 225.84 lbs ~0 Gs
2 mm	109.57 kg / 241.57 lbs 6 666 Gs	16.44 kg / 36.23 lbs 16436 g / 161.2 N	98.62 kg / 217.41 lbs ~0 Gs
3 mm	105.28 kg / 232.10 lbs 6 534 Gs	15.79 kg / 34.81 lbs 15792 g / 154.9 N	94.75 kg / 208.89 lbs ~0 Gs
5 mm	96.65 kg / 213.08 lbs 6 261 Gs	14.50 kg / 31.96 lbs 14498 g / 142.2 N	86.99 kg / 191.77 lbs ~0 Gs
10 mm	75.84 kg / 167.19 lbs 5 546 Gs	11.38 kg / 25.08 lbs 11376 g / 111.6 N	68.25 kg / 150.47 lbs ~0 Gs
20 mm	42.58 kg / 93.88 lbs 4 155 Gs	6.39 kg / 14.08 lbs 6387 g / 62.7 N	38.32 kg / 84.49 lbs ~0 Gs
50 mm	6.12 kg / 13.49 lbs 1 575 Gs	0.92 kg / 2.02 lbs 918 g / 9.0 N	5.51 kg / 12.14 lbs ~0 Gs
60 mm	3.32 kg / 7.33 lbs 1 161 Gs	0.50 kg / 1.10 lbs 499 g / 4.9 N	2.99 kg / 6.59 lbs ~0 Gs
70 mm	1.87 kg / 4.12 lbs 871 Gs	0.28 kg / 0.62 lbs 281 g / 2.8 N	1.68 kg / 3.71 lbs ~0 Gs
80 mm	1.09 kg / 2.41 lbs 665 Gs	0.16 kg / 0.36 lbs 164 g / 1.6 N	0.98 kg / 2.17 lbs ~0 Gs
90 mm	0.66 kg / 1.46 lbs 517 Gs	0.10 kg / 0.22 lbs 99 g / 1.0 N	0.59 kg / 1.31 lbs ~0 Gs
100 mm	0.41 kg / 0.91 lbs 409 Gs	0.06 kg / 0.14 lbs 62 g / 0.6 N	0.37 kg / 0.82 lbs ~0 Gs

Two magnets interact from a much further distance than a magnet and steel setup. The setup of magnet-to-magnet generates a stronger field and a further horizon of operation. Designing a powerful holder? Use a pair of magnets instead of one magnet and a striker plate. Exercise caution that when attracting two neodymiums, the pinch force is extreme. The repulsion force is slightly lower than the connection force, but still impressive.
*The magnetic induction between like poles drops to ~0 Gs at the geometric center between the magnets (resulting from vector opposition).
Note: Calculations demonstrate shear force of a pair of identical neodymium magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Protective zones (electronics) - precautionary measures
MPL 40x40x15 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	20.5 cm
Hearing aid	10 Gs (1.0 mT)	16.0 cm
Mechanical watch	20 Gs (2.0 mT)	12.5 cm
Mobile device	40 Gs (4.0 mT)	10.0 cm
Remote	50 Gs (5.0 mT)	9.0 cm
Payment card	400 Gs (40.0 mT)	4.0 cm
HDD hard drive	600 Gs (60.0 mT)	3.0 cm

Extremely neodym field poses a large risk to electronics as well as medical implants. These magnets generate a flux that prevents correct functioning of sensitive medical devices. Notice: the unseen radiation acts through matter and housings. Increased vigilance must be exercised by people with hearing aids and insulin pumps. Influence will be felt by: mechanical watches, remotes, speakers, and screens. Do not bring the product near payment cards, hard drives, or sensitive navigation tools.

Table 8: Dynamics (cracking risk) - warning
MPL 40x40x15 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	19.62 km/h (5.45 m/s)	2.67 J
30 mm	28.70 km/h (7.97 m/s)	5.72 J
50 mm	36.50 km/h (10.14 m/s)	9.25 J
100 mm	51.50 km/h (14.31 m/s)	18.42 J

Neodymium magnets are prone to chipping – a strong collision with metal causes immediate chipping. Control the attraction moment – a magnet released freely speeds with massive force. Impact energy can destroy the magnet or injury to fingers. Be sure to control the product during mounting so it doesn't hit with great force against the steel surface. A contact at a velocity of dozens of km/h ends with a crack of the neodymium. Use safety goggles when handling with large magnets.

Table 9: Surface protection spec
MPL 40x40x15 / 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. Note the thickness of the protective layer.

Table 10: Construction data (P_c)
MPL 40x40x15 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	58 107 Mx	581.1 µWb
P_c Coefficient	0.43	Low (Flat)

Flux value passing through the pole surface. Essential parameter when building generators as well as sensors. The P_c coefficient defines the magnet's operating point.

Table 11: Submerged application
MPL 40x40x15 / N38

Environment	Effective steel pull	Effect
Air (land)	46.94 kg	Standard
Water (riverbed)	53.75 kg (+6.81 kg buoyancy gain)	+14.5%

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

Contrary to myths, water does not block the magnetic field. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Sliding resistance

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

2. Steel thickness impact

*Thin metal sheet (e.g. computer case) drastically limits the holding force.

3. Power loss vs temp

*For N38 material, the critical limit is 80°C.

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.43

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.

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%

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: 020161-2026

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This product is an extremely strong plate magnet made of NdFeB material, which, with dimensions of 40x40x15 mm and a weight of 180 g, guarantees premium class connection. As a magnetic bar with high power (approx. 46.94 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 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 40x40x15 / N38 model, firmly slide one magnet over the edge of the other until the attraction force decreases. We recommend care, because after separation, the magnets may want to violently snap back together, which threatens pinching the skin. 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. They work great as invisible mounts under tiles, wood, or glass. Their rectangular shape facilitates precise gluing into milled sockets in wood or plastic.

For mounting flat magnets MPL 40x40x15 / N38, it is best to use strong epoxy glues (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. Remember to roughen and wash the magnet surface before gluing, which significantly increases the adhesion of the glue to the nickel coating.

Standardly, the MPL 40x40x15 / N38 model is magnetized through the thickness (dimension 15 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 (40x40 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), 40 mm (width), and 15 mm (thickness). The key parameter here is the lifting capacity amounting to approximately 46.94 kg (force ~460.51 N), which, with such a flat shape, proves the high grade of the material. The protective [NiCuNi] coating secures the magnet against corrosion.

Advantages as well as disadvantages of Nd₂Fe₁₄B magnets.

Strengths

Besides their tremendous pulling force, neodymium magnets offer the following advantages:

Their strength is maintained, and after approximately 10 years it drops only by ~1% (theoretically),
They do not lose their magnetic properties even under external field action,
In other words, due to the metallic layer of gold, the element looks attractive,
The surface of neodymium magnets generates a unique magnetic field – this is a key feature,
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 individual machining as well as adjusting to precise conditions,
Versatile presence in advanced technology sectors – they are used in data components, drive modules, advanced medical instruments, also modern systems.
Thanks to efficiency per cm³, small magnets offer high operating force, occupying minimum space,

Disadvantages

Characteristics of disadvantages of neodymium magnets: tips and applications.

At strong impacts they can crack, therefore we advise placing them in strong housings. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
Neodymium magnets lose their strength 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
Due to limitations in producing nuts and complicated forms in magnets, we recommend using cover - magnetic mount.
Potential hazard to health – tiny shards of magnets pose a threat, when accidentally swallowed, which gains importance in the context of child safety. It is also worth noting that small elements of these products can complicate diagnosis medical after entering the body.
Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Pull force analysis

Maximum holding power of the magnet – what it depends on?

Breakaway force was determined for ideal contact conditions, assuming:

with the application of a sheet made of low-carbon steel, guaranteeing full magnetic saturation
possessing a massiveness of min. 10 mm to avoid saturation
with a plane cleaned and smooth
with total lack of distance (no impurities)
during detachment in a direction vertical to the mounting surface
in neutral thermal conditions

Magnet lifting force in use – key factors

In real-world applications, the actual lifting capacity is determined by a number of factors, presented from most significant:

Air gap (between the magnet and the plate), because even a tiny clearance (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 – highest force is reached only during perpendicular pulling. The resistance to sliding of the magnet along the surface is usually many times smaller (approx. 1/5 of the lifting capacity).
Substrate thickness – for full efficiency, the steel must be sufficiently thick. Paper-thin metal restricts the attraction force (the magnet "punches through" it).
Plate material – mild steel attracts best. Alloy admixtures decrease magnetic properties and lifting capacity.
Smoothness – ideal contact is obtained only on polished steel. Rough texture create air cushions, reducing force.
Thermal factor – hot environment weakens magnetic field. Too high temperature can permanently damage the magnet.

Holding force was measured on the plate surface of 20 mm thickness, when a perpendicular force was applied, however under parallel forces the lifting capacity is smaller. In addition, even a slight gap between the magnet and the plate reduces the load capacity.

Safe handling of neodymium magnets

Mechanical processing

Powder generated during grinding of magnets is self-igniting. Avoid drilling into magnets unless you are an expert.

Immense force

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

Impact on smartphones

A strong magnetic field negatively affects the operation of magnetometers in smartphones and GPS navigation. Do not bring magnets close to a device to prevent breaking the sensors.

Beware of splinters

Neodymium magnets are sintered ceramics, meaning they are fragile like glass. Impact of two magnets will cause them shattering into small pieces.

Life threat

Warning for patients: Strong magnetic fields affect electronics. Keep at least 30 cm distance or request help to work with the magnets.

Safe distance

Powerful magnetic fields can destroy records on payment cards, HDDs, and storage devices. Stay away of min. 10 cm.

Allergy Warning

Medical facts indicate that the nickel plating (standard magnet coating) is a potent allergen. If your skin reacts to metals, prevent touching magnets with bare hands or select encased magnets.

Heat warning

Regular neodymium magnets (N-type) lose power when the temperature exceeds 80°C. The loss of strength is permanent.

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.

Do not give to children

Absolutely store magnets away from children. Choking hazard is high, and the consequences of magnets clamping inside the body are fatal.

Danger! Need more info? Read our article: Are neodymium magnets dangerous?

MPL 40x40x15 / N38 - lamellar magnet

Technical parameters - MPL 40x40x15 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering modeling of the product - data

Table 1: Static pull force (force vs gap) - characteristics MPL 40x40x15 / N38

Table 2: Vertical load (vertical surface) MPL 40x40x15 / N38

Table 3: Wall mounting (shearing) - behavior on slippery surfaces MPL 40x40x15 / N38

Table 4: Material efficiency (saturation) - sheet metal selection MPL 40x40x15 / N38

Table 5: Thermal resistance (stability) - thermal limit MPL 40x40x15 / N38

Table 6: Two magnets (attraction) - field collision MPL 40x40x15 / N38

Table 7: Protective zones (electronics) - precautionary measures MPL 40x40x15 / N38

Table 8: Dynamics (cracking risk) - warning MPL 40x40x15 / N38

Table 9: Surface protection spec MPL 40x40x15 / N38

Table 10: Construction data (Pc) MPL 40x40x15 / N38

Table 11: Submerged application MPL 40x40x15 / N38

1. Sliding resistance

2. Steel thickness impact

3. Power loss vs temp

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

Chemical composition

Sustainability

Magnet pull force

Field Strength

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Advantages as well as disadvantages of Nd2Fe14B magnets.

Strengths

Disadvantages

Pull force analysis

Maximum holding power of the magnet – what it depends on?

Magnet lifting force in use – key factors

Safe handling of neodymium magnets

Mechanical processing

Immense force

Impact on smartphones

Beware of splinters

Life threat

Safe distance

Allergy Warning

Heat warning

Crushing risk

Do not give to children

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs gap) - characteristics
MPL 40x40x15 / N38

Table 2: Vertical load (vertical surface)
MPL 40x40x15 / N38

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MPL 40x40x15 / N38

Table 4: Material efficiency (saturation) - sheet metal selection
MPL 40x40x15 / N38

Table 5: Thermal resistance (stability) - thermal limit
MPL 40x40x15 / N38

Table 6: Two magnets (attraction) - field collision
MPL 40x40x15 / N38

Table 7: Protective zones (electronics) - precautionary measures
MPL 40x40x15 / N38

Table 8: Dynamics (cracking risk) - warning
MPL 40x40x15 / N38

Table 9: Surface protection spec
MPL 40x40x15 / N38

Table 10: Construction data (P_c)
MPL 40x40x15 / N38

Table 11: Submerged application
MPL 40x40x15 / N38

Advantages as well as disadvantages of Nd₂Fe₁₄B magnets.