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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 of the product - 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

Technical analysis of the assembly - report

The following values constitute the outcome of a mathematical analysis. Results were calculated on algorithms for the material Nd₂Fe₁₄B. Real-world performance may deviate from the simulation results. Please consider these calculations as a preliminary roadmap when designing systems.

Table 1: Static force (force vs gap) - interaction chart
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	crushing
1 mm	3333 Gs 333.3 mT	43.62 kg / 96.16 LBS 43616.1 g / 427.9 N	crushing
2 mm	3199 Gs 319.9 mT	40.19 kg / 88.60 LBS 40189.1 g / 394.3 N	crushing
3 mm	3060 Gs 306.0 mT	36.77 kg / 81.06 LBS 36767.3 g / 360.7 N	crushing
5 mm	2773 Gs 277.3 mT	30.19 kg / 66.55 LBS 30187.9 g / 296.1 N	crushing
10 mm	2078 Gs 207.8 mT	16.95 kg / 37.37 LBS 16950.2 g / 166.3 N	crushing
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

Magnetic force decreases significantly with every mm of spacing. Note that even a microscopic distance (e.g., dirt, varnish, veneer) strongly diminishes the holding power. Magnets operate optimally during direct contact; distance drastically cuts the power. Analyze how quickly the load capacity fall, when the magnet does not touch flatly to the steel surface. When calculating the mounting, eliminate unnecessary gaps.

Table 2: Shear capacity (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 table below indicates the theoretical shear load necessary to start the slippage of the magnet down on a upright steel plate (assuming standard friction). The holding force is a function of the distance between the magnet and the surface.

Table 3: Vertical assembly (sliding) - 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 mounting a magnet on a vertical surface (e.g., a board), it will maintain just approx. 20%-30% of nominal attraction strength. Gravitational force as well as a low friction coefficient cause that holders move down easier than they pop off the substrate. Planning a vertical fastening? Consider that the shear force is significantly lower than the maximum static pull force. On a painted metal, the holder will give way down under a much lighter load. Using a rubber pad can effectively raise the stability.

Table 4: Material efficiency (saturation) - power losses
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 sheet cannot take in the full magnetic flux, which wastes potential of the holder. Should you attach a powerful product to a thin surface, the flux will penetrate right through and the pull force will drop sharply. To utilize full efficiency of this magnet's power, you need a suitably thick element of steel. The material oversaturation means that on thin elements (e.g., appliance housings), the holder works worse. We suggest choosing the steel thickness according to the table below.

Table 5: Thermal resistance (stability) - power drop
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

Classic neodymiums change their properties power above the temperature limit. Watch out for overheating – high temperature can irreversibly destroy this product. With every degree above norm, the magnet's capacity temporarily lowers. Do not use this magnet in hot environments higher than its working range. Exceeding the critical threshold will lead to irreversible degradation of magnetism.

*Technical advisory: Thermal stability depends not only on the material grade, as well as the dimension ratios. Thin magnets (pancake types) are more susceptible to demagnetization at lower temperatures than taller cylinders. Warning indicator in the table signals permanent field degradation for this particular item.

Table 6: Magnet-Magnet interaction (repulsion) - field range
MPL 40x40x15 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear 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 magnetic products interact from a much further distance than a magnet and sheet setup. The connection of magnet-to-magnet generates a stronger field and a larger range of action. Designing a strong closure? Utilize two neodymiums instead of a neodymium and a striker plate. Exercise caution that when connecting a pair of magnets, the impact force is huge. The levitation is a bit weaker than the connection force, but still large.
*Field value in repulsion mode reaches ~0 Gs at the geometric center between the magnets (caused by magnetic field nullification).
Note: Figures refer to shear force of a pair of same magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Safety (HSE) (implants) - warnings
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
Car key	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 serious hazard to electronics as well as medical implants. These NdFeB products produce a flux that destroys function of digital equipment. Notice: the invisible magnetic field passes through tissues and plastic. Exceptional care must be exercised by people with hearing aids and insulin pumps. Also at risk are: automatic timepieces, remotes, speakers, and displays. Do not place the magnet near cards, HDD media, or sensitive navigation tools.

Table 8: Collisions (kinetic energy) - 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 violent impact against metal risks their cracking. Control the attraction moment – a magnet released freely speeds with massive force. Impact energy can destroy the magnet or painful pinches to skin. Always hold the magnet during installation so it doesn't hit violently against the metal. A contact at a velocity of dozens of km/h ends with a crack of the magnet. Wear safety glasses 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)

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 40x40x15 / N38

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

Total magnetic flux emitted by the magnet pole. Key data in coil applications and motors. The P_c coefficient determines the working geometry.

Table 11: Physics of underwater searching
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. However, remember the water resistance when pulling the rope quickly.

1. Vertical hold

*Warning: On a vertical wall, the magnet holds just ~20% of its perpendicular strength.

2. Efficiency vs thickness

*Thin metal sheet (e.g. 0.5mm PC case) severely weakens the holding force.

3. Heat tolerance

*For N38 grade, 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

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%

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

Measurement Calculator

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lbs

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Gauss (Gs)

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Model MPL 40x40x15 / N38 features a low profile and professional pulling force, making it an ideal solution for building separators and machines. This magnetic block with a force of 460.51 N is ready for shipment in 24h, allowing for rapid realization of your project. Additionally, its Ni-Cu-Ni coating protects it against corrosion in standard operating conditions, giving it an aesthetic appearance.

Separating strong flat magnets requires a technique based on sliding (moving one relative to the other), rather than forceful pulling apart. Watch your fingers! Magnets with a force of 46.94 kg can pinch very hard and cause hematomas. Using a screwdriver risks destroying the coating and permanently cracking the magnet.

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. Double-sided tape cushions vibrations, which is an advantage when mounting in moving elements. Avoid chemically aggressive glues or hot glue, which can demagnetize neodymium (above 80°C).

Standardly, the MPL 40x40x15 / N38 model is magnetized axially (dimension 15 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. Such a pole arrangement ensures maximum holding capacity when pressing against the sheet, creating a closed magnetic circuit.

This model is characterized by dimensions 40x40x15 mm, which, at a weight of 180 g, makes it an element with high energy density. 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 power of the material. The protective [NiCuNi] coating secures the magnet against corrosion.

Pros and cons of Nd₂Fe₁₄B magnets.

Benefits

Besides their remarkable magnetic power, neodymium magnets offer the following advantages:

They retain magnetic properties for almost 10 years – the loss is just ~1% (according to analyses),
They do not lose their magnetic properties even under strong external field,
A magnet with a shiny nickel surface has better aesthetics,
Magnets are characterized by extremely high magnetic induction on the outer side,
Thanks to resistance to high temperature, they are able to function (depending on the form) even at temperatures up to 230°C and higher...
Possibility of accurate forming as well as optimizing to complex needs,
Wide application in high-tech industry – they are utilized in HDD drives, electric drive systems, medical equipment, and other advanced devices.
Thanks to concentrated force, small magnets offer high operating force, in miniature format,

Cons

Problematic aspects of neodymium magnets and ways of using them

At very strong impacts they can break, therefore we recommend placing them in steel cases. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
We warn that neodymium magnets can lose their strength at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 230°C.
Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material stable to moisture, in case of application outdoors
Due to limitations in realizing threads and complex forms in magnets, we propose using casing - magnetic mechanism.
Health risk related to microscopic parts of magnets can be dangerous, if swallowed, which is particularly important in the context of child health protection. Furthermore, tiny parts of these magnets can complicate diagnosis medical in case of swallowing.
High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which increases costs of application in large quantities

Holding force characteristics

Breakaway strength of the magnet in ideal conditions – what affects it?

The declared magnet strength concerns the limit force, measured under optimal environment, namely:

using a sheet made of mild steel, functioning as a magnetic yoke
with a cross-section of at least 10 mm
characterized by lack of roughness
under conditions of ideal adhesion (surface-to-surface)
for force applied at a right angle (pull-off, not shear)
in temp. approx. 20°C

Lifting capacity in real conditions – factors

Real force is affected by specific conditions, including (from most important):

Clearance – the presence of any layer (paint, tape, air) acts as an insulator, which lowers capacity steeply (even by 50% at 0.5 mm).
Force direction – note that the magnet has greatest strength perpendicularly. Under sliding down, the holding force drops significantly, often to levels of 20-30% of the nominal value.
Steel thickness – too thin sheet causes magnetic saturation, causing part of the flux to be lost into the air.
Chemical composition of the base – low-carbon steel gives the best results. Higher carbon content decrease magnetic permeability and lifting capacity.
Smoothness – full contact is possible only on smooth steel. Any scratches and bumps reduce the real contact area, reducing force.
Thermal conditions – neodymium magnets have a negative temperature coefficient. When it is hot they are weaker, and in frost gain strength (up to a certain limit).

Lifting capacity testing was performed on plates with a smooth surface of suitable thickness, under perpendicular forces, however under parallel forces 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 holding force.

Safety rules for work with neodymium magnets

Danger to pacemakers

Life threat: Neodymium magnets can deactivate pacemakers and defibrillators. Stay away if you have medical devices.

Warning for allergy sufferers

Warning for allergy sufferers: The nickel-copper-nickel coating consists of nickel. If an allergic reaction occurs, cease working with magnets and use protective gear.

No play value

NdFeB magnets are not suitable for play. Accidental ingestion of a few magnets can lead to them connecting inside the digestive tract, which constitutes a severe health hazard and necessitates immediate surgery.

Conscious usage

Exercise caution. Rare earth magnets attract from a long distance and connect with massive power, often quicker than you can move away.

Bone fractures

Pinching hazard: The pulling power is so immense that it can result in blood blisters, crushing, and even bone fractures. Protective gloves are recommended.

Mechanical processing

Dust produced during grinding of magnets is combustible. Do not drill into magnets unless you are an expert.

Beware of splinters

Watch out for shards. Magnets can fracture upon uncontrolled impact, launching shards into the air. Eye protection is mandatory.

Keep away from computers

Intense magnetic fields can corrupt files on credit cards, HDDs, and other magnetic media. Stay away of min. 10 cm.

Do not overheat magnets

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

Precision electronics

GPS units and smartphones are extremely susceptible to magnetic fields. Close proximity with a powerful NdFeB magnet can ruin the internal compass in your phone.

Danger! Looking for details? Read our article: Why are neodymium magnets dangerous?

MPL 40x40x15 / N38 - lamellar magnet

Technical of the product - MPL 40x40x15 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical analysis of the assembly - report

Table 1: Static force (force vs gap) - interaction chart MPL 40x40x15 / N38

Table 2: Shear capacity (vertical surface) MPL 40x40x15 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces MPL 40x40x15 / N38

Table 4: Material efficiency (saturation) - power losses MPL 40x40x15 / N38

Table 5: Thermal resistance (stability) - power drop MPL 40x40x15 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field range MPL 40x40x15 / N38

Table 7: Safety (HSE) (implants) - warnings MPL 40x40x15 / N38

Table 8: Collisions (kinetic energy) - warning MPL 40x40x15 / N38

Table 9: Surface protection spec MPL 40x40x15 / N38

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

Table 11: Physics of underwater searching MPL 40x40x15 / N38

1. Vertical hold

2. Efficiency vs thickness

3. Heat tolerance

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

Chemical composition

Sustainability

Magnet pull force

Magnetic Field

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Pros and cons of Nd2Fe14B magnets.

Benefits

Cons

Holding force characteristics

Breakaway strength of the magnet in ideal conditions – what affects it?

Lifting capacity in real conditions – factors

Safety rules for work with neodymium magnets

Danger to pacemakers

Warning for allergy sufferers

No play value

Conscious usage

Bone fractures

Mechanical processing

Beware of splinters

Keep away from computers

Do not overheat magnets

Precision electronics

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs gap) - interaction chart
MPL 40x40x15 / N38

Table 2: Shear capacity (vertical surface)
MPL 40x40x15 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MPL 40x40x15 / N38

Table 4: Material efficiency (saturation) - power losses
MPL 40x40x15 / N38

Table 5: Thermal resistance (stability) - power drop
MPL 40x40x15 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field range
MPL 40x40x15 / N38

Table 7: Safety (HSE) (implants) - warnings
MPL 40x40x15 / N38

Table 8: Collisions (kinetic energy) - warning
MPL 40x40x15 / N38

Table 9: Surface protection spec
MPL 40x40x15 / N38

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

Table 11: Physics of underwater searching
MPL 40x40x15 / N38

Pros and cons of Nd₂Fe₁₄B magnets.