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MPL 40x20x10 / 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 020158

GTIN/EAN: 5906301811640

length

40 mm [±0,1 mm]

Width

20 mm [±0,1 mm]

Height

10 mm [±0,1 mm]

Weight

60 g

Magnetization Direction

↑ axial

Load capacity

24.62 kg / 241.53 N

Magnetic Induction

349.60 mT / 3496 Gs

Coating

[NiCuNi] Nickel

technical parameters »

31.00 ZŁ with VAT / pcs + price for transport

25.20 ZŁ net + 23% VAT / pcs

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Give us a call +48 888 99 98 98 alternatively contact us through request form through our site.
Force along with shape of a neodymium magnet can be analyzed with our power calculator.

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Detailed specification - MPL 40x20x10 / N38 - lamellar magnet

Specification / characteristics - MPL 40x20x10 / N38 - lamellar magnet

properties

properties	values
Cat. no.	020158
GTIN/EAN	5906301811640
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	20 mm [±0,1 mm]
Height	10 mm [±0,1 mm]
Weight	60 g
Magnetization Direction	↑ axial
Load capacity ~ ?	24.62 kg / 241.53 N
Magnetic Induction ~ ?	349.60 mT / 3496 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 40x20x10 / 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 simulation of the assembly - data

These data are the direct effect of a engineering analysis. Values rely on models for the class Nd₂Fe₁₄B. Operational conditions might slightly deviate from the simulation results. Treat these data as a preliminary roadmap during assembly planning.

Table 1: Static pull force (force vs distance) - interaction chart
MPL 40x20x10 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	3495 Gs 349.5 mT	24.62 kg / 54.28 LBS 24620.0 g / 241.5 N	dangerous!
1 mm	3272 Gs 327.2 mT	21.58 kg / 47.57 LBS 21578.0 g / 211.7 N	dangerous!
2 mm	3035 Gs 303.5 mT	18.56 kg / 40.92 LBS 18559.3 g / 182.1 N	dangerous!
3 mm	2794 Gs 279.4 mT	15.73 kg / 34.69 LBS 15733.0 g / 154.3 N	dangerous!
5 mm	2332 Gs 233.2 mT	10.96 kg / 24.16 LBS 10959.2 g / 107.5 N	dangerous!
10 mm	1433 Gs 143.3 mT	4.14 kg / 9.12 LBS 4136.4 g / 40.6 N	medium risk
15 mm	891 Gs 89.1 mT	1.60 kg / 3.52 LBS 1598.7 g / 15.7 N	weak grip
20 mm	574 Gs 57.4 mT	0.66 kg / 1.46 LBS 664.0 g / 6.5 N	weak grip
30 mm	267 Gs 26.7 mT	0.14 kg / 0.32 LBS 143.7 g / 1.4 N	weak grip
50 mm	82 Gs 8.2 mT	0.01 kg / 0.03 LBS 13.7 g / 0.1 N	weak grip

Pulling power weakens sharply with every mm of gap. Keep in mind that even the smallest gap (e.g., contamination, varnish, dust) strongly reduces the pull force. Magnetic products hold strongest during direct contact; gap drastically cuts the power. See how rapidly the pull force plummet, when the magnet does not touch directly to the steel surface. When designing the assembly, discard unnecessary gaps.

Table 2: Shear force (wall)
MPL 40x20x10 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	4.92 kg / 10.86 LBS 4924.0 g / 48.3 N
1 mm	Stal (~0.2)	4.32 kg / 9.52 LBS 4316.0 g / 42.3 N
2 mm	Stal (~0.2)	3.71 kg / 8.18 LBS 3712.0 g / 36.4 N
3 mm	Stal (~0.2)	3.15 kg / 6.94 LBS 3146.0 g / 30.9 N
5 mm	Stal (~0.2)	2.19 kg / 4.83 LBS 2192.0 g / 21.5 N
10 mm	Stal (~0.2)	0.83 kg / 1.83 LBS 828.0 g / 8.1 N
15 mm	Stal (~0.2)	0.32 kg / 0.71 LBS 320.0 g / 3.1 N
20 mm	Stal (~0.2)	0.13 kg / 0.29 LBS 132.0 g / 1.3 N
30 mm	Stal (~0.2)	0.03 kg / 0.06 LBS 28.0 g / 0.3 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 2.0 g / 0.0 N

The following data calculates the approximate force needed to initiate the slippage of the magnet down against a vertical metal surface (assuming standard friction coefficient). This value varies with the distance between the magnet and the surface.

Table 3: Wall mounting (sliding) - vertical pull
MPL 40x20x10 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	7.39 kg / 16.28 LBS 7386.0 g / 72.5 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	4.92 kg / 10.86 LBS 4924.0 g / 48.3 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	2.46 kg / 5.43 LBS 2462.0 g / 24.2 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	12.31 kg / 27.14 LBS 12310.0 g / 120.8 N

When hanging a magnet on a upright surface (e.g., a fridge), it will maintain only approx. 20%-30% of nominal attraction strength. Gravitational force as well as a weak degree of grip influence the fact that holders move down easier than they detach. Designing a hanger? Remember that the shear force is significantly lower than the perpendicular breakaway force. On a painted metal, the holder will give way down under a much lighter weight. Application of an anti-slip coating can effectively improve the result.

Table 4: Material efficiency (saturation) - power losses
MPL 40x20x10 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	5%	1.23 kg / 2.71 LBS 1231.0 g / 12.1 N
1 mm	13%	3.08 kg / 6.78 LBS 3077.5 g / 30.2 N
2 mm	25%	6.16 kg / 13.57 LBS 6155.0 g / 60.4 N
3 mm	38%	9.23 kg / 20.35 LBS 9232.5 g / 90.6 N
5 mm	63%	15.39 kg / 33.92 LBS 15387.5 g / 151.0 N
10 mm	100%	24.62 kg / 54.28 LBS 24620.0 g / 241.5 N
11 mm	100%	24.62 kg / 54.28 LBS 24620.0 g / 241.5 N
12 mm	100%	24.62 kg / 54.28 LBS 24620.0 g / 241.5 N

A thin metal plate cannot take in the entire magnetic field, which weakens actual performance of the holder. Should you install a neodymium to a weak sheet, the field will penetrate right through and the holding will be smaller. To achieve full efficiency of this neodymium's potential, you require a sufficiently solid backing of metal. The saturation effect causes that on thin elements (e.g., thin profiles), the magnet shows lower pull force. We advise picking the steel dimension from these parameters.

Table 5: Working in heat (stability) - thermal limit
MPL 40x20x10 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	24.62 kg / 54.28 LBS 24620.0 g / 241.5 N	OK
40 °C	-2.2%	24.08 kg / 53.08 LBS 24078.4 g / 236.2 N	OK
60 °C	-4.4%	23.54 kg / 51.89 LBS 23536.7 g / 230.9 N
80 °C	-6.6%	23.00 kg / 50.70 LBS 22995.1 g / 225.6 N
100 °C	-28.8%	17.53 kg / 38.65 LBS 17529.4 g / 172.0 N

Ordinary NdFeB products change their properties parameters after exceeding the maximum temperature. Watch out for overheating – high temperature can permanently destroy this magnet. With increasing heat, the neodymium's force briefly drops. Do not use this product close to heaters exceeding its operating temperature limit. Exceeding the critical threshold will cause permanent loss of magnetism.

*Technical advisory: Temperature resistance is determined by both grade, as well as the dimension ratios. Low-profile magnets (low Pc) are more susceptible to demagnetization at lower temperatures compared to rod magnets. Red status in the table points to permanent field degradation for this specific geometry.

Table 6: Two magnets (attraction) - field collision
MPL 40x20x10 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Strength (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	60.25 kg / 132.83 LBS 4 926 Gs	9.04 kg / 19.93 LBS 9038 g / 88.7 N	N/A
1 mm	56.58 kg / 124.73 LBS 6 774 Gs	8.49 kg / 18.71 LBS 8487 g / 83.3 N	50.92 kg / 112.26 LBS ~0 Gs
2 mm	52.81 kg / 116.42 LBS 6 544 Gs	7.92 kg / 17.46 LBS 7921 g / 77.7 N	47.53 kg / 104.78 LBS ~0 Gs
3 mm	49.07 kg / 108.19 LBS 6 309 Gs	7.36 kg / 16.23 LBS 7361 g / 72.2 N	44.17 kg / 97.37 LBS ~0 Gs
5 mm	41.89 kg / 92.34 LBS 5 828 Gs	6.28 kg / 13.85 LBS 6283 g / 61.6 N	37.70 kg / 83.11 LBS ~0 Gs
10 mm	26.82 kg / 59.13 LBS 4 664 Gs	4.02 kg / 8.87 LBS 4023 g / 39.5 N	24.14 kg / 53.22 LBS ~0 Gs
20 mm	10.12 kg / 22.32 LBS 2 865 Gs	1.52 kg / 3.35 LBS 1518 g / 14.9 N	9.11 kg / 20.09 LBS ~0 Gs
50 mm	0.73 kg / 1.61 LBS 769 Gs	0.11 kg / 0.24 LBS 109 g / 1.1 N	0.66 kg / 1.45 LBS ~0 Gs
60 mm	0.35 kg / 0.78 LBS 534 Gs	0.05 kg / 0.12 LBS 53 g / 0.5 N	0.32 kg / 0.70 LBS ~0 Gs
70 mm	0.18 kg / 0.40 LBS 383 Gs	0.03 kg / 0.06 LBS 27 g / 0.3 N	0.16 kg / 0.36 LBS ~0 Gs
80 mm	0.10 kg / 0.22 LBS 282 Gs	0.01 kg / 0.03 LBS 15 g / 0.1 N	0.09 kg / 0.20 LBS ~0 Gs
90 mm	0.06 kg / 0.12 LBS 214 Gs	0.01 kg / 0.02 LBS 8 g / 0.1 N	0.05 kg / 0.11 LBS ~0 Gs
100 mm	0.03 kg / 0.07 LBS 165 Gs	0.01 kg / 0.01 LBS 5 g / 0.0 N	0.03 kg / 0.07 LBS ~0 Gs

Two strong neodymiums attract each other from a wider radius than a neodymium and metal combination. The connection of two magnets produces a massive flux and a wider radius of action. Planning to create a solid fastener? Utilize two neodymiums instead of a neodymium and a striker plate. Be careful that when attracting two neodymiums, the collision energy is extreme. The repulsion force is marginally weaker than the attraction, but still large.
*The magnetic induction in repulsion mode drops to ~0 Gs at the geometric center between the magnets (resulting from vector opposition).
* Results demonstrate friction force of dual matching magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Protective zones (implants) - warnings
MPL 40x20x10 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	14.5 cm
Hearing aid	10 Gs (1.0 mT)	11.5 cm
Timepiece	20 Gs (2.0 mT)	9.0 cm
Mobile device	40 Gs (4.0 mT)	7.0 cm
Remote	50 Gs (5.0 mT)	6.5 cm
Payment card	400 Gs (40.0 mT)	2.5 cm
HDD hard drive	600 Gs (60.0 mT)	2.0 cm

Extremely neodym field poses a large risk to electronic devices as well as medical implants. These NdFeB products produce a field that disrupts operation of sensitive medical devices. Be aware: the unseen radiation penetrates the body and plastic. Special caution must be taken 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, HDD media, or precise measuring instruments.

Table 8: Collisions (kinetic energy) - collision effects
MPL 40x20x10 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	22.47 km/h (6.24 m/s)	1.17 J
30 mm	35.51 km/h (9.86 m/s)	2.92 J
50 mm	45.70 km/h (12.69 m/s)	4.83 J
100 mm	64.60 km/h (17.95 m/s)	9.66 J

NdFeB products are prone to chipping – a collision with steel causes immediate chipping. Pay attention to connection velocity – a magnet released freely turns into a projectile. Impact energy can cause material chips or painful pinches to skin. Always hold the magnet during installation so it doesn't hit violently against the steel surface. A collision at high speed ends with a crack of the magnet. Wear eye protection when playing with powerful specimens.

Table 9: Surface protection spec
MPL 40x20x10 / N38

Technical parameter	Value / Description
Coating type	[NiCuNi] Nickel
Layer structure	Nickel - Copper - Nickel
Layer thickness	10-20 µm
Salt spray test (SST) ?	24 h
Recommended environment	Indoors only (dry)

The following table defines the conditions under which this product can be safely used. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Construction data (P_c)
MPL 40x20x10 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	28 125 Mx	281.2 µWb
P_c Coefficient	0.42	Low (Flat)

Flux value 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 40x20x10 / N38

Environment	Effective steel pull	Effect
Air (land)	24.62 kg	Standard
Water (riverbed)	28.19 kg (+3.57 kg buoyancy gain)	+14.5%

Warning: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.

In water, the magnet feels stronger thanks to Archimedes' principle. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Shear force

*Note: On a vertical surface, the magnet holds just a fraction of its max power.

2. Plate thickness effect

*Thin steel (e.g. computer case) significantly weakens the holding force.

3. Heat tolerance

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

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.42

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%

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: 020158-2026

Quick Unit Converter

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Force in kg

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Model MPL 40x20x10 / N38 features a low profile and industrial pulling force, making it an ideal solution for building separators and machines. As a block magnet with high power (approx. 24.62 kg), this product is available off-the-shelf from our warehouse in Poland. Furthermore, its Ni-Cu-Ni coating secures it against corrosion in standard operating conditions, giving it an aesthetic appearance.

Separating block magnets requires a technique based on sliding (moving one relative to the other), rather than forceful pulling apart. To separate the MPL 40x20x10 / 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 generators and material handling systems. They work great as invisible mounts under tiles, wood, or glass. 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 40x20x10 / 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.

Standardly, the MPL 40x20x10 / N38 model is magnetized through the thickness (dimension 10 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.

The presented product is a neodymium magnet with precisely defined parameters: 40 mm (length), 20 mm (width), and 10 mm (thickness). The key parameter here is the holding force amounting to approximately 24.62 kg (force ~241.53 N), which, with such a flat shape, proves the high power of the material. The product meets the standards for N38 grade magnets.

Advantages and disadvantages of rare earth magnets.

Advantages

Apart from their consistent power, neodymium magnets have these key benefits:

They have constant strength, and over nearly 10 years their attraction force decreases symbolically – ~1% (according to theory),
Magnets very well resist against demagnetization caused by foreign field sources,
A magnet with a smooth gold surface is more attractive,
Magnets exhibit maximum magnetic induction on the outer layer,
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 accurate forming as well as adapting to concrete needs,
Fundamental importance in modern technologies – they are commonly used in hard drives, brushless drives, precision medical tools, and other advanced devices.
Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Disadvantages

Disadvantages of NdFeB magnets:

At very strong impacts they can break, therefore we recommend placing them in strong housings. A metal housing provides additional protection against damage and increases the magnet's durability.
When exposed to high temperature, neodymium magnets suffer a drop in power. Often, when the temperature exceeds 80°C, their power decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material immune to moisture, when using outdoors
Due to limitations in creating threads and complicated shapes in magnets, we propose using a housing - magnetic holder.
Health risk to health – tiny shards of magnets pose a threat, if swallowed, which becomes key in the context of child safety. Furthermore, small elements of these devices can be problematic in diagnostics medical when they are in the body.
Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Lifting parameters

Maximum lifting force for a neodymium magnet – what affects it?

Holding force of 24.62 kg is a theoretical maximum value executed under standard conditions:

with the use of a yoke made of special test steel, ensuring maximum field concentration
whose thickness is min. 10 mm
with a plane free of scratches
under conditions of no distance (metal-to-metal)
during pulling in a direction perpendicular to the mounting surface
in neutral thermal conditions

Determinants of practical lifting force of a magnet

It is worth knowing that the magnet holding will differ depending on elements below, in order of importance:

Distance – the presence of any layer (rust, tape, air) interrupts the magnetic circuit, which reduces capacity rapidly (even by 50% at 0.5 mm).
Angle of force application – maximum parameter is obtained only during perpendicular pulling. The shear force of the magnet along the plate is typically many times smaller (approx. 1/5 of the lifting capacity).
Base massiveness – insufficiently thick steel does not close the flux, causing part of the power to be escaped to the other side.
Steel grade – ideal substrate is high-permeability steel. Stainless steels may generate lower lifting capacity.
Smoothness – full contact is obtained only on smooth steel. Rough texture create air cushions, weakening the magnet.
Thermal factor – hot environment weakens pulling force. Exceeding the limit temperature can permanently demagnetize the magnet.

Lifting capacity testing was carried out on plates with a smooth surface of optimal thickness, under perpendicular forces, in contrast under attempts to slide the magnet the holding force is lower. In addition, even a slight gap between the magnet and the plate reduces the holding force.

Precautions when working with neodymium magnets

Bodily injuries

Risk of injury: The attraction force is so great that it can cause hematomas, crushing, and even bone fractures. Protective gloves are recommended.

Permanent damage

Keep cool. Neodymium magnets are susceptible to heat. If you require operation above 80°C, inquire about special high-temperature series (H, SH, UH).

Handling rules

Handle magnets with awareness. Their immense force can surprise even experienced users. Be vigilant and respect their power.

Flammability

Machining of neodymium magnets poses a fire hazard. Magnetic powder reacts violently with oxygen and is difficult to extinguish.

Impact on smartphones

A powerful magnetic field interferes with the functioning of compasses in phones and GPS navigation. Maintain magnets close to a device to prevent damaging the sensors.

Warning for heart patients

Health Alert: Strong magnets can turn off pacemakers and defibrillators. Do not approach if you have electronic implants.

Electronic hazard

Avoid bringing magnets close to a wallet, laptop, or screen. The magnetic field can destroy these devices and wipe information from cards.

Keep away from children

NdFeB magnets are not intended for children. Swallowing a few magnets may result in them pinching intestinal walls, which poses a direct threat to life and necessitates immediate surgery.

Magnet fragility

Despite the nickel coating, neodymium is brittle and cannot withstand shocks. Do not hit, as the magnet may crumble into hazardous fragments.

Skin irritation risks

Some people have a contact allergy to Ni, which is the typical protective layer for NdFeB magnets. Extended handling can result in dermatitis. We recommend wear protective gloves.

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

MPL 40x20x10 / N38 - lamellar magnet

Detailed specification - MPL 40x20x10 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering simulation of the assembly - data

Table 1: Static pull force (force vs distance) - interaction chart MPL 40x20x10 / N38

Table 2: Shear force (wall) MPL 40x20x10 / N38

Table 3: Wall mounting (sliding) - vertical pull MPL 40x20x10 / N38

Table 4: Material efficiency (saturation) - power losses MPL 40x20x10 / N38

Table 5: Working in heat (stability) - thermal limit MPL 40x20x10 / N38

Table 6: Two magnets (attraction) - field collision MPL 40x20x10 / N38

Table 7: Protective zones (implants) - warnings MPL 40x20x10 / N38

Table 8: Collisions (kinetic energy) - collision effects MPL 40x20x10 / N38

Table 9: Surface protection spec MPL 40x20x10 / N38

Table 10: Construction data (Pc) MPL 40x20x10 / N38

Table 11: Underwater work (magnet fishing) MPL 40x20x10 / N38

1. Shear force

2. Plate thickness effect

3. Heat tolerance

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

Elemental analysis

Ecology and recycling (GPSR)

Pulling force

Field Strength

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Advantages and disadvantages of rare earth magnets.

Advantages

Disadvantages

Lifting parameters

Maximum lifting force for a neodymium magnet – what affects it?

Determinants of practical lifting force of a magnet

Precautions when working with neodymium magnets

Bodily injuries

Permanent damage

Handling rules

Flammability

Impact on smartphones

Warning for heart patients

Electronic hazard

Keep away from children

Magnet fragility

Skin irritation risks

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs distance) - interaction chart
MPL 40x20x10 / N38

Table 2: Shear force (wall)
MPL 40x20x10 / N38

Table 3: Wall mounting (sliding) - vertical pull
MPL 40x20x10 / N38

Table 4: Material efficiency (saturation) - power losses
MPL 40x20x10 / N38

Table 5: Working in heat (stability) - thermal limit
MPL 40x20x10 / N38

Table 6: Two magnets (attraction) - field collision
MPL 40x20x10 / N38

Table 7: Protective zones (implants) - warnings
MPL 40x20x10 / N38

Table 8: Collisions (kinetic energy) - collision effects
MPL 40x20x10 / N38

Table 9: Surface protection spec
MPL 40x20x10 / N38

Table 10: Construction data (P_c)
MPL 40x20x10 / N38

Table 11: Underwater work (magnet fishing)
MPL 40x20x10 / N38