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MPL 40x18x10 SH / 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 020157

GTIN/EAN: 5906301811633

5.00

length

40 mm [±0,1 mm]

Width

18 mm [±0,1 mm]

Height

10 mm [±0,1 mm]

Weight

54 g

Magnetization Direction

↑ axial

Load capacity

23.81 kg / 233.58 N

Magnetic Induction

366.66 mT / 3667 Gs

Coating

[NiCuNi] Nickel

check properties »

36.29 ZŁ with VAT / pcs + price for transport

29.50 ZŁ net + 23% VAT / pcs

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Carbon Footprint – environmental impact GPSR Regulation – product safety

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Force as well as shape of a neodymium magnet can be tested with our online calculation tool.

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Product card - MPL 40x18x10 SH / N38 - lamellar magnet

Specification / characteristics - MPL 40x18x10 SH / N38 - lamellar magnet

properties

properties	values
Cat. no.	020157
GTIN/EAN	5906301811633
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	18 mm [±0,1 mm]
Height	10 mm [±0,1 mm]
Weight	54 g
Magnetization Direction	↑ axial
Load capacity ~ ?	23.81 kg / 233.58 N
Magnetic Induction ~ ?	366.66 mT / 3667 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 40x18x10 SH / 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

Physical modeling of the magnet - technical parameters

Presented values constitute the result of a mathematical calculation. Values are based on algorithms for the material Nd₂Fe₁₄B. Real-world conditions might slightly deviate from the simulation results. Use these calculations as a preliminary roadmap during assembly planning.

Table 1: Static force (force vs gap) - interaction chart
MPL 40x18x10 SH / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	3666 Gs 366.6 mT	23.81 kg / 52.49 pounds 23810.0 g / 233.6 N	crushing
1 mm	3399 Gs 339.9 mT	20.48 kg / 45.14 pounds 20476.1 g / 200.9 N	crushing
2 mm	3120 Gs 312.0 mT	17.25 kg / 38.02 pounds 17245.9 g / 169.2 N	crushing
3 mm	2841 Gs 284.1 mT	14.30 kg / 31.54 pounds 14304.1 g / 140.3 N	crushing
5 mm	2321 Gs 232.1 mT	9.55 kg / 21.05 pounds 9547.8 g / 93.7 N	strong
10 mm	1370 Gs 137.0 mT	3.32 kg / 7.33 pounds 3324.4 g / 32.6 N	strong
15 mm	833 Gs 83.3 mT	1.23 kg / 2.71 pounds 1229.0 g / 12.1 N	safe
20 mm	530 Gs 53.0 mT	0.50 kg / 1.10 pounds 498.1 g / 4.9 N	safe
30 mm	244 Gs 24.4 mT	0.11 kg / 0.23 pounds 105.3 g / 1.0 N	safe
50 mm	75 Gs 7.5 mT	0.01 kg / 0.02 pounds 9.9 g / 0.1 N	safe

Magnetic force drops sharply per each millimeter of gap. Note that even a very thin break (e.g., dirt, paint, rust) noticeably reduces the pull force. Magnetic products operate most effectively in perfect adhesion; distance kills the force. Notice how rapidly the parameters fall, when the product does not touch flatly to the steel surface. When calculating the arrangement, eliminate redundant distances.

Table 2: Shear load (wall)
MPL 40x18x10 SH / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	4.76 kg / 10.50 pounds 4762.0 g / 46.7 N
1 mm	Stal (~0.2)	4.10 kg / 9.03 pounds 4096.0 g / 40.2 N
2 mm	Stal (~0.2)	3.45 kg / 7.61 pounds 3450.0 g / 33.8 N
3 mm	Stal (~0.2)	2.86 kg / 6.31 pounds 2860.0 g / 28.1 N
5 mm	Stal (~0.2)	1.91 kg / 4.21 pounds 1910.0 g / 18.7 N
10 mm	Stal (~0.2)	0.66 kg / 1.46 pounds 664.0 g / 6.5 N
15 mm	Stal (~0.2)	0.25 kg / 0.54 pounds 246.0 g / 2.4 N
20 mm	Stal (~0.2)	0.10 kg / 0.22 pounds 100.0 g / 1.0 N
30 mm	Stal (~0.2)	0.02 kg / 0.05 pounds 22.0 g / 0.2 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 2.0 g / 0.0 N

The following data indicates the approximate holding capacity necessary to start the slippage of the magnet vertically along a vertical steel wall (considering typical friction coefficient). This parameter varies with the distance between the magnet and the surface.

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MPL 40x18x10 SH / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	7.14 kg / 15.75 pounds 7143.0 g / 70.1 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	4.76 kg / 10.50 pounds 4762.0 g / 46.7 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	2.38 kg / 5.25 pounds 2381.0 g / 23.4 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	11.91 kg / 26.25 pounds 11905.0 g / 116.8 N

When mounting a holder on a vertical surface (e.g., a fridge), it will only hold just about 1/5 of its maximum pull force. Gravitational force as well as a weak degree of grip cause that magnets slip faster than they pull off. Designing a hanger? Consider that the sliding force is significantly lower than the perpendicular breakaway force. On a painted metal, the holder will give way down under a significantly smaller load. Utilizing a rubberized pad can significantly raise the stability.

Table 4: Steel thickness (saturation) - power losses
MPL 40x18x10 SH / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	5%	1.19 kg / 2.62 pounds 1190.5 g / 11.7 N
1 mm	13%	2.98 kg / 6.56 pounds 2976.3 g / 29.2 N
2 mm	25%	5.95 kg / 13.12 pounds 5952.5 g / 58.4 N
3 mm	38%	8.93 kg / 19.68 pounds 8928.7 g / 87.6 N
5 mm	63%	14.88 kg / 32.81 pounds 14881.3 g / 146.0 N
10 mm	100%	23.81 kg / 52.49 pounds 23810.0 g / 233.6 N
11 mm	100%	23.81 kg / 52.49 pounds 23810.0 g / 233.6 N
12 mm	100%	23.81 kg / 52.49 pounds 23810.0 g / 233.6 N

A thin metal plate is incapable of conduct the full magnetic flux, which wastes potential of the magnet. If you install a neodymium to a thin surface, the magnetism will penetrate right through and the pull force will drop sharply. To utilize the maximum of this neodymium's power, you require a sufficiently solid backing of metal. The saturation phenomenon means that on delicate walls (e.g., car bodies), the holder works worse. We suggest choosing the steel cross-section from these parameters.

Table 5: Thermal stability (stability) - thermal limit
MPL 40x18x10 SH / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	23.81 kg / 52.49 pounds 23810.0 g / 233.6 N	OK
40 °C	-2.2%	23.29 kg / 51.34 pounds 23286.2 g / 228.4 N	OK
60 °C	-4.4%	22.76 kg / 50.18 pounds 22762.4 g / 223.3 N
80 °C	-6.6%	22.24 kg / 49.03 pounds 22238.5 g / 218.2 N
100 °C	-28.8%	16.95 kg / 37.37 pounds 16952.7 g / 166.3 N

Classic neodymiums irreversibly lose parameters above the temperature limit. Protect against heat – excessive heat can irreversibly destroy this product. As the temperature rises, the neodymium's power momentarily drops. Avoid using this product in hot environments exceeding its working range. Ignoring the limit will cause permanent loss of magnetic properties.

*Engineering note: Thermal stability depends not only on the material grade, as well as the dimension ratios. Low-profile magnets (pancake types) are more susceptible to demagnetization under lower heat stress than taller cylinders. Red status in the table indicates a risk of irreversible loss for this particular item.

Table 6: Magnet-Magnet interaction (repulsion) - field range
MPL 40x18x10 SH / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Sliding Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	59.64 kg / 131.49 pounds 5 034 Gs	8.95 kg / 19.72 pounds 8947 g / 87.8 N	N/A
1 mm	55.50 kg / 122.35 pounds 7 072 Gs	8.32 kg / 18.35 pounds 8325 g / 81.7 N	49.95 kg / 110.12 pounds ~0 Gs
2 mm	51.29 kg / 113.08 pounds 6 799 Gs	7.69 kg / 16.96 pounds 7694 g / 75.5 N	46.16 kg / 101.77 pounds ~0 Gs
3 mm	47.18 kg / 104.01 pounds 6 520 Gs	7.08 kg / 15.60 pounds 7076 g / 69.4 N	42.46 kg / 93.61 pounds ~0 Gs
5 mm	39.41 kg / 86.88 pounds 5 959 Gs	5.91 kg / 13.03 pounds 5912 g / 58.0 N	35.47 kg / 78.20 pounds ~0 Gs
10 mm	23.92 kg / 52.73 pounds 4 643 Gs	3.59 kg / 7.91 pounds 3588 g / 35.2 N	21.53 kg / 47.46 pounds ~0 Gs
20 mm	8.33 kg / 18.36 pounds 2 739 Gs	1.25 kg / 2.75 pounds 1249 g / 12.3 N	7.49 kg / 16.52 pounds ~0 Gs
50 mm	0.55 kg / 1.22 pounds 705 Gs	0.08 kg / 0.18 pounds 83 g / 0.8 N	0.50 kg / 1.09 pounds ~0 Gs
60 mm	0.26 kg / 0.58 pounds 487 Gs	0.04 kg / 0.09 pounds 40 g / 0.4 N	0.24 kg / 0.52 pounds ~0 Gs
70 mm	0.13 kg / 0.30 pounds 348 Gs	0.02 kg / 0.04 pounds 20 g / 0.2 N	0.12 kg / 0.27 pounds ~0 Gs
80 mm	0.07 kg / 0.16 pounds 256 Gs	0.01 kg / 0.02 pounds 11 g / 0.1 N	0.07 kg / 0.14 pounds ~0 Gs
90 mm	0.04 kg / 0.09 pounds 194 Gs	0.01 kg / 0.01 pounds 6 g / 0.1 N	0.04 kg / 0.08 pounds ~0 Gs
100 mm	0.02 kg / 0.05 pounds 149 Gs	0.00 kg / 0.01 pounds 4 g / 0.0 N	0.02 kg / 0.05 pounds ~0 Gs

Two magnets interact from a wider radius than a neodymium and metal combination. The setup of two magnets produces a massive flux and a larger range of performance. Designing a powerful holder? Use a pair of magnets instead of a neodymium and a striker plate. Remember that when attracting two neodymiums, the pinch force is massive. The levitation is marginally weaker than the attraction, but still significant.
*Flux density between like poles reaches ~0 Gs at the midpoint between the magnets (resulting from vector opposition).
* Results demonstrate sliding force of a pair of matching neodymium magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Protective zones (implants) - precautionary measures
MPL 40x18x10 SH / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	14.0 cm
Hearing aid	10 Gs (1.0 mT)	11.0 cm
Timepiece	20 Gs (2.0 mT)	8.5 cm
Mobile device	40 Gs (4.0 mT)	6.5 cm
Car key	50 Gs (5.0 mT)	6.0 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 electronics as well as medical implants. These NdFeB products produce a flux that disrupts operation of digital equipment. Be aware: the invisible magnetic field passes through tissues and housings. Exceptional care must be exercised by people with hearing aids and drug dispensers. Influence will be felt by: automatic timepieces, car keys, speakers, and screens. Do not place the magnet near cards, HDD media, or precise measuring instruments.

Table 8: Collisions (kinetic energy) - warning
MPL 40x18x10 SH / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	22.95 km/h (6.38 m/s)	1.10 J
30 mm	36.78 km/h (10.22 m/s)	2.82 J
50 mm	47.37 km/h (13.16 m/s)	4.67 J
100 mm	66.97 km/h (18.60 m/s)	9.34 J

Neodymium magnets are very brittle – a strong collision with metal causes immediate chipping. Pay attention to connection velocity – a magnet released freely turns into a projectile. Striking energy can trigger coating fragments or injury to skin. Be sure to control the product during bringing near metal so it doesn't slam with momentum against the metal. A contact at a velocity of dozens of km/h ends with a crack of the neodymium. Wear eye protection when handling with large magnets.

Table 9: Surface protection spec
MPL 40x18x10 SH / 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. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Construction data (P_c)
MPL 40x18x10 SH / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	26 060 Mx	260.6 µWb
P_c Coefficient	0.43	Low (Flat)

Total magnetic flux emitted by the pole surface. Essential parameter for generator designers as well as sensors. P_c value defines the magnet's operating point.

Table 11: Underwater work (magnet fishing)
MPL 40x18x10 SH / N38

Environment	Effective steel pull	Effect
Air (land)	23.81 kg	Standard
Water (riverbed)	27.26 kg (+3.45 kg buoyancy gain)	+14.5%

Corrosion 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. Buoyancy helps in lifting finds.

1. Wall mount (shear)

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

2. Efficiency vs thickness

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

3. Thermal stability

*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.

Technical specification and ecology

Material specification

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: 020157-2026

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Model MPL 40x18x10 SH / 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. 23.81 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.

Separating strong flat magnets requires a technique based on sliding (moving one relative to the other), rather than forceful pulling apart. To separate the MPL 40x18x10 SH / N38 model, firmly slide one magnet over the edge of the other until the attraction force decreases. We recommend extreme caution, 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. Thanks to the flat surface and high force (approx. 23.81 kg), they are ideal as hidden locks 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 40x18x10 SH / N38, we recommend utilizing 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. Avoid chemically aggressive glues or hot glue, which can demagnetize neodymium (above 80°C).

The magnetic axis runs through the shortest dimension, which is typical for gripper magnets. In practice, this means that this magnet has the greatest attraction force on its main planes (40x18 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), 18 mm (width), and 10 mm (thickness). The key parameter here is the lifting capacity amounting to approximately 23.81 kg (force ~233.58 N), which, with such a flat shape, proves the high power of the material. The protective [NiCuNi] coating secures the magnet against corrosion.

Advantages as well as disadvantages of rare earth magnets.

Pros

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

They virtually do not lose power, because even after 10 years the performance loss is only ~1% (according to literature),
Neodymium magnets are highly resistant to loss of magnetic properties caused by external magnetic fields,
By using a decorative layer of gold, the element gains an proper look,
Neodymium magnets deliver maximum magnetic induction on a small surface, which ensures high operational effectiveness,
Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
Possibility of custom forming as well as adapting to defined conditions,
Key role in modern industrial fields – they are used in magnetic memories, drive modules, diagnostic systems, as well as technologically advanced constructions.
Relatively small size with high pulling force – neodymium magnets offer high power in tiny dimensions, which makes them useful in miniature devices

Limitations

What to avoid - cons of neodymium magnets and ways of using them

To avoid cracks upon strong impacts, we suggest using special steel housings. Such a solution protects the magnet and simultaneously increases its durability.
When exposed to high temperature, neodymium magnets suffer a drop in strength. 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
They oxidize in a humid environment. For use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
Due to limitations in producing nuts and complex shapes in magnets, we recommend using cover - magnetic holder.
Possible danger to health – tiny shards of magnets are risky, if swallowed, which is particularly important in the context of child safety. Additionally, small elements of these devices are able to complicate diagnosis medical after entering the body.
Due to neodymium price, their price is relatively high,

Holding force characteristics

Highest magnetic holding force – what contributes to it?

Magnet power is the result of a measurement for optimal configuration, taking into account:

with the contact of a yoke made of special test steel, guaranteeing full magnetic saturation
possessing a massiveness of min. 10 mm to avoid saturation
with a plane cleaned and smooth
under conditions of gap-free contact (metal-to-metal)
under vertical application of breakaway force (90-degree angle)
at conditions approx. 20°C

Practical lifting capacity: influencing factors

Bear in mind that the magnet holding may be lower influenced by elements below, in order of importance:

Distance – existence of any layer (paint, tape, air) interrupts the magnetic circuit, which lowers capacity steeply (even by 50% at 0.5 mm).
Pull-off angle – remember that the magnet has greatest strength perpendicularly. Under shear forces, the capacity drops significantly, often to levels of 20-30% of the maximum value.
Steel thickness – too thin plate causes magnetic saturation, causing part of the power to be wasted into the air.
Chemical composition of the base – mild steel attracts best. Alloy admixtures reduce magnetic permeability and lifting capacity.
Plate texture – ground elements guarantee perfect abutment, which improves force. Rough surfaces reduce efficiency.
Temperature influence – high temperature weakens pulling force. Exceeding the limit temperature can permanently damage the magnet.

Lifting capacity testing was carried out on plates with a smooth surface of optimal thickness, under a perpendicular pulling force, however under parallel forces the lifting capacity is smaller. Additionally, even a minimal clearance between the magnet’s surface and the plate reduces the lifting capacity.

Safe handling of NdFeB magnets

Allergy Warning

Some people experience a contact allergy to nickel, which is the standard coating for NdFeB magnets. Frequent touching may cause dermatitis. We suggest use safety gloves.

Adults only

Absolutely store magnets away from children. Ingestion danger is high, and the consequences of magnets connecting inside the body are very dangerous.

Danger to pacemakers

For implant holders: Powerful magnets disrupt medical devices. Keep minimum 30 cm distance or request help to handle the magnets.

Fragile material

Neodymium magnets are sintered ceramics, which means they are fragile like glass. Collision of two magnets will cause them breaking into shards.

Do not overheat magnets

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

Serious injuries

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

Respect the power

Handle magnets with awareness. Their immense force can surprise even professionals. Stay alert and do not underestimate their power.

Precision electronics

Navigation devices and smartphones are extremely sensitive to magnetism. Close proximity with a powerful NdFeB magnet can permanently damage the sensors in your phone.

Dust is flammable

Drilling and cutting of neodymium magnets poses a fire risk. Neodymium dust oxidizes rapidly with oxygen and is difficult to extinguish.

Electronic hazard

Device Safety: Neodymium magnets can damage payment cards and sensitive devices (heart implants, hearing aids, mechanical watches).

Security! Looking for details? Read our article: Are neodymium magnets dangerous?

MPL 40x18x10 SH / N38 - lamellar magnet

Product card - MPL 40x18x10 SH / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical modeling of the magnet - technical parameters

Table 1: Static force (force vs gap) - interaction chart MPL 40x18x10 SH / N38

Table 2: Shear load (wall) MPL 40x18x10 SH / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces MPL 40x18x10 SH / N38

Table 4: Steel thickness (saturation) - power losses MPL 40x18x10 SH / N38

Table 5: Thermal stability (stability) - thermal limit MPL 40x18x10 SH / N38

Table 6: Magnet-Magnet interaction (repulsion) - field range MPL 40x18x10 SH / N38

Table 7: Protective zones (implants) - precautionary measures MPL 40x18x10 SH / N38

Table 8: Collisions (kinetic energy) - warning MPL 40x18x10 SH / N38

Table 9: Surface protection spec MPL 40x18x10 SH / N38

Table 10: Construction data (Pc) MPL 40x18x10 SH / N38

Table 11: Underwater work (magnet fishing) MPL 40x18x10 SH / N38

1. Wall mount (shear)

2. Efficiency vs thickness

3. Thermal stability

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

Material specification

Ecology and recycling (GPSR)

Force (pull)

Magnetic Induction

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Advantages as well as disadvantages of rare earth magnets.

Pros

Limitations

Holding force characteristics

Highest magnetic holding force – what contributes to it?

Practical lifting capacity: influencing factors

Safe handling of NdFeB magnets

Allergy Warning

Adults only

Danger to pacemakers

Fragile material

Do not overheat magnets

Serious injuries

Respect the power

Precision electronics

Dust is flammable

Electronic hazard

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs gap) - interaction chart
MPL 40x18x10 SH / N38

Table 2: Shear load (wall)
MPL 40x18x10 SH / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MPL 40x18x10 SH / N38

Table 4: Steel thickness (saturation) - power losses
MPL 40x18x10 SH / N38

Table 5: Thermal stability (stability) - thermal limit
MPL 40x18x10 SH / N38

Table 6: Magnet-Magnet interaction (repulsion) - field range
MPL 40x18x10 SH / N38

Table 7: Protective zones (implants) - precautionary measures
MPL 40x18x10 SH / N38

Table 8: Collisions (kinetic energy) - warning
MPL 40x18x10 SH / N38

Table 9: Surface protection spec
MPL 40x18x10 SH / N38

Table 10: Construction data (P_c)
MPL 40x18x10 SH / N38

Table 11: Underwater work (magnet fishing)
MPL 40x18x10 SH / N38