Product available Ships today (order by 14:00)

MPL 40x18x10 / 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 020156

GTIN/EAN: 5906301811626

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

technical parameters »

30.75 ZŁ with VAT / pcs + price for transport

25.00 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs

25.00 ZŁ

30.75 ZŁ

price from 30 pcs

23.50 ZŁ

28.91 ZŁ

price from 100 pcs

22.00 ZŁ

27.06 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Need advice?

Call us now +48 888 99 98 98 alternatively contact us via inquiry form the contact form page.
Specifications along with shape of magnetic components can be tested using our modular calculator.

Orders submitted before 14:00 will be dispatched today!

Technical details - MPL 40x18x10 / N38 - lamellar magnet

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

properties

properties	values
Cat. no.	020156
GTIN/EAN	5906301811626
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 / 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 magnet - data

These data represent the result of a engineering analysis. Results rely on models for the material Nd₂Fe₁₄B. Operational performance may deviate from the simulation results. Please consider these calculations as a supplementary guide during assembly planning.

Table 1: Static pull force (pull vs distance) - power drop
MPL 40x18x10 / 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 lbs 23810.0 g / 233.6 N	crushing
1 mm	3399 Gs 339.9 mT	20.48 kg / 45.14 lbs 20476.1 g / 200.9 N	crushing
2 mm	3120 Gs 312.0 mT	17.25 kg / 38.02 lbs 17245.9 g / 169.2 N	crushing
3 mm	2841 Gs 284.1 mT	14.30 kg / 31.54 lbs 14304.1 g / 140.3 N	crushing
5 mm	2321 Gs 232.1 mT	9.55 kg / 21.05 lbs 9547.8 g / 93.7 N	warning
10 mm	1370 Gs 137.0 mT	3.32 kg / 7.33 lbs 3324.4 g / 32.6 N	warning
15 mm	833 Gs 83.3 mT	1.23 kg / 2.71 lbs 1229.0 g / 12.1 N	safe
20 mm	530 Gs 53.0 mT	0.50 kg / 1.10 lbs 498.1 g / 4.9 N	safe
30 mm	244 Gs 24.4 mT	0.11 kg / 0.23 lbs 105.3 g / 1.0 N	safe
50 mm	75 Gs 7.5 mT	0.01 kg / 0.02 lbs 9.9 g / 0.1 N	safe

Magnetic force decreases drastically per each millimeter of spacing. Note that even a microscopic distance (e.g., contamination, paint, veneer) significantly diminishes the holding power. Neodymiums work optimally in perfect adhesion; gap drastically cuts the force. Analyze how quickly the pull force drop, when the product does not adhere flatly to the metal substrate. When planning the mounting, eliminate additional spacers.

Table 2: Sliding force (vertical surface)
MPL 40x18x10 / N38

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

The following data shows the approximate holding capacity required to start the shifting of the magnet downwards on a upright steel plate (considering typical friction coefficient). This value depends on the separation distance between the magnet and the metal.

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MPL 40x18x10 / 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 lbs 7143.0 g / 70.1 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	4.76 kg / 10.50 lbs 4762.0 g / 46.7 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	2.38 kg / 5.25 lbs 2381.0 g / 23.4 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	11.91 kg / 26.25 lbs 11905.0 g / 116.8 N

When placing a element on a upright wall (e.g., a fridge), it will only hold barely approx. 20%-30% of nominal attraction strength. Gravitational force and a low friction coefficient cause that magnets slide down easier than they detach. Designing a hanger? Note that the sliding force is significantly lower than the perpendicular breakaway force. On a smooth steel, the holder will slip down under a noticeably lighter load. Application of an anti-slip layer can effectively increase the grip.

Table 4: Material efficiency (substrate influence) - power losses
MPL 40x18x10 / N38

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

A too thin steel is unable to absorb the full magnetic flux, which squanders power 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 magnet's potential, you require a sufficiently solid element of steel. The material oversaturation means that on delicate walls (e.g., car bodies), the product holds weaker. We recommend selecting the steel dimension from these parameters.

Table 5: Thermal resistance (material behavior) - power drop
MPL 40x18x10 / N38

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

Ordinary NdFeB products irreversibly lose power above the temperature limit. Protect against heat – heat can permanently demagnetize this magnet. As the temperature rises, the magnet's force briefly decreases. Avoid using this magnet close to ovens higher than its operating temperature limit. Exceeding the critical threshold will cause permanent loss of magnetic properties.

*Engineering note: Heat tolerance is determined by both grade, and the Permeance Coefficient Pc. Flat magnets (low permeance coefficient) are more susceptible to demagnetization under lower heat stress than taller cylinders. The danger warning in the table points to permanent field degradation for this particular item.

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

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

Two magnets interact from a much further distance than a magnet and steel setup. The setup of magnet-to-magnet creates a more powerful interaction and a larger range of operation. Designing a solid fastener? Apply two magnets instead of one magnet and a striker plate. Be careful that when connecting a pair of magnets, the collision energy is massive. The levitation is marginally weaker than the attraction, but still large.
*Field value for N-N configuration is approximately ~0 Gs in the exact middle between the magnets (caused by magnetic field nullification).
* Calculations show shear force of two matching magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Safety (HSE) (electronics) - precautionary measures
MPL 40x18x10 / 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
Phone / Smartphone	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

A strong magnetic field poses a serious hazard to electronics as well as medical implants. These magnets generate a field that disrupts operation of digital equipment. Remember: the invisible magnetic field penetrates the body and glass. Exceptional care must be exercised by people with cochlear implants and insulin pumps. Influence will be felt by: automatic timepieces, remotes, speakers, and screens. Avoid contact with magnetic cards, HDD media, or precise measuring instruments.

Table 8: Impact energy (cracking risk) - collision effects
MPL 40x18x10 / 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

NdFeB products are prone to chipping – a collision with steel risks their cracking. Watch the impact speed – a magnet released freely turns into a projectile. Striking energy can destroy the magnet or dangerous crushing to fingers. Be sure to control the product during bringing near metal so it doesn't hit violently against the steel surface. A collision at high speed almost guarantees destruction of the neodymium. Wear eye protection when playing with powerful specimens.

Table 9: Anti-corrosion coating durability
MPL 40x18x10 / 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. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Construction data (P_c)
MPL 40x18x10 / 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. Key data for generator designers as well as sensors. P_c value determines the magnet's operating point.

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

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

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

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

1. Wall mount (shear)

*Note: On a vertical surface, the magnet retains only a fraction of its perpendicular strength.

2. Plate thickness effect

*Thin metal sheet (e.g. computer case) drastically 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) = 0.43

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

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%

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: 020156-2026

Magnet Unit Converter

Force (pull)

Force in kg

Newtons (N)

Pounds (lbs)

Magnetic Induction

Induction (Gs)

Tesla (T)

Just fill in one field, and the calculator calculate everything else for you.

Other deals

Product available Ships today (order by 14:00)

UMS 42x12.5x6.5x9 / N38 - conical magnetic holder

27.06 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

MW 33x10 / N38 - cylindrical magnet

26.52 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

UMC 60x9/5x15 / N38 - cylindrical magnetic holder

64.94 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

MW 8x20 / N38 - cylindrical magnet

4.60 ZŁ brutto / pcs

Component MPL 40x18x10 / N38 features a flat shape and industrial pulling force, making it an ideal solution for building separators and machines. This magnetic block with a force of 233.58 N is ready for shipment in 24h, allowing for rapid realization of your project. Additionally, its Ni-Cu-Ni coating secures 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 23.81 kg can pinch very hard and cause hematomas. Never use metal tools for prying, as the brittle NdFeB material may chip and damage your eyes.

Plate magnets MPL 40x18x10 / N38 are the foundation for many industrial devices, such as filters catching filings and linear motors. 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. Customers often choose this model for hanging tools on strips and for advanced DIY and modeling projects, where precision and power count.

Cyanoacrylate glues (super glue type) are good only for small magnets; for larger plates, we recommend resins. 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 40x18x10 / N38 model is magnetized axially (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.

This model is characterized by dimensions 40x18x10 mm, which, at a weight of 54 g, makes it an element with high energy density. It is a magnetic block with dimensions 40x18x10 mm and a self-weight of 54 g, ready to work at temperatures up to 80°C. The protective [NiCuNi] coating secures the magnet against corrosion.

Strengths as well as weaknesses of rare earth magnets.

Pros

Apart from their strong magnetic energy, neodymium magnets have these key benefits:

They virtually do not lose strength, because even after 10 years the decline in efficiency is only ~1% (based on calculations),
Neodymium magnets are distinguished by highly resistant to loss of magnetic properties caused by magnetic disturbances,
A magnet with a metallic gold surface looks better,
They are known for high magnetic induction at the operating surface, making them more effective,
Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can work (depending on the shape) even at a temperature of 230°C or more...
Possibility of precise forming as well as modifying to defined requirements,
Huge importance in modern technologies – they are utilized in magnetic memories, brushless drives, medical devices, also other advanced devices.
Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in compact dimensions, which allows their use in miniature devices

Disadvantages

Disadvantages of neodymium magnets:

At strong impacts they can crack, therefore we recommend placing them in strong housings. A metal housing provides additional protection against damage and increases the magnet's durability.
Neodymium magnets lose their power under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
They rust in a humid environment - during use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
Due to limitations in producing threads and complicated shapes in magnets, we recommend using cover - magnetic holder.
Health risk to health – tiny shards of magnets pose a threat, when accidentally swallowed, which is particularly important in the context of child safety. Additionally, small components of these devices can disrupt the diagnostic process medical in case of swallowing.
Due to complex production process, their price is higher than average,

Pull force analysis

Maximum lifting force for a neodymium magnet – what it depends on?

Holding force of 23.81 kg is a measurement result conducted under standard conditions:

using a sheet made of high-permeability steel, serving as a ideal flux conductor
whose thickness equals approx. 10 mm
with a surface cleaned and smooth
with zero gap (no impurities)
for force acting at a right angle (pull-off, not shear)
at ambient temperature approx. 20 degrees Celsius

Lifting capacity in real conditions – factors

It is worth knowing that the magnet holding will differ influenced by elements below, starting with the most relevant:

Distance (between the magnet and the plate), as even a tiny distance (e.g. 0.5 mm) leads to a decrease in lifting capacity by up to 50% (this also applies to varnish, corrosion or dirt).
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.
Metal thickness – the thinner the sheet, the weaker the hold. Magnetic flux passes through the material instead of converting into lifting capacity.
Plate material – low-carbon steel attracts best. Alloy admixtures reduce magnetic properties and lifting capacity.
Surface structure – the smoother and more polished the plate, the better the adhesion and stronger the hold. Unevenness acts like micro-gaps.
Heat – NdFeB sinters have a sensitivity to temperature. When it is hot they lose power, and in frost gain strength (up to a certain limit).

Holding force was tested on the plate surface of 20 mm thickness, when the force acted perpendicularly, in contrast under parallel forces the load capacity is reduced by as much as 75%. In addition, even a minimal clearance between the magnet and the plate lowers the load capacity.

Safety rules for work with NdFeB magnets

Bone fractures

Pinching hazard: The attraction force is so great that it can result in hematomas, crushing, and broken bones. Use thick gloves.

Dust is flammable

Machining of NdFeB material carries a risk of fire hazard. Neodymium dust oxidizes rapidly with oxygen and is hard to extinguish.

Thermal limits

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

Pacemakers

Health Alert: Strong magnets can deactivate pacemakers and defibrillators. Stay away if you have medical devices.

Respect the power

Be careful. Rare earth magnets act from a long distance and connect with huge force, often faster than you can react.

Protect data

Do not bring magnets close to a purse, laptop, or screen. The magnetism can irreversibly ruin these devices and erase data from cards.

Precision electronics

GPS units and mobile phones are extremely susceptible to magnetism. Close proximity with a powerful NdFeB magnet can permanently damage the internal compass in your phone.

Risk of cracking

Protect your eyes. Magnets can fracture upon violent connection, ejecting shards into the air. Eye protection is mandatory.

Sensitization to coating

Medical facts indicate that nickel (standard magnet coating) is a strong allergen. For allergy sufferers, prevent touching magnets with bare hands and opt for coated magnets.

Danger to the youngest

Absolutely keep magnets away from children. Risk of swallowing is high, and the effects of magnets connecting inside the body are very dangerous.

Safety First! More info about hazards in the article: Magnet Safety Guide.

MPL 40x18x10 / N38 - lamellar magnet

Technical details - MPL 40x18x10 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering simulation of the magnet - data

Table 1: Static pull force (pull vs distance) - power drop MPL 40x18x10 / N38

Table 2: Sliding force (vertical surface) MPL 40x18x10 / N38

Table 3: Wall mounting (sliding) - behavior on slippery surfaces MPL 40x18x10 / N38

Table 4: Material efficiency (substrate influence) - power losses MPL 40x18x10 / N38

Table 5: Thermal resistance (material behavior) - power drop MPL 40x18x10 / N38

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

Table 7: Safety (HSE) (electronics) - precautionary measures MPL 40x18x10 / N38

Table 8: Impact energy (cracking risk) - collision effects MPL 40x18x10 / N38

Table 9: Anti-corrosion coating durability MPL 40x18x10 / N38

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

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

1. Wall mount (shear)

2. Plate thickness effect

3. Heat tolerance

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

Elemental analysis

Sustainability

Force (pull)

Magnetic Induction

Other deals

UMS 42x12.5x6.5x9 / N38 - conical magnetic holder

MW 33x10 / N38 - cylindrical magnet

UMC 60x9/5x15 / N38 - cylindrical magnetic holder

MW 8x20 / N38 - cylindrical magnet

Strengths as well as weaknesses of rare earth magnets.

Pros

Disadvantages

Pull force analysis

Maximum lifting force for a neodymium magnet – what it depends on?

Lifting capacity in real conditions – factors

Safety rules for work with NdFeB magnets

Bone fractures

Dust is flammable

Thermal limits

Pacemakers

Respect the power

Protect data

Precision electronics

Risk of cracking

Sensitization to coating

Danger to the youngest

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (pull vs distance) - power drop
MPL 40x18x10 / N38

Table 2: Sliding force (vertical surface)
MPL 40x18x10 / N38

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MPL 40x18x10 / N38

Table 4: Material efficiency (substrate influence) - power losses
MPL 40x18x10 / N38

Table 5: Thermal resistance (material behavior) - power drop
MPL 40x18x10 / N38

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

Table 7: Safety (HSE) (electronics) - precautionary measures
MPL 40x18x10 / N38

Table 8: Impact energy (cracking risk) - collision effects
MPL 40x18x10 / N38

Table 9: Anti-corrosion coating durability
MPL 40x18x10 / N38

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

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