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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

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36.29 ZŁ with VAT / pcs + price for transport

29.50 ZŁ net + 23% VAT / pcs

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Technical parameters of the product - 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

Technical analysis of the assembly - technical parameters

These information are the direct effect of a engineering analysis. Values rely on models for the material Nd₂Fe₁₄B. Operational conditions might slightly deviate from the simulation results. Use these calculations as a supplementary guide for designers.

Table 1: Static force (pull vs distance) - characteristics
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 LBS 23810.0 g / 233.6 N	critical level
1 mm	3399 Gs 339.9 mT	20.48 kg / 45.14 LBS 20476.1 g / 200.9 N	critical level
2 mm	3120 Gs 312.0 mT	17.25 kg / 38.02 LBS 17245.9 g / 169.2 N	critical level
3 mm	2841 Gs 284.1 mT	14.30 kg / 31.54 LBS 14304.1 g / 140.3 N	critical level
5 mm	2321 Gs 232.1 mT	9.55 kg / 21.05 LBS 9547.8 g / 93.7 N	medium risk
10 mm	1370 Gs 137.0 mT	3.32 kg / 7.33 LBS 3324.4 g / 32.6 N	medium risk
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

Grip strength weakens drastically with every mm of spacing. Keep in mind that even a very thin break (e.g., contamination, paint, veneer) strongly diminishes the holding power. Magnets hold optimally during direct contact; air break drastically cuts the force. Notice how rapidly the pull force plummet, when the product does not adhere directly to the steel surface. When calculating the assembly, eliminate additional spacers.

Table 2: Sliding capacity (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 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

This section indicates the estimated shear load necessary to initiate the slippage of the magnet downwards on a vertical metal surface (considering typical friction coefficient). This value depends on the separation distance between the magnet and the metal.

Table 3: Wall mounting (shearing) - vertical pull
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 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 mounting a magnet on a upright surface (e.g., a board), it will maintain barely about 20%-30% of nominal attraction strength. Gravity as well as a weak degree of grip cause that holders move down easier than they pop off the substrate. Want to create a hanger? Note that the sliding force is noticeably lower than the perpendicular breakaway force. On a slippery surface, the magnet will slide down under a much lighter load. Utilizing a rubberized layer can significantly improve the result.

Table 4: Steel thickness (substrate influence) - 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 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 take in the entire magnetic field, which squanders power of the holder. If you attach a powerful product to a weak sheet, the flux will penetrate right through and the pull force will drop sharply. To squeeze the maximum of this magnet's power, you require a sufficiently solid backing of metal. The saturation phenomenon causes that on thin elements (e.g., car bodies), the product holds weaker. We advise picking the steel dimension from these parameters.

Table 5: Thermal stability (stability) - power drop
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 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

Standard neodymium magnets change their properties power above the temperature limit. Protect against heat – high temperature can irreversibly destroy this product. With increasing heat, the magnet's power temporarily decreases. Do not use this magnet near heat sources higher than its operating temperature limit. Ignoring the limit will cause permanent loss of magnetism.

*Engineering note: Temperature resistance is determined by both grade, and the Permeance Coefficient Pc. Low-profile magnets (low permeance coefficient) are more susceptible to demagnetization at lower temperatures compared to rod magnets. The danger warning in the table signals 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)	Lateral 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 magnetic products interact from a significantly greater distance than a magnet and steel setup. The connection of magnet-to-magnet generates a stronger field and a further horizon of performance. Want to build a solid fastener? Apply two magnets instead of one magnet and a steel. Exercise caution that when connecting a pair of magnets, the pinch force is huge. The levitation is a bit weaker than the connection force, but still significant.
*The magnetic induction for N-N configuration reaches ~0 Gs at the geometric center of the gap (resulting from vector opposition).
Note: Results apply to shear force of two matching neodymium magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Hazards (electronics) - 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
Mechanical watch	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 real danger to IT equipment and pacemakers. These neodymiums generate a flux that destroys function of digital equipment. Remember: the invisible magnetic field penetrates the body and glass. Special caution must be exercised by people with hearing aids and drug dispensers. The risk also applies to: mechanical watches, car keys, membranes, and displays. Do not place the magnet near cards, hard drives, or precise measuring instruments.

Table 8: Dynamics (kinetic energy) - collision effects
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 can result in shattering. Pay attention to connection velocity – a magnet released freely becomes dangerous. Kinetic force can cause material chips or injury to fingers. Hold the magnet firmly during mounting so it doesn't hit with great force against the metal. A contact at a velocity of dozens of km/h almost guarantees destruction of the neodymium. Wear eye protection when working with large magnets.

Table 9: Coating parameters (durability)
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)

Neodymium magnets are highly susceptible to corrosion without proper protection. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Electrical 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 passing through the magnet pole. Essential parameter in coil applications as well as sensors. P_c value determines the working geometry.

Table 11: Hydrostatics and buoyancy
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%

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

In water, the magnet feels stronger thanks to Archimedes' principle. However, remember the water resistance when pulling the rope quickly.

1. Vertical hold

*Caution: On a vertical surface, the magnet holds merely approx. 20-30% of its nominal pull.

2. Plate thickness effect

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

3. Thermal stability

*For N38 material, 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

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

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: 020157-2026

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This product is a very powerful plate magnet made of NdFeB material, which, with dimensions of 40x18x10 mm and a weight of 54 g, guarantees premium class connection. As a block magnet with high power (approx. 23.81 kg), this product is available immediately from our warehouse in Poland. Additionally, its Ni-Cu-Ni coating protects it against corrosion in standard operating conditions, giving it an aesthetic appearance.

The key to success is shifting the magnets along their largest connection plane (using e.g., the edge of a table), which is easier than trying to tear them apart directly. Watch your fingers! Magnets with a force of 23.81 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 generators and material handling systems. Thanks to the flat surface and high force (approx. 23.81 kg), they are ideal as closers 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 clean and degrease the magnet surface before gluing, which significantly increases the adhesion of the glue to the nickel coating.

Standardly, the MPL 40x18x10 SH / N38 model is magnetized axially (dimension 10 mm), which means that the N and S poles are located on its largest, flat surfaces. In practice, this means that this magnet has the greatest attraction force on its main planes (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.

This model is characterized by dimensions 40x18x10 mm, which, at a weight of 54 g, makes it an element with impressive 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.

Pros and cons of neodymium magnets.

Advantages

Besides their exceptional strength, neodymium magnets offer the following advantages:

They retain attractive force for around ten years – the drop is just ~1% (based on simulations),
They do not lose their magnetic properties even under external field action,
A magnet with a metallic silver surface looks better,
They show high magnetic induction at the operating surface, which improves attraction properties,
Through (adequate) combination of ingredients, they can achieve high thermal strength, enabling operation at temperatures reaching 230°C and above...
Possibility of accurate creating as well as adapting to concrete applications,
Huge importance in electronics industry – they find application in hard drives, electric motors, advanced medical instruments, and industrial machines.
Thanks to concentrated force, small magnets offer high operating force, occupying minimum space,

Disadvantages

Disadvantages of neodymium magnets:

At strong impacts they can crack, therefore we recommend placing them in special holders. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
Neodymium magnets decrease their power under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
When exposed to humidity, magnets start to rust. To use them in conditions outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation and corrosion.
Due to limitations in creating nuts and complex forms in magnets, we propose using casing - magnetic mount.
Possible danger resulting from small fragments of magnets are risky, when accidentally swallowed, which is particularly important in the context of child health protection. Furthermore, small components of these devices are able to disrupt the diagnostic process medical in case of swallowing.
With large orders the cost of neodymium magnets is a challenge,

Pull force analysis

Highest magnetic holding force – what affects it?

The force parameter is a theoretical maximum value conducted under standard conditions:

with the application of a yoke made of low-carbon steel, ensuring full magnetic saturation
whose transverse dimension reaches at least 10 mm
with an ground touching surface
under conditions of ideal adhesion (metal-to-metal)
under perpendicular force vector (90-degree angle)
at temperature approx. 20 degrees Celsius

Key elements affecting lifting force

Bear in mind that the working load may be lower subject to elements below, starting with the most relevant:

Clearance – existence of any layer (paint, dirt, gap) interrupts the magnetic circuit, which lowers capacity rapidly (even by 50% at 0.5 mm).
Direction of force – highest force is reached only during perpendicular pulling. The shear force of the magnet along the plate is typically many times lower (approx. 1/5 of the lifting capacity).
Plate thickness – insufficiently thick sheet causes magnetic saturation, causing part of the power to be lost to the other side.
Plate material – mild steel gives the best results. Alloy steels decrease magnetic permeability and holding force.
Surface quality – the more even the surface, the larger the contact zone and stronger the hold. Unevenness creates an air distance.
Temperature – temperature increase results in weakening of force. Check the maximum operating temperature for a given model.

Holding force was checked on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, whereas under parallel forces the holding force is lower. In addition, even a minimal clearance between the magnet and the plate lowers the lifting capacity.

Warnings

ICD Warning

For implant holders: Strong magnetic fields affect medical devices. Keep minimum 30 cm distance or ask another person to work with the magnets.

Cards and drives

Avoid bringing magnets near a wallet, laptop, or screen. The magnetism can destroy these devices and erase data from cards.

Fire risk

Mechanical processing of neodymium magnets carries a risk of fire hazard. Neodymium dust reacts violently with oxygen and is difficult to extinguish.

Demagnetization risk

Control the heat. Heating the magnet above 80 degrees Celsius will ruin its properties and strength.

Do not underestimate power

Exercise caution. Rare earth magnets act from a long distance and snap with massive power, often quicker than you can react.

Keep away from electronics

Remember: rare earth magnets generate a field that interferes with precision electronics. Keep a safe distance from your phone, tablet, and GPS.

No play value

Absolutely store magnets out of reach of children. Risk of swallowing is high, and the effects of magnets connecting inside the body are very dangerous.

Nickel allergy

Certain individuals suffer from a sensitization to nickel, which is the standard coating for NdFeB magnets. Frequent touching may cause a rash. We recommend use safety gloves.

Fragile material

Neodymium magnets are sintered ceramics, which means they are prone to chipping. Collision of two magnets will cause them cracking into shards.

Bone fractures

Watch your fingers. Two large magnets will snap together immediately with a force of massive weight, crushing anything in their path. Exercise extreme caution!

Caution! Details about risks in the article: Magnet Safety Guide.

MPL 40x18x10 SH / N38 - lamellar magnet

Technical parameters of the product - MPL 40x18x10 SH / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical analysis of the assembly - technical parameters

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

Table 2: Sliding capacity (wall) MPL 40x18x10 SH / N38

Table 3: Wall mounting (shearing) - vertical pull MPL 40x18x10 SH / N38

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

Table 5: Thermal stability (stability) - power drop MPL 40x18x10 SH / N38

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

Table 7: Hazards (electronics) - precautionary measures MPL 40x18x10 SH / N38

Table 8: Dynamics (kinetic energy) - collision effects MPL 40x18x10 SH / N38

Table 9: Coating parameters (durability) MPL 40x18x10 SH / N38

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

Table 11: Hydrostatics and buoyancy MPL 40x18x10 SH / N38

1. Vertical hold

2. Plate thickness effect

3. Thermal stability

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

Chemical composition

Sustainability

Pulling force

Magnetic Induction

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Pros and cons of neodymium magnets.

Advantages

Disadvantages

Pull force analysis

Highest magnetic holding force – what affects it?

Key elements affecting lifting force

Warnings

ICD Warning

Cards and drives

Fire risk

Demagnetization risk

Do not underestimate power

Keep away from electronics

No play value

Nickel allergy

Fragile material

Bone fractures

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

Table 2: Sliding capacity (wall)
MPL 40x18x10 SH / N38

Table 3: Wall mounting (shearing) - vertical pull
MPL 40x18x10 SH / N38

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

Table 5: Thermal stability (stability) - power drop
MPL 40x18x10 SH / N38

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

Table 7: Hazards (electronics) - precautionary measures
MPL 40x18x10 SH / N38

Table 8: Dynamics (kinetic energy) - collision effects
MPL 40x18x10 SH / N38

Table 9: Coating parameters (durability)
MPL 40x18x10 SH / N38

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

Table 11: Hydrostatics and buoyancy
MPL 40x18x10 SH / N38