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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

see properties »

30.75 ZŁ with VAT / pcs + price for transport

25.00 ZŁ net + 23% VAT / pcs

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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

Technical modeling of the product - report

These information constitute the result of a mathematical analysis. Results rely on models for the material Nd₂Fe₁₄B. Real-world conditions may differ. Please consider these calculations as a preliminary roadmap for designers.

Table 1: Static force (pull vs gap) - 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 pounds 23810.0 g / 233.6 N	critical level
1 mm	3399 Gs 339.9 mT	20.48 kg / 45.14 pounds 20476.1 g / 200.9 N	critical level
2 mm	3120 Gs 312.0 mT	17.25 kg / 38.02 pounds 17245.9 g / 169.2 N	critical level
3 mm	2841 Gs 284.1 mT	14.30 kg / 31.54 pounds 14304.1 g / 140.3 N	critical level
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	low risk
20 mm	530 Gs 53.0 mT	0.50 kg / 1.10 pounds 498.1 g / 4.9 N	low risk
30 mm	244 Gs 24.4 mT	0.11 kg / 0.23 pounds 105.3 g / 1.0 N	low risk
50 mm	75 Gs 7.5 mT	0.01 kg / 0.02 pounds 9.9 g / 0.1 N	low risk

Pulling power weakens sharply with every subsequent millimeter of gap. Note that every additional insulation layer (e.g., contamination, paint, veneer) strongly weakens the grip. Neodymiums hold most effectively during direct contact; gap nullifies the force. Notice how rapidly the parameters plummet, when the magnet does not adhere directly to the metal substrate. When designing the assembly, avoid additional spacers.

Table 2: Shear force (wall)
MPL 40x18x10 / 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 calculates the approximate holding capacity needed to start the sliding of the magnet down along a vertical steel plate (considering standard friction). This value is a function of the air gap between the magnet and the metal.

Table 3: Vertical assembly (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 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 magnet on a vertical wall (e.g., a board), it you can count on just approx. 20%-30% of its maximum pull force. Gravitational force as well as a weak degree of grip influence the fact that holders move down easier than they pull off. Designing a hanger? Note that the shear force is noticeably lower than the maximum static pull force. On a slippery surface, the magnet will slide down under a much lighter load. Application of an anti-slip pad can significantly improve the result.

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 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 too thin steel is incapable of focus the full magnetic flux, which wastes potential of the holder. If you install a neodymium to a weak sheet, the flux will pass right through and the holding will be smaller. To squeeze the maximum of this neodymium's potential, you need a suitably thick backing of metal. The saturation phenomenon causes that on thin elements (e.g., car bodies), the holder shows lower pull force. We recommend selecting the steel thickness according to the table below.

Table 5: Working in heat (material behavior) - thermal limit
MPL 40x18x10 / 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 strength above the temperature limit. Avoid high temperatures – high temperature can irreversibly demagnetize this magnet. With increasing heat, the neodymium's force momentarily drops. Avoid using this product close to ovens exceeding its working range. Exceeding the critical threshold will lead to irreversible degradation of magnetic properties.

*Engineering note: Heat tolerance depends not only on the material grade, but also on the magnet's shape. Flat magnets (pancake types) risk losing magnetic properties under lower heat stress than long magnets. The danger warning in the table indicates a risk of irreversible loss for this particular item.

Table 6: Two magnets (repulsion) - forces in the system
MPL 40x18x10 / 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 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 attract each other from a significantly greater distance than a magnet and sheet setup. The connection of magnet-to-magnet creates a more powerful interaction and a larger range of performance. Designing a solid fastener? Apply two magnets instead of a neodymium and a striker plate. Remember that when connecting a pair of magnets, the impact force is massive. The repulsion force is a bit weaker than the connection force, but still large.
*Field value for N-N configuration is approximately ~0 Gs at the geometric center between the magnets (caused by magnetic field nullification).
Important: Results refer to sliding force of two identical magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Protective zones (electronics) - warnings
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
Mechanical watch	20 Gs (2.0 mT)	8.5 cm
Mobile device	40 Gs (4.0 mT)	6.5 cm
Remote	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 serious hazard to electronics as well as pacemakers. These magnets produce a flux that disrupts operation of sensitive medical devices. Remember: the unseen radiation acts through matter and housings. Special caution must be exercised by people with cochlear implants and drug dispensers. Influence will be felt by: automatic timepieces, car keys, membranes, and displays. 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

Magnetic elements are prone to chipping – a violent impact against metal can result in shattering. Pay attention to connection velocity – a magnet released freely becomes dangerous. Kinetic force can destroy the magnet or painful pinches to skin. Always hold the magnet during installation so it doesn't hit violently against the metal. A contact at a velocity of dozens of km/h ends with a crack of the neodymium. Wear safety glasses when playing with powerful specimens.

Table 9: Corrosion resistance
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)

Neodymium magnets are highly susceptible to corrosion without proper protection. Note the thickness of the protective layer.

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)

Flux value emitted by the magnet pole. Essential parameter in coil applications as well as sensors. P_c value defines the working geometry.

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%

Rust risk: 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. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Sliding resistance

*Warning: On a vertical wall, the magnet holds only a fraction of its perpendicular strength.

2. Efficiency vs thickness

*Thin metal sheet (e.g. computer case) drastically weakens the holding force.

3. Thermal stability

*For N38 grade, the max working temp 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.

Engineering data and GPSR

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%

Environmental data

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

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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. The durable anti-corrosion layer ensures a long lifespan in a dry environment, protecting the core from oxidation.

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. Using a screwdriver risks destroying the coating and permanently cracking the magnet.

They constitute a key element in the production of wind generators and material handling systems. 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. Their rectangular shape facilitates precise gluing into milled sockets in wood or plastic.

For mounting flat magnets MPL 40x18x10 / 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.

The magnetic axis runs through the shortest dimension, which is typical for gripper magnets. Thanks to this, it works best when "sticking" to sheet metal or another magnet with a large surface area. This is the most popular configuration for block magnets used in separators and holders.

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 holding force amounting to approximately 23.81 kg (force ~233.58 N), which, with such a flat shape, proves the high power of the material. The product meets the standards for N38 grade magnets.

Advantages as well as disadvantages of neodymium magnets.

Strengths

Apart from their superior holding force, neodymium magnets have these key benefits:

They virtually do not lose power, because even after ten years the decline in efficiency is only ~1% (in laboratory conditions),
They are extremely resistant to demagnetization induced by external field influence,
A magnet with a metallic gold surface is more attractive,
The surface of neodymium magnets generates a intense magnetic field – this is a distinguishing feature,
Through (appropriate) combination of ingredients, they can achieve high thermal strength, enabling action at temperatures reaching 230°C and above...
Thanks to modularity in designing and the capacity to modify to individual projects,
Versatile presence in advanced technology sectors – they are commonly used in computer drives, electric motors, diagnostic systems, as well as technologically advanced constructions.
Relatively small size with high pulling force – neodymium magnets offer high power in compact dimensions, which enables their usage in miniature devices

Limitations

Disadvantages of NdFeB magnets:

Brittleness is one of their disadvantages. Upon intense impact they can break. We recommend keeping them in a strong case, which not only secures them against impacts but also raises their durability
When exposed to high temperature, neodymium magnets suffer a drop in strength. Often, when the temperature exceeds 80°C, their strength 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 suggest using waterproof magnets made of rubber, plastic or other material immune to moisture, when using outdoors
We recommend casing - magnetic holder, due to difficulties in producing threads inside the magnet and complicated shapes.
Possible danger related to microscopic parts of magnets pose a threat, if swallowed, which is particularly important in the context of child health protection. Furthermore, small components of these products are able to be problematic in diagnostics medical after entering the body.
With budget limitations the cost of neodymium magnets is a challenge,

Lifting parameters

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

The lifting capacity listed is a result of laboratory testing performed under the following configuration:

on a plate made of mild steel, optimally conducting the magnetic field
possessing a thickness of min. 10 mm to avoid saturation
characterized by smoothness
under conditions of no distance (surface-to-surface)
during detachment in a direction perpendicular to the plane
in temp. approx. 20°C

Magnet lifting force in use – key factors

Bear in mind that the working load may be lower subject to elements below, in order of importance:

Distance – the presence of any layer (rust, dirt, air) interrupts the magnetic circuit, which reduces power steeply (even by 50% at 0.5 mm).
Force direction – declared lifting capacity refers to pulling vertically. When applying parallel force, the magnet exhibits significantly lower power (often approx. 20-30% of maximum force).
Base massiveness – too thin steel causes magnetic saturation, causing part of the power to be lost into the air.
Material composition – different alloys reacts the same. High carbon content worsen the interaction with the magnet.
Surface structure – the more even the surface, the larger the contact zone and higher the lifting capacity. Roughness creates an air distance.
Temperature – temperature increase results in weakening of force. It is worth remembering the maximum operating temperature for a given model.

Lifting capacity testing was conducted on a smooth plate of suitable thickness, under a perpendicular pulling force, however under attempts to slide the magnet the load capacity is reduced by as much as fivefold. Additionally, even a minimal clearance between the magnet and the plate lowers the lifting capacity.

Safety rules for work with neodymium magnets

Magnets are brittle

Beware of splinters. Magnets can fracture upon uncontrolled impact, ejecting shards into the air. We recommend safety glasses.

Safe operation

Exercise caution. Neodymium magnets act from a long distance and connect with massive power, often faster than you can react.

Do not drill into magnets

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

Impact on smartphones

A strong magnetic field disrupts the operation of magnetometers in smartphones and GPS navigation. Keep magnets close to a device to avoid breaking the sensors.

Warning for allergy sufferers

It is widely known that nickel (standard magnet coating) is a strong allergen. If your skin reacts to metals, refrain from direct skin contact and choose versions in plastic housing.

Electronic devices

Powerful magnetic fields can corrupt files on payment cards, HDDs, and other magnetic media. Stay away of at least 10 cm.

Pacemakers

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

Bone fractures

Large magnets can break fingers instantly. Do not place your hand between two strong magnets.

Adults only

Absolutely keep magnets away from children. Choking hazard is significant, and the effects of magnets connecting inside the body are fatal.

Power loss in heat

Watch the temperature. Heating the magnet above 80 degrees Celsius will ruin its properties and strength.

Caution! Need more info? Check our post: Are neodymium magnets dangerous?

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

Technical modeling of the product - report

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

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

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

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

Table 5: Working in heat (material behavior) - thermal limit MPL 40x18x10 / N38

Table 6: Two magnets (repulsion) - forces in the system MPL 40x18x10 / N38

Table 7: Protective zones (electronics) - warnings MPL 40x18x10 / N38

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

Table 9: Corrosion resistance MPL 40x18x10 / N38

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

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

1. Sliding resistance

2. Efficiency vs thickness

3. Thermal stability

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

Material specification

Environmental data

Force (pull)

Magnetic Field

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Advantages as well as disadvantages of neodymium magnets.

Strengths

Limitations

Lifting parameters

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

Magnet lifting force in use – key factors

Safety rules for work with neodymium magnets

Magnets are brittle

Safe operation

Do not drill into magnets

Impact on smartphones

Warning for allergy sufferers

Electronic devices

Pacemakers

Bone fractures

Adults only

Power loss in heat

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

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

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

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

Table 5: Working in heat (material behavior) - thermal limit
MPL 40x18x10 / N38

Table 6: Two magnets (repulsion) - forces in the system
MPL 40x18x10 / N38

Table 7: Protective zones (electronics) - warnings
MPL 40x18x10 / N38

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

Table 9: Corrosion resistance
MPL 40x18x10 / N38

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

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