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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

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30.75 ZŁ with VAT / pcs + price for transport

25.00 ZŁ net + 23% VAT / pcs

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Lifting power as well as appearance of a neodymium magnet can be calculated with our online calculation tool.

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Technical parameters - 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

Physical simulation of the assembly - technical parameters

Presented values represent the outcome of a engineering calculation. Results rely on algorithms for the material Nd₂Fe₁₄B. Real-world conditions may deviate from the simulation results. Treat these data as a reference point when designing systems.

Table 1: Static pull force (force vs gap) - characteristics
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	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	medium risk
10 mm	1370 Gs 137.0 mT	3.32 kg / 7.33 pounds 3324.4 g / 32.6 N	medium risk
15 mm	833 Gs 83.3 mT	1.23 kg / 2.71 pounds 1229.0 g / 12.1 N	weak grip
20 mm	530 Gs 53.0 mT	0.50 kg / 1.10 pounds 498.1 g / 4.9 N	weak grip
30 mm	244 Gs 24.4 mT	0.11 kg / 0.23 pounds 105.3 g / 1.0 N	weak grip
50 mm	75 Gs 7.5 mT	0.01 kg / 0.02 pounds 9.9 g / 0.1 N	weak grip

Magnetic force decreases drastically with every subsequent millimeter of spacing. Note that even a very thin break (e.g., dirt, paint, rust) noticeably diminishes the holding power. Magnetic products work optimally in perfect adhesion; air break kills the force. See how rapidly the load capacity fall, when the product does not adhere tightly to the metal substrate. When designing the mounting, eliminate additional spacers.

Table 2: Slippage hold (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

This section calculates the estimated force required to cause the sliding of the magnet down on a vertical steel wall (considering standard friction coefficient). This value is relative to the air gap between the magnet and the surface.

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 holder on a upright plane (e.g., a fridge), it you can count on only about 1/5 of nominal attraction strength. Gravitational force as well as a weak degree of grip influence the fact that magnets slip faster than they pull off. Want to create a vertical fastening? Remember that the shear force is noticeably lower than the perpendicular breakaway force. On a smooth steel, the magnet will slip down under a much lighter cargo. Using a rubber layer can drastically raise the stability.

Table 4: Material efficiency (substrate influence) - sheet metal selection
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 thin metal plate is not enough to take in the full magnetic flux, which squanders power of the magnet. If you attach a powerful product to a too thin substrate, the flux will pass right through and the holding will be smaller. To squeeze the maximum of this neodymium's power, you need a suitably thick backing of steel. The material oversaturation causes that on sheet metal structures (e.g., thin profiles), the holder holds weaker. We recommend selecting the steel thickness according to the table below.

Table 5: Working in heat (stability) - 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

Standard neodymium magnets lose strength past the thermal threshold. Protect against heat – heat can irreversibly demagnetize this magnet. With every degree above norm, the magnet's force briefly lowers. Do not use this product near heat sources exceeding its operating temperature limit. Exceeding the critical threshold will cause permanent loss of magnetic properties.

*Technical advisory: Thermal stability is determined by both grade, as well as the dimension ratios. Low-profile magnets (pancake types) may lose charge permanently sooner than taller cylinders. The danger warning in the table signals permanent field degradation for this specific geometry.

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 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 magnetic products attract each other from a significantly greater distance than a magnet and steel setup. The setup of magnet-to-magnet generates a stronger field and a larger range of operation. Designing a strong closure? Apply two magnets instead of one magnet and a steel. Be careful that when connecting a pair of magnets, the collision energy is huge. 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 (due to field cancellation).
Attention: Figures demonstrate sliding force of a pair of same magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Safety (HSE) (implants) - 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
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

A strong magnetic field is a large risk to electronic devices as well as medical implants. These neodymiums generate a field that prevents correct functioning of sensitive medical devices. Be aware: the invisible magnetic field acts through matter and glass. Increased vigilance must be exercised by people with cochlear implants and drug dispensers. Influence will be felt by: automatic timepieces, remotes, membranes, and screens. Do not place the magnet near cards, HDD media, or sensitive navigation tools.

Table 8: Impact energy (cracking risk) - warning
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 strong collision with metal causes immediate chipping. Pay attention to connection velocity – a magnet released freely speeds with massive force. Striking energy can trigger coating fragments or dangerous crushing to fingers. Be sure to control the product during installation so it doesn't slam with momentum against the steel surface. A contact at a velocity of dozens of km/h means shattering of the neodymium. Use safety goggles when handling with large magnets.

Table 9: Surface protection spec
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. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Electrical 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 passing through the pole surface. Essential parameter in coil applications and motors. The P_c coefficient determines the working geometry.

Table 11: Physics of underwater searching
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: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!

Water displaces steel, making heavy objects slightly lighter. However, remember the water resistance when pulling the rope quickly.

1. Sliding resistance

*Caution: On a vertical surface, the magnet holds merely a fraction of its perpendicular strength.

2. Plate thickness effect

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

3. Power loss vs temp

*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

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

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: 020156-2026

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Component MPL 40x18x10 / N38 features a low profile and industrial 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 immediately from our warehouse in Poland. 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. Never use metal tools for prying, as the brittle NdFeB material may chip and damage your eyes.

They constitute a key element in the production of generators and material handling systems. They work great as invisible mounts under tiles, wood, or glass. Their rectangular shape facilitates precise gluing into milled sockets in wood or plastic.

For mounting flat magnets MPL 40x18x10 / N38, we recommend utilizing two-component adhesives (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. Remember to clean and degrease 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. 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 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.

Pros as well as cons of Nd₂Fe₁₄B magnets.

Pros

Besides their magnetic performance, neodymium magnets are valued for these benefits:

They virtually do not lose strength, because even after ten years the decline in efficiency is only ~1% (based on calculations),
They do not lose their magnetic properties even under external field action,
By covering with a shiny coating of gold, the element presents an aesthetic look,
The surface of neodymium magnets generates a unique magnetic field – this is one of their assets,
Thanks to resistance to high temperature, they can operate (depending on the shape) even at temperatures up to 230°C and higher...
In view of the option of flexible shaping and adaptation to custom solutions, neodymium magnets can be manufactured in a variety of geometric configurations, which makes them more universal,
Wide application in electronics industry – they find application in computer drives, drive modules, precision medical tools, and industrial machines.
Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in compact dimensions, which makes them useful in small systems

Limitations

Cons of neodymium magnets: weaknesses and usage proposals

To avoid cracks under impact, we recommend using special steel holders. Such a solution protects the magnet and simultaneously increases its durability.
Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of strength (a factor is the shape as well as dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely resistant to heat
Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material immune to moisture, in case of application outdoors
We recommend a housing - magnetic holder, due to difficulties in producing threads inside the magnet and complicated shapes.
Health risk resulting from small fragments of magnets are risky, if swallowed, which becomes key in the context of child health protection. Additionally, small components of these magnets can complicate diagnosis medical in case of swallowing.
High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which can limit application in large quantities

Pull force analysis

Maximum magnetic pulling force – what affects it?

The load parameter shown represents the peak performance, obtained under optimal environment, meaning:

using a plate made of low-carbon steel, acting as a magnetic yoke
with a cross-section no less than 10 mm
with a surface perfectly flat
without any air gap between the magnet and steel
during detachment in a direction perpendicular to the mounting surface
at room temperature

Determinants of practical lifting force of a magnet

Please note that the working load will differ influenced by elements below, in order of importance:

Space between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by veneer or unevenness) drastically reduces the pulling force, often by half at just 0.5 mm.
Loading method – catalog parameter refers to pulling vertically. When attempting to slide, the magnet exhibits significantly lower power (often approx. 20-30% of nominal force).
Wall thickness – thin material does not allow full use of the magnet. Magnetic flux penetrates through instead of converting into lifting capacity.
Material composition – not every steel reacts the same. High carbon content worsen the interaction with the magnet.
Smoothness – ideal contact is obtained only on polished steel. Any scratches and bumps reduce the real contact area, weakening the magnet.
Operating temperature – neodymium magnets have a negative temperature coefficient. When it is hot they are weaker, and at low temperatures they can be stronger (up to a certain limit).

Lifting capacity was determined with the use of a smooth steel plate of optimal thickness (min. 20 mm), under vertically applied force, whereas under attempts to slide the magnet the load capacity is reduced by as much as 5 times. In addition, even a minimal clearance between the magnet and the plate reduces the lifting capacity.

Safe handling of NdFeB magnets

GPS and phone interference

A strong magnetic field disrupts the operation of magnetometers in smartphones and GPS navigation. Maintain magnets near a smartphone to prevent breaking the sensors.

Dust explosion hazard

Powder generated during machining of magnets is flammable. Avoid drilling into magnets unless you are an expert.

Nickel coating and allergies

Some people experience a hypersensitivity to nickel, which is the common plating for neodymium magnets. Prolonged contact might lead to a rash. We recommend wear protective gloves.

Medical interference

Life threat: Neodymium magnets can turn off pacemakers and defibrillators. Stay away if you have electronic implants.

Electronic hazard

Do not bring magnets close to a wallet, computer, or screen. The magnetic field can destroy these devices and wipe information from cards.

Crushing risk

Watch your fingers. Two powerful magnets will snap together immediately with a force of several hundred kilograms, destroying anything in their path. Be careful!

Swallowing risk

Only for adults. Tiny parts can be swallowed, leading to serious injuries. Store out of reach of children and animals.

Permanent damage

Standard neodymium magnets (N-type) lose magnetization when the temperature goes above 80°C. The loss of strength is permanent.

Powerful field

Before starting, check safety instructions. Sudden snapping can destroy the magnet or hurt your hand. Be predictive.

Fragile material

Watch out for shards. Magnets can fracture upon violent connection, ejecting sharp fragments into the air. Wear goggles.

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

MPL 40x18x10 / N38 - lamellar magnet

Technical parameters - MPL 40x18x10 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical simulation of the assembly - technical parameters

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

Table 2: Slippage hold (wall) MPL 40x18x10 / N38

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

Table 4: Material efficiency (substrate influence) - sheet metal selection MPL 40x18x10 / N38

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

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

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

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

Table 9: Surface protection spec MPL 40x18x10 / N38

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

Table 11: Physics of underwater searching MPL 40x18x10 / N38

1. Sliding resistance

2. Plate thickness effect

3. Power loss vs temp

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

Chemical composition

Sustainability

Pulling force

Field Strength

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Pros as well as cons of Nd2Fe14B magnets.

Pros

Limitations

Pull force analysis

Maximum magnetic pulling force – what affects it?

Determinants of practical lifting force of a magnet

Safe handling of NdFeB magnets

GPS and phone interference

Dust explosion hazard

Nickel coating and allergies

Medical interference

Electronic hazard

Crushing risk

Swallowing risk

Permanent damage

Powerful field

Fragile material

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

Table 2: Slippage hold (wall)
MPL 40x18x10 / N38

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

Table 4: Material efficiency (substrate influence) - sheet metal selection
MPL 40x18x10 / N38

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

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

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

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

Table 9: Surface protection spec
MPL 40x18x10 / N38

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

Table 11: Physics of underwater searching
MPL 40x18x10 / N38

Pros as well as cons of Nd₂Fe₁₄B magnets.