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MPL 40x40x15 / 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 020161

GTIN/EAN: 5906301811671

5.00

length

40 mm [±0,1 mm]

Width

40 mm [±0,1 mm]

Height

15 mm [±0,1 mm]

Weight

180 g

Magnetization Direction

↑ axial

Load capacity

46.94 kg / 460.51 N

Magnetic Induction

345.80 mT / 3458 Gs

Coating

[NiCuNi] Nickel

technical specifications »

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Technical of the product - MPL 40x40x15 / N38 - lamellar magnet

Specification / characteristics - MPL 40x40x15 / N38 - lamellar magnet

properties

properties	values
Cat. no.	020161
GTIN/EAN	5906301811671
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	40 mm [±0,1 mm]
Height	15 mm [±0,1 mm]
Weight	180 g
Magnetization Direction	↑ axial
Load capacity ~ ?	46.94 kg / 460.51 N
Magnetic Induction ~ ?	345.80 mT / 3458 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 40x40x15 / 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 analysis of the assembly - data

The following information are the result of a mathematical simulation. Values were calculated on models for the class Nd₂Fe₁₄B. Actual performance may differ from theoretical values. Treat these calculations as a preliminary roadmap when designing systems.

Table 1: Static pull force (force vs gap) - power drop
MPL 40x40x15 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	3458 Gs 345.8 mT	46.94 kg / 103.48 pounds 46940.0 g / 460.5 N	critical level
1 mm	3333 Gs 333.3 mT	43.62 kg / 96.16 pounds 43616.1 g / 427.9 N	critical level
2 mm	3199 Gs 319.9 mT	40.19 kg / 88.60 pounds 40189.1 g / 394.3 N	critical level
3 mm	3060 Gs 306.0 mT	36.77 kg / 81.06 pounds 36767.3 g / 360.7 N	critical level
5 mm	2773 Gs 277.3 mT	30.19 kg / 66.55 pounds 30187.9 g / 296.1 N	critical level
10 mm	2078 Gs 207.8 mT	16.95 kg / 37.37 pounds 16950.2 g / 166.3 N	critical level
15 mm	1507 Gs 150.7 mT	8.91 kg / 19.65 pounds 8913.7 g / 87.4 N	medium risk
20 mm	1085 Gs 108.5 mT	4.62 kg / 10.19 pounds 4622.3 g / 45.3 N	medium risk
30 mm	580 Gs 58.0 mT	1.32 kg / 2.92 pounds 1322.9 g / 13.0 N	low risk
50 mm	204 Gs 20.4 mT	0.16 kg / 0.36 pounds 164.0 g / 1.6 N	low risk

Magnetic force decreases significantly per each millimeter of spacing. Note that even a microscopic distance (e.g., contamination, paint, veneer) strongly diminishes the holding power. Magnets work most effectively in perfect adhesion; gap kills the power. See how flashily the parameters drop, when the product does not adhere directly to the steel surface. When calculating the mounting, avoid additional spacers.

Table 2: Sliding load (vertical surface)
MPL 40x40x15 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	9.39 kg / 20.70 pounds 9388.0 g / 92.1 N
1 mm	Stal (~0.2)	8.72 kg / 19.23 pounds 8724.0 g / 85.6 N
2 mm	Stal (~0.2)	8.04 kg / 17.72 pounds 8038.0 g / 78.9 N
3 mm	Stal (~0.2)	7.35 kg / 16.21 pounds 7354.0 g / 72.1 N
5 mm	Stal (~0.2)	6.04 kg / 13.31 pounds 6038.0 g / 59.2 N
10 mm	Stal (~0.2)	3.39 kg / 7.47 pounds 3390.0 g / 33.3 N
15 mm	Stal (~0.2)	1.78 kg / 3.93 pounds 1782.0 g / 17.5 N
20 mm	Stal (~0.2)	0.92 kg / 2.04 pounds 924.0 g / 9.1 N
30 mm	Stal (~0.2)	0.26 kg / 0.58 pounds 264.0 g / 2.6 N
50 mm	Stal (~0.2)	0.03 kg / 0.07 pounds 32.0 g / 0.3 N

The table below shows the approximate holding capacity sufficient to cause the slippage of the magnet downwards against a vertical steel wall (considering typical friction coefficient). The holding force is a function of the gap size between the magnet and the surface.

Table 3: Wall mounting (sliding) - vertical pull
MPL 40x40x15 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	14.08 kg / 31.05 pounds 14082.0 g / 138.1 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	9.39 kg / 20.70 pounds 9388.0 g / 92.1 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	4.69 kg / 10.35 pounds 4694.0 g / 46.0 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	23.47 kg / 51.74 pounds 23470.0 g / 230.2 N

When mounting a holder on a vertical surface (e.g., a board), it will only hold barely approx. 20%-30% of its maximum pull force. Gravity and a weak degree of grip influence the fact that magnets slip easier than they detach. Want to create a vertical fastening? Remember that the sliding force is noticeably lower than the perpendicular breakaway force. On a painted metal, the magnet will give way down under a significantly smaller cargo. Utilizing a rubberized pad can drastically increase the grip.

Table 4: Steel thickness (saturation) - power losses
MPL 40x40x15 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	5%	2.35 kg / 5.17 pounds 2347.0 g / 23.0 N
1 mm	13%	5.87 kg / 12.94 pounds 5867.5 g / 57.6 N
2 mm	25%	11.74 kg / 25.87 pounds 11735.0 g / 115.1 N
3 mm	38%	17.60 kg / 38.81 pounds 17602.5 g / 172.7 N
5 mm	63%	29.34 kg / 64.68 pounds 29337.5 g / 287.8 N
10 mm	100%	46.94 kg / 103.48 pounds 46940.0 g / 460.5 N
11 mm	100%	46.94 kg / 103.48 pounds 46940.0 g / 460.5 N
12 mm	100%	46.94 kg / 103.48 pounds 46940.0 g / 460.5 N

A too thin steel is not enough to conduct the full magnetic flux, which squanders power of the holder. If you attach a powerful product to a thin surface, the flux will pass right through and the attraction force will be weaker. To utilize the maximum of this neodymium's potential, you need a suitably thick piece of metal. The material oversaturation means that on sheet metal structures (e.g., thin profiles), the holder shows lower pull force. We suggest choosing the steel thickness based on the following data.

Table 5: Thermal stability (material behavior) - resistance threshold
MPL 40x40x15 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	46.94 kg / 103.48 pounds 46940.0 g / 460.5 N	OK
40 °C	-2.2%	45.91 kg / 101.21 pounds 45907.3 g / 450.4 N	OK
60 °C	-4.4%	44.87 kg / 98.93 pounds 44874.6 g / 440.2 N
80 °C	-6.6%	43.84 kg / 96.65 pounds 43842.0 g / 430.1 N
100 °C	-28.8%	33.42 kg / 73.68 pounds 33421.3 g / 327.9 N

Ordinary NdFeB products change their properties power past the thermal threshold. Watch out for overheating – heat can irreversibly demagnetize this magnet. As the temperature rises, the neodymium's power temporarily lowers. Avoid using this magnet close to ovens higher than its safe range. Too high temperature will result in irreversible degradation of magnetic properties.

*Technical advisory: Heat tolerance is determined by both grade, as well as the dimension ratios. Thin magnets (pancake types) are more susceptible to demagnetization sooner than taller cylinders. The danger warning in the table signals a risk of irreversible loss for this particular item.

Table 6: Magnet-Magnet interaction (attraction) - field collision
MPL 40x40x15 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Strength (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	117.92 kg / 259.97 pounds 4 963 Gs	17.69 kg / 39.00 pounds 17688 g / 173.5 N	N/A
1 mm	113.82 kg / 250.94 pounds 6 794 Gs	17.07 kg / 37.64 pounds 17074 g / 167.5 N	102.44 kg / 225.84 pounds ~0 Gs
2 mm	109.57 kg / 241.57 pounds 6 666 Gs	16.44 kg / 36.23 pounds 16436 g / 161.2 N	98.62 kg / 217.41 pounds ~0 Gs
3 mm	105.28 kg / 232.10 pounds 6 534 Gs	15.79 kg / 34.81 pounds 15792 g / 154.9 N	94.75 kg / 208.89 pounds ~0 Gs
5 mm	96.65 kg / 213.08 pounds 6 261 Gs	14.50 kg / 31.96 pounds 14498 g / 142.2 N	86.99 kg / 191.77 pounds ~0 Gs
10 mm	75.84 kg / 167.19 pounds 5 546 Gs	11.38 kg / 25.08 pounds 11376 g / 111.6 N	68.25 kg / 150.47 pounds ~0 Gs
20 mm	42.58 kg / 93.88 pounds 4 155 Gs	6.39 kg / 14.08 pounds 6387 g / 62.7 N	38.32 kg / 84.49 pounds ~0 Gs
50 mm	6.12 kg / 13.49 pounds 1 575 Gs	0.92 kg / 2.02 pounds 918 g / 9.0 N	5.51 kg / 12.14 pounds ~0 Gs
60 mm	3.32 kg / 7.33 pounds 1 161 Gs	0.50 kg / 1.10 pounds 499 g / 4.9 N	2.99 kg / 6.59 pounds ~0 Gs
70 mm	1.87 kg / 4.12 pounds 871 Gs	0.28 kg / 0.62 pounds 281 g / 2.8 N	1.68 kg / 3.71 pounds ~0 Gs
80 mm	1.09 kg / 2.41 pounds 665 Gs	0.16 kg / 0.36 pounds 164 g / 1.6 N	0.98 kg / 2.17 pounds ~0 Gs
90 mm	0.66 kg / 1.46 pounds 517 Gs	0.10 kg / 0.22 pounds 99 g / 1.0 N	0.59 kg / 1.31 pounds ~0 Gs
100 mm	0.41 kg / 0.91 pounds 409 Gs	0.06 kg / 0.14 pounds 62 g / 0.6 N	0.37 kg / 0.82 pounds ~0 Gs

Two magnets attract each other from a much further distance than a magnet and steel combination. Such a system of magnet-to-magnet produces a massive flux and a wider radius of action. Designing a strong closure? Use a pair of magnets instead of a neodymium and a steel. Be careful that when bringing together two magnets, the pinch force is massive. The levitation is marginally weaker than the connection force, but still impressive.
*Field value in repulsion mode is approximately ~0 Gs in the exact middle of the gap (resulting from vector opposition).
* Figures show shear force of a pair of identical neodymium magnets (friction coefficient ~0.15 for Ni-Ni plating).

Table 7: Hazards (electronics) - warnings
MPL 40x40x15 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	20.5 cm
Hearing aid	10 Gs (1.0 mT)	16.0 cm
Timepiece	20 Gs (2.0 mT)	12.5 cm
Phone / Smartphone	40 Gs (4.0 mT)	10.0 cm
Remote	50 Gs (5.0 mT)	9.0 cm
Payment card	400 Gs (40.0 mT)	4.0 cm
HDD hard drive	600 Gs (60.0 mT)	3.0 cm

A strong magnetic field is a serious hazard to electronics as well as medical implants. These NdFeB products generate a flux that disrupts operation of sensitive medical devices. Remember: the unseen radiation acts through matter and glass. Special caution must be exercised by people with cochlear implants and drug dispensers. Also at risk are: automatic timepieces, car keys, membranes, and displays. Do not bring the product near payment cards, hard drives, or sensitive navigation tools.

Table 8: Impact energy (kinetic energy) - warning
MPL 40x40x15 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	19.62 km/h (5.45 m/s)	2.67 J
30 mm	28.70 km/h (7.97 m/s)	5.72 J
50 mm	36.50 km/h (10.14 m/s)	9.25 J
100 mm	51.50 km/h (14.31 m/s)	18.42 J

NdFeB products are very brittle – a violent impact against metal causes immediate chipping. Pay attention to connection velocity – a magnet released freely turns into a projectile. Striking energy can cause material chips or painful pinches to fingers. Be sure to control the product during installation so it doesn't slam with momentum against the metal. A contact at a velocity of dozens of km/h means shattering of the magnet. Use safety goggles when working with powerful specimens.

Table 9: Coating parameters (durability)
MPL 40x40x15 / 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)

For outdoor applications, an epoxy coating is required; standard nickel is intended for indoor use. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Construction data (Flux)
MPL 40x40x15 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	58 107 Mx	581.1 µWb
P_c Coefficient	0.43	Low (Flat)

Total magnetic flux passing through the magnet pole. Essential parameter when building generators and motors. P_c value defines the working geometry.

Table 11: Submerged application
MPL 40x40x15 / N38

Environment	Effective steel pull	Effect
Air (land)	46.94 kg	Standard
Water (riverbed)	53.75 kg (+6.81 kg buoyancy gain)	+14.5%

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

Water displaces steel, making heavy objects slightly lighter. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Wall mount (shear)

*Warning: On a vertical surface, the magnet holds only ~20% of its perpendicular strength.

2. Plate thickness effect

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

3. Temperature resistance

*For standard magnets, the critical limit is 80°C.

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.43

The chart above illustrates the magnetic characteristics of the material within the second quadrant of the hysteresis loop. The solid red line represents the demagnetization curve (material potential), while the dashed blue line is the load line based on the magnet's geometry. The P_c (Permeance Coefficient), also known as the load line slope, is a dimensionless value that describes the relationship between the magnet's shape and its magnetic stability. The intersection of these two lines (the black dot) is the operating point — it determines the actual magnetic flux density generated by the magnet in this specific configuration. A higher P_c value means the magnet is more 'slender' (tall relative to its area), resulting in a higher operating point and better resistance to irreversible demagnetization caused by external fields or temperature. A value of 0.42 is relatively low (typical for flat magnets), meaning the operating point is closer to the 'knee' of the curve — caution is advised when operating at temperatures near the maximum limit to avoid strength loss.

Technical specification and ecology

Material specification

iron (Fe)	64% – 68%
neodymium (Nd)	29% – 32%
boron (B)	1.1% – 1.2%
dysprosium (Dy)	0.5% – 2.0%
coating (Ni-Cu-Ni)	< 0.05%

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: 020161-2026

Magnet Unit Converter

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Newtons (N)

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Type a value in one of the inputs, to see all other values change in real-time.

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Model MPL 40x40x15 / N38 features a low profile and industrial pulling force, making it a perfect solution for building separators and machines. As a block magnet with high power (approx. 46.94 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.

The key to success is sliding 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 46.94 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 40x40x15 / N38 are the foundation for many industrial devices, such as magnetic separators and linear motors. Thanks to the flat surface and high force (approx. 46.94 kg), they are ideal as hidden locks in furniture making and mounting elements in automation. Their rectangular shape facilitates precise gluing into milled sockets in wood or plastic.

For mounting flat magnets MPL 40x40x15 / N38, it is best to use two-component adhesives (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 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. 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), 40 mm (width), and 15 mm (thickness). The key parameter here is the lifting capacity amounting to approximately 46.94 kg (force ~460.51 N), which, with such a flat shape, proves the high power of the material. The protective [NiCuNi] coating secures the magnet against corrosion.

Advantages as well as disadvantages of neodymium magnets.

Pros

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

They have unchanged lifting capacity, and over more than ten years their attraction force decreases symbolically – ~1% (according to theory),
They feature excellent resistance to magnetic field loss when exposed to external fields,
The use of an metallic layer of noble metals (nickel, gold, silver) causes the element to present itself better,
They show high magnetic induction at the operating surface, which improves attraction properties,
Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and are able to act (depending on the form) even at a temperature of 230°C or more...
Thanks to versatility in constructing and the ability to customize to specific needs,
Huge importance in advanced technology sectors – they serve a role in HDD drives, drive modules, medical equipment, also technologically advanced constructions.
Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Weaknesses

Problematic aspects of neodymium magnets: tips and applications.

To avoid cracks under impact, we suggest using special steel housings. Such a solution secures the magnet and simultaneously increases its durability.
When exposed to high temperature, neodymium magnets suffer a drop in strength. Often, when the temperature exceeds 80°C, their 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
When exposed to humidity, magnets usually rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation as well as corrosion.
Due to limitations in creating threads and complex shapes in magnets, we propose using a housing - magnetic holder.
Potential hazard related to microscopic parts of magnets pose a threat, in case of ingestion, which gains importance in the context of child safety. It is also worth noting that tiny parts of these magnets can be problematic in diagnostics medical in case of swallowing.
With budget limitations the cost of neodymium magnets can be a barrier,

Pull force analysis

Highest magnetic holding force – what it depends on?

The declared magnet strength concerns the peak performance, recorded under laboratory conditions, namely:

on a plate made of structural steel, perfectly concentrating the magnetic flux
whose thickness is min. 10 mm
with a surface cleaned and smooth
under conditions of ideal adhesion (surface-to-surface)
during pulling in a direction vertical to the mounting surface
at room temperature

Determinants of practical lifting force of a magnet

Real force is influenced by working environment parameters, including (from priority):

Air gap (betwixt the magnet and the plate), because even a very small distance (e.g. 0.5 mm) results in a decrease in lifting capacity by up to 50% (this also applies to varnish, corrosion or dirt).
Loading method – declared lifting capacity refers to pulling vertically. When attempting to slide, the magnet exhibits significantly lower power (typically approx. 20-30% of maximum force).
Base massiveness – too thin plate does not close the flux, causing part of the power to be lost into the air.
Chemical composition of the base – low-carbon steel gives the best results. Alloy admixtures reduce magnetic permeability and lifting capacity.
Surface condition – ground elements guarantee perfect abutment, which improves force. Rough surfaces reduce efficiency.
Operating temperature – NdFeB sinters have a negative temperature coefficient. At higher temperatures they lose power, and in frost gain strength (up to a certain limit).

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 holding force is lower. In addition, even a small distance between the magnet and the plate decreases the holding force.

Safety rules for work with neodymium magnets

Allergy Warning

Medical facts indicate that nickel (the usual finish) is a potent allergen. For allergy sufferers, refrain from touching magnets with bare hands or select coated magnets.

ICD Warning

For implant holders: Powerful magnets affect medical devices. Keep at least 30 cm distance or ask another person to work with the magnets.

Heat sensitivity

Regular neodymium magnets (grade N) undergo demagnetization when the temperature surpasses 80°C. Damage is permanent.

Adults only

Strictly store magnets away from children. Ingestion danger is significant, and the consequences of magnets clamping inside the body are very dangerous.

Handling rules

Before use, check safety instructions. Sudden snapping can destroy the magnet or injure your hand. Think ahead.

Safe distance

Do not bring magnets close to a purse, computer, or screen. The magnetism can permanently damage these devices and erase data from cards.

Risk of cracking

NdFeB magnets are ceramic materials, which means they are fragile like glass. Clashing of two magnets leads to them breaking into shards.

Hand protection

Large magnets can break fingers instantly. Under no circumstances put your hand between two strong magnets.

Fire risk

Machining of neodymium magnets carries a risk of fire risk. Magnetic powder oxidizes rapidly with oxygen and is difficult to extinguish.

Magnetic interference

Be aware: neodymium magnets produce a field that disrupts sensitive sensors. Keep a separation from your mobile, device, and navigation systems.

Security! Need more info? Read our article: Are neodymium magnets dangerous?

MPL 40x40x15 / N38 - lamellar magnet

Technical of the product - MPL 40x40x15 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical analysis of the assembly - data

Table 1: Static pull force (force vs gap) - power drop MPL 40x40x15 / N38

Table 2: Sliding load (vertical surface) MPL 40x40x15 / N38

Table 3: Wall mounting (sliding) - vertical pull MPL 40x40x15 / N38

Table 4: Steel thickness (saturation) - power losses MPL 40x40x15 / N38

Table 5: Thermal stability (material behavior) - resistance threshold MPL 40x40x15 / N38

Table 6: Magnet-Magnet interaction (attraction) - field collision MPL 40x40x15 / N38

Table 7: Hazards (electronics) - warnings MPL 40x40x15 / N38

Table 8: Impact energy (kinetic energy) - warning MPL 40x40x15 / N38

Table 9: Coating parameters (durability) MPL 40x40x15 / N38

Table 10: Construction data (Flux) MPL 40x40x15 / N38

Table 11: Submerged application MPL 40x40x15 / N38

1. Wall mount (shear)

2. Plate thickness effect

3. Temperature resistance

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

Material specification

Sustainability

Force (pull)

Magnetic Induction

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Advantages as well as disadvantages of neodymium magnets.

Pros

Weaknesses

Pull force analysis

Highest magnetic holding force – what it depends on?

Determinants of practical lifting force of a magnet

Safety rules for work with neodymium magnets

Allergy Warning

ICD Warning

Heat sensitivity

Adults only

Handling rules

Safe distance

Risk of cracking

Hand protection

Fire risk

Magnetic interference

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs gap) - power drop
MPL 40x40x15 / N38

Table 2: Sliding load (vertical surface)
MPL 40x40x15 / N38

Table 3: Wall mounting (sliding) - vertical pull
MPL 40x40x15 / N38

Table 4: Steel thickness (saturation) - power losses
MPL 40x40x15 / N38

Table 5: Thermal stability (material behavior) - resistance threshold
MPL 40x40x15 / N38

Table 6: Magnet-Magnet interaction (attraction) - field collision
MPL 40x40x15 / N38

Table 7: Hazards (electronics) - warnings
MPL 40x40x15 / N38

Table 8: Impact energy (kinetic energy) - warning
MPL 40x40x15 / N38

Table 9: Coating parameters (durability)
MPL 40x40x15 / N38

Table 10: Construction data (Flux)
MPL 40x40x15 / N38

Table 11: Submerged application
MPL 40x40x15 / N38