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MPL 40x5x3 / N38 - lamellar magnet

Name: Dhit sp. z o.o.
Address: Kościuszki 6A, Ożarów Mazowiecki, mazowieckie, 05-850, PL
Telephone: +48 22 499 98 98
Price range: 1-6500 PLN
Rating: 5

lamellar magnet

Catalog no 020402

GTIN/EAN: 5906301811916

length

40 mm [±0,1 mm]

Width

5 mm [±0,1 mm]

Height

3 mm [±0,1 mm]

Weight

4.5 g

Magnetization Direction

↑ axial

Load capacity

7.33 kg / 71.91 N

Magnetic Induction

348.83 mT / 3488 Gs

Coating

[NiCuNi] Nickel

technical parameters »

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Engineering report for this magnet

Full PDF analysis: pull and shear force, effect of distance, temperature and plate thickness, safety distances and the demagnetization curve.

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Technical details - MPL 40x5x3 / N38 - lamellar magnet

Specification / characteristics - MPL 40x5x3 / N38 - lamellar magnet

properties

properties	values
Cat. no.	020402
GTIN/EAN	5906301811916
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	5 mm [±0,1 mm]
Height	3 mm [±0,1 mm]
Weight	4.5 g
Magnetization Direction	↑ axial
Load capacity ~ ?	7.33 kg / 71.91 N
Magnetic Induction ~ ?	348.83 mT / 3488 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 40x5x3 / 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 assembly - report

The following values constitute the direct effect of a mathematical simulation. Results were calculated on models for the material Nd₂Fe₁₄B. Operational conditions might slightly differ. Treat these calculations as a reference point for designers.

Table 1: Static force (force vs gap) - characteristics
MPL 40x5x3 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	3485 Gs 348.5 mT	7.33 kg / 16.16 LBS 7330.0 g / 71.9 N	strong
1 mm	2529 Gs 252.9 mT	3.86 kg / 8.51 LBS 3859.9 g / 37.9 N	strong
2 mm	1741 Gs 174.1 mT	1.83 kg / 4.03 LBS 1829.7 g / 17.9 N	safe
3 mm	1217 Gs 121.7 mT	0.89 kg / 1.97 LBS 893.7 g / 8.8 N	safe
5 mm	664 Gs 66.4 mT	0.27 kg / 0.59 LBS 265.9 g / 2.6 N	safe
10 mm	235 Gs 23.5 mT	0.03 kg / 0.07 LBS 33.5 g / 0.3 N	safe
15 mm	116 Gs 11.6 mT	0.01 kg / 0.02 LBS 8.2 g / 0.1 N	safe
20 mm	67 Gs 6.7 mT	0.00 kg / 0.01 LBS 2.7 g / 0.0 N	safe
30 mm	27 Gs 2.7 mT	0.00 kg / 0.00 LBS 0.5 g / 0.0 N	safe
50 mm	8 Gs 0.8 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	safe

Pulling power decreases drastically with every mm of distance. Note that every additional insulation layer (e.g., dirt, paint, dust) significantly weakens the grip. Magnets hold optimally at the point of direct contact; air break drastically cuts the force. Observe how quickly the parameters plummet, when the magnet does not touch directly to the metal substrate. When calculating the assembly, discard redundant distances.

Table 2: Vertical force (vertical surface)
MPL 40x5x3 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	1.47 kg / 3.23 LBS 1466.0 g / 14.4 N
1 mm	Stal (~0.2)	0.77 kg / 1.70 LBS 772.0 g / 7.6 N
2 mm	Stal (~0.2)	0.37 kg / 0.81 LBS 366.0 g / 3.6 N
3 mm	Stal (~0.2)	0.18 kg / 0.39 LBS 178.0 g / 1.7 N
5 mm	Stal (~0.2)	0.05 kg / 0.12 LBS 54.0 g / 0.5 N
10 mm	Stal (~0.2)	0.01 kg / 0.01 LBS 6.0 g / 0.1 N
15 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 2.0 g / 0.0 N
20 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 0.0 g / 0.0 N
30 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 0.0 g / 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 0.0 g / 0.0 N

The table below calculates the estimated force needed to start the shifting of the magnet vertically on a upright steel wall (assuming standard friction). This parameter varies with the air gap between the magnet and the surface.

Table 3: Vertical assembly (shearing) - vertical pull
MPL 40x5x3 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	2.20 kg / 4.85 LBS 2199.0 g / 21.6 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	1.47 kg / 3.23 LBS 1466.0 g / 14.4 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.73 kg / 1.62 LBS 733.0 g / 7.2 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	3.67 kg / 8.08 LBS 3665.0 g / 36.0 N

When mounting a element on a upright surface (e.g., a car body), it will maintain only approx. 20%-30% of its nominal power. Gravity and a weak degree of grip mean that products slide down easier than they pull off. Planning a wall mount? Consider that the sliding force is significantly lower than the perpendicular breakaway force. On a painted metal, the holder will give way down under a much lighter load. Application of an anti-slip coating can drastically increase the grip.

Table 4: Material efficiency (substrate influence) - sheet metal selection
MPL 40x5x3 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.73 kg / 1.62 LBS 733.0 g / 7.2 N
1 mm	25%	1.83 kg / 4.04 LBS 1832.5 g / 18.0 N
2 mm	50%	3.67 kg / 8.08 LBS 3665.0 g / 36.0 N
3 mm	75%	5.50 kg / 12.12 LBS 5497.5 g / 53.9 N
5 mm	100%	7.33 kg / 16.16 LBS 7330.0 g / 71.9 N
10 mm	100%	7.33 kg / 16.16 LBS 7330.0 g / 71.9 N
11 mm	100%	7.33 kg / 16.16 LBS 7330.0 g / 71.9 N
12 mm	100%	7.33 kg / 16.16 LBS 7330.0 g / 71.9 N

A thin sheet is incapable of absorb the entire magnetic field, which weakens actual performance of the holder. Should you attach a powerful product to a thin surface, the magnetism will penetrate right through and the attraction force will be weaker. To achieve the maximum of this neodymium's power, you require a sufficiently solid piece of steel. The saturation phenomenon means that on delicate walls (e.g., car bodies), the product shows lower pull force. We suggest choosing the steel dimension based on the following data.

Table 5: Thermal resistance (stability) - thermal limit
MPL 40x5x3 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	7.33 kg / 16.16 LBS 7330.0 g / 71.9 N	OK
40 °C	-2.2%	7.17 kg / 15.80 LBS 7168.7 g / 70.3 N	OK
60 °C	-4.4%	7.01 kg / 15.45 LBS 7007.5 g / 68.7 N
80 °C	-6.6%	6.85 kg / 15.09 LBS 6846.2 g / 67.2 N
100 °C	-28.8%	5.22 kg / 11.51 LBS 5219.0 g / 51.2 N

Standard neodymium magnets change their properties power after exceeding the maximum temperature. Watch out for overheating – heat can irreversibly demagnetize this product. With increasing heat, the neodymium's power momentarily lowers. Refrain from using this product in hot environments exceeding its working range. Too high temperature will lead to irreversible degradation of magnetism.

*Important note: Heat tolerance is determined by both grade, and the Permeance Coefficient Pc. Thin magnets (low Pc) may lose charge permanently at lower temperatures compared to rod magnets. Warning indicator in the table points to a risk of irreversible loss for this particular item.

Table 6: Two magnets (repulsion) - forces in the system
MPL 40x5x3 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Sliding Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	14.97 kg / 33.01 LBS 4 697 Gs	2.25 kg / 4.95 LBS 2246 g / 22.0 N	N/A
1 mm	11.16 kg / 24.61 LBS 6 017 Gs	1.67 kg / 3.69 LBS 1674 g / 16.4 N	10.04 kg / 22.15 LBS ~0 Gs
2 mm	7.88 kg / 17.38 LBS 5 058 Gs	1.18 kg / 2.61 LBS 1183 g / 11.6 N	7.10 kg / 15.64 LBS ~0 Gs
3 mm	5.44 kg / 11.99 LBS 4 201 Gs	0.82 kg / 1.80 LBS 816 g / 8.0 N	4.90 kg / 10.79 LBS ~0 Gs
5 mm	2.59 kg / 5.71 LBS 2 899 Gs	0.39 kg / 0.86 LBS 389 g / 3.8 N	2.33 kg / 5.14 LBS ~0 Gs
10 mm	0.54 kg / 1.20 LBS 1 328 Gs	0.08 kg / 0.18 LBS 81 g / 0.8 N	0.49 kg / 1.08 LBS ~0 Gs
20 mm	0.07 kg / 0.15 LBS 471 Gs	0.01 kg / 0.02 LBS 10 g / 0.1 N	0.06 kg / 0.14 LBS ~0 Gs
50 mm	0.00 kg / 0.00 LBS 83 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
60 mm	0.00 kg / 0.00 LBS 55 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
70 mm	0.00 kg / 0.00 LBS 38 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
80 mm	0.00 kg / 0.00 LBS 27 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
90 mm	0.00 kg / 0.00 LBS 20 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
100 mm	0.00 kg / 0.00 LBS 15 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs

Two magnets attract each other from a much further distance than a magnet and steel combination. The connection of two magnets produces a massive flux and a wider radius of action. Want to build a powerful holder? Apply two magnets instead of one magnet and a steel. Exercise caution that when bringing together two magnets, the impact force is extreme. The repulsion force is a bit weaker than the connection force, but still large.
*Flux density between like poles drops to ~0 Gs at the geometric center of the gap (due to field cancellation).
Attention: Estimates refer to shear force of two matching neodymium magnets (friction coefficient ~0.15 for Ni-Ni plating).

Table 7: Protective zones (implants) - warnings
MPL 40x5x3 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	6.0 cm
Hearing aid	10 Gs (1.0 mT)	4.5 cm
Timepiece	20 Gs (2.0 mT)	3.5 cm
Phone / Smartphone	40 Gs (4.0 mT)	3.0 cm
Remote	50 Gs (5.0 mT)	2.5 cm
Payment card	400 Gs (40.0 mT)	1.0 cm
HDD hard drive	600 Gs (60.0 mT)	1.0 cm

A strong magnetic field is a large risk to electronics as well as medical implants. These magnets produce a flux that prevents correct functioning of sensitive medical devices. Remember: the unseen radiation penetrates the body and glass. Exceptional care must be exercised by people with cochlear implants and drug dispensers. The risk also applies to: mechanical watches, car keys, speakers, and screens. Do not place the magnet near cards, HDD media, or precise measuring instruments.

Table 8: Dynamics (cracking risk) - collision effects
MPL 40x5x3 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	40.82 km/h (11.34 m/s)	0.29 J
30 mm	70.50 km/h (19.58 m/s)	0.86 J
50 mm	91.02 km/h (25.28 m/s)	1.44 J
100 mm	128.71 km/h (35.75 m/s)	2.88 J

NdFeB products are delicate – a strong collision with metal risks their cracking. Watch the impact speed – a neodymium left loose turns into a projectile. Kinetic force can destroy the magnet or injury to fingers. Be sure to control the product during mounting 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 large magnets.

Table 9: Corrosion resistance
MPL 40x5x3 / 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 (Flux)
MPL 40x5x3 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	5 123 Mx	51.2 µWb
P_c Coefficient	0.27	Low (Flat)

Total magnetic flux emitted by the pole surface. Key data when building generators and motors. The P_c coefficient determines the magnet's operating point.

Table 11: Physics of underwater searching
MPL 40x5x3 / N38

Environment	Effective steel pull	Effect
Air (land)	7.33 kg	Standard
Water (riverbed)	8.39 kg (+1.06 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.

Contrary to myths, water does not block the magnetic field. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Sliding resistance

*Caution: On a vertical surface, the magnet retains only approx. 20-30% of its perpendicular strength.

2. Plate thickness effect

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

3. Heat tolerance

*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) = 0.27

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.

Technical and environmental data

Elemental analysis

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

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: 020402-2026

Measurement Calculator

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This product is a very powerful plate magnet made of NdFeB material, which, with dimensions of 40x5x3 mm and a weight of 4.5 g, guarantees premium class connection. As a magnetic bar with high power (approx. 7.33 kg), this product is available off-the-shelf from our warehouse in Poland. Additionally, its Ni-Cu-Ni coating protects it against corrosion in standard operating conditions, giving it an aesthetic appearance.

Separating block 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 7.33 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 40x5x3 / N38 are the foundation for many industrial devices, such as magnetic separators and linear motors. 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 40x5x3 / 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 clean and degrease the magnet surface before gluing, which significantly increases the adhesion of the glue to the nickel coating.

Standardly, the MPL 40x5x3 / N38 model is magnetized axially (dimension 3 mm), which means that the N and S poles are located on its largest, flat surfaces. Thanks to this, it works best when "sticking" to sheet metal or another magnet with a large surface area. 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), 5 mm (width), and 3 mm (thickness). The key parameter here is the lifting capacity amounting to approximately 7.33 kg (force ~71.91 N), which, with such a flat shape, proves the high grade of the material. The product meets the standards for N38 grade magnets.

Strengths and weaknesses of Nd₂Fe₁₄B magnets.

Strengths

In addition to their pulling strength, neodymium magnets provide the following advantages:

They have unchanged lifting capacity, and over around ten years their attraction force decreases symbolically – ~1% (according to theory),
They do not lose their magnetic properties even under close interference source,
In other words, due to the aesthetic surface of nickel, the element is aesthetically pleasing,
They feature high magnetic induction at the operating surface, making them more effective,
Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
Due to the possibility of flexible molding and adaptation to specialized requirements, neodymium magnets can be manufactured in a variety of forms and dimensions, which increases their versatility,
Versatile presence in innovative solutions – they are commonly used in hard drives, electric motors, medical equipment, also modern systems.
Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in compact dimensions, which enables their usage in compact constructions

Disadvantages

Disadvantages of neodymium magnets:

To avoid cracks upon strong impacts, 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 and shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
They rust in a humid environment. For use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
We recommend cover - magnetic holder, due to difficulties in realizing nuts inside the magnet and complicated shapes.
Possible danger related to microscopic parts of magnets are risky, if swallowed, which gains importance in the context of child health protection. Furthermore, tiny parts of these products are able to be problematic in diagnostics medical when they are in the body.
Due to complex production process, their price is higher than average,

Lifting parameters

Optimal lifting capacity of a neodymium magnet – what contributes to it?

The specified lifting capacity represents the limit force, measured under optimal environment, specifically:

with the use of a yoke made of low-carbon steel, ensuring maximum field concentration
with a thickness no less than 10 mm
characterized by even structure
without any air gap between the magnet and steel
under perpendicular force vector (90-degree angle)
at temperature room level

Determinants of practical lifting force of a magnet

In real-world applications, the actual lifting capacity is determined by a number of factors, listed from crucial:

Gap between surfaces – even a fraction of a millimeter of separation (caused e.g. by varnish or dirt) drastically reduces the pulling force, often by half at just 0.5 mm.
Direction of force – maximum parameter is obtained only during pulling at a 90° angle. The force required to slide of the magnet along the plate is standardly several times lower (approx. 1/5 of the lifting capacity).
Steel thickness – insufficiently thick steel causes magnetic saturation, causing part of the power to be escaped to the other side.
Steel grade – ideal substrate is pure iron steel. Stainless steels may attract less.
Plate texture – ground elements ensure maximum contact, which improves field saturation. Uneven metal reduce efficiency.
Thermal factor – hot environment reduces magnetic field. Exceeding the limit temperature can permanently damage the magnet.

Lifting capacity was measured using a smooth steel plate of optimal thickness (min. 20 mm), under perpendicular detachment force, however under shearing force 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.

Warnings

Precision electronics

A strong magnetic field negatively affects the functioning of magnetometers in phones and navigation systems. Keep magnets close to a smartphone to avoid damaging the sensors.

Fire warning

Powder generated during machining of magnets is self-igniting. Do not drill into magnets without proper cooling and knowledge.

Keep away from children

Absolutely keep magnets out of reach of children. Ingestion danger is significant, and the effects of magnets connecting inside the body are life-threatening.

Cards and drives

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

Material brittleness

Despite metallic appearance, neodymium is brittle and cannot withstand shocks. Avoid impacts, as the magnet may crumble into sharp, dangerous pieces.

Heat sensitivity

Monitor thermal conditions. Exposing the magnet above 80 degrees Celsius will ruin its magnetic structure and strength.

Hand protection

Risk of injury: The attraction force is so great that it can cause blood blisters, pinching, and broken bones. Use thick gloves.

Metal Allergy

A percentage of the population suffer from a hypersensitivity to nickel, which is the standard coating for NdFeB magnets. Frequent touching can result in a rash. It is best to wear protective gloves.

Life threat

People with a heart stimulator must maintain an safe separation from magnets. The magnetic field can interfere with the operation of the implant.

Powerful field

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

Caution! Want to know more? Read our article: Are neodymium magnets dangerous?

MPL 40x5x3 / N38 - lamellar magnet

Technical details - MPL 40x5x3 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical modeling of the assembly - report

Table 1: Static force (force vs gap) - characteristics MPL 40x5x3 / N38

Table 2: Vertical force (vertical surface) MPL 40x5x3 / N38

Table 3: Vertical assembly (shearing) - vertical pull MPL 40x5x3 / N38

Table 4: Material efficiency (substrate influence) - sheet metal selection MPL 40x5x3 / N38

Table 5: Thermal resistance (stability) - thermal limit MPL 40x5x3 / N38

Table 6: Two magnets (repulsion) - forces in the system MPL 40x5x3 / N38

Table 7: Protective zones (implants) - warnings MPL 40x5x3 / N38

Table 8: Dynamics (cracking risk) - collision effects MPL 40x5x3 / N38

Table 9: Corrosion resistance MPL 40x5x3 / N38

Table 10: Electrical data (Flux) MPL 40x5x3 / N38

Table 11: Physics of underwater searching MPL 40x5x3 / N38

1. Sliding resistance

2. Plate thickness effect

3. Heat tolerance

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

Elemental analysis

Environmental data

Pulling force

Field Strength

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SM 25x300 [2xM8] / N52 - magnetic separator

Strengths and weaknesses of Nd2Fe14B magnets.

Strengths

Disadvantages

Lifting parameters

Optimal lifting capacity of a neodymium magnet – what contributes to it?

Determinants of practical lifting force of a magnet

Warnings

Precision electronics

Fire warning

Keep away from children

Cards and drives

Material brittleness

Heat sensitivity

Hand protection

Metal Allergy

Life threat

Powerful field

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs gap) - characteristics
MPL 40x5x3 / N38

Table 2: Vertical force (vertical surface)
MPL 40x5x3 / N38

Table 3: Vertical assembly (shearing) - vertical pull
MPL 40x5x3 / N38

Table 4: Material efficiency (substrate influence) - sheet metal selection
MPL 40x5x3 / N38

Table 5: Thermal resistance (stability) - thermal limit
MPL 40x5x3 / N38

Table 6: Two magnets (repulsion) - forces in the system
MPL 40x5x3 / N38

Table 7: Protective zones (implants) - warnings
MPL 40x5x3 / N38

Table 8: Dynamics (cracking risk) - collision effects
MPL 40x5x3 / N38

Table 9: Corrosion resistance
MPL 40x5x3 / N38

Table 10: Electrical data (Flux)
MPL 40x5x3 / N38

Table 11: Physics of underwater searching
MPL 40x5x3 / N38

Strengths and weaknesses of Nd₂Fe₁₄B magnets.