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MPL 40x7x3 / 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 020162

GTIN/EAN: 5906301811688

5.00

length

40 mm [±0,1 mm]

Width

7 mm [±0,1 mm]

Height

3 mm [±0,1 mm]

Weight

6.3 g

Magnetization Direction

↑ axial

Load capacity

7.14 kg / 70.02 N

Magnetic Induction

284.46 mT / 2845 Gs

Coating

[NiCuNi] Nickel

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Technical details - MPL 40x7x3 / N38 - lamellar magnet

Specification / characteristics - MPL 40x7x3 / N38 - lamellar magnet

properties

properties	values
Cat. no.	020162
GTIN/EAN	5906301811688
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	7 mm [±0,1 mm]
Height	3 mm [±0,1 mm]
Weight	6.3 g
Magnetization Direction	↑ axial
Load capacity ~ ?	7.14 kg / 70.02 N
Magnetic Induction ~ ?	284.46 mT / 2845 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 40x7x3 / 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 modeling of the magnet - data

The following data represent the direct effect of a engineering calculation. Results were calculated on algorithms for the class Nd₂Fe₁₄B. Operational performance might slightly deviate from the simulation results. Use these calculations as a reference point during assembly planning.

Table 1: Static force (force vs gap) - power drop
MPL 40x7x3 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	2843 Gs 284.3 mT	7.14 kg / 15.74 LBS 7140.0 g / 70.0 N	warning
1 mm	2314 Gs 231.4 mT	4.73 kg / 10.43 LBS 4729.9 g / 46.4 N	warning
2 mm	1788 Gs 178.8 mT	2.83 kg / 6.23 LBS 2825.3 g / 27.7 N	warning
3 mm	1365 Gs 136.5 mT	1.65 kg / 3.63 LBS 1645.1 g / 16.1 N	safe
5 mm	824 Gs 82.4 mT	0.60 kg / 1.32 LBS 599.2 g / 5.9 N	safe
10 mm	317 Gs 31.7 mT	0.09 kg / 0.20 LBS 88.6 g / 0.9 N	safe
15 mm	160 Gs 16.0 mT	0.02 kg / 0.05 LBS 22.5 g / 0.2 N	safe
20 mm	92 Gs 9.2 mT	0.01 kg / 0.02 LBS 7.5 g / 0.1 N	safe
30 mm	38 Gs 3.8 mT	0.00 kg / 0.00 LBS 1.3 g / 0.0 N	safe
50 mm	11 Gs 1.1 mT	0.00 kg / 0.00 LBS 0.1 g / 0.0 N	safe

Grip strength decreases sharply per each millimeter of distance. Keep in mind that even a microscopic distance (e.g., dirt, varnish, veneer) noticeably weakens the grip. Magnets work optimally in perfect adhesion; distance nullifies the power. Notice how quickly the load capacity plummet, when the magnet does not adhere directly to the metal substrate. When calculating the assembly, eliminate redundant distances.

Table 2: Sliding force (wall)
MPL 40x7x3 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	1.43 kg / 3.15 LBS 1428.0 g / 14.0 N
1 mm	Stal (~0.2)	0.95 kg / 2.09 LBS 946.0 g / 9.3 N
2 mm	Stal (~0.2)	0.57 kg / 1.25 LBS 566.0 g / 5.6 N
3 mm	Stal (~0.2)	0.33 kg / 0.73 LBS 330.0 g / 3.2 N
5 mm	Stal (~0.2)	0.12 kg / 0.26 LBS 120.0 g / 1.2 N
10 mm	Stal (~0.2)	0.02 kg / 0.04 LBS 18.0 g / 0.2 N
15 mm	Stal (~0.2)	0.00 kg / 0.01 LBS 4.0 g / 0.0 N
20 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 2.0 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 presents the theoretical shear load needed to cause the shifting of the magnet downwards against a upright steel wall (considering standard friction). This parameter depends on the air gap between the magnet and the surface.

Table 3: Vertical assembly (sliding) - vertical pull
MPL 40x7x3 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	2.14 kg / 4.72 LBS 2142.0 g / 21.0 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	1.43 kg / 3.15 LBS 1428.0 g / 14.0 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.71 kg / 1.57 LBS 714.0 g / 7.0 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	3.57 kg / 7.87 LBS 3570.0 g / 35.0 N

When mounting a holder on a upright surface (e.g., a fridge), it will maintain barely about 20%-30% of its maximum pull force. Gravity and a weak degree of grip cause that magnets slide down easier than they detach. Designing a hanger? Remember that the shear force is significantly lower than the maximum static pull force. On a painted metal, the magnet will give way down under a noticeably lighter weight. Using a rubber pad can effectively raise the stability.

Table 4: Material efficiency (substrate influence) - sheet metal selection
MPL 40x7x3 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.71 kg / 1.57 LBS 714.0 g / 7.0 N
1 mm	25%	1.79 kg / 3.94 LBS 1785.0 g / 17.5 N
2 mm	50%	3.57 kg / 7.87 LBS 3570.0 g / 35.0 N
3 mm	75%	5.35 kg / 11.81 LBS 5355.0 g / 52.5 N
5 mm	100%	7.14 kg / 15.74 LBS 7140.0 g / 70.0 N
10 mm	100%	7.14 kg / 15.74 LBS 7140.0 g / 70.0 N
11 mm	100%	7.14 kg / 15.74 LBS 7140.0 g / 70.0 N
12 mm	100%	7.14 kg / 15.74 LBS 7140.0 g / 70.0 N

A thin sheet cannot absorb the entire magnetic field, which squanders power of the magnet. If you install a neodymium to a thin surface, the magnetism will pass right through and the pull force will drop sharply. To squeeze the maximum of this neodymium's potential, you need a suitably thick element of steel. The saturation phenomenon means that on sheet metal structures (e.g., thin profiles), the product shows lower pull force. We suggest choosing the steel dimension based on the following data.

Table 5: Thermal resistance (stability) - power drop
MPL 40x7x3 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	7.14 kg / 15.74 LBS 7140.0 g / 70.0 N	OK
40 °C	-2.2%	6.98 kg / 15.39 LBS 6982.9 g / 68.5 N	OK
60 °C	-4.4%	6.83 kg / 15.05 LBS 6825.8 g / 67.0 N
80 °C	-6.6%	6.67 kg / 14.70 LBS 6668.8 g / 65.4 N
100 °C	-28.8%	5.08 kg / 11.21 LBS 5083.7 g / 49.9 N

Ordinary NdFeB products lose strength after exceeding the maximum temperature. Protect against heat – high temperature can permanently damage this magnet. As the temperature rises, the neodymium's capacity briefly decreases. Avoid using this product close to heaters exceeding its operating temperature limit. Exceeding the critical threshold will cause permanent loss of magnetic properties.

*Technical advisory: Heat tolerance depends not only on the material grade, but also on the magnet's shape. Flat magnets (low Pc) are more susceptible to demagnetization sooner than long magnets. The danger warning in the table indicates permanent field degradation for this specific geometry.

Table 6: Two magnets (repulsion) - forces in the system
MPL 40x7x3 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	13.95 kg / 30.75 LBS 4 204 Gs	2.09 kg / 4.61 LBS 2092 g / 20.5 N	N/A
1 mm	11.58 kg / 25.53 LBS 5 180 Gs	1.74 kg / 3.83 LBS 1737 g / 17.0 N	10.42 kg / 22.98 LBS ~0 Gs
2 mm	9.24 kg / 20.37 LBS 4 628 Gs	1.39 kg / 3.06 LBS 1386 g / 13.6 N	8.32 kg / 18.34 LBS ~0 Gs
3 mm	7.19 kg / 15.86 LBS 4 083 Gs	1.08 kg / 2.38 LBS 1079 g / 10.6 N	6.47 kg / 14.27 LBS ~0 Gs
5 mm	4.21 kg / 9.28 LBS 3 124 Gs	0.63 kg / 1.39 LBS 632 g / 6.2 N	3.79 kg / 8.36 LBS ~0 Gs
10 mm	1.17 kg / 2.58 LBS 1 647 Gs	0.18 kg / 0.39 LBS 176 g / 1.7 N	1.05 kg / 2.32 LBS ~0 Gs
20 mm	0.17 kg / 0.38 LBS 633 Gs	0.03 kg / 0.06 LBS 26 g / 0.3 N	0.16 kg / 0.34 LBS ~0 Gs
50 mm	0.01 kg / 0.01 LBS 115 Gs	0.00 kg / 0.00 LBS 1 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
60 mm	0.00 kg / 0.01 LBS 76 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 53 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 38 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 28 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 21 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs

Two magnets interact from a wider radius than a neodymium and metal combination. The connection of magnet-to-magnet creates a more powerful interaction and a larger range of operation. Designing a powerful holder? 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 levitation is slightly lower than the attraction, but still impressive.
*Flux density for N-N configuration drops to ~0 Gs at the midpoint of the gap (caused by magnetic field nullification).
Important: Calculations show friction force of a pair of identical neodymium magnets (friction coefficient ~0.15 for Ni-Ni plating).

Table 7: Hazards (electronics) - warnings
MPL 40x7x3 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	7.0 cm
Hearing aid	10 Gs (1.0 mT)	5.5 cm
Timepiece	20 Gs (2.0 mT)	4.0 cm
Mobile device	40 Gs (4.0 mT)	3.0 cm
Remote	50 Gs (5.0 mT)	3.0 cm
Payment card	400 Gs (40.0 mT)	1.0 cm
HDD hard drive	600 Gs (60.0 mT)	1.0 cm

Extremely neodym field is a large risk to electronics as well as medical implants. These magnets generate a field that prevents correct functioning of digital equipment. Notice: the unseen radiation acts through matter and plastic. Exceptional care must be exercised by people with cochlear implants and drug dispensers. Also at risk are: automatic timepieces, remotes, membranes, and displays. Avoid contact with magnetic cards, HDD media, or sensitive navigation tools.

Table 8: Collisions (kinetic energy) - warning
MPL 40x7x3 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	34.21 km/h (9.50 m/s)	0.28 J
30 mm	58.81 km/h (16.34 m/s)	0.84 J
50 mm	75.92 km/h (21.09 m/s)	1.40 J
100 mm	107.36 km/h (29.82 m/s)	2.80 J

NdFeB products are delicate – a collision with steel can result in shattering. Control the attraction moment – a neodymium left loose speeds with massive force. Impact energy can cause material chips or dangerous crushing to fingers. Always hold the magnet during bringing near metal so it doesn't hit violently against the metal. A contact at a velocity of dozens of km/h means shattering of the magnet. Use safety goggles when playing with powerful specimens.

Table 9: Anti-corrosion coating durability
MPL 40x7x3 / 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)

The SST (salt spray test) is an industry standard for determining coating lifespan in harsh conditions. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Construction data (Flux)
MPL 40x7x3 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	6 379 Mx	63.8 µWb
P_c Coefficient	0.24	Low (Flat)

Flux value emitted by the pole surface. Key data in coil applications as well as sensors. P_c value defines the working geometry.

Table 11: Physics of underwater searching
MPL 40x7x3 / N38

Environment	Effective steel pull	Effect
Air (land)	7.14 kg	Standard
Water (riverbed)	8.18 kg (+1.04 kg buoyancy gain)	+14.5%

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

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

1. Wall mount (shear)

*Warning: On a vertical wall, the magnet retains only approx. 20-30% of its max power.

2. Plate thickness effect

*Thin steel (e.g. 0.5mm PC case) significantly reduces 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) = 0.24

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

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%

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: 020162-2026

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Component MPL 40x7x3 / N38 features a low profile and industrial pulling force, making it an ideal solution for building separators and machines. This magnetic block with a force of 70.02 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.

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. To separate the MPL 40x7x3 / N38 model, firmly slide one magnet over the edge of the other until the attraction force decreases. We recommend extreme caution, because after separation, the magnets may want to violently snap back together, which threatens pinching the skin. 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 wind generators and material handling systems. Thanks to the flat surface and high force (approx. 7.14 kg), they are ideal as hidden locks in furniture making and mounting elements in automation. Customers often choose this model for hanging tools on strips and for advanced DIY and modeling projects, where precision and power count.

For mounting flat magnets MPL 40x7x3 / 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. Avoid chemically aggressive glues or hot glue, which can demagnetize neodymium (above 80°C).

The magnetic axis runs through the shortest dimension, which is typical for gripper magnets. In practice, this means that this magnet has the greatest attraction force on its main planes (40x7 mm), which is ideal for flat mounting. Such a pole arrangement ensures maximum holding capacity when pressing against the sheet, creating a closed magnetic circuit.

This model is characterized by dimensions 40x7x3 mm, which, at a weight of 6.3 g, makes it an element with impressive energy density. It is a magnetic block with dimensions 40x7x3 mm and a self-weight of 6.3 g, ready to work at temperatures up to 80°C. The product meets the standards for N38 grade magnets.

Strengths and weaknesses of Nd₂Fe₁₄B magnets.

Pros

Apart from their consistent magnetic energy, neodymium magnets have these key benefits:

They have constant strength, and over around ten years their performance decreases symbolically – ~1% (in testing),
They possess excellent resistance to magnetism drop when exposed to external fields,
Thanks to the elegant finish, the layer of Ni-Cu-Ni, gold-plated, or silver-plated gives an elegant appearance,
They feature high magnetic induction at the operating surface, making them more effective,
Thanks to resistance to high temperature, they are able to function (depending on the form) even at temperatures up to 230°C and higher...
Thanks to flexibility in forming and the ability to adapt to individual projects,
Versatile presence in innovative solutions – they serve a role in magnetic memories, motor assemblies, precision medical tools, also multitasking production systems.
Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Limitations

Characteristics of disadvantages of neodymium magnets: application proposals

They are fragile upon heavy impacts. To avoid cracks, it is worth securing magnets in special housings. Such protection not only protects the magnet but also increases its resistance to damage
NdFeB magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of power (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 very resistant to heat
Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material stable to moisture, when using outdoors
Due to limitations in producing threads and complicated shapes in magnets, we recommend using casing - magnetic mount.
Potential hazard resulting from small fragments of magnets pose a threat, if swallowed, which is particularly important in the context of child health protection. It is also worth noting that tiny parts of these devices can disrupt the diagnostic process medical in case of swallowing.
Due to neodymium price, their price is relatively high,

Pull force analysis

Maximum lifting force for a neodymium magnet – what affects it?

Information about lifting capacity is the result of a measurement for the most favorable conditions, taking into account:

on a block made of mild steel, perfectly concentrating the magnetic field
whose thickness equals approx. 10 mm
with an ground touching surface
without any air gap between the magnet and steel
under axial application of breakaway force (90-degree angle)
at room temperature

Lifting capacity in real conditions – factors

Please note that the application force may be lower depending on the following factors, in order of importance:

Distance (between the magnet and the metal), as even a very small distance (e.g. 0.5 mm) leads to a decrease in lifting capacity by up to 50% (this also applies to varnish, rust or debris).
Angle of force application – highest force is available only during perpendicular pulling. The shear force of the magnet along the surface is standardly several times lower (approx. 1/5 of the lifting capacity).
Steel thickness – too thin sheet causes magnetic saturation, causing part of the flux to be lost into the air.
Material composition – not every steel attracts identically. Alloy additives weaken the interaction with the magnet.
Base smoothness – the more even the surface, the better the adhesion and higher the lifting capacity. Unevenness acts like micro-gaps.
Operating temperature – NdFeB sinters have a sensitivity to temperature. At higher temperatures they lose power, and at low temperatures gain strength (up to a certain limit).

Lifting capacity was assessed with the use of a polished steel plate of optimal thickness (min. 20 mm), under vertically applied force, however under attempts to slide the magnet the load capacity is reduced by as much as fivefold. In addition, even a small distance between the magnet and the plate reduces the load capacity.

Precautions when working with neodymium magnets

Eye protection

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

Power loss in heat

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

Handling rules

Be careful. Neodymium magnets attract from a distance and connect with huge force, often quicker than you can react.

Electronic hazard

Very strong magnetic fields can corrupt files on credit cards, HDDs, and storage devices. Maintain a gap of at least 10 cm.

Flammability

Mechanical processing of NdFeB material carries a risk of fire risk. Magnetic powder reacts violently with oxygen and is hard to extinguish.

Pacemakers

Medical warning: Neodymium magnets can turn off heart devices and defibrillators. Do not approach if you have medical devices.

Metal Allergy

Certain individuals have a hypersensitivity to nickel, which is the typical protective layer for NdFeB magnets. Frequent touching might lead to an allergic reaction. We recommend use safety gloves.

Compass and GPS

A powerful magnetic field negatively affects the operation of magnetometers in phones and GPS navigation. Maintain magnets near a smartphone to prevent breaking the sensors.

Danger to the youngest

Only for adults. Tiny parts pose a choking risk, causing serious injuries. Keep out of reach of kids and pets.

Bodily injuries

Pinching hazard: The attraction force is so great that it can result in hematomas, crushing, and even bone fractures. Protective gloves are recommended.

Safety First! Learn more about hazards in the article: Safety of working with magnets.

MPL 40x7x3 / N38 - lamellar magnet

Technical details - MPL 40x7x3 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical modeling of the magnet - data

Table 1: Static force (force vs gap) - power drop MPL 40x7x3 / N38

Table 2: Sliding force (wall) MPL 40x7x3 / N38

Table 3: Vertical assembly (sliding) - vertical pull MPL 40x7x3 / N38

Table 4: Material efficiency (substrate influence) - sheet metal selection MPL 40x7x3 / N38

Table 5: Thermal resistance (stability) - power drop MPL 40x7x3 / N38

Table 6: Two magnets (repulsion) - forces in the system MPL 40x7x3 / N38

Table 7: Hazards (electronics) - warnings MPL 40x7x3 / N38

Table 8: Collisions (kinetic energy) - warning MPL 40x7x3 / N38

Table 9: Anti-corrosion coating durability MPL 40x7x3 / N38

Table 10: Construction data (Flux) MPL 40x7x3 / N38

Table 11: Physics of underwater searching MPL 40x7x3 / N38

1. Wall mount (shear)

2. Plate thickness effect

3. Thermal stability

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

Elemental analysis

Sustainability

Magnet pull force

Magnetic Field

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Strengths and weaknesses of Nd2Fe14B magnets.

Pros

Limitations

Pull force analysis

Maximum lifting force for a neodymium magnet – what affects it?

Lifting capacity in real conditions – factors

Precautions when working with neodymium magnets

Eye protection

Power loss in heat

Handling rules

Electronic hazard

Flammability

Pacemakers

Metal Allergy

Compass and GPS

Danger to the youngest

Bodily injuries

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs gap) - power drop
MPL 40x7x3 / N38

Table 2: Sliding force (wall)
MPL 40x7x3 / N38

Table 3: Vertical assembly (sliding) - vertical pull
MPL 40x7x3 / N38

Table 4: Material efficiency (substrate influence) - sheet metal selection
MPL 40x7x3 / N38

Table 5: Thermal resistance (stability) - power drop
MPL 40x7x3 / N38

Table 6: Two magnets (repulsion) - forces in the system
MPL 40x7x3 / N38

Table 7: Hazards (electronics) - warnings
MPL 40x7x3 / N38

Table 8: Collisions (kinetic energy) - warning
MPL 40x7x3 / N38

Table 9: Anti-corrosion coating durability
MPL 40x7x3 / N38

Table 10: Construction data (Flux)
MPL 40x7x3 / N38

Table 11: Physics of underwater searching
MPL 40x7x3 / N38

Strengths and weaknesses of Nd₂Fe₁₄B magnets.