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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

see technical data »

2.79 ZŁ with VAT / pcs + price for transport

2.27 ZŁ net + 23% VAT / pcs

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Technical specification - 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

Technical simulation of the assembly - report

The following information represent the direct effect of a physical analysis. Values were calculated on models for the class Nd₂Fe₁₄B. Operational conditions may differ from theoretical values. Please consider these data as a preliminary roadmap during assembly planning.

Table 1: Static force (force vs distance) - characteristics
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	medium risk
1 mm	2314 Gs 231.4 mT	4.73 kg / 10.43 lbs 4729.9 g / 46.4 N	medium risk
2 mm	1788 Gs 178.8 mT	2.83 kg / 6.23 lbs 2825.3 g / 27.7 N	medium risk
3 mm	1365 Gs 136.5 mT	1.65 kg / 3.63 lbs 1645.1 g / 16.1 N	weak grip
5 mm	824 Gs 82.4 mT	0.60 kg / 1.32 lbs 599.2 g / 5.9 N	weak grip
10 mm	317 Gs 31.7 mT	0.09 kg / 0.20 lbs 88.6 g / 0.9 N	weak grip
15 mm	160 Gs 16.0 mT	0.02 kg / 0.05 lbs 22.5 g / 0.2 N	weak grip
20 mm	92 Gs 9.2 mT	0.01 kg / 0.02 lbs 7.5 g / 0.1 N	weak grip
30 mm	38 Gs 3.8 mT	0.00 kg / 0.00 lbs 1.3 g / 0.0 N	weak grip
50 mm	11 Gs 1.1 mT	0.00 kg / 0.00 lbs 0.1 g / 0.0 N	weak grip

Magnetic force decreases sharply with every mm of spacing. Remember that every additional insulation layer (e.g., dirt, varnish, rust) noticeably reduces the pull force. Neodymiums work strongest during direct contact; gap weakens the force. Observe how rapidly the parameters plummet, when the magnet does not touch tightly to the steel surface. When calculating the mounting, avoid unnecessary gaps.

Table 2: Slippage 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 force necessary to initiate the slippage of the magnet vertically along a upright steel wall (assuming typical friction). This parameter depends on the separation distance between the magnet and the metal.

Table 3: Wall mounting (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 magnet on a upright plane (e.g., a car body), it you can count on just about 20%-30% of its maximum pull force. Gravitational force and a low friction coefficient influence the fact that magnets move down faster than they detach. Designing a wall mount? Remember that the shear force is significantly lower than the maximum static pull force. On a painted metal, the magnet will slide down under a significantly smaller weight. Application of an anti-slip coating can drastically raise the stability.

Table 4: Steel thickness (saturation) - 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 too thin steel is not enough to take in the full magnetic flux, which squanders power of the holder. Should you install a neodymium to a too thin substrate, the field will penetrate right through and the attraction force will be weaker. To achieve 100% of this magnet's power, you require a sufficiently solid backing of metal. The saturation effect means that on thin elements (e.g., thin profiles), the holder holds weaker. We recommend selecting the steel cross-section from these parameters.

Table 5: Thermal resistance (stability) - resistance threshold
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

Classic neodymiums irreversibly lose strength after exceeding the maximum temperature. Avoid high temperatures – high temperature can permanently damage this magnet. With every degree above norm, the neodymium's power momentarily lowers. Avoid using this product near heat sources exceeding its working range. Too high temperature will cause destruction of magnetism.

*Technical advisory: Temperature resistance depends not only on the material grade, but also on the magnet's shape. Thin magnets (pancake types) may lose charge permanently at lower temperatures than taller cylinders. Red status in the table points to a risk of irreversible loss for this specific geometry.

Table 6: Two magnets (attraction) - field range
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 strong neodymiums attract each other from a wider radius than a magnet and sheet setup. The connection of two magnets produces a massive flux and a further horizon of action. Planning to create a strong closure? Apply two magnets instead of a neodymium and a striker plate. Remember that when connecting a pair of magnets, the pinch force is huge. The levitation is a bit weaker than the attraction, but still significant.
*Flux density for N-N configuration reaches ~0 Gs in the exact middle between the magnets (caused by magnetic field nullification).
Note: Calculations demonstrate sliding force of dual same magnets (friction ~0.15 for Ni-Ni coating).

Table 7: Protective zones (implants) - precautionary measures
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
Phone / Smartphone	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

A strong magnetic field is a large risk to electronics as well as pacemakers. These neodymiums generate a flux that destroys function of digital equipment. Notice: the invisible magnetic field penetrates the body and glass. Exceptional care must be exercised by people with cochlear implants and insulin pumps. Also at risk are: mechanical watches, remotes, membranes, and displays. Do not bring the product near payment cards, hard drives, or precise measuring instruments.

Table 8: Impact energy (cracking risk) - collision effects
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

Magnetic elements are very brittle – a collision with steel causes immediate chipping. Watch the impact speed – a neodymium left loose turns into a projectile. Striking energy can trigger coating fragments or injury to skin. Always hold the magnet during installation so it doesn't hit violently against the metal. A contact at a velocity of dozens of km/h means shattering of the magnet. Use safety goggles when playing with large magnets.

Table 9: Coating parameters (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)

For outdoor applications, an epoxy coating is required; standard nickel is intended for indoor use. 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 passing through the magnet pole. Key data when building generators as well as sensors. P_c value defines the working geometry.

Table 11: Submerged application
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%

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

The magnetic field penetrates through water without any losses. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Shear force

*Warning: On a vertical surface, the magnet retains merely approx. 20-30% of its nominal pull.

2. Efficiency vs thickness

*Thin steel (e.g. 0.5mm PC case) drastically limits 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) = 0.24

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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This product is a very powerful plate magnet made of NdFeB material, which, with dimensions of 40x7x3 mm and a weight of 6.3 g, guarantees premium class connection. As a magnetic bar with high power (approx. 7.14 kg), this product is available immediately from our warehouse in Poland. Furthermore, its Ni-Cu-Ni coating secures 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 7.14 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 40x7x3 / N38 are the foundation for many industrial devices, such as magnetic separators and linear motors. 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. Their rectangular shape facilitates precise gluing into milled sockets in wood or plastic.

For mounting flat magnets MPL 40x7x3 / 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 roughen and wash the magnet surface before gluing, which significantly increases the adhesion of the glue to the nickel coating.

Standardly, the MPL 40x7x3 / 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. 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. The key parameter here is the holding force amounting to approximately 7.14 kg (force ~70.02 N), which, with such a compact shape, proves the high grade of the material. The protective [NiCuNi] coating secures the magnet against corrosion.

Pros and cons of neodymium magnets.

Benefits

In addition to their magnetic efficiency, neodymium magnets provide the following advantages:

Their strength is durable, and after around ten years it drops only by ~1% (theoretically),
They maintain their magnetic properties even under external field action,
Thanks to the shimmering finish, the surface of nickel, gold-plated, or silver gives an clean appearance,
They show high magnetic induction at the operating surface, which improves attraction properties,
Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the form) even at high temperatures reaching 230°C or more...
Thanks to the possibility of free forming and customization to individualized solutions, NdFeB magnets can be modeled in a variety of geometric configurations, which amplifies use scope,
Fundamental importance in modern technologies – they serve a role in magnetic memories, motor assemblies, advanced medical instruments, and other advanced devices.
Thanks to concentrated force, small magnets offer high operating force, in miniature format,

Disadvantages

Problematic aspects of neodymium magnets and ways of using them

To avoid cracks under impact, we recommend using special steel holders. Such a solution secures the magnet and simultaneously improves its durability.
Neodymium magnets lose force when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of strength (a factor is the shape and 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
They rust in a humid environment. For use outdoors we advise using waterproof magnets e.g. in rubber, plastic
We recommend cover - magnetic mount, due to difficulties in creating threads inside the magnet and complex shapes.
Health risk resulting from small fragments of magnets are risky, if swallowed, which gains importance in the context of child health protection. It is also worth noting that small components of these devices can disrupt the diagnostic process medical when they are in the body.
Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Pull force analysis

Maximum holding power of the magnet – what contributes to it?

Breakaway force was determined for the most favorable conditions, taking into account:

using a plate made of mild steel, acting as a circuit closing element
whose thickness is min. 10 mm
characterized by even structure
under conditions of ideal adhesion (metal-to-metal)
during pulling in a direction perpendicular to the plane
at ambient temperature room level

Lifting capacity in real conditions – factors

Real force is influenced by specific conditions, including (from priority):

Gap between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by veneer or dirt) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
Direction of force – maximum parameter is available only during pulling at a 90° angle. The resistance to sliding of the magnet along the surface is usually many times smaller (approx. 1/5 of the lifting capacity).
Substrate thickness – for full efficiency, the steel must be sufficiently thick. Paper-thin metal limits the lifting capacity (the magnet "punches through" it).
Material type – the best choice is high-permeability steel. Stainless steels may have worse magnetic properties.
Surface condition – smooth surfaces ensure maximum contact, which improves field saturation. Rough surfaces reduce efficiency.
Operating temperature – neodymium magnets have a negative temperature coefficient. When it is hot they are weaker, and in frost they can be stronger (up to a certain limit).

Holding force was measured on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, whereas under shearing force the lifting capacity is smaller. Moreover, even a minimal clearance between the magnet’s surface and the plate lowers the lifting capacity.

H&S for magnets

Sensitization to coating

Some people have a contact allergy to nickel, which is the standard coating for NdFeB magnets. Extended handling might lead to an allergic reaction. We strongly advise use protective gloves.

Power loss in heat

Avoid heat. NdFeB magnets are sensitive to heat. If you require resistance above 80°C, look for special high-temperature series (H, SH, UH).

Physical harm

Large magnets can crush fingers in a fraction of a second. Never put your hand betwixt two strong magnets.

Precision electronics

Note: rare earth magnets produce a field that confuses precision electronics. Keep a safe distance from your phone, device, and navigation systems.

Dust is flammable

Combustion risk: Neodymium dust is highly flammable. Avoid machining magnets in home conditions as this risks ignition.

Safe operation

Exercise caution. Rare earth magnets act from a long distance and snap with huge force, often quicker than you can move away.

Protect data

Do not bring magnets close to a wallet, laptop, or TV. The magnetic field can permanently damage these devices and erase data from cards.

Shattering risk

Neodymium magnets are sintered ceramics, which means they are fragile like glass. Collision of two magnets will cause them cracking into small pieces.

Implant safety

Individuals with a pacemaker should keep an large gap from magnets. The magnetic field can disrupt the functioning of the life-saving device.

Product not for children

Always keep magnets out of reach of children. Risk of swallowing is high, and the consequences of magnets connecting inside the body are tragic.

Security! Want to know more? Check our post: Are neodymium magnets dangerous?

MPL 40x7x3 / N38 - lamellar magnet

Technical specification - MPL 40x7x3 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical simulation of the assembly - report

Table 1: Static force (force vs distance) - characteristics MPL 40x7x3 / N38

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

Table 3: Wall mounting (sliding) - vertical pull MPL 40x7x3 / N38

Table 4: Steel thickness (saturation) - sheet metal selection MPL 40x7x3 / N38

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

Table 6: Two magnets (attraction) - field range MPL 40x7x3 / N38

Table 7: Protective zones (implants) - precautionary measures MPL 40x7x3 / N38

Table 8: Impact energy (cracking risk) - collision effects MPL 40x7x3 / N38

Table 9: Coating parameters (durability) MPL 40x7x3 / N38

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

Table 11: Submerged application MPL 40x7x3 / N38

1. Shear force

2. Efficiency vs thickness

3. Power loss vs temp

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

Elemental analysis

Sustainability

Force (pull)

Magnetic Induction

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MW 12.5x2 / N38 - cylindrical magnet

HH 20x7.2 [M4] / N38 - through hole magnetic holder

MP 20x5x5 / N38 - ring magnet

UMP 94x40 [3xM10] GW F550 Silver Black / N52 - search holder

Pros and cons of neodymium magnets.

Benefits

Disadvantages

Pull force analysis

Maximum holding power of the magnet – what contributes to it?

Lifting capacity in real conditions – factors

H&S for magnets

Sensitization to coating

Power loss in heat

Physical harm

Precision electronics

Dust is flammable

Safe operation

Protect data

Shattering risk

Implant safety

Product not for children

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs distance) - characteristics
MPL 40x7x3 / N38

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

Table 3: Wall mounting (sliding) - vertical pull
MPL 40x7x3 / N38

Table 4: Steel thickness (saturation) - sheet metal selection
MPL 40x7x3 / N38

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

Table 6: Two magnets (attraction) - field range
MPL 40x7x3 / N38

Table 7: Protective zones (implants) - precautionary measures
MPL 40x7x3 / N38

Table 8: Impact energy (cracking risk) - collision effects
MPL 40x7x3 / N38

Table 9: Coating parameters (durability)
MPL 40x7x3 / N38

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

Table 11: Submerged application
MPL 40x7x3 / N38