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MPL 40x7x3 / 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 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

technical details »

2.79 ZŁ with VAT / pcs + price for transport

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Physical properties - 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

Engineering modeling of the magnet - report

Presented values constitute the direct effect of a physical analysis. Results rely on models for the material Nd₂Fe₁₄B. Actual parameters might slightly deviate from the simulation results. Please consider these calculations as a preliminary roadmap for designers.

Table 1: Static force (force vs distance) - 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	low risk
5 mm	824 Gs 82.4 mT	0.60 kg / 1.32 lbs 599.2 g / 5.9 N	low risk
10 mm	317 Gs 31.7 mT	0.09 kg / 0.20 lbs 88.6 g / 0.9 N	low risk
15 mm	160 Gs 16.0 mT	0.02 kg / 0.05 lbs 22.5 g / 0.2 N	low risk
20 mm	92 Gs 9.2 mT	0.01 kg / 0.02 lbs 7.5 g / 0.1 N	low risk
30 mm	38 Gs 3.8 mT	0.00 kg / 0.00 lbs 1.3 g / 0.0 N	low risk
50 mm	11 Gs 1.1 mT	0.00 kg / 0.00 lbs 0.1 g / 0.0 N	low risk

Pulling power decreases sharply per each millimeter of spacing. Note that even a very thin break (e.g., contamination, varnish, veneer) noticeably diminishes the holding power. Magnets hold most effectively during direct contact; distance drastically cuts the force. Analyze how quickly the parameters plummet, when the product does not adhere directly to the steel surface. When designing the mounting, eliminate 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 estimated force necessary to start the slippage of the magnet down along a upright steel wall (considering typical friction). The holding force depends on the air gap between the magnet and the metal.

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 placing a magnet on a upright wall (e.g., a board), it you can count on only about 20%-30% of its maximum pull force. Gravity as well as a low friction coefficient influence the fact that magnets slide down faster than they pop off the substrate. Want to create a hanger? Consider that the sliding force is noticeably lower than the perpendicular breakaway force. On a slippery surface, the holder will slide down under a much lighter load. Using a rubber coating can effectively improve the result.

Table 4: Material efficiency (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 unable to focus the full magnetic flux, which wastes potential of the magnet. Should you install a neodymium to a weak sheet, the flux will penetrate right through and the holding will be smaller. To achieve full efficiency of this neodymium's potential, you require a sufficiently solid piece of steel. The saturation effect means that on thin elements (e.g., thin profiles), the holder works worse. We advise picking the steel cross-section from these parameters.

Table 5: Working in heat (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 irreversibly lose power above the temperature limit. Avoid high temperatures – excessive heat can irreversibly destroy this product. With increasing heat, the magnet's force briefly decreases. Do not use this product close to heaters higher than its working range. Too high temperature will lead to irreversible degradation of magnetic properties.

*Important note: Temperature resistance is determined by both grade, but also on the magnet's shape. Low-profile magnets (low Pc) risk losing magnetic properties under lower heat stress compared to rod magnets. The danger warning in the table indicates permanent field degradation for this particular item.

Table 6: Magnet-Magnet interaction (attraction) - field collision
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. Such a system of two magnets produces a massive flux and a wider radius of action. Planning to create a strong closure? Utilize two neodymiums 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 significant.
*The magnetic induction between like poles reaches ~0 Gs at the geometric center between the magnets (resulting from vector opposition).
Note: Results apply to sliding force of dual identical neodymium magnets (friction ~0.15 for Ni-Ni layer).

Table 7: Protective zones (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
Mechanical watch	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

Powerful magnet radiation poses a large risk to IT equipment as well as pacemakers. These magnets generate a flux that disrupts operation of sensitive medical devices. Notice: the unseen radiation acts through matter and housings. Increased vigilance must be taken by people with cochlear implants and drug dispensers. Influence will be felt by: automatic timepieces, remotes, membranes, and screens. Do not place the magnet near cards, 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

Neodymium magnets are delicate – a violent impact against metal risks their cracking. Watch the impact speed – a neodymium left loose speeds with massive force. Kinetic force can trigger coating fragments or dangerous crushing to skin. Always hold the magnet during bringing near metal so it doesn't slam with momentum against the steel surface. A contact at a velocity of dozens of km/h almost guarantees destruction of the magnet. Wear safety glasses when playing with large magnets.

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 following table defines the conditions under which this product can be safely used. Moisture resistance is crucial for installations in bathrooms or outdoors.

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)

Total magnetic flux passing through the magnet pole. Essential parameter when building generators as well as sensors. P_c value defines the magnet's operating point.

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%

Warning: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!

Contrary to myths, water does not block the magnetic field. Buoyancy helps in lifting finds.

1. Wall mount (shear)

*Caution: On a vertical wall, the magnet holds just approx. 20-30% of its max power.

2. Efficiency vs thickness

*Thin steel (e.g. 0.5mm PC case) significantly weakens the holding force.

3. Thermal stability

*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

Chemical composition

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

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: 020162-2026

Magnet Unit Converter

Magnet pull force

Force in kg

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MPL 5x5x1.5 / N38 - lamellar magnet

0.1845 ZŁ brutto / pcs

Model MPL 40x7x3 / N38 features a flat shape and professional pulling force, making it a perfect solution for building separators and machines. As a magnetic bar with high power (approx. 7.14 kg), this product is available immediately from our warehouse in Poland. Additionally, its Ni-Cu-Ni coating protects it against corrosion in standard operating conditions, giving it an aesthetic appearance.

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 7.14 kg can pinch very hard and cause hematomas. Using a screwdriver risks destroying the coating and permanently cracking the magnet.

Plate magnets MPL 40x7x3 / N38 are the foundation for many industrial devices, such as filters catching filings 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.

Cyanoacrylate glues (super glue type) are good only for small magnets; for larger plates, we recommend resins. 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. 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.

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 protective [NiCuNi] coating secures the magnet against corrosion.

Strengths and weaknesses of Nd₂Fe₁₄B magnets.

Strengths

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

They retain magnetic properties for almost ten years – the drop is just ~1% (according to analyses),
Magnets effectively protect themselves against loss of magnetization caused by external fields,
A magnet with a metallic nickel surface is more attractive,
Neodymium magnets ensure maximum magnetic induction on a their surface, which ensures high operational effectiveness,
Through (appropriate) combination of ingredients, they can achieve high thermal strength, allowing for functioning at temperatures reaching 230°C and above...
In view of the possibility of flexible shaping and adaptation to specialized needs, NdFeB magnets can be produced in a wide range of forms and dimensions, which makes them more universal,
Wide application in electronics industry – they are utilized in hard drives, brushless drives, advanced medical instruments, and industrial machines.
Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in tiny dimensions, which makes them useful in miniature devices

Cons

Disadvantages of NdFeB magnets:

To avoid cracks upon strong impacts, we recommend using special steel holders. Such a solution secures the magnet and simultaneously improves its durability.
Neodymium magnets lose their force under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
When exposed to humidity, magnets start to rust. To use them in conditions outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which prevent oxidation and corrosion.
Limited possibility of producing threads in the magnet and complex forms - recommended is casing - magnetic holder.
Possible danger related to microscopic parts of magnets are risky, when accidentally swallowed, which is particularly important in the aspect of protecting the youngest. Additionally, tiny parts of these products can complicate diagnosis medical after entering the body.
High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which can limit application in large quantities

Lifting parameters

Breakaway strength of the magnet in ideal conditions – what contributes to it?

Information about lifting capacity was determined for optimal configuration, taking into account:

using a sheet made of high-permeability steel, serving as a magnetic yoke
whose transverse dimension is min. 10 mm
with an ideally smooth touching surface
without any insulating layer between the magnet and steel
during pulling in a direction vertical to the mounting surface
in neutral thermal conditions

Magnet lifting force in use – key factors

In real-world applications, the actual lifting capacity results from a number of factors, listed from the most important:

Distance – the presence of any layer (paint, tape, air) interrupts the magnetic circuit, which lowers capacity steeply (even by 50% at 0.5 mm).
Direction of force – highest force is reached only during perpendicular pulling. The resistance to sliding of the magnet along the surface is usually several times smaller (approx. 1/5 of the lifting capacity).
Base massiveness – too thin steel does not close the flux, causing part of the power to be escaped to the other side.
Steel type – mild steel attracts best. Alloy steels reduce magnetic properties and lifting capacity.
Surface condition – ground elements guarantee perfect abutment, which increases field saturation. Rough surfaces weaken the grip.
Heat – NdFeB sinters have a sensitivity to temperature. At higher temperatures they lose power, and at low temperatures they can be stronger (up to a certain limit).

Lifting capacity testing was conducted on plates with a smooth surface of optimal thickness, under perpendicular forces, in contrast under parallel forces the load capacity is reduced by as much as fivefold. Additionally, even a slight gap between the magnet and the plate decreases the lifting capacity.

H&S for magnets

Magnetic media

Avoid bringing magnets close to a wallet, laptop, or TV. The magnetism can permanently damage these devices and erase data from cards.

Operating temperature

Standard neodymium magnets (N-type) undergo demagnetization when the temperature exceeds 80°C. The loss of strength is permanent.

Fire risk

Combustion risk: Rare earth powder is explosive. Avoid machining magnets in home conditions as this risks ignition.

Medical interference

Life threat: Strong magnets can deactivate pacemakers and defibrillators. Stay away if you have electronic implants.

Crushing risk

Risk of injury: The pulling power is so great that it can cause blood blisters, crushing, and broken bones. Use thick gloves.

GPS and phone interference

Remember: neodymium magnets produce a field that interferes with sensitive sensors. Keep a safe distance from your phone, tablet, and GPS.

Risk of cracking

Neodymium magnets are ceramic materials, meaning they are prone to chipping. Collision of two magnets will cause them shattering into small pieces.

Immense force

Use magnets with awareness. Their immense force can shock even professionals. Stay alert and do not underestimate their power.

Danger to the youngest

Always keep magnets out of reach of children. Choking hazard is high, and the consequences of magnets clamping inside the body are very dangerous.

Avoid contact if allergic

Studies show that nickel (standard magnet coating) is a potent allergen. If you have an allergy, refrain from direct skin contact or choose versions in plastic housing.

Security! Looking for details? Check our post: Are neodymium magnets dangerous?

MPL 40x7x3 / N38 - lamellar magnet

Physical properties - MPL 40x7x3 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering modeling of the magnet - report

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

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

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

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

Table 5: Working in heat (stability) - power drop MPL 40x7x3 / N38

Table 6: Magnet-Magnet interaction (attraction) - field collision MPL 40x7x3 / N38

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

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

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

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

Table 11: Submerged application MPL 40x7x3 / N38

1. Wall mount (shear)

2. Efficiency vs thickness

3. Thermal stability

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

Chemical composition

Environmental data

Magnet pull force

Field Strength

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Strengths and weaknesses of Nd2Fe14B magnets.

Strengths

Cons

Lifting parameters

Breakaway strength of the magnet in ideal conditions – what contributes to it?

Magnet lifting force in use – key factors

H&S for magnets

Magnetic media

Operating temperature

Fire risk

Medical interference

Crushing risk

GPS and phone interference

Risk of cracking

Immense force

Danger to the youngest

Avoid contact if allergic

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

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

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

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

Table 5: Working in heat (stability) - power drop
MPL 40x7x3 / N38

Table 6: Magnet-Magnet interaction (attraction) - field collision
MPL 40x7x3 / N38

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

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

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

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

Table 11: Submerged application
MPL 40x7x3 / N38

Strengths and weaknesses of Nd₂Fe₁₄B magnets.