Product available Ships tomorrow

MPL 30x20x5 / 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 020143

GTIN/EAN: 5906301811497

5.00

length

30 mm [±0,1 mm]

Width

20 mm [±0,1 mm]

Height

5 mm [±0,1 mm]

Weight

22.5 g

Magnetization Direction

↑ axial

Load capacity

8.86 kg / 86.90 N

Magnetic Induction

220.03 mT / 2200 Gs

Coating

[NiCuNi] Nickel

product specifications »

9.10 ZŁ with VAT / pcs + price for transport

7.40 ZŁ net + 23% VAT / pcs

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Physical properties - MPL 30x20x5 / N38 - lamellar magnet

Specification / characteristics - MPL 30x20x5 / N38 - lamellar magnet

properties

properties	values
Cat. no.	020143
GTIN/EAN	5906301811497
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	30 mm [±0,1 mm]
Width	20 mm [±0,1 mm]
Height	5 mm [±0,1 mm]
Weight	22.5 g
Magnetization Direction	↑ axial
Load capacity ~ ?	8.86 kg / 86.90 N
Magnetic Induction ~ ?	220.03 mT / 2200 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 30x20x5 / 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 analysis of the magnet - data

These values are the direct effect of a physical calculation. Results rely on algorithms for the class Nd₂Fe₁₄B. Real-world parameters may differ from theoretical values. Please consider these data as a preliminary roadmap for designers.

Table 1: Static pull force (force vs gap) - power drop
MPL 30x20x5 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	2200 Gs 220.0 mT	8.86 kg / 19.53 pounds 8860.0 g / 86.9 N	strong
1 mm	2092 Gs 209.2 mT	8.01 kg / 17.67 pounds 8013.9 g / 78.6 N	strong
2 mm	1961 Gs 196.1 mT	7.04 kg / 15.53 pounds 7042.1 g / 69.1 N	strong
3 mm	1817 Gs 181.7 mT	6.04 kg / 13.32 pounds 6041.8 g / 59.3 N	strong
5 mm	1516 Gs 151.6 mT	4.21 kg / 9.28 pounds 4209.6 g / 41.3 N	strong
10 mm	892 Gs 89.2 mT	1.46 kg / 3.21 pounds 1456.2 g / 14.3 N	weak grip
15 mm	519 Gs 51.9 mT	0.49 kg / 1.09 pounds 492.4 g / 4.8 N	weak grip
20 mm	313 Gs 31.3 mT	0.18 kg / 0.40 pounds 179.8 g / 1.8 N	weak grip
30 mm	132 Gs 13.2 mT	0.03 kg / 0.07 pounds 31.9 g / 0.3 N	weak grip
50 mm	37 Gs 3.7 mT	0.00 kg / 0.01 pounds 2.5 g / 0.0 N	weak grip

Grip strength drops drastically with every mm of spacing. Keep in mind that even the smallest gap (e.g., dirt, paint, rust) noticeably diminishes the holding power. Magnetic products hold optimally during direct contact; air break weakens the power. See how rapidly the parameters fall, when the product does not touch tightly to the steel surface. When designing the assembly, eliminate unnecessary gaps.

Table 2: Vertical load (vertical surface)
MPL 30x20x5 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	1.77 kg / 3.91 pounds 1772.0 g / 17.4 N
1 mm	Stal (~0.2)	1.60 kg / 3.53 pounds 1602.0 g / 15.7 N
2 mm	Stal (~0.2)	1.41 kg / 3.10 pounds 1408.0 g / 13.8 N
3 mm	Stal (~0.2)	1.21 kg / 2.66 pounds 1208.0 g / 11.9 N
5 mm	Stal (~0.2)	0.84 kg / 1.86 pounds 842.0 g / 8.3 N
10 mm	Stal (~0.2)	0.29 kg / 0.64 pounds 292.0 g / 2.9 N
15 mm	Stal (~0.2)	0.10 kg / 0.22 pounds 98.0 g / 1.0 N
20 mm	Stal (~0.2)	0.04 kg / 0.08 pounds 36.0 g / 0.4 N
30 mm	Stal (~0.2)	0.01 kg / 0.01 pounds 6.0 g / 0.1 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N

The table below calculates the theoretical shear load required to initiate the sliding of the magnet downwards along a upright steel plate (assuming typical friction). The holding force depends on the air gap between the magnet and the surface.

Table 3: Wall mounting (shearing) - vertical pull
MPL 30x20x5 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	2.66 kg / 5.86 pounds 2658.0 g / 26.1 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	1.77 kg / 3.91 pounds 1772.0 g / 17.4 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.89 kg / 1.95 pounds 886.0 g / 8.7 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	4.43 kg / 9.77 pounds 4430.0 g / 43.5 N

When hanging a magnet on a upright surface (e.g., a board), it you can count on only about 20%-30% of nominal attraction strength. Gravity as well as a weak degree of grip mean that magnets slip easier than they pop off the substrate. Designing a wall mount? Note that the shear force is much weaker than the maximum static pull force. On a painted metal, the holder will slip down under a much lighter cargo. Utilizing a rubberized coating can significantly raise the stability.

Table 4: Material efficiency (substrate influence) - power losses
MPL 30x20x5 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.89 kg / 1.95 pounds 886.0 g / 8.7 N
1 mm	25%	2.22 kg / 4.88 pounds 2215.0 g / 21.7 N
2 mm	50%	4.43 kg / 9.77 pounds 4430.0 g / 43.5 N
3 mm	75%	6.65 kg / 14.65 pounds 6645.0 g / 65.2 N
5 mm	100%	8.86 kg / 19.53 pounds 8860.0 g / 86.9 N
10 mm	100%	8.86 kg / 19.53 pounds 8860.0 g / 86.9 N
11 mm	100%	8.86 kg / 19.53 pounds 8860.0 g / 86.9 N
12 mm	100%	8.86 kg / 19.53 pounds 8860.0 g / 86.9 N

A thin sheet is incapable of focus the full magnetic flux, which squanders power of the magnet. If you install a neodymium to a thin surface, the field will pass right through and the pull force will drop sharply. To utilize 100% of this magnet's potential, you require a sufficiently solid piece of steel. The saturation phenomenon means that on sheet metal structures (e.g., appliance housings), the product works worse. We recommend selecting the steel dimension from these parameters.

Table 5: Thermal stability (stability) - thermal limit
MPL 30x20x5 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	8.86 kg / 19.53 pounds 8860.0 g / 86.9 N	OK
40 °C	-2.2%	8.67 kg / 19.10 pounds 8665.1 g / 85.0 N	OK
60 °C	-4.4%	8.47 kg / 18.67 pounds 8470.2 g / 83.1 N
80 °C	-6.6%	8.28 kg / 18.24 pounds 8275.2 g / 81.2 N
100 °C	-28.8%	6.31 kg / 13.91 pounds 6308.3 g / 61.9 N

Ordinary NdFeB products irreversibly lose power past the thermal threshold. Watch out for overheating – high temperature can irreversibly demagnetize this product. With increasing heat, the neodymium's capacity briefly decreases. Avoid using this magnet close to ovens exceeding its safe range. Too high temperature will cause destruction of magnetic properties.

*Technical advisory: Temperature resistance depends not only on the material grade, as well as the dimension ratios. Flat magnets (pancake types) risk losing magnetic properties under lower heat stress than long magnets. Warning indicator in the table indicates a risk of irreversible loss for this specific geometry.

Table 6: Magnet-Magnet interaction (attraction) - field range
MPL 30x20x5 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	17.90 kg / 39.47 pounds 3 715 Gs	2.69 kg / 5.92 pounds 2685 g / 26.3 N	N/A
1 mm	17.10 kg / 37.69 pounds 4 300 Gs	2.56 kg / 5.65 pounds 2565 g / 25.2 N	15.39 kg / 33.92 pounds ~0 Gs
2 mm	16.19 kg / 35.70 pounds 4 184 Gs	2.43 kg / 5.35 pounds 2429 g / 23.8 N	14.57 kg / 32.13 pounds ~0 Gs
3 mm	15.23 kg / 33.57 pounds 4 058 Gs	2.28 kg / 5.04 pounds 2284 g / 22.4 N	13.71 kg / 30.22 pounds ~0 Gs
5 mm	13.22 kg / 29.14 pounds 3 780 Gs	1.98 kg / 4.37 pounds 1982 g / 19.4 N	11.89 kg / 26.22 pounds ~0 Gs
10 mm	8.51 kg / 18.75 pounds 3 033 Gs	1.28 kg / 2.81 pounds 1276 g / 12.5 N	7.66 kg / 16.88 pounds ~0 Gs
20 mm	2.94 kg / 6.49 pounds 1 784 Gs	0.44 kg / 0.97 pounds 441 g / 4.3 N	2.65 kg / 5.84 pounds ~0 Gs
50 mm	0.15 kg / 0.32 pounds 398 Gs	0.02 kg / 0.05 pounds 22 g / 0.2 N	0.13 kg / 0.29 pounds ~0 Gs
60 mm	0.06 kg / 0.14 pounds 264 Gs	0.01 kg / 0.02 pounds 10 g / 0.1 N	0.06 kg / 0.13 pounds ~0 Gs
70 mm	0.03 kg / 0.07 pounds 183 Gs	0.00 kg / 0.01 pounds 5 g / 0.0 N	0.03 kg / 0.06 pounds ~0 Gs
80 mm	0.02 kg / 0.04 pounds 131 Gs	0.00 kg / 0.01 pounds 2 g / 0.0 N	0.01 kg / 0.03 pounds ~0 Gs
90 mm	0.01 kg / 0.02 pounds 97 Gs	0.00 kg / 0.00 pounds 1 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
100 mm	0.00 kg / 0.01 pounds 73 Gs	0.00 kg / 0.00 pounds 1 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs

Two magnets interact from a wider radius than a magnet and steel setup. The setup of magnet-to-magnet generates a stronger field and a larger range of action. Want to build a strong closure? Use a pair of magnets instead of one magnet and a striker plate. Remember that when attracting two neodymiums, the impact force is extreme. The repulsion force is slightly lower than the attraction, but still large.
*Field value for N-N configuration drops to ~0 Gs in the exact middle between the magnets (caused by magnetic field nullification).
* Calculations refer to shear force of a pair of matching neodymium magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Protective zones (electronics) - precautionary measures
MPL 30x20x5 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	10.5 cm
Hearing aid	10 Gs (1.0 mT)	8.5 cm
Mechanical watch	20 Gs (2.0 mT)	6.5 cm
Phone / Smartphone	40 Gs (4.0 mT)	5.0 cm
Remote	50 Gs (5.0 mT)	4.5 cm
Payment card	400 Gs (40.0 mT)	2.0 cm
HDD hard drive	600 Gs (60.0 mT)	1.5 cm

Extremely neodym field is a large risk to IT equipment as well as medical implants. These magnets produce a field that prevents correct functioning of sensitive medical devices. Be aware: the invisible magnetic field acts through matter and glass. Special caution must be exercised by people with hearing aids and drug dispensers. Also at risk are: mechanical watches, remotes, speakers, and displays. Avoid contact with magnetic cards, HDD media, or precise measuring instruments.

Table 8: Impact energy (kinetic energy) - collision effects
MPL 30x20x5 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	21.97 km/h (6.10 m/s)	0.42 J
30 mm	34.74 km/h (9.65 m/s)	1.05 J
50 mm	44.76 km/h (12.43 m/s)	1.74 J
100 mm	63.29 km/h (17.58 m/s)	3.48 J

NdFeB products are prone to chipping – a violent impact against metal can result in shattering. Pay attention to connection velocity – a magnet released freely speeds with massive force. Striking energy can destroy the magnet or painful pinches to skin. Always hold the magnet during mounting so it doesn't hit with great force against the steel surface. A collision at high speed means shattering of the neodymium. Wear safety glasses when working with powerful specimens.

Table 9: Surface protection spec
MPL 30x20x5 / 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. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Electrical data (Flux)
MPL 30x20x5 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	14 969 Mx	149.7 µWb
P_c Coefficient	0.26	Low (Flat)

Flux value passing through the magnet pole. Essential parameter when building generators as well as sensors. The P_c coefficient determines the working geometry.

Table 11: Hydrostatics and buoyancy
MPL 30x20x5 / N38

Environment	Effective steel pull	Effect
Air (land)	8.86 kg	Standard
Water (riverbed)	10.14 kg (+1.28 kg buoyancy gain)	+14.5%

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

Water displaces steel, making heavy objects slightly lighter. However, remember the water resistance when pulling the rope quickly.

1. Wall mount (shear)

*Caution: On a vertical surface, the magnet holds only a fraction of its nominal pull.

2. Efficiency vs thickness

*Thin steel (e.g. 0.5mm PC case) drastically 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) = 0.26

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.

Engineering data and GPSR

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%

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: 020143-2026

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This product is an extremely strong magnet in the shape of a plate made of NdFeB material, which, with dimensions of 30x20x5 mm and a weight of 22.5 g, guarantees premium class connection. As a magnetic bar with high power (approx. 8.86 kg), this product is available immediately from our warehouse in Poland. The durable anti-corrosion layer ensures a long lifespan in a dry environment, protecting the core from oxidation.

The key to success is sliding the magnets along their largest connection plane (using e.g., the edge of a table), which is easier than trying to tear them apart directly. To separate the MPL 30x20x5 / N38 model, firmly slide one magnet over the edge of the other until the attraction force decreases. We recommend care, because after separation, the magnets may want to violently snap back together, which threatens pinching the skin. Using a screwdriver risks destroying the coating and permanently cracking the magnet.

They constitute a key element in the production of wind generators and material handling systems. Thanks to the flat surface and high force (approx. 8.86 kg), they are ideal as closers in furniture making and mounting elements in automation. 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. In practice, this means that this magnet has the greatest attraction force on its main planes (30x20 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 30x20x5 mm, which, at a weight of 22.5 g, makes it an element with impressive energy density. It is a magnetic block with dimensions 30x20x5 mm and a self-weight of 22.5 g, ready to work at temperatures up to 80°C. The product meets the standards for N38 grade magnets.

Advantages as well as disadvantages of neodymium magnets.

Benefits

Besides their high retention, neodymium magnets are valued for these benefits:

They have stable power, and over around ten years their attraction force decreases symbolically – ~1% (according to theory),
Magnets perfectly defend themselves against demagnetization caused by foreign field sources,
The use of an shiny finish of noble metals (nickel, gold, silver) causes the element to have aesthetics,
The surface of neodymium magnets generates a concentrated magnetic field – this is a distinguishing feature,
Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
Possibility of custom creating as well as optimizing to complex applications,
Key role in high-tech industry – they are used in mass storage devices, electromotive mechanisms, medical devices, as well as multitasking production systems.
Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Disadvantages

What to avoid - cons of neodymium magnets and ways of using them

They are fragile upon too strong impacts. To avoid cracks, it is worth protecting magnets using a steel holder. Such protection not only shields the magnet but also improves its resistance to damage
When exposed to high temperature, neodymium magnets experience a drop in power. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
When exposed to humidity, magnets usually rust. To use them in conditions outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which prevent oxidation as well as corrosion.
We suggest casing - magnetic holder, due to difficulties in producing threads inside the magnet and complex shapes.
Possible danger to health – tiny shards of magnets are risky, in case of ingestion, which is particularly important in the aspect of protecting the youngest. Additionally, small components of these devices can be problematic in diagnostics medical when they are in the body.
Due to neodymium price, their price is higher than average,

Holding force characteristics

Optimal lifting capacity of a neodymium magnet – what affects it?

The specified lifting capacity concerns the peak performance, measured under ideal test conditions, specifically:

with the application of a sheet made of low-carbon steel, guaranteeing maximum field concentration
possessing a thickness of at least 10 mm to ensure full flux closure
characterized by smoothness
without the slightest air gap between the magnet and steel
for force applied at a right angle (pull-off, not shear)
at room temperature

Determinants of lifting force in real conditions

Bear in mind that the application force may be lower subject to elements below, in order of importance:

Clearance – existence of any layer (paint, tape, air) acts as an insulator, which lowers capacity steeply (even by 50% at 0.5 mm).
Force direction – catalog parameter refers to pulling vertically. When applying parallel force, the magnet exhibits much less (typically approx. 20-30% of maximum force).
Plate thickness – insufficiently thick plate causes magnetic saturation, causing part of the power to be lost into the air.
Metal type – different alloys attracts identically. High carbon content weaken the attraction effect.
Surface structure – the more even the surface, the better the adhesion and higher the lifting capacity. Unevenness acts like micro-gaps.
Temperature – temperature increase results in weakening of induction. Check the thermal limit for a given model.

Lifting capacity testing was conducted on a smooth plate of optimal thickness, under a perpendicular pulling force, whereas under shearing force the holding force is lower. In addition, even a small distance between the magnet’s surface and the plate reduces the lifting capacity.

Precautions when working with NdFeB magnets

Handling rules

Handle with care. Neodymium magnets attract from a long distance and connect with huge force, often faster than you can move away.

Danger to pacemakers

Warning for patients: Strong magnetic fields disrupt electronics. Maintain at least 30 cm distance or request help to handle the magnets.

Operating temperature

Regular neodymium magnets (N-type) lose magnetization when the temperature surpasses 80°C. This process is irreversible.

Precision electronics

Be aware: neodymium magnets produce a field that interferes with precision electronics. Keep a safe distance from your phone, device, and navigation systems.

Magnetic media

Device Safety: Strong magnets can damage payment cards and sensitive devices (pacemakers, medical aids, timepieces).

Danger to the youngest

Product intended for adults. Small elements pose a choking risk, causing intestinal necrosis. Store away from children and animals.

Mechanical processing

Fire hazard: Neodymium dust is highly flammable. Avoid machining magnets without safety gear as this risks ignition.

Beware of splinters

Beware of splinters. Magnets can explode upon violent connection, launching sharp fragments into the air. Wear goggles.

Bodily injuries

Pinching hazard: The attraction force is so immense that it can cause hematomas, pinching, and broken bones. Use thick gloves.

Nickel allergy

Studies show that the nickel plating (the usual finish) is a strong allergen. If you have an allergy, refrain from touching magnets with bare hands or select coated magnets.

Warning! Need more info? Check our post: Why are neodymium magnets dangerous?

MPL 30x20x5 / N38 - lamellar magnet

Physical properties - MPL 30x20x5 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering analysis of the magnet - data

Table 1: Static pull force (force vs gap) - power drop MPL 30x20x5 / N38

Table 2: Vertical load (vertical surface) MPL 30x20x5 / N38

Table 3: Wall mounting (shearing) - vertical pull MPL 30x20x5 / N38

Table 4: Material efficiency (substrate influence) - power losses MPL 30x20x5 / N38

Table 5: Thermal stability (stability) - thermal limit MPL 30x20x5 / N38

Table 6: Magnet-Magnet interaction (attraction) - field range MPL 30x20x5 / N38

Table 7: Protective zones (electronics) - precautionary measures MPL 30x20x5 / N38

Table 8: Impact energy (kinetic energy) - collision effects MPL 30x20x5 / N38

Table 9: Surface protection spec MPL 30x20x5 / N38

Table 10: Electrical data (Flux) MPL 30x20x5 / N38

Table 11: Hydrostatics and buoyancy MPL 30x20x5 / N38

1. Wall mount (shear)

2. Efficiency vs thickness

3. Thermal stability

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

Chemical composition

Sustainability

Magnet pull force

Magnetic Field

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Advantages as well as disadvantages of neodymium magnets.

Benefits

Disadvantages

Holding force characteristics

Optimal lifting capacity of a neodymium magnet – what affects it?

Determinants of lifting force in real conditions

Precautions when working with NdFeB magnets

Handling rules

Danger to pacemakers

Operating temperature

Precision electronics

Magnetic media

Danger to the youngest

Mechanical processing

Beware of splinters

Bodily injuries

Nickel allergy

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs gap) - power drop
MPL 30x20x5 / N38

Table 2: Vertical load (vertical surface)
MPL 30x20x5 / N38

Table 3: Wall mounting (shearing) - vertical pull
MPL 30x20x5 / N38

Table 4: Material efficiency (substrate influence) - power losses
MPL 30x20x5 / N38

Table 5: Thermal stability (stability) - thermal limit
MPL 30x20x5 / N38

Table 6: Magnet-Magnet interaction (attraction) - field range
MPL 30x20x5 / N38

Table 7: Protective zones (electronics) - precautionary measures
MPL 30x20x5 / N38

Table 8: Impact energy (kinetic energy) - collision effects
MPL 30x20x5 / N38

Table 9: Surface protection spec
MPL 30x20x5 / N38

Table 10: Electrical data (Flux)
MPL 30x20x5 / N38

Table 11: Hydrostatics and buoyancy
MPL 30x20x5 / N38