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MPL 20x20x20 / 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 020129

GTIN/EAN: 5906301811350

5.00

length

20 mm [±0,1 mm]

Width

20 mm [±0,1 mm]

Height

20 mm [±0,1 mm]

Weight

60 g

Magnetization Direction

↑ axial

Load capacity

15.40 kg / 151.12 N

Magnetic Induction

540.22 mT / 5402 Gs

Coating

[NiCuNi] Nickel

view technical specifications »

33.21 ZŁ with VAT / pcs + price for transport

27.00 ZŁ net + 23% VAT / pcs

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Specifications and form of a neodymium magnet can be verified with our modular calculator.

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Technical of the product - MPL 20x20x20 / N38 - lamellar magnet

Specification / characteristics - MPL 20x20x20 / N38 - lamellar magnet

properties

properties	values
Cat. no.	020129
GTIN/EAN	5906301811350
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	20 mm [±0,1 mm]
Width	20 mm [±0,1 mm]
Height	20 mm [±0,1 mm]
Weight	60 g
Magnetization Direction	↑ axial
Load capacity ~ ?	15.40 kg / 151.12 N
Magnetic Induction ~ ?	540.22 mT / 5402 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 20x20x20 / 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 analysis of the product - report

The following information represent the result of a engineering calculation. Results rely on models for the class Nd₂Fe₁₄B. Actual parameters might slightly differ from theoretical values. Use these calculations as a supplementary guide during assembly planning.

Table 1: Static pull force (pull vs distance) - power drop
MPL 20x20x20 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	5400 Gs 540.0 mT	15.40 kg / 33.95 LBS 15400.0 g / 151.1 N	crushing
1 mm	4910 Gs 491.0 mT	12.73 kg / 28.07 LBS 12732.2 g / 124.9 N	crushing
2 mm	4423 Gs 442.3 mT	10.33 kg / 22.77 LBS 10328.3 g / 101.3 N	crushing
3 mm	3955 Gs 395.5 mT	8.26 kg / 18.21 LBS 8258.3 g / 81.0 N	medium risk
5 mm	3114 Gs 311.4 mT	5.12 kg / 11.29 LBS 5120.3 g / 50.2 N	medium risk
10 mm	1671 Gs 167.1 mT	1.48 kg / 3.25 LBS 1475.0 g / 14.5 N	weak grip
15 mm	936 Gs 93.6 mT	0.46 kg / 1.02 LBS 463.0 g / 4.5 N	weak grip
20 mm	562 Gs 56.2 mT	0.17 kg / 0.37 LBS 167.1 g / 1.6 N	weak grip
30 mm	244 Gs 24.4 mT	0.03 kg / 0.07 LBS 31.3 g / 0.3 N	weak grip
50 mm	73 Gs 7.3 mT	0.00 kg / 0.01 LBS 2.8 g / 0.0 N	weak grip

Grip strength drops significantly with every mm of distance. Keep in mind that even a microscopic distance (e.g., contamination, paint, rust) significantly weakens the grip. Magnets operate most effectively in perfect adhesion; distance weakens the force. Observe how quickly the load capacity plummet, when the product does not adhere directly to the metal substrate. When calculating the assembly, discard unnecessary gaps.

Table 2: Slippage hold (vertical surface)
MPL 20x20x20 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	3.08 kg / 6.79 LBS 3080.0 g / 30.2 N
1 mm	Stal (~0.2)	2.55 kg / 5.61 LBS 2546.0 g / 25.0 N
2 mm	Stal (~0.2)	2.07 kg / 4.55 LBS 2066.0 g / 20.3 N
3 mm	Stal (~0.2)	1.65 kg / 3.64 LBS 1652.0 g / 16.2 N
5 mm	Stal (~0.2)	1.02 kg / 2.26 LBS 1024.0 g / 10.0 N
10 mm	Stal (~0.2)	0.30 kg / 0.65 LBS 296.0 g / 2.9 N
15 mm	Stal (~0.2)	0.09 kg / 0.20 LBS 92.0 g / 0.9 N
20 mm	Stal (~0.2)	0.03 kg / 0.07 LBS 34.0 g / 0.3 N
30 mm	Stal (~0.2)	0.01 kg / 0.01 LBS 6.0 g / 0.1 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 0.0 g / 0.0 N

The following data shows the approximate holding capacity required to initiate the slippage of the magnet downwards along a vertical metal surface (considering standard friction). This value depends on the air gap between the magnet and the surface.

Table 3: Vertical assembly (sliding) - vertical pull
MPL 20x20x20 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	4.62 kg / 10.19 LBS 4620.0 g / 45.3 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	3.08 kg / 6.79 LBS 3080.0 g / 30.2 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	1.54 kg / 3.40 LBS 1540.0 g / 15.1 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	7.70 kg / 16.98 LBS 7700.0 g / 75.5 N

When hanging a magnet on a upright wall (e.g., a fridge), it will maintain just approx. 20%-30% of nominal attraction strength. Gravitational force as well as a weak degree of grip cause that magnets slip easier than they pull off. Planning a wall mount? Note that the sliding force is significantly lower than the perpendicular breakaway force. On a smooth steel, the holder will slip down under a noticeably lighter cargo. Utilizing a rubberized pad can effectively raise the stability.

Table 4: Material efficiency (substrate influence) - power losses
MPL 20x20x20 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	5%	0.77 kg / 1.70 LBS 770.0 g / 7.6 N
1 mm	13%	1.93 kg / 4.24 LBS 1925.0 g / 18.9 N
2 mm	25%	3.85 kg / 8.49 LBS 3850.0 g / 37.8 N
3 mm	38%	5.78 kg / 12.73 LBS 5775.0 g / 56.7 N
5 mm	63%	9.63 kg / 21.22 LBS 9625.0 g / 94.4 N
10 mm	100%	15.40 kg / 33.95 LBS 15400.0 g / 151.1 N
11 mm	100%	15.40 kg / 33.95 LBS 15400.0 g / 151.1 N
12 mm	100%	15.40 kg / 33.95 LBS 15400.0 g / 151.1 N

A too thin steel is not enough to focus the entire magnetic field, which squanders power of the holder. If you mount a strong magnet to a thin surface, the magnetism will penetrate right through and the pull force will drop sharply. To achieve the maximum of this neodymium's power, you require a sufficiently solid backing of steel. The material oversaturation causes that on delicate walls (e.g., car bodies), the product works worse. We advise picking the steel thickness from these parameters.

Table 5: Thermal resistance (material behavior) - thermal limit
MPL 20x20x20 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	15.40 kg / 33.95 LBS 15400.0 g / 151.1 N	OK
40 °C	-2.2%	15.06 kg / 33.20 LBS 15061.2 g / 147.8 N	OK
60 °C	-4.4%	14.72 kg / 32.46 LBS 14722.4 g / 144.4 N	OK
80 °C	-6.6%	14.38 kg / 31.71 LBS 14383.6 g / 141.1 N
100 °C	-28.8%	10.96 kg / 24.17 LBS 10964.8 g / 107.6 N

Classic neodymiums lose strength above the temperature limit. Watch out for overheating – high temperature can permanently demagnetize this product. With every degree above norm, the magnet's capacity momentarily drops. Avoid using this magnet close to heaters higher than its working range. Ignoring the limit will cause permanent loss of magnetism.

*Technical advisory: Temperature resistance depends not only on the material grade, and the Permeance Coefficient Pc. Flat magnets (pancake types) risk losing magnetic properties at lower temperatures than long magnets. The danger warning in the table indicates a risk of irreversible loss for this specific geometry.

Table 6: Two magnets (repulsion) - forces in the system
MPL 20x20x20 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	71.92 kg / 158.55 LBS 5 962 Gs	10.79 kg / 23.78 LBS 10787 g / 105.8 N	N/A
1 mm	65.60 kg / 144.63 LBS 10 316 Gs	9.84 kg / 21.69 LBS 9840 g / 96.5 N	59.04 kg / 130.16 LBS ~0 Gs
2 mm	59.46 kg / 131.08 LBS 9 821 Gs	8.92 kg / 19.66 LBS 8919 g / 87.5 N	53.51 kg / 117.97 LBS ~0 Gs
3 mm	53.66 kg / 118.30 LBS 9 329 Gs	8.05 kg / 17.74 LBS 8049 g / 79.0 N	48.29 kg / 106.47 LBS ~0 Gs
5 mm	43.20 kg / 95.24 LBS 8 371 Gs	6.48 kg / 14.29 LBS 6480 g / 63.6 N	38.88 kg / 85.71 LBS ~0 Gs
10 mm	23.91 kg / 52.72 LBS 6 228 Gs	3.59 kg / 7.91 LBS 3587 g / 35.2 N	21.52 kg / 47.44 LBS ~0 Gs
20 mm	6.89 kg / 15.19 LBS 3 343 Gs	1.03 kg / 2.28 LBS 1033 g / 10.1 N	6.20 kg / 13.67 LBS ~0 Gs
50 mm	0.32 kg / 0.71 LBS 721 Gs	0.05 kg / 0.11 LBS 48 g / 0.5 N	0.29 kg / 0.64 LBS ~0 Gs
60 mm	0.15 kg / 0.32 LBS 487 Gs	0.02 kg / 0.05 LBS 22 g / 0.2 N	0.13 kg / 0.29 LBS ~0 Gs
70 mm	0.07 kg / 0.16 LBS 344 Gs	0.01 kg / 0.02 LBS 11 g / 0.1 N	0.07 kg / 0.14 LBS ~0 Gs
80 mm	0.04 kg / 0.09 LBS 251 Gs	0.01 kg / 0.01 LBS 6 g / 0.1 N	0.04 kg / 0.08 LBS ~0 Gs
90 mm	0.02 kg / 0.05 LBS 189 Gs	0.00 kg / 0.01 LBS 3 g / 0.0 N	0.02 kg / 0.04 LBS ~0 Gs
100 mm	0.01 kg / 0.03 LBS 146 Gs	0.00 kg / 0.00 LBS 2 g / 0.0 N	0.01 kg / 0.03 LBS ~0 Gs

Two magnets interact from a much further distance than a magnet and steel combination. The setup of two magnets creates a more powerful interaction and a further horizon of performance. Designing a strong closure? Apply two magnets instead of a neodymium and a striker plate. Be careful that when bringing together two magnets, the pinch force is huge. The levitation is a bit weaker than the connection force, but still large.
*Flux density in repulsion mode reaches ~0 Gs at the midpoint of the gap (caused by magnetic field nullification).
* Estimates demonstrate sliding force of dual matching magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Safety (HSE) (electronics) - warnings
MPL 20x20x20 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	14.0 cm
Hearing aid	10 Gs (1.0 mT)	11.0 cm
Mechanical watch	20 Gs (2.0 mT)	8.5 cm
Phone / Smartphone	40 Gs (4.0 mT)	6.5 cm
Remote	50 Gs (5.0 mT)	6.0 cm
Payment card	400 Gs (40.0 mT)	2.5 cm
HDD hard drive	600 Gs (60.0 mT)	2.0 cm

A strong magnetic field is a real danger to electronic devices as well as medical implants. These NdFeB products produce a flux that disrupts operation of sensitive medical devices. Remember: the unseen radiation acts through matter and housings. Exceptional care must be exercised by people with hearing aids and insulin pumps. The risk also applies to: automatic timepieces, car keys, speakers, and displays. Avoid contact with magnetic cards, hard drives, or precise measuring instruments.

Table 8: Dynamics (kinetic energy) - warning
MPL 20x20x20 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	17.10 km/h (4.75 m/s)	0.68 J
30 mm	28.02 km/h (7.78 m/s)	1.82 J
50 mm	36.13 km/h (10.04 m/s)	3.02 J
100 mm	51.09 km/h (14.19 m/s)	6.04 J

Magnetic elements are delicate – a collision with steel causes immediate chipping. Pay attention to connection velocity – 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 slam with momentum against the metal. A contact at a velocity of dozens of km/h almost guarantees destruction of the magnet. Wear safety glasses when handling with large magnets.

Table 9: Surface protection spec
MPL 20x20x20 / 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 20x20x20 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	22 017 Mx	220.2 µWb
P_c Coefficient	0.84	High (Stable)

Flux value emitted by the magnet pole. Key data in coil applications and motors. The P_c coefficient defines the working geometry.

Table 11: Physics of underwater searching
MPL 20x20x20 / N38

Environment	Effective steel pull	Effect
Air (land)	15.40 kg	Standard
Water (riverbed)	17.63 kg (+2.23 kg buoyancy gain)	+14.5%

Rust risk: 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. Buoyancy helps in lifting finds.

1. Shear force

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

2. Efficiency vs thickness

*Thin metal sheet (e.g. 0.5mm PC case) drastically limits the holding force.

3. Thermal stability

*For N38 material, 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) = 0.84

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 and environmental data

Material specification

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: 020129-2026

Magnet Unit Converter

Force (pull)

Force in kg

Pounds (lbs)

Magnetic Field

Gauss (Gs)

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Model MPL 20x20x20 / N38 features a flat shape and industrial pulling force, making it a perfect solution for building separators and machines. This magnetic block with a force of 151.12 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.

Separating block magnets requires a technique based on sliding (moving one relative to the other), rather than forceful pulling apart. To separate the MPL 20x20x20 / 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.

Plate magnets MPL 20x20x20 / N38 are the foundation for many industrial devices, such as filters catching filings and linear motors. Thanks to the flat surface and high force (approx. 15.40 kg), they are ideal as hidden locks in furniture making and mounting elements in automation. Customers often choose this model for workshop organization on strips and for advanced DIY and modeling projects, where precision and power count.

Cyanoacrylate glues (super glue type) are good only for small magnets; for larger plates, we recommend resins. Double-sided tape cushions vibrations, which is an advantage when mounting in moving elements. 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.

The presented product is a neodymium magnet with precisely defined parameters: 20 mm (length), 20 mm (width), and 20 mm (thickness). The key parameter here is the holding force amounting to approximately 15.40 kg (force ~151.12 N), which, with such a compact shape, proves the high grade of the material. The protective [NiCuNi] coating secures the magnet against corrosion.

Strengths as well as weaknesses of neodymium magnets.

Strengths

Besides their immense strength, neodymium magnets offer the following advantages:

They retain full power for nearly ten years – the drop is just ~1% (according to analyses),
Neodymium magnets are characterized by remarkably resistant to magnetic field loss caused by external interference,
In other words, due to the metallic surface of gold, the element is aesthetically pleasing,
Neodymium magnets generate maximum magnetic induction on a small surface, which increases force concentration,
Through (appropriate) combination of ingredients, they can achieve high thermal resistance, allowing for operation at temperatures reaching 230°C and above...
Possibility of individual modeling as well as optimizing to atypical needs,
Versatile presence in electronics industry – they are commonly used in computer drives, brushless drives, advanced medical instruments, and other advanced devices.
Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Weaknesses

Disadvantages of neodymium magnets:

They are fragile upon heavy impacts. To avoid cracks, it is worth protecting magnets in a protective case. Such protection not only protects the magnet but also increases its resistance to damage
We warn that neodymium magnets can lose their strength at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
Magnets exposed to a humid environment can rust. Therefore during using outdoors, we recommend using waterproof magnets made of rubber, plastic or other material resistant to moisture
We recommend cover - magnetic mechanism, due to difficulties in producing nuts inside the magnet and complex shapes.
Potential hazard resulting from small fragments of magnets are risky, if swallowed, which gains importance in the context of child health protection. Furthermore, small elements of these devices can complicate diagnosis medical in case of swallowing.
Due to neodymium price, their price is relatively high,

Holding force characteristics

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

The declared magnet strength refers to the peak performance, obtained under ideal test conditions, meaning:

using a sheet made of mild steel, serving as a ideal flux conductor
possessing a thickness of at least 10 mm to avoid saturation
with a surface perfectly flat
under conditions of no distance (surface-to-surface)
under vertical force vector (90-degree angle)
at temperature room level

Magnet lifting force in use – key factors

Real force is affected by working environment parameters, mainly (from priority):

Space between magnet and steel – every millimeter of separation (caused e.g. by veneer or dirt) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
Angle of force application – highest force is obtained only during perpendicular pulling. The shear force of the magnet along the surface is typically several times smaller (approx. 1/5 of the lifting capacity).
Substrate thickness – for full efficiency, the steel must be adequately massive. Thin sheet limits the attraction force (the magnet "punches through" it).
Plate material – mild steel gives the best results. Alloy admixtures decrease magnetic permeability and holding force.
Surface condition – ground elements guarantee perfect abutment, which increases field saturation. Rough surfaces weaken the grip.
Heat – neodymium magnets have a negative temperature coefficient. At higher temperatures they lose power, and in frost 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 perpendicular pulling force, however under parallel forces the holding force is lower. Additionally, even a small distance between the magnet and the plate decreases the holding force.

Safe handling of NdFeB magnets

Impact on smartphones

Navigation devices and smartphones are extremely sensitive to magnetism. Direct contact with a powerful NdFeB magnet can permanently damage the internal compass in your phone.

Protective goggles

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

Nickel allergy

It is widely known that the nickel plating (the usual finish) is a common allergen. If you have an allergy, refrain from direct skin contact or select coated magnets.

Heat warning

Watch the temperature. Exposing the magnet above 80 degrees Celsius will permanently weaken its magnetic structure and pulling force.

No play value

NdFeB magnets are not toys. Eating a few magnets may result in them attracting across intestines, which poses a severe health hazard and requires urgent medical intervention.

Machining danger

Fire hazard: Rare earth powder is highly flammable. Avoid machining magnets without safety gear as this may cause fire.

Life threat

Health Alert: Neodymium magnets can deactivate heart devices and defibrillators. Stay away if you have electronic implants.

Magnetic media

Device Safety: Strong magnets can ruin payment cards and sensitive devices (heart implants, hearing aids, timepieces).

Conscious usage

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

Bone fractures

Watch your fingers. Two powerful magnets will join immediately with a force of several hundred kilograms, destroying anything in their path. Be careful!

Important! More info about hazards in the article: Magnet Safety Guide.

MPL 20x20x20 / N38 - lamellar magnet

Technical of the product - MPL 20x20x20 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical analysis of the product - report

Table 1: Static pull force (pull vs distance) - power drop MPL 20x20x20 / N38

Table 2: Slippage hold (vertical surface) MPL 20x20x20 / N38

Table 3: Vertical assembly (sliding) - vertical pull MPL 20x20x20 / N38

Table 4: Material efficiency (substrate influence) - power losses MPL 20x20x20 / N38

Table 5: Thermal resistance (material behavior) - thermal limit MPL 20x20x20 / N38

Table 6: Two magnets (repulsion) - forces in the system MPL 20x20x20 / N38

Table 7: Safety (HSE) (electronics) - warnings MPL 20x20x20 / N38

Table 8: Dynamics (kinetic energy) - warning MPL 20x20x20 / N38

Table 9: Surface protection spec MPL 20x20x20 / N38

Table 10: Construction data (Flux) MPL 20x20x20 / N38

Table 11: Physics of underwater searching MPL 20x20x20 / N38

1. Shear force

2. Efficiency vs thickness

3. Thermal stability

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

Material specification

Sustainability

Force (pull)

Magnetic Field

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Strengths as well as weaknesses of neodymium magnets.

Strengths

Weaknesses

Holding force characteristics

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

Magnet lifting force in use – key factors

Safe handling of NdFeB magnets

Impact on smartphones

Protective goggles

Nickel allergy

Heat warning

No play value

Machining danger

Life threat

Magnetic media

Conscious usage

Bone fractures

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (pull vs distance) - power drop
MPL 20x20x20 / N38

Table 2: Slippage hold (vertical surface)
MPL 20x20x20 / N38

Table 3: Vertical assembly (sliding) - vertical pull
MPL 20x20x20 / N38

Table 4: Material efficiency (substrate influence) - power losses
MPL 20x20x20 / N38

Table 5: Thermal resistance (material behavior) - thermal limit
MPL 20x20x20 / N38

Table 6: Two magnets (repulsion) - forces in the system
MPL 20x20x20 / N38

Table 7: Safety (HSE) (electronics) - warnings
MPL 20x20x20 / N38

Table 8: Dynamics (kinetic energy) - warning
MPL 20x20x20 / N38

Table 9: Surface protection spec
MPL 20x20x20 / N38

Table 10: Construction data (Flux)
MPL 20x20x20 / N38

Table 11: Physics of underwater searching
MPL 20x20x20 / N38