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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

see properties »

33.21 ZŁ with VAT / pcs + price for transport

27.00 ZŁ net + 23% VAT / pcs

bulk discounts:

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Carbon Footprint – environmental impact GPSR Regulation – product safety

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Specifications and form of a neodymium magnet can be tested 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

Technical modeling of the assembly - data

These data represent the result of a engineering calculation. Values were calculated on models for the material Nd₂Fe₁₄B. Real-world performance may deviate from the simulation results. Use these calculations as a reference point for designers.

Table 1: Static pull force (pull vs gap) - characteristics
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 pounds 15400.0 g / 151.1 N	dangerous!
1 mm	4910 Gs 491.0 mT	12.73 kg / 28.07 pounds 12732.2 g / 124.9 N	dangerous!
2 mm	4423 Gs 442.3 mT	10.33 kg / 22.77 pounds 10328.3 g / 101.3 N	dangerous!
3 mm	3955 Gs 395.5 mT	8.26 kg / 18.21 pounds 8258.3 g / 81.0 N	medium risk
5 mm	3114 Gs 311.4 mT	5.12 kg / 11.29 pounds 5120.3 g / 50.2 N	medium risk
10 mm	1671 Gs 167.1 mT	1.48 kg / 3.25 pounds 1475.0 g / 14.5 N	safe
15 mm	936 Gs 93.6 mT	0.46 kg / 1.02 pounds 463.0 g / 4.5 N	safe
20 mm	562 Gs 56.2 mT	0.17 kg / 0.37 pounds 167.1 g / 1.6 N	safe
30 mm	244 Gs 24.4 mT	0.03 kg / 0.07 pounds 31.3 g / 0.3 N	safe
50 mm	73 Gs 7.3 mT	0.00 kg / 0.01 pounds 2.8 g / 0.0 N	safe

Grip strength decreases drastically per each millimeter of spacing. Note that every additional insulation layer (e.g., dirt, paint, rust) significantly weakens the grip. Magnetic products operate strongest at the point of direct contact; air break drastically cuts the force. Observe how rapidly the pull force plummet, when the product does not adhere tightly to the metal substrate. When planning the arrangement, avoid unnecessary gaps.

Table 2: Shear force (wall)
MPL 20x20x20 / N38

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

This section indicates the approximate shear load necessary to initiate the slippage of the magnet downwards on a upright steel plate (assuming typical friction coefficient). This value varies with the separation distance between the magnet and the metal.

Table 3: Vertical assembly (shearing) - 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 pounds 4620.0 g / 45.3 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	3.08 kg / 6.79 pounds 3080.0 g / 30.2 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	1.54 kg / 3.40 pounds 1540.0 g / 15.1 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	7.70 kg / 16.98 pounds 7700.0 g / 75.5 N

When placing a holder on a upright surface (e.g., a car body), it will maintain only about 20%-30% of its nominal power. Gravity and a weak degree of grip mean that products slide down faster than they pop off the substrate. Designing a wall mount? Consider that the sliding force is much weaker than the maximum static pull force. On a painted metal, the holder will slip down under a noticeably lighter weight. Utilizing a rubberized layer can drastically improve the result.

Table 4: Material efficiency (saturation) - 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 pounds 770.0 g / 7.6 N
1 mm	13%	1.93 kg / 4.24 pounds 1925.0 g / 18.9 N
2 mm	25%	3.85 kg / 8.49 pounds 3850.0 g / 37.8 N
3 mm	38%	5.78 kg / 12.73 pounds 5775.0 g / 56.7 N
5 mm	63%	9.63 kg / 21.22 pounds 9625.0 g / 94.4 N
10 mm	100%	15.40 kg / 33.95 pounds 15400.0 g / 151.1 N
11 mm	100%	15.40 kg / 33.95 pounds 15400.0 g / 151.1 N
12 mm	100%	15.40 kg / 33.95 pounds 15400.0 g / 151.1 N

A thin sheet cannot take in the full magnetic flux, which squanders power of the holder. Should you install a neodymium to a weak sheet, the flux will pass right through and the attraction force will be weaker. To squeeze 100% of this magnet's potential, you require a sufficiently solid element of steel. The material oversaturation causes that on thin elements (e.g., car bodies), the holder works worse. We advise picking the steel cross-section according to the table below.

Table 5: Thermal resistance (stability) - 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 pounds 15400.0 g / 151.1 N	OK
40 °C	-2.2%	15.06 kg / 33.20 pounds 15061.2 g / 147.8 N	OK
60 °C	-4.4%	14.72 kg / 32.46 pounds 14722.4 g / 144.4 N	OK
80 °C	-6.6%	14.38 kg / 31.71 pounds 14383.6 g / 141.1 N
100 °C	-28.8%	10.96 kg / 24.17 pounds 10964.8 g / 107.6 N

Classic neodymiums change their properties strength past the thermal threshold. Avoid high temperatures – heat can permanently damage this magnet. With increasing heat, the neodymium's force temporarily lowers. Avoid using this product in hot environments higher than its operating temperature limit. Too high temperature will cause irreversible degradation of magnetism.

*Engineering note: Heat tolerance is determined by both grade, but also on the magnet's shape. Thin magnets (low Pc) risk losing magnetic properties at lower temperatures compared to rod magnets. Red status in the table signals a risk of irreversible loss for this particular item.

Table 6: Two magnets (attraction) - field collision
MPL 20x20x20 / N38

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

Two magnetic products interact from a much further distance than a magnet and steel setup. The connection of two magnets generates a stronger field and a wider radius of operation. Designing a solid fastener? Apply two magnets instead of one magnet and a steel. Remember that when connecting a pair of magnets, the pinch force is massive. The levitation is slightly lower than the connection force, but still impressive.
*Field value in repulsion mode is approximately ~0 Gs at the geometric center of the gap (due to field cancellation).
Important: Figures demonstrate friction force of two identical magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Hazards (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
Timepiece	20 Gs (2.0 mT)	8.5 cm
Mobile device	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 poses a large risk to electronics and pacemakers. These NdFeB products produce a flux that destroys function of sensitive medical devices. Be aware: the unseen radiation passes through tissues and plastic. Exceptional care must be exercised by people with cochlear implants and drug dispensers. Also at risk are: mechanical watches, car keys, membranes, and displays. Do not bring the product near payment cards, HDD media, or precise measuring instruments.

Table 8: Impact energy (kinetic energy) - collision effects
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

NdFeB products are prone to chipping – a strong collision with metal causes immediate chipping. Control the attraction moment – a magnet released freely speeds with massive force. Kinetic force can cause material chips or injury to fingers. Hold the magnet firmly during installation so it doesn't hit violently against the steel surface. A contact at a velocity of dozens of km/h means shattering of the neodymium. Use safety goggles when working with large magnets.

Table 9: Coating parameters (durability)
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 SST (salt spray test) is an industry standard for determining coating lifespan in harsh conditions. Note the thickness of the protective layer.

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)

Total magnetic flux passing through the pole surface. Key data for generator designers and motors. P_c value determines the working geometry.

Table 11: Submerged application
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.

Water displaces steel, making heavy objects slightly lighter. Buoyancy helps in lifting finds.

1. Shear force

*Caution: On a vertical wall, the magnet holds only ~20% of its nominal pull.

2. Plate thickness effect

*Thin metal sheet (e.g. computer case) significantly limits the holding force.

3. Temperature resistance

*For N38 grade, the critical limit 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.

Engineering data and GPSR

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%

Ecology and recycling (GPSR)

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

Measurement Calculator

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Kilograms (kg)

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Model MPL 20x20x20 / N38 features a low profile and industrial pulling force, making it an ideal solution for building separators and machines. This magnetic block with a force of 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.

The key to success is shifting 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 15.40 kg can pinch very hard and cause hematomas. 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 magnetic separators 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.

For mounting flat magnets MPL 20x20x20 / N38, we recommend utilizing two-component adhesives (e.g., UHU Endfest, Distal), which ensure a durable bond with metal or plastic. For lighter applications or mounting on smooth surfaces, branded foam tape (e.g., 3M VHB) will work, provided the surface is perfectly degreased. Remember to clean and degrease the magnet surface before gluing, which significantly increases the adhesion of the glue to the nickel coating.

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. Such a pole arrangement ensures maximum holding capacity when pressing against the sheet, creating a closed magnetic circuit.

This model is characterized by dimensions 20x20x20 mm, which, at a weight of 60 g, makes it an element with high energy density. It is a magnetic block with dimensions 20x20x20 mm and a self-weight of 60 g, ready to work at temperatures up to 80°C. The product meets the standards for N38 grade magnets.

Advantages and disadvantages of rare earth magnets.

Benefits

Besides their stability, neodymium magnets are valued for these benefits:

They retain attractive force for almost ten years – the drop is just ~1% (according to analyses),
They feature excellent resistance to magnetism drop as a result of external magnetic sources,
The use of an shiny layer of noble metals (nickel, gold, silver) causes the element to present itself better,
They show high magnetic induction at the operating surface, which increases their power,
Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can function (depending on the shape) even at a temperature of 230°C or more...
Possibility of custom forming as well as adapting to individual conditions,
Huge importance in innovative solutions – they are utilized in hard drives, electromotive mechanisms, diagnostic systems, also technologically advanced constructions.
Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in small dimensions, which allows their use in small systems

Weaknesses

Disadvantages of neodymium magnets:

At strong impacts they can break, therefore we recommend placing them in strong housings. A metal housing provides additional protection against damage and increases the magnet's durability.
NdFeB magnets lose strength when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of power (a factor is the shape as well as dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely resistant to heat
Magnets exposed to a humid environment can corrode. Therefore when using outdoors, we advise using water-impermeable magnets made of rubber, plastic or other material resistant to moisture
Limited ability of creating threads in the magnet and complex shapes - recommended is a housing - magnetic holder.
Potential hazard resulting from small fragments of magnets are risky, when accidentally swallowed, which is particularly important in the aspect of protecting the youngest. It is also worth noting that small elements of these products are able to complicate diagnosis medical when they are in the body.
Due to complex production process, their price is higher than average,

Holding force characteristics

Breakaway strength of the magnet in ideal conditions – what it depends on?

The specified lifting capacity concerns the limit force, recorded under laboratory conditions, specifically:

on a plate made of mild steel, optimally conducting the magnetic flux
possessing a thickness of at least 10 mm to avoid saturation
with an ideally smooth touching surface
with direct contact (no impurities)
for force acting at a right angle (in the magnet axis)
at room temperature

Key elements affecting lifting force

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

Distance (betwixt the magnet and the metal), since even a microscopic distance (e.g. 0.5 mm) leads to a reduction in lifting capacity by up to 50% (this also applies to varnish, rust or debris).
Force direction – catalog parameter refers to detachment vertically. When applying parallel force, the magnet exhibits significantly lower power (often approx. 20-30% of maximum force).
Base massiveness – insufficiently thick plate does not accept the full field, causing part of the flux to be lost into the air.
Steel type – mild steel attracts best. Higher carbon content reduce magnetic permeability and lifting capacity.
Surface structure – the more even the surface, the larger the contact zone and higher the lifting capacity. Roughness acts like micro-gaps.
Heat – neodymium magnets have a negative temperature coefficient. When it is hot they are weaker, and at low temperatures 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, in contrast under parallel forces the load capacity is reduced by as much as fivefold. Additionally, even a small distance between the magnet and the plate reduces the holding force.

Precautions when working with neodymium magnets

Do not overheat magnets

Control the heat. Exposing the magnet to high heat will ruin its properties and pulling force.

Dust explosion hazard

Fire warning: Neodymium dust is highly flammable. Avoid machining magnets without safety gear as this may cause fire.

Phone sensors

GPS units and smartphones are highly sensitive to magnetic fields. Direct contact with a powerful NdFeB magnet can ruin the sensors in your phone.

Sensitization to coating

Warning for allergy sufferers: The nickel-copper-nickel coating contains nickel. If redness happens, immediately stop working with magnets and wear gloves.

Medical implants

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

Magnets are brittle

Beware of splinters. Magnets can explode upon uncontrolled impact, ejecting shards into the air. Wear goggles.

Bodily injuries

Risk of injury: The pulling power is so immense that it can result in blood blisters, pinching, and even bone fractures. Use thick gloves.

Keep away from computers

Avoid bringing magnets near a wallet, laptop, or screen. The magnetism can irreversibly ruin these devices and wipe information from cards.

Handling rules

Before starting, read the rules. Sudden snapping can destroy the magnet or hurt your hand. Think ahead.

This is not a toy

Neodymium magnets are not toys. Eating several magnets may result in them attracting across intestines, which constitutes a severe health hazard and necessitates immediate surgery.

Caution! Need more info? Check our post: Are neodymium magnets dangerous?

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

Technical modeling of the assembly - data

Table 1: Static pull force (pull vs gap) - characteristics MPL 20x20x20 / N38

Table 2: Shear force (wall) MPL 20x20x20 / N38

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

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

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

Table 6: Two magnets (attraction) - field collision MPL 20x20x20 / N38

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

Table 8: Impact energy (kinetic energy) - collision effects MPL 20x20x20 / N38

Table 9: Coating parameters (durability) MPL 20x20x20 / N38

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

Table 11: Submerged application MPL 20x20x20 / N38

1. Shear force

2. Plate thickness effect

3. Temperature resistance

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

Elemental analysis

Ecology and recycling (GPSR)

Magnet pull force

Magnetic Induction

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Advantages and disadvantages of rare earth magnets.

Benefits

Weaknesses

Holding force characteristics

Breakaway strength of the magnet in ideal conditions – what it depends on?

Key elements affecting lifting force

Precautions when working with neodymium magnets

Do not overheat magnets

Dust explosion hazard

Phone sensors

Sensitization to coating

Medical implants

Magnets are brittle

Bodily injuries

Keep away from computers

Handling rules

This is not a toy

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (pull vs gap) - characteristics
MPL 20x20x20 / N38

Table 2: Shear force (wall)
MPL 20x20x20 / N38

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

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

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

Table 6: Two magnets (attraction) - field collision
MPL 20x20x20 / N38

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

Table 8: Impact energy (kinetic energy) - collision effects
MPL 20x20x20 / N38

Table 9: Coating parameters (durability)
MPL 20x20x20 / N38

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

Table 11: Submerged application
MPL 20x20x20 / N38