Product available Ships today (order by 14:00)

MW 50x20 / N38 - cylindrical 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

cylindrical magnet

Catalog no 010080

GTIN/EAN: 5906301810797

Diameter Ø

50 mm [±0,1 mm]

Height

20 mm [±0,1 mm]

Weight

294.52 g

Magnetization Direction

↑ axial

Load capacity

70.10 kg / 687.66 N

Magnetic Induction

387.23 mT / 3872 Gs

Coating

[NiCuNi] Nickel

product parameters »

106.96 ZŁ with VAT / pcs + price for transport

86.96 ZŁ net + 23% VAT / pcs

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Do you have questions?

Contact us by phone +48 888 99 98 98 or let us know through inquiry form the contact form page.
Lifting power along with shape of neodymium magnets can be estimated on our modular calculator.

Orders placed before 14:00 will be shipped the same business day.

Technical - MW 50x20 / N38 - cylindrical magnet

Specification / characteristics - MW 50x20 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010080
GTIN/EAN	5906301810797
Production/Distribution	Dhit sp. z o.o. ul. Zielona 14 05-850 Ożarów Mazowiecki PL
Country of origin	Poland / China / Germany
Customs code	85059029
Diameter Ø	50 mm [±0,1 mm]
Height	20 mm [±0,1 mm]
Weight	294.52 g
Magnetization Direction	↑ axial
Load capacity ~ ?	70.10 kg / 687.66 N
Magnetic Induction ~ ?	387.23 mT / 3872 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 50x20 / N38 - cylindrical 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 - technical parameters

The following information are the direct effect of a engineering analysis. Values are based on models for the material Nd₂Fe₁₄B. Real-world performance might slightly differ from theoretical values. Please consider these data as a preliminary roadmap when designing systems.

Table 1: Static force (pull vs gap) - power drop
MW 50x20 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	3872 Gs 387.2 mT	70.10 kg / 154.54 lbs 70100.0 g / 687.7 N	dangerous!
1 mm	3740 Gs 374.0 mT	65.41 kg / 144.20 lbs 65408.0 g / 641.7 N	dangerous!
2 mm	3601 Gs 360.1 mT	60.65 kg / 133.72 lbs 60652.7 g / 595.0 N	dangerous!
3 mm	3459 Gs 345.9 mT	55.95 kg / 123.35 lbs 55950.5 g / 548.9 N	dangerous!
5 mm	3168 Gs 316.8 mT	46.94 kg / 103.47 lbs 46935.3 g / 460.4 N	dangerous!
10 mm	2460 Gs 246.0 mT	28.31 kg / 62.40 lbs 28306.3 g / 277.7 N	dangerous!
15 mm	1855 Gs 185.5 mT	16.10 kg / 35.48 lbs 16095.6 g / 157.9 N	dangerous!
20 mm	1384 Gs 138.4 mT	8.96 kg / 19.76 lbs 8963.2 g / 87.9 N	warning
30 mm	782 Gs 78.2 mT	2.86 kg / 6.31 lbs 2863.1 g / 28.1 N	warning
50 mm	293 Gs 29.3 mT	0.40 kg / 0.89 lbs 402.4 g / 3.9 N	safe

Pulling power drops drastically per each millimeter of spacing. Remember that even a very thin break (e.g., contamination, varnish, dust) noticeably reduces the pull force. Magnetic products work optimally during direct contact; distance kills the power. See how flashily the load capacity fall, when the magnet does not adhere directly to the metal substrate. When planning the arrangement, eliminate additional spacers.

Table 2: Vertical force (vertical surface)
MW 50x20 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	14.02 kg / 30.91 lbs 14020.0 g / 137.5 N
1 mm	Stal (~0.2)	13.08 kg / 28.84 lbs 13082.0 g / 128.3 N
2 mm	Stal (~0.2)	12.13 kg / 26.74 lbs 12130.0 g / 119.0 N
3 mm	Stal (~0.2)	11.19 kg / 24.67 lbs 11190.0 g / 109.8 N
5 mm	Stal (~0.2)	9.39 kg / 20.70 lbs 9388.0 g / 92.1 N
10 mm	Stal (~0.2)	5.66 kg / 12.48 lbs 5662.0 g / 55.5 N
15 mm	Stal (~0.2)	3.22 kg / 7.10 lbs 3220.0 g / 31.6 N
20 mm	Stal (~0.2)	1.79 kg / 3.95 lbs 1792.0 g / 17.6 N
30 mm	Stal (~0.2)	0.57 kg / 1.26 lbs 572.0 g / 5.6 N
50 mm	Stal (~0.2)	0.08 kg / 0.18 lbs 80.0 g / 0.8 N

The following data presents the approximate holding capacity sufficient to initiate the downward movement of the magnet downwards along a upright steel plate (considering typical friction). This value is relative to the separation distance between the magnet and the metal.

Table 3: Wall mounting (sliding) - vertical pull
MW 50x20 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	21.03 kg / 46.36 lbs 21030.0 g / 206.3 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	14.02 kg / 30.91 lbs 14020.0 g / 137.5 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	7.01 kg / 15.45 lbs 7010.0 g / 68.8 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	35.05 kg / 77.27 lbs 35050.0 g / 343.8 N

When placing a magnet on a vertical surface (e.g., a car body), it will only hold just approx. 1/5 of its nominal power. Gravitational force as well as a low friction coefficient cause that products move down faster than they pop off the substrate. Want to create a wall mount? Remember that the sliding force is noticeably lower than the maximum static pull force. On a slippery surface, the holder will slip down under a noticeably lighter weight. Utilizing a rubberized layer can effectively increase the grip.

Table 4: Steel thickness (substrate influence) - power losses
MW 50x20 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	3%	2.34 kg / 5.15 lbs 2336.7 g / 22.9 N
1 mm	8%	5.84 kg / 12.88 lbs 5841.7 g / 57.3 N
2 mm	17%	11.68 kg / 25.76 lbs 11683.3 g / 114.6 N
3 mm	25%	17.53 kg / 38.64 lbs 17525.0 g / 171.9 N
5 mm	42%	29.21 kg / 64.39 lbs 29208.3 g / 286.5 N
10 mm	83%	58.42 kg / 128.79 lbs 58416.7 g / 573.1 N
11 mm	92%	64.26 kg / 141.67 lbs 64258.3 g / 630.4 N
12 mm	100%	70.10 kg / 154.54 lbs 70100.0 g / 687.7 N

A too thin steel is unable to absorb the entire magnetic field, which squanders power of the holder. Should you install a neodymium to a thin surface, the magnetism will penetrate right through and the holding will be smaller. To utilize the maximum of this magnet's potential, you require a sufficiently solid backing of steel. The saturation phenomenon causes that on sheet metal structures (e.g., car bodies), the product holds weaker. We recommend selecting the steel cross-section based on the following data.

Table 5: Thermal stability (stability) - power drop
MW 50x20 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	70.10 kg / 154.54 lbs 70100.0 g / 687.7 N	OK
40 °C	-2.2%	68.56 kg / 151.14 lbs 68557.8 g / 672.6 N	OK
60 °C	-4.4%	67.02 kg / 147.74 lbs 67015.6 g / 657.4 N
80 °C	-6.6%	65.47 kg / 144.34 lbs 65473.4 g / 642.3 N
100 °C	-28.8%	49.91 kg / 110.04 lbs 49911.2 g / 489.6 N

Classic neodymiums irreversibly lose strength after exceeding the maximum temperature. Watch out for overheating – excessive heat can permanently demagnetize this magnet. With increasing heat, the magnet's capacity momentarily lowers. Avoid using this product close to ovens exceeding its operating temperature limit. Too high temperature will lead to irreversible degradation of magnetic properties.

*Engineering note: Heat tolerance is determined by both grade, and the Permeance Coefficient Pc. Thin magnets (pancake types) risk losing magnetic properties under lower heat stress than taller cylinders. The danger warning in the table indicates permanent field degradation for this specific geometry.

Table 6: Magnet-Magnet interaction (attraction) - field collision
MW 50x20 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	181.46 kg / 400.06 lbs 5 255 Gs	27.22 kg / 60.01 lbs 27220 g / 267.0 N	N/A
1 mm	175.47 kg / 386.84 lbs 7 615 Gs	26.32 kg / 58.03 lbs 26321 g / 258.2 N	157.92 kg / 348.16 lbs ~0 Gs
2 mm	169.32 kg / 373.28 lbs 7 480 Gs	25.40 kg / 55.99 lbs 25398 g / 249.2 N	152.39 kg / 335.96 lbs ~0 Gs
3 mm	163.16 kg / 359.70 lbs 7 343 Gs	24.47 kg / 53.96 lbs 24474 g / 240.1 N	146.84 kg / 323.73 lbs ~0 Gs
5 mm	150.90 kg / 332.67 lbs 7 061 Gs	22.63 kg / 49.90 lbs 22634 g / 222.0 N	135.81 kg / 299.40 lbs ~0 Gs
10 mm	121.50 kg / 267.86 lbs 6 336 Gs	18.22 kg / 40.18 lbs 18225 g / 178.8 N	109.35 kg / 241.07 lbs ~0 Gs
20 mm	73.28 kg / 161.54 lbs 4 921 Gs	10.99 kg / 24.23 lbs 10991 g / 107.8 N	65.95 kg / 145.39 lbs ~0 Gs
50 mm	12.99 kg / 28.63 lbs 2 071 Gs	1.95 kg / 4.29 lbs 1948 g / 19.1 N	11.69 kg / 25.76 lbs ~0 Gs
60 mm	7.41 kg / 16.34 lbs 1 565 Gs	1.11 kg / 2.45 lbs 1112 g / 10.9 N	6.67 kg / 14.71 lbs ~0 Gs
70 mm	4.35 kg / 9.58 lbs 1 198 Gs	0.65 kg / 1.44 lbs 652 g / 6.4 N	3.91 kg / 8.62 lbs ~0 Gs
80 mm	2.62 kg / 5.78 lbs 931 Gs	0.39 kg / 0.87 lbs 393 g / 3.9 N	2.36 kg / 5.20 lbs ~0 Gs
90 mm	1.63 kg / 3.59 lbs 734 Gs	0.24 kg / 0.54 lbs 245 g / 2.4 N	1.47 kg / 3.23 lbs ~0 Gs
100 mm	1.04 kg / 2.30 lbs 587 Gs	0.16 kg / 0.34 lbs 156 g / 1.5 N	0.94 kg / 2.07 lbs ~0 Gs

Two magnets attract each other from a wider radius than a magnet and steel setup. The connection of magnet-to-magnet produces a massive flux and a wider radius of operation. Designing a strong closure? Utilize two neodymiums instead of a neodymium and a steel. Be careful that when attracting two neodymiums, the impact force is huge. The levitation is a bit weaker than the connection force, but still large.
*Field value between like poles is approximately ~0 Gs at the geometric center of the gap (resulting from vector opposition).
* Estimates apply to friction force of a pair of same magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Hazards (electronics) - warnings
MW 50x20 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	24.0 cm
Hearing aid	10 Gs (1.0 mT)	19.0 cm
Mechanical watch	20 Gs (2.0 mT)	15.0 cm
Phone / Smartphone	40 Gs (4.0 mT)	11.5 cm
Car key	50 Gs (5.0 mT)	10.5 cm
Payment card	400 Gs (40.0 mT)	4.5 cm
HDD hard drive	600 Gs (60.0 mT)	3.5 cm

Powerful magnet radiation poses a real danger to electronics and pacemakers. These NdFeB products produce a field that destroys function of digital equipment. Notice: the unseen radiation passes through tissues and glass. Increased vigilance must be taken by people with cochlear implants and drug dispensers. Influence will be felt by: automatic timepieces, car keys, speakers, and displays. Do not bring the product near payment cards, HDD media, or sensitive navigation tools.

Table 8: Impact energy (kinetic energy) - warning
MW 50x20 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	19.09 km/h (5.30 m/s)	4.14 J
30 mm	27.63 km/h (7.67 m/s)	8.67 J
50 mm	34.92 km/h (9.70 m/s)	13.85 J
100 mm	49.21 km/h (13.67 m/s)	27.51 J

Magnetic elements are delicate – a collision with steel risks their cracking. Watch the impact speed – a magnet released freely speeds with massive force. Kinetic force can trigger coating fragments or dangerous crushing to fingers. Hold the magnet firmly during bringing near metal so it doesn't hit with great force against the steel surface. A collision at high speed almost guarantees destruction of the magnet. Use safety goggles when handling with large magnets.

Table 9: Anti-corrosion coating durability
MW 50x20 / 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. Note the thickness of the protective layer.

Table 10: Construction data (P_c)
MW 50x20 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	78 540 Mx	785.4 µWb
P_c Coefficient	0.50	Low (Flat)

Total magnetic flux emitted by the pole surface. Key data for generator designers and motors. The P_c coefficient determines the working geometry.

Table 11: Underwater work (magnet fishing)
MW 50x20 / N38

Environment	Effective steel pull	Effect
Air (land)	70.10 kg	Standard
Water (riverbed)	80.26 kg (+10.16 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.

The magnetic field penetrates through water without any losses. Buoyancy helps in lifting finds.

1. Shear force

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

2. Efficiency vs thickness

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

3. Heat tolerance

*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) = 0.50

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.

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: 010080-2026

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The presented product is a very strong cylinder magnet, manufactured from modern NdFeB material, which, at dimensions of Ø50x20 mm, guarantees the highest energy density. The MW 50x20 / N38 component boasts a tolerance of ±0.1mm and professional build quality, making it an ideal solution for professional engineers and designers. As a cylindrical magnet with significant force (approx. 70.10 kg), this product is in stock from our warehouse in Poland, ensuring rapid order fulfillment. Additionally, its Ni-Cu-Ni coating effectively protects it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.

This model is ideal for building generators, advanced sensors, and efficient filters, where field concentration on a small surface counts. Thanks to the high power of 687.66 N with a weight of only 294.52 g, this rod is indispensable in miniature devices and wherever low weight is crucial.

Due to the brittleness of the NdFeB material, you must not use force-fitting (so-called press-fit), as this risks chipping the coating of this professional component. To ensure long-term durability in automation, specialized industrial adhesives are used, which are safe for nickel and fill the gap, guaranteeing durability of the connection.

Grade N38 is the most frequently chosen standard for professional neodymium magnets, offering a great economic balance and high resistance to demagnetization. If you need the strongest magnets in the same volume (Ø50x20), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our store.

The presented product is a neodymium magnet with precisely defined parameters: diameter 50 mm and height 20 mm. The value of 687.66 N means that the magnet is capable of holding a weight many times exceeding its own mass of 294.52 g. The product has a [NiCuNi] coating, which secures it against oxidation, giving it an aesthetic, silvery shine.

Standardly, the magnetic axis runs through the center of the cylinder, causing the greatest attraction force to occur on the bases with a diameter of 50 mm. Thanks to this, the magnet can be easily glued into a hole and achieve a strong field on the front surface. On request, we can also produce versions magnetized through the diameter if your project requires it.

Strengths as well as weaknesses of Nd₂Fe₁₄B magnets.

Strengths

Besides their remarkable pulling force, neodymium magnets offer the following advantages:

They retain attractive force for almost ten years – the loss is just ~1% (in theory),
They do not lose their magnetic properties even under close interference source,
Thanks to the elegant finish, the surface of Ni-Cu-Ni, gold, or silver-plated gives an professional appearance,
They are known for high magnetic induction at the operating surface, which affects their effectiveness,
Due to their durability and thermal resistance, neodymium magnets can operate (depending on the form) even at high temperatures reaching 230°C or more...
Possibility of precise creating as well as modifying to concrete conditions,
Fundamental importance in high-tech industry – they are commonly used in hard drives, drive modules, medical devices, as well as technologically advanced constructions.
Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in small dimensions, which makes them useful in small systems

Cons

Disadvantages of neodymium magnets:

They are fragile upon too strong impacts. To avoid cracks, it is worth protecting magnets in a protective case. Such protection not only shields the magnet but also increases its resistance to damage
NdFeB magnets lose power when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of strength (a factor is the shape and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are very resistant to heat
Magnets exposed to a humid environment can rust. Therefore while using outdoors, we suggest using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
Due to limitations in realizing nuts and complicated forms in magnets, we propose using cover - magnetic mechanism.
Potential hazard resulting from small fragments of magnets are risky, when accidentally swallowed, which gains importance in the context of child safety. Furthermore, small elements of these devices are able to complicate diagnosis medical after entering the body.
High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which increases costs of application in large quantities

Pull force analysis

Detachment force of the magnet in optimal conditions – what affects it?

Breakaway force is the result of a measurement for ideal contact conditions, taking into account:

using a sheet made of low-carbon steel, serving as a circuit closing element
possessing a massiveness of at least 10 mm to ensure full flux closure
characterized by smoothness
under conditions of gap-free contact (surface-to-surface)
during pulling in a direction perpendicular to the mounting surface
at room temperature

Magnet lifting force in use – key factors

Real force impacted by specific conditions, including (from most important):

Gap between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by veneer or dirt) significantly weakens the pulling force, often by half at just 0.5 mm.
Loading method – declared lifting capacity refers to detachment vertically. When slipping, the magnet holds much less (often approx. 20-30% of nominal force).
Steel thickness – insufficiently thick plate does not close the flux, causing part of the flux to be escaped to the other side.
Chemical composition of the base – mild steel attracts best. Higher carbon content decrease magnetic permeability and lifting capacity.
Smoothness – ideal contact is possible only on smooth steel. Any scratches and bumps create air cushions, reducing force.
Temperature influence – hot environment reduces pulling force. Too high temperature can permanently damage the magnet.

Lifting capacity was measured using a steel plate with a smooth surface of suitable thickness (min. 20 mm), under perpendicular detachment force, whereas under shearing force the lifting capacity is smaller. Moreover, even a slight gap between the magnet’s surface and the plate reduces the lifting capacity.

Safety rules for work with NdFeB magnets

ICD Warning

Life threat: Neodymium magnets can turn off pacemakers and defibrillators. Stay away if you have electronic implants.

Choking Hazard

Absolutely store magnets out of reach of children. Choking hazard is significant, and the consequences of magnets clamping inside the body are tragic.

Handling guide

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

Do not drill into magnets

Dust produced during cutting of magnets is combustible. Do not drill into magnets without proper cooling and knowledge.

Crushing risk

Mind your fingers. Two large magnets will join immediately with a force of several hundred kilograms, crushing everything in their path. Exercise extreme caution!

Magnetic interference

Navigation devices and mobile phones are extremely susceptible to magnetic fields. Direct contact with a strong magnet can permanently damage the internal compass in your phone.

Safe distance

Equipment safety: Neodymium magnets can ruin data carriers and sensitive devices (heart implants, medical aids, mechanical watches).

Allergic reactions

Certain individuals experience a hypersensitivity to nickel, which is the standard coating for neodymium magnets. Extended handling might lead to skin redness. We recommend use protective gloves.

Beware of splinters

Despite the nickel coating, neodymium is delicate and not impact-resistant. Avoid impacts, as the magnet may shatter into sharp, dangerous pieces.

Do not overheat magnets

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

Important! Need more info? Read our article: Why are neodymium magnets dangerous?

MW 50x20 / N38 - cylindrical magnet

Technical - MW 50x20 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical modeling of the assembly - technical parameters

Table 1: Static force (pull vs gap) - power drop MW 50x20 / N38

Table 2: Vertical force (vertical surface) MW 50x20 / N38

Table 3: Wall mounting (sliding) - vertical pull MW 50x20 / N38

Table 4: Steel thickness (substrate influence) - power losses MW 50x20 / N38

Table 5: Thermal stability (stability) - power drop MW 50x20 / N38

Table 6: Magnet-Magnet interaction (attraction) - field collision MW 50x20 / N38

Table 7: Hazards (electronics) - warnings MW 50x20 / N38

Table 8: Impact energy (kinetic energy) - warning MW 50x20 / N38

Table 9: Anti-corrosion coating durability MW 50x20 / N38

Table 10: Construction data (Pc) MW 50x20 / N38

Table 11: Underwater work (magnet fishing) MW 50x20 / N38

1. Shear force

2. Efficiency vs thickness

3. Heat tolerance

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

Chemical composition

Environmental data

Pulling force

Field Strength

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MPL 40x10x5x2[7/3.5] / N38 - lamellar magnet

SM 32x450 [2xM8] / N52 - magnetic separator

UMGGZ 34x6 [M4] GZ / N38 - rubber magnetic holder external thread

Strengths as well as weaknesses of Nd2Fe14B magnets.

Strengths

Cons

Pull force analysis

Detachment force of the magnet in optimal conditions – what affects it?

Magnet lifting force in use – key factors

Safety rules for work with NdFeB magnets

ICD Warning

Choking Hazard

Handling guide

Do not drill into magnets

Crushing risk

Magnetic interference

Safe distance

Allergic reactions

Beware of splinters

Do not overheat magnets

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (pull vs gap) - power drop
MW 50x20 / N38

Table 2: Vertical force (vertical surface)
MW 50x20 / N38

Table 3: Wall mounting (sliding) - vertical pull
MW 50x20 / N38

Table 4: Steel thickness (substrate influence) - power losses
MW 50x20 / N38

Table 5: Thermal stability (stability) - power drop
MW 50x20 / N38

Table 6: Magnet-Magnet interaction (attraction) - field collision
MW 50x20 / N38

Table 7: Hazards (electronics) - warnings
MW 50x20 / N38

Table 8: Impact energy (kinetic energy) - warning
MW 50x20 / N38

Table 9: Anti-corrosion coating durability
MW 50x20 / N38

Table 10: Construction data (P_c)
MW 50x20 / N38

Table 11: Underwater work (magnet fishing)
MW 50x20 / N38

Strengths as well as weaknesses of Nd₂Fe₁₄B magnets.