Product available Ships tomorrow

MW 55x25 / 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 010081

GTIN/EAN: 5906301810803

5.00

Diameter Ø

55 mm [±0,1 mm]

Height

25 mm [±0,1 mm]

Weight

445.47 g

Magnetization Direction

↑ axial

Load capacity

92.25 kg / 904.94 N

Magnetic Induction

416.97 mT / 4170 Gs

Coating

[NiCuNi] Nickel

technical parameters »

154.21 ZŁ with VAT / pcs + price for transport

125.37 ZŁ net + 23% VAT / pcs

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Technical specification - MW 55x25 / N38 - cylindrical magnet

Specification / characteristics - MW 55x25 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010081
GTIN/EAN	5906301810803
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	55 mm [±0,1 mm]
Height	25 mm [±0,1 mm]
Weight	445.47 g
Magnetization Direction	↑ axial
Load capacity ~ ?	92.25 kg / 904.94 N
Magnetic Induction ~ ?	416.97 mT / 4170 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 55x25 / 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

Physical analysis of the product - data

These values are the result of a mathematical analysis. Values rely on models for the class Nd₂Fe₁₄B. Real-world performance might slightly differ from theoretical values. Use these data as a preliminary roadmap when designing systems.

Table 1: Static pull force (pull vs gap) - power drop
MW 55x25 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	4169 Gs 416.9 mT	92.25 kg / 203.38 pounds 92250.0 g / 905.0 N	dangerous!
1 mm	4034 Gs 403.4 mT	86.37 kg / 190.41 pounds 86369.8 g / 847.3 N	dangerous!
2 mm	3894 Gs 389.4 mT	80.47 kg / 177.41 pounds 80469.7 g / 789.4 N	dangerous!
3 mm	3751 Gs 375.1 mT	74.67 kg / 164.62 pounds 74670.6 g / 732.5 N	dangerous!
5 mm	3461 Gs 346.1 mT	63.58 kg / 140.17 pounds 63580.6 g / 623.7 N	dangerous!
10 mm	2756 Gs 275.6 mT	40.32 kg / 88.89 pounds 40320.8 g / 395.5 N	dangerous!
15 mm	2140 Gs 214.0 mT	24.31 kg / 53.59 pounds 24308.3 g / 238.5 N	dangerous!
20 mm	1644 Gs 164.4 mT	14.34 kg / 31.61 pounds 14338.1 g / 140.7 N	dangerous!
30 mm	975 Gs 97.5 mT	5.05 kg / 11.12 pounds 5046.0 g / 49.5 N	medium risk
50 mm	388 Gs 38.8 mT	0.80 kg / 1.77 pounds 801.0 g / 7.9 N	safe

Pulling power drops sharply with every subsequent millimeter of spacing. Note that even a very thin break (e.g., dirt, varnish, rust) significantly reduces the pull force. Magnetic products operate most effectively in perfect adhesion; air break drastically cuts the force. Observe how quickly the pull force drop, when the product does not adhere directly to the steel surface. When planning the arrangement, avoid unnecessary gaps.

Table 2: Vertical force (vertical surface)
MW 55x25 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	18.45 kg / 40.68 pounds 18450.0 g / 181.0 N
1 mm	Stal (~0.2)	17.27 kg / 38.08 pounds 17274.0 g / 169.5 N
2 mm	Stal (~0.2)	16.09 kg / 35.48 pounds 16094.0 g / 157.9 N
3 mm	Stal (~0.2)	14.93 kg / 32.92 pounds 14934.0 g / 146.5 N
5 mm	Stal (~0.2)	12.72 kg / 28.03 pounds 12716.0 g / 124.7 N
10 mm	Stal (~0.2)	8.06 kg / 17.78 pounds 8064.0 g / 79.1 N
15 mm	Stal (~0.2)	4.86 kg / 10.72 pounds 4862.0 g / 47.7 N
20 mm	Stal (~0.2)	2.87 kg / 6.32 pounds 2868.0 g / 28.1 N
30 mm	Stal (~0.2)	1.01 kg / 2.23 pounds 1010.0 g / 9.9 N
50 mm	Stal (~0.2)	0.16 kg / 0.35 pounds 160.0 g / 1.6 N

The following data defines the approximate shear load required to start the downward movement of the magnet down against a upright steel wall (considering typical friction). This parameter is relative to the separation distance between the magnet and the surface.

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MW 55x25 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	27.68 kg / 61.01 pounds 27675.0 g / 271.5 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	18.45 kg / 40.68 pounds 18450.0 g / 181.0 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	9.23 kg / 20.34 pounds 9225.0 g / 90.5 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	46.13 kg / 101.69 pounds 46125.0 g / 452.5 N

When hanging a holder on a vertical wall (e.g., a board), it you can count on barely approx. 20%-30% of nominal attraction strength. Gravitational force and a weak degree of grip mean that products slip easier than they pull off. Planning a vertical fastening? Consider that the shear force is significantly lower than the maximum static pull force. On a slippery surface, the holder will slide down under a noticeably lighter load. Using a rubber coating can drastically increase the grip.

Table 4: Material efficiency (saturation) - power losses
MW 55x25 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	3%	3.08 kg / 6.78 pounds 3075.0 g / 30.2 N
1 mm	8%	7.69 kg / 16.95 pounds 7687.5 g / 75.4 N
2 mm	17%	15.37 kg / 33.90 pounds 15375.0 g / 150.8 N
3 mm	25%	23.06 kg / 50.84 pounds 23062.5 g / 226.2 N
5 mm	42%	38.44 kg / 84.74 pounds 38437.5 g / 377.1 N
10 mm	83%	76.88 kg / 169.48 pounds 76875.0 g / 754.1 N
11 mm	92%	84.56 kg / 186.43 pounds 84562.5 g / 829.6 N
12 mm	100%	92.25 kg / 203.38 pounds 92250.0 g / 905.0 N

A thin sheet is incapable of conduct the entire magnetic field, which weakens actual performance of the holder. Should you mount a strong magnet to a thin surface, the flux will pass right through and the attraction force will be weaker. To achieve the maximum of this magnet's power, you require a sufficiently solid element of metal. The material oversaturation causes that on thin elements (e.g., thin profiles), the product holds weaker. We recommend selecting the steel cross-section according to the table below.

Table 5: Working in heat (stability) - resistance threshold
MW 55x25 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	92.25 kg / 203.38 pounds 92250.0 g / 905.0 N	OK
40 °C	-2.2%	90.22 kg / 198.90 pounds 90220.5 g / 885.1 N	OK
60 °C	-4.4%	88.19 kg / 194.43 pounds 88191.0 g / 865.2 N
80 °C	-6.6%	86.16 kg / 189.95 pounds 86161.5 g / 845.2 N
100 °C	-28.8%	65.68 kg / 144.80 pounds 65682.0 g / 644.3 N

Standard neodymium magnets change their properties strength after exceeding the maximum temperature. Protect against heat – heat can permanently destroy this magnet. As the temperature rises, the magnet's force briefly decreases. Refrain from using this magnet close to ovens exceeding its safe range. Exceeding the critical threshold will result in irreversible degradation of magnetism.

*Engineering note: Temperature resistance is determined by both grade, and the Permeance Coefficient Pc. Low-profile magnets (low Pc) may lose charge permanently at lower temperatures than taller cylinders. Warning indicator in the table indicates permanent field degradation for this particular item.

Table 6: Two magnets (attraction) - field range
MW 55x25 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Sliding Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	254.60 kg / 561.30 pounds 5 431 Gs	38.19 kg / 84.20 pounds 38190 g / 374.6 N	N/A
1 mm	246.57 kg / 543.59 pounds 8 206 Gs	36.99 kg / 81.54 pounds 36985 g / 362.8 N	221.91 kg / 489.23 pounds ~0 Gs
2 mm	238.37 kg / 525.52 pounds 8 068 Gs	35.76 kg / 78.83 pounds 35756 g / 350.8 N	214.54 kg / 472.97 pounds ~0 Gs
3 mm	230.21 kg / 507.52 pounds 7 929 Gs	34.53 kg / 76.13 pounds 34531 g / 338.7 N	207.19 kg / 456.77 pounds ~0 Gs
5 mm	214.04 kg / 471.88 pounds 7 645 Gs	32.11 kg / 70.78 pounds 32106 g / 315.0 N	192.64 kg / 424.69 pounds ~0 Gs
10 mm	175.48 kg / 386.86 pounds 6 923 Gs	26.32 kg / 58.03 pounds 26322 g / 258.2 N	157.93 kg / 348.17 pounds ~0 Gs
20 mm	111.28 kg / 245.33 pounds 5 513 Gs	16.69 kg / 36.80 pounds 16692 g / 163.8 N	100.15 kg / 220.80 pounds ~0 Gs
50 mm	23.33 kg / 51.43 pounds 2 524 Gs	3.50 kg / 7.71 pounds 3499 g / 34.3 N	20.99 kg / 46.28 pounds ~0 Gs
60 mm	13.93 kg / 30.70 pounds 1 950 Gs	2.09 kg / 4.61 pounds 2089 g / 20.5 N	12.53 kg / 27.63 pounds ~0 Gs
70 mm	8.48 kg / 18.70 pounds 1 522 Gs	1.27 kg / 2.81 pounds 1272 g / 12.5 N	7.63 kg / 16.83 pounds ~0 Gs
80 mm	5.29 kg / 11.66 pounds 1 202 Gs	0.79 kg / 1.75 pounds 793 g / 7.8 N	4.76 kg / 10.50 pounds ~0 Gs
90 mm	3.38 kg / 7.45 pounds 961 Gs	0.51 kg / 1.12 pounds 507 g / 5.0 N	3.04 kg / 6.70 pounds ~0 Gs
100 mm	2.21 kg / 4.87 pounds 777 Gs	0.33 kg / 0.73 pounds 332 g / 3.3 N	1.99 kg / 4.39 pounds ~0 Gs

Two magnetic products attract each other from a significantly greater distance than a magnet and sheet setup. Such a system of two magnets generates a stronger field and a larger range of performance. Designing a powerful holder? Apply two magnets instead of a neodymium and a steel. Remember that when attracting two neodymiums, the impact force is huge. The repulsion force is marginally weaker than the attraction, but still large.
*Field value in repulsion mode reaches ~0 Gs at the midpoint of the gap (due to field cancellation).
Note: Estimates refer to friction force of dual matching magnets (friction coefficient ~0.15 for Ni-Ni plating).

Table 7: Protective zones (electronics) - warnings
MW 55x25 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	27.5 cm
Hearing aid	10 Gs (1.0 mT)	21.5 cm
Mechanical watch	20 Gs (2.0 mT)	17.0 cm
Mobile device	40 Gs (4.0 mT)	13.0 cm
Car key	50 Gs (5.0 mT)	12.0 cm
Payment card	400 Gs (40.0 mT)	5.0 cm
HDD hard drive	600 Gs (60.0 mT)	4.5 cm

A strong magnetic field poses a large risk to IT equipment as well as pacemakers. These neodymiums generate a field that prevents correct functioning of sensitive medical devices. Be aware: the unseen radiation acts through matter and glass. Increased vigilance must be exercised by people with cochlear implants and drug dispensers. Also at risk are: automatic timepieces, remotes, membranes, and screens. Avoid contact with magnetic cards, hard drives, or precise measuring instruments.

Table 8: Dynamics (cracking risk) - warning
MW 55x25 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	18.05 km/h (5.01 m/s)	5.60 J
30 mm	25.98 km/h (7.22 m/s)	11.60 J
50 mm	32.63 km/h (9.06 m/s)	18.30 J
100 mm	45.90 km/h (12.75 m/s)	36.21 J

Neodymium magnets are delicate – a violent impact against metal risks their cracking. Pay attention to connection velocity – a neodymium left loose speeds with massive force. Kinetic force can destroy the magnet or injury to skin. Be sure to control the product during installation so it doesn't hit violently against the metal. A collision at high speed almost guarantees destruction of the magnet. Wear eye protection when working with powerful specimens.

Table 9: Anti-corrosion coating durability
MW 55x25 / 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 (Flux)
MW 55x25 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	101 075 Mx	1010.7 µWb
P_c Coefficient	0.55	Low (Flat)

Total magnetic flux emitted by the pole surface. Key data for generator designers as well as sensors. P_c value determines the magnet's operating point.

Table 11: Physics of underwater searching
MW 55x25 / N38

Environment	Effective steel pull	Effect
Air (land)	92.25 kg	Standard
Water (riverbed)	105.63 kg (+13.38 kg buoyancy gain)	+14.5%

Corrosion warning: Remember to wipe the magnet thoroughly after removing it from water and apply a protective layer (e.g., oil) to avoid corrosion.

Contrary to myths, water does not block the magnetic field. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Shear force

*Warning: On a vertical surface, the magnet holds only a fraction of its perpendicular strength.

2. Steel thickness impact

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

3. Power loss vs temp

*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) = 0.55

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

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: 010081-2026

Magnet Unit Converter

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Force in kg

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Enter data in a box, and the rest will convert on the fly.

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The offered product is an exceptionally strong cylindrical magnet, composed of durable NdFeB material, which, at dimensions of Ø55x25 mm, guarantees maximum efficiency. The MW 55x25 / N38 component is characterized by high dimensional repeatability and industrial build quality, making it a perfect solution for professional engineers and designers. As a magnetic rod with significant force (approx. 92.25 kg), this product is in stock from our European logistics center, ensuring rapid order fulfillment. Moreover, its triple-layer Ni-Cu-Ni coating secures it against corrosion in typical operating conditions, ensuring an aesthetic appearance and durability for years.

It finds application in DIY projects, advanced robotics, and broadly understood industry, serving as a fastening or actuating element. Thanks to the high power of 904.94 N with a weight of only 445.47 g, this rod is indispensable in miniature devices and wherever low weight is crucial.

Due to the brittleness of the NdFeB material, we absolutely advise against force-fitting (so-called press-fit), as this risks immediate cracking of this professional component. To ensure long-term durability in automation, anaerobic resins are used, which are safe for nickel and fill the gap, guaranteeing durability of the connection.

Magnets N38 are suitable for the majority of applications in automation and machine building, where extreme miniaturization with maximum force is not required. If you need the strongest magnets in the same volume (Ø55x25), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our warehouse.

The presented product is a neodymium magnet with precisely defined parameters: diameter 55 mm and height 25 mm. The value of 904.94 N means that the magnet is capable of holding a weight many times exceeding its own mass of 445.47 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 55 mm. Such an arrangement is standard when connecting magnets in stacks (e.g., in filters) or when mounting in sockets at the bottom of a hole. On request, we can also produce versions magnetized diametrically if your project requires it.

Strengths and weaknesses of Nd₂Fe₁₄B magnets.

Advantages

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

They virtually do not lose strength, because even after ten years the decline in efficiency is only ~1% (according to literature),
Magnets very well resist against loss of magnetization caused by ambient magnetic noise,
In other words, due to the glossy surface of silver, the element gains a professional look,
Neodymium magnets generate maximum magnetic induction on a their surface, which increases force concentration,
Thanks to resistance to high temperature, they are capable of working (depending on the shape) even at temperatures up to 230°C and higher...
Thanks to freedom in forming and the capacity to modify to specific needs,
Wide application in future technologies – they are utilized in HDD drives, drive modules, advanced medical instruments, and industrial machines.
Compactness – despite small sizes they generate large force, making them ideal for precision applications

Cons

Disadvantages of NdFeB magnets:

Susceptibility to cracking is one of their disadvantages. Upon intense impact they can fracture. We advise keeping them in a strong case, which not only secures them against impacts but also raises their durability
Neodymium magnets decrease their power under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material stable to moisture, in case of application outdoors
Due to limitations in creating nuts and complex shapes in magnets, we propose using cover - magnetic mechanism.
Health risk related to microscopic parts of magnets are risky, in case of ingestion, which is particularly important in the context of child health protection. Furthermore, small elements of these products are able to disrupt the diagnostic process medical in case of swallowing.
High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which can limit application in large quantities

Holding force characteristics

Best holding force of the magnet in ideal parameters – what affects it?

The specified lifting capacity represents the maximum value, recorded under ideal test conditions, meaning:

using a sheet made of high-permeability steel, functioning as a magnetic yoke
possessing a massiveness of min. 10 mm to ensure full flux closure
with an ground contact surface
with zero gap (no coatings)
for force applied at a right angle (pull-off, not shear)
at ambient temperature approx. 20 degrees Celsius

Lifting capacity in real conditions – factors

It is worth knowing that the application force will differ influenced by elements below, starting with the most relevant:

Distance (between the magnet and the plate), since even a microscopic distance (e.g. 0.5 mm) leads to a decrease in force by up to 50% (this also applies to varnish, corrosion or debris).
Angle of force application – maximum parameter is reached only during perpendicular pulling. The resistance to sliding of the magnet along the surface is typically several times lower (approx. 1/5 of the lifting capacity).
Element thickness – to utilize 100% power, the steel must be sufficiently thick. Paper-thin metal limits the lifting capacity (the magnet "punches through" it).
Chemical composition of the base – mild steel attracts best. Higher carbon content decrease magnetic permeability and holding force.
Surface structure – the smoother and more polished the surface, the larger the contact zone and stronger the hold. Roughness acts like micro-gaps.
Temperature – heating the magnet results in weakening of induction. It is worth remembering the maximum operating temperature for a given model.

Lifting capacity testing was conducted on plates with a smooth surface of suitable thickness, under perpendicular forces, however under parallel forces the load capacity is reduced by as much as 75%. Additionally, even a slight gap between the magnet and the plate reduces the load capacity.

Warnings

Threat to navigation

GPS units and smartphones are highly sensitive to magnetic fields. Close proximity with a strong magnet can ruin the sensors in your phone.

Eye protection

Despite the nickel coating, the material is brittle and not impact-resistant. Do not hit, as the magnet may shatter into sharp, dangerous pieces.

Keep away from children

Strictly keep magnets out of reach of children. Risk of swallowing is high, and the effects of magnets connecting inside the body are fatal.

Implant safety

Warning for patients: Powerful magnets disrupt medical devices. Maintain minimum 30 cm distance or ask another person to handle the magnets.

Bodily injuries

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

Avoid contact if allergic

Some people suffer from a sensitization to Ni, which is the standard coating for neodymium magnets. Frequent touching might lead to dermatitis. We strongly advise wear safety gloves.

Maximum temperature

Watch the temperature. Exposing the magnet to high heat will destroy its properties and strength.

Dust is flammable

Fire hazard: Rare earth powder is explosive. Do not process magnets in home conditions as this may cause fire.

Safe distance

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

Respect the power

Exercise caution. Rare earth magnets act from a long distance and connect with massive power, often faster than you can react.

Attention! Looking for details? Check our post: Why are neodymium magnets dangerous?

MW 55x25 / N38 - cylindrical magnet

Technical specification - MW 55x25 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical analysis of the product - data

Table 1: Static pull force (pull vs gap) - power drop MW 55x25 / N38

Table 2: Vertical force (vertical surface) MW 55x25 / N38

Table 3: Wall mounting (sliding) - behavior on slippery surfaces MW 55x25 / N38

Table 4: Material efficiency (saturation) - power losses MW 55x25 / N38

Table 5: Working in heat (stability) - resistance threshold MW 55x25 / N38

Table 6: Two magnets (attraction) - field range MW 55x25 / N38

Table 7: Protective zones (electronics) - warnings MW 55x25 / N38

Table 8: Dynamics (cracking risk) - warning MW 55x25 / N38

Table 9: Anti-corrosion coating durability MW 55x25 / N38

Table 10: Construction data (Flux) MW 55x25 / N38

Table 11: Physics of underwater searching MW 55x25 / N38

1. Shear force

2. Steel thickness impact

3. Power loss vs temp

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

Elemental analysis

Ecology and recycling (GPSR)

Force (pull)

Magnetic Field

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MW 4x6 / N38 - cylindrical magnet

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MPL 40x18x10 / N38 - lamellar magnet

Strengths and weaknesses of Nd2Fe14B magnets.

Advantages

Cons

Holding force characteristics

Best holding force of the magnet in ideal parameters – what affects it?

Lifting capacity in real conditions – factors

Warnings

Threat to navigation

Eye protection

Keep away from children

Implant safety

Bodily injuries

Avoid contact if allergic

Maximum temperature

Dust is flammable

Safe distance

Respect the power

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (pull vs gap) - power drop
MW 55x25 / N38

Table 2: Vertical force (vertical surface)
MW 55x25 / N38

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MW 55x25 / N38

Table 4: Material efficiency (saturation) - power losses
MW 55x25 / N38

Table 5: Working in heat (stability) - resistance threshold
MW 55x25 / N38

Table 6: Two magnets (attraction) - field range
MW 55x25 / N38

Table 7: Protective zones (electronics) - warnings
MW 55x25 / N38

Table 8: Dynamics (cracking risk) - warning
MW 55x25 / N38

Table 9: Anti-corrosion coating durability
MW 55x25 / N38

Table 10: Construction data (Flux)
MW 55x25 / N38

Table 11: Physics of underwater searching
MW 55x25 / N38

Strengths and weaknesses of Nd₂Fe₁₄B magnets.