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MW 25x2.5 / 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 010449

GTIN/EAN: 5906301811121

5.00

Diameter Ø

25 mm [±0,1 mm]

Height

2.5 mm [±0,1 mm]

Weight

9.2 g

Magnetization Direction

↑ axial

Load capacity

2.55 kg / 25.03 N

Magnetic Induction

121.57 mT / 1216 Gs

Coating

[NiCuNi] Nickel

check technical specifications »

3.95 ZŁ with VAT / pcs + price for transport

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Detailed specification - MW 25x2.5 / N38 - cylindrical magnet

Specification / characteristics - MW 25x2.5 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010449
GTIN/EAN	5906301811121
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	25 mm [±0,1 mm]
Height	2.5 mm [±0,1 mm]
Weight	9.2 g
Magnetization Direction	↑ axial
Load capacity ~ ?	2.55 kg / 25.03 N
Magnetic Induction ~ ?	121.57 mT / 1216 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 25x2.5 / 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 simulation of the magnet - technical parameters

These information represent the result of a mathematical analysis. Results rely on algorithms for the class Nd₂Fe₁₄B. Real-world performance may differ from theoretical values. Use these calculations as a preliminary roadmap for designers.

Table 1: Static pull force (pull vs distance) - power drop
MW 25x2.5 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	1216 Gs 121.6 mT	2.55 kg / 5.62 pounds 2550.0 g / 25.0 N	medium risk
1 mm	1177 Gs 117.7 mT	2.39 kg / 5.27 pounds 2391.6 g / 23.5 N	medium risk
2 mm	1121 Gs 112.1 mT	2.17 kg / 4.78 pounds 2166.6 g / 21.3 N	medium risk
3 mm	1050 Gs 105.0 mT	1.90 kg / 4.19 pounds 1902.7 g / 18.7 N	low risk
5 mm	887 Gs 88.7 mT	1.36 kg / 2.99 pounds 1358.4 g / 13.3 N	low risk
10 mm	511 Gs 51.1 mT	0.45 kg / 0.99 pounds 450.5 g / 4.4 N	low risk
15 mm	282 Gs 28.2 mT	0.14 kg / 0.30 pounds 137.4 g / 1.3 N	low risk
20 mm	162 Gs 16.2 mT	0.05 kg / 0.10 pounds 45.4 g / 0.4 N	low risk
30 mm	64 Gs 6.4 mT	0.01 kg / 0.02 pounds 7.0 g / 0.1 N	low risk
50 mm	17 Gs 1.7 mT	0.00 kg / 0.00 pounds 0.5 g / 0.0 N	low risk

Magnetic force weakens drastically with every subsequent millimeter of gap. Note that even the smallest gap (e.g., dirt, varnish, dust) significantly reduces the pull force. Magnetic products operate optimally in perfect adhesion; air break weakens the power. Notice how flashily the pull force drop, when the product does not touch flatly to the steel surface. When calculating the arrangement, eliminate unnecessary gaps.

Table 2: Sliding hold (wall)
MW 25x2.5 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.51 kg / 1.12 pounds 510.0 g / 5.0 N
1 mm	Stal (~0.2)	0.48 kg / 1.05 pounds 478.0 g / 4.7 N
2 mm	Stal (~0.2)	0.43 kg / 0.96 pounds 434.0 g / 4.3 N
3 mm	Stal (~0.2)	0.38 kg / 0.84 pounds 380.0 g / 3.7 N
5 mm	Stal (~0.2)	0.27 kg / 0.60 pounds 272.0 g / 2.7 N
10 mm	Stal (~0.2)	0.09 kg / 0.20 pounds 90.0 g / 0.9 N
15 mm	Stal (~0.2)	0.03 kg / 0.06 pounds 28.0 g / 0.3 N
20 mm	Stal (~0.2)	0.01 kg / 0.02 pounds 10.0 g / 0.1 N
30 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 2.0 g / 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N

This section defines the estimated holding capacity needed to cause the downward movement of the magnet vertically against a vertical steel wall (assuming typical friction). The holding force varies with the separation distance between the magnet and the metal.

Table 3: Wall mounting (shearing) - vertical pull
MW 25x2.5 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.76 kg / 1.69 pounds 765.0 g / 7.5 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.51 kg / 1.12 pounds 510.0 g / 5.0 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.26 kg / 0.56 pounds 255.0 g / 2.5 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	1.28 kg / 2.81 pounds 1275.0 g / 12.5 N

When placing a holder on a upright surface (e.g., a fridge), it will maintain just about 20%-30% of its maximum pull force. Gravity and a low friction coefficient influence the fact that holders move down faster than they detach. Designing a hanger? Note that the sliding force is noticeably lower than the perpendicular breakaway force. On a smooth steel, the element will slip down under a much lighter weight. Using a rubber pad can significantly improve the result.

Table 4: Material efficiency (saturation) - sheet metal selection
MW 25x2.5 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.26 kg / 0.56 pounds 255.0 g / 2.5 N
1 mm	25%	0.64 kg / 1.41 pounds 637.5 g / 6.3 N
2 mm	50%	1.28 kg / 2.81 pounds 1275.0 g / 12.5 N
3 mm	75%	1.91 kg / 4.22 pounds 1912.5 g / 18.8 N
5 mm	100%	2.55 kg / 5.62 pounds 2550.0 g / 25.0 N
10 mm	100%	2.55 kg / 5.62 pounds 2550.0 g / 25.0 N
11 mm	100%	2.55 kg / 5.62 pounds 2550.0 g / 25.0 N
12 mm	100%	2.55 kg / 5.62 pounds 2550.0 g / 25.0 N

A thin metal plate cannot absorb the full magnetic flux, which weakens actual performance of the magnet. Should you install a neodymium to a too thin substrate, the magnetism will penetrate right through and the holding will be smaller. To achieve the maximum of this neodymium's potential, you require a sufficiently solid element of metal. The material oversaturation means that on sheet metal structures (e.g., appliance housings), the holder shows lower pull force. We suggest choosing the steel thickness based on the following data.

Table 5: Thermal stability (stability) - power drop
MW 25x2.5 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	2.55 kg / 5.62 pounds 2550.0 g / 25.0 N	OK
40 °C	-2.2%	2.49 kg / 5.50 pounds 2493.9 g / 24.5 N	OK
60 °C	-4.4%	2.44 kg / 5.37 pounds 2437.8 g / 23.9 N
80 °C	-6.6%	2.38 kg / 5.25 pounds 2381.7 g / 23.4 N
100 °C	-28.8%	1.82 kg / 4.00 pounds 1815.6 g / 17.8 N

Standard neodymium magnets lose parameters after exceeding the maximum temperature. Watch out for overheating – excessive heat can permanently damage this magnet. As the temperature rises, the magnet's power temporarily decreases. Refrain from using this product close to heaters exceeding its working range. Ignoring the limit will result in destruction of magnetic properties.

*Technical advisory: Temperature resistance depends not only on the material grade, but also on the magnet's shape. Flat magnets (low Pc) are more susceptible to demagnetization sooner than long magnets. The danger warning in the table signals permanent field degradation for this particular item.

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MW 25x2.5 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	4.47 kg / 9.86 pounds 2 302 Gs	0.67 kg / 1.48 pounds 671 g / 6.6 N	N/A
1 mm	4.35 kg / 9.59 pounds 2 398 Gs	0.65 kg / 1.44 pounds 653 g / 6.4 N	3.92 kg / 8.63 pounds ~0 Gs
2 mm	4.19 kg / 9.25 pounds 2 355 Gs	0.63 kg / 1.39 pounds 629 g / 6.2 N	3.77 kg / 8.32 pounds ~0 Gs
3 mm	4.01 kg / 8.84 pounds 2 302 Gs	0.60 kg / 1.33 pounds 601 g / 5.9 N	3.61 kg / 7.95 pounds ~0 Gs
5 mm	3.57 kg / 7.88 pounds 2 173 Gs	0.54 kg / 1.18 pounds 536 g / 5.3 N	3.22 kg / 7.09 pounds ~0 Gs
10 mm	2.38 kg / 5.25 pounds 1 775 Gs	0.36 kg / 0.79 pounds 357 g / 3.5 N	2.14 kg / 4.73 pounds ~0 Gs
20 mm	0.79 kg / 1.74 pounds 1 022 Gs	0.12 kg / 0.26 pounds 119 g / 1.2 N	0.71 kg / 1.57 pounds ~0 Gs
50 mm	0.03 kg / 0.07 pounds 198 Gs	0.00 kg / 0.01 pounds 4 g / 0.0 N	0.03 kg / 0.06 pounds ~0 Gs
60 mm	0.01 kg / 0.03 pounds 127 Gs	0.00 kg / 0.00 pounds 2 g / 0.0 N	0.01 kg / 0.02 pounds ~0 Gs
70 mm	0.01 kg / 0.01 pounds 86 Gs	0.00 kg / 0.00 pounds 1 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
80 mm	0.00 kg / 0.01 pounds 61 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
90 mm	0.00 kg / 0.00 pounds 44 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
100 mm	0.00 kg / 0.00 pounds 33 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs

Two magnets attract each other from a much further distance than a neodymium and metal setup. Such a system of two magnets creates a more powerful interaction and a wider radius of performance. Want to build a strong closure? Apply two magnets instead of a neodymium and a striker plate. Exercise caution that when bringing together two magnets, the impact force is extreme. The repulsion force is a bit weaker than the connection force, but still impressive.
*Field value for N-N configuration is approximately ~0 Gs at the midpoint of the gap (resulting from vector opposition).
Attention: Estimates apply to sliding force of two same neodymium magnets (friction ~0.15 for Ni-Ni coating).

Table 7: Hazards (electronics) - precautionary measures
MW 25x2.5 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	8.0 cm
Hearing aid	10 Gs (1.0 mT)	6.0 cm
Mechanical watch	20 Gs (2.0 mT)	5.0 cm
Phone / Smartphone	40 Gs (4.0 mT)	4.0 cm
Remote	50 Gs (5.0 mT)	3.5 cm
Payment card	400 Gs (40.0 mT)	1.5 cm
HDD hard drive	600 Gs (60.0 mT)	1.0 cm

Extremely neodym field is a serious hazard to IT equipment as well as pacemakers. These magnets generate a flux that disrupts operation of digital equipment. Notice: the unseen radiation passes through tissues and plastic. Special caution must be taken by people with cochlear implants and insulin pumps. The risk also applies to: automatic timepieces, remotes, speakers, and displays. Avoid contact with magnetic cards, hard drives, or precise measuring instruments.

Table 8: Impact energy (cracking risk) - collision effects
MW 25x2.5 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	18.55 km/h (5.15 m/s)	0.12 J
30 mm	29.13 km/h (8.09 m/s)	0.30 J
50 mm	37.55 km/h (10.43 m/s)	0.50 J
100 mm	53.10 km/h (14.75 m/s)	1.00 J

Neodymium magnets are very brittle – a strong collision with metal risks their cracking. Control the attraction moment – a magnet released freely turns into a projectile. Kinetic force can destroy the magnet or injury to skin. Always hold the magnet 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. Wear eye protection when handling with powerful specimens.

Table 9: Anti-corrosion coating durability
MW 25x2.5 / 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)

Neodymium magnets are highly susceptible to corrosion without proper protection. Note the thickness of the protective layer.

Table 10: Electrical data (Flux)
MW 25x2.5 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	7 872 Mx	78.7 µWb
P_c Coefficient	0.16	Low (Flat)

Total magnetic flux passing through the pole surface. Essential parameter in coil applications as well as sensors. The P_c coefficient determines the working geometry.

Table 11: Submerged application
MW 25x2.5 / N38

Environment	Effective steel pull	Effect
Air (land)	2.55 kg	Standard
Water (riverbed)	2.92 kg (+0.37 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.

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

1. Shear force

*Warning: On a vertical surface, the magnet retains just approx. 20-30% of its nominal pull.

2. Efficiency vs thickness

*Thin steel (e.g. 0.5mm PC case) severely weakens the holding force.

3. Temperature resistance

*For standard magnets, 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) = 0.16

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

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: 010449-2026

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The offered product is a very strong cylinder magnet, composed of modern NdFeB material, which, at dimensions of Ø25x2.5 mm, guarantees maximum efficiency. The MW 25x2.5 / N38 model features high dimensional repeatability and professional build quality, making it a perfect solution for professional engineers and designers. As a cylindrical magnet with significant force (approx. 2.55 kg), this product is in stock from our warehouse in Poland, ensuring quick order fulfillment. Moreover, its Ni-Cu-Ni coating shields it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.

This model is perfect for building generators, advanced Hall effect sensors, and efficient magnetic separators, where field concentration on a small surface counts. Thanks to the pull force of 25.03 N with a weight of only 9.2 g, this cylindrical magnet is indispensable in electronics and wherever every gram matters.

Due to the delicate structure of the ceramic sinter, you must not use force-fitting (so-called press-fit), as this risks immediate cracking of this precision component. To ensure stability in automation, specialized industrial adhesives are used, which do not react with the nickel coating and fill the gap, guaranteeing high repeatability of the connection.

Grade N38 is the most popular standard for industrial neodymium magnets, offering an optimal price-to-power ratio and high resistance to demagnetization. If you need even stronger magnets in the same volume (Ø25x2.5), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our store.

This model is characterized by dimensions Ø25x2.5 mm, which, at a weight of 9.2 g, makes it an element with impressive magnetic energy density. The value of 25.03 N means that the magnet is capable of holding a weight many times exceeding its own mass of 9.2 g. The product has a [NiCuNi] coating, which secures it against external factors, giving it an aesthetic, silvery shine.

This rod magnet is magnetized axially (along the height of 2.5 mm), which means that the N and S poles are located on the flat, circular surfaces. 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.

Advantages and disadvantages of Nd₂Fe₁₄B magnets.

Advantages

Apart from their superior power, neodymium magnets have these key benefits:

Their strength is maintained, and after approximately ten years it drops only by ~1% (theoretically),
They are noted for resistance to demagnetization induced by presence of other magnetic fields,
Thanks to the shimmering finish, the surface of nickel, gold-plated, or silver gives an visually attractive appearance,
The surface of neodymium magnets generates a strong magnetic field – this is a distinguishing feature,
Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the shape) even at high temperatures reaching 230°C or more...
Thanks to modularity in forming and the ability to adapt to unusual requirements,
Universal use in future technologies – they are commonly used in mass storage devices, motor assemblies, medical devices, as well as other advanced devices.
Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in compact dimensions, which makes them useful in compact constructions

Cons

Cons of neodymium magnets and ways of using them

Brittleness is one of their disadvantages. Upon strong impact they can break. We advise keeping them in a special holder, which not only protects them against impacts but also raises their durability
When exposed to high temperature, neodymium magnets suffer a drop in strength. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
Magnets exposed to a humid environment can rust. Therefore when using outdoors, we suggest using waterproof magnets made of rubber, plastic or other material resistant to moisture
We suggest casing - magnetic mechanism, due to difficulties in creating threads inside the magnet and complicated shapes.
Possible danger resulting from small fragments of magnets can be dangerous, if swallowed, which becomes key in the context of child safety. It is also worth noting that tiny parts of these magnets can complicate diagnosis medical in case of swallowing.
With large orders the cost of neodymium magnets is a challenge,

Lifting parameters

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

The force parameter is a measurement result conducted under specific, ideal conditions:

using a sheet made of high-permeability steel, serving as a ideal flux conductor
with a cross-section no less than 10 mm
with an ideally smooth touching surface
without the slightest air gap between the magnet and steel
for force applied at a right angle (pull-off, not shear)
at ambient temperature room level

Determinants of lifting force in real conditions

It is worth knowing that the working load may be lower influenced by the following factors, starting with the most relevant:

Air gap (betwixt the magnet and the metal), as even a very small clearance (e.g. 0.5 mm) results in a decrease in lifting capacity by up to 50% (this also applies to paint, rust or debris).
Load vector – highest force is available only during perpendicular pulling. The force required to slide of the magnet along the surface is standardly many times lower (approx. 1/5 of the lifting capacity).
Metal thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field passes through the material instead of generating force.
Metal type – not every steel attracts identically. High carbon content weaken the attraction effect.
Smoothness – full contact is obtained only on smooth steel. Rough texture reduce the real contact area, reducing force.
Heat – NdFeB sinters have a negative temperature coefficient. When it is hot they lose power, and at low temperatures they can be stronger (up to a certain limit).

Holding force was checked on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, in contrast under shearing force the lifting capacity is smaller. Additionally, even a minimal clearance between the magnet and the plate decreases the holding force.

H&S for magnets

Impact on smartphones

Note: rare earth magnets generate a field that disrupts precision electronics. Keep a separation from your mobile, device, and GPS.

Powerful field

Before use, read the rules. Sudden snapping can break the magnet or hurt your hand. Be predictive.

Health Danger

Health Alert: Neodymium magnets can turn off heart devices and defibrillators. Stay away if you have medical devices.

Flammability

Powder created during machining of magnets is flammable. Avoid drilling into magnets without proper cooling and knowledge.

Heat warning

Standard neodymium magnets (N-type) lose power when the temperature exceeds 80°C. This process is irreversible.

Material brittleness

Despite the nickel coating, the material is delicate and cannot withstand shocks. Do not hit, as the magnet may shatter into hazardous fragments.

No play value

Adult use only. Small elements pose a choking risk, causing serious injuries. Store away from kids and pets.

Finger safety

Big blocks can smash fingers in a fraction of a second. Under no circumstances put your hand between two attracting surfaces.

Safe distance

Equipment safety: Neodymium magnets can ruin payment cards and sensitive devices (heart implants, hearing aids, mechanical watches).

Nickel allergy

A percentage of the population experience a hypersensitivity to nickel, which is the standard coating for NdFeB magnets. Prolonged contact can result in skin redness. We suggest use safety gloves.

Warning! Details about risks in the article: Magnet Safety Guide.

MW 25x2.5 / N38 - cylindrical magnet

Detailed specification - MW 25x2.5 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical simulation of the magnet - technical parameters

Table 1: Static pull force (pull vs distance) - power drop MW 25x2.5 / N38

Table 2: Sliding hold (wall) MW 25x2.5 / N38

Table 3: Wall mounting (shearing) - vertical pull MW 25x2.5 / N38

Table 4: Material efficiency (saturation) - sheet metal selection MW 25x2.5 / N38

Table 5: Thermal stability (stability) - power drop MW 25x2.5 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system MW 25x2.5 / N38

Table 7: Hazards (electronics) - precautionary measures MW 25x2.5 / N38

Table 8: Impact energy (cracking risk) - collision effects MW 25x2.5 / N38

Table 9: Anti-corrosion coating durability MW 25x2.5 / N38

Table 10: Electrical data (Flux) MW 25x2.5 / N38

Table 11: Submerged application MW 25x2.5 / N38

1. Shear force

2. Efficiency vs thickness

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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UMT 12x20 white / N38 - board holder

Advantages and disadvantages of Nd2Fe14B magnets.

Advantages

Cons

Lifting parameters

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

Determinants of lifting force in real conditions

H&S for magnets

Impact on smartphones

Powerful field

Health Danger

Flammability

Heat warning

Material brittleness

No play value

Finger safety

Safe distance

Nickel allergy

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (pull vs distance) - power drop
MW 25x2.5 / N38

Table 2: Sliding hold (wall)
MW 25x2.5 / N38

Table 3: Wall mounting (shearing) - vertical pull
MW 25x2.5 / N38

Table 4: Material efficiency (saturation) - sheet metal selection
MW 25x2.5 / N38

Table 5: Thermal stability (stability) - power drop
MW 25x2.5 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MW 25x2.5 / N38

Table 7: Hazards (electronics) - precautionary measures
MW 25x2.5 / N38

Table 8: Impact energy (cracking risk) - collision effects
MW 25x2.5 / N38

Table 9: Anti-corrosion coating durability
MW 25x2.5 / N38

Table 10: Electrical data (Flux)
MW 25x2.5 / N38

Table 11: Submerged application
MW 25x2.5 / N38

Advantages and disadvantages of Nd₂Fe₁₄B magnets.