Product available Ships today (order by 14:00)

MW 25x5 / N38AH - 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 010501

GTIN/EAN: 5906301814993

Diameter Ø

25 mm [±0,1 mm]

Height

5 mm [±0,1 mm]

Weight

18.41 g

Magnetization Direction

↑ axial

Load capacity

7.29 kg / 71.47 N

Magnetic Induction

219.99 mT / 2200 Gs

Coating

[NiCuNi] Nickel

view parameters »

16.68 ZŁ with VAT / pcs + price for transport

13.56 ZŁ net + 23% VAT / pcs

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Product card - MW 25x5 / N38AH - cylindrical magnet

Specification / characteristics - MW 25x5 / N38AH - cylindrical magnet

properties

properties	values
Cat. no.	010501
GTIN/EAN	5906301814993
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	5 mm [±0,1 mm]
Weight	18.41 g
Magnetization Direction	↑ axial
Load capacity ~ ?	7.29 kg / 71.47 N
Magnetic Induction ~ ?	219.99 mT / 2200 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38AH

Specification / characteristics MW 25x5 / N38AH - cylindrical magnet

properties	values	units
remenance Br [min. - max.] ?	12.2-12.5	kGs
remenance Br [min. - max.] ?	1120-1250	mT
coercivity bHc ?	≥ 11.3	kOe
coercivity bHc ?	≥ 899	kA/m
actual internal force iHc	≥ 33	kOe
actual internal force iHc	≥ 2624	kA/m
energy density [min. - max.] ?	36-39	BH max MGOe
energy density [min. - max.] ?	287-310	BH max KJ/m
max. temperature ?	≤ 230	°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

Engineering simulation of the magnet - report

Presented values constitute the outcome of a engineering analysis. Results rely on algorithms for the class Nd₂Fe₁₄B. Actual parameters may deviate from the simulation results. Please consider these calculations as a supplementary guide during assembly planning.

Table 1: Static force (force vs gap) - power drop
MW 25x5 / N38AH

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	2292 Gs 229.2 mT	7.29 kg / 16.07 pounds 7290.0 g / 71.5 N	medium risk
1 mm	2180 Gs 218.0 mT	6.59 kg / 14.53 pounds 6591.0 g / 64.7 N	medium risk
2 mm	2042 Gs 204.2 mT	5.78 kg / 12.75 pounds 5782.0 g / 56.7 N	medium risk
3 mm	1888 Gs 188.8 mT	4.94 kg / 10.90 pounds 4942.8 g / 48.5 N	medium risk
5 mm	1564 Gs 156.4 mT	3.39 kg / 7.48 pounds 3394.1 g / 33.3 N	medium risk
10 mm	886 Gs 88.6 mT	1.09 kg / 2.40 pounds 1089.7 g / 10.7 N	weak grip
15 mm	493 Gs 49.3 mT	0.34 kg / 0.74 pounds 336.7 g / 3.3 N	weak grip
20 mm	287 Gs 28.7 mT	0.11 kg / 0.25 pounds 114.0 g / 1.1 N	weak grip
30 mm	115 Gs 11.5 mT	0.02 kg / 0.04 pounds 18.4 g / 0.2 N	weak grip
50 mm	31 Gs 3.1 mT	0.00 kg / 0.00 pounds 1.3 g / 0.0 N	weak grip

Grip strength decreases significantly with every mm of distance. Remember that even a microscopic distance (e.g., contamination, varnish, dust) significantly weakens the grip. Neodymiums work optimally during direct contact; distance nullifies the force. See how flashily the pull force plummet, when the magnet does not adhere tightly to the metal substrate. When planning the mounting, eliminate additional spacers.

Table 2: Slippage capacity (vertical surface)
MW 25x5 / N38AH

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	1.46 kg / 3.21 pounds 1458.0 g / 14.3 N
1 mm	Stal (~0.2)	1.32 kg / 2.91 pounds 1318.0 g / 12.9 N
2 mm	Stal (~0.2)	1.16 kg / 2.55 pounds 1156.0 g / 11.3 N
3 mm	Stal (~0.2)	0.99 kg / 2.18 pounds 988.0 g / 9.7 N
5 mm	Stal (~0.2)	0.68 kg / 1.49 pounds 678.0 g / 6.7 N
10 mm	Stal (~0.2)	0.22 kg / 0.48 pounds 218.0 g / 2.1 N
15 mm	Stal (~0.2)	0.07 kg / 0.15 pounds 68.0 g / 0.7 N
20 mm	Stal (~0.2)	0.02 kg / 0.05 pounds 22.0 g / 0.2 N
30 mm	Stal (~0.2)	0.00 kg / 0.01 pounds 4.0 g / 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N

The following data indicates the approximate weight limit needed to cause the slippage of the magnet down on a upright steel plate (considering typical friction coefficient). This parameter varies with the distance between the magnet and the metal.

Table 3: Wall mounting (shearing) - vertical pull
MW 25x5 / N38AH

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	2.19 kg / 4.82 pounds 2187.0 g / 21.5 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	1.46 kg / 3.21 pounds 1458.0 g / 14.3 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.73 kg / 1.61 pounds 729.0 g / 7.2 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	3.65 kg / 8.04 pounds 3645.0 g / 35.8 N

When hanging a magnet on a upright plane (e.g., a fridge), it will only hold only about 20%-30% of its nominal power. Gravity as well as a weak degree of grip cause that magnets slide down faster than they pull off. Want to create a wall mount? Note that the sliding force is significantly lower than the maximum static pull force. On a painted metal, the holder will give way down under a much lighter cargo. Application of an anti-slip coating can effectively improve the result.

Table 4: Material efficiency (substrate influence) - power losses
MW 25x5 / N38AH

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.73 kg / 1.61 pounds 729.0 g / 7.2 N
1 mm	25%	1.82 kg / 4.02 pounds 1822.5 g / 17.9 N
2 mm	50%	3.65 kg / 8.04 pounds 3645.0 g / 35.8 N
3 mm	75%	5.47 kg / 12.05 pounds 5467.5 g / 53.6 N
5 mm	100%	7.29 kg / 16.07 pounds 7290.0 g / 71.5 N
10 mm	100%	7.29 kg / 16.07 pounds 7290.0 g / 71.5 N
11 mm	100%	7.29 kg / 16.07 pounds 7290.0 g / 71.5 N
12 mm	100%	7.29 kg / 16.07 pounds 7290.0 g / 71.5 N

A thin sheet is unable to take in the full magnetic flux, which wastes potential of the magnet. If you attach a powerful product to a weak sheet, the magnetism will pass right through and the attraction force will be weaker. To achieve 100% of this neodymium's potential, you require a sufficiently solid piece of steel. The saturation phenomenon causes that on delicate walls (e.g., appliance housings), the product shows lower pull force. We recommend selecting the steel dimension according to the table below.

Table 5: Working in heat (material behavior) - thermal limit
MW 25x5 / N38AH

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	7.29 kg / 16.07 pounds 7290.0 g / 71.5 N	OK
80 °C	-6.6%	6.81 kg / 15.01 pounds 6808.9 g / 66.8 N
150 °C	-14.3%	6.25 kg / 13.77 pounds 6247.5 g / 61.3 N
200 °C	-19.8%	5.85 kg / 12.89 pounds 5846.6 g / 57.4 N
230 °C	-23.1%	5.61 kg / 12.36 pounds 5606.0 g / 55.0 N
250 °C	-45.3%	3.99 kg / 8.79 pounds 3987.6 g / 39.1 N

Standard neodymium magnets irreversibly lose parameters after exceeding the maximum temperature. Avoid high temperatures – heat can permanently destroy this magnet. With increasing heat, the magnet's force temporarily drops. Avoid using this product close to ovens higher than its safe range. Too high temperature 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) risk losing magnetic properties sooner than long magnets. Red status in the table points to a risk of irreversible loss for this particular item.

Table 6: Two magnets (repulsion) - field collision
MW 25x5 / N38AH

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	15.90 kg / 35.06 pounds 3 855 Gs	2.39 kg / 5.26 pounds 2385 g / 23.4 N	N/A
1 mm	15.19 kg / 33.48 pounds 4 480 Gs	2.28 kg / 5.02 pounds 2278 g / 22.3 N	13.67 kg / 30.13 pounds ~0 Gs
2 mm	14.38 kg / 31.70 pounds 4 359 Gs	2.16 kg / 4.75 pounds 2157 g / 21.2 N	12.94 kg / 28.53 pounds ~0 Gs
3 mm	13.51 kg / 29.79 pounds 4 226 Gs	2.03 kg / 4.47 pounds 2027 g / 19.9 N	12.16 kg / 26.81 pounds ~0 Gs
5 mm	11.70 kg / 25.79 pounds 3 932 Gs	1.75 kg / 3.87 pounds 1755 g / 17.2 N	10.53 kg / 23.21 pounds ~0 Gs
10 mm	7.40 kg / 16.32 pounds 3 128 Gs	1.11 kg / 2.45 pounds 1111 g / 10.9 N	6.66 kg / 14.69 pounds ~0 Gs
20 mm	2.38 kg / 5.24 pounds 1 773 Gs	0.36 kg / 0.79 pounds 357 g / 3.5 N	2.14 kg / 4.72 pounds ~0 Gs
50 mm	0.09 kg / 0.21 pounds 354 Gs	0.01 kg / 0.03 pounds 14 g / 0.1 N	0.09 kg / 0.19 pounds ~0 Gs
60 mm	0.04 kg / 0.09 pounds 231 Gs	0.01 kg / 0.01 pounds 6 g / 0.1 N	0.04 kg / 0.08 pounds ~0 Gs
70 mm	0.02 kg / 0.04 pounds 157 Gs	0.00 kg / 0.01 pounds 3 g / 0.0 N	0.02 kg / 0.04 pounds ~0 Gs
80 mm	0.01 kg / 0.02 pounds 112 Gs	0.00 kg / 0.00 pounds 1 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
90 mm	0.01 kg / 0.01 pounds 82 Gs	0.00 kg / 0.00 pounds 1 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
100 mm	0.00 kg / 0.01 pounds 62 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs

Two magnets interact from a wider radius than a magnet and sheet setup. The connection of two magnets produces a massive flux and a wider radius of operation. Planning to create a strong closure? Use a pair of magnets instead of one magnet and a steel. Remember that when bringing together two magnets, the impact force is huge. The repulsion force is a bit weaker than the connection force, but still significant.
*The magnetic induction for N-N configuration reaches ~0 Gs in the exact middle between the magnets (due to field cancellation).
Attention: Results show friction force of a pair of matching neodymium magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Safety (HSE) (implants) - warnings
MW 25x5 / N38AH

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	10.0 cm
Hearing aid	10 Gs (1.0 mT)	7.5 cm
Timepiece	20 Gs (2.0 mT)	6.0 cm
Phone / Smartphone	40 Gs (4.0 mT)	5.0 cm
Remote	50 Gs (5.0 mT)	4.5 cm
Payment card	400 Gs (40.0 mT)	2.0 cm
HDD hard drive	600 Gs (60.0 mT)	1.5 cm

Extremely neodym field is a real danger to IT equipment as well as pacemakers. These magnets produce a field that prevents correct functioning of digital equipment. Remember: the unseen radiation penetrates the body and plastic. Increased vigilance must be exercised by people with hearing aids and insulin pumps. Influence will be felt by: mechanical watches, car keys, membranes, and screens. Do not place the magnet near cards, HDD media, or precise measuring instruments.

Table 8: Impact energy (kinetic energy) - warning
MW 25x5 / N38AH

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	21.86 km/h (6.07 m/s)	0.34 J
30 mm	34.81 km/h (9.67 m/s)	0.86 J
50 mm	44.88 km/h (12.47 m/s)	1.43 J
100 mm	63.46 km/h (17.63 m/s)	2.86 J

Magnetic elements are very brittle – a collision with steel can result in shattering. Pay attention to connection velocity – a neodymium left loose becomes dangerous. Kinetic force can cause material chips or painful pinches to skin. Be sure to control the product during mounting so it doesn't slam with momentum against the steel surface. A collision at high speed means shattering of the magnet. Use safety goggles when handling with large magnets.

Table 9: Coating parameters (durability)
MW 25x5 / N38AH

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. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Electrical data (Flux)
MW 25x5 / N38AH

Parameter	Value	SI Unit / Description
Magnetic Flux	13 054 Mx	130.5 µWb
P_c Coefficient	0.29	Low (Flat)

Flux value passing through the pole surface. Essential parameter in coil applications and motors. P_c value determines the working geometry.

Table 11: Physics of underwater searching
MW 25x5 / N38AH

Environment	Effective steel pull	Effect
Air (land)	7.29 kg	Standard
Water (riverbed)	8.35 kg (+1.06 kg buoyancy gain)	+14.5%

Rust risk: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!

Contrary to myths, water does not block the magnetic field. Buoyancy helps in lifting finds.

1. Wall mount (shear)

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

2. Steel thickness impact

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

3. Heat tolerance

*For N38 material, the safety limit is 80°C.

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.29

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: 010501-2026

Measurement Calculator

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MW 12x4 / N38 - cylindrical magnet

1.353 ZŁ brutto / pcs

The offered product is a very strong cylinder magnet, produced from durable NdFeB material, which, with dimensions of Ø25x5 mm, guarantees optimal power. The MW 25x5 / N38AH model features an accuracy of ±0.1mm and industrial build quality, making it an excellent solution for professional engineers and designers. As a magnetic rod with significant force (approx. 7.29 kg), this product is available off-the-shelf from our European logistics center, ensuring rapid order fulfillment. Additionally, its triple-layer Ni-Cu-Ni coating shields it against corrosion in standard operating conditions, guaranteeing an aesthetic appearance and durability for years.

This model is created for building generators, advanced Hall effect sensors, and efficient magnetic separators, where field concentration on a small surface counts. Thanks to the high power of 71.47 N with a weight of only 18.41 g, this rod is indispensable in electronics and wherever low weight is crucial.

Since our magnets have a very precise dimensions, the recommended way is to glue them into holes with a slightly larger diameter (e.g., 25.1 mm) using epoxy glues. To ensure stability in automation, anaerobic resins 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 industrial neodymium magnets, offering an optimal price-to-power ratio and operational stability. If you need the strongest magnets in the same volume (Ø25x5), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our store.

The presented product is a neodymium magnet with precisely defined parameters: diameter 25 mm and height 5 mm. The value of 71.47 N means that the magnet is capable of holding a weight many times exceeding its own mass of 18.41 g. The product has a [NiCuNi] coating, which protects the surface 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 25 mm. Such an arrangement is most desirable 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 as well as disadvantages of neodymium magnets.

Benefits

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

They do not lose magnetism, even during approximately 10 years – the decrease in strength is only ~1% (according to tests),
Neodymium magnets remain remarkably resistant to demagnetization caused by external interference,
By using a shiny layer of nickel, the element gains an modern look,
Magnetic induction on the working part of the magnet remains very high,
Due to their durability and thermal resistance, neodymium magnets can operate (depending on the shape) even at high temperatures reaching 230°C or more...
Thanks to modularity in shaping and the capacity to adapt to client solutions,
Significant place in innovative solutions – they are utilized in data components, drive modules, medical devices, and complex engineering applications.
Compactness – despite small sizes they generate large force, making them ideal for precision applications

Limitations

Disadvantages of neodymium magnets:

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 force. Often, when the temperature exceeds 80°C, their power decreases (depending on the size and shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
They oxidize in a humid environment. For use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
Limited possibility of producing nuts in the magnet and complicated forms - recommended is cover - magnet mounting.
Possible danger to health – tiny shards of magnets can be dangerous, when accidentally swallowed, which is particularly important in the context of child safety. It is also worth noting that small components of these magnets are able to complicate diagnosis medical after entering the body.
With large orders the cost of neodymium magnets is a challenge,

Pull force analysis

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

The load parameter shown concerns the maximum value, measured under optimal environment, namely:

on a block made of mild steel, optimally conducting the magnetic flux
with a thickness minimum 10 mm
with an ground contact surface
without any air gap between the magnet and steel
under perpendicular application of breakaway force (90-degree angle)
at ambient temperature approx. 20 degrees Celsius

Determinants of lifting force in real conditions

In real-world applications, the real power depends on several key aspects, ranked from crucial:

Distance (betwixt the magnet and the metal), since even a tiny clearance (e.g. 0.5 mm) can cause a drastic drop in lifting capacity by up to 50% (this also applies to varnish, corrosion or dirt).
Pull-off angle – note that the magnet has greatest strength perpendicularly. Under sliding down, the holding force drops significantly, often to levels of 20-30% of the maximum value.
Element thickness – to utilize 100% power, the steel must be adequately massive. Paper-thin metal restricts the attraction force (the magnet "punches through" it).
Plate material – mild steel attracts best. Alloy admixtures lower magnetic permeability and holding force.
Surface structure – the more even the plate, the better the adhesion and stronger the hold. Unevenness creates an air distance.
Thermal conditions – neodymium magnets have a negative temperature coefficient. When it is hot they are weaker, and at low temperatures gain strength (up to a certain limit).

Lifting capacity testing was conducted on plates with a smooth surface of suitable thickness, under a perpendicular pulling force, in contrast under shearing force the load capacity is reduced by as much as 5 times. Moreover, even a slight gap between the magnet’s surface and the plate decreases the holding force.

Safe handling of neodymium magnets

Do not overheat magnets

Avoid heat. NdFeB magnets are susceptible to temperature. If you need operation above 80°C, inquire about special high-temperature series (H, SH, UH).

Swallowing risk

Only for adults. Tiny parts pose a choking risk, leading to intestinal necrosis. Keep out of reach of kids and pets.

Eye protection

Despite metallic appearance, the material is brittle and cannot withstand shocks. Avoid impacts, as the magnet may shatter into hazardous fragments.

Threat to electronics

Intense magnetic fields can destroy records on credit cards, HDDs, and other magnetic media. Stay away of at least 10 cm.

Fire risk

Mechanical processing of NdFeB material poses a fire hazard. Magnetic powder oxidizes rapidly with oxygen and is difficult to extinguish.

Danger to pacemakers

Medical warning: Strong magnets can turn off pacemakers and defibrillators. Stay away if you have electronic implants.

Avoid contact if allergic

Certain individuals experience a sensitization to Ni, which is the common plating for neodymium magnets. Frequent touching might lead to an allergic reaction. We strongly advise wear safety gloves.

Conscious usage

Handle magnets consciously. Their powerful strength can surprise even experienced users. Stay alert and do not underestimate their force.

Bone fractures

Watch your fingers. Two large magnets will snap together instantly with a force of several hundred kilograms, destroying anything in their path. Exercise extreme caution!

Impact on smartphones

Remember: neodymium magnets produce a field that disrupts precision electronics. Maintain a safe distance from your mobile, device, and navigation systems.

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

MW 25x5 / N38AH - cylindrical magnet

Product card - MW 25x5 / N38AH - cylindrical magnet

Magnetic properties of material N38AH

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering simulation of the magnet - report

Table 1: Static force (force vs gap) - power drop MW 25x5 / N38AH

Table 2: Slippage capacity (vertical surface) MW 25x5 / N38AH

Table 3: Wall mounting (shearing) - vertical pull MW 25x5 / N38AH

Table 4: Material efficiency (substrate influence) - power losses MW 25x5 / N38AH

Table 5: Working in heat (material behavior) - thermal limit MW 25x5 / N38AH

Table 6: Two magnets (repulsion) - field collision MW 25x5 / N38AH

Table 7: Safety (HSE) (implants) - warnings MW 25x5 / N38AH

Table 8: Impact energy (kinetic energy) - warning MW 25x5 / N38AH

Table 9: Coating parameters (durability) MW 25x5 / N38AH

Table 10: Electrical data (Flux) MW 25x5 / N38AH

Table 11: Physics of underwater searching MW 25x5 / N38AH

1. Wall mount (shear)

2. Steel thickness impact

3. Heat tolerance

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

Elemental analysis

Ecology and recycling (GPSR)

Magnet pull force

Magnetic Field

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MW 12x4 / N38 - cylindrical magnet

Advantages as well as disadvantages of neodymium magnets.

Benefits

Limitations

Pull force analysis

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

Determinants of lifting force in real conditions

Safe handling of neodymium magnets

Do not overheat magnets

Swallowing risk

Eye protection

Threat to electronics

Fire risk

Danger to pacemakers

Avoid contact if allergic

Conscious usage

Bone fractures

Impact on smartphones

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs gap) - power drop
MW 25x5 / N38AH

Table 2: Slippage capacity (vertical surface)
MW 25x5 / N38AH

Table 3: Wall mounting (shearing) - vertical pull
MW 25x5 / N38AH

Table 4: Material efficiency (substrate influence) - power losses
MW 25x5 / N38AH

Table 5: Working in heat (material behavior) - thermal limit
MW 25x5 / N38AH

Table 6: Two magnets (repulsion) - field collision
MW 25x5 / N38AH

Table 7: Safety (HSE) (implants) - warnings
MW 25x5 / N38AH

Table 8: Impact energy (kinetic energy) - warning
MW 25x5 / N38AH

Table 9: Coating parameters (durability)
MW 25x5 / N38AH

Table 10: Electrical data (Flux)
MW 25x5 / N38AH

Table 11: Physics of underwater searching
MW 25x5 / N38AH