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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 properties »

3.95 ZŁ with VAT / pcs + price for transport

3.21 ZŁ net + 23% VAT / pcs

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Technical - 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 analysis of the magnet - technical parameters

The following data constitute the direct effect of a physical simulation. Results were calculated on models for the class Nd₂Fe₁₄B. Operational conditions might slightly differ from theoretical values. Use these calculations as a reference point for designers.

Table 1: Static force (force vs gap) - 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 LBS 2550.0 g / 25.0 N	warning
1 mm	1177 Gs 117.7 mT	2.39 kg / 5.27 LBS 2391.6 g / 23.5 N	warning
2 mm	1121 Gs 112.1 mT	2.17 kg / 4.78 LBS 2166.6 g / 21.3 N	warning
3 mm	1050 Gs 105.0 mT	1.90 kg / 4.19 LBS 1902.7 g / 18.7 N	low risk
5 mm	887 Gs 88.7 mT	1.36 kg / 2.99 LBS 1358.4 g / 13.3 N	low risk
10 mm	511 Gs 51.1 mT	0.45 kg / 0.99 LBS 450.5 g / 4.4 N	low risk
15 mm	282 Gs 28.2 mT	0.14 kg / 0.30 LBS 137.4 g / 1.3 N	low risk
20 mm	162 Gs 16.2 mT	0.05 kg / 0.10 LBS 45.4 g / 0.4 N	low risk
30 mm	64 Gs 6.4 mT	0.01 kg / 0.02 LBS 7.0 g / 0.1 N	low risk
50 mm	17 Gs 1.7 mT	0.00 kg / 0.00 LBS 0.5 g / 0.0 N	low risk

Pulling power weakens drastically with every mm of distance. Remember that every additional insulation layer (e.g., dirt, varnish, veneer) significantly diminishes the holding power. Neodymiums hold optimally at the point of direct contact; air break kills the force. Observe how quickly the parameters drop, when the magnet does not touch directly to the metal substrate. When planning the assembly, eliminate redundant distances.

Table 2: Vertical load (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 LBS 510.0 g / 5.0 N
1 mm	Stal (~0.2)	0.48 kg / 1.05 LBS 478.0 g / 4.7 N
2 mm	Stal (~0.2)	0.43 kg / 0.96 LBS 434.0 g / 4.3 N
3 mm	Stal (~0.2)	0.38 kg / 0.84 LBS 380.0 g / 3.7 N
5 mm	Stal (~0.2)	0.27 kg / 0.60 LBS 272.0 g / 2.7 N
10 mm	Stal (~0.2)	0.09 kg / 0.20 LBS 90.0 g / 0.9 N
15 mm	Stal (~0.2)	0.03 kg / 0.06 LBS 28.0 g / 0.3 N
20 mm	Stal (~0.2)	0.01 kg / 0.02 LBS 10.0 g / 0.1 N
30 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 2.0 g / 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 0.0 g / 0.0 N

This section presents the approximate holding capacity necessary to initiate the slippage of the magnet down along a upright metal surface (considering typical friction coefficient). This value is relative to the air gap between the magnet and the surface.

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 LBS 765.0 g / 7.5 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.51 kg / 1.12 LBS 510.0 g / 5.0 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.26 kg / 0.56 LBS 255.0 g / 2.5 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	1.28 kg / 2.81 LBS 1275.0 g / 12.5 N

When hanging a magnet on a vertical surface (e.g., a fridge), it you can count on only approx. 1/5 of its nominal power. Gravity as well as a low friction coefficient cause that magnets slip easier than they pop off the substrate. Designing a wall mount? Remember that the sliding force is noticeably lower than the perpendicular breakaway force. On a smooth steel, the holder will slip down under a significantly smaller load. Utilizing a rubberized pad can drastically improve the result.

Table 4: Material efficiency (substrate influence) - 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 LBS 255.0 g / 2.5 N
1 mm	25%	0.64 kg / 1.41 LBS 637.5 g / 6.3 N
2 mm	50%	1.28 kg / 2.81 LBS 1275.0 g / 12.5 N
3 mm	75%	1.91 kg / 4.22 LBS 1912.5 g / 18.8 N
5 mm	100%	2.55 kg / 5.62 LBS 2550.0 g / 25.0 N
10 mm	100%	2.55 kg / 5.62 LBS 2550.0 g / 25.0 N
11 mm	100%	2.55 kg / 5.62 LBS 2550.0 g / 25.0 N
12 mm	100%	2.55 kg / 5.62 LBS 2550.0 g / 25.0 N

A thin sheet cannot take in the full magnetic flux, which squanders power of the magnet. Should you attach a powerful product to a thin surface, the field will penetrate right through and the attraction force will be weaker. To achieve the maximum of this neodymium's power, you require a sufficiently solid backing of metal. The saturation effect means that on thin elements (e.g., thin profiles), the holder works worse. We advise picking the steel cross-section according to the table below.

Table 5: Working in heat (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 LBS 2550.0 g / 25.0 N	OK
40 °C	-2.2%	2.49 kg / 5.50 LBS 2493.9 g / 24.5 N	OK
60 °C	-4.4%	2.44 kg / 5.37 LBS 2437.8 g / 23.9 N
80 °C	-6.6%	2.38 kg / 5.25 LBS 2381.7 g / 23.4 N
100 °C	-28.8%	1.82 kg / 4.00 LBS 1815.6 g / 17.8 N

Classic neodymiums irreversibly lose parameters after exceeding the maximum temperature. Protect against heat – high temperature can permanently demagnetize this product. As the temperature rises, the neodymium's force temporarily drops. Avoid using this magnet close to ovens higher than its safe range. Exceeding the critical threshold will cause destruction of magnetism.

*Engineering note: Temperature resistance is determined by both grade, as well as the dimension ratios. Low-profile magnets (low Pc) risk losing magnetic properties under lower heat stress than long magnets. The danger warning in the table indicates permanent field degradation for this specific geometry.

Table 6: Two magnets (attraction) - field collision
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 LBS 2 302 Gs	0.67 kg / 1.48 LBS 671 g / 6.6 N	N/A
1 mm	4.35 kg / 9.59 LBS 2 398 Gs	0.65 kg / 1.44 LBS 653 g / 6.4 N	3.92 kg / 8.63 LBS ~0 Gs
2 mm	4.19 kg / 9.25 LBS 2 355 Gs	0.63 kg / 1.39 LBS 629 g / 6.2 N	3.77 kg / 8.32 LBS ~0 Gs
3 mm	4.01 kg / 8.84 LBS 2 302 Gs	0.60 kg / 1.33 LBS 601 g / 5.9 N	3.61 kg / 7.95 LBS ~0 Gs
5 mm	3.57 kg / 7.88 LBS 2 173 Gs	0.54 kg / 1.18 LBS 536 g / 5.3 N	3.22 kg / 7.09 LBS ~0 Gs
10 mm	2.38 kg / 5.25 LBS 1 775 Gs	0.36 kg / 0.79 LBS 357 g / 3.5 N	2.14 kg / 4.73 LBS ~0 Gs
20 mm	0.79 kg / 1.74 LBS 1 022 Gs	0.12 kg / 0.26 LBS 119 g / 1.2 N	0.71 kg / 1.57 LBS ~0 Gs
50 mm	0.03 kg / 0.07 LBS 198 Gs	0.00 kg / 0.01 LBS 4 g / 0.0 N	0.03 kg / 0.06 LBS ~0 Gs
60 mm	0.01 kg / 0.03 LBS 127 Gs	0.00 kg / 0.00 LBS 2 g / 0.0 N	0.01 kg / 0.02 LBS ~0 Gs
70 mm	0.01 kg / 0.01 LBS 86 Gs	0.00 kg / 0.00 LBS 1 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
80 mm	0.00 kg / 0.01 LBS 61 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
90 mm	0.00 kg / 0.00 LBS 44 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
100 mm	0.00 kg / 0.00 LBS 33 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs

Two strong neodymiums attract each other from a much further distance than a neodymium and metal combination. Such a system of magnet-to-magnet produces a massive flux and a further horizon of action. Designing a strong closure? Apply two magnets instead of a neodymium and a steel. Remember that when connecting a pair of magnets, the impact force is huge. The repulsion force is slightly lower than the attraction, but still large.
*Field value in repulsion mode reaches ~0 Gs at the midpoint between the magnets (caused by magnetic field nullification).
Note: Figures demonstrate friction force of dual matching neodymium magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Safety (HSE) (electronics) - warnings
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
Car key	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

A strong magnetic field poses a serious hazard to electronics and pacemakers. These magnets produce a flux that disrupts operation of digital equipment. Remember: the unseen radiation passes through tissues and housings. Special caution must be taken by people with hearing aids and drug dispensers. Also at risk are: mechanical watches, car keys, speakers, and screens. Do not place the magnet near cards, hard drives, or precise measuring instruments.

Table 8: Collisions (kinetic energy) - 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 prone to chipping – a violent impact against metal risks their cracking. Control the attraction moment – a neodymium left loose turns into a projectile. Striking energy can cause material chips or injury to fingers. Hold the magnet firmly during installation 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 working with powerful specimens.

Table 9: Corrosion resistance
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. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Electrical data (P_c)
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. Key data for generator designers and motors. P_c value defines the magnet's operating point.

Table 11: Physics of underwater searching
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.

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

1. Shear force

*Note: On a vertical surface, the magnet holds merely approx. 20-30% of its perpendicular strength.

2. Efficiency vs thickness

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

3. Temperature resistance

*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) = 0.16

The chart above illustrates the magnetic characteristics of the material within the second quadrant of the hysteresis loop. The solid red line represents the demagnetization curve (material potential), while the dashed blue line is the load line based on the magnet's geometry. The P_c (Permeance Coefficient), also known as the load line slope, is a dimensionless value that describes the relationship between the magnet's shape and its magnetic stability. The intersection of these two lines (the black dot) is the operating point — it determines the actual magnetic flux density generated by the magnet in this specific configuration. A higher P_c value means the magnet is more 'slender' (tall relative to its area), resulting in a higher operating point and better resistance to irreversible demagnetization caused by external fields or temperature. A value of 0.42 is relatively low (typical for flat magnets), meaning the operating point is closer to the 'knee' of the curve — caution is advised when operating at temperatures near the maximum limit to avoid strength loss.

Technical and environmental data

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: 010449-2026

Magnet Unit Converter

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MPL 3x3x1 / N38 - lamellar magnet

0.1845 ZŁ brutto / pcs

The presented product is an incredibly powerful cylindrical magnet, made from modern NdFeB material, which, with dimensions of Ø25x2.5 mm, guarantees optimal power. This specific item is characterized by high dimensional repeatability and professional build quality, making it an ideal solution for professional engineers and designers. As a magnetic rod with impressive force (approx. 2.55 kg), this product is available off-the-shelf from our European logistics center, ensuring lightning-fast order fulfillment. Moreover, its triple-layer Ni-Cu-Ni coating effectively protects it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.

This model is created for building electric motors, advanced Hall effect sensors, and efficient filters, 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 rod is indispensable in electronics and wherever every gram matters.

Since our magnets have a very precise dimensions, the best method is to glue them into holes with a slightly larger diameter (e.g., 25.1 mm) using two-component epoxy glues. To ensure stability in industry, anaerobic resins are used, which are safe for nickel and fill the gap, guaranteeing high repeatability of the connection.

Magnets N38 are suitable for the majority of applications in modeling and machine building, where extreme miniaturization with maximum force is not required. 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 in continuous sale in our warehouse.

The presented product is a neodymium magnet with precisely defined parameters: diameter 25 mm and height 2.5 mm. 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.

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. 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.

Pros and cons of rare earth magnets.

Pros

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

They have constant strength, and over nearly 10 years their attraction force decreases symbolically – ~1% (in testing),
Neodymium magnets prove to be highly resistant to loss of magnetic properties caused by external magnetic fields,
In other words, due to the shiny surface of silver, the element is aesthetically pleasing,
Magnets possess excellent magnetic induction on the surface,
Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
Thanks to flexibility in forming and the capacity to adapt to complex applications,
Huge importance in high-tech industry – they find application in magnetic memories, electric motors, medical devices, also multitasking production systems.
Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Limitations

Disadvantages of neodymium magnets:

To avoid cracks upon strong impacts, we recommend using special steel holders. Such a solution protects the magnet and simultaneously increases its durability.
We warn that neodymium magnets can reduce their power at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
Magnets exposed to a humid environment can corrode. Therefore when using outdoors, we suggest using waterproof magnets made of rubber, plastic or other material protecting against moisture
We recommend casing - magnetic holder, due to difficulties in creating threads inside the magnet and complicated forms.
Possible danger to health – tiny shards of magnets are risky, if swallowed, which becomes key in the context of child safety. It is also worth noting that small components of these products can complicate diagnosis medical when they are in the body.
Due to complex production process, their price is higher than average,

Lifting parameters

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

The lifting capacity listed is a result of laboratory testing performed under standard conditions:

with the contact of a sheet made of low-carbon steel, guaranteeing maximum field concentration
possessing a thickness of at least 10 mm to avoid saturation
with an ideally smooth touching surface
with zero gap (without impurities)
during pulling in a direction vertical to the mounting surface
in temp. approx. 20°C

Lifting capacity in practice – influencing factors

Please note that the magnet holding will differ subject to the following factors, starting with the most relevant:

Gap (betwixt the magnet and the metal), since even a very small clearance (e.g. 0.5 mm) leads to a drastic drop in lifting capacity by up to 50% (this also applies to paint, corrosion or debris).
Pull-off angle – note that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the nominal value.
Substrate thickness – for full efficiency, the steel must be adequately massive. Paper-thin metal restricts the attraction force (the magnet "punches through" it).
Steel grade – the best choice is pure iron steel. Hardened steels may have worse magnetic properties.
Surface finish – ideal contact is possible only on smooth steel. Rough texture create air cushions, weakening the magnet.
Thermal environment – heating the magnet causes a temporary drop of force. It is worth remembering the thermal limit for a given model.

Lifting capacity testing was performed on a smooth plate of optimal thickness, under perpendicular forces, whereas under shearing force the holding force is lower. Moreover, even a minimal clearance between the magnet and the plate lowers the load capacity.

Safety rules for work with neodymium magnets

Physical harm

Risk of injury: The attraction force is so great that it can cause blood blisters, pinching, and even bone fractures. Protective gloves are recommended.

GPS Danger

Be aware: rare earth magnets produce a field that disrupts precision electronics. Keep a separation from your phone, tablet, and navigation systems.

Dust explosion hazard

Powder produced during machining of magnets is combustible. Avoid drilling into magnets unless you are an expert.

Respect the power

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

ICD Warning

Life threat: Neodymium magnets can deactivate heart devices and defibrillators. Do not approach if you have medical devices.

Adults only

Always store magnets away from children. Choking hazard is significant, and the effects of magnets clamping inside the body are fatal.

Keep away from computers

Avoid bringing magnets close to a wallet, computer, or TV. The magnetism can destroy these devices and wipe information from cards.

Risk of cracking

Despite the nickel coating, the material is delicate and not impact-resistant. Avoid impacts, as the magnet may shatter into hazardous fragments.

Heat sensitivity

Do not overheat. Neodymium magnets are sensitive to temperature. If you need operation above 80°C, look for HT versions (H, SH, UH).

Sensitization to coating

Certain individuals suffer from a sensitization to nickel, which is the standard coating for NdFeB magnets. Prolonged contact can result in skin redness. We strongly advise wear safety gloves.

Attention! More info about hazards in the article: Magnet Safety Guide.

MW 25x2.5 / N38 - cylindrical magnet

Technical - MW 25x2.5 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical analysis of the magnet - technical parameters

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

Table 2: Vertical load (wall) MW 25x2.5 / N38

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

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

Table 5: Working in heat (stability) - power drop MW 25x2.5 / N38

Table 6: Two magnets (attraction) - field collision MW 25x2.5 / N38

Table 7: Safety (HSE) (electronics) - warnings MW 25x2.5 / N38

Table 8: Collisions (kinetic energy) - collision effects MW 25x2.5 / N38

Table 9: Corrosion resistance MW 25x2.5 / N38

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

Table 11: Physics of underwater searching MW 25x2.5 / N38

1. Shear force

2. Efficiency vs thickness

3. Temperature resistance

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

Chemical composition

Environmental data

Force (pull)

Field Strength

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Pros and cons of rare earth magnets.

Pros

Limitations

Lifting parameters

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

Lifting capacity in practice – influencing factors

Safety rules for work with neodymium magnets

Physical harm

GPS Danger

Dust explosion hazard

Respect the power

ICD Warning

Adults only

Keep away from computers

Risk of cracking

Heat sensitivity

Sensitization to coating

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

Table 2: Vertical load (wall)
MW 25x2.5 / N38

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

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

Table 5: Working in heat (stability) - power drop
MW 25x2.5 / N38

Table 6: Two magnets (attraction) - field collision
MW 25x2.5 / N38

Table 7: Safety (HSE) (electronics) - warnings
MW 25x2.5 / N38

Table 8: Collisions (kinetic energy) - collision effects
MW 25x2.5 / N38

Table 9: Corrosion resistance
MW 25x2.5 / N38

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

Table 11: Physics of underwater searching
MW 25x2.5 / N38