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MW 25x12 / N38 - cylindrical magnet

Name: Dhit sp. z o.o.
Address: Kościuszki 6A, Ożarów Mazowiecki, mazowieckie, 05-850, PL
Telephone: +48 22 499 98 98
Price range: 1-6500 PLN
Rating: 5

cylindrical magnet

Catalog no 010502

GTIN/EAN: 5906301814986

5.00

Diameter Ø

25 mm [±0,1 mm]

Height

12 mm [±0,1 mm]

Weight

44.18 g

Magnetization Direction

↑ axial

Load capacity

19.60 kg / 192.25 N

Magnetic Induction

429.18 mT / 4292 Gs

Coating

[NiCuNi] Nickel

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Product card - MW 25x12 / N38 - cylindrical magnet

Specification / characteristics - MW 25x12 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010502
GTIN/EAN	5906301814986
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	12 mm [±0,1 mm]
Weight	44.18 g
Magnetization Direction	↑ axial
Load capacity ~ ?	19.60 kg / 192.25 N
Magnetic Induction ~ ?	429.18 mT / 4292 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 25x12 / 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 modeling of the product - technical parameters

The following values constitute the result of a mathematical simulation. Results were calculated on algorithms for the material Nd₂Fe₁₄B. Real-world parameters might slightly differ from theoretical values. Use these data as a supplementary guide for designers.

Table 1: Static pull force (force vs gap) - interaction chart
MW 25x12 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	4291 Gs 429.1 mT	19.60 kg / 43.21 lbs 19600.0 g / 192.3 N	crushing
1 mm	3975 Gs 397.5 mT	16.82 kg / 37.08 lbs 16820.5 g / 165.0 N	crushing
2 mm	3645 Gs 364.5 mT	14.15 kg / 31.19 lbs 14147.5 g / 138.8 N	crushing
3 mm	3316 Gs 331.6 mT	11.71 kg / 25.81 lbs 11707.5 g / 114.9 N	crushing
5 mm	2692 Gs 269.2 mT	7.72 kg / 17.02 lbs 7718.0 g / 75.7 N	warning
10 mm	1518 Gs 151.8 mT	2.45 kg / 5.41 lbs 2451.8 g / 24.1 N	warning
15 mm	863 Gs 86.3 mT	0.79 kg / 1.75 lbs 793.5 g / 7.8 N	safe
20 mm	517 Gs 51.7 mT	0.29 kg / 0.63 lbs 285.1 g / 2.8 N	safe
30 mm	219 Gs 21.9 mT	0.05 kg / 0.11 lbs 51.2 g / 0.5 N	safe
50 mm	63 Gs 6.3 mT	0.00 kg / 0.01 lbs 4.2 g / 0.0 N	safe

Grip strength drops sharply per each millimeter of distance. Note that every additional insulation layer (e.g., contamination, varnish, veneer) noticeably diminishes the holding power. Magnetic products work strongest in perfect adhesion; air break drastically cuts the power. Notice how flashily the parameters drop, when the product does not touch tightly to the steel surface. When planning the mounting, avoid additional spacers.

Table 2: Shear load (vertical surface)
MW 25x12 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	3.92 kg / 8.64 lbs 3920.0 g / 38.5 N
1 mm	Stal (~0.2)	3.36 kg / 7.42 lbs 3364.0 g / 33.0 N
2 mm	Stal (~0.2)	2.83 kg / 6.24 lbs 2830.0 g / 27.8 N
3 mm	Stal (~0.2)	2.34 kg / 5.16 lbs 2342.0 g / 23.0 N
5 mm	Stal (~0.2)	1.54 kg / 3.40 lbs 1544.0 g / 15.1 N
10 mm	Stal (~0.2)	0.49 kg / 1.08 lbs 490.0 g / 4.8 N
15 mm	Stal (~0.2)	0.16 kg / 0.35 lbs 158.0 g / 1.5 N
20 mm	Stal (~0.2)	0.06 kg / 0.13 lbs 58.0 g / 0.6 N
30 mm	Stal (~0.2)	0.01 kg / 0.02 lbs 10.0 g / 0.1 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N

This section calculates the approximate shear load sufficient to initiate the slippage of the magnet downwards against a upright steel wall (considering standard friction). The holding force varies with the air gap between the magnet and the surface.

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MW 25x12 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	5.88 kg / 12.96 lbs 5880.0 g / 57.7 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	3.92 kg / 8.64 lbs 3920.0 g / 38.5 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	1.96 kg / 4.32 lbs 1960.0 g / 19.2 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	9.80 kg / 21.61 lbs 9800.0 g / 96.1 N

When hanging a holder on a upright wall (e.g., a fridge), it will maintain just about 20%-30% of its nominal power. Gravitational force as well as a weak degree of grip cause that products slip easier than they pull off. Want to create a wall mount? Consider that the shear force is significantly lower than the perpendicular breakaway force. On a slippery surface, the element will slide down under a significantly smaller weight. Using a rubber pad can significantly raise the stability.

Table 4: Steel thickness (saturation) - power losses
MW 25x12 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	5%	0.98 kg / 2.16 lbs 980.0 g / 9.6 N
1 mm	13%	2.45 kg / 5.40 lbs 2450.0 g / 24.0 N
2 mm	25%	4.90 kg / 10.80 lbs 4900.0 g / 48.1 N
3 mm	38%	7.35 kg / 16.20 lbs 7350.0 g / 72.1 N
5 mm	63%	12.25 kg / 27.01 lbs 12250.0 g / 120.2 N
10 mm	100%	19.60 kg / 43.21 lbs 19600.0 g / 192.3 N
11 mm	100%	19.60 kg / 43.21 lbs 19600.0 g / 192.3 N
12 mm	100%	19.60 kg / 43.21 lbs 19600.0 g / 192.3 N

A thin metal plate cannot absorb the full magnetic flux, which squanders power of the magnet. Should you mount a strong magnet to a weak sheet, the field will pass right through and the pull force will drop sharply. To squeeze 100% of this magnet's potential, you need a suitably thick backing of steel. The saturation effect causes that on sheet metal structures (e.g., car bodies), the product shows lower pull force. We advise picking the steel dimension from these parameters.

Table 5: Thermal resistance (material behavior) - resistance threshold
MW 25x12 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	19.60 kg / 43.21 lbs 19600.0 g / 192.3 N	OK
40 °C	-2.2%	19.17 kg / 42.26 lbs 19168.8 g / 188.0 N	OK
60 °C	-4.4%	18.74 kg / 41.31 lbs 18737.6 g / 183.8 N
80 °C	-6.6%	18.31 kg / 40.36 lbs 18306.4 g / 179.6 N
100 °C	-28.8%	13.96 kg / 30.77 lbs 13955.2 g / 136.9 N

Ordinary NdFeB products lose strength above the temperature limit. Protect against heat – high temperature can permanently damage this magnet. With increasing heat, the neodymium's capacity briefly decreases. Do not use this product near heat sources exceeding its operating temperature limit. Ignoring the limit will cause irreversible degradation of magnetism.

*Engineering note: Thermal stability is determined by both grade, and the Permeance Coefficient Pc. Thin magnets (low permeance coefficient) may lose charge permanently under lower heat stress compared to rod magnets. Warning indicator in the table indicates a risk of irreversible loss for this particular item.

Table 6: Two magnets (repulsion) - field range
MW 25x12 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	55.71 kg / 122.82 lbs 5 494 Gs	8.36 kg / 18.42 lbs 8357 g / 82.0 N	N/A
1 mm	51.78 kg / 114.14 lbs 8 273 Gs	7.77 kg / 17.12 lbs 7766 g / 76.2 N	46.60 kg / 102.73 lbs ~0 Gs
2 mm	47.81 kg / 105.40 lbs 7 949 Gs	7.17 kg / 15.81 lbs 7172 g / 70.4 N	43.03 kg / 94.86 lbs ~0 Gs
3 mm	43.94 kg / 96.88 lbs 7 621 Gs	6.59 kg / 14.53 lbs 6592 g / 64.7 N	39.55 kg / 87.19 lbs ~0 Gs
5 mm	36.65 kg / 80.80 lbs 6 960 Gs	5.50 kg / 12.12 lbs 5497 g / 53.9 N	32.98 kg / 72.72 lbs ~0 Gs
10 mm	21.94 kg / 48.36 lbs 5 385 Gs	3.29 kg / 7.25 lbs 3291 g / 32.3 N	19.74 kg / 43.53 lbs ~0 Gs
20 mm	6.97 kg / 15.36 lbs 3 035 Gs	1.05 kg / 2.30 lbs 1045 g / 10.3 N	6.27 kg / 13.83 lbs ~0 Gs
50 mm	0.33 kg / 0.72 lbs 657 Gs	0.05 kg / 0.11 lbs 49 g / 0.5 N	0.29 kg / 0.65 lbs ~0 Gs
60 mm	0.15 kg / 0.32 lbs 439 Gs	0.02 kg / 0.05 lbs 22 g / 0.2 N	0.13 kg / 0.29 lbs ~0 Gs
70 mm	0.07 kg / 0.16 lbs 306 Gs	0.01 kg / 0.02 lbs 11 g / 0.1 N	0.06 kg / 0.14 lbs ~0 Gs
80 mm	0.04 kg / 0.08 lbs 221 Gs	0.01 kg / 0.01 lbs 6 g / 0.1 N	0.03 kg / 0.07 lbs ~0 Gs
90 mm	0.02 kg / 0.05 lbs 165 Gs	0.00 kg / 0.01 lbs 3 g / 0.0 N	0.02 kg / 0.04 lbs ~0 Gs
100 mm	0.01 kg / 0.03 lbs 126 Gs	0.00 kg / 0.00 lbs 2 g / 0.0 N	0.01 kg / 0.02 lbs ~0 Gs

Two magnetic products attract each other from a wider radius than a magnet and sheet setup. The setup of magnet-to-magnet generates a stronger field and a further horizon of performance. Designing a powerful holder? Use a pair of magnets instead of one magnet and a striker plate. Exercise caution that when connecting a pair of magnets, the collision energy is huge. The repulsion force is marginally weaker than the connection force, but still impressive.
*Flux density in repulsion mode is approximately ~0 Gs in the exact middle between the magnets (resulting from vector opposition).
Important: Figures refer to shear force of a pair of identical magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Safety (HSE) (implants) - warnings
MW 25x12 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	13.0 cm
Hearing aid	10 Gs (1.0 mT)	10.0 cm
Timepiece	20 Gs (2.0 mT)	8.0 cm
Phone / Smartphone	40 Gs (4.0 mT)	6.0 cm
Remote	50 Gs (5.0 mT)	5.5 cm
Payment card	400 Gs (40.0 mT)	2.5 cm
HDD hard drive	600 Gs (60.0 mT)	2.0 cm

Extremely neodym field is a large risk to electronics and medical implants. These magnets generate a flux that destroys function of sensitive medical devices. Be aware: the unseen radiation penetrates the body and plastic. Special caution must be taken by people with hearing aids and insulin pumps. Also at risk are: mechanical watches, car keys, speakers, and screens. Do not place the magnet near cards, HDD media, or sensitive navigation tools.

Table 8: Impact energy (kinetic energy) - warning
MW 25x12 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	22.84 km/h (6.35 m/s)	0.89 J
30 mm	36.85 km/h (10.24 m/s)	2.31 J
50 mm	47.51 km/h (13.20 m/s)	3.85 J
100 mm	67.17 km/h (18.66 m/s)	7.69 J

NdFeB products are very brittle – a strong collision with metal causes immediate chipping. Pay attention to connection velocity – a neodymium left loose becomes dangerous. Kinetic force can trigger coating fragments or painful pinches to fingers. Hold the magnet firmly during bringing near metal so it doesn't hit violently against the steel surface. A contact at a velocity of dozens of km/h means shattering of the neodymium. Wear safety glasses when playing with large magnets.

Table 9: Coating parameters (durability)
MW 25x12 / 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)

For outdoor applications, an epoxy coating is required; standard nickel is intended for indoor use. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Construction data (Flux)
MW 25x12 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	21 413 Mx	214.1 µWb
P_c Coefficient	0.57	Low (Flat)

Flux value passing through the magnet pole. Key data for generator designers as well as sensors. P_c value determines the working geometry.

Table 11: Hydrostatics and buoyancy
MW 25x12 / N38

Environment	Effective steel pull	Effect
Air (land)	19.60 kg	Standard
Water (riverbed)	22.44 kg (+2.84 kg buoyancy gain)	+14.5%

Warning: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.

The magnetic field penetrates through water without any losses. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Vertical hold

*Caution: On a vertical surface, the magnet holds just ~20% of its perpendicular strength.

2. Steel thickness impact

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

3. Temperature resistance

*For standard magnets, the critical limit is 80°C.

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.57

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

Technical specification and ecology

Chemical composition

iron (Fe)	64% – 68%
neodymium (Nd)	29% – 32%
boron (B)	1.1% – 1.2%
dysprosium (Dy)	0.5% – 2.0%
coating (Ni-Cu-Ni)	< 0.05%

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: 010502-2026

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The offered product is an exceptionally strong cylindrical magnet, made from modern NdFeB material, which, at dimensions of Ø25x12 mm, guarantees the highest energy density. This specific item features an accuracy of ±0.1mm and professional build quality, making it an ideal solution for the most demanding engineers and designers. As a magnetic rod with significant force (approx. 19.60 kg), this product is available off-the-shelf from our warehouse in Poland, ensuring rapid order fulfillment. Furthermore, its triple-layer Ni-Cu-Ni coating secures it against corrosion in typical operating conditions, ensuring an aesthetic appearance and durability for years.

It successfully proves itself in DIY projects, advanced robotics, and broadly understood industry, serving as a fastening or actuating element. Thanks to the pull force of 192.25 N with a weight of only 44.18 g, this rod is indispensable in miniature devices 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 chipping the coating of this precision component. To ensure long-term durability in automation, anaerobic resins are used, which do not react with the nickel coating and fill the gap, guaranteeing high repeatability of the connection.

Magnets NdFeB grade N38 are strong enough for the majority of applications in modeling and machine building, where extreme miniaturization with maximum force is not required. If you need the strongest magnets in the same volume (Ø25x12), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our warehouse.

This model is characterized by dimensions Ø25x12 mm, which, at a weight of 44.18 g, makes it an element with impressive magnetic energy density. The value of 192.25 N means that the magnet is capable of holding a weight many times exceeding its own mass of 44.18 g. The product has a [NiCuNi] coating, which secures it against external factors, giving it an aesthetic, silvery shine.

This cylinder is magnetized axially (along the height of 12 mm), which means that the N and S poles are located on the flat, circular surfaces. 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 diametrically if your project requires it.

Advantages and disadvantages of rare earth magnets.

Pros

In addition to their magnetic efficiency, neodymium magnets provide the following advantages:

They virtually do not lose power, because even after 10 years the decline in efficiency is only ~1% (according to literature),
Magnets very well resist against loss of magnetization caused by foreign field sources,
The use of an elegant coating of noble metals (nickel, gold, silver) causes the element to be more visually attractive,
Neodymium magnets achieve maximum magnetic induction on a small area, which ensures high operational effectiveness,
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...
Considering the possibility of precise forming and adaptation to specialized solutions, magnetic components can be produced in a broad palette of geometric configurations, which makes them more universal,
Significant place in advanced technology sectors – they find application in data components, electric drive systems, diagnostic systems, as well as other advanced devices.
Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Limitations

Disadvantages of neodymium magnets:

At strong impacts they can break, therefore we recommend placing them in strong housings. A metal housing provides additional protection against damage and increases the magnet's durability.
When exposed to high temperature, neodymium magnets experience a drop in power. 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 rust in a humid environment - during use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
Limited ability of producing threads in the magnet and complex shapes - preferred is casing - magnet mounting.
Potential hazard resulting from small fragments of magnets are risky, if swallowed, which gains importance in the context of child safety. It is also worth noting that small elements of these magnets are able to complicate diagnosis medical after entering the body.
High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which hinders application in large quantities

Lifting parameters

Maximum lifting force for a neodymium magnet – what it depends on?

The force parameter is a result of laboratory testing performed under specific, ideal conditions:

with the application of a yoke made of low-carbon steel, guaranteeing full magnetic saturation
with a cross-section no less than 10 mm
with an ideally smooth contact surface
under conditions of no distance (metal-to-metal)
for force acting at a right angle (pull-off, not shear)
at ambient temperature room level

Magnet lifting force in use – key factors

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

Air gap (betwixt the magnet and the plate), since even a microscopic distance (e.g. 0.5 mm) can cause a decrease in force by up to 50% (this also applies to varnish, corrosion or debris).
Direction of force – highest force is obtained only during pulling at a 90° angle. The shear force of the magnet along the surface is typically several times lower (approx. 1/5 of the lifting capacity).
Element thickness – for full efficiency, the steel must be adequately massive. Thin sheet limits the lifting capacity (the magnet "punches through" it).
Steel grade – ideal substrate is high-permeability steel. Hardened steels may generate lower lifting capacity.
Surface condition – smooth surfaces ensure maximum contact, which increases force. Uneven metal reduce efficiency.
Thermal conditions – NdFeB sinters have a sensitivity to temperature. At higher temperatures they are weaker, and in frost they can be stronger (up to a certain limit).

Lifting capacity testing was performed on plates with a smooth surface of optimal thickness, under perpendicular forces, whereas under parallel forces the lifting capacity is smaller. Additionally, even a minimal clearance between the magnet’s surface and the plate lowers the lifting capacity.

Safety rules for work with neodymium magnets

Handling guide

Use magnets with awareness. Their huge power can surprise even professionals. Be vigilant and respect their force.

Maximum temperature

Do not overheat. Neodymium magnets are sensitive to temperature. If you need resistance above 80°C, ask us about HT versions (H, SH, UH).

Fragile material

NdFeB magnets are ceramic materials, which means they are fragile like glass. Clashing of two magnets will cause them shattering into shards.

Electronic devices

Equipment safety: Neodymium magnets can ruin payment cards and sensitive devices (pacemakers, medical aids, mechanical watches).

Do not drill into magnets

Combustion risk: Rare earth powder is explosive. Do not process magnets without safety gear as this risks ignition.

Magnetic interference

Remember: neodymium magnets generate a field that interferes with precision electronics. Keep a separation from your phone, device, and navigation systems.

ICD Warning

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

Finger safety

Danger of trauma: The attraction force is so great that it can result in blood blisters, pinching, and even bone fractures. Use thick gloves.

No play value

Strictly keep magnets out of reach of children. Choking hazard is significant, and the consequences of magnets clamping inside the body are fatal.

Allergic reactions

A percentage of the population experience a contact allergy to nickel, which is the standard coating for NdFeB magnets. Prolonged contact may cause an allergic reaction. It is best to wear safety gloves.

Safety First! Want to know more? Read our article: Why are neodymium magnets dangerous?

MW 25x12 / N38 - cylindrical magnet

Product card - MW 25x12 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical modeling of the product - technical parameters

Table 1: Static pull force (force vs gap) - interaction chart MW 25x12 / N38

Table 2: Shear load (vertical surface) MW 25x12 / N38

Table 3: Wall mounting (shearing) - behavior on slippery surfaces MW 25x12 / N38

Table 4: Steel thickness (saturation) - power losses MW 25x12 / N38

Table 5: Thermal resistance (material behavior) - resistance threshold MW 25x12 / N38

Table 6: Two magnets (repulsion) - field range MW 25x12 / N38

Table 7: Safety (HSE) (implants) - warnings MW 25x12 / N38

Table 8: Impact energy (kinetic energy) - warning MW 25x12 / N38

Table 9: Coating parameters (durability) MW 25x12 / N38

Table 10: Construction data (Flux) MW 25x12 / N38

Table 11: Hydrostatics and buoyancy MW 25x12 / N38

1. Vertical hold

2. Steel thickness impact

3. Temperature resistance

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

Chemical composition

Ecology and recycling (GPSR)

Magnet pull force

Magnetic Field

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Advantages and disadvantages of rare earth magnets.

Pros

Limitations

Lifting parameters

Maximum lifting force for a neodymium magnet – what it depends on?

Magnet lifting force in use – key factors

Safety rules for work with neodymium magnets

Handling guide

Maximum temperature

Fragile material

Electronic devices

Do not drill into magnets

Magnetic interference

ICD Warning

Finger safety

No play value

Allergic reactions

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs gap) - interaction chart
MW 25x12 / N38

Table 2: Shear load (vertical surface)
MW 25x12 / N38

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MW 25x12 / N38

Table 4: Steel thickness (saturation) - power losses
MW 25x12 / N38

Table 5: Thermal resistance (material behavior) - resistance threshold
MW 25x12 / N38

Table 6: Two magnets (repulsion) - field range
MW 25x12 / N38

Table 7: Safety (HSE) (implants) - warnings
MW 25x12 / N38

Table 8: Impact energy (kinetic energy) - warning
MW 25x12 / N38

Table 9: Coating parameters (durability)
MW 25x12 / N38

Table 10: Construction data (Flux)
MW 25x12 / N38

Table 11: Hydrostatics and buoyancy
MW 25x12 / N38