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MW 55x25 / N38 - cylindrical magnet

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

cylindrical magnet

Catalog no 010081

GTIN/EAN: 5906301810803

5.00

Diameter Ø

55 mm [±0,1 mm]

Height

25 mm [±0,1 mm]

Weight

445.47 g

Magnetization Direction

↑ axial

Load capacity

92.25 kg / 904.94 N

Magnetic Induction

416.97 mT / 4170 Gs

Coating

[NiCuNi] Nickel

check properties »

154.21 ZŁ with VAT / pcs + price for transport

125.37 ZŁ net + 23% VAT / pcs

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Technical data - MW 55x25 / N38 - cylindrical magnet

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

properties

properties	values
Cat. no.	010081
GTIN/EAN	5906301810803
Production/Distribution	Dhit sp. z o.o. ul. Zielona 14 05-850 Ożarów Mazowiecki PL
Country of origin	Poland / China / Germany
Customs code	85059029
Diameter Ø	55 mm [±0,1 mm]
Height	25 mm [±0,1 mm]
Weight	445.47 g
Magnetization Direction	↑ axial
Load capacity ~ ?	92.25 kg / 904.94 N
Magnetic Induction ~ ?	416.97 mT / 4170 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 55x25 / N38 - cylindrical magnet

properties	values	units
remenance Br [min. - max.] ?	12.2-12.6	kGs
remenance Br [min. - max.] ?	1220-1260	mT
coercivity bHc ?	10.8-11.5	kOe
coercivity bHc ?	860-915	kA/m
actual internal force iHc	≥ 12	kOe
actual internal force iHc	≥ 955	kA/m
energy density [min. - max.] ?	36-38	BH max MGOe
energy density [min. - max.] ?	287-303	BH max KJ/m
max. temperature ?	≤ 80	°C

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

properties	values	units
Vickers hardness	≥550	Hv
Density	≥7.4	g/cm³
Curie Temperature TC	312 - 380	°C
Curie Temperature TF	593 - 716	°F
Specific resistance	150	μΩ⋅cm
Bending strength	250	MPa
Compressive strength	1000~1100	MPa
Thermal expansion parallel (∥) to orientation (M)	(3-4) x 10^-6	°C^-1
Thermal expansion perpendicular (⊥) to orientation (M)	-(1-3) x 10^-6	°C^-1
Young's modulus	1.7 x 10⁴	kg/mm²

Technical modeling of the assembly - report

The following data are the direct effect of a mathematical analysis. Values are based on algorithms for the material Nd₂Fe₁₄B. Real-world performance might slightly differ. Please consider these calculations as a preliminary roadmap for designers.

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

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

Grip strength drops significantly with every mm of distance. Keep in mind that even the smallest gap (e.g., contamination, paint, rust) significantly diminishes the holding power. Magnetic products hold optimally at the point of direct contact; air break drastically cuts the power. Notice how quickly the parameters drop, when the product does not touch directly to the metal substrate. When calculating the assembly, eliminate additional spacers.

Table 2: Sliding capacity (vertical surface)
MW 55x25 / N38

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

This section shows the theoretical shear load required to cause the slippage of the magnet down on a vertical metal surface (considering standard friction coefficient). The holding force varies with the separation distance between the magnet and the metal.

Table 3: Wall mounting (sliding) - vertical pull
MW 55x25 / N38

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

When hanging a element on a upright wall (e.g., a fridge), it will maintain only approx. 1/5 of nominal attraction strength. Gravity and a weak degree of grip mean that holders slide down easier than they pop off the substrate. Planning a vertical fastening? Note that the sliding force is much weaker than the maximum static pull force. On a painted metal, the holder will give way down under a noticeably lighter load. Using a rubber coating can drastically increase the grip.

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

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

A too thin steel is incapable of take in the full magnetic flux, which wastes potential of the holder. Should you mount a strong magnet to a too thin substrate, the magnetism will penetrate right through and the pull force will drop sharply. To squeeze full efficiency of this neodymium's potential, you need a suitably thick piece of steel. The material oversaturation means that on delicate walls (e.g., appliance housings), the product works worse. We recommend selecting the steel dimension based on the following data.

Table 5: Thermal stability (stability) - thermal limit
MW 55x25 / N38

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

Standard neodymium magnets change their properties power past the thermal threshold. Watch out for overheating – high temperature can irreversibly demagnetize this product. With every degree above norm, the neodymium's power momentarily lowers. Do not use this magnet close to heaters higher than its safe range. Exceeding the critical threshold will lead to irreversible degradation of magnetic properties.

*Important note: Temperature resistance is determined by both grade, and the Permeance Coefficient Pc. Flat magnets (pancake types) may lose charge permanently sooner than long magnets. The danger warning in the table indicates a risk of irreversible loss for this specific geometry.

Table 6: Two magnets (repulsion) - forces in the system
MW 55x25 / N38

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

Two magnets interact from a significantly greater distance than a magnet and sheet setup. The setup of two magnets generates a stronger field and a larger range of action. Designing a strong closure? Use a pair of magnets instead of a neodymium and a steel. Remember that when bringing together two magnets, the pinch force is extreme. The repulsion force is slightly lower than the connection force, but still significant.
*Flux density between like poles drops to ~0 Gs at the midpoint of the gap (resulting from vector opposition).
Note: Figures apply to sliding force of a pair of identical magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Hazards (implants) - warnings
MW 55x25 / N38

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

Extremely neodym field is a large risk to IT equipment and medical implants. These magnets produce a field that disrupts operation of sensitive medical devices. Remember: the invisible magnetic field acts through matter and plastic. Exceptional care must be taken by people with hearing aids and insulin pumps. Influence will be felt by: automatic timepieces, remotes, membranes, and displays. Do not bring the product near payment cards, hard drives, or precise measuring instruments.

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

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

Neodymium magnets are delicate – a strong collision with metal can result in shattering. Control the attraction moment – a magnet released freely turns into a projectile. Impact energy can destroy the magnet or dangerous crushing to fingers. Be sure to control the product during mounting so it doesn't hit violently against the metal. A contact at a velocity of dozens of km/h ends with a crack of the magnet. Use safety goggles when playing with large magnets.

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

Technical parameter	Value / Description
Coating type	[NiCuNi] Nickel
Layer structure	Nickel - Copper - Nickel
Layer thickness	10-20 µm
Salt spray test (SST) ?	24 h
Recommended environment	Indoors only (dry)

The following table defines the conditions under which this product can be safely used. Improper coating selection is the most common cause of magnet failure over time.

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

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

Total magnetic flux passing through the magnet pole. Essential parameter when building generators as well as sensors. The P_c coefficient determines the magnet's operating point.

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

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

Rust risk: 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. However, remember the water resistance when pulling the rope quickly.

1. Shear force

*Note: On a vertical surface, the magnet holds merely ~20% of its max power.

2. Steel thickness impact

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

3. Power loss vs temp

*For N38 material, the max working temp is 80°C.

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.55

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.

Engineering data and GPSR

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: 010081-2026

Measurement Calculator

Pulling force

Force in kg

Newtons (N)

lbs

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Induction (Gs)

Input your value in a single field to see the conversion for the other units right away.

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The offered product is a very strong rod magnet, composed of modern NdFeB material, which, at dimensions of Ø55x25 mm, guarantees the highest energy density. This specific item is characterized by a tolerance of ±0.1mm and professional build quality, making it a perfect solution for professional engineers and designers. As a magnetic rod with significant force (approx. 92.25 kg), this product is available off-the-shelf from our European logistics center, ensuring rapid order fulfillment. Additionally, its triple-layer Ni-Cu-Ni coating secures it against corrosion in standard operating conditions, guaranteeing an aesthetic appearance and durability for years.

It finds application in modeling, advanced automation, and broadly understood industry, serving as a fastening or actuating element. Thanks to the pull force of 904.94 N with a weight of only 445.47 g, this cylindrical magnet is indispensable in miniature devices and wherever every gram matters.

Due to the brittleness of the NdFeB material, you must not use force-fitting (so-called press-fit), as this risks immediate cracking of this professional component. To ensure long-term durability in automation, anaerobic resins are used, which are safe for nickel and fill the gap, guaranteeing durability of the connection.

Grade N38 is the most frequently chosen standard for industrial neodymium magnets, offering a great economic balance and operational stability. If you need the strongest magnets in the same volume (Ø55x25), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our store.

This model is characterized by dimensions Ø55x25 mm, which, at a weight of 445.47 g, makes it an element with high magnetic energy density. The value of 904.94 N means that the magnet is capable of holding a weight many times exceeding its own mass of 445.47 g. The product has a [NiCuNi] coating, which protects the surface against oxidation, giving it an aesthetic, silvery shine.

This cylinder is magnetized axially (along the height of 25 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 through the diameter if your project requires it.

Advantages as well as disadvantages of neodymium magnets.

Pros

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

They do not lose strength, even after around 10 years – the decrease in power is only ~1% (theoretically),
They are noted for resistance to demagnetization induced by presence of other magnetic fields,
A magnet with a metallic nickel surface looks better,
The surface of neodymium magnets generates a powerful magnetic field – this is a key feature,
Through (appropriate) combination of ingredients, they can achieve high thermal strength, allowing for operation at temperatures approaching 230°C and above...
Thanks to the possibility of precise forming and customization to unique projects, NdFeB magnets can be produced in a variety of geometric configurations, which amplifies use scope,
Significant place in electronics industry – they serve a role in computer drives, electromotive mechanisms, advanced medical instruments, also multitasking production systems.
Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Weaknesses

Disadvantages of NdFeB magnets:

To avoid cracks upon strong impacts, we suggest using special steel housings. Such a solution secures the magnet and simultaneously improves its durability.
When exposed to high temperature, neodymium magnets suffer a drop in power. 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
They rust in a humid environment. For use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
We suggest a housing - magnetic holder, due to difficulties in creating nuts inside the magnet and complex forms.
Potential hazard resulting from small fragments of magnets can be dangerous, if swallowed, which becomes key in the context of child health protection. Furthermore, small elements of these devices are able to be problematic in diagnostics medical after entering the body.
Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Lifting parameters

Maximum magnetic pulling force – what affects it?

The lifting capacity listed is a theoretical maximum value conducted under the following configuration:

on a base made of structural steel, optimally conducting the magnetic field
with a cross-section minimum 10 mm
with a plane perfectly flat
without the slightest clearance between the magnet and steel
during detachment in a direction vertical to the mounting surface
in temp. approx. 20°C

Determinants of practical lifting force of a magnet

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

Gap (betwixt the magnet and the plate), since even a very small clearance (e.g. 0.5 mm) results in a drastic drop in force by up to 50% (this also applies to varnish, corrosion or dirt).
Loading method – catalog parameter refers to detachment vertically. When attempting to slide, the magnet exhibits much less (typically approx. 20-30% of nominal force).
Metal thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field penetrates through instead of converting into lifting capacity.
Metal type – different alloys reacts the same. Alloy additives worsen the interaction with the magnet.
Surface finish – ideal contact is possible only on smooth steel. Any scratches and bumps reduce the real contact area, reducing force.
Thermal factor – hot environment weakens pulling force. Too high temperature can permanently damage the magnet.

Holding force was tested on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, whereas under parallel forces the lifting capacity is smaller. In addition, even a slight gap between the magnet’s surface and the plate reduces the load capacity.

Warnings

Magnet fragility

NdFeB magnets are sintered ceramics, which means they are fragile like glass. Clashing of two magnets leads to them shattering into shards.

Choking Hazard

Product intended for adults. Tiny parts pose a choking risk, causing intestinal necrosis. Keep out of reach of kids and pets.

Magnetic interference

Be aware: rare earth magnets produce a field that confuses precision electronics. Maintain a separation from your mobile, device, and GPS.

Serious injuries

Pinching hazard: The pulling power is so immense that it can result in blood blisters, pinching, and broken bones. Protective gloves are recommended.

Nickel allergy

Certain individuals have a hypersensitivity to Ni, which is the common plating for neodymium magnets. Extended handling may cause dermatitis. We suggest use protective gloves.

Do not drill into magnets

Powder created during cutting of magnets is flammable. Avoid drilling into magnets unless you are an expert.

Threat to electronics

Avoid bringing magnets near a wallet, laptop, or TV. The magnetism can permanently damage these devices and wipe information from cards.

Safe operation

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

Life threat

Health Alert: Neodymium magnets can turn off pacemakers and defibrillators. Stay away if you have electronic implants.

Power loss in heat

Regular neodymium magnets (grade N) lose magnetization when the temperature exceeds 80°C. Damage is permanent.

Caution! Need more info? Read our article: Why are neodymium magnets dangerous?

MW 55x25 / N38 - cylindrical magnet

Technical data - MW 55x25 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical modeling of the assembly - report

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

Table 2: Sliding capacity (vertical surface) MW 55x25 / N38

Table 3: Wall mounting (sliding) - vertical pull MW 55x25 / N38

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

Table 5: Thermal stability (stability) - thermal limit MW 55x25 / N38

Table 6: Two magnets (repulsion) - forces in the system MW 55x25 / N38

Table 7: Hazards (implants) - warnings MW 55x25 / N38

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

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

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

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

1. Shear force

2. Steel thickness impact

3. Power loss vs temp

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

Chemical composition

Ecology and recycling (GPSR)

Pulling force

Magnetic Induction

See also offers

MPL 3x3x1 / N38 - lamellar magnet

SM 18x175 [2xM5] / N42 - magnetic separator

MPL 60x10x5 / N38 - lamellar magnet

MPL 50x20x20 / N38 - lamellar magnet

Advantages as well as disadvantages of neodymium magnets.

Pros

Weaknesses

Lifting parameters

Maximum magnetic pulling force – what affects it?

Determinants of practical lifting force of a magnet

Warnings

Magnet fragility

Choking Hazard

Magnetic interference

Serious injuries

Nickel allergy

Do not drill into magnets

Threat to electronics

Safe operation

Life threat

Power loss in heat

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

Table 2: Sliding capacity (vertical surface)
MW 55x25 / N38

Table 3: Wall mounting (sliding) - vertical pull
MW 55x25 / N38

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

Table 5: Thermal stability (stability) - thermal limit
MW 55x25 / N38

Table 6: Two magnets (repulsion) - forces in the system
MW 55x25 / N38

Table 7: Hazards (implants) - warnings
MW 55x25 / N38

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

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

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

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