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MW 55x25 / 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

cylindrical magnet

Catalog no 010081

GTIN/EAN: 5906301810803

5.00

Load capacity 92.25 kg / 904.94 N Magnetic Induction 416.97 mT / 4170 Gs

Diameter Ø: 55 mm [±0,1 mm]
Height: 25 mm [±0,1 mm]
Weight: 445.47 g
Magnetization Direction: ↑ axial
Coating: [NiCuNi] Nickel

see technical specifications »

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Engineering report for this magnet

Full PDF analysis: pull and shear force, effect of distance, temperature and plate thickness, safety distances and the demagnetization curve.

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Detailed specification - 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

Engineering modeling of the assembly - report

Presented information are the result of a physical simulation. Values are based on models for the class Nd₂Fe₁₄B. Actual parameters may differ. Treat these calculations as a reference point when designing systems.

Table 1: Static force (pull vs distance) - characteristics
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	dangerous!
1 mm	4034 Gs 403.4 mT	86.37 kg / 190.41 lbs 86369.8 g / 847.3 N	dangerous!
2 mm	3894 Gs 389.4 mT	80.47 kg / 177.41 lbs 80469.7 g / 789.4 N	dangerous!
3 mm	3751 Gs 375.1 mT	74.67 kg / 164.62 lbs 74670.6 g / 732.5 N	dangerous!
5 mm	3461 Gs 346.1 mT	63.58 kg / 140.17 lbs 63580.6 g / 623.7 N	dangerous!
10 mm	2756 Gs 275.6 mT	40.32 kg / 88.89 lbs 40320.8 g / 395.5 N	dangerous!
15 mm	2140 Gs 214.0 mT	24.31 kg / 53.59 lbs 24308.3 g / 238.5 N	dangerous!
20 mm	1644 Gs 164.4 mT	14.34 kg / 31.61 lbs 14338.1 g / 140.7 N	dangerous!
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	safe

Pulling power drops significantly with every mm of spacing. Keep in mind that even the smallest gap (e.g., contamination, paint, rust) strongly diminishes the holding power. Magnets operate strongest during direct contact; distance nullifies the force. Observe how rapidly the parameters drop, when the product does not touch flatly to the steel surface. When calculating the mounting, eliminate unnecessary gaps.

Table 2: Vertical hold (wall)
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

The table below calculates the theoretical holding capacity sufficient to cause the sliding of the magnet down against a vertical metal surface (assuming typical friction). This parameter is a function of the air gap between the magnet and the metal.

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
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 mounting a magnet on a upright wall (e.g., a board), it will only hold only about 20%-30% of its maximum pull force. Gravity as well as a low friction coefficient influence the fact that magnets slip faster than they pull off. Planning a vertical fastening? Consider that the shear force is significantly lower than the maximum static pull force. On a painted metal, the element will slip down under a much lighter cargo. Application of an anti-slip pad can drastically raise the stability.

Table 4: Steel thickness (substrate influence) - sheet metal selection
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 not enough to absorb the entire magnetic field, which wastes potential of the magnet. If you install a neodymium to a weak sheet, the field will penetrate right through and the attraction force will be weaker. To utilize full efficiency of this neodymium's potential, you require a sufficiently solid element of steel. The saturation phenomenon causes that on thin elements (e.g., car bodies), the holder works worse. We recommend selecting the steel cross-section from these parameters.

Table 5: Thermal stability (material behavior) - resistance threshold
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 lose parameters after exceeding the maximum temperature. Protect against heat – excessive heat can irreversibly destroy this magnet. With every degree above norm, the neodymium's capacity momentarily lowers. Refrain from using this magnet in hot environments higher than its working range. Exceeding the critical threshold will lead to permanent loss of magnetism.

*Technical advisory: Temperature resistance depends not only on the material grade, as well as the dimension ratios. Low-profile magnets (low permeance coefficient) are more susceptible to demagnetization sooner compared to rod magnets. Red status in the table signals a risk of irreversible loss for this particular item.

Table 6: Two magnets (attraction) - field range
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 magnetic products attract each other from a significantly greater distance than a neodymium and metal combination. The connection of two magnets generates a stronger field and a larger range of operation. Designing a solid fastener? Use a pair of magnets instead of one magnet and a steel. Be careful that when connecting a pair of magnets, the pinch force is massive. The levitation is a bit weaker than the connection force, but still impressive.
*Flux density for N-N configuration is approximately ~0 Gs in the exact middle between the magnets (caused by magnetic field nullification).
Note: Figures refer to friction force of dual same neodymium magnets (friction ~0.15 for Ni-Ni coating).

Table 7: Safety (HSE) (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
Mobile device	40 Gs (4.0 mT)	13.0 cm
Car key	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

A strong magnetic field is a real danger to IT equipment and medical implants. These magnets generate a flux that destroys function of sensitive medical devices. Be aware: the unseen radiation passes through tissues and glass. Special caution must be exercised by people with cochlear implants and insulin pumps. Also at risk are: automatic timepieces, remotes, speakers, and displays. Avoid contact with magnetic cards, HDD media, or precise measuring instruments.

Table 8: Collisions (kinetic energy) - collision effects
MW 55x25 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	19.19 km/h (5.33 m/s)	6.33 J
30 mm	23.74 km/h (6.59 m/s)	9.68 J
50 mm	24.27 km/h (6.74 m/s)	10.12 J
100 mm	24.39 km/h (6.78 m/s)	10.23 J

Magnetic elements are prone to chipping – a violent impact against metal causes immediate chipping. Pay attention to connection velocity – a magnet released freely speeds with massive force. Striking energy can destroy the magnet or dangerous crushing to fingers. Always hold the magnet during installation so it doesn't hit with great force against the steel surface. A collision at high speed means shattering of the magnet. Use safety goggles when working with powerful specimens.

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)

For outdoor applications, an epoxy coating is required; standard nickel is intended for indoor use. Note the thickness of the protective layer.

Table 10: Electrical data (P_c)
MW 55x25 / N38

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

Flux value emitted by the pole surface. Essential parameter when building generators and motors. P_c value determines the working geometry.

Table 11: Hydrostatics and buoyancy
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%

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

Contrary to myths, water does not block the magnetic field. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Sliding resistance

*Note: On a vertical wall, the magnet holds merely ~20% of its nominal pull.

2. Efficiency vs thickness

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

3. Temperature resistance

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

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

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

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.

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%

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: 010081-2026

Measurement Calculator

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Pounds (lbs)

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Gauss (Gs)

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

It successfully proves itself in modeling, advanced robotics, and broadly understood industry, serving as a positioning or actuating element. Thanks to the pull force of 904.94 N with a weight of only 445.47 g, this rod is indispensable in electronics and wherever low weight is crucial.

Due to the brittleness of the NdFeB material, we absolutely advise against force-fitting (so-called press-fit), as this risks immediate cracking of this precision component. To ensure long-term durability in industry, specialized industrial adhesives are used, which are safe for nickel and fill the gap, guaranteeing durability of the connection.

Magnets NdFeB grade N38 are strong enough for the majority of applications in automation and machine building, where excessive miniaturization with maximum force is not required. 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 warehouse.

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 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 55 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 Nd₂Fe₁₄B magnets.

Strengths

Besides their magnetic performance, neodymium magnets are valued for these benefits:

They retain magnetic properties for around ten years – the loss is just ~1% (according to analyses),
Neodymium magnets are characterized by highly resistant to magnetic field loss caused by external field sources,
In other words, due to the glossy layer of nickel, the element becomes visually attractive,
Magnetic induction on the working part of the magnet is impressive,
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 ability to customize to unusual requirements,
Huge importance in innovative solutions – they serve a role in magnetic memories, electromotive mechanisms, diagnostic systems, as well as multitasking production systems.
Compactness – despite small sizes they generate large force, making them ideal for precision applications

Cons

Disadvantages of NdFeB magnets:

Susceptibility to cracking is one of their disadvantages. Upon intense impact they can break. We recommend keeping them in a steel housing, which not only protects them against impacts but also raises their durability
We warn that neodymium magnets can lose their strength at high temperatures. To prevent this, we recommend our specialized [AH] magnets, which work effectively even at 230°C.
They rust in a humid environment - during use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
Due to limitations in creating threads and complex shapes in magnets, we propose using a housing - magnetic holder.
Health risk related to microscopic parts of magnets pose a threat, when accidentally swallowed, which is particularly important in the context of child safety. Additionally, small components of these magnets can be problematic in diagnostics 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

Holding force characteristics

Highest magnetic holding force – what it depends on?

The declared magnet strength concerns the peak performance, obtained under ideal test conditions, specifically:

using a plate made of mild steel, functioning as a ideal flux conductor
whose transverse dimension equals approx. 10 mm
with a surface perfectly flat
with total lack of distance (without coatings)
during pulling in a direction vertical to the mounting surface
at temperature approx. 20 degrees Celsius

Determinants of lifting force in real conditions

During everyday use, the actual lifting capacity depends on a number of factors, presented from the most important:

Clearance – existence of foreign body (paint, tape, gap) interrupts the magnetic circuit, which reduces capacity rapidly (even by 50% at 0.5 mm).
Load vector – maximum parameter is available only during perpendicular pulling. The force required to slide of the magnet along the plate is standardly many times smaller (approx. 1/5 of the lifting capacity).
Substrate thickness – for full efficiency, the steel must be adequately massive. Paper-thin metal restricts the lifting capacity (the magnet "punches through" it).
Steel grade – ideal substrate is pure iron steel. Hardened steels may generate lower lifting capacity.
Surface structure – the smoother and more polished the surface, the larger the contact zone and higher the lifting capacity. Roughness creates an air distance.
Thermal conditions – NdFeB sinters have a negative temperature coefficient. At higher temperatures they lose power, and at low temperatures they can be stronger (up to a certain limit).

Lifting capacity testing was carried out on plates with a smooth surface of suitable thickness, under perpendicular forces, in contrast under attempts to slide the magnet the load capacity is reduced by as much as fivefold. Additionally, even a slight gap between the magnet’s surface and the plate decreases the load capacity.

Precautions when working with neodymium magnets

Protective goggles

Beware of splinters. Magnets can fracture upon violent connection, ejecting sharp fragments into the air. We recommend safety glasses.

Pinching danger

Protect your hands. Two large magnets will snap together immediately with a force of massive weight, crushing anything in their path. Be careful!

Danger to pacemakers

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

Do not overheat magnets

Avoid heat. Neodymium magnets are sensitive to heat. If you need resistance above 80°C, look for special high-temperature series (H, SH, UH).

Caution required

Use magnets with awareness. Their huge power can shock even professionals. Plan your moves and respect their power.

Do not drill into magnets

Machining of NdFeB material poses a fire risk. Magnetic powder oxidizes rapidly with oxygen and is hard to extinguish.

Do not give to children

NdFeB magnets are not toys. Accidental ingestion of multiple magnets can lead to them connecting inside the digestive tract, which poses a critical condition and necessitates urgent medical intervention.

Compass and GPS

Remember: rare earth magnets generate a field that disrupts precision electronics. Maintain a safe distance from your mobile, device, and GPS.

Data carriers

Do not bring magnets near a purse, laptop, or screen. The magnetism can destroy these devices and wipe information from cards.

Nickel coating and allergies

Warning for allergy sufferers: The nickel-copper-nickel coating consists of nickel. If skin irritation happens, cease handling magnets and wear gloves.

Attention! Want to know more? Check our post: Are neodymium magnets dangerous?

MW 55x25 / N38 - cylindrical magnet

Detailed specification - MW 55x25 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering modeling of the assembly - report

Table 1: Static force (pull vs distance) - characteristics MW 55x25 / N38

Table 2: Vertical hold (wall) MW 55x25 / N38

Table 3: Wall mounting (sliding) - behavior on slippery surfaces MW 55x25 / N38

Table 4: Steel thickness (substrate influence) - sheet metal selection MW 55x25 / N38

Table 5: Thermal stability (material behavior) - resistance threshold MW 55x25 / N38

Table 6: Two magnets (attraction) - field range MW 55x25 / N38

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

Table 8: Collisions (kinetic energy) - collision effects MW 55x25 / N38

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

Table 10: Electrical data (Pc) MW 55x25 / N38

Table 11: Hydrostatics and buoyancy MW 55x25 / N38

1. Sliding resistance

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 Nd2Fe14B magnets.

Strengths

Cons

Holding force characteristics

Highest magnetic holding force – what it depends on?

Determinants of lifting force in real conditions

Precautions when working with neodymium magnets

Protective goggles

Pinching danger

Danger to pacemakers

Do not overheat magnets

Caution required

Do not drill into magnets

Do not give to children

Compass and GPS

Data carriers

Nickel coating and allergies

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (pull vs distance) - characteristics
MW 55x25 / N38

Table 2: Vertical hold (wall)
MW 55x25 / N38

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MW 55x25 / N38

Table 4: Steel thickness (substrate influence) - sheet metal selection
MW 55x25 / N38

Table 5: Thermal stability (material behavior) - resistance threshold
MW 55x25 / N38

Table 6: Two magnets (attraction) - field range
MW 55x25 / N38

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

Table 8: Collisions (kinetic energy) - collision effects
MW 55x25 / N38

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

Table 10: Electrical data (P_c)
MW 55x25 / N38

Table 11: Hydrostatics and buoyancy
MW 55x25 / N38

Pros and cons of Nd₂Fe₁₄B magnets.