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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

product specifications »

154.21 ZŁ with VAT / pcs + price for transport

125.37 ZŁ net + 23% VAT / pcs

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Pick up the phone and ask +48 22 499 98 98 or let us know using request form the contact page.
Weight along with structure of a neodymium magnet can be calculated on our magnetic mass calculator.

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Technical specification of the product - 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

Physical analysis of the assembly - report

The following data are the result of a engineering calculation. Values were calculated on models for the material Nd₂Fe₁₄B. Actual conditions might slightly deviate from the simulation results. Please consider these data as a reference point for designers.

Table 1: Static pull force (pull vs gap) - 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	crushing
1 mm	4034 Gs 403.4 mT	86.37 kg / 190.41 lbs 86369.8 g / 847.3 N	crushing
2 mm	3894 Gs 389.4 mT	80.47 kg / 177.41 lbs 80469.7 g / 789.4 N	crushing
3 mm	3751 Gs 375.1 mT	74.67 kg / 164.62 lbs 74670.6 g / 732.5 N	crushing
5 mm	3461 Gs 346.1 mT	63.58 kg / 140.17 lbs 63580.6 g / 623.7 N	crushing
10 mm	2756 Gs 275.6 mT	40.32 kg / 88.89 lbs 40320.8 g / 395.5 N	crushing
15 mm	2140 Gs 214.0 mT	24.31 kg / 53.59 lbs 24308.3 g / 238.5 N	crushing
20 mm	1644 Gs 164.4 mT	14.34 kg / 31.61 lbs 14338.1 g / 140.7 N	crushing
30 mm	975 Gs 97.5 mT	5.05 kg / 11.12 lbs 5046.0 g / 49.5 N	warning
50 mm	388 Gs 38.8 mT	0.80 kg / 1.77 lbs 801.0 g / 7.9 N	weak grip

Magnetic force weakens sharply with every subsequent millimeter of gap. Note that every additional insulation layer (e.g., dirt, paint, veneer) noticeably diminishes the holding power. Neodymiums operate strongest at the point of direct contact; gap nullifies the power. Observe how rapidly the load capacity drop, when the magnet does not touch flatly to the steel surface. When designing the arrangement, discard additional spacers.

Table 2: Vertical force (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

The following data presents the theoretical weight limit needed to start the shifting of the magnet vertically along a upright steel wall (considering standard friction). The holding force is relative to the separation distance between the magnet and the metal.

Table 3: Vertical assembly (shearing) - 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 magnet on a vertical plane (e.g., a fridge), it you can count on just approx. 20%-30% of nominal attraction strength. Gravity as well as a weak degree of grip influence the fact that magnets slip easier than they pull off. Planning a vertical fastening? Consider that the shear force is much weaker than the perpendicular breakaway force. On a painted metal, the element will slide down under a noticeably lighter load. Using a rubber layer can effectively increase the grip.

Table 4: Steel thickness (saturation) - 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 unable to take in the entire magnetic field, which weakens actual performance of the magnet. If you mount a strong magnet to a thin surface, the flux will pass right through and the holding will be smaller. To squeeze the maximum of this neodymium's potential, you require a sufficiently solid element of metal. The material oversaturation means that on sheet metal structures (e.g., car bodies), the magnet holds weaker. We advise picking the steel thickness based on the following data.

Table 5: Thermal resistance (material behavior) - 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 irreversibly lose strength past the thermal threshold. Avoid high temperatures – excessive heat can permanently destroy this magnet. As the temperature rises, the neodymium's capacity momentarily lowers. Refrain from using this product near heat sources higher than its safe range. Ignoring the limit will cause permanent loss of magnetic properties.

*Engineering note: Thermal stability depends not only on the material grade, but also on the magnet's shape. Low-profile magnets (low permeance coefficient) risk losing magnetic properties at lower temperatures than taller cylinders. The danger warning in the table points to a risk of irreversible loss for this specific geometry.

Table 6: Two magnets (repulsion) - field collision
MW 55x25 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral 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 wider radius than a magnet and steel setup. The connection of magnet-to-magnet produces a massive flux and a further horizon of operation. Planning to create a strong closure? Apply two magnets instead of a neodymium and a striker plate. Be careful that when connecting a pair of magnets, the impact force is huge. The repulsion force is marginally weaker than the attraction, but still large.
*The magnetic induction between like poles reaches ~0 Gs at the midpoint between the magnets (resulting from vector opposition).
Note: Results demonstrate friction force of two matching neodymium magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Hazards (electronics) - precautionary measures
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
Mechanical watch	20 Gs (2.0 mT)	17.0 cm
Phone / Smartphone	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

Extremely neodym field poses a real danger to electronic devices and medical implants. These neodymiums produce a field that prevents correct functioning of sensitive medical devices. Notice: the unseen radiation penetrates the body and housings. Special caution must be taken by people with cochlear implants and drug dispensers. Also at risk are: automatic timepieces, car keys, membranes, and displays. Do not place the magnet near cards, hard drives, or sensitive navigation tools.

Table 8: Collisions (kinetic energy) - collision effects
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

NdFeB products are prone to chipping – a violent impact against metal risks their cracking. Watch the impact speed – a magnet released freely speeds with massive force. Striking energy can destroy the magnet or injury to fingers. Be sure to control the product during mounting so it doesn't slam with momentum against the metal. A contact at a velocity of dozens of km/h almost guarantees destruction of the magnet. Use safety goggles when playing with large magnets.

Table 9: Corrosion resistance
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)

Neodymium magnets are highly susceptible to corrosion without proper protection. Note the thickness of the protective layer.

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)

Flux value emitted by the magnet pole. Key data when building generators and motors. P_c value defines the magnet's operating point.

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%

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

In water, the magnet feels stronger thanks to Archimedes' principle. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Wall mount (shear)

*Note: On a vertical wall, the magnet retains only a fraction of its nominal pull.

2. Steel thickness impact

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

3. Thermal stability

*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) = 0.55

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.

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%

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

Kilograms (kg)

Newtons (N)

Force in lbs

Field Strength

Induction (T)

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The offered product is a very strong cylindrical magnet, composed of advanced NdFeB material, which, at dimensions of Ø55x25 mm, guarantees maximum efficiency. The MW 55x25 / N38 model boasts high dimensional repeatability and industrial build quality, making it an ideal solution for the most demanding engineers and designers. As a cylindrical magnet with significant force (approx. 92.25 kg), this product is available off-the-shelf from our warehouse in Poland, ensuring quick order fulfillment. Moreover, its triple-layer Ni-Cu-Ni coating effectively protects it against corrosion in typical operating conditions, ensuring an aesthetic appearance and durability for years.

It finds application 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 cylindrical magnet is indispensable in miniature devices and wherever every gram matters.

Since our magnets have a tolerance of ±0.1mm, the recommended way is to glue them into holes with a slightly larger diameter (e.g., 55.1 mm) using epoxy glues. To ensure stability in automation, anaerobic resins are used, which do not react with the nickel coating and fill the gap, guaranteeing high repeatability of the connection.

Grade N38 is the most frequently chosen standard for industrial neodymium magnets, offering an optimal price-to-power ratio and high resistance to demagnetization. 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 available off-the-shelf in our warehouse.

The presented product is a neodymium magnet with precisely defined parameters: diameter 55 mm and height 25 mm. The key parameter here is the holding force amounting to approximately 92.25 kg (force ~904.94 N), which, with such defined dimensions, proves the high power of the NdFeB material. The product has a [NiCuNi] coating, which secures it against external factors, giving it an aesthetic, silvery shine.

This rod magnet 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.

Pros as well as cons of Nd₂Fe₁₄B magnets.

Strengths

In addition to their pulling strength, neodymium magnets provide the following advantages:

They retain magnetic properties for around 10 years – the loss is just ~1% (according to analyses),
They maintain their magnetic properties even under close interference source,
A magnet with a metallic silver surface has an effective appearance,
They show high magnetic induction at the operating surface, which affects their effectiveness,
Thanks to resistance to high temperature, they can operate (depending on the form) even at temperatures up to 230°C and higher...
Possibility of detailed creating and optimizing to atypical applications,
Wide application in electronics industry – they are used in magnetic memories, brushless drives, precision medical tools, also multitasking production systems.
Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Disadvantages

Disadvantages of neodymium magnets:

At very strong impacts they can break, therefore we recommend placing them in steel cases. A metal housing provides additional protection against damage and increases the magnet's durability.
Neodymium magnets lose their strength under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
When exposed to humidity, magnets usually rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which prevent oxidation and corrosion.
Limited ability of making nuts in the magnet and complicated forms - recommended is casing - magnet mounting.
Health risk resulting from small fragments of magnets can be dangerous, when accidentally swallowed, which becomes key in the aspect of protecting the youngest. It is also worth noting that small elements of these devices are able to disrupt the diagnostic process medical in case of swallowing.
Due to neodymium price, their price is higher than average,

Pull force analysis

Maximum lifting force for a neodymium magnet – what contributes to it?

Information about lifting capacity is the result of a measurement for ideal contact conditions, taking into account:

with the use of a sheet made of low-carbon steel, ensuring full magnetic saturation
possessing a thickness of minimum 10 mm to avoid saturation
with a surface free of scratches
under conditions of no distance (metal-to-metal)
during pulling in a direction perpendicular to the plane
at temperature room level

Practical aspects of lifting capacity – factors

Effective lifting capacity impacted by working environment parameters, mainly (from priority):

Distance (betwixt the magnet and the plate), because even a microscopic 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).
Pull-off angle – remember that the magnet has greatest strength perpendicularly. Under shear forces, the capacity drops significantly, often to levels of 20-30% of the maximum value.
Element thickness – for full efficiency, the steel must be sufficiently thick. Thin sheet restricts the attraction force (the magnet "punches through" it).
Steel grade – the best choice is high-permeability steel. Cast iron may generate lower lifting capacity.
Plate texture – smooth surfaces ensure maximum contact, which improves field saturation. Rough surfaces weaken the grip.
Temperature – heating the magnet results in weakening of induction. It is worth remembering the maximum operating temperature for a given model.

Lifting capacity testing was carried out on a smooth plate of optimal thickness, under perpendicular forces, however under attempts to slide the magnet the lifting capacity is smaller. Additionally, even a slight gap between the magnet and the plate reduces the lifting capacity.

Precautions when working with neodymium magnets

GPS and phone interference

Remember: neodymium magnets generate a field that interferes with sensitive sensors. Maintain a separation from your phone, tablet, and navigation systems.

Safe distance

Do not bring magnets close to a purse, computer, or TV. The magnetic field can permanently damage these devices and wipe information from cards.

Keep away from children

Adult use only. Tiny parts pose a choking risk, causing intestinal necrosis. Store out of reach of kids and pets.

Nickel allergy

Certain individuals suffer from a contact allergy to Ni, which is the typical protective layer for NdFeB magnets. Prolonged contact might lead to dermatitis. We strongly advise wear safety gloves.

Risk of cracking

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

Hand protection

Risk of injury: The pulling power is so great that it can result in hematomas, pinching, and even bone fractures. Protective gloves are recommended.

Conscious usage

Before use, check safety instructions. Uncontrolled attraction can destroy the magnet or injure your hand. Think ahead.

Pacemakers

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

Power loss in heat

Avoid heat. Neodymium magnets are sensitive to temperature. If you require operation above 80°C, inquire about HT versions (H, SH, UH).

Mechanical processing

Dust created during cutting of magnets is combustible. Avoid drilling into magnets unless you are an expert.

Important! Details about hazards in the article: Magnet Safety Guide.

MW 55x25 / N38 - cylindrical magnet

Technical specification of the product - MW 55x25 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical analysis of the assembly - report

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

Table 2: Vertical force (vertical surface) MW 55x25 / N38

Table 3: Vertical assembly (shearing) - vertical pull MW 55x25 / N38

Table 4: Steel thickness (saturation) - power losses MW 55x25 / N38

Table 5: Thermal resistance (material behavior) - thermal limit MW 55x25 / N38

Table 6: Two magnets (repulsion) - field collision MW 55x25 / N38

Table 7: Hazards (electronics) - precautionary measures MW 55x25 / N38

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

Table 9: Corrosion resistance MW 55x25 / N38

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

Table 11: Hydrostatics and buoyancy MW 55x25 / N38

1. Wall mount (shear)

2. Steel thickness impact

3. Thermal stability

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

Chemical composition

Ecology and recycling (GPSR)

Pulling force

Field Strength

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Pros as well as cons of Nd2Fe14B magnets.

Strengths

Disadvantages

Pull force analysis

Maximum lifting force for a neodymium magnet – what contributes to it?

Practical aspects of lifting capacity – factors

Precautions when working with neodymium magnets

GPS and phone interference

Safe distance

Keep away from children

Nickel allergy

Risk of cracking

Hand protection

Conscious usage

Pacemakers

Power loss in heat

Mechanical processing

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

Table 2: Vertical force (vertical surface)
MW 55x25 / N38

Table 3: Vertical assembly (shearing) - vertical pull
MW 55x25 / N38

Table 4: Steel thickness (saturation) - power losses
MW 55x25 / N38

Table 5: Thermal resistance (material behavior) - thermal limit
MW 55x25 / N38

Table 6: Two magnets (repulsion) - field collision
MW 55x25 / N38

Table 7: Hazards (electronics) - precautionary measures
MW 55x25 / N38

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

Table 9: Corrosion resistance
MW 55x25 / N38

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

Table 11: Hydrostatics and buoyancy
MW 55x25 / N38

Pros as well as cons of Nd₂Fe₁₄B magnets.