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MW 21.9x10 / 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 010045

GTIN/EAN: 5906301810445

Diameter Ø

21.9 mm [±0,1 mm]

Height

10 mm [±0,1 mm]

Weight

28.25 g

Magnetization Direction

→ diametrical

Load capacity

14.65 kg / 143.71 N

Magnetic Induction

417.89 mT / 4179 Gs

Coating

[NiCuNi] Nickel

check parameters »

15.50 ZŁ with VAT / pcs + price for transport

12.60 ZŁ net + 23% VAT / pcs

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Technical specification of the product - MW 21.9x10 / N38 - cylindrical magnet

Specification / characteristics - MW 21.9x10 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010045
GTIN/EAN	5906301810445
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	21.9 mm [±0,1 mm]
Height	10 mm [±0,1 mm]
Weight	28.25 g
Magnetization Direction	→ diametrical
Load capacity ~ ?	14.65 kg / 143.71 N
Magnetic Induction ~ ?	417.89 mT / 4179 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 21.9x10 / 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 magnet - data

The following values constitute the direct effect of a mathematical calculation. Values rely on models for the material Nd₂Fe₁₄B. Real-world performance might slightly differ from theoretical values. Use these calculations as a reference point when designing systems.

Table 1: Static force (pull vs gap) - characteristics
MW 21.9x10 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	4178 Gs 417.8 mT	14.65 kg / 32.30 lbs 14650.0 g / 143.7 N	crushing
1 mm	3830 Gs 383.0 mT	12.31 kg / 27.15 lbs 12314.7 g / 120.8 N	crushing
2 mm	3466 Gs 346.6 mT	10.08 kg / 22.23 lbs 10083.5 g / 98.9 N	crushing
3 mm	3104 Gs 310.4 mT	8.09 kg / 17.83 lbs 8086.3 g / 79.3 N	medium risk
5 mm	2432 Gs 243.2 mT	4.97 kg / 10.95 lbs 4966.5 g / 48.7 N	medium risk
10 mm	1257 Gs 125.7 mT	1.33 kg / 2.93 lbs 1327.0 g / 13.0 N	low risk
15 mm	671 Gs 67.1 mT	0.38 kg / 0.83 lbs 378.5 g / 3.7 N	low risk
20 mm	386 Gs 38.6 mT	0.13 kg / 0.28 lbs 125.0 g / 1.2 N	low risk
30 mm	156 Gs 15.6 mT	0.02 kg / 0.04 lbs 20.4 g / 0.2 N	low risk
50 mm	43 Gs 4.3 mT	0.00 kg / 0.00 lbs 1.5 g / 0.0 N	low risk

Pulling power decreases significantly with every subsequent millimeter of gap. Note that even a very thin break (e.g., contamination, paint, veneer) strongly diminishes the holding power. Magnetic products operate strongest in perfect adhesion; air break weakens the power. See how flashily the pull force fall, when the magnet does not adhere directly to the steel surface. When designing the arrangement, avoid redundant distances.

Table 2: Shear load (wall)
MW 21.9x10 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	2.93 kg / 6.46 lbs 2930.0 g / 28.7 N
1 mm	Stal (~0.2)	2.46 kg / 5.43 lbs 2462.0 g / 24.2 N
2 mm	Stal (~0.2)	2.02 kg / 4.44 lbs 2016.0 g / 19.8 N
3 mm	Stal (~0.2)	1.62 kg / 3.57 lbs 1618.0 g / 15.9 N
5 mm	Stal (~0.2)	0.99 kg / 2.19 lbs 994.0 g / 9.8 N
10 mm	Stal (~0.2)	0.27 kg / 0.59 lbs 266.0 g / 2.6 N
15 mm	Stal (~0.2)	0.08 kg / 0.17 lbs 76.0 g / 0.7 N
20 mm	Stal (~0.2)	0.03 kg / 0.06 lbs 26.0 g / 0.3 N
30 mm	Stal (~0.2)	0.00 kg / 0.01 lbs 4.0 g / 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N

The following data presents the theoretical holding capacity needed to initiate the shifting of the magnet vertically against a vertical metal surface (considering standard friction coefficient). This value is relative to the air gap between the magnet and the surface.

Table 3: Vertical assembly (shearing) - vertical pull
MW 21.9x10 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	4.40 kg / 9.69 lbs 4395.0 g / 43.1 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	2.93 kg / 6.46 lbs 2930.0 g / 28.7 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	1.47 kg / 3.23 lbs 1465.0 g / 14.4 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	7.33 kg / 16.15 lbs 7325.0 g / 71.9 N

When hanging a element on a upright plane (e.g., a car body), it you can count on just about 20%-30% of its maximum pull force. Gravitational force and a weak degree of grip mean that magnets slide down easier than they pull off. Planning a wall mount? Consider that the shear force is much weaker than the maximum static pull force. On a painted metal, the magnet will slip down under a significantly smaller cargo. Application of an anti-slip layer can effectively improve the result.

Table 4: Steel thickness (saturation) - sheet metal selection
MW 21.9x10 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	5%	0.73 kg / 1.61 lbs 732.5 g / 7.2 N
1 mm	13%	1.83 kg / 4.04 lbs 1831.3 g / 18.0 N
2 mm	25%	3.66 kg / 8.07 lbs 3662.5 g / 35.9 N
3 mm	38%	5.49 kg / 12.11 lbs 5493.8 g / 53.9 N
5 mm	63%	9.16 kg / 20.19 lbs 9156.3 g / 89.8 N
10 mm	100%	14.65 kg / 32.30 lbs 14650.0 g / 143.7 N
11 mm	100%	14.65 kg / 32.30 lbs 14650.0 g / 143.7 N
12 mm	100%	14.65 kg / 32.30 lbs 14650.0 g / 143.7 N

A thin sheet cannot take in the full magnetic flux, which weakens actual performance of the holder. If you install a neodymium to a weak sheet, the magnetism will penetrate right through and the attraction force will be weaker. To squeeze full efficiency of this neodymium's potential, you need a suitably thick piece of metal. The material oversaturation causes that on delicate walls (e.g., car bodies), the magnet holds weaker. We advise picking the steel cross-section based on the following data.

Table 5: Thermal stability (material behavior) - thermal limit
MW 21.9x10 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	14.65 kg / 32.30 lbs 14650.0 g / 143.7 N	OK
40 °C	-2.2%	14.33 kg / 31.59 lbs 14327.7 g / 140.6 N	OK
60 °C	-4.4%	14.01 kg / 30.88 lbs 14005.4 g / 137.4 N
80 °C	-6.6%	13.68 kg / 30.17 lbs 13683.1 g / 134.2 N
100 °C	-28.8%	10.43 kg / 23.00 lbs 10430.8 g / 102.3 N

Ordinary NdFeB products change their properties power above the temperature limit. Avoid high temperatures – heat can irreversibly destroy this magnet. With increasing heat, the neodymium's capacity temporarily decreases. Refrain from using this magnet close to ovens exceeding its safe range. Exceeding the critical threshold will cause destruction of magnetism.

*Important note: Heat tolerance depends not only on the material grade, and the Permeance Coefficient Pc. Flat magnets (pancake types) are more susceptible to demagnetization sooner than long magnets. Red status in the table points to a risk of irreversible loss for this particular item.

Table 6: Two magnets (repulsion) - forces in the system
MW 21.9x10 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	40.53 kg / 89.35 lbs 5 433 Gs	6.08 kg / 13.40 lbs 6079 g / 59.6 N	N/A
1 mm	37.31 kg / 82.26 lbs 8 017 Gs	5.60 kg / 12.34 lbs 5597 g / 54.9 N	33.58 kg / 74.03 lbs ~0 Gs
2 mm	34.07 kg / 75.11 lbs 7 660 Gs	5.11 kg / 11.27 lbs 5110 g / 50.1 N	30.66 kg / 67.60 lbs ~0 Gs
3 mm	30.92 kg / 68.16 lbs 7 297 Gs	4.64 kg / 10.22 lbs 4637 g / 45.5 N	27.82 kg / 61.34 lbs ~0 Gs
5 mm	25.04 kg / 55.20 lbs 6 567 Gs	3.76 kg / 8.28 lbs 3756 g / 36.8 N	22.54 kg / 49.68 lbs ~0 Gs
10 mm	13.74 kg / 30.29 lbs 4 865 Gs	2.06 kg / 4.54 lbs 2061 g / 20.2 N	12.37 kg / 27.26 lbs ~0 Gs
20 mm	3.67 kg / 8.09 lbs 2 515 Gs	0.55 kg / 1.21 lbs 551 g / 5.4 N	3.30 kg / 7.28 lbs ~0 Gs
50 mm	0.13 kg / 0.29 lbs 476 Gs	0.02 kg / 0.04 lbs 20 g / 0.2 N	0.12 kg / 0.26 lbs ~0 Gs
60 mm	0.06 kg / 0.12 lbs 312 Gs	0.01 kg / 0.02 lbs 8 g / 0.1 N	0.05 kg / 0.11 lbs ~0 Gs
70 mm	0.03 kg / 0.06 lbs 214 Gs	0.00 kg / 0.01 lbs 4 g / 0.0 N	0.02 kg / 0.05 lbs ~0 Gs
80 mm	0.01 kg / 0.03 lbs 153 Gs	0.00 kg / 0.00 lbs 2 g / 0.0 N	0.01 kg / 0.03 lbs ~0 Gs
90 mm	0.01 kg / 0.02 lbs 113 Gs	0.00 kg / 0.00 lbs 1 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
100 mm	0.00 kg / 0.01 lbs 86 Gs	0.00 kg / 0.00 lbs 1 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs

Two magnets attract each other from a significantly greater distance than a neodymium and metal combination. The connection of two magnets creates a more powerful interaction and a larger range of performance. Designing a powerful holder? Utilize two neodymiums instead of one magnet and a striker plate. Be careful that when attracting two neodymiums, the pinch force is extreme. The repulsion force is slightly lower than the connection force, but still large.
*The magnetic induction between like poles is approximately ~0 Gs in the exact middle between the magnets (due to field cancellation).
Important: Estimates refer to sliding force of a pair of same magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Safety (HSE) (implants) - precautionary measures
MW 21.9x10 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	11.0 cm
Hearing aid	10 Gs (1.0 mT)	9.0 cm
Timepiece	20 Gs (2.0 mT)	7.0 cm
Phone / Smartphone	40 Gs (4.0 mT)	5.5 cm
Remote	50 Gs (5.0 mT)	5.0 cm
Payment card	400 Gs (40.0 mT)	2.0 cm
HDD hard drive	600 Gs (60.0 mT)	2.0 cm

Powerful magnet radiation poses a large risk to IT equipment and medical implants. These neodymiums generate a field that disrupts operation of sensitive medical devices. Be aware: the unseen radiation passes through tissues and housings. Increased vigilance must be taken by people with cochlear implants and insulin pumps. The risk also applies to: mechanical watches, remotes, membranes, and screens. Do not bring the product near payment cards, HDD media, or precise measuring instruments.

Table 8: Impact energy (cracking risk) - warning
MW 21.9x10 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	24.23 km/h (6.73 m/s)	0.64 J
30 mm	39.81 km/h (11.06 m/s)	1.73 J
50 mm	51.36 km/h (14.27 m/s)	2.87 J
100 mm	72.63 km/h (20.17 m/s)	5.75 J

NdFeB products are delicate – a strong collision with metal causes immediate chipping. Watch the impact speed – a neodymium left loose turns into a projectile. Striking energy can cause material chips or dangerous crushing to fingers. Be sure to control the product during installation so it doesn't slam with momentum against the steel surface. A contact at a velocity of dozens of km/h ends with a crack of the neodymium. Use safety goggles when playing with powerful specimens.

Table 9: Corrosion resistance
MW 21.9x10 / 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: Electrical data (P_c)
MW 21.9x10 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	16 059 Mx	160.6 µWb
P_c Coefficient	0.55	Low (Flat)

Total magnetic flux emitted by the pole surface. Key data for generator designers as well as sensors. The P_c coefficient defines the working geometry.

Table 11: Hydrostatics and buoyancy
MW 21.9x10 / N38

Environment	Effective steel pull	Effect
Air (land)	14.65 kg	Standard
Water (riverbed)	16.77 kg (+2.12 kg buoyancy gain)	+14.5%

Corrosion warning: Remember to wipe the magnet thoroughly after removing it from water and apply a protective layer (e.g., oil) to avoid corrosion.

In water, the magnet feels stronger thanks to Archimedes' principle. However, remember the water resistance when pulling the rope quickly.

1. Sliding resistance

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

2. Steel saturation

*Thin steel (e.g. 0.5mm PC case) severely limits the holding force.

3. Thermal stability

*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) = 0.55

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.

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: 010045-2026

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64.94 ZŁ brutto / pcs

The presented product is a very strong cylinder magnet, composed of modern NdFeB material, which, at dimensions of Ø21.9x10 mm, guarantees maximum efficiency. This specific item features a tolerance of ±0.1mm and industrial build quality, making it an ideal solution for the most demanding engineers and designers. As a magnetic rod with significant force (approx. 14.65 kg), this product is in stock from our European logistics center, ensuring rapid order fulfillment. Additionally, its triple-layer Ni-Cu-Ni coating shields it against corrosion in typical operating conditions, ensuring an aesthetic appearance and durability for years.

This model is perfect for building generators, advanced sensors, and efficient filters, where maximum induction on a small surface counts. Thanks to the pull force of 143.71 N with a weight of only 28.25 g, this cylindrical magnet 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 immediate cracking of this professional component. To ensure stability in automation, specialized industrial adhesives are used, which do not react with the nickel coating and fill the gap, guaranteeing durability of the connection.

Grade N38 is the most popular standard for professional neodymium magnets, offering an optimal price-to-power ratio and operational stability. If you need even stronger magnets in the same volume (Ø21.9x10), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our store.

The presented product is a neodymium magnet with precisely defined parameters: diameter 21.9 mm and height 10 mm. The value of 143.71 N means that the magnet is capable of holding a weight many times exceeding its own mass of 28.25 g. The product has a [NiCuNi] coating, which protects the surface against external factors, giving it an aesthetic, silvery shine.

This cylinder is magnetized axially (along the height of 10 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.

Strengths and weaknesses of Nd₂Fe₁₄B magnets.

Strengths

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

They do not lose strength, even during around 10 years – the reduction in lifting capacity is only ~1% (based on measurements),
They have excellent resistance to magnetic field loss due to opposing magnetic fields,
Thanks to the shimmering finish, the plating of Ni-Cu-Ni, gold, or silver-plated gives an visually attractive appearance,
Magnetic induction on the working part of the magnet remains extremely intense,
Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can function (depending on the form) even at a temperature of 230°C or more...
Possibility of exact shaping and optimizing to defined applications,
Versatile presence in modern industrial fields – they serve a role in mass storage devices, drive modules, precision medical tools, as well as modern systems.
Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Limitations

Characteristics of disadvantages of neodymium magnets: tips and applications.

At strong impacts they can break, therefore we recommend placing them in special holders. A metal housing provides additional protection against damage and increases the magnet's durability.
When exposed to high temperature, neodymium magnets suffer a drop in strength. Often, when the temperature exceeds 80°C, their strength 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 oxidize in a humid environment. For use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
Limited ability of creating threads in the magnet and complex shapes - preferred is a housing - magnet mounting.
Possible danger to health – tiny shards of magnets pose a threat, when accidentally swallowed, which is particularly important in the context of child safety. Furthermore, tiny parts of these products can disrupt the diagnostic process medical after entering the body.
High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which hinders application in large quantities

Holding force characteristics

Maximum lifting capacity of the magnet – what it depends on?

Breakaway force is the result of a measurement for ideal contact conditions, taking into account:

with the application of a yoke made of low-carbon steel, guaranteeing full magnetic saturation
with a cross-section minimum 10 mm
characterized by smoothness
under conditions of ideal adhesion (metal-to-metal)
for force acting at a right angle (in the magnet axis)
at temperature room level

Determinants of lifting force in real conditions

Effective lifting capacity is influenced by working environment parameters, including (from most important):

Distance – existence of any layer (rust, dirt, gap) acts as an insulator, which lowers power rapidly (even by 50% at 0.5 mm).
Force direction – catalog parameter refers to detachment vertically. When slipping, the magnet exhibits significantly lower power (often approx. 20-30% of nominal force).
Wall thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field passes through the material instead of generating force.
Steel type – low-carbon steel gives the best results. Higher carbon content lower magnetic properties and lifting capacity.
Plate texture – smooth surfaces guarantee perfect abutment, which improves field saturation. Uneven metal reduce efficiency.
Operating temperature – neodymium magnets have a sensitivity to temperature. At higher temperatures they are weaker, and at low temperatures they can be stronger (up to a certain limit).

Holding force was checked on the plate surface of 20 mm thickness, when a perpendicular force was applied, whereas under shearing force the load capacity is reduced by as much as fivefold. Moreover, even a slight gap between the magnet’s surface and the plate lowers the load capacity.

Precautions when working with NdFeB magnets

Respect the power

Be careful. Rare earth magnets attract from a long distance and connect with huge force, often faster than you can move away.

Danger to pacemakers

People with a heart stimulator should maintain an large gap from magnets. The magnetic field can disrupt the operation of the implant.

GPS Danger

A strong magnetic field interferes with the operation of magnetometers in phones and navigation systems. Maintain magnets near a device to prevent damaging the sensors.

Machining danger

Powder produced during machining of magnets is self-igniting. Do not drill into magnets without proper cooling and knowledge.

Magnetic media

Avoid bringing magnets close to a wallet, computer, or TV. The magnetic field can permanently damage these devices and wipe information from cards.

This is not a toy

Absolutely store magnets out of reach of children. Ingestion danger is high, and the effects of magnets connecting inside the body are life-threatening.

Hand protection

Pinching hazard: The pulling power is so immense that it can cause hematomas, pinching, and broken bones. Protective gloves are recommended.

Power loss in heat

Regular neodymium magnets (grade N) undergo demagnetization when the temperature goes above 80°C. This process is irreversible.

Allergy Warning

Certain individuals suffer from a hypersensitivity to nickel, which is the standard coating for neodymium magnets. Frequent touching can result in an allergic reaction. We strongly advise wear protective gloves.

Material brittleness

NdFeB magnets are sintered ceramics, meaning they are prone to chipping. Clashing of two magnets will cause them breaking into small pieces.

Security! Details about risks in the article: Magnet Safety Guide.

MW 21.9x10 / N38 - cylindrical magnet

Technical specification of the product - MW 21.9x10 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical modeling of the magnet - data

Table 1: Static force (pull vs gap) - characteristics MW 21.9x10 / N38

Table 2: Shear load (wall) MW 21.9x10 / N38

Table 3: Vertical assembly (shearing) - vertical pull MW 21.9x10 / N38

Table 4: Steel thickness (saturation) - sheet metal selection MW 21.9x10 / N38

Table 5: Thermal stability (material behavior) - thermal limit MW 21.9x10 / N38

Table 6: Two magnets (repulsion) - forces in the system MW 21.9x10 / N38

Table 7: Safety (HSE) (implants) - precautionary measures MW 21.9x10 / N38

Table 8: Impact energy (cracking risk) - warning MW 21.9x10 / N38

Table 9: Corrosion resistance MW 21.9x10 / N38

Table 10: Electrical data (Pc) MW 21.9x10 / N38

Table 11: Hydrostatics and buoyancy MW 21.9x10 / N38

1. Sliding resistance

2. Steel saturation

3. Thermal stability

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

Chemical composition

Ecology and recycling (GPSR)

Magnet pull force

Magnetic Induction

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Strengths and weaknesses of Nd2Fe14B magnets.

Strengths

Limitations

Holding force characteristics

Maximum lifting capacity of the magnet – what it depends on?

Determinants of lifting force in real conditions

Precautions when working with NdFeB magnets

Respect the power

Danger to pacemakers

GPS Danger

Machining danger

Magnetic media

This is not a toy

Hand protection

Power loss in heat

Allergy Warning

Material brittleness

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (pull vs gap) - characteristics
MW 21.9x10 / N38

Table 2: Shear load (wall)
MW 21.9x10 / N38

Table 3: Vertical assembly (shearing) - vertical pull
MW 21.9x10 / N38

Table 4: Steel thickness (saturation) - sheet metal selection
MW 21.9x10 / N38

Table 5: Thermal stability (material behavior) - thermal limit
MW 21.9x10 / N38

Table 6: Two magnets (repulsion) - forces in the system
MW 21.9x10 / N38

Table 7: Safety (HSE) (implants) - precautionary measures
MW 21.9x10 / N38

Table 8: Impact energy (cracking risk) - warning
MW 21.9x10 / N38

Table 9: Corrosion resistance
MW 21.9x10 / N38

Table 10: Electrical data (P_c)
MW 21.9x10 / N38

Table 11: Hydrostatics and buoyancy
MW 21.9x10 / N38

Strengths and weaknesses of Nd₂Fe₁₄B magnets.