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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 specifications »

15.50 ZŁ with VAT / pcs + price for transport

12.60 ZŁ net + 23% VAT / pcs

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Carbon Footprint – environmental impact GPSR Regulation – product safety

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Lifting power as well as shape of a neodymium magnet can be reviewed on our magnetic mass calculator.

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Detailed specification - 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

Technical simulation of the assembly - technical parameters

These values represent the direct effect of a physical analysis. Values are based on models for the class Nd₂Fe₁₄B. Actual conditions may deviate from the simulation results. Please consider these calculations as a reference point for designers.

Table 1: Static pull force (force vs gap) - interaction chart
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	critical level
1 mm	3830 Gs 383.0 mT	12.31 kg / 27.15 LBS 12314.7 g / 120.8 N	critical level
2 mm	3466 Gs 346.6 mT	10.08 kg / 22.23 LBS 10083.5 g / 98.9 N	critical level
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	safe
15 mm	671 Gs 67.1 mT	0.38 kg / 0.83 LBS 378.5 g / 3.7 N	safe
20 mm	386 Gs 38.6 mT	0.13 kg / 0.28 LBS 125.0 g / 1.2 N	safe
30 mm	156 Gs 15.6 mT	0.02 kg / 0.04 LBS 20.4 g / 0.2 N	safe
50 mm	43 Gs 4.3 mT	0.00 kg / 0.00 LBS 1.5 g / 0.0 N	safe

Grip strength decreases drastically with every mm of distance. Remember that even the smallest gap (e.g., dirt, varnish, rust) strongly weakens the grip. Magnets work most effectively during direct contact; air break weakens the force. Observe how rapidly the pull force drop, when the product does not adhere tightly to the steel surface. When planning the mounting, discard additional spacers.

Table 2: Slippage capacity (vertical surface)
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 shows the estimated weight limit sufficient to start the downward movement of the magnet vertically along a upright steel wall (considering standard friction coefficient). This value is relative to the gap size between the magnet and the surface.

Table 3: Vertical assembly (sliding) - 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 placing a holder on a vertical plane (e.g., a board), it will maintain just about 20%-30% of nominal attraction strength. Gravity and a weak degree of grip influence the fact that magnets move down faster than they pull off. Designing a hanger? Remember that the sliding force is significantly lower than the perpendicular breakaway force. On a smooth steel, the element will slide down under a noticeably lighter cargo. Utilizing a rubberized layer can significantly increase the grip.

Table 4: Material efficiency (substrate influence) - 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 too thin steel is not enough to absorb the full magnetic flux, which wastes potential of the magnet. Should you attach a powerful product to a too thin substrate, the magnetism will pass right through and the attraction force will be weaker. To squeeze the maximum of this magnet's potential, you require a sufficiently solid piece of steel. The saturation phenomenon means that on delicate walls (e.g., car bodies), the magnet shows lower pull force. We advise picking the steel cross-section according to the table below.

Table 5: Working in heat (material behavior) - resistance threshold
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

Standard neodymium magnets change their properties parameters past the thermal threshold. Protect against heat – excessive heat can permanently demagnetize this product. With every degree above norm, the magnet's force briefly lowers. Refrain from using this magnet close to ovens exceeding its operating temperature limit. Ignoring the limit will lead to permanent loss of magnetism.

*Important note: Thermal stability is determined by both grade, as well as the dimension ratios. Thin magnets (pancake types) may lose charge permanently sooner compared to rod magnets. Warning indicator in the table signals permanent field degradation for this particular item.

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

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear 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 magnetic products interact from a wider radius than a magnet and sheet combination. Such a system of magnet-to-magnet creates a more powerful interaction and a further horizon of action. Want to build a powerful holder? Use a pair of magnets instead of a neodymium and a steel. Exercise caution that when bringing together two magnets, the collision energy is extreme. The repulsion force is slightly lower than the connection force, but still large.
*Field value in repulsion mode reaches ~0 Gs at the midpoint between the magnets (resulting from vector opposition).
Important: Estimates demonstrate friction force of two identical neodymium magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Protective zones (electronics) - warnings
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
Mechanical watch	20 Gs (2.0 mT)	7.0 cm
Mobile device	40 Gs (4.0 mT)	5.5 cm
Car key	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

A strong magnetic field is a real danger to IT equipment as well as medical implants. These magnets generate a field that destroys function of sensitive medical devices. Remember: the unseen radiation penetrates the body and glass. Special caution must be exercised by people with hearing aids and insulin pumps. Also at risk are: automatic timepieces, remotes, speakers, and displays. Do not place the magnet near cards, HDD media, or precise measuring instruments.

Table 8: Impact energy (kinetic energy) - 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 prone to chipping – a strong collision with metal can result in shattering. Control the attraction moment – a neodymium left loose turns into a projectile. Kinetic force can destroy the magnet or painful pinches to skin. Hold the magnet firmly during bringing near metal so it doesn't slam with momentum against the steel surface. A collision at high speed ends with a crack of the neodymium. Use safety goggles when playing with large magnets.

Table 9: Surface protection spec
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. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Construction 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)

Flux value emitted by the pole surface. Essential parameter when building generators and motors. P_c value determines the magnet's operating point.

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%

Rust risk: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!

Water displaces steel, making heavy objects slightly lighter. However, remember the water resistance when pulling the rope quickly.

1. Vertical hold

*Warning: On a vertical surface, the magnet retains only ~20% of its nominal pull.

2. Plate thickness effect

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

3. Thermal stability

*For standard magnets, 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.

Engineering data and GPSR

Material specification

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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The offered product is a very strong rod magnet, made from durable NdFeB material, which, at dimensions of Ø21.9x10 mm, guarantees optimal power. This specific item features high dimensional repeatability and professional build quality, making it an excellent solution for professional engineers and designers. As a magnetic rod with significant force (approx. 14.65 kg), this product is in stock from our warehouse in Poland, ensuring rapid order fulfillment. Additionally, its Ni-Cu-Ni coating effectively protects it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.

This model is ideal 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 low weight is crucial.

Due to the delicate structure of the ceramic sinter, you must not use force-fitting (so-called press-fit), as this risks chipping the coating of this professional 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.

Grade N38 is the most popular standard for industrial neodymium magnets, offering an optimal price-to-power ratio and operational stability. If you need the strongest 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.

This model is characterized by dimensions Ø21.9x10 mm, which, at a weight of 28.25 g, makes it an element with impressive magnetic energy density. 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 secures it against external factors, giving it an aesthetic, silvery shine.

This rod magnet 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 through the diameter if your project requires it.

Advantages and disadvantages of Nd₂Fe₁₄B magnets.

Strengths

Besides their high retention, neodymium magnets are valued for these benefits:

They do not lose power, even over approximately ten years – the decrease in strength is only ~1% (according to tests),
Neodymium magnets prove to be remarkably resistant to demagnetization caused by magnetic disturbances,
The use of an elegant coating of noble metals (nickel, gold, silver) causes the element to present itself better,
They feature high magnetic induction at the operating surface, making them more effective,
Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can work (depending on the shape) even at a temperature of 230°C or more...
Thanks to modularity in constructing and the capacity to adapt to specific needs,
Wide application in modern industrial fields – they are utilized in HDD drives, drive modules, medical equipment, also complex engineering applications.
Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in small dimensions, which makes them useful in miniature devices

Disadvantages

Disadvantages of neodymium magnets:

At very 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.
Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of power (a factor is the shape and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely resistant to heat
When exposed to humidity, magnets usually rust. To use them in conditions outside, it is recommended to use protective magnets, such as those in rubber or plastics, which secure oxidation as well as corrosion.
Due to limitations in producing threads and complicated shapes in magnets, we recommend using cover - magnetic mount.
Potential hazard to health – tiny shards of magnets can be dangerous, when accidentally swallowed, which becomes key in the context of child safety. It is also worth noting that small components of these devices are able to disrupt the diagnostic process medical when they are in the body.
Due to complex production process, their price is relatively high,

Lifting parameters

Maximum magnetic pulling force – what contributes to it?

The lifting capacity listed is a measurement result conducted under specific, ideal conditions:

using a plate made of mild steel, functioning as a circuit closing element
whose transverse dimension reaches at least 10 mm
characterized by lack of roughness
with zero gap (without coatings)
for force applied at a right angle (pull-off, not shear)
at ambient temperature approx. 20 degrees Celsius

Lifting capacity in real conditions – factors

It is worth knowing that the magnet holding will differ subject to elements below, starting with the most relevant:

Gap between magnet and steel – even a fraction of a millimeter of separation (caused e.g. by varnish or unevenness) diminishes the magnet efficiency, often by half at just 0.5 mm.
Load vector – maximum parameter is obtained only during perpendicular pulling. The force required to slide of the magnet along the surface is usually many times lower (approx. 1/5 of the lifting capacity).
Wall thickness – the thinner the sheet, the weaker the hold. Magnetic flux penetrates through instead of converting into lifting capacity.
Steel grade – the best choice is high-permeability steel. Hardened steels may have worse magnetic properties.
Smoothness – full contact is obtained only on smooth steel. Rough texture reduce the real contact area, reducing force.
Thermal environment – temperature increase causes a temporary drop of force. It is worth remembering the thermal limit for a given model.

Holding force was tested on the plate surface of 20 mm thickness, when a perpendicular force was applied, in contrast under attempts to slide the magnet the lifting capacity is smaller. Additionally, even a small distance between the magnet’s surface and the plate reduces the load capacity.

H&S for magnets

Allergy Warning

A percentage of the population have a sensitization to Ni, which is the standard coating for neodymium magnets. Frequent touching may cause dermatitis. It is best to wear protective gloves.

Risk of cracking

NdFeB magnets are ceramic materials, which means they are prone to chipping. Clashing of two magnets leads to them shattering into shards.

Respect the power

Use magnets with awareness. Their powerful strength can shock even professionals. Stay alert and do not underestimate their power.

Crushing force

Big blocks can break fingers in a fraction of a second. Never put your hand betwixt two attracting surfaces.

Do not drill into magnets

Powder created during machining of magnets is self-igniting. Avoid drilling into magnets unless you are an expert.

Operating temperature

Regular neodymium magnets (N-type) lose magnetization when the temperature exceeds 80°C. The loss of strength is permanent.

ICD Warning

Warning for patients: Strong magnetic fields affect electronics. Keep at least 30 cm distance or request help to handle the magnets.

Compass and GPS

A powerful magnetic field interferes with the functioning of magnetometers in smartphones and GPS navigation. Maintain magnets near a device to avoid damaging the sensors.

Threat to electronics

Device Safety: Strong magnets can damage data carriers and sensitive devices (heart implants, medical aids, mechanical watches).

Swallowing risk

These products are not toys. Eating a few magnets may result in them attracting across intestines, which constitutes a direct threat to life and necessitates immediate surgery.

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

MW 21.9x10 / N38 - cylindrical magnet

Detailed specification - MW 21.9x10 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical simulation of the assembly - technical parameters

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

Table 2: Slippage capacity (vertical surface) MW 21.9x10 / N38

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

Table 4: Material efficiency (substrate influence) - sheet metal selection MW 21.9x10 / N38

Table 5: Working in heat (material behavior) - resistance threshold MW 21.9x10 / N38

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

Table 7: Protective zones (electronics) - warnings MW 21.9x10 / N38

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

Table 9: Surface protection spec MW 21.9x10 / N38

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

Table 11: Hydrostatics and buoyancy MW 21.9x10 / N38

1. Vertical hold

2. Plate thickness effect

3. Thermal stability

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

Material specification

Ecology and recycling (GPSR)

Magnet pull force

Magnetic Field

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Advantages and disadvantages of Nd2Fe14B magnets.

Strengths

Disadvantages

Lifting parameters

Maximum magnetic pulling force – what contributes to it?

Lifting capacity in real conditions – factors

H&S for magnets

Allergy Warning

Risk of cracking

Respect the power

Crushing force

Do not drill into magnets

Operating temperature

ICD Warning

Compass and GPS

Threat to electronics

Swallowing risk

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

Table 2: Slippage capacity (vertical surface)
MW 21.9x10 / N38

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

Table 4: Material efficiency (substrate influence) - sheet metal selection
MW 21.9x10 / N38

Table 5: Working in heat (material behavior) - resistance threshold
MW 21.9x10 / N38

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

Table 7: Protective zones (electronics) - warnings
MW 21.9x10 / N38

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

Table 9: Surface protection spec
MW 21.9x10 / N38

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

Table 11: Hydrostatics and buoyancy
MW 21.9x10 / N38

Advantages and disadvantages of Nd₂Fe₁₄B magnets.