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MW 18x10 / 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 010401

GTIN/EAN: 5906301811107

5.00

Diameter Ø

18 mm [±0,1 mm]

Height

10 mm [±0,1 mm]

Weight

19.09 g

Magnetization Direction

↑ axial

Load capacity

10.76 kg / 105.51 N

Magnetic Induction

460.54 mT / 4605 Gs

Coating

[NiCuNi] Nickel

view technical specifications »

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Technical specification - MW 18x10 / N38 - cylindrical magnet

Specification / characteristics - MW 18x10 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010401
GTIN/EAN	5906301811107
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	18 mm [±0,1 mm]
Height	10 mm [±0,1 mm]
Weight	19.09 g
Magnetization Direction	↑ axial
Load capacity ~ ?	10.76 kg / 105.51 N
Magnetic Induction ~ ?	460.54 mT / 4605 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 18x10 / N38 - cylindrical magnet

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

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

Technical modeling of the magnet - data

The following values are the direct effect of a engineering calculation. Results rely on models for the material Nd₂Fe₁₄B. Actual performance may differ from theoretical values. Use these data as a preliminary roadmap when designing systems.

Table 1: Static force (pull vs distance) - power drop
MW 18x10 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	4604 Gs 460.4 mT	10.76 kg / 23.72 pounds 10760.0 g / 105.6 N	dangerous!
1 mm	4114 Gs 411.4 mT	8.59 kg / 18.94 pounds 8592.4 g / 84.3 N	warning
2 mm	3615 Gs 361.5 mT	6.64 kg / 14.63 pounds 6635.0 g / 65.1 N	warning
3 mm	3137 Gs 313.7 mT	5.00 kg / 11.01 pounds 4996.2 g / 49.0 N	warning
5 mm	2305 Gs 230.5 mT	2.70 kg / 5.95 pounds 2698.6 g / 26.5 N	warning
10 mm	1045 Gs 104.5 mT	0.55 kg / 1.22 pounds 555.0 g / 5.4 N	weak grip
15 mm	517 Gs 51.7 mT	0.14 kg / 0.30 pounds 135.7 g / 1.3 N	weak grip
20 mm	285 Gs 28.5 mT	0.04 kg / 0.09 pounds 41.1 g / 0.4 N	weak grip
30 mm	110 Gs 11.0 mT	0.01 kg / 0.01 pounds 6.2 g / 0.1 N	weak grip
50 mm	29 Gs 2.9 mT	0.00 kg / 0.00 pounds 0.4 g / 0.0 N	weak grip

Magnetic force weakens sharply with every mm of spacing. Remember that even the smallest gap (e.g., dirt, varnish, rust) strongly diminishes the holding power. Neodymiums hold strongest in perfect adhesion; distance drastically cuts the force. Notice how rapidly the parameters drop, when the magnet does not adhere flatly to the metal substrate. When calculating the mounting, avoid additional spacers.

Table 2: Vertical force (vertical surface)
MW 18x10 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	2.15 kg / 4.74 pounds 2152.0 g / 21.1 N
1 mm	Stal (~0.2)	1.72 kg / 3.79 pounds 1718.0 g / 16.9 N
2 mm	Stal (~0.2)	1.33 kg / 2.93 pounds 1328.0 g / 13.0 N
3 mm	Stal (~0.2)	1.00 kg / 2.20 pounds 1000.0 g / 9.8 N
5 mm	Stal (~0.2)	0.54 kg / 1.19 pounds 540.0 g / 5.3 N
10 mm	Stal (~0.2)	0.11 kg / 0.24 pounds 110.0 g / 1.1 N
15 mm	Stal (~0.2)	0.03 kg / 0.06 pounds 28.0 g / 0.3 N
20 mm	Stal (~0.2)	0.01 kg / 0.02 pounds 8.0 g / 0.1 N
30 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 2.0 g / 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N

The following data presents the approximate shear load required to cause the slippage of the magnet downwards along a vertical metal surface (assuming typical friction). This value varies with the air gap between the magnet and the surface.

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MW 18x10 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	3.23 kg / 7.12 pounds 3228.0 g / 31.7 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	2.15 kg / 4.74 pounds 2152.0 g / 21.1 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	1.08 kg / 2.37 pounds 1076.0 g / 10.6 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	5.38 kg / 11.86 pounds 5380.0 g / 52.8 N

When hanging a magnet on a vertical wall (e.g., a board), it will only hold barely approx. 20%-30% of its nominal power. Gravitational force and a weak degree of grip cause that magnets slip faster than they detach. Planning a wall mount? Remember that the sliding force is much weaker than the maximum static pull force. On a slippery surface, the holder will slip down under a much lighter load. Application of an anti-slip pad can drastically improve the result.

Table 4: Material efficiency (saturation) - sheet metal selection
MW 18x10 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	5%	0.54 kg / 1.19 pounds 538.0 g / 5.3 N
1 mm	13%	1.35 kg / 2.97 pounds 1345.0 g / 13.2 N
2 mm	25%	2.69 kg / 5.93 pounds 2690.0 g / 26.4 N
3 mm	38%	4.04 kg / 8.90 pounds 4035.0 g / 39.6 N
5 mm	63%	6.73 kg / 14.83 pounds 6725.0 g / 66.0 N
10 mm	100%	10.76 kg / 23.72 pounds 10760.0 g / 105.6 N
11 mm	100%	10.76 kg / 23.72 pounds 10760.0 g / 105.6 N
12 mm	100%	10.76 kg / 23.72 pounds 10760.0 g / 105.6 N

A thin sheet cannot absorb the full magnetic flux, which weakens actual performance of the holder. Should you attach a powerful product to a too thin substrate, the flux will penetrate right through and the pull force will drop sharply. To squeeze 100% of this neodymium's power, you require a sufficiently solid element of metal. The saturation effect causes that on delicate walls (e.g., car bodies), the holder holds weaker. We suggest choosing the steel thickness based on the following data.

Table 5: Thermal stability (stability) - power drop
MW 18x10 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	10.76 kg / 23.72 pounds 10760.0 g / 105.6 N	OK
40 °C	-2.2%	10.52 kg / 23.20 pounds 10523.3 g / 103.2 N	OK
60 °C	-4.4%	10.29 kg / 22.68 pounds 10286.6 g / 100.9 N	OK
80 °C	-6.6%	10.05 kg / 22.16 pounds 10049.8 g / 98.6 N
100 °C	-28.8%	7.66 kg / 16.89 pounds 7661.1 g / 75.2 N

Classic neodymiums irreversibly lose parameters above the temperature limit. Avoid high temperatures – high temperature can permanently demagnetize this product. With every degree above norm, the magnet's force briefly decreases. Avoid using this product close to heaters higher than its operating temperature limit. Exceeding the critical threshold will lead to irreversible degradation of magnetic properties.

*Engineering note: Thermal stability depends not only on the material grade, and the Permeance Coefficient Pc. Thin magnets (low Pc) may lose charge permanently sooner than taller cylinders. Red status in the table signals a risk of irreversible loss for this specific geometry.

Table 6: Two magnets (repulsion) - field collision
MW 18x10 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Sliding Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	33.25 kg / 73.30 pounds 5 648 Gs	4.99 kg / 10.99 pounds 4987 g / 48.9 N	N/A
1 mm	29.87 kg / 65.85 pounds 8 727 Gs	4.48 kg / 9.88 pounds 4480 g / 44.0 N	26.88 kg / 59.27 pounds ~0 Gs
2 mm	26.55 kg / 58.53 pounds 8 228 Gs	3.98 kg / 8.78 pounds 3983 g / 39.1 N	23.90 kg / 52.68 pounds ~0 Gs
3 mm	23.41 kg / 51.62 pounds 7 727 Gs	3.51 kg / 7.74 pounds 3512 g / 34.5 N	21.07 kg / 46.46 pounds ~0 Gs
5 mm	17.84 kg / 39.33 pounds 6 744 Gs	2.68 kg / 5.90 pounds 2676 g / 26.3 N	16.06 kg / 35.40 pounds ~0 Gs
10 mm	8.34 kg / 18.38 pounds 4 611 Gs	1.25 kg / 2.76 pounds 1251 g / 12.3 N	7.50 kg / 16.54 pounds ~0 Gs
20 mm	1.71 kg / 3.78 pounds 2 091 Gs	0.26 kg / 0.57 pounds 257 g / 2.5 N	1.54 kg / 3.40 pounds ~0 Gs
50 mm	0.05 kg / 0.10 pounds 342 Gs	0.01 kg / 0.02 pounds 7 g / 0.1 N	0.04 kg / 0.09 pounds ~0 Gs
60 mm	0.02 kg / 0.04 pounds 221 Gs	0.00 kg / 0.01 pounds 3 g / 0.0 N	0.02 kg / 0.04 pounds ~0 Gs
70 mm	0.01 kg / 0.02 pounds 150 Gs	0.00 kg / 0.00 pounds 1 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
80 mm	0.00 kg / 0.01 pounds 106 Gs	0.00 kg / 0.00 pounds 1 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
90 mm	0.00 kg / 0.01 pounds 78 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
100 mm	0.00 kg / 0.00 pounds 59 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs

Two strong neodymiums interact from a wider radius than a magnet and sheet combination. Such a system of two magnets generates a stronger field and a wider radius of operation. Want to build a strong closure? Use a pair of magnets instead of one magnet and a striker plate. Be careful that when connecting a pair of magnets, the pinch force is massive. The levitation is slightly lower than the attraction, but still significant.
*The magnetic induction between like poles is approximately ~0 Gs at the geometric center of the gap (caused by magnetic field nullification).
Note: Calculations demonstrate friction force of dual identical neodymium magnets (friction ~0.15 for Ni-Ni layer).

Table 7: Protective zones (implants) - precautionary measures
MW 18x10 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	9.5 cm
Hearing aid	10 Gs (1.0 mT)	7.5 cm
Timepiece	20 Gs (2.0 mT)	6.0 cm
Mobile device	40 Gs (4.0 mT)	4.5 cm
Car key	50 Gs (5.0 mT)	4.5 cm
Payment card	400 Gs (40.0 mT)	2.0 cm
HDD hard drive	600 Gs (60.0 mT)	1.5 cm

Powerful magnet radiation is a serious hazard to IT equipment and pacemakers. These neodymiums generate a field that destroys function of digital equipment. Be aware: the unseen radiation passes through tissues and glass. Increased vigilance must be exercised by people with cochlear implants and drug dispensers. Influence will be felt by: mechanical watches, car keys, speakers, and screens. Do not place the magnet near cards, HDD media, or sensitive navigation tools.

Table 8: Impact energy (kinetic energy) - collision effects
MW 18x10 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	24.70 km/h (6.86 m/s)	0.45 J
30 mm	41.49 km/h (11.52 m/s)	1.27 J
50 mm	53.54 km/h (14.87 m/s)	2.11 J
100 mm	75.72 km/h (21.03 m/s)	4.22 J

Neodymium magnets are delicate – a violent impact against metal risks their cracking. Pay attention to connection velocity – a magnet released freely becomes dangerous. Striking energy can cause material chips or painful pinches to fingers. Always hold the magnet during installation so it doesn't hit with great force against the metal. A contact at a velocity of dozens of km/h almost guarantees destruction of the neodymium. Wear eye protection when handling with large magnets.

Table 9: Coating parameters (durability)
MW 18x10 / 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. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Construction data (P_c)
MW 18x10 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	11 828 Mx	118.3 µWb
P_c Coefficient	0.63	High (Stable)

Total magnetic flux emitted by the magnet pole. Essential parameter for generator designers as well as sensors. The P_c coefficient determines the magnet's operating point.

Table 11: Underwater work (magnet fishing)
MW 18x10 / N38

Environment	Effective steel pull	Effect
Air (land)	10.76 kg	Standard
Water (riverbed)	12.32 kg (+1.56 kg buoyancy gain)	+14.5%

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

In water, the magnet feels stronger thanks to Archimedes' principle. Buoyancy helps in lifting finds.

1. Vertical hold

*Caution: On a vertical wall, the magnet retains merely a fraction of its max power.

2. Plate thickness effect

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

3. Temperature resistance

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

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.63

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 specification and ecology

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: 010401-2026

Measurement Calculator

Magnet pull force

Force in lbs

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Gauss (Gs)

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Put your value in a single field to get results for the other units at once.

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MPL 3x3x3 / N38 - lamellar magnet

0.1845 ZŁ brutto / pcs

This product is an extremely powerful cylinder magnet, composed of durable NdFeB material, which, at dimensions of Ø18x10 mm, guarantees optimal power. The MW 18x10 / N38 model is characterized by an accuracy of ±0.1mm and industrial build quality, making it an excellent solution for professional engineers and designers. As a magnetic rod with impressive force (approx. 10.76 kg), this product is in stock from our warehouse in Poland, ensuring rapid order fulfillment. Furthermore, its 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 DIY projects, advanced automation, and broadly understood industry, serving as a fastening or actuating element. Thanks to the high power of 105.51 N with a weight of only 19.09 g, this rod is indispensable in miniature devices and wherever every gram matters.

Due to the delicate structure of the ceramic sinter, we absolutely advise against force-fitting (so-called press-fit), as this risks immediate cracking of this professional component. To ensure long-term durability in industry, specialized industrial adhesives are used, which do not react with the nickel coating and fill the gap, guaranteeing high repeatability of the connection.

Magnets N38 are suitable for 90% of applications in modeling and machine building, where extreme miniaturization with maximum force is not required. If you need even stronger magnets in the same volume (Ø18x10), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our warehouse.

This model is characterized by dimensions Ø18x10 mm, which, at a weight of 19.09 g, makes it an element with impressive magnetic energy density. The key parameter here is the holding force amounting to approximately 10.76 kg (force ~105.51 N), which, with such compact dimensions, proves the high power of the NdFeB material. The product has a [NiCuNi] coating, which protects the surface against oxidation, giving it an aesthetic, silvery shine.

This cylinder is magnetized axially (along the height of 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.

Advantages as well as disadvantages of neodymium magnets.

Pros

Apart from their notable magnetic energy, neodymium magnets have these key benefits:

They virtually do not lose strength, because even after ten years the performance loss is only ~1% (based on calculations),
They have excellent resistance to magnetic field loss as a result of external magnetic sources,
A magnet with a metallic silver surface looks better,
Magnets have maximum magnetic induction on the working surface,
Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can function (depending on the form) even at a temperature of 230°C or more...
Thanks to modularity in constructing and the capacity to modify to client solutions,
Universal use in modern technologies – they are commonly used in data components, electromotive mechanisms, medical devices, as well as industrial machines.
Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in small dimensions, which enables their usage in miniature devices

Cons

Disadvantages of neodymium magnets:

To avoid cracks upon strong impacts, we suggest using special steel holders. Such a solution secures the magnet and simultaneously improves its durability.
Neodymium magnets lose their force 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 start to 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 realizing threads and complex shapes in magnets, we propose using cover - magnetic holder.
Health risk related to microscopic parts of magnets pose a threat, when accidentally swallowed, which gains importance in the context of child safety. It is also worth noting that small components of these products are able to complicate diagnosis medical when they are in the body.
Due to complex production process, their price is higher than average,

Pull force analysis

Maximum lifting capacity of the magnet – what contributes to it?

Magnet power is the result of a measurement for optimal configuration, assuming:

using a base made of high-permeability steel, acting as a circuit closing element
with a thickness of at least 10 mm
with a plane free of scratches
under conditions of ideal adhesion (surface-to-surface)
during pulling in a direction vertical to the mounting surface
at ambient temperature approx. 20 degrees Celsius

Lifting capacity in practice – influencing factors

Please note that the application force may be lower depending on the following factors, starting with the most relevant:

Distance – existence of foreign body (rust, tape, air) interrupts the magnetic circuit, which reduces power steeply (even by 50% at 0.5 mm).
Loading method – catalog parameter refers to detachment vertically. When slipping, the magnet exhibits significantly lower power (typically approx. 20-30% of nominal force).
Plate thickness – insufficiently thick sheet does not accept the full field, causing part of the power to be lost into the air.
Chemical composition of the base – low-carbon steel attracts best. Alloy admixtures decrease magnetic permeability and holding force.
Smoothness – ideal contact is possible only on smooth steel. Rough texture reduce the real contact area, weakening the magnet.
Thermal factor – high temperature reduces magnetic field. Too high temperature can permanently demagnetize the magnet.

Lifting capacity was assessed by applying a steel plate with a smooth surface of optimal thickness (min. 20 mm), under perpendicular detachment force, in contrast under attempts to slide the magnet the holding force is lower. In addition, even a slight gap between the magnet’s surface and the plate lowers the lifting capacity.

Warnings

This is not a toy

Adult use only. Tiny parts pose a choking risk, leading to serious injuries. Store away from kids and pets.

Cards and drives

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

Heat warning

Standard neodymium magnets (N-type) lose power when the temperature exceeds 80°C. This process is irreversible.

Combustion hazard

Dust generated during cutting of magnets is flammable. Avoid drilling into magnets unless you are an expert.

Nickel coating and allergies

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

Caution required

Be careful. Rare earth magnets attract from a distance and snap with huge force, often faster than you can react.

GPS and phone interference

Note: neodymium magnets produce a field that disrupts precision electronics. Keep a safe distance from your mobile, tablet, and navigation systems.

Serious injuries

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

Magnets are brittle

Despite metallic appearance, the material is delicate and not impact-resistant. Do not hit, as the magnet may shatter into hazardous fragments.

Warning for heart patients

For implant holders: Powerful magnets disrupt medical devices. Keep at least 30 cm distance or request help to handle the magnets.

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

MW 18x10 / N38 - cylindrical magnet

Technical specification - MW 18x10 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical modeling of the magnet - data

Table 1: Static force (pull vs distance) - power drop MW 18x10 / N38

Table 2: Vertical force (vertical surface) MW 18x10 / N38

Table 3: Wall mounting (shearing) - behavior on slippery surfaces MW 18x10 / N38

Table 4: Material efficiency (saturation) - sheet metal selection MW 18x10 / N38

Table 5: Thermal stability (stability) - power drop MW 18x10 / N38

Table 6: Two magnets (repulsion) - field collision MW 18x10 / N38

Table 7: Protective zones (implants) - precautionary measures MW 18x10 / N38

Table 8: Impact energy (kinetic energy) - collision effects MW 18x10 / N38

Table 9: Coating parameters (durability) MW 18x10 / N38

Table 10: Construction data (Pc) MW 18x10 / N38

Table 11: Underwater work (magnet fishing) MW 18x10 / N38

1. Vertical hold

2. Plate thickness effect

3. Temperature resistance

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

Chemical composition

Ecology and recycling (GPSR)

Magnet pull force

Magnetic Induction

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Advantages as well as disadvantages of neodymium magnets.

Pros

Cons

Pull force analysis

Maximum lifting capacity of the magnet – what contributes to it?

Lifting capacity in practice – influencing factors

Warnings

This is not a toy

Cards and drives

Heat warning

Combustion hazard

Nickel coating and allergies

Caution required

GPS and phone interference

Serious injuries

Magnets are brittle

Warning for heart patients

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (pull vs distance) - power drop
MW 18x10 / N38

Table 2: Vertical force (vertical surface)
MW 18x10 / N38

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MW 18x10 / N38

Table 4: Material efficiency (saturation) - sheet metal selection
MW 18x10 / N38

Table 5: Thermal stability (stability) - power drop
MW 18x10 / N38

Table 6: Two magnets (repulsion) - field collision
MW 18x10 / N38

Table 7: Protective zones (implants) - precautionary measures
MW 18x10 / N38

Table 8: Impact energy (kinetic energy) - collision effects
MW 18x10 / N38

Table 9: Coating parameters (durability)
MW 18x10 / N38

Table 10: Construction data (P_c)
MW 18x10 / N38

Table 11: Underwater work (magnet fishing)
MW 18x10 / N38