Product available Ships tomorrow

MW 8x20 / 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 010475

GTIN/EAN: 5906301811138

5.00

Diameter Ø

8 mm [±0,1 mm]

Height

20 mm [±0,1 mm]

Weight

7.54 g

Magnetization Direction

→ diametrical

Load capacity

1.30 kg / 12.71 N

Magnetic Induction

607.01 mT / 6070 Gs

Coating

[NiCuNi] Nickel

technical specifications »

4.60 ZŁ with VAT / pcs + price for transport

3.74 ZŁ net + 23% VAT / pcs

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Call us +48 888 99 98 98 alternatively let us know through contact form through our site.
Parameters as well as structure of neodymium magnets can be calculated using our modular calculator.

Orders placed before 14:00 will be shipped the same business day.

Detailed specification - MW 8x20 / N38 - cylindrical magnet

Specification / characteristics - MW 8x20 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010475
GTIN/EAN	5906301811138
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	8 mm [±0,1 mm]
Height	20 mm [±0,1 mm]
Weight	7.54 g
Magnetization Direction	→ diametrical
Load capacity ~ ?	1.30 kg / 12.71 N
Magnetic Induction ~ ?	607.01 mT / 6070 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 8x20 / N38 - cylindrical magnet

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

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

Engineering simulation of the product - report

These information constitute the direct effect of a physical analysis. Results are based on algorithms for the class Nd₂Fe₁₄B. Operational parameters might slightly differ from theoretical values. Treat these data as a supplementary guide when designing systems.

Table 1: Static force (force vs gap) - power drop
MW 8x20 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	6064 Gs 606.4 mT	1.30 kg / 2.87 pounds 1300.0 g / 12.8 N	low risk
1 mm	4587 Gs 458.7 mT	0.74 kg / 1.64 pounds 743.7 g / 7.3 N	low risk
2 mm	3327 Gs 332.7 mT	0.39 kg / 0.86 pounds 391.4 g / 3.8 N	low risk
3 mm	2388 Gs 238.8 mT	0.20 kg / 0.44 pounds 201.6 g / 2.0 N	low risk
5 mm	1281 Gs 128.1 mT	0.06 kg / 0.13 pounds 58.0 g / 0.6 N	low risk
10 mm	389 Gs 38.9 mT	0.01 kg / 0.01 pounds 5.4 g / 0.1 N	low risk
15 mm	169 Gs 16.9 mT	0.00 kg / 0.00 pounds 1.0 g / 0.0 N	low risk
20 mm	90 Gs 9.0 mT	0.00 kg / 0.00 pounds 0.3 g / 0.0 N	low risk
30 mm	35 Gs 3.5 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	low risk
50 mm	10 Gs 1.0 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	low risk

Grip strength drops drastically with every subsequent millimeter of spacing. Keep in mind that even a microscopic distance (e.g., contamination, paint, dust) strongly weakens the grip. Magnetic products operate optimally in perfect adhesion; gap weakens the force. Observe how quickly the parameters drop, when the magnet does not adhere flatly to the metal substrate. When designing the mounting, discard unnecessary gaps.

Table 2: Slippage force (wall)
MW 8x20 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.26 kg / 0.57 pounds 260.0 g / 2.6 N
1 mm	Stal (~0.2)	0.15 kg / 0.33 pounds 148.0 g / 1.5 N
2 mm	Stal (~0.2)	0.08 kg / 0.17 pounds 78.0 g / 0.8 N
3 mm	Stal (~0.2)	0.04 kg / 0.09 pounds 40.0 g / 0.4 N
5 mm	Stal (~0.2)	0.01 kg / 0.03 pounds 12.0 g / 0.1 N
10 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 2.0 g / 0.0 N
15 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N
20 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N
30 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N

The following data defines the estimated holding capacity sufficient to initiate the sliding of the magnet downwards on a vertical metal surface (assuming standard friction coefficient). The holding force is a function of the gap size between the magnet and the metal.

Table 3: Wall mounting (sliding) - vertical pull
MW 8x20 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.39 kg / 0.86 pounds 390.0 g / 3.8 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.26 kg / 0.57 pounds 260.0 g / 2.6 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.13 kg / 0.29 pounds 130.0 g / 1.3 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.65 kg / 1.43 pounds 650.0 g / 6.4 N

When hanging a magnet on a upright wall (e.g., a car body), it will maintain barely approx. 20%-30% of its maximum pull force. Gravity as well as a weak degree of grip cause that products slide down faster than they pull off. Want to create a hanger? Note that the shear force is much weaker than the perpendicular breakaway force. On a smooth steel, the holder will slip down under a much lighter load. Using a rubber coating can effectively improve the result.

Table 4: Material efficiency (substrate influence) - sheet metal selection
MW 8x20 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.13 kg / 0.29 pounds 130.0 g / 1.3 N
1 mm	25%	0.33 kg / 0.72 pounds 325.0 g / 3.2 N
2 mm	50%	0.65 kg / 1.43 pounds 650.0 g / 6.4 N
3 mm	75%	0.98 kg / 2.15 pounds 975.0 g / 9.6 N
5 mm	100%	1.30 kg / 2.87 pounds 1300.0 g / 12.8 N
10 mm	100%	1.30 kg / 2.87 pounds 1300.0 g / 12.8 N
11 mm	100%	1.30 kg / 2.87 pounds 1300.0 g / 12.8 N
12 mm	100%	1.30 kg / 2.87 pounds 1300.0 g / 12.8 N

A thin sheet cannot absorb the entire magnetic field, which weakens actual performance of the holder. If you attach a powerful product to a thin surface, the flux will penetrate right through and the attraction force will be weaker. To achieve the maximum of this magnet's potential, you need a suitably thick piece of steel. The saturation effect means that on delicate walls (e.g., appliance housings), the holder shows lower pull force. We recommend selecting the steel thickness according to the table below.

Table 5: Working in heat (stability) - power drop
MW 8x20 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	1.30 kg / 2.87 pounds 1300.0 g / 12.8 N	OK
40 °C	-2.2%	1.27 kg / 2.80 pounds 1271.4 g / 12.5 N	OK
60 °C	-4.4%	1.24 kg / 2.74 pounds 1242.8 g / 12.2 N	OK
80 °C	-6.6%	1.21 kg / 2.68 pounds 1214.2 g / 11.9 N
100 °C	-28.8%	0.93 kg / 2.04 pounds 925.6 g / 9.1 N

Classic neodymiums change their properties strength after exceeding the maximum temperature. Avoid high temperatures – high temperature can irreversibly destroy this product. With every degree above norm, the magnet's force momentarily lowers. Avoid using this product close to heaters exceeding its operating temperature limit. Ignoring the limit will result in irreversible degradation of magnetism.

*Important note: Temperature resistance depends not only on the material grade, as well as the dimension ratios. Flat magnets (low permeance coefficient) are more susceptible to demagnetization under lower heat stress compared to rod magnets. Warning indicator in the table points to a risk of irreversible loss for this particular item.

Table 6: Two magnets (attraction) - forces in the system
MW 8x20 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Strength (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	11.40 kg / 25.12 pounds 6 154 Gs	1.71 kg / 3.77 pounds 1709 g / 16.8 N	N/A
1 mm	8.76 kg / 19.31 pounds 10 632 Gs	1.31 kg / 2.90 pounds 1314 g / 12.9 N	7.88 kg / 17.38 pounds ~0 Gs
2 mm	6.52 kg / 14.37 pounds 9 174 Gs	0.98 kg / 2.16 pounds 978 g / 9.6 N	5.87 kg / 12.94 pounds ~0 Gs
3 mm	4.76 kg / 10.49 pounds 7 837 Gs	0.71 kg / 1.57 pounds 714 g / 7.0 N	4.28 kg / 9.44 pounds ~0 Gs
5 mm	2.46 kg / 5.43 pounds 5 637 Gs	0.37 kg / 0.81 pounds 369 g / 3.6 N	2.22 kg / 4.88 pounds ~0 Gs
10 mm	0.51 kg / 1.12 pounds 2 561 Gs	0.08 kg / 0.17 pounds 76 g / 0.7 N	0.46 kg / 1.01 pounds ~0 Gs
20 mm	0.05 kg / 0.10 pounds 778 Gs	0.01 kg / 0.02 pounds 7 g / 0.1 N	0.04 kg / 0.09 pounds ~0 Gs
50 mm	0.00 kg / 0.00 pounds 107 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
60 mm	0.00 kg / 0.00 pounds 69 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
70 mm	0.00 kg / 0.00 pounds 48 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
80 mm	0.00 kg / 0.00 pounds 34 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
90 mm	0.00 kg / 0.00 pounds 25 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 19 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs

Two strong neodymiums attract each other from a much further distance than a neodymium and metal setup. The connection of two magnets generates a stronger field and a wider radius of performance. Designing a solid fastener? Apply two magnets instead of a neodymium and a steel. Remember that when attracting two neodymiums, the collision energy is massive. The repulsion force is marginally weaker than the attraction, but still large.
*The magnetic induction in repulsion mode is approximately ~0 Gs at the geometric center of the gap (caused by magnetic field nullification).
Note: Figures demonstrate friction force of a pair of matching neodymium magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Hazards (implants) - warnings
MW 8x20 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	6.5 cm
Hearing aid	10 Gs (1.0 mT)	5.0 cm
Mechanical watch	20 Gs (2.0 mT)	4.0 cm
Phone / Smartphone	40 Gs (4.0 mT)	3.0 cm
Car key	50 Gs (5.0 mT)	3.0 cm
Payment card	400 Gs (40.0 mT)	1.0 cm
HDD hard drive	600 Gs (60.0 mT)	1.0 cm

Extremely neodym field is a serious hazard to electronic devices and pacemakers. These neodymiums generate a flux that destroys function of digital equipment. Be aware: the unseen radiation passes through tissues and housings. Special caution must be taken by people with cochlear implants and insulin pumps. Also at risk are: automatic timepieces, car keys, speakers, and displays. Do not bring the product near payment cards, hard drives, or precise measuring instruments.

Table 8: Dynamics (cracking risk) - warning
MW 8x20 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	13.28 km/h (3.69 m/s)	0.05 J
30 mm	22.94 km/h (6.37 m/s)	0.15 J
50 mm	29.61 km/h (8.23 m/s)	0.26 J
100 mm	41.88 km/h (11.63 m/s)	0.51 J

Magnetic elements are delicate – a collision with steel risks their cracking. Watch the impact speed – a neodymium left loose speeds with massive force. Striking energy can trigger coating fragments or injury to skin. Hold the magnet firmly during mounting so it doesn't hit with great force against the steel surface. A collision at high speed almost guarantees destruction of the neodymium. Wear eye protection when playing with powerful specimens.

Table 9: Corrosion resistance
MW 8x20 / 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 SST (salt spray test) is an industry standard for determining coating lifespan in harsh conditions. Note the thickness of the protective layer.

Table 10: Electrical data (P_c)
MW 8x20 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	3 457 Mx	34.6 µWb
P_c Coefficient	1.31	High (Stable)

Flux value emitted by the pole surface. Essential parameter in coil applications as well as sensors. P_c value determines the magnet's operating point.

Table 11: Physics of underwater searching
MW 8x20 / N38

Environment	Effective steel pull	Effect
Air (land)	1.30 kg	Standard
Water (riverbed)	1.49 kg (+0.19 kg buoyancy gain)	+14.5%

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

Water displaces steel, making heavy objects slightly lighter. 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)

*Caution: On a vertical surface, the magnet retains just approx. 20-30% of its perpendicular strength.

2. Plate thickness effect

*Thin metal sheet (e.g. 0.5mm PC 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) = 1.31

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

Elemental analysis

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%

Sustainability

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: 010475-2026

Measurement Calculator

Magnet pull force

Newtons (N)

Force in lbs

Magnetic Induction

Gauss (Gs)

Induction (T)

Input a figure in a single field to get results in the other units at once.

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The offered product is an incredibly powerful cylinder magnet, composed of advanced NdFeB material, which, at dimensions of Ø8x20 mm, guarantees optimal power. The MW 8x20 / N38 component features an accuracy of ±0.1mm and professional build quality, making it an ideal solution for the most demanding engineers and designers. As a magnetic rod with significant force (approx. 1.30 kg), this product is in stock from our warehouse in Poland, ensuring quick order fulfillment. Additionally, its Ni-Cu-Ni coating effectively protects it against corrosion in standard operating conditions, guaranteeing an aesthetic appearance and durability for years.

It successfully proves itself in DIY projects, advanced automation, and broadly understood industry, serving as a fastening or actuating element. Thanks to the pull force of 12.71 N with a weight of only 7.54 g, this rod 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 immediate cracking of this professional component. To ensure stability in automation, specialized industrial adhesives are used, which are safe for nickel and fill the gap, guaranteeing high repeatability of the connection.

Magnets NdFeB grade N38 are suitable for the majority of applications in modeling and machine building, where excessive miniaturization with maximum force is not required. If you need the strongest magnets in the same volume (Ø8x20), 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 Ø8x20 mm, which, at a weight of 7.54 g, makes it an element with impressive magnetic energy density. The key parameter here is the holding force amounting to approximately 1.30 kg (force ~12.71 N), which, with such defined dimensions, proves the high grade of the NdFeB material. The product has a [NiCuNi] coating, which protects the surface against oxidation, giving it an aesthetic, silvery shine.

Standardly, the magnetic axis runs through the center of the cylinder, causing the greatest attraction force to occur on the bases with a diameter of 8 mm. Such an arrangement is standard when connecting magnets in stacks (e.g., in filters) or when mounting in sockets at the bottom of a hole. On request, we can also produce versions magnetized through the diameter if your project requires it.

Advantages as well as disadvantages of Nd₂Fe₁₄B magnets.

Strengths

Besides their durability, neodymium magnets are valued for these benefits:

Their strength is maintained, and after approximately ten years it decreases only by ~1% (according to research),
Neodymium magnets are extremely resistant to demagnetization caused by external field sources,
Thanks to the shimmering finish, the plating of Ni-Cu-Ni, gold, or silver gives an aesthetic appearance,
Magnetic induction on the working part of the magnet remains extremely intense,
Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the form) even at high temperatures reaching 230°C or more...
Possibility of individual machining and adapting to precise conditions,
Versatile presence in electronics industry – they are utilized in magnetic memories, electric drive systems, advanced medical instruments, and other advanced devices.
Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in tiny dimensions, which enables their usage in small systems

Disadvantages

Problematic aspects of neodymium magnets: weaknesses and usage proposals

At very strong impacts they can crack, therefore we recommend placing them in special holders. A metal housing provides additional protection against damage and increases the magnet's durability.
Neodymium magnets lose strength when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of power (a factor is the shape as well as 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
Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material immune to moisture, when using outdoors
Due to limitations in realizing nuts and complicated shapes in magnets, we propose using casing - magnetic mount.
Possible danger related to microscopic parts of magnets are risky, when accidentally swallowed, which becomes key in the context of child health protection. Additionally, small components of these devices are able to complicate diagnosis medical in case of swallowing.
With mass production the cost of neodymium magnets can be a barrier,

Holding force characteristics

Optimal lifting capacity of a neodymium magnet – what it depends on?

The specified lifting capacity represents the limit force, measured under ideal test conditions, namely:

on a base made of structural steel, optimally conducting the magnetic field
possessing a thickness of min. 10 mm to avoid saturation
characterized by smoothness
with total lack of distance (without coatings)
during pulling in a direction perpendicular to the mounting surface
at ambient temperature approx. 20 degrees Celsius

Determinants of lifting force in real conditions

In real-world applications, the real power depends on a number of factors, listed from the most important:

Gap between surfaces – every millimeter of separation (caused e.g. by veneer or dirt) diminishes the pulling force, often by half at just 0.5 mm.
Loading method – catalog parameter refers to detachment vertically. When applying parallel force, the magnet exhibits significantly lower power (typically approx. 20-30% of maximum force).
Element thickness – to utilize 100% power, the steel must be adequately massive. Paper-thin metal restricts the attraction force (the magnet "punches through" it).
Steel grade – ideal substrate is pure iron steel. Cast iron may generate lower lifting capacity.
Surface finish – ideal contact is obtained only on polished steel. Any scratches and bumps create air cushions, weakening the magnet.
Thermal conditions – NdFeB sinters have a negative temperature coefficient. At higher temperatures they are weaker, and at low temperatures gain strength (up to a certain limit).

Lifting capacity testing was performed on a smooth plate of suitable thickness, under a perpendicular pulling force, whereas under parallel forces the load capacity is reduced by as much as 75%. In addition, even a small distance between the magnet and the plate reduces the load capacity.

Safe handling of neodymium magnets

Shattering risk

NdFeB magnets are ceramic materials, meaning they are fragile like glass. Impact of two magnets leads to them breaking into shards.

Electronic devices

Avoid bringing magnets close to a purse, computer, or TV. The magnetic field can destroy these devices and erase data from cards.

Nickel allergy

Medical facts indicate that nickel (the usual finish) is a strong allergen. If your skin reacts to metals, prevent direct skin contact and choose coated magnets.

Finger safety

Big blocks can crush fingers instantly. Never place your hand between two strong magnets.

Life threat

Life threat: Strong magnets can deactivate pacemakers and defibrillators. Stay away if you have electronic implants.

Fire warning

Powder created during machining of magnets is self-igniting. Do not drill into magnets unless you are an expert.

Heat warning

Standard neodymium magnets (grade N) lose power when the temperature surpasses 80°C. Damage is permanent.

Respect the power

Use magnets consciously. Their powerful strength can surprise even experienced users. Stay alert and respect their power.

Phone sensors

A powerful magnetic field negatively affects the operation of compasses in smartphones and GPS navigation. Maintain magnets close to a smartphone to avoid damaging the sensors.

Choking Hazard

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

Security! Need more info? Check our post: Are neodymium magnets dangerous?

MW 8x20 / N38 - cylindrical magnet

Detailed specification - MW 8x20 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering simulation of the product - report

Table 1: Static force (force vs gap) - power drop MW 8x20 / N38

Table 2: Slippage force (wall) MW 8x20 / N38

Table 3: Wall mounting (sliding) - vertical pull MW 8x20 / N38

Table 4: Material efficiency (substrate influence) - sheet metal selection MW 8x20 / N38

Table 5: Working in heat (stability) - power drop MW 8x20 / N38

Table 6: Two magnets (attraction) - forces in the system MW 8x20 / N38

Table 7: Hazards (implants) - warnings MW 8x20 / N38

Table 8: Dynamics (cracking risk) - warning MW 8x20 / N38

Table 9: Corrosion resistance MW 8x20 / N38

Table 10: Electrical data (Pc) MW 8x20 / N38

Table 11: Physics of underwater searching MW 8x20 / N38

1. Wall mount (shear)

2. Plate thickness effect

3. Temperature resistance

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

Elemental analysis

Sustainability

Magnet pull force

Magnetic Induction

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Advantages as well as disadvantages of Nd2Fe14B magnets.

Strengths

Disadvantages

Holding force characteristics

Optimal lifting capacity of a neodymium magnet – what it depends on?

Determinants of lifting force in real conditions

Safe handling of neodymium magnets

Shattering risk

Electronic devices

Nickel allergy

Finger safety

Life threat

Fire warning

Heat warning

Respect the power

Phone sensors

Choking Hazard

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs gap) - power drop
MW 8x20 / N38

Table 2: Slippage force (wall)
MW 8x20 / N38

Table 3: Wall mounting (sliding) - vertical pull
MW 8x20 / N38

Table 4: Material efficiency (substrate influence) - sheet metal selection
MW 8x20 / N38

Table 5: Working in heat (stability) - power drop
MW 8x20 / N38

Table 6: Two magnets (attraction) - forces in the system
MW 8x20 / N38

Table 7: Hazards (implants) - warnings
MW 8x20 / N38

Table 8: Dynamics (cracking risk) - warning
MW 8x20 / N38

Table 9: Corrosion resistance
MW 8x20 / N38

Table 10: Electrical data (P_c)
MW 8x20 / N38

Table 11: Physics of underwater searching
MW 8x20 / N38

Advantages as well as disadvantages of Nd₂Fe₁₄B magnets.