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MW 20x1.5 / 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 010039

GTIN/EAN: 5906301810384

5.00

Diameter Ø

20 mm [±0,1 mm]

Height

1.5 mm [±0,1 mm]

Weight

3.53 g

Magnetization Direction

↑ axial

Load capacity

0.97 kg / 9.50 N

Magnetic Induction

91.96 mT / 920 Gs

Coating

[NiCuNi] Nickel

technical specifications »

1.574 ZŁ with VAT / pcs + price for transport

1.280 ZŁ net + 23% VAT / pcs

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Physical properties - MW 20x1.5 / N38 - cylindrical magnet

Specification / characteristics - MW 20x1.5 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010039
GTIN/EAN	5906301810384
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	20 mm [±0,1 mm]
Height	1.5 mm [±0,1 mm]
Weight	3.53 g
Magnetization Direction	↑ axial
Load capacity ~ ?	0.97 kg / 9.50 N
Magnetic Induction ~ ?	91.96 mT / 920 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 20x1.5 / 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 analysis of the product - data

Presented information represent the outcome of a engineering simulation. Results rely on algorithms for the class Nd₂Fe₁₄B. Operational conditions may deviate from the simulation results. Please consider these calculations as a reference point when designing systems.

Table 1: Static pull force (force vs gap) - power drop
MW 20x1.5 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	920 Gs 92.0 mT	0.97 kg / 2.14 LBS 970.0 g / 9.5 N	weak grip
1 mm	887 Gs 88.7 mT	0.90 kg / 1.99 LBS 902.2 g / 8.9 N	weak grip
2 mm	832 Gs 83.2 mT	0.79 kg / 1.75 LBS 794.6 g / 7.8 N	weak grip
3 mm	763 Gs 76.3 mT	0.67 kg / 1.47 LBS 667.4 g / 6.5 N	weak grip
5 mm	606 Gs 60.6 mT	0.42 kg / 0.93 LBS 421.6 g / 4.1 N	weak grip
10 mm	294 Gs 29.4 mT	0.10 kg / 0.22 LBS 99.5 g / 1.0 N	weak grip
15 mm	144 Gs 14.4 mT	0.02 kg / 0.05 LBS 23.6 g / 0.2 N	weak grip
20 mm	76 Gs 7.6 mT	0.01 kg / 0.01 LBS 6.7 g / 0.1 N	weak grip
30 mm	28 Gs 2.8 mT	0.00 kg / 0.00 LBS 0.9 g / 0.0 N	weak grip
50 mm	7 Gs 0.7 mT	0.00 kg / 0.00 LBS 0.1 g / 0.0 N	weak grip

Pulling power decreases drastically with every subsequent millimeter of gap. Note that even the smallest gap (e.g., contamination, varnish, dust) noticeably reduces the pull force. Magnetic products work optimally during direct contact; distance kills the force. Notice how flashily the parameters drop, when the magnet does not adhere flatly to the steel surface. When planning the arrangement, eliminate redundant distances.

Table 2: Sliding load (vertical surface)
MW 20x1.5 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.19 kg / 0.43 LBS 194.0 g / 1.9 N
1 mm	Stal (~0.2)	0.18 kg / 0.40 LBS 180.0 g / 1.8 N
2 mm	Stal (~0.2)	0.16 kg / 0.35 LBS 158.0 g / 1.5 N
3 mm	Stal (~0.2)	0.13 kg / 0.30 LBS 134.0 g / 1.3 N
5 mm	Stal (~0.2)	0.08 kg / 0.19 LBS 84.0 g / 0.8 N
10 mm	Stal (~0.2)	0.02 kg / 0.04 LBS 20.0 g / 0.2 N
15 mm	Stal (~0.2)	0.00 kg / 0.01 LBS 4.0 g / 0.0 N
20 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 2.0 g / 0.0 N
30 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 0.0 g / 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 0.0 g / 0.0 N

The following data defines the approximate weight limit sufficient to start the sliding of the magnet downwards against a vertical metal surface (assuming typical friction coefficient). The holding force is a function of the distance between the magnet and the surface.

Table 3: Wall mounting (sliding) - vertical pull
MW 20x1.5 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.29 kg / 0.64 LBS 291.0 g / 2.9 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.19 kg / 0.43 LBS 194.0 g / 1.9 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.10 kg / 0.21 LBS 97.0 g / 1.0 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.49 kg / 1.07 LBS 485.0 g / 4.8 N

When placing a element on a vertical wall (e.g., a board), it you can count on barely approx. 1/5 of its nominal power. Gravity as well as a weak degree of grip cause that products slide down easier than they pull off. Planning a vertical fastening? Note that the sliding force is noticeably lower than the perpendicular breakaway force. On a smooth steel, the holder will slip down under a significantly smaller load. Using a rubber coating can effectively increase the grip.

Table 4: Steel thickness (substrate influence) - sheet metal selection
MW 20x1.5 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.10 kg / 0.21 LBS 97.0 g / 1.0 N
1 mm	25%	0.24 kg / 0.53 LBS 242.5 g / 2.4 N
2 mm	50%	0.49 kg / 1.07 LBS 485.0 g / 4.8 N
3 mm	75%	0.73 kg / 1.60 LBS 727.5 g / 7.1 N
5 mm	100%	0.97 kg / 2.14 LBS 970.0 g / 9.5 N
10 mm	100%	0.97 kg / 2.14 LBS 970.0 g / 9.5 N
11 mm	100%	0.97 kg / 2.14 LBS 970.0 g / 9.5 N
12 mm	100%	0.97 kg / 2.14 LBS 970.0 g / 9.5 N

A thin sheet is not enough to absorb the entire magnetic field, which wastes potential of the magnet. Should you mount a strong magnet to a too thin substrate, the flux will pass right through and the holding will be smaller. To squeeze 100% of this neodymium's power, you require a sufficiently solid piece of metal. The saturation phenomenon means that on sheet metal structures (e.g., appliance housings), the product works worse. We advise picking the steel dimension based on the following data.

Table 5: Thermal resistance (stability) - thermal limit
MW 20x1.5 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	0.97 kg / 2.14 LBS 970.0 g / 9.5 N	OK
40 °C	-2.2%	0.95 kg / 2.09 LBS 948.7 g / 9.3 N	OK
60 °C	-4.4%	0.93 kg / 2.04 LBS 927.3 g / 9.1 N
80 °C	-6.6%	0.91 kg / 2.00 LBS 906.0 g / 8.9 N
100 °C	-28.8%	0.69 kg / 1.52 LBS 690.6 g / 6.8 N

Ordinary NdFeB products irreversibly lose strength above the temperature limit. Protect against heat – excessive heat can permanently destroy this product. With increasing heat, the magnet's capacity briefly drops. Refrain from using this product close to ovens exceeding its working range. Exceeding the critical threshold will lead to permanent loss of magnetism.

*Engineering note: Heat tolerance is determined by both grade, but also on the magnet's shape. Thin magnets (low permeance coefficient) risk losing magnetic properties sooner than long magnets. Warning indicator in the table signals permanent field degradation for this specific geometry.

Table 6: Magnet-Magnet interaction (repulsion) - field range
MW 20x1.5 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Sliding Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	1.64 kg / 3.61 LBS 1 781 Gs	0.25 kg / 0.54 LBS 246 g / 2.4 N	N/A
1 mm	1.59 kg / 3.51 LBS 1 813 Gs	0.24 kg / 0.53 LBS 239 g / 2.3 N	1.43 kg / 3.16 LBS ~0 Gs
2 mm	1.52 kg / 3.36 LBS 1 774 Gs	0.23 kg / 0.50 LBS 228 g / 2.2 N	1.37 kg / 3.02 LBS ~0 Gs
3 mm	1.44 kg / 3.17 LBS 1 724 Gs	0.22 kg / 0.48 LBS 216 g / 2.1 N	1.29 kg / 2.85 LBS ~0 Gs
5 mm	1.24 kg / 2.73 LBS 1 598 Gs	0.19 kg / 0.41 LBS 185 g / 1.8 N	1.11 kg / 2.45 LBS ~0 Gs
10 mm	0.71 kg / 1.57 LBS 1 212 Gs	0.11 kg / 0.24 LBS 107 g / 1.0 N	0.64 kg / 1.41 LBS ~0 Gs
20 mm	0.17 kg / 0.37 LBS 589 Gs	0.03 kg / 0.06 LBS 25 g / 0.2 N	0.15 kg / 0.33 LBS ~0 Gs
50 mm	0.00 kg / 0.01 LBS 88 Gs	0.00 kg / 0.00 LBS 1 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
60 mm	0.00 kg / 0.00 LBS 55 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
70 mm	0.00 kg / 0.00 LBS 36 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
80 mm	0.00 kg / 0.00 LBS 25 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
90 mm	0.00 kg / 0.00 LBS 18 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
100 mm	0.00 kg / 0.00 LBS 13 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs

Two magnetic products interact from a significantly greater distance than a magnet and sheet combination. The setup of two magnets produces a massive flux and a larger range of operation. Planning to create a strong closure? Utilize two neodymiums instead of one magnet and a steel. Exercise caution that when attracting two neodymiums, the impact force is extreme. The levitation is marginally weaker than the attraction, but still large.
*Flux density between like poles reaches ~0 Gs in the exact middle between the magnets (caused by magnetic field nullification).
* Figures refer to shear force of dual identical magnets (friction coefficient ~0.15 for Ni-Ni plating).

Table 7: Hazards (implants) - warnings
MW 20x1.5 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	6.0 cm
Hearing aid	10 Gs (1.0 mT)	4.5 cm
Mechanical watch	20 Gs (2.0 mT)	3.5 cm
Mobile device	40 Gs (4.0 mT)	3.0 cm
Car key	50 Gs (5.0 mT)	2.5 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 poses a real danger to electronic devices as well as medical implants. These magnets generate a field that disrupts operation of digital equipment. Be aware: the invisible magnetic field acts through matter and glass. Increased vigilance must be taken by people with hearing aids and drug dispensers. Also at risk are: automatic timepieces, car keys, speakers, and screens. Do not bring the product near payment cards, HDD media, or sensitive navigation tools.

Table 8: Impact energy (kinetic energy) - warning
MW 20x1.5 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	17.76 km/h (4.93 m/s)	0.04 J
30 mm	28.97 km/h (8.05 m/s)	0.11 J
50 mm	37.38 km/h (10.38 m/s)	0.19 J
100 mm	52.87 km/h (14.69 m/s)	0.38 J

NdFeB products are very brittle – a violent impact against metal can result in shattering. Control the attraction moment – a magnet released freely becomes dangerous. Impact energy can cause material chips or injury to skin. Be sure to control the product during installation so it doesn't hit violently against the metal. A collision at high speed ends with a crack of the magnet. Use safety goggles when handling with powerful specimens.

Table 9: Corrosion resistance
MW 20x1.5 / 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: Construction data (Flux)
MW 20x1.5 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	3 979 Mx	39.8 µWb
P_c Coefficient	0.12	Low (Flat)

Flux value emitted by the pole surface. Key data when building generators as well as sensors. P_c value determines the working geometry.

Table 11: Submerged application
MW 20x1.5 / N38

Environment	Effective steel pull	Effect
Air (land)	0.97 kg	Standard
Water (riverbed)	1.11 kg (+0.14 kg buoyancy gain)	+14.5%

Corrosion warning: 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. Vertical hold

*Note: On a vertical wall, the magnet holds merely approx. 20-30% of its nominal pull.

2. Steel saturation

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

3. Power loss vs temp

*For standard magnets, 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) = 0.12

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.

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%

Environmental data

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: 010039-2026

Magnet Unit Converter

Force (pull)

Kilograms (kg)

Force (N)

Force in lbs

Magnetic Induction

Induction (Gs)

Simply fill in any input, to let the converter fill in the rest for you.

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MW 29x10 / N38 - cylindrical magnet

17.34 ZŁ brutto / pcs

The offered product is a very strong cylinder magnet, composed of modern NdFeB material, which, at dimensions of Ø20x1.5 mm, guarantees the highest energy density. This specific item boasts a tolerance of ±0.1mm and professional build quality, making it an ideal solution for the most demanding engineers and designers. As a cylindrical magnet with impressive force (approx. 0.97 kg), this product is available off-the-shelf from our warehouse in Poland, ensuring lightning-fast order fulfillment. Additionally, its triple-layer Ni-Cu-Ni coating shields it against corrosion in standard operating conditions, guaranteeing an aesthetic appearance and durability for years.

It finds application in modeling, advanced robotics, and broadly understood industry, serving as a positioning or actuating element. Thanks to the pull force of 9.50 N with a weight of only 3.53 g, this rod is indispensable in miniature devices and wherever low weight is crucial.

Since our magnets have a very precise dimensions, the recommended way is to glue them into holes with a slightly larger diameter (e.g., 20.1 mm) using epoxy glues. To ensure long-term durability in automation, specialized industrial adhesives are used, which do not react with the nickel coating and fill the gap, guaranteeing durability of the connection.

Magnets NdFeB grade N38 are strong enough for 90% of applications in automation and machine building, where extreme miniaturization with maximum force is not required. If you need even stronger magnets in the same volume (Ø20x1.5), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our warehouse.

This model is characterized by dimensions Ø20x1.5 mm, which, at a weight of 3.53 g, makes it an element with impressive magnetic energy density. The value of 9.50 N means that the magnet is capable of holding a weight many times exceeding its own mass of 3.53 g. 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 1.5 mm), which means that the N and S poles are located on the flat, circular surfaces. Such an arrangement is most desirable 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 rare earth magnets.

Advantages

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

They retain attractive force for around 10 years – the drop is just ~1% (in theory),
They are resistant to demagnetization induced by presence of other magnetic fields,
The use of an shiny coating of noble metals (nickel, gold, silver) causes the element to look better,
Neodymium magnets achieve maximum magnetic induction on a contact point, which allows for strong attraction,
Neodymium magnets are characterized by very high magnetic induction on the magnet surface and are able to act (depending on the form) even at a temperature of 230°C or more...
In view of the possibility of free forming and adaptation to unique projects, NdFeB magnets can be created in a variety of geometric configurations, which expands the range of possible applications,
Huge importance in future technologies – they are utilized in data components, electric drive systems, medical devices, and multitasking production systems.
Relatively small size with high pulling force – neodymium magnets offer high power in tiny dimensions, which makes them useful in small systems

Limitations

Disadvantages of NdFeB magnets:

At very strong impacts they can break, therefore we recommend placing them in steel cases. A metal housing provides additional protection against damage and increases the magnet's durability.
Neodymium magnets lose power when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of strength (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 very resistant to heat
They oxidize in a humid environment. For use outdoors we advise using waterproof magnets e.g. in rubber, plastic
Due to limitations in producing threads and complex shapes in magnets, we recommend using cover - magnetic holder.
Potential hazard to health – tiny shards of magnets pose a threat, in case of ingestion, which is particularly important in the context of child health protection. Furthermore, small components of these devices can disrupt the diagnostic process medical after entering the body.
Due to complex production process, their price exceeds standard values,

Holding force characteristics

Breakaway strength of the magnet in ideal conditions – what contributes to it?

The specified lifting capacity represents the peak performance, obtained under optimal environment, namely:

on a plate made of structural steel, optimally conducting the magnetic flux
possessing a thickness of min. 10 mm to ensure full flux closure
characterized by lack of roughness
without the slightest insulating layer between the magnet and steel
under axial force vector (90-degree angle)
at temperature room level

Key elements affecting lifting force

Please note that the magnet holding will differ subject to elements below, in order of importance:

Distance (between the magnet and the metal), because even a very small clearance (e.g. 0.5 mm) can cause a reduction in lifting capacity by up to 50% (this also applies to varnish, rust or dirt).
Loading method – catalog parameter refers to detachment vertically. When attempting to slide, the magnet exhibits significantly lower power (often approx. 20-30% of maximum force).
Metal thickness – thin material does not allow full use of the magnet. Part of the magnetic field penetrates through instead of converting into lifting capacity.
Material type – the best choice is high-permeability steel. Hardened steels may attract less.
Surface finish – full contact is possible only on smooth steel. Rough texture reduce the real contact area, weakening the magnet.
Temperature – temperature increase causes a temporary drop of induction. It is worth remembering the maximum operating temperature for a given model.

Lifting capacity was assessed with the use of a polished steel plate of optimal thickness (min. 20 mm), under vertically applied force, however under parallel forces the holding force is lower. Moreover, even a small distance between the magnet and the plate lowers the holding force.

Precautions when working with NdFeB magnets

Magnetic interference

A powerful magnetic field negatively affects the operation of magnetometers in smartphones and GPS navigation. Keep magnets close to a device to avoid breaking the sensors.

Safe distance

Do not bring magnets near a purse, computer, or TV. The magnetism can permanently damage these devices and erase data from cards.

Do not give to children

Always store magnets away from children. Risk of swallowing is high, and the consequences of magnets clamping inside the body are tragic.

Heat warning

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

Combustion hazard

Combustion risk: Rare earth powder is explosive. Do not process magnets in home conditions as this risks ignition.

Metal Allergy

A percentage of the population experience a hypersensitivity to nickel, which is the standard coating for NdFeB magnets. Prolonged contact can result in dermatitis. We recommend use protective gloves.

Eye protection

NdFeB magnets are ceramic materials, meaning they are prone to chipping. Impact of two magnets will cause them shattering into small pieces.

Respect the power

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

Pinching danger

Big blocks can smash fingers in a fraction of a second. Never put your hand between two strong magnets.

Danger to pacemakers

Medical warning: Neodymium magnets can turn off pacemakers and defibrillators. Stay away if you have medical devices.

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

MW 20x1.5 / N38 - cylindrical magnet

Physical properties - MW 20x1.5 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering analysis of the product - data

Table 1: Static pull force (force vs gap) - power drop MW 20x1.5 / N38

Table 2: Sliding load (vertical surface) MW 20x1.5 / N38

Table 3: Wall mounting (sliding) - vertical pull MW 20x1.5 / N38

Table 4: Steel thickness (substrate influence) - sheet metal selection MW 20x1.5 / N38

Table 5: Thermal resistance (stability) - thermal limit MW 20x1.5 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field range MW 20x1.5 / N38

Table 7: Hazards (implants) - warnings MW 20x1.5 / N38

Table 8: Impact energy (kinetic energy) - warning MW 20x1.5 / N38

Table 9: Corrosion resistance MW 20x1.5 / N38

Table 10: Construction data (Flux) MW 20x1.5 / N38

Table 11: Submerged application MW 20x1.5 / N38

1. Vertical hold

2. Steel saturation

3. Power loss vs temp

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

Material specification

Environmental data

Force (pull)

Magnetic Induction

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MW 29x10 / N38 - cylindrical magnet

Advantages as well as disadvantages of rare earth magnets.

Advantages

Limitations

Holding force characteristics

Breakaway strength of the magnet in ideal conditions – what contributes to it?

Key elements affecting lifting force

Precautions when working with NdFeB magnets

Magnetic interference

Safe distance

Do not give to children

Heat warning

Combustion hazard

Metal Allergy

Eye protection

Respect the power

Pinching danger

Danger to pacemakers

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs gap) - power drop
MW 20x1.5 / N38

Table 2: Sliding load (vertical surface)
MW 20x1.5 / N38

Table 3: Wall mounting (sliding) - vertical pull
MW 20x1.5 / N38

Table 4: Steel thickness (substrate influence) - sheet metal selection
MW 20x1.5 / N38

Table 5: Thermal resistance (stability) - thermal limit
MW 20x1.5 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field range
MW 20x1.5 / N38

Table 7: Hazards (implants) - warnings
MW 20x1.5 / N38

Table 8: Impact energy (kinetic energy) - warning
MW 20x1.5 / N38

Table 9: Corrosion resistance
MW 20x1.5 / N38

Table 10: Construction data (Flux)
MW 20x1.5 / N38

Table 11: Submerged application
MW 20x1.5 / N38