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MW 12x50 / N38 - cylindrical magnet

Name: Dhit sp. z o.o.
Address: Kościuszki 6A, Ożarów Mazowiecki, mazowieckie, 05-850, PL
Telephone: +48 22 499 98 98
Price range: 1-6500 PLN
Rating: 5

cylindrical magnet

Catalog no 010020

GTIN/EAN: 5906301810193

5.00

Diameter Ø

12 mm [±0,1 mm]

Height

50 mm [±0,1 mm]

Weight

42.41 g

Magnetization Direction

↑ axial

Load capacity

2.62 kg / 25.73 N

Magnetic Induction

614.94 mT / 6149 Gs

Coating

[NiCuNi] Nickel

check technical data »

28.29 ZŁ with VAT / pcs + price for transport

23.00 ZŁ net + 23% VAT / pcs

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Product card - MW 12x50 / N38 - cylindrical magnet

Specification / characteristics - MW 12x50 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010020
GTIN/EAN	5906301810193
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	12 mm [±0,1 mm]
Height	50 mm [±0,1 mm]
Weight	42.41 g
Magnetization Direction	↑ axial
Load capacity ~ ?	2.62 kg / 25.73 N
Magnetic Induction ~ ?	614.94 mT / 6149 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 12x50 / 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 magnet - data

The following information are the direct effect of a physical simulation. Values were calculated on algorithms for the class Nd₂Fe₁₄B. Real-world conditions may deviate from the simulation results. Treat these data as a reference point during assembly planning.

Table 1: Static pull force (pull vs distance) - power drop
MW 12x50 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	6146 Gs 614.6 mT	2.62 kg / 5.78 LBS 2620.0 g / 25.7 N	strong
1 mm	5138 Gs 513.8 mT	1.83 kg / 4.04 LBS 1831.5 g / 18.0 N	weak grip
2 mm	4199 Gs 419.9 mT	1.22 kg / 2.70 LBS 1222.9 g / 12.0 N	weak grip
3 mm	3388 Gs 338.8 mT	0.80 kg / 1.76 LBS 796.3 g / 7.8 N	weak grip
5 mm	2194 Gs 219.4 mT	0.33 kg / 0.74 LBS 334.0 g / 3.3 N	weak grip
10 mm	853 Gs 85.3 mT	0.05 kg / 0.11 LBS 50.4 g / 0.5 N	weak grip
15 mm	417 Gs 41.7 mT	0.01 kg / 0.03 LBS 12.1 g / 0.1 N	weak grip
20 mm	239 Gs 23.9 mT	0.00 kg / 0.01 LBS 4.0 g / 0.0 N	weak grip
30 mm	103 Gs 10.3 mT	0.00 kg / 0.00 LBS 0.7 g / 0.0 N	weak grip
50 mm	33 Gs 3.3 mT	0.00 kg / 0.00 LBS 0.1 g / 0.0 N	weak grip

Pulling power weakens significantly per each millimeter of distance. Note that even a microscopic distance (e.g., dirt, paint, veneer) strongly reduces the pull force. Neodymiums hold strongest during direct contact; air break nullifies the power. See how quickly the pull force plummet, when the magnet does not touch tightly to the steel surface. When planning the mounting, discard additional spacers.

Table 2: Slippage load (vertical surface)
MW 12x50 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.52 kg / 1.16 LBS 524.0 g / 5.1 N
1 mm	Stal (~0.2)	0.37 kg / 0.81 LBS 366.0 g / 3.6 N
2 mm	Stal (~0.2)	0.24 kg / 0.54 LBS 244.0 g / 2.4 N
3 mm	Stal (~0.2)	0.16 kg / 0.35 LBS 160.0 g / 1.6 N
5 mm	Stal (~0.2)	0.07 kg / 0.15 LBS 66.0 g / 0.6 N
10 mm	Stal (~0.2)	0.01 kg / 0.02 LBS 10.0 g / 0.1 N
15 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 2.0 g / 0.0 N
20 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 0.0 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 table below indicates the approximate shear load sufficient to initiate the downward movement of the magnet vertically against a upright steel wall (assuming standard friction coefficient). This parameter is relative to the separation distance between the magnet and the surface.

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MW 12x50 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.79 kg / 1.73 LBS 786.0 g / 7.7 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.52 kg / 1.16 LBS 524.0 g / 5.1 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.26 kg / 0.58 LBS 262.0 g / 2.6 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	1.31 kg / 2.89 LBS 1310.0 g / 12.9 N

When mounting a element on a vertical plane (e.g., a car body), it will maintain only approx. 20%-30% of nominal attraction strength. Gravitational force and a weak degree of grip cause that holders slide down faster than they pop off the substrate. Designing a vertical fastening? Consider that the shear force is noticeably lower than the maximum static pull force. On a smooth steel, the magnet will slip down under a noticeably lighter weight. Using a rubber pad can effectively improve the result.

Table 4: Steel thickness (saturation) - power losses
MW 12x50 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.26 kg / 0.58 LBS 262.0 g / 2.6 N
1 mm	25%	0.66 kg / 1.44 LBS 655.0 g / 6.4 N
2 mm	50%	1.31 kg / 2.89 LBS 1310.0 g / 12.9 N
3 mm	75%	1.97 kg / 4.33 LBS 1965.0 g / 19.3 N
5 mm	100%	2.62 kg / 5.78 LBS 2620.0 g / 25.7 N
10 mm	100%	2.62 kg / 5.78 LBS 2620.0 g / 25.7 N
11 mm	100%	2.62 kg / 5.78 LBS 2620.0 g / 25.7 N
12 mm	100%	2.62 kg / 5.78 LBS 2620.0 g / 25.7 N

A too thin steel cannot conduct the entire magnetic field, which squanders power of the holder. Should you attach a powerful product to a thin surface, the flux will penetrate right through and the pull force will drop sharply. To squeeze full efficiency of this magnet's power, you require a sufficiently solid piece of metal. The material oversaturation means that on thin elements (e.g., thin profiles), the product works worse. We suggest choosing the steel thickness from these parameters.

Table 5: Thermal stability (material behavior) - thermal limit
MW 12x50 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	2.62 kg / 5.78 LBS 2620.0 g / 25.7 N	OK
40 °C	-2.2%	2.56 kg / 5.65 LBS 2562.4 g / 25.1 N	OK
60 °C	-4.4%	2.50 kg / 5.52 LBS 2504.7 g / 24.6 N	OK
80 °C	-6.6%	2.45 kg / 5.39 LBS 2447.1 g / 24.0 N
100 °C	-28.8%	1.87 kg / 4.11 LBS 1865.4 g / 18.3 N

Classic neodymiums irreversibly lose power after exceeding the maximum temperature. Watch out for overheating – heat can irreversibly demagnetize this magnet. With every degree above norm, the magnet's force momentarily decreases. Do not use this magnet close to heaters exceeding its safe range. Ignoring the limit will result in permanent loss of magnetic properties.

*Important note: Heat tolerance depends not only on the material grade, as well as the dimension ratios. Low-profile magnets (pancake types) risk losing magnetic properties under lower heat stress than taller cylinders. The danger warning in the table indicates permanent field degradation for this particular item.

Table 6: Two magnets (repulsion) - field range
MW 12x50 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Strength (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	26.33 kg / 58.05 LBS 6 179 Gs	3.95 kg / 8.71 LBS 3950 g / 38.7 N	N/A
1 mm	22.19 kg / 48.93 LBS 11 284 Gs	3.33 kg / 7.34 LBS 3329 g / 32.7 N	19.97 kg / 44.04 LBS ~0 Gs
2 mm	18.41 kg / 40.58 LBS 10 277 Gs	2.76 kg / 6.09 LBS 2761 g / 27.1 N	16.57 kg / 36.53 LBS ~0 Gs
3 mm	15.11 kg / 33.30 LBS 9 309 Gs	2.27 kg / 5.00 LBS 2266 g / 22.2 N	13.60 kg / 29.97 LBS ~0 Gs
5 mm	9.94 kg / 21.91 LBS 7 551 Gs	1.49 kg / 3.29 LBS 1491 g / 14.6 N	8.94 kg / 19.72 LBS ~0 Gs
10 mm	3.36 kg / 7.40 LBS 4 389 Gs	0.50 kg / 1.11 LBS 504 g / 4.9 N	3.02 kg / 6.66 LBS ~0 Gs
20 mm	0.51 kg / 1.12 LBS 1 706 Gs	0.08 kg / 0.17 LBS 76 g / 0.7 N	0.46 kg / 1.01 LBS ~0 Gs
50 mm	0.02 kg / 0.04 LBS 303 Gs	0.00 kg / 0.01 LBS 2 g / 0.0 N	0.01 kg / 0.03 LBS ~0 Gs
60 mm	0.01 kg / 0.02 LBS 206 Gs	0.00 kg / 0.00 LBS 1 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
70 mm	0.00 kg / 0.01 LBS 148 Gs	0.00 kg / 0.00 LBS 1 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
80 mm	0.00 kg / 0.00 LBS 110 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 84 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 66 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 much further distance than a magnet and sheet setup. The setup of magnet-to-magnet produces a massive flux and a wider radius of action. Designing a powerful holder? Utilize two neodymiums instead of a neodymium and a striker plate. Remember that when attracting two neodymiums, the pinch force is extreme. The levitation is marginally weaker than the connection force, but still significant.
*Field value in repulsion mode reaches ~0 Gs in the exact middle of the gap (due to field cancellation).
* Figures show shear force of dual matching magnets (friction ~0.15 for Ni-Ni coating).

Table 7: Hazards (electronics) - precautionary measures
MW 12x50 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	11.0 cm
Hearing aid	10 Gs (1.0 mT)	8.5 cm
Timepiece	20 Gs (2.0 mT)	6.5 cm
Mobile device	40 Gs (4.0 mT)	5.0 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 poses a large risk to electronics as well as pacemakers. These magnets produce a field that disrupts operation of sensitive medical devices. Notice: the unseen radiation acts through matter and housings. Special caution must be exercised by people with cochlear implants and drug dispensers. Influence will be felt by: mechanical watches, remotes, speakers, and displays. Do not place the magnet near cards, HDD media, or precise measuring instruments.

Table 8: Dynamics (cracking risk) - collision effects
MW 12x50 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	8.02 km/h (2.23 m/s)	0.11 J
30 mm	13.73 km/h (3.81 m/s)	0.31 J
50 mm	17.73 km/h (4.92 m/s)	0.51 J
100 mm	25.07 km/h (6.96 m/s)	1.03 J

Magnetic elements are prone to chipping – a collision with steel causes immediate chipping. Watch the impact speed – a magnet released freely becomes dangerous. Kinetic force can trigger coating fragments or dangerous crushing to fingers. Be sure to control the product during bringing near metal so it doesn't hit with great force against the steel surface. A contact at a velocity of dozens of km/h almost guarantees destruction of the magnet. Wear safety glasses when working with powerful specimens.

Table 9: Anti-corrosion coating durability
MW 12x50 / 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: Electrical data (P_c)
MW 12x50 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	8 230 Mx	82.3 µWb
P_c Coefficient	1.49	High (Stable)

Flux value emitted by the pole surface. Essential parameter in coil applications and motors. The P_c coefficient defines the magnet's operating point.

Table 11: Physics of underwater searching
MW 12x50 / N38

Environment	Effective steel pull	Effect
Air (land)	2.62 kg	Standard
Water (riverbed)	3.00 kg (+0.38 kg buoyancy gain)	+14.5%

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

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

1. Vertical hold

*Warning: On a vertical surface, the magnet retains just a fraction of its max power.

2. Steel thickness impact

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

3. Temperature resistance

*For N38 grade, the critical limit is 80°C.

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 1.49

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 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: 010020-2026

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Newtons (N)

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MW 12.5x2 / N38 - cylindrical magnet

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MW 5x1 / N38 - cylindrical magnet

0.1845 ZŁ brutto / pcs

The offered product is a very strong cylinder magnet, produced from durable NdFeB material, which, at dimensions of Ø12x50 mm, guarantees the highest energy density. This specific item is characterized by high dimensional repeatability and professional build quality, making it a perfect solution for the most demanding engineers and designers. As a cylindrical magnet with impressive force (approx. 2.62 kg), this product is available off-the-shelf from our European logistics center, ensuring rapid order fulfillment. Furthermore, its Ni-Cu-Ni coating secures it against corrosion in typical operating conditions, guaranteeing an aesthetic appearance and durability for years.

This model is created for building generators, advanced sensors, and efficient magnetic separators, where field concentration on a small surface counts. Thanks to the high power of 25.73 N with a weight of only 42.41 g, this cylindrical magnet is indispensable in electronics 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, anaerobic resins are used, which are safe for nickel and fill the gap, guaranteeing durability of the connection.

Grade N38 is the most frequently chosen standard for industrial neodymium magnets, offering a great economic balance and high resistance to demagnetization. If you need the strongest magnets in the same volume (Ø12x50), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our store.

This model is characterized by dimensions Ø12x50 mm, which, at a weight of 42.41 g, makes it an element with impressive magnetic energy density. The value of 25.73 N means that the magnet is capable of holding a weight many times exceeding its own mass of 42.41 g. The product has a [NiCuNi] coating, which secures it against external factors, 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 12 mm. 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.

Pros and cons of Nd₂Fe₁₄B magnets.

Pros

In addition to their long-term stability, neodymium magnets provide the following advantages:

Their magnetic field is durable, and after approximately 10 years it decreases only by ~1% (theoretically),
Neodymium magnets are distinguished by remarkably resistant to demagnetization caused by external interference,
A magnet with a metallic silver surface has an effective appearance,
Magnetic induction on the working layer of the magnet remains exceptional,
Due to their durability and thermal resistance, neodymium magnets can operate (depending on the shape) even at high temperatures reaching 230°C or more...
Possibility of exact modeling and modifying to concrete conditions,
Versatile presence in future technologies – they find application in mass storage devices, motor assemblies, medical equipment, as well as multitasking production systems.
Thanks to efficiency per cm³, small magnets offer high operating force, with minimal size,

Limitations

Disadvantages of NdFeB magnets:

They are fragile upon too strong impacts. To avoid cracks, it is worth protecting magnets in special housings. Such protection not only protects the magnet but also increases its resistance to damage
Neodymium magnets lose power 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 very resistant to heat
They oxidize in a humid environment. For use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
Limited possibility of producing threads in the magnet and complicated forms - recommended is a housing - magnetic holder.
Health risk to health – tiny shards of magnets pose a threat, if swallowed, which is particularly important in the aspect of protecting the youngest. Additionally, small elements of these products are able to be problematic in diagnostics medical in case of swallowing.
High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which hinders application in large quantities

Pull force analysis

Highest magnetic holding force – what it depends on?

The specified lifting capacity concerns the maximum value, measured under laboratory conditions, specifically:

using a plate made of mild steel, functioning as a magnetic yoke
whose thickness is min. 10 mm
with a surface perfectly flat
without any insulating layer between the magnet and steel
for force applied at a right angle (pull-off, not shear)
in stable room temperature

Determinants of practical lifting force of a magnet

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

Distance (betwixt the magnet and the metal), since even a microscopic clearance (e.g. 0.5 mm) leads to a decrease in force by up to 50% (this also applies to paint, rust or dirt).
Direction of force – highest force is reached only during pulling at a 90° angle. The shear force of the magnet along the plate is typically several times lower (approx. 1/5 of the lifting capacity).
Substrate thickness – for full efficiency, the steel must be sufficiently thick. Thin sheet limits the lifting capacity (the magnet "punches through" it).
Material composition – not every steel attracts identically. High carbon content weaken the interaction with the magnet.
Base smoothness – the smoother and more polished the plate, the better the adhesion and stronger the hold. Roughness creates an air distance.
Temperature influence – high temperature reduces pulling force. Too high temperature can permanently demagnetize the magnet.

Lifting capacity was measured with the use of a smooth steel plate of optimal thickness (min. 20 mm), under perpendicular pulling force, however under attempts to slide the magnet the load capacity is reduced by as much as 75%. In addition, even a small distance between the magnet and the plate decreases the lifting capacity.

H&S for magnets

Nickel allergy

It is widely known that nickel (the usual finish) is a strong allergen. For allergy sufferers, refrain from touching magnets with bare hands and select coated magnets.

Threat to electronics

Do not bring magnets close to a purse, laptop, or screen. The magnetic field can irreversibly ruin these devices and erase data from cards.

Bodily injuries

Danger of trauma: The attraction force is so great that it can cause blood blisters, pinching, and broken bones. Use thick gloves.

Power loss in heat

Keep cool. NdFeB magnets are sensitive to heat. If you need operation above 80°C, inquire about special high-temperature series (H, SH, UH).

GPS and phone interference

Navigation devices and smartphones are extremely sensitive to magnetic fields. Close proximity with a strong magnet can permanently damage the sensors in your phone.

Pacemakers

For implant holders: Strong magnetic fields disrupt medical devices. Maintain minimum 30 cm distance or request help to work with the magnets.

No play value

Strictly store magnets out of reach of children. Choking hazard is significant, and the consequences of magnets clamping inside the body are very dangerous.

Fire warning

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

Magnets are brittle

Despite the nickel coating, neodymium is delicate and cannot withstand shocks. Do not hit, as the magnet may crumble into sharp, dangerous pieces.

Immense force

Exercise caution. Neodymium magnets attract from a distance and snap with huge force, often quicker than you can move away.

Warning! Want to know more? Check our post: Why are neodymium magnets dangerous?

MW 12x50 / N38 - cylindrical magnet

Product card - MW 12x50 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical simulation of the magnet - data

Table 1: Static pull force (pull vs distance) - power drop MW 12x50 / N38

Table 2: Slippage load (vertical surface) MW 12x50 / N38

Table 3: Wall mounting (shearing) - behavior on slippery surfaces MW 12x50 / N38

Table 4: Steel thickness (saturation) - power losses MW 12x50 / N38

Table 5: Thermal stability (material behavior) - thermal limit MW 12x50 / N38

Table 6: Two magnets (repulsion) - field range MW 12x50 / N38

Table 7: Hazards (electronics) - precautionary measures MW 12x50 / N38

Table 8: Dynamics (cracking risk) - collision effects MW 12x50 / N38

Table 9: Anti-corrosion coating durability MW 12x50 / N38

Table 10: Electrical data (Pc) MW 12x50 / N38

Table 11: Physics of underwater searching MW 12x50 / N38

1. Vertical hold

2. Steel thickness impact

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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MW 5x1 / N38 - cylindrical magnet

Pros and cons of Nd2Fe14B magnets.

Pros

Limitations

Pull force analysis

Highest magnetic holding force – what it depends on?

Determinants of practical lifting force of a magnet

H&S for magnets

Nickel allergy

Threat to electronics

Bodily injuries

Power loss in heat

GPS and phone interference

Pacemakers

No play value

Fire warning

Magnets are brittle

Immense force

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (pull vs distance) - power drop
MW 12x50 / N38

Table 2: Slippage load (vertical surface)
MW 12x50 / N38

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MW 12x50 / N38

Table 4: Steel thickness (saturation) - power losses
MW 12x50 / N38

Table 5: Thermal stability (material behavior) - thermal limit
MW 12x50 / N38

Table 6: Two magnets (repulsion) - field range
MW 12x50 / N38

Table 7: Hazards (electronics) - precautionary measures
MW 12x50 / N38

Table 8: Dynamics (cracking risk) - collision effects
MW 12x50 / N38

Table 9: Anti-corrosion coating durability
MW 12x50 / N38

Table 10: Electrical data (P_c)
MW 12x50 / N38

Table 11: Physics of underwater searching
MW 12x50 / N38

Pros and cons of Nd₂Fe₁₄B magnets.