Product available Ships today (order by 14:00)

MW 12x2 / 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 010017

GTIN/EAN: 5906301810162

5.00

Diameter Ø

12 mm [±0,1 mm]

Height

2 mm [±0,1 mm]

Weight

1.7 g

Magnetization Direction

↑ axial

Load capacity

1.39 kg / 13.66 N

Magnetic Induction

195.97 mT / 1960 Gs

Coating

[NiCuNi] Nickel

view properties »

1.132 ZŁ with VAT / pcs + price for transport

0.920 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs

0.920 ZŁ

1.132 ZŁ

price from 700 pcs

0.865 ZŁ

1.064 ZŁ

price from 2800 pcs

0.810 ZŁ

0.996 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Looking for a better price?

Contact us by phone +48 22 499 98 98 alternatively send us a note via our online form our website.
Specifications along with form of a neodymium magnet can be tested with our online calculation tool.

Same-day shipping for orders placed before 14:00.

Technical parameters - MW 12x2 / N38 - cylindrical magnet

Specification / characteristics - MW 12x2 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010017
GTIN/EAN	5906301810162
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	2 mm [±0,1 mm]
Weight	1.7 g
Magnetization Direction	↑ axial
Load capacity ~ ?	1.39 kg / 13.66 N
Magnetic Induction ~ ?	195.97 mT / 1960 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 12x2 / 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 modeling of the magnet - report

These values are the result of a engineering analysis. Results rely on algorithms for the material Nd₂Fe₁₄B. Operational conditions may differ. Use these calculations as a preliminary roadmap when designing systems.

Table 1: Static pull force (force vs distance) - interaction chart
MW 12x2 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	1959 Gs 195.9 mT	1.39 kg / 3.06 pounds 1390.0 g / 13.6 N	safe
1 mm	1753 Gs 175.3 mT	1.11 kg / 2.45 pounds 1113.5 g / 10.9 N	safe
2 mm	1479 Gs 147.9 mT	0.79 kg / 1.75 pounds 791.7 g / 7.8 N	safe
3 mm	1196 Gs 119.6 mT	0.52 kg / 1.14 pounds 518.4 g / 5.1 N	safe
5 mm	738 Gs 73.8 mT	0.20 kg / 0.44 pounds 197.4 g / 1.9 N	safe
10 mm	229 Gs 22.9 mT	0.02 kg / 0.04 pounds 19.0 g / 0.2 N	safe
15 mm	90 Gs 9.0 mT	0.00 kg / 0.01 pounds 2.9 g / 0.0 N	safe
20 mm	43 Gs 4.3 mT	0.00 kg / 0.00 pounds 0.7 g / 0.0 N	safe
30 mm	14 Gs 1.4 mT	0.00 kg / 0.00 pounds 0.1 g / 0.0 N	safe
50 mm	3 Gs 0.3 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	safe

Pulling power drops sharply with every subsequent millimeter of spacing. Note that even a microscopic distance (e.g., contamination, varnish, dust) strongly weakens the grip. Neodymiums operate optimally in perfect adhesion; gap drastically cuts the force. Notice how quickly the parameters plummet, when the product does not touch flatly to the metal substrate. When planning the assembly, eliminate redundant distances.

Table 2: Slippage force (vertical surface)
MW 12x2 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.28 kg / 0.61 pounds 278.0 g / 2.7 N
1 mm	Stal (~0.2)	0.22 kg / 0.49 pounds 222.0 g / 2.2 N
2 mm	Stal (~0.2)	0.16 kg / 0.35 pounds 158.0 g / 1.5 N
3 mm	Stal (~0.2)	0.10 kg / 0.23 pounds 104.0 g / 1.0 N
5 mm	Stal (~0.2)	0.04 kg / 0.09 pounds 40.0 g / 0.4 N
10 mm	Stal (~0.2)	0.00 kg / 0.01 pounds 4.0 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 required to cause the downward movement of the magnet downwards along a upright steel wall (assuming standard friction). This parameter depends on the air gap between the magnet and the metal.

Table 3: Wall mounting (sliding) - vertical pull
MW 12x2 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.42 kg / 0.92 pounds 417.0 g / 4.1 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.28 kg / 0.61 pounds 278.0 g / 2.7 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.14 kg / 0.31 pounds 139.0 g / 1.4 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.70 kg / 1.53 pounds 695.0 g / 6.8 N

When hanging a magnet on a upright surface (e.g., a fridge), it you can count on only about 20%-30% of its nominal power. Gravitational force as well as a low friction coefficient cause that products move down easier than they detach. Want to create a vertical fastening? Note that the shear force is noticeably lower than the perpendicular breakaway force. On a painted metal, the element will slide down under a significantly smaller cargo. Application of an anti-slip layer can drastically raise the stability.

Table 4: Steel thickness (substrate influence) - power losses
MW 12x2 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.14 kg / 0.31 pounds 139.0 g / 1.4 N
1 mm	25%	0.35 kg / 0.77 pounds 347.5 g / 3.4 N
2 mm	50%	0.70 kg / 1.53 pounds 695.0 g / 6.8 N
3 mm	75%	1.04 kg / 2.30 pounds 1042.5 g / 10.2 N
5 mm	100%	1.39 kg / 3.06 pounds 1390.0 g / 13.6 N
10 mm	100%	1.39 kg / 3.06 pounds 1390.0 g / 13.6 N
11 mm	100%	1.39 kg / 3.06 pounds 1390.0 g / 13.6 N
12 mm	100%	1.39 kg / 3.06 pounds 1390.0 g / 13.6 N

A too thin steel is unable to take in the full magnetic flux, which wastes potential of the magnet. If you attach a powerful product to a too thin substrate, the magnetism will pass right through and the pull force will drop sharply. To squeeze full efficiency of this magnet's potential, you need a suitably thick piece of metal. The saturation phenomenon causes that on sheet metal structures (e.g., thin profiles), the magnet shows lower pull force. We advise picking the steel cross-section from these parameters.

Table 5: Working in heat (material behavior) - resistance threshold
MW 12x2 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	1.39 kg / 3.06 pounds 1390.0 g / 13.6 N	OK
40 °C	-2.2%	1.36 kg / 3.00 pounds 1359.4 g / 13.3 N	OK
60 °C	-4.4%	1.33 kg / 2.93 pounds 1328.8 g / 13.0 N
80 °C	-6.6%	1.30 kg / 2.86 pounds 1298.3 g / 12.7 N
100 °C	-28.8%	0.99 kg / 2.18 pounds 989.7 g / 9.7 N

Standard neodymium magnets change their properties strength after exceeding the maximum temperature. Protect against heat – high temperature can irreversibly destroy this magnet. As the temperature rises, the magnet's capacity momentarily lowers. Refrain from using this product near heat sources exceeding its operating temperature limit. Exceeding the critical threshold will lead to destruction of magnetic properties.

*Engineering note: Thermal stability depends not only on the material grade, and the Permeance Coefficient Pc. Flat magnets (pancake types) risk losing magnetic properties at lower temperatures than long magnets. The danger warning in the table points to permanent field degradation for this particular item.

Table 6: Magnet-Magnet interaction (attraction) - field collision
MW 12x2 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	2.68 kg / 5.90 pounds 3 435 Gs	0.40 kg / 0.88 pounds 401 g / 3.9 N	N/A
1 mm	2.44 kg / 5.37 pounds 3 739 Gs	0.37 kg / 0.81 pounds 366 g / 3.6 N	2.19 kg / 4.84 pounds ~0 Gs
2 mm	2.14 kg / 4.73 pounds 3 507 Gs	0.32 kg / 0.71 pounds 322 g / 3.2 N	1.93 kg / 4.25 pounds ~0 Gs
3 mm	1.83 kg / 4.04 pounds 3 241 Gs	0.27 kg / 0.61 pounds 275 g / 2.7 N	1.65 kg / 3.63 pounds ~0 Gs
5 mm	1.24 kg / 2.74 pounds 2 671 Gs	0.19 kg / 0.41 pounds 187 g / 1.8 N	1.12 kg / 2.47 pounds ~0 Gs
10 mm	0.38 kg / 0.84 pounds 1 476 Gs	0.06 kg / 0.13 pounds 57 g / 0.6 N	0.34 kg / 0.75 pounds ~0 Gs
20 mm	0.04 kg / 0.08 pounds 458 Gs	0.01 kg / 0.01 pounds 5 g / 0.1 N	0.03 kg / 0.07 pounds ~0 Gs
50 mm	0.00 kg / 0.00 pounds 47 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 28 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 18 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 13 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 9 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 7 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 steel combination. The setup of magnet-to-magnet creates a more powerful interaction and a further horizon of operation. Designing a powerful holder? Utilize two neodymiums instead of a neodymium and a steel. Exercise caution that when attracting two neodymiums, the impact force is extreme. The repulsion force is slightly lower than the connection force, but still significant.
*Field value in repulsion mode is approximately ~0 Gs at the geometric center between the magnets (resulting from vector opposition).
* Results demonstrate shear force of a pair of matching magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Protective zones (electronics) - precautionary measures
MW 12x2 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	4.5 cm
Hearing aid	10 Gs (1.0 mT)	3.5 cm
Timepiece	20 Gs (2.0 mT)	3.0 cm
Mobile device	40 Gs (4.0 mT)	2.5 cm
Remote	50 Gs (5.0 mT)	2.0 cm
Payment card	400 Gs (40.0 mT)	1.0 cm
HDD hard drive	600 Gs (60.0 mT)	1.0 cm

Powerful magnet radiation poses a serious hazard to electronics and pacemakers. These magnets generate a flux that disrupts operation of digital equipment. Be aware: the unseen radiation passes through tissues and housings. 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 place the magnet near cards, HDD media, or sensitive navigation tools.

Table 8: Dynamics (cracking risk) - collision effects
MW 12x2 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	29.08 km/h (8.08 m/s)	0.06 J
30 mm	49.95 km/h (13.88 m/s)	0.16 J
50 mm	64.48 km/h (17.91 m/s)	0.27 J
100 mm	91.19 km/h (25.33 m/s)	0.55 J

Magnetic elements are delicate – a violent impact against metal risks their cracking. Control the attraction moment – a magnet released freely becomes dangerous. Kinetic force can destroy the magnet or painful pinches to fingers. Hold the magnet firmly during installation so it doesn't hit with great force against the metal. A contact at a velocity of dozens of km/h means shattering of the magnet. Wear eye protection when handling with powerful specimens.

Table 9: Surface protection spec
MW 12x2 / 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. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Construction data (P_c)
MW 12x2 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	2 665 Mx	26.7 µWb
P_c Coefficient	0.25	Low (Flat)

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

Table 11: Hydrostatics and buoyancy
MW 12x2 / N38

Environment	Effective steel pull	Effect
Air (land)	1.39 kg	Standard
Water (riverbed)	1.59 kg (+0.20 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.

The magnetic field penetrates through water without any losses. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Sliding resistance

*Caution: On a vertical wall, the magnet retains only a fraction of its nominal pull.

2. Steel saturation

*Thin steel (e.g. 0.5mm PC case) drastically weakens the holding force.

3. Temperature resistance

*For standard magnets, the safety limit is 80°C.

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.25

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

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%

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: 010017-2026

Quick Unit Converter

Force (pull)

Kilograms (kg)

Newtons (N)

Pounds (lbs)

Field Strength

Induction (Gs)

Tesla (T)

Just fill in a single box, to let the tool calculate the rest for you.

UMP 97x40 [M8+M10] GW F300 Lina / N38 - search holder

370.00 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

MP 5x2.7/1.2x5 S / N38 - ring magnet

0.836 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

UMT 12x20 black / N38 - board holder

1.894 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

MW 3x1 / N38 - cylindrical magnet

0.1353 ZŁ brutto / pcs

The presented product is an extremely powerful cylindrical magnet, produced from advanced NdFeB material, which, with dimensions of Ø12x2 mm, guarantees maximum efficiency. This specific item is characterized by an accuracy of ±0.1mm and professional build quality, making it an excellent solution for the most demanding engineers and designers. As a magnetic rod with significant force (approx. 1.39 kg), this product is available off-the-shelf from our European logistics center, ensuring lightning-fast order fulfillment. Furthermore, its triple-layer Ni-Cu-Ni coating shields it against corrosion in typical operating conditions, guaranteeing an aesthetic appearance and durability for years.

It finds application in DIY projects, advanced robotics, and broadly understood industry, serving as a positioning or actuating element. Thanks to the high power of 13.66 N with a weight of only 1.7 g, this rod is indispensable in electronics and wherever low weight is crucial.

Since our magnets have a very precise dimensions, the best method is to glue them into holes with a slightly larger diameter (e.g., 12.1 mm) using epoxy glues. To ensure stability in automation, specialized industrial adhesives are used, which do not react with the nickel coating and fill the gap, guaranteeing high repeatability of the connection.

Grade N38 is the most frequently chosen standard for industrial neodymium magnets, offering an optimal price-to-power ratio and operational stability. If you need the strongest magnets in the same volume (Ø12x2), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our warehouse.

The presented product is a neodymium magnet with precisely defined parameters: diameter 12 mm and height 2 mm. The value of 13.66 N means that the magnet is capable of holding a weight many times exceeding its own mass of 1.7 g. 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 12 mm. Thanks to this, the magnet can be easily glued into a hole and achieve a strong field on the front surface. On request, we can also produce versions magnetized through the diameter if your project requires it.

Advantages and disadvantages of rare earth magnets.

Benefits

In addition to their magnetic efficiency, neodymium magnets provide the following advantages:

They have unchanged lifting capacity, and over more than 10 years their attraction force decreases symbolically – ~1% (according to theory),
They are resistant to demagnetization induced by external magnetic fields,
A magnet with a metallic gold surface is more attractive,
Magnetic induction on the surface of the magnet remains exceptional,
Neodymium magnets are characterized by very 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 versatility in shaping and the ability to adapt to unusual requirements,
Wide application in modern technologies – they find application in computer drives, electromotive mechanisms, advanced medical instruments, as well as multitasking production systems.
Thanks to concentrated force, small magnets offer high operating force, occupying minimum space,

Limitations

What to avoid - cons of neodymium magnets: application proposals

To avoid cracks under impact, we suggest using special steel housings. Such a solution secures the magnet and simultaneously increases its durability.
Neodymium magnets decrease 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 stability even at temperatures up to 230°C
They rust in a humid environment - during use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
We suggest a housing - magnetic mount, due to difficulties in producing threads inside the magnet and complicated shapes.
Potential hazard resulting from small fragments of magnets are risky, when accidentally swallowed, which becomes key in the context of child safety. Additionally, small elements of these products can complicate diagnosis medical after entering the body.
Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Lifting parameters

Highest magnetic holding force – what it depends on?

Holding force of 1.39 kg is a result of laboratory testing conducted under the following configuration:

with the application of a yoke made of low-carbon steel, ensuring full magnetic saturation
possessing a thickness of min. 10 mm to avoid saturation
with a surface free of scratches
without the slightest clearance between the magnet and steel
under perpendicular force vector (90-degree angle)
in stable room temperature

Lifting capacity in practice – influencing factors

Please note that the application force may be lower influenced by elements below, starting with the most relevant:

Space between magnet and steel – even a fraction of a millimeter of separation (caused e.g. by veneer or dirt) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
Angle of force application – highest force is reached only during pulling at a 90° angle. The force required to slide of the magnet along the surface is usually several times lower (approx. 1/5 of the lifting capacity).
Element thickness – for full efficiency, the steel must be adequately massive. Paper-thin metal restricts the lifting capacity (the magnet "punches through" it).
Material composition – different alloys reacts the same. Alloy additives worsen the attraction effect.
Surface condition – smooth surfaces ensure maximum contact, which increases force. Uneven metal weaken the grip.
Operating temperature – NdFeB sinters have a sensitivity to temperature. At higher temperatures they are weaker, and in frost they can be stronger (up to a certain limit).

Lifting capacity was assessed using a polished steel plate of optimal thickness (min. 20 mm), under perpendicular detachment force, however under parallel forces the holding force is lower. Additionally, even a minimal clearance between the magnet and the plate lowers the lifting capacity.

Warnings

Do not overheat magnets

Monitor thermal conditions. Heating the magnet to high heat will permanently weaken its properties and strength.

No play value

Absolutely store magnets away from children. Ingestion danger is significant, and the consequences of magnets clamping inside the body are life-threatening.

Material brittleness

Watch out for shards. Magnets can fracture upon violent connection, ejecting shards into the air. Eye protection is mandatory.

Danger to pacemakers

Medical warning: Strong magnets can turn off pacemakers and defibrillators. Do not approach if you have medical devices.

Metal Allergy

Studies show that nickel (standard magnet coating) is a common allergen. If you have an allergy, prevent touching magnets with bare hands and opt for encased magnets.

Magnetic interference

A powerful magnetic field negatively affects the functioning of magnetometers in phones and navigation systems. Do not bring magnets near a device to avoid breaking the sensors.

Cards and drives

Device Safety: Neodymium magnets can ruin data carriers and sensitive devices (pacemakers, medical aids, timepieces).

Finger safety

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

Dust is flammable

Mechanical processing of NdFeB material poses a fire hazard. Neodymium dust reacts violently with oxygen and is hard to extinguish.

Respect the power

Before use, read the rules. Sudden snapping can break the magnet or injure your hand. Be predictive.

Security! Details about hazards in the article: Magnet Safety Guide.

MW 12x2 / N38 - cylindrical magnet

Technical parameters - MW 12x2 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering modeling of the magnet - report

Table 1: Static pull force (force vs distance) - interaction chart MW 12x2 / N38

Table 2: Slippage force (vertical surface) MW 12x2 / N38

Table 3: Wall mounting (sliding) - vertical pull MW 12x2 / N38

Table 4: Steel thickness (substrate influence) - power losses MW 12x2 / N38

Table 5: Working in heat (material behavior) - resistance threshold MW 12x2 / N38

Table 6: Magnet-Magnet interaction (attraction) - field collision MW 12x2 / N38

Table 7: Protective zones (electronics) - precautionary measures MW 12x2 / N38

Table 8: Dynamics (cracking risk) - collision effects MW 12x2 / N38

Table 9: Surface protection spec MW 12x2 / N38

Table 10: Construction data (Pc) MW 12x2 / N38

Table 11: Hydrostatics and buoyancy MW 12x2 / N38

1. Sliding resistance

2. Steel saturation

3. Temperature resistance

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

Elemental analysis

Ecology and recycling (GPSR)

Force (pull)

Field Strength

See also offers

UMP 97x40 [M8+M10] GW F300 Lina / N38 - search holder

MP 5x2.7/1.2x5 S / N38 - ring magnet

UMT 12x20 black / N38 - board holder

MW 3x1 / N38 - cylindrical magnet

Advantages and disadvantages of rare earth magnets.

Benefits

Limitations

Lifting parameters

Highest magnetic holding force – what it depends on?

Lifting capacity in practice – influencing factors

Warnings

Do not overheat magnets

No play value

Material brittleness

Danger to pacemakers

Metal Allergy

Magnetic interference

Cards and drives

Finger safety

Dust is flammable

Respect the power

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs distance) - interaction chart
MW 12x2 / N38

Table 2: Slippage force (vertical surface)
MW 12x2 / N38

Table 3: Wall mounting (sliding) - vertical pull
MW 12x2 / N38

Table 4: Steel thickness (substrate influence) - power losses
MW 12x2 / N38

Table 5: Working in heat (material behavior) - resistance threshold
MW 12x2 / N38

Table 6: Magnet-Magnet interaction (attraction) - field collision
MW 12x2 / N38

Table 7: Protective zones (electronics) - precautionary measures
MW 12x2 / N38

Table 8: Dynamics (cracking risk) - collision effects
MW 12x2 / N38

Table 9: Surface protection spec
MW 12x2 / N38

Table 10: Construction data (P_c)
MW 12x2 / N38

Table 11: Hydrostatics and buoyancy
MW 12x2 / N38