Product available Ships tomorrow

MW 12x1 / 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 010015

GTIN/EAN: 5906301810148

5.00

Diameter Ø

12 mm [±0,1 mm]

Height

1 mm [±0,1 mm]

Weight

0.85 g

Magnetization Direction

↑ axial

Load capacity

0.42 kg / 4.15 N

Magnetic Induction

101.90 mT / 1019 Gs

Coating

[NiCuNi] Nickel

check parameters »

0.578 ZŁ with VAT / pcs + price for transport

0.470 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs

0.470 ZŁ

0.578 ZŁ

price from 1920 pcs

0.423 ZŁ

0.520 ZŁ

price from 3840 pcs

0.414 ZŁ

0.509 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Want to talk magnets?

Give us a call +48 22 499 98 98 otherwise get in touch via our online form the contact page.
Parameters and form of neodymium magnets can be estimated using our modular calculator.

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

Technical of the product - MW 12x1 / N38 - cylindrical magnet

Specification / characteristics - MW 12x1 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010015
GTIN/EAN	5906301810148
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	1 mm [±0,1 mm]
Weight	0.85 g
Magnetization Direction	↑ axial
Load capacity ~ ?	0.42 kg / 4.15 N
Magnetic Induction ~ ?	101.90 mT / 1019 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 12x1 / 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

Physical modeling of the assembly - data

Presented values constitute the direct effect of a engineering calculation. Values were calculated on algorithms for the class Nd₂Fe₁₄B. Operational parameters might slightly differ from theoretical values. Treat these calculations as a reference point for designers.

Table 1: Static force (force vs gap) - power drop
MW 12x1 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	1019 Gs 101.9 mT	0.42 kg / 0.93 LBS 420.0 g / 4.1 N	safe
1 mm	941 Gs 94.1 mT	0.36 kg / 0.79 LBS 358.5 g / 3.5 N	safe
2 mm	812 Gs 81.2 mT	0.27 kg / 0.59 LBS 266.8 g / 2.6 N	safe
3 mm	666 Gs 66.6 mT	0.18 kg / 0.40 LBS 179.7 g / 1.8 N	safe
5 mm	415 Gs 41.5 mT	0.07 kg / 0.15 LBS 69.7 g / 0.7 N	safe
10 mm	126 Gs 12.6 mT	0.01 kg / 0.01 LBS 6.5 g / 0.1 N	safe
15 mm	49 Gs 4.9 mT	0.00 kg / 0.00 LBS 1.0 g / 0.0 N	safe
20 mm	23 Gs 2.3 mT	0.00 kg / 0.00 LBS 0.2 g / 0.0 N	safe
30 mm	7 Gs 0.7 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	safe
50 mm	2 Gs 0.2 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	safe

Magnetic force drops sharply per each millimeter of distance. Keep in mind that even the smallest gap (e.g., contamination, paint, veneer) significantly diminishes the holding power. Magnetic products hold strongest in perfect adhesion; air break nullifies the force. See how rapidly the parameters plummet, when the product does not touch flatly to the metal substrate. When calculating the mounting, avoid unnecessary gaps.

Table 2: Shear capacity (wall)
MW 12x1 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.08 kg / 0.19 LBS 84.0 g / 0.8 N
1 mm	Stal (~0.2)	0.07 kg / 0.16 LBS 72.0 g / 0.7 N
2 mm	Stal (~0.2)	0.05 kg / 0.12 LBS 54.0 g / 0.5 N
3 mm	Stal (~0.2)	0.04 kg / 0.08 LBS 36.0 g / 0.4 N
5 mm	Stal (~0.2)	0.01 kg / 0.03 LBS 14.0 g / 0.1 N
10 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 2.0 g / 0.0 N
15 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 0.0 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

This section defines the estimated weight limit sufficient to initiate the downward movement of the magnet down along a upright steel wall (assuming typical friction). This value varies with the air gap between the magnet and the metal.

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 12x1 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.13 kg / 0.28 LBS 126.0 g / 1.2 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.08 kg / 0.19 LBS 84.0 g / 0.8 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.04 kg / 0.09 LBS 42.0 g / 0.4 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.21 kg / 0.46 LBS 210.0 g / 2.1 N

When placing a holder on a vertical wall (e.g., a car body), it you can count on only approx. 1/5 of its nominal power. Gravity as well as a weak degree of grip mean that products slide down faster than they pop off the substrate. Want to create a hanger? Note that the shear force is noticeably lower than the perpendicular breakaway force. On a painted metal, the magnet will slide down under a noticeably lighter cargo. Application of an anti-slip layer can significantly increase the grip.

Table 4: Material efficiency (saturation) - power losses
MW 12x1 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.04 kg / 0.09 LBS 42.0 g / 0.4 N
1 mm	25%	0.11 kg / 0.23 LBS 105.0 g / 1.0 N
2 mm	50%	0.21 kg / 0.46 LBS 210.0 g / 2.1 N
3 mm	75%	0.32 kg / 0.69 LBS 315.0 g / 3.1 N
5 mm	100%	0.42 kg / 0.93 LBS 420.0 g / 4.1 N
10 mm	100%	0.42 kg / 0.93 LBS 420.0 g / 4.1 N
11 mm	100%	0.42 kg / 0.93 LBS 420.0 g / 4.1 N
12 mm	100%	0.42 kg / 0.93 LBS 420.0 g / 4.1 N

A thin metal plate cannot take in the full magnetic flux, which weakens actual performance of the holder. Should you mount a strong magnet to a thin surface, the magnetism will penetrate right through and the attraction force will be weaker. To squeeze the maximum of this magnet's power, you need a suitably thick backing of metal. The material oversaturation causes that on thin elements (e.g., thin profiles), the magnet shows lower pull force. We advise picking the steel cross-section according to the table below.

Table 5: Working in heat (stability) - power drop
MW 12x1 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	0.42 kg / 0.93 LBS 420.0 g / 4.1 N	OK
40 °C	-2.2%	0.41 kg / 0.91 LBS 410.8 g / 4.0 N	OK
60 °C	-4.4%	0.40 kg / 0.89 LBS 401.5 g / 3.9 N
80 °C	-6.6%	0.39 kg / 0.86 LBS 392.3 g / 3.8 N
100 °C	-28.8%	0.30 kg / 0.66 LBS 299.0 g / 2.9 N

Classic neodymiums lose power above the temperature limit. Avoid high temperatures – heat can irreversibly demagnetize this product. With every degree above norm, the magnet's force temporarily drops. Avoid using this magnet near heat sources exceeding its safe range. Too high temperature will cause permanent loss of magnetic properties.

*Important note: Temperature resistance depends not only on the material grade, but also on the magnet's shape. Flat magnets (pancake types) are more susceptible to demagnetization under lower heat stress compared to rod magnets. The danger warning in the table signals permanent field degradation for this particular item.

Table 6: Magnet-Magnet interaction (repulsion) - forces in the system
MW 12x1 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	0.72 kg / 1.60 LBS 1 959 Gs	0.11 kg / 0.24 LBS 109 g / 1.1 N	N/A
1 mm	0.68 kg / 1.50 LBS 1 978 Gs	0.10 kg / 0.23 LBS 102 g / 1.0 N	0.61 kg / 1.35 LBS ~0 Gs
2 mm	0.62 kg / 1.36 LBS 1 883 Gs	0.09 kg / 0.20 LBS 93 g / 0.9 N	0.56 kg / 1.23 LBS ~0 Gs
3 mm	0.54 kg / 1.19 LBS 1 762 Gs	0.08 kg / 0.18 LBS 81 g / 0.8 N	0.49 kg / 1.07 LBS ~0 Gs
5 mm	0.38 kg / 0.84 LBS 1 479 Gs	0.06 kg / 0.13 LBS 57 g / 0.6 N	0.34 kg / 0.76 LBS ~0 Gs
10 mm	0.12 kg / 0.26 LBS 830 Gs	0.02 kg / 0.04 LBS 18 g / 0.2 N	0.11 kg / 0.24 LBS ~0 Gs
20 mm	0.01 kg / 0.02 LBS 253 Gs	0.00 kg / 0.00 LBS 2 g / 0.0 N	0.01 kg / 0.02 LBS ~0 Gs
50 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
60 mm	0.00 kg / 0.00 LBS 15 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 10 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 7 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 5 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 3 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs

Two magnetic products attract each other from a significantly greater distance than a neodymium and metal setup. The connection of magnet-to-magnet generates a stronger field and a larger range of operation. Planning to create a solid fastener? Utilize two neodymiums instead of a neodymium and a steel. Be careful that when attracting two neodymiums, the impact force is extreme. The levitation is slightly lower than the attraction, but still impressive.
*The magnetic induction for N-N configuration drops to ~0 Gs at the geometric center between the magnets (caused by magnetic field nullification).
Attention: Figures refer to sliding force of dual matching magnets (friction ~0.15 for Ni-Ni coating).

Table 7: Hazards (electronics) - precautionary measures
MW 12x1 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	3.5 cm
Hearing aid	10 Gs (1.0 mT)	3.0 cm
Mechanical watch	20 Gs (2.0 mT)	2.5 cm
Phone / Smartphone	40 Gs (4.0 mT)	2.0 cm
Remote	50 Gs (5.0 mT)	1.5 cm
Payment card	400 Gs (40.0 mT)	1.0 cm
HDD hard drive	600 Gs (60.0 mT)	0.5 cm

Extremely neodym field is a serious hazard to electronics and medical implants. These neodymiums generate a flux that prevents correct functioning of sensitive medical devices. Be aware: the invisible magnetic field acts through matter and housings. Increased vigilance must be taken by people with cochlear implants and insulin pumps. The risk also applies to: mechanical watches, car keys, membranes, and screens. Avoid contact with magnetic cards, HDD media, or precise measuring instruments.

Table 8: Impact energy (kinetic energy) - warning
MW 12x1 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	22.63 km/h (6.29 m/s)	0.02 J
30 mm	38.83 km/h (10.79 m/s)	0.05 J
50 mm	50.13 km/h (13.92 m/s)	0.08 J
100 mm	70.89 km/h (19.69 m/s)	0.16 J

NdFeB products are delicate – a violent impact against metal can result in shattering. Watch the impact speed – a neodymium left loose becomes dangerous. Impact 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 means shattering of the neodymium. Wear safety glasses when working with powerful specimens.

Table 9: Surface protection spec
MW 12x1 / 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. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Electrical data (Flux)
MW 12x1 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	1 564 Mx	15.6 µWb
P_c Coefficient	0.13	Low (Flat)

Total magnetic flux passing through the pole surface. Essential parameter in coil applications as well as sensors. The P_c coefficient defines the magnet's operating point.

Table 11: Underwater work (magnet fishing)
MW 12x1 / N38

Environment	Effective steel pull	Effect
Air (land)	0.42 kg	Standard
Water (riverbed)	0.48 kg (+0.06 kg buoyancy gain)	+14.5%

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

Contrary to myths, water does not block the magnetic field. Buoyancy helps in lifting finds.

1. Vertical hold

*Caution: On a vertical wall, the magnet holds merely ~20% of its nominal pull.

2. Efficiency vs thickness

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

3. Thermal stability

*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) = 0.13

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

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%

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: 010015-2026

Measurement Calculator

Force (pull)

Pounds (lbs)

Magnetic Induction

Gauss (Gs)

Induction (T)

Enter data in one of the inputs, to see the rest convert in real-time.

Other products

Product available Ships tomorrow

UMGW 48x24x11.5 [M8] GW / N38 - magnetic holder internal thread

59.96 ZŁ brutto / pcs

Product available Ships tomorrow

MPL 30x20x4 / N38 - lamellar magnet

10.23 ZŁ brutto / pcs

Product available Ships tomorrow

MPL 40x18x10 / N38 - lamellar magnet

30.75 ZŁ brutto / pcs

Product available Ships tomorrow

UI 40x12x7 [CA] - badge holder

0.984 ZŁ brutto / pcs

The offered product is an incredibly powerful cylinder magnet, manufactured from durable NdFeB material, which, at dimensions of Ø12x1 mm, guarantees optimal power. This specific item boasts a tolerance of ±0.1mm and professional build quality, making it an excellent solution for professional engineers and designers. As a magnetic rod with impressive force (approx. 0.42 kg), this product is available off-the-shelf from our European logistics center, ensuring rapid order fulfillment. Moreover, its triple-layer Ni-Cu-Ni coating shields it against corrosion in typical operating conditions, ensuring an aesthetic appearance and durability for years.

This model is perfect for building electric motors, advanced Hall effect sensors, and efficient filters, where field concentration on a small surface counts. Thanks to the high power of 4.15 N with a weight of only 0.85 g, this cylindrical magnet is indispensable in miniature devices and wherever every gram matters.

Since our magnets have a tolerance of ±0.1mm, 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 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 (Ø12x1), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our store.

The presented product is a neodymium magnet with precisely defined parameters: diameter 12 mm and height 1 mm. The value of 4.15 N means that the magnet is capable of holding a weight many times exceeding its own mass of 0.85 g. The product has a [NiCuNi] coating, which secures it 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 diametrically if your project requires it.

Pros and cons of Nd₂Fe₁₄B magnets.

Advantages

Besides their magnetic performance, neodymium magnets are valued for these benefits:

They virtually do not lose strength, because even after ten years the performance loss is only ~1% (based on calculations),
Magnets effectively defend themselves against demagnetization caused by foreign field sources,
In other words, due to the metallic surface of nickel, the element gains a professional look,
The surface of neodymium magnets generates a intense magnetic field – this is a key feature,
Thanks to resistance to high temperature, they can operate (depending on the form) even at temperatures up to 230°C and higher...
Thanks to modularity in designing and the ability to adapt to unusual requirements,
Wide application in innovative solutions – they are utilized in data components, electric drive systems, precision medical tools, also technologically advanced constructions.
Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in tiny dimensions, which enables their usage in miniature devices

Weaknesses

Problematic aspects of neodymium magnets: tips and applications.

Susceptibility to cracking is one of their disadvantages. Upon intense impact they can break. We advise keeping them in a strong case, which not only secures them against impacts but also raises their durability
NdFeB 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 very resistant to heat
Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material resistant to moisture, when using outdoors
Due to limitations in producing threads and complex shapes in magnets, we recommend using cover - magnetic holder.
Possible danger resulting from small fragments of magnets pose a threat, if swallowed, which is particularly important in the aspect of protecting the youngest. Additionally, small elements of these magnets can complicate diagnosis medical after entering the body.
Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Lifting parameters

Maximum holding power of the magnet – what contributes to it?

Information about lifting capacity was defined for ideal contact conditions, assuming:

using a base made of mild steel, functioning as a ideal flux conductor
with a cross-section of at least 10 mm
with a plane perfectly flat
with total lack of distance (no coatings)
during detachment in a direction perpendicular to the mounting surface
in temp. approx. 20°C

Practical aspects of lifting capacity – factors

Bear in mind that the application force will differ depending on elements below, starting with the most relevant:

Gap (between the magnet and the metal), since even a tiny distance (e.g. 0.5 mm) leads to a reduction in lifting capacity by up to 50% (this also applies to paint, corrosion or debris).
Loading method – declared lifting capacity refers to detachment vertically. When attempting to slide, the magnet exhibits much less (typically approx. 20-30% of nominal force).
Element thickness – for full efficiency, the steel must be adequately massive. Thin sheet restricts the attraction force (the magnet "punches through" it).
Steel grade – the best choice is high-permeability steel. Cast iron may generate lower lifting capacity.
Plate texture – smooth surfaces guarantee perfect abutment, which improves force. Rough surfaces reduce efficiency.
Temperature influence – hot environment reduces magnetic field. Too high temperature can permanently damage the magnet.

Lifting capacity testing was carried out on plates with a smooth surface of optimal thickness, under a perpendicular pulling force, however under attempts to slide the magnet the lifting capacity is smaller. Additionally, even a minimal clearance between the magnet and the plate decreases the load capacity.

Safety rules for work with NdFeB magnets

Fragile material

Beware of splinters. Magnets can fracture upon violent connection, ejecting sharp fragments into the air. We recommend safety glasses.

Immense force

Handle with care. Neodymium magnets act from a long distance and connect with huge force, often quicker than you can move away.

Protect data

Do not bring magnets near a purse, laptop, or TV. The magnetic field can destroy these devices and erase data from cards.

Heat warning

Regular neodymium magnets (N-type) undergo demagnetization when the temperature surpasses 80°C. The loss of strength is permanent.

Precision electronics

Remember: rare earth magnets produce a field that interferes with precision electronics. Keep a safe distance from your phone, tablet, and navigation systems.

Warning for heart patients

Health Alert: Neodymium magnets can deactivate heart devices and defibrillators. Do not approach if you have electronic implants.

This is not a toy

Absolutely store magnets away from children. Ingestion danger is significant, and the effects of magnets clamping inside the body are fatal.

Avoid contact if allergic

It is widely known that the nickel plating (standard magnet coating) is a potent allergen. If your skin reacts to metals, prevent direct skin contact and select encased magnets.

Crushing risk

Large magnets can crush fingers in a fraction of a second. Never place your hand betwixt two attracting surfaces.

Machining danger

Machining of NdFeB material poses a fire risk. Neodymium dust reacts violently with oxygen and is difficult to extinguish.

Danger! Need more info? Read our article: Are neodymium magnets dangerous?

MW 12x1 / N38 - cylindrical magnet

Technical of the product - MW 12x1 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical modeling of the assembly - data

Table 1: Static force (force vs gap) - power drop MW 12x1 / N38

Table 2: Shear capacity (wall) MW 12x1 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces MW 12x1 / N38

Table 4: Material efficiency (saturation) - power losses MW 12x1 / N38

Table 5: Working in heat (stability) - power drop MW 12x1 / N38

Table 6: Magnet-Magnet interaction (repulsion) - forces in the system MW 12x1 / N38

Table 7: Hazards (electronics) - precautionary measures MW 12x1 / N38

Table 8: Impact energy (kinetic energy) - warning MW 12x1 / N38

Table 9: Surface protection spec MW 12x1 / N38

Table 10: Electrical data (Flux) MW 12x1 / N38

Table 11: Underwater work (magnet fishing) MW 12x1 / N38

1. Vertical hold

2. Efficiency vs thickness

3. Thermal stability

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

Chemical composition

Sustainability

Force (pull)

Magnetic Induction

Other products

UMGW 48x24x11.5 [M8] GW / N38 - magnetic holder internal thread

MPL 30x20x4 / N38 - lamellar magnet

MPL 40x18x10 / N38 - lamellar magnet

UI 40x12x7 [CA] - badge holder

Pros and cons of Nd2Fe14B magnets.

Advantages

Weaknesses

Lifting parameters

Maximum holding power of the magnet – what contributes to it?

Practical aspects of lifting capacity – factors

Safety rules for work with NdFeB magnets

Fragile material

Immense force

Protect data

Heat warning

Precision electronics

Warning for heart patients

This is not a toy

Avoid contact if allergic

Crushing risk

Machining danger

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs gap) - power drop
MW 12x1 / N38

Table 2: Shear capacity (wall)
MW 12x1 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 12x1 / N38

Table 4: Material efficiency (saturation) - power losses
MW 12x1 / N38

Table 5: Working in heat (stability) - power drop
MW 12x1 / N38

Table 6: Magnet-Magnet interaction (repulsion) - forces in the system
MW 12x1 / N38

Table 7: Hazards (electronics) - precautionary measures
MW 12x1 / N38

Table 8: Impact energy (kinetic energy) - warning
MW 12x1 / N38

Table 9: Surface protection spec
MW 12x1 / N38

Table 10: Electrical data (Flux)
MW 12x1 / N38

Table 11: Underwater work (magnet fishing)
MW 12x1 / N38

Pros and cons of Nd₂Fe₁₄B magnets.