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MW 12x4 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010019

GTIN/EAN: 5906301810186

5.00

Load capacity 3.45 kg / 33.83 N Magnetic Induction 343.64 mT / 3436 Gs

Diameter Ø: 12 mm [±0,1 mm]
Height: 4 mm [±0,1 mm]
Weight: 3.39 g
Magnetization Direction: ↑ axial
Coating: [NiCuNi] Nickel

How we measure these parameters — certificates and measurements

product parameters »

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Frequently asked questions

Where can I buy strong cylindrical neodymium magnets?

See the available cylinders in the DHIT catalogue. Compare dimensions, grade and the pull-force value on each product card; grade alone does not determine the pull force of a finished magnet.

Can a small cylindrical magnet provide a strong grip for precise workshop work?

Yes, but size alone is not enough to predict the result. Geometry, the steel surface and the direction of load affect the grip. Compare the specifications of the selected dimensions on their product cards.

Which cylindrical magnet can work at a higher temperature?

Check the operating-temperature limit of the particular model rather than assuming one limit for all N grades. The offered N52 models are rated up to 60°C. For hotter applications, ask for a product with a confirmed specification for the actual working temperature.

Guides from the knowledge base

Engineering report for this magnet

Full PDF analysis: pull and shear force, effect of distance, temperature and plate thickness, safety distances and the demagnetization curve.

PDF report Calculator

Want to talk magnets?

Call us now +48 888 99 98 98 alternatively let us know using contact form the contact section.
Specifications and structure of a neodymium magnet can be estimated using our power calculator.

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Technical data - MW 12x4 / N38 - cylindrical magnet

Specification / characteristics - MW 12x4 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010019
GTIN/EAN	5906301810186
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	4 mm [±0,1 mm]
Weight	3.39 g
Magnetization Direction	↑ axial
Load capacity ~ ?	3.45 kg / 33.83 N
Magnetic Induction ~ ?	343.64 mT / 3436 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 12x4 / N38 - cylindrical magnet

properties	values	units
Remanence Br ?	12.2-12.6	kGs
Remanence Br ?	1220-1260	mT
Coercivity bHc ?	10.8-11.5	kOe
Coercivity bHc ?	860-915	kA/m
Intrinsic coercivity iHc	≥ 12	kOe
Intrinsic coercivity iHc	≥ 955	kA/m
Energy product BHmax ?	36-38	BH max MGOe
Energy product BHmax ?	287-303	BH max KJ/m
Maximum working 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	310	°C
Curie Temperature TF	590	°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 analysis of the assembly - data

Presented information constitute the result of a engineering simulation. Results are based on algorithms for the class Nd₂Fe₁₄B. Real-world parameters might slightly deviate from the simulation results. Please consider these calculations as a preliminary roadmap when designing systems.

Table 1: Static force (force vs distance) - characteristics
MW 12x4 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	3435 Gs 343.5 mT	3.45 kg / 7.61 LBS 3450.0 g / 33.8 N	medium risk
1 mm	2950 Gs 295.0 mT	2.54 kg / 5.61 LBS 2544.7 g / 25.0 N	medium risk
2 mm	2423 Gs 242.3 mT	1.72 kg / 3.79 LBS 1717.5 g / 16.8 N	weak grip
3 mm	1935 Gs 193.5 mT	1.09 kg / 2.41 LBS 1094.6 g / 10.7 N	weak grip
5 mm	1190 Gs 119.0 mT	0.41 kg / 0.91 LBS 413.8 g / 4.1 N	weak grip
10 mm	382 Gs 38.2 mT	0.04 kg / 0.09 LBS 42.7 g / 0.4 N	weak grip
15 mm	156 Gs 15.6 mT	0.01 kg / 0.02 LBS 7.1 g / 0.1 N	weak grip
20 mm	76 Gs 7.6 mT	0.00 kg / 0.00 LBS 1.7 g / 0.0 N	weak grip
30 mm	26 Gs 2.6 mT	0.00 kg / 0.00 LBS 0.2 g / 0.0 N	weak grip
50 mm	6 Gs 0.6 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	weak grip

Magnetic force decreases drastically with every mm of distance. Remember that even the smallest gap (e.g., contamination, varnish, veneer) strongly reduces the pull force. Magnets hold strongest in perfect adhesion; distance kills the power. Observe how rapidly the parameters drop, when the magnet does not adhere tightly to the steel surface. When calculating the arrangement, avoid unnecessary gaps.

Table 2: Vertical capacity (wall)
MW 12x4 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.69 kg / 1.52 LBS 690.0 g / 6.8 N
1 mm	Stal (~0.2)	0.51 kg / 1.12 LBS 508.0 g / 5.0 N
2 mm	Stal (~0.2)	0.34 kg / 0.76 LBS 344.0 g / 3.4 N
3 mm	Stal (~0.2)	0.22 kg / 0.48 LBS 218.0 g / 2.1 N
5 mm	Stal (~0.2)	0.08 kg / 0.18 LBS 82.0 g / 0.8 N
10 mm	Stal (~0.2)	0.01 kg / 0.02 LBS 8.0 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 shows the theoretical force sufficient to initiate the downward movement of the magnet downwards against a vertical steel wall (assuming typical friction). This parameter depends on the gap size between the magnet and the metal.

Table 3: Vertical assembly (shearing) - vertical pull
MW 12x4 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	1.04 kg / 2.28 LBS 1035.0 g / 10.2 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.69 kg / 1.52 LBS 690.0 g / 6.8 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.35 kg / 0.76 LBS 345.0 g / 3.4 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	1.73 kg / 3.80 LBS 1725.0 g / 16.9 N

When placing a magnet on a vertical surface (e.g., a car body), it you can count on only approx. 1/5 of nominal attraction strength. Gravity and a low friction coefficient cause that holders slip easier than they pull off. Planning a hanger? Note that the sliding force is significantly lower than the perpendicular breakaway force. On a smooth steel, the magnet will give way down under a noticeably lighter weight. Utilizing a rubberized layer can drastically improve the result.

Table 4: Material efficiency (saturation) - sheet metal selection
MW 12x4 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.35 kg / 0.76 LBS 345.0 g / 3.4 N
1 mm	25%	0.86 kg / 1.90 LBS 862.5 g / 8.5 N
2 mm	50%	1.73 kg / 3.80 LBS 1725.0 g / 16.9 N
3 mm	75%	2.59 kg / 5.70 LBS 2587.5 g / 25.4 N
5 mm	100%	3.45 kg / 7.61 LBS 3450.0 g / 33.8 N
10 mm	100%	3.45 kg / 7.61 LBS 3450.0 g / 33.8 N
11 mm	100%	3.45 kg / 7.61 LBS 3450.0 g / 33.8 N
12 mm	100%	3.45 kg / 7.61 LBS 3450.0 g / 33.8 N

A thin sheet is incapable of focus the entire magnetic field, which squanders power of the holder. Should you install a neodymium to a too thin substrate, the magnetism will penetrate right through and the pull force will drop sharply. To squeeze 100% of this magnet's potential, you need a suitably thick element of steel. The saturation effect causes that on delicate walls (e.g., appliance housings), the product works worse. We advise picking the steel dimension from these parameters.

Table 5: Working in heat (stability) - thermal limit
MW 12x4 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	3.45 kg / 7.61 LBS 3450.0 g / 33.8 N	OK
40 °C	-2.2%	3.37 kg / 7.44 LBS 3374.1 g / 33.1 N	OK
60 °C	-4.4%	3.30 kg / 7.27 LBS 3298.2 g / 32.4 N
80 °C	-6.6%	3.22 kg / 7.10 LBS 3222.3 g / 31.6 N
100 °C	-28.8%	2.46 kg / 5.42 LBS 2456.4 g / 24.1 N

Ordinary NdFeB products lose strength past the thermal threshold. Protect against heat – heat can permanently destroy this magnet. With increasing heat, the magnet's power temporarily drops. Avoid using this magnet close to heaters higher than its working range. Ignoring the limit will result in destruction of magnetic properties.

*Important note: Thermal stability depends not only on the material grade, but also on the magnet's shape. Flat magnets (low permeance coefficient) are more susceptible to demagnetization under lower heat stress compared to rod magnets. Warning indicator in the table signals permanent field degradation for this specific geometry.

Table 6: Two magnets (attraction) - field range
MW 12x4 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Sliding Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	8.23 kg / 18.13 LBS 4 952 Gs	1.23 kg / 2.72 LBS 1234 g / 12.1 N	N/A
1 mm	7.16 kg / 15.79 LBS 6 410 Gs	1.07 kg / 2.37 LBS 1074 g / 10.5 N	6.45 kg / 14.21 LBS ~0 Gs
2 mm	6.07 kg / 13.38 LBS 5 900 Gs	0.91 kg / 2.01 LBS 910 g / 8.9 N	5.46 kg / 12.04 LBS ~0 Gs
3 mm	5.03 kg / 11.09 LBS 5 372 Gs	0.75 kg / 1.66 LBS 754 g / 7.4 N	4.53 kg / 9.98 LBS ~0 Gs
5 mm	3.29 kg / 7.25 LBS 4 342 Gs	0.49 kg / 1.09 LBS 493 g / 4.8 N	2.96 kg / 6.52 LBS ~0 Gs
10 mm	0.99 kg / 2.18 LBS 2 379 Gs	0.15 kg / 0.33 LBS 148 g / 1.5 N	0.89 kg / 1.96 LBS ~0 Gs
20 mm	0.10 kg / 0.22 LBS 764 Gs	0.02 kg / 0.03 LBS 15 g / 0.1 N	0.09 kg / 0.20 LBS ~0 Gs
50 mm	0.00 kg / 0.00 LBS 85 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 52 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 34 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 23 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 17 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 12 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs

Two magnets interact from a wider radius than a neodymium and metal setup. The connection of magnet-to-magnet creates a more powerful interaction and a wider radius of action. Designing a solid fastener? Apply two magnets instead of one magnet and a steel. Exercise caution that when connecting a pair of magnets, the pinch force is huge. The levitation is marginally weaker than the connection force, but still significant.
*The magnetic induction in repulsion mode reaches ~0 Gs in the exact middle of the gap (due to field cancellation).
Note: Figures demonstrate shear force of two identical magnets (friction ~0.15 for Ni-Ni layer).

Table 7: Protective zones (implants) - warnings
MW 12x4 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	5.5 cm
Hearing aid	10 Gs (1.0 mT)	4.5 cm
Timepiece	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

Powerful magnet radiation poses a serious hazard to electronic devices as well as pacemakers. These magnets produce a field that prevents correct functioning of digital equipment. Remember: the unseen radiation acts through matter and housings. Increased vigilance must be taken by people with cochlear implants and insulin pumps. Influence will be felt by: mechanical watches, remotes, speakers, and displays. Do not bring the product near payment cards, hard drives, or sensitive navigation tools.

Table 8: Dynamics (cracking risk) - warning
MW 12x4 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	25.55 km/h (7.10 m/s)	0.09 J
30 mm	25.73 km/h (7.15 m/s)	0.09 J
50 mm	25.73 km/h (7.15 m/s)	0.09 J
100 mm	25.73 km/h (7.15 m/s)	0.09 J

NdFeB products are prone to chipping – a violent impact against metal risks their cracking. Watch the impact speed – a magnet released freely speeds with massive force. Striking energy can trigger coating fragments or painful pinches to fingers. Be sure to control the product during mounting so it doesn't hit violently against the metal. A collision at high speed means shattering of the magnet. Use safety goggles when handling with large magnets.

Table 9: Surface protection spec
MW 12x4 / 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)

For outdoor applications, an epoxy coating is required; standard nickel is intended for indoor use. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Electrical data (Flux)
MW 12x4 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	4 114 Mx	41.1 µWb
P_c Coefficient	0.44	Low (Flat)

Flux value passing through the magnet pole. Essential parameter when building generators as well as sensors. P_c value defines the magnet's operating point.

Table 11: Submerged application
MW 12x4 / N38

Environment	Effective steel pull	Effect
Air (land)	3.45 kg	Standard
Water (riverbed)	3.95 kg (+0.50 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.

Water displaces steel, making heavy objects slightly lighter. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Wall mount (shear)

*Warning: On a vertical surface, the magnet holds just ~20% of its perpendicular strength.

2. Steel saturation

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

3. Heat tolerance

N38: the maximum material working temperature is 80°C. Permitted conditions also depend on the shape and magnetic circuit.

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.44

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%

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: 010019-2026

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984.00 zł brutto / pcs

The presented product is a very strong cylindrical magnet, composed of advanced NdFeB material, which, with dimensions of Ø12x4 mm, guarantees the highest energy density. This specific item boasts 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. 3.45 kg), this product is available off-the-shelf from our European logistics center, ensuring rapid order fulfillment. Additionally, its triple-layer Ni-Cu-Ni coating secures it against corrosion in typical operating conditions, ensuring an aesthetic appearance and durability for years.

It finds application in DIY projects, advanced automation, and broadly understood industry, serving as a positioning or actuating element. Thanks to the high power of 33.83 N with a weight of only 3.39 g, this rod is indispensable in electronics 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., 12.1 mm) using two-component epoxy glues. To ensure long-term durability in industry, specialized industrial adhesives are used, which are safe for nickel and fill the gap, guaranteeing high repeatability of the connection.

Choose the material grade together with the dimensions and working conditions. A grade designation alone does not determine the pull force of the finished magnet. Check the properties and working temperature of this specific model on its product card; contact us before ordering for an unusual application.

The presented product is a neodymium magnet with precisely defined parameters: diameter 12 mm and height 4 mm. The value of 33.83 N means that the magnet is capable of holding a weight many times exceeding its own mass of 3.39 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.

Advantages and disadvantages of Nd₂Fe₁₄B magnets.

Strengths

Apart from their notable magnetic energy, neodymium magnets have these key benefits:

They retain full power for nearly ten years – the drop is just ~1% (based on simulations),
They are resistant to demagnetization induced by external field influence,
The use of an aesthetic finish of noble metals (nickel, gold, silver) causes the element to look better,
The surface of neodymium magnets generates a intense magnetic field – this is a distinguishing feature,
Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
Thanks to modularity in designing and the ability to adapt to client solutions,
Universal use in electronics industry – they find application in data components, electric drive systems, advanced medical instruments, as well as other advanced devices.
Compactness – despite small sizes they generate large force, making them ideal for precision applications

Cons

Disadvantages of neodymium magnets:

Brittleness is one of their disadvantages. Upon intense impact they can break. We recommend keeping them in a special holder, which not only protects them against impacts but also increases their durability
Do not exceed this material temperature limit: 80°C. Overheating may permanently weaken the magnet.
Magnets exposed to a humid environment can corrode. Therefore when using outdoors, we advise using water-impermeable magnets made of rubber, plastic or other material resistant to moisture
Due to limitations in producing threads and complex shapes in magnets, we propose using cover - magnetic mechanism.
Possible danger resulting from small fragments of magnets are risky, when accidentally swallowed, which gains importance in the aspect of protecting the youngest. Additionally, small components of these devices 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

Pull force analysis

Maximum lifting force for a neodymium magnet – what contributes to it?

The force parameter is a theoretical maximum value executed under specific, ideal conditions:

with the use of a sheet made of low-carbon steel, ensuring maximum field concentration
possessing a thickness of at least 10 mm to ensure full flux closure
characterized by smoothness
without any insulating layer between the magnet and steel
during pulling in a direction perpendicular to the mounting surface
at temperature room level

Impact of factors on magnetic holding capacity in practice

It is worth knowing that the working load may be lower influenced by the following factors, starting with the most relevant:

Gap (betwixt the magnet and the metal), as even a microscopic distance (e.g. 0.5 mm) can cause a decrease in lifting capacity by up to 50% (this also applies to varnish, corrosion or debris).
Pull-off angle – remember that the magnet holds strongest perpendicularly. Under sliding down, the holding force drops significantly, often to levels of 20-30% of the maximum value.
Wall thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field passes through the material instead of converting into lifting capacity.
Plate material – mild steel attracts best. Alloy admixtures reduce magnetic properties and holding force.
Smoothness – full contact is obtained only on smooth steel. Rough texture create air cushions, weakening the magnet.
Temperature – temperature increase results in weakening of force. It is worth remembering the thermal limit for a given model.

Lifting capacity was assessed using a polished steel plate of optimal thickness (min. 20 mm), under perpendicular detachment force, in contrast under attempts to slide the magnet the holding force is lower. In addition, even a minimal clearance between the magnet and the plate lowers the lifting capacity.

Safe handling of NdFeB magnets

Do not give to children

Only for adults. Tiny parts pose a choking risk, leading to severe trauma. Store away from kids and pets.

Nickel allergy

It is widely known that the nickel plating (the usual finish) is a common allergen. If you have an allergy, avoid direct skin contact and select coated magnets.

Handling guide

Use magnets consciously. Their immense force can shock even professionals. Be vigilant and respect their force.

Warning for heart patients

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

Operating temperature

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

Safe distance

Device Safety: Strong magnets can ruin data carriers and delicate electronics (pacemakers, medical aids, mechanical watches).

Compass and GPS

Navigation devices and smartphones are highly susceptible to magnetic fields. Close proximity with a powerful NdFeB magnet can decalibrate the internal compass in your phone.

Pinching danger

Mind your fingers. Two powerful magnets will join immediately with a force of massive weight, destroying everything in their path. Exercise extreme caution!

Flammability

Mechanical processing of NdFeB material carries a risk of fire hazard. Neodymium dust oxidizes rapidly with oxygen and is difficult to extinguish.

Fragile material

NdFeB magnets are ceramic materials, meaning they are prone to chipping. Impact of two magnets leads to them breaking into small pieces.

Attention! More info about hazards in the article: Safety of working with magnets.

MW 12x4 / N38 - cylindrical magnet

Technical data - MW 12x4 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical analysis of the assembly - data

Table 1: Static force (force vs distance) - characteristics MW 12x4 / N38

Table 2: Vertical capacity (wall) MW 12x4 / N38

Table 3: Vertical assembly (shearing) - vertical pull MW 12x4 / N38

Table 4: Material efficiency (saturation) - sheet metal selection MW 12x4 / N38

Table 5: Working in heat (stability) - thermal limit MW 12x4 / N38

Table 6: Two magnets (attraction) - field range MW 12x4 / N38

Table 7: Protective zones (implants) - warnings MW 12x4 / N38

Table 8: Dynamics (cracking risk) - warning MW 12x4 / N38

Table 9: Surface protection spec MW 12x4 / N38

Table 10: Electrical data (Flux) MW 12x4 / N38

Table 11: Submerged application MW 12x4 / N38

1. Wall mount (shear)

2. Steel saturation

3. Heat tolerance

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

Chemical composition

Environmental data

Force (pull)

Magnetic Field

See also deals

SM 32x175 [2xM8] / N42 - magnetic separator

SM 28x150 [2xM8] / N52 - magnetic separator

UMGGZ 88x8.5 [M8] GZ / N38 - rubber magnetic holder external thread

SM 25x350 [2xM8] / N42 - magnetic separator

Advantages and disadvantages of Nd2Fe14B magnets.

Strengths

Cons

Pull force analysis

Maximum lifting force for a neodymium magnet – what contributes to it?

Impact of factors on magnetic holding capacity in practice

Safe handling of NdFeB magnets

Do not give to children

Nickel allergy

Handling guide

Warning for heart patients

Operating temperature

Safe distance

Compass and GPS

Pinching danger

Flammability

Fragile material

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs distance) - characteristics
MW 12x4 / N38

Table 2: Vertical capacity (wall)
MW 12x4 / N38

Table 3: Vertical assembly (shearing) - vertical pull
MW 12x4 / N38

Table 4: Material efficiency (saturation) - sheet metal selection
MW 12x4 / N38

Table 5: Working in heat (stability) - thermal limit
MW 12x4 / N38

Table 6: Two magnets (attraction) - field range
MW 12x4 / N38

Table 7: Protective zones (implants) - warnings
MW 12x4 / N38

Table 8: Dynamics (cracking risk) - warning
MW 12x4 / N38

Table 9: Surface protection spec
MW 12x4 / N38

Table 10: Electrical data (Flux)
MW 12x4 / N38

Table 11: Submerged application
MW 12x4 / N38

Advantages and disadvantages of Nd₂Fe₁₄B magnets.