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MW 10x3 zestaw 100 szt. / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010543

GTIN/EAN: 5906301815341

Load capacity 2.15 kg / 21.08 N Magnetic Induction 318.70 mT / 3187 Gs

Diameter Ø: 10 mm [±0,1 mm]
Height: 3 mm [±0,1 mm]
Weight: 177 g
Magnetization Direction: ↑ axial
Coating: [NiCuNi] Nickel

How we measure these parameters — certificates and measurements

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81.29 zł net / pcs

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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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Physical properties - MW 10x3 zestaw 100 szt. / N38 - cylindrical magnet

Specification / characteristics - MW 10x3 zestaw 100 szt. / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010543
GTIN/EAN	5906301815341
Distributor	Dhit sp. z o.o.
Country of origin	Poland / China / Germany
Customs code	85059029
Diameter Ø	10 mm [±0,1 mm]
Height	3 mm [±0,1 mm]
Weight	177 g
Magnetization Direction	↑ axial
Load capacity ~ ?	2.15 kg / 21.08 N
Magnetic Induction ~ ?	318.70 mT / 3187 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 10x3 zestaw 100 szt. / 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

Engineering analysis of the assembly - report

Presented data are the outcome of a mathematical analysis. Values are based on models for the class Nd₂Fe₁₄B. Real-world performance might slightly differ from theoretical values. Treat these data as a preliminary roadmap when designing systems.

Table 1: Static pull force (pull vs gap) - power drop
MW 10x3 zestaw 100 szt. / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	3185 Gs 318.5 mT	2.15 kg / 4.74 pounds 2150.0 g / 21.1 N	warning
1 mm	2657 Gs 265.7 mT	1.50 kg / 3.30 pounds 1496.2 g / 14.7 N	weak grip
2 mm	2081 Gs 208.1 mT	0.92 kg / 2.02 pounds 918.1 g / 9.0 N	weak grip
3 mm	1573 Gs 157.3 mT	0.52 kg / 1.16 pounds 524.4 g / 5.1 N	weak grip
5 mm	874 Gs 87.4 mT	0.16 kg / 0.36 pounds 161.7 g / 1.6 N	weak grip
10 mm	241 Gs 24.1 mT	0.01 kg / 0.03 pounds 12.3 g / 0.1 N	weak grip
15 mm	92 Gs 9.2 mT	0.00 kg / 0.00 pounds 1.8 g / 0.0 N	weak grip
20 mm	44 Gs 4.4 mT	0.00 kg / 0.00 pounds 0.4 g / 0.0 N	weak grip
30 mm	14 Gs 1.4 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	weak grip
50 mm	3 Gs 0.3 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	weak grip

Magnetic force decreases sharply with every mm of gap. Keep in mind that even the smallest gap (e.g., dirt, paint, dust) strongly reduces the pull force. Magnets hold most effectively in perfect adhesion; distance kills the power. Observe how rapidly the pull force fall, when the product does not touch flatly to the steel surface. When designing the arrangement, eliminate additional spacers.

Table 2: Slippage hold (vertical surface)
MW 10x3 zestaw 100 szt. / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Raw steel (µ ≈ 0.2)	0.43 kg / 0.95 pounds 430.0 g / 4.2 N
1 mm	Raw steel (µ ≈ 0.2)	0.30 kg / 0.66 pounds 300.0 g / 2.9 N
2 mm	Raw steel (µ ≈ 0.2)	0.18 kg / 0.41 pounds 184.0 g / 1.8 N
3 mm	Raw steel (µ ≈ 0.2)	0.10 kg / 0.23 pounds 104.0 g / 1.0 N
5 mm	Raw steel (µ ≈ 0.2)	0.03 kg / 0.07 pounds 32.0 g / 0.3 N
10 mm	Raw steel (µ ≈ 0.2)	0.00 kg / 0.00 pounds 2.0 g / 0.0 N
15 mm	Raw steel (µ ≈ 0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N
20 mm	Raw steel (µ ≈ 0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N
30 mm	Raw steel (µ ≈ 0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N
50 mm	Raw steel (µ ≈ 0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N

The following data presents the theoretical holding capacity required to cause the downward movement of the magnet vertically along a vertical metal surface (assuming typical friction coefficient). The holding force varies with the distance between the magnet and the surface.

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MW 10x3 zestaw 100 szt. / N38

Surface type	Friction coefficient / %	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% of nominal force	0.64 kg / 1.42 pounds 645.0 g / 6.3 N
Painted steel (standard)	µ = 0.2 20% of nominal force	0.43 kg / 0.95 pounds 430.0 g / 4.2 N
Oily/slippery steel	µ = 0.1 10% of nominal force	0.22 kg / 0.47 pounds 215.0 g / 2.1 N
Magnet with anti-slip rubber	µ = 0.5 50% of nominal force	1.08 kg / 2.37 pounds 1075.0 g / 10.5 N

When placing a element on a vertical surface (e.g., a board), it will maintain just about 1/5 of its maximum pull force. Gravity as well as a low friction coefficient influence the fact that products slide down faster than they pull off. Want to create a vertical fastening? Remember that the shear force is much weaker than the maximum static pull force. On a smooth steel, the holder will slide down under a significantly smaller weight. Using a rubber pad can drastically increase the grip.

Table 4: Steel thickness (saturation) - power losses
MW 10x3 zestaw 100 szt. / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.22 kg / 0.47 pounds 215.0 g / 2.1 N
1 mm	25%	0.54 kg / 1.18 pounds 537.5 g / 5.3 N
2 mm	50%	1.08 kg / 2.37 pounds 1075.0 g / 10.5 N
3 mm	75%	1.61 kg / 3.55 pounds 1612.5 g / 15.8 N
5 mm	100%	2.15 kg / 4.74 pounds 2150.0 g / 21.1 N
10 mm	100%	2.15 kg / 4.74 pounds 2150.0 g / 21.1 N
11 mm	100%	2.15 kg / 4.74 pounds 2150.0 g / 21.1 N
12 mm	100%	2.15 kg / 4.74 pounds 2150.0 g / 21.1 N

A too thin steel is not enough to absorb the entire magnetic field, which wastes potential of the magnet. If you mount a strong magnet to a thin surface, the magnetism will penetrate right through and the attraction force will be weaker. To achieve 100% of this neodymium's power, you need a suitably thick backing of metal. The saturation effect causes that on thin elements (e.g., thin profiles), the magnet shows lower pull force. We suggest choosing the steel cross-section according to the table below.

Table 5: Working in heat (material behavior) - power drop
MW 10x3 zestaw 100 szt. / N38

Magnet temperature (°C)	Force change relative to 20°C	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	2.15 kg / 4.74 pounds 2150.0 g / 21.1 N	Estimate
40 °C	-4.4%	2.06 kg / 4.53 pounds 2056.4 g / 20.2 N	Estimate
60 °C	-8.6%	1.96 kg / 4.33 pounds 1965.0 g / 19.3 N	Estimate
80 °C	-12.8%	1.88 kg / 4.13 pounds 1875.6 g / 18.4 N	Material limit
100 °C	—	—	Out of range — no model

The table estimates the reversible force change relative to 20°C, assuming a Br coefficient of -0.11%/°C and force proportional to Br². This is a simplified model with unchanged contact and geometry, not a measurement. Above the material limit, neither force nor irreversible magnetization loss is predicted.

The temperature limit comes from this product’s material data. Permissible conditions also depend on geometry and the magnetic circuit. Without B-H curves for the specific grade and temperature, Pc alone does not determine irreversible demagnetization. Values within the material range do not guarantee the allowable temperature of the complete assembly.

Table 6: Magnet-Magnet interaction (repulsion) - forces in the system
MW 10x3 zestaw 100 szt. / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	4.91 kg / 10.83 pounds 4 754 Gs	0.74 kg / 1.62 pounds 737 g / 7.2 N	N/A
1 mm	4.18 kg / 9.22 pounds 5 877 Gs	0.63 kg / 1.38 pounds 627 g / 6.2 N	3.76 kg / 8.30 pounds ~0 Gs
2 mm	3.42 kg / 7.54 pounds 5 314 Gs	0.51 kg / 1.13 pounds 513 g / 5.0 N	3.08 kg / 6.78 pounds ~0 Gs
3 mm	2.71 kg / 5.98 pounds 4 732 Gs	0.41 kg / 0.90 pounds 407 g / 4.0 N	2.44 kg / 5.38 pounds ~0 Gs
5 mm	1.59 kg / 3.52 pounds 3 630 Gs	0.24 kg / 0.53 pounds 239 g / 2.3 N	1.44 kg / 3.16 pounds ~0 Gs
10 mm	0.37 kg / 0.81 pounds 1 747 Gs	0.06 kg / 0.12 pounds 55 g / 0.5 N	0.33 kg / 0.73 pounds ~0 Gs
20 mm	0.03 kg / 0.06 pounds 483 Gs	0.00 kg / 0.01 pounds 4 g / 0.0 N	0.03 kg / 0.06 pounds ~0 Gs
50 mm	0.00 kg / 0.00 pounds 48 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 29 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 19 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 magnets interact from a wider radius than a magnet and sheet setup. Such a system of two magnets generates a stronger field and a larger range of performance. Planning to create a solid fastener? Apply two magnets instead of a neodymium and a steel. Remember that when connecting a pair of magnets, the pinch force is massive. The levitation is slightly lower than the connection force, but still significant.
*The magnetic induction for N-N configuration drops to ~0 Gs at the geometric center between the magnets (caused by magnetic field nullification).
Note: Estimates apply to friction force of dual same neodymium magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Axial field levels — not safety zones
MW 10x3 zestaw 100 szt. / N38

Field level (Gs)	mT	Model distance (cm)
< 5 Gs	< 0.5 mT	4.5 cm
< 10 Gs	< 1.0 mT	3.5 cm
< 20 Gs	< 2.0 mT	3.0 cm
< 40 Gs	< 4.0 mT	2.5 cm
< 50 Gs	< 5.0 mT	2.0 cm
< 400 Gs	< 40.0 mT	1.0 cm
< 600 Gs	< 60.0 mT	1.0 cm

Reference field levels for a model of one magnet, on its axis in air, with a 5 mm distance step. These are not device immunity limits or safe distances for implants. Do not use this table to assess the safety of a pacemaker, defibrillator or other implant; follow the device manufacturer’s and your clinician’s guidance. Steel and other magnets change the field distribution.

Table 8: Dynamics (cracking risk) - collision effects
MW 10x3 zestaw 100 szt. / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	2.58 km/h (0.72 m/s)	0.05 J
30 mm	2.59 km/h (0.72 m/s)	0.05 J
50 mm	2.59 km/h (0.72 m/s)	0.05 J
100 mm	2.59 km/h (0.72 m/s)	0.05 J

NdFeB products are very brittle – a strong collision with metal risks their cracking. Watch the impact speed – a magnet released freely speeds with massive force. Kinetic force can trigger coating fragments or injury to fingers. Be sure to control the product during bringing near metal so it doesn't hit violently against the steel surface. A contact at a velocity of dozens of km/h means shattering of the neodymium. Wear safety glasses when working with powerful specimens.

Table 9: Surface protection spec
MW 10x3 zestaw 100 szt. / 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. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Construction data (Flux)
MW 10x3 zestaw 100 szt. / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	2 694 Mx	26.9 µWb
P_c Coefficient	0.40	Low (Flat)

Flux value emitted by the pole surface. Key data when building generators as well as sensors. P_c value defines the magnet's operating point.

Table 11: Submerged application
MW 10x3 zestaw 100 szt. / N38

Environment	Effective steel pull	Effect
Air (land)	2.15 kg	Standard
Water (riverbed)	2.46 kg (+0.31 kg buoyancy gain)	+14.5%

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. Buoyancy helps in lifting finds.

1. Shear force

*Warning: On a vertical wall, the magnet retains just approx. 20-30% of its max power.

2. Steel thickness impact

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

3. Power loss vs temp

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) = 0.40

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

Material specification

iron (Fe)	64% – 68%
neodymium (Nd)	29% – 32%
boron (B)	1.1% – 1.2%
dysprosium (Dy)	0.5% – 2.0%
coating (Ni-Cu-Ni)	< 0.05%

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: 010543-2026

Measurement Calculator

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This product is an exceptionally strong rod magnet, composed of durable NdFeB material, which, at dimensions of Ø10x3 mm, guarantees maximum efficiency. This specific item boasts high dimensional repeatability and industrial build quality, making it a perfect solution for the most demanding engineers and designers. As a cylindrical magnet with impressive force (approx. 2.15 kg), this product is available off-the-shelf from our warehouse in Poland, ensuring quick order fulfillment. Furthermore, its Ni-Cu-Ni coating secures it against corrosion in typical operating conditions, ensuring an aesthetic appearance and durability for years.

It successfully proves itself in DIY projects, advanced robotics, and broadly understood industry, serving as a positioning or actuating element. Thanks to the high power of 21.08 N with a weight of only 177 g, this rod is indispensable in miniature devices and wherever low weight is crucial.

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., 10.1 mm) using two-component 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 durability 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 10 mm and height 3 mm. The key parameter here is the lifting capacity amounting to approximately 2.15 kg (force ~21.08 N), which, with such defined dimensions, proves the high grade of the NdFeB material. 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 10 mm. Such an arrangement is standard 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 diametrically if your project requires it.

Pros as well as cons of Nd₂Fe₁₄B magnets.

Advantages

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

They have constant strength, and over more than 10 years their attraction force decreases symbolically – ~1% (in testing),
They do not lose their magnetic properties even under external field action,
In other words, due to the shiny surface of gold, the element becomes visually attractive,
Neodymium magnets achieve maximum magnetic induction on a their surface, which allows for strong attraction,
Through (adequate) combination of ingredients, they can achieve high thermal resistance, enabling action at temperatures approaching 230°C and above...
Considering the potential of accurate forming and adaptation to specialized needs, neodymium magnets can be manufactured in a broad palette of geometric configurations, which amplifies use scope,
Significant place in modern technologies – they are commonly used in magnetic memories, electromotive mechanisms, diagnostic systems, also technologically advanced constructions.
Relatively small size with high pulling force – neodymium magnets offer high power in compact dimensions, which allows their use in compact constructions

Cons

What to avoid - cons of neodymium magnets: tips and applications.

To avoid cracks upon strong impacts, we recommend using special steel housings. Such a solution secures the magnet and simultaneously increases its durability.
Do not exceed this material temperature limit: 80°C. Overheating may permanently weaken the magnet.
When exposed to humidity, magnets usually rust. To use them in conditions outside, it is recommended to use protective magnets, such as those in rubber or plastics, which secure oxidation as well as corrosion.
Limited ability of making threads in the magnet and complicated shapes - recommended is casing - mounting mechanism.
Health risk to health – tiny shards of magnets are risky, if swallowed, which becomes key in the context of child health protection. Furthermore, small elements of these devices are able to complicate diagnosis medical in case of swallowing.
With budget limitations the cost of neodymium magnets is a challenge,

Holding force characteristics

Highest magnetic holding force – what affects it?

The declared magnet strength concerns the maximum value, measured under laboratory conditions, namely:

on a plate made of structural steel, optimally conducting the magnetic flux
whose thickness is min. 10 mm
with an polished touching surface
without the slightest clearance between the magnet and steel
for force acting at a right angle (in the magnet axis)
in stable room temperature

Impact of factors on magnetic holding capacity in practice

It is worth knowing that the magnet holding will differ depending on elements below, in order of importance:

Clearance – existence of any layer (paint, tape, air) interrupts the magnetic circuit, which reduces capacity steeply (even by 50% at 0.5 mm).
Force direction – remember that the magnet has greatest strength perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the nominal value.
Steel thickness – insufficiently thick plate causes magnetic saturation, causing part of the power to be wasted into the air.
Chemical composition of the base – mild steel gives the best results. Higher carbon content reduce magnetic permeability and lifting capacity.
Surface quality – the more even the plate, the better the adhesion and stronger the hold. Roughness acts like micro-gaps.
Temperature influence – hot environment weakens magnetic field. Too high temperature can permanently demagnetize the magnet.

Lifting capacity testing was conducted on a smooth plate of optimal thickness, under perpendicular forces, in contrast under attempts to slide the magnet the load capacity is reduced by as much as fivefold. In addition, even a minimal clearance between the magnet and the plate reduces the holding force.

H&S for magnets

This is not a toy

Strictly store magnets out of reach of children. Ingestion danger is high, and the consequences of magnets clamping inside the body are life-threatening.

Nickel coating and allergies

Allergy Notice: The Ni-Cu-Ni coating consists of nickel. If an allergic reaction occurs, cease handling magnets and wear gloves.

Powerful field

Handle with care. Rare earth magnets attract from a long distance and snap with huge force, often quicker than you can react.

Crushing risk

Large magnets can crush fingers instantly. Never place your hand betwixt two strong magnets.

Phone sensors

A strong magnetic field negatively affects the functioning of compasses in phones and GPS navigation. Maintain magnets close to a smartphone to avoid damaging the sensors.

Demagnetization risk

Do not exceed the maximum operating temperature stated in the specifications of the particular product. The limit depends on the material, geometry and operating arrangement; there is no single threshold for all neodymium magnets. Overheating can permanently weaken a magnet.

Data carriers

Data protection: Neodymium magnets can damage payment cards and sensitive devices (heart implants, hearing aids, timepieces).

Warning for heart patients

For implant holders: Powerful magnets disrupt electronics. Keep at least 30 cm distance or ask another person to work with the magnets.

Fire risk

Fire hazard: Rare earth powder is highly flammable. Do not process magnets without safety gear as this risks ignition.

Risk of cracking

Despite metallic appearance, the material is delicate and cannot withstand shocks. Do not hit, as the magnet may crumble into sharp, dangerous pieces.

Important! More info about hazards in the article: Magnet Safety Guide.

MW 10x3 zestaw 100 szt. / N38 - cylindrical magnet

Physical properties - MW 10x3 zestaw 100 szt. / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering analysis of the assembly - report

Table 1: Static pull force (pull vs gap) - power drop MW 10x3 zestaw 100 szt. / N38

Table 2: Slippage hold (vertical surface) MW 10x3 zestaw 100 szt. / N38

Table 3: Wall mounting (shearing) - behavior on slippery surfaces MW 10x3 zestaw 100 szt. / N38

Table 4: Steel thickness (saturation) - power losses MW 10x3 zestaw 100 szt. / N38

Table 5: Working in heat (material behavior) - power drop MW 10x3 zestaw 100 szt. / N38

Table 6: Magnet-Magnet interaction (repulsion) - forces in the system MW 10x3 zestaw 100 szt. / N38

Table 7: Axial field levels — not safety zones MW 10x3 zestaw 100 szt. / N38

Table 8: Dynamics (cracking risk) - collision effects MW 10x3 zestaw 100 szt. / N38

Table 9: Surface protection spec MW 10x3 zestaw 100 szt. / N38

Table 10: Construction data (Flux) MW 10x3 zestaw 100 szt. / N38

Table 11: Submerged application MW 10x3 zestaw 100 szt. / N38

1. Shear force

2. Steel thickness impact

3. Power loss vs temp

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

Material specification

Ecology and recycling (GPSR)

Magnet pull force

Magnetic Field

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SM 32x425 [2xM8] / N42 - magnetic separator

MP 12x8/4x3 / N38 - ring magnet

MPL 20x8x4 / N38 - lamellar magnet

Pros as well as cons of Nd2Fe14B magnets.

Advantages

Cons

Holding force characteristics

Highest magnetic holding force – what affects it?

Impact of factors on magnetic holding capacity in practice

H&S for magnets

This is not a toy

Nickel coating and allergies

Powerful field

Crushing risk

Phone sensors

Demagnetization risk

Data carriers

Warning for heart patients

Fire risk

Risk of cracking

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (pull vs gap) - power drop
MW 10x3 zestaw 100 szt. / N38

Table 2: Slippage hold (vertical surface)
MW 10x3 zestaw 100 szt. / N38

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MW 10x3 zestaw 100 szt. / N38

Table 4: Steel thickness (saturation) - power losses
MW 10x3 zestaw 100 szt. / N38

Table 5: Working in heat (material behavior) - power drop
MW 10x3 zestaw 100 szt. / N38

Table 6: Magnet-Magnet interaction (repulsion) - forces in the system
MW 10x3 zestaw 100 szt. / N38

Table 7: Axial field levels — not safety zones
MW 10x3 zestaw 100 szt. / N38

Table 8: Dynamics (cracking risk) - collision effects
MW 10x3 zestaw 100 szt. / N38

Table 9: Surface protection spec
MW 10x3 zestaw 100 szt. / N38

Table 10: Construction data (Flux)
MW 10x3 zestaw 100 szt. / N38

Table 11: Submerged application
MW 10x3 zestaw 100 szt. / N38

Pros as well as cons of Nd₂Fe₁₄B magnets.