Product available Ships today (order by 14:00)

MW 4x8 / 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 010079

GTIN/EAN: 5906301810780

5.00

Diameter Ø

4 mm [±0,1 mm]

Height

8 mm [±0,1 mm]

Weight

0.75 g

Magnetization Direction

↑ axial

Load capacity

0.35 kg / 3.48 N

Magnetic Induction

599.59 mT / 5996 Gs

Coating

[NiCuNi] Nickel

view technical data »

0.701 ZŁ with VAT / pcs + price for transport

0.570 ZŁ net + 23% VAT / pcs

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Technical data - MW 4x8 / N38 - cylindrical magnet

Specification / characteristics - MW 4x8 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010079
GTIN/EAN	5906301810780
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	4 mm [±0,1 mm]
Height	8 mm [±0,1 mm]
Weight	0.75 g
Magnetization Direction	↑ axial
Load capacity ~ ?	0.35 kg / 3.48 N
Magnetic Induction ~ ?	599.59 mT / 5996 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 4x8 / N38 - cylindrical magnet

properties	values	units
remenance Br [min. - max.] ?	12.2-12.6	kGs
remenance Br [min. - max.] ?	1220-1260	mT
coercivity bHc ?	10.8-11.5	kOe
coercivity bHc ?	860-915	kA/m
actual internal force iHc	≥ 12	kOe
actual internal force iHc	≥ 955	kA/m
energy density [min. - max.] ?	36-38	BH max MGOe
energy density [min. - max.] ?	287-303	BH max KJ/m
max. temperature ?	≤ 80	°C

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

properties	values	units
Vickers hardness	≥550	Hv
Density	≥7.4	g/cm³
Curie Temperature TC	312 - 380	°C
Curie Temperature TF	593 - 716	°F
Specific resistance	150	μΩ⋅cm
Bending strength	250	MPa
Compressive strength	1000~1100	MPa
Thermal expansion parallel (∥) to orientation (M)	(3-4) x 10^-6	°C^-1
Thermal expansion perpendicular (⊥) to orientation (M)	-(1-3) x 10^-6	°C^-1
Young's modulus	1.7 x 10⁴	kg/mm²

Technical analysis of the product - technical parameters

Presented information are the direct effect of a mathematical simulation. Results are based on models for the material Nd₂Fe₁₄B. Operational performance may differ. Treat these data as a supplementary guide when designing systems.

Table 1: Static force (pull vs distance) - power drop
MW 4x8 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	5984 Gs 598.4 mT	0.35 kg / 0.77 pounds 350.0 g / 3.4 N	low risk
1 mm	3280 Gs 328.0 mT	0.11 kg / 0.23 pounds 105.1 g / 1.0 N	low risk
2 mm	1696 Gs 169.6 mT	0.03 kg / 0.06 pounds 28.1 g / 0.3 N	low risk
3 mm	941 Gs 94.1 mT	0.01 kg / 0.02 pounds 8.7 g / 0.1 N	low risk
5 mm	371 Gs 37.1 mT	0.00 kg / 0.00 pounds 1.3 g / 0.0 N	low risk
10 mm	82 Gs 8.2 mT	0.00 kg / 0.00 pounds 0.1 g / 0.0 N	low risk
15 mm	31 Gs 3.1 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	low risk
20 mm	15 Gs 1.5 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	low risk
30 mm	5 Gs 0.5 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	low risk
50 mm	1 Gs 0.1 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	low risk

Magnetic force drops drastically with every subsequent millimeter of spacing. Keep in mind that even a microscopic distance (e.g., contamination, paint, rust) significantly diminishes the holding power. Magnets work most effectively during direct contact; air break weakens the power. Analyze how rapidly the load capacity plummet, when the product does not adhere flatly to the metal substrate. When planning the assembly, eliminate redundant distances.

Table 2: Shear hold (vertical surface)
MW 4x8 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.07 kg / 0.15 pounds 70.0 g / 0.7 N
1 mm	Stal (~0.2)	0.02 kg / 0.05 pounds 22.0 g / 0.2 N
2 mm	Stal (~0.2)	0.01 kg / 0.01 pounds 6.0 g / 0.1 N
3 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 2.0 g / 0.0 N
5 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N
10 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 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 presents the approximate weight limit required to initiate the downward movement of the magnet down on a upright metal surface (assuming standard friction). This parameter is relative to the separation distance between the magnet and the surface.

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MW 4x8 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.11 kg / 0.23 pounds 105.0 g / 1.0 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.07 kg / 0.15 pounds 70.0 g / 0.7 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.03 kg / 0.08 pounds 35.0 g / 0.3 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.18 kg / 0.39 pounds 175.0 g / 1.7 N

When hanging a holder on a upright wall (e.g., a fridge), it you can count on just about 20%-30% of nominal attraction strength. Gravity as well as a low friction coefficient mean that magnets slide down easier than they pop off the substrate. Want to create a vertical fastening? Remember that the sliding force is significantly lower than the maximum static pull force. On a smooth steel, the holder will slide down under a much lighter weight. Using a rubber layer can drastically raise the stability.

Table 4: Material efficiency (substrate influence) - power losses
MW 4x8 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.03 kg / 0.08 pounds 35.0 g / 0.3 N
1 mm	25%	0.09 kg / 0.19 pounds 87.5 g / 0.9 N
2 mm	50%	0.18 kg / 0.39 pounds 175.0 g / 1.7 N
3 mm	75%	0.26 kg / 0.58 pounds 262.5 g / 2.6 N
5 mm	100%	0.35 kg / 0.77 pounds 350.0 g / 3.4 N
10 mm	100%	0.35 kg / 0.77 pounds 350.0 g / 3.4 N
11 mm	100%	0.35 kg / 0.77 pounds 350.0 g / 3.4 N
12 mm	100%	0.35 kg / 0.77 pounds 350.0 g / 3.4 N

A thin sheet cannot focus the entire magnetic field, which wastes potential of the holder. Should you mount a strong magnet to a too thin substrate, the field will penetrate right through and the pull force will drop sharply. To squeeze 100% of this neodymium's power, you require a sufficiently solid piece of metal. The saturation phenomenon means that on sheet metal structures (e.g., thin profiles), the holder shows lower pull force. We suggest choosing the steel thickness according to the table below.

Table 5: Working in heat (stability) - thermal limit
MW 4x8 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	0.35 kg / 0.77 pounds 350.0 g / 3.4 N	OK
40 °C	-2.2%	0.34 kg / 0.75 pounds 342.3 g / 3.4 N	OK
60 °C	-4.4%	0.33 kg / 0.74 pounds 334.6 g / 3.3 N	OK
80 °C	-6.6%	0.33 kg / 0.72 pounds 326.9 g / 3.2 N
100 °C	-28.8%	0.25 kg / 0.55 pounds 249.2 g / 2.4 N

Standard neodymium magnets change their properties parameters past the thermal threshold. Watch out for overheating – excessive heat can irreversibly demagnetize this magnet. As the temperature rises, the magnet's capacity briefly drops. Refrain from using this magnet close to ovens higher than its working range. Too high temperature will result in irreversible degradation of magnetism.

*Engineering note: Heat tolerance is determined by both grade, but also on the magnet's shape. Flat magnets (low Pc) may lose charge permanently at lower temperatures compared to rod magnets. The danger warning in the table indicates a risk of irreversible loss for this specific geometry.

Table 6: Two magnets (repulsion) - field collision
MW 4x8 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Sliding Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	2.77 kg / 6.12 pounds 6 121 Gs	0.42 kg / 0.92 pounds 416 g / 4.1 N	N/A
1 mm	1.59 kg / 3.51 pounds 9 063 Gs	0.24 kg / 0.53 pounds 239 g / 2.3 N	1.43 kg / 3.16 pounds ~0 Gs
2 mm	0.83 kg / 1.84 pounds 6 559 Gs	0.12 kg / 0.28 pounds 125 g / 1.2 N	0.75 kg / 1.65 pounds ~0 Gs
3 mm	0.43 kg / 0.94 pounds 4 694 Gs	0.06 kg / 0.14 pounds 64 g / 0.6 N	0.38 kg / 0.85 pounds ~0 Gs
5 mm	0.12 kg / 0.27 pounds 2 498 Gs	0.02 kg / 0.04 pounds 18 g / 0.2 N	0.11 kg / 0.24 pounds ~0 Gs
10 mm	0.01 kg / 0.02 pounds 743 Gs	0.00 kg / 0.00 pounds 2 g / 0.0 N	0.01 kg / 0.02 pounds ~0 Gs
20 mm	0.00 kg / 0.00 pounds 165 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
50 mm	0.00 kg / 0.00 pounds 17 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 10 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 7 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 5 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 3 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 3 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 much further distance than a neodymium and metal combination. The connection of two magnets produces a massive flux and a larger range of action. Want to build a strong closure? Apply two magnets instead of one magnet and a striker plate. Remember that when connecting a pair of magnets, the collision energy is huge. The repulsion force is a bit weaker than the attraction, but still large.
*The magnetic induction in repulsion mode drops to ~0 Gs in the exact middle between the magnets (due to field cancellation).
* Figures refer to shear force of two matching magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Safety (HSE) (electronics) - warnings
MW 4x8 / N38

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

Powerful magnet radiation is a real danger to IT equipment and pacemakers. These neodymiums produce a field that prevents correct functioning of sensitive medical devices. Remember: the unseen radiation acts through matter and plastic. Special caution must be taken by people with hearing aids and drug dispensers. Influence will be felt by: automatic timepieces, remotes, speakers, and screens. Avoid contact with magnetic cards, hard drives, or sensitive navigation tools.

Table 8: Dynamics (kinetic energy) - collision effects
MW 4x8 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	21.79 km/h (6.05 m/s)	0.01 J
30 mm	37.74 km/h (10.48 m/s)	0.04 J
50 mm	48.72 km/h (13.53 m/s)	0.07 J
100 mm	68.89 km/h (19.14 m/s)	0.14 J

NdFeB products are delicate – a collision with steel risks their cracking. Watch the impact speed – a neodymium left loose speeds with massive force. Kinetic force can cause material chips or injury to skin. Hold the magnet firmly during installation so it doesn't slam with momentum against the metal. A contact at a velocity of dozens of km/h ends with a crack of the magnet. Use safety goggles when working with powerful specimens.

Table 9: Corrosion resistance
MW 4x8 / 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. Note the thickness of the protective layer.

Table 10: Construction data (Flux)
MW 4x8 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	836 Mx	8.4 µWb
P_c Coefficient	1.21	High (Stable)

Flux value emitted by the magnet pole. Key data in coil applications as well as sensors. P_c value determines the magnet's operating point.

Table 11: Submerged application
MW 4x8 / N38

Environment	Effective steel pull	Effect
Air (land)	0.35 kg	Standard
Water (riverbed)	0.40 kg (+0.05 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.

In water, the magnet feels stronger thanks to Archimedes' principle. 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 just ~20% of its nominal pull.

2. Steel thickness impact

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

3. Power loss vs temp

*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) = 1.21

This simulation demonstrates the magnetic stability of the selected magnet under specific geometric conditions. The solid red line represents the demagnetization curve (material potential), while the dashed blue line is the load line based on the magnet's geometry. The P_c (Permeance Coefficient), also known as the load line slope, is a dimensionless value that describes the relationship between the magnet's shape and its magnetic stability. The intersection of these two lines (the black dot) is the operating point — it determines the actual magnetic flux density generated by the magnet in this specific configuration. A higher P_c value means the magnet is more 'slender' (tall relative to its area), resulting in a higher operating point and better resistance to irreversible demagnetization caused by external fields or temperature. A value of 0.42 is relatively low (typical for flat magnets), meaning the operating point is closer to the 'knee' of the curve — caution is advised when operating at temperatures near the maximum limit to avoid strength loss.

Technical specification and ecology

Chemical composition

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

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: 010079-2026

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This product is an incredibly powerful cylinder magnet, produced from durable NdFeB material, which, at dimensions of Ø4x8 mm, guarantees optimal power. The MW 4x8 / N38 component features an accuracy of ±0.1mm and industrial build quality, making it an excellent solution for professional engineers and designers. As a magnetic rod with impressive force (approx. 0.35 kg), this product is available off-the-shelf from our warehouse in Poland, ensuring rapid order fulfillment. Furthermore, its Ni-Cu-Ni coating effectively protects it against corrosion in typical operating conditions, guaranteeing an aesthetic appearance and durability for years.

This model is perfect for building generators, advanced Hall effect sensors, and efficient magnetic separators, where maximum induction on a small surface counts. Thanks to the high power of 3.48 N with a weight of only 0.75 g, this rod is indispensable in miniature devices and wherever every gram matters.

Due to the delicate structure of the ceramic sinter, you must not use force-fitting (so-called press-fit), as this risks immediate cracking of this precision component. To ensure long-term durability in industry, anaerobic resins are used, which are safe for nickel and fill the gap, guaranteeing high repeatability of the connection.

Magnets N38 are suitable for the majority of applications in modeling and machine building, where excessive miniaturization with maximum force is not required. If you need the strongest magnets in the same volume (Ø4x8), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our warehouse.

This model is characterized by dimensions Ø4x8 mm, which, at a weight of 0.75 g, makes it an element with impressive magnetic energy density. The value of 3.48 N means that the magnet is capable of holding a weight many times exceeding its own mass of 0.75 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 4 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 through the diameter if your project requires it.

Advantages as well as disadvantages of neodymium magnets.

Pros

Besides their stability, neodymium magnets are valued for these benefits:

They virtually do not lose power, because even after 10 years the decline in efficiency is only ~1% (according to literature),
Magnets very well resist against loss of magnetization caused by external fields,
The use of an shiny finish of noble metals (nickel, gold, silver) causes the element to present itself better,
The surface of neodymium magnets generates a maximum magnetic field – this is a key feature,
Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the form) even at high temperatures reaching 230°C or more...
Possibility of precise creating and adapting to complex conditions,
Universal use in advanced technology sectors – they find application in computer drives, drive modules, medical devices, and complex engineering applications.
Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in small dimensions, which makes them useful in small systems

Cons

Problematic aspects of neodymium magnets: tips and applications.

At very strong impacts they can break, therefore we advise placing them in steel cases. A metal housing provides additional protection against damage and increases the magnet's durability.
We warn that neodymium magnets can lose their power at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 230°C.
Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material resistant to moisture, when using outdoors
Limited possibility of creating threads in the magnet and complex shapes - preferred is cover - mounting mechanism.
Potential hazard to health – tiny shards of magnets pose a threat, when accidentally swallowed, which is particularly important in the aspect of protecting the youngest. Furthermore, small components of these devices are able to complicate diagnosis medical after entering the body.
High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which increases costs of application in large quantities

Holding force characteristics

Detachment force of the magnet in optimal conditions – what contributes to it?

Magnet power was determined for ideal contact conditions, taking into account:

with the contact of a sheet made of special test steel, ensuring full magnetic saturation
whose thickness reaches at least 10 mm
characterized by even structure
with total lack of distance (no coatings)
for force applied at a right angle (pull-off, not shear)
at ambient temperature approx. 20 degrees Celsius

Determinants of lifting force in real conditions

Real force is influenced by specific conditions, mainly (from priority):

Space between surfaces – even a fraction of a millimeter of separation (caused e.g. by varnish or dirt) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
Loading method – catalog parameter refers to pulling vertically. When slipping, the magnet exhibits much less (typically approx. 20-30% of nominal force).
Substrate thickness – to utilize 100% power, the steel must be adequately massive. Thin sheet restricts the attraction force (the magnet "punches through" it).
Steel type – mild steel attracts best. Higher carbon content lower magnetic permeability and holding force.
Surface finish – ideal contact is possible only on polished steel. Rough texture reduce the real contact area, weakening the magnet.
Thermal environment – heating the magnet causes a temporary drop of force. Check the maximum operating temperature for a given model.

Holding force was tested on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, whereas under shearing force the load capacity is reduced by as much as 5 times. In addition, even a minimal clearance between the magnet and the plate lowers the lifting capacity.

Safety rules for work with NdFeB magnets

Precision electronics

A powerful magnetic field interferes with the functioning of compasses in smartphones and GPS navigation. Keep magnets close to a smartphone to avoid breaking the sensors.

Medical interference

Warning for patients: Strong magnetic fields affect electronics. Maintain minimum 30 cm distance or request help to work with the magnets.

Machining danger

Fire hazard: Neodymium dust is explosive. Do not process magnets without safety gear as this may cause fire.

Danger to the youngest

Always store magnets out of reach of children. Choking hazard is significant, and the effects of magnets clamping inside the body are fatal.

Magnets are brittle

Protect your eyes. Magnets can fracture upon violent connection, launching sharp fragments into the air. We recommend safety glasses.

Crushing risk

Protect your hands. Two large magnets will join instantly with a force of several hundred kilograms, crushing everything in their path. Exercise extreme caution!

Do not underestimate power

Before starting, check safety instructions. Uncontrolled attraction can destroy the magnet or hurt your hand. Think ahead.

Electronic hazard

Avoid bringing magnets close to a wallet, computer, or TV. The magnetic field can irreversibly ruin these devices and erase data from cards.

Allergy Warning

Some people suffer from a hypersensitivity to Ni, which is the typical protective layer for neodymium magnets. Frequent touching can result in an allergic reaction. It is best to use protective gloves.

Power loss in heat

Regular neodymium magnets (N-type) lose magnetization when the temperature goes above 80°C. The loss of strength is permanent.

Caution! Looking for details? Check our post: Why are neodymium magnets dangerous?

MW 4x8 / N38 - cylindrical magnet

Technical data - MW 4x8 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical analysis of the product - technical parameters

Table 1: Static force (pull vs distance) - power drop MW 4x8 / N38

Table 2: Shear hold (vertical surface) MW 4x8 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces MW 4x8 / N38

Table 4: Material efficiency (substrate influence) - power losses MW 4x8 / N38

Table 5: Working in heat (stability) - thermal limit MW 4x8 / N38

Table 6: Two magnets (repulsion) - field collision MW 4x8 / N38

Table 7: Safety (HSE) (electronics) - warnings MW 4x8 / N38

Table 8: Dynamics (kinetic energy) - collision effects MW 4x8 / N38

Table 9: Corrosion resistance MW 4x8 / N38

Table 10: Construction data (Flux) MW 4x8 / N38

Table 11: Submerged application MW 4x8 / N38

1. Sliding resistance

2. Steel thickness impact

3. Power loss vs temp

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

Chemical composition

Environmental data

Force (pull)

Magnetic Induction

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Advantages as well as disadvantages of neodymium magnets.

Pros

Cons

Holding force characteristics

Detachment force of the magnet in optimal conditions – what contributes to it?

Determinants of lifting force in real conditions

Safety rules for work with NdFeB magnets

Precision electronics

Medical interference

Machining danger

Danger to the youngest

Magnets are brittle

Crushing risk

Do not underestimate power

Electronic hazard

Allergy Warning

Power loss in heat

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (pull vs distance) - power drop
MW 4x8 / N38

Table 2: Shear hold (vertical surface)
MW 4x8 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MW 4x8 / N38

Table 4: Material efficiency (substrate influence) - power losses
MW 4x8 / N38

Table 5: Working in heat (stability) - thermal limit
MW 4x8 / N38

Table 6: Two magnets (repulsion) - field collision
MW 4x8 / N38

Table 7: Safety (HSE) (electronics) - warnings
MW 4x8 / N38

Table 8: Dynamics (kinetic energy) - collision effects
MW 4x8 / N38

Table 9: Corrosion resistance
MW 4x8 / N38

Table 10: Construction data (Flux)
MW 4x8 / N38

Table 11: Submerged application
MW 4x8 / N38