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MW 8x4 / 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 010104

GTIN/EAN: 5906301811039

5.00

Diameter Ø

8 mm [±0,1 mm]

Height

4 mm [±0,1 mm]

Weight

1.51 g

Magnetization Direction

↑ axial

Load capacity

2.04 kg / 20.00 N

Magnetic Induction

437.78 mT / 4378 Gs

Coating

[NiCuNi] Nickel

technical specifications »

0.701 ZŁ with VAT / pcs + price for transport

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Technical details - MW 8x4 / N38 - cylindrical magnet

Specification / characteristics - MW 8x4 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010104
GTIN/EAN	5906301811039
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	8 mm [±0,1 mm]
Height	4 mm [±0,1 mm]
Weight	1.51 g
Magnetization Direction	↑ axial
Load capacity ~ ?	2.04 kg / 20.00 N
Magnetic Induction ~ ?	437.78 mT / 4378 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 8x4 / N38 - cylindrical magnet

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

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

Engineering analysis of the assembly - report

The following information constitute the outcome of a mathematical analysis. Values are based on models for the class Nd₂Fe₁₄B. Operational conditions may differ. Use these calculations as a supplementary guide when designing systems.

Table 1: Static pull force (pull vs gap) - power drop
MW 8x4 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	4374 Gs 437.4 mT	2.04 kg / 4.50 pounds 2040.0 g / 20.0 N	strong
1 mm	3338 Gs 333.8 mT	1.19 kg / 2.62 pounds 1187.8 g / 11.7 N	weak grip
2 mm	2386 Gs 238.6 mT	0.61 kg / 1.34 pounds 607.0 g / 6.0 N	weak grip
3 mm	1663 Gs 166.3 mT	0.29 kg / 0.65 pounds 294.9 g / 2.9 N	weak grip
5 mm	824 Gs 82.4 mT	0.07 kg / 0.16 pounds 72.4 g / 0.7 N	weak grip
10 mm	205 Gs 20.5 mT	0.00 kg / 0.01 pounds 4.5 g / 0.0 N	weak grip
15 mm	76 Gs 7.6 mT	0.00 kg / 0.00 pounds 0.6 g / 0.0 N	weak grip
20 mm	36 Gs 3.6 mT	0.00 kg / 0.00 pounds 0.1 g / 0.0 N	weak grip
30 mm	12 Gs 1.2 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 per each millimeter of distance. Note that even a microscopic distance (e.g., contamination, paint, veneer) strongly reduces the pull force. Magnets hold optimally at the point of direct contact; air break kills the force. Notice how rapidly the pull force drop, when the magnet does not adhere tightly to the steel surface. When designing the mounting, eliminate redundant distances.

Table 2: Sliding hold (wall)
MW 8x4 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.41 kg / 0.90 pounds 408.0 g / 4.0 N
1 mm	Stal (~0.2)	0.24 kg / 0.52 pounds 238.0 g / 2.3 N
2 mm	Stal (~0.2)	0.12 kg / 0.27 pounds 122.0 g / 1.2 N
3 mm	Stal (~0.2)	0.06 kg / 0.13 pounds 58.0 g / 0.6 N
5 mm	Stal (~0.2)	0.01 kg / 0.03 pounds 14.0 g / 0.1 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 estimated shear load needed to start the shifting of the magnet vertically against a upright steel plate (assuming typical friction). This value is relative to the gap size between the magnet and the surface.

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MW 8x4 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.61 kg / 1.35 pounds 612.0 g / 6.0 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.41 kg / 0.90 pounds 408.0 g / 4.0 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.20 kg / 0.45 pounds 204.0 g / 2.0 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	1.02 kg / 2.25 pounds 1020.0 g / 10.0 N

When placing a element on a upright wall (e.g., a board), it will only hold barely about 1/5 of its maximum pull force. Gravitational force as well as a low friction coefficient cause that products slide down faster than they pop off the substrate. Want to create a wall mount? Consider that the shear force is noticeably lower than the perpendicular breakaway force. On a smooth steel, the element will give way down under a significantly smaller cargo. Utilizing a rubberized layer can effectively raise the stability.

Table 4: Material efficiency (substrate influence) - power losses
MW 8x4 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.20 kg / 0.45 pounds 204.0 g / 2.0 N
1 mm	25%	0.51 kg / 1.12 pounds 510.0 g / 5.0 N
2 mm	50%	1.02 kg / 2.25 pounds 1020.0 g / 10.0 N
3 mm	75%	1.53 kg / 3.37 pounds 1530.0 g / 15.0 N
5 mm	100%	2.04 kg / 4.50 pounds 2040.0 g / 20.0 N
10 mm	100%	2.04 kg / 4.50 pounds 2040.0 g / 20.0 N
11 mm	100%	2.04 kg / 4.50 pounds 2040.0 g / 20.0 N
12 mm	100%	2.04 kg / 4.50 pounds 2040.0 g / 20.0 N

A thin sheet cannot take in the full magnetic flux, which wastes potential of the magnet. Should you attach a powerful product to a too thin substrate, the field will penetrate right through and the pull force will drop sharply. To achieve the maximum of this magnet's power, you require a sufficiently solid piece of metal. The saturation effect means that on delicate walls (e.g., car bodies), the holder holds weaker. We advise picking the steel dimension from these parameters.

Table 5: Thermal stability (stability) - power drop
MW 8x4 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	2.04 kg / 4.50 pounds 2040.0 g / 20.0 N	OK
40 °C	-2.2%	2.00 kg / 4.40 pounds 1995.1 g / 19.6 N	OK
60 °C	-4.4%	1.95 kg / 4.30 pounds 1950.2 g / 19.1 N
80 °C	-6.6%	1.91 kg / 4.20 pounds 1905.4 g / 18.7 N
100 °C	-28.8%	1.45 kg / 3.20 pounds 1452.5 g / 14.2 N

Classic neodymiums lose power above the temperature limit. Avoid high temperatures – heat can permanently damage this magnet. As the temperature rises, the neodymium's force momentarily lowers. Do not use this magnet close to heaters higher than its operating temperature limit. Too high temperature will lead to permanent loss of magnetism.

*Important note: Temperature resistance depends not only on the material grade, and the Permeance Coefficient Pc. Flat magnets (low permeance coefficient) are more susceptible to demagnetization at lower temperatures than long magnets. The danger warning in the table signals permanent field degradation for this particular item.

Table 6: Two magnets (repulsion) - field range
MW 8x4 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	5.93 kg / 13.07 pounds 5 531 Gs	0.89 kg / 1.96 pounds 889 g / 8.7 N	N/A
1 mm	4.63 kg / 10.21 pounds 7 730 Gs	0.69 kg / 1.53 pounds 694 g / 6.8 N	4.17 kg / 9.18 pounds ~0 Gs
2 mm	3.45 kg / 7.61 pounds 6 675 Gs	0.52 kg / 1.14 pounds 518 g / 5.1 N	3.11 kg / 6.85 pounds ~0 Gs
3 mm	2.49 kg / 5.50 pounds 5 674 Gs	0.37 kg / 0.82 pounds 374 g / 3.7 N	2.25 kg / 4.95 pounds ~0 Gs
5 mm	1.23 kg / 2.72 pounds 3 989 Gs	0.18 kg / 0.41 pounds 185 g / 1.8 N	1.11 kg / 2.45 pounds ~0 Gs
10 mm	0.21 kg / 0.46 pounds 1 648 Gs	0.03 kg / 0.07 pounds 32 g / 0.3 N	0.19 kg / 0.42 pounds ~0 Gs
20 mm	0.01 kg / 0.03 pounds 410 Gs	0.00 kg / 0.00 pounds 2 g / 0.0 N	0.01 kg / 0.03 pounds ~0 Gs
50 mm	0.00 kg / 0.00 pounds 39 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 24 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 15 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 11 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 8 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 6 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs

Two magnets attract each other from a significantly greater distance than a neodymium and metal combination. The connection of two magnets generates a stronger field and a wider radius of performance. Planning to create a powerful holder? Apply two magnets instead of one magnet and a striker plate. Exercise caution that when attracting two neodymiums, the collision energy is extreme. The levitation is marginally weaker than the connection force, but still significant.
*Field value between like poles reaches ~0 Gs at the geometric center between the magnets (caused by magnetic field nullification).
Note: Estimates apply to friction force of two same magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Hazards (implants) - precautionary measures
MW 8x4 / N38

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

Powerful magnet radiation poses a real danger to electronic devices and medical implants. These NdFeB products produce a flux that disrupts operation of sensitive medical devices. Remember: the invisible magnetic field penetrates the body and glass. Exceptional care must be taken by people with hearing aids and drug dispensers. Influence will be felt by: automatic timepieces, remotes, speakers, and displays. Avoid contact with magnetic cards, hard drives, or precise measuring instruments.

Table 8: Impact energy (kinetic energy) - collision effects
MW 8x4 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	37.12 km/h (10.31 m/s)	0.08 J
30 mm	64.21 km/h (17.83 m/s)	0.24 J
50 mm	82.89 km/h (23.02 m/s)	0.40 J
100 mm	117.22 km/h (32.56 m/s)	0.80 J

Neodymium magnets are prone to chipping – a collision with steel causes immediate chipping. Control the attraction moment – a magnet released freely becomes dangerous. Striking energy can cause material chips or injury to skin. Always hold the magnet during mounting so it doesn't slam with momentum against the steel surface. A contact at a velocity of dozens of km/h means shattering of the magnet. Wear eye protection when handling with large magnets.

Table 9: Surface protection spec
MW 8x4 / 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. Note the thickness of the protective layer.

Table 10: Construction data (Flux)
MW 8x4 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	2 233 Mx	22.3 µWb
P_c Coefficient	0.59	Low (Flat)

Total magnetic flux emitted by the magnet pole. Essential parameter in coil applications and motors. The P_c coefficient defines the magnet's operating point.

Table 11: Physics of underwater searching
MW 8x4 / N38

Environment	Effective steel pull	Effect
Air (land)	2.04 kg	Standard
Water (riverbed)	2.34 kg (+0.30 kg buoyancy gain)	+14.5%

Warning: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.

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

*Note: On a vertical wall, the magnet retains only ~20% of its nominal pull.

2. Steel thickness impact

*Thin steel (e.g. computer case) drastically limits the holding force.

3. Power loss vs temp

*For N38 grade, 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) = 0.59

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

Engineering data and GPSR

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%

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: 010104-2026

Measurement Calculator

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SM 32x225 [2xM8] / N52 - magnetic separator

676.50 ZŁ brutto / pcs

The presented product is an extremely powerful cylindrical magnet, produced from durable NdFeB material, which, with dimensions of Ø8x4 mm, guarantees optimal power. This specific item is characterized by a tolerance of ±0.1mm and professional build quality, making it an ideal solution for the most demanding engineers and designers. As a cylindrical magnet with significant force (approx. 2.04 kg), this product is in stock from our warehouse in Poland, ensuring rapid order fulfillment. Moreover, its Ni-Cu-Ni coating shields it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.

It successfully proves itself in DIY projects, advanced automation, and broadly understood industry, serving as a positioning or actuating element. Thanks to the pull force of 20.00 N with a weight of only 1.51 g, this cylindrical magnet is indispensable in miniature devices and wherever every gram matters.

Since our magnets have a very precise dimensions, the best method is to glue them into holes with a slightly larger diameter (e.g., 8.1 mm) using epoxy glues. To ensure stability in industry, anaerobic resins are used, which do not react with the nickel coating and fill the gap, guaranteeing high repeatability of the connection.

Magnets NdFeB grade N38 are strong enough 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 (Ø8x4), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our store.

This model is characterized by dimensions Ø8x4 mm, which, at a weight of 1.51 g, makes it an element with impressive magnetic energy density. The value of 20.00 N means that the magnet is capable of holding a weight many times exceeding its own mass of 1.51 g. The product has a [NiCuNi] coating, which secures it against external factors, 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 8 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.

Pros as well as cons of Nd₂Fe₁₄B magnets.

Pros

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

They virtually do not lose strength, because even after ten years the performance loss is only ~1% (in laboratory conditions),
Magnets very well defend themselves against loss of magnetization caused by foreign field sources,
By using a shiny layer of silver, the element acquires an proper look,
Magnetic induction on the working layer of the magnet remains extremely intense,
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 flexibility in forming and the ability to customize to complex applications,
Significant place in modern technologies – they find application in HDD drives, electric drive systems, medical devices, also technologically advanced constructions.
Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in small dimensions, which makes them useful in compact constructions

Limitations

Cons of neodymium magnets: tips and applications.

Brittleness is one of their disadvantages. Upon strong impact they can break. We recommend keeping them in a special holder, which not only protects them against impacts but also increases their durability
Neodymium magnets demagnetize 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 extremely resistant to heat
Magnets exposed to a humid environment can corrode. Therefore during using outdoors, we advise using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
Limited possibility of producing nuts in the magnet and complicated forms - preferred is a housing - mounting mechanism.
Possible danger to health – tiny shards of magnets pose a threat, if swallowed, which becomes key in the context of child safety. Furthermore, small elements of these devices can disrupt the diagnostic process medical in case of swallowing.
High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which can limit application in large quantities

Lifting parameters

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

The specified lifting capacity represents the limit force, measured under ideal test conditions, specifically:

with the contact of a yoke made of special test steel, ensuring maximum field concentration
with a thickness minimum 10 mm
with an ground contact surface
without any air gap between the magnet and steel
for force acting at a right angle (pull-off, not shear)
at ambient temperature room level

Determinants of practical lifting force of a magnet

Please note that the application force will differ subject to the following factors, starting with the most relevant:

Distance – the presence of any layer (paint, dirt, gap) interrupts the magnetic circuit, which lowers capacity rapidly (even by 50% at 0.5 mm).
Load vector – maximum parameter is reached only during perpendicular pulling. The resistance to sliding of the magnet along the plate is standardly several times lower (approx. 1/5 of the lifting capacity).
Steel thickness – too thin plate does not accept the full field, causing part of the power to be lost to the other side.
Material composition – not every steel reacts the same. High carbon content weaken the attraction effect.
Surface structure – the smoother and more polished the plate, the larger the contact zone and higher the lifting capacity. Roughness creates an air distance.
Thermal environment – temperature increase results in weakening of induction. Check the maximum operating temperature for a given model.

Lifting capacity was determined by applying a steel plate with a smooth surface of optimal thickness (min. 20 mm), under perpendicular pulling force, however under shearing force the holding force is lower. Additionally, even a slight gap between the magnet and the plate decreases the holding force.

Safe handling of neodymium magnets

ICD Warning

Patients with a heart stimulator should maintain an large gap from magnets. The magnetism can disrupt the operation of the implant.

Safe operation

Handle magnets with awareness. Their huge power can shock even professionals. Be vigilant and respect their power.

Choking Hazard

Neodymium magnets are not toys. Eating multiple magnets can lead to them attracting across intestines, which constitutes a severe health hazard and necessitates immediate surgery.

Magnet fragility

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

Allergic reactions

Certain individuals experience a hypersensitivity to nickel, which is the typical protective layer for neodymium magnets. Frequent touching may cause skin redness. We strongly advise use protective gloves.

Demagnetization risk

Avoid heat. Neodymium magnets are susceptible to heat. If you need resistance above 80°C, inquire about HT versions (H, SH, UH).

Dust is flammable

Dust produced during cutting of magnets is combustible. Do not drill into magnets unless you are an expert.

Threat to electronics

Avoid bringing magnets near a wallet, laptop, or TV. The magnetism can irreversibly ruin these devices and erase data from cards.

GPS Danger

Remember: rare earth magnets generate a field that interferes with precision electronics. Maintain a separation from your phone, tablet, and navigation systems.

Pinching danger

Pinching hazard: The pulling power is so great that it can result in blood blisters, crushing, and even bone fractures. Use thick gloves.

Safety First! Learn more about risks in the article: Safety of working with magnets.

MW 8x4 / N38 - cylindrical magnet

Technical details - MW 8x4 / 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 8x4 / N38

Table 2: Sliding hold (wall) MW 8x4 / N38

Table 3: Wall mounting (sliding) - behavior on slippery surfaces MW 8x4 / N38

Table 4: Material efficiency (substrate influence) - power losses MW 8x4 / N38

Table 5: Thermal stability (stability) - power drop MW 8x4 / N38

Table 6: Two magnets (repulsion) - field range MW 8x4 / N38

Table 7: Hazards (implants) - precautionary measures MW 8x4 / N38

Table 8: Impact energy (kinetic energy) - collision effects MW 8x4 / N38

Table 9: Surface protection spec MW 8x4 / N38

Table 10: Construction data (Flux) MW 8x4 / N38

Table 11: Physics of underwater searching MW 8x4 / N38

1. Sliding resistance

2. Steel thickness impact

3. Power loss vs temp

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

Material specification

Sustainability

Pulling force

Magnetic Field

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Pros as well as cons of Nd2Fe14B magnets.

Pros

Limitations

Lifting parameters

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

Determinants of practical lifting force of a magnet

Safe handling of neodymium magnets

ICD Warning

Safe operation

Choking Hazard

Magnet fragility

Allergic reactions

Demagnetization risk

Dust is flammable

Threat to electronics

GPS Danger

Pinching danger

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (pull vs gap) - power drop
MW 8x4 / N38

Table 2: Sliding hold (wall)
MW 8x4 / N38

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MW 8x4 / N38

Table 4: Material efficiency (substrate influence) - power losses
MW 8x4 / N38

Table 5: Thermal stability (stability) - power drop
MW 8x4 / N38

Table 6: Two magnets (repulsion) - field range
MW 8x4 / N38

Table 7: Hazards (implants) - precautionary measures
MW 8x4 / N38

Table 8: Impact energy (kinetic energy) - collision effects
MW 8x4 / N38

Table 9: Surface protection spec
MW 8x4 / N38

Table 10: Construction data (Flux)
MW 8x4 / N38

Table 11: Physics of underwater searching
MW 8x4 / N38

Pros as well as cons of Nd₂Fe₁₄B magnets.