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MW 8x5 / 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 010105

GTIN/EAN: 5906301811046

5.00

Diameter Ø

8 mm [±0,1 mm]

Height

5 mm [±0,1 mm]

Weight

1.88 g

Magnetization Direction

↑ axial

Load capacity

2.17 kg / 21.31 N

Magnetic Induction

483.41 mT / 4834 Gs

Coating

[NiCuNi] Nickel

check technical data »

0.836 ZŁ with VAT / pcs + price for transport

0.680 ZŁ net + 23% VAT / pcs

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Technical - MW 8x5 / N38 - cylindrical magnet

Specification / characteristics - MW 8x5 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010105
GTIN/EAN	5906301811046
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	5 mm [±0,1 mm]
Weight	1.88 g
Magnetization Direction	↑ axial
Load capacity ~ ?	2.17 kg / 21.31 N
Magnetic Induction ~ ?	483.41 mT / 4834 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 8x5 / N38 - cylindrical magnet

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

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

Physical modeling of the assembly - data

The following data are the outcome of a engineering analysis. Results were calculated on models for the material Nd₂Fe₁₄B. Real-world performance might slightly differ. Treat these data as a preliminary roadmap for designers.

Table 1: Static pull force (force vs gap) - interaction chart
MW 8x5 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	4830 Gs 483.0 mT	2.17 kg / 4.78 LBS 2170.0 g / 21.3 N	medium risk
1 mm	3655 Gs 365.5 mT	1.24 kg / 2.74 LBS 1242.8 g / 12.2 N	weak grip
2 mm	2610 Gs 261.0 mT	0.63 kg / 1.40 LBS 633.9 g / 6.2 N	weak grip
3 mm	1825 Gs 182.5 mT	0.31 kg / 0.68 LBS 310.0 g / 3.0 N	weak grip
5 mm	915 Gs 91.5 mT	0.08 kg / 0.17 LBS 77.9 g / 0.8 N	weak grip
10 mm	234 Gs 23.4 mT	0.01 kg / 0.01 LBS 5.1 g / 0.1 N	weak grip
15 mm	89 Gs 8.9 mT	0.00 kg / 0.00 LBS 0.7 g / 0.0 N	weak grip
20 mm	43 Gs 4.3 mT	0.00 kg / 0.00 LBS 0.2 g / 0.0 N	weak grip
30 mm	14 Gs 1.4 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	weak grip
50 mm	3 Gs 0.3 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	weak grip

Grip strength drops drastically with every mm of spacing. Keep in mind that even a very thin break (e.g., dirt, varnish, dust) strongly weakens the grip. Neodymiums operate strongest at the point of direct contact; distance nullifies the power. Analyze how flashily the load capacity fall, when the product does not adhere directly to the metal substrate. When designing the arrangement, eliminate unnecessary gaps.

Table 2: Sliding force (vertical surface)
MW 8x5 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.43 kg / 0.96 LBS 434.0 g / 4.3 N
1 mm	Stal (~0.2)	0.25 kg / 0.55 LBS 248.0 g / 2.4 N
2 mm	Stal (~0.2)	0.13 kg / 0.28 LBS 126.0 g / 1.2 N
3 mm	Stal (~0.2)	0.06 kg / 0.14 LBS 62.0 g / 0.6 N
5 mm	Stal (~0.2)	0.02 kg / 0.04 LBS 16.0 g / 0.2 N
10 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 2.0 g / 0.0 N
15 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 0.0 g / 0.0 N
20 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 0.0 g / 0.0 N
30 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 0.0 g / 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 0.0 g / 0.0 N

The table below indicates the theoretical force necessary to initiate the downward movement of the magnet down along a vertical steel plate (considering typical friction coefficient). This value is a function of the distance between the magnet and the metal.

Table 3: Wall mounting (shearing) - vertical pull
MW 8x5 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.65 kg / 1.44 LBS 651.0 g / 6.4 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.43 kg / 0.96 LBS 434.0 g / 4.3 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.22 kg / 0.48 LBS 217.0 g / 2.1 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	1.09 kg / 2.39 LBS 1085.0 g / 10.6 N

When placing a element on a upright wall (e.g., a fridge), it will only hold just about 20%-30% of its maximum pull force. Gravity as well as a weak degree of grip influence the fact that products move down faster than they pop off the substrate. Planning a wall mount? Consider that the shear force is much weaker than the perpendicular breakaway force. On a slippery surface, the holder will slide down under a significantly smaller weight. Utilizing a rubberized pad can significantly improve the result.

Table 4: Steel thickness (substrate influence) - sheet metal selection
MW 8x5 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.22 kg / 0.48 LBS 217.0 g / 2.1 N
1 mm	25%	0.54 kg / 1.20 LBS 542.5 g / 5.3 N
2 mm	50%	1.09 kg / 2.39 LBS 1085.0 g / 10.6 N
3 mm	75%	1.63 kg / 3.59 LBS 1627.5 g / 16.0 N
5 mm	100%	2.17 kg / 4.78 LBS 2170.0 g / 21.3 N
10 mm	100%	2.17 kg / 4.78 LBS 2170.0 g / 21.3 N
11 mm	100%	2.17 kg / 4.78 LBS 2170.0 g / 21.3 N
12 mm	100%	2.17 kg / 4.78 LBS 2170.0 g / 21.3 N

A thin sheet is unable to absorb the full magnetic flux, which squanders power of the holder. If you install a neodymium to a weak sheet, the magnetism will penetrate right through and the pull force will drop sharply. To squeeze the maximum of this neodymium's potential, you need a suitably thick element of steel. The material oversaturation means that on thin elements (e.g., appliance housings), the holder holds weaker. We suggest choosing the steel dimension according to the table below.

Table 5: Thermal resistance (stability) - power drop
MW 8x5 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	2.17 kg / 4.78 LBS 2170.0 g / 21.3 N	OK
40 °C	-2.2%	2.12 kg / 4.68 LBS 2122.3 g / 20.8 N	OK
60 °C	-4.4%	2.07 kg / 4.57 LBS 2074.5 g / 20.4 N	OK
80 °C	-6.6%	2.03 kg / 4.47 LBS 2026.8 g / 19.9 N
100 °C	-28.8%	1.55 kg / 3.41 LBS 1545.0 g / 15.2 N

Ordinary NdFeB products change their properties power past the thermal threshold. Watch out for overheating – heat can irreversibly destroy this product. With increasing heat, the neodymium's power briefly lowers. Avoid using this product in hot environments exceeding its working range. Ignoring the limit will result in irreversible degradation of magnetism.

*Important note: Temperature resistance depends not only on the material grade, as well as the dimension ratios. Flat magnets (pancake types) may lose charge permanently at lower temperatures than long magnets. Warning indicator in the table points to a risk of irreversible loss for this specific geometry.

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MW 8x5 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Strength (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	7.23 kg / 15.94 LBS 5 742 Gs	1.08 kg / 2.39 LBS 1084 g / 10.6 N	N/A
1 mm	5.58 kg / 12.31 LBS 8 490 Gs	0.84 kg / 1.85 LBS 838 g / 8.2 N	5.03 kg / 11.08 LBS ~0 Gs
2 mm	4.14 kg / 9.13 LBS 7 310 Gs	0.62 kg / 1.37 LBS 621 g / 6.1 N	3.73 kg / 8.21 LBS ~0 Gs
3 mm	2.98 kg / 6.58 LBS 6 207 Gs	0.45 kg / 0.99 LBS 448 g / 4.4 N	2.69 kg / 5.92 LBS ~0 Gs
5 mm	1.48 kg / 3.26 LBS 4 369 Gs	0.22 kg / 0.49 LBS 222 g / 2.2 N	1.33 kg / 2.93 LBS ~0 Gs
10 mm	0.26 kg / 0.57 LBS 1 830 Gs	0.04 kg / 0.09 LBS 39 g / 0.4 N	0.23 kg / 0.51 LBS ~0 Gs
20 mm	0.02 kg / 0.04 LBS 468 Gs	0.00 kg / 0.01 LBS 3 g / 0.0 N	0.02 kg / 0.03 LBS ~0 Gs
50 mm	0.00 kg / 0.00 LBS 47 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 29 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 19 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 13 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 9 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 7 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs

Two magnets attract each other from a much further distance than a magnet and sheet combination. The setup of magnet-to-magnet generates a stronger field and a larger range of action. Want to build a powerful holder? Utilize two neodymiums instead of a neodymium and a striker plate. Be careful that when attracting two neodymiums, the pinch force is extreme. The repulsion force is marginally weaker than the attraction, but still significant.
*Flux density in repulsion mode drops to ~0 Gs at the midpoint between the magnets (due to field cancellation).
* Estimates show sliding force of dual same magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Protective zones (implants) - precautionary measures
MW 8x5 / 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)	3.0 cm
Mobile device	40 Gs (4.0 mT)	2.5 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 is a serious hazard to electronic devices as well as medical implants. These magnets produce a field that disrupts operation of sensitive medical devices. Notice: the invisible magnetic field penetrates the body and housings. Exceptional care must be taken by people with hearing aids and drug dispensers. Influence will be felt by: automatic timepieces, car keys, membranes, and displays. Avoid contact with magnetic cards, hard drives, or precise measuring instruments.

Table 8: Dynamics (kinetic energy) - warning
MW 8x5 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	34.31 km/h (9.53 m/s)	0.09 J
30 mm	59.35 km/h (16.49 m/s)	0.26 J
50 mm	76.62 km/h (21.28 m/s)	0.43 J
100 mm	108.35 km/h (30.10 m/s)	0.85 J

NdFeB products are delicate – a violent impact against metal risks their cracking. Watch the impact speed – a magnet released freely becomes dangerous. Striking energy can cause material chips or painful pinches to fingers. Be sure to control the product during mounting 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. Use safety goggles when playing with powerful specimens.

Table 9: Anti-corrosion coating durability
MW 8x5 / 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. Note the thickness of the protective layer.

Table 10: Electrical data (Flux)
MW 8x5 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	2 450 Mx	24.5 µWb
P_c Coefficient	0.68	High (Stable)

Flux value passing through the pole surface. Essential parameter in coil applications and motors. The P_c coefficient defines the magnet's operating point.

Table 11: Physics of underwater searching
MW 8x5 / N38

Environment	Effective steel pull	Effect
Air (land)	2.17 kg	Standard
Water (riverbed)	2.48 kg (+0.31 kg buoyancy gain)	+14.5%

Rust risk: Remember to wipe the magnet thoroughly after removing it from water and apply a protective layer (e.g., oil) to avoid corrosion.

Contrary to myths, water does not block the magnetic field. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Shear force

*Warning: On a vertical surface, the magnet retains just approx. 20-30% of its perpendicular strength.

2. Steel saturation

*Thin metal sheet (e.g. computer case) severely reduces 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) = 0.68

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

Chemical composition

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

Sustainability

recyclability (EoL)	100%
recycled raw materials	~10% (pre-cons)
carbon footprint	low / zredukowany
waste code (EWC)	16 02 16

Safety card (GPSR)

responsible entity

Dhit sp. z o.o.

ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki

tel: +48 22 499 98 98 | e-mail: bok@dhit.pl

batch number/type

id: 010105-2025

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MPL 5x5x2 / N38 - lamellar magnet

0.308 ZŁ brutto / pcs

The presented product is an exceptionally strong cylinder magnet, manufactured from advanced NdFeB material, which, at dimensions of Ø8x5 mm, guarantees maximum efficiency. This specific item boasts an accuracy of ±0.1mm and industrial build quality, making it a perfect solution for professional engineers and designers. As a cylindrical magnet with significant force (approx. 2.17 kg), this product is available off-the-shelf from our warehouse in Poland, ensuring lightning-fast order fulfillment. Moreover, its triple-layer Ni-Cu-Ni coating shields it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.

It finds application in DIY projects, advanced robotics, and broadly understood industry, serving as a fastening or actuating element. Thanks to the high power of 21.31 N with a weight of only 1.88 g, this rod is indispensable in miniature devices and wherever every gram matters.

Due to the brittleness of the NdFeB material, you must not use force-fitting (so-called press-fit), as this risks immediate cracking of this precision component. 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.

Magnets N38 are suitable for the majority of applications in automation and machine building, where excessive miniaturization with maximum force is not required. If you need even stronger magnets in the same volume (Ø8x5), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our warehouse.

This model is characterized by dimensions Ø8x5 mm, which, at a weight of 1.88 g, makes it an element with high magnetic energy density. The value of 21.31 N means that the magnet is capable of holding a weight many times exceeding its own mass of 1.88 g. The product has a [NiCuNi] coating, which protects the surface against oxidation, giving it an aesthetic, silvery shine.

This rod magnet is magnetized axially (along the height of 5 mm), which means that the N and S poles are located on the flat, circular surfaces. 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 and cons of rare earth magnets.

Pros

Besides their exceptional field intensity, neodymium magnets offer the following advantages:

They retain attractive force for almost ten years – the loss is just ~1% (according to analyses),
Neodymium magnets are extremely resistant to demagnetization caused by external magnetic fields,
A magnet with a smooth gold surface is more attractive,
Magnetic induction on the working part of the magnet remains exceptional,
Thanks to resistance to high temperature, they are capable of working (depending on the shape) even at temperatures up to 230°C and higher...
Thanks to flexibility in constructing and the ability to customize to specific needs,
Universal use in advanced technology sectors – they are utilized in computer drives, brushless drives, precision medical tools, and multitasking production systems.
Thanks to concentrated force, small magnets offer high operating force, with minimal size,

Limitations

Cons of neodymium magnets: tips and applications.

At strong impacts they can crack, therefore we advise placing them in special holders. A metal housing provides additional protection against damage and increases the magnet's durability.
Neodymium magnets decrease their power under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
Magnets exposed to a humid environment can rust. Therefore when using outdoors, we advise using water-impermeable magnets made of rubber, plastic or other material resistant to moisture
Limited ability of making nuts in the magnet and complicated forms - recommended is cover - magnetic holder.
Possible danger related to microscopic parts of magnets pose a threat, when accidentally swallowed, which becomes key in the context of child safety. Furthermore, small elements of these products are able to complicate diagnosis medical when they are in the body.
High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which can limit application in large quantities

Holding force characteristics

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

The declared magnet strength represents the limit force, measured under ideal test conditions, meaning:

with the contact of a yoke made of low-carbon steel, ensuring maximum field concentration
whose transverse dimension reaches at least 10 mm
with an ideally smooth touching surface
with total lack of distance (no paint)
under vertical force direction (90-degree angle)
at ambient temperature room level

Determinants of practical lifting force of a magnet

It is worth knowing that the magnet holding may be lower depending on the following factors, starting with the most relevant:

Distance (between the magnet and the metal), since even a microscopic distance (e.g. 0.5 mm) leads to a decrease in lifting capacity by up to 50% (this also applies to varnish, rust or debris).
Load vector – highest force is reached only during perpendicular pulling. The resistance to sliding of the magnet along the plate is usually several times smaller (approx. 1/5 of the lifting capacity).
Substrate thickness – for full efficiency, the steel must be adequately massive. Thin sheet limits the lifting capacity (the magnet "punches through" it).
Material composition – different alloys reacts the same. Alloy additives worsen the attraction effect.
Surface condition – smooth surfaces guarantee perfect abutment, which increases field saturation. Rough surfaces reduce efficiency.
Operating temperature – NdFeB sinters have a sensitivity to temperature. When it is hot they lose power, and in frost gain strength (up to a certain limit).

Lifting capacity was determined using a smooth steel plate of suitable thickness (min. 20 mm), under vertically applied force, in contrast under attempts to slide the magnet the holding force is lower. Additionally, even a minimal clearance between the magnet’s surface and the plate decreases the holding force.

Warnings

Safe distance

Avoid bringing magnets near a purse, computer, or screen. The magnetism can permanently damage these devices and wipe information from cards.

Caution required

Before use, check safety instructions. Sudden snapping can break the magnet or injure your hand. Think ahead.

Avoid contact if allergic

Studies show that nickel (the usual finish) is a potent allergen. For allergy sufferers, avoid touching magnets with bare hands and choose versions in plastic housing.

Power loss in heat

Watch the temperature. Heating the magnet to high heat will destroy its magnetic structure and pulling force.

Compass and GPS

Navigation devices and mobile phones are highly sensitive to magnetic fields. Direct contact with a powerful NdFeB magnet can decalibrate the internal compass in your phone.

Bodily injuries

Large magnets can crush fingers in a fraction of a second. Under no circumstances place your hand betwixt two strong magnets.

Swallowing risk

Absolutely keep magnets away from children. Ingestion danger is high, and the consequences of magnets connecting inside the body are tragic.

Dust is flammable

Powder generated during grinding of magnets is self-igniting. Avoid drilling into magnets without proper cooling and knowledge.

Shattering risk

Despite metallic appearance, neodymium is delicate and cannot withstand shocks. Do not hit, as the magnet may crumble into hazardous fragments.

ICD Warning

For implant holders: Strong magnetic fields affect electronics. Keep at least 30 cm distance or ask another person to handle the magnets.

Safety First! Want to know more? Read our article: Why are neodymium magnets dangerous?

MW 8x5 / N38 - cylindrical magnet

Technical - MW 8x5 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical modeling of the assembly - data

Table 1: Static pull force (force vs gap) - interaction chart MW 8x5 / N38

Table 2: Sliding force (vertical surface) MW 8x5 / N38

Table 3: Wall mounting (shearing) - vertical pull MW 8x5 / N38

Table 4: Steel thickness (substrate influence) - sheet metal selection MW 8x5 / N38

Table 5: Thermal resistance (stability) - power drop MW 8x5 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system MW 8x5 / N38

Table 7: Protective zones (implants) - precautionary measures MW 8x5 / N38

Table 8: Dynamics (kinetic energy) - warning MW 8x5 / N38

Table 9: Anti-corrosion coating durability MW 8x5 / N38

Table 10: Electrical data (Flux) MW 8x5 / N38

Table 11: Physics of underwater searching MW 8x5 / N38

1. Shear force

2. Steel saturation

3. Power loss vs temp

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

Chemical composition

Sustainability

Force (pull)

Magnetic Induction

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Pros and cons of rare earth magnets.

Pros

Limitations

Holding force characteristics

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

Determinants of practical lifting force of a magnet

Warnings

Safe distance

Caution required

Avoid contact if allergic

Power loss in heat

Compass and GPS

Bodily injuries

Swallowing risk

Dust is flammable

Shattering risk

ICD Warning

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs gap) - interaction chart
MW 8x5 / N38

Table 2: Sliding force (vertical surface)
MW 8x5 / N38

Table 3: Wall mounting (shearing) - vertical pull
MW 8x5 / N38

Table 4: Steel thickness (substrate influence) - sheet metal selection
MW 8x5 / N38

Table 5: Thermal resistance (stability) - power drop
MW 8x5 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MW 8x5 / N38

Table 7: Protective zones (implants) - precautionary measures
MW 8x5 / N38

Table 8: Dynamics (kinetic energy) - warning
MW 8x5 / N38

Table 9: Anti-corrosion coating durability
MW 8x5 / N38

Table 10: Electrical data (Flux)
MW 8x5 / N38

Table 11: Physics of underwater searching
MW 8x5 / N38