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MW 8x20 / N38 - cylindrical magnet

Name: Dhit sp. z o.o.
Address: Kościuszki 6A, Ożarów Mazowiecki, mazowieckie, 05-850, PL
Telephone: +48 22 499 98 98
Price range: 1-6500 PLN
Rating: 5

cylindrical magnet

Catalog no 010475

GTIN/EAN: 5906301811138

5.00

Diameter Ø

8 mm [±0,1 mm]

Height

20 mm [±0,1 mm]

Weight

7.54 g

Magnetization Direction

→ diametrical

Load capacity

1.30 kg / 12.71 N

Magnetic Induction

607.01 mT / 6070 Gs

Coating

[NiCuNi] Nickel

see technical specifications »

4.60 ZŁ with VAT / pcs + price for transport

3.74 ZŁ net + 23% VAT / pcs

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Technical parameters of the product - MW 8x20 / N38 - cylindrical magnet

Specification / characteristics - MW 8x20 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010475
GTIN/EAN	5906301811138
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	20 mm [±0,1 mm]
Weight	7.54 g
Magnetization Direction	→ diametrical
Load capacity ~ ?	1.30 kg / 12.71 N
Magnetic Induction ~ ?	607.01 mT / 6070 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 8x20 / 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 modeling of the assembly - data

Presented values represent the result of a engineering simulation. Results rely on algorithms for the class Nd₂Fe₁₄B. Actual parameters may deviate from the simulation results. Treat these data as a supplementary guide for designers.

Table 1: Static force (force vs gap) - characteristics
MW 8x20 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	6064 Gs 606.4 mT	1.30 kg / 2.87 pounds 1300.0 g / 12.8 N	weak grip
1 mm	4587 Gs 458.7 mT	0.74 kg / 1.64 pounds 743.7 g / 7.3 N	weak grip
2 mm	3327 Gs 332.7 mT	0.39 kg / 0.86 pounds 391.4 g / 3.8 N	weak grip
3 mm	2388 Gs 238.8 mT	0.20 kg / 0.44 pounds 201.6 g / 2.0 N	weak grip
5 mm	1281 Gs 128.1 mT	0.06 kg / 0.13 pounds 58.0 g / 0.6 N	weak grip
10 mm	389 Gs 38.9 mT	0.01 kg / 0.01 pounds 5.4 g / 0.1 N	weak grip
15 mm	169 Gs 16.9 mT	0.00 kg / 0.00 pounds 1.0 g / 0.0 N	weak grip
20 mm	90 Gs 9.0 mT	0.00 kg / 0.00 pounds 0.3 g / 0.0 N	weak grip
30 mm	35 Gs 3.5 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	weak grip
50 mm	10 Gs 1.0 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	weak grip

Magnetic force drops drastically per each millimeter of spacing. Note that even a microscopic distance (e.g., dirt, varnish, rust) noticeably reduces the pull force. Neodymiums work most effectively in perfect adhesion; distance weakens the power. See how quickly the load capacity fall, when the product does not touch tightly to the metal substrate. When planning the mounting, discard additional spacers.

Table 2: Shear hold (wall)
MW 8x20 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.26 kg / 0.57 pounds 260.0 g / 2.6 N
1 mm	Stal (~0.2)	0.15 kg / 0.33 pounds 148.0 g / 1.5 N
2 mm	Stal (~0.2)	0.08 kg / 0.17 pounds 78.0 g / 0.8 N
3 mm	Stal (~0.2)	0.04 kg / 0.09 pounds 40.0 g / 0.4 N
5 mm	Stal (~0.2)	0.01 kg / 0.03 pounds 12.0 g / 0.1 N
10 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 2.0 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

This section shows the estimated force required to cause the downward movement of the magnet downwards on a upright steel plate (considering standard friction). This value is a function of the air gap between the magnet and the metal.

Table 3: Wall mounting (shearing) - vertical pull
MW 8x20 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.39 kg / 0.86 pounds 390.0 g / 3.8 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.26 kg / 0.57 pounds 260.0 g / 2.6 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.13 kg / 0.29 pounds 130.0 g / 1.3 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.65 kg / 1.43 pounds 650.0 g / 6.4 N

When hanging a holder on a vertical wall (e.g., a fridge), it you can count on only about 20%-30% of its nominal power. Gravity and a low friction coefficient mean that holders move down faster than they pop off the substrate. Want to create a wall mount? Consider that the shear force is significantly lower than the maximum static pull force. On a slippery surface, the magnet will slide down under a noticeably lighter load. Using a rubber layer can effectively increase the grip.

Table 4: Steel thickness (substrate influence) - sheet metal selection
MW 8x20 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.13 kg / 0.29 pounds 130.0 g / 1.3 N
1 mm	25%	0.33 kg / 0.72 pounds 325.0 g / 3.2 N
2 mm	50%	0.65 kg / 1.43 pounds 650.0 g / 6.4 N
3 mm	75%	0.98 kg / 2.15 pounds 975.0 g / 9.6 N
5 mm	100%	1.30 kg / 2.87 pounds 1300.0 g / 12.8 N
10 mm	100%	1.30 kg / 2.87 pounds 1300.0 g / 12.8 N
11 mm	100%	1.30 kg / 2.87 pounds 1300.0 g / 12.8 N
12 mm	100%	1.30 kg / 2.87 pounds 1300.0 g / 12.8 N

A thin sheet is unable to take in the entire magnetic field, which wastes potential of the holder. Should you mount a strong magnet to a thin surface, the field will pass right through and the holding will be smaller. To achieve the maximum of this magnet's potential, you need a suitably thick backing of metal. The saturation effect causes that on delicate walls (e.g., car bodies), the magnet works worse. We recommend selecting the steel cross-section from these parameters.

Table 5: Working in heat (stability) - thermal limit
MW 8x20 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	1.30 kg / 2.87 pounds 1300.0 g / 12.8 N	OK
40 °C	-2.2%	1.27 kg / 2.80 pounds 1271.4 g / 12.5 N	OK
60 °C	-4.4%	1.24 kg / 2.74 pounds 1242.8 g / 12.2 N	OK
80 °C	-6.6%	1.21 kg / 2.68 pounds 1214.2 g / 11.9 N
100 °C	-28.8%	0.93 kg / 2.04 pounds 925.6 g / 9.1 N

Standard neodymium magnets irreversibly lose strength after exceeding the maximum temperature. Avoid high temperatures – excessive heat can irreversibly destroy this product. As the temperature rises, the neodymium's power temporarily decreases. Do not use this product close to heaters exceeding its safe range. Ignoring the limit will result in permanent loss of magnetism.

*Technical advisory: Heat tolerance depends not only on the material grade, as well as the dimension ratios. Flat magnets (pancake types) risk losing magnetic properties under lower heat stress compared to rod magnets. Red status in the table signals permanent field degradation for this specific geometry.

Table 6: Two magnets (attraction) - forces in the system
MW 8x20 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Sliding Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	11.40 kg / 25.12 pounds 6 154 Gs	1.71 kg / 3.77 pounds 1709 g / 16.8 N	N/A
1 mm	8.76 kg / 19.31 pounds 10 632 Gs	1.31 kg / 2.90 pounds 1314 g / 12.9 N	7.88 kg / 17.38 pounds ~0 Gs
2 mm	6.52 kg / 14.37 pounds 9 174 Gs	0.98 kg / 2.16 pounds 978 g / 9.6 N	5.87 kg / 12.94 pounds ~0 Gs
3 mm	4.76 kg / 10.49 pounds 7 837 Gs	0.71 kg / 1.57 pounds 714 g / 7.0 N	4.28 kg / 9.44 pounds ~0 Gs
5 mm	2.46 kg / 5.43 pounds 5 637 Gs	0.37 kg / 0.81 pounds 369 g / 3.6 N	2.22 kg / 4.88 pounds ~0 Gs
10 mm	0.51 kg / 1.12 pounds 2 561 Gs	0.08 kg / 0.17 pounds 76 g / 0.7 N	0.46 kg / 1.01 pounds ~0 Gs
20 mm	0.05 kg / 0.10 pounds 778 Gs	0.01 kg / 0.02 pounds 7 g / 0.1 N	0.04 kg / 0.09 pounds ~0 Gs
50 mm	0.00 kg / 0.00 pounds 107 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 69 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 48 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 34 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 25 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 19 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 setup of two magnets generates a stronger field and a further horizon of performance. Designing a solid fastener? Use a pair of magnets instead of one magnet and a steel. Remember that when bringing together two magnets, the impact force is massive. The levitation is slightly lower than the attraction, but still large.
*Flux density between like poles drops to ~0 Gs at the geometric center of the gap (caused by magnetic field nullification).
Note: Estimates refer to shear force of two same neodymium magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Protective zones (implants) - warnings
MW 8x20 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	6.5 cm
Hearing aid	10 Gs (1.0 mT)	5.0 cm
Timepiece	20 Gs (2.0 mT)	4.0 cm
Mobile device	40 Gs (4.0 mT)	3.0 cm
Car key	50 Gs (5.0 mT)	3.0 cm
Payment card	400 Gs (40.0 mT)	1.0 cm
HDD hard drive	600 Gs (60.0 mT)	1.0 cm

Extremely neodym field is a serious hazard to electronic devices and pacemakers. These neodymiums produce a field that prevents correct functioning of sensitive medical devices. Remember: the unseen radiation passes through tissues and glass. Exceptional care must be exercised by people with hearing aids and drug dispensers. Influence will be felt by: mechanical watches, remotes, speakers, and displays. Do not place the magnet near cards, hard drives, or precise measuring instruments.

Table 8: Impact energy (kinetic energy) - warning
MW 8x20 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	13.28 km/h (3.69 m/s)	0.05 J
30 mm	22.94 km/h (6.37 m/s)	0.15 J
50 mm	29.61 km/h (8.23 m/s)	0.26 J
100 mm	41.88 km/h (11.63 m/s)	0.51 J

Magnetic elements are prone to chipping – a collision with steel can result in shattering. Control the attraction moment – a neodymium left loose speeds with massive force. Impact energy can cause material chips or injury to fingers. Always hold the magnet during mounting so it doesn't slam with momentum against the steel surface. A collision at high speed ends with a crack of the magnet. Use safety goggles when working with large magnets.

Table 9: Anti-corrosion coating durability
MW 8x20 / 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 SST (salt spray test) is an industry standard for determining coating lifespan in harsh conditions. Note the thickness of the protective layer.

Table 10: Electrical data (Flux)
MW 8x20 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	3 457 Mx	34.6 µWb
P_c Coefficient	1.31	High (Stable)

Total magnetic flux emitted by the pole surface. Key data for generator designers and motors. The P_c coefficient determines the magnet's operating point.

Table 11: Hydrostatics and buoyancy
MW 8x20 / N38

Environment	Effective steel pull	Effect
Air (land)	1.30 kg	Standard
Water (riverbed)	1.49 kg (+0.19 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.

Contrary to myths, water does not block the magnetic field. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Wall mount (shear)

*Caution: On a vertical wall, the magnet retains merely a fraction of its perpendicular strength.

2. Efficiency vs thickness

*Thin steel (e.g. 0.5mm PC case) drastically limits the holding force.

3. Temperature resistance

*For N38 material, 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) = 1.31

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 and environmental data

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: 010475-2026

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UMC 75x11/6x18 / N38 - cylindrical magnetic holder

169.86 ZŁ brutto / pcs

The presented product is an incredibly powerful cylindrical magnet, composed of advanced NdFeB material, which, at dimensions of Ø8x20 mm, guarantees the highest energy density. The MW 8x20 / N38 component features high dimensional repeatability and professional build quality, making it an excellent solution for professional engineers and designers. As a cylindrical magnet with significant force (approx. 1.30 kg), this product is in stock from our warehouse in Poland, ensuring lightning-fast order fulfillment. Moreover, its triple-layer Ni-Cu-Ni coating effectively protects it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.

This model is perfect for building electric motors, advanced Hall effect sensors, and efficient filters, where maximum induction on a small surface counts. Thanks to the high power of 12.71 N with a weight of only 7.54 g, this cylindrical magnet is indispensable in miniature devices and wherever every gram matters.

Since our magnets have a very precise dimensions, the recommended way is to glue them into holes with a slightly larger diameter (e.g., 8.1 mm) using two-component epoxy glues. To ensure stability in automation, anaerobic resins are used, which are safe for nickel and fill the gap, guaranteeing durability of the connection.

Grade N38 is the most frequently chosen standard for industrial neodymium magnets, offering a great economic balance and operational stability. If you need even stronger magnets in the same volume (Ø8x20), 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 Ø8x20 mm, which, at a weight of 7.54 g, makes it an element with impressive magnetic energy density. The value of 12.71 N means that the magnet is capable of holding a weight many times exceeding its own mass of 7.54 g. The product has a [NiCuNi] coating, which secures it against external factors, giving it an aesthetic, silvery shine.

This cylinder is magnetized axially (along the height of 20 mm), which means that the N and S poles are located on the flat, circular surfaces. Such an arrangement is most desirable 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.

Strengths as well as weaknesses of Nd₂Fe₁₄B magnets.

Benefits

Apart from their consistent holding force, neodymium magnets have these key benefits:

Their power remains stable, and after around 10 years it decreases only by ~1% (according to research),
Magnets effectively resist against loss of magnetization caused by external fields,
Thanks to the metallic finish, the plating of Ni-Cu-Ni, gold, or silver-plated gives an aesthetic appearance,
Magnets are characterized by impressive magnetic induction on the surface,
Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can function (depending on the shape) even at a temperature of 230°C or more...
Thanks to flexibility in designing and the capacity to customize to individual projects,
Fundamental importance in advanced technology sectors – they find application in mass storage devices, brushless drives, diagnostic systems, and technologically advanced constructions.
Thanks to efficiency per cm³, small magnets offer high operating force, with minimal size,

Weaknesses

Characteristics of disadvantages of neodymium magnets and ways of using them

They are prone to damage upon heavy impacts. To avoid cracks, it is worth securing magnets using a steel holder. Such protection not only protects the magnet but also increases its resistance to damage
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 and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are very resistant to heat
Magnets exposed to a humid environment can rust. Therefore when using outdoors, we recommend using waterproof magnets made of rubber, plastic or other material resistant to moisture
We recommend casing - magnetic holder, due to difficulties in creating threads inside the magnet and complicated shapes.
Potential hazard resulting from small fragments of magnets are risky, if swallowed, which gains importance in the context of child health protection. It is also worth noting that small components of these magnets are able to disrupt the diagnostic process medical in case of swallowing.
Due to expensive raw materials, their price exceeds standard values,

Lifting parameters

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

The load parameter shown represents the peak performance, measured under laboratory conditions, meaning:

using a sheet made of mild steel, serving as a ideal flux conductor
with a cross-section no less than 10 mm
characterized by even structure
without any insulating layer between the magnet and steel
for force applied at a right angle (in the magnet axis)
in temp. approx. 20°C

Lifting capacity in practice – influencing factors

Real force is affected by specific conditions, such as (from most important):

Air gap (betwixt the magnet and the plate), since even a very small distance (e.g. 0.5 mm) leads to a drastic drop in lifting capacity by up to 50% (this also applies to varnish, corrosion or dirt).
Pull-off angle – note that the magnet has greatest strength perpendicularly. Under shear forces, the capacity drops drastically, often to levels of 20-30% of the nominal value.
Plate thickness – too thin steel 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.
Base smoothness – the smoother and more polished the plate, the larger the contact zone and higher the lifting capacity. Unevenness creates an air distance.
Temperature influence – high temperature reduces pulling force. Too high temperature can permanently demagnetize the magnet.

Holding force was measured on the plate surface of 20 mm thickness, when a perpendicular force was applied, however under shearing force the load capacity is reduced by as much as fivefold. In addition, even a minimal clearance between the magnet’s surface and the plate reduces the lifting capacity.

Warnings

Electronic hazard

Powerful magnetic fields can corrupt files on credit cards, HDDs, and storage devices. Keep a distance of at least 10 cm.

Combustion hazard

Dust produced during cutting of magnets is flammable. Avoid drilling into magnets without proper cooling and knowledge.

ICD Warning

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

Risk of cracking

Watch out for shards. Magnets can fracture upon uncontrolled impact, launching shards into the air. Wear goggles.

Serious injuries

Danger of trauma: The attraction force is so immense that it can cause blood blisters, crushing, and broken bones. Use thick gloves.

Safe operation

Before use, read the rules. Sudden snapping can break the magnet or hurt your hand. Think ahead.

Do not give to children

Product intended for adults. Tiny parts can be swallowed, causing severe trauma. Store out of reach of children and animals.

Sensitization to coating

Nickel alert: The Ni-Cu-Ni coating contains nickel. If skin irritation appears, immediately stop working with magnets and wear gloves.

Demagnetization risk

Standard neodymium magnets (grade N) lose power when the temperature exceeds 80°C. The loss of strength is permanent.

Phone sensors

Be aware: neodymium magnets produce a field that confuses sensitive sensors. Maintain a separation from your mobile, device, and GPS.

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

MW 8x20 / N38 - cylindrical magnet

Technical parameters of the product - MW 8x20 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical modeling of the assembly - data

Table 1: Static force (force vs gap) - characteristics MW 8x20 / N38

Table 2: Shear hold (wall) MW 8x20 / N38

Table 3: Wall mounting (shearing) - vertical pull MW 8x20 / N38

Table 4: Steel thickness (substrate influence) - sheet metal selection MW 8x20 / N38

Table 5: Working in heat (stability) - thermal limit MW 8x20 / N38

Table 6: Two magnets (attraction) - forces in the system MW 8x20 / N38

Table 7: Protective zones (implants) - warnings MW 8x20 / N38

Table 8: Impact energy (kinetic energy) - warning MW 8x20 / N38

Table 9: Anti-corrosion coating durability MW 8x20 / N38

Table 10: Electrical data (Flux) MW 8x20 / N38

Table 11: Hydrostatics and buoyancy MW 8x20 / N38

1. Wall mount (shear)

2. Efficiency vs thickness

3. Temperature resistance

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

Material specification

Sustainability

Pulling force

Field Strength

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UMC 75x11/6x18 / N38 - cylindrical magnetic holder

Strengths as well as weaknesses of Nd2Fe14B magnets.

Benefits

Weaknesses

Lifting parameters

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

Lifting capacity in practice – influencing factors

Warnings

Electronic hazard

Combustion hazard

ICD Warning

Risk of cracking

Serious injuries

Safe operation

Do not give to children

Sensitization to coating

Demagnetization risk

Phone sensors

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs gap) - characteristics
MW 8x20 / N38

Table 2: Shear hold (wall)
MW 8x20 / N38

Table 3: Wall mounting (shearing) - vertical pull
MW 8x20 / N38

Table 4: Steel thickness (substrate influence) - sheet metal selection
MW 8x20 / N38

Table 5: Working in heat (stability) - thermal limit
MW 8x20 / N38

Table 6: Two magnets (attraction) - forces in the system
MW 8x20 / N38

Table 7: Protective zones (implants) - warnings
MW 8x20 / N38

Table 8: Impact energy (kinetic energy) - warning
MW 8x20 / N38

Table 9: Anti-corrosion coating durability
MW 8x20 / N38

Table 10: Electrical data (Flux)
MW 8x20 / N38

Table 11: Hydrostatics and buoyancy
MW 8x20 / N38

Strengths as well as weaknesses of Nd₂Fe₁₄B magnets.