Product available Ships tomorrow

MW 20x2 / 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 010041

GTIN/EAN: 5906301810407

5.00

Diameter Ø

20 mm [±0,1 mm]

Height

2 mm [±0,1 mm]

Weight

4.71 g

Magnetization Direction

↑ axial

Load capacity

1.63 kg / 16.02 N

Magnetic Induction

121.57 mT / 1216 Gs

Coating

[NiCuNi] Nickel

technical details »

2.08 ZŁ with VAT / pcs + price for transport

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Physical properties - MW 20x2 / N38 - cylindrical magnet

Specification / characteristics - MW 20x2 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010041
GTIN/EAN	5906301810407
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	20 mm [±0,1 mm]
Height	2 mm [±0,1 mm]
Weight	4.71 g
Magnetization Direction	↑ axial
Load capacity ~ ?	1.63 kg / 16.02 N
Magnetic Induction ~ ?	121.57 mT / 1216 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 20x2 / 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 simulation of the assembly - technical parameters

These values are the outcome of a engineering analysis. Results are based on models for the class Nd₂Fe₁₄B. Actual conditions may deviate from the simulation results. Use these data as a preliminary roadmap for designers.

Table 1: Static force (pull vs gap) - power drop
MW 20x2 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	1216 Gs 121.6 mT	1.63 kg / 3.59 lbs 1630.0 g / 16.0 N	safe
1 mm	1165 Gs 116.5 mT	1.50 kg / 3.30 lbs 1496.3 g / 14.7 N	safe
2 mm	1087 Gs 108.7 mT	1.30 kg / 2.87 lbs 1302.7 g / 12.8 N	safe
3 mm	991 Gs 99.1 mT	1.08 kg / 2.39 lbs 1083.7 g / 10.6 N	safe
5 mm	783 Gs 78.3 mT	0.68 kg / 1.49 lbs 675.9 g / 6.6 N	safe
10 mm	379 Gs 37.9 mT	0.16 kg / 0.35 lbs 158.4 g / 1.6 N	safe
15 mm	185 Gs 18.5 mT	0.04 kg / 0.08 lbs 37.9 g / 0.4 N	safe
20 mm	99 Gs 9.9 mT	0.01 kg / 0.02 lbs 10.8 g / 0.1 N	safe
30 mm	36 Gs 3.6 mT	0.00 kg / 0.00 lbs 1.4 g / 0.0 N	safe
50 mm	9 Gs 0.9 mT	0.00 kg / 0.00 lbs 0.1 g / 0.0 N	safe

Magnetic force weakens drastically with every subsequent millimeter of distance. Note that even a microscopic distance (e.g., contamination, varnish, veneer) significantly weakens the grip. Magnetic products work strongest in perfect adhesion; distance kills the power. Analyze how quickly the load capacity plummet, when the product does not touch tightly to the metal substrate. When designing the assembly, eliminate additional spacers.

Table 2: Slippage force (wall)
MW 20x2 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.33 kg / 0.72 lbs 326.0 g / 3.2 N
1 mm	Stal (~0.2)	0.30 kg / 0.66 lbs 300.0 g / 2.9 N
2 mm	Stal (~0.2)	0.26 kg / 0.57 lbs 260.0 g / 2.6 N
3 mm	Stal (~0.2)	0.22 kg / 0.48 lbs 216.0 g / 2.1 N
5 mm	Stal (~0.2)	0.14 kg / 0.30 lbs 136.0 g / 1.3 N
10 mm	Stal (~0.2)	0.03 kg / 0.07 lbs 32.0 g / 0.3 N
15 mm	Stal (~0.2)	0.01 kg / 0.02 lbs 8.0 g / 0.1 N
20 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 2.0 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

This section shows the approximate shear load needed to initiate the sliding of the magnet downwards along a vertical metal surface (considering standard friction coefficient). This value is relative to the air gap between the magnet and the metal.

Table 3: Wall mounting (shearing) - vertical pull
MW 20x2 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.49 kg / 1.08 lbs 489.0 g / 4.8 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.33 kg / 0.72 lbs 326.0 g / 3.2 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.16 kg / 0.36 lbs 163.0 g / 1.6 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.82 kg / 1.80 lbs 815.0 g / 8.0 N

When placing a holder on a upright wall (e.g., a fridge), it will maintain only approx. 20%-30% of its nominal power. Gravity as well as a weak degree of grip mean that magnets move down faster than they pop off the substrate. Designing a hanger? Note that the sliding force is noticeably lower than the maximum static pull force. On a smooth steel, the holder will slip down under a significantly smaller cargo. Using a rubber layer can significantly increase the grip.

Table 4: Steel thickness (saturation) - power losses
MW 20x2 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.16 kg / 0.36 lbs 163.0 g / 1.6 N
1 mm	25%	0.41 kg / 0.90 lbs 407.5 g / 4.0 N
2 mm	50%	0.82 kg / 1.80 lbs 815.0 g / 8.0 N
3 mm	75%	1.22 kg / 2.70 lbs 1222.5 g / 12.0 N
5 mm	100%	1.63 kg / 3.59 lbs 1630.0 g / 16.0 N
10 mm	100%	1.63 kg / 3.59 lbs 1630.0 g / 16.0 N
11 mm	100%	1.63 kg / 3.59 lbs 1630.0 g / 16.0 N
12 mm	100%	1.63 kg / 3.59 lbs 1630.0 g / 16.0 N

A too thin steel is not enough to focus the full magnetic flux, which weakens actual performance of the magnet. Should you install a neodymium to a too thin substrate, the magnetism will pass right through and the holding will be smaller. To squeeze the maximum of this magnet's power, you need a suitably thick backing of steel. The saturation phenomenon means that on sheet metal structures (e.g., appliance housings), the magnet works worse. We suggest choosing the steel thickness according to the table below.

Table 5: Thermal stability (material behavior) - power drop
MW 20x2 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	1.63 kg / 3.59 lbs 1630.0 g / 16.0 N	OK
40 °C	-2.2%	1.59 kg / 3.51 lbs 1594.1 g / 15.6 N	OK
60 °C	-4.4%	1.56 kg / 3.44 lbs 1558.3 g / 15.3 N
80 °C	-6.6%	1.52 kg / 3.36 lbs 1522.4 g / 14.9 N
100 °C	-28.8%	1.16 kg / 2.56 lbs 1160.6 g / 11.4 N

Classic neodymiums irreversibly lose parameters after exceeding the maximum temperature. Protect against heat – high temperature can permanently damage this product. With increasing heat, the magnet's power briefly lowers. Do not use this magnet near heat sources exceeding its working range. Ignoring the limit will lead to irreversible degradation of magnetism.

*Engineering note: Temperature resistance depends not only on the material grade, but also on the magnet's shape. Flat magnets (low Pc) are more susceptible to demagnetization sooner than long magnets. Red status in the table signals permanent field degradation for this particular item.

Table 6: Two magnets (attraction) - forces in the system
MW 20x2 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	2.86 kg / 6.31 lbs 2 301 Gs	0.43 kg / 0.95 lbs 429 g / 4.2 N	N/A
1 mm	2.76 kg / 6.09 lbs 2 388 Gs	0.41 kg / 0.91 lbs 414 g / 4.1 N	2.49 kg / 5.48 lbs ~0 Gs
2 mm	2.63 kg / 5.79 lbs 2 329 Gs	0.39 kg / 0.87 lbs 394 g / 3.9 N	2.36 kg / 5.21 lbs ~0 Gs
3 mm	2.47 kg / 5.44 lbs 2 257 Gs	0.37 kg / 0.82 lbs 370 g / 3.6 N	2.22 kg / 4.89 lbs ~0 Gs
5 mm	2.10 kg / 4.62 lbs 2 081 Gs	0.31 kg / 0.69 lbs 315 g / 3.1 N	1.89 kg / 4.16 lbs ~0 Gs
10 mm	1.19 kg / 2.62 lbs 1 565 Gs	0.18 kg / 0.39 lbs 178 g / 1.7 N	1.07 kg / 2.35 lbs ~0 Gs
20 mm	0.28 kg / 0.61 lbs 758 Gs	0.04 kg / 0.09 lbs 42 g / 0.4 N	0.25 kg / 0.55 lbs ~0 Gs
50 mm	0.01 kg / 0.01 lbs 115 Gs	0.00 kg / 0.00 lbs 1 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
60 mm	0.00 kg / 0.01 lbs 72 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 48 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 33 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 24 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 18 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs

Two magnetic products attract each other from a significantly greater distance than a neodymium and metal combination. The connection of two magnets creates a more powerful interaction and a wider radius of performance. Planning to create 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 massive. The repulsion force is marginally weaker than the connection force, but still significant.
*The magnetic induction for N-N configuration is approximately ~0 Gs in the exact middle of the gap (caused by magnetic field nullification).
Note: Estimates refer to sliding force of a pair of same magnets (friction ~0.15 for Ni-Ni coating).

Table 7: Hazards (implants) - warnings
MW 20x2 / 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
Remote	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

A strong magnetic field is a serious hazard to electronics as well as medical implants. These neodymiums generate a flux that disrupts operation of sensitive medical devices. Notice: the unseen radiation acts through matter and housings. Special caution must be taken by people with hearing aids and drug dispensers. The risk also applies to: automatic timepieces, car keys, membranes, and screens. Do not place the magnet near cards, hard drives, or precise measuring instruments.

Table 8: Collisions (kinetic energy) - collision effects
MW 20x2 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	19.87 km/h (5.52 m/s)	0.07 J
30 mm	32.51 km/h (9.03 m/s)	0.19 J
50 mm	41.95 km/h (11.65 m/s)	0.32 J
100 mm	59.33 km/h (16.48 m/s)	0.64 J

NdFeB products are prone to chipping – a violent impact against metal causes immediate chipping. Control the attraction moment – a neodymium left loose becomes dangerous. Kinetic force can destroy the magnet or injury to fingers. Be sure to control the product during installation so it doesn't slam with momentum against the metal. A collision at high speed almost guarantees destruction of the neodymium. Use safety goggles when playing with large magnets.

Table 9: Anti-corrosion coating durability
MW 20x2 / N38

Technical parameter	Value / Description
Coating type	[NiCuNi] Nickel
Layer structure	Nickel - Copper - Nickel
Layer thickness	10-20 µm
Salt spray test (SST) ?	24 h
Recommended environment	Indoors only (dry)

The following table defines the conditions under which this product can be safely used. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Construction data (Flux)
MW 20x2 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	5 038 Mx	50.4 µWb
P_c Coefficient	0.16	Low (Flat)

Flux value emitted by the magnet pole. Essential parameter in coil applications and motors. The P_c coefficient determines the working geometry.

Table 11: Underwater work (magnet fishing)
MW 20x2 / N38

Environment	Effective steel pull	Effect
Air (land)	1.63 kg	Standard
Water (riverbed)	1.87 kg (+0.24 kg buoyancy gain)	+14.5%

Warning: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!

In water, the magnet feels stronger thanks to Archimedes' principle. However, remember the water resistance when pulling the rope quickly.

1. Shear force

*Warning: On a vertical surface, the magnet holds only a fraction of its perpendicular strength.

2. Steel saturation

*Thin steel (e.g. computer case) severely weakens the holding force.

3. Thermal stability

*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) = 0.16

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.

Technical and environmental data

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%

Ecology and recycling (GPSR)

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

Safety card (GPSR)

responsible entity

Dhit sp. z o.o.

ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki

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

batch number/type

id: 010041-2026

Measurement Calculator

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lbs

Field Strength

Gauss (Gs)

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The presented product is an extremely powerful cylindrical magnet, composed of modern NdFeB material, which, at dimensions of Ø20x2 mm, guarantees maximum efficiency. The MW 20x2 / N38 component is characterized by high dimensional repeatability and professional build quality, making it a perfect solution for the most demanding engineers and designers. As a cylindrical magnet with significant force (approx. 1.63 kg), this product is in stock from our warehouse in Poland, ensuring lightning-fast order fulfillment. Additionally, its triple-layer Ni-Cu-Ni coating secures it against corrosion in typical operating conditions, guaranteeing an aesthetic appearance and durability for years.

It finds application in modeling, advanced robotics, and broadly understood industry, serving as a fastening or actuating element. Thanks to the pull force of 16.02 N with a weight of only 4.71 g, this rod 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., 20.1 mm) using two-component epoxy glues. To ensure stability in industry, specialized industrial adhesives are used, which are safe for nickel and fill the gap, guaranteeing high repeatability of the connection.

Grade N38 is the most popular standard for industrial neodymium magnets, offering an optimal price-to-power ratio and operational stability. If you need the strongest magnets in the same volume (Ø20x2), 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 Ø20x2 mm, which, at a weight of 4.71 g, makes it an element with impressive magnetic energy density. The key parameter here is the lifting capacity amounting to approximately 1.63 kg (force ~16.02 N), which, with such defined dimensions, proves the high grade of the NdFeB material. 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 2 mm), which means that the N and S poles are located on the flat, circular surfaces. Thanks to this, the magnet can be easily glued into a hole and achieve a strong field on the front surface. On request, we can also produce versions magnetized through the diameter if your project requires it.

Strengths and weaknesses of rare earth magnets.

Pros

Besides their high retention, neodymium magnets are valued for these benefits:

They retain magnetic properties for nearly ten years – the loss is just ~1% (based on simulations),
They retain their magnetic properties even under external field action,
By covering with a smooth coating of silver, the element has an elegant look,
Neodymium magnets achieve maximum magnetic induction on a small surface, which allows for strong attraction,
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...
In view of the option of free forming and adaptation to individualized requirements, neodymium magnets can be manufactured in a variety of geometric configurations, which amplifies use scope,
Key role in modern technologies – they are utilized in computer drives, drive modules, advanced medical instruments, also technologically advanced constructions.
Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in small dimensions, which enables their usage in miniature devices

Weaknesses

Disadvantages of neodymium magnets:

To avoid cracks under impact, we suggest using special steel housings. Such a solution protects the magnet and simultaneously increases its durability.
When exposed to high temperature, neodymium magnets experience a drop in force. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size and shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as those in rubber or plastics, which secure oxidation as well as corrosion.
Due to limitations in realizing threads and complicated forms in magnets, we propose using casing - magnetic holder.
Potential hazard resulting from small fragments of magnets pose a threat, when accidentally swallowed, which becomes key in the aspect of protecting the youngest. It is also worth noting that small elements of these devices are able to complicate diagnosis medical when they are in the body.
Due to expensive raw materials, their price exceeds standard values,

Holding force characteristics

Highest magnetic holding force – what contributes to it?

The declared magnet strength concerns the peak performance, obtained under ideal test conditions, specifically:

with the contact of a sheet made of low-carbon steel, guaranteeing maximum field concentration
with a thickness minimum 10 mm
with a plane cleaned and smooth
under conditions of no distance (surface-to-surface)
for force applied at a right angle (in the magnet axis)
in neutral thermal conditions

Impact of factors on magnetic holding capacity in practice

Holding efficiency is influenced by specific conditions, such as (from most important):

Distance – existence of foreign body (paint, tape, gap) acts as an insulator, which lowers power rapidly (even by 50% at 0.5 mm).
Force direction – note that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops drastically, often to levels of 20-30% of the nominal value.
Base massiveness – insufficiently thick sheet does not accept the full field, causing part of the flux to be escaped into the air.
Chemical composition of the base – low-carbon steel attracts best. Higher carbon content lower magnetic properties and lifting capacity.
Surface condition – ground elements ensure maximum contact, which increases force. Rough surfaces reduce efficiency.
Thermal conditions – neodymium magnets have a sensitivity to temperature. At higher temperatures they lose power, and at low temperatures gain strength (up to a certain limit).

Lifting capacity was measured with the use of a smooth steel plate of optimal thickness (min. 20 mm), under perpendicular detachment force, however under parallel forces the load capacity is reduced by as much as 75%. In addition, even a minimal clearance between the magnet’s surface and the plate decreases the holding force.

Warnings

Warning for allergy sufferers

Certain individuals experience a hypersensitivity to nickel, which is the common plating for NdFeB magnets. Extended handling may cause an allergic reaction. We recommend use safety gloves.

Handling guide

Use magnets with awareness. Their immense force can surprise even professionals. Be vigilant and do not underestimate their force.

Adults only

Neodymium magnets are not intended for children. Accidental ingestion of a few magnets can lead to them pinching intestinal walls, which poses a critical condition and requires immediate surgery.

Thermal limits

Regular neodymium magnets (N-type) lose power when the temperature surpasses 80°C. This process is irreversible.

Fragile material

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

Threat to navigation

Be aware: neodymium magnets produce a field that confuses precision electronics. Maintain a safe distance from your mobile, device, and GPS.

Cards and drives

Device Safety: Neodymium magnets can ruin payment cards and delicate electronics (heart implants, medical aids, timepieces).

Combustion hazard

Powder produced during cutting of magnets is combustible. Avoid drilling into magnets unless you are an expert.

Serious injuries

Big blocks can crush fingers instantly. Do not place your hand between two attracting surfaces.

Health Danger

People with a heart stimulator should maintain an absolute distance from magnets. The magnetic field can disrupt the functioning of the implant.

Caution! Details about risks in the article: Magnet Safety Guide.

MW 20x2 / N38 - cylindrical magnet

Physical properties - MW 20x2 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering simulation of the assembly - technical parameters

Table 1: Static force (pull vs gap) - power drop MW 20x2 / N38

Table 2: Slippage force (wall) MW 20x2 / N38

Table 3: Wall mounting (shearing) - vertical pull MW 20x2 / N38

Table 4: Steel thickness (saturation) - power losses MW 20x2 / N38

Table 5: Thermal stability (material behavior) - power drop MW 20x2 / N38

Table 6: Two magnets (attraction) - forces in the system MW 20x2 / N38

Table 7: Hazards (implants) - warnings MW 20x2 / N38

Table 8: Collisions (kinetic energy) - collision effects MW 20x2 / N38

Table 9: Anti-corrosion coating durability MW 20x2 / N38

Table 10: Construction data (Flux) MW 20x2 / N38

Table 11: Underwater work (magnet fishing) MW 20x2 / N38

1. Shear force

2. Steel saturation

3. Thermal stability

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

Chemical composition

Ecology and recycling (GPSR)

Magnet pull force

Field Strength

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SM 19x225 [2xM6] / N50 - magnetic separator

Strengths and weaknesses of rare earth magnets.

Pros

Weaknesses

Holding force characteristics

Highest magnetic holding force – what contributes to it?

Impact of factors on magnetic holding capacity in practice

Warnings

Warning for allergy sufferers

Handling guide

Adults only

Thermal limits

Fragile material

Threat to navigation

Cards and drives

Combustion hazard

Serious injuries

Health Danger

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (pull vs gap) - power drop
MW 20x2 / N38

Table 2: Slippage force (wall)
MW 20x2 / N38

Table 3: Wall mounting (shearing) - vertical pull
MW 20x2 / N38

Table 4: Steel thickness (saturation) - power losses
MW 20x2 / N38

Table 5: Thermal stability (material behavior) - power drop
MW 20x2 / N38

Table 6: Two magnets (attraction) - forces in the system
MW 20x2 / N38

Table 7: Hazards (implants) - warnings
MW 20x2 / N38

Table 8: Collisions (kinetic energy) - collision effects
MW 20x2 / N38

Table 9: Anti-corrosion coating durability
MW 20x2 / N38

Table 10: Construction data (Flux)
MW 20x2 / N38

Table 11: Underwater work (magnet fishing)
MW 20x2 / N38