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MW 20x2 / 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 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

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Technical parameters of the product - 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

Physical analysis of the product - report

Presented data are the result of a mathematical simulation. Values rely on algorithms for the material Nd₂Fe₁₄B. Real-world performance might slightly deviate from the simulation results. Use these data as a reference point during assembly planning.

Table 1: Static force (pull vs distance) - characteristics
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 sharply per each millimeter of spacing. Note that even the smallest gap (e.g., dirt, varnish, rust) significantly reduces the pull force. Magnetic products operate strongest in perfect adhesion; air break drastically cuts the force. Notice how flashily the pull force drop, when the magnet does not adhere flatly to the metal substrate. When designing the mounting, avoid additional spacers.

Table 2: Shear capacity (vertical surface)
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

The following data presents the estimated shear load needed to start the sliding of the magnet downwards on a upright metal surface (considering standard friction). This value varies with the gap size between the magnet and the surface.

Table 3: Vertical assembly (sliding) - 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 mounting a magnet on a vertical surface (e.g., a board), it will only hold only about 20%-30% of its nominal power. Gravitational force as well as a low friction coefficient mean that magnets slide down faster than they detach. Planning a hanger? Remember that the sliding force is significantly lower than the maximum static pull force. On a smooth steel, the holder will slip down under a noticeably lighter cargo. Application of an anti-slip coating can significantly raise the stability.

Table 4: Steel thickness (substrate influence) - 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 thin sheet cannot conduct the full magnetic flux, which wastes potential of the magnet. If you mount a strong magnet to a too thin substrate, the flux will pass right through and the attraction force will be weaker. To achieve the maximum of this magnet's power, you need a suitably thick piece of steel. The material oversaturation means that on thin elements (e.g., car bodies), the product shows lower pull force. We suggest choosing the steel cross-section from these parameters.

Table 5: Thermal stability (stability) - resistance threshold
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 lose strength past the thermal threshold. Protect against heat – heat can permanently destroy this product. With increasing heat, the neodymium's power momentarily lowers. Avoid using this product close to ovens exceeding its operating temperature limit. Exceeding the critical threshold will lead to irreversible degradation of magnetic properties.

*Engineering note: Heat tolerance is determined by both grade, and the Permeance Coefficient Pc. Flat magnets (pancake types) may lose charge permanently under lower heat stress compared to rod magnets. Red status in the table points to a risk of irreversible loss for this particular item.

Table 6: Magnet-Magnet interaction (repulsion) - field collision
MW 20x2 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear 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 magnets attract each other from a much further distance than a magnet and sheet combination. The setup of magnet-to-magnet creates a more powerful interaction and a wider radius of action. Designing a solid fastener? Apply two magnets instead of one magnet and a steel. Exercise caution that when connecting a pair of magnets, the impact force is massive. The repulsion force is a bit weaker than the attraction, but still significant.
*Field value between like poles reaches ~0 Gs at the geometric center of the gap (due to field cancellation).
* Estimates apply to sliding force of dual matching magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Protective zones (implants) - precautionary measures
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
Phone / Smartphone	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

Powerful magnet radiation poses a real danger to IT equipment as well as medical implants. These neodymiums produce a flux that disrupts operation of digital equipment. Remember: the invisible magnetic field penetrates the body and housings. Increased vigilance must be taken by people with cochlear implants and insulin pumps. The risk also applies to: mechanical watches, remotes, membranes, and screens. Do not bring the product near payment cards, hard drives, or sensitive navigation tools.

Table 8: Dynamics (cracking risk) - 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 very brittle – a strong collision with metal can result in shattering. Watch the impact speed – a neodymium left loose turns into a projectile. Impact energy can trigger coating fragments or painful pinches to skin. Be sure to control the product during installation so it doesn't slam with momentum against the steel surface. A contact at a velocity of dozens of km/h ends with a crack of the neodymium. Wear eye protection when working with powerful specimens.

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)

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

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%

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

Water displaces steel, making heavy objects slightly lighter. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Wall mount (shear)

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

2. Efficiency vs thickness

*Thin steel (e.g. 0.5mm PC case) significantly reduces the holding force.

3. Thermal stability

*For standard magnets, the safety limit 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 specification and ecology

Chemical composition

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

Environmental data

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

Safety card (GPSR)

responsible entity

Dhit sp. z o.o.

ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki

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

batch number/type

id: 010041-2026

Measurement Calculator

Magnet pull force

Kilograms (kg)

Newtons (N)

lbs

Field Strength

Induction (Gs)

Tesla (T)

Input data in one of the inputs, and all other values change automatically.

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MW 38x12 / N38 - cylindrical magnet

32.10 ZŁ brutto / pcs

The offered product is a very strong rod magnet, manufactured from modern NdFeB material, which, at dimensions of Ø20x2 mm, guarantees optimal power. The MW 20x2 / N38 model 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 impressive force (approx. 1.63 kg), this product is in stock from our European logistics center, ensuring rapid order fulfillment. Furthermore, its Ni-Cu-Ni coating effectively protects it against corrosion in typical operating conditions, guaranteeing an aesthetic appearance and durability for years.

It successfully proves itself in modeling, advanced robotics, and broadly understood industry, serving as a fastening or actuating element. Thanks to the high power of 16.02 N with a weight of only 4.71 g, this rod is indispensable in miniature devices and wherever low weight is crucial.

Due to the delicate structure of the ceramic sinter, you must not use force-fitting (so-called press-fit), as this risks chipping the coating of this professional component. To ensure stability in industry, 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 professional 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 store.

This model is characterized by dimensions Ø20x2 mm, which, at a weight of 4.71 g, makes it an element with high magnetic energy density. The value of 16.02 N means that the magnet is capable of holding a weight many times exceeding its own mass of 4.71 g. The product has a [NiCuNi] coating, which protects the surface against external factors, giving it an aesthetic, silvery shine.

This rod magnet is magnetized axially (along the height of 2 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 as well as cons of neodymium magnets.

Benefits

Besides their exceptional pulling force, neodymium magnets offer the following advantages:

Their strength is maintained, and after approximately ten years it decreases only by ~1% (theoretically),
They feature excellent resistance to weakening of magnetic properties when exposed to external magnetic sources,
A magnet with a metallic silver surface has better aesthetics,
Neodymium magnets create maximum magnetic induction on a small surface, which increases force concentration,
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...
Possibility of individual shaping as well as optimizing to individual requirements,
Fundamental importance in high-tech industry – they are commonly used in data components, electromotive mechanisms, medical equipment, and complex engineering applications.
Thanks to concentrated force, small magnets offer high operating force, in miniature format,

Limitations

Problematic aspects of neodymium magnets: weaknesses and usage proposals

To avoid cracks upon strong impacts, we recommend using special steel holders. Such a solution secures the magnet and simultaneously increases its 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
They rust in a humid environment - during use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
We suggest cover - magnetic holder, due to difficulties in realizing nuts inside the magnet and complex shapes.
Potential hazard to health – tiny shards of magnets pose a threat, in case of ingestion, which gains importance in the context of child health protection. Additionally, small components of these devices are able to complicate diagnosis medical in case of swallowing.
Due to neodymium price, their price exceeds standard values,

Lifting parameters

Best holding force of the magnet in ideal parameters – what contributes to it?

Holding force of 1.63 kg is a result of laboratory testing executed under the following configuration:

using a sheet made of low-carbon steel, serving as a magnetic yoke
possessing a massiveness of minimum 10 mm to ensure full flux closure
with a surface perfectly flat
under conditions of gap-free contact (metal-to-metal)
for force applied at a right angle (pull-off, not shear)
at standard ambient temperature

Determinants of practical lifting force of a magnet

Effective lifting capacity is affected by specific conditions, such as (from most important):

Gap between surfaces – even a fraction of a millimeter of separation (caused e.g. by varnish or unevenness) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
Pull-off angle – remember that the magnet has greatest strength perpendicularly. Under shear forces, the holding force drops drastically, often to levels of 20-30% of the maximum value.
Element thickness – for full efficiency, the steel must be sufficiently thick. Paper-thin metal restricts the attraction force (the magnet "punches through" it).
Material type – the best choice is high-permeability steel. Cast iron may attract less.
Smoothness – full contact is obtained only on polished steel. Any scratches and bumps reduce the real contact area, weakening the magnet.
Temperature – temperature increase results in weakening of force. Check the maximum operating temperature for a given model.

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

H&S for magnets

Operating temperature

Do not overheat. NdFeB magnets are susceptible to temperature. If you require operation above 80°C, inquire about special high-temperature series (H, SH, UH).

Keep away from computers

Powerful magnetic fields can destroy records on payment cards, hard drives, and storage devices. Keep a distance of min. 10 cm.

Shattering risk

Despite metallic appearance, the material is delicate and not impact-resistant. Do not hit, as the magnet may shatter into sharp, dangerous pieces.

Caution required

Handle with care. Rare earth magnets attract from a distance and connect with huge force, often faster than you can move away.

Danger to pacemakers

For implant holders: Strong magnetic fields disrupt medical devices. Keep at least 30 cm distance or request help to handle the magnets.

Magnetic interference

Navigation devices and smartphones are extremely susceptible to magnetic fields. Close proximity with a powerful NdFeB magnet can ruin the sensors in your phone.

Bone fractures

Big blocks can crush fingers in a fraction of a second. Do not put your hand betwixt two attracting surfaces.

Do not drill into magnets

Machining of NdFeB material poses a fire hazard. Magnetic powder oxidizes rapidly with oxygen and is hard to extinguish.

Sensitization to coating

Warning for allergy sufferers: The Ni-Cu-Ni coating contains nickel. If redness occurs, immediately stop handling magnets and use protective gear.

Do not give to children

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

Danger! More info about hazards in the article: Magnet Safety Guide.

MW 20x2 / N38 - cylindrical magnet

Technical parameters of the product - MW 20x2 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical analysis of the product - report

Table 1: Static force (pull vs distance) - characteristics MW 20x2 / N38

Table 2: Shear capacity (vertical surface) MW 20x2 / N38

Table 3: Vertical assembly (sliding) - vertical pull MW 20x2 / N38

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

Table 5: Thermal stability (stability) - resistance threshold MW 20x2 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field collision MW 20x2 / N38

Table 7: Protective zones (implants) - precautionary measures MW 20x2 / N38

Table 8: Dynamics (cracking risk) - 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. Wall mount (shear)

2. Efficiency vs thickness

3. Thermal stability

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

Chemical composition

Environmental data

Magnet pull force

Field Strength

Other proposals

SM 25x300 [2xM8] / N52 - magnetic separator

HH 16x5.3 [M3] / N38 - through hole magnetic holder

MP 41x15x10 / N38 - ring magnet

MW 38x12 / N38 - cylindrical magnet

Pros as well as cons of neodymium magnets.

Benefits

Limitations

Lifting parameters

Best holding force of the magnet in ideal parameters – what contributes to it?

Determinants of practical lifting force of a magnet

H&S for magnets

Operating temperature

Keep away from computers

Shattering risk

Caution required

Danger to pacemakers

Magnetic interference

Bone fractures

Do not drill into magnets

Sensitization to coating

Do not give to children

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (pull vs distance) - characteristics
MW 20x2 / N38

Table 2: Shear capacity (vertical surface)
MW 20x2 / N38

Table 3: Vertical assembly (sliding) - vertical pull
MW 20x2 / N38

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

Table 5: Thermal stability (stability) - resistance threshold
MW 20x2 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field collision
MW 20x2 / N38

Table 7: Protective zones (implants) - precautionary measures
MW 20x2 / N38

Table 8: Dynamics (cracking risk) - 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