Product available Ships tomorrow

MW 20x5 / 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 010044

GTIN/EAN: 5906301810438

5.00

Diameter Ø

20 mm [±0,1 mm]

Height

5 mm [±0,1 mm]

Weight

11.78 g

Magnetization Direction

↑ axial

Load capacity

6.93 kg / 67.95 N

Magnetic Induction

277.16 mT / 2772 Gs

Coating

[NiCuNi] Nickel

technical parameters »

5.56 ZŁ with VAT / pcs + price for transport

4.52 ZŁ net + 23% VAT / pcs

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Parameters and form of neodymium magnets can be verified with our force calculator.

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Technical of the product - MW 20x5 / N38 - cylindrical magnet

Specification / characteristics - MW 20x5 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010044
GTIN/EAN	5906301810438
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	5 mm [±0,1 mm]
Weight	11.78 g
Magnetization Direction	↑ axial
Load capacity ~ ?	6.93 kg / 67.95 N
Magnetic Induction ~ ?	277.16 mT / 2772 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 20x5 / 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 modeling of the product - report

These values are the outcome of a engineering simulation. Results are based on algorithms for the class Nd₂Fe₁₄B. Operational performance may deviate from the simulation results. Please consider these data as a preliminary roadmap for designers.

Table 1: Static pull force (force vs gap) - power drop
MW 20x5 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	2771 Gs 277.1 mT	6.93 kg / 15.28 lbs 6930.0 g / 68.0 N	strong
1 mm	2573 Gs 257.3 mT	5.97 kg / 13.17 lbs 5975.0 g / 58.6 N	strong
2 mm	2340 Gs 234.0 mT	4.94 kg / 10.89 lbs 4940.1 g / 48.5 N	strong
3 mm	2092 Gs 209.2 mT	3.95 kg / 8.70 lbs 3948.3 g / 38.7 N	strong
5 mm	1611 Gs 161.1 mT	2.34 kg / 5.17 lbs 2343.4 g / 23.0 N	strong
10 mm	775 Gs 77.5 mT	0.54 kg / 1.19 lbs 541.6 g / 5.3 N	low risk
15 mm	387 Gs 38.7 mT	0.13 kg / 0.30 lbs 135.0 g / 1.3 N	low risk
20 mm	211 Gs 21.1 mT	0.04 kg / 0.09 lbs 40.2 g / 0.4 N	low risk
30 mm	80 Gs 8.0 mT	0.01 kg / 0.01 lbs 5.7 g / 0.1 N	low risk
50 mm	20 Gs 2.0 mT	0.00 kg / 0.00 lbs 0.4 g / 0.0 N	low risk

Magnetic force weakens sharply with every subsequent millimeter of distance. Remember that even the smallest gap (e.g., dirt, paint, rust) significantly diminishes the holding power. Neodymiums hold strongest at the point of direct contact; distance drastically cuts the power. See how rapidly the load capacity fall, when the magnet does not adhere flatly to the steel surface. When designing the assembly, eliminate unnecessary gaps.

Table 2: Vertical force (wall)
MW 20x5 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	1.39 kg / 3.06 lbs 1386.0 g / 13.6 N
1 mm	Stal (~0.2)	1.19 kg / 2.63 lbs 1194.0 g / 11.7 N
2 mm	Stal (~0.2)	0.99 kg / 2.18 lbs 988.0 g / 9.7 N
3 mm	Stal (~0.2)	0.79 kg / 1.74 lbs 790.0 g / 7.7 N
5 mm	Stal (~0.2)	0.47 kg / 1.03 lbs 468.0 g / 4.6 N
10 mm	Stal (~0.2)	0.11 kg / 0.24 lbs 108.0 g / 1.1 N
15 mm	Stal (~0.2)	0.03 kg / 0.06 lbs 26.0 g / 0.3 N
20 mm	Stal (~0.2)	0.01 kg / 0.02 lbs 8.0 g / 0.1 N
30 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 2.0 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 force needed to cause the shifting of the magnet downwards on a upright steel plate (assuming typical friction). The holding force varies with the air gap between the magnet and the surface.

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MW 20x5 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	2.08 kg / 4.58 lbs 2079.0 g / 20.4 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	1.39 kg / 3.06 lbs 1386.0 g / 13.6 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.69 kg / 1.53 lbs 693.0 g / 6.8 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	3.47 kg / 7.64 lbs 3465.0 g / 34.0 N

When placing a element on a vertical plane (e.g., a fridge), it will maintain only approx. 20%-30% of its nominal power. Gravity and a low friction coefficient mean that magnets slide down easier than they pop off the substrate. Planning a wall mount? Remember that the sliding force is noticeably lower than the perpendicular breakaway force. On a painted metal, the holder will slide down under a much lighter load. Utilizing a rubberized pad can drastically improve the result.

Table 4: Material efficiency (substrate influence) - power losses
MW 20x5 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.69 kg / 1.53 lbs 693.0 g / 6.8 N
1 mm	25%	1.73 kg / 3.82 lbs 1732.5 g / 17.0 N
2 mm	50%	3.47 kg / 7.64 lbs 3465.0 g / 34.0 N
3 mm	75%	5.20 kg / 11.46 lbs 5197.5 g / 51.0 N
5 mm	100%	6.93 kg / 15.28 lbs 6930.0 g / 68.0 N
10 mm	100%	6.93 kg / 15.28 lbs 6930.0 g / 68.0 N
11 mm	100%	6.93 kg / 15.28 lbs 6930.0 g / 68.0 N
12 mm	100%	6.93 kg / 15.28 lbs 6930.0 g / 68.0 N

A thin sheet is incapable of focus the full magnetic flux, which squanders power of the magnet. If you attach a powerful product to a too thin substrate, the field will pass right through and the holding will be smaller. To achieve full efficiency of this magnet's power, you require a sufficiently solid backing of steel. The saturation effect causes that on sheet metal structures (e.g., car bodies), the magnet works worse. We advise picking the steel dimension from these parameters.

Table 5: Thermal resistance (stability) - power drop
MW 20x5 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	6.93 kg / 15.28 lbs 6930.0 g / 68.0 N	OK
40 °C	-2.2%	6.78 kg / 14.94 lbs 6777.5 g / 66.5 N	OK
60 °C	-4.4%	6.63 kg / 14.61 lbs 6625.1 g / 65.0 N
80 °C	-6.6%	6.47 kg / 14.27 lbs 6472.6 g / 63.5 N
100 °C	-28.8%	4.93 kg / 10.88 lbs 4934.2 g / 48.4 N

Ordinary NdFeB products irreversibly lose strength after exceeding the maximum temperature. Avoid high temperatures – excessive heat can permanently damage this product. As the temperature rises, the magnet's force temporarily drops. Avoid using this product in hot environments higher than its working range. Ignoring the limit will result in destruction of magnetic properties.

*Engineering note: Temperature resistance is determined by both grade, as well as the dimension ratios. Low-profile magnets (pancake types) risk losing magnetic properties under lower heat stress than long magnets. The danger warning in the table indicates a risk of irreversible loss for this specific geometry.

Table 6: Magnet-Magnet interaction (repulsion) - field range
MW 20x5 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Strength (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	14.87 kg / 32.79 lbs 4 380 Gs	2.23 kg / 4.92 lbs 2231 g / 21.9 N	N/A
1 mm	13.89 kg / 30.63 lbs 5 357 Gs	2.08 kg / 4.59 lbs 2084 g / 20.4 N	12.50 kg / 27.57 lbs ~0 Gs
2 mm	12.82 kg / 28.27 lbs 5 146 Gs	1.92 kg / 4.24 lbs 1923 g / 18.9 N	11.54 kg / 25.44 lbs ~0 Gs
3 mm	11.71 kg / 25.82 lbs 4 918 Gs	1.76 kg / 3.87 lbs 1757 g / 17.2 N	10.54 kg / 23.24 lbs ~0 Gs
5 mm	9.51 kg / 20.97 lbs 4 433 Gs	1.43 kg / 3.15 lbs 1427 g / 14.0 N	8.56 kg / 18.88 lbs ~0 Gs
10 mm	5.03 kg / 11.09 lbs 3 223 Gs	0.75 kg / 1.66 lbs 754 g / 7.4 N	4.53 kg / 9.98 lbs ~0 Gs
20 mm	1.16 kg / 2.56 lbs 1 549 Gs	0.17 kg / 0.38 lbs 174 g / 1.7 N	1.05 kg / 2.31 lbs ~0 Gs
50 mm	0.03 kg / 0.07 lbs 251 Gs	0.00 kg / 0.01 lbs 5 g / 0.0 N	0.03 kg / 0.06 lbs ~0 Gs
60 mm	0.01 kg / 0.03 lbs 159 Gs	0.00 kg / 0.00 lbs 2 g / 0.0 N	0.01 kg / 0.02 lbs ~0 Gs
70 mm	0.01 kg / 0.01 lbs 107 Gs	0.00 kg / 0.00 lbs 1 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
80 mm	0.00 kg / 0.01 lbs 75 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 54 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 41 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs

Two strong neodymiums attract each other from a much further distance than a magnet and steel setup. Such a system of two magnets produces a massive flux and a wider radius of action. Planning to create a solid fastener? Apply two magnets instead of one magnet and a steel. Exercise caution that when attracting two neodymiums, the impact force is huge. The levitation is slightly lower than the attraction, but still impressive.
*The magnetic induction between like poles drops to ~0 Gs at the midpoint of the gap (resulting from vector opposition).
Important: Figures demonstrate friction force of dual identical magnets (friction ~0.15 for Ni-Ni layer).

Table 7: Hazards (electronics) - precautionary measures
MW 20x5 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	8.5 cm
Hearing aid	10 Gs (1.0 mT)	6.5 cm
Timepiece	20 Gs (2.0 mT)	5.5 cm
Phone / Smartphone	40 Gs (4.0 mT)	4.0 cm
Remote	50 Gs (5.0 mT)	4.0 cm
Payment card	400 Gs (40.0 mT)	1.5 cm
HDD hard drive	600 Gs (60.0 mT)	1.5 cm

Powerful magnet radiation is a real danger to electronic devices as well as medical implants. These magnets produce a flux that destroys function of sensitive medical devices. Be aware: the invisible magnetic field acts through matter and housings. Special caution must be exercised by people with cochlear implants and insulin pumps. Also at risk are: automatic timepieces, remotes, speakers, and displays. Do not place the magnet near cards, HDD media, or sensitive navigation tools.

Table 8: Impact energy (kinetic energy) - collision effects
MW 20x5 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	25.63 km/h (7.12 m/s)	0.30 J
30 mm	42.39 km/h (11.77 m/s)	0.82 J
50 mm	54.70 km/h (15.19 m/s)	1.36 J
100 mm	77.35 km/h (21.49 m/s)	2.72 J

Neodymium magnets are delicate – a collision with steel can result in shattering. Watch the impact speed – a neodymium left loose turns into a projectile. Striking energy can trigger coating fragments or painful pinches to skin. Hold the magnet firmly during installation so it doesn't hit with great force against the steel surface. A collision at high speed means shattering of the magnet. Wear safety glasses when handling with powerful specimens.

Table 9: Coating parameters (durability)
MW 20x5 / 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)

Neodymium magnets are highly susceptible to corrosion without proper protection. Note the thickness of the protective layer.

Table 10: Construction data (P_c)
MW 20x5 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	9 675 Mx	96.7 µWb
P_c Coefficient	0.35	Low (Flat)

Total magnetic flux passing through the magnet pole. Essential parameter when building generators as well as sensors. The P_c coefficient defines the working geometry.

Table 11: Underwater work (magnet fishing)
MW 20x5 / N38

Environment	Effective steel pull	Effect
Air (land)	6.93 kg	Standard
Water (riverbed)	7.93 kg (+1.00 kg buoyancy gain)	+14.5%

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

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. Sliding resistance

*Caution: On a vertical surface, the magnet holds just ~20% of its perpendicular strength.

2. Steel saturation

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

3. Thermal stability

*For N38 grade, the safety limit is 80°C.

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.35

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.

Engineering data and GPSR

Material specification

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

Sustainability

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

Safety card (GPSR)

responsible entity

Dhit sp. z o.o.

ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki

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

batch number/type

id: 010044-2026

Magnet Unit Converter

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The presented product is an exceptionally strong rod magnet, made from advanced NdFeB material, which, at dimensions of Ø20x5 mm, guarantees the highest energy density. This specific item boasts high dimensional repeatability and industrial build quality, making it a perfect solution for professional engineers and designers. As a magnetic rod with significant force (approx. 6.93 kg), this product is available off-the-shelf from our warehouse in Poland, ensuring quick order fulfillment. Moreover, its Ni-Cu-Ni coating secures it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.

It successfully proves itself in modeling, advanced automation, and broadly understood industry, serving as a positioning or actuating element. Thanks to the high power of 67.95 N with a weight of only 11.78 g, this cylindrical magnet is indispensable in electronics and wherever low weight is crucial.

Since our magnets have a tolerance of ±0.1mm, the best method 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 automation, specialized industrial adhesives are used, which are safe for nickel and fill the gap, guaranteeing high repeatability of the connection.

Magnets NdFeB grade N38 are strong enough for 90% of applications in modeling and machine building, where excessive miniaturization with maximum force is not required. If you need the strongest magnets in the same volume (Ø20x5), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our warehouse.

The presented product is a neodymium magnet with precisely defined parameters: diameter 20 mm and height 5 mm. The key parameter here is the holding force amounting to approximately 6.93 kg (force ~67.95 N), which, with such defined dimensions, proves the high grade of the NdFeB material. The product has a [NiCuNi] coating, which secures it against oxidation, giving it an aesthetic, silvery shine.

Standardly, the magnetic axis runs through the center of the cylinder, causing the greatest attraction force to occur on the bases with a diameter of 20 mm. 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 diametrically if your project requires it.

Advantages and disadvantages of rare earth magnets.

Strengths

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

They have constant strength, and over more than ten years their performance decreases symbolically – ~1% (according to theory),
They retain their magnetic properties even under strong external field,
A magnet with a smooth gold surface has better aesthetics,
The surface of neodymium magnets generates a concentrated magnetic field – this is a distinguishing feature,
Thanks to resistance to high temperature, they can operate (depending on the form) even at temperatures up to 230°C and higher...
Thanks to modularity in constructing and the capacity to adapt to complex applications,
Huge importance in future technologies – they find application in magnetic memories, electromotive mechanisms, advanced medical instruments, also industrial machines.
Thanks to efficiency per cm³, small magnets offer high operating force, occupying minimum space,

Disadvantages

Disadvantages of neodymium magnets:

Brittleness is one of their disadvantages. Upon strong impact they can break. We recommend keeping them in a special holder, which not only protects them against impacts but also increases their durability
Neodymium magnets lose strength when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop 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 extremely resistant to heat
They oxidize in a humid environment. For use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
Due to limitations in producing threads and complex shapes in magnets, we propose using a housing - magnetic mount.
Possible danger resulting from small fragments of magnets can be dangerous, in case of ingestion, which becomes key in the context of child safety. It is also worth noting that small elements of these products are able to disrupt the diagnostic process medical when they are in the body.
With mass production the cost of neodymium magnets is a challenge,

Lifting parameters

Maximum lifting capacity of the magnet – what contributes to it?

Holding force of 6.93 kg is a result of laboratory testing performed under specific, ideal conditions:

using a sheet made of low-carbon steel, acting as a magnetic yoke
with a thickness no less than 10 mm
with a plane perfectly flat
under conditions of ideal adhesion (metal-to-metal)
for force applied at a right angle (in the magnet axis)
in stable room temperature

Practical lifting capacity: influencing factors

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

Distance – existence of any layer (rust, tape, air) acts as an insulator, which reduces power steeply (even by 50% at 0.5 mm).
Force direction – remember that the magnet has greatest strength perpendicularly. Under sliding down, the capacity drops drastically, often to levels of 20-30% of the nominal value.
Substrate thickness – to utilize 100% power, the steel must be adequately massive. Paper-thin metal restricts the lifting capacity (the magnet "punches through" it).
Material type – the best choice is pure iron steel. Cast iron may attract less.
Surface structure – the smoother and more polished the surface, the larger the contact zone and stronger the hold. Roughness creates an air distance.
Operating temperature – neodymium magnets have a sensitivity to temperature. At higher temperatures they lose power, and at low temperatures they can be stronger (up to a certain limit).

Lifting capacity was measured with the use of a steel plate with a smooth surface of optimal thickness (min. 20 mm), under perpendicular pulling force, in contrast under shearing force the holding force is lower. Additionally, even a small distance between the magnet’s surface and the plate lowers the holding force.

Safety rules for work with NdFeB magnets

Keep away from computers

Avoid bringing magnets close to a wallet, computer, or screen. The magnetic field can permanently damage these devices and erase data from cards.

Magnets are brittle

Despite the nickel coating, the material is brittle and not impact-resistant. Do not hit, as the magnet may crumble into hazardous fragments.

Power loss in heat

Monitor thermal conditions. Exposing the magnet to high heat will permanently weaken its magnetic structure and strength.

No play value

Absolutely keep magnets away from children. Risk of swallowing is high, and the consequences of magnets connecting inside the body are life-threatening.

Conscious usage

Before use, check safety instructions. Uncontrolled attraction can destroy the magnet or injure your hand. Be predictive.

Flammability

Dust produced during grinding of magnets is self-igniting. Avoid drilling into magnets unless you are an expert.

Crushing force

Protect your hands. Two large magnets will snap together instantly with a force of several hundred kilograms, destroying everything in their path. Exercise extreme caution!

Warning for allergy sufferers

Certain individuals have a contact allergy to nickel, which is the typical protective layer for NdFeB magnets. Extended handling can result in a rash. We strongly advise wear safety gloves.

Threat to navigation

A powerful magnetic field disrupts the functioning of magnetometers in phones and GPS navigation. Keep magnets near a device to prevent damaging the sensors.

Pacemakers

Individuals with a ICD should maintain an absolute distance from magnets. The magnetism can stop the operation of the life-saving device.

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

MW 20x5 / N38 - cylindrical magnet

Technical of the product - MW 20x5 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering modeling of the product - report

Table 1: Static pull force (force vs gap) - power drop MW 20x5 / N38

Table 2: Vertical force (wall) MW 20x5 / N38

Table 3: Wall mounting (shearing) - behavior on slippery surfaces MW 20x5 / N38

Table 4: Material efficiency (substrate influence) - power losses MW 20x5 / N38

Table 5: Thermal resistance (stability) - power drop MW 20x5 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field range MW 20x5 / N38

Table 7: Hazards (electronics) - precautionary measures MW 20x5 / N38

Table 8: Impact energy (kinetic energy) - collision effects MW 20x5 / N38

Table 9: Coating parameters (durability) MW 20x5 / N38

Table 10: Construction data (Pc) MW 20x5 / N38

Table 11: Underwater work (magnet fishing) MW 20x5 / N38

1. Sliding resistance

2. Steel saturation

3. Thermal stability

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

Material specification

Sustainability

Pulling force

Field Strength

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UMC 25x6/4x8 / N38 - cylindrical magnetic holder

Advantages and disadvantages of rare earth magnets.

Strengths

Disadvantages

Lifting parameters

Maximum lifting capacity of the magnet – what contributes to it?

Practical lifting capacity: influencing factors

Safety rules for work with NdFeB magnets

Keep away from computers

Magnets are brittle

Power loss in heat

No play value

Conscious usage

Flammability

Crushing force

Warning for allergy sufferers

Threat to navigation

Pacemakers

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs gap) - power drop
MW 20x5 / N38

Table 2: Vertical force (wall)
MW 20x5 / N38

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MW 20x5 / N38

Table 4: Material efficiency (substrate influence) - power losses
MW 20x5 / N38

Table 5: Thermal resistance (stability) - power drop
MW 20x5 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field range
MW 20x5 / N38

Table 7: Hazards (electronics) - precautionary measures
MW 20x5 / N38

Table 8: Impact energy (kinetic energy) - collision effects
MW 20x5 / N38

Table 9: Coating parameters (durability)
MW 20x5 / N38

Table 10: Construction data (P_c)
MW 20x5 / N38

Table 11: Underwater work (magnet fishing)
MW 20x5 / N38