Product available Ships tomorrow

MW 45x20 / 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 010071

GTIN/EAN: 5906301810704

5.00

Diameter Ø

45 mm [±0,1 mm]

Height

20 mm [±0,1 mm]

Weight

238.56 g

Magnetization Direction

↑ axial

Load capacity

60.94 kg / 597.79 N

Magnetic Induction

411.81 mT / 4118 Gs

Coating

[NiCuNi] Nickel

see parameters »

84.45 ZŁ with VAT / pcs + price for transport

68.66 ZŁ net + 23% VAT / pcs

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Force and structure of a neodymium magnet can be estimated using our our magnetic calculator.

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Technical details - MW 45x20 / N38 - cylindrical magnet

Specification / characteristics - MW 45x20 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010071
GTIN/EAN	5906301810704
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	45 mm [±0,1 mm]
Height	20 mm [±0,1 mm]
Weight	238.56 g
Magnetization Direction	↑ axial
Load capacity ~ ?	60.94 kg / 597.79 N
Magnetic Induction ~ ?	411.81 mT / 4118 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 45x20 / 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 magnet - technical parameters

These values represent the direct effect of a physical analysis. Values are based on algorithms for the class Nd₂Fe₁₄B. Operational parameters may deviate from the simulation results. Use these calculations as a reference point for designers.

Table 1: Static force (force vs distance) - power drop
MW 45x20 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	4117 Gs 411.7 mT	60.94 kg / 134.35 LBS 60940.0 g / 597.8 N	dangerous!
1 mm	3955 Gs 395.5 mT	56.23 kg / 123.96 LBS 56228.7 g / 551.6 N	dangerous!
2 mm	3786 Gs 378.6 mT	51.51 kg / 113.57 LBS 51512.3 g / 505.3 N	dangerous!
3 mm	3613 Gs 361.3 mT	46.91 kg / 103.42 LBS 46911.0 g / 460.2 N	dangerous!
5 mm	3263 Gs 326.3 mT	38.28 kg / 84.40 LBS 38282.6 g / 375.6 N	dangerous!
10 mm	2442 Gs 244.2 mT	21.43 kg / 47.26 LBS 21434.6 g / 210.3 N	dangerous!
15 mm	1776 Gs 177.6 mT	11.34 kg / 25.00 LBS 11340.0 g / 111.2 N	dangerous!
20 mm	1285 Gs 128.5 mT	5.93 kg / 13.08 LBS 5932.8 g / 58.2 N	warning
30 mm	694 Gs 69.4 mT	1.73 kg / 3.82 LBS 1730.8 g / 17.0 N	low risk
50 mm	249 Gs 24.9 mT	0.22 kg / 0.49 LBS 222.3 g / 2.2 N	low risk

Grip strength weakens significantly with every subsequent millimeter of distance. Keep in mind that every additional insulation layer (e.g., dirt, varnish, dust) strongly reduces the pull force. Magnetic products operate strongest during direct contact; gap nullifies the force. Notice how quickly the load capacity fall, when the product does not adhere tightly to the steel surface. When designing the mounting, avoid additional spacers.

Table 2: Vertical force (vertical surface)
MW 45x20 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	12.19 kg / 26.87 LBS 12188.0 g / 119.6 N
1 mm	Stal (~0.2)	11.25 kg / 24.79 LBS 11246.0 g / 110.3 N
2 mm	Stal (~0.2)	10.30 kg / 22.71 LBS 10302.0 g / 101.1 N
3 mm	Stal (~0.2)	9.38 kg / 20.68 LBS 9382.0 g / 92.0 N
5 mm	Stal (~0.2)	7.66 kg / 16.88 LBS 7656.0 g / 75.1 N
10 mm	Stal (~0.2)	4.29 kg / 9.45 LBS 4286.0 g / 42.0 N
15 mm	Stal (~0.2)	2.27 kg / 5.00 LBS 2268.0 g / 22.2 N
20 mm	Stal (~0.2)	1.19 kg / 2.61 LBS 1186.0 g / 11.6 N
30 mm	Stal (~0.2)	0.35 kg / 0.76 LBS 346.0 g / 3.4 N
50 mm	Stal (~0.2)	0.04 kg / 0.10 LBS 44.0 g / 0.4 N

The table below presents the theoretical holding capacity needed to start the shifting of the magnet downwards against a vertical metal surface (assuming standard friction coefficient). The holding force depends on the separation distance between the magnet and the surface.

Table 3: Vertical assembly (shearing) - vertical pull
MW 45x20 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	18.28 kg / 40.30 LBS 18282.0 g / 179.3 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	12.19 kg / 26.87 LBS 12188.0 g / 119.6 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	6.09 kg / 13.43 LBS 6094.0 g / 59.8 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	30.47 kg / 67.17 LBS 30470.0 g / 298.9 N

When hanging a magnet on a upright surface (e.g., a board), it will only hold just approx. 1/5 of its maximum pull force. Gravitational force and a weak degree of grip mean that products slide down faster than they pull off. Planning a hanger? Remember that the shear force is much weaker than the maximum static pull force. On a smooth steel, the element will slip down under a noticeably lighter load. Using a rubber pad can drastically raise the stability.

Table 4: Steel thickness (saturation) - sheet metal selection
MW 45x20 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	3%	2.03 kg / 4.48 LBS 2031.3 g / 19.9 N
1 mm	8%	5.08 kg / 11.20 LBS 5078.3 g / 49.8 N
2 mm	17%	10.16 kg / 22.39 LBS 10156.7 g / 99.6 N
3 mm	25%	15.24 kg / 33.59 LBS 15235.0 g / 149.5 N
5 mm	42%	25.39 kg / 55.98 LBS 25391.7 g / 249.1 N
10 mm	83%	50.78 kg / 111.96 LBS 50783.3 g / 498.2 N
11 mm	92%	55.86 kg / 123.15 LBS 55861.7 g / 548.0 N
12 mm	100%	60.94 kg / 134.35 LBS 60940.0 g / 597.8 N

A too thin steel cannot focus the full magnetic flux, which wastes potential of the holder. If you attach a powerful product to a thin surface, the flux will pass right through and the holding will be smaller. To squeeze the maximum of this magnet's power, you require a sufficiently solid element of steel. The saturation effect causes that on sheet metal structures (e.g., appliance housings), the holder works worse. We recommend selecting the steel dimension from these parameters.

Table 5: Working in heat (material behavior) - thermal limit
MW 45x20 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	60.94 kg / 134.35 LBS 60940.0 g / 597.8 N	OK
40 °C	-2.2%	59.60 kg / 131.39 LBS 59599.3 g / 584.7 N	OK
60 °C	-4.4%	58.26 kg / 128.44 LBS 58258.6 g / 571.5 N
80 °C	-6.6%	56.92 kg / 125.48 LBS 56918.0 g / 558.4 N
100 °C	-28.8%	43.39 kg / 95.66 LBS 43389.3 g / 425.6 N

Standard neodymium magnets change their properties parameters past the thermal threshold. Avoid high temperatures – high temperature can irreversibly destroy this product. With every degree above norm, the magnet's force momentarily decreases. Refrain from using this product near heat sources higher than its operating temperature limit. Ignoring the limit will cause irreversible degradation of magnetism.

*Engineering note: Thermal stability is determined by both grade, but also on the magnet's shape. Flat magnets (low Pc) may lose charge permanently sooner compared to rod magnets. The danger warning in the table signals a risk of irreversible loss for this specific geometry.

Table 6: Two magnets (repulsion) - field range
MW 45x20 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	166.23 kg / 366.47 LBS 5 401 Gs	24.93 kg / 54.97 LBS 24934 g / 244.6 N	N/A
1 mm	159.87 kg / 352.45 LBS 8 076 Gs	23.98 kg / 52.87 LBS 23980 g / 235.2 N	143.88 kg / 317.20 LBS ~0 Gs
2 mm	153.38 kg / 338.14 LBS 7 910 Gs	23.01 kg / 50.72 LBS 23007 g / 225.7 N	138.04 kg / 304.33 LBS ~0 Gs
3 mm	146.92 kg / 323.90 LBS 7 742 Gs	22.04 kg / 48.58 LBS 22038 g / 216.2 N	132.23 kg / 291.51 LBS ~0 Gs
5 mm	134.19 kg / 295.83 LBS 7 399 Gs	20.13 kg / 44.37 LBS 20128 g / 197.5 N	120.77 kg / 266.25 LBS ~0 Gs
10 mm	104.43 kg / 230.22 LBS 6 527 Gs	15.66 kg / 34.53 LBS 15664 g / 153.7 N	93.98 kg / 207.20 LBS ~0 Gs
20 mm	58.47 kg / 128.90 LBS 4 884 Gs	8.77 kg / 19.34 LBS 8770 g / 86.0 N	52.62 kg / 116.01 LBS ~0 Gs
50 mm	8.61 kg / 18.98 LBS 1 874 Gs	1.29 kg / 2.85 LBS 1291 g / 12.7 N	7.75 kg / 17.08 LBS ~0 Gs
60 mm	4.72 kg / 10.41 LBS 1 388 Gs	0.71 kg / 1.56 LBS 708 g / 6.9 N	4.25 kg / 9.37 LBS ~0 Gs
70 mm	2.68 kg / 5.91 LBS 1 046 Gs	0.40 kg / 0.89 LBS 402 g / 3.9 N	2.41 kg / 5.32 LBS ~0 Gs
80 mm	1.58 kg / 3.48 LBS 803 Gs	0.24 kg / 0.52 LBS 237 g / 2.3 N	1.42 kg / 3.14 LBS ~0 Gs
90 mm	0.96 kg / 2.12 LBS 627 Gs	0.14 kg / 0.32 LBS 145 g / 1.4 N	0.87 kg / 1.91 LBS ~0 Gs
100 mm	0.61 kg / 1.34 LBS 497 Gs	0.09 kg / 0.20 LBS 91 g / 0.9 N	0.55 kg / 1.20 LBS ~0 Gs

Two magnets interact from a wider radius than a magnet and steel setup. Such a system of magnet-to-magnet produces a massive flux and a wider radius of performance. Designing a powerful holder? Utilize two neodymiums instead of one magnet and a striker plate. Exercise caution that when connecting a pair of magnets, the pinch force is massive. The repulsion force is marginally weaker than the connection force, but still significant.
*The magnetic induction in repulsion mode is approximately ~0 Gs at the midpoint between the magnets (caused by magnetic field nullification).
Note: Results apply to friction force of dual matching magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Safety (HSE) (implants) - precautionary measures
MW 45x20 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	22.5 cm
Hearing aid	10 Gs (1.0 mT)	17.5 cm
Mechanical watch	20 Gs (2.0 mT)	14.0 cm
Mobile device	40 Gs (4.0 mT)	10.5 cm
Remote	50 Gs (5.0 mT)	10.0 cm
Payment card	400 Gs (40.0 mT)	4.5 cm
HDD hard drive	600 Gs (60.0 mT)	3.5 cm

Extremely neodym field poses a serious hazard to electronics as well as pacemakers. These magnets produce a field that disrupts operation of sensitive medical devices. Notice: the invisible magnetic field acts through matter and housings. Special caution must be taken by people with cochlear implants and insulin pumps. Also at risk are: automatic timepieces, remotes, membranes, and screens. Do not bring the product near payment cards, hard drives, or sensitive navigation tools.

Table 8: Collisions (cracking risk) - collision effects
MW 45x20 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	19.34 km/h (5.37 m/s)	3.44 J
30 mm	28.41 km/h (7.89 m/s)	7.43 J
50 mm	36.12 km/h (10.03 m/s)	12.01 J
100 mm	50.98 km/h (14.16 m/s)	23.92 J

Neodymium magnets are very brittle – a strong collision with metal risks their cracking. Control the attraction moment – a magnet released freely speeds with massive force. Impact energy can destroy the magnet or dangerous crushing to fingers. Hold the magnet firmly during bringing near metal so it doesn't hit with great force against the steel surface. A collision at high speed ends with a crack of the magnet. Wear eye protection when handling with powerful specimens.

Table 9: Coating parameters (durability)
MW 45x20 / 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. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Electrical data (Flux)
MW 45x20 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	66 952 Mx	669.5 µWb
P_c Coefficient	0.54	Low (Flat)

Total magnetic flux emitted by the magnet pole. Key data in coil applications and motors. P_c value defines the working geometry.

Table 11: Hydrostatics and buoyancy
MW 45x20 / N38

Environment	Effective steel pull	Effect
Air (land)	60.94 kg	Standard
Water (riverbed)	69.78 kg (+8.84 kg buoyancy gain)	+14.5%

Corrosion warning: 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. However, remember the water resistance when pulling the rope quickly.

1. Sliding resistance

*Caution: On a vertical wall, the magnet holds just approx. 20-30% of its nominal pull.

2. Efficiency vs thickness

*Thin steel (e.g. computer case) drastically limits the holding force.

3. Power loss vs temp

*For N38 material, the critical limit is 80°C.

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.54

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: 010071-2026

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The offered product is an exceptionally strong cylindrical magnet, produced from durable NdFeB material, which, with dimensions of Ø45x20 mm, guarantees the highest energy density. This specific item is characterized by an accuracy of ±0.1mm and professional build quality, making it an ideal solution for professional engineers and designers. As a magnetic rod with significant force (approx. 60.94 kg), this product is in stock from our European logistics center, ensuring quick order fulfillment. Furthermore, its 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 sensors, and efficient magnetic separators, where maximum induction on a small surface counts. Thanks to the high power of 597.79 N with a weight of only 238.56 g, this rod is indispensable in miniature devices and wherever every gram matters.

Since our magnets have a very precise dimensions, the best method is to glue them into holes with a slightly larger diameter (e.g., 45.1 mm) using two-component epoxy glues. To ensure stability in industry, specialized industrial adhesives are used, which do not react with the nickel coating and fill the gap, guaranteeing high repeatability of the connection.

Magnets NdFeB grade N38 are suitable for 90% of applications in modeling and machine building, where extreme miniaturization with maximum force is not required. If you need the strongest magnets in the same volume (Ø45x20), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our store.

The presented product is a neodymium magnet with precisely defined parameters: diameter 45 mm and height 20 mm. The value of 597.79 N means that the magnet is capable of holding a weight many times exceeding its own mass of 238.56 g. The product has a [NiCuNi] coating, which protects the surface 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 45 mm. 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 through the diameter if your project requires it.

Pros and cons of rare earth magnets.

Pros

In addition to their pulling strength, neodymium magnets provide the following advantages:

They virtually do not lose strength, because even after ten years the performance loss is only ~1% (in laboratory conditions),
They show high resistance to demagnetization induced by presence of other magnetic fields,
A magnet with a shiny gold surface has better aesthetics,
Magnetic induction on the working part of the magnet remains maximum,
Thanks to resistance to high temperature, they are able to function (depending on the form) even at temperatures up to 230°C and higher...
Thanks to versatility in constructing and the capacity to modify to client solutions,
Universal use in high-tech industry – they are used in data components, motor assemblies, medical devices, as well as industrial machines.
Relatively small size with high pulling force – neodymium magnets offer high power in compact dimensions, which makes them useful in compact constructions

Disadvantages

Disadvantages of neodymium magnets:

They are prone to damage upon too strong impacts. To avoid cracks, it is worth securing magnets using a steel holder. Such protection not only shields the magnet but also increases its resistance to damage
Neodymium magnets lose strength when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of strength (a factor is the shape as well as 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
They oxidize in a humid environment. For use outdoors we advise using waterproof magnets e.g. in rubber, plastic
We recommend a housing - magnetic holder, due to difficulties in realizing nuts inside the magnet and complicated forms.
Health risk to health – tiny shards of magnets pose a threat, when accidentally swallowed, which becomes key in the context of child health protection. It is also worth noting that tiny parts of these products are able to complicate diagnosis medical in case of swallowing.
Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Lifting parameters

Maximum lifting capacity of the magnet – what affects it?

Holding force of 60.94 kg is a result of laboratory testing executed under standard conditions:

using a plate made of high-permeability steel, acting as a circuit closing element
possessing a massiveness of minimum 10 mm to ensure full flux closure
with a plane cleaned and smooth
without any insulating layer between the magnet and steel
during detachment in a direction vertical to the mounting surface
in stable room temperature

Key elements affecting lifting force

Real force impacted by working environment parameters, including (from most important):

Distance – the presence of any layer (paint, dirt, air) interrupts the magnetic circuit, which lowers capacity steeply (even by 50% at 0.5 mm).
Pull-off angle – remember that the magnet holds strongest perpendicularly. Under shear forces, the holding force drops significantly, often to levels of 20-30% of the nominal value.
Substrate thickness – to utilize 100% power, the steel must be sufficiently thick. Paper-thin metal restricts the lifting capacity (the magnet "punches through" it).
Plate material – low-carbon steel gives the best results. Higher carbon content decrease magnetic properties and holding force.
Plate texture – smooth surfaces guarantee perfect abutment, which improves force. Uneven metal reduce efficiency.
Thermal environment – heating the magnet results in weakening of induction. It is worth remembering the maximum operating temperature for a given model.

Lifting capacity testing was performed on a smooth plate of suitable thickness, under a perpendicular pulling force, however under attempts to slide the magnet the holding force is lower. Additionally, even a small distance between the magnet’s surface and the plate reduces the holding force.

H&S for magnets

Maximum temperature

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

Threat to navigation

GPS units and smartphones are extremely sensitive to magnetic fields. Direct contact with a powerful NdFeB magnet can ruin the sensors in your phone.

ICD Warning

Medical warning: Strong magnets can turn off heart devices and defibrillators. Stay away if you have medical devices.

Protect data

Do not bring magnets near a purse, laptop, or screen. The magnetic field can destroy these devices and wipe information from cards.

Powerful field

Exercise caution. Rare earth magnets attract from a distance and connect with massive power, often quicker than you can react.

Skin irritation risks

Nickel alert: The Ni-Cu-Ni coating contains nickel. If an allergic reaction happens, cease working with magnets and wear gloves.

Do not give to children

Product intended for adults. Tiny parts pose a choking risk, leading to severe trauma. Store away from kids and pets.

Mechanical processing

Fire warning: Rare earth powder is highly flammable. Do not process magnets in home conditions as this risks ignition.

Fragile material

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

Finger safety

Pinching hazard: The pulling power is so immense that it can result in blood blisters, crushing, and broken bones. Protective gloves are recommended.

Danger! Details about hazards in the article: Safety of working with magnets.

MW 45x20 / N38 - cylindrical magnet

Technical details - MW 45x20 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering simulation of the magnet - technical parameters

Table 1: Static force (force vs distance) - power drop MW 45x20 / N38

Table 2: Vertical force (vertical surface) MW 45x20 / N38

Table 3: Vertical assembly (shearing) - vertical pull MW 45x20 / N38

Table 4: Steel thickness (saturation) - sheet metal selection MW 45x20 / N38

Table 5: Working in heat (material behavior) - thermal limit MW 45x20 / N38

Table 6: Two magnets (repulsion) - field range MW 45x20 / N38

Table 7: Safety (HSE) (implants) - precautionary measures MW 45x20 / N38

Table 8: Collisions (cracking risk) - collision effects MW 45x20 / N38

Table 9: Coating parameters (durability) MW 45x20 / N38

Table 10: Electrical data (Flux) MW 45x20 / N38

Table 11: Hydrostatics and buoyancy MW 45x20 / N38

1. Sliding resistance

2. Efficiency vs thickness

3. Power loss vs temp

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

Chemical composition

Ecology and recycling (GPSR)

Pulling force

Magnetic Field

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MP 25x8x5 / N38 - ring magnet

Pros and cons of rare earth magnets.

Pros

Disadvantages

Lifting parameters

Maximum lifting capacity of the magnet – what affects it?

Key elements affecting lifting force

H&S for magnets

Maximum temperature

Threat to navigation

ICD Warning

Protect data

Powerful field

Skin irritation risks

Do not give to children

Mechanical processing

Fragile material

Finger safety

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs distance) - power drop
MW 45x20 / N38

Table 2: Vertical force (vertical surface)
MW 45x20 / N38

Table 3: Vertical assembly (shearing) - vertical pull
MW 45x20 / N38

Table 4: Steel thickness (saturation) - sheet metal selection
MW 45x20 / N38

Table 5: Working in heat (material behavior) - thermal limit
MW 45x20 / N38

Table 6: Two magnets (repulsion) - field range
MW 45x20 / N38

Table 7: Safety (HSE) (implants) - precautionary measures
MW 45x20 / N38

Table 8: Collisions (cracking risk) - collision effects
MW 45x20 / N38

Table 9: Coating parameters (durability)
MW 45x20 / N38

Table 10: Electrical data (Flux)
MW 45x20 / N38

Table 11: Hydrostatics and buoyancy
MW 45x20 / N38