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

technical details »

84.45 ZŁ with VAT / pcs + price for transport

68.66 ZŁ net + 23% VAT / pcs

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Technical - 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 modeling of the product - technical parameters

The following information constitute the direct effect of a engineering simulation. Results rely on algorithms for the class Nd₂Fe₁₄B. Actual conditions may differ from theoretical values. Please consider these calculations as a supplementary guide for designers.

Table 1: Static force (force vs distance) - characteristics
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	critical level
1 mm	3955 Gs 395.5 mT	56.23 kg / 123.96 lbs 56228.7 g / 551.6 N	critical level
2 mm	3786 Gs 378.6 mT	51.51 kg / 113.57 lbs 51512.3 g / 505.3 N	critical level
3 mm	3613 Gs 361.3 mT	46.91 kg / 103.42 lbs 46911.0 g / 460.2 N	critical level
5 mm	3263 Gs 326.3 mT	38.28 kg / 84.40 lbs 38282.6 g / 375.6 N	critical level
10 mm	2442 Gs 244.2 mT	21.43 kg / 47.26 lbs 21434.6 g / 210.3 N	critical level
15 mm	1776 Gs 177.6 mT	11.34 kg / 25.00 lbs 11340.0 g / 111.2 N	critical level
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	weak grip
50 mm	249 Gs 24.9 mT	0.22 kg / 0.49 lbs 222.3 g / 2.2 N	weak grip

Magnetic force drops sharply per each millimeter of spacing. Remember that even a very thin break (e.g., dirt, paint, veneer) strongly diminishes the holding power. Magnets work optimally in perfect adhesion; air break drastically cuts the force. Notice how quickly the pull force plummet, when the product does not touch tightly to the metal substrate. When designing the arrangement, avoid additional spacers.

Table 2: Slippage force (wall)
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

This section indicates the approximate force required to start the sliding of the magnet downwards against a upright metal surface (assuming typical friction coefficient). This value is relative to the separation distance between the magnet and the metal.

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
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 mounting a holder on a upright surface (e.g., a fridge), it will maintain only approx. 20%-30% of nominal attraction strength. Gravitational force and a weak degree of grip cause that products slide down easier than they detach. Want to create a vertical fastening? Note that the shear force is significantly lower than the maximum static pull force. On a slippery surface, the element will slip down under a noticeably lighter cargo. Utilizing a rubberized pad can significantly improve the result.

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 thin metal plate is not enough to absorb the full magnetic flux, which squanders power of the holder. Should you install a neodymium to a weak sheet, the field will pass right through and the attraction force will be weaker. To utilize the maximum of this neodymium's power, you need a suitably thick element of metal. The material oversaturation means that on delicate walls (e.g., appliance housings), the product shows lower pull force. We advise picking the steel dimension from these parameters.

Table 5: Thermal resistance (stability) - resistance threshold
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

Ordinary NdFeB products change their properties parameters after exceeding the maximum temperature. Avoid high temperatures – heat can irreversibly damage this magnet. As the temperature rises, the magnet's power temporarily drops. Refrain from using this magnet in hot environments exceeding its safe range. Ignoring the limit will result in permanent loss of magnetism.

*Technical advisory: Thermal stability depends not only on the material grade, and the Permeance Coefficient Pc. Thin magnets (low Pc) may lose charge permanently under lower heat stress than long magnets. Red status in the table indicates a risk of irreversible loss for this particular item.

Table 6: Magnet-Magnet interaction (attraction) - field range
MW 45x20 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear 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 strong neodymiums interact from a wider radius than a magnet and steel setup. The connection of magnet-to-magnet creates a more powerful interaction and a further horizon of performance. Want to build a powerful holder? Use a pair of magnets instead of one magnet and a steel. Be careful that when connecting a pair of magnets, the collision energy is massive. The levitation is a bit weaker than the connection force, but still significant.
*The magnetic induction for N-N configuration reaches ~0 Gs at the midpoint of the gap (resulting from vector opposition).
Note: Calculations refer to sliding force of a pair of identical magnets (friction ~0.15 for Ni-Ni coating).

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

A strong magnetic field poses a serious hazard to electronic devices and medical implants. These NdFeB products generate a field that destroys function of sensitive medical devices. Be aware: the invisible magnetic field penetrates the body and plastic. Increased vigilance must be exercised by people with cochlear implants and drug dispensers. The risk also applies to: mechanical watches, car keys, speakers, and displays. Do not place the magnet near cards, hard drives, or sensitive navigation tools.

Table 8: Dynamics (cracking risk) - warning
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 prone to chipping – a collision with steel can result in shattering. Pay attention to connection velocity – a magnet released freely becomes dangerous. Impact energy can cause material chips or injury to fingers. Always hold the magnet during bringing near metal so it doesn't hit violently against the metal. A contact at a velocity of dozens of km/h ends with a crack of the magnet. Wear safety glasses when handling with powerful specimens.

Table 9: Anti-corrosion coating 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)

For outdoor applications, an epoxy coating is required; standard nickel is intended for indoor use. Note the thickness of the protective layer.

Table 10: Electrical data (P_c)
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 passing through the magnet pole. Essential parameter for generator designers and motors. The P_c coefficient defines the magnet's operating point.

Table 11: Submerged application
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%

Warning: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.

Contrary to myths, water does not block the magnetic field. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Shear force

*Note: On a vertical surface, the magnet retains merely a fraction of its max power.

2. Plate thickness effect

*Thin metal sheet (e.g. computer case) drastically reduces the holding force.

3. Power loss vs temp

*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) = 0.54

This simulation demonstrates the magnetic stability of the selected magnet under specific geometric conditions. The solid red line represents the demagnetization curve (material potential), while the dashed blue line is the load line based on the magnet's geometry. The P_c (Permeance Coefficient), also known as the load line slope, is a dimensionless value that describes the relationship between the magnet's shape and its magnetic stability. The intersection of these two lines (the black dot) is the operating point — it determines the actual magnetic flux density generated by the magnet in this specific configuration. A higher P_c value means the magnet is more 'slender' (tall relative to its area), resulting in a higher operating point and better resistance to irreversible demagnetization caused by external fields or temperature. A value of 0.42 is relatively low (typical for flat magnets), meaning the operating point is closer to the 'knee' of the curve — caution is advised when operating at temperatures near the maximum limit to avoid strength loss.

Technical 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%

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

Magnet Unit Converter

Force (pull)

lbs

Field Strength

Induction (Gs)

Induction (T)

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The presented product is an exceptionally strong cylinder magnet, manufactured from durable NdFeB material, which, with dimensions of Ø45x20 mm, guarantees optimal power. This specific item is characterized by a tolerance of ±0.1mm and industrial build quality, making it an ideal solution for the most demanding engineers and designers. As a cylindrical magnet with significant force (approx. 60.94 kg), this product is in stock from our European logistics center, ensuring lightning-fast order fulfillment. Moreover, 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 positioning or actuating element. Thanks to the pull force of 597.79 N with a weight of only 238.56 g, this cylindrical magnet is indispensable in electronics and wherever low weight is crucial.

Since our magnets have a very precise dimensions, the recommended way is to glue them into holes with a slightly larger diameter (e.g., 45.1 mm) using 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 suitable for the majority of applications in automation and machine building, where excessive miniaturization with maximum force is not required. If you need even stronger 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.

This model is characterized by dimensions Ø45x20 mm, which, at a weight of 238.56 g, makes it an element with high magnetic energy density. 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 external factors, giving it an aesthetic, silvery shine.

This cylinder is magnetized axially (along the height of 20 mm), which means that the N and S poles are located on the flat, circular surfaces. Such an arrangement is 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 Nd₂Fe₁₄B magnets.

Advantages

In addition to their long-term stability, neodymium magnets provide the following advantages:

They have unchanged lifting capacity, and over more than ten years their performance decreases symbolically – ~1% (in testing),
They retain their magnetic properties even under close interference source,
Thanks to the glossy finish, the plating of nickel, gold-plated, or silver-plated gives an modern appearance,
Neodymium magnets achieve maximum magnetic induction on a their 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 form) at temperatures up to 230°C and above...
Possibility of precise modeling as well as adapting to precise conditions,
Universal use in advanced technology sectors – they are utilized in computer drives, drive modules, medical devices, as well as technologically advanced constructions.
Relatively small size with high pulling force – neodymium magnets offer high power in compact dimensions, which allows their use in small systems

Cons

Disadvantages of neodymium magnets:

They are fragile upon too strong impacts. To avoid cracks, it is worth protecting magnets in special housings. Such protection not only protects the magnet but also increases its resistance to damage
We warn that neodymium magnets can lose their strength at high temperatures. To prevent this, we recommend our specialized [AH] magnets, which work effectively even at 230°C.
Magnets exposed to a humid environment can corrode. Therefore during using outdoors, we recommend using water-impermeable magnets made of rubber, plastic or other material resistant to moisture
We recommend cover - magnetic holder, due to difficulties in producing threads inside the magnet and complicated shapes.
Health risk resulting from small fragments of magnets are risky, in case of ingestion, which is particularly important in the context of child safety. Additionally, tiny parts of these products are able to disrupt the diagnostic process medical in case of swallowing.
High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which increases costs of application in large quantities

Holding force characteristics

Highest magnetic holding force – what it depends on?

Holding force of 60.94 kg is a theoretical maximum value conducted under standard conditions:

using a base made of low-carbon steel, acting as a magnetic yoke
possessing a thickness of minimum 10 mm to avoid saturation
with an ideally smooth contact surface
with direct contact (without impurities)
for force acting at a right angle (in the magnet axis)
in neutral thermal conditions

What influences lifting capacity in practice

During everyday use, the actual holding force depends on several key aspects, presented from crucial:

Space between surfaces – even a fraction of a millimeter of distance (caused e.g. by varnish or unevenness) significantly weakens the pulling force, often by half at just 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 maximum value.
Steel thickness – insufficiently thick steel causes magnetic saturation, causing part of the power to be escaped to the other side.
Metal type – different alloys reacts the same. Alloy additives weaken the attraction effect.
Surface finish – ideal contact is possible only on polished steel. Any scratches and bumps create air cushions, reducing force.
Temperature influence – hot environment reduces pulling force. Too high temperature can permanently demagnetize the magnet.

Lifting capacity testing was carried out on plates with a smooth surface of optimal thickness, under perpendicular forces, in contrast under attempts to slide the magnet the lifting capacity is smaller. Additionally, even a slight gap between the magnet and the plate decreases the load capacity.

Warnings

Do not overheat magnets

Regular neodymium magnets (N-type) undergo demagnetization when the temperature exceeds 80°C. The loss of strength is permanent.

Fire warning

Dust generated during machining of magnets is self-igniting. Do not drill into magnets without proper cooling and knowledge.

Pacemakers

Life threat: Neodymium magnets can deactivate pacemakers and defibrillators. Stay away if you have electronic implants.

Handling rules

Exercise caution. Neodymium magnets act from a long distance and snap with massive power, often faster than you can react.

GPS Danger

GPS units and smartphones are extremely sensitive to magnetic fields. Close proximity with a strong magnet can permanently damage the sensors in your phone.

Magnetic media

Intense magnetic fields can destroy records on payment cards, HDDs, and storage devices. Maintain a gap of min. 10 cm.

Allergic reactions

Certain individuals suffer from a hypersensitivity to Ni, which is the standard coating for NdFeB magnets. Prolonged contact might lead to skin redness. We strongly advise use safety gloves.

Beware of splinters

Beware of splinters. Magnets can explode upon violent connection, ejecting shards into the air. Eye protection is mandatory.

Serious injuries

Protect your hands. Two powerful magnets will join instantly with a force of several hundred kilograms, crushing anything in their path. Exercise extreme caution!

No play value

Strictly keep magnets away from children. Ingestion danger is significant, and the effects of magnets connecting inside the body are tragic.

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

MW 45x20 / N38 - cylindrical magnet

Technical - MW 45x20 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering modeling of the product - technical parameters

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

Table 2: Slippage force (wall) MW 45x20 / N38

Table 3: Wall mounting (sliding) - behavior on slippery surfaces MW 45x20 / N38

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

Table 5: Thermal resistance (stability) - resistance threshold MW 45x20 / N38

Table 6: Magnet-Magnet interaction (attraction) - field range MW 45x20 / N38

Table 7: Protective zones (implants) - warnings MW 45x20 / N38

Table 8: Dynamics (cracking risk) - warning MW 45x20 / N38

Table 9: Anti-corrosion coating durability MW 45x20 / N38

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

Table 11: Submerged application MW 45x20 / N38

1. Shear force

2. Plate thickness effect

3. Power loss vs temp

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

Chemical composition

Ecology and recycling (GPSR)

Force (pull)

Field Strength

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Pros and cons of Nd2Fe14B magnets.

Advantages

Cons

Holding force characteristics

Highest magnetic holding force – what it depends on?

What influences lifting capacity in practice

Warnings

Do not overheat magnets

Fire warning

Pacemakers

Handling rules

GPS Danger

Magnetic media

Allergic reactions

Beware of splinters

Serious injuries

No play value

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

Table 2: Slippage force (wall)
MW 45x20 / N38

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MW 45x20 / N38

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

Table 5: Thermal resistance (stability) - resistance threshold
MW 45x20 / N38

Table 6: Magnet-Magnet interaction (attraction) - field range
MW 45x20 / N38

Table 7: Protective zones (implants) - warnings
MW 45x20 / N38

Table 8: Dynamics (cracking risk) - warning
MW 45x20 / N38

Table 9: Anti-corrosion coating durability
MW 45x20 / N38

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

Table 11: Submerged application
MW 45x20 / N38

Pros and cons of Nd₂Fe₁₄B magnets.