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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

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Lifting power along with structure of a neodymium magnet can be estimated with our modular 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

Physical modeling of the product - technical parameters

Presented data constitute the result of a mathematical simulation. Values rely on models for the class Nd₂Fe₁₄B. Operational performance may deviate from the simulation results. Please consider these data as a supplementary guide for designers.

Table 1: Static force (force vs gap) - interaction chart
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 pounds 60940.0 g / 597.8 N	dangerous!
1 mm	3955 Gs 395.5 mT	56.23 kg / 123.96 pounds 56228.7 g / 551.6 N	dangerous!
2 mm	3786 Gs 378.6 mT	51.51 kg / 113.57 pounds 51512.3 g / 505.3 N	dangerous!
3 mm	3613 Gs 361.3 mT	46.91 kg / 103.42 pounds 46911.0 g / 460.2 N	dangerous!
5 mm	3263 Gs 326.3 mT	38.28 kg / 84.40 pounds 38282.6 g / 375.6 N	dangerous!
10 mm	2442 Gs 244.2 mT	21.43 kg / 47.26 pounds 21434.6 g / 210.3 N	dangerous!
15 mm	1776 Gs 177.6 mT	11.34 kg / 25.00 pounds 11340.0 g / 111.2 N	dangerous!
20 mm	1285 Gs 128.5 mT	5.93 kg / 13.08 pounds 5932.8 g / 58.2 N	strong
30 mm	694 Gs 69.4 mT	1.73 kg / 3.82 pounds 1730.8 g / 17.0 N	low risk
50 mm	249 Gs 24.9 mT	0.22 kg / 0.49 pounds 222.3 g / 2.2 N	low risk

Grip strength decreases sharply with every mm of gap. Keep in mind that every additional insulation layer (e.g., dirt, paint, rust) significantly weakens the grip. Magnetic products operate optimally at the point of direct contact; gap drastically cuts the force. Observe how rapidly the pull force drop, when the magnet does not touch flatly to the steel surface. When designing the mounting, 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 pounds 12188.0 g / 119.6 N
1 mm	Stal (~0.2)	11.25 kg / 24.79 pounds 11246.0 g / 110.3 N
2 mm	Stal (~0.2)	10.30 kg / 22.71 pounds 10302.0 g / 101.1 N
3 mm	Stal (~0.2)	9.38 kg / 20.68 pounds 9382.0 g / 92.0 N
5 mm	Stal (~0.2)	7.66 kg / 16.88 pounds 7656.0 g / 75.1 N
10 mm	Stal (~0.2)	4.29 kg / 9.45 pounds 4286.0 g / 42.0 N
15 mm	Stal (~0.2)	2.27 kg / 5.00 pounds 2268.0 g / 22.2 N
20 mm	Stal (~0.2)	1.19 kg / 2.61 pounds 1186.0 g / 11.6 N
30 mm	Stal (~0.2)	0.35 kg / 0.76 pounds 346.0 g / 3.4 N
50 mm	Stal (~0.2)	0.04 kg / 0.10 pounds 44.0 g / 0.4 N

The table below indicates the approximate force required to start the shifting of the magnet down on a vertical steel plate (assuming typical friction coefficient). This value is a function of the gap size between the magnet and the surface.

Table 3: Vertical assembly (shearing) - 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 pounds 18282.0 g / 179.3 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	12.19 kg / 26.87 pounds 12188.0 g / 119.6 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	6.09 kg / 13.43 pounds 6094.0 g / 59.8 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	30.47 kg / 67.17 pounds 30470.0 g / 298.9 N

When hanging a element on a vertical surface (e.g., a board), it you can count on barely approx. 1/5 of nominal attraction strength. Gravitational force and a weak degree of grip influence the fact that products move down easier than they detach. Planning a hanger? Note that the shear force is significantly lower than the maximum static pull force. On a painted metal, the magnet will slide down under a much lighter load. Using a rubber layer can effectively improve the result.

Table 4: Material efficiency (substrate influence) - power losses
MW 45x20 / N38

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

A thin metal plate is incapable of take in the entire magnetic field, which wastes potential of the holder. If you mount a strong magnet to a thin surface, the magnetism will pass right through and the holding will be smaller. To squeeze full efficiency of this magnet's potential, you need a suitably thick piece of metal. The saturation effect causes that on sheet metal structures (e.g., thin profiles), the product shows lower pull force. We advise picking the steel dimension from these parameters.

Table 5: Thermal stability (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 pounds 60940.0 g / 597.8 N	OK
40 °C	-2.2%	59.60 kg / 131.39 pounds 59599.3 g / 584.7 N	OK
60 °C	-4.4%	58.26 kg / 128.44 pounds 58258.6 g / 571.5 N
80 °C	-6.6%	56.92 kg / 125.48 pounds 56918.0 g / 558.4 N
100 °C	-28.8%	43.39 kg / 95.66 pounds 43389.3 g / 425.6 N

Ordinary NdFeB products irreversibly lose power after exceeding the maximum temperature. Protect against heat – heat can irreversibly destroy this magnet. With every degree above norm, the neodymium's force temporarily lowers. Do not use this product close to ovens higher than its safe range. Ignoring the limit will lead to irreversible degradation of magnetism.

*Technical advisory: Thermal stability depends not only on the material grade, but also on the magnet's shape. Low-profile magnets (pancake types) may lose charge permanently under lower heat stress than long magnets. Red status in the table points to permanent field degradation for this specific geometry.

Table 6: Magnet-Magnet interaction (repulsion) - forces in the system
MW 45x20 / N38

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

Two magnetic products attract each other from a wider radius than a magnet and sheet combination. Such a system of two magnets creates a more powerful interaction and a larger range of performance. Designing a strong closure? Use a pair of magnets instead of one magnet and a steel. Exercise caution that when attracting two neodymiums, the pinch force is huge. The repulsion force is marginally weaker than the attraction, but still significant.
*The magnetic induction for N-N configuration is approximately ~0 Gs in the exact middle of the gap (due to field cancellation).
Attention: Calculations show friction force of a pair of same neodymium magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Protective zones (electronics) - 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
Timepiece	20 Gs (2.0 mT)	14.0 cm
Phone / Smartphone	40 Gs (4.0 mT)	10.5 cm
Car key	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 large risk to IT equipment as well as medical implants. These NdFeB products generate a flux that destroys function of sensitive medical devices. Remember: the unseen radiation penetrates the body and housings. Exceptional care must be taken by people with hearing aids and drug dispensers. Also at risk are: mechanical watches, remotes, speakers, and displays. Do not place the magnet near cards, hard drives, or precise measuring instruments.

Table 8: Impact energy (kinetic energy) - 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 violent impact against metal risks their cracking. Pay attention to connection velocity – a neodymium left loose turns into a projectile. Kinetic force can trigger coating fragments or injury to skin. Hold the magnet firmly during mounting so it doesn't hit with great force against the metal. A contact at a velocity of dozens of km/h almost guarantees destruction of the neodymium. Wear safety glasses when working with large magnets.

Table 9: Corrosion resistance
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 following table defines the conditions under which this product can be safely used. 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 pole surface. Key data for generator designers as well as sensors. The P_c coefficient defines the magnet's operating point.

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%

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

The magnetic field penetrates through water without any losses. 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)

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

2. Plate thickness effect

*Thin metal sheet (e.g. 0.5mm PC case) significantly limits the holding force.

3. Temperature resistance

*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) = 0.54

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

Elemental analysis

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

Measurement Calculator

Pulling force

Force in kg

Newtons (N)

Force in lbs

Magnetic Induction

Gauss (Gs)

Induction (T)

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94.99 ZŁ brutto / pcs

The offered product is an exceptionally strong cylindrical magnet, composed of modern NdFeB material, which, at dimensions of Ø45x20 mm, guarantees optimal power. This specific item is characterized by high dimensional repeatability and industrial build quality, making it a perfect solution for the most demanding engineers and designers. As a magnetic rod with impressive force (approx. 60.94 kg), this product is available off-the-shelf from our European logistics center, ensuring lightning-fast order fulfillment. Furthermore, its triple-layer Ni-Cu-Ni coating secures it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.

This model is perfect for building generators, advanced Hall effect 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 cylindrical magnet is indispensable in electronics 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 long-term durability in industry, specialized industrial adhesives are used, which are safe for nickel and fill the gap, guaranteeing high repeatability of the connection.

Grade N38 is the most frequently chosen standard for industrial neodymium magnets, offering a great economic balance and high resistance to demagnetization. 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.

This model is characterized by dimensions Ø45x20 mm, which, at a weight of 238.56 g, makes it an element with impressive magnetic energy density. The key parameter here is the holding force amounting to approximately 60.94 kg (force ~597.79 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.

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. 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.

Pros as well as cons of neodymium magnets.

Advantages

In addition to their magnetic capacity, neodymium magnets provide the following advantages:

Their strength is durable, and after approximately 10 years it decreases only by ~1% (theoretically),
Neodymium magnets are characterized by exceptionally resistant to demagnetization caused by external magnetic fields,
The use of an shiny coating of noble metals (nickel, gold, silver) causes the element to look better,
Magnets are distinguished by maximum magnetic induction on the working surface,
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...
Thanks to freedom in constructing and the ability to adapt to unusual requirements,
Wide application in electronics industry – they are used in magnetic memories, motor assemblies, diagnostic systems, and modern systems.
Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Weaknesses

Disadvantages of NdFeB magnets:

To avoid cracks under impact, we recommend using special steel housings. Such a solution secures the magnet and simultaneously improves its durability.
When exposed to high temperature, neodymium magnets suffer a drop in force. Often, when the temperature exceeds 80°C, their power decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
Magnets exposed to a humid environment can rust. Therefore when using outdoors, we advise using waterproof magnets made of rubber, plastic or other material resistant to moisture
Limited ability of making nuts in the magnet and complex forms - preferred is casing - mounting mechanism.
Potential hazard related to microscopic parts of magnets can be dangerous, when accidentally swallowed, which is particularly important in the aspect of protecting the youngest. Furthermore, small elements of these magnets can complicate diagnosis medical in case of swallowing.
High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which can limit application in large quantities

Holding force characteristics

Maximum lifting force for a neodymium magnet – what it depends on?

The load parameter shown concerns the peak performance, obtained under optimal environment, namely:

on a plate made of mild steel, optimally conducting the magnetic field
whose thickness is min. 10 mm
with an polished touching surface
under conditions of no distance (metal-to-metal)
during detachment in a direction vertical to the mounting surface
at room temperature

Impact of factors on magnetic holding capacity in practice

Please note that the working load may be lower depending on elements below, starting with the most relevant:

Air gap (betwixt the magnet and the metal), because even a microscopic clearance (e.g. 0.5 mm) results in a drastic drop in force by up to 50% (this also applies to varnish, corrosion or dirt).
Force direction – declared lifting capacity refers to pulling vertically. When applying parallel force, the magnet holds significantly lower power (typically approx. 20-30% of maximum force).
Metal thickness – thin material does not allow full use of the magnet. Part of the magnetic field penetrates through instead of generating force.
Steel grade – ideal substrate is pure iron steel. Hardened steels may generate lower lifting capacity.
Smoothness – ideal contact is possible only on polished steel. Rough texture create air cushions, reducing force.
Thermal factor – hot environment reduces pulling force. Exceeding the limit temperature can permanently damage the magnet.

Lifting capacity testing was conducted on a smooth plate of suitable thickness, under a perpendicular pulling force, in contrast under shearing force the load capacity is reduced by as much as fivefold. In addition, even a small distance between the magnet’s surface and the plate decreases the load capacity.

Warnings

Dust is flammable

Drilling and cutting of NdFeB material carries a risk of fire risk. Neodymium dust oxidizes rapidly with oxygen and is difficult to extinguish.

Danger to the youngest

NdFeB magnets are not intended for children. Accidental ingestion of a few magnets may result in them connecting inside the digestive tract, which poses a severe health hazard and necessitates urgent medical intervention.

Data carriers

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

Finger safety

Watch your fingers. Two powerful magnets will snap together immediately with a force of massive weight, destroying everything in their path. Be careful!

Heat warning

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

Handling guide

Before use, check safety instructions. Uncontrolled attraction can break the magnet or hurt your hand. Think ahead.

Material brittleness

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

Compass and GPS

Navigation devices and smartphones are highly susceptible to magnetism. Direct contact with a strong magnet can decalibrate the sensors in your phone.

ICD Warning

Warning for patients: Powerful magnets disrupt medical devices. Maintain at least 30 cm distance or ask another person to work with the magnets.

Avoid contact if allergic

Certain individuals suffer from a contact allergy to Ni, which is the typical protective layer for neodymium magnets. Extended handling might lead to an allergic reaction. We recommend use protective gloves.

Security! Looking for details? Read our article: Why are neodymium magnets dangerous?

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

Physical modeling of the product - technical parameters

Table 1: Static force (force vs gap) - interaction chart MW 45x20 / N38

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

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces MW 45x20 / N38

Table 4: Material efficiency (substrate influence) - power losses MW 45x20 / N38

Table 5: Thermal stability (material behavior) - thermal limit MW 45x20 / N38

Table 6: Magnet-Magnet interaction (repulsion) - forces in the system MW 45x20 / N38

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

Table 8: Impact energy (kinetic energy) - warning MW 45x20 / N38

Table 9: Corrosion resistance MW 45x20 / N38

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

Table 11: Hydrostatics and buoyancy MW 45x20 / N38

1. Wall mount (shear)

2. Plate thickness effect

3. Temperature resistance

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

Elemental analysis

Ecology and recycling (GPSR)

Pulling force

Magnetic Induction

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Pros as well as cons of neodymium magnets.

Advantages

Weaknesses

Holding force characteristics

Maximum lifting force for a neodymium magnet – what it depends on?

Impact of factors on magnetic holding capacity in practice

Warnings

Dust is flammable

Danger to the youngest

Data carriers

Finger safety

Heat warning

Handling guide

Material brittleness

Compass and GPS

ICD Warning

Avoid contact if allergic

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs gap) - interaction chart
MW 45x20 / N38

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

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MW 45x20 / N38

Table 4: Material efficiency (substrate influence) - power losses
MW 45x20 / N38

Table 5: Thermal stability (material behavior) - thermal limit
MW 45x20 / N38

Table 6: Magnet-Magnet interaction (repulsion) - forces in the system
MW 45x20 / N38

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

Table 8: Impact energy (kinetic energy) - warning
MW 45x20 / N38

Table 9: Corrosion resistance
MW 45x20 / N38

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

Table 11: Hydrostatics and buoyancy
MW 45x20 / N38