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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

view technical data »

84.45 ZŁ with VAT / pcs + price for transport

68.66 ZŁ net + 23% VAT / pcs

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Physical properties - 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

Technical simulation of the magnet - technical parameters

Presented data constitute the outcome of a engineering simulation. Results rely on models for the material Nd₂Fe₁₄B. Operational conditions might slightly differ from theoretical values. Use these data as a supplementary guide when designing systems.

Table 1: Static force (pull 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	safe
50 mm	249 Gs 24.9 mT	0.22 kg / 0.49 LBS 222.3 g / 2.2 N	safe

Grip strength drops drastically with every mm of distance. Keep in mind that even a very thin break (e.g., contamination, paint, dust) noticeably weakens the grip. Magnetic products operate most effectively in perfect adhesion; air break nullifies the force. See how rapidly the load capacity fall, when the magnet does not touch tightly to the steel surface. When designing the mounting, avoid additional spacers.

Table 2: Shear hold (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 calculates the estimated weight limit needed to cause the sliding of the magnet vertically against a vertical steel plate (assuming standard friction). The holding force varies with the gap size 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 element on a upright plane (e.g., a car body), it will only hold only approx. 1/5 of its maximum pull force. Gravitational force and a low friction coefficient mean that products slip faster than they pull off. Want to create a vertical fastening? Remember that the shear force is significantly lower than the maximum static pull force. On a painted metal, the magnet will slip down under a much lighter load. Application of an anti-slip pad can drastically increase the grip.

Table 4: Material efficiency (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 sheet is unable to absorb the full magnetic flux, which squanders power of the holder. If you install a neodymium to a too thin substrate, the field will pass right through and the pull force will drop sharply. To achieve full efficiency of this neodymium's potential, you require a sufficiently solid piece of metal. The saturation effect means that on thin elements (e.g., appliance housings), the holder works worse. We recommend selecting the steel cross-section according to the table below.

Table 5: Thermal resistance (material behavior) - power drop
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 irreversibly lose strength above the temperature limit. Watch out for overheating – excessive heat can irreversibly destroy this product. With increasing heat, the magnet's power briefly drops. Do not use this magnet near heat sources exceeding its working range. Exceeding the critical threshold will lead to irreversible degradation of magnetic properties.

*Important note: Thermal stability is determined by both grade, but also on the magnet's shape. Thin magnets (pancake types) risk losing magnetic properties at lower temperatures compared to rod magnets. The danger warning in the table points to a risk of irreversible loss for this particular item.

Table 6: Two magnets (attraction) - field collision
MW 45x20 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Strength (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 magnetic products attract each other from a much further distance than a magnet and sheet combination. The connection of magnet-to-magnet generates a stronger field and a further horizon of action. Planning to create a strong closure? Use a pair of magnets instead of one magnet and a steel. Be careful that when attracting two neodymiums, the pinch force is massive. The levitation is a bit weaker than the connection force, but still significant.
*Field value between like poles reaches ~0 Gs at the midpoint of the gap (due to field cancellation).
Important: Figures refer to friction force of a pair of same magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Safety (HSE) (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
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

Powerful magnet radiation poses a serious hazard to electronic devices and pacemakers. These neodymiums generate a field that prevents correct functioning of sensitive medical devices. Remember: the unseen radiation acts through matter and housings. Increased vigilance must be taken by people with cochlear implants and insulin pumps. Influence will be felt by: automatic timepieces, car keys, speakers, and displays. Avoid contact with magnetic cards, hard drives, or precise measuring instruments.

Table 8: Dynamics (kinetic energy) - 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

Magnetic elements are delicate – a collision with steel can result in shattering. Watch the impact speed – a neodymium left loose speeds with massive force. Kinetic force can cause material chips or injury to fingers. Always hold the magnet during mounting so it doesn't slam with momentum against the steel surface. A collision at high speed ends with a crack of the neodymium. Use safety goggles when playing with large magnets.

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)

The following table defines the conditions under which this product can be safely used. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Construction data (Flux)
MW 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 when building generators as well as sensors. The P_c coefficient defines the magnet's operating point.

Table 11: Physics of underwater searching
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. Shear force

*Note: On a vertical surface, the magnet holds just ~20% of its nominal pull.

2. Steel thickness impact

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

3. Temperature resistance

*For N38 material, 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

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: 010071-2026

Measurement Calculator

Magnet pull force

Force in kg

Force (N)

Force in lbs

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Gauss (Gs)

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Input your value in a single field to see the conversion for all other units at once.

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The presented product is a very strong cylinder magnet, composed of advanced NdFeB material, which, with dimensions of Ø45x20 mm, guarantees the highest energy density. This specific item boasts a tolerance of ±0.1mm and professional build quality, making it an excellent solution for professional 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 triple-layer Ni-Cu-Ni coating shields it against corrosion in typical operating conditions, guaranteeing an aesthetic appearance and durability for years.

This model is ideal for building electric motors, advanced Hall effect sensors, and efficient filters, where maximum induction on a small surface counts. Thanks to the pull force 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 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 modeling and machine building, where extreme 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 available off-the-shelf 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 most desirable when connecting magnets in stacks (e.g., in filters) or when mounting in sockets at the bottom of a hole. On request, we can also produce versions magnetized diametrically if your project requires it.

Strengths as well as weaknesses of neodymium magnets.

Benefits

Apart from their strong magnetic energy, neodymium magnets have these key benefits:

They retain attractive force for around 10 years – the drop is just ~1% (according to analyses),
Magnets effectively protect themselves against loss of magnetization caused by ambient magnetic noise,
By applying a smooth layer of nickel, the element gains an modern look,
They show high magnetic induction at the operating surface, which affects their effectiveness,
Thanks to resistance to high temperature, they can operate (depending on the form) even at temperatures up to 230°C and higher...
Due to the potential of accurate molding and customization to individualized projects, magnetic components can be created in a wide range of geometric configurations, which expands the range of possible applications,
Universal use in modern technologies – they find application in magnetic memories, drive modules, advanced medical instruments, as well as complex engineering applications.
Thanks to their power density, small magnets offer high operating force, with minimal size,

Weaknesses

Drawbacks and weaknesses of neodymium magnets: tips and applications.

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 protects the magnet but also increases its resistance to damage
Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of power (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 extremely resistant to heat
When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which prevent oxidation as well as corrosion.
Due to limitations in creating nuts and complex shapes in magnets, we recommend using casing - magnetic holder.
Possible danger related to microscopic parts of magnets are risky, when accidentally swallowed, which becomes key in the context of child health protection. Additionally, small elements of these devices are able to disrupt the diagnostic process medical when they are in the body.
High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which can limit application in large quantities

Holding force characteristics

Highest magnetic holding force – what it depends on?

Breakaway force is the result of a measurement for ideal contact conditions, assuming:

with the use of a sheet made of low-carbon steel, ensuring full magnetic saturation
with a cross-section of at least 10 mm
characterized by lack of roughness
under conditions of gap-free contact (metal-to-metal)
under axial force vector (90-degree angle)
in temp. approx. 20°C

Practical aspects of lifting capacity – factors

Bear in mind that the application force may be lower influenced by the following factors, in order of importance:

Distance – the presence of any layer (paint, dirt, air) interrupts the magnetic circuit, which reduces power rapidly (even by 50% at 0.5 mm).
Pull-off angle – note that the magnet has greatest strength perpendicularly. Under shear forces, the capacity drops significantly, often to levels of 20-30% of the maximum value.
Wall thickness – the thinner the sheet, the weaker the hold. Magnetic flux passes through the material instead of generating force.
Metal type – not every steel attracts identically. Alloy additives weaken the attraction effect.
Smoothness – ideal contact is possible only on polished steel. Rough texture create air cushions, weakening the magnet.
Temperature – heating the magnet causes a temporary drop of force. It is worth remembering the maximum operating temperature for a given model.

Holding force was checked on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, however under attempts to slide the magnet the holding force is lower. Additionally, even a slight gap between the magnet and the plate lowers the lifting capacity.

H&S for magnets

Handling rules

Handle magnets with awareness. Their powerful strength can shock even experienced users. Plan your moves and respect their force.

Crushing risk

Danger of trauma: The pulling power is so great that it can cause hematomas, pinching, and broken bones. Use thick gloves.

GPS Danger

A powerful magnetic field interferes with the operation of magnetometers in smartphones and GPS navigation. Do not bring magnets close to a device to prevent damaging the sensors.

Implant safety

Medical warning: Strong magnets can deactivate pacemakers and defibrillators. Stay away if you have electronic implants.

This is not a toy

Absolutely store magnets out of reach of children. Risk of swallowing is significant, and the effects of magnets connecting inside the body are life-threatening.

Allergic reactions

Allergy Notice: The nickel-copper-nickel coating consists of nickel. If an allergic reaction occurs, immediately stop handling magnets and use protective gear.

Magnets are brittle

Neodymium magnets are ceramic materials, meaning they are fragile like glass. Impact of two magnets will cause them shattering into shards.

Protect data

Equipment safety: Strong magnets can ruin data carriers and sensitive devices (heart implants, medical aids, timepieces).

Thermal limits

Monitor thermal conditions. Heating the magnet to high heat will ruin its properties and strength.

Dust explosion hazard

Fire warning: Neodymium dust is explosive. Avoid machining magnets without safety gear as this may cause fire.

Attention! Need more info? Check our post: Are neodymium magnets dangerous?

MW 45x20 / N38 - cylindrical magnet

Physical properties - MW 45x20 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical simulation of the magnet - technical parameters

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

Table 2: Shear hold (wall) MW 45x20 / N38

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

Table 4: Material efficiency (saturation) - sheet metal selection MW 45x20 / N38

Table 5: Thermal resistance (material behavior) - power drop MW 45x20 / N38

Table 6: Two magnets (attraction) - field collision MW 45x20 / N38

Table 7: Safety (HSE) (electronics) - warnings MW 45x20 / N38

Table 8: Dynamics (kinetic energy) - collision effects MW 45x20 / N38

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

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

Table 11: Physics of underwater searching MW 45x20 / N38

1. Shear force

2. Steel thickness impact

3. Temperature resistance

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

Material specification

Sustainability

Magnet pull force

Field Strength

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Strengths as well as weaknesses of neodymium magnets.

Benefits

Weaknesses

Holding force characteristics

Highest magnetic holding force – what it depends on?

Practical aspects of lifting capacity – factors

H&S for magnets

Handling rules

Crushing risk

GPS Danger

Implant safety

This is not a toy

Allergic reactions

Magnets are brittle

Protect data

Thermal limits

Dust explosion hazard

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

Table 2: Shear hold (wall)
MW 45x20 / N38

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

Table 4: Material efficiency (saturation) - sheet metal selection
MW 45x20 / N38

Table 5: Thermal resistance (material behavior) - power drop
MW 45x20 / N38

Table 6: Two magnets (attraction) - field collision
MW 45x20 / N38

Table 7: Safety (HSE) (electronics) - warnings
MW 45x20 / N38

Table 8: Dynamics (kinetic energy) - collision effects
MW 45x20 / N38

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

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

Table 11: Physics of underwater searching
MW 45x20 / N38