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MW 40x10 / N38 - cylindrical magnet

Name: Dhit sp. z o.o.
Address: Kościuszki 6A, Ożarów Mazowiecki, mazowieckie, 05-850, PL
Telephone: +48 22 499 98 98
Price range: 1-6500 PLN
Rating: 5

cylindrical magnet

Catalog no 010066

GTIN/EAN: 5906301810650

Diameter Ø

40 mm [±0,1 mm]

Height

10 mm [±0,1 mm]

Weight

94.25 g

Magnetization Direction

↑ axial

Load capacity

27.73 kg / 271.99 N

Magnetic Induction

277.22 mT / 2772 Gs

Coating

[NiCuNi] Nickel

see technical specifications »

36.57 ZŁ with VAT / pcs + price for transport

29.73 ZŁ net + 23% VAT / pcs

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Technical of the product - MW 40x10 / N38 - cylindrical magnet

Specification / characteristics - MW 40x10 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010066
GTIN/EAN	5906301810650
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	40 mm [±0,1 mm]
Height	10 mm [±0,1 mm]
Weight	94.25 g
Magnetization Direction	↑ axial
Load capacity ~ ?	27.73 kg / 271.99 N
Magnetic Induction ~ ?	277.22 mT / 2772 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 40x10 / 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 analysis of the assembly - report

These data represent the result of a engineering calculation. Values were calculated on models for the material Nd₂Fe₁₄B. Actual performance may deviate from the simulation results. Use these data as a preliminary roadmap during assembly planning.

Table 1: Static force (force vs distance) - power drop
MW 40x10 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	2772 Gs 277.2 mT	27.73 kg / 61.13 lbs 27730.0 g / 272.0 N	critical level
1 mm	2678 Gs 267.8 mT	25.89 kg / 57.08 lbs 25889.6 g / 254.0 N	critical level
2 mm	2573 Gs 257.3 mT	23.89 kg / 52.68 lbs 23893.3 g / 234.4 N	critical level
3 mm	2459 Gs 245.9 mT	21.83 kg / 48.12 lbs 21827.6 g / 214.1 N	critical level
5 mm	2216 Gs 221.6 mT	17.73 kg / 39.08 lbs 17728.1 g / 173.9 N	critical level
10 mm	1611 Gs 161.1 mT	9.37 kg / 20.66 lbs 9371.0 g / 91.9 N	strong
15 mm	1121 Gs 112.1 mT	4.54 kg / 10.01 lbs 4538.6 g / 44.5 N	strong
20 mm	775 Gs 77.5 mT	2.17 kg / 4.77 lbs 2165.8 g / 21.2 N	strong
30 mm	387 Gs 38.7 mT	0.54 kg / 1.19 lbs 539.8 g / 5.3 N	safe
50 mm	125 Gs 12.5 mT	0.06 kg / 0.12 lbs 56.6 g / 0.6 N	safe

Magnetic force drops drastically with every mm of distance. Keep in mind that every additional insulation layer (e.g., contamination, varnish, dust) significantly weakens the grip. Magnets hold most effectively at the point of direct contact; distance weakens the force. Observe how flashily the pull force plummet, when the magnet does not touch tightly to the metal substrate. When designing the mounting, eliminate redundant distances.

Table 2: Sliding hold (vertical surface)
MW 40x10 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	5.55 kg / 12.23 lbs 5546.0 g / 54.4 N
1 mm	Stal (~0.2)	5.18 kg / 11.42 lbs 5178.0 g / 50.8 N
2 mm	Stal (~0.2)	4.78 kg / 10.53 lbs 4778.0 g / 46.9 N
3 mm	Stal (~0.2)	4.37 kg / 9.63 lbs 4366.0 g / 42.8 N
5 mm	Stal (~0.2)	3.55 kg / 7.82 lbs 3546.0 g / 34.8 N
10 mm	Stal (~0.2)	1.87 kg / 4.13 lbs 1874.0 g / 18.4 N
15 mm	Stal (~0.2)	0.91 kg / 2.00 lbs 908.0 g / 8.9 N
20 mm	Stal (~0.2)	0.43 kg / 0.96 lbs 434.0 g / 4.3 N
30 mm	Stal (~0.2)	0.11 kg / 0.24 lbs 108.0 g / 1.1 N
50 mm	Stal (~0.2)	0.01 kg / 0.03 lbs 12.0 g / 0.1 N

The following data presents the estimated shear load sufficient to start the shifting of the magnet vertically on a vertical steel wall (considering typical friction coefficient). This parameter varies with the air gap between the magnet and the metal.

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MW 40x10 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	8.32 kg / 18.34 lbs 8319.0 g / 81.6 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	5.55 kg / 12.23 lbs 5546.0 g / 54.4 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	2.77 kg / 6.11 lbs 2773.0 g / 27.2 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	13.87 kg / 30.57 lbs 13865.0 g / 136.0 N

When mounting a magnet on a vertical wall (e.g., a car body), it will only hold only approx. 20%-30% of its maximum pull force. Gravitational force and a low friction coefficient mean that magnets slide down faster than they pop off the substrate. Want to create a hanger? Consider that the sliding force is much weaker than the perpendicular breakaway force. On a slippery surface, the holder will slide down under a much lighter weight. Utilizing a rubberized coating can drastically raise the stability.

Table 4: Steel thickness (saturation) - sheet metal selection
MW 40x10 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	5%	1.39 kg / 3.06 lbs 1386.5 g / 13.6 N
1 mm	13%	3.47 kg / 7.64 lbs 3466.3 g / 34.0 N
2 mm	25%	6.93 kg / 15.28 lbs 6932.5 g / 68.0 N
3 mm	38%	10.40 kg / 22.93 lbs 10398.8 g / 102.0 N
5 mm	63%	17.33 kg / 38.21 lbs 17331.3 g / 170.0 N
10 mm	100%	27.73 kg / 61.13 lbs 27730.0 g / 272.0 N
11 mm	100%	27.73 kg / 61.13 lbs 27730.0 g / 272.0 N
12 mm	100%	27.73 kg / 61.13 lbs 27730.0 g / 272.0 N

A thin metal plate is unable to take in the full magnetic flux, which wastes potential of the magnet. If you install a neodymium to a thin surface, the flux will pass right through and the attraction force will be weaker. To squeeze 100% of this neodymium's power, you require a sufficiently solid backing of metal. The saturation effect causes that on delicate walls (e.g., car bodies), the product shows lower pull force. We advise picking the steel cross-section from these parameters.

Table 5: Working in heat (stability) - power drop
MW 40x10 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	27.73 kg / 61.13 lbs 27730.0 g / 272.0 N	OK
40 °C	-2.2%	27.12 kg / 59.79 lbs 27119.9 g / 266.0 N	OK
60 °C	-4.4%	26.51 kg / 58.44 lbs 26509.9 g / 260.1 N
80 °C	-6.6%	25.90 kg / 57.10 lbs 25899.8 g / 254.1 N
100 °C	-28.8%	19.74 kg / 43.53 lbs 19743.8 g / 193.7 N

Classic neodymiums irreversibly lose power above the temperature limit. Avoid high temperatures – excessive heat can permanently destroy this magnet. As the temperature rises, the neodymium's capacity briefly lowers. Avoid using this magnet close to heaters exceeding its operating temperature limit. Exceeding the critical threshold will result in permanent loss of magnetic properties.

*Important note: Temperature resistance is determined by both grade, but also on the magnet's shape. Thin magnets (low permeance coefficient) risk losing magnetic properties at lower temperatures compared to rod magnets. Red status in the table signals permanent field degradation for this particular item.

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MW 40x10 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Strength (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	59.52 kg / 131.22 lbs 4 382 Gs	8.93 kg / 19.68 lbs 8928 g / 87.6 N	N/A
1 mm	57.61 kg / 127.01 lbs 5 454 Gs	8.64 kg / 19.05 lbs 8642 g / 84.8 N	51.85 kg / 114.31 lbs ~0 Gs
2 mm	55.57 kg / 122.52 lbs 5 357 Gs	8.34 kg / 18.38 lbs 8336 g / 81.8 N	50.01 kg / 110.26 lbs ~0 Gs
3 mm	53.46 kg / 117.85 lbs 5 254 Gs	8.02 kg / 17.68 lbs 8019 g / 78.7 N	48.11 kg / 106.07 lbs ~0 Gs
5 mm	49.08 kg / 108.20 lbs 5 034 Gs	7.36 kg / 16.23 lbs 7362 g / 72.2 N	44.17 kg / 97.38 lbs ~0 Gs
10 mm	38.05 kg / 83.89 lbs 4 433 Gs	5.71 kg / 12.58 lbs 5708 g / 56.0 N	34.25 kg / 75.50 lbs ~0 Gs
20 mm	20.11 kg / 44.35 lbs 3 223 Gs	3.02 kg / 6.65 lbs 3017 g / 29.6 N	18.10 kg / 39.91 lbs ~0 Gs
50 mm	2.27 kg / 5.01 lbs 1 083 Gs	0.34 kg / 0.75 lbs 341 g / 3.3 N	2.05 kg / 4.51 lbs ~0 Gs
60 mm	1.16 kg / 2.55 lbs 773 Gs	0.17 kg / 0.38 lbs 174 g / 1.7 N	1.04 kg / 2.30 lbs ~0 Gs
70 mm	0.62 kg / 1.36 lbs 565 Gs	0.09 kg / 0.20 lbs 93 g / 0.9 N	0.56 kg / 1.23 lbs ~0 Gs
80 mm	0.35 kg / 0.76 lbs 422 Gs	0.05 kg / 0.11 lbs 52 g / 0.5 N	0.31 kg / 0.69 lbs ~0 Gs
90 mm	0.20 kg / 0.44 lbs 322 Gs	0.03 kg / 0.07 lbs 30 g / 0.3 N	0.18 kg / 0.40 lbs ~0 Gs
100 mm	0.12 kg / 0.27 lbs 251 Gs	0.02 kg / 0.04 lbs 18 g / 0.2 N	0.11 kg / 0.24 lbs ~0 Gs

Two magnetic products attract each other from a wider radius than a neodymium and metal setup. The setup of magnet-to-magnet produces a massive flux and a larger range of performance. Designing a powerful holder? Utilize two neodymiums instead of a neodymium and a striker plate. Be careful that when attracting two neodymiums, the collision energy is massive. The levitation is a bit weaker than the connection force, but still significant.
*Field value for N-N configuration reaches ~0 Gs at the midpoint of the gap (caused by magnetic field nullification).
Note: Results apply to friction force of dual same magnets (friction ~0.15 for Ni-Ni layer).

Table 7: Safety (HSE) (implants) - warnings
MW 40x10 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	16.5 cm
Hearing aid	10 Gs (1.0 mT)	13.0 cm
Mechanical watch	20 Gs (2.0 mT)	10.5 cm
Mobile device	40 Gs (4.0 mT)	8.0 cm
Remote	50 Gs (5.0 mT)	7.5 cm
Payment card	400 Gs (40.0 mT)	3.0 cm
HDD hard drive	600 Gs (60.0 mT)	2.5 cm

A strong magnetic field is a real danger to electronic devices and medical implants. These magnets generate a field that destroys function of digital equipment. Be aware: the unseen radiation acts through matter and plastic. Exceptional care must be exercised by people with hearing aids and drug dispensers. Influence will be felt by: automatic timepieces, car keys, speakers, and displays. Avoid contact with magnetic cards, HDD media, or sensitive navigation tools.

Table 8: Collisions (cracking risk) - collision effects
MW 40x10 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	20.63 km/h (5.73 m/s)	1.55 J
30 mm	30.32 km/h (8.42 m/s)	3.34 J
50 mm	38.73 km/h (10.76 m/s)	5.45 J
100 mm	54.71 km/h (15.20 m/s)	10.88 J

Magnetic elements are very brittle – a collision with steel risks their cracking. Control the attraction moment – a neodymium left loose becomes dangerous. Kinetic force can trigger coating fragments or injury to fingers. Always hold the magnet during mounting so it doesn't hit with great force against the steel surface. A contact at a velocity of dozens of km/h ends with a crack of the magnet. Wear safety glasses when playing with large magnets.

Table 9: Surface protection spec
MW 40x10 / 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: Construction data (Flux)
MW 40x10 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	38 700 Mx	387.0 µWb
P_c Coefficient	0.35	Low (Flat)

Total magnetic flux passing through the pole surface. Essential parameter for generator designers as well as sensors. P_c value determines the magnet's operating point.

Table 11: Underwater work (magnet fishing)
MW 40x10 / N38

Environment	Effective steel pull	Effect
Air (land)	27.73 kg	Standard
Water (riverbed)	31.75 kg (+4.02 kg buoyancy gain)	+14.5%

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

Contrary to myths, water does not block the magnetic field. However, remember the water resistance when pulling the rope quickly.

1. Vertical hold

*Note: On a vertical wall, the magnet holds only ~20% of its perpendicular strength.

2. Steel saturation

*Thin steel (e.g. 0.5mm PC case) severely limits the holding force.

3. Thermal stability

*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) = 0.35

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

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%

Environmental data

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: 010066-2026

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MW 20x18 / N38 - cylindrical magnet

23.54 ZŁ brutto / pcs

The offered product is an exceptionally strong cylindrical magnet, composed of durable NdFeB material, which, at dimensions of Ø40x10 mm, guarantees maximum efficiency. This specific item features an accuracy of ±0.1mm and professional build quality, making it an excellent solution for the most demanding engineers and designers. As a magnetic rod with impressive force (approx. 27.73 kg), this product is in stock from our warehouse in Poland, ensuring lightning-fast order fulfillment. Furthermore, its triple-layer Ni-Cu-Ni coating shields it against corrosion in typical operating conditions, ensuring an aesthetic appearance and durability for years.

It successfully proves itself in DIY projects, advanced robotics, and broadly understood industry, serving as a positioning or actuating element. Thanks to the pull force of 271.99 N with a weight of only 94.25 g, this cylindrical magnet is indispensable in miniature devices and wherever low weight is crucial.

Due to the delicate structure of the ceramic sinter, we absolutely advise against force-fitting (so-called press-fit), as this risks chipping the coating of this professional component. To ensure long-term durability in automation, specialized industrial adhesives are used, which are safe for nickel and fill the gap, guaranteeing durability of the connection.

Magnets NdFeB grade N38 are suitable for 90% of applications in modeling and machine building, where excessive miniaturization with maximum force is not required. If you need even stronger magnets in the same volume (Ø40x10), 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 Ø40x10 mm, which, at a weight of 94.25 g, makes it an element with impressive magnetic energy density. The key parameter here is the holding force amounting to approximately 27.73 kg (force ~271.99 N), which, with such defined dimensions, proves the high power of the NdFeB material. The product has a [NiCuNi] coating, which protects the surface against external factors, giving it an aesthetic, silvery shine.

This rod magnet is magnetized axially (along the height of 10 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 through the diameter if your project requires it.

Pros as well as cons of Nd₂Fe₁₄B magnets.

Benefits

Besides their high retention, neodymium magnets are valued for these benefits:

They retain attractive force for around ten years – the loss is just ~1% (based on simulations),
Neodymium magnets are characterized by highly resistant to loss of magnetic properties caused by external field sources,
A magnet with a smooth silver surface looks better,
Magnetic induction on the working layer of the magnet is strong,
Thanks to resistance to high temperature, they are capable of working (depending on the form) even at temperatures up to 230°C and higher...
Thanks to versatility in shaping and the capacity to modify to specific needs,
Universal use in advanced technology sectors – they are used in data components, motor assemblies, diagnostic systems, also technologically advanced constructions.
Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in tiny dimensions, which allows their use in compact constructions

Limitations

Drawbacks and weaknesses of neodymium magnets: application proposals

They are fragile upon too strong impacts. To avoid cracks, it is worth protecting magnets using a steel holder. Such protection not only shields the magnet but also increases its resistance to damage
Neodymium magnets lose their strength under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
When exposed to humidity, magnets start to rust. To use them in conditions outside, it is recommended to use protective magnets, such as those in rubber or plastics, which secure oxidation as well as corrosion.
Due to limitations in realizing nuts and complex forms in magnets, we recommend using cover - magnetic mount.
Health risk related to microscopic parts of magnets pose a threat, if swallowed, which is particularly important in the aspect of protecting the youngest. Furthermore, small elements of these products can disrupt the diagnostic process medical when they are in the body.
With mass production the cost of neodymium magnets is a challenge,

Pull force analysis

Best holding force of the magnet in ideal parameters – what contributes to it?

Breakaway force is the result of a measurement for the most favorable conditions, including:

with the use of a sheet made of low-carbon steel, guaranteeing full magnetic saturation
with a thickness no less than 10 mm
with an polished contact surface
without any clearance between the magnet and steel
under vertical force direction (90-degree angle)
at room temperature

Lifting capacity in real conditions – factors

Bear in mind that the application force will differ depending on the following factors, starting with the most relevant:

Gap (betwixt the magnet and the plate), since even a tiny clearance (e.g. 0.5 mm) leads to a drastic drop in force by up to 50% (this also applies to paint, rust or debris).
Force direction – note that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the nominal value.
Element thickness – for full efficiency, the steel must be sufficiently thick. Thin sheet restricts the lifting capacity (the magnet "punches through" it).
Chemical composition of the base – low-carbon steel gives the best results. Alloy steels lower magnetic permeability and holding force.
Smoothness – ideal contact is obtained only on smooth steel. Rough texture reduce the real contact area, weakening the magnet.
Temperature influence – hot environment weakens magnetic field. Too high temperature can permanently demagnetize the magnet.

Lifting capacity testing was performed on plates with a smooth surface of suitable thickness, under perpendicular forces, however under parallel forces the holding force is lower. In addition, even a minimal clearance between the magnet and the plate decreases the holding force.

Safe handling of neodymium magnets

No play value

Absolutely keep magnets out of reach of children. Ingestion danger is significant, and the consequences of magnets connecting inside the body are tragic.

Handling guide

Before use, check safety instructions. Sudden snapping can break the magnet or injure your hand. Think ahead.

Heat warning

Keep cool. NdFeB magnets are sensitive to heat. If you need resistance above 80°C, look for HT versions (H, SH, UH).

Hand protection

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

Keep away from computers

Very strong magnetic fields can destroy records on credit cards, hard drives, and other magnetic media. Stay away of min. 10 cm.

Magnet fragility

Despite metallic appearance, the material is delicate and not impact-resistant. Do not hit, as the magnet may crumble into hazardous fragments.

GPS and phone interference

Remember: neodymium magnets produce a field that confuses sensitive sensors. Keep a separation from your phone, device, and GPS.

Skin irritation risks

Studies show that nickel (standard magnet coating) is a potent allergen. For allergy sufferers, avoid direct skin contact or opt for encased magnets.

Flammability

Dust generated during machining of magnets is self-igniting. Do not drill into magnets unless you are an expert.

Danger to pacemakers

For implant holders: Powerful magnets disrupt electronics. Maintain at least 30 cm distance or request help to work with the magnets.

Danger! Details about hazards in the article: Magnet Safety Guide.

MW 40x10 / N38 - cylindrical magnet

Technical of the product - MW 40x10 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering analysis of the assembly - report

Table 1: Static force (force vs distance) - power drop MW 40x10 / N38

Table 2: Sliding hold (vertical surface) MW 40x10 / N38

Table 3: Wall mounting (sliding) - behavior on slippery surfaces MW 40x10 / N38

Table 4: Steel thickness (saturation) - sheet metal selection MW 40x10 / N38

Table 5: Working in heat (stability) - power drop MW 40x10 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system MW 40x10 / N38

Table 7: Safety (HSE) (implants) - warnings MW 40x10 / N38

Table 8: Collisions (cracking risk) - collision effects MW 40x10 / N38

Table 9: Surface protection spec MW 40x10 / N38

Table 10: Construction data (Flux) MW 40x10 / N38

Table 11: Underwater work (magnet fishing) MW 40x10 / N38

1. Vertical hold

2. Steel saturation

3. Thermal stability

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

Elemental analysis

Environmental data

Force (pull)

Field Strength

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MW 20x18 / N38 - cylindrical magnet

Pros as well as cons of Nd2Fe14B magnets.

Benefits

Limitations

Pull force analysis

Best holding force of the magnet in ideal parameters – what contributes to it?

Lifting capacity in real conditions – factors

Safe handling of neodymium magnets

No play value

Handling guide

Heat warning

Hand protection

Keep away from computers

Magnet fragility

GPS and phone interference

Skin irritation risks

Flammability

Danger to pacemakers

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs distance) - power drop
MW 40x10 / N38

Table 2: Sliding hold (vertical surface)
MW 40x10 / N38

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MW 40x10 / N38

Table 4: Steel thickness (saturation) - sheet metal selection
MW 40x10 / N38

Table 5: Working in heat (stability) - power drop
MW 40x10 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MW 40x10 / N38

Table 7: Safety (HSE) (implants) - warnings
MW 40x10 / N38

Table 8: Collisions (cracking risk) - collision effects
MW 40x10 / N38

Table 9: Surface protection spec
MW 40x10 / N38

Table 10: Construction data (Flux)
MW 40x10 / N38

Table 11: Underwater work (magnet fishing)
MW 40x10 / N38

Pros as well as cons of Nd₂Fe₁₄B magnets.