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MW 40x30 / 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 010068

GTIN/EAN: 5906301810674

5.00

Diameter Ø

40 mm [±0,1 mm]

Height

30 mm [±0,1 mm]

Weight

282.74 g

Magnetization Direction

→ diametrical

Load capacity

54.73 kg / 536.88 N

Magnetic Induction

515.71 mT / 5157 Gs

Coating

[NiCuNi] Nickel

technical parameters »

104.80 ZŁ with VAT / pcs + price for transport

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Physical properties - MW 40x30 / N38 - cylindrical magnet

Specification / characteristics - MW 40x30 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010068
GTIN/EAN	5906301810674
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	30 mm [±0,1 mm]
Weight	282.74 g
Magnetization Direction	→ diametrical
Load capacity ~ ?	54.73 kg / 536.88 N
Magnetic Induction ~ ?	515.71 mT / 5157 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 40x30 / 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 assembly - report

Presented data represent the outcome of a engineering calculation. Values rely on algorithms for the material Nd₂Fe₁₄B. Actual parameters might slightly differ. Please consider these calculations as a preliminary roadmap during assembly planning.

Table 1: Static pull force (pull vs distance) - power drop
MW 40x30 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	5156 Gs 515.6 mT	54.73 kg / 120.66 lbs 54730.0 g / 536.9 N	critical level
1 mm	4900 Gs 490.0 mT	49.43 kg / 108.98 lbs 49432.0 g / 484.9 N	critical level
2 mm	4641 Gs 464.1 mT	44.33 kg / 97.74 lbs 44334.0 g / 434.9 N	critical level
3 mm	4383 Gs 438.3 mT	39.54 kg / 87.17 lbs 39538.7 g / 387.9 N	critical level
5 mm	3879 Gs 387.9 mT	30.98 kg / 68.30 lbs 30981.5 g / 303.9 N	critical level
10 mm	2773 Gs 277.3 mT	15.83 kg / 34.89 lbs 15826.7 g / 155.3 N	critical level
15 mm	1946 Gs 194.6 mT	7.79 kg / 17.18 lbs 7792.9 g / 76.4 N	medium risk
20 mm	1372 Gs 137.2 mT	3.88 kg / 8.55 lbs 3877.9 g / 38.0 N	medium risk
30 mm	723 Gs 72.3 mT	1.08 kg / 2.37 lbs 1076.5 g / 10.6 N	safe
50 mm	258 Gs 25.8 mT	0.14 kg / 0.30 lbs 137.4 g / 1.3 N	safe

Magnetic force weakens significantly with every mm of distance. Keep in mind that even the smallest gap (e.g., contamination, paint, dust) strongly reduces the pull force. Neodymiums work most effectively at the point of direct contact; gap drastically cuts the power. See how quickly the load capacity plummet, when the magnet does not adhere flatly to the steel surface. When planning the arrangement, discard additional spacers.

Table 2: Sliding load (vertical surface)
MW 40x30 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	10.95 kg / 24.13 lbs 10946.0 g / 107.4 N
1 mm	Stal (~0.2)	9.89 kg / 21.79 lbs 9886.0 g / 97.0 N
2 mm	Stal (~0.2)	8.87 kg / 19.55 lbs 8866.0 g / 87.0 N
3 mm	Stal (~0.2)	7.91 kg / 17.43 lbs 7908.0 g / 77.6 N
5 mm	Stal (~0.2)	6.20 kg / 13.66 lbs 6196.0 g / 60.8 N
10 mm	Stal (~0.2)	3.17 kg / 6.98 lbs 3166.0 g / 31.1 N
15 mm	Stal (~0.2)	1.56 kg / 3.43 lbs 1558.0 g / 15.3 N
20 mm	Stal (~0.2)	0.78 kg / 1.71 lbs 776.0 g / 7.6 N
30 mm	Stal (~0.2)	0.22 kg / 0.48 lbs 216.0 g / 2.1 N
50 mm	Stal (~0.2)	0.03 kg / 0.06 lbs 28.0 g / 0.3 N

The following data presents the theoretical holding capacity needed to initiate the sliding of the magnet vertically along a upright metal surface (considering standard friction). This value varies with the gap size between the magnet and the metal.

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 40x30 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	16.42 kg / 36.20 lbs 16419.0 g / 161.1 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	10.95 kg / 24.13 lbs 10946.0 g / 107.4 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	5.47 kg / 12.07 lbs 5473.0 g / 53.7 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	27.37 kg / 60.33 lbs 27365.0 g / 268.5 N

When placing a holder on a vertical plane (e.g., a fridge), it will only hold only approx. 1/5 of nominal attraction strength. Gravity as well as a low friction coefficient influence the fact that magnets slip faster than they pull off. Planning a vertical fastening? Remember that the sliding force is significantly lower than the maximum static pull force. On a smooth steel, the element will give way down under a significantly smaller cargo. Using a rubber pad can effectively increase the grip.

Table 4: Steel thickness (substrate influence) - sheet metal selection
MW 40x30 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	3%	1.82 kg / 4.02 lbs 1824.3 g / 17.9 N
1 mm	8%	4.56 kg / 10.05 lbs 4560.8 g / 44.7 N
2 mm	17%	9.12 kg / 20.11 lbs 9121.7 g / 89.5 N
3 mm	25%	13.68 kg / 30.16 lbs 13682.5 g / 134.2 N
5 mm	42%	22.80 kg / 50.27 lbs 22804.2 g / 223.7 N
10 mm	83%	45.61 kg / 100.55 lbs 45608.3 g / 447.4 N
11 mm	92%	50.17 kg / 110.60 lbs 50169.2 g / 492.2 N
12 mm	100%	54.73 kg / 120.66 lbs 54730.0 g / 536.9 N

A thin sheet is incapable of take in the entire magnetic field, which squanders power of the magnet. If you mount a strong magnet to a thin surface, the flux will penetrate right through and the holding will be smaller. To utilize the maximum of this neodymium's power, you need a suitably thick piece of steel. The saturation phenomenon causes that on sheet metal structures (e.g., car bodies), the product works worse. We suggest choosing the steel dimension from these parameters.

Table 5: Working in heat (stability) - resistance threshold
MW 40x30 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	54.73 kg / 120.66 lbs 54730.0 g / 536.9 N	OK
40 °C	-2.2%	53.53 kg / 118.00 lbs 53525.9 g / 525.1 N	OK
60 °C	-4.4%	52.32 kg / 115.35 lbs 52321.9 g / 513.3 N	OK
80 °C	-6.6%	51.12 kg / 112.70 lbs 51117.8 g / 501.5 N
100 °C	-28.8%	38.97 kg / 85.91 lbs 38967.8 g / 382.3 N

Standard neodymium magnets irreversibly lose power past the thermal threshold. Protect against heat – excessive heat can permanently demagnetize this product. With every degree above norm, the neodymium's power momentarily lowers. Avoid using this magnet in hot environments higher than its safe range. Ignoring the limit will lead to destruction of magnetic properties.

*Engineering note: Thermal stability is determined by both grade, as well as the dimension ratios. Low-profile magnets (low permeance coefficient) may lose charge permanently sooner than taller cylinders. The danger warning in the table points to permanent field degradation for this particular item.

Table 6: Magnet-Magnet interaction (repulsion) - field range
MW 40x30 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Sliding Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	205.97 kg / 454.08 lbs 5 879 Gs	30.89 kg / 68.11 lbs 30895 g / 303.1 N	N/A
1 mm	195.99 kg / 432.09 lbs 10 060 Gs	29.40 kg / 64.81 lbs 29399 g / 288.4 N	176.39 kg / 388.88 lbs ~0 Gs
2 mm	186.03 kg / 410.12 lbs 9 800 Gs	27.90 kg / 61.52 lbs 27904 g / 273.7 N	167.42 kg / 369.11 lbs ~0 Gs
3 mm	176.30 kg / 388.68 lbs 9 541 Gs	26.45 kg / 58.30 lbs 26445 g / 259.4 N	158.67 kg / 349.81 lbs ~0 Gs
5 mm	157.67 kg / 347.60 lbs 9 023 Gs	23.65 kg / 52.14 lbs 23650 g / 232.0 N	141.90 kg / 312.84 lbs ~0 Gs
10 mm	116.59 kg / 257.04 lbs 7 759 Gs	17.49 kg / 38.56 lbs 17489 g / 171.6 N	104.93 kg / 231.34 lbs ~0 Gs
20 mm	59.56 kg / 131.31 lbs 5 545 Gs	8.93 kg / 19.70 lbs 8934 g / 87.6 N	53.60 kg / 118.18 lbs ~0 Gs
50 mm	7.52 kg / 16.58 lbs 1 971 Gs	1.13 kg / 2.49 lbs 1128 g / 11.1 N	6.77 kg / 14.92 lbs ~0 Gs
60 mm	4.05 kg / 8.93 lbs 1 446 Gs	0.61 kg / 1.34 lbs 608 g / 6.0 N	3.65 kg / 8.04 lbs ~0 Gs
70 mm	2.28 kg / 5.03 lbs 1 085 Gs	0.34 kg / 0.75 lbs 342 g / 3.4 N	2.05 kg / 4.53 lbs ~0 Gs
80 mm	1.34 kg / 2.96 lbs 832 Gs	0.20 kg / 0.44 lbs 201 g / 2.0 N	1.21 kg / 2.66 lbs ~0 Gs
90 mm	0.82 kg / 1.80 lbs 650 Gs	0.12 kg / 0.27 lbs 123 g / 1.2 N	0.74 kg / 1.62 lbs ~0 Gs
100 mm	0.52 kg / 1.14 lbs 517 Gs	0.08 kg / 0.17 lbs 78 g / 0.8 N	0.47 kg / 1.03 lbs ~0 Gs

Two magnets interact from a significantly greater distance than a magnet and steel setup. The setup of magnet-to-magnet generates a stronger field and a further horizon of operation. Planning to create a solid fastener? Use a pair of magnets instead of one magnet and a striker plate. Be careful that when connecting a pair of magnets, the pinch force is massive. The levitation is a bit weaker than the connection force, but still large.
*Flux density between like poles drops to ~0 Gs in the exact middle between the magnets (caused by magnetic field nullification).
* Results demonstrate shear force of a pair of matching magnets (friction ~0.15 for Ni-Ni coating).

Table 7: Protective zones (implants) - precautionary measures
MW 40x30 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	23.5 cm
Hearing aid	10 Gs (1.0 mT)	18.0 cm
Mechanical watch	20 Gs (2.0 mT)	14.0 cm
Mobile device	40 Gs (4.0 mT)	11.0 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 is a large risk to IT equipment and medical implants. These neodymiums produce a field that destroys function of digital equipment. Remember: the invisible magnetic field passes through tissues and plastic. Exceptional care must be exercised by people with cochlear implants and insulin pumps. The risk also applies to: mechanical watches, remotes, speakers, and displays. Do not place the magnet near cards, HDD media, or sensitive navigation tools.

Table 8: Collisions (kinetic energy) - warning
MW 40x30 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	16.37 km/h (4.55 m/s)	2.92 J
30 mm	24.60 km/h (6.83 m/s)	6.60 J
50 mm	31.42 km/h (8.73 m/s)	10.77 J
100 mm	44.37 km/h (12.33 m/s)	21.48 J

Magnetic elements are very brittle – a violent impact against metal can result in shattering. Pay attention to connection velocity – a neodymium left loose speeds with massive force. Striking energy can cause material chips or painful pinches to skin. Be sure to control the product during mounting so it doesn't hit violently against the steel surface. A contact at a velocity of dozens of km/h almost guarantees destruction of the neodymium. Use safety goggles when playing with large magnets.

Table 9: Coating parameters (durability)
MW 40x30 / 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. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Construction data (P_c)
MW 40x30 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	65 488 Mx	654.9 µWb
P_c Coefficient	0.76	High (Stable)

Flux value emitted by the pole surface. Essential parameter for generator designers and motors. P_c value determines the magnet's operating point.

Table 11: Hydrostatics and buoyancy
MW 40x30 / N38

Environment	Effective steel pull	Effect
Air (land)	54.73 kg	Standard
Water (riverbed)	62.67 kg (+7.94 kg buoyancy gain)	+14.5%

Corrosion 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. Wall mount (shear)

*Note: On a vertical wall, the magnet retains merely approx. 20-30% of its max power.

2. Steel saturation

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

3. Temperature resistance

*For N38 grade, the max working temp is 80°C.

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.76

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: 010068-2026

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The presented product is an extremely powerful cylinder magnet, made from advanced NdFeB material, which, at dimensions of Ø40x30 mm, guarantees the highest energy density. The MW 40x30 / N38 model boasts an accuracy of ±0.1mm and industrial build quality, making it an excellent solution for the most demanding engineers and designers. As a magnetic rod with significant force (approx. 54.73 kg), this product is in stock from our warehouse in Poland, ensuring quick order fulfillment. Additionally, its triple-layer Ni-Cu-Ni coating shields it against corrosion in typical operating conditions, ensuring an aesthetic appearance and durability for years.

This model is ideal for building electric motors, advanced sensors, and efficient magnetic separators, where maximum induction on a small surface counts. Thanks to the high power of 536.88 N with a weight of only 282.74 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., 40.1 mm) using epoxy glues. To ensure long-term durability in automation, anaerobic resins are used, which are safe for nickel and fill the gap, guaranteeing high repeatability of the connection.

Magnets N38 are strong enough for the majority of applications in automation and machine building, where extreme miniaturization with maximum force is not required. If you need even stronger magnets in the same volume (Ø40x30), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our warehouse.

The presented product is a neodymium magnet with precisely defined parameters: diameter 40 mm and height 30 mm. The key parameter here is the lifting capacity amounting to approximately 54.73 kg (force ~536.88 N), which, with such compact dimensions, proves the high power of the NdFeB material. The product has a [NiCuNi] coating, which protects the surface against oxidation, giving it an aesthetic, silvery shine.

This cylinder is magnetized axially (along the height of 30 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.

Strengths and weaknesses of neodymium magnets.

Strengths

Apart from their superior magnetism, neodymium magnets have these key benefits:

They have stable power, and over around ten years their performance decreases symbolically – ~1% (according to theory),
Neodymium magnets are distinguished by extremely resistant to demagnetization caused by external magnetic fields,
Thanks to the metallic finish, the surface of nickel, gold-plated, or silver-plated gives an elegant appearance,
Magnetic induction on the working part of the magnet remains maximum,
Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the shape) even at high temperatures reaching 230°C or more...
In view of the possibility of precise shaping and adaptation to individualized requirements, NdFeB magnets can be modeled in a wide range of forms and dimensions, which expands the range of possible applications,
Wide application in electronics industry – they find application in HDD drives, drive modules, precision medical tools, as well as technologically advanced constructions.
Thanks to concentrated force, small magnets offer high operating force, occupying minimum space,

Limitations

Drawbacks and weaknesses of neodymium magnets: application proposals

At strong impacts they can break, therefore we advise placing them in special holders. A metal housing provides additional protection against damage and increases the magnet's durability.
Neodymium magnets lose their strength under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
When exposed to humidity, magnets usually rust. To use them in conditions outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation as well as corrosion.
Limited ability of creating nuts in the magnet and complex shapes - preferred is cover - mounting mechanism.
Possible danger resulting from small fragments of magnets are risky, when accidentally swallowed, which gains importance in the context of child safety. It is also worth noting that tiny parts of these products are able to be problematic in diagnostics medical in case of swallowing.
Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Lifting parameters

Optimal lifting capacity of a neodymium magnet – what affects it?

Breakaway force is the result of a measurement for optimal configuration, taking into account:

on a base made of mild steel, effectively closing the magnetic field
with a cross-section no less than 10 mm
with an polished touching surface
with zero gap (without coatings)
for force acting at a right angle (pull-off, not shear)
in temp. approx. 20°C

Magnet lifting force in use – key factors

During everyday use, the actual lifting capacity is determined by a number of factors, ranked from most significant:

Gap between surfaces – even a fraction of a millimeter of distance (caused e.g. by veneer or dirt) significantly weakens the pulling force, often by half at just 0.5 mm.
Force direction – catalog parameter refers to pulling vertically. When applying parallel force, the magnet holds significantly lower power (often approx. 20-30% of nominal force).
Wall thickness – thin material does not allow full use of the magnet. Magnetic flux penetrates through instead of generating force.
Metal type – different alloys reacts the same. Alloy additives worsen the attraction effect.
Surface condition – ground elements ensure maximum contact, which increases force. Uneven metal weaken the grip.
Thermal factor – high temperature reduces pulling force. Too high temperature can permanently demagnetize the magnet.

Holding force was measured on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, however under attempts to slide the magnet the load capacity is reduced by as much as 75%. Moreover, even a small distance between the magnet and the plate lowers the lifting capacity.

H&S for magnets

Compass and GPS

Navigation devices and smartphones are highly susceptible to magnetism. Direct contact with a powerful NdFeB magnet can ruin the internal compass in your phone.

Flammability

Drilling and cutting of neodymium magnets poses a fire risk. Magnetic powder reacts violently with oxygen and is hard to extinguish.

Danger to pacemakers

Warning for patients: Powerful magnets affect electronics. Maintain minimum 30 cm distance or ask another person to work with the magnets.

No play value

Only for adults. Tiny parts can be swallowed, leading to intestinal necrosis. Keep out of reach of kids and pets.

Crushing risk

Large magnets can break fingers in a fraction of a second. Under no circumstances put your hand between two attracting surfaces.

Do not overheat magnets

Regular neodymium magnets (grade N) lose magnetization when the temperature goes above 80°C. Damage is permanent.

Eye protection

Protect your eyes. Magnets can fracture upon uncontrolled impact, ejecting sharp fragments into the air. Wear goggles.

Safe operation

Use magnets consciously. Their huge power can surprise even professionals. Stay alert and respect their force.

Sensitization to coating

Studies show that nickel (standard magnet coating) is a common allergen. For allergy sufferers, prevent direct skin contact and choose coated magnets.

Electronic devices

Device Safety: Strong magnets can damage payment cards and delicate electronics (pacemakers, hearing aids, mechanical watches).

Safety First! Details about risks in the article: Safety of working with magnets.

MW 40x30 / N38 - cylindrical magnet

Physical properties - MW 40x30 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical simulation of the assembly - report

Table 1: Static pull force (pull vs distance) - power drop MW 40x30 / N38

Table 2: Sliding load (vertical surface) MW 40x30 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces MW 40x30 / N38

Table 4: Steel thickness (substrate influence) - sheet metal selection MW 40x30 / N38

Table 5: Working in heat (stability) - resistance threshold MW 40x30 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field range MW 40x30 / N38

Table 7: Protective zones (implants) - precautionary measures MW 40x30 / N38

Table 8: Collisions (kinetic energy) - warning MW 40x30 / N38

Table 9: Coating parameters (durability) MW 40x30 / N38

Table 10: Construction data (Pc) MW 40x30 / N38

Table 11: Hydrostatics and buoyancy MW 40x30 / N38

1. Wall mount (shear)

2. Steel saturation

3. Temperature resistance

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

Elemental analysis

Environmental data

Magnet pull force

Magnetic Field

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MW 70x60 / N38 - cylindrical magnet

MW 5x1 / N38 - cylindrical magnet

MPL 30x20x4 / N38 - lamellar magnet

FM Ruszt magnetyczny do leja fi 200 dwupoziomowy / N52 - magnetic filter

Strengths and weaknesses of neodymium magnets.

Strengths

Limitations

Lifting parameters

Optimal lifting capacity of a neodymium magnet – what affects it?

Magnet lifting force in use – key factors

H&S for magnets

Compass and GPS

Flammability

Danger to pacemakers

No play value

Crushing risk

Do not overheat magnets

Eye protection

Safe operation

Sensitization to coating

Electronic devices

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (pull vs distance) - power drop
MW 40x30 / N38

Table 2: Sliding load (vertical surface)
MW 40x30 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 40x30 / N38

Table 4: Steel thickness (substrate influence) - sheet metal selection
MW 40x30 / N38

Table 5: Working in heat (stability) - resistance threshold
MW 40x30 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field range
MW 40x30 / N38

Table 7: Protective zones (implants) - precautionary measures
MW 40x30 / N38

Table 8: Collisions (kinetic energy) - warning
MW 40x30 / N38

Table 9: Coating parameters (durability)
MW 40x30 / N38

Table 10: Construction data (P_c)
MW 40x30 / N38

Table 11: Hydrostatics and buoyancy
MW 40x30 / N38