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MW 30x5 / 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 010056

GTIN/EAN: 5906301810551

5.00

Diameter Ø

30 mm [±0,1 mm]

Height

5 mm [±0,1 mm]

Weight

26.51 g

Magnetization Direction

↑ axial

Load capacity

8.71 kg / 85.42 N

Magnetic Induction

196.02 mT / 1960 Gs

Coating

[NiCuNi] Nickel

see parameters »

8.35 ZŁ with VAT / pcs + price for transport

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Detailed specification - MW 30x5 / N38 - cylindrical magnet

Specification / characteristics - MW 30x5 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010056
GTIN/EAN	5906301810551
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	30 mm [±0,1 mm]
Height	5 mm [±0,1 mm]
Weight	26.51 g
Magnetization Direction	↑ axial
Load capacity ~ ?	8.71 kg / 85.42 N
Magnetic Induction ~ ?	196.02 mT / 1960 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 30x5 / 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 magnet - report

Presented data represent the result of a physical analysis. Results rely on algorithms for the class Nd₂Fe₁₄B. Operational conditions might slightly deviate from the simulation results. Use these data as a preliminary roadmap during assembly planning.

Table 1: Static pull force (force vs gap) - interaction chart
MW 30x5 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	1960 Gs 196.0 mT	8.71 kg / 19.20 pounds 8710.0 g / 85.4 N	warning
1 mm	1890 Gs 189.0 mT	8.10 kg / 17.86 pounds 8100.7 g / 79.5 N	warning
2 mm	1802 Gs 180.2 mT	7.37 kg / 16.24 pounds 7366.2 g / 72.3 N	warning
3 mm	1702 Gs 170.2 mT	6.57 kg / 14.47 pounds 6565.7 g / 64.4 N	warning
5 mm	1479 Gs 147.9 mT	4.96 kg / 10.93 pounds 4956.4 g / 48.6 N	warning
10 mm	945 Gs 94.5 mT	2.02 kg / 4.46 pounds 2024.4 g / 19.9 N	warning
15 mm	576 Gs 57.6 mT	0.75 kg / 1.66 pounds 752.1 g / 7.4 N	low risk
20 mm	356 Gs 35.6 mT	0.29 kg / 0.64 pounds 288.1 g / 2.8 N	low risk
30 mm	153 Gs 15.3 mT	0.05 kg / 0.12 pounds 53.2 g / 0.5 N	low risk
50 mm	43 Gs 4.3 mT	0.00 kg / 0.01 pounds 4.2 g / 0.0 N	low risk

Magnetic force decreases sharply with every mm of distance. Remember that every additional insulation layer (e.g., contamination, paint, rust) strongly reduces the pull force. Magnetic products operate most effectively during direct contact; air break weakens the force. See how flashily the load capacity plummet, when the magnet does not touch flatly to the metal substrate. When planning the assembly, avoid unnecessary gaps.

Table 2: Slippage capacity (vertical surface)
MW 30x5 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	1.74 kg / 3.84 pounds 1742.0 g / 17.1 N
1 mm	Stal (~0.2)	1.62 kg / 3.57 pounds 1620.0 g / 15.9 N
2 mm	Stal (~0.2)	1.47 kg / 3.25 pounds 1474.0 g / 14.5 N
3 mm	Stal (~0.2)	1.31 kg / 2.90 pounds 1314.0 g / 12.9 N
5 mm	Stal (~0.2)	0.99 kg / 2.19 pounds 992.0 g / 9.7 N
10 mm	Stal (~0.2)	0.40 kg / 0.89 pounds 404.0 g / 4.0 N
15 mm	Stal (~0.2)	0.15 kg / 0.33 pounds 150.0 g / 1.5 N
20 mm	Stal (~0.2)	0.06 kg / 0.13 pounds 58.0 g / 0.6 N
30 mm	Stal (~0.2)	0.01 kg / 0.02 pounds 10.0 g / 0.1 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N

The following data presents the theoretical holding capacity necessary to start the shifting of the magnet downwards on a vertical metal surface (considering typical friction coefficient). The holding force is relative to the distance between the magnet and the metal.

Table 3: Wall mounting (sliding) - vertical pull
MW 30x5 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	2.61 kg / 5.76 pounds 2613.0 g / 25.6 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	1.74 kg / 3.84 pounds 1742.0 g / 17.1 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.87 kg / 1.92 pounds 871.0 g / 8.5 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	4.36 kg / 9.60 pounds 4355.0 g / 42.7 N

When placing a magnet on a vertical wall (e.g., a fridge), it will maintain just about 20%-30% of its nominal power. Gravity and a low friction coefficient cause that products slide down faster than they detach. Designing a wall mount? Consider that the shear force is noticeably lower than the maximum static pull force. On a slippery surface, the magnet will slip down under a noticeably lighter load. Using a rubber coating can significantly increase the grip.

Table 4: Material efficiency (saturation) - sheet metal selection
MW 30x5 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.87 kg / 1.92 pounds 871.0 g / 8.5 N
1 mm	25%	2.18 kg / 4.80 pounds 2177.5 g / 21.4 N
2 mm	50%	4.36 kg / 9.60 pounds 4355.0 g / 42.7 N
3 mm	75%	6.53 kg / 14.40 pounds 6532.5 g / 64.1 N
5 mm	100%	8.71 kg / 19.20 pounds 8710.0 g / 85.4 N
10 mm	100%	8.71 kg / 19.20 pounds 8710.0 g / 85.4 N
11 mm	100%	8.71 kg / 19.20 pounds 8710.0 g / 85.4 N
12 mm	100%	8.71 kg / 19.20 pounds 8710.0 g / 85.4 N

A too thin steel is unable to take in the entire magnetic field, which weakens actual performance of the holder. If you install a neodymium to a weak sheet, the magnetism will pass right through and the holding will be smaller. To utilize the maximum of this neodymium's power, you require a sufficiently solid backing of steel. The saturation effect means that on sheet metal structures (e.g., car bodies), the holder works worse. We recommend selecting the steel cross-section from these parameters.

Table 5: Working in heat (stability) - resistance threshold
MW 30x5 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	8.71 kg / 19.20 pounds 8710.0 g / 85.4 N	OK
40 °C	-2.2%	8.52 kg / 18.78 pounds 8518.4 g / 83.6 N	OK
60 °C	-4.4%	8.33 kg / 18.36 pounds 8326.8 g / 81.7 N
80 °C	-6.6%	8.14 kg / 17.93 pounds 8135.1 g / 79.8 N
100 °C	-28.8%	6.20 kg / 13.67 pounds 6201.5 g / 60.8 N

Ordinary NdFeB products change their properties power after exceeding the maximum temperature. Watch out for overheating – heat can permanently demagnetize this magnet. With increasing heat, the magnet's force briefly drops. Refrain from using this magnet near heat sources higher than its safe range. Ignoring the limit will cause permanent loss of magnetism.

*Technical advisory: Temperature resistance is determined by both grade, and the Permeance Coefficient Pc. Low-profile magnets (low permeance coefficient) are more susceptible to demagnetization at lower temperatures than taller cylinders. Warning indicator in the table points to a risk of irreversible loss for this specific geometry.

Table 6: Two magnets (repulsion) - forces in the system
MW 30x5 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Sliding Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	16.74 kg / 36.91 pounds 3 437 Gs	2.51 kg / 5.54 pounds 2511 g / 24.6 N	N/A
1 mm	16.20 kg / 35.71 pounds 3 856 Gs	2.43 kg / 5.36 pounds 2429 g / 23.8 N	14.58 kg / 32.14 pounds ~0 Gs
2 mm	15.57 kg / 34.33 pounds 3 780 Gs	2.34 kg / 5.15 pounds 2335 g / 22.9 N	14.01 kg / 30.89 pounds ~0 Gs
3 mm	14.89 kg / 32.82 pounds 3 696 Gs	2.23 kg / 4.92 pounds 2233 g / 21.9 N	13.40 kg / 29.54 pounds ~0 Gs
5 mm	13.40 kg / 29.54 pounds 3 507 Gs	2.01 kg / 4.43 pounds 2010 g / 19.7 N	12.06 kg / 26.58 pounds ~0 Gs
10 mm	9.53 kg / 21.00 pounds 2 957 Gs	1.43 kg / 3.15 pounds 1429 g / 14.0 N	8.57 kg / 18.90 pounds ~0 Gs
20 mm	3.89 kg / 8.58 pounds 1 890 Gs	0.58 kg / 1.29 pounds 584 g / 5.7 N	3.50 kg / 7.72 pounds ~0 Gs
50 mm	0.23 kg / 0.50 pounds 458 Gs	0.03 kg / 0.08 pounds 34 g / 0.3 N	0.21 kg / 0.45 pounds ~0 Gs
60 mm	0.10 kg / 0.23 pounds 307 Gs	0.02 kg / 0.03 pounds 15 g / 0.2 N	0.09 kg / 0.20 pounds ~0 Gs
70 mm	0.05 kg / 0.11 pounds 213 Gs	0.01 kg / 0.02 pounds 7 g / 0.1 N	0.04 kg / 0.10 pounds ~0 Gs
80 mm	0.03 kg / 0.06 pounds 153 Gs	0.00 kg / 0.01 pounds 4 g / 0.0 N	0.02 kg / 0.05 pounds ~0 Gs
90 mm	0.01 kg / 0.03 pounds 113 Gs	0.00 kg / 0.00 pounds 2 g / 0.0 N	0.01 kg / 0.03 pounds ~0 Gs
100 mm	0.01 kg / 0.02 pounds 86 Gs	0.00 kg / 0.00 pounds 1 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs

Two magnetic products interact from a significantly greater distance than a neodymium and metal combination. The setup of magnet-to-magnet generates a stronger field and a further horizon of operation. Designing a solid fastener? Apply two magnets instead of one magnet and a striker plate. Exercise caution that when attracting two neodymiums, the pinch force is massive. The repulsion force is a bit weaker than the connection force, but still significant.
*Flux density for N-N configuration drops to ~0 Gs at the geometric center of the gap (due to field cancellation).
Important: Calculations refer to sliding force of dual identical magnets (friction ~0.15 for Ni-Ni coating).

Table 7: Safety (HSE) (implants) - warnings
MW 30x5 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	11.0 cm
Hearing aid	10 Gs (1.0 mT)	8.5 cm
Timepiece	20 Gs (2.0 mT)	7.0 cm
Mobile device	40 Gs (4.0 mT)	5.5 cm
Remote	50 Gs (5.0 mT)	5.0 cm
Payment card	400 Gs (40.0 mT)	2.0 cm
HDD hard drive	600 Gs (60.0 mT)	1.5 cm

Extremely neodym field is a large risk to IT equipment as well as pacemakers. These neodymiums generate a field that prevents correct functioning of sensitive medical devices. Notice: the invisible magnetic field passes through tissues and glass. Special caution must be exercised by people with cochlear implants and insulin pumps. The risk also applies to: mechanical watches, remotes, membranes, and screens. Do not bring the product near payment cards, HDD media, or sensitive navigation tools.

Table 8: Impact energy (kinetic energy) - warning
MW 30x5 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	20.77 km/h (5.77 m/s)	0.44 J
30 mm	31.78 km/h (8.83 m/s)	1.03 J
50 mm	40.89 km/h (11.36 m/s)	1.71 J
100 mm	57.81 km/h (16.06 m/s)	3.42 J

Neodymium magnets are prone to chipping – a violent impact against metal can result in shattering. Control the attraction moment – a neodymium left loose speeds with massive force. Kinetic force can trigger coating fragments or dangerous crushing 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 magnet. Wear safety glasses when working with powerful specimens.

Table 9: Surface protection spec
MW 30x5 / 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 30x5 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	16 658 Mx	166.6 µWb
P_c Coefficient	0.25	Low (Flat)

Flux value emitted by the pole surface. Key data when building generators as well as sensors. P_c value defines the working geometry.

Table 11: Underwater work (magnet fishing)
MW 30x5 / N38

Environment	Effective steel pull	Effect
Air (land)	8.71 kg	Standard
Water (riverbed)	9.97 kg (+1.26 kg buoyancy gain)	+14.5%

Corrosion warning: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!

In water, the magnet feels stronger thanks to Archimedes' principle. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Sliding resistance

*Caution: On a vertical wall, the magnet holds just approx. 20-30% of its perpendicular strength.

2. Efficiency vs thickness

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

3. Thermal stability

*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) = 0.25

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%

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: 010056-2026

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MP 25x7.5/4.5x5 / N38 - ring magnet

8.00 ZŁ brutto / pcs

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23.99 ZŁ brutto / pcs

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MP 5x2.7/1.2x5 S / N38 - ring magnet

0.836 ZŁ brutto / pcs

This product is an exceptionally strong cylinder magnet, composed of advanced NdFeB material, which, with dimensions of Ø30x5 mm, guarantees maximum efficiency. The MW 30x5 / N38 model is characterized by an accuracy of ±0.1mm and industrial build quality, making it a perfect solution for professional engineers and designers. As a magnetic rod with impressive force (approx. 8.71 kg), this product is in stock from our European logistics center, ensuring quick order fulfillment. Additionally, its 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 generators, advanced sensors, and efficient magnetic separators, where maximum induction on a small surface counts. Thanks to the pull force of 85.42 N with a weight of only 26.51 g, this rod is indispensable in miniature devices and wherever every gram matters.

Since our magnets have a tolerance of ±0.1mm, the recommended way is to glue them into holes with a slightly larger diameter (e.g., 30.1 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 an optimal price-to-power ratio and operational stability. If you need even stronger magnets in the same volume (Ø30x5), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our store.

This model is characterized by dimensions Ø30x5 mm, which, at a weight of 26.51 g, makes it an element with high magnetic energy density. The value of 85.42 N means that the magnet is capable of holding a weight many times exceeding its own mass of 26.51 g. The product has a [NiCuNi] coating, which secures it against oxidation, giving it an aesthetic, silvery shine.

This rod magnet is magnetized axially (along the height of 5 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 neodymium magnets.

Strengths

Besides their immense field intensity, neodymium magnets offer the following advantages:

Their magnetic field is maintained, and after around 10 years it drops only by ~1% (according to research),
Neodymium magnets are highly resistant to loss of magnetic properties caused by magnetic disturbances,
Thanks to the shiny finish, the surface of Ni-Cu-Ni, gold-plated, or silver-plated gives an elegant appearance,
They are known for high magnetic induction at the operating surface, which improves attraction properties,
Due to their durability and thermal resistance, neodymium magnets can operate (depending on the form) even at high temperatures reaching 230°C or more...
Due to the option of accurate molding and customization to custom needs, magnetic components can be created in a broad palette of shapes and sizes, which amplifies use scope,
Universal use in future technologies – they are used in hard drives, drive modules, medical devices, as well as multitasking production systems.
Relatively small size with high pulling force – neodymium magnets offer high power in small dimensions, which makes them useful in miniature devices

Cons

Disadvantages of NdFeB magnets:

To avoid cracks under impact, we recommend using special steel housings. Such a solution secures the magnet and simultaneously increases its durability.
We warn that neodymium magnets can reduce their power at high temperatures. To prevent this, we recommend our specialized [AH] magnets, which work effectively even at 230°C.
Magnets exposed to a humid environment can corrode. Therefore during using outdoors, we advise using waterproof magnets made of rubber, plastic or other material resistant to moisture
We suggest a housing - magnetic holder, due to difficulties in realizing nuts inside the magnet and complicated shapes.
Potential hazard related to microscopic parts of magnets pose a threat, if swallowed, which becomes key in the aspect of protecting the youngest. Additionally, small components of these devices are able to disrupt the diagnostic process medical in case of swallowing.
Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Pull force analysis

Maximum holding power of the magnet – what contributes to it?

The lifting capacity listed is a result of laboratory testing executed under the following configuration:

using a base made of mild steel, acting as a circuit closing element
possessing a thickness of at least 10 mm to ensure full flux closure
with a plane free of scratches
without the slightest clearance between the magnet and steel
for force applied at a right angle (in the magnet axis)
in temp. approx. 20°C

Impact of factors on magnetic holding capacity in practice

Holding efficiency is influenced by working environment parameters, including (from most important):

Space between surfaces – even a fraction of a millimeter of distance (caused e.g. by varnish or unevenness) diminishes the magnet efficiency, often by half at just 0.5 mm.
Force direction – catalog parameter refers to detachment vertically. When slipping, the magnet exhibits much less (typically approx. 20-30% of nominal force).
Substrate thickness – to utilize 100% power, the steel must be sufficiently thick. Paper-thin metal limits the lifting capacity (the magnet "punches through" it).
Material composition – not every steel reacts the same. Alloy additives weaken the interaction with the magnet.
Surface condition – ground elements ensure maximum contact, which improves force. Rough surfaces reduce efficiency.
Thermal environment – heating the magnet causes a temporary drop of force. It is worth remembering the maximum operating temperature for a given model.

Lifting capacity testing was performed on plates with a smooth surface of optimal thickness, under a perpendicular pulling force, in contrast under parallel forces the holding force is lower. Moreover, even a small distance between the magnet’s surface and the plate reduces the load capacity.

Warnings

Do not give to children

Neodymium magnets are not toys. Accidental ingestion of a few magnets may result in them attracting across intestines, which constitutes a direct threat to life and requires immediate surgery.

Do not underestimate power

Before use, read the rules. Sudden snapping can destroy the magnet or hurt your hand. Be predictive.

Life threat

Warning for patients: Strong magnetic fields disrupt electronics. Maintain minimum 30 cm distance or request help to handle the magnets.

Crushing risk

Watch your fingers. Two powerful magnets will join instantly with a force of several hundred kilograms, crushing anything in their path. Be careful!

Sensitization to coating

Warning for allergy sufferers: The nickel-copper-nickel coating consists of nickel. If skin irritation happens, immediately stop working with magnets and use protective gear.

Electronic hazard

Powerful magnetic fields can destroy records on payment cards, HDDs, and other magnetic media. Maintain a gap of at least 10 cm.

Beware of splinters

Neodymium magnets are sintered ceramics, meaning they are fragile like glass. Collision of two magnets leads to them breaking into shards.

Fire warning

Powder generated during grinding of magnets is combustible. Do not drill into magnets unless you are an expert.

Keep away from electronics

Remember: rare earth magnets generate a field that disrupts precision electronics. Maintain a separation from your mobile, tablet, and GPS.

Operating temperature

Monitor thermal conditions. Exposing the magnet above 80 degrees Celsius will destroy its properties and strength.

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

MW 30x5 / N38 - cylindrical magnet

Detailed specification - MW 30x5 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical modeling of the magnet - report

Table 1: Static pull force (force vs gap) - interaction chart MW 30x5 / N38

Table 2: Slippage capacity (vertical surface) MW 30x5 / N38

Table 3: Wall mounting (sliding) - vertical pull MW 30x5 / N38

Table 4: Material efficiency (saturation) - sheet metal selection MW 30x5 / N38

Table 5: Working in heat (stability) - resistance threshold MW 30x5 / N38

Table 6: Two magnets (repulsion) - forces in the system MW 30x5 / N38

Table 7: Safety (HSE) (implants) - warnings MW 30x5 / N38

Table 8: Impact energy (kinetic energy) - warning MW 30x5 / N38

Table 9: Surface protection spec MW 30x5 / N38

Table 10: Electrical data (Pc) MW 30x5 / N38

Table 11: Underwater work (magnet fishing) MW 30x5 / N38

1. Sliding resistance

2. Efficiency vs thickness

3. Thermal stability

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

Elemental analysis

Environmental data

Magnet pull force

Field Strength

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MP 5x2.7/1.2x5 S / N38 - ring magnet

Pros as well as cons of neodymium magnets.

Strengths

Cons

Pull force analysis

Maximum holding power of the magnet – what contributes to it?

Impact of factors on magnetic holding capacity in practice

Warnings

Do not give to children

Do not underestimate power

Life threat

Crushing risk

Sensitization to coating

Electronic hazard

Beware of splinters

Fire warning

Keep away from electronics

Operating temperature

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs gap) - interaction chart
MW 30x5 / N38

Table 2: Slippage capacity (vertical surface)
MW 30x5 / N38

Table 3: Wall mounting (sliding) - vertical pull
MW 30x5 / N38

Table 4: Material efficiency (saturation) - sheet metal selection
MW 30x5 / N38

Table 5: Working in heat (stability) - resistance threshold
MW 30x5 / N38

Table 6: Two magnets (repulsion) - forces in the system
MW 30x5 / N38

Table 7: Safety (HSE) (implants) - warnings
MW 30x5 / N38

Table 8: Impact energy (kinetic energy) - warning
MW 30x5 / N38

Table 9: Surface protection spec
MW 30x5 / N38

Table 10: Electrical data (P_c)
MW 30x5 / N38

Table 11: Underwater work (magnet fishing)
MW 30x5 / N38