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MW 5x30 / 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 010088

GTIN/EAN: 5906301810872

5.00

Diameter Ø

5 mm [±0,1 mm]

Height

30 mm [±0,1 mm]

Weight

4.42 g

Magnetization Direction

↑ axial

Load capacity

0.45 kg / 4.40 N

Magnetic Induction

616.32 mT / 6163 Gs

Coating

[NiCuNi] Nickel

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3.57 ZŁ with VAT / pcs + price for transport

2.90 ZŁ net + 23% VAT / pcs

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Technical data of the product - MW 5x30 / N38 - cylindrical magnet

Specification / characteristics - MW 5x30 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010088
GTIN/EAN	5906301810872
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	5 mm [±0,1 mm]
Height	30 mm [±0,1 mm]
Weight	4.42 g
Magnetization Direction	↑ axial
Load capacity ~ ?	0.45 kg / 4.40 N
Magnetic Induction ~ ?	616.32 mT / 6163 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 5x30 / 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 magnet - data

Presented information are the outcome of a physical analysis. Results were calculated on algorithms for the material Nd₂Fe₁₄B. Actual conditions may deviate from the simulation results. Please consider these data as a reference point for designers.

Table 1: Static force (pull vs distance) - interaction chart
MW 5x30 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	6154 Gs 615.4 mT	0.45 kg / 0.99 pounds 450.0 g / 4.4 N	weak grip
1 mm	3877 Gs 387.7 mT	0.18 kg / 0.39 pounds 178.6 g / 1.8 N	weak grip
2 mm	2308 Gs 230.8 mT	0.06 kg / 0.14 pounds 63.3 g / 0.6 N	weak grip
3 mm	1419 Gs 141.9 mT	0.02 kg / 0.05 pounds 23.9 g / 0.2 N	weak grip
5 mm	639 Gs 63.9 mT	0.00 kg / 0.01 pounds 4.8 g / 0.0 N	weak grip
10 mm	173 Gs 17.3 mT	0.00 kg / 0.00 pounds 0.4 g / 0.0 N	weak grip
15 mm	75 Gs 7.5 mT	0.00 kg / 0.00 pounds 0.1 g / 0.0 N	weak grip
20 mm	40 Gs 4.0 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	weak grip
30 mm	16 Gs 1.6 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	weak grip
50 mm	5 Gs 0.5 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	weak grip

Pulling power drops sharply with every subsequent millimeter of distance. Remember that every additional insulation layer (e.g., contamination, paint, rust) strongly weakens the grip. Neodymiums operate optimally during direct contact; air break nullifies the force. Observe how rapidly the pull force fall, when the magnet does not touch flatly to the metal substrate. When planning the mounting, discard additional spacers.

Table 2: Sliding load (vertical surface)
MW 5x30 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.09 kg / 0.20 pounds 90.0 g / 0.9 N
1 mm	Stal (~0.2)	0.04 kg / 0.08 pounds 36.0 g / 0.4 N
2 mm	Stal (~0.2)	0.01 kg / 0.03 pounds 12.0 g / 0.1 N
3 mm	Stal (~0.2)	0.00 kg / 0.01 pounds 4.0 g / 0.0 N
5 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N
10 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N
15 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N
20 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N
30 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N

The table below calculates the approximate holding capacity required to start the sliding of the magnet down on a upright metal surface (assuming typical friction coefficient). The holding force is a function of the gap size between the magnet and the metal.

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MW 5x30 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.14 kg / 0.30 pounds 135.0 g / 1.3 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.09 kg / 0.20 pounds 90.0 g / 0.9 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.05 kg / 0.10 pounds 45.0 g / 0.4 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.23 kg / 0.50 pounds 225.0 g / 2.2 N

When mounting a element on a upright wall (e.g., a board), it will maintain only about 1/5 of its nominal power. Gravity as well as a weak degree of grip cause that products move down faster than they detach. Designing a hanger? Note that the shear force is noticeably lower than the maximum static pull force. On a smooth steel, the holder will give way down under a much lighter load. Using a rubber pad can significantly increase the grip.

Table 4: Steel thickness (saturation) - sheet metal selection
MW 5x30 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.05 kg / 0.10 pounds 45.0 g / 0.4 N
1 mm	25%	0.11 kg / 0.25 pounds 112.5 g / 1.1 N
2 mm	50%	0.23 kg / 0.50 pounds 225.0 g / 2.2 N
3 mm	75%	0.34 kg / 0.74 pounds 337.5 g / 3.3 N
5 mm	100%	0.45 kg / 0.99 pounds 450.0 g / 4.4 N
10 mm	100%	0.45 kg / 0.99 pounds 450.0 g / 4.4 N
11 mm	100%	0.45 kg / 0.99 pounds 450.0 g / 4.4 N
12 mm	100%	0.45 kg / 0.99 pounds 450.0 g / 4.4 N

A too thin steel cannot take in the full magnetic flux, which wastes potential of the magnet. If you attach a powerful product to a weak sheet, the field will penetrate right through and the holding will be smaller. To utilize 100% of this neodymium's power, you require a sufficiently solid piece of metal. The saturation effect causes that on delicate walls (e.g., thin profiles), the holder holds weaker. We advise picking the steel cross-section based on the following data.

Table 5: Thermal stability (stability) - thermal limit
MW 5x30 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	0.45 kg / 0.99 pounds 450.0 g / 4.4 N	OK
40 °C	-2.2%	0.44 kg / 0.97 pounds 440.1 g / 4.3 N	OK
60 °C	-4.4%	0.43 kg / 0.95 pounds 430.2 g / 4.2 N	OK
80 °C	-6.6%	0.42 kg / 0.93 pounds 420.3 g / 4.1 N
100 °C	-28.8%	0.32 kg / 0.71 pounds 320.4 g / 3.1 N

Standard neodymium magnets irreversibly lose power past the thermal threshold. Protect against heat – high temperature can permanently destroy this product. With increasing heat, the magnet's power temporarily drops. Refrain from using this product close to ovens higher than its operating temperature limit. Exceeding the critical threshold will lead to destruction of magnetism.

*Technical advisory: Temperature resistance depends not only on the material grade, as well as the dimension ratios. Flat magnets (pancake types) are more susceptible to demagnetization sooner than taller cylinders. Warning indicator in the table signals a risk of irreversible loss for this specific geometry.

Table 6: Magnet-Magnet interaction (repulsion) - field range
MW 5x30 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	4.58 kg / 10.11 pounds 6 170 Gs	0.69 kg / 1.52 pounds 688 g / 6.7 N	N/A
1 mm	2.98 kg / 6.57 pounds 9 927 Gs	0.45 kg / 0.99 pounds 447 g / 4.4 N	2.68 kg / 5.92 pounds ~0 Gs
2 mm	1.82 kg / 4.01 pounds 7 755 Gs	0.27 kg / 0.60 pounds 273 g / 2.7 N	1.64 kg / 3.61 pounds ~0 Gs
3 mm	1.08 kg / 2.39 pounds 5 981 Gs	0.16 kg / 0.36 pounds 162 g / 1.6 N	0.97 kg / 2.15 pounds ~0 Gs
5 mm	0.39 kg / 0.86 pounds 3 595 Gs	0.06 kg / 0.13 pounds 59 g / 0.6 N	0.35 kg / 0.78 pounds ~0 Gs
10 mm	0.05 kg / 0.11 pounds 1 278 Gs	0.01 kg / 0.02 pounds 7 g / 0.1 N	0.04 kg / 0.10 pounds ~0 Gs
20 mm	0.00 kg / 0.01 pounds 346 Gs	0.00 kg / 0.00 pounds 1 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
50 mm	0.00 kg / 0.00 pounds 49 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
60 mm	0.00 kg / 0.00 pounds 32 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
70 mm	0.00 kg / 0.00 pounds 22 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
80 mm	0.00 kg / 0.00 pounds 16 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
90 mm	0.00 kg / 0.00 pounds 12 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
100 mm	0.00 kg / 0.00 pounds 9 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs

Two magnetic products interact from a wider radius than a neodymium and metal setup. The setup of two magnets creates a more powerful interaction and a wider radius of performance. Want to build a solid fastener? Utilize two neodymiums instead of a neodymium and a steel. Exercise caution that when bringing together two magnets, the impact force is extreme. The levitation is slightly lower than the attraction, but still large.
*The magnetic induction between like poles reaches ~0 Gs at the geometric center between the magnets (due to field cancellation).
Attention: Results apply to friction force of a pair of identical neodymium magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Safety (HSE) (electronics) - precautionary measures
MW 5x30 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	5.0 cm
Hearing aid	10 Gs (1.0 mT)	4.0 cm
Timepiece	20 Gs (2.0 mT)	3.0 cm
Phone / Smartphone	40 Gs (4.0 mT)	2.5 cm
Remote	50 Gs (5.0 mT)	2.0 cm
Payment card	400 Gs (40.0 mT)	1.0 cm
HDD hard drive	600 Gs (60.0 mT)	1.0 cm

Extremely neodym field poses a serious hazard to IT equipment as well as pacemakers. These NdFeB products produce a field that destroys function of digital equipment. Notice: the invisible magnetic field penetrates the body and glass. Increased vigilance must be taken by people with cochlear implants and drug dispensers. Also at risk are: mechanical watches, remotes, speakers, and screens. Do not place the magnet near cards, hard drives, or sensitive navigation tools.

Table 8: Impact energy (kinetic energy) - warning
MW 5x30 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	10.18 km/h (2.83 m/s)	0.02 J
30 mm	17.63 km/h (4.90 m/s)	0.05 J
50 mm	22.75 km/h (6.32 m/s)	0.09 J
100 mm	32.18 km/h (8.94 m/s)	0.18 J

Neodymium magnets are delicate – a strong collision with metal causes immediate chipping. Control the attraction moment – a magnet released freely turns into a projectile. Kinetic force can trigger coating fragments or dangerous crushing to skin. Hold the magnet firmly during bringing near metal so it doesn't hit violently against the metal. A collision at high speed almost guarantees destruction of the magnet. Wear safety glasses when playing with large magnets.

Table 9: Anti-corrosion coating durability
MW 5x30 / 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)

Neodymium magnets are highly susceptible to corrosion without proper protection. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Electrical data (P_c)
MW 5x30 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	1 468 Mx	14.7 µWb
P_c Coefficient	1.59	High (Stable)

Total magnetic flux passing through the magnet pole. Key data in coil applications as well as sensors. P_c value defines the working geometry.

Table 11: Hydrostatics and buoyancy
MW 5x30 / N38

Environment	Effective steel pull	Effect
Air (land)	0.45 kg	Standard
Water (riverbed)	0.52 kg (+0.07 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!

Water displaces steel, making heavy objects slightly lighter. Buoyancy helps in lifting finds.

1. Shear force

*Warning: On a vertical surface, the magnet retains only approx. 20-30% of its perpendicular strength.

2. Efficiency vs thickness

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

3. Power loss vs temp

*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) = 1.59

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.

Engineering data and GPSR

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%

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: 010088-2026

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Product available Ships today (order by 14:00)

MW 55x25 / N38 - cylindrical magnet

154.21 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

MPL 100x40x20 / N38 - lamellar magnet

335.30 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

MW 15x1 / N38 - cylindrical magnet

0.800 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

UMH 25x8x45 [M5] / N38 - magnetic holder with hook

14.49 ZŁ brutto / pcs

The presented product is an extremely powerful cylindrical magnet, composed of modern NdFeB material, which, with dimensions of Ø5x30 mm, guarantees optimal power. This specific item features an accuracy of ±0.1mm and industrial build quality, making it an excellent solution for professional engineers and designers. As a cylindrical magnet with impressive force (approx. 0.45 kg), this product is in stock from our warehouse in Poland, ensuring rapid order fulfillment. Furthermore, its Ni-Cu-Ni coating effectively protects it against corrosion in standard operating conditions, guaranteeing an aesthetic appearance and durability for years.

This model is ideal for building electric motors, advanced sensors, and efficient magnetic separators, where field concentration on a small surface counts. Thanks to the pull force of 4.40 N with a weight of only 4.42 g, this cylindrical magnet is indispensable in electronics and wherever low weight is crucial.

Since our magnets have a very precise dimensions, the best method is to glue them into holes with a slightly larger diameter (e.g., 5.1 mm) using 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.

Grade N38 is the most frequently chosen standard for industrial neodymium magnets, offering an optimal price-to-power ratio and high resistance to demagnetization. If you need even stronger magnets in the same volume (Ø5x30), 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 Ø5x30 mm, which, at a weight of 4.42 g, makes it an element with high magnetic energy density. The key parameter here is the holding force amounting to approximately 0.45 kg (force ~4.40 N), which, with such defined dimensions, proves the high power of the NdFeB material. The product has a [NiCuNi] coating, which secures it against external factors, 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 5 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 through the diameter if your project requires it.

Strengths as well as weaknesses of neodymium magnets.

Benefits

Besides their tremendous pulling force, neodymium magnets offer the following advantages:

They virtually do not lose power, because even after 10 years the performance loss is only ~1% (in laboratory conditions),
They possess excellent resistance to weakening of magnetic properties due to external fields,
By covering with a lustrous coating of silver, the element gains an modern look,
The surface of neodymium magnets generates a powerful magnetic field – this is a distinguishing feature,
Through (appropriate) combination of ingredients, they can achieve high thermal resistance, enabling operation at temperatures reaching 230°C and above...
Due to the possibility of accurate shaping and adaptation to unique projects, neodymium magnets can be created in a wide range of forms and dimensions, which amplifies use scope,
Versatile presence in advanced technology sectors – they are used in data components, motor assemblies, medical equipment, and technologically advanced constructions.
Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Weaknesses

Characteristics of disadvantages of neodymium magnets: weaknesses and usage proposals

To avoid cracks upon strong impacts, we recommend using special steel housings. Such a solution protects the magnet and simultaneously increases its durability.
When exposed to high temperature, neodymium magnets suffer a drop in strength. Often, when the temperature exceeds 80°C, their power decreases (depending on the size and shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
Magnets exposed to a humid environment can corrode. Therefore during using outdoors, we suggest using waterproof magnets made of rubber, plastic or other material protecting against moisture
Limited ability of creating nuts in the magnet and complicated forms - recommended is casing - magnet mounting.
Potential hazard resulting from small fragments of magnets pose a threat, in case of ingestion, which is particularly important in the aspect of protecting the youngest. Additionally, small elements of these devices can disrupt the diagnostic process medical in case of swallowing.
Due to expensive raw materials, their price is relatively high,

Pull force analysis

Maximum lifting force for a neodymium magnet – what affects it?

Breakaway force was determined for the most favorable conditions, taking into account:

using a sheet made of high-permeability steel, acting as a magnetic yoke
with a cross-section minimum 10 mm
characterized by lack of roughness
with direct contact (without paint)
under perpendicular application of breakaway force (90-degree angle)
at ambient temperature approx. 20 degrees Celsius

Practical aspects of lifting capacity – factors

Please note that the magnet holding may be lower influenced by elements below, starting with the most relevant:

Gap between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by varnish or dirt) significantly weakens the pulling force, often by half at just 0.5 mm.
Loading method – catalog parameter refers to pulling vertically. When attempting to slide, the magnet exhibits significantly lower power (often approx. 20-30% of nominal force).
Metal thickness – thin material does not allow full use of the magnet. Part of the magnetic field passes through the material instead of generating force.
Material composition – different alloys reacts the same. Alloy additives worsen the interaction with the magnet.
Plate texture – ground elements guarantee perfect abutment, which improves field saturation. Uneven metal reduce efficiency.
Temperature – heating the magnet results in weakening of induction. Check the thermal limit for a given model.

Holding force was tested on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, whereas under shearing force the lifting capacity is smaller. Additionally, even a small distance between the magnet’s surface and the plate decreases the load capacity.

Safe handling of NdFeB magnets

Allergic reactions

Certain individuals have a sensitization to Ni, which is the typical protective layer for NdFeB magnets. Extended handling can result in a rash. We suggest use protective gloves.

Threat to electronics

Avoid bringing magnets close to a wallet, laptop, or screen. The magnetism can destroy these devices and erase data from cards.

Do not give to children

Adult use only. Tiny parts pose a choking risk, leading to intestinal necrosis. Keep away from kids and pets.

ICD Warning

For implant holders: Powerful magnets disrupt medical devices. Maintain minimum 30 cm distance or request help to handle the magnets.

Risk of cracking

Protect your eyes. Magnets can fracture upon violent connection, launching shards into the air. Eye protection is mandatory.

Pinching danger

Large magnets can break fingers instantly. Do not put your hand between two strong magnets.

Flammability

Machining of NdFeB material carries a risk of fire risk. Magnetic powder reacts violently with oxygen and is difficult to extinguish.

Handling rules

Use magnets with awareness. Their immense force can shock even experienced users. Plan your moves and do not underestimate their power.

GPS Danger

Remember: neodymium magnets produce a field that confuses sensitive sensors. Maintain a safe distance from your mobile, tablet, and navigation systems.

Do not overheat magnets

Standard neodymium magnets (N-type) undergo demagnetization when the temperature surpasses 80°C. Damage is permanent.

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

MW 5x30 / N38 - cylindrical magnet

Technical data of the product - MW 5x30 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering analysis of the magnet - data

Table 1: Static force (pull vs distance) - interaction chart MW 5x30 / N38

Table 2: Sliding load (vertical surface) MW 5x30 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces MW 5x30 / N38

Table 4: Steel thickness (saturation) - sheet metal selection MW 5x30 / N38

Table 5: Thermal stability (stability) - thermal limit MW 5x30 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field range MW 5x30 / N38

Table 7: Safety (HSE) (electronics) - precautionary measures MW 5x30 / N38

Table 8: Impact energy (kinetic energy) - warning MW 5x30 / N38

Table 9: Anti-corrosion coating durability MW 5x30 / N38

Table 10: Electrical data (Pc) MW 5x30 / N38

Table 11: Hydrostatics and buoyancy MW 5x30 / N38

1. Shear force

2. Efficiency vs thickness

3. Power loss vs temp

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

Elemental analysis

Sustainability

Magnet pull force

Field Strength

See more proposals

MW 55x25 / N38 - cylindrical magnet

MPL 100x40x20 / N38 - lamellar magnet

MW 15x1 / N38 - cylindrical magnet

UMH 25x8x45 [M5] / N38 - magnetic holder with hook

Strengths as well as weaknesses of neodymium magnets.

Benefits

Weaknesses

Pull force analysis

Maximum lifting force for a neodymium magnet – what affects it?

Practical aspects of lifting capacity – factors

Safe handling of NdFeB magnets

Allergic reactions

Threat to electronics

Do not give to children

ICD Warning

Risk of cracking

Pinching danger

Flammability

Handling rules

GPS Danger

Do not overheat magnets

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (pull vs distance) - interaction chart
MW 5x30 / N38

Table 2: Sliding load (vertical surface)
MW 5x30 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MW 5x30 / N38

Table 4: Steel thickness (saturation) - sheet metal selection
MW 5x30 / N38

Table 5: Thermal stability (stability) - thermal limit
MW 5x30 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field range
MW 5x30 / N38

Table 7: Safety (HSE) (electronics) - precautionary measures
MW 5x30 / N38

Table 8: Impact energy (kinetic energy) - warning
MW 5x30 / N38

Table 9: Anti-corrosion coating durability
MW 5x30 / N38

Table 10: Electrical data (P_c)
MW 5x30 / N38

Table 11: Hydrostatics and buoyancy
MW 5x30 / N38