Product available Ships tomorrow

MW 15x4 / 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 010030

GTIN/EAN: 5906301810292

5.00

Diameter Ø

15 mm [±0,1 mm]

Height

4 mm [±0,1 mm]

Weight

5.3 g

Magnetization Direction

↑ axial

Load capacity

4.22 kg / 41.38 N

Magnetic Induction

291.60 mT / 2916 Gs

Coating

[NiCuNi] Nickel

check specifications »

1.968 ZŁ with VAT / pcs + price for transport

1.600 ZŁ net + 23% VAT / pcs

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Pick up the phone and ask +48 22 499 98 98 if you prefer send us a note by means of our online form our website.
Lifting power as well as appearance of neodymium magnets can be tested on our power calculator.

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Detailed specification - MW 15x4 / N38 - cylindrical magnet

Specification / characteristics - MW 15x4 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010030
GTIN/EAN	5906301810292
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	15 mm [±0,1 mm]
Height	4 mm [±0,1 mm]
Weight	5.3 g
Magnetization Direction	↑ axial
Load capacity ~ ?	4.22 kg / 41.38 N
Magnetic Induction ~ ?	291.60 mT / 2916 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 15x4 / 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 modeling of the product - technical parameters

Presented data constitute the outcome of a physical simulation. Values were calculated on models for the material Nd₂Fe₁₄B. Actual conditions might slightly differ from theoretical values. Use these calculations as a reference point during assembly planning.

Table 1: Static pull force (pull vs gap) - power drop
MW 15x4 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	2915 Gs 291.5 mT	4.22 kg / 9.30 pounds 4220.0 g / 41.4 N	strong
1 mm	2620 Gs 262.0 mT	3.41 kg / 7.51 pounds 3408.2 g / 33.4 N	strong
2 mm	2276 Gs 227.6 mT	2.57 kg / 5.67 pounds 2571.6 g / 25.2 N	strong
3 mm	1928 Gs 192.8 mT	1.85 kg / 4.07 pounds 1845.5 g / 18.1 N	weak grip
5 mm	1324 Gs 132.4 mT	0.87 kg / 1.92 pounds 870.3 g / 8.5 N	weak grip
10 mm	505 Gs 50.5 mT	0.13 kg / 0.28 pounds 126.7 g / 1.2 N	weak grip
15 mm	222 Gs 22.2 mT	0.02 kg / 0.05 pounds 24.4 g / 0.2 N	weak grip
20 mm	113 Gs 11.3 mT	0.01 kg / 0.01 pounds 6.3 g / 0.1 N	weak grip
30 mm	40 Gs 4.0 mT	0.00 kg / 0.00 pounds 0.8 g / 0.0 N	weak grip
50 mm	10 Gs 1.0 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	weak grip

Pulling power weakens significantly per each millimeter of spacing. Note that even the smallest gap (e.g., dirt, paint, veneer) strongly weakens the grip. Magnetic products operate strongest during direct contact; gap drastically cuts the power. See how flashily the pull force fall, when the magnet does not adhere tightly to the steel surface. When planning the mounting, discard redundant distances.

Table 2: Shear capacity (vertical surface)
MW 15x4 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.84 kg / 1.86 pounds 844.0 g / 8.3 N
1 mm	Stal (~0.2)	0.68 kg / 1.50 pounds 682.0 g / 6.7 N
2 mm	Stal (~0.2)	0.51 kg / 1.13 pounds 514.0 g / 5.0 N
3 mm	Stal (~0.2)	0.37 kg / 0.82 pounds 370.0 g / 3.6 N
5 mm	Stal (~0.2)	0.17 kg / 0.38 pounds 174.0 g / 1.7 N
10 mm	Stal (~0.2)	0.03 kg / 0.06 pounds 26.0 g / 0.3 N
15 mm	Stal (~0.2)	0.00 kg / 0.01 pounds 4.0 g / 0.0 N
20 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 2.0 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 following data indicates the theoretical holding capacity sufficient to cause the shifting of the magnet vertically on a vertical metal surface (assuming typical friction). This value is relative to the air gap between the magnet and the metal.

Table 3: Vertical assembly (sliding) - vertical pull
MW 15x4 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	1.27 kg / 2.79 pounds 1266.0 g / 12.4 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.84 kg / 1.86 pounds 844.0 g / 8.3 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.42 kg / 0.93 pounds 422.0 g / 4.1 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	2.11 kg / 4.65 pounds 2110.0 g / 20.7 N

When hanging a magnet on a vertical plane (e.g., a car body), it will maintain just approx. 1/5 of its maximum pull force. Gravitational force as well as a weak degree of grip mean that magnets move down faster than they detach. Want to create a wall mount? Consider that the sliding force is significantly lower than the perpendicular breakaway force. On a smooth steel, the magnet will slide down under a much lighter weight. Using a rubber coating can significantly raise the stability.

Table 4: Steel thickness (saturation) - power losses
MW 15x4 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.42 kg / 0.93 pounds 422.0 g / 4.1 N
1 mm	25%	1.06 kg / 2.33 pounds 1055.0 g / 10.3 N
2 mm	50%	2.11 kg / 4.65 pounds 2110.0 g / 20.7 N
3 mm	75%	3.17 kg / 6.98 pounds 3165.0 g / 31.0 N
5 mm	100%	4.22 kg / 9.30 pounds 4220.0 g / 41.4 N
10 mm	100%	4.22 kg / 9.30 pounds 4220.0 g / 41.4 N
11 mm	100%	4.22 kg / 9.30 pounds 4220.0 g / 41.4 N
12 mm	100%	4.22 kg / 9.30 pounds 4220.0 g / 41.4 N

A too thin steel cannot focus the entire magnetic field, which squanders power of the holder. Should you install a neodymium to a thin surface, the magnetism will pass right through and the attraction force will be weaker. To achieve 100% of this magnet's potential, you require a sufficiently solid element of metal. The saturation effect causes that on thin elements (e.g., car bodies), the magnet holds weaker. We advise picking the steel cross-section according to the table below.

Table 5: Thermal stability (material behavior) - thermal limit
MW 15x4 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	4.22 kg / 9.30 pounds 4220.0 g / 41.4 N	OK
40 °C	-2.2%	4.13 kg / 9.10 pounds 4127.2 g / 40.5 N	OK
60 °C	-4.4%	4.03 kg / 8.89 pounds 4034.3 g / 39.6 N
80 °C	-6.6%	3.94 kg / 8.69 pounds 3941.5 g / 38.7 N
100 °C	-28.8%	3.00 kg / 6.62 pounds 3004.6 g / 29.5 N

Classic neodymiums irreversibly lose parameters above the temperature limit. Avoid high temperatures – high temperature can irreversibly damage this magnet. As the temperature rises, the magnet's force temporarily decreases. Refrain from using this magnet near heat sources higher than its safe range. Too high temperature will result in destruction of magnetic properties.

*Technical advisory: Heat tolerance is determined by both grade, and the Permeance Coefficient Pc. Flat magnets (low permeance coefficient) are more susceptible to demagnetization sooner than long magnets. The danger warning in the table points to permanent field degradation for this particular item.

Table 6: Two magnets (attraction) - field collision
MW 15x4 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	9.26 kg / 20.41 pounds 4 518 Gs	1.39 kg / 3.06 pounds 1389 g / 13.6 N	N/A
1 mm	8.40 kg / 18.53 pounds 5 555 Gs	1.26 kg / 2.78 pounds 1261 g / 12.4 N	7.56 kg / 16.68 pounds ~0 Gs
2 mm	7.48 kg / 16.48 pounds 5 239 Gs	1.12 kg / 2.47 pounds 1122 g / 11.0 N	6.73 kg / 14.84 pounds ~0 Gs
3 mm	6.54 kg / 14.42 pounds 4 901 Gs	0.98 kg / 2.16 pounds 981 g / 9.6 N	5.89 kg / 12.98 pounds ~0 Gs
5 mm	4.80 kg / 10.59 pounds 4 200 Gs	0.72 kg / 1.59 pounds 721 g / 7.1 N	4.32 kg / 9.53 pounds ~0 Gs
10 mm	1.91 kg / 4.21 pounds 2 648 Gs	0.29 kg / 0.63 pounds 286 g / 2.8 N	1.72 kg / 3.79 pounds ~0 Gs
20 mm	0.28 kg / 0.61 pounds 1 010 Gs	0.04 kg / 0.09 pounds 42 g / 0.4 N	0.25 kg / 0.55 pounds ~0 Gs
50 mm	0.00 kg / 0.01 pounds 128 Gs	0.00 kg / 0.00 pounds 1 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
60 mm	0.00 kg / 0.00 pounds 79 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 52 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 36 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 26 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 19 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs

Two magnets interact from a much further distance than a magnet and sheet setup. Such a system of magnet-to-magnet creates a more powerful interaction 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. Exercise caution that when connecting a pair of magnets, the impact force is huge. The repulsion force is marginally weaker than the attraction, but still impressive.
*Flux density for N-N configuration is approximately ~0 Gs at the midpoint between the magnets (caused by magnetic field nullification).
Note: Results show friction force of dual identical neodymium magnets (friction coefficient ~0.15 for Ni-Ni plating).

Table 7: Hazards (implants) - precautionary measures
MW 15x4 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	6.5 cm
Hearing aid	10 Gs (1.0 mT)	5.0 cm
Mechanical watch	20 Gs (2.0 mT)	4.0 cm
Mobile device	40 Gs (4.0 mT)	3.0 cm
Car key	50 Gs (5.0 mT)	3.0 cm
Payment card	400 Gs (40.0 mT)	1.5 cm
HDD hard drive	600 Gs (60.0 mT)	1.0 cm

A strong magnetic field poses a large risk to electronics as well as pacemakers. These NdFeB products produce a field that destroys function of sensitive medical devices. Be aware: the invisible magnetic field passes through tissues and housings. Increased vigilance must be exercised by people with cochlear implants and insulin pumps. The risk also applies to: automatic timepieces, remotes, speakers, and screens. Avoid contact with magnetic cards, HDD media, or sensitive navigation tools.

Table 8: Impact energy (kinetic energy) - warning
MW 15x4 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	28.99 km/h (8.05 m/s)	0.17 J
30 mm	49.30 km/h (13.69 m/s)	0.50 J
50 mm	63.63 km/h (17.68 m/s)	0.83 J
100 mm	89.99 km/h (25.00 m/s)	1.66 J

Magnetic elements are prone to chipping – a strong collision with metal risks their cracking. Watch the impact speed – a neodymium left loose turns into a projectile. Striking energy can cause material chips or painful pinches to fingers. Be sure to control the product during installation so it doesn't hit with great force against the metal. A collision at high speed almost guarantees destruction of the magnet. Wear eye protection when playing with large magnets.

Table 9: Coating parameters (durability)
MW 15x4 / 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. Note the thickness of the protective layer.

Table 10: Construction data (Flux)
MW 15x4 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	5 659 Mx	56.6 µWb
P_c Coefficient	0.37	Low (Flat)

Total magnetic flux passing through the magnet pole. Essential parameter for generator designers as well as sensors. The P_c coefficient defines the magnet's operating point.

Table 11: Hydrostatics and buoyancy
MW 15x4 / N38

Environment	Effective steel pull	Effect
Air (land)	4.22 kg	Standard
Water (riverbed)	4.83 kg (+0.61 kg buoyancy gain)	+14.5%

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. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Sliding resistance

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

2. Efficiency vs thickness

*Thin steel (e.g. 0.5mm PC case) drastically reduces the holding force.

3. Power loss vs temp

*For N38 grade, the critical limit is 80°C.

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.37

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 specification and ecology

Material specification

iron (Fe)	64% – 68%
neodymium (Nd)	29% – 32%
boron (B)	1.1% – 1.2%
dysprosium (Dy)	0.5% – 2.0%
coating (Ni-Cu-Ni)	< 0.05%

Ecology and recycling (GPSR)

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: 010030-2026

Measurement Calculator

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The presented product is an extremely powerful cylindrical magnet, made from modern NdFeB material, which, with dimensions of Ø15x4 mm, guarantees optimal power. The MW 15x4 / N38 model boasts high dimensional repeatability and industrial build quality, making it an ideal solution for the most demanding engineers and designers. As a magnetic rod with impressive force (approx. 4.22 kg), this product is available off-the-shelf from our warehouse in Poland, ensuring rapid order fulfillment. Moreover, its Ni-Cu-Ni coating shields it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.

This model is created for building generators, advanced sensors, and efficient filters, where maximum induction on a small surface counts. Thanks to the high power of 41.38 N with a weight of only 5.3 g, this rod is indispensable in electronics 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 immediate cracking 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 N38 are strong enough 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 (Ø15x4), 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 Ø15x4 mm, which, at a weight of 5.3 g, makes it an element with high magnetic energy density. The key parameter here is the holding force amounting to approximately 4.22 kg (force ~41.38 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.

This cylinder is magnetized axially (along the height of 4 mm), which means that the N and S poles are located on the flat, circular surfaces. 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.

Advantages as well as disadvantages of rare earth magnets.

Pros

Besides their tremendous magnetic power, neodymium magnets offer the following advantages:

They virtually do not lose strength, because even after 10 years the decline in efficiency is only ~1% (in laboratory conditions),
Magnets very well resist against demagnetization caused by external fields,
A magnet with a shiny gold surface has better aesthetics,
The surface of neodymium magnets generates a strong magnetic field – this is a distinguishing feature,
Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can work (depending on the form) even at a temperature of 230°C or more...
In view of the potential of flexible forming and customization to individualized needs, magnetic components can be created in a wide range of forms and dimensions, which increases their versatility,
Significant place in modern industrial fields – they find application in data components, drive modules, medical equipment, and multitasking production systems.
Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in tiny dimensions, which enables their usage in miniature devices

Weaknesses

Disadvantages of NdFeB magnets:

Brittleness is one of their disadvantages. Upon strong impact they can break. We advise keeping them in a special holder, which not only protects them against impacts but also increases their durability
Neodymium magnets lose power when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of strength (a factor is the shape as well as dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely resistant to heat
When exposed to humidity, magnets usually rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which prevent oxidation as well as corrosion.
Limited ability of producing nuts in the magnet and complex forms - recommended is a housing - magnetic holder.
Health risk to health – tiny shards of magnets are risky, in case of ingestion, which becomes key in the context of child safety. Furthermore, small components of these devices are able to be problematic in diagnostics medical after entering the body.
With mass production the cost of neodymium magnets can be a barrier,

Lifting parameters

Maximum magnetic pulling force – what contributes to it?

The lifting capacity listed is a measurement result performed under standard conditions:

on a base made of structural steel, perfectly concentrating the magnetic field
possessing a thickness of at least 10 mm to ensure full flux closure
characterized by lack of roughness
with zero gap (without impurities)
under perpendicular force vector (90-degree angle)
in neutral thermal conditions

Impact of factors on magnetic holding capacity in practice

Real force is influenced by working environment parameters, including (from most important):

Clearance – existence of foreign body (paint, tape, gap) acts as an insulator, which reduces power steeply (even by 50% at 0.5 mm).
Force direction – declared lifting capacity refers to pulling vertically. When slipping, the magnet holds significantly lower power (often approx. 20-30% of maximum force).
Wall thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field passes through the material instead of converting into lifting capacity.
Material type – the best choice is pure iron steel. Hardened steels may have worse magnetic properties.
Smoothness – ideal contact is obtained only on polished steel. Rough texture reduce the real contact area, reducing force.
Thermal environment – heating the magnet causes a temporary drop of force. Check the thermal limit for a given model.

Lifting capacity was determined using a steel plate with a smooth surface of suitable thickness (min. 20 mm), under perpendicular detachment force, however under parallel forces the load capacity is reduced by as much as 75%. In addition, even a slight gap between the magnet and the plate decreases the lifting capacity.

Safety rules for work with neodymium magnets

Protective goggles

Watch out for shards. Magnets can fracture upon uncontrolled impact, launching sharp fragments into the air. We recommend safety glasses.

Magnetic interference

A powerful magnetic field disrupts the functioning of compasses in smartphones and GPS navigation. Keep magnets close to a device to prevent breaking the sensors.

Danger to pacemakers

For implant holders: Powerful magnets disrupt electronics. Keep minimum 30 cm distance or request help to handle the magnets.

Cards and drives

Equipment safety: Strong magnets can ruin payment cards and delicate electronics (heart implants, hearing aids, mechanical watches).

Adults only

Strictly store magnets out of reach of children. Risk of swallowing is high, and the effects of magnets connecting inside the body are fatal.

Nickel coating and allergies

It is widely known that the nickel plating (the usual finish) is a common allergen. If your skin reacts to metals, prevent touching magnets with bare hands and opt for encased magnets.

Thermal limits

Regular neodymium magnets (grade N) undergo demagnetization when the temperature exceeds 80°C. This process is irreversible.

Serious injuries

Big blocks can smash fingers instantly. Under no circumstances put your hand between two attracting surfaces.

Handling guide

Before use, check safety instructions. Uncontrolled attraction can destroy the magnet or injure your hand. Be predictive.

Dust explosion hazard

Powder produced during cutting of magnets is self-igniting. Do not drill into magnets unless you are an expert.

Danger! Want to know more? Read our article: Are neodymium magnets dangerous?

MW 15x4 / N38 - cylindrical magnet

Detailed specification - MW 15x4 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering modeling of the product - technical parameters

Table 1: Static pull force (pull vs gap) - power drop MW 15x4 / N38

Table 2: Shear capacity (vertical surface) MW 15x4 / N38

Table 3: Vertical assembly (sliding) - vertical pull MW 15x4 / N38

Table 4: Steel thickness (saturation) - power losses MW 15x4 / N38

Table 5: Thermal stability (material behavior) - thermal limit MW 15x4 / N38

Table 6: Two magnets (attraction) - field collision MW 15x4 / N38

Table 7: Hazards (implants) - precautionary measures MW 15x4 / N38

Table 8: Impact energy (kinetic energy) - warning MW 15x4 / N38

Table 9: Coating parameters (durability) MW 15x4 / N38

Table 10: Construction data (Flux) MW 15x4 / N38

Table 11: Hydrostatics and buoyancy MW 15x4 / N38

1. Sliding resistance

2. Efficiency vs thickness

3. Power loss vs temp

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

Material specification

Ecology and recycling (GPSR)

Magnet pull force

Magnetic Field

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UMGZ 75x34x18 [M10] GZ / N38 - magnetic holder external thread

Advantages as well as disadvantages of rare earth magnets.

Pros

Weaknesses

Lifting parameters

Maximum magnetic pulling force – what contributes to it?

Impact of factors on magnetic holding capacity in practice

Safety rules for work with neodymium magnets

Protective goggles

Magnetic interference

Danger to pacemakers

Cards and drives

Adults only

Nickel coating and allergies

Thermal limits

Serious injuries

Handling guide

Dust explosion hazard

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (pull vs gap) - power drop
MW 15x4 / N38

Table 2: Shear capacity (vertical surface)
MW 15x4 / N38

Table 3: Vertical assembly (sliding) - vertical pull
MW 15x4 / N38

Table 4: Steel thickness (saturation) - power losses
MW 15x4 / N38

Table 5: Thermal stability (material behavior) - thermal limit
MW 15x4 / N38

Table 6: Two magnets (attraction) - field collision
MW 15x4 / N38

Table 7: Hazards (implants) - precautionary measures
MW 15x4 / N38

Table 8: Impact energy (kinetic energy) - warning
MW 15x4 / N38

Table 9: Coating parameters (durability)
MW 15x4 / N38

Table 10: Construction data (Flux)
MW 15x4 / N38

Table 11: Hydrostatics and buoyancy
MW 15x4 / N38