Product available Ships today (order by 14:00)

MW 15x5 / 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 010031

GTIN/EAN: 5906301810308

5.00

Diameter Ø

15 mm [±0,1 mm]

Height

5 mm [±0,1 mm]

Weight

6.63 g

Magnetization Direction

↑ axial

Load capacity

5.39 kg / 52.83 N

Magnetic Induction

343.70 mT / 3437 Gs

Coating

[NiCuNi] Nickel

view technical specifications »

3.20 ZŁ with VAT / pcs + price for transport

2.60 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs

2.60 ZŁ

3.20 ZŁ

price from 250 pcs

2.44 ZŁ

3.01 ZŁ

price from 1000 pcs

2.29 ZŁ

2.81 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Need help making a decision?

Call us +48 22 499 98 98 if you prefer get in touch using our online form through our site.
Strength and appearance of magnets can be tested using our modular calculator.

Same-day processing for orders placed before 14:00.

Technical details - MW 15x5 / N38 - cylindrical magnet

Specification / characteristics - MW 15x5 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010031
GTIN/EAN	5906301810308
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	5 mm [±0,1 mm]
Weight	6.63 g
Magnetization Direction	↑ axial
Load capacity ~ ?	5.39 kg / 52.83 N
Magnetic Induction ~ ?	343.70 mT / 3437 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 15x5 / 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 assembly - data

These information constitute the direct effect of a physical calculation. Results were calculated on models for the class Nd₂Fe₁₄B. Operational parameters might slightly differ from theoretical values. Use these data as a reference point during assembly planning.

Table 1: Static force (force vs gap) - interaction chart
MW 15x5 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	3436 Gs 343.6 mT	5.39 kg / 11.88 pounds 5390.0 g / 52.9 N	warning
1 mm	3054 Gs 305.4 mT	4.26 kg / 9.39 pounds 4258.2 g / 41.8 N	warning
2 mm	2633 Gs 263.3 mT	3.17 kg / 6.98 pounds 3165.4 g / 31.1 N	warning
3 mm	2221 Gs 222.1 mT	2.25 kg / 4.96 pounds 2251.5 g / 22.1 N	warning
5 mm	1521 Gs 152.1 mT	1.06 kg / 2.33 pounds 1056.2 g / 10.4 N	weak grip
10 mm	585 Gs 58.5 mT	0.16 kg / 0.35 pounds 156.5 g / 1.5 N	weak grip
15 mm	260 Gs 26.0 mT	0.03 kg / 0.07 pounds 30.8 g / 0.3 N	weak grip
20 mm	133 Gs 13.3 mT	0.01 kg / 0.02 pounds 8.1 g / 0.1 N	weak grip
30 mm	47 Gs 4.7 mT	0.00 kg / 0.00 pounds 1.0 g / 0.0 N	weak grip
50 mm	12 Gs 1.2 mT	0.00 kg / 0.00 pounds 0.1 g / 0.0 N	weak grip

Magnetic force drops drastically with every mm of gap. Note that even a microscopic distance (e.g., contamination, varnish, dust) strongly diminishes the holding power. Magnets work most effectively during direct contact; gap nullifies the power. See how rapidly the pull force fall, when the magnet does not adhere flatly to the steel surface. When planning the mounting, eliminate redundant distances.

Table 2: Sliding capacity (wall)
MW 15x5 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	1.08 kg / 2.38 pounds 1078.0 g / 10.6 N
1 mm	Stal (~0.2)	0.85 kg / 1.88 pounds 852.0 g / 8.4 N
2 mm	Stal (~0.2)	0.63 kg / 1.40 pounds 634.0 g / 6.2 N
3 mm	Stal (~0.2)	0.45 kg / 0.99 pounds 450.0 g / 4.4 N
5 mm	Stal (~0.2)	0.21 kg / 0.47 pounds 212.0 g / 2.1 N
10 mm	Stal (~0.2)	0.03 kg / 0.07 pounds 32.0 g / 0.3 N
15 mm	Stal (~0.2)	0.01 kg / 0.01 pounds 6.0 g / 0.1 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 presents the theoretical shear load required to initiate the downward movement of the magnet downwards on a upright steel plate (considering typical friction coefficient). The holding force is a function of the air gap between the magnet and the surface.

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 15x5 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	1.62 kg / 3.56 pounds 1617.0 g / 15.9 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	1.08 kg / 2.38 pounds 1078.0 g / 10.6 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.54 kg / 1.19 pounds 539.0 g / 5.3 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	2.70 kg / 5.94 pounds 2695.0 g / 26.4 N

When hanging a element on a upright plane (e.g., a board), it will only hold only approx. 20%-30% of its nominal power. Gravity and a low friction coefficient cause that magnets slide down easier than they pop off the substrate. Designing a hanger? Consider that the sliding force is noticeably lower than the maximum static pull force. On a painted metal, the holder will give way down under a much lighter load. Using a rubber layer can significantly raise the stability.

Table 4: Steel thickness (saturation) - sheet metal selection
MW 15x5 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.54 kg / 1.19 pounds 539.0 g / 5.3 N
1 mm	25%	1.35 kg / 2.97 pounds 1347.5 g / 13.2 N
2 mm	50%	2.70 kg / 5.94 pounds 2695.0 g / 26.4 N
3 mm	75%	4.04 kg / 8.91 pounds 4042.5 g / 39.7 N
5 mm	100%	5.39 kg / 11.88 pounds 5390.0 g / 52.9 N
10 mm	100%	5.39 kg / 11.88 pounds 5390.0 g / 52.9 N
11 mm	100%	5.39 kg / 11.88 pounds 5390.0 g / 52.9 N
12 mm	100%	5.39 kg / 11.88 pounds 5390.0 g / 52.9 N

A too thin steel is incapable of absorb the entire magnetic field, which squanders power of the magnet. If you attach a powerful product to a thin surface, the flux will pass right through and the attraction force will be weaker. To squeeze 100% of this neodymium's power, you need a suitably thick piece of steel. The material oversaturation causes that on thin elements (e.g., thin profiles), the magnet holds weaker. We recommend selecting the steel dimension based on the following data.

Table 5: Working in heat (material behavior) - resistance threshold
MW 15x5 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	5.39 kg / 11.88 pounds 5390.0 g / 52.9 N	OK
40 °C	-2.2%	5.27 kg / 11.62 pounds 5271.4 g / 51.7 N	OK
60 °C	-4.4%	5.15 kg / 11.36 pounds 5152.8 g / 50.5 N
80 °C	-6.6%	5.03 kg / 11.10 pounds 5034.3 g / 49.4 N
100 °C	-28.8%	3.84 kg / 8.46 pounds 3837.7 g / 37.6 N

Standard neodymium magnets lose strength above the temperature limit. Protect against heat – excessive heat can irreversibly damage this magnet. With every degree above norm, the neodymium's capacity briefly drops. Avoid using this magnet in hot environments exceeding its working range. Exceeding the critical threshold will lead to permanent loss of magnetic properties.

*Technical advisory: Temperature resistance depends not only on the material grade, but also on the magnet's shape. Thin magnets (pancake types) may lose charge permanently under lower heat stress than taller cylinders. Red status in the table indicates a risk of irreversible loss for this particular item.

Table 6: Two magnets (attraction) - field collision
MW 15x5 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	12.86 kg / 28.35 pounds 4 954 Gs	1.93 kg / 4.25 pounds 1929 g / 18.9 N	N/A
1 mm	11.54 kg / 25.43 pounds 6 508 Gs	1.73 kg / 3.81 pounds 1730 g / 17.0 N	10.38 kg / 22.89 pounds ~0 Gs
2 mm	10.16 kg / 22.40 pounds 6 107 Gs	1.52 kg / 3.36 pounds 1524 g / 14.9 N	9.14 kg / 20.16 pounds ~0 Gs
3 mm	8.82 kg / 19.44 pounds 5 689 Gs	1.32 kg / 2.92 pounds 1322 g / 13.0 N	7.93 kg / 17.49 pounds ~0 Gs
5 mm	6.40 kg / 14.11 pounds 4 847 Gs	0.96 kg / 2.12 pounds 960 g / 9.4 N	5.76 kg / 12.70 pounds ~0 Gs
10 mm	2.52 kg / 5.56 pounds 3 042 Gs	0.38 kg / 0.83 pounds 378 g / 3.7 N	2.27 kg / 5.00 pounds ~0 Gs
20 mm	0.37 kg / 0.82 pounds 1 171 Gs	0.06 kg / 0.12 pounds 56 g / 0.5 N	0.34 kg / 0.74 pounds ~0 Gs
50 mm	0.01 kg / 0.01 pounds 153 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 / 0.01 pounds 95 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 63 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 44 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 32 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 23 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. The connection of magnet-to-magnet generates a stronger field and a larger range of operation. Designing a strong closure? Apply two magnets instead of one magnet and a striker plate. Remember that when connecting a pair of magnets, the pinch force is huge. The repulsion force is slightly lower than the connection force, but still impressive.
*Flux density in repulsion mode reaches ~0 Gs at the geometric center of the gap (due to field cancellation).
* Figures refer to shear force of two identical magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Hazards (implants) - precautionary measures
MW 15x5 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	7.0 cm
Hearing aid	10 Gs (1.0 mT)	5.5 cm
Timepiece	20 Gs (2.0 mT)	4.5 cm
Phone / Smartphone	40 Gs (4.0 mT)	3.5 cm
Remote	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

Extremely neodym field is a large risk to electronics as well as medical implants. These magnets generate a flux that destroys function of digital equipment. Remember: the unseen radiation passes through tissues and housings. Increased vigilance must be taken by people with hearing aids and insulin pumps. Also at risk are: automatic timepieces, car keys, membranes, and screens. Avoid contact with magnetic cards, HDD media, or sensitive navigation tools.

Table 8: Collisions (cracking risk) - collision effects
MW 15x5 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	29.27 km/h (8.13 m/s)	0.22 J
30 mm	49.81 km/h (13.84 m/s)	0.63 J
50 mm	64.30 km/h (17.86 m/s)	1.06 J
100 mm	90.93 km/h (25.26 m/s)	2.12 J

NdFeB products are very brittle – a violent impact against metal risks their cracking. Pay attention to connection velocity – a magnet released freely turns into a projectile. Striking energy can cause material chips or painful pinches to skin. Always hold the magnet during bringing near metal so it doesn't slam with momentum against the metal. A collision at high speed means shattering of the neodymium. Use safety goggles when playing with large magnets.

Table 9: Coating parameters (durability)
MW 15x5 / 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 SST (salt spray test) is an industry standard for determining coating lifespan in harsh conditions. Note the thickness of the protective layer.

Table 10: Electrical data (P_c)
MW 15x5 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	6 428 Mx	64.3 µWb
P_c Coefficient	0.44	Low (Flat)

Total magnetic flux passing through the pole surface. Key data in coil applications as well as sensors. The P_c coefficient defines the magnet's operating point.

Table 11: Hydrostatics and buoyancy
MW 15x5 / N38

Environment	Effective steel pull	Effect
Air (land)	5.39 kg	Standard
Water (riverbed)	6.17 kg (+0.78 kg buoyancy gain)	+14.5%

Warning: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.

The magnetic field penetrates through water without any losses. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Sliding resistance

*Caution: On a vertical surface, the magnet retains merely a fraction of its nominal pull.

2. Steel saturation

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

3. Heat tolerance

*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) = 0.44

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 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: 010031-2026

Quick Unit Converter

Force (pull)

Newtons (N)

Force in lbs

Magnetic Field

Tesla (T)

Simply populate a single box, to let the converter fill in everything else for you.

View also products

Product available Ships today (order by 14:00)

UMT 12x20 black / N38 - board holder

1.894 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

MW 38x15 / N38 - cylindrical magnet

70.00 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

MPL 25x25x10 / N38 - lamellar magnet

20.29 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

UMP 75x25 [M10x3] GW F200 GOLD / N42 - search holder

150.00 ZŁ brutto / pcs

This product is an extremely powerful rod magnet, manufactured from advanced NdFeB material, which, with dimensions of Ø15x5 mm, guarantees maximum efficiency. The MW 15x5 / N38 component boasts an accuracy of ±0.1mm and professional build quality, making it an ideal solution for professional engineers and designers. As a cylindrical magnet with significant force (approx. 5.39 kg), this product is in stock from our warehouse in Poland, ensuring rapid 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.

It successfully proves itself in DIY projects, advanced robotics, and broadly understood industry, serving as a fastening or actuating element. Thanks to the high power of 52.83 N with a weight of only 6.63 g, this cylindrical magnet is indispensable in electronics and wherever low weight is crucial.

Due to the brittleness of the NdFeB material, we absolutely advise against force-fitting (so-called press-fit), as this risks immediate cracking of this professional component. To ensure stability in industry, anaerobic resins are used, which are safe for nickel and fill the gap, guaranteeing durability of the connection.

Magnets NdFeB grade N38 are suitable for 90% of applications in modeling and machine building, where excessive miniaturization with maximum force is not required. If you need even stronger magnets in the same volume (Ø15x5), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our warehouse.

This model is characterized by dimensions Ø15x5 mm, which, at a weight of 6.63 g, makes it an element with high magnetic energy density. The value of 52.83 N means that the magnet is capable of holding a weight many times exceeding its own mass of 6.63 g. The product has a [NiCuNi] coating, which protects the surface against oxidation, 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 15 mm. 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 diametrically if your project requires it.

Pros and cons of Nd₂Fe₁₄B magnets.

Pros

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

They do not lose strength, even over nearly ten years – the drop in lifting capacity is only ~1% (according to tests),
They maintain their magnetic properties even under strong external field,
The use of an elegant layer of noble metals (nickel, gold, silver) causes the element to look better,
They are known for high magnetic induction at the operating surface, making them more effective,
Thanks to resistance to high temperature, they are capable of working (depending on the form) even at temperatures up to 230°C and higher...
Possibility of custom machining and adjusting to atypical applications,
Universal use in future technologies – they are utilized in HDD drives, electric drive systems, medical equipment, as well as multitasking production systems.
Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in tiny dimensions, which makes them useful in small systems

Limitations

Cons of neodymium magnets: application proposals

Brittleness is one of their disadvantages. Upon intense impact they can break. We advise keeping them in a strong case, which not only secures them against impacts but also raises their durability
We warn that neodymium magnets can lose their power at high temperatures. To prevent this, we recommend our specialized [AH] magnets, which work effectively even at 230°C.
Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material resistant to moisture, in case of application outdoors
Due to limitations in realizing threads and complex shapes in magnets, we propose using casing - magnetic holder.
Possible danger related to microscopic parts of magnets pose a threat, in case of ingestion, which gains importance in the aspect of protecting the youngest. Additionally, small elements of these products are able to be problematic in diagnostics medical when they are in the body.
With large orders the cost of neodymium magnets is economically unviable,

Holding force characteristics

Breakaway strength of the magnet in ideal conditions – what it depends on?

Holding force of 5.39 kg is a result of laboratory testing executed under specific, ideal conditions:

with the contact of a yoke made of low-carbon steel, ensuring full magnetic saturation
with a cross-section no less than 10 mm
with a surface free of scratches
without the slightest insulating layer between the magnet and steel
under axial force vector (90-degree angle)
at conditions approx. 20°C

Determinants of lifting force in real conditions

It is worth knowing that the magnet holding will differ subject to elements below, starting with the most relevant:

Gap between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by veneer or unevenness) diminishes the magnet efficiency, often by half at just 0.5 mm.
Pull-off angle – remember that the magnet holds strongest perpendicularly. Under shear forces, the holding force drops significantly, often to levels of 20-30% of the nominal value.
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 type – the best choice is pure iron steel. Stainless steels may generate lower lifting capacity.
Surface finish – ideal contact is obtained only on polished steel. Rough texture reduce the real contact area, reducing force.
Operating temperature – neodymium magnets have a sensitivity to temperature. At higher temperatures they lose power, and in frost gain strength (up to a certain limit).

Lifting capacity was assessed using a steel plate with a smooth surface of optimal thickness (min. 20 mm), under perpendicular detachment force, however under attempts to slide the magnet the lifting capacity is smaller. Additionally, even a slight gap between the magnet’s surface and the plate decreases the lifting capacity.

Precautions when working with NdFeB magnets

Material brittleness

Protect your eyes. Magnets can fracture upon violent connection, ejecting shards into the air. Wear goggles.

GPS and phone interference

Navigation devices and smartphones are extremely susceptible to magnetism. Direct contact with a powerful NdFeB magnet can permanently damage the sensors in your phone.

Power loss in heat

Avoid heat. Neodymium magnets are susceptible to heat. If you require operation above 80°C, look for HT versions (H, SH, UH).

Machining danger

Combustion risk: Neodymium dust is highly flammable. Do not process magnets in home conditions as this risks ignition.

Life threat

Medical warning: Neodymium magnets can turn off pacemakers and defibrillators. Stay away if you have medical devices.

Hand protection

Big blocks can crush fingers instantly. Do not put your hand betwixt two attracting surfaces.

Respect the power

Be careful. Rare earth magnets act from a distance and snap with huge force, often quicker than you can react.

Nickel coating and allergies

It is widely known that nickel (the usual finish) is a common allergen. If you have an allergy, avoid touching magnets with bare hands or opt for coated magnets.

Electronic hazard

Data protection: Strong magnets can ruin data carriers and delicate electronics (pacemakers, medical aids, timepieces).

Product not for children

Adult use only. Tiny parts can be swallowed, causing serious injuries. Keep away from kids and pets.

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

MW 15x5 / N38 - cylindrical magnet

Technical details - MW 15x5 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical modeling of the assembly - data

Table 1: Static force (force vs gap) - interaction chart MW 15x5 / N38

Table 2: Sliding capacity (wall) MW 15x5 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces MW 15x5 / N38

Table 4: Steel thickness (saturation) - sheet metal selection MW 15x5 / N38

Table 5: Working in heat (material behavior) - resistance threshold MW 15x5 / N38

Table 6: Two magnets (attraction) - field collision MW 15x5 / N38

Table 7: Hazards (implants) - precautionary measures MW 15x5 / N38

Table 8: Collisions (cracking risk) - collision effects MW 15x5 / N38

Table 9: Coating parameters (durability) MW 15x5 / N38

Table 10: Electrical data (Pc) MW 15x5 / N38

Table 11: Hydrostatics and buoyancy MW 15x5 / N38

1. Sliding resistance

2. Steel saturation

3. Heat tolerance

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

Material specification

Ecology and recycling (GPSR)

Force (pull)

Magnetic Field

View also products

UMT 12x20 black / N38 - board holder

MW 38x15 / N38 - cylindrical magnet

MPL 25x25x10 / N38 - lamellar magnet

UMP 75x25 [M10x3] GW F200 GOLD / N42 - search holder

Pros and cons of Nd2Fe14B magnets.

Pros

Limitations

Holding force characteristics

Breakaway strength of the magnet in ideal conditions – what it depends on?

Determinants of lifting force in real conditions

Precautions when working with NdFeB magnets

Material brittleness

GPS and phone interference

Power loss in heat

Machining danger

Life threat

Hand protection

Respect the power

Nickel coating and allergies

Electronic hazard

Product not for children

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs gap) - interaction chart
MW 15x5 / N38

Table 2: Sliding capacity (wall)
MW 15x5 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 15x5 / N38

Table 4: Steel thickness (saturation) - sheet metal selection
MW 15x5 / N38

Table 5: Working in heat (material behavior) - resistance threshold
MW 15x5 / N38

Table 6: Two magnets (attraction) - field collision
MW 15x5 / N38

Table 7: Hazards (implants) - precautionary measures
MW 15x5 / N38

Table 8: Collisions (cracking risk) - collision effects
MW 15x5 / N38

Table 9: Coating parameters (durability)
MW 15x5 / N38

Table 10: Electrical data (P_c)
MW 15x5 / N38

Table 11: Hydrostatics and buoyancy
MW 15x5 / N38

Pros and cons of Nd₂Fe₁₄B magnets.