Product available Ships tomorrow

MW 5x15 / 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: 1-6500
Rating: 5

cylindrical magnet

Catalog no 010084

GTIN/EAN: 5906301810834

5.00

Diameter Ø

5 mm [±0,1 mm]

Height

15 mm [±0,1 mm]

Weight

2.21 g

Magnetization Direction

↑ axial

Load capacity

0.48 kg / 4.68 N

Magnetic Induction

610.03 mT / 6100 Gs

Coating

[NiCuNi] Nickel

see properties »

1.107 ZŁ with VAT / pcs + price for transport

0.900 ZŁ net + 23% VAT / pcs

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Technical parameters - MW 5x15 / N38 - cylindrical magnet

Specification / characteristics - MW 5x15 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010084
GTIN/EAN	5906301810834
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	15 mm [±0,1 mm]
Weight	2.21 g
Magnetization Direction	↑ axial
Load capacity ~ ?	0.48 kg / 4.68 N
Magnetic Induction ~ ?	610.03 mT / 6100 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 5x15 / 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 product - report

Presented information represent the direct effect of a mathematical analysis. Results were calculated on algorithms for the class Nd₂Fe₁₄B. Operational performance might slightly differ from theoretical values. Treat these calculations as a supplementary guide during assembly planning.

Table 1: Static pull force (force vs distance) - interaction chart
MW 5x15 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg)	Risk Status
0 mm	6091 Gs 609.1 mT	0.48 kg / 480.0 g 4.7 N	weak grip
1 mm	3823 Gs 382.3 mT	0.19 kg / 189.1 g 1.9 N	weak grip
2 mm	2261 Gs 226.1 mT	0.07 kg / 66.1 g 0.6 N	weak grip
3 mm	1378 Gs 137.8 mT	0.02 kg / 24.6 g 0.2 N	weak grip
5 mm	607 Gs 60.7 mT	0.00 kg / 4.8 g 0.0 N	weak grip
10 mm	154 Gs 15.4 mT	0.00 kg / 0.3 g 0.0 N	weak grip
15 mm	63 Gs 6.3 mT	0.00 kg / 0.1 g 0.0 N	weak grip
20 mm	32 Gs 3.2 mT	0.00 kg / 0.0 g 0.0 N	weak grip
30 mm	12 Gs 1.2 mT	0.00 kg / 0.0 g 0.0 N	weak grip
50 mm	3 Gs 0.3 mT	0.00 kg / 0.0 g 0.0 N	weak grip

Grip strength drops significantly with every mm of distance. Keep in mind that even a very thin break (e.g., contamination, varnish, rust) significantly weakens the grip. Magnets operate strongest at the point of direct contact; distance weakens the force. Notice how flashily the pull force fall, when the magnet does not adhere tightly to the metal substrate. When planning the arrangement, avoid unnecessary gaps.

Table 2: Slippage hold (vertical surface)
MW 5x15 / N38

Distance (mm)	Friction coefficient	Pull Force (kg)
0 mm	Stal (~0.2)	0.10 kg / 96.0 g 0.9 N
1 mm	Stal (~0.2)	0.04 kg / 38.0 g 0.4 N
2 mm	Stal (~0.2)	0.01 kg / 14.0 g 0.1 N
3 mm	Stal (~0.2)	0.00 kg / 4.0 g 0.0 N
5 mm	Stal (~0.2)	0.00 kg / 0.0 g 0.0 N
10 mm	Stal (~0.2)	0.00 kg / 0.0 g 0.0 N
15 mm	Stal (~0.2)	0.00 kg / 0.0 g 0.0 N
20 mm	Stal (~0.2)	0.00 kg / 0.0 g 0.0 N
30 mm	Stal (~0.2)	0.00 kg / 0.0 g 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.0 g 0.0 N

The following data shows the theoretical holding capacity needed to cause the downward movement of the magnet down against a upright steel plate (assuming typical friction). This value is a function of the gap size between the magnet and the surface.

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MW 5x15 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.14 kg / 144.0 g 1.4 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.10 kg / 96.0 g 0.9 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.05 kg / 48.0 g 0.5 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.24 kg / 240.0 g 2.4 N

When mounting a element on a vertical plane (e.g., a car body), it will only hold only about 1/5 of its nominal power. Gravity and a weak degree of grip mean that products slide down easier than they detach. Want to create a hanger? Note that the shear force is significantly lower than the perpendicular breakaway force. On a painted metal, the magnet will slide down under a significantly smaller weight. Application of an anti-slip layer can significantly raise the stability.

Table 4: Steel thickness (saturation) - power losses
MW 5x15 / N38

Steel thickness (mm)	% power	Real pull force (kg)
0.5 mm	10%	0.05 kg / 48.0 g 0.5 N
1 mm	25%	0.12 kg / 120.0 g 1.2 N
2 mm	50%	0.24 kg / 240.0 g 2.4 N
5 mm	100%	0.48 kg / 480.0 g 4.7 N
10 mm	100%	0.48 kg / 480.0 g 4.7 N

A thin sheet cannot conduct the full magnetic flux, which wastes potential of the holder. Should you attach a powerful product to a thin surface, the field will pass right through and the attraction force will be weaker. To squeeze full efficiency of this neodymium's potential, you require a sufficiently solid element of metal. The material oversaturation causes that on thin elements (e.g., thin profiles), the magnet works worse. We advise picking the steel thickness based on the following data.

Table 5: Working in heat (stability) - resistance threshold
MW 5x15 / N38

Ambient temp. (°C)	Power loss	Remaining pull	Status
20 °C	0.0%	0.48 kg / 480.0 g 4.7 N	OK
40 °C	-2.2%	0.47 kg / 469.4 g 4.6 N	OK
60 °C	-4.4%	0.46 kg / 458.9 g 4.5 N	OK
80 °C	-6.6%	0.45 kg / 448.3 g 4.4 N
100 °C	-28.8%	0.34 kg / 341.8 g 3.4 N

Standard neodymium magnets lose parameters after exceeding the maximum temperature. Avoid high temperatures – heat can permanently demagnetize this magnet. As the temperature rises, the magnet's power temporarily drops. Do not use this magnet close to ovens higher than its safe range. Too high temperature will result in destruction of magnetic properties.

*Important note: Temperature resistance is determined by both grade, and the Permeance Coefficient Pc. Flat magnets (low Pc) are more susceptible to demagnetization at lower temperatures than long magnets. Red status in the table indicates permanent field degradation for this specific geometry.

Table 6: Magnet-Magnet interaction (repulsion) - forces in the system
MW 5x15 / N38

Gap (mm)	Attraction (kg) (N-S)	Repulsion (kg) (N-N)
0 mm	4.49 kg / 4491 g 44.1 N 6 154 Gs	N/A
1 mm	2.91 kg / 2912 g 28.6 N 9 810 Gs	2.62 kg / 2621 g 25.7 N ~0 Gs
2 mm	1.77 kg / 1769 g 17.4 N 7 646 Gs	1.59 kg / 1592 g 15.6 N ~0 Gs
3 mm	1.05 kg / 1046 g 10.3 N 5 880 Gs	0.94 kg / 942 g 9.2 N ~0 Gs
5 mm	0.37 kg / 372 g 3.7 N 3 507 Gs	0.34 kg / 335 g 3.3 N ~0 Gs
10 mm	0.04 kg / 45 g 0.4 N 1 213 Gs	0.04 kg / 40 g 0.4 N ~0 Gs
20 mm	0.00 kg / 3 g 0.0 N 309 Gs	0.00 kg / 0 g 0.0 N ~0 Gs
50 mm	0.00 kg / 0 g 0.0 N 37 Gs	0.00 kg / 0 g 0.0 N ~0 Gs

Two magnets attract each other from a much further distance than a magnet and sheet combination. The connection of magnet-to-magnet generates a stronger field and a wider radius of action. Want to build a solid fastener? Utilize two neodymiums instead of one magnet and a striker plate. Exercise caution that when attracting two neodymiums, the collision energy is extreme. The levitation is marginally weaker than the connection force, but still significant.
*Field value between like poles is approximately ~0 Gs in the exact middle of the gap (caused by magnetic field nullification).

Table 7: Protective zones (electronics) - warnings
MW 5x15 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	4.5 cm
Hearing aid	10 Gs (1.0 mT)	3.5 cm
Timepiece	20 Gs (2.0 mT)	2.5 cm
Mobile device	40 Gs (4.0 mT)	2.0 cm
Car key	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

Powerful magnet radiation poses a real danger to electronic devices and medical implants. These neodymiums generate a field that destroys function of digital equipment. Notice: the invisible magnetic field acts through matter and glass. Special caution must be exercised by people with hearing aids and drug dispensers. The risk also applies to: mechanical watches, remotes, membranes, and screens. Avoid contact with magnetic cards, hard drives, or precise measuring instruments.

Table 8: Impact energy (cracking risk) - warning
MW 5x15 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	14.87 km/h (4.13 m/s)	0.02 J
30 mm	25.74 km/h (7.15 m/s)	0.06 J
50 mm	33.23 km/h (9.23 m/s)	0.09 J
100 mm	47.00 km/h (13.06 m/s)	0.19 J

Magnetic elements are very brittle – a strong collision with metal causes immediate chipping. Watch the impact speed – a neodymium left loose speeds with massive force. Striking energy can trigger coating fragments or dangerous crushing to fingers. Hold the magnet firmly during bringing near metal 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: Anti-corrosion coating durability
MW 5x15 / N38

Technical parameter	Value / Description
Coating type	[NiCuNi] Nickel
Layer structure	Nickel - Copper - Nickel
Layer thickness	10-20 µm
Salt spray test (SST) ?	24 h
Recommended environment	Indoors only (dry)

For outdoor applications, an epoxy coating is required; standard nickel is intended for indoor use. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Construction data (Flux)
MW 5x15 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	1 382 Mx	13.8 µWb
P_c Coefficient	1.38	High (Stable)

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

Table 11: Underwater work (magnet fishing)
MW 5x15 / N38

Environment	Effective steel pull	Effect
Air (land)	0.48 kg	Standard
Water (riverbed)	0.55 kg (+0.07 kg Buoyancy gain)	+14.5%

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

In water, the magnet feels stronger thanks to Archimedes' principle. Buoyancy helps in lifting finds.

1. Sliding resistance

*Note: On a vertical surface, the magnet retains merely ~20% of its max power.

2. Steel saturation

*Thin steel (e.g. computer case) significantly limits the holding force.

3. Power loss vs temp

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

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 1.38

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

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: 010084-2025

Measurement Calculator

Force (pull)

Force (N)

Force in lbs

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Gauss (Gs)

Tesla (T)

Enter your figure into any field, and all other values convert on the fly.

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RM R8 ULTRA - 13000 Gs / N52 - magnetic distributor

200.00 ZŁ brutto / pcs

The offered product is an incredibly powerful rod magnet, composed of modern NdFeB material, which, at dimensions of Ø5x15 mm, guarantees the highest energy density. This specific item boasts high dimensional repeatability and industrial build quality, making it a perfect solution for the most demanding engineers and designers. As a magnetic rod with significant force (approx. 0.48 kg), this product is in stock from our European logistics center, ensuring rapid order fulfillment. Moreover, its triple-layer Ni-Cu-Ni coating secures it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.

This model is ideal for building generators, advanced sensors, and efficient magnetic separators, where field concentration on a small surface counts. Thanks to the pull force of 4.68 N with a weight of only 2.21 g, this rod is indispensable in electronics and wherever every gram matters.

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 precision component. To ensure stability in industry, anaerobic resins are used, which do not react with the nickel coating and fill the gap, guaranteeing high repeatability of the connection.

Grade N38 is the most frequently chosen standard for professional neodymium magnets, offering an optimal price-to-power ratio and operational stability. If you need even stronger magnets in the same volume (Ø5x15), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our warehouse.

This model is characterized by dimensions Ø5x15 mm, which, at a weight of 2.21 g, makes it an element with high magnetic energy density. The value of 4.68 N means that the magnet is capable of holding a weight many times exceeding its own mass of 2.21 g. The product has a [NiCuNi] coating, which protects the surface against external factors, giving it an aesthetic, silvery shine.

This rod magnet is magnetized axially (along the height of 15 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 diametrically if your project requires it.

Pros and cons of Nd₂Fe₁₄B magnets.

Advantages

In addition to their long-term stability, neodymium magnets provide the following advantages:

They have constant strength, and over more than ten years their performance decreases symbolically – ~1% (according to theory),
They do not lose their magnetic properties even under close interference source,
A magnet with a shiny silver surface has better aesthetics,
They are known for high magnetic induction at the operating surface, which increases their power,
Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
Thanks to flexibility in constructing and the capacity to adapt to client solutions,
Significant place in future technologies – they are utilized in data components, electric motors, medical devices, also industrial machines.
Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in compact dimensions, which enables their usage in miniature devices

Cons

Problematic aspects of neodymium magnets and ways of using them

To avoid cracks upon strong impacts, we suggest using special steel holders. Such a solution secures the magnet and simultaneously improves its durability.
Neodymium magnets lose their power under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material immune to moisture, in case of application outdoors
Due to limitations in producing nuts and complex forms in magnets, we propose using a housing - magnetic holder.
Health risk to health – tiny shards of magnets pose a threat, if swallowed, which becomes key in the context of child health protection. Additionally, small elements of these magnets can complicate diagnosis medical in case of swallowing.
Due to expensive raw materials, their price is relatively high,

Pull force analysis

Optimal lifting capacity of a neodymium magnet – what contributes to it?

Magnet power was determined for ideal contact conditions, taking into account:

using a sheet made of high-permeability steel, serving as a magnetic yoke
possessing a massiveness of at least 10 mm to ensure full flux closure
with an polished touching surface
without any clearance between the magnet and steel
during detachment in a direction perpendicular to the mounting surface
at standard ambient temperature

Determinants of lifting force in real conditions

During everyday use, the real power is determined by many variables, listed from crucial:

Clearance – existence of foreign body (paint, tape, air) interrupts the magnetic circuit, which reduces power steeply (even by 50% at 0.5 mm).
Direction of force – maximum parameter is obtained only during perpendicular pulling. The resistance to sliding of the magnet along the surface is standardly several times lower (approx. 1/5 of the lifting capacity).
Element thickness – for full efficiency, the steel must be adequately massive. Thin sheet restricts the attraction force (the magnet "punches through" it).
Material composition – different alloys attracts identically. Alloy additives weaken the attraction effect.
Smoothness – ideal contact is obtained only on smooth steel. Rough texture create air cushions, reducing force.
Operating temperature – neodymium magnets have a sensitivity to temperature. When it is hot they lose power, and at low temperatures they can be stronger (up to a certain limit).

Holding force was tested on the plate surface of 20 mm thickness, when a perpendicular force was applied, however under parallel forces the holding force is lower. In addition, even a small distance between the magnet’s surface and the plate lowers the load capacity.

Warnings

Do not drill into magnets

Fire warning: Neodymium dust is explosive. Avoid machining magnets without safety gear as this may cause fire.

Product not for children

Strictly keep magnets out of reach of children. Choking hazard is high, and the effects of magnets clamping inside the body are very dangerous.

Power loss in heat

Watch the temperature. Exposing the magnet to high heat will destroy its magnetic structure and strength.

Shattering risk

Protect your eyes. Magnets can fracture upon violent connection, ejecting sharp fragments into the air. Eye protection is mandatory.

Pacemakers

People with a heart stimulator must keep an safe separation from magnets. The magnetism can disrupt the functioning of the life-saving device.

Immense force

Exercise caution. Neodymium magnets attract from a long distance and snap with massive power, often faster than you can react.

Finger safety

Danger of trauma: The attraction force is so immense that it can result in hematomas, pinching, and broken bones. Use thick gloves.

GPS and phone interference

Be aware: neodymium magnets generate a field that confuses precision electronics. Keep a safe distance from your phone, device, and GPS.

Protect data

Equipment safety: Strong magnets can ruin data carriers and delicate electronics (heart implants, medical aids, mechanical watches).

Warning for allergy sufferers

Allergy Notice: The Ni-Cu-Ni coating contains nickel. If redness appears, cease working with magnets and use protective gear.

Danger! Looking for details? Read our article: Are neodymium magnets dangerous?

MW 5x15 / N38 - cylindrical magnet

Technical parameters - MW 5x15 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical modeling of the product - report

Table 1: Static pull force (force vs distance) - interaction chart MW 5x15 / N38

Table 2: Slippage hold (vertical surface) MW 5x15 / N38

Table 3: Wall mounting (sliding) - behavior on slippery surfaces MW 5x15 / N38

Table 4: Steel thickness (saturation) - power losses MW 5x15 / N38

Table 5: Working in heat (stability) - resistance threshold MW 5x15 / N38

Table 6: Magnet-Magnet interaction (repulsion) - forces in the system MW 5x15 / N38

Table 7: Protective zones (electronics) - warnings MW 5x15 / N38

Table 8: Impact energy (cracking risk) - warning MW 5x15 / N38

Table 9: Anti-corrosion coating durability MW 5x15 / N38

Table 10: Construction data (Flux) MW 5x15 / N38

Table 11: Underwater work (magnet fishing) MW 5x15 / N38

1. Sliding resistance

2. Steel saturation

3. Power loss vs temp

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

Elemental analysis

Sustainability

Force (pull)

Field Strength

Other products

MP 5x1.5x3 / N38 - ring magnet

MW 28.9x10 / N38 - cylindrical magnet

HH 42x8.8 [M6] / N38 - through hole magnetic holder

RM R8 ULTRA - 13000 Gs / N52 - magnetic distributor

Pros and cons of Nd2Fe14B magnets.

Advantages

Cons

Pull force analysis

Optimal lifting capacity of a neodymium magnet – what contributes to it?

Determinants of lifting force in real conditions

Warnings

Do not drill into magnets

Product not for children

Power loss in heat

Shattering risk

Pacemakers

Immense force

Finger safety

GPS and phone interference

Protect data

Warning for allergy sufferers

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs distance) - interaction chart
MW 5x15 / N38

Table 2: Slippage hold (vertical surface)
MW 5x15 / N38

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MW 5x15 / N38

Table 4: Steel thickness (saturation) - power losses
MW 5x15 / N38

Table 5: Working in heat (stability) - resistance threshold
MW 5x15 / N38

Table 6: Magnet-Magnet interaction (repulsion) - forces in the system
MW 5x15 / N38

Table 7: Protective zones (electronics) - warnings
MW 5x15 / N38

Table 8: Impact energy (cracking risk) - warning
MW 5x15 / N38

Table 9: Anti-corrosion coating durability
MW 5x15 / N38

Table 10: Construction data (Flux)
MW 5x15 / N38

Table 11: Underwater work (magnet fishing)
MW 5x15 / N38

Pros and cons of Nd₂Fe₁₄B magnets.