Product available Ships tomorrow

MW 6x3 / 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 010093

GTIN/EAN: 5906301810926

5.00

Diameter Ø

6 mm [±0,1 mm]

Height

3 mm [±0,1 mm]

Weight

0.64 g

Magnetization Direction

↑ axial

Load capacity

1.15 kg / 11.23 N

Magnetic Induction

437.58 mT / 4376 Gs

Coating

[NiCuNi] Nickel

0.381 ZŁ with VAT / pcs + price for transport

0.310 ZŁ net + 23% VAT / pcs

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MW 6x3 / N38 - cylindrical magnet

Specification / characteristics MW 6x3 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010093
GTIN/EAN	5906301810926
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	6 mm [±0,1 mm]
Height	3 mm [±0,1 mm]
Weight	0.64 g
Magnetization Direction	↑ axial
Load capacity ~ ?	1.15 kg / 11.23 N
Magnetic Induction ~ ?	437.58 mT / 4376 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 6x3 / 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

Technical modeling of the assembly - data

Presented values represent the result of a physical simulation. Values rely on models for the material Nd₂Fe₁₄B. Actual parameters may deviate from the simulation results. Treat these data as a supplementary guide during assembly planning.

Table 1: Static force (force vs gap) - power drop
MW 6x3 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg)	Risk Status
0 mm	4371 Gs 437.1 mT	1.15 kg / 1150.0 g 11.3 N	weak grip
1 mm	2999 Gs 299.9 mT	0.54 kg / 541.6 g 5.3 N	weak grip
2 mm	1877 Gs 187.7 mT	0.21 kg / 212.2 g 2.1 N	weak grip
3 mm	1161 Gs 116.1 mT	0.08 kg / 81.2 g 0.8 N	weak grip
5 mm	489 Gs 48.9 mT	0.01 kg / 14.4 g 0.1 N	weak grip
10 mm	103 Gs 10.3 mT	0.00 kg / 0.6 g 0.0 N	weak grip
15 mm	36 Gs 3.6 mT	0.00 kg / 0.1 g 0.0 N	weak grip
20 mm	17 Gs 1.7 mT	0.00 kg / 0.0 g 0.0 N	weak grip
30 mm	5 Gs 0.5 mT	0.00 kg / 0.0 g 0.0 N	weak grip
50 mm	1 Gs 0.1 mT	0.00 kg / 0.0 g 0.0 N	weak grip

Pulling power decreases significantly with every mm of distance. Remember that even a very thin break (e.g., contamination, varnish, rust) noticeably reduces the pull force. Magnetic products hold optimally in perfect adhesion; gap drastically cuts the power. Analyze how rapidly the load capacity fall, when the product does not adhere flatly to the metal substrate. When designing the arrangement, avoid redundant distances.

Table 2: Shear Force (Vertical Surface)
MW 6x3 / N38

Distance (mm)	Friction coefficient	Pull Force (kg)
0 mm	Stal (~0.2)	0.23 kg / 230.0 g 2.3 N
1 mm	Stal (~0.2)	0.11 kg / 108.0 g 1.1 N
2 mm	Stal (~0.2)	0.04 kg / 42.0 g 0.4 N
3 mm	Stal (~0.2)	0.02 kg / 16.0 g 0.2 N
5 mm	Stal (~0.2)	0.00 kg / 2.0 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

This section presents the approximate force required to start the downward movement of the magnet downwards against a vertical steel wall (assuming standard friction). The holding force depends on the gap size between the magnet and the surface.

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 6x3 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.35 kg / 345.0 g 3.4 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.23 kg / 230.0 g 2.3 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.11 kg / 115.0 g 1.1 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.58 kg / 575.0 g 5.6 N

When mounting a holder on a vertical wall (e.g., a board), it will maintain only about 1/5 of its nominal power. Gravitational force as well as a weak degree of grip cause that magnets slip faster than they detach. Planning a vertical fastening? Remember that the shear force is significantly lower than the maximum static pull force. On a smooth steel, the holder will slide down under a significantly smaller load. Application of an anti-slip coating can effectively raise the stability.

Table 4: Material efficiency (saturation) - power losses
MW 6x3 / N38

Steel thickness (mm)	% power	Real pull force (kg)
0.5 mm	10%	0.11 kg / 115.0 g 1.1 N
1 mm	25%	0.29 kg / 287.5 g 2.8 N
2 mm	50%	0.58 kg / 575.0 g 5.6 N
5 mm	100%	1.15 kg / 1150.0 g 11.3 N
10 mm	100%	1.15 kg / 1150.0 g 11.3 N

A thin metal plate is incapable of absorb the entire magnetic field, which squanders power of the holder. If you install a neodymium to a too thin substrate, the flux will penetrate right through and the attraction force will be weaker. To utilize 100% of this magnet's potential, you require a sufficiently solid element of metal. The material oversaturation causes that on thin elements (e.g., appliance housings), the magnet shows lower pull force. We advise picking the steel dimension according to the table below.

Table 5: Thermal resistance (stability) - thermal limit
MW 6x3 / N38

Ambient temp. (°C)	Power loss	Remaining pull	Status
20 °C	0.0%	1.15 kg / 1150.0 g 11.3 N	OK
40 °C	-2.2%	1.12 kg / 1124.7 g 11.0 N	OK
60 °C	-4.4%	1.10 kg / 1099.4 g 10.8 N
80 °C	-6.6%	1.07 kg / 1074.1 g 10.5 N
100 °C	-28.8%	0.82 kg / 818.8 g 8.0 N

Standard neodymium magnets change their properties parameters past the thermal threshold. Watch out for overheating – heat can irreversibly damage this product. With every degree above norm, the neodymium's power momentarily drops. Refrain from using this product close to heaters higher than its safe range. Ignoring the limit will cause destruction of magnetism.

*Technical advisory: Heat tolerance is determined by both grade, but also on the magnet's shape. Thin magnets (low permeance coefficient) are more susceptible to demagnetization under lower heat stress than taller cylinders. Warning indicator in the table signals permanent field degradation for this particular item.

Table 6: Magnet-Magnet interaction (repulsion) - forces in the system
MW 6x3 / N38

Gap (mm)	Attraction (kg) (N-S)	Repulsion (kg) (N-N)
0 mm	3.33 kg / 3330 g 32.7 N 5 527 Gs	N/A
1 mm	2.37 kg / 2371 g 23.3 N 7 376 Gs	2.13 kg / 2134 g 20.9 N ~0 Gs
2 mm	1.57 kg / 1568 g 15.4 N 5 999 Gs	1.41 kg / 1411 g 13.8 N ~0 Gs
3 mm	0.99 kg / 992 g 9.7 N 4 772 Gs	0.89 kg / 893 g 8.8 N ~0 Gs
5 mm	0.38 kg / 379 g 3.7 N 2 948 Gs	0.34 kg / 341 g 3.3 N ~0 Gs
10 mm	0.04 kg / 42 g 0.4 N 978 Gs	0.04 kg / 37 g 0.4 N ~0 Gs
20 mm	0.00 kg / 2 g 0.0 N 205 Gs	0.00 kg / 0 g 0.0 N ~0 Gs
50 mm	0.00 kg / 0 g 0.0 N 18 Gs	0.00 kg / 0 g 0.0 N ~0 Gs

Two magnets interact from a much further distance than a magnet and steel combination. The connection of magnet-to-magnet produces a massive flux and a larger range of operation. Designing a strong closure? Utilize two neodymiums instead of a neodymium and a striker plate. Be careful that when connecting a pair of magnets, the pinch force is extreme. The repulsion force is marginally weaker than the connection force, but still impressive.
*The magnetic induction in repulsion mode reaches ~0 Gs at the midpoint of the gap (caused by magnetic field nullification).

Table 7: Safety (HSE) (electronics) - precautionary measures
MW 6x3 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	3.5 cm
Hearing aid	10 Gs (1.0 mT)	2.5 cm
Timepiece	20 Gs (2.0 mT)	2.0 cm
Mobile device	40 Gs (4.0 mT)	1.5 cm
Car key	50 Gs (5.0 mT)	1.5 cm
Payment card	400 Gs (40.0 mT)	1.0 cm
HDD hard drive	600 Gs (60.0 mT)	0.5 cm

Powerful magnet radiation is a serious hazard to electronics as well as pacemakers. These NdFeB products generate a flux that disrupts operation of sensitive medical devices. Notice: the invisible magnetic field acts through matter and plastic. Special caution must be taken by people with hearing aids and insulin pumps. The risk also applies to: automatic timepieces, car keys, membranes, and screens. Do not bring the product near payment cards, hard drives, or precise measuring instruments.

Table 8: Impact energy (kinetic energy) - warning
MW 6x3 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	42.77 km/h (11.88 m/s)	0.05 J
30 mm	74.05 km/h (20.57 m/s)	0.14 J
50 mm	95.59 km/h (26.55 m/s)	0.23 J
100 mm	135.19 km/h (37.55 m/s)	0.45 J

Neodymium magnets are very brittle – a collision with steel causes immediate chipping. Watch the impact speed – a neodymium left loose speeds with massive force. Striking energy can cause material chips or dangerous crushing to fingers. Always hold the magnet during installation so it doesn't hit violently against the steel surface. A collision at high speed ends with a crack of the neodymium. Use safety goggles when handling with large magnets.

Table 9: Coating parameters (durability)
MW 6x3 / N38

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

The following table defines the conditions under which this product can be safely used. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Construction Data (P_c)
MW 6x3 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	1 256 Mx	12.6 µWb
P_c Coefficient	0.59	Low (Flat)

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

Table 11: Hydrostatics and buoyancy
MW 6x3 / N38

Environment	Effective steel pull	Effect
Air (land)	1.15 kg	Standard
Water (riverbed)	1.32 kg (+0.17 kg Buoyancy gain)	+14.5%

Rust risk: 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. However, remember the water resistance when pulling the rope quickly.

1. Sliding resistance

*Note: On a vertical surface, the magnet holds merely ~20% of its nominal pull.

2. Steel saturation

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

3. Power loss vs temp

*For standard magnets, the critical limit is 80°C.

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.59

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

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%

Environmental data

recyclability (EoL)	100%
recycled raw materials	~10% (pre-cons)
carbon footprint	low / zredukowany
waste code (EWC)	16 02 16

Safety card (GPSR)

responsible entity

Dhit sp. z o.o.

ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki

tel: +48 22 499 98 98 | e-mail: bok@dhit.pl

batch number/type

id: 010093-2025

Measurement Calculator

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MW 14x10 / N38 - cylindrical magnet

6.84 ZŁ brutto / pcs

This product is an extremely powerful cylindrical magnet, composed of durable NdFeB material, which, at dimensions of Ø6x3 mm, guarantees maximum efficiency. This specific item features high dimensional repeatability and professional build quality, making it an ideal solution for the most demanding engineers and designers. As a magnetic rod with impressive force (approx. 1.15 kg), this product is in stock from our European logistics center, ensuring lightning-fast order fulfillment. Additionally, its Ni-Cu-Ni coating secures it against corrosion in standard operating conditions, guaranteeing an aesthetic appearance and durability for years.

It finds application in modeling, advanced robotics, and broadly understood industry, serving as a positioning or actuating element. Thanks to the high power of 11.23 N with a weight of only 0.64 g, this rod is indispensable in miniature devices and wherever every gram matters.

Due to the brittleness of the NdFeB material, you must not use force-fitting (so-called press-fit), as this risks chipping the coating of this professional component. To ensure long-term durability in automation, anaerobic resins are used, which are safe for nickel and fill the gap, guaranteeing high repeatability of the connection.

Magnets NdFeB grade N38 are strong enough for the majority of applications in modeling and machine building, where extreme miniaturization with maximum force is not required. If you need the strongest magnets in the same volume (Ø6x3), 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 Ø6x3 mm, which, at a weight of 0.64 g, makes it an element with impressive magnetic energy density. The key parameter here is the lifting capacity amounting to approximately 1.15 kg (force ~11.23 N), which, with such defined dimensions, proves the high grade of the NdFeB material. The product has a [NiCuNi] coating, which secures it against oxidation, giving it an aesthetic, silvery shine.

This rod magnet is magnetized axially (along the height of 3 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.

Strengths

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

They have constant strength, and over more than 10 years their performance decreases symbolically – ~1% (in testing),
They possess excellent resistance to magnetic field loss due to external magnetic sources,
In other words, due to the reflective surface of silver, the element gains visual value,
The surface of neodymium magnets generates a powerful magnetic field – this is a distinguishing feature,
Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can function (depending on the form) even at a temperature of 230°C or more...
Possibility of precise forming and adjusting to individual applications,
Universal use in future technologies – they are utilized in HDD drives, motor assemblies, medical equipment, and other advanced devices.
Thanks to their power density, small magnets offer high operating force, occupying minimum space,

Disadvantages

What to avoid - cons of neodymium magnets and proposals for their use:

At strong impacts they can crack, therefore we recommend placing them in steel cases. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
When exposed to high temperature, neodymium magnets experience a drop in power. Often, when the temperature exceeds 80°C, their strength 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 rust. Therefore when using outdoors, we suggest using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
Limited ability of creating threads in the magnet and complicated shapes - recommended is a housing - magnetic holder.
Possible danger resulting from small fragments of magnets are risky, in case of ingestion, which is particularly important in the context of child health protection. Additionally, tiny parts of these devices are able to be problematic in diagnostics medical after entering the body.
With budget limitations the cost of neodymium magnets is economically unviable,

Holding force characteristics

Optimal lifting capacity of a neodymium magnet – what affects it?

Breakaway force was defined for optimal configuration, taking into account:

on a block made of structural steel, effectively closing the magnetic flux
possessing a thickness of minimum 10 mm to avoid saturation
characterized by smoothness
without any clearance between the magnet and steel
for force acting at a right angle (pull-off, not shear)
at conditions approx. 20°C

Key elements affecting lifting force

Effective lifting capacity impacted by specific conditions, including (from priority):

Clearance – the presence of any layer (rust, dirt, air) interrupts the magnetic circuit, which lowers capacity rapidly (even by 50% at 0.5 mm).
Load vector – highest force is reached only during perpendicular pulling. The force required to slide of the magnet along the plate is standardly several times lower (approx. 1/5 of the lifting capacity).
Metal thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field passes through the material instead of converting into lifting capacity.
Chemical composition of the base – low-carbon steel gives the best results. Alloy admixtures decrease magnetic properties and lifting capacity.
Base smoothness – the more even the surface, the larger the contact zone and higher the lifting capacity. Unevenness creates an air distance.
Thermal factor – high temperature reduces magnetic field. Too high temperature can permanently damage the magnet.

Holding force was checked on the plate surface of 20 mm thickness, when a perpendicular force was applied, whereas under attempts to slide the magnet the holding force is lower. In addition, even a small distance between the magnet’s surface and the plate decreases the load capacity.

Safe handling of NdFeB magnets

Magnetic media

Avoid bringing magnets near a purse, laptop, or screen. The magnetic field can destroy these devices and wipe information from cards.

Phone sensors

A strong magnetic field interferes with the functioning of magnetometers in smartphones and navigation systems. Do not bring magnets close to a device to prevent breaking the sensors.

Maximum temperature

Standard neodymium magnets (N-type) lose magnetization when the temperature exceeds 80°C. Damage is permanent.

Sensitization to coating

Nickel alert: The nickel-copper-nickel coating contains nickel. If redness happens, immediately stop handling magnets and wear gloves.

Health Danger

Medical warning: Strong magnets can turn off pacemakers and defibrillators. Stay away if you have electronic implants.

Do not give to children

These products are not toys. Eating several magnets can lead to them connecting inside the digestive tract, which poses a critical condition and necessitates urgent medical intervention.

Mechanical processing

Mechanical processing of NdFeB material carries a risk of fire risk. Magnetic powder reacts violently with oxygen and is hard to extinguish.

Hand protection

Pinching hazard: The pulling power is so immense that it can result in hematomas, pinching, and broken bones. Use thick gloves.

Magnets are brittle

Despite metallic appearance, neodymium is brittle and not impact-resistant. Do not hit, as the magnet may shatter into hazardous fragments.

Respect the power

Use magnets consciously. Their powerful strength can surprise even experienced users. Plan your moves and do not underestimate their power.

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

MW 6x3 / N38 - cylindrical magnet

Not sure about your choice?

MW 6x3 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical modeling of the assembly - data

1. Sliding resistance

2. Steel saturation

3. Power loss vs temp

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

Material specification

Environmental data

Magnet Pull Force

Field Strength

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MW 14x10 / N38 - cylindrical magnet

Pros and cons of Nd2Fe14B magnets.

Strengths

Disadvantages

Holding force characteristics

Optimal lifting capacity of a neodymium magnet – what affects it?

Key elements affecting lifting force

Magnetic media

Phone sensors

Maximum temperature

Sensitization to coating

Health Danger

Do not give to children

Mechanical processing

Hand protection

Magnets are brittle

Respect the power

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Pros and cons of Nd₂Fe₁₄B magnets.