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MW 6x2 / 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 010092

GTIN: 5906301810919

5.00

Diameter Ø

6 mm [±0,1 mm]

Height

2 mm [±0,1 mm]

Weight

0.42 g

Magnetization Direction

↑ axial

Load capacity

0.86 kg / 8.43 N

Magnetic Induction

343.37 mT / 3434 Gs

Coating

[NiCuNi] Nickel

0.246 ZŁ with VAT / pcs + price for transport

0.200 ZŁ net + 23% VAT / pcs

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MW 6x2 / N38 - cylindrical magnet

Specification / characteristics MW 6x2 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010092
GTIN	5906301810919
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	2 mm [±0,1 mm]
Weight	0.42 g
Magnetization Direction	↑ axial
Load capacity ~ ?	0.86 kg / 8.43 N
Magnetic Induction ~ ?	343.37 mT / 3434 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 6x2 / N38 - cylindrical magnet

properties	values	units
remenance Br [Min. - Max.] ?	12.2-12.6	kGs
remenance Br [Min. - Max.] ?	1220-1260	T
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 106	°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 analysis of the product - report

Presented information constitute the outcome of a physical calculation. Results were calculated on algorithms for the class NdFeB. Operational conditions may differ from theoretical values. Please consider these calculations as a reference point when designing systems.

Table 1: Static pull force (pull vs gap) - power drop
MW 6x2 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg)	Risk Status
0 mm	3430 Gs 343.0 mT	0.86 kg / 860.0 g 8.4 N	weak grip
1 mm	2423 Gs 242.3 mT	0.43 kg / 429.2 g 4.2 N	weak grip
2 mm	1521 Gs 152.1 mT	0.17 kg / 169.0 g 1.7 N	weak grip
3 mm	932 Gs 93.2 mT	0.06 kg / 63.5 g 0.6 N	weak grip
5 mm	382 Gs 38.2 mT	0.01 kg / 10.7 g 0.1 N	weak grip
10 mm	76 Gs 7.6 mT	0.00 kg / 0.4 g 0.0 N	weak grip
15 mm	26 Gs 2.6 mT	0.00 kg / 0.0 g 0.0 N	weak grip
20 mm	12 Gs 1.2 mT	0.00 kg / 0.0 g 0.0 N	weak grip
30 mm	4 Gs 0.4 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

Magnetic force decreases significantly with every mm of spacing. Note that even a microscopic distance (e.g., contamination, varnish, veneer) noticeably weakens the grip. Magnetic products operate optimally at the point of direct contact; air break drastically cuts the force. Analyze how flashily the parameters drop, when the product does not adhere tightly to the metal substrate. When calculating the assembly, avoid redundant distances.

Table 2: Sliding Force (Wall)
MW 6x2 / N38

Distance (mm)	Friction coefficient	Pull Force (kg)
0 mm	Stal (~0.2)	0.17 kg / 172.0 g 1.7 N
1 mm	Stal (~0.2)	0.09 kg / 86.0 g 0.8 N
2 mm	Stal (~0.2)	0.03 kg / 34.0 g 0.3 N
3 mm	Stal (~0.2)	0.01 kg / 12.0 g 0.1 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

The table below calculates the estimated holding capacity sufficient to initiate the slippage of the magnet down against a upright metal surface (considering typical friction). This parameter varies with the air gap between the magnet and the metal.

Table 3: Wall mounting (shearing) - vertical pull
MW 6x2 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.26 kg / 258.0 g 2.5 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.17 kg / 172.0 g 1.7 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.09 kg / 86.0 g 0.8 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.43 kg / 430.0 g 4.2 N

When hanging a magnet on a vertical plane (e.g., a fridge), it will only hold only approx. 20%-30% of its nominal power. Gravity and a low friction coefficient cause that magnets slide down faster than they pull off. Designing a hanger? Remember that the shear force is noticeably lower than the maximum static pull force. On a slippery surface, the holder will give way down under a noticeably lighter load. Utilizing a rubberized layer can drastically improve the result.

Table 4: Steel thickness (saturation) - sheet metal selection
MW 6x2 / N38

Steel thickness (mm)	% power	Real pull force (kg)
0.5 mm	10%	0.09 kg / 86.0 g 0.8 N
1 mm	25%	0.22 kg / 215.0 g 2.1 N
2 mm	50%	0.43 kg / 430.0 g 4.2 N
5 mm	100%	0.86 kg / 860.0 g 8.4 N
10 mm	100%	0.86 kg / 860.0 g 8.4 N

A thin sheet is unable to take in the full magnetic flux, which wastes potential of the holder. Should you install a neodymium to a weak sheet, the magnetism will pass right through and the holding will be smaller. To utilize full efficiency of this neodymium's potential, you need a suitably thick piece of steel. The saturation effect causes that on delicate walls (e.g., thin profiles), the product holds weaker. We recommend selecting the steel cross-section based on the following data.

Table 5: Thermal stability (stability) - resistance threshold
MW 6x2 / N38

Ambient temp. (°C)	Power loss	Remaining pull	Status
20 °C	0.0%	0.86 kg / 860.0 g 8.4 N	OK
40 °C	-2.2%	0.84 kg / 841.1 g 8.3 N	OK
60 °C	-4.4%	0.82 kg / 822.2 g 8.1 N
80 °C	-6.6%	0.80 kg / 803.2 g 7.9 N
100 °C	-28.8%	0.61 kg / 612.3 g 6.0 N

Standard neodymium magnets lose power above the temperature limit. Protect against heat – excessive heat can irreversibly destroy this magnet. As the temperature rises, the neodymium's force temporarily decreases. Do not use this product in hot environments exceeding its working range. Exceeding the critical threshold will lead to permanent loss of magnetism.

*Engineering note: Thermal stability is determined by both grade, but also on the magnet's shape. Flat magnets (pancake types) risk losing magnetic properties at lower temperatures compared to rod magnets. Warning indicator in the table signals permanent field degradation for this specific geometry.

Table 6: Two magnets (repulsion) - field collision
MW 6x2 / N38

Gap (mm)	Attraction (kg) (N-S)	Repulsion (kg) (N-N)
0 mm	0.86 kg / 864 g 8.5 N 6 878 Gs	N/A
1 mm	0.43 kg / 429 g 4.2 N 5 900 Gs	0.39 kg / 386 g 3.8 N ~0 Gs
2 mm	0.17 kg / 169 g 1.7 N 4 847 Gs	0.15 kg / 152 g 1.5 N ~0 Gs
3 mm	0.06 kg / 64 g 0.6 N 3 869 Gs	0.06 kg / 57 g 0.6 N ~0 Gs
5 mm	0.01 kg / 11 g 0.1 N 2 379 Gs	0.01 kg / 10 g 0.1 N ~0 Gs
10 mm	0.00 kg / 0 g 0.0 N 764 Gs	0.00 kg / 0 g 0.0 N ~0 Gs
20 mm	0.00 kg / 0 g 0.0 N 153 Gs	0.00 kg / 0 g 0.0 N ~0 Gs
50 mm	0.00 kg / 0 g 0.0 N 12 Gs	0.00 kg / 0 g 0.0 N ~0 Gs

Two magnetic products interact from a significantly greater distance than a magnet and sheet setup. The connection of two magnets produces a massive flux and a further horizon of action. Planning to create a solid fastener? Apply two magnets instead of one magnet and a striker plate. Remember that when connecting a pair of magnets, the impact force is massive. The repulsion force is marginally weaker than the connection force, but still significant.
*The magnetic induction between like poles reaches ~0 Gs at the midpoint between the magnets (caused by magnetic field nullification).

Table 7: Hazards (electronics) - warnings
MW 6x2 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	3.0 cm
Hearing aid	10 Gs (1.0 mT)	2.5 cm
Timepiece	20 Gs (2.0 mT)	2.0 cm
Phone / Smartphone	40 Gs (4.0 mT)	1.5 cm
Remote	50 Gs (5.0 mT)	1.5 cm
Payment card	400 Gs (40.0 mT)	0.5 cm
HDD hard drive	600 Gs (60.0 mT)	0.5 cm

A strong magnetic field poses a real danger to electronic devices as well as medical implants. These neodymiums generate a field that destroys function of sensitive medical devices. Be aware: the invisible magnetic field passes through tissues and housings. Increased vigilance must be taken by people with cochlear implants and insulin pumps. The risk also applies to: automatic timepieces, remotes, membranes, and screens. Avoid contact with magnetic cards, hard drives, or sensitive navigation tools.

Table 8: Dynamics (cracking risk) - warning
MW 6x2 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	45.65 km/h (12.68 m/s)	0.03 J
30 mm	79.04 km/h (21.96 m/s)	0.10 J
50 mm	102.04 km/h (28.35 m/s)	0.17 J
100 mm	144.31 km/h (40.09 m/s)	0.34 J

Magnetic elements are prone to chipping – a collision with steel can result in shattering. Watch the impact speed – a neodymium left loose becomes dangerous. Kinetic force can destroy the magnet or injury to fingers. Hold the magnet firmly during mounting so it doesn't hit with great force against the metal. A collision at high speed ends with a crack of the neodymium. Use safety goggles when playing with large magnets.

Table 9: Corrosion resistance
MW 6x2 / 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. Note the thickness of the protective layer.

Table 10: Generator data (Pc)
MW 6x2 / N38

Parameter	Value	Jedn. SI / Opis
Strumień (Flux)	1 029 Mx	10.3 µWb
Współczynnik Pc	0.44	Niski (Płaski)

Total magnetic flux flowing through the pole face. Essential parameter for coil applications and Hall effect devices. Permeance Coefficient determines the magnet operating point.

Table 11: Physics of underwater searching
MW 6x2 / N38

Environment	Effective steel pull	Effect
Air (land)	0.86 kg	Standard
Water (riverbed)	0.98 kg (+0.12 kg Buoyancy gain)	+14.5%

Corrosion warning: Remember to wipe the magnet thoroughly after removing it from water and apply a protective layer (e.g., oil) to avoid corrosion.

The magnetic field penetrates through water without any losses. However, remember the water resistance when pulling the rope quickly.

Measurement Calculator

Magnet Pull Force

Force in kg

Force (N)

Pounds (lbs)

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Gauss (Gs)

Tesla (T)

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The presented product is an extremely powerful rod magnet, composed of advanced NdFeB material, which, at dimensions of Ø6x2 mm, guarantees the highest energy density. The MW 6x2 / N38 model boasts high dimensional repeatability and professional build quality, making it an excellent solution for professional engineers and designers. As a magnetic rod with significant force (approx. 0.86 kg), this product is available off-the-shelf from our European logistics center, ensuring rapid order fulfillment. Additionally, its Ni-Cu-Ni coating effectively protects it against corrosion in standard operating conditions, guaranteeing an aesthetic appearance and durability for years.

This model is ideal for building electric motors, advanced sensors, and efficient magnetic separators, where field concentration on a small surface counts. Thanks to the high power of 8.43 N with a weight of only 0.42 g, this cylindrical magnet is indispensable in electronics and wherever every gram matters.

Due to the delicate structure of the ceramic sinter, you must not use 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.

Grade N38 is the most frequently chosen standard for industrial neodymium magnets, offering an optimal price-to-power ratio and operational stability. If you need even stronger magnets in the same volume (Ø6x2), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our warehouse.

The presented product is a neodymium magnet with precisely defined parameters: diameter 6 mm and height 2 mm. The key parameter here is the holding force amounting to approximately 0.86 kg (force ~8.43 N), which, with such defined dimensions, proves the high grade of the NdFeB material. The product has a [NiCuNi] coating, which secures it against external factors, giving it an aesthetic, silvery shine.

Standardly, the magnetic axis runs through the center of the cylinder, causing the greatest attraction force to occur on the bases with a diameter of 6 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 through the diameter if your project requires it.

Pros as well as cons of rare earth magnets.

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

They have stable power, and over more than ten years their attraction force decreases symbolically – ~1% (in testing),
They feature excellent resistance to magnetism drop due to opposing magnetic fields,
A magnet with a metallic gold surface is more attractive,
Neodymium magnets deliver maximum magnetic induction on a their surface, which ensures high operational effectiveness,
Thanks to resistance to high temperature, they are capable of working (depending on the form) even at temperatures up to 230°C and higher...
Thanks to the option of flexible forming and customization to specialized solutions, neodymium magnets can be modeled in a wide range of geometric configurations, which expands the range of possible applications,
Huge importance in modern technologies – they are commonly used in computer drives, electric drive systems, medical equipment, also other advanced devices.
Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Cons of neodymium magnets and ways of using them

At strong impacts they can break, therefore we advise placing them in steel cases. A metal housing provides additional protection against damage and increases the magnet's durability.
We warn that neodymium magnets can reduce their strength at high temperatures. To prevent this, we recommend our specialized [AH] magnets, which work effectively even at 230°C.
When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as those in rubber or plastics, which secure oxidation and corrosion.
We suggest a housing - magnetic holder, due to difficulties in producing threads inside the magnet and complicated forms.
Possible danger related to microscopic parts of magnets can be dangerous, when accidentally swallowed, which gains importance in the aspect of protecting the youngest. Additionally, tiny parts of these devices are able to be problematic in diagnostics medical when they are in the body.
High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which increases costs of application in large quantities

Detachment force of the magnet in optimal conditions – what affects it?

The specified lifting capacity represents the peak performance, measured under optimal environment, meaning:

using a sheet made of high-permeability steel, serving as a ideal flux conductor
whose thickness equals approx. 10 mm
characterized by even structure
with direct contact (without paint)
during pulling in a direction perpendicular to the plane
at ambient temperature approx. 20 degrees Celsius

Impact of factors on magnetic holding capacity in practice

Please note that the application force will differ depending on the following factors, starting with the most relevant:

Distance (between the magnet and the plate), since even a tiny distance (e.g. 0.5 mm) results in a reduction in lifting capacity by up to 50% (this also applies to varnish, corrosion or debris).
Direction of force – maximum parameter is obtained only during pulling at a 90° angle. The shear force of the magnet along the plate is usually many times smaller (approx. 1/5 of the lifting capacity).
Wall thickness – thin material does not allow full use of the magnet. Part of the magnetic field passes through the material instead of generating force.
Steel type – mild steel gives the best results. Higher carbon content reduce magnetic properties and holding force.
Smoothness – full contact is obtained only on polished steel. Any scratches and bumps reduce the real contact area, weakening the magnet.
Thermal factor – high temperature weakens magnetic field. Exceeding the limit temperature can permanently demagnetize the magnet.

* Holding force was measured on the plate surface of 20 mm thickness, when the force acted perpendicularly, in contrast under attempts to slide the magnet the holding force is lower. Moreover, even a slight gap {between} the magnet and the plate reduces the lifting capacity.

H&S for magnets

Warning for allergy sufferers

Certain individuals experience a sensitization to Ni, which is the typical protective layer for neodymium magnets. Extended handling might lead to skin redness. It is best to wear safety gloves.

Crushing risk

Danger of trauma: The pulling power is so immense that it can cause hematomas, crushing, and broken bones. Protective gloves are recommended.

No play value

Absolutely store magnets away from children. Risk of swallowing is significant, and the effects of magnets clamping inside the body are life-threatening.

Threat to navigation

A powerful magnetic field negatively affects the operation of compasses in phones and GPS navigation. Do not bring magnets near a smartphone to avoid breaking the sensors.

Material brittleness

Despite the nickel coating, the material is brittle and cannot withstand shocks. Do not hit, as the magnet may shatter into hazardous fragments.

Flammability

Dust created during grinding of magnets is combustible. Avoid drilling into magnets unless you are an expert.

Health Danger

People with a pacemaker should maintain an absolute distance from magnets. The magnetic field can disrupt the operation of the implant.

Heat warning

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

Electronic hazard

Device Safety: Neodymium magnets can ruin payment cards and delicate electronics (heart implants, medical aids, mechanical watches).

Conscious usage

Handle magnets consciously. Their immense force can shock even professionals. Plan your moves and respect their power.

Attention!

Want to know more? Check our post: Are neodymium magnets dangerous?

MW 6x2 / N38 - cylindrical magnet

MW 6x2 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical analysis of the product - report

Magnet Pull Force

Magnetic Field

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Pros as well as cons of rare earth magnets.

Detachment force of the magnet in optimal conditions – what affects it?

Impact of factors on magnetic holding capacity in practice

H&S for magnets

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C