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MW 6x6 / 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 010094

GTIN/EAN: 5906301810933

5.00

Diameter Ø

6 mm [±0,1 mm]

Height

6 mm [±0,1 mm]

Weight

1.27 g

Magnetization Direction

↑ axial

Load capacity

1.14 kg / 11.18 N

Magnetic Induction

553.38 mT / 5534 Gs

Coating

[NiCuNi] Nickel

0.677 ZŁ with VAT / pcs + price for transport

0.550 ZŁ net + 23% VAT / pcs

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MW 6x6 / N38 - cylindrical magnet

Specification / characteristics MW 6x6 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010094
GTIN/EAN	5906301810933
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	6 mm [±0,1 mm]
Weight	1.27 g
Magnetization Direction	↑ axial
Load capacity ~ ?	1.14 kg / 11.18 N
Magnetic Induction ~ ?	553.38 mT / 5534 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 6x6 / 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 - report

The following information constitute the result of a mathematical simulation. Values are based on algorithms for the material Nd₂Fe₁₄B. Operational performance may differ. Use these data as a reference point during assembly planning.

Table 1: Static force (force vs distance) - interaction chart
MW 6x6 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg)	Risk Status
0 mm	5527 Gs 552.7 mT	1.14 kg / 1140.0 g 11.2 N	weak grip
1 mm	3738 Gs 373.8 mT	0.52 kg / 521.5 g 5.1 N	weak grip
2 mm	2366 Gs 236.6 mT	0.21 kg / 209.0 g 2.0 N	weak grip
3 mm	1498 Gs 149.8 mT	0.08 kg / 83.7 g 0.8 N	weak grip
5 mm	665 Gs 66.5 mT	0.02 kg / 16.5 g 0.2 N	weak grip
10 mm	155 Gs 15.5 mT	0.00 kg / 0.9 g 0.0 N	weak grip
15 mm	58 Gs 5.8 mT	0.00 kg / 0.1 g 0.0 N	weak grip
20 mm	28 Gs 2.8 mT	0.00 kg / 0.0 g 0.0 N	weak grip
30 mm	9 Gs 0.9 mT	0.00 kg / 0.0 g 0.0 N	weak grip
50 mm	2 Gs 0.2 mT	0.00 kg / 0.0 g 0.0 N	weak grip

Grip strength drops drastically with every subsequent millimeter of distance. Remember that every additional insulation layer (e.g., contamination, paint, rust) strongly diminishes the holding power. Magnets hold strongest at the point of direct contact; distance weakens the power. Notice how rapidly the pull force plummet, when the magnet does not adhere directly to the metal substrate. When planning the mounting, avoid unnecessary gaps.

Table 2: Slippage Load (Wall)
MW 6x6 / N38

Distance (mm)	Friction coefficient	Pull Force (kg)
0 mm	Stal (~0.2)	0.23 kg / 228.0 g 2.2 N
1 mm	Stal (~0.2)	0.10 kg / 104.0 g 1.0 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 / 4.0 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 calculates the estimated shear load needed to initiate the slippage of the magnet down on a vertical steel plate (assuming standard friction). The holding force varies with the gap size between the magnet and the metal.

Table 3: Wall mounting (sliding) - vertical pull
MW 6x6 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.34 kg / 342.0 g 3.4 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.23 kg / 228.0 g 2.2 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.11 kg / 114.0 g 1.1 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.57 kg / 570.0 g 5.6 N

When placing a magnet on a upright wall (e.g., a board), it will only hold only about 20%-30% of its maximum pull force. Gravitational force as well as a low friction coefficient cause that magnets slip faster than they pull off. Designing a wall mount? Remember that the sliding force is much weaker than the perpendicular breakaway force. On a slippery surface, the magnet will slip down under a much lighter cargo. Utilizing a rubberized layer can significantly increase the grip.

Table 4: Steel thickness (substrate influence) - power losses
MW 6x6 / N38

Steel thickness (mm)	% power	Real pull force (kg)
0.5 mm	10%	0.11 kg / 114.0 g 1.1 N
1 mm	25%	0.29 kg / 285.0 g 2.8 N
2 mm	50%	0.57 kg / 570.0 g 5.6 N
5 mm	100%	1.14 kg / 1140.0 g 11.2 N
10 mm	100%	1.14 kg / 1140.0 g 11.2 N

A thin metal plate is unable to take in the entire magnetic field, which squanders power of the holder. If you install a neodymium to a too thin substrate, the field will pass right through and the pull force will drop sharply. To achieve full efficiency of this neodymium's power, you require a sufficiently solid element of metal. The saturation effect causes that on thin elements (e.g., thin profiles), the magnet shows lower pull force. We recommend selecting the steel dimension according to the table below.

Table 5: Working in heat (material behavior) - thermal limit
MW 6x6 / N38

Ambient temp. (°C)	Power loss	Remaining pull	Status
20 °C	0.0%	1.14 kg / 1140.0 g 11.2 N	OK
40 °C	-2.2%	1.11 kg / 1114.9 g 10.9 N	OK
60 °C	-4.4%	1.09 kg / 1089.8 g 10.7 N	OK
80 °C	-6.6%	1.06 kg / 1064.8 g 10.4 N
100 °C	-28.8%	0.81 kg / 811.7 g 8.0 N

Standard neodymium magnets lose power past the thermal threshold. Watch out for overheating – high temperature can irreversibly demagnetize this magnet. With every degree above norm, the magnet's capacity briefly lowers. Refrain from using this magnet near heat sources higher than its safe range. Too high temperature will lead to permanent loss of magnetic properties.

*Important note: Thermal stability is determined by both grade, and the Permeance Coefficient Pc. Low-profile magnets (low Pc) risk losing magnetic properties at lower temperatures compared to rod magnets. Warning indicator in the table signals a risk of irreversible loss for this specific geometry.

Table 6: Magnet-Magnet interaction (repulsion) - forces in the system
MW 6x6 / N38

Gap (mm)	Attraction (kg) (N-S)	Repulsion (kg) (N-N)
0 mm	5.32 kg / 5324 g 52.2 N 5 995 Gs	N/A
1 mm	3.70 kg / 3705 g 36.3 N 9 220 Gs	3.33 kg / 3334 g 32.7 N ~0 Gs
2 mm	2.44 kg / 2436 g 23.9 N 7 476 Gs	2.19 kg / 2192 g 21.5 N ~0 Gs
3 mm	1.55 kg / 1552 g 15.2 N 5 968 Gs	1.40 kg / 1397 g 13.7 N ~0 Gs
5 mm	0.61 kg / 614 g 6.0 N 3 755 Gs	0.55 kg / 553 g 5.4 N ~0 Gs
10 mm	0.08 kg / 77 g 0.8 N 1 330 Gs	0.07 kg / 69 g 0.7 N ~0 Gs
20 mm	0.00 kg / 4 g 0.0 N 311 Gs	0.00 kg / 0 g 0.0 N ~0 Gs
50 mm	0.00 kg / 0 g 0.0 N 31 Gs	0.00 kg / 0 g 0.0 N ~0 Gs

Two magnets attract each other from a significantly greater distance than a neodymium and metal combination. The setup of two magnets creates a more powerful interaction and a further horizon of action. Designing a solid fastener? Apply two magnets instead of a neodymium and a striker plate. Remember that when bringing together two magnets, the impact force is massive. The repulsion force is a bit weaker than the connection force, but still large.
*Flux density for N-N configuration is approximately ~0 Gs at the geometric center of the gap (resulting from vector opposition).

Table 7: Hazards (electronics) - warnings
MW 6x6 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	4.0 cm
Hearing aid	10 Gs (1.0 mT)	3.0 cm
Mechanical watch	20 Gs (2.0 mT)	2.5 cm
Phone / Smartphone	40 Gs (4.0 mT)	2.0 cm
Remote	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 large risk to electronic devices and pacemakers. These neodymiums produce a flux that destroys function of sensitive medical devices. Be aware: the unseen radiation passes through tissues and plastic. Special caution must be taken by people with hearing aids and drug dispensers. Also at risk are: automatic timepieces, remotes, membranes, and screens. Do not bring the product near payment cards, HDD media, or sensitive navigation tools.

Table 8: Collisions (cracking risk) - warning
MW 6x6 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	30.23 km/h (8.40 m/s)	0.04 J
30 mm	52.34 km/h (14.54 m/s)	0.13 J
50 mm	67.56 km/h (18.77 m/s)	0.22 J
100 mm	95.55 km/h (26.54 m/s)	0.45 J

Neodymium magnets are prone to chipping – a violent impact against metal risks their cracking. Watch the impact speed – a magnet released freely becomes dangerous. Striking energy can cause material chips or dangerous crushing to skin. Always hold the magnet during mounting so it doesn't slam with momentum against the steel surface. A collision at high speed almost guarantees destruction of the magnet. Wear safety glasses when working with powerful specimens.

Table 9: Surface protection spec
MW 6x6 / 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. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Construction Data (P_c)
MW 6x6 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	1 613 Mx	16.1 µWb
P_c Coefficient	0.89	High (Stable)

Total magnetic flux emitted by the magnet pole. Key data when building generators as well as sensors. P_c value defines the magnet's operating point.

Table 11: Underwater work (magnet fishing)
MW 6x6 / N38

Environment	Effective steel pull	Effect
Air (land)	1.14 kg	Standard
Water (riverbed)	1.31 kg (+0.17 kg Buoyancy gain)	+14.5%

Warning: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!

Contrary to myths, water does not block the magnetic field. Buoyancy helps in lifting finds.

1. Wall mount (shear)

*Caution: On a vertical surface, the magnet retains just approx. 20-30% of its max power.

2. Steel saturation

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

3. Temperature resistance

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

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.89

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 and environmental data

Chemical composition

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: 010094-2025

Measurement Calculator

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SM 32x400 [2xM8] / N52 - magnetic separator

1266.90 ZŁ brutto / pcs

The presented product is an exceptionally strong rod magnet, composed of modern NdFeB material, which, with dimensions of Ø6x6 mm, guarantees the highest energy density. This specific item boasts high dimensional repeatability and industrial build quality, making it an excellent solution for professional engineers and designers. As a magnetic rod with impressive force (approx. 1.14 kg), this product is in stock from our European logistics center, ensuring quick 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.

This model is created for building generators, advanced sensors, and efficient filters, where field concentration on a small surface counts. Thanks to the high power of 11.18 N with a weight of only 1.27 g, this cylindrical magnet is indispensable in miniature devices and wherever every gram matters.

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 precision component. To ensure long-term durability in industry, anaerobic resins are used, which do not react with the nickel coating and fill the gap, guaranteeing durability 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 (Ø6x6), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our store.

The presented product is a neodymium magnet with precisely defined parameters: diameter 6 mm and height 6 mm. The value of 11.18 N means that the magnet is capable of holding a weight many times exceeding its own mass of 1.27 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 6 mm. Such an arrangement is most desirable when connecting magnets in stacks (e.g., in filters) or when mounting in sockets at the bottom of a hole. On request, we can also produce versions magnetized through the diameter if your project requires it.

Advantages and disadvantages of rare earth magnets.

Benefits

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

Their strength is maintained, and after approximately ten years it drops only by ~1% (theoretically),
Magnets very well defend themselves against demagnetization caused by external fields,
A magnet with a metallic gold surface has better aesthetics,
Magnets exhibit maximum magnetic induction on the outer side,
Through (adequate) combination of ingredients, they can achieve high thermal resistance, enabling operation at temperatures approaching 230°C and above...
Thanks to the potential of precise shaping and adaptation to custom needs, magnetic components can be manufactured in a broad palette of geometric configurations, which amplifies use scope,
Universal use in modern industrial fields – they are commonly used in magnetic memories, electric motors, medical equipment, also other advanced devices.
Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Cons

Disadvantages of NdFeB magnets:

They are fragile upon heavy impacts. To avoid cracks, it is worth protecting magnets in special housings. Such protection not only protects the magnet but also increases its resistance to damage
Neodymium magnets lose strength when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of power (a factor is the shape and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely resistant to heat
Magnets exposed to a humid environment can corrode. Therefore when using outdoors, we advise using waterproof magnets made of rubber, plastic or other material resistant to moisture
Due to limitations in creating nuts and complex forms in magnets, we recommend using a housing - magnetic mechanism.
Possible danger related to microscopic parts of magnets are risky, when accidentally swallowed, which becomes key in the context of child health protection. Additionally, small components of these products can be problematic in diagnostics medical in case of swallowing.
With budget limitations the cost of neodymium magnets can be a barrier,

Holding force characteristics

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

The force parameter is a result of laboratory testing conducted under standard conditions:

using a base made of mild steel, acting as a circuit closing element
whose thickness reaches at least 10 mm
characterized by even structure
without the slightest insulating layer between the magnet and steel
during detachment in a direction perpendicular to the mounting surface
at temperature approx. 20 degrees Celsius

Determinants of practical lifting force of a magnet

In real-world applications, the actual holding force is determined by several key aspects, presented from the most important:

Space between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by varnish or unevenness) diminishes the magnet efficiency, often by half at just 0.5 mm.
Loading method – declared lifting capacity refers to detachment vertically. When applying parallel force, the magnet exhibits much less (often approx. 20-30% of nominal force).
Metal thickness – the thinner the sheet, the weaker the hold. Magnetic flux penetrates through instead of generating force.
Steel type – low-carbon steel gives the best results. Alloy steels reduce magnetic permeability and lifting capacity.
Surface finish – ideal contact is possible only on smooth steel. Any scratches and bumps reduce the real contact area, reducing force.
Thermal conditions – NdFeB sinters have a sensitivity to temperature. When it is hot they lose power, and in frost gain strength (up to a certain limit).

Lifting capacity testing was performed on a smooth plate of suitable thickness, under perpendicular forces, however under attempts to slide the magnet the lifting capacity is smaller. Additionally, even a slight gap between the magnet and the plate reduces the holding force.

H&S for magnets

No play value

Only for adults. Tiny parts pose a choking risk, causing severe trauma. Keep out of reach of kids and pets.

Protect data

Powerful magnetic fields can destroy records on credit cards, HDDs, and other magnetic media. Stay away of min. 10 cm.

Serious injuries

Danger of trauma: The attraction force is so great that it can result in blood blisters, pinching, and even bone fractures. Protective gloves are recommended.

Machining danger

Drilling and cutting of NdFeB material poses a fire risk. Neodymium dust reacts violently with oxygen and is hard to extinguish.

Precision electronics

Navigation devices and mobile phones are highly susceptible to magnetism. Close proximity with a strong magnet can decalibrate the internal compass in your phone.

Medical interference

Warning for patients: Strong magnetic fields disrupt medical devices. Keep at least 30 cm distance or request help to work with the magnets.

Power loss in heat

Regular neodymium magnets (N-type) lose power when the temperature goes above 80°C. Damage is permanent.

Do not underestimate power

Handle with care. Rare earth magnets attract from a long distance and connect with huge force, often quicker than you can move away.

Risk of cracking

Watch out for shards. Magnets can fracture upon violent connection, ejecting shards into the air. Wear goggles.

Allergic reactions

Medical facts indicate that nickel (standard magnet coating) is a strong allergen. If you have an allergy, refrain from direct skin contact or select coated magnets.

Attention! Learn more about hazards in the article: Safety of working with magnets.

MW 6x6 / N38 - cylindrical magnet

Hunting for a discount?

MW 6x6 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical modeling of the assembly - report

1. Wall mount (shear)

2. Steel saturation

3. Temperature resistance

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

Chemical composition

Ecology and recycling (GPSR)

Force (Pull)

Magnetic Induction

See also offers

HH 20x7.2 [M4] / N38 - through hole magnetic holder

MPL 30x15x10 / N38 - lamellar magnet

MW 4x5 / N38 - cylindrical magnet

SM 32x400 [2xM8] / N52 - magnetic separator

Advantages and disadvantages of rare earth magnets.

Benefits

Cons

Holding force characteristics

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

Determinants of practical lifting force of a magnet

No play value

Protect data

Serious injuries

Machining danger

Precision electronics

Medical interference

Power loss in heat

Do not underestimate power

Risk of cracking

Allergic reactions

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C