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MW 6x2 / N38 - cylindrical magnet

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

0.91 kg / 8.95 N

Magnetic Induction

343.37 mT

Coating

[NiCuNi] Nickel

0.246 ZŁ with VAT / pcs + price for transport

0.200 ZŁ net + 23% VAT / pcs

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Contact us by phone +48 888 99 98 98 otherwise get in touch via request form our website.
Parameters as well as form of neodymium magnets can be reviewed on our modular calculator.

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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 ~ ?	0.91 kg / 8.95 N
Magnetic Induction ~ ?	343.37 mT
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

Engineering simulation of the magnet - report

Presented information represent the direct effect of a physical analysis. Results rely on algorithms for the class NdFeB. Operational conditions might slightly differ from theoretical values. Use these data as a supplementary guide for designers.

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

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg)	Risk Status
0 mm	3430 Gs 343.0 mT	0.91 kg / 910.0 g 8.9 N	safe
1 mm	2423 Gs 242.3 mT	0.45 kg / 454.2 g 4.5 N	safe
2 mm	1521 Gs 152.1 mT	0.18 kg / 178.9 g 1.8 N	safe
5 mm	382 Gs 38.2 mT	0.01 kg / 11.3 g 0.1 N	safe
10 mm	76 Gs 7.6 mT	0.00 kg / 0.5 g 0.0 N	safe
15 mm	26 Gs 2.6 mT	0.00 kg / 0.1 g 0.0 N	safe
20 mm	12 Gs 1.2 mT	0.00 kg / 0.0 g 0.0 N	safe
30 mm	4 Gs 0.4 mT	0.00 kg / 0.0 g 0.0 N	safe
50 mm	1 Gs 0.1 mT	0.00 kg / 0.0 g 0.0 N	safe

Pulling power weakens significantly with every mm of spacing. Remember that even a microscopic distance (e.g., contamination, varnish, dust) significantly reduces the pull force. Neodymiums hold most effectively during direct contact; gap drastically cuts the force. See how flashily the parameters plummet, when the product does not adhere directly to the metal substrate. When calculating the mounting, discard unnecessary gaps.

Table 2: Vertical assembly (sliding) - vertical pull
MW 6x2 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.27 kg / 273.0 g 2.7 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.18 kg / 182.0 g 1.8 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.09 kg / 91.0 g 0.9 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.46 kg / 455.0 g 4.5 N

When mounting a magnet on a upright surface (e.g., a board), it will only hold barely approx. 20%-30% of nominal attraction strength. Gravitational force and a weak degree of grip mean that magnets slip faster than they pull off. Want to create a hanger? Remember that the shear force is much weaker than the perpendicular breakaway force. On a painted metal, the element will slip down under a significantly smaller weight. Using a rubber coating can effectively raise the stability.

Table 3: Material efficiency (saturation) - sheet metal selection
MW 6x2 / N38

Steel thickness (mm)	% power	Real pull force (kg)
0.5 mm	10%	0.09 kg / 91.0 g 0.9 N
1 mm	25%	0.23 kg / 227.5 g 2.2 N
2 mm	50%	0.46 kg / 455.0 g 4.5 N
5 mm	100%	0.91 kg / 910.0 g 8.9 N
10 mm	100%	0.91 kg / 910.0 g 8.9 N

A too thin steel is not enough to conduct the entire magnetic field, which weakens actual performance of the holder. Should you install a neodymium to a thin surface, the magnetism will pass right through and the attraction force will be weaker. To squeeze the maximum of this neodymium's potential, you need a suitably thick piece of steel. The saturation effect means that on thin elements (e.g., thin profiles), the product works worse. We recommend selecting the steel dimension based on the following data.

Table 4: Thermal stability (stability) - resistance threshold
MW 6x2 / N38

Ambient temp. (°C)	Power loss	Remaining pull	Status
20 °C	0.0%	0.91 kg / 910.0 g 8.9 N	OK
40 °C	-2.2%	0.89 kg / 890.0 g 8.7 N	OK
60 °C	-4.4%	0.87 kg / 870.0 g 8.5 N	OK
80 °C	-6.6%	0.85 kg / 849.9 g 8.3 N
100 °C	-28.8%	0.65 kg / 647.9 g 6.4 N

Classic neodymiums lose parameters above the temperature limit. Protect against heat – excessive heat can permanently destroy this magnet. With every degree above norm, the magnet's power momentarily decreases. Do not use this product in hot environments higher than its safe range. Exceeding the critical threshold will cause permanent loss of magnetic properties.

Table 5: Magnet-Magnet interaction (attraction) - forces in the system
MW 6x2 / N38

Gap (mm)	Attraction (kg) (N-S)	Repulsion (kg) (N-N)
0 mm	1.37 kg / 1365.0 g 13.4 N	N/A
2 mm	0.27 kg / 270.0 g 2.6 N	0.25 kg / 252.0 g 2.5 N
5 mm	0.02 kg / 15.0 g 0.1 N	0.01 kg / 14.0 g 0.1 N
10 mm	0.00 kg / 0.0 g 0.0 N	0.00 kg / 0.0 g 0.0 N
20 mm	0.00 kg / 0.0 g 0.0 N	0.00 kg / 0.0 g 0.0 N
50 mm	0.00 kg / 0.0 g 0.0 N	0.00 kg / 0.0 g 0.0 N

Two strong neodymiums interact from a wider radius than a magnet and sheet combination. The setup of two magnets produces a massive flux and a wider radius of performance. Want to build a solid fastener? Utilize two neodymiums instead of one magnet and a steel. Remember that when attracting two neodymiums, the pinch force is massive. The levitation is marginally weaker than the connection force, but still large.

Table 6: 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
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)	0.5 cm
HDD hard drive	600 Gs (60.0 mT)	0.5 cm

Powerful magnet radiation is a real danger to electronics and medical implants. These magnets produce a field that disrupts operation of digital equipment. Notice: the unseen radiation acts through matter and plastic. Exceptional care must be taken by people with hearing aids and insulin pumps. Influence will be felt by: automatic timepieces, car keys, membranes, and screens. Do not bring the product near payment cards, hard drives, or precise measuring instruments.

Table 7: Impact energy (cracking risk) - collision effects
MW 6x2 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	46.96 km/h (13.04 m/s)	0.04 J
30 mm	81.31 km/h (22.59 m/s)	0.11 J
50 mm	104.97 km/h (29.16 m/s)	0.18 J
100 mm	148.45 km/h (41.24 m/s)	0.36 J

Magnetic elements are prone to chipping – a strong collision with metal causes immediate chipping. Watch the impact speed – a magnet released freely speeds with massive force. Striking energy can trigger coating fragments or injury to skin. Always hold the magnet during installation so it doesn't hit violently against the metal. A contact at a velocity of dozens of km/h almost guarantees destruction of the magnet. Wear eye protection when playing with large magnets.

Table 8: Coating parameters (durability)
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)

Neodymium magnets are highly susceptible to corrosion without proper protection. Improper coating selection is the most common cause of magnet failure over time.

Table 9: Physics of underwater searching
MW 6x2 / N38

Environment	Effective steel pull	Effect
Air (land)	0.91 kg	Standard
Water (riverbed)	1.04 kg (+0.13 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.

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MPL 3x3x2 / N38 - lamellar magnet

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UMP 75x25 [M10x3] GW F200 PLATINIUM / N52 - search holder

270.00 ZŁ brutto / pcs

The offered product is an incredibly powerful cylindrical magnet, composed of durable NdFeB material, which, with dimensions of Ø6x2 mm, guarantees optimal power. The MW 6x2 / N38 model features a tolerance of ±0.1mm and industrial build quality, making it an ideal solution for the most demanding engineers and designers. As a magnetic rod with impressive force (approx. 0.91 kg), this product is in stock from our warehouse in Poland, ensuring rapid order fulfillment. Additionally, its triple-layer Ni-Cu-Ni coating secures it against corrosion in typical operating conditions, guaranteeing an aesthetic appearance and durability for years.

It finds application in DIY projects, advanced automation, and broadly understood industry, serving as a positioning or actuating element. Thanks to the high power of 8.95 N with a weight of only 0.42 g, this cylindrical magnet is indispensable in electronics and wherever every gram matters.

Since our magnets have a very precise dimensions, the recommended way is to glue them into holes with a slightly larger diameter (e.g., 6.1 mm) using epoxy glues. To ensure stability in automation, specialized industrial adhesives are used, which do not react with the nickel coating and fill the gap, guaranteeing high repeatability of the connection.

Magnets NdFeB grade N38 are suitable 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 (Ø6x2), 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 Ø6x2 mm, which, at a weight of 0.42 g, makes it an element with impressive magnetic energy density. The key parameter here is the holding force amounting to approximately 0.91 kg (force ~8.95 N), which, with such compact dimensions, proves the high power of the NdFeB material. 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. 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 durability, neodymium magnets are valued for these benefits:

They retain attractive force for nearly 10 years – the loss is just ~1% (according to analyses),
Magnets very well resist against demagnetization caused by foreign field sources,
By covering with a decorative coating of nickel, the element gains an proper look,
The surface of neodymium magnets generates a intense magnetic field – this is a distinguishing feature,
Due to their durability and thermal resistance, neodymium magnets can operate (depending on the form) even at high temperatures reaching 230°C or more...
In view of the potential of accurate forming and adaptation to specialized projects, neodymium magnets can be manufactured in a wide range of shapes and sizes, which expands the range of possible applications,
Versatile presence in electronics industry – they are utilized in hard drives, motor assemblies, advanced medical instruments, also multitasking production systems.
Compactness – despite small sizes they generate large force, making them ideal for precision applications

Disadvantages of NdFeB magnets:

Susceptibility to cracking is one of their disadvantages. Upon strong impact they can fracture. We advise keeping them in a special holder, which not only secures them against impacts but also raises their durability
Neodymium magnets lose their power under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
They oxidize in a humid environment - during use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
Due to limitations in realizing threads and complex shapes in magnets, we propose using a housing - magnetic mount.
Possible danger to health – tiny shards of magnets can be dangerous, in case of ingestion, which becomes key in the context of child safety. Furthermore, small elements of these devices are able to disrupt the diagnostic process medical when they are in the body.
With budget limitations the cost of neodymium magnets is a challenge,

Maximum holding power of the magnet – what contributes to it?

The declared magnet strength represents the maximum value, measured under ideal test conditions, namely:

using a sheet made of high-permeability steel, functioning as a ideal flux conductor
whose thickness reaches at least 10 mm
characterized by smoothness
without any clearance between the magnet and steel
for force applied at a right angle (in the magnet axis)
at room temperature

Key elements affecting lifting force

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

Air gap (betwixt the magnet and the metal), since even a microscopic distance (e.g. 0.5 mm) leads to a drastic drop in force by up to 50% (this also applies to paint, rust or dirt).
Force direction – remember that the magnet holds strongest perpendicularly. Under sliding down, the holding force drops significantly, often to levels of 20-30% of the nominal value.
Substrate thickness – for full efficiency, the steel must be sufficiently thick. Paper-thin metal restricts the attraction force (the magnet "punches through" it).
Material composition – different alloys reacts the same. Alloy additives weaken the attraction effect.
Surface condition – ground elements ensure maximum contact, which improves force. Rough surfaces reduce efficiency.
Temperature – heating the magnet results in weakening of induction. It is worth remembering the thermal limit for a given model.

* Lifting capacity was assessed with the use of a smooth steel plate of optimal thickness (min. 20 mm), under vertically applied force, in contrast under attempts to slide the magnet the load capacity is reduced by as much as 75%. Additionally, even a small distance {between} the magnet and the plate reduces the lifting capacity.

H&S for magnets

Health Danger

Warning for patients: Strong magnetic fields affect electronics. Maintain at least 30 cm distance or ask another person to handle the magnets.

Danger to the youngest

NdFeB magnets are not toys. Swallowing a few magnets may result in them pinching intestinal walls, which poses a critical condition and requires immediate surgery.

Finger safety

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

Impact on smartphones

Note: neodymium magnets produce a field that confuses sensitive sensors. Maintain a safe distance from your mobile, device, and GPS.

Fire risk

Machining of NdFeB material carries a risk of fire hazard. Magnetic powder oxidizes rapidly with oxygen and is difficult to extinguish.

Permanent damage

Do not overheat. NdFeB magnets are susceptible to temperature. If you require resistance above 80°C, inquire about HT versions (H, SH, UH).

Avoid contact if allergic

Medical facts indicate that the nickel plating (the usual finish) is a strong allergen. For allergy sufferers, avoid touching magnets with bare hands or opt for encased magnets.

Risk of cracking

NdFeB magnets are ceramic materials, meaning they are fragile like glass. Impact of two magnets leads to them cracking into shards.

Do not underestimate power

Before use, check safety instructions. Uncontrolled attraction can destroy the magnet or hurt your hand. Be predictive.

Cards and drives

Data protection: Neodymium magnets can damage data carriers and sensitive devices (pacemakers, hearing aids, mechanical watches).

Warning!

Want to know more? Read our article: 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

Engineering simulation of the magnet - report

Other proposals

MP 25x8x5 / N38 - ring magnet

MPL 3x3x2 / N38 - lamellar magnet

SM 25x100 [2xM8] / N42 - magnetic separator

UMP 75x25 [M10x3] GW F200 PLATINIUM / N52 - search holder

Pros as well as cons of rare earth magnets.

Maximum holding power of the magnet – what contributes to it?

Key elements affecting lifting force

H&S for magnets

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C