Product available Ships tomorrow

MW 3x6 / 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: PLN 1-6500
Rating: 5

cylindrical magnet

Catalog no 010065

GTIN/EAN: 5906301810643

5.00

Diameter Ø

3 mm [±0,1 mm]

Height

6 mm [±0,1 mm]

Weight

0.32 g

Magnetization Direction

↑ axial

Load capacity

0.20 kg / 1.95 N

Magnetic Induction

598.96 mT / 5990 Gs

Coating

[NiCuNi] Nickel

view technical specifications »

0.295 ZŁ with VAT / pcs + price for transport

0.240 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs

0.240 ZŁ

0.295 ZŁ

price from 2500 pcs

0.226 ZŁ

0.277 ZŁ

price from 10500 pcs

0.211 ZŁ

0.260 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Need advice?

Contact us by phone +48 888 99 98 98 or let us know by means of inquiry form through our site.
Force as well as form of a magnet can be analyzed with our modular calculator.

Order by 14:00 and we’ll ship today!

Detailed specification - MW 3x6 / N38 - cylindrical magnet

Specification / characteristics - MW 3x6 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010065
GTIN/EAN	5906301810643
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	3 mm [±0,1 mm]
Height	6 mm [±0,1 mm]
Weight	0.32 g
Magnetization Direction	↑ axial
Load capacity ~ ?	0.20 kg / 1.95 N
Magnetic Induction ~ ?	598.96 mT / 5990 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 3x6 / 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 information are the result of a mathematical simulation. Results are based on algorithms for the material Nd₂Fe₁₄B. Operational conditions may differ from theoretical values. Use these data as a preliminary roadmap when designing systems.

Table 1: Static force (force vs distance) - characteristics
MW 3x6 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	5974 Gs 597.4 mT	0.20 kg / 0.44 pounds 200.0 g / 2.0 N	weak grip
1 mm	2623 Gs 262.3 mT	0.04 kg / 0.09 pounds 38.6 g / 0.4 N	weak grip
2 mm	1134 Gs 113.4 mT	0.01 kg / 0.02 pounds 7.2 g / 0.1 N	weak grip
3 mm	570 Gs 57.0 mT	0.00 kg / 0.00 pounds 1.8 g / 0.0 N	weak grip
5 mm	205 Gs 20.5 mT	0.00 kg / 0.00 pounds 0.2 g / 0.0 N	weak grip
10 mm	42 Gs 4.2 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	weak grip
15 mm	15 Gs 1.5 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	weak grip
20 mm	7 Gs 0.7 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	weak grip
30 mm	2 Gs 0.2 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	weak grip
50 mm	1 Gs 0.1 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	weak grip

Magnetic force decreases sharply per each millimeter of spacing. Note that every additional insulation layer (e.g., contamination, paint, dust) significantly reduces the pull force. Magnets work optimally in perfect adhesion; gap drastically cuts the force. Notice how flashily the pull force fall, when the magnet does not touch tightly to the steel surface. When calculating the mounting, eliminate unnecessary gaps.

Table 2: Vertical capacity (vertical surface)
MW 3x6 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.04 kg / 0.09 pounds 40.0 g / 0.4 N
1 mm	Stal (~0.2)	0.01 kg / 0.02 pounds 8.0 g / 0.1 N
2 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 2.0 g / 0.0 N
3 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N
5 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N
10 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N
15 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N
20 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N
30 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N

The following data indicates the estimated holding capacity sufficient to initiate the slippage of the magnet vertically against a upright metal surface (assuming standard friction). This parameter depends on the distance between the magnet and the surface.

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 3x6 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.06 kg / 0.13 pounds 60.0 g / 0.6 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.04 kg / 0.09 pounds 40.0 g / 0.4 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.02 kg / 0.04 pounds 20.0 g / 0.2 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.10 kg / 0.22 pounds 100.0 g / 1.0 N

When mounting a magnet on a upright surface (e.g., a car body), it you can count on only approx. 1/5 of its maximum pull force. Gravity and a low friction coefficient mean that holders slide down easier than they pop off the substrate. Want to create a wall mount? Consider that the sliding force is much weaker than the perpendicular breakaway force. On a slippery surface, the holder will slip down under a much lighter cargo. Using a rubber pad can significantly increase the grip.

Table 4: Steel thickness (saturation) - power losses
MW 3x6 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.02 kg / 0.04 pounds 20.0 g / 0.2 N
1 mm	25%	0.05 kg / 0.11 pounds 50.0 g / 0.5 N
2 mm	50%	0.10 kg / 0.22 pounds 100.0 g / 1.0 N
3 mm	75%	0.15 kg / 0.33 pounds 150.0 g / 1.5 N
5 mm	100%	0.20 kg / 0.44 pounds 200.0 g / 2.0 N
10 mm	100%	0.20 kg / 0.44 pounds 200.0 g / 2.0 N
11 mm	100%	0.20 kg / 0.44 pounds 200.0 g / 2.0 N
12 mm	100%	0.20 kg / 0.44 pounds 200.0 g / 2.0 N

A thin sheet cannot focus the full magnetic flux, which wastes potential of the magnet. If you attach a powerful product to a too thin substrate, the magnetism will pass right through and the attraction force will be weaker. To squeeze 100% of this neodymium's potential, you need a suitably thick piece of steel. The saturation phenomenon means that on thin elements (e.g., car bodies), the magnet holds weaker. We suggest choosing the steel dimension according to the table below.

Table 5: Thermal resistance (stability) - resistance threshold
MW 3x6 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	0.20 kg / 0.44 pounds 200.0 g / 2.0 N	OK
40 °C	-2.2%	0.20 kg / 0.43 pounds 195.6 g / 1.9 N	OK
60 °C	-4.4%	0.19 kg / 0.42 pounds 191.2 g / 1.9 N	OK
80 °C	-6.6%	0.19 kg / 0.41 pounds 186.8 g / 1.8 N
100 °C	-28.8%	0.14 kg / 0.31 pounds 142.4 g / 1.4 N

Ordinary NdFeB products lose strength above the temperature limit. Avoid high temperatures – heat can permanently damage this magnet. As the temperature rises, the neodymium's power momentarily decreases. Refrain from using this magnet in hot environments exceeding its safe range. Ignoring the limit will cause irreversible degradation of magnetic properties.

*Technical advisory: Heat tolerance is determined by both grade, and the Permeance Coefficient Pc. Low-profile magnets (pancake types) are more susceptible to demagnetization under lower heat stress than long magnets. Red status in the table indicates permanent field degradation for this specific geometry.

Table 6: Two magnets (attraction) - forces in the system
MW 3x6 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	1.56 kg / 3.43 pounds 6 111 Gs	0.23 kg / 0.51 pounds 233 g / 2.3 N	N/A
1 mm	0.73 kg / 1.60 pounds 8 161 Gs	0.11 kg / 0.24 pounds 109 g / 1.1 N	0.65 kg / 1.44 pounds ~0 Gs
2 mm	0.30 kg / 0.66 pounds 5 246 Gs	0.04 kg / 0.10 pounds 45 g / 0.4 N	0.27 kg / 0.60 pounds ~0 Gs
3 mm	0.13 kg / 0.28 pounds 3 391 Gs	0.02 kg / 0.04 pounds 19 g / 0.2 N	0.11 kg / 0.25 pounds ~0 Gs
5 mm	0.03 kg / 0.06 pounds 1 578 Gs	0.00 kg / 0.01 pounds 4 g / 0.0 N	0.02 kg / 0.05 pounds ~0 Gs
10 mm	0.00 kg / 0.00 pounds 409 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
20 mm	0.00 kg / 0.00 pounds 83 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
50 mm	0.00 kg / 0.00 pounds 8 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
60 mm	0.00 kg / 0.00 pounds 5 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
70 mm	0.00 kg / 0.00 pounds 3 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
80 mm	0.00 kg / 0.00 pounds 2 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
90 mm	0.00 kg / 0.00 pounds 2 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
100 mm	0.00 kg / 0.00 pounds 1 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs

Two magnets interact from a wider radius than a magnet and steel setup. The connection of two magnets produces a massive flux and a wider radius of action. Want to build a solid fastener? Apply two magnets instead of one magnet and a striker plate. Remember that when attracting two neodymiums, the impact force is huge. The levitation is a bit weaker than the connection force, but still impressive.
*Field value in repulsion mode reaches ~0 Gs at the geometric center of the gap (caused by magnetic field nullification).
Attention: Calculations show sliding force of a pair of matching magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Safety (HSE) (electronics) - warnings
MW 3x6 / N38

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

Extremely neodym field is a serious hazard to IT equipment as well as pacemakers. These NdFeB products produce a flux that prevents correct functioning of sensitive medical devices. Be aware: the invisible magnetic field acts through matter and plastic. Exceptional care must be taken by people with hearing aids and drug dispensers. The risk also applies to: mechanical watches, car keys, speakers, and displays. Do not bring the product near payment cards, hard drives, or sensitive navigation tools.

Table 8: Collisions (cracking risk) - collision effects
MW 3x6 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	25.21 km/h (7.00 m/s)	0.01 J
30 mm	43.67 km/h (12.13 m/s)	0.02 J
50 mm	56.38 km/h (15.66 m/s)	0.04 J
100 mm	79.73 km/h (22.15 m/s)	0.08 J

Neodymium magnets are delicate – a collision with steel causes immediate chipping. Watch the impact speed – a magnet released freely becomes dangerous. Impact energy can cause material chips or dangerous crushing to skin. Hold the magnet firmly during bringing near metal so it doesn't hit violently against the metal. A collision at high speed ends with a crack of the magnet. Wear eye protection when working with large magnets.

Table 9: Corrosion resistance
MW 3x6 / 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 3x6 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	470 Mx	4.7 µWb
P_c Coefficient	1.21	High (Stable)

Flux value passing through the pole surface. Key data when building generators as well as sensors. The P_c coefficient defines the working geometry.

Table 11: Physics of underwater searching
MW 3x6 / N38

Environment	Effective steel pull	Effect
Air (land)	0.20 kg	Standard
Water (riverbed)	0.23 kg (+0.03 kg buoyancy gain)	+14.5%

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

Contrary to myths, water does not block the magnetic field. However, remember the water resistance when pulling the rope quickly.

1. Sliding resistance

*Warning: On a vertical wall, the magnet holds merely a fraction of its perpendicular strength.

2. Plate thickness effect

*Thin metal sheet (e.g. 0.5mm PC 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) = 1.21

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.

Technical and environmental data

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: 010065-2026

Magnet Unit Converter

Pulling force

Kilograms (kg)

Newtons (N)

lbs

Magnetic Induction

Insert a number in a box, to see all other values change automatically.

See more products

Product available Ships tomorrow

UMP 97x40 [M8+M10] GW F300 kg / N38 - search holder

300.00 ZŁ brutto / pcs

Product available Ships tomorrow

UMT 12x20 green / N38 - board holder

1.894 ZŁ brutto / pcs

Product available Ships tomorrow

SM 32x100 [2xM8] / N42 - magnetic separator

307.50 ZŁ brutto / pcs

Product available Ships tomorrow

SM 25x325 [2xM8] / N42 - magnetic separator

910.20 ZŁ brutto / pcs

This product is an extremely powerful cylindrical magnet, composed of durable NdFeB material, which, with dimensions of Ø3x6 mm, guarantees maximum efficiency. The MW 3x6 / N38 component is characterized by 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. 0.20 kg), this product is available off-the-shelf from our European logistics center, ensuring quick order fulfillment. Furthermore, 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 modeling, advanced robotics, and broadly understood industry, serving as a positioning or actuating element. Thanks to the pull force of 1.95 N with a weight of only 0.32 g, this cylindrical magnet is indispensable in miniature devices and wherever low weight is crucial.

Since our magnets have a very precise dimensions, the recommended way is to glue them into holes with a slightly larger diameter (e.g., 3.1 mm) using epoxy glues. To ensure long-term durability in automation, specialized industrial adhesives are used, which are safe for nickel and fill the gap, guaranteeing high repeatability of the connection.

Magnets N38 are suitable for 90% of applications in automation and machine building, where extreme miniaturization with maximum force is not required. If you need even stronger magnets in the same volume (Ø3x6), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our store.

This model is characterized by dimensions Ø3x6 mm, which, at a weight of 0.32 g, makes it an element with high magnetic energy density. The key parameter here is the lifting capacity amounting to approximately 0.20 kg (force ~1.95 N), which, with such compact 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.

This cylinder is magnetized axially (along the height of 6 mm), which means that the N and S poles are located on the flat, circular surfaces. Such an arrangement is standard 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 diametrically if your project requires it.

Pros as well as cons of neodymium magnets.

Advantages

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

They have stable power, and over more than 10 years their attraction force decreases symbolically – ~1% (according to theory),
They feature excellent resistance to weakening of magnetic properties when exposed to external magnetic sources,
By applying a reflective coating of silver, the element gains an proper look,
Neodymium magnets generate maximum magnetic induction on a small area, which allows for strong attraction,
Through (adequate) combination of ingredients, they can achieve high thermal strength, allowing for operation at temperatures reaching 230°C and above...
Possibility of exact modeling as well as adapting to complex requirements,
Huge importance in future technologies – they find application in mass storage devices, drive modules, medical equipment, and other advanced devices.
Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in compact dimensions, which allows their use in small systems

Weaknesses

Problematic aspects of neodymium magnets and proposals for their use:

They are prone to damage upon too strong impacts. To avoid cracks, it is worth protecting magnets in a protective case. Such protection not only shields the magnet but also increases its resistance to damage
When exposed to high temperature, neodymium magnets suffer a drop in power. Often, when the temperature exceeds 80°C, their power 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
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 forms in magnets, we recommend using cover - magnetic mechanism.
Health risk resulting from small fragments of magnets can be dangerous, if swallowed, which gains importance in the context of child safety. It is also worth noting that small components of these devices can be problematic in diagnostics medical after entering the body.
With mass production the cost of neodymium magnets is a challenge,

Lifting parameters

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

The load parameter shown refers to the peak performance, measured under optimal environment, meaning:

with the use of a yoke made of special test steel, ensuring maximum field concentration
possessing a massiveness of min. 10 mm to ensure full flux closure
with a plane cleaned and smooth
with zero gap (no coatings)
for force acting at a right angle (pull-off, not shear)
at ambient temperature room level

Magnet lifting force in use – key factors

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

Distance (between the magnet and the metal), since even a very small clearance (e.g. 0.5 mm) results in a decrease in force by up to 50% (this also applies to paint, corrosion or dirt).
Pull-off angle – remember that the magnet holds strongest perpendicularly. Under sliding down, the holding force drops drastically, often to levels of 20-30% of the maximum value.
Steel thickness – too thin steel does not accept the full field, causing part of the power to be wasted into the air.
Material composition – not every steel reacts the same. Alloy additives worsen the interaction with the magnet.
Smoothness – ideal contact is obtained only on smooth steel. Rough texture create air cushions, reducing force.
Temperature influence – high temperature reduces magnetic field. Exceeding the limit temperature can permanently demagnetize the magnet.

Lifting capacity was assessed by applying a steel plate with a smooth surface of optimal thickness (min. 20 mm), under vertically applied force, however under shearing force the load capacity is reduced by as much as 75%. Additionally, even a slight gap between the magnet and the plate lowers the load capacity.

H&S for magnets

Material brittleness

Neodymium magnets are sintered ceramics, which means they are fragile like glass. Collision of two magnets leads to them shattering into shards.

Warning for allergy sufferers

Medical facts indicate that the nickel plating (the usual finish) is a common allergen. If you have an allergy, prevent touching magnets with bare hands and choose versions in plastic housing.

Immense force

Handle magnets with awareness. Their powerful strength can surprise even experienced users. Be vigilant and respect their force.

Heat sensitivity

Watch the temperature. Heating the magnet to high heat will destroy its magnetic structure and pulling force.

Medical interference

Life threat: Strong magnets can deactivate heart devices and defibrillators. Do not approach if you have medical devices.

Precision electronics

GPS units and smartphones are extremely sensitive to magnetic fields. Close proximity with a powerful NdFeB magnet can decalibrate the internal compass in your phone.

Serious injuries

Risk of injury: The attraction force is so immense that it can cause blood blisters, crushing, and even bone fractures. Protective gloves are recommended.

Flammability

Combustion risk: Rare earth powder is explosive. Avoid machining magnets in home conditions as this may cause fire.

This is not a toy

NdFeB magnets are not intended for children. Swallowing multiple magnets may result in them connecting inside the digestive tract, which constitutes a critical condition and requires immediate surgery.

Threat to electronics

Device Safety: Neodymium magnets can damage data carriers and sensitive devices (heart implants, hearing aids, timepieces).

Caution! Learn more about hazards in the article: Magnet Safety Guide.

MW 3x6 / N38 - cylindrical magnet

Detailed specification - MW 3x6 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical modeling of the assembly - data

Table 1: Static force (force vs distance) - characteristics MW 3x6 / N38

Table 2: Vertical capacity (vertical surface) MW 3x6 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces MW 3x6 / N38

Table 4: Steel thickness (saturation) - power losses MW 3x6 / N38

Table 5: Thermal resistance (stability) - resistance threshold MW 3x6 / N38

Table 6: Two magnets (attraction) - forces in the system MW 3x6 / N38

Table 7: Safety (HSE) (electronics) - warnings MW 3x6 / N38

Table 8: Collisions (cracking risk) - collision effects MW 3x6 / N38

Table 9: Corrosion resistance MW 3x6 / N38

Table 10: Construction data (Flux) MW 3x6 / N38

Table 11: Physics of underwater searching MW 3x6 / N38

1. Sliding resistance

2. Plate thickness effect

3. Temperature resistance

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

Material specification

Environmental data

Pulling force

Magnetic Induction

See more products

UMP 97x40 [M8+M10] GW F300 kg / N38 - search holder

UMT 12x20 green / N38 - board holder

SM 32x100 [2xM8] / N42 - magnetic separator

SM 25x325 [2xM8] / N42 - magnetic separator

Pros as well as cons of neodymium magnets.

Advantages

Weaknesses

Lifting parameters

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

Magnet lifting force in use – key factors

H&S for magnets

Material brittleness

Warning for allergy sufferers

Immense force

Heat sensitivity

Medical interference

Precision electronics

Serious injuries

Flammability

This is not a toy

Threat to electronics

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs distance) - characteristics
MW 3x6 / N38

Table 2: Vertical capacity (vertical surface)
MW 3x6 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 3x6 / N38

Table 4: Steel thickness (saturation) - power losses
MW 3x6 / N38

Table 5: Thermal resistance (stability) - resistance threshold
MW 3x6 / N38

Table 6: Two magnets (attraction) - forces in the system
MW 3x6 / N38

Table 7: Safety (HSE) (electronics) - warnings
MW 3x6 / N38

Table 8: Collisions (cracking risk) - collision effects
MW 3x6 / N38

Table 9: Corrosion resistance
MW 3x6 / N38

Table 10: Construction data (Flux)
MW 3x6 / N38

Table 11: Physics of underwater searching
MW 3x6 / N38