Product available Ships tomorrow

MW 8x8 / N38 - cylindrical magnet

Name: Dhit sp. z o.o.
Address: Kościuszki 6A, Ożarów Mazowiecki, mazowieckie, 05-850, PL
Telephone: +48 22 499 98 98
Price range: 1-6500 PLN

cylindrical magnet

Catalog no 010106

GTIN/EAN: 5906301811053

5.00

Diameter Ø

8 mm [±0,1 mm]

Height

8 mm [±0,1 mm]

Weight

3.02 g

Magnetization Direction

↑ axial

Load capacity

2.03 kg / 19.92 N

Magnetic Induction

553.67 mT / 5537 Gs

Coating

[NiCuNi] Nickel

technical parameters »

1.341 ZŁ with VAT / pcs + price for transport

1.090 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs

1.090 ZŁ

1.341 ZŁ

price from 600 pcs

1.025 ZŁ

1.260 ZŁ

price from 2300 pcs

0.959 ZŁ

1.180 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Engineering report for this magnet

Full PDF analysis: pull and shear force, effect of distance, temperature and plate thickness, safety distances and the demagnetization curve.

PDF report Calculator

Looking for a better price?

Contact us by phone +48 888 99 98 98 or get in touch by means of our online form our website.
Weight as well as structure of neodymium magnets can be calculated using our magnetic calculator.

Orders submitted before 14:00 will be dispatched today!

Technical - MW 8x8 / N38 - cylindrical magnet

Specification / characteristics - MW 8x8 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010106
GTIN/EAN	5906301811053
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	8 mm [±0,1 mm]
Height	8 mm [±0,1 mm]
Weight	3.02 g
Magnetization Direction	↑ axial
Load capacity ~ ?	2.03 kg / 19.92 N
Magnetic Induction ~ ?	553.67 mT / 5537 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 8x8 / 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

Engineering analysis of the magnet - technical parameters

These values represent the result of a mathematical simulation. Results were calculated on models for the class Nd₂Fe₁₄B. Actual parameters may differ from theoretical values. Use these data as a preliminary roadmap during assembly planning.

Table 1: Static force (force vs distance) - power drop
MW 8x8 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	5531 Gs 553.1 mT	2.03 kg / 4.48 pounds 2030.0 g / 19.9 N	warning
1 mm	4162 Gs 416.2 mT	1.15 kg / 2.53 pounds 1149.3 g / 11.3 N	weak grip
2 mm	2984 Gs 298.4 mT	0.59 kg / 1.30 pounds 590.7 g / 5.8 N	weak grip
3 mm	2107 Gs 210.7 mT	0.29 kg / 0.65 pounds 294.5 g / 2.9 N	weak grip
5 mm	1084 Gs 108.4 mT	0.08 kg / 0.17 pounds 78.0 g / 0.8 N	weak grip
10 mm	296 Gs 29.6 mT	0.01 kg / 0.01 pounds 5.8 g / 0.1 N	weak grip
15 mm	118 Gs 11.8 mT	0.00 kg / 0.00 pounds 0.9 g / 0.0 N	weak grip
20 mm	58 Gs 5.8 mT	0.00 kg / 0.00 pounds 0.2 g / 0.0 N	weak grip
30 mm	20 Gs 2.0 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	weak grip
50 mm	5 Gs 0.5 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	weak grip

Magnetic force decreases drastically per each millimeter of gap. Keep in mind that even a microscopic distance (e.g., dirt, varnish, dust) significantly reduces the pull force. Magnets operate most effectively at the point of direct contact; distance kills the force. Observe how quickly the parameters fall, when the product does not adhere flatly to the metal substrate. When calculating the mounting, discard additional spacers.

Table 2: Sliding load (wall)
MW 8x8 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.41 kg / 0.90 pounds 406.0 g / 4.0 N
1 mm	Stal (~0.2)	0.23 kg / 0.51 pounds 230.0 g / 2.3 N
2 mm	Stal (~0.2)	0.12 kg / 0.26 pounds 118.0 g / 1.2 N
3 mm	Stal (~0.2)	0.06 kg / 0.13 pounds 58.0 g / 0.6 N
5 mm	Stal (~0.2)	0.02 kg / 0.04 pounds 16.0 g / 0.2 N
10 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 2.0 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

This section indicates the theoretical shear load required to cause the shifting of the magnet downwards on a vertical steel plate (assuming standard friction). This value varies with the distance between the magnet and the metal.

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 8x8 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.61 kg / 1.34 pounds 609.0 g / 6.0 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.41 kg / 0.90 pounds 406.0 g / 4.0 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.20 kg / 0.45 pounds 203.0 g / 2.0 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	1.02 kg / 2.24 pounds 1015.0 g / 10.0 N

When mounting a element on a upright wall (e.g., a fridge), it will maintain just approx. 1/5 of nominal attraction strength. Gravitational force as well as a low friction coefficient influence the fact that products slip faster than they detach. Planning a hanger? Consider that the sliding force is significantly lower than the maximum static pull force. On a smooth steel, the element will slide down under a significantly smaller weight. Application of an anti-slip layer can drastically raise the stability.

Table 4: Steel thickness (saturation) - sheet metal selection
MW 8x8 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.20 kg / 0.45 pounds 203.0 g / 2.0 N
1 mm	25%	0.51 kg / 1.12 pounds 507.5 g / 5.0 N
2 mm	50%	1.02 kg / 2.24 pounds 1015.0 g / 10.0 N
3 mm	75%	1.52 kg / 3.36 pounds 1522.5 g / 14.9 N
5 mm	100%	2.03 kg / 4.48 pounds 2030.0 g / 19.9 N
10 mm	100%	2.03 kg / 4.48 pounds 2030.0 g / 19.9 N
11 mm	100%	2.03 kg / 4.48 pounds 2030.0 g / 19.9 N
12 mm	100%	2.03 kg / 4.48 pounds 2030.0 g / 19.9 N

A thin sheet is incapable of absorb the entire magnetic field, which wastes potential of the holder. If you attach a powerful product to a too thin substrate, the magnetism will penetrate right through and the pull force will drop sharply. To squeeze 100% of this neodymium's potential, you require a sufficiently solid piece of metal. The saturation effect causes that on thin elements (e.g., car bodies), the magnet works worse. We advise picking the steel dimension based on the following data.

Table 5: Thermal resistance (stability) - power drop
MW 8x8 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	2.03 kg / 4.48 pounds 2030.0 g / 19.9 N	OK
40 °C	-2.2%	1.99 kg / 4.38 pounds 1985.3 g / 19.5 N	OK
60 °C	-4.4%	1.94 kg / 4.28 pounds 1940.7 g / 19.0 N	OK
80 °C	-6.6%	1.90 kg / 4.18 pounds 1896.0 g / 18.6 N
100 °C	-28.8%	1.45 kg / 3.19 pounds 1445.4 g / 14.2 N

Classic neodymiums change their properties power above the temperature limit. Protect against heat – excessive heat can irreversibly demagnetize this product. With increasing heat, the magnet's capacity briefly lowers. Do not use this product in hot environments higher than its safe range. Ignoring the limit will lead to destruction of magnetic properties.

*Technical advisory: Temperature resistance depends not only on the material grade, as well as the dimension ratios. Flat magnets (pancake types) are more susceptible to demagnetization under lower heat stress than long magnets. The danger warning in the table signals permanent field degradation for this particular item.

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MW 8x8 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	9.48 kg / 20.90 pounds 6 000 Gs	1.42 kg / 3.14 pounds 1422 g / 14.0 N	N/A
1 mm	7.26 kg / 16.01 pounds 9 682 Gs	1.09 kg / 2.40 pounds 1089 g / 10.7 N	6.54 kg / 14.41 pounds ~0 Gs
2 mm	5.37 kg / 11.83 pounds 8 324 Gs	0.81 kg / 1.78 pounds 805 g / 7.9 N	4.83 kg / 10.65 pounds ~0 Gs
3 mm	3.88 kg / 8.55 pounds 7 074 Gs	0.58 kg / 1.28 pounds 582 g / 5.7 N	3.49 kg / 7.69 pounds ~0 Gs
5 mm	1.95 kg / 4.30 pounds 5 016 Gs	0.29 kg / 0.64 pounds 292 g / 2.9 N	1.75 kg / 3.87 pounds ~0 Gs
10 mm	0.36 kg / 0.80 pounds 2 169 Gs	0.05 kg / 0.12 pounds 55 g / 0.5 N	0.33 kg / 0.72 pounds ~0 Gs
20 mm	0.03 kg / 0.06 pounds 592 Gs	0.00 kg / 0.01 pounds 4 g / 0.0 N	0.02 kg / 0.05 pounds ~0 Gs
50 mm	0.00 kg / 0.00 pounds 66 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 41 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 27 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 19 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 14 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 10 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs

Two strong neodymiums attract each other from a significantly greater distance than a magnet and sheet setup. Such a system of magnet-to-magnet generates a stronger field and a further horizon of performance. Designing a powerful holder? Utilize two neodymiums instead of a neodymium and a steel. Remember that when attracting two neodymiums, the impact force is huge. The repulsion force is a bit weaker than the attraction, but still impressive.
*The magnetic induction for N-N configuration is approximately ~0 Gs in the exact middle of the gap (due to field cancellation).
Attention: Figures refer to friction force of dual identical magnets (friction coefficient ~0.15 for Ni-Ni plating).

Table 7: Safety (HSE) (electronics) - precautionary measures
MW 8x8 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	5.5 cm
Hearing aid	10 Gs (1.0 mT)	4.0 cm
Mechanical watch	20 Gs (2.0 mT)	3.5 cm
Phone / Smartphone	40 Gs (4.0 mT)	2.5 cm
Remote	50 Gs (5.0 mT)	2.5 cm
Payment card	400 Gs (40.0 mT)	1.0 cm
HDD hard drive	600 Gs (60.0 mT)	1.0 cm

A strong magnetic field poses a real danger to electronic devices as well as pacemakers. These neodymiums produce a field that prevents correct functioning of digital equipment. Be aware: the unseen radiation acts through matter and housings. Exceptional care must be exercised by people with cochlear implants and drug dispensers. Influence will be felt by: automatic timepieces, remotes, speakers, and displays. Avoid contact with magnetic cards, hard drives, or sensitive navigation tools.

Table 8: Collisions (kinetic energy) - collision effects
MW 8x8 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	26.19 km/h (7.28 m/s)	0.08 J
30 mm	45.29 km/h (12.58 m/s)	0.24 J
50 mm	58.47 km/h (16.24 m/s)	0.40 J
100 mm	82.68 km/h (22.97 m/s)	0.80 J

NdFeB products are very brittle – a strong collision with metal can result in shattering. Control the attraction moment – a neodymium left loose turns into a projectile. Kinetic force can trigger coating fragments or injury to fingers. Be sure to control the product during bringing near metal so it doesn't slam with momentum against the metal. A contact at a velocity of dozens of km/h means shattering of the neodymium. Wear eye protection when working with powerful specimens.

Table 9: Surface protection spec
MW 8x8 / 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. Note the thickness of the protective layer.

Table 10: Construction data (Flux)
MW 8x8 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	2 868 Mx	28.7 µWb
P_c Coefficient	0.89	High (Stable)

Total magnetic flux passing through the magnet pole. Essential parameter when building generators and motors. P_c value defines the magnet's operating point.

Table 11: Submerged application
MW 8x8 / N38

Environment	Effective steel pull	Effect
Air (land)	2.03 kg	Standard
Water (riverbed)	2.32 kg (+0.29 kg buoyancy gain)	+14.5%

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

The magnetic field penetrates through water without any losses. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Sliding resistance

*Warning: On a vertical wall, the magnet holds merely approx. 20-30% of its nominal pull.

2. Efficiency vs thickness

*Thin steel (e.g. computer case) significantly limits the holding force.

3. Heat tolerance

*For N38 grade, the critical limit is 80°C.

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

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

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

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%

Sustainability

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: 010106-2026

Magnet Unit Converter

Magnet pull force

Newtons (N)

Force in lbs

Field Strength

Induction (T)

Input your value in just one slot to see the conversion for the other units immediately.

Other deals

Product available Ships tomorrow

MP 20x8x6 / N38 - ring magnet

5.17 ZŁ brutto / pcs

Product available Ships tomorrow

UMGGZ 22x6 [M4] GZ / N38 - rubber magnetic holder external thread

7.38 ZŁ brutto / pcs

Product available Ships tomorrow

UMT 12x20 black / N38 - board holder

1.894 ZŁ brutto / pcs

Product available Ships tomorrow

SM 25x400 [2xM8] / N52 - magnetic separator

1205.40 ZŁ brutto / pcs

This product is an exceptionally strong rod magnet, composed of durable NdFeB material, which, with dimensions of Ø8x8 mm, guarantees optimal power. This specific item features an accuracy of ±0.1mm and professional build quality, making it an ideal solution for the most demanding engineers and designers. As a magnetic rod with significant force (approx. 2.03 kg), this product is in stock from our warehouse in Poland, ensuring lightning-fast 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.

This model is ideal for building generators, advanced sensors, and efficient filters, where field concentration on a small surface counts. Thanks to the high power of 19.92 N with a weight of only 3.02 g, this rod is indispensable in miniature devices and wherever every gram matters.

Since our magnets have a tolerance of ±0.1mm, the best method is to glue them into holes with a slightly larger diameter (e.g., 8.1 mm) using epoxy glues. To ensure stability in automation, anaerobic resins are used, which do not react with the nickel coating and fill the gap, guaranteeing high repeatability of the connection.

Grade N38 is the most frequently chosen standard for industrial neodymium magnets, offering an optimal price-to-power ratio and high resistance to demagnetization. If you need even stronger magnets in the same volume (Ø8x8), 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 Ø8x8 mm, which, at a weight of 3.02 g, makes it an element with impressive magnetic energy density. The key parameter here is the lifting capacity amounting to approximately 2.03 kg (force ~19.92 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 8 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 through the diameter if your project requires it.

Advantages as well as disadvantages of neodymium magnets.

Strengths

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

They have stable power, and over nearly ten years their attraction force decreases symbolically – ~1% (in testing),
They are extremely resistant to demagnetization induced by external magnetic fields,
A magnet with a shiny gold surface is more attractive,
Magnetic induction on the working part of the magnet is maximum,
Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the shape) even at high temperatures reaching 230°C or more...
Considering the option of free forming and adaptation to specialized requirements, magnetic components can be created in a broad palette of geometric configurations, which makes them more universal,
Wide application in innovative solutions – they are commonly used in computer drives, drive modules, medical devices, also modern systems.
Thanks to efficiency per cm³, small magnets offer high operating force, occupying minimum space,

Weaknesses

Drawbacks and weaknesses of neodymium magnets and proposals for their use:

Brittleness is one of their disadvantages. Upon intense impact they can break. We advise keeping them in a special holder, which not only secures them against impacts but also increases their durability
Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of strength (a factor is the shape as well as 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 while using outdoors, we recommend using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
We suggest a housing - magnetic mechanism, due to difficulties in producing threads inside the magnet and complex shapes.
Health risk resulting from small fragments of magnets pose a threat, in case of ingestion, which becomes key in the context of child health protection. Additionally, small elements of these magnets are able to be problematic in diagnostics medical in case of swallowing.
High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which can limit application in large quantities

Lifting parameters

Best holding force of the magnet in ideal parameters – what it depends on?

Magnet power was defined for optimal configuration, assuming:

with the contact of a sheet made of special test steel, guaranteeing maximum field concentration
possessing a massiveness of min. 10 mm to ensure full flux closure
with a plane free of scratches
without the slightest insulating layer between the magnet and steel
during pulling in a direction vertical to the mounting surface
at temperature approx. 20 degrees Celsius

Magnet lifting force in use – key factors

Bear in mind that the magnet holding may be lower subject to the following factors, starting with the most relevant:

Space between surfaces – even a fraction of a millimeter of separation (caused e.g. by varnish or unevenness) diminishes the pulling force, often by half at just 0.5 mm.
Pull-off angle – note that the magnet holds strongest perpendicularly. Under sliding down, the holding force drops significantly, often to levels of 20-30% of the maximum value.
Plate thickness – too thin sheet causes magnetic saturation, causing part of the flux to be lost to the other side.
Steel grade – ideal substrate is high-permeability steel. Cast iron may have worse magnetic properties.
Base smoothness – the smoother and more polished the plate, the better the adhesion and higher the lifting capacity. Roughness creates an air distance.
Temperature influence – hot environment weakens pulling force. Exceeding the limit temperature can permanently demagnetize the magnet.

Holding force was measured on the plate surface of 20 mm thickness, when a perpendicular force was applied, whereas under shearing force the lifting capacity is smaller. Moreover, even a slight gap between the magnet’s surface and the plate decreases the holding force.

Safe handling of neodymium magnets

Warning for heart patients

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

Nickel coating and allergies

Some people suffer from a contact allergy to Ni, which is the typical protective layer for NdFeB magnets. Prolonged contact may cause an allergic reaction. We strongly advise use protective gloves.

Precision electronics

Be aware: neodymium magnets generate a field that interferes with precision electronics. Maintain a separation from your phone, tablet, and GPS.

Serious injuries

Pinching hazard: The attraction force is so great that it can cause hematomas, crushing, and even bone fractures. Use thick gloves.

Material brittleness

Neodymium magnets are sintered ceramics, meaning they are fragile like glass. Impact of two magnets leads to them breaking into shards.

Power loss in heat

Watch the temperature. Heating the magnet above 80 degrees Celsius will ruin its properties and strength.

Safe operation

Use magnets consciously. Their powerful strength can surprise even professionals. Stay alert and do not underestimate their force.

Cards and drives

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

Dust is flammable

Machining of neodymium magnets poses a fire hazard. Neodymium dust oxidizes rapidly with oxygen and is hard to extinguish.

Danger to the youngest

NdFeB magnets are not suitable for play. Swallowing a few magnets can lead to them pinching intestinal walls, which poses a critical condition and necessitates urgent medical intervention.

Warning! Need more info? Read our article: Why are neodymium magnets dangerous?

MW 8x8 / N38 - cylindrical magnet

Technical - MW 8x8 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering analysis of the magnet - technical parameters

Table 1: Static force (force vs distance) - power drop MW 8x8 / N38

Table 2: Sliding load (wall) MW 8x8 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces MW 8x8 / N38

Table 4: Steel thickness (saturation) - sheet metal selection MW 8x8 / N38

Table 5: Thermal resistance (stability) - power drop MW 8x8 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system MW 8x8 / N38

Table 7: Safety (HSE) (electronics) - precautionary measures MW 8x8 / N38

Table 8: Collisions (kinetic energy) - collision effects MW 8x8 / N38

Table 9: Surface protection spec MW 8x8 / N38

Table 10: Construction data (Flux) MW 8x8 / N38

Table 11: Submerged application MW 8x8 / N38

1. Sliding resistance

2. Efficiency vs thickness

3. Heat tolerance

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

Material specification

Sustainability

Magnet pull force

Field Strength

Other deals

MP 20x8x6 / N38 - ring magnet

UMGGZ 22x6 [M4] GZ / N38 - rubber magnetic holder external thread

UMT 12x20 black / N38 - board holder

SM 25x400 [2xM8] / N52 - magnetic separator

Advantages as well as disadvantages of neodymium magnets.

Strengths

Weaknesses

Lifting parameters

Best holding force of the magnet in ideal parameters – what it depends on?

Magnet lifting force in use – key factors

Safe handling of neodymium magnets

Warning for heart patients

Nickel coating and allergies

Precision electronics

Serious injuries

Material brittleness

Power loss in heat

Safe operation

Cards and drives

Dust is flammable

Danger to the youngest

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs distance) - power drop
MW 8x8 / N38

Table 2: Sliding load (wall)
MW 8x8 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 8x8 / N38

Table 4: Steel thickness (saturation) - sheet metal selection
MW 8x8 / N38

Table 5: Thermal resistance (stability) - power drop
MW 8x8 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MW 8x8 / N38

Table 7: Safety (HSE) (electronics) - precautionary measures
MW 8x8 / N38

Table 8: Collisions (kinetic energy) - collision effects
MW 8x8 / N38

Table 9: Surface protection spec
MW 8x8 / N38

Table 10: Construction data (Flux)
MW 8x8 / N38

Table 11: Submerged application
MW 8x8 / N38