Product available Ships tomorrow

MW 8x5 / 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 010105

GTIN/EAN: 5906301811046

5.00

Diameter Ø

8 mm [±0,1 mm]

Height

5 mm [±0,1 mm]

Weight

1.88 g

Magnetization Direction

↑ axial

Load capacity

2.17 kg / 21.31 N

Magnetic Induction

483.41 mT / 4834 Gs

Coating

[NiCuNi] Nickel

technical parameters »

0.836 ZŁ with VAT / pcs + price for transport

0.680 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs

0.680 ZŁ

0.836 ZŁ

price from 900 pcs

0.639 ZŁ

0.786 ZŁ

price from 3700 pcs

0.598 ZŁ

0.736 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Want to negotiate?

Give us a call +48 22 499 98 98 otherwise drop us a message via our online form the contact page.
Force as well as structure of a magnet can be calculated on our our magnetic calculator.

Same-day shipping for orders placed before 14:00.

Technical - MW 8x5 / N38 - cylindrical magnet

Specification / characteristics - MW 8x5 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010105
GTIN/EAN	5906301811046
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	5 mm [±0,1 mm]
Weight	1.88 g
Magnetization Direction	↑ axial
Load capacity ~ ?	2.17 kg / 21.31 N
Magnetic Induction ~ ?	483.41 mT / 4834 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 8x5 / 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 analysis of the magnet - technical parameters

Presented data constitute the result of a engineering analysis. Values rely on algorithms for the material Nd₂Fe₁₄B. Real-world conditions may differ from theoretical values. Treat these data as a preliminary roadmap when designing systems.

Table 1: Static force (pull vs gap) - power drop
MW 8x5 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	4830 Gs 483.0 mT	2.17 kg / 4.78 pounds 2170.0 g / 21.3 N	strong
1 mm	3655 Gs 365.5 mT	1.24 kg / 2.74 pounds 1242.8 g / 12.2 N	safe
2 mm	2610 Gs 261.0 mT	0.63 kg / 1.40 pounds 633.9 g / 6.2 N	safe
3 mm	1825 Gs 182.5 mT	0.31 kg / 0.68 pounds 310.0 g / 3.0 N	safe
5 mm	915 Gs 91.5 mT	0.08 kg / 0.17 pounds 77.9 g / 0.8 N	safe
10 mm	234 Gs 23.4 mT	0.01 kg / 0.01 pounds 5.1 g / 0.1 N	safe
15 mm	89 Gs 8.9 mT	0.00 kg / 0.00 pounds 0.7 g / 0.0 N	safe
20 mm	43 Gs 4.3 mT	0.00 kg / 0.00 pounds 0.2 g / 0.0 N	safe
30 mm	14 Gs 1.4 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	safe
50 mm	3 Gs 0.3 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	safe

Grip strength drops sharply with every subsequent millimeter of gap. Keep in mind that every additional insulation layer (e.g., dirt, paint, veneer) significantly weakens the grip. Magnets operate most effectively during direct contact; distance drastically cuts the power. Notice how flashily the load capacity drop, when the magnet does not touch directly to the steel surface. When designing the mounting, avoid redundant distances.

Table 2: Slippage force (wall)
MW 8x5 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.43 kg / 0.96 pounds 434.0 g / 4.3 N
1 mm	Stal (~0.2)	0.25 kg / 0.55 pounds 248.0 g / 2.4 N
2 mm	Stal (~0.2)	0.13 kg / 0.28 pounds 126.0 g / 1.2 N
3 mm	Stal (~0.2)	0.06 kg / 0.14 pounds 62.0 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

The following data defines the estimated shear load required to start the sliding of the magnet down against a upright steel plate (assuming typical friction). This parameter depends on the distance between the magnet and the metal.

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 8x5 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.65 kg / 1.44 pounds 651.0 g / 6.4 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.43 kg / 0.96 pounds 434.0 g / 4.3 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.22 kg / 0.48 pounds 217.0 g / 2.1 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	1.09 kg / 2.39 pounds 1085.0 g / 10.6 N

When placing a magnet on a vertical plane (e.g., a car body), it will only hold just approx. 20%-30% of nominal attraction strength. Gravitational force and a low friction coefficient cause that products slip easier than they pop off the substrate. Planning a vertical fastening? Remember that the sliding force is noticeably lower than the maximum static pull force. On a painted metal, the magnet will slip down under a noticeably lighter load. Application of an anti-slip layer can effectively raise the stability.

Table 4: Steel thickness (saturation) - sheet metal selection
MW 8x5 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.22 kg / 0.48 pounds 217.0 g / 2.1 N
1 mm	25%	0.54 kg / 1.20 pounds 542.5 g / 5.3 N
2 mm	50%	1.09 kg / 2.39 pounds 1085.0 g / 10.6 N
3 mm	75%	1.63 kg / 3.59 pounds 1627.5 g / 16.0 N
5 mm	100%	2.17 kg / 4.78 pounds 2170.0 g / 21.3 N
10 mm	100%	2.17 kg / 4.78 pounds 2170.0 g / 21.3 N
11 mm	100%	2.17 kg / 4.78 pounds 2170.0 g / 21.3 N
12 mm	100%	2.17 kg / 4.78 pounds 2170.0 g / 21.3 N

A thin metal plate is not enough to absorb the full magnetic flux, which wastes potential of the magnet. If you attach a powerful product to a thin surface, the magnetism will penetrate right through and the pull force will drop sharply. To utilize full efficiency of this neodymium's potential, you need a suitably thick element of metal. The saturation phenomenon causes that on thin elements (e.g., thin profiles), the holder shows lower pull force. We recommend selecting the steel thickness according to the table below.

Table 5: Working in heat (material behavior) - thermal limit
MW 8x5 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	2.17 kg / 4.78 pounds 2170.0 g / 21.3 N	OK
40 °C	-2.2%	2.12 kg / 4.68 pounds 2122.3 g / 20.8 N	OK
60 °C	-4.4%	2.07 kg / 4.57 pounds 2074.5 g / 20.4 N	OK
80 °C	-6.6%	2.03 kg / 4.47 pounds 2026.8 g / 19.9 N
100 °C	-28.8%	1.55 kg / 3.41 pounds 1545.0 g / 15.2 N

Ordinary NdFeB products irreversibly lose strength past the thermal threshold. Avoid high temperatures – excessive heat can irreversibly destroy this magnet. With increasing heat, the magnet's power momentarily lowers. Do not use this magnet in hot environments higher than its safe range. Too high temperature will lead to irreversible degradation of magnetism.

*Engineering note: Heat tolerance is determined by both grade, and the Permeance Coefficient Pc. Flat magnets (pancake types) risk losing magnetic properties sooner than long magnets. Red status in the table signals permanent field degradation for this particular item.

Table 6: Magnet-Magnet interaction (repulsion) - forces in the system
MW 8x5 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	7.23 kg / 15.94 pounds 5 742 Gs	1.08 kg / 2.39 pounds 1084 g / 10.6 N	N/A
1 mm	5.58 kg / 12.31 pounds 8 490 Gs	0.84 kg / 1.85 pounds 838 g / 8.2 N	5.03 kg / 11.08 pounds ~0 Gs
2 mm	4.14 kg / 9.13 pounds 7 310 Gs	0.62 kg / 1.37 pounds 621 g / 6.1 N	3.73 kg / 8.21 pounds ~0 Gs
3 mm	2.98 kg / 6.58 pounds 6 207 Gs	0.45 kg / 0.99 pounds 448 g / 4.4 N	2.69 kg / 5.92 pounds ~0 Gs
5 mm	1.48 kg / 3.26 pounds 4 369 Gs	0.22 kg / 0.49 pounds 222 g / 2.2 N	1.33 kg / 2.93 pounds ~0 Gs
10 mm	0.26 kg / 0.57 pounds 1 830 Gs	0.04 kg / 0.09 pounds 39 g / 0.4 N	0.23 kg / 0.51 pounds ~0 Gs
20 mm	0.02 kg / 0.04 pounds 468 Gs	0.00 kg / 0.01 pounds 3 g / 0.0 N	0.02 kg / 0.03 pounds ~0 Gs
50 mm	0.00 kg / 0.00 pounds 47 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 29 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 19 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 13 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 9 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 7 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 steel setup. The connection of two magnets creates a more powerful interaction and a larger range of action. Planning to create a solid fastener? Apply two magnets instead of one magnet and a striker plate. Exercise caution that when connecting a pair of magnets, the pinch force is huge. The repulsion force is marginally weaker than the attraction, but still impressive.
*Field value for N-N configuration reaches ~0 Gs in the exact middle between the magnets (resulting from vector opposition).
* Figures demonstrate shear force of two same magnets (friction ~0.15 for Ni-Ni coating).

Table 7: Safety (HSE) (electronics) - precautionary measures
MW 8x5 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	4.5 cm
Hearing aid	10 Gs (1.0 mT)	3.5 cm
Mechanical watch	20 Gs (2.0 mT)	3.0 cm
Mobile device	40 Gs (4.0 mT)	2.5 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

A strong magnetic field poses a large risk to electronics as well as pacemakers. These neodymiums produce a flux that disrupts operation of digital equipment. Remember: the invisible magnetic field passes through tissues and plastic. Exceptional care must be taken by people with cochlear implants and insulin pumps. The risk also applies to: mechanical watches, remotes, membranes, and displays. Avoid contact with magnetic cards, hard drives, or sensitive navigation tools.

Table 8: Impact energy (kinetic energy) - collision effects
MW 8x5 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	34.31 km/h (9.53 m/s)	0.09 J
30 mm	59.35 km/h (16.49 m/s)	0.26 J
50 mm	76.62 km/h (21.28 m/s)	0.43 J
100 mm	108.35 km/h (30.10 m/s)	0.85 J

Neodymium magnets are delicate – a violent impact against metal risks their cracking. Pay attention to connection velocity – a neodymium left loose turns into a projectile. Impact energy can destroy the magnet or dangerous crushing to fingers. Be sure to control the product during bringing near metal so it doesn't hit violently against the steel surface. A contact at a velocity of dozens of km/h almost guarantees destruction of the magnet. Wear safety glasses when handling with powerful specimens.

Table 9: Coating parameters (durability)
MW 8x5 / 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 following table defines the conditions under which this product can be safely used. Note the thickness of the protective layer.

Table 10: Construction data (P_c)
MW 8x5 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	2 450 Mx	24.5 µWb
P_c Coefficient	0.68	High (Stable)

Total magnetic flux passing through the magnet pole. Essential parameter when building generators and motors. P_c value determines the working geometry.

Table 11: Hydrostatics and buoyancy
MW 8x5 / N38

Environment	Effective steel pull	Effect
Air (land)	2.17 kg	Standard
Water (riverbed)	2.48 kg (+0.31 kg buoyancy gain)	+14.5%

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

Water displaces steel, making heavy objects slightly lighter. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Shear force

*Note: On a vertical surface, the magnet holds just ~20% of its nominal pull.

2. Plate thickness effect

*Thin steel (e.g. 0.5mm PC case) drastically reduces the holding force.

3. Power loss vs temp

*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) = 0.68

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

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%

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: 010105-2025

Magnet Unit Converter

Force (pull)

Force in kg

Newtons (N)

lbs

Magnetic Induction

Tesla (T)

Input your value in just one field to see the conversion in the other units right away.

View also products

Product available Ships tomorrow

MPL 20x5x3 / N38 - lamellar magnet

1.058 ZŁ brutto / pcs

Product available Ships tomorrow

SMZR 32x250 / N52 - magnetic separator with handle

738.00 ZŁ brutto / pcs

Product available Ships tomorrow

MW 8x5 / N38 - cylindrical magnet

0.836 ZŁ brutto / pcs

Product available Ships tomorrow

SM 32x125 [2xM8] / N52 - magnetic separator

455.10 ZŁ brutto / pcs

The presented product is an exceptionally strong cylindrical magnet, produced from durable NdFeB material, which, at dimensions of Ø8x5 mm, guarantees the highest energy density. This specific item is characterized by high dimensional repeatability and industrial build quality, making it an ideal solution for professional engineers and designers. As a magnetic rod with impressive force (approx. 2.17 kg), this product is available off-the-shelf from our warehouse in Poland, ensuring rapid order fulfillment. Moreover, its triple-layer Ni-Cu-Ni coating shields it against corrosion in typical operating conditions, ensuring an aesthetic appearance and durability for years.

It successfully proves itself in DIY projects, advanced automation, and broadly understood industry, serving as a fastening or actuating element. Thanks to the high power of 21.31 N with a weight of only 1.88 g, this cylindrical magnet is indispensable in electronics and wherever low weight is crucial.

Due to the brittleness of the NdFeB material, you must not use 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.

Magnets N38 are strong enough for the majority of applications in modeling and machine building, where excessive miniaturization with maximum force is not required. If you need even stronger magnets in the same volume (Ø8x5), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our store.

The presented product is a neodymium magnet with precisely defined parameters: diameter 8 mm and height 5 mm. The value of 21.31 N means that the magnet is capable of holding a weight many times exceeding its own mass of 1.88 g. The product has a [NiCuNi] coating, which protects the surface against oxidation, giving it an aesthetic, silvery shine.

This cylinder is magnetized axially (along the height of 5 mm), which means that the N and S poles are located on the flat, circular surfaces. 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.

Pros and cons of rare earth magnets.

Pros

Apart from their consistent magnetic energy, neodymium magnets have these key benefits:

Their power remains stable, and after around ten years it drops only by ~1% (according to research),
They are extremely resistant to demagnetization induced by presence of other magnetic fields,
By using a reflective coating of silver, the element presents an proper look,
Neodymium magnets achieve maximum magnetic induction on a contact point, which ensures high operational effectiveness,
Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can function (depending on the shape) even at a temperature of 230°C or more...
Thanks to modularity in designing and the ability to modify to client solutions,
Huge importance in electronics industry – they are used in computer drives, brushless drives, medical devices, and modern systems.
Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in tiny dimensions, which makes them useful in compact constructions

Cons

Disadvantages of NdFeB magnets:

Susceptibility to cracking is one of their disadvantages. Upon intense impact they can fracture. We advise keeping them in a special holder, which not only secures them against impacts but also increases their durability
Neodymium magnets lose force when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop 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 rust. Therefore during using outdoors, we suggest using water-impermeable magnets made of rubber, plastic or other material resistant to moisture
Due to limitations in creating threads and complex shapes in magnets, we propose using cover - magnetic mount.
Potential hazard resulting from small fragments of magnets can be dangerous, if swallowed, which becomes key in the context of child health protection. Additionally, tiny parts of these products can disrupt the diagnostic process medical when they are in the body.
With budget limitations the cost of neodymium magnets is economically unviable,

Pull force analysis

Maximum lifting capacity of the magnet – what it depends on?

Breakaway force was determined for optimal configuration, taking into account:

with the use of a yoke made of special test steel, guaranteeing full magnetic saturation
possessing a thickness of min. 10 mm to avoid saturation
with an polished contact surface
with zero gap (no coatings)
for force acting at a right angle (pull-off, not shear)
at conditions approx. 20°C

Determinants of lifting force in real conditions

Real force impacted by specific conditions, such as (from most important):

Space between surfaces – every millimeter of distance (caused e.g. by veneer or unevenness) significantly weakens the pulling force, often by half at just 0.5 mm.
Loading method – declared lifting capacity refers to detachment vertically. When slipping, the magnet holds significantly lower power (often approx. 20-30% of maximum force).
Substrate thickness – to utilize 100% power, the steel must be sufficiently thick. Thin sheet restricts the attraction force (the magnet "punches through" it).
Chemical composition of the base – mild steel gives the best results. Alloy admixtures reduce magnetic permeability and holding force.
Surface structure – the smoother and more polished the plate, the larger the contact zone and higher the lifting capacity. Roughness acts like micro-gaps.
Temperature influence – hot environment reduces pulling force. Too high temperature can permanently damage the magnet.

Holding force was tested on the plate surface of 20 mm thickness, when the force acted perpendicularly, however under parallel forces the holding force is lower. In addition, even a minimal clearance between the magnet and the plate reduces the load capacity.

Warnings

Safe distance

Equipment safety: Strong magnets can damage data carriers and delicate electronics (pacemakers, hearing aids, timepieces).

Medical implants

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

Eye protection

Despite metallic appearance, the material is brittle and cannot withstand shocks. Avoid impacts, as the magnet may crumble into sharp, dangerous pieces.

No play value

Always store magnets out of reach of children. Choking hazard is significant, and the consequences of magnets connecting inside the body are tragic.

Thermal limits

Do not overheat. Neodymium magnets are sensitive to heat. If you need resistance above 80°C, look for special high-temperature series (H, SH, UH).

Machining danger

Combustion risk: Rare earth powder is explosive. Do not process magnets without safety gear as this risks ignition.

Allergy Warning

It is widely known that the nickel plating (the usual finish) is a potent allergen. If your skin reacts to metals, refrain from touching magnets with bare hands and select encased magnets.

Do not underestimate power

Handle with care. Rare earth magnets attract from a distance and snap with massive power, often quicker than you can move away.

Hand protection

Pinching hazard: The pulling power is so immense that it can result in hematomas, pinching, and even bone fractures. Protective gloves are recommended.

Threat to navigation

Note: rare earth magnets generate a field that disrupts sensitive sensors. Maintain a separation from your phone, tablet, and GPS.

Attention! Looking for details? Read our article: Are neodymium magnets dangerous?

MW 8x5 / N38 - cylindrical magnet

Technical - MW 8x5 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical analysis of the magnet - technical parameters

Table 1: Static force (pull vs gap) - power drop MW 8x5 / N38

Table 2: Slippage force (wall) MW 8x5 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces MW 8x5 / N38

Table 4: Steel thickness (saturation) - sheet metal selection MW 8x5 / N38

Table 5: Working in heat (material behavior) - thermal limit MW 8x5 / N38

Table 6: Magnet-Magnet interaction (repulsion) - forces in the system MW 8x5 / N38

Table 7: Safety (HSE) (electronics) - precautionary measures MW 8x5 / N38

Table 8: Impact energy (kinetic energy) - collision effects MW 8x5 / N38

Table 9: Coating parameters (durability) MW 8x5 / N38

Table 10: Construction data (Pc) MW 8x5 / N38

Table 11: Hydrostatics and buoyancy MW 8x5 / N38

1. Shear force

2. Plate thickness effect

3. Power loss vs temp

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

Chemical composition

Sustainability

Force (pull)

Magnetic Induction

View also products

MPL 20x5x3 / N38 - lamellar magnet

SMZR 32x250 / N52 - magnetic separator with handle

MW 8x5 / N38 - cylindrical magnet

SM 32x125 [2xM8] / N52 - magnetic separator

Pros and cons of rare earth magnets.

Pros

Cons

Pull force analysis

Maximum lifting capacity of the magnet – what it depends on?

Determinants of lifting force in real conditions

Warnings

Safe distance

Medical implants

Eye protection

No play value

Thermal limits

Machining danger

Allergy Warning

Do not underestimate power

Hand protection

Threat to navigation

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (pull vs gap) - power drop
MW 8x5 / N38

Table 2: Slippage force (wall)
MW 8x5 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 8x5 / N38

Table 4: Steel thickness (saturation) - sheet metal selection
MW 8x5 / N38

Table 5: Working in heat (material behavior) - thermal limit
MW 8x5 / N38

Table 6: Magnet-Magnet interaction (repulsion) - forces in the system
MW 8x5 / N38

Table 7: Safety (HSE) (electronics) - precautionary measures
MW 8x5 / N38

Table 8: Impact energy (kinetic energy) - collision effects
MW 8x5 / N38

Table 9: Coating parameters (durability)
MW 8x5 / N38

Table 10: Construction data (P_c)
MW 8x5 / N38

Table 11: Hydrostatics and buoyancy
MW 8x5 / N38