Product available Ships tomorrow

MW 8x15 / 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 010102

GTIN/EAN: 5906301811015

5.00

Diameter Ø

8 mm [±0,1 mm]

Height

15 mm [±0,1 mm]

Weight

5.65 g

Magnetization Direction

↑ axial

Load capacity

1.47 kg / 14.45 N

Magnetic Induction

598.12 mT / 5981 Gs

Coating

[NiCuNi] Nickel

view technical data »

3.44 ZŁ with VAT / pcs + price for transport

2.80 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs

2.80 ZŁ

3.44 ZŁ

price from 250 pcs

2.63 ZŁ

3.24 ZŁ

price from 900 pcs

2.46 ZŁ

3.03 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Can't decide what to choose?

Pick up the phone and ask +48 888 99 98 98 alternatively contact us by means of inquiry form the contact page.
Strength as well as form of a magnet can be tested using our our magnetic calculator.

Orders submitted before 14:00 will be dispatched today!

Technical data - MW 8x15 / N38 - cylindrical magnet

Specification / characteristics - MW 8x15 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010102
GTIN/EAN	5906301811015
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	15 mm [±0,1 mm]
Weight	5.65 g
Magnetization Direction	↑ axial
Load capacity ~ ?	1.47 kg / 14.45 N
Magnetic Induction ~ ?	598.12 mT / 5981 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 8x15 / 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 product - report

The following information represent the result of a mathematical calculation. Values rely on algorithms for the class Nd₂Fe₁₄B. Operational parameters may differ. Use these calculations as a reference point for designers.

Table 1: Static pull force (pull vs distance) - power drop
MW 8x15 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	5975 Gs 597.5 mT	1.47 kg / 3.24 lbs 1470.0 g / 14.4 N	weak grip
1 mm	4511 Gs 451.1 mT	0.84 kg / 1.85 lbs 837.8 g / 8.2 N	weak grip
2 mm	3262 Gs 326.2 mT	0.44 kg / 0.97 lbs 438.2 g / 4.3 N	weak grip
3 mm	2332 Gs 233.2 mT	0.22 kg / 0.49 lbs 224.0 g / 2.2 N	weak grip
5 mm	1238 Gs 123.8 mT	0.06 kg / 0.14 lbs 63.1 g / 0.6 N	weak grip
10 mm	366 Gs 36.6 mT	0.01 kg / 0.01 lbs 5.5 g / 0.1 N	weak grip
15 mm	155 Gs 15.5 mT	0.00 kg / 0.00 lbs 1.0 g / 0.0 N	weak grip
20 mm	80 Gs 8.0 mT	0.00 kg / 0.00 lbs 0.3 g / 0.0 N	weak grip
30 mm	30 Gs 3.0 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	weak grip
50 mm	8 Gs 0.8 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	weak grip

Magnetic force drops significantly with every mm of gap. Remember that even a very thin break (e.g., dirt, paint, dust) significantly reduces the pull force. Neodymiums hold optimally in perfect adhesion; distance drastically cuts the force. Notice how rapidly the load capacity fall, when the magnet does not touch tightly to the metal substrate. When calculating the arrangement, eliminate unnecessary gaps.

Table 2: Vertical hold (vertical surface)
MW 8x15 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.29 kg / 0.65 lbs 294.0 g / 2.9 N
1 mm	Stal (~0.2)	0.17 kg / 0.37 lbs 168.0 g / 1.6 N
2 mm	Stal (~0.2)	0.09 kg / 0.19 lbs 88.0 g / 0.9 N
3 mm	Stal (~0.2)	0.04 kg / 0.10 lbs 44.0 g / 0.4 N
5 mm	Stal (~0.2)	0.01 kg / 0.03 lbs 12.0 g / 0.1 N
10 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 2.0 g / 0.0 N
15 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N
20 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N
30 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N

The following data presents the approximate weight limit needed to initiate the sliding of the magnet downwards along a vertical steel wall (assuming typical friction coefficient). This parameter is relative to the gap size between the magnet and the metal.

Table 3: Wall mounting (shearing) - vertical pull
MW 8x15 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.44 kg / 0.97 lbs 441.0 g / 4.3 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.29 kg / 0.65 lbs 294.0 g / 2.9 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.15 kg / 0.32 lbs 147.0 g / 1.4 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.74 kg / 1.62 lbs 735.0 g / 7.2 N

When hanging a element on a vertical surface (e.g., a fridge), it will maintain just about 20%-30% of its maximum pull force. Gravity and a weak degree of grip mean that products move down easier than they pull off. Designing a vertical fastening? Remember that the shear force is significantly lower than the perpendicular breakaway force. On a painted metal, the holder will slip down under a noticeably lighter weight. Application of an anti-slip layer can significantly raise the stability.

Table 4: Material efficiency (substrate influence) - power losses
MW 8x15 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.15 kg / 0.32 lbs 147.0 g / 1.4 N
1 mm	25%	0.37 kg / 0.81 lbs 367.5 g / 3.6 N
2 mm	50%	0.74 kg / 1.62 lbs 735.0 g / 7.2 N
3 mm	75%	1.10 kg / 2.43 lbs 1102.5 g / 10.8 N
5 mm	100%	1.47 kg / 3.24 lbs 1470.0 g / 14.4 N
10 mm	100%	1.47 kg / 3.24 lbs 1470.0 g / 14.4 N
11 mm	100%	1.47 kg / 3.24 lbs 1470.0 g / 14.4 N
12 mm	100%	1.47 kg / 3.24 lbs 1470.0 g / 14.4 N

A thin metal plate is incapable of focus the full magnetic flux, which wastes potential of the magnet. Should you mount a strong magnet to a too thin substrate, the field will penetrate right through and the pull force will drop sharply. To utilize 100% of this neodymium's potential, you need a suitably thick piece of metal. The saturation effect means that on thin elements (e.g., car bodies), the product shows lower pull force. We suggest choosing the steel dimension from these parameters.

Table 5: Thermal stability (material behavior) - thermal limit
MW 8x15 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	1.47 kg / 3.24 lbs 1470.0 g / 14.4 N	OK
40 °C	-2.2%	1.44 kg / 3.17 lbs 1437.7 g / 14.1 N	OK
60 °C	-4.4%	1.41 kg / 3.10 lbs 1405.3 g / 13.8 N	OK
80 °C	-6.6%	1.37 kg / 3.03 lbs 1373.0 g / 13.5 N
100 °C	-28.8%	1.05 kg / 2.31 lbs 1046.6 g / 10.3 N

Ordinary NdFeB products irreversibly lose parameters past the thermal threshold. Watch out for overheating – high temperature can permanently damage this magnet. As the temperature rises, the magnet's force temporarily lowers. Refrain from using this product near heat sources exceeding its working range. Too high temperature will lead to destruction of magnetic properties.

*Engineering note: Temperature resistance depends not only on the material grade, and the Permeance Coefficient Pc. Thin magnets (low permeance coefficient) risk losing magnetic properties under lower heat stress compared to rod magnets. The danger warning in the table signals a risk of irreversible loss for this specific geometry.

Table 6: Magnet-Magnet interaction (attraction) - field collision
MW 8x15 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	11.06 kg / 24.39 lbs 6 130 Gs	1.66 kg / 3.66 lbs 1660 g / 16.3 N	N/A
1 mm	8.49 kg / 18.72 lbs 10 469 Gs	1.27 kg / 2.81 lbs 1274 g / 12.5 N	7.64 kg / 16.85 lbs ~0 Gs
2 mm	6.31 kg / 13.90 lbs 9 022 Gs	0.95 kg / 2.09 lbs 946 g / 9.3 N	5.68 kg / 12.51 lbs ~0 Gs
3 mm	4.59 kg / 10.12 lbs 7 697 Gs	0.69 kg / 1.52 lbs 688 g / 6.8 N	4.13 kg / 9.11 lbs ~0 Gs
5 mm	2.36 kg / 5.20 lbs 5 516 Gs	0.35 kg / 0.78 lbs 354 g / 3.5 N	2.12 kg / 4.68 lbs ~0 Gs
10 mm	0.48 kg / 1.05 lbs 2 476 Gs	0.07 kg / 0.16 lbs 71 g / 0.7 N	0.43 kg / 0.94 lbs ~0 Gs
20 mm	0.04 kg / 0.09 lbs 731 Gs	0.01 kg / 0.01 lbs 6 g / 0.1 N	0.04 kg / 0.08 lbs ~0 Gs
50 mm	0.00 kg / 0.00 lbs 94 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
60 mm	0.00 kg / 0.00 lbs 60 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
70 mm	0.00 kg / 0.00 lbs 41 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
80 mm	0.00 kg / 0.00 lbs 29 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
90 mm	0.00 kg / 0.00 lbs 21 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
100 mm	0.00 kg / 0.00 lbs 16 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs

Two magnetic products attract each other from a wider radius than a magnet and sheet setup. The connection of magnet-to-magnet produces a massive flux and a larger range of operation. Planning to create a solid fastener? Apply two magnets instead of one magnet and a striker plate. Be careful that when attracting two neodymiums, the impact force is extreme. The repulsion force is a bit weaker than the connection force, but still impressive.
*Flux density for N-N configuration reaches ~0 Gs at the geometric center of the gap (caused by magnetic field nullification).
* Estimates show sliding force of dual matching neodymium magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Safety (HSE) (electronics) - precautionary measures
MW 8x15 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	6.0 cm
Hearing aid	10 Gs (1.0 mT)	5.0 cm
Mechanical watch	20 Gs (2.0 mT)	4.0 cm
Mobile device	40 Gs (4.0 mT)	3.0 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

Powerful magnet radiation poses a serious hazard to IT equipment as well as pacemakers. These NdFeB products produce a flux that disrupts operation of digital equipment. Be aware: the invisible magnetic field passes through tissues and housings. Exceptional care must be taken by people with hearing aids and insulin pumps. Also at risk are: mechanical watches, car keys, speakers, and screens. Do not bring the product near payment cards, HDD media, or sensitive navigation tools.

Table 8: Impact energy (kinetic energy) - collision effects
MW 8x15 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	16.31 km/h (4.53 m/s)	0.06 J
30 mm	28.18 km/h (7.83 m/s)	0.17 J
50 mm	36.37 km/h (10.10 m/s)	0.29 J
100 mm	51.44 km/h (14.29 m/s)	0.58 J

NdFeB products are very brittle – a collision with steel causes immediate chipping. Control the attraction moment – a magnet released freely turns into a projectile. Kinetic force can destroy the magnet or injury to skin. Hold the magnet firmly during mounting so it doesn't hit violently against the metal. A contact at a velocity of dozens of km/h almost guarantees destruction of the neodymium. Wear eye protection when handling with large magnets.

Table 9: Coating parameters (durability)
MW 8x15 / 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 (P_c)
MW 8x15 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	3 306 Mx	33.1 µWb
P_c Coefficient	1.19	High (Stable)

Flux value passing through the pole surface. Essential parameter when building generators as well as sensors. The P_c coefficient determines the working geometry.

Table 11: Physics of underwater searching
MW 8x15 / N38

Environment	Effective steel pull	Effect
Air (land)	1.47 kg	Standard
Water (riverbed)	1.68 kg (+0.21 kg buoyancy gain)	+14.5%

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

The magnetic field penetrates through water without any losses. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Shear force

*Caution: On a vertical surface, the magnet retains only approx. 20-30% of its perpendicular strength.

2. Plate thickness effect

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

3. Power loss vs temp

*For N38 grade, the max working temp is 80°C.

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 1.19

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 specification and ecology

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: 010102-2026

Magnet Unit Converter

Pulling force

Force in kg

Pounds (lbs)

Field Strength

Input a figure in a single field to receive results for all other fields right away.

View more proposals

Product available Ships tomorrow

UMGW 42x20x9 [M6] GW / N38 - magnetic holder internal thread

33.95 ZŁ brutto / pcs

Product available Ships tomorrow

MPL 60x10x5 / N38 - lamellar magnet

19.00 ZŁ brutto / pcs

Product available Ships tomorrow

MW 20x2.5 / N38 - cylindrical magnet

3.01 ZŁ brutto / pcs

Product available Ships tomorrow

MPL 50x25x12 / N38 - lamellar magnet

45.51 ZŁ brutto / pcs

The offered product is an extremely powerful cylindrical magnet, made from modern NdFeB material, which, at dimensions of Ø8x15 mm, guarantees maximum efficiency. This specific item is characterized by a tolerance of ±0.1mm and industrial build quality, making it a perfect solution for the most demanding engineers and designers. As a magnetic rod with impressive force (approx. 1.47 kg), this product is in stock from our warehouse in Poland, ensuring rapid order fulfillment. Furthermore, its triple-layer Ni-Cu-Ni coating effectively protects it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.

This model is ideal for building generators, advanced Hall effect sensors, and efficient magnetic separators, where field concentration on a small surface counts. Thanks to the pull force of 14.45 N with a weight of only 5.65 g, this cylindrical magnet 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, specialized industrial adhesives are used, which do not react with the nickel coating and fill the gap, guaranteeing durability of the connection.

Magnets NdFeB grade N38 are strong enough for 90% of applications in automation and machine building, where excessive miniaturization with maximum force is not required. If you need the strongest magnets in the same volume (Ø8x15), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our warehouse.

This model is characterized by dimensions Ø8x15 mm, which, at a weight of 5.65 g, makes it an element with high magnetic energy density. The value of 14.45 N means that the magnet is capable of holding a weight many times exceeding its own mass of 5.65 g. The product has a [NiCuNi] coating, which protects the surface against external factors, 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 8 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 diametrically if your project requires it.

Strengths and weaknesses of neodymium magnets.

Benefits

Besides their remarkable pulling force, neodymium magnets offer the following advantages:

Their strength is maintained, and after approximately ten years it drops only by ~1% (according to research),
They do not lose their magnetic properties even under close interference source,
The use of an metallic coating of noble metals (nickel, gold, silver) causes the element to be more visually attractive,
Neodymium magnets generate maximum magnetic induction on a contact point, which allows for strong attraction,
Due to their durability and thermal resistance, neodymium magnets can operate (depending on the form) even at high temperatures reaching 230°C or more...
Possibility of detailed forming and adjusting to precise requirements,
Key role in future technologies – they are utilized in magnetic memories, motor assemblies, medical devices, as well as technologically advanced constructions.
Thanks to concentrated force, small magnets offer high operating force, occupying minimum space,

Limitations

Disadvantages of neodymium magnets:

Brittleness is one of their disadvantages. Upon intense impact they can break. We advise keeping them in a special holder, which not only protects 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 drop of power (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
When exposed to humidity, magnets usually rust. For applications outside, it is recommended to use protective magnets, such as those in rubber or plastics, which prevent oxidation as well as corrosion.
Due to limitations in producing threads and complicated forms in magnets, we recommend using a housing - magnetic mechanism.
Health risk to health – tiny shards of magnets pose a threat, if swallowed, which becomes key in the context of child safety. Furthermore, small elements of these devices can complicate diagnosis medical when they are in the body.
With mass production the cost of neodymium magnets is a challenge,

Holding force characteristics

Magnetic strength at its maximum – what affects it?

The declared magnet strength represents the peak performance, recorded under optimal environment, specifically:

with the application of a yoke made of special test steel, ensuring maximum field concentration
whose thickness reaches at least 10 mm
with an ground contact surface
under conditions of no distance (surface-to-surface)
for force applied at a right angle (pull-off, not shear)
at conditions approx. 20°C

Magnet lifting force in use – key factors

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

Clearance – the presence of any layer (paint, tape, air) acts as an insulator, which reduces power rapidly (even by 50% at 0.5 mm).
Force direction – note that the magnet holds strongest perpendicularly. Under shear forces, the holding force drops significantly, often to levels of 20-30% of the nominal value.
Wall thickness – thin material does not allow full use of the magnet. Magnetic flux passes through the material instead of converting into lifting capacity.
Steel grade – ideal substrate is pure iron steel. Hardened steels may attract less.
Surface finish – full contact is possible only on polished steel. Any scratches and bumps create air cushions, weakening the magnet.
Heat – NdFeB sinters have a sensitivity to temperature. At higher temperatures they lose power, and in frost they can be stronger (up to a certain limit).

Lifting capacity was measured by applying a polished steel plate of suitable thickness (min. 20 mm), under perpendicular pulling force, however under attempts to slide the magnet the holding force is lower. Additionally, even a minimal clearance between the magnet’s surface and the plate lowers the holding force.

Safe handling of neodymium magnets

Sensitization to coating

Medical facts indicate that the nickel plating (the usual finish) is a strong allergen. If your skin reacts to metals, refrain from touching magnets with bare hands or select encased magnets.

Dust explosion hazard

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

Heat sensitivity

Avoid heat. NdFeB magnets are sensitive to temperature. If you require operation above 80°C, ask us about special high-temperature series (H, SH, UH).

Risk of cracking

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

ICD Warning

Warning for patients: Strong magnetic fields disrupt electronics. Keep minimum 30 cm distance or request help to work with the magnets.

Electronic hazard

Powerful magnetic fields can corrupt files on payment cards, hard drives, and storage devices. Keep a distance of min. 10 cm.

Precision electronics

An intense magnetic field disrupts the functioning of magnetometers in smartphones and navigation systems. Maintain magnets close to a smartphone to avoid damaging the sensors.

Keep away from children

These products are not suitable for play. Accidental ingestion of several magnets can lead to them attracting across intestines, which constitutes a severe health hazard and necessitates urgent medical intervention.

Hand protection

Big blocks can break fingers instantly. Under no circumstances put your hand between two strong magnets.

Respect the power

Before starting, read the rules. Sudden snapping can break the magnet or hurt your hand. Be predictive.

Caution! Need more info? Check our post: Are neodymium magnets dangerous?

MW 8x15 / N38 - cylindrical magnet

Technical data - MW 8x15 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering analysis of the product - report

Table 1: Static pull force (pull vs distance) - power drop MW 8x15 / N38

Table 2: Vertical hold (vertical surface) MW 8x15 / N38

Table 3: Wall mounting (shearing) - vertical pull MW 8x15 / N38

Table 4: Material efficiency (substrate influence) - power losses MW 8x15 / N38

Table 5: Thermal stability (material behavior) - thermal limit MW 8x15 / N38

Table 6: Magnet-Magnet interaction (attraction) - field collision MW 8x15 / N38

Table 7: Safety (HSE) (electronics) - precautionary measures MW 8x15 / N38

Table 8: Impact energy (kinetic energy) - collision effects MW 8x15 / N38

Table 9: Coating parameters (durability) MW 8x15 / N38

Table 10: Construction data (Pc) MW 8x15 / N38

Table 11: Physics of underwater searching MW 8x15 / N38

1. Shear force

2. Plate thickness effect

3. Power loss vs temp

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

Material specification

Sustainability

Pulling force

Field Strength

View more proposals

UMGW 42x20x9 [M6] GW / N38 - magnetic holder internal thread

MPL 60x10x5 / N38 - lamellar magnet

MW 20x2.5 / N38 - cylindrical magnet

MPL 50x25x12 / N38 - lamellar magnet

Strengths and weaknesses of neodymium magnets.

Benefits

Limitations

Holding force characteristics

Magnetic strength at its maximum – what affects it?

Magnet lifting force in use – key factors

Safe handling of neodymium magnets

Sensitization to coating

Dust explosion hazard

Heat sensitivity

Risk of cracking

ICD Warning

Electronic hazard

Precision electronics

Keep away from children

Hand protection

Respect the power

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (pull vs distance) - power drop
MW 8x15 / N38

Table 2: Vertical hold (vertical surface)
MW 8x15 / N38

Table 3: Wall mounting (shearing) - vertical pull
MW 8x15 / N38

Table 4: Material efficiency (substrate influence) - power losses
MW 8x15 / N38

Table 5: Thermal stability (material behavior) - thermal limit
MW 8x15 / N38

Table 6: Magnet-Magnet interaction (attraction) - field collision
MW 8x15 / N38

Table 7: Safety (HSE) (electronics) - precautionary measures
MW 8x15 / N38

Table 8: Impact energy (kinetic energy) - collision effects
MW 8x15 / N38

Table 9: Coating parameters (durability)
MW 8x15 / N38

Table 10: Construction data (P_c)
MW 8x15 / N38

Table 11: Physics of underwater searching
MW 8x15 / N38