Product available Ships tomorrow

MW 15x8 / 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 010032

GTIN/EAN: 5906301810315

5.00

Diameter Ø

15 mm [±0,1 mm]

Height

8 mm [±0,1 mm]

Weight

10.6 g

Magnetization Direction

↑ axial

Load capacity

7.37 kg / 72.28 N

Magnetic Induction

451.96 mT / 4520 Gs

Coating

[NiCuNi] Nickel

view technical data »

4.92 ZŁ with VAT / pcs + price for transport

4.00 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs

4.00 ZŁ

4.92 ZŁ

price from 150 pcs

3.76 ZŁ

4.62 ZŁ

price from 650 pcs

3.52 ZŁ

4.33 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Do you have purchase concerns?

Give us a call +48 22 499 98 98 otherwise get in touch using form through our site.
Lifting power along with form of magnetic components can be tested using our online calculation tool.

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

Technical details - MW 15x8 / N38 - cylindrical magnet

Specification / characteristics - MW 15x8 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010032
GTIN/EAN	5906301810315
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	15 mm [±0,1 mm]
Height	8 mm [±0,1 mm]
Weight	10.6 g
Magnetization Direction	↑ axial
Load capacity ~ ?	7.37 kg / 72.28 N
Magnetic Induction ~ ?	451.96 mT / 4520 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 15x8 / 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 - data

The following information represent the result of a mathematical analysis. Results rely on models for the material Nd₂Fe₁₄B. Actual conditions may differ from theoretical values. Treat these data as a preliminary roadmap for designers.

Table 1: Static pull force (pull vs distance) - characteristics
MW 15x8 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	4518 Gs 451.8 mT	7.37 kg / 16.25 LBS 7370.0 g / 72.3 N	strong
1 mm	3944 Gs 394.4 mT	5.62 kg / 12.38 LBS 5616.2 g / 55.1 N	strong
2 mm	3362 Gs 336.2 mT	4.08 kg / 9.00 LBS 4083.1 g / 40.1 N	strong
3 mm	2820 Gs 282.0 mT	2.87 kg / 6.33 LBS 2871.9 g / 28.2 N	strong
5 mm	1931 Gs 193.1 mT	1.35 kg / 2.97 LBS 1346.9 g / 13.2 N	low risk
10 mm	763 Gs 76.3 mT	0.21 kg / 0.46 LBS 210.3 g / 2.1 N	low risk
15 mm	349 Gs 34.9 mT	0.04 kg / 0.10 LBS 44.0 g / 0.4 N	low risk
20 mm	184 Gs 18.4 mT	0.01 kg / 0.03 LBS 12.2 g / 0.1 N	low risk
30 mm	68 Gs 6.8 mT	0.00 kg / 0.00 LBS 1.7 g / 0.0 N	low risk
50 mm	17 Gs 1.7 mT	0.00 kg / 0.00 LBS 0.1 g / 0.0 N	low risk

Grip strength decreases drastically per each millimeter of distance. Keep in mind that every additional insulation layer (e.g., dirt, varnish, veneer) strongly reduces the pull force. Magnets operate strongest in perfect adhesion; distance weakens the power. Notice how flashily the parameters plummet, when the product does not adhere flatly to the metal substrate. When planning the assembly, eliminate unnecessary gaps.

Table 2: Vertical capacity (vertical surface)
MW 15x8 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	1.47 kg / 3.25 LBS 1474.0 g / 14.5 N
1 mm	Stal (~0.2)	1.12 kg / 2.48 LBS 1124.0 g / 11.0 N
2 mm	Stal (~0.2)	0.82 kg / 1.80 LBS 816.0 g / 8.0 N
3 mm	Stal (~0.2)	0.57 kg / 1.27 LBS 574.0 g / 5.6 N
5 mm	Stal (~0.2)	0.27 kg / 0.60 LBS 270.0 g / 2.6 N
10 mm	Stal (~0.2)	0.04 kg / 0.09 LBS 42.0 g / 0.4 N
15 mm	Stal (~0.2)	0.01 kg / 0.02 LBS 8.0 g / 0.1 N
20 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 2.0 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

This section calculates the estimated weight limit needed to start the shifting of the magnet downwards against a vertical metal surface (considering typical friction coefficient). This parameter varies with the separation distance between the magnet and the metal.

Table 3: Vertical assembly (sliding) - vertical pull
MW 15x8 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	2.21 kg / 4.87 LBS 2211.0 g / 21.7 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	1.47 kg / 3.25 LBS 1474.0 g / 14.5 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.74 kg / 1.62 LBS 737.0 g / 7.2 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	3.69 kg / 8.12 LBS 3685.0 g / 36.1 N

When hanging a element on a vertical surface (e.g., a fridge), it will only hold barely approx. 20%-30% of its nominal power. Gravity and a low friction coefficient influence the fact that holders slip easier than they detach. Planning a vertical fastening? Note that the sliding force is much weaker than the maximum static pull force. On a slippery surface, the element will give way down under a much lighter weight. Utilizing a rubberized pad can significantly raise the stability.

Table 4: Material efficiency (saturation) - power losses
MW 15x8 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.74 kg / 1.62 LBS 737.0 g / 7.2 N
1 mm	25%	1.84 kg / 4.06 LBS 1842.5 g / 18.1 N
2 mm	50%	3.69 kg / 8.12 LBS 3685.0 g / 36.1 N
3 mm	75%	5.53 kg / 12.19 LBS 5527.5 g / 54.2 N
5 mm	100%	7.37 kg / 16.25 LBS 7370.0 g / 72.3 N
10 mm	100%	7.37 kg / 16.25 LBS 7370.0 g / 72.3 N
11 mm	100%	7.37 kg / 16.25 LBS 7370.0 g / 72.3 N
12 mm	100%	7.37 kg / 16.25 LBS 7370.0 g / 72.3 N

A thin sheet cannot take in the full magnetic flux, which wastes potential of the holder. If you attach a powerful product to a too thin substrate, the flux will pass right through and the pull force will drop sharply. To achieve full efficiency of this neodymium's potential, you require a sufficiently solid element of metal. The saturation phenomenon causes that on sheet metal structures (e.g., car bodies), the magnet works worse. We recommend selecting the steel thickness based on the following data.

Table 5: Thermal resistance (stability) - thermal limit
MW 15x8 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	7.37 kg / 16.25 LBS 7370.0 g / 72.3 N	OK
40 °C	-2.2%	7.21 kg / 15.89 LBS 7207.9 g / 70.7 N	OK
60 °C	-4.4%	7.05 kg / 15.53 LBS 7045.7 g / 69.1 N	OK
80 °C	-6.6%	6.88 kg / 15.18 LBS 6883.6 g / 67.5 N
100 °C	-28.8%	5.25 kg / 11.57 LBS 5247.4 g / 51.5 N

Standard neodymium magnets lose parameters after exceeding the maximum temperature. Watch out for overheating – excessive heat can irreversibly destroy this product. With every degree above norm, the magnet's power momentarily lowers. Do not use this magnet near heat sources higher than its operating temperature limit. Ignoring the limit will cause permanent loss of magnetic properties.

*Technical advisory: Heat tolerance depends not only on the material grade, but also on the magnet's shape. Thin magnets (low Pc) 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 (attraction) - field range
MW 15x8 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	22.23 kg / 49.02 LBS 5 606 Gs	3.34 kg / 7.35 LBS 3335 g / 32.7 N	N/A
1 mm	19.55 kg / 43.11 LBS 8 473 Gs	2.93 kg / 6.47 LBS 2933 g / 28.8 N	17.60 kg / 38.80 LBS ~0 Gs
2 mm	16.94 kg / 37.35 LBS 7 887 Gs	2.54 kg / 5.60 LBS 2541 g / 24.9 N	15.25 kg / 33.62 LBS ~0 Gs
3 mm	14.52 kg / 32.00 LBS 7 301 Gs	2.18 kg / 4.80 LBS 2178 g / 21.4 N	13.07 kg / 28.80 LBS ~0 Gs
5 mm	10.37 kg / 22.85 LBS 6 169 Gs	1.55 kg / 3.43 LBS 1555 g / 15.3 N	9.33 kg / 20.57 LBS ~0 Gs
10 mm	4.06 kg / 8.96 LBS 3 862 Gs	0.61 kg / 1.34 LBS 609 g / 6.0 N	3.66 kg / 8.06 LBS ~0 Gs
20 mm	0.63 kg / 1.40 LBS 1 526 Gs	0.10 kg / 0.21 LBS 95 g / 0.9 N	0.57 kg / 1.26 LBS ~0 Gs
50 mm	0.01 kg / 0.03 LBS 215 Gs	0.00 kg / 0.00 LBS 2 g / 0.0 N	0.01 kg / 0.02 LBS ~0 Gs
60 mm	0.01 kg / 0.01 LBS 136 Gs	0.00 kg / 0.00 LBS 1 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
70 mm	0.00 kg / 0.00 LBS 91 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 64 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 46 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 35 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 significantly greater distance than a magnet and steel combination. The setup of magnet-to-magnet produces a massive flux and a larger range of action. Planning to create a strong closure? Use a pair of magnets instead of one magnet and a steel. Be careful that when connecting a pair of magnets, the impact force is massive. The levitation is slightly lower than the attraction, but still impressive.
*The magnetic induction between like poles drops to ~0 Gs in the exact middle of the gap (due to field cancellation).
* Results show friction force of two identical magnets (friction coefficient ~0.15 for Ni-Ni plating).

Table 7: Protective zones (electronics) - precautionary measures
MW 15x8 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	8.0 cm
Hearing aid	10 Gs (1.0 mT)	6.5 cm
Timepiece	20 Gs (2.0 mT)	5.0 cm
Phone / Smartphone	40 Gs (4.0 mT)	4.0 cm
Remote	50 Gs (5.0 mT)	3.5 cm
Payment card	400 Gs (40.0 mT)	1.5 cm
HDD hard drive	600 Gs (60.0 mT)	1.5 cm

Powerful magnet radiation is a real danger to electronic devices and pacemakers. These NdFeB products produce a field that destroys function of digital equipment. Be aware: the invisible magnetic field acts through matter and housings. Exceptional care must be taken by people with hearing aids and drug dispensers. Influence will be felt by: automatic timepieces, remotes, speakers, and screens. Avoid contact with magnetic cards, hard drives, or precise measuring instruments.

Table 8: Collisions (kinetic energy) - collision effects
MW 15x8 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	27.06 km/h (7.52 m/s)	0.30 J
30 mm	46.07 km/h (12.80 m/s)	0.87 J
50 mm	59.46 km/h (16.52 m/s)	1.45 J
100 mm	84.09 km/h (23.36 m/s)	2.89 J

Neodymium magnets are delicate – a strong collision with metal risks their cracking. Watch the impact speed – a neodymium left loose becomes dangerous. Striking energy can trigger coating fragments or dangerous crushing to skin. Be sure to control the product during mounting so it doesn't slam with momentum against the steel surface. A collision at high speed ends with a crack of the magnet. Use safety goggles when handling with large magnets.

Table 9: Surface protection spec
MW 15x8 / 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. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Construction data (Flux)
MW 15x8 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	8 074 Mx	80.7 µWb
P_c Coefficient	0.61	High (Stable)

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

Table 11: Physics of underwater searching
MW 15x8 / N38

Environment	Effective steel pull	Effect
Air (land)	7.37 kg	Standard
Water (riverbed)	8.44 kg (+1.07 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.

Contrary to myths, water does not block the magnetic field. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Sliding resistance

*Note: On a vertical surface, the magnet retains just approx. 20-30% of its max power.

2. Steel thickness impact

*Thin metal sheet (e.g. 0.5mm PC case) significantly reduces the holding force.

3. Power loss vs temp

*For N38 material, the safety limit is 80°C.

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.61

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

Elemental analysis

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%

Ecology and recycling (GPSR)

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: 010032-2026

Magnet Unit Converter

Magnet pull force

Force in kg

Force in lbs

Magnetic Field

Gauss (Gs)

Induction (T)

Simply fill in any input, to let the calculator calculate everything else for you.

Check out more offers

Product available Ships tomorrow

MW 6x2 / N38 - cylindrical magnet

0.246 ZŁ brutto / pcs

Product available Ships tomorrow

JM 15x40 - jajka w pudełku/cena za parę - magnetic eggs

7.00 ZŁ brutto / pcs

Product available Ships tomorrow

UMGW 25x17x8 [M5] GW / N38 - magnetic holder internal thread

11.91 ZŁ brutto / pcs

Product available Ships tomorrow

MPL 60x10x5 / N38 - lamellar magnet

19.00 ZŁ brutto / pcs

This product is an incredibly powerful cylinder magnet, produced from modern NdFeB material, which, with dimensions of Ø15x8 mm, guarantees optimal power. This specific item boasts a tolerance of ±0.1mm and professional build quality, making it an ideal solution for the most demanding engineers and designers. As a cylindrical magnet with impressive force (approx. 7.37 kg), this product is in stock from our European logistics center, ensuring rapid order fulfillment. Moreover, its Ni-Cu-Ni coating secures 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 maximum induction on a small surface counts. Thanks to the high power of 72.28 N with a weight of only 10.6 g, this rod is indispensable in miniature devices and wherever low weight is crucial.

Since our magnets have a tolerance of ±0.1mm, the recommended way is to glue them into holes with a slightly larger diameter (e.g., 15.1 mm) using two-component epoxy glues. To ensure long-term durability in automation, anaerobic resins are used, which do not react with the nickel coating and fill the gap, guaranteeing durability 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 the strongest magnets in the same volume (Ø15x8), 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 Ø15x8 mm, which, at a weight of 10.6 g, makes it an element with impressive magnetic energy density. The value of 72.28 N means that the magnet is capable of holding a weight many times exceeding its own mass of 10.6 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 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.

Strengths and weaknesses of Nd₂Fe₁₄B magnets.

Advantages

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

They have constant strength, and over nearly 10 years their attraction force decreases symbolically – ~1% (in testing),
Neodymium magnets are characterized by highly resistant to magnetic field loss caused by external magnetic fields,
In other words, due to the aesthetic surface of nickel, the element is aesthetically pleasing,
The surface of neodymium magnets generates a intense magnetic field – this is one of their assets,
Thanks to resistance to high temperature, they are capable of working (depending on the shape) even at temperatures up to 230°C and higher...
Thanks to versatility in designing and the capacity to customize to specific needs,
Huge importance in modern technologies – they are commonly used in HDD drives, electromotive mechanisms, advanced medical instruments, as well as complex engineering applications.
Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Limitations

Characteristics of disadvantages of neodymium magnets: tips and applications.

They are fragile upon heavy impacts. To avoid cracks, it is worth protecting magnets in special housings. Such protection not only shields the magnet but also improves its resistance to damage
Neodymium magnets lose their power under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as those in rubber or plastics, which secure oxidation and corrosion.
Limited ability of producing nuts in the magnet and complex forms - preferred is a housing - magnet mounting.
Health risk resulting from small fragments of magnets pose a threat, if swallowed, which becomes key in the context of child health protection. It is also worth noting that small elements of these devices are able to be problematic in diagnostics medical after entering the body.
Due to complex production process, their price exceeds standard values,

Lifting parameters

Highest magnetic holding force – what it depends on?

The specified lifting capacity refers to the peak performance, measured under optimal environment, specifically:

on a plate made of structural steel, optimally conducting the magnetic field
with a cross-section of at least 10 mm
with an ground touching surface
under conditions of ideal adhesion (metal-to-metal)
during pulling in a direction vertical to the plane
at conditions approx. 20°C

Lifting capacity in real conditions – factors

Please note that the application force will differ influenced by the following factors, starting with the most relevant:

Gap (betwixt the magnet and the metal), since even a microscopic distance (e.g. 0.5 mm) results in a decrease in force by up to 50% (this also applies to paint, corrosion or dirt).
Direction of force – highest force is reached only during pulling at a 90° angle. The resistance to sliding of the magnet along the plate is usually many times smaller (approx. 1/5 of the lifting capacity).
Wall thickness – the thinner the sheet, the weaker the hold. Magnetic flux passes through the material instead of generating force.
Steel type – mild steel attracts best. Alloy steels reduce magnetic properties and holding force.
Base smoothness – the smoother and more polished the surface, the larger the contact zone and higher the lifting capacity. Unevenness creates an air distance.
Temperature influence – hot environment reduces magnetic field. Too high temperature can permanently demagnetize the magnet.

Lifting capacity testing was conducted on a smooth plate of suitable thickness, under a perpendicular pulling force, whereas under attempts to slide the magnet the holding force is lower. In addition, even a small distance between the magnet’s surface and the plate reduces the holding force.

Precautions when working with NdFeB magnets

Skin irritation risks

It is widely known that nickel (standard magnet coating) is a potent allergen. For allergy sufferers, avoid touching magnets with bare hands and choose versions in plastic housing.

Maximum temperature

Keep cool. NdFeB magnets are susceptible to heat. If you need resistance above 80°C, inquire about special high-temperature series (H, SH, UH).

Bone fractures

Large magnets can smash fingers in a fraction of a second. Under no circumstances place your hand between two strong magnets.

Threat to navigation

A powerful magnetic field disrupts the functioning of compasses in phones and GPS navigation. Keep magnets close to a smartphone to prevent breaking the sensors.

Cards and drives

Data protection: Strong magnets can ruin payment cards and sensitive devices (pacemakers, hearing aids, timepieces).

Magnets are brittle

Despite the nickel coating, neodymium is delicate and not impact-resistant. Do not hit, as the magnet may shatter into sharp, dangerous pieces.

Do not drill into magnets

Dust created during grinding of magnets is flammable. Avoid drilling into magnets unless you are an expert.

Do not give to children

Strictly keep magnets away from children. Risk of swallowing is significant, and the consequences of magnets clamping inside the body are fatal.

Health Danger

Individuals with a heart stimulator should keep an safe separation from magnets. The magnetism can disrupt the operation of the implant.

Safe operation

Before use, read the rules. Sudden snapping can break the magnet or hurt your hand. Think ahead.

Danger! More info about hazards in the article: Magnet Safety Guide.

MW 15x8 / N38 - cylindrical magnet

Technical details - MW 15x8 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical analysis of the magnet - data

Table 1: Static pull force (pull vs distance) - characteristics MW 15x8 / N38

Table 2: Vertical capacity (vertical surface) MW 15x8 / N38

Table 3: Vertical assembly (sliding) - vertical pull MW 15x8 / N38

Table 4: Material efficiency (saturation) - power losses MW 15x8 / N38

Table 5: Thermal resistance (stability) - thermal limit MW 15x8 / N38

Table 6: Magnet-Magnet interaction (attraction) - field range MW 15x8 / N38

Table 7: Protective zones (electronics) - precautionary measures MW 15x8 / N38

Table 8: Collisions (kinetic energy) - collision effects MW 15x8 / N38

Table 9: Surface protection spec MW 15x8 / N38

Table 10: Construction data (Flux) MW 15x8 / N38

Table 11: Physics of underwater searching MW 15x8 / N38

1. Sliding resistance

2. Steel thickness impact

3. Power loss vs temp

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

Elemental analysis

Ecology and recycling (GPSR)

Magnet pull force

Magnetic Field

Check out more offers

MW 6x2 / N38 - cylindrical magnet

JM 15x40 - jajka w pudełku/cena za parę - magnetic eggs

UMGW 25x17x8 [M5] GW / N38 - magnetic holder internal thread

MPL 60x10x5 / N38 - lamellar magnet

Strengths and weaknesses of Nd2Fe14B magnets.

Advantages

Limitations

Lifting parameters

Highest magnetic holding force – what it depends on?

Lifting capacity in real conditions – factors

Precautions when working with NdFeB magnets

Skin irritation risks

Maximum temperature

Bone fractures

Threat to navigation

Cards and drives

Magnets are brittle

Do not drill into magnets

Do not give to children

Health Danger

Safe operation

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (pull vs distance) - characteristics
MW 15x8 / N38

Table 2: Vertical capacity (vertical surface)
MW 15x8 / N38

Table 3: Vertical assembly (sliding) - vertical pull
MW 15x8 / N38

Table 4: Material efficiency (saturation) - power losses
MW 15x8 / N38

Table 5: Thermal resistance (stability) - thermal limit
MW 15x8 / N38

Table 6: Magnet-Magnet interaction (attraction) - field range
MW 15x8 / N38

Table 7: Protective zones (electronics) - precautionary measures
MW 15x8 / N38

Table 8: Collisions (kinetic energy) - collision effects
MW 15x8 / N38

Table 9: Surface protection spec
MW 15x8 / N38

Table 10: Construction data (Flux)
MW 15x8 / N38

Table 11: Physics of underwater searching
MW 15x8 / N38

Strengths and weaknesses of Nd₂Fe₁₄B magnets.