Product available Ships today (order by 14:00)

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

see specifications »

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

Looking for a better price?

Give us a call +48 888 99 98 98 if you prefer drop us a message through our online form the contact form page.
Strength as well as shape of magnetic components can be verified using our magnetic calculator.

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

Detailed specification - 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

Physical simulation of the magnet - report

The following data constitute the outcome of a mathematical simulation. Values are based on algorithms for the material Nd₂Fe₁₄B. Actual performance might slightly differ from theoretical values. Treat these calculations as a preliminary roadmap when designing systems.

Table 1: Static force (pull vs distance) - interaction chart
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 pounds 1470.0 g / 14.4 N	safe
1 mm	4511 Gs 451.1 mT	0.84 kg / 1.85 pounds 837.8 g / 8.2 N	safe
2 mm	3262 Gs 326.2 mT	0.44 kg / 0.97 pounds 438.2 g / 4.3 N	safe
3 mm	2332 Gs 233.2 mT	0.22 kg / 0.49 pounds 224.0 g / 2.2 N	safe
5 mm	1238 Gs 123.8 mT	0.06 kg / 0.14 pounds 63.1 g / 0.6 N	safe
10 mm	366 Gs 36.6 mT	0.01 kg / 0.01 pounds 5.5 g / 0.1 N	safe
15 mm	155 Gs 15.5 mT	0.00 kg / 0.00 pounds 1.0 g / 0.0 N	safe
20 mm	80 Gs 8.0 mT	0.00 kg / 0.00 pounds 0.3 g / 0.0 N	safe
30 mm	30 Gs 3.0 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	safe
50 mm	8 Gs 0.8 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	safe

Pulling power decreases drastically per each millimeter of spacing. Keep in mind that every additional insulation layer (e.g., contamination, varnish, veneer) significantly diminishes the holding power. Neodymiums work most effectively at the point of direct contact; gap kills the force. See how quickly the load capacity plummet, when the product does not adhere flatly to the steel surface. When planning the arrangement, eliminate additional spacers.

Table 2: Sliding 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 pounds 294.0 g / 2.9 N
1 mm	Stal (~0.2)	0.17 kg / 0.37 pounds 168.0 g / 1.6 N
2 mm	Stal (~0.2)	0.09 kg / 0.19 pounds 88.0 g / 0.9 N
3 mm	Stal (~0.2)	0.04 kg / 0.10 pounds 44.0 g / 0.4 N
5 mm	Stal (~0.2)	0.01 kg / 0.03 pounds 12.0 g / 0.1 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 shows the estimated shear load needed to start the slippage of the magnet vertically along a vertical metal surface (assuming typical friction coefficient). This parameter depends on the gap size between the magnet and the metal.

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
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 pounds 441.0 g / 4.3 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.29 kg / 0.65 pounds 294.0 g / 2.9 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.15 kg / 0.32 pounds 147.0 g / 1.4 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.74 kg / 1.62 pounds 735.0 g / 7.2 N

When mounting a magnet on a upright surface (e.g., a fridge), it you can count on only approx. 1/5 of its nominal power. Gravitational force and a weak degree of grip influence the fact that products slide down easier than they pull off. Designing a vertical fastening? Remember that the shear force is much weaker than the perpendicular breakaway force. On a smooth steel, the element will give way down under a noticeably lighter load. Utilizing a rubberized coating can drastically improve the result.

Table 4: Steel thickness (saturation) - sheet metal selection
MW 8x15 / N38

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

A thin metal plate is not enough to conduct the full magnetic flux, which weakens actual performance of the magnet. If you mount a strong magnet to a weak sheet, the field will pass right through and the holding will be smaller. To utilize 100% of this magnet's power, you require a sufficiently solid backing of metal. The material oversaturation means that on thin elements (e.g., appliance housings), the holder works worse. We suggest choosing the steel thickness based on the following data.

Table 5: Thermal resistance (stability) - resistance threshold
MW 8x15 / N38

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

Standard neodymium magnets irreversibly lose strength above the temperature limit. Avoid high temperatures – heat can irreversibly demagnetize this magnet. As the temperature rises, the neodymium's force momentarily drops. Do not use this magnet near heat sources exceeding its safe range. Exceeding the critical threshold will lead to destruction of magnetic properties.

*Technical advisory: Heat tolerance depends not only on the material grade, as well as the dimension ratios. Flat magnets (low Pc) are more susceptible to demagnetization under lower heat stress compared to rod magnets. The danger warning in the table indicates a risk of irreversible loss for this particular item.

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MW 8x15 / N38

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

Two magnets interact from a much further distance than a magnet and steel combination. The setup of two magnets creates a more powerful interaction and a further horizon of action. Planning to create a solid fastener? Utilize two neodymiums instead of one magnet and a steel. Remember that when bringing together two magnets, the impact force is extreme. The repulsion force is a bit weaker than the connection force, but still significant.
*Field value for N-N configuration drops to ~0 Gs in the exact middle between the magnets (due to field cancellation).
Note: Estimates refer to friction force of two matching neodymium magnets (friction coefficient ~0.15 for Ni-Ni plating).

Table 7: Protective zones (implants) - warnings
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

A strong magnetic field poses a large risk to IT equipment as well as medical implants. These magnets generate a flux that destroys function of digital equipment. Be aware: the invisible magnetic field passes through tissues and glass. Exceptional care must be taken by people with hearing aids and insulin pumps. Also at risk are: mechanical watches, car keys, speakers, and displays. Avoid contact with magnetic cards, hard drives, or precise measuring instruments.

Table 8: Dynamics (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

Magnetic elements are prone to chipping – a collision with steel risks their cracking. Control the attraction moment – a neodymium left loose turns into a projectile. Kinetic force can destroy the magnet or painful pinches to fingers. Hold the magnet firmly during mounting so it doesn't hit with great force against the metal. A collision at high speed ends with a crack of the magnet. Wear safety glasses when playing with powerful specimens.

Table 9: Surface protection spec
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)

Neodymium magnets are highly susceptible to corrosion without proper protection. Note the thickness of the protective layer.

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 emitted by the magnet pole. Essential parameter in coil applications as well as sensors. The P_c coefficient determines the working geometry.

Table 11: Underwater work (magnet fishing)
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%

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

Water displaces steel, making heavy objects slightly lighter. However, remember the water resistance when pulling the rope quickly.

1. Shear force

*Caution: On a vertical wall, the magnet retains only a fraction of its max power.

2. Efficiency vs thickness

*Thin steel (e.g. 0.5mm PC case) severely limits the holding force.

3. Thermal stability

*For standard magnets, 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

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.

Engineering data and GPSR

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%

Environmental data

recyclability (EoL)	100%
recycled raw materials	~10% (pre-cons)
carbon footprint	low / zredukowany
waste code (EWC)	16 02 16

Safety card (GPSR)

responsible entity

Dhit sp. z o.o.

ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki

tel: +48 22 499 98 98 | e-mail: bok@dhit.pl

batch number/type

id: 010102-2025

Measurement Calculator

Magnet pull force

Force in kg

Newtons (N)

lbs

Magnetic Induction

Induction (Gs)

Tesla (T)

Simply populate a single box, to let the calculator calculate everything else for you.

Other offers

Product available Ships today (order by 14:00)

SM 25x200 [2xM8] / N42 - magnetic separator

541.20 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

BM 650x180x70 [4x M8] - magnetic beam

6131.43 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

MW 55x25 / N38 - cylindrical magnet

154.21 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

MW 5x5 / N38 - cylindrical magnet

0.394 ZŁ brutto / pcs

The offered product is a very strong cylindrical magnet, composed of durable NdFeB material, which, at dimensions of Ø8x15 mm, guarantees maximum efficiency. This specific item features 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. 1.47 kg), this product is in stock from our European logistics center, ensuring lightning-fast order fulfillment. Furthermore, its Ni-Cu-Ni coating effectively protects it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.

It finds application in DIY projects, advanced automation, and broadly understood industry, serving as a positioning or actuating element. Thanks to the pull force of 14.45 N with a weight of only 5.65 g, this cylindrical magnet is indispensable in electronics and wherever low weight is crucial.

Due to the delicate structure of the ceramic sinter, you must not use force-fitting (so-called press-fit), as this risks chipping the coating of this precision component. To ensure long-term durability in automation, specialized industrial adhesives are used, which are safe for nickel and fill the gap, guaranteeing high repeatability of the connection.

Magnets NdFeB grade 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 (Ø8x15), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our warehouse.

The presented product is a neodymium magnet with precisely defined parameters: diameter 8 mm and height 15 mm. The key parameter here is the lifting capacity amounting to approximately 1.47 kg (force ~14.45 N), which, with such compact dimensions, proves the high grade of the NdFeB material. 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 through the diameter if your project requires it.

Strengths as well as weaknesses of rare earth magnets.

Strengths

Apart from their superior power, neodymium magnets have these key benefits:

They do not lose magnetism, even during approximately ten years – the decrease in lifting capacity is only ~1% (according to tests),
Neodymium magnets are remarkably resistant to demagnetization caused by external magnetic fields,
In other words, due to the glossy finish of nickel, the element gains visual value,
Neodymium magnets deliver maximum magnetic induction on a their surface, which allows for strong attraction,
Through (appropriate) combination of ingredients, they can achieve high thermal strength, allowing for action at temperatures approaching 230°C and above...
Thanks to versatility in constructing and the ability to adapt to client solutions,
Versatile presence in modern industrial fields – they are utilized in computer drives, brushless drives, diagnostic systems, also modern systems.
Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Cons

Disadvantages of NdFeB magnets:

They are prone to damage upon too strong impacts. To avoid cracks, it is worth securing magnets in special housings. Such protection not only shields the magnet but also increases its resistance to damage
NdFeB magnets lose strength 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 very resistant to heat
They oxidize in a humid environment. For use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
We recommend a housing - magnetic mechanism, due to difficulties in creating nuts inside the magnet and complex shapes.
Health risk to health – tiny shards of magnets can be dangerous, if swallowed, which gains importance in the context of child health protection. Furthermore, small components of these products can disrupt the diagnostic process medical when they are in the body.
With mass production the cost of neodymium magnets is economically unviable,

Pull force analysis

Highest magnetic holding force – what contributes to it?

The load parameter shown concerns the maximum value, recorded under laboratory conditions, namely:

using a sheet made of high-permeability steel, acting as a magnetic yoke
whose thickness reaches at least 10 mm
with a surface cleaned and smooth
under conditions of no distance (surface-to-surface)
for force applied at a right angle (pull-off, not shear)
in stable room temperature

Lifting capacity in real conditions – factors

Real force is influenced by working environment parameters, such as (from most important):

Space between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by veneer or dirt) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
Force direction – declared lifting capacity refers to pulling vertically. When slipping, the magnet holds significantly lower power (often approx. 20-30% of maximum force).
Element thickness – for full efficiency, the steel must be sufficiently thick. Paper-thin metal limits the attraction force (the magnet "punches through" it).
Material composition – not every steel attracts identically. Alloy additives weaken the attraction effect.
Base smoothness – the more even the surface, the better the adhesion and stronger the hold. Roughness creates an air distance.
Thermal environment – temperature increase results in weakening of induction. It is worth remembering the maximum operating temperature for a given model.

Lifting capacity was measured with the use of a smooth 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 slight gap between the magnet’s surface and the plate reduces the load capacity.

Warnings

Avoid contact if allergic

Allergy Notice: The nickel-copper-nickel coating contains nickel. If an allergic reaction appears, immediately stop handling magnets and wear gloves.

Bodily injuries

Large magnets can crush fingers instantly. Do not put your hand between two attracting surfaces.

Shattering risk

Watch out for shards. Magnets can explode upon violent connection, launching sharp fragments into the air. Eye protection is mandatory.

Do not overheat magnets

Do not overheat. Neodymium magnets are susceptible to temperature. If you need resistance above 80°C, look for HT versions (H, SH, UH).

No play value

Product intended for adults. Small elements can be swallowed, causing severe trauma. Store away from kids and pets.

Do not drill into magnets

Powder generated during grinding of magnets is combustible. Avoid drilling into magnets unless you are an expert.

Caution required

Use magnets with awareness. Their immense force can shock even experienced users. Be vigilant and respect their power.

Precision electronics

A strong magnetic field interferes with the operation of compasses in phones and navigation systems. Do not bring magnets close to a smartphone to prevent damaging the sensors.

Cards and drives

Powerful magnetic fields can erase data on payment cards, HDDs, and other magnetic media. Stay away of at least 10 cm.

Medical implants

Individuals with a ICD have to maintain an absolute distance from magnets. The magnetism can interfere with the functioning of the life-saving device.

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

MW 8x15 / N38 - cylindrical magnet

Detailed specification - MW 8x15 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical simulation of the magnet - report

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

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

Table 3: Wall mounting (shearing) - behavior on slippery surfaces MW 8x15 / N38

Table 4: Steel thickness (saturation) - sheet metal selection MW 8x15 / N38

Table 5: Thermal resistance (stability) - resistance threshold MW 8x15 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system MW 8x15 / N38

Table 7: Protective zones (implants) - warnings MW 8x15 / N38

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

Table 9: Surface protection spec MW 8x15 / N38

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

Table 11: Underwater work (magnet fishing) MW 8x15 / N38

1. Shear force

2. Efficiency vs thickness

3. Thermal stability

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

Elemental analysis

Environmental data

Magnet pull force

Magnetic Induction

Other offers

SM 25x200 [2xM8] / N42 - magnetic separator

BM 650x180x70 [4x M8] - magnetic beam

MW 55x25 / N38 - cylindrical magnet

MW 5x5 / N38 - cylindrical magnet

Strengths as well as weaknesses of rare earth magnets.

Strengths

Cons

Pull force analysis

Highest magnetic holding force – what contributes to it?

Lifting capacity in real conditions – factors

Warnings

Avoid contact if allergic

Bodily injuries

Shattering risk

Do not overheat magnets

No play value

Do not drill into magnets

Caution required

Precision electronics

Cards and drives

Medical implants

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

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

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MW 8x15 / N38

Table 4: Steel thickness (saturation) - sheet metal selection
MW 8x15 / N38

Table 5: Thermal resistance (stability) - resistance threshold
MW 8x15 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MW 8x15 / N38

Table 7: Protective zones (implants) - warnings
MW 8x15 / N38

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

Table 9: Surface protection spec
MW 8x15 / N38

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

Table 11: Underwater work (magnet fishing)
MW 8x15 / N38