Product available Ships today (order by 14:00)

MW 38x15 / 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 010061

GTIN/EAN: 5906301810605

Diameter Ø

38 mm [±0,1 mm]

Height

15 mm [±0,1 mm]

Weight

127.59 g

Magnetization Direction

↑ axial

Load capacity

40.08 kg / 393.18 N

Magnetic Induction

384.07 mT / 3841 Gs

Coating

[NiCuNi] Nickel

technical parameters »

70.00 ZŁ with VAT / pcs + price for transport

56.91 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs

56.91 ZŁ

70.00 ZŁ

price from 20 pcs

53.50 ZŁ

65.80 ZŁ

price from 50 pcs

50.08 ZŁ

61.60 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Want to negotiate?

Call us +48 22 499 98 98 alternatively get in touch by means of our online form through our site.
Parameters and appearance of a magnet can be analyzed with our power calculator.

Order by 14:00 and we’ll ship today!

Technical specification - MW 38x15 / N38 - cylindrical magnet

Specification / characteristics - MW 38x15 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010061
GTIN/EAN	5906301810605
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	38 mm [±0,1 mm]
Height	15 mm [±0,1 mm]
Weight	127.59 g
Magnetization Direction	↑ axial
Load capacity ~ ?	40.08 kg / 393.18 N
Magnetic Induction ~ ?	384.07 mT / 3841 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 38x15 / 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 modeling of the product - data

The following information are the result of a mathematical calculation. Values are based on models for the class Nd₂Fe₁₄B. Actual parameters may differ. Use these calculations as a supplementary guide when designing systems.

Table 1: Static pull force (pull vs gap) - characteristics
MW 38x15 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	3840 Gs 384.0 mT	40.08 kg / 88.36 pounds 40080.0 g / 393.2 N	critical level
1 mm	3668 Gs 366.8 mT	36.56 kg / 80.61 pounds 36563.4 g / 358.7 N	critical level
2 mm	3485 Gs 348.5 mT	33.01 kg / 72.78 pounds 33011.6 g / 323.8 N	critical level
3 mm	3297 Gs 329.7 mT	29.55 kg / 65.14 pounds 29545.5 g / 289.8 N	critical level
5 mm	2917 Gs 291.7 mT	23.13 kg / 50.99 pounds 23128.9 g / 226.9 N	critical level
10 mm	2049 Gs 204.9 mT	11.41 kg / 25.15 pounds 11406.3 g / 111.9 N	critical level
15 mm	1396 Gs 139.6 mT	5.30 kg / 11.68 pounds 5297.4 g / 52.0 N	strong
20 mm	954 Gs 95.4 mT	2.47 kg / 5.45 pounds 2473.1 g / 24.3 N	strong
30 mm	474 Gs 47.4 mT	0.61 kg / 1.35 pounds 610.3 g / 6.0 N	safe
50 mm	155 Gs 15.5 mT	0.07 kg / 0.14 pounds 65.6 g / 0.6 N	safe

Grip strength drops significantly with every mm of gap. Remember that even a microscopic distance (e.g., contamination, paint, veneer) significantly weakens the grip. Magnetic products operate most effectively at the point of direct contact; distance drastically cuts the force. Observe how rapidly the pull force fall, when the magnet does not touch tightly to the steel surface. When planning the arrangement, eliminate unnecessary gaps.

Table 2: Sliding hold (vertical surface)
MW 38x15 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	8.02 kg / 17.67 pounds 8016.0 g / 78.6 N
1 mm	Stal (~0.2)	7.31 kg / 16.12 pounds 7312.0 g / 71.7 N
2 mm	Stal (~0.2)	6.60 kg / 14.55 pounds 6602.0 g / 64.8 N
3 mm	Stal (~0.2)	5.91 kg / 13.03 pounds 5910.0 g / 58.0 N
5 mm	Stal (~0.2)	4.63 kg / 10.20 pounds 4626.0 g / 45.4 N
10 mm	Stal (~0.2)	2.28 kg / 5.03 pounds 2282.0 g / 22.4 N
15 mm	Stal (~0.2)	1.06 kg / 2.34 pounds 1060.0 g / 10.4 N
20 mm	Stal (~0.2)	0.49 kg / 1.09 pounds 494.0 g / 4.8 N
30 mm	Stal (~0.2)	0.12 kg / 0.27 pounds 122.0 g / 1.2 N
50 mm	Stal (~0.2)	0.01 kg / 0.03 pounds 14.0 g / 0.1 N

This section calculates the theoretical shear load sufficient to start the sliding of the magnet downwards on a vertical steel wall (assuming typical friction). This value depends on the air gap between the magnet and the surface.

Table 3: Wall mounting (shearing) - vertical pull
MW 38x15 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	12.02 kg / 26.51 pounds 12024.0 g / 118.0 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	8.02 kg / 17.67 pounds 8016.0 g / 78.6 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	4.01 kg / 8.84 pounds 4008.0 g / 39.3 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	20.04 kg / 44.18 pounds 20040.0 g / 196.6 N

When mounting a element on a vertical surface (e.g., a fridge), it will maintain just about 1/5 of nominal attraction strength. Gravity as well as a weak degree of grip influence the fact that magnets slip easier than they pop off the substrate. Planning a hanger? Note that the shear force is much weaker than the maximum static pull force. On a painted metal, the holder will slip down under a noticeably lighter weight. Utilizing a rubberized coating can drastically raise the stability.

Table 4: Material efficiency (substrate influence) - power losses
MW 38x15 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	5%	2.00 kg / 4.42 pounds 2004.0 g / 19.7 N
1 mm	13%	5.01 kg / 11.05 pounds 5010.0 g / 49.1 N
2 mm	25%	10.02 kg / 22.09 pounds 10020.0 g / 98.3 N
3 mm	38%	15.03 kg / 33.14 pounds 15030.0 g / 147.4 N
5 mm	63%	25.05 kg / 55.23 pounds 25050.0 g / 245.7 N
10 mm	100%	40.08 kg / 88.36 pounds 40080.0 g / 393.2 N
11 mm	100%	40.08 kg / 88.36 pounds 40080.0 g / 393.2 N
12 mm	100%	40.08 kg / 88.36 pounds 40080.0 g / 393.2 N

A thin sheet is unable to absorb the entire magnetic field, which squanders power of the holder. Should you mount a strong magnet to a too thin substrate, the magnetism will pass right through and the attraction force will be weaker. To utilize the maximum of this neodymium's power, you need a suitably thick backing of metal. The material oversaturation means that on sheet metal structures (e.g., appliance housings), the holder holds weaker. We recommend selecting the steel cross-section based on the following data.

Table 5: Thermal resistance (material behavior) - resistance threshold
MW 38x15 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	40.08 kg / 88.36 pounds 40080.0 g / 393.2 N	OK
40 °C	-2.2%	39.20 kg / 86.42 pounds 39198.2 g / 384.5 N	OK
60 °C	-4.4%	38.32 kg / 84.47 pounds 38316.5 g / 375.9 N
80 °C	-6.6%	37.43 kg / 82.53 pounds 37434.7 g / 367.2 N
100 °C	-28.8%	28.54 kg / 62.91 pounds 28537.0 g / 279.9 N

Standard neodymium magnets irreversibly lose power after exceeding the maximum temperature. Watch out for overheating – excessive heat can irreversibly damage this magnet. With increasing heat, the neodymium's power momentarily drops. Refrain from using this product close to ovens exceeding its safe range. Ignoring the limit will result in irreversible degradation of magnetic properties.

*Important note: Thermal stability is determined by both grade, and the Permeance Coefficient Pc. Flat magnets (pancake types) are more susceptible to demagnetization sooner than long magnets. Red status in the table points to a risk of irreversible loss for this specific geometry.

Table 6: Magnet-Magnet interaction (repulsion) - field collision
MW 38x15 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Sliding Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	103.10 kg / 227.31 pounds 5 235 Gs	15.47 kg / 34.10 pounds 15466 g / 151.7 N	N/A
1 mm	98.64 kg / 217.47 pounds 7 512 Gs	14.80 kg / 32.62 pounds 14796 g / 145.2 N	88.78 kg / 195.72 pounds ~0 Gs
2 mm	94.06 kg / 207.36 pounds 7 336 Gs	14.11 kg / 31.10 pounds 14109 g / 138.4 N	84.65 kg / 186.63 pounds ~0 Gs
3 mm	89.48 kg / 197.26 pounds 7 155 Gs	13.42 kg / 29.59 pounds 13421 g / 131.7 N	80.53 kg / 177.53 pounds ~0 Gs
5 mm	80.42 kg / 177.30 pounds 6 783 Gs	12.06 kg / 26.60 pounds 12064 g / 118.3 N	72.38 kg / 159.57 pounds ~0 Gs
10 mm	59.50 kg / 131.17 pounds 5 834 Gs	8.92 kg / 19.68 pounds 8925 g / 87.6 N	53.55 kg / 118.05 pounds ~0 Gs
20 mm	29.34 kg / 64.69 pounds 4 097 Gs	4.40 kg / 9.70 pounds 4401 g / 43.2 N	26.41 kg / 58.22 pounds ~0 Gs
50 mm	3.08 kg / 6.80 pounds 1 328 Gs	0.46 kg / 1.02 pounds 463 g / 4.5 N	2.78 kg / 6.12 pounds ~0 Gs
60 mm	1.57 kg / 3.46 pounds 948 Gs	0.24 kg / 0.52 pounds 236 g / 2.3 N	1.41 kg / 3.12 pounds ~0 Gs
70 mm	0.84 kg / 1.85 pounds 694 Gs	0.13 kg / 0.28 pounds 126 g / 1.2 N	0.76 kg / 1.67 pounds ~0 Gs
80 mm	0.47 kg / 1.04 pounds 520 Gs	0.07 kg / 0.16 pounds 71 g / 0.7 N	0.42 kg / 0.94 pounds ~0 Gs
90 mm	0.28 kg / 0.61 pounds 398 Gs	0.04 kg / 0.09 pounds 42 g / 0.4 N	0.25 kg / 0.55 pounds ~0 Gs
100 mm	0.17 kg / 0.37 pounds 311 Gs	0.03 kg / 0.06 pounds 25 g / 0.2 N	0.15 kg / 0.33 pounds ~0 Gs

Two magnetic products interact from a wider radius than a neodymium and metal combination. The setup of two magnets generates a stronger field and a wider radius of action. Designing a strong closure? Utilize two neodymiums instead of one magnet and a striker plate. Be careful that when bringing together two magnets, the collision energy is massive. The levitation is slightly lower than the attraction, but still impressive.
*Field value between like poles reaches ~0 Gs in the exact middle of the gap (caused by magnetic field nullification).
* Results demonstrate friction force of two matching magnets (friction ~0.15 for Ni-Ni coating).

Table 7: Protective zones (implants) - precautionary measures
MW 38x15 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	18.5 cm
Hearing aid	10 Gs (1.0 mT)	14.5 cm
Mechanical watch	20 Gs (2.0 mT)	11.5 cm
Mobile device	40 Gs (4.0 mT)	9.0 cm
Car key	50 Gs (5.0 mT)	8.0 cm
Payment card	400 Gs (40.0 mT)	3.5 cm
HDD hard drive	600 Gs (60.0 mT)	3.0 cm

Powerful magnet radiation poses a serious hazard to electronics as well as pacemakers. These NdFeB products produce a flux that destroys function of sensitive medical devices. Notice: the invisible magnetic field passes through tissues and plastic. Special caution must be taken by people with hearing aids and insulin pumps. Influence will be felt by: automatic timepieces, remotes, speakers, and screens. Do not bring the product near payment cards, hard drives, or sensitive navigation tools.

Table 8: Dynamics (kinetic energy) - warning
MW 38x15 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	20.81 km/h (5.78 m/s)	2.13 J
30 mm	31.25 km/h (8.68 m/s)	4.81 J
50 mm	40.01 km/h (11.11 m/s)	7.88 J
100 mm	56.53 km/h (15.70 m/s)	15.73 J

Magnetic elements are delicate – a violent impact against metal causes immediate chipping. Pay attention to connection velocity – a neodymium left loose turns into a projectile. Kinetic force can cause material chips or dangerous crushing to skin. Be sure to control the product during mounting so it doesn't hit violently against the steel surface. A collision at high speed almost guarantees destruction of the magnet. Use safety goggles when handling with powerful specimens.

Table 9: Anti-corrosion coating durability
MW 38x15 / 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 38x15 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	45 065 Mx	450.7 µWb
P_c Coefficient	0.50	Low (Flat)

Total magnetic flux passing through the magnet pole. Essential parameter in coil applications as well as sensors. The P_c coefficient determines the working geometry.

Table 11: Physics of underwater searching
MW 38x15 / N38

Environment	Effective steel pull	Effect
Air (land)	40.08 kg	Standard
Water (riverbed)	45.89 kg (+5.81 kg buoyancy gain)	+14.5%

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

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

1. Shear force

*Caution: On a vertical surface, the magnet holds merely ~20% of its perpendicular strength.

2. Steel saturation

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

3. Heat tolerance

*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) = 0.50

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: 010061-2026

Magnet Unit Converter

Pulling force

Kilograms (kg)

Pounds (lbs)

Field Strength

Induction (Gs)

Insert a number into a field, and the remaining fields will update on the fly.

Check out more deals

Product available Ships today (order by 14:00)

SM 25x125 [2xM8] / N42 - magnetic separator

319.80 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

MW 10x20 / N38 - cylindrical magnet

4.92 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

UMP 94x40 [3xM10] GW F550 Silver Black / N52 - search holder

350.00 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

UMP 67x28 [M8+M10] GW F120 Lina / N38 - search holder

150.00 ZŁ brutto / pcs

The presented product is an extremely powerful cylindrical magnet, composed of advanced NdFeB material, which, with dimensions of Ø38x15 mm, guarantees maximum efficiency. The MW 38x15 / N38 component features a tolerance of ±0.1mm and industrial build quality, making it a perfect solution for the most demanding engineers and designers. As a cylindrical magnet with significant force (approx. 40.08 kg), this product is in stock from our warehouse in Poland, ensuring rapid order fulfillment. Moreover, its Ni-Cu-Ni coating effectively protects it against corrosion in typical operating conditions, ensuring an aesthetic appearance and durability for years.

It finds application in modeling, advanced automation, and broadly understood industry, serving as a positioning or actuating element. Thanks to the high power of 393.18 N with a weight of only 127.59 g, this cylindrical magnet is indispensable in electronics and wherever every gram matters.

Due to the delicate structure of the ceramic sinter, we absolutely advise against force-fitting (so-called press-fit), as this risks chipping the coating of this precision component. To ensure stability in industry, anaerobic resins are used, which do not react with the nickel coating and fill the gap, guaranteeing high repeatability of the connection.

Grade N38 is the most popular standard for professional neodymium magnets, offering an optimal price-to-power ratio and operational stability. If you need the strongest magnets in the same volume (Ø38x15), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our store.

This model is characterized by dimensions Ø38x15 mm, which, at a weight of 127.59 g, makes it an element with impressive magnetic energy density. The value of 393.18 N means that the magnet is capable of holding a weight many times exceeding its own mass of 127.59 g. The product has a [NiCuNi] coating, which protects the surface against oxidation, giving it an aesthetic, silvery shine.

This rod magnet is magnetized axially (along the height of 15 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 diametrically if your project requires it.

Pros as well as cons of neodymium magnets.

Benefits

Besides their immense field intensity, neodymium magnets offer the following advantages:

They do not lose power, even after nearly 10 years – the reduction in strength is only ~1% (theoretically),
Neodymium magnets prove to be remarkably resistant to loss of magnetic properties caused by external interference,
Thanks to the glossy finish, the layer of Ni-Cu-Ni, gold-plated, or silver gives an modern appearance,
Magnetic induction on the surface of the magnet turns out to be very high,
Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
Thanks to flexibility in forming and the capacity to adapt to individual projects,
Universal use in high-tech industry – they are used in HDD drives, electromotive mechanisms, medical equipment, and technologically advanced constructions.
Relatively small size with high pulling force – neodymium magnets offer high power in compact dimensions, which enables their usage in small systems

Weaknesses

Problematic aspects of neodymium magnets: weaknesses and usage proposals

Brittleness is one of their disadvantages. Upon intense impact they can break. We advise keeping them in a special holder, which not only secures them against impacts but also increases their durability
NdFeB magnets lose power 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 magnets in rubber or plastics, which secure oxidation and corrosion.
We suggest a housing - magnetic mechanism, due to difficulties in creating threads inside the magnet and complicated forms.
Potential hazard resulting from small fragments of magnets can be dangerous, if swallowed, which gains importance in the aspect of protecting the youngest. Additionally, small components of these products can complicate diagnosis medical when they are in the body.
With large orders the cost of neodymium magnets is a challenge,

Holding force characteristics

Maximum lifting force for a neodymium magnet – what affects it?

Magnet power is the result of a measurement for optimal configuration, assuming:

using a plate made of mild steel, serving as a magnetic yoke
possessing a massiveness of min. 10 mm to avoid saturation
with an polished contact surface
with zero gap (without paint)
under perpendicular force direction (90-degree angle)
in neutral thermal conditions

Practical aspects of lifting capacity – factors

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

Space between magnet and steel – every millimeter of separation (caused e.g. by veneer or unevenness) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
Loading method – catalog parameter refers to detachment vertically. When applying parallel force, the magnet exhibits much less (typically approx. 20-30% of maximum force).
Steel thickness – insufficiently thick sheet does not close the flux, causing part of the power to be wasted to the other side.
Chemical composition of the base – mild steel attracts best. Alloy admixtures decrease magnetic permeability and holding force.
Surface condition – ground elements ensure maximum contact, which improves force. Uneven metal weaken the grip.
Heat – NdFeB sinters have a sensitivity to temperature. When it is hot they lose power, and in frost they can be stronger (up to a certain limit).

Lifting capacity was measured by applying a steel plate with a smooth surface of optimal thickness (min. 20 mm), under vertically applied force, however under shearing force the lifting capacity is smaller. Moreover, even a small distance between the magnet’s surface and the plate reduces the holding force.

H&S for magnets

Medical interference

People with a pacemaker have to maintain an large gap from magnets. The magnetism can interfere with the operation of the life-saving device.

GPS Danger

Navigation devices and smartphones are extremely sensitive to magnetism. Direct contact with a powerful NdFeB magnet can permanently damage the internal compass in your phone.

Allergic reactions

Some people suffer from a sensitization to Ni, which is the common plating for NdFeB magnets. Prolonged contact can result in an allergic reaction. It is best to use safety gloves.

Thermal limits

Watch the temperature. Exposing the magnet above 80 degrees Celsius will ruin its properties and pulling force.

Finger safety

Large magnets can crush fingers in a fraction of a second. Do not place your hand betwixt two strong magnets.

Protective goggles

Despite the nickel coating, neodymium is brittle and cannot withstand shocks. Do not hit, as the magnet may crumble into hazardous fragments.

Protect data

Equipment safety: Strong magnets can ruin payment cards and delicate electronics (pacemakers, medical aids, mechanical watches).

Powerful field

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

Flammability

Dust produced during grinding of magnets is self-igniting. Do not drill into magnets without proper cooling and knowledge.

Keep away from children

Neodymium magnets are not toys. Accidental ingestion of several magnets may result in them attracting across intestines, which constitutes a direct threat to life and requires urgent medical intervention.

Warning! Learn more about risks in the article: Magnet Safety Guide.

MW 38x15 / N38 - cylindrical magnet

Technical specification - MW 38x15 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical modeling of the product - data

Table 1: Static pull force (pull vs gap) - characteristics MW 38x15 / N38

Table 2: Sliding hold (vertical surface) MW 38x15 / N38

Table 3: Wall mounting (shearing) - vertical pull MW 38x15 / N38

Table 4: Material efficiency (substrate influence) - power losses MW 38x15 / N38

Table 5: Thermal resistance (material behavior) - resistance threshold MW 38x15 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field collision MW 38x15 / N38

Table 7: Protective zones (implants) - precautionary measures MW 38x15 / N38

Table 8: Dynamics (kinetic energy) - warning MW 38x15 / N38

Table 9: Anti-corrosion coating durability MW 38x15 / N38

Table 10: Construction data (Pc) MW 38x15 / N38

Table 11: Physics of underwater searching MW 38x15 / N38

1. Shear force

2. Steel saturation

3. Heat tolerance

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

Elemental analysis

Ecology and recycling (GPSR)

Pulling force

Field Strength

Check out more deals

SM 25x125 [2xM8] / N42 - magnetic separator

MW 10x20 / N38 - cylindrical magnet

UMP 94x40 [3xM10] GW F550 Silver Black / N52 - search holder

UMP 67x28 [M8+M10] GW F120 Lina / N38 - search holder

Pros as well as cons of neodymium magnets.

Benefits

Weaknesses

Holding force characteristics

Maximum lifting force for a neodymium magnet – what affects it?

Practical aspects of lifting capacity – factors

H&S for magnets

Medical interference

GPS Danger

Allergic reactions

Thermal limits

Finger safety

Protective goggles

Protect data

Powerful field

Flammability

Keep away from children

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (pull vs gap) - characteristics
MW 38x15 / N38

Table 2: Sliding hold (vertical surface)
MW 38x15 / N38

Table 3: Wall mounting (shearing) - vertical pull
MW 38x15 / N38

Table 4: Material efficiency (substrate influence) - power losses
MW 38x15 / N38

Table 5: Thermal resistance (material behavior) - resistance threshold
MW 38x15 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field collision
MW 38x15 / N38

Table 7: Protective zones (implants) - precautionary measures
MW 38x15 / N38

Table 8: Dynamics (kinetic energy) - warning
MW 38x15 / N38

Table 9: Anti-corrosion coating durability
MW 38x15 / N38

Table 10: Construction data (P_c)
MW 38x15 / N38

Table 11: Physics of underwater searching
MW 38x15 / N38