Product available Ships tomorrow

MW 15x5 / 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 010031

GTIN/EAN: 5906301810308

5.00

Diameter Ø

15 mm [±0,1 mm]

Height

5 mm [±0,1 mm]

Weight

6.63 g

Magnetization Direction

↑ axial

Load capacity

5.39 kg / 52.83 N

Magnetic Induction

343.70 mT / 3437 Gs

Coating

[NiCuNi] Nickel

check technical data »

3.20 ZŁ with VAT / pcs + price for transport

2.60 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs

2.60 ZŁ

3.20 ZŁ

price from 250 pcs

2.44 ZŁ

3.01 ZŁ

price from 1000 pcs

2.29 ZŁ

2.81 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Not sure about your choice?

Contact us by phone +48 888 99 98 98 if you prefer contact us by means of contact form through our site.
Specifications and appearance of a magnet can be verified with our online calculation tool.

Orders submitted before 14:00 will be dispatched today!

Detailed specification - MW 15x5 / N38 - cylindrical magnet

Specification / characteristics - MW 15x5 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010031
GTIN/EAN	5906301810308
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	5 mm [±0,1 mm]
Weight	6.63 g
Magnetization Direction	↑ axial
Load capacity ~ ?	5.39 kg / 52.83 N
Magnetic Induction ~ ?	343.70 mT / 3437 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 15x5 / 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 simulation of the product - report

These information are the direct effect of a engineering calculation. Results rely on algorithms for the material Nd₂Fe₁₄B. Real-world performance might slightly differ. Use these calculations as a reference point during assembly planning.

Table 1: Static pull force (pull vs gap) - characteristics
MW 15x5 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	3436 Gs 343.6 mT	5.39 kg / 11.88 lbs 5390.0 g / 52.9 N	strong
1 mm	3054 Gs 305.4 mT	4.26 kg / 9.39 lbs 4258.2 g / 41.8 N	strong
2 mm	2633 Gs 263.3 mT	3.17 kg / 6.98 lbs 3165.4 g / 31.1 N	strong
3 mm	2221 Gs 222.1 mT	2.25 kg / 4.96 lbs 2251.5 g / 22.1 N	strong
5 mm	1521 Gs 152.1 mT	1.06 kg / 2.33 lbs 1056.2 g / 10.4 N	low risk
10 mm	585 Gs 58.5 mT	0.16 kg / 0.35 lbs 156.5 g / 1.5 N	low risk
15 mm	260 Gs 26.0 mT	0.03 kg / 0.07 lbs 30.8 g / 0.3 N	low risk
20 mm	133 Gs 13.3 mT	0.01 kg / 0.02 lbs 8.1 g / 0.1 N	low risk
30 mm	47 Gs 4.7 mT	0.00 kg / 0.00 lbs 1.0 g / 0.0 N	low risk
50 mm	12 Gs 1.2 mT	0.00 kg / 0.00 lbs 0.1 g / 0.0 N	low risk

Grip strength weakens significantly per each millimeter of spacing. Note that even a microscopic distance (e.g., contamination, varnish, dust) strongly reduces the pull force. Magnets operate strongest during direct contact; distance weakens the power. See how rapidly the pull force fall, when the magnet does not touch directly to the steel surface. When designing the mounting, avoid additional spacers.

Table 2: Shear force (vertical surface)
MW 15x5 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	1.08 kg / 2.38 lbs 1078.0 g / 10.6 N
1 mm	Stal (~0.2)	0.85 kg / 1.88 lbs 852.0 g / 8.4 N
2 mm	Stal (~0.2)	0.63 kg / 1.40 lbs 634.0 g / 6.2 N
3 mm	Stal (~0.2)	0.45 kg / 0.99 lbs 450.0 g / 4.4 N
5 mm	Stal (~0.2)	0.21 kg / 0.47 lbs 212.0 g / 2.1 N
10 mm	Stal (~0.2)	0.03 kg / 0.07 lbs 32.0 g / 0.3 N
15 mm	Stal (~0.2)	0.01 kg / 0.01 lbs 6.0 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

The following data presents the approximate holding capacity necessary to cause the sliding of the magnet down on a vertical steel wall (considering typical friction). This value depends on the distance between the magnet and the metal.

Table 3: Vertical assembly (sliding) - vertical pull
MW 15x5 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	1.62 kg / 3.56 lbs 1617.0 g / 15.9 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	1.08 kg / 2.38 lbs 1078.0 g / 10.6 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.54 kg / 1.19 lbs 539.0 g / 5.3 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	2.70 kg / 5.94 lbs 2695.0 g / 26.4 N

When hanging a magnet on a upright plane (e.g., a fridge), it you can count on only about 1/5 of nominal attraction strength. Gravitational force and a weak degree of grip cause that holders move down easier than they pull off. Want to create a vertical fastening? Note that the sliding force is significantly lower than the perpendicular breakaway force. On a painted metal, the magnet will slide down under a much lighter weight. Utilizing a rubberized coating can drastically increase the grip.

Table 4: Material efficiency (substrate influence) - sheet metal selection
MW 15x5 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.54 kg / 1.19 lbs 539.0 g / 5.3 N
1 mm	25%	1.35 kg / 2.97 lbs 1347.5 g / 13.2 N
2 mm	50%	2.70 kg / 5.94 lbs 2695.0 g / 26.4 N
3 mm	75%	4.04 kg / 8.91 lbs 4042.5 g / 39.7 N
5 mm	100%	5.39 kg / 11.88 lbs 5390.0 g / 52.9 N
10 mm	100%	5.39 kg / 11.88 lbs 5390.0 g / 52.9 N
11 mm	100%	5.39 kg / 11.88 lbs 5390.0 g / 52.9 N
12 mm	100%	5.39 kg / 11.88 lbs 5390.0 g / 52.9 N

A too thin steel is incapable of absorb the entire magnetic field, which wastes potential of the magnet. Should you mount a strong magnet to a weak sheet, the magnetism will penetrate right through and the holding will be smaller. To utilize 100% of this magnet's power, you need a suitably thick backing of steel. The saturation phenomenon causes that on sheet metal structures (e.g., appliance housings), the holder holds weaker. We suggest choosing the steel cross-section according to the table below.

Table 5: Thermal stability (stability) - thermal limit
MW 15x5 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	5.39 kg / 11.88 lbs 5390.0 g / 52.9 N	OK
40 °C	-2.2%	5.27 kg / 11.62 lbs 5271.4 g / 51.7 N	OK
60 °C	-4.4%	5.15 kg / 11.36 lbs 5152.8 g / 50.5 N
80 °C	-6.6%	5.03 kg / 11.10 lbs 5034.3 g / 49.4 N
100 °C	-28.8%	3.84 kg / 8.46 lbs 3837.7 g / 37.6 N

Ordinary NdFeB products lose parameters after exceeding the maximum temperature. Protect against heat – high temperature can permanently demagnetize this product. With increasing heat, the neodymium's force briefly decreases. Do not use this product in hot environments higher than its working range. Exceeding the critical threshold will cause destruction of magnetism.

*Technical advisory: Temperature resistance is determined by both grade, as well as the dimension ratios. Thin magnets (pancake types) may lose charge permanently under lower heat stress than long magnets. The danger warning in the table indicates a risk of irreversible loss for this particular item.

Table 6: Magnet-Magnet interaction (repulsion) - forces in the system
MW 15x5 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	12.86 kg / 28.35 lbs 4 954 Gs	1.93 kg / 4.25 lbs 1929 g / 18.9 N	N/A
1 mm	11.54 kg / 25.43 lbs 6 508 Gs	1.73 kg / 3.81 lbs 1730 g / 17.0 N	10.38 kg / 22.89 lbs ~0 Gs
2 mm	10.16 kg / 22.40 lbs 6 107 Gs	1.52 kg / 3.36 lbs 1524 g / 14.9 N	9.14 kg / 20.16 lbs ~0 Gs
3 mm	8.82 kg / 19.44 lbs 5 689 Gs	1.32 kg / 2.92 lbs 1322 g / 13.0 N	7.93 kg / 17.49 lbs ~0 Gs
5 mm	6.40 kg / 14.11 lbs 4 847 Gs	0.96 kg / 2.12 lbs 960 g / 9.4 N	5.76 kg / 12.70 lbs ~0 Gs
10 mm	2.52 kg / 5.56 lbs 3 042 Gs	0.38 kg / 0.83 lbs 378 g / 3.7 N	2.27 kg / 5.00 lbs ~0 Gs
20 mm	0.37 kg / 0.82 lbs 1 171 Gs	0.06 kg / 0.12 lbs 56 g / 0.5 N	0.34 kg / 0.74 lbs ~0 Gs
50 mm	0.01 kg / 0.01 lbs 153 Gs	0.00 kg / 0.00 lbs 1 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
60 mm	0.00 kg / 0.01 lbs 95 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 63 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 44 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 32 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 23 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs

Two magnets attract each other from a much further distance than a magnet and steel combination. The connection of magnet-to-magnet creates a more powerful interaction and a wider radius of action. Designing a solid fastener? Utilize two neodymiums instead of a neodymium and a striker plate. Be careful that when attracting two neodymiums, the pinch force is extreme. The repulsion force is slightly lower than the attraction, but still large.
*Flux density in repulsion mode reaches ~0 Gs at the midpoint of the gap (due to field cancellation).
* Estimates show sliding force of a pair of matching neodymium magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Safety (HSE) (electronics) - warnings
MW 15x5 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	7.0 cm
Hearing aid	10 Gs (1.0 mT)	5.5 cm
Mechanical watch	20 Gs (2.0 mT)	4.5 cm
Phone / Smartphone	40 Gs (4.0 mT)	3.5 cm
Remote	50 Gs (5.0 mT)	3.0 cm
Payment card	400 Gs (40.0 mT)	1.5 cm
HDD hard drive	600 Gs (60.0 mT)	1.0 cm

Extremely neodym field is a serious hazard to electronic devices as well as pacemakers. These NdFeB products produce a field that prevents correct functioning of sensitive medical devices. Notice: the unseen radiation acts through matter and glass. Special caution must be taken by people with cochlear implants and drug dispensers. The risk also applies to: mechanical watches, remotes, membranes, and displays. Do not bring the product near payment cards, hard drives, or precise measuring instruments.

Table 8: Impact energy (kinetic energy) - warning
MW 15x5 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	29.27 km/h (8.13 m/s)	0.22 J
30 mm	49.81 km/h (13.84 m/s)	0.63 J
50 mm	64.30 km/h (17.86 m/s)	1.06 J
100 mm	90.93 km/h (25.26 m/s)	2.12 J

Magnetic elements are delicate – a violent impact against metal can result in shattering. Watch the impact speed – a neodymium left loose becomes dangerous. Striking energy can cause material chips or painful pinches to skin. Hold the magnet firmly during mounting so it doesn't slam with momentum against the steel surface. A contact at a velocity of dozens of km/h means shattering of the neodymium. Wear eye protection when handling with large magnets.

Table 9: Surface protection spec
MW 15x5 / 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. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Construction data (Flux)
MW 15x5 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	6 428 Mx	64.3 µWb
P_c Coefficient	0.44	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 magnet's operating point.

Table 11: Physics of underwater searching
MW 15x5 / N38

Environment	Effective steel pull	Effect
Air (land)	5.39 kg	Standard
Water (riverbed)	6.17 kg (+0.78 kg buoyancy gain)	+14.5%

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

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

*Note: On a vertical surface, the magnet retains only approx. 20-30% of its nominal pull.

2. Plate thickness effect

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

3. Heat tolerance

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

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.44

The chart above illustrates the magnetic characteristics of the material within the second quadrant of the hysteresis loop. The solid red line represents the demagnetization curve (material potential), while the dashed blue line is the load line based on the magnet's geometry. The P_c (Permeance Coefficient), also known as the load line slope, is a dimensionless value that describes the relationship between the magnet's shape and its magnetic stability. The intersection of these two lines (the black dot) is the operating point — it determines the actual magnetic flux density generated by the magnet in this specific configuration. A higher P_c value means the magnet is more 'slender' (tall relative to its area), resulting in a higher operating point and better resistance to irreversible demagnetization caused by external fields or temperature. A value of 0.42 is relatively low (typical for flat magnets), meaning the operating point is closer to the 'knee' of the curve — caution is advised when operating at temperatures near the maximum limit to avoid strength loss.

Technical and environmental data

Chemical composition

iron (Fe)	64% – 68%
neodymium (Nd)	29% – 32%
boron (B)	1.1% – 1.2%
dysprosium (Dy)	0.5% – 2.0%
coating (Ni-Cu-Ni)	< 0.05%

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: 010031-2026

Magnet Unit Converter

Pulling force

Kilograms (kg)

Force (N)

lbs

Magnetic Field

Induction (Gs)

Input a figure in just one slot to see the conversion in all other fields immediately.

View also deals

Product available Ships tomorrow

MP 10x7/3.5x3 / N38 - ring magnet

0.824 ZŁ brutto / pcs

Product available Ships tomorrow

MW 18.9x10 / N38 - cylindrical magnet

11.07 ZŁ brutto / pcs

Product available Ships tomorrow

SM 25x225 [2xM8] / N42 - magnetic separator

615.00 ZŁ brutto / pcs

Product available Ships tomorrow

SM 32x275 [2xM8] / N42 - magnetic separator

824.10 ZŁ brutto / pcs

The presented product is an incredibly powerful cylinder magnet, composed of durable NdFeB material, which, at dimensions of Ø15x5 mm, guarantees the highest energy density. The MW 15x5 / N38 component boasts an accuracy of ±0.1mm and professional build quality, making it an ideal solution for professional engineers and designers. As a magnetic rod with impressive force (approx. 5.39 kg), this product is in stock from our European logistics center, ensuring lightning-fast order fulfillment. Furthermore, its triple-layer Ni-Cu-Ni coating shields it against corrosion in typical operating conditions, ensuring an aesthetic appearance and durability for years.

This model is ideal for building electric motors, advanced sensors, and efficient filters, where field concentration on a small surface counts. Thanks to the high power of 52.83 N with a weight of only 6.63 g, this rod is indispensable in electronics and wherever low weight is crucial.

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 professional 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 frequently chosen standard for industrial neodymium magnets, offering a great economic balance and operational stability. If you need even stronger magnets in the same volume (Ø15x5), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our warehouse.

This model is characterized by dimensions Ø15x5 mm, which, at a weight of 6.63 g, makes it an element with high magnetic energy density. The key parameter here is the holding force amounting to approximately 5.39 kg (force ~52.83 N), which, with such defined dimensions, proves the high power of the NdFeB material. The product has a [NiCuNi] coating, which secures it against oxidation, 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 15 mm. 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.

Strengths as well as weaknesses of Nd₂Fe₁₄B magnets.

Strengths

Besides their exceptional magnetic power, neodymium magnets offer the following advantages:

Their magnetic field is durable, and after around ten years it decreases only by ~1% (according to research),
Neodymium magnets prove to be extremely resistant to loss of magnetic properties caused by external field sources,
Thanks to the glossy finish, the layer of nickel, gold-plated, or silver-plated gives an visually attractive appearance,
Neodymium magnets ensure maximum magnetic induction on a contact point, which ensures high operational effectiveness,
Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the form) even at high temperatures reaching 230°C or more...
Thanks to modularity in shaping and the capacity to customize to complex applications,
Versatile presence in advanced technology sectors – they serve a role in data components, brushless drives, advanced medical instruments, and complex engineering applications.
Thanks to efficiency per cm³, small magnets offer high operating force, in miniature format,

Cons

Disadvantages of NdFeB magnets:

Brittleness is one of their disadvantages. Upon intense impact they can break. We recommend keeping them in a special holder, which not only secures 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 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 extremely resistant to heat
Magnets exposed to a humid environment can rust. Therefore while using outdoors, we recommend using waterproof magnets made of rubber, plastic or other material protecting against moisture
Limited ability of producing nuts in the magnet and complex shapes - recommended is a housing - magnet mounting.
Potential hazard related to microscopic parts of magnets can be dangerous, when accidentally swallowed, which is particularly important in the context of child safety. Additionally, small components of these products can be problematic in diagnostics medical after entering the body.
Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Lifting parameters

Best holding force of the magnet in ideal parameters – what it depends on?

Breakaway force was determined for ideal contact conditions, taking into account:

using a plate made of high-permeability steel, functioning as a magnetic yoke
possessing a massiveness of at least 10 mm to avoid saturation
with an polished touching surface
under conditions of gap-free contact (surface-to-surface)
under perpendicular application of breakaway force (90-degree angle)
at standard ambient temperature

Determinants of practical lifting force of a magnet

It is worth knowing that the application force will differ influenced by the following factors, starting with the most relevant:

Distance – existence of any layer (rust, tape, gap) acts as an insulator, which reduces power steeply (even by 50% at 0.5 mm).
Direction of force – highest force is obtained only during pulling at a 90° angle. The shear force of the magnet along the surface is usually several times smaller (approx. 1/5 of the lifting capacity).
Plate thickness – too thin steel does not close the flux, causing part of the power to be lost to the other side.
Steel grade – the best choice is pure iron steel. Cast iron may generate lower lifting capacity.
Base smoothness – the smoother and more polished the surface, the better the adhesion and stronger the hold. Unevenness creates an air distance.
Thermal environment – heating the magnet causes a temporary drop of force. It is worth remembering the maximum operating temperature for a given model.

Holding force was checked on the plate surface of 20 mm thickness, when a perpendicular force was applied, in contrast under shearing force the holding force is lower. In addition, even a small distance between the magnet and the plate decreases the holding force.

Safety rules for work with neodymium magnets

Threat to navigation

A strong magnetic field negatively affects the operation of compasses in phones and navigation systems. Maintain magnets near a smartphone to prevent breaking the sensors.

Life threat

Medical warning: Strong magnets can turn off pacemakers and defibrillators. Do not approach if you have medical devices.

Machining danger

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

Magnet fragility

Beware of splinters. Magnets can explode upon uncontrolled impact, launching sharp fragments into the air. Wear goggles.

Crushing force

Large magnets can break fingers instantly. Under no circumstances put your hand betwixt two strong magnets.

Electronic hazard

Powerful magnetic fields can corrupt files on credit cards, hard drives, and other magnetic media. Keep a distance of at least 10 cm.

Do not give to children

These products are not intended for children. Swallowing multiple magnets can lead to them connecting inside the digestive tract, which constitutes a direct threat to life and requires urgent medical intervention.

Respect the power

Exercise caution. Rare earth magnets attract from a distance and connect with massive power, often quicker than you can react.

Power loss in heat

Monitor thermal conditions. Exposing the magnet above 80 degrees Celsius will permanently weaken its magnetic structure and strength.

Warning for allergy sufferers

A percentage of the population experience a hypersensitivity to nickel, which is the typical protective layer for neodymium magnets. Frequent touching might lead to skin redness. We suggest use safety gloves.

Safety First! Details about hazards in the article: Magnet Safety Guide.

MW 15x5 / N38 - cylindrical magnet

Detailed specification - MW 15x5 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical simulation of the product - report

Table 1: Static pull force (pull vs gap) - characteristics MW 15x5 / N38

Table 2: Shear force (vertical surface) MW 15x5 / N38

Table 3: Vertical assembly (sliding) - vertical pull MW 15x5 / N38

Table 4: Material efficiency (substrate influence) - sheet metal selection MW 15x5 / N38

Table 5: Thermal stability (stability) - thermal limit MW 15x5 / N38

Table 6: Magnet-Magnet interaction (repulsion) - forces in the system MW 15x5 / N38

Table 7: Safety (HSE) (electronics) - warnings MW 15x5 / N38

Table 8: Impact energy (kinetic energy) - warning MW 15x5 / N38

Table 9: Surface protection spec MW 15x5 / N38

Table 10: Construction data (Flux) MW 15x5 / N38

Table 11: Physics of underwater searching MW 15x5 / N38

1. Shear force

2. Plate thickness effect

3. Heat tolerance

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

Chemical composition

Ecology and recycling (GPSR)

Pulling force

Magnetic Field

View also deals

MP 10x7/3.5x3 / N38 - ring magnet

MW 18.9x10 / N38 - cylindrical magnet

SM 25x225 [2xM8] / N42 - magnetic separator

SM 32x275 [2xM8] / N42 - magnetic separator

Strengths as well as weaknesses of Nd2Fe14B magnets.

Strengths

Cons

Lifting parameters

Best holding force of the magnet in ideal parameters – what it depends on?

Determinants of practical lifting force of a magnet

Safety rules for work with neodymium magnets

Threat to navigation

Life threat

Machining danger

Magnet fragility

Crushing force

Electronic hazard

Do not give to children

Respect the power

Power loss in heat

Warning for allergy sufferers

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (pull vs gap) - characteristics
MW 15x5 / N38

Table 2: Shear force (vertical surface)
MW 15x5 / N38

Table 3: Vertical assembly (sliding) - vertical pull
MW 15x5 / N38

Table 4: Material efficiency (substrate influence) - sheet metal selection
MW 15x5 / N38

Table 5: Thermal stability (stability) - thermal limit
MW 15x5 / N38

Table 6: Magnet-Magnet interaction (repulsion) - forces in the system
MW 15x5 / N38

Table 7: Safety (HSE) (electronics) - warnings
MW 15x5 / N38

Table 8: Impact energy (kinetic energy) - warning
MW 15x5 / N38

Table 9: Surface protection spec
MW 15x5 / N38

Table 10: Construction data (Flux)
MW 15x5 / N38

Table 11: Physics of underwater searching
MW 15x5 / N38

Strengths as well as weaknesses of Nd₂Fe₁₄B magnets.