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MW 15x3 / 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 010029

GTIN/EAN: 5906301810285

5.00

Diameter Ø

15 mm [±0,1 mm]

Height

3 mm [±0,1 mm]

Weight

3.98 g

Magnetization Direction

↑ axial

Load capacity

2.87 kg / 28.14 N

Magnetic Induction

230.16 mT / 2302 Gs

Coating

[NiCuNi] Nickel

see specifications »

1.624 ZŁ with VAT / pcs + price for transport

1.320 ZŁ net + 23% VAT / pcs

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Technical of the product - MW 15x3 / N38 - cylindrical magnet

Specification / characteristics - MW 15x3 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010029
GTIN/EAN	5906301810285
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	3 mm [±0,1 mm]
Weight	3.98 g
Magnetization Direction	↑ axial
Load capacity ~ ?	2.87 kg / 28.14 N
Magnetic Induction ~ ?	230.16 mT / 2302 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 15x3 / 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 magnet - technical parameters

Presented data represent the outcome of a physical simulation. Results are based on models for the material Nd₂Fe₁₄B. Operational conditions may differ. Use these calculations as a reference point when designing systems.

Table 1: Static pull force (force vs gap) - interaction chart
MW 15x3 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	2301 Gs 230.1 mT	2.87 kg / 6.33 lbs 2870.0 g / 28.2 N	medium risk
1 mm	2098 Gs 209.8 mT	2.39 kg / 5.26 lbs 2386.5 g / 23.4 N	medium risk
2 mm	1842 Gs 184.2 mT	1.84 kg / 4.05 lbs 1838.5 g / 18.0 N	low risk
3 mm	1570 Gs 157.0 mT	1.34 kg / 2.95 lbs 1337.0 g / 13.1 N	low risk
5 mm	1084 Gs 108.4 mT	0.64 kg / 1.40 lbs 637.0 g / 6.2 N	low risk
10 mm	410 Gs 41.0 mT	0.09 kg / 0.20 lbs 91.3 g / 0.9 N	low risk
15 mm	178 Gs 17.8 mT	0.02 kg / 0.04 lbs 17.1 g / 0.2 N	low risk
20 mm	89 Gs 8.9 mT	0.00 kg / 0.01 lbs 4.3 g / 0.0 N	low risk
30 mm	31 Gs 3.1 mT	0.00 kg / 0.00 lbs 0.5 g / 0.0 N	low risk
50 mm	7 Gs 0.7 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	low risk

Pulling power decreases drastically per each millimeter of spacing. Note that even a microscopic distance (e.g., contamination, varnish, veneer) strongly reduces the pull force. Magnetic products work optimally during direct contact; air break kills the power. Analyze how quickly the parameters fall, when the magnet does not adhere directly to the steel surface. When planning the arrangement, avoid additional spacers.

Table 2: Slippage force (wall)
MW 15x3 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.57 kg / 1.27 lbs 574.0 g / 5.6 N
1 mm	Stal (~0.2)	0.48 kg / 1.05 lbs 478.0 g / 4.7 N
2 mm	Stal (~0.2)	0.37 kg / 0.81 lbs 368.0 g / 3.6 N
3 mm	Stal (~0.2)	0.27 kg / 0.59 lbs 268.0 g / 2.6 N
5 mm	Stal (~0.2)	0.13 kg / 0.28 lbs 128.0 g / 1.3 N
10 mm	Stal (~0.2)	0.02 kg / 0.04 lbs 18.0 g / 0.2 N
15 mm	Stal (~0.2)	0.00 kg / 0.01 lbs 4.0 g / 0.0 N
20 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N
30 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N

The following data defines the theoretical force required to start the slippage of the magnet vertically on a vertical steel plate (considering typical friction). The holding force varies with the distance between the magnet and the metal.

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MW 15x3 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.86 kg / 1.90 lbs 861.0 g / 8.4 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.57 kg / 1.27 lbs 574.0 g / 5.6 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.29 kg / 0.63 lbs 287.0 g / 2.8 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	1.44 kg / 3.16 lbs 1435.0 g / 14.1 N

When placing a holder on a vertical plane (e.g., a board), it will maintain barely about 20%-30% of its nominal power. Gravitational force and a weak degree of grip cause that holders slip easier than they detach. Want to create a hanger? Remember that the shear force is noticeably lower than the perpendicular breakaway force. On a slippery surface, the magnet will slide down under a much lighter load. Using a rubber coating can effectively improve the result.

Table 4: Material efficiency (substrate influence) - power losses
MW 15x3 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.29 kg / 0.63 lbs 287.0 g / 2.8 N
1 mm	25%	0.72 kg / 1.58 lbs 717.5 g / 7.0 N
2 mm	50%	1.44 kg / 3.16 lbs 1435.0 g / 14.1 N
3 mm	75%	2.15 kg / 4.75 lbs 2152.5 g / 21.1 N
5 mm	100%	2.87 kg / 6.33 lbs 2870.0 g / 28.2 N
10 mm	100%	2.87 kg / 6.33 lbs 2870.0 g / 28.2 N
11 mm	100%	2.87 kg / 6.33 lbs 2870.0 g / 28.2 N
12 mm	100%	2.87 kg / 6.33 lbs 2870.0 g / 28.2 N

A thin sheet cannot focus the full magnetic flux, which weakens actual performance of the magnet. Should you attach a powerful product to a thin surface, the field will pass right through and the holding will be smaller. To squeeze the maximum of this neodymium's potential, you need a suitably thick piece of steel. The material oversaturation causes that on delicate walls (e.g., appliance housings), the product holds weaker. We recommend selecting the steel cross-section according to the table below.

Table 5: Thermal resistance (material behavior) - power drop
MW 15x3 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	2.87 kg / 6.33 lbs 2870.0 g / 28.2 N	OK
40 °C	-2.2%	2.81 kg / 6.19 lbs 2806.9 g / 27.5 N	OK
60 °C	-4.4%	2.74 kg / 6.05 lbs 2743.7 g / 26.9 N
80 °C	-6.6%	2.68 kg / 5.91 lbs 2680.6 g / 26.3 N
100 °C	-28.8%	2.04 kg / 4.51 lbs 2043.4 g / 20.0 N

Classic neodymiums change their properties strength above the temperature limit. Protect against heat – high temperature can permanently demagnetize this product. As the temperature rises, the neodymium's power briefly lowers. Avoid using this magnet in hot environments exceeding its operating temperature limit. Exceeding the critical threshold will cause irreversible degradation of magnetism.

*Engineering note: Temperature resistance depends not only on the material grade, but also on the magnet's shape. Flat magnets (low permeance coefficient) are more susceptible to demagnetization under lower heat stress than long magnets. Red status in the table points to permanent field degradation for this specific geometry.

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MW 15x3 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Sliding Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	5.77 kg / 12.72 lbs 3 869 Gs	0.87 kg / 1.91 lbs 865 g / 8.5 N	N/A
1 mm	5.32 kg / 11.73 lbs 4 419 Gs	0.80 kg / 1.76 lbs 798 g / 7.8 N	4.79 kg / 10.55 lbs ~0 Gs
2 mm	4.80 kg / 10.57 lbs 4 196 Gs	0.72 kg / 1.59 lbs 719 g / 7.1 N	4.32 kg / 9.52 lbs ~0 Gs
3 mm	4.25 kg / 9.36 lbs 3 948 Gs	0.64 kg / 1.40 lbs 637 g / 6.2 N	3.82 kg / 8.42 lbs ~0 Gs
5 mm	3.17 kg / 6.99 lbs 3 412 Gs	0.48 kg / 1.05 lbs 476 g / 4.7 N	2.85 kg / 6.29 lbs ~0 Gs
10 mm	1.28 kg / 2.82 lbs 2 168 Gs	0.19 kg / 0.42 lbs 192 g / 1.9 N	1.15 kg / 2.54 lbs ~0 Gs
20 mm	0.18 kg / 0.40 lbs 821 Gs	0.03 kg / 0.06 lbs 28 g / 0.3 N	0.17 kg / 0.36 lbs ~0 Gs
50 mm	0.00 kg / 0.01 lbs 101 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
60 mm	0.00 kg / 0.00 lbs 62 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
70 mm	0.00 kg / 0.00 lbs 41 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
80 mm	0.00 kg / 0.00 lbs 28 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 20 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 15 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs

Two strong neodymiums attract each other from a wider radius than a magnet and steel combination. Such a system of two magnets generates a stronger field and a wider radius of performance. Want to build a strong closure? Apply two magnets instead of a neodymium and a steel. Be careful that when connecting a pair of magnets, the impact force is huge. The levitation is marginally weaker than the connection force, but still impressive.
*Flux density for N-N configuration is approximately ~0 Gs at the geometric center of the gap (due to field cancellation).
Note: Results demonstrate friction force of two matching magnets (friction ~0.15 for Ni-Ni layer).

Table 7: Safety (HSE) (implants) - precautionary measures
MW 15x3 / 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)	3.0 cm
Payment card	400 Gs (40.0 mT)	1.5 cm
HDD hard drive	600 Gs (60.0 mT)	1.0 cm

A strong magnetic field poses a real danger to electronic devices and pacemakers. These neodymiums generate a flux that prevents correct functioning of digital equipment. Notice: the invisible magnetic field acts through matter and glass. Exceptional care must be exercised by people with cochlear implants and drug dispensers. Also at risk are: mechanical watches, remotes, speakers, and displays. Do not place the magnet near cards, hard drives, or sensitive navigation tools.

Table 8: Dynamics (kinetic energy) - collision effects
MW 15x3 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	27.62 km/h (7.67 m/s)	0.12 J
30 mm	46.91 km/h (13.03 m/s)	0.34 J
50 mm	60.56 km/h (16.82 m/s)	0.56 J
100 mm	85.64 km/h (23.79 m/s)	1.13 J

Neodymium magnets are very brittle – a violent impact against metal can result in shattering. Control the attraction moment – a magnet released freely becomes dangerous. Striking energy can destroy the magnet or dangerous crushing to skin. Hold the magnet firmly during bringing near metal so it doesn't slam with momentum against the steel surface. A collision at high speed almost guarantees destruction of the magnet. Wear eye protection when handling with powerful specimens.

Table 9: Surface protection spec
MW 15x3 / 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 SST (salt spray test) is an industry standard for determining coating lifespan in harsh conditions. Note the thickness of the protective layer.

Table 10: Electrical data (P_c)
MW 15x3 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	4 718 Mx	47.2 µWb
P_c Coefficient	0.29	Low (Flat)

Flux value emitted by the magnet pole. Key data for generator designers and motors. The P_c coefficient defines the magnet's operating point.

Table 11: Physics of underwater searching
MW 15x3 / N38

Environment	Effective steel pull	Effect
Air (land)	2.87 kg	Standard
Water (riverbed)	3.29 kg (+0.42 kg buoyancy gain)	+14.5%

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

In water, the magnet feels stronger thanks to Archimedes' principle. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Vertical hold

*Note: On a vertical surface, the magnet holds only ~20% of its max power.

2. Plate thickness effect

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

3. Heat tolerance

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

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.29

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

Material specification

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

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: 010029-2026

Measurement Calculator

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MP 15x7/3.5x3 / N38 - ring magnet

1.747 ZŁ brutto / pcs

This product is an exceptionally strong rod magnet, composed of durable NdFeB material, which, with dimensions of Ø15x3 mm, guarantees the highest energy density. This specific item boasts high dimensional repeatability and professional build quality, making it a perfect solution for professional engineers and designers. As a cylindrical magnet with significant force (approx. 2.87 kg), this product is in stock from our warehouse in Poland, ensuring rapid order fulfillment. Furthermore, its Ni-Cu-Ni coating effectively protects it against corrosion in typical operating conditions, ensuring an aesthetic appearance and durability for years.

This model is perfect for building generators, advanced sensors, and efficient filters, where maximum induction on a small surface counts. Thanks to the pull force of 28.14 N with a weight of only 3.98 g, this rod is indispensable in miniature devices and wherever low weight is crucial.

Since our magnets have a very precise dimensions, the best method 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 industry, anaerobic resins are used, which are safe for nickel and fill the gap, guaranteeing high repeatability of the connection.

Grade N38 is the most frequently chosen standard for professional neodymium magnets, offering a great economic balance and operational stability. If you need the strongest magnets in the same volume (Ø15x3), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our store.

The presented product is a neodymium magnet with precisely defined parameters: diameter 15 mm and height 3 mm. The value of 28.14 N means that the magnet is capable of holding a weight many times exceeding its own mass of 3.98 g. The product has a [NiCuNi] coating, which secures it 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 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.

Pros and cons of rare earth magnets.

Advantages

Besides their high retention, neodymium magnets are valued for these benefits:

They do not lose magnetism, even during around ten years – the reduction in strength is only ~1% (according to tests),
They have excellent resistance to magnetism drop due to external magnetic sources,
The use of an refined coating of noble metals (nickel, gold, silver) causes the element to have aesthetics,
The surface of neodymium magnets generates a intense magnetic field – this is one of their assets,
Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can work (depending on the form) even at a temperature of 230°C or more...
Thanks to modularity in forming and the capacity to modify to complex applications,
Universal use in innovative solutions – they are used in computer drives, brushless drives, medical equipment, also other advanced devices.
Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Weaknesses

Disadvantages of neodymium magnets:

To avoid cracks upon strong impacts, we suggest using special steel holders. Such a solution protects the magnet and simultaneously improves its durability.
When exposed to high temperature, neodymium magnets suffer a drop in strength. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
They oxidize in a humid environment. For use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
We recommend cover - magnetic holder, due to difficulties in realizing nuts inside the magnet and complex shapes.
Potential hazard related to microscopic parts of magnets can be dangerous, in case of ingestion, which gains importance in the context of child health protection. Additionally, small elements of these magnets are able to be problematic in diagnostics medical after entering the body.
With mass production the cost of neodymium magnets is a challenge,

Pull force analysis

Maximum magnetic pulling force – what contributes to it?

Holding force of 2.87 kg is a result of laboratory testing conducted under the following configuration:

using a plate made of low-carbon steel, functioning as a magnetic yoke
possessing a thickness of minimum 10 mm to avoid saturation
characterized by smoothness
under conditions of gap-free contact (metal-to-metal)
under perpendicular force direction (90-degree angle)
in neutral thermal conditions

Magnet lifting force in use – key factors

Holding efficiency is affected by specific conditions, mainly (from priority):

Clearance – existence of foreign body (paint, tape, air) acts as an insulator, which reduces capacity rapidly (even by 50% at 0.5 mm).
Pull-off angle – remember that the magnet has greatest strength perpendicularly. Under sliding down, the holding force drops significantly, often to levels of 20-30% of the maximum value.
Element thickness – for full efficiency, the steel must be adequately massive. Thin sheet limits the attraction force (the magnet "punches through" it).
Steel type – mild steel attracts best. Higher carbon content lower magnetic permeability and lifting capacity.
Smoothness – full contact is possible only on polished steel. Rough texture create air cushions, reducing force.
Operating temperature – NdFeB sinters have a sensitivity to temperature. At higher temperatures they are weaker, and at low temperatures gain strength (up to a certain limit).

Lifting capacity testing was performed on plates with a smooth surface of suitable thickness, under a perpendicular pulling force, whereas under parallel forces the holding force is lower. Additionally, even a small distance between the magnet’s surface and the plate reduces the lifting capacity.

Warnings

Maximum temperature

Do not overheat. Neodymium magnets are sensitive to heat. If you need resistance above 80°C, ask us about special high-temperature series (H, SH, UH).

Conscious usage

Handle magnets consciously. Their huge power can shock even experienced users. Plan your moves and respect their force.

Fragile material

Neodymium magnets are sintered ceramics, which means they are fragile like glass. Impact of two magnets will cause them breaking into small pieces.

Magnetic interference

Navigation devices and smartphones are highly susceptible to magnetic fields. Close proximity with a strong magnet can decalibrate the sensors in your phone.

Pacemakers

People with a heart stimulator should keep an absolute distance from magnets. The magnetism can stop the functioning of the implant.

Serious injuries

Big blocks can smash fingers in a fraction of a second. Do not put your hand betwixt two attracting surfaces.

Warning for allergy sufferers

Some people suffer from a hypersensitivity to nickel, which is the standard coating for NdFeB magnets. Prolonged contact might lead to a rash. We suggest wear protective gloves.

Protect data

Very strong magnetic fields can erase data on credit cards, hard drives, and storage devices. Stay away of at least 10 cm.

Mechanical processing

Powder generated during grinding of magnets is combustible. Avoid drilling into magnets without proper cooling and knowledge.

Choking Hazard

NdFeB magnets are not toys. Eating multiple magnets may result in them attracting across intestines, which constitutes a critical condition and necessitates immediate surgery.

Warning! Want to know more? Read our article: Are neodymium magnets dangerous?

MW 15x3 / N38 - cylindrical magnet

Technical of the product - MW 15x3 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical simulation of the magnet - technical parameters

Table 1: Static pull force (force vs gap) - interaction chart MW 15x3 / N38

Table 2: Slippage force (wall) MW 15x3 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces MW 15x3 / N38

Table 4: Material efficiency (substrate influence) - power losses MW 15x3 / N38

Table 5: Thermal resistance (material behavior) - power drop MW 15x3 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system MW 15x3 / N38

Table 7: Safety (HSE) (implants) - precautionary measures MW 15x3 / N38

Table 8: Dynamics (kinetic energy) - collision effects MW 15x3 / N38

Table 9: Surface protection spec MW 15x3 / N38

Table 10: Electrical data (Pc) MW 15x3 / N38

Table 11: Physics of underwater searching MW 15x3 / N38

1. Vertical hold

2. Plate thickness effect

3. Heat tolerance

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

Material specification

Ecology and recycling (GPSR)

Pulling force

Magnetic Field

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MP 15x7/3.5x3 / N38 - ring magnet

Pros and cons of rare earth magnets.

Advantages

Weaknesses

Pull force analysis

Maximum magnetic pulling force – what contributes to it?

Magnet lifting force in use – key factors

Warnings

Maximum temperature

Conscious usage

Fragile material

Magnetic interference

Pacemakers

Serious injuries

Warning for allergy sufferers

Protect data

Mechanical processing

Choking Hazard

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs gap) - interaction chart
MW 15x3 / N38

Table 2: Slippage force (wall)
MW 15x3 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MW 15x3 / N38

Table 4: Material efficiency (substrate influence) - power losses
MW 15x3 / N38

Table 5: Thermal resistance (material behavior) - power drop
MW 15x3 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MW 15x3 / N38

Table 7: Safety (HSE) (implants) - precautionary measures
MW 15x3 / N38

Table 8: Dynamics (kinetic energy) - collision effects
MW 15x3 / N38

Table 9: Surface protection spec
MW 15x3 / N38

Table 10: Electrical data (P_c)
MW 15x3 / N38

Table 11: Physics of underwater searching
MW 15x3 / N38