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MW 12x4 / N52 - cylindrical magnet

Name: Dhit sp. z o.o.
Address: Kościuszki 6A, Ożarów Mazowiecki, mazowieckie, 05-850, PL
Telephone: +48 22 499 98 98
Price range: 1-6500 PLN
Rating: 5

cylindrical magnet

Catalog no 010500

GTIN/EAN: 5906301814962

5.00

Diameter Ø

12 mm [±0,1 mm]

Height

4 mm [±0,1 mm]

Weight

3.39 g

Magnetization Direction

↑ axial

Load capacity

4.68 kg / 45.89 N

Magnetic Induction

400.45 mT / 4005 Gs

Coating

[NiCuNi] Nickel

view parameters »

2.18 ZŁ with VAT / pcs + price for transport

1.770 ZŁ net + 23% VAT / pcs

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Physical properties - MW 12x4 / N52 - cylindrical magnet

Specification / characteristics - MW 12x4 / N52 - cylindrical magnet

properties

properties	values
Cat. no.	010500
GTIN/EAN	5906301814962
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	12 mm [±0,1 mm]
Height	4 mm [±0,1 mm]
Weight	3.39 g
Magnetization Direction	↑ axial
Load capacity ~ ?	4.68 kg / 45.89 N
Magnetic Induction ~ ?	400.45 mT / 4005 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N52

Specification / characteristics MW 12x4 / N52 - cylindrical magnet

properties	values	units
remenance Br [min. - max.] ?	14.2-14.7	kGs
remenance Br [min. - max.] ?	1420-1470	mT
coercivity bHc ?	10.8-12.5	kOe
coercivity bHc ?	860-995	kA/m
actual internal force iHc	≥ 12	kOe
actual internal force iHc	≥ 955	kA/m
energy density [min. - max.] ?	48-53	BH max MGOe
energy density [min. - max.] ?	380-422	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

Engineering analysis of the magnet - data

These values constitute the outcome of a physical analysis. Results rely on algorithms for the material Nd₂Fe₁₄B. Operational parameters might slightly differ. Treat these data as a preliminary roadmap when designing systems.

Table 1: Static pull force (force vs distance) - characteristics
MW 12x4 / N52

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	4003 Gs 400.3 mT	4.68 kg / 10.32 pounds 4680.0 g / 45.9 N	strong
1 mm	3438 Gs 343.8 mT	3.45 kg / 7.61 pounds 3451.9 g / 33.9 N	strong
2 mm	2824 Gs 282.4 mT	2.33 kg / 5.14 pounds 2329.8 g / 22.9 N	strong
3 mm	2255 Gs 225.5 mT	1.48 kg / 3.27 pounds 1484.8 g / 14.6 N	safe
5 mm	1386 Gs 138.6 mT	0.56 kg / 1.24 pounds 561.3 g / 5.5 N	safe
10 mm	445 Gs 44.5 mT	0.06 kg / 0.13 pounds 58.0 g / 0.6 N	safe
15 mm	181 Gs 18.1 mT	0.01 kg / 0.02 pounds 9.6 g / 0.1 N	safe
20 mm	89 Gs 8.9 mT	0.00 kg / 0.01 pounds 2.3 g / 0.0 N	safe
30 mm	30 Gs 3.0 mT	0.00 kg / 0.00 pounds 0.3 g / 0.0 N	safe
50 mm	7 Gs 0.7 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	safe

Pulling power weakens significantly with every mm of gap. Note that even the smallest gap (e.g., dirt, varnish, rust) significantly weakens the grip. Magnetic products operate optimally in perfect adhesion; air break drastically cuts the power. See how rapidly the parameters plummet, when the magnet does not touch directly to the steel surface. When designing the arrangement, discard unnecessary gaps.

Table 2: Slippage hold (wall)
MW 12x4 / N52

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.94 kg / 2.06 pounds 936.0 g / 9.2 N
1 mm	Stal (~0.2)	0.69 kg / 1.52 pounds 690.0 g / 6.8 N
2 mm	Stal (~0.2)	0.47 kg / 1.03 pounds 466.0 g / 4.6 N
3 mm	Stal (~0.2)	0.30 kg / 0.65 pounds 296.0 g / 2.9 N
5 mm	Stal (~0.2)	0.11 kg / 0.25 pounds 112.0 g / 1.1 N
10 mm	Stal (~0.2)	0.01 kg / 0.03 pounds 12.0 g / 0.1 N
15 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 2.0 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

The following data presents the approximate shear load required to initiate the shifting of the magnet down along a vertical metal surface (considering standard friction). This value is a function of the separation distance between the magnet and the metal.

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 12x4 / N52

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	1.40 kg / 3.10 pounds 1404.0 g / 13.8 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.94 kg / 2.06 pounds 936.0 g / 9.2 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.47 kg / 1.03 pounds 468.0 g / 4.6 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	2.34 kg / 5.16 pounds 2340.0 g / 23.0 N

When placing a holder on a vertical plane (e.g., a board), it will only hold barely approx. 20%-30% of its maximum pull force. Gravitational force and a low friction coefficient influence the fact that products slip faster than they detach. Planning a wall mount? Note that the sliding force is much weaker than the perpendicular breakaway force. On a slippery surface, the element will slide down under a significantly smaller weight. Utilizing a rubberized layer can effectively improve the result.

Table 4: Material efficiency (saturation) - power losses
MW 12x4 / N52

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.47 kg / 1.03 pounds 468.0 g / 4.6 N
1 mm	25%	1.17 kg / 2.58 pounds 1170.0 g / 11.5 N
2 mm	50%	2.34 kg / 5.16 pounds 2340.0 g / 23.0 N
3 mm	75%	3.51 kg / 7.74 pounds 3510.0 g / 34.4 N
5 mm	100%	4.68 kg / 10.32 pounds 4680.0 g / 45.9 N
10 mm	100%	4.68 kg / 10.32 pounds 4680.0 g / 45.9 N
11 mm	100%	4.68 kg / 10.32 pounds 4680.0 g / 45.9 N
12 mm	100%	4.68 kg / 10.32 pounds 4680.0 g / 45.9 N

A thin metal plate is not enough to conduct the full magnetic flux, which squanders power of the holder. If you attach a powerful product to a thin surface, the field will penetrate right through and the pull force will drop sharply. To squeeze 100% of this neodymium's potential, you need a suitably thick backing of metal. The material oversaturation causes that on sheet metal structures (e.g., car bodies), the product works worse. We advise picking the steel thickness from these parameters.

Table 5: Thermal resistance (material behavior) - power drop
MW 12x4 / N52

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	4.68 kg / 10.32 pounds 4680.0 g / 45.9 N	OK
40 °C	-2.2%	4.58 kg / 10.09 pounds 4577.0 g / 44.9 N	OK
60 °C	-4.4%	4.47 kg / 9.86 pounds 4474.1 g / 43.9 N
80 °C	-6.6%	4.37 kg / 9.64 pounds 4371.1 g / 42.9 N
100 °C	-28.8%	3.33 kg / 7.35 pounds 3332.2 g / 32.7 N

Classic neodymiums irreversibly lose parameters after exceeding the maximum temperature. Protect against heat – heat can irreversibly destroy this magnet. As the temperature rises, the magnet's capacity briefly drops. Refrain from using this magnet near heat sources exceeding its working range. Ignoring the limit will lead to irreversible degradation of magnetism.

*Important note: Heat tolerance is determined by both grade, and the Permeance Coefficient Pc. Flat magnets (pancake types) may lose charge permanently at lower temperatures than taller cylinders. Red status in the table points to permanent field degradation for this specific geometry.

Table 6: Magnet-Magnet interaction (attraction) - field range
MW 12x4 / N52

Gap (mm)	Attraction (kg/lbs) (N-S)	Sliding Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	11.17 kg / 24.63 pounds 5 771 Gs	1.68 kg / 3.69 pounds 1676 g / 16.4 N	N/A
1 mm	9.73 kg / 21.44 pounds 7 470 Gs	1.46 kg / 3.22 pounds 1459 g / 14.3 N	8.75 kg / 19.30 pounds ~0 Gs
2 mm	8.24 kg / 18.16 pounds 6 875 Gs	1.24 kg / 2.72 pounds 1236 g / 12.1 N	7.42 kg / 16.35 pounds ~0 Gs
3 mm	6.83 kg / 15.06 pounds 6 260 Gs	1.02 kg / 2.26 pounds 1024 g / 10.1 N	6.15 kg / 13.55 pounds ~0 Gs
5 mm	4.46 kg / 9.84 pounds 5 060 Gs	0.67 kg / 1.48 pounds 670 g / 6.6 N	4.02 kg / 8.86 pounds ~0 Gs
10 mm	1.34 kg / 2.95 pounds 2 772 Gs	0.20 kg / 0.44 pounds 201 g / 2.0 N	1.21 kg / 2.66 pounds ~0 Gs
20 mm	0.14 kg / 0.30 pounds 891 Gs	0.02 kg / 0.05 pounds 21 g / 0.2 N	0.12 kg / 0.27 pounds ~0 Gs
50 mm	0.00 kg / 0.00 pounds 99 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 61 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 40 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 27 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 20 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 15 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 wider radius than a neodymium and metal combination. The setup of magnet-to-magnet generates a stronger field and a wider radius of operation. Designing a strong closure? Use a pair of magnets instead of one magnet and a steel. Be careful that when bringing together two magnets, the impact force is extreme. The levitation is a bit weaker than the connection force, but still impressive.
*Flux density between like poles reaches ~0 Gs at the geometric center of the gap (caused by magnetic field nullification).
Note: Figures refer to shear force of a pair of matching neodymium magnets (friction ~0.15 for Ni-Ni coating).

Table 7: Protective zones (electronics) - precautionary measures
MW 12x4 / N52

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	6.0 cm
Hearing aid	10 Gs (1.0 mT)	4.5 cm
Timepiece	20 Gs (2.0 mT)	3.5 cm
Phone / Smartphone	40 Gs (4.0 mT)	3.0 cm
Remote	50 Gs (5.0 mT)	2.5 cm
Payment card	400 Gs (40.0 mT)	1.5 cm
HDD hard drive	600 Gs (60.0 mT)	1.0 cm

Powerful magnet radiation poses a real danger to electronic devices as well as medical implants. These magnets generate a field that prevents correct functioning 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. Also at risk are: mechanical watches, remotes, speakers, and screens. Avoid contact with magnetic cards, hard drives, or precise measuring instruments.

Table 8: Dynamics (cracking risk) - collision effects
MW 12x4 / N52

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	37.76 km/h (10.49 m/s)	0.19 J
30 mm	64.91 km/h (18.03 m/s)	0.55 J
50 mm	83.79 km/h (23.27 m/s)	0.92 J
100 mm	118.50 km/h (32.92 m/s)	1.84 J

NdFeB products are very brittle – a collision with steel can result in shattering. Pay attention to connection velocity – a magnet released freely becomes dangerous. Striking energy can cause material chips or dangerous crushing to fingers. Be sure to control the product during installation so it doesn't hit with great force against the steel surface. A contact at a velocity of dozens of km/h almost guarantees destruction of the neodymium. Wear eye protection when working with powerful specimens.

Table 9: Surface protection spec
MW 12x4 / N52

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: Electrical data (Flux)
MW 12x4 / N52

Parameter	Value	SI Unit / Description
Magnetic Flux	4 794 Mx	47.9 µWb
P_c Coefficient	0.44	Low (Flat)

Flux value emitted by the pole surface. Essential parameter for generator designers as well as sensors. The P_c coefficient defines the working geometry.

Table 11: Hydrostatics and buoyancy
MW 12x4 / N52

Environment	Effective steel pull	Effect
Air (land)	4.68 kg	Standard
Water (riverbed)	5.36 kg (+0.68 kg buoyancy gain)	+14.5%

Rust risk: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!

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

1. Vertical hold

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

2. Steel saturation

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

3. Heat tolerance

*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) = 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

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: 010500-2026

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MW 12x1.5 / N38 - cylindrical magnet

0.431 ZŁ brutto / pcs

The presented product is an exceptionally strong cylinder magnet, produced from modern NdFeB material, which, with dimensions of Ø12x4 mm, guarantees optimal power. The MW 12x4 / N52 model features high dimensional repeatability and professional build quality, making it an excellent solution for the most demanding engineers and designers. As a cylindrical magnet with impressive force (approx. 4.68 kg), this product is available off-the-shelf from our European logistics center, ensuring lightning-fast order fulfillment. Moreover, its triple-layer Ni-Cu-Ni coating shields it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.

This model is created for building electric motors, advanced sensors, and efficient filters, where maximum induction on a small surface counts. Thanks to the high power of 45.89 N with a weight of only 3.39 g, this cylindrical magnet is indispensable in miniature devices and wherever every gram matters.

Since our magnets have a very precise dimensions, the recommended way is to glue them into holes with a slightly larger diameter (e.g., 12.1 mm) using two-component epoxy glues. To ensure stability 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 suitable for the majority of applications in automation and machine building, where excessive miniaturization with maximum force is not required. If you need the strongest magnets in the same volume (Ø12x4), 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 Ø12x4 mm, which, at a weight of 3.39 g, makes it an element with high magnetic energy density. The value of 45.89 N means that the magnet is capable of holding a weight many times exceeding its own mass of 3.39 g. The product has a [NiCuNi] coating, which protects the surface 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 12 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.

Strengths

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

Their power remains stable, and after approximately ten years it drops only by ~1% (theoretically),
They do not lose their magnetic properties even under external field action,
The use of an refined coating of noble metals (nickel, gold, silver) causes the element to have aesthetics,
Magnets are characterized by impressive magnetic induction on the working surface,
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 the potential of flexible forming and customization to custom requirements, magnetic components can be modeled in a broad palette of shapes and sizes, which makes them more universal,
Significant place in innovative solutions – they are commonly used in magnetic memories, electromotive mechanisms, medical equipment, and complex engineering applications.
Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Cons

Cons of neodymium magnets and proposals for their use:

They are fragile upon heavy 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 force 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 very resistant to heat
They oxidize in a humid environment. For use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
Due to limitations in producing threads and complex forms in magnets, we propose using cover - magnetic mechanism.
Potential hazard to health – tiny shards of magnets can be dangerous, when accidentally swallowed, which gains importance in the context of child health protection. Additionally, small components of these devices are able to be problematic in diagnostics medical when they are in the body.
Due to neodymium price, their price is relatively high,

Pull force analysis

Maximum magnetic pulling force – what it depends on?

Holding force of 4.68 kg is a measurement result performed under the following configuration:

with the application of a yoke made of special test steel, ensuring maximum field concentration
possessing a thickness of minimum 10 mm to ensure full flux closure
with an polished touching surface
under conditions of ideal adhesion (surface-to-surface)
for force acting at a right angle (in the magnet axis)
at room temperature

Determinants of lifting force in real conditions

It is worth knowing that the application force will differ subject to elements below, in order of importance:

Clearance – existence of foreign body (rust, tape, air) acts as an insulator, which reduces power steeply (even by 50% at 0.5 mm).
Load vector – maximum parameter is obtained only during perpendicular pulling. The force required to slide of the magnet along the surface is standardly several times lower (approx. 1/5 of the lifting capacity).
Substrate thickness – for full efficiency, the steel must be adequately massive. Paper-thin metal limits the attraction force (the magnet "punches through" it).
Steel grade – ideal substrate is pure iron steel. Cast iron may have worse magnetic properties.
Surface quality – the more even the surface, the larger the contact zone and higher the lifting capacity. Roughness creates an air distance.
Thermal environment – heating the magnet causes a temporary drop of induction. It is worth remembering the thermal limit for a given model.

Holding force was checked on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, in contrast under shearing force the holding force is lower. Moreover, even a slight gap between the magnet’s surface and the plate reduces the holding force.

Precautions when working with NdFeB magnets

This is not a toy

NdFeB magnets are not intended for children. Accidental ingestion of a few magnets can lead to them connecting inside the digestive tract, which constitutes a critical condition and requires urgent medical intervention.

Precision electronics

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

Nickel coating and allergies

A percentage of the population suffer from a contact allergy to Ni, which is the typical protective layer for neodymium magnets. Frequent touching can result in skin redness. We suggest wear safety gloves.

Medical implants

Medical warning: Neodymium magnets can turn off heart devices and defibrillators. Stay away if you have electronic implants.

Magnetic media

Device Safety: Strong magnets can damage data carriers and sensitive devices (heart implants, medical aids, timepieces).

Risk of cracking

Despite the nickel coating, the material is delicate and not impact-resistant. Avoid impacts, as the magnet may crumble into hazardous fragments.

Bone fractures

Large magnets can crush fingers in a fraction of a second. Under no circumstances put your hand betwixt two strong magnets.

Power loss in heat

Standard neodymium magnets (N-type) undergo demagnetization when the temperature goes above 80°C. This process is irreversible.

Safe operation

Handle magnets consciously. Their immense force can surprise even professionals. Be vigilant and respect their power.

Flammability

Dust generated during cutting of magnets is flammable. Avoid drilling into magnets unless you are an expert.

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

MW 12x4 / N52 - cylindrical magnet

Physical properties - MW 12x4 / N52 - cylindrical magnet

Magnetic properties of material N52

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering analysis of the magnet - data

Table 1: Static pull force (force vs distance) - characteristics MW 12x4 / N52

Table 2: Slippage hold (wall) MW 12x4 / N52

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces MW 12x4 / N52

Table 4: Material efficiency (saturation) - power losses MW 12x4 / N52

Table 5: Thermal resistance (material behavior) - power drop MW 12x4 / N52

Table 6: Magnet-Magnet interaction (attraction) - field range MW 12x4 / N52

Table 7: Protective zones (electronics) - precautionary measures MW 12x4 / N52

Table 8: Dynamics (cracking risk) - collision effects MW 12x4 / N52

Table 9: Surface protection spec MW 12x4 / N52

Table 10: Electrical data (Flux) MW 12x4 / N52

Table 11: Hydrostatics and buoyancy MW 12x4 / N52

1. Vertical hold

2. Steel saturation

3. Heat tolerance

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

Material specification

Ecology and recycling (GPSR)

Pulling force

Field Strength

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MP 25x7.5/4.5x5 / N38 - ring magnet

UMGGW 43x6 [M4] GW / N38 - magnetic holder rubber internal thread

MW 12x1.5 / N38 - cylindrical magnet

Pros and cons of rare earth magnets.

Strengths

Cons

Pull force analysis

Maximum magnetic pulling force – what it depends on?

Determinants of lifting force in real conditions

Precautions when working with NdFeB magnets

This is not a toy

Precision electronics

Nickel coating and allergies

Medical implants

Magnetic media

Risk of cracking

Bone fractures

Power loss in heat

Safe operation

Flammability

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs distance) - characteristics
MW 12x4 / N52

Table 2: Slippage hold (wall)
MW 12x4 / N52

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 12x4 / N52

Table 4: Material efficiency (saturation) - power losses
MW 12x4 / N52

Table 5: Thermal resistance (material behavior) - power drop
MW 12x4 / N52

Table 6: Magnet-Magnet interaction (attraction) - field range
MW 12x4 / N52

Table 7: Protective zones (electronics) - precautionary measures
MW 12x4 / N52

Table 8: Dynamics (cracking risk) - collision effects
MW 12x4 / N52

Table 9: Surface protection spec
MW 12x4 / N52

Table 10: Electrical data (Flux)
MW 12x4 / N52

Table 11: Hydrostatics and buoyancy
MW 12x4 / N52