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MW 12x4 / N38 - 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 010019

GTIN/EAN: 5906301810186

5.00

Diameter Ø

12 mm [±0,1 mm]

Height

4 mm [±0,1 mm]

Weight

3.39 g

Magnetization Direction

↑ axial

Load capacity

3.45 kg / 33.81 N

Magnetic Induction

343.64 mT / 3436 Gs

Coating

[NiCuNi] Nickel

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1.353 ZŁ with VAT / pcs + price for transport

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Technical details - MW 12x4 / N38 - cylindrical magnet

Specification / characteristics - MW 12x4 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010019
GTIN/EAN	5906301810186
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 ~ ?	3.45 kg / 33.81 N
Magnetic Induction ~ ?	343.64 mT / 3436 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 12x4 / 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

Engineering analysis of the assembly - report

The following data are the result of a physical simulation. Results rely on algorithms for the class Nd₂Fe₁₄B. Operational performance may deviate from the simulation results. Use these data as a reference point during assembly planning.

Table 1: Static force (force vs distance) - interaction chart
MW 12x4 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	3435 Gs 343.5 mT	3.45 kg / 7.61 lbs 3450.0 g / 33.8 N	medium risk
1 mm	2950 Gs 295.0 mT	2.54 kg / 5.61 lbs 2544.7 g / 25.0 N	medium risk
2 mm	2423 Gs 242.3 mT	1.72 kg / 3.79 lbs 1717.5 g / 16.8 N	weak grip
3 mm	1935 Gs 193.5 mT	1.09 kg / 2.41 lbs 1094.6 g / 10.7 N	weak grip
5 mm	1190 Gs 119.0 mT	0.41 kg / 0.91 lbs 413.8 g / 4.1 N	weak grip
10 mm	382 Gs 38.2 mT	0.04 kg / 0.09 lbs 42.7 g / 0.4 N	weak grip
15 mm	156 Gs 15.6 mT	0.01 kg / 0.02 lbs 7.1 g / 0.1 N	weak grip
20 mm	76 Gs 7.6 mT	0.00 kg / 0.00 lbs 1.7 g / 0.0 N	weak grip
30 mm	26 Gs 2.6 mT	0.00 kg / 0.00 lbs 0.2 g / 0.0 N	weak grip
50 mm	6 Gs 0.6 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	weak grip

Grip strength decreases drastically with every mm of gap. Note that every additional insulation layer (e.g., contamination, varnish, veneer) significantly reduces the pull force. Magnetic products work strongest at the point of direct contact; gap nullifies the force. Observe how rapidly the parameters plummet, when the product does not adhere flatly to the metal substrate. When designing the assembly, avoid redundant distances.

Table 2: Shear load (vertical surface)
MW 12x4 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.69 kg / 1.52 lbs 690.0 g / 6.8 N
1 mm	Stal (~0.2)	0.51 kg / 1.12 lbs 508.0 g / 5.0 N
2 mm	Stal (~0.2)	0.34 kg / 0.76 lbs 344.0 g / 3.4 N
3 mm	Stal (~0.2)	0.22 kg / 0.48 lbs 218.0 g / 2.1 N
5 mm	Stal (~0.2)	0.08 kg / 0.18 lbs 82.0 g / 0.8 N
10 mm	Stal (~0.2)	0.01 kg / 0.02 lbs 8.0 g / 0.1 N
15 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 2.0 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 table below indicates the theoretical shear load required to cause the downward movement of the magnet downwards against a vertical steel wall (considering typical friction). This parameter varies with the distance between the magnet and the surface.

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 12x4 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	1.04 kg / 2.28 lbs 1035.0 g / 10.2 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.69 kg / 1.52 lbs 690.0 g / 6.8 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.35 kg / 0.76 lbs 345.0 g / 3.4 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	1.73 kg / 3.80 lbs 1725.0 g / 16.9 N

When placing a magnet on a upright wall (e.g., a board), it you can count on just about 1/5 of nominal attraction strength. Gravity and a low friction coefficient cause that products slip faster than they pop off the substrate. Designing a hanger? Remember that the shear force is much weaker than the maximum static pull force. On a slippery surface, the holder will slide down under a much lighter cargo. Utilizing a rubberized pad can drastically raise the stability.

Table 4: Material efficiency (substrate influence) - power losses
MW 12x4 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.35 kg / 0.76 lbs 345.0 g / 3.4 N
1 mm	25%	0.86 kg / 1.90 lbs 862.5 g / 8.5 N
2 mm	50%	1.73 kg / 3.80 lbs 1725.0 g / 16.9 N
3 mm	75%	2.59 kg / 5.70 lbs 2587.5 g / 25.4 N
5 mm	100%	3.45 kg / 7.61 lbs 3450.0 g / 33.8 N
10 mm	100%	3.45 kg / 7.61 lbs 3450.0 g / 33.8 N
11 mm	100%	3.45 kg / 7.61 lbs 3450.0 g / 33.8 N
12 mm	100%	3.45 kg / 7.61 lbs 3450.0 g / 33.8 N

A thin metal plate is not enough to take in the entire magnetic field, which squanders power of the holder. Should you attach a powerful product to a thin surface, the magnetism will pass right through and the pull force will drop sharply. To utilize full efficiency of this neodymium's potential, you need a suitably thick element of steel. The saturation effect causes that on delicate walls (e.g., car bodies), the magnet holds weaker. We recommend selecting the steel thickness based on the following data.

Table 5: Thermal resistance (stability) - thermal limit
MW 12x4 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	3.45 kg / 7.61 lbs 3450.0 g / 33.8 N	OK
40 °C	-2.2%	3.37 kg / 7.44 lbs 3374.1 g / 33.1 N	OK
60 °C	-4.4%	3.30 kg / 7.27 lbs 3298.2 g / 32.4 N
80 °C	-6.6%	3.22 kg / 7.10 lbs 3222.3 g / 31.6 N
100 °C	-28.8%	2.46 kg / 5.42 lbs 2456.4 g / 24.1 N

Standard neodymium magnets change their properties strength above the temperature limit. Watch out for overheating – excessive heat can irreversibly damage this magnet. With increasing heat, the neodymium's force temporarily lowers. Avoid using this magnet in hot environments higher than its operating temperature limit. Exceeding the critical threshold will cause destruction of magnetic properties.

*Engineering note: Thermal stability is determined by both grade, as well as the dimension ratios. Low-profile magnets (pancake types) may lose charge permanently sooner than taller cylinders. Warning indicator in the table signals a risk of irreversible loss for this specific geometry.

Table 6: Magnet-Magnet interaction (repulsion) - field collision
MW 12x4 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Sliding Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	8.23 kg / 18.13 lbs 4 952 Gs	1.23 kg / 2.72 lbs 1234 g / 12.1 N	N/A
1 mm	7.16 kg / 15.79 lbs 6 410 Gs	1.07 kg / 2.37 lbs 1074 g / 10.5 N	6.45 kg / 14.21 lbs ~0 Gs
2 mm	6.07 kg / 13.38 lbs 5 900 Gs	0.91 kg / 2.01 lbs 910 g / 8.9 N	5.46 kg / 12.04 lbs ~0 Gs
3 mm	5.03 kg / 11.09 lbs 5 372 Gs	0.75 kg / 1.66 lbs 754 g / 7.4 N	4.53 kg / 9.98 lbs ~0 Gs
5 mm	3.29 kg / 7.25 lbs 4 342 Gs	0.49 kg / 1.09 lbs 493 g / 4.8 N	2.96 kg / 6.52 lbs ~0 Gs
10 mm	0.99 kg / 2.18 lbs 2 379 Gs	0.15 kg / 0.33 lbs 148 g / 1.5 N	0.89 kg / 1.96 lbs ~0 Gs
20 mm	0.10 kg / 0.22 lbs 764 Gs	0.02 kg / 0.03 lbs 15 g / 0.1 N	0.09 kg / 0.20 lbs ~0 Gs
50 mm	0.00 kg / 0.00 lbs 85 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 52 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 34 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 23 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 17 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 12 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs

Two magnetic products interact from a wider radius than a magnet and sheet combination. Such a system of two magnets creates a more powerful interaction and a further horizon of action. Planning to create a powerful holder? Utilize two neodymiums instead of a neodymium and a steel. Exercise caution that when bringing together two magnets, the pinch force is huge. The levitation is a bit weaker than the attraction, but still large.
*The magnetic induction for N-N configuration reaches ~0 Gs at the midpoint between the magnets (resulting from vector opposition).
Note: Estimates show shear force of two identical neodymium magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Protective zones (electronics) - warnings
MW 12x4 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	5.5 cm
Hearing aid	10 Gs (1.0 mT)	4.5 cm
Mechanical watch	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)	1.0 cm
HDD hard drive	600 Gs (60.0 mT)	1.0 cm

Extremely neodym field is a real danger to electronic devices and pacemakers. These NdFeB products generate a flux that prevents correct functioning of digital equipment. Remember: the invisible magnetic field penetrates the body and glass. Increased vigilance must be taken by people with hearing aids and drug dispensers. The risk also applies to: mechanical watches, car keys, speakers, and displays. Do not place the magnet near cards, HDD media, or precise measuring instruments.

Table 8: Impact energy (cracking risk) - warning
MW 12x4 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	32.42 km/h (9.01 m/s)	0.14 J
30 mm	55.73 km/h (15.48 m/s)	0.41 J
50 mm	71.94 km/h (19.98 m/s)	0.68 J
100 mm	101.74 km/h (28.26 m/s)	1.35 J

Magnetic elements are delicate – a collision with steel causes immediate chipping. Pay attention to connection velocity – a neodymium left loose becomes dangerous. Impact energy can cause material chips or dangerous crushing to skin. Hold the magnet firmly during installation 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. Use safety goggles when working with powerful specimens.

Table 9: Anti-corrosion coating durability
MW 12x4 / N38

Technical parameter	Value / Description
Coating type	[NiCuNi] Nickel
Layer structure	Nickel - Copper - Nickel
Layer thickness	10-20 µm
Salt spray test (SST) ?	24 h
Recommended environment	Indoors only (dry)

Neodymium magnets are highly susceptible to corrosion without proper protection. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Construction data (P_c)
MW 12x4 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	4 114 Mx	41.1 µWb
P_c Coefficient	0.44	Low (Flat)

Flux value passing through the magnet pole. Essential parameter for generator designers and motors. P_c value defines the magnet's operating point.

Table 11: Hydrostatics and buoyancy
MW 12x4 / N38

Environment	Effective steel pull	Effect
Air (land)	3.45 kg	Standard
Water (riverbed)	3.95 kg (+0.50 kg buoyancy gain)	+14.5%

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

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

*Caution: On a vertical wall, the magnet retains merely ~20% of its nominal pull.

2. Plate thickness effect

*Thin steel (e.g. computer case) significantly weakens the holding force.

3. Heat tolerance

*For standard magnets, 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.

Engineering data and GPSR

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: 010019-2026

Measurement Calculator

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Kilograms (kg)

Force (N)

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This product is an exceptionally strong cylindrical magnet, composed of durable NdFeB material, which, with dimensions of Ø12x4 mm, guarantees the highest energy density. The MW 12x4 / N38 component is characterized by an accuracy of ±0.1mm and industrial build quality, making it an excellent solution for the most demanding engineers and designers. As a magnetic rod with impressive force (approx. 3.45 kg), this product is available off-the-shelf from our European logistics center, ensuring rapid order fulfillment. Moreover, its Ni-Cu-Ni coating shields it against corrosion in typical operating conditions, guaranteeing an aesthetic appearance and durability for years.

It finds application in DIY projects, advanced robotics, and broadly understood industry, serving as a fastening or actuating element. Thanks to the pull force of 33.81 N with a weight of only 3.39 g, this cylindrical magnet is indispensable in electronics and wherever low weight is crucial.

Due to the brittleness of the NdFeB material, we absolutely advise against force-fitting (so-called press-fit), as this risks immediate cracking of this precision component. To ensure long-term durability in industry, anaerobic resins are used, which do not react with the nickel coating and fill the gap, guaranteeing durability of the connection.

Grade N38 is the most popular standard for professional neodymium magnets, offering a great economic balance and operational stability. 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 key parameter here is the lifting capacity amounting to approximately 3.45 kg (force ~33.81 N), which, with such compact 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.

This cylinder is magnetized axially (along the height of 4 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.

Advantages and disadvantages of neodymium magnets.

Benefits

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

They do not lose power, even during nearly 10 years – the reduction in strength is only ~1% (theoretically),
They feature excellent resistance to magnetism drop as a result of external fields,
The use of an shiny layer of noble metals (nickel, gold, silver) causes the element to have aesthetics,
The surface of neodymium magnets generates a powerful magnetic field – this is a distinguishing feature,
Thanks to resistance to high temperature, they are capable of working (depending on the form) even at temperatures up to 230°C and higher...
In view of the ability of flexible molding and customization to custom projects, magnetic components can be created in a variety of geometric configurations, which makes them more universal,
Key role in electronics industry – they are commonly used in HDD drives, electric motors, diagnostic systems, as well as technologically advanced constructions.
Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Limitations

Problematic aspects of neodymium magnets and proposals for their use:

To avoid cracks upon strong impacts, we recommend using special steel housings. Such a solution secures the magnet and simultaneously increases its durability.
We warn that neodymium magnets can reduce their power at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
Magnets exposed to a humid environment can corrode. Therefore during using outdoors, we advise using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
Limited possibility of making threads in the magnet and complicated shapes - preferred is casing - mounting mechanism.
Potential hazard to health – tiny shards of magnets can be dangerous, if swallowed, which gains importance in the context of child health protection. Additionally, tiny parts of these products can be problematic in diagnostics medical after entering the body.
High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which hinders application in large quantities

Pull force analysis

Optimal lifting capacity of a neodymium magnet – what it depends on?

The load parameter shown represents the peak performance, recorded under ideal test conditions, specifically:

using a sheet made of low-carbon steel, functioning as a circuit closing element
possessing a massiveness of min. 10 mm to ensure full flux closure
with an ground contact surface
without the slightest insulating layer between the magnet and steel
for force acting at a right angle (in the magnet axis)
in neutral thermal conditions

Magnet lifting force in use – key factors

Holding efficiency is affected by working environment parameters, including (from priority):

Gap (between the magnet and the metal), as even a very small distance (e.g. 0.5 mm) leads to a reduction in lifting capacity by up to 50% (this also applies to varnish, corrosion or dirt).
Direction of force – maximum parameter is available only during perpendicular pulling. The force required to slide of the magnet along the surface is standardly many times smaller (approx. 1/5 of the lifting capacity).
Plate thickness – insufficiently thick plate causes magnetic saturation, causing part of the power to be escaped to the other side.
Material composition – different alloys reacts the same. High carbon content weaken the attraction effect.
Surface finish – ideal contact is possible only on smooth steel. Any scratches and bumps create air cushions, weakening the magnet.
Thermal factor – high temperature reduces pulling force. Too high temperature can permanently damage the magnet.

Holding force was checked on the plate surface of 20 mm thickness, when the force acted perpendicularly, in contrast under shearing force the lifting capacity is smaller. In addition, even a minimal clearance between the magnet and the plate lowers the holding force.

H&S for magnets

Nickel allergy

Allergy Notice: The Ni-Cu-Ni coating contains nickel. If redness occurs, cease handling magnets and wear gloves.

Do not underestimate power

Use magnets consciously. Their powerful strength can shock even professionals. Plan your moves and respect their power.

GPS Danger

GPS units and smartphones are extremely susceptible to magnetic fields. Direct contact with a powerful NdFeB magnet can permanently damage the internal compass in your phone.

Cards and drives

Do not bring magnets near a purse, computer, or TV. The magnetic field can destroy these devices and wipe information from cards.

Keep away from children

Product intended for adults. Small elements pose a choking risk, leading to serious injuries. Store away from children and animals.

Implant safety

Warning for patients: Powerful magnets disrupt electronics. Maintain at least 30 cm distance or ask another person to handle the magnets.

Mechanical processing

Dust produced during cutting of magnets is self-igniting. Avoid drilling into magnets unless you are an expert.

Do not overheat magnets

Avoid heat. Neodymium magnets are sensitive to heat. If you require operation above 80°C, look for HT versions (H, SH, UH).

Protective goggles

Despite metallic appearance, the material is brittle and cannot withstand shocks. Do not hit, as the magnet may shatter into sharp, dangerous pieces.

Hand protection

Risk of injury: The attraction force is so immense that it can result in hematomas, crushing, and broken bones. Protective gloves are recommended.

Security! Looking for details? Read our article: Why are neodymium magnets dangerous?

MW 12x4 / N38 - cylindrical magnet

Technical details - MW 12x4 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering analysis of the assembly - report

Table 1: Static force (force vs distance) - interaction chart MW 12x4 / N38

Table 2: Shear load (vertical surface) MW 12x4 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces MW 12x4 / N38

Table 4: Material efficiency (substrate influence) - power losses MW 12x4 / N38

Table 5: Thermal resistance (stability) - thermal limit MW 12x4 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field collision MW 12x4 / N38

Table 7: Protective zones (electronics) - warnings MW 12x4 / N38

Table 8: Impact energy (cracking risk) - warning MW 12x4 / N38

Table 9: Anti-corrosion coating durability MW 12x4 / N38

Table 10: Construction data (Pc) MW 12x4 / N38

Table 11: Hydrostatics and buoyancy MW 12x4 / 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

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Advantages and disadvantages of neodymium magnets.

Benefits

Limitations

Pull force analysis

Optimal lifting capacity of a neodymium magnet – what it depends on?

Magnet lifting force in use – key factors

H&S for magnets

Nickel allergy

Do not underestimate power

GPS Danger

Cards and drives

Keep away from children

Implant safety

Mechanical processing

Do not overheat magnets

Protective goggles

Hand protection

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs distance) - interaction chart
MW 12x4 / N38

Table 2: Shear load (vertical surface)
MW 12x4 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 12x4 / N38

Table 4: Material efficiency (substrate influence) - power losses
MW 12x4 / N38

Table 5: Thermal resistance (stability) - thermal limit
MW 12x4 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field collision
MW 12x4 / N38

Table 7: Protective zones (electronics) - warnings
MW 12x4 / N38

Table 8: Impact energy (cracking risk) - warning
MW 12x4 / N38

Table 9: Anti-corrosion coating durability
MW 12x4 / N38

Table 10: Construction data (P_c)
MW 12x4 / N38

Table 11: Hydrostatics and buoyancy
MW 12x4 / N38