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MP 12x8/4x3 / N38 - ring 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

ring magnet

Catalog no 030395

GTIN/EAN: 5906301812326

5.00

Diameter

12 mm [±0,1 mm]

internal diameter Ø

8/4 mm [±0,1 mm]

Height

3 mm [±0,1 mm]

Weight

2.26 g

Magnetization Direction

↑ axial

Load capacity

2.21 kg / 21.72 N

Magnetic Induction

277.09 mT / 2771 Gs

Coating

[NiCuNi] Nickel

see parameters »

1.427 ZŁ with VAT / pcs + price for transport

1.160 ZŁ net + 23% VAT / pcs

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Technical - MP 12x8/4x3 / N38 - ring magnet

Specification / characteristics - MP 12x8/4x3 / N38 - ring magnet

properties

properties	values
Cat. no.	030395
GTIN/EAN	5906301812326
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	12 mm [±0,1 mm]
internal diameter Ø	8/4 mm [±0,1 mm]
Height	3 mm [±0,1 mm]
Weight	2.26 g
Magnetization Direction	↑ axial
Load capacity ~ ?	2.21 kg / 21.72 N
Magnetic Induction ~ ?	277.09 mT / 2771 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MP 12x8/4x3 / N38 - ring 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 simulation of the magnet - technical parameters

These values constitute the outcome of a engineering analysis. Results rely on algorithms for the material Nd₂Fe₁₄B. Actual conditions might slightly deviate from the simulation results. Please consider these calculations as a preliminary roadmap during assembly planning.

Table 1: Static force (force vs distance) - interaction chart
MP 12x8/4x3 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	2423 Gs 242.3 mT	2.21 kg / 4.87 lbs 2210.0 g / 21.7 N	warning
1 mm	2138 Gs 213.8 mT	1.72 kg / 3.79 lbs 1720.7 g / 16.9 N	safe
2 mm	1786 Gs 178.6 mT	1.20 kg / 2.65 lbs 1200.5 g / 11.8 N	safe
3 mm	1437 Gs 143.7 mT	0.78 kg / 1.71 lbs 777.8 g / 7.6 N	safe
5 mm	885 Gs 88.5 mT	0.29 kg / 0.65 lbs 294.7 g / 2.9 N	safe
10 mm	277 Gs 27.7 mT	0.03 kg / 0.06 lbs 28.9 g / 0.3 N	safe
15 mm	110 Gs 11.0 mT	0.00 kg / 0.01 lbs 4.6 g / 0.0 N	safe
20 mm	53 Gs 5.3 mT	0.00 kg / 0.00 lbs 1.1 g / 0.0 N	safe
30 mm	18 Gs 1.8 mT	0.00 kg / 0.00 lbs 0.1 g / 0.0 N	safe
50 mm	4 Gs 0.4 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	safe

Pulling power drops drastically with every subsequent millimeter of gap. Note that even a microscopic distance (e.g., contamination, paint, veneer) significantly reduces the pull force. Neodymiums operate strongest at the point of direct contact; air break nullifies the force. See how rapidly the pull force fall, when the magnet does not adhere directly to the steel surface. When calculating the assembly, eliminate redundant distances.

Table 2: Vertical capacity (vertical surface)
MP 12x8/4x3 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.44 kg / 0.97 lbs 442.0 g / 4.3 N
1 mm	Stal (~0.2)	0.34 kg / 0.76 lbs 344.0 g / 3.4 N
2 mm	Stal (~0.2)	0.24 kg / 0.53 lbs 240.0 g / 2.4 N
3 mm	Stal (~0.2)	0.16 kg / 0.34 lbs 156.0 g / 1.5 N
5 mm	Stal (~0.2)	0.06 kg / 0.13 lbs 58.0 g / 0.6 N
10 mm	Stal (~0.2)	0.01 kg / 0.01 lbs 6.0 g / 0.1 N
15 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 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 calculates the theoretical force necessary to cause the downward movement of the magnet down against a vertical steel plate (considering standard friction coefficient). The holding force depends on the separation distance between the magnet and the surface.

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MP 12x8/4x3 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.66 kg / 1.46 lbs 663.0 g / 6.5 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.44 kg / 0.97 lbs 442.0 g / 4.3 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.22 kg / 0.49 lbs 221.0 g / 2.2 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	1.11 kg / 2.44 lbs 1105.0 g / 10.8 N

When mounting a holder on a vertical surface (e.g., a board), it will maintain only approx. 20%-30% of nominal attraction strength. Gravity as well as a weak degree of grip cause that products slide down faster than they detach. Planning a hanger? Remember that the sliding force is much weaker than the maximum static pull force. On a painted metal, the element will slide down under a significantly smaller load. Using a rubber layer can significantly increase the grip.

Table 4: Steel thickness (substrate influence) - sheet metal selection
MP 12x8/4x3 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.22 kg / 0.49 lbs 221.0 g / 2.2 N
1 mm	25%	0.55 kg / 1.22 lbs 552.5 g / 5.4 N
2 mm	50%	1.11 kg / 2.44 lbs 1105.0 g / 10.8 N
3 mm	75%	1.66 kg / 3.65 lbs 1657.5 g / 16.3 N
5 mm	100%	2.21 kg / 4.87 lbs 2210.0 g / 21.7 N
10 mm	100%	2.21 kg / 4.87 lbs 2210.0 g / 21.7 N
11 mm	100%	2.21 kg / 4.87 lbs 2210.0 g / 21.7 N
12 mm	100%	2.21 kg / 4.87 lbs 2210.0 g / 21.7 N

A thin sheet cannot take in the entire magnetic field, which wastes potential of the magnet. Should you install a neodymium to a weak sheet, the magnetism will penetrate right through and the attraction force will be weaker. To squeeze 100% of this magnet's power, you need a suitably thick piece of steel. The saturation effect means that on sheet metal structures (e.g., thin profiles), the holder holds weaker. We recommend selecting the steel thickness based on the following data.

Table 5: Thermal stability (material behavior) - thermal limit
MP 12x8/4x3 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	2.21 kg / 4.87 lbs 2210.0 g / 21.7 N	OK
40 °C	-2.2%	2.16 kg / 4.77 lbs 2161.4 g / 21.2 N	OK
60 °C	-4.4%	2.11 kg / 4.66 lbs 2112.8 g / 20.7 N
80 °C	-6.6%	2.06 kg / 4.55 lbs 2064.1 g / 20.2 N
100 °C	-28.8%	1.57 kg / 3.47 lbs 1573.5 g / 15.4 N

Standard neodymium magnets change their properties power past the thermal threshold. Watch out for overheating – heat can irreversibly demagnetize this product. With every degree above norm, the magnet's force momentarily drops. Do not use this magnet in hot environments higher than its operating temperature limit. Ignoring the limit will result in permanent loss of magnetism.

*Important note: Temperature resistance depends not only on the material grade, and the Permeance Coefficient Pc. Thin magnets (pancake types) are more susceptible to demagnetization under lower heat stress than long magnets. Warning indicator in the table points to a risk of irreversible loss for this particular item.

Table 6: Magnet-Magnet interaction (attraction) - field range
MP 12x8/4x3 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Strength (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	3.09 kg / 6.82 lbs 4 010 Gs	0.46 kg / 1.02 lbs 464 g / 4.6 N	N/A
1 mm	2.77 kg / 6.12 lbs 4 589 Gs	0.42 kg / 0.92 lbs 416 g / 4.1 N	2.50 kg / 5.50 lbs ~0 Gs
2 mm	2.41 kg / 5.31 lbs 4 276 Gs	0.36 kg / 0.80 lbs 361 g / 3.5 N	2.17 kg / 4.78 lbs ~0 Gs
3 mm	2.03 kg / 4.48 lbs 3 930 Gs	0.31 kg / 0.67 lbs 305 g / 3.0 N	1.83 kg / 4.04 lbs ~0 Gs
5 mm	1.36 kg / 3.00 lbs 3 216 Gs	0.20 kg / 0.45 lbs 204 g / 2.0 N	1.23 kg / 2.70 lbs ~0 Gs
10 mm	0.41 kg / 0.91 lbs 1 770 Gs	0.06 kg / 0.14 lbs 62 g / 0.6 N	0.37 kg / 0.82 lbs ~0 Gs
20 mm	0.04 kg / 0.09 lbs 554 Gs	0.01 kg / 0.01 lbs 6 g / 0.1 N	0.04 kg / 0.08 lbs ~0 Gs
50 mm	0.00 kg / 0.00 lbs 58 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 35 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 23 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 16 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 11 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 8 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 much further distance than a magnet and sheet combination. The connection of two magnets generates a stronger field and a wider radius of performance. Want to build a solid fastener? Utilize two neodymiums instead of a neodymium and a striker plate. Remember that when bringing together two magnets, the impact force is huge. The repulsion force is marginally weaker than the connection force, but still impressive.
*Flux density between like poles drops to ~0 Gs in the exact middle of the gap (due to field cancellation).
* Results refer to friction force of two identical magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Protective zones (electronics) - warnings
MP 12x8/4x3 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	5.0 cm
Hearing aid	10 Gs (1.0 mT)	4.0 cm
Mechanical watch	20 Gs (2.0 mT)	3.0 cm
Mobile device	40 Gs (4.0 mT)	2.5 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 poses a real danger to electronic devices as well as pacemakers. These neodymiums produce a flux that destroys function of digital equipment. Notice: the invisible magnetic field acts through matter and glass. Exceptional care must be exercised by people with hearing aids and drug dispensers. Influence will be felt by: automatic timepieces, remotes, membranes, and displays. Do not place the magnet near cards, HDD media, or precise measuring instruments.

Table 8: Collisions (kinetic energy) - collision effects
MP 12x8/4x3 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	31.79 km/h (8.83 m/s)	0.09 J
30 mm	54.63 km/h (15.17 m/s)	0.26 J
50 mm	70.52 km/h (19.59 m/s)	0.43 J
100 mm	99.73 km/h (27.70 m/s)	0.87 J

NdFeB products are delicate – a collision with steel risks their cracking. Watch the impact speed – a magnet released freely becomes dangerous. Kinetic force can trigger coating fragments or injury to skin. Hold the magnet firmly during mounting so it doesn't hit violently against the steel surface. A collision at high speed means shattering of the neodymium. Wear safety glasses when handling with powerful specimens.

Table 9: Corrosion resistance
MP 12x8/4x3 / 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)

For outdoor applications, an epoxy coating is required; standard nickel is intended for indoor use. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Electrical data (P_c)
MP 12x8/4x3 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	2 466 Mx	24.7 µWb
P_c Coefficient	0.32	Low (Flat)

Flux value passing through the magnet pole. Key data in coil applications as well as sensors. P_c value defines the magnet's operating point.

Table 11: Submerged application
MP 12x8/4x3 / N38

Environment	Effective steel pull	Effect
Air (land)	2.21 kg	Standard
Water (riverbed)	2.53 kg (+0.32 kg buoyancy gain)	+14.5%

Rust risk: 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. Shear force

*Note: On a vertical wall, the magnet retains only a fraction of its nominal pull.

2. Steel thickness impact

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

3. Power loss vs temp

*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) = 0.32

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

Technical and environmental data

Elemental analysis

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

Ecology and recycling (GPSR)

recyclability (EoL)	100%
recycled raw materials	~10% (pre-cons)
carbon footprint	low / zredukowany
waste code (EWC)	16 02 16

Safety card (GPSR)

responsible entity

Dhit sp. z o.o.

ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki

tel: +48 22 499 98 98 | e-mail: bok@dhit.pl

batch number/type

id: 030395-2026

Measurement Calculator

Pulling force

Force (N)

Force in lbs

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Simply populate any input, and the converter calculate everything else automatically.

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The ring-shaped magnet MP 12x8/4x3 / N38 is created for mechanical fastening, where glue might fail or be insufficient. Thanks to the hole (often for a screw), this model enables quick installation to wood, wall, plastic, or metal. This product with a force of 2.21 kg works great as a door latch, speaker holder, or spacer element in devices.

This material behaves more like porcelain than steel, so it doesn't forgive mistakes during mounting. When tightening the screw, you must maintain caution. We recommend tightening manually with a screwdriver, not an impact driver, because excessive force will cause the ring to crack. The flat screw head should evenly press the magnet. Remember: cracking during assembly results from material properties, not a product defect.

Moisture can penetrate micro-cracks in the coating and cause oxidation of the magnet. Damage to the protective layer during assembly is the most common cause of rusting. This product is dedicated for indoor use. For outdoor applications, we recommend choosing magnets in hermetic housing or additional protection with varnish.

The inner hole diameter determines the maximum size of the mounting element. For magnets with a straight hole, a conical head can act like a wedge and burst the magnet. Always check that the screw head is not larger than the outer diameter of the magnet (12 mm), so it doesn't protrude beyond the outline.

It is a magnetic ring with a diameter of 12 mm and thickness 3 mm. The pulling force of this model is an impressive 2.21 kg, which translates to 21.72 N in newtons. The product has a [NiCuNi] coating and is made of NdFeB material. Inner hole dimension: 8/4 mm.

The poles are located on the planes with holes, not on the sides of the ring. In the case of connecting two rings, make sure one is turned the right way. We do not offer paired sets with marked poles in this category, but they are easy to match manually.

Strengths and weaknesses of Nd₂Fe₁₄B magnets.

Pros

Besides their durability, neodymium magnets are valued for these benefits:

They retain attractive force for around 10 years – the loss is just ~1% (based on simulations),
They retain their magnetic properties even under close interference source,
The use of an elegant coating 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,
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...
Possibility of precise forming and modifying to concrete applications,
Versatile presence in high-tech industry – they serve a role in hard drives, electric drive systems, medical equipment, and technologically advanced constructions.
Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Cons

Problematic aspects of neodymium magnets: tips and applications.

To avoid cracks under impact, we suggest using special steel housings. Such a solution secures the magnet and simultaneously improves 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 rust. Therefore when using outdoors, we suggest using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
Due to limitations in realizing threads and complicated forms in magnets, we recommend using casing - magnetic mechanism.
Possible danger resulting from small fragments of magnets pose a threat, in case of ingestion, which is particularly important in the aspect of protecting the youngest. Additionally, small components of these magnets are able to disrupt the diagnostic process medical after entering the body.
With mass production the cost of neodymium magnets is economically unviable,

Lifting parameters

Breakaway strength of the magnet in ideal conditions – what it depends on?

Magnet power was determined for optimal configuration, including:

on a block made of mild steel, perfectly concentrating the magnetic flux
whose thickness is min. 10 mm
with an ideally smooth contact surface
with zero gap (no paint)
for force applied at a right angle (in the magnet axis)
at room temperature

What influences lifting capacity in practice

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

Gap (between the magnet and the metal), since even a microscopic distance (e.g. 0.5 mm) results in a reduction in force by up to 50% (this also applies to paint, corrosion or dirt).
Direction of force – highest force is available only during perpendicular pulling. The shear force of the magnet along the plate is standardly many times lower (approx. 1/5 of the lifting capacity).
Wall thickness – thin material does not allow full use of the magnet. Part of the magnetic field passes through the material instead of generating force.
Steel type – mild steel gives the best results. Alloy admixtures lower magnetic properties and lifting capacity.
Smoothness – full contact is obtained only on polished steel. Any scratches and bumps reduce the real contact area, weakening the magnet.
Temperature influence – hot environment reduces pulling force. Exceeding the limit temperature can permanently damage the magnet.

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

H&S for magnets

Electronic devices

Avoid bringing magnets close to a wallet, computer, or screen. The magnetic field can permanently damage these devices and wipe information from cards.

Material brittleness

NdFeB magnets are ceramic materials, which means they are very brittle. Impact of two magnets leads to them cracking into small pieces.

Bone fractures

Pinching hazard: The attraction force is so great that it can result in blood blisters, crushing, and even bone fractures. Use thick gloves.

Heat warning

Keep cool. Neodymium magnets are susceptible to heat. If you require operation above 80°C, inquire about special high-temperature series (H, SH, UH).

Dust is flammable

Powder created during grinding of magnets is flammable. Avoid drilling into magnets without proper cooling and knowledge.

GPS Danger

GPS units and mobile phones are extremely susceptible to magnetism. Close proximity with a strong magnet can decalibrate the sensors in your phone.

Allergic reactions

Warning for allergy sufferers: The nickel-copper-nickel coating consists of nickel. If redness happens, immediately stop handling magnets and wear gloves.

Do not underestimate power

Use magnets with awareness. Their immense force can surprise even experienced users. Plan your moves and respect their force.

This is not a toy

Adult use only. Small elements can be swallowed, leading to severe trauma. Store away from kids and pets.

ICD Warning

Medical warning: Neodymium magnets can turn off heart devices and defibrillators. Do not approach if you have electronic implants.

Important! More info about hazards in the article: Safety of working with magnets.

MP 12x8/4x3 / N38 - ring magnet

Technical - MP 12x8/4x3 / N38 - ring magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering simulation of the magnet - technical parameters

Table 1: Static force (force vs distance) - interaction chart MP 12x8/4x3 / N38

Table 2: Vertical capacity (vertical surface) MP 12x8/4x3 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces MP 12x8/4x3 / N38

Table 4: Steel thickness (substrate influence) - sheet metal selection MP 12x8/4x3 / N38

Table 5: Thermal stability (material behavior) - thermal limit MP 12x8/4x3 / N38

Table 6: Magnet-Magnet interaction (attraction) - field range MP 12x8/4x3 / N38

Table 7: Protective zones (electronics) - warnings MP 12x8/4x3 / N38

Table 8: Collisions (kinetic energy) - collision effects MP 12x8/4x3 / N38

Table 9: Corrosion resistance MP 12x8/4x3 / N38

Table 10: Electrical data (Pc) MP 12x8/4x3 / N38

Table 11: Submerged application MP 12x8/4x3 / N38

1. Shear force

2. Steel thickness impact

3. Power loss vs temp

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

Elemental analysis

Ecology and recycling (GPSR)

Pulling force

Field Strength

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Strengths and weaknesses of Nd2Fe14B magnets.

Pros

Cons

Lifting parameters

Breakaway strength of the magnet in ideal conditions – what it depends on?

What influences lifting capacity in practice

H&S for magnets

Electronic devices

Material brittleness

Bone fractures

Heat warning

Dust is flammable

GPS Danger

Allergic reactions

Do not underestimate power

This is not a toy

ICD Warning

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs distance) - interaction chart
MP 12x8/4x3 / N38

Table 2: Vertical capacity (vertical surface)
MP 12x8/4x3 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MP 12x8/4x3 / N38

Table 4: Steel thickness (substrate influence) - sheet metal selection
MP 12x8/4x3 / N38

Table 5: Thermal stability (material behavior) - thermal limit
MP 12x8/4x3 / N38

Table 6: Magnet-Magnet interaction (attraction) - field range
MP 12x8/4x3 / N38

Table 7: Protective zones (electronics) - warnings
MP 12x8/4x3 / N38

Table 8: Collisions (kinetic energy) - collision effects
MP 12x8/4x3 / N38

Table 9: Corrosion resistance
MP 12x8/4x3 / N38

Table 10: Electrical data (P_c)
MP 12x8/4x3 / N38

Table 11: Submerged application
MP 12x8/4x3 / N38

Strengths and weaknesses of Nd₂Fe₁₄B magnets.