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MP 8x6/3.5x3 / 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 030206

GTIN/EAN: 5906301812234

5.00

Diameter

8 mm [±0,1 mm]

internal diameter Ø

6/3.5 mm [±0,1 mm]

Height

3 mm [±0,1 mm]

Weight

0.91 g

Magnetization Direction

↑ axial

Load capacity

1.37 kg / 13.48 N

Magnetic Induction

371.53 mT / 3715 Gs

Coating

[NiCuNi] Nickel

check technical specifications »

0.701 ZŁ with VAT / pcs + price for transport

0.570 ZŁ net + 23% VAT / pcs

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Technical details - MP 8x6/3.5x3 / N38 - ring magnet

Specification / characteristics - MP 8x6/3.5x3 / N38 - ring magnet

properties

properties	values
Cat. no.	030206
GTIN/EAN	5906301812234
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	8 mm [±0,1 mm]
internal diameter Ø	6/3.5 mm [±0,1 mm]
Height	3 mm [±0,1 mm]
Weight	0.91 g
Magnetization Direction	↑ axial
Load capacity ~ ?	1.37 kg / 13.48 N
Magnetic Induction ~ ?	371.53 mT / 3715 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MP 8x6/3.5x3 / 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 modeling of the assembly - technical parameters

These values constitute the direct effect of a mathematical calculation. Results are based on algorithms for the class Nd₂Fe₁₄B. Real-world parameters might slightly deviate from the simulation results. Please consider these calculations as a reference point when designing systems.

Table 1: Static force (force vs distance) - power drop
MP 8x6/3.5x3 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	3327 Gs 332.7 mT	1.37 kg / 3.02 pounds 1370.0 g / 13.4 N	safe
1 mm	2612 Gs 261.2 mT	0.84 kg / 1.86 pounds 844.4 g / 8.3 N	safe
2 mm	1884 Gs 188.4 mT	0.44 kg / 0.97 pounds 439.3 g / 4.3 N	safe
3 mm	1310 Gs 131.0 mT	0.21 kg / 0.47 pounds 212.4 g / 2.1 N	safe
5 mm	637 Gs 63.7 mT	0.05 kg / 0.11 pounds 50.3 g / 0.5 N	safe
10 mm	151 Gs 15.1 mT	0.00 kg / 0.01 pounds 2.8 g / 0.0 N	safe
15 mm	54 Gs 5.4 mT	0.00 kg / 0.00 pounds 0.4 g / 0.0 N	safe
20 mm	25 Gs 2.5 mT	0.00 kg / 0.00 pounds 0.1 g / 0.0 N	safe
30 mm	8 Gs 0.8 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	safe
50 mm	2 Gs 0.2 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	safe

Magnetic force drops drastically per each millimeter of spacing. Remember that even a very thin break (e.g., contamination, paint, dust) significantly weakens the grip. Magnets work strongest in perfect adhesion; gap drastically cuts the power. Analyze how flashily the load capacity fall, when the magnet does not adhere directly to the steel surface. When calculating the assembly, discard unnecessary gaps.

Table 2: Slippage force (wall)
MP 8x6/3.5x3 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.27 kg / 0.60 pounds 274.0 g / 2.7 N
1 mm	Stal (~0.2)	0.17 kg / 0.37 pounds 168.0 g / 1.6 N
2 mm	Stal (~0.2)	0.09 kg / 0.19 pounds 88.0 g / 0.9 N
3 mm	Stal (~0.2)	0.04 kg / 0.09 pounds 42.0 g / 0.4 N
5 mm	Stal (~0.2)	0.01 kg / 0.02 pounds 10.0 g / 0.1 N
10 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N
15 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 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

This section indicates the estimated force sufficient to initiate the slippage of the magnet downwards against a vertical metal surface (assuming standard friction coefficient). This value depends on the separation distance between the magnet and the metal.

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MP 8x6/3.5x3 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.41 kg / 0.91 pounds 411.0 g / 4.0 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.27 kg / 0.60 pounds 274.0 g / 2.7 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.14 kg / 0.30 pounds 137.0 g / 1.3 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.69 kg / 1.51 pounds 685.0 g / 6.7 N

When placing a element on a vertical plane (e.g., a car body), it will only hold only about 1/5 of its nominal power. Gravitational force and a weak degree of grip mean that magnets move down easier than they pop off the substrate. Designing a vertical fastening? Remember that the shear force is noticeably lower than the maximum static pull force. On a smooth steel, the magnet will give way down under a significantly smaller weight. Application of an anti-slip layer can significantly increase the grip.

Table 4: Steel thickness (substrate influence) - sheet metal selection
MP 8x6/3.5x3 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.14 kg / 0.30 pounds 137.0 g / 1.3 N
1 mm	25%	0.34 kg / 0.76 pounds 342.5 g / 3.4 N
2 mm	50%	0.69 kg / 1.51 pounds 685.0 g / 6.7 N
3 mm	75%	1.03 kg / 2.27 pounds 1027.5 g / 10.1 N
5 mm	100%	1.37 kg / 3.02 pounds 1370.0 g / 13.4 N
10 mm	100%	1.37 kg / 3.02 pounds 1370.0 g / 13.4 N
11 mm	100%	1.37 kg / 3.02 pounds 1370.0 g / 13.4 N
12 mm	100%	1.37 kg / 3.02 pounds 1370.0 g / 13.4 N

A thin sheet is incapable of conduct the full magnetic flux, which squanders power of the magnet. Should you attach a powerful product to a too thin substrate, the flux will penetrate right through and the attraction force will be weaker. To utilize full efficiency of this neodymium's power, you require a sufficiently solid piece of steel. The saturation effect causes that on delicate walls (e.g., appliance housings), the holder shows lower pull force. We recommend selecting the steel dimension based on the following data.

Table 5: Working in heat (stability) - thermal limit
MP 8x6/3.5x3 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	1.37 kg / 3.02 pounds 1370.0 g / 13.4 N	OK
40 °C	-2.2%	1.34 kg / 2.95 pounds 1339.9 g / 13.1 N	OK
60 °C	-4.4%	1.31 kg / 2.89 pounds 1309.7 g / 12.8 N
80 °C	-6.6%	1.28 kg / 2.82 pounds 1279.6 g / 12.6 N
100 °C	-28.8%	0.98 kg / 2.15 pounds 975.4 g / 9.6 N

Standard neodymium magnets lose parameters past the thermal threshold. Watch out for overheating – excessive heat can permanently destroy this product. As the temperature rises, the magnet's capacity temporarily drops. Refrain from using this product near heat sources higher than its working range. Exceeding the critical threshold will lead to permanent loss of magnetic properties.

*Technical advisory: Temperature resistance depends not only on the material grade, as well as the dimension ratios. Thin magnets (low permeance coefficient) are more susceptible to demagnetization under lower heat stress than taller cylinders. Warning indicator in the table indicates permanent field degradation for this particular item.

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MP 8x6/3.5x3 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	2.36 kg / 5.20 pounds 4 867 Gs	0.35 kg / 0.78 pounds 354 g / 3.5 N	N/A
1 mm	1.90 kg / 4.20 pounds 5 981 Gs	0.29 kg / 0.63 pounds 286 g / 2.8 N	1.71 kg / 3.78 pounds ~0 Gs
2 mm	1.45 kg / 3.20 pounds 5 223 Gs	0.22 kg / 0.48 pounds 218 g / 2.1 N	1.31 kg / 2.88 pounds ~0 Gs
3 mm	1.06 kg / 2.34 pounds 4 468 Gs	0.16 kg / 0.35 pounds 159 g / 1.6 N	0.96 kg / 2.11 pounds ~0 Gs
5 mm	0.53 kg / 1.16 pounds 3 148 Gs	0.08 kg / 0.17 pounds 79 g / 0.8 N	0.47 kg / 1.05 pounds ~0 Gs
10 mm	0.09 kg / 0.19 pounds 1 274 Gs	0.01 kg / 0.03 pounds 13 g / 0.1 N	0.08 kg / 0.17 pounds ~0 Gs
20 mm	0.00 kg / 0.01 pounds 301 Gs	0.00 kg / 0.00 pounds 1 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
50 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
60 mm	0.00 kg / 0.00 pounds 16 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 10 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 7 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 5 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 4 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs

Two strong neodymiums interact from a much further distance than a neodymium and metal combination. The connection of two magnets creates a more powerful interaction and a larger range of performance. Designing a strong closure? Apply two magnets instead of a neodymium and a striker plate. Be careful that when connecting a pair of magnets, the pinch force is extreme. The repulsion force is marginally weaker than the connection force, but still significant.
*Flux density in repulsion mode reaches ~0 Gs in the exact middle of the gap (due to field cancellation).
Note: Calculations demonstrate friction force of two matching neodymium magnets (friction ~0.15 for Ni-Ni layer).

Table 7: Hazards (electronics) - warnings
MP 8x6/3.5x3 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	4.0 cm
Hearing aid	10 Gs (1.0 mT)	3.0 cm
Mechanical watch	20 Gs (2.0 mT)	2.5 cm
Mobile device	40 Gs (4.0 mT)	2.0 cm
Remote	50 Gs (5.0 mT)	2.0 cm
Payment card	400 Gs (40.0 mT)	1.0 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 produce a flux that prevents correct functioning of digital equipment. Remember: the invisible magnetic field passes through tissues and plastic. Special caution must be taken by people with hearing aids and drug dispensers. The risk also applies to: automatic timepieces, car keys, membranes, and displays. Avoid contact with magnetic cards, HDD media, or precise measuring instruments.

Table 8: Collisions (cracking risk) - collision effects
MP 8x6/3.5x3 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	39.18 km/h (10.88 m/s)	0.05 J
30 mm	67.78 km/h (18.83 m/s)	0.16 J
50 mm	87.50 km/h (24.31 m/s)	0.27 J
100 mm	123.74 km/h (34.37 m/s)	0.54 J

NdFeB products are very brittle – a strong collision with metal can result in shattering. Watch the impact speed – a neodymium left loose turns into a projectile. Striking energy can destroy the magnet or painful pinches to fingers. Hold the magnet firmly during installation so it doesn't slam with momentum against the metal. A collision at high speed ends with a crack of the magnet. Wear eye protection when working with large magnets.

Table 9: Anti-corrosion coating durability
MP 8x6/3.5x3 / 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: Electrical data (Flux)
MP 8x6/3.5x3 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	1 299 Mx	13.0 µWb
P_c Coefficient	0.46	Low (Flat)

Total magnetic flux emitted by the pole surface. Key data in coil applications as well as sensors. P_c value defines the working geometry.

Table 11: Physics of underwater searching
MP 8x6/3.5x3 / N38

Environment	Effective steel pull	Effect
Air (land)	1.37 kg	Standard
Water (riverbed)	1.57 kg (+0.20 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. However, remember the water resistance when pulling the rope quickly.

1. Vertical hold

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

2. Steel saturation

*Thin steel (e.g. computer case) significantly 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) = 0.46

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: 030206-2026

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It is ideally suited for places where solid attachment of the magnet to the substrate is required without the risk of detachment. Mounting is clean and reversible, unlike gluing. This product with a force of 1.37 kg works great as a door latch, speaker holder, or mounting element in devices.

This is a crucial issue when working with model MP 8x6/3.5x3 / N38. Neodymium magnets are sintered ceramics, which means they are very brittle and inelastic. One turn too many can destroy the magnet, so do it slowly. It's a good idea to use a rubber spacer under the screw head, which will cushion the stresses. Remember: cracking during assembly results from material properties, not a product defect.

These magnets are coated with standard Ni-Cu-Ni plating, which protects them in indoor conditions, but does not ensure full waterproofing. 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 (8 mm), so it doesn't protrude beyond the outline.

The presented product is a ring magnet with dimensions Ø8 mm (outer diameter) and height 3 mm. The pulling force of this model is an impressive 1.37 kg, which translates to 13.48 N in newtons. The product has a [NiCuNi] coating and is made of NdFeB material. Inner hole dimension: 6/3.5 mm.

These magnets are magnetized axially (through the thickness), which means one flat side is the N pole and the other is S. In the case of connecting two rings, make sure one is turned the right way. When ordering a larger quantity, magnets are usually packed in stacks, where they are already naturally paired.

Advantages as well as disadvantages of rare earth magnets.

Advantages

Besides their exceptional strength, neodymium magnets offer the following advantages:

They retain attractive force for almost ten years – the drop is just ~1% (in theory),
Neodymium magnets remain highly resistant to loss of magnetic properties caused by external magnetic fields,
Thanks to the glossy finish, the coating of Ni-Cu-Ni, gold, or silver-plated gives an aesthetic appearance,
The surface of neodymium magnets generates a powerful magnetic field – this is one of their assets,
Through (adequate) combination of ingredients, they can achieve high thermal resistance, allowing for operation at temperatures reaching 230°C and above...
Considering the option of precise forming and adaptation to individualized projects, NdFeB magnets can be produced in a variety of shapes and sizes, which makes them more universal,
Fundamental importance in high-tech industry – they serve a role in HDD drives, drive modules, diagnostic systems, and complex engineering applications.
Thanks to efficiency per cm³, small magnets offer high operating force, in miniature format,

Limitations

Problematic aspects of neodymium magnets and proposals for their use:

Brittleness is one of their disadvantages. Upon intense impact they can break. We advise keeping them in a special holder, which not only secures them against impacts but also increases their durability
Neodymium magnets lose their power under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material resistant to moisture, when using outdoors
We suggest casing - magnetic holder, due to difficulties in creating nuts inside the magnet and complex shapes.
Health risk to health – tiny shards of magnets pose a threat, when accidentally swallowed, which gains importance in the context of child health protection. Additionally, small components of these products are able to disrupt the diagnostic process medical when they are in the body.
Due to expensive raw materials, their price exceeds standard values,

Lifting parameters

Detachment force of the magnet in optimal conditions – what affects it?

Magnet power was determined for the most favorable conditions, assuming:

with the use of a sheet made of low-carbon steel, ensuring maximum field concentration
with a thickness no less than 10 mm
with a surface perfectly flat
with total lack of distance (without paint)
for force acting at a right angle (pull-off, not shear)
at room temperature

Lifting capacity in practice – influencing factors

During everyday use, the real power depends on a number of factors, presented from crucial:

Gap (between the magnet and the plate), because even a very small clearance (e.g. 0.5 mm) can cause a drastic drop in force by up to 50% (this also applies to paint, corrosion or debris).
Loading method – declared lifting capacity refers to detachment vertically. When attempting to slide, the magnet holds much less (typically approx. 20-30% of maximum force).
Steel thickness – too thin sheet does not accept the full field, causing part of the power to be escaped into the air.
Steel grade – the best choice is high-permeability steel. Hardened steels may generate lower lifting capacity.
Plate texture – smooth surfaces guarantee perfect abutment, which improves field saturation. Rough surfaces reduce efficiency.
Thermal conditions – neodymium magnets have a sensitivity to temperature. When it is hot they are weaker, and at low temperatures gain strength (up to a certain limit).

Lifting capacity was assessed with the use of a smooth steel plate of suitable thickness (min. 20 mm), under perpendicular detachment force, whereas under parallel forces the load capacity is reduced by as much as 75%. In addition, even a minimal clearance between the magnet’s surface and the plate decreases the load capacity.

Safety rules for work with NdFeB magnets

GPS and phone interference

A powerful magnetic field negatively affects the operation of magnetometers in smartphones and GPS navigation. Do not bring magnets close to a device to prevent breaking the sensors.

Data carriers

Equipment safety: Strong magnets can damage payment cards and delicate electronics (heart implants, medical aids, timepieces).

Fire warning

Fire warning: Rare earth powder is explosive. Do not process magnets without safety gear as this may cause fire.

Warning for heart patients

Warning for patients: Strong magnetic fields affect medical devices. Keep at least 30 cm distance or request help to work with the magnets.

No play value

These products are not intended for children. Accidental ingestion of multiple magnets can lead to them connecting inside the digestive tract, which poses a severe health hazard and necessitates immediate surgery.

Eye protection

Despite the nickel coating, neodymium is brittle and not impact-resistant. Avoid impacts, as the magnet may shatter into sharp, dangerous pieces.

Crushing force

Protect your hands. Two large magnets will snap together instantly with a force of massive weight, crushing anything in their path. Exercise extreme caution!

Do not overheat magnets

Do not overheat. Neodymium magnets are susceptible to temperature. If you need operation above 80°C, inquire about HT versions (H, SH, UH).

Avoid contact if allergic

Studies show that nickel (the usual finish) is a potent allergen. If your skin reacts to metals, avoid direct skin contact or choose coated magnets.

Conscious usage

Handle magnets with awareness. Their immense force can shock even professionals. Stay alert and do not underestimate their force.

Attention! Learn more about risks in the article: Safety of working with magnets.

MP 8x6/3.5x3 / N38 - ring magnet

Technical details - MP 8x6/3.5x3 / N38 - ring magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering modeling of the assembly - technical parameters

Table 1: Static force (force vs distance) - power drop MP 8x6/3.5x3 / N38

Table 2: Slippage force (wall) MP 8x6/3.5x3 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces MP 8x6/3.5x3 / N38

Table 4: Steel thickness (substrate influence) - sheet metal selection MP 8x6/3.5x3 / N38

Table 5: Working in heat (stability) - thermal limit MP 8x6/3.5x3 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system MP 8x6/3.5x3 / N38

Table 7: Hazards (electronics) - warnings MP 8x6/3.5x3 / N38

Table 8: Collisions (cracking risk) - collision effects MP 8x6/3.5x3 / N38

Table 9: Anti-corrosion coating durability MP 8x6/3.5x3 / N38

Table 10: Electrical data (Flux) MP 8x6/3.5x3 / N38

Table 11: Physics of underwater searching MP 8x6/3.5x3 / N38

1. Vertical hold

2. Steel saturation

3. Power loss vs temp

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

Material specification

Ecology and recycling (GPSR)

Force (pull)

Magnetic Field

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MW 16x3 / N38 - cylindrical magnet

Advantages as well as disadvantages of rare earth magnets.

Advantages

Limitations

Lifting parameters

Detachment force of the magnet in optimal conditions – what affects it?

Lifting capacity in practice – influencing factors

Safety rules for work with NdFeB magnets

GPS and phone interference

Data carriers

Fire warning

Warning for heart patients

No play value

Eye protection

Crushing force

Do not overheat magnets

Avoid contact if allergic

Conscious usage

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs distance) - power drop
MP 8x6/3.5x3 / N38

Table 2: Slippage force (wall)
MP 8x6/3.5x3 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MP 8x6/3.5x3 / N38

Table 4: Steel thickness (substrate influence) - sheet metal selection
MP 8x6/3.5x3 / N38

Table 5: Working in heat (stability) - thermal limit
MP 8x6/3.5x3 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MP 8x6/3.5x3 / N38

Table 7: Hazards (electronics) - warnings
MP 8x6/3.5x3 / N38

Table 8: Collisions (cracking risk) - collision effects
MP 8x6/3.5x3 / N38

Table 9: Anti-corrosion coating durability
MP 8x6/3.5x3 / N38

Table 10: Electrical data (Flux)
MP 8x6/3.5x3 / N38

Table 11: Physics of underwater searching
MP 8x6/3.5x3 / N38