Product available Ships today (order by 14:00)

MP 20x8x6 / 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 030189

GTIN/EAN: 5906301812067

5.00

Diameter

20 mm [±0,1 mm]

internal diameter Ø

8 mm [±0,1 mm]

Height

6 mm [±0,1 mm]

Weight

11.88 g

Magnetization Direction

↑ axial

Load capacity

7.22 kg / 70.81 N

Magnetic Induction

318.85 mT / 3188 Gs

Coating

[NiCuNi] Nickel

product parameters »

5.17 ZŁ with VAT / pcs + price for transport

4.20 ZŁ net + 23% VAT / pcs

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Contact us by phone +48 22 499 98 98 if you prefer drop us a message using inquiry form the contact form page.
Lifting power as well as appearance of a neodymium magnet can be tested using our our magnetic calculator.

Orders placed before 14:00 will be shipped the same business day.

Product card - MP 20x8x6 / N38 - ring magnet

Specification / characteristics - MP 20x8x6 / N38 - ring magnet

properties

properties	values
Cat. no.	030189
GTIN/EAN	5906301812067
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	20 mm [±0,1 mm]
internal diameter Ø	8 mm [±0,1 mm]
Height	6 mm [±0,1 mm]
Weight	11.88 g
Magnetization Direction	↑ axial
Load capacity ~ ?	7.22 kg / 70.81 N
Magnetic Induction ~ ?	318.85 mT / 3188 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MP 20x8x6 / 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

Technical simulation of the product - technical parameters

Presented information represent the outcome of a mathematical calculation. Values are based on algorithms for the class Nd₂Fe₁₄B. Real-world conditions may deviate from the simulation results. Use these data as a reference point during assembly planning.

Table 1: Static force (force vs gap) - characteristics
MP 20x8x6 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	5917 Gs 591.7 mT	7.22 kg / 15.92 LBS 7220.0 g / 70.8 N	warning
1 mm	5321 Gs 532.1 mT	5.84 kg / 12.87 LBS 5839.8 g / 57.3 N	warning
2 mm	4736 Gs 473.6 mT	4.63 kg / 10.20 LBS 4626.6 g / 45.4 N	warning
3 mm	4184 Gs 418.4 mT	3.61 kg / 7.96 LBS 3610.0 g / 35.4 N	warning
5 mm	3216 Gs 321.6 mT	2.13 kg / 4.70 LBS 2132.9 g / 20.9 N	warning
10 mm	1650 Gs 165.0 mT	0.56 kg / 1.24 LBS 561.3 g / 5.5 N	weak grip
15 mm	907 Gs 90.7 mT	0.17 kg / 0.37 LBS 169.7 g / 1.7 N	weak grip
20 mm	544 Gs 54.4 mT	0.06 kg / 0.13 LBS 61.1 g / 0.6 N	weak grip
30 mm	240 Gs 24.0 mT	0.01 kg / 0.03 LBS 11.9 g / 0.1 N	weak grip
50 mm	75 Gs 7.5 mT	0.00 kg / 0.00 LBS 1.2 g / 0.0 N	weak grip

Grip strength decreases drastically with every mm of spacing. Note that even a microscopic distance (e.g., dirt, varnish, dust) significantly weakens the grip. Magnetic products operate strongest during direct contact; gap weakens the power. Notice how flashily the parameters drop, when the product does not adhere tightly to the steel surface. When calculating the arrangement, eliminate additional spacers.

Table 2: Vertical load (vertical surface)
MP 20x8x6 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	1.44 kg / 3.18 LBS 1444.0 g / 14.2 N
1 mm	Stal (~0.2)	1.17 kg / 2.57 LBS 1168.0 g / 11.5 N
2 mm	Stal (~0.2)	0.93 kg / 2.04 LBS 926.0 g / 9.1 N
3 mm	Stal (~0.2)	0.72 kg / 1.59 LBS 722.0 g / 7.1 N
5 mm	Stal (~0.2)	0.43 kg / 0.94 LBS 426.0 g / 4.2 N
10 mm	Stal (~0.2)	0.11 kg / 0.25 LBS 112.0 g / 1.1 N
15 mm	Stal (~0.2)	0.03 kg / 0.07 LBS 34.0 g / 0.3 N
20 mm	Stal (~0.2)	0.01 kg / 0.03 LBS 12.0 g / 0.1 N
30 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 2.0 g / 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 0.0 g / 0.0 N

The following data defines the approximate shear load needed to initiate the downward movement of the magnet downwards along a upright steel plate (assuming typical friction). This parameter is a function of the air gap between the magnet and the metal.

Table 3: Vertical assembly (sliding) - vertical pull
MP 20x8x6 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	2.17 kg / 4.78 LBS 2166.0 g / 21.2 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	1.44 kg / 3.18 LBS 1444.0 g / 14.2 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.72 kg / 1.59 LBS 722.0 g / 7.1 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	3.61 kg / 7.96 LBS 3610.0 g / 35.4 N

When placing a holder on a upright plane (e.g., a fridge), it will only hold just approx. 1/5 of nominal attraction strength. Gravity as well as a weak degree of grip cause that magnets move down easier than they pop off the substrate. Want to create a vertical fastening? Consider that the sliding force is noticeably lower than the maximum static pull force. On a smooth steel, the element will slide down under a noticeably lighter weight. Using a rubber layer can significantly increase the grip.

Table 4: Steel thickness (saturation) - sheet metal selection
MP 20x8x6 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.72 kg / 1.59 LBS 722.0 g / 7.1 N
1 mm	25%	1.81 kg / 3.98 LBS 1805.0 g / 17.7 N
2 mm	50%	3.61 kg / 7.96 LBS 3610.0 g / 35.4 N
3 mm	75%	5.42 kg / 11.94 LBS 5415.0 g / 53.1 N
5 mm	100%	7.22 kg / 15.92 LBS 7220.0 g / 70.8 N
10 mm	100%	7.22 kg / 15.92 LBS 7220.0 g / 70.8 N
11 mm	100%	7.22 kg / 15.92 LBS 7220.0 g / 70.8 N
12 mm	100%	7.22 kg / 15.92 LBS 7220.0 g / 70.8 N

A thin sheet is unable to conduct the entire magnetic field, which wastes potential of the holder. If you mount a strong magnet to a too thin substrate, the field will penetrate right through and the holding will be smaller. To squeeze 100% of this magnet's power, you need a suitably thick backing of steel. The saturation phenomenon means that on thin elements (e.g., appliance housings), the holder works worse. We recommend selecting the steel cross-section according to the table below.

Table 5: Working in heat (stability) - power drop
MP 20x8x6 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	7.22 kg / 15.92 LBS 7220.0 g / 70.8 N	OK
40 °C	-2.2%	7.06 kg / 15.57 LBS 7061.2 g / 69.3 N	OK
60 °C	-4.4%	6.90 kg / 15.22 LBS 6902.3 g / 67.7 N	OK
80 °C	-6.6%	6.74 kg / 14.87 LBS 6743.5 g / 66.2 N
100 °C	-28.8%	5.14 kg / 11.33 LBS 5140.6 g / 50.4 N

Classic neodymiums irreversibly lose parameters past the thermal threshold. Protect against heat – high temperature can permanently demagnetize this product. As the temperature rises, the magnet's force briefly drops. Do not use this product close to ovens exceeding its working range. Ignoring the limit will lead to destruction of magnetic properties.

*Engineering note: Temperature resistance depends not only on the material grade, and the Permeance Coefficient Pc. Thin magnets (low permeance coefficient) are more susceptible to demagnetization under lower heat stress than taller cylinders. The danger warning in the table signals permanent field degradation for this specific geometry.

Table 6: Magnet-Magnet interaction (repulsion) - field range
MP 20x8x6 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	52.44 kg / 115.62 LBS 6 121 Gs	7.87 kg / 17.34 LBS 7867 g / 77.2 N	N/A
1 mm	47.33 kg / 104.35 LBS 11 242 Gs	7.10 kg / 15.65 LBS 7100 g / 69.6 N	42.60 kg / 93.91 LBS ~0 Gs
2 mm	42.42 kg / 93.52 LBS 10 642 Gs	6.36 kg / 14.03 LBS 6363 g / 62.4 N	38.18 kg / 84.16 LBS ~0 Gs
3 mm	37.84 kg / 83.42 LBS 10 051 Gs	5.68 kg / 12.51 LBS 5675 g / 55.7 N	34.05 kg / 75.07 LBS ~0 Gs
5 mm	29.73 kg / 65.55 LBS 8 910 Gs	4.46 kg / 9.83 LBS 4460 g / 43.8 N	26.76 kg / 59.00 LBS ~0 Gs
10 mm	15.49 kg / 34.16 LBS 6 432 Gs	2.32 kg / 5.12 LBS 2324 g / 22.8 N	13.94 kg / 30.74 LBS ~0 Gs
20 mm	4.08 kg / 8.99 LBS 3 299 Gs	0.61 kg / 1.35 LBS 612 g / 6.0 N	3.67 kg / 8.09 LBS ~0 Gs
50 mm	0.18 kg / 0.41 LBS 702 Gs	0.03 kg / 0.06 LBS 28 g / 0.3 N	0.17 kg / 0.37 LBS ~0 Gs
60 mm	0.09 kg / 0.19 LBS 480 Gs	0.01 kg / 0.03 LBS 13 g / 0.1 N	0.08 kg / 0.17 LBS ~0 Gs
70 mm	0.04 kg / 0.10 LBS 342 Gs	0.01 kg / 0.01 LBS 7 g / 0.1 N	0.04 kg / 0.09 LBS ~0 Gs
80 mm	0.02 kg / 0.05 LBS 253 Gs	0.00 kg / 0.01 LBS 4 g / 0.0 N	0.02 kg / 0.05 LBS ~0 Gs
90 mm	0.01 kg / 0.03 LBS 193 Gs	0.00 kg / 0.00 LBS 2 g / 0.0 N	0.01 kg / 0.03 LBS ~0 Gs
100 mm	0.01 kg / 0.02 LBS 150 Gs	0.00 kg / 0.00 LBS 1 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs

Two strong neodymiums attract each other from a significantly greater distance than a magnet and steel combination. The setup 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 steel. Exercise caution that when connecting a pair of magnets, the collision energy is huge. The repulsion force is marginally weaker than the connection force, but still large.
*Field value in repulsion mode drops to ~0 Gs at the geometric center of the gap (caused by magnetic field nullification).
Attention: Figures apply to shear force of a pair of matching magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Safety (HSE) (implants) - precautionary measures
MP 20x8x6 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	14.5 cm
Hearing aid	10 Gs (1.0 mT)	11.5 cm
Mechanical watch	20 Gs (2.0 mT)	9.0 cm
Mobile device	40 Gs (4.0 mT)	6.5 cm
Remote	50 Gs (5.0 mT)	6.0 cm
Payment card	400 Gs (40.0 mT)	2.5 cm
HDD hard drive	600 Gs (60.0 mT)	2.0 cm

A strong magnetic field is a serious hazard to IT equipment as well as medical implants. These NdFeB products generate a field that prevents correct functioning of sensitive medical devices. Notice: the invisible magnetic field penetrates the body and glass. Special caution must be exercised by people with cochlear implants and drug dispensers. The risk also applies to: mechanical watches, remotes, speakers, and displays. Do not place the magnet near cards, HDD media, or precise measuring instruments.

Table 8: Impact energy (cracking risk) - warning
MP 20x8x6 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	26.04 km/h (7.23 m/s)	0.31 J
30 mm	43.11 km/h (11.97 m/s)	0.85 J
50 mm	55.60 km/h (15.44 m/s)	1.42 J
100 mm	78.62 km/h (21.84 m/s)	2.83 J

Neodymium magnets are delicate – a collision with steel risks their cracking. Pay attention to connection velocity – a magnet released freely turns into a projectile. Striking energy can trigger coating fragments or injury to skin. Hold the magnet firmly during bringing near metal so it doesn't hit violently against the metal. A collision at high speed ends with a crack of the neodymium. Wear safety glasses when handling with powerful specimens.

Table 9: Corrosion resistance
MP 20x8x6 / N38

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

The following table defines the conditions under which this product can be safely used. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Construction data (P_c)
MP 20x8x6 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	15 688 Mx	156.9 µWb
P_c Coefficient	1.14	High (Stable)

Flux value passing through the pole surface. Key data when building generators and motors. The P_c coefficient defines the working geometry.

Table 11: Underwater work (magnet fishing)
MP 20x8x6 / N38

Environment	Effective steel pull	Effect
Air (land)	7.22 kg	Standard
Water (riverbed)	8.27 kg (+1.05 kg buoyancy gain)	+14.5%

Warning: Remember to wipe the magnet thoroughly after removing it from water and apply a protective layer (e.g., oil) to avoid corrosion.

Water displaces steel, making heavy objects slightly lighter. Buoyancy helps in lifting finds.

1. Sliding resistance

*Warning: On a vertical wall, the magnet retains merely ~20% of its max power.

2. Steel thickness impact

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

3. Power loss vs temp

*For N38 material, the safety limit is 80°C.

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 1.14

This simulation demonstrates the magnetic stability of the selected magnet under specific geometric conditions. 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 specification and ecology

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%

Sustainability

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: 030189-2026

Quick Unit Converter

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The ring magnet with a hole MP 20x8x6 / N38 is created for permanent mounting, where glue might fail or be insufficient. Thanks to the hole (often for a screw), this model enables easy screwing to wood, wall, plastic, or metal. This product with a force of 7.22 kg works great as a cabinet closure, 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 great sensitivity. We recommend tightening manually with a screwdriver, not an impact driver, because too much pressure will cause the ring to crack. 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.

Moisture can penetrate micro-cracks in the coating and cause oxidation of the magnet. In the place of the mounting hole, the coating is thinner and can be damaged when tightening the screw, which will become a corrosion focus. This product is dedicated for indoor use. For outdoor applications, we recommend choosing rubberized holders or additional protection with varnish.

A screw or bolt with a thread diameter smaller than 8 mm fits this model. For magnets with a straight hole, a conical head can act like a wedge and burst the magnet. Aesthetic mounting requires selecting the appropriate head size.

This model is characterized by dimensions Ø20x6 mm and a weight of 11.88 g. The key parameter here is the lifting capacity amounting to approximately 7.22 kg (force ~70.81 N). The mounting hole diameter is precisely 8 mm.

These magnets are magnetized axially (through the thickness), which means one flat side is the N pole and the other is S. If you want two such magnets screwed with cones facing each other (faces) to attract, you must connect them with opposite poles (N to S). When ordering a larger quantity, magnets are usually packed in stacks, where they are already naturally paired.

Advantages as well as disadvantages of Nd₂Fe₁₄B magnets.

Benefits

Besides their magnetic performance, neodymium magnets are valued for these benefits:

They retain magnetic properties for almost ten years – the loss is just ~1% (according to analyses),
Neodymium magnets are characterized by extremely resistant to loss of magnetic properties caused by magnetic disturbances,
By using a smooth layer of gold, the element gains an modern look,
The surface of neodymium magnets generates a powerful magnetic field – this is one of their assets,
Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
Due to the possibility of free shaping and customization to custom projects, magnetic components can be produced in a wide range of shapes and sizes, which amplifies use scope,
Key role in modern technologies – they serve a role in computer drives, brushless drives, medical devices, as well as complex engineering applications.
Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Weaknesses

Problematic aspects of neodymium magnets and ways of using them

Susceptibility to cracking is one of their disadvantages. Upon intense impact they can fracture. We advise keeping them in a strong case, which not only protects them against impacts but also increases their durability
Neodymium 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 extremely resistant to heat
When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which prevent oxidation and corrosion.
Due to limitations in realizing threads and complicated forms in magnets, we propose using a housing - magnetic mechanism.
Potential hazard to health – tiny shards of magnets are risky, in case of ingestion, which becomes key in the aspect of protecting the youngest. Furthermore, small elements of these products can be problematic in diagnostics medical after entering the body.
Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Pull force analysis

Best holding force of the magnet in ideal parameters – what contributes to it?

Information about lifting capacity was determined for the most favorable conditions, taking into account:

using a sheet made of mild steel, functioning as a circuit closing element
possessing a massiveness of minimum 10 mm to avoid saturation
with a surface perfectly flat
under conditions of gap-free contact (metal-to-metal)
during detachment in a direction vertical to the mounting surface
at temperature approx. 20 degrees Celsius

Lifting capacity in practice – influencing factors

Please note that the application force will differ influenced by elements below, starting with the most relevant:

Space between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by varnish or unevenness) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
Pull-off angle – remember that the magnet holds strongest perpendicularly. Under shear forces, the holding force drops significantly, often to levels of 20-30% of the maximum value.
Wall thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field penetrates through instead of generating force.
Material composition – different alloys reacts the same. High carbon content worsen the attraction effect.
Plate texture – ground elements guarantee perfect abutment, which increases field saturation. Rough surfaces weaken the grip.
Thermal factor – hot environment reduces magnetic field. Exceeding the limit temperature can permanently damage the magnet.

Holding force was tested on the plate surface of 20 mm thickness, when a perpendicular force was applied, whereas under attempts to slide the magnet the holding force is lower. In addition, even a small distance between the magnet’s surface and the plate reduces the lifting capacity.

Safety rules for work with neodymium magnets

Health Danger

Life threat: Neodymium magnets can deactivate pacemakers and defibrillators. Stay away if you have electronic implants.

Do not drill into magnets

Drilling and cutting of neodymium magnets poses a fire risk. Neodymium dust oxidizes rapidly with oxygen and is difficult to extinguish.

Safe operation

Before use, read the rules. Uncontrolled attraction can destroy the magnet or hurt your hand. Be predictive.

Power loss in heat

Avoid heat. NdFeB magnets are sensitive to temperature. If you require operation above 80°C, ask us about special high-temperature series (H, SH, UH).

Eye protection

NdFeB magnets are sintered ceramics, meaning they are very brittle. Clashing of two magnets leads to them breaking into small pieces.

Threat to electronics

Do not bring magnets near a wallet, computer, or TV. The magnetism can permanently damage these devices and wipe information from cards.

Metal Allergy

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

Phone sensors

Navigation devices and mobile phones are highly susceptible to magnetic fields. Direct contact with a powerful NdFeB magnet can decalibrate the sensors in your phone.

Crushing force

Watch your fingers. Two large magnets will snap together instantly with a force of several hundred kilograms, destroying everything in their path. Be careful!

Adults only

Always keep magnets out of reach of children. Risk of swallowing is significant, and the consequences of magnets connecting inside the body are very dangerous.

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

MP 20x8x6 / N38 - ring magnet

Product card - MP 20x8x6 / N38 - ring magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical simulation of the product - technical parameters

Table 1: Static force (force vs gap) - characteristics MP 20x8x6 / N38

Table 2: Vertical load (vertical surface) MP 20x8x6 / N38

Table 3: Vertical assembly (sliding) - vertical pull MP 20x8x6 / N38

Table 4: Steel thickness (saturation) - sheet metal selection MP 20x8x6 / N38

Table 5: Working in heat (stability) - power drop MP 20x8x6 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field range MP 20x8x6 / N38

Table 7: Safety (HSE) (implants) - precautionary measures MP 20x8x6 / N38

Table 8: Impact energy (cracking risk) - warning MP 20x8x6 / N38

Table 9: Corrosion resistance MP 20x8x6 / N38

Table 10: Construction data (Pc) MP 20x8x6 / N38

Table 11: Underwater work (magnet fishing) MP 20x8x6 / N38

1. Sliding resistance

2. Steel thickness impact

3. Power loss vs temp

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

Chemical composition

Sustainability

Pulling force

Field Strength

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Advantages as well as disadvantages of Nd2Fe14B magnets.

Benefits

Weaknesses

Pull force analysis

Best holding force of the magnet in ideal parameters – what contributes to it?

Lifting capacity in practice – influencing factors

Safety rules for work with neodymium magnets

Health Danger

Do not drill into magnets

Safe operation

Power loss in heat

Eye protection

Threat to electronics

Metal Allergy

Phone sensors

Crushing force

Adults only

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs gap) - characteristics
MP 20x8x6 / N38

Table 2: Vertical load (vertical surface)
MP 20x8x6 / N38

Table 3: Vertical assembly (sliding) - vertical pull
MP 20x8x6 / N38

Table 4: Steel thickness (saturation) - sheet metal selection
MP 20x8x6 / N38

Table 5: Working in heat (stability) - power drop
MP 20x8x6 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field range
MP 20x8x6 / N38

Table 7: Safety (HSE) (implants) - precautionary measures
MP 20x8x6 / N38

Table 8: Impact energy (cracking risk) - warning
MP 20x8x6 / N38

Table 9: Corrosion resistance
MP 20x8x6 / N38

Table 10: Construction data (P_c)
MP 20x8x6 / N38

Table 11: Underwater work (magnet fishing)
MP 20x8x6 / N38

Advantages as well as disadvantages of Nd₂Fe₁₄B magnets.