Product available Ships tomorrow

MP 25x8x20 / 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 030450

GTIN/EAN: 5906301812340

5.00

Diameter

25 mm [±0,1 mm]

internal diameter Ø

8 mm [±0,1 mm]

Height

20 mm [±0,1 mm]

Weight

66.09 g

Magnetization Direction

↑ axial

Load capacity

19.02 kg / 186.54 N

Magnetic Induction

525.50 mT / 5255 Gs

Coating

[NiCuNi] Nickel

check technical data »

41.71 ZŁ with VAT / pcs + price for transport

33.91 ZŁ net + 23% VAT / pcs

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Carbon Footprint – environmental impact GPSR Regulation – product safety

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Product card - MP 25x8x20 / N38 - ring magnet

Specification / characteristics - MP 25x8x20 / N38 - ring magnet

properties

properties	values
Cat. no.	030450
GTIN/EAN	5906301812340
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	25 mm [±0,1 mm]
internal diameter Ø	8 mm [±0,1 mm]
Height	20 mm [±0,1 mm]
Weight	66.09 g
Magnetization Direction	↑ axial
Load capacity ~ ?	19.02 kg / 186.54 N
Magnetic Induction ~ ?	525.50 mT / 5255 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MP 25x8x20 / 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 modeling of the product - technical parameters

Presented data are the result of a engineering analysis. Results rely on algorithms for the class Nd₂Fe₁₄B. Operational performance may differ. Use these calculations as a supplementary guide when designing systems.

Table 1: Static pull force (force vs gap) - interaction chart
MP 25x8x20 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	5777 Gs 577.7 mT	19.02 kg / 41.93 pounds 19020.0 g / 186.6 N	crushing
1 mm	5310 Gs 531.0 mT	16.07 kg / 35.42 pounds 16067.7 g / 157.6 N	crushing
2 mm	4846 Gs 484.6 mT	13.38 kg / 29.50 pounds 13380.1 g / 131.3 N	crushing
3 mm	4397 Gs 439.7 mT	11.02 kg / 24.29 pounds 11019.3 g / 108.1 N	crushing
5 mm	3576 Gs 357.6 mT	7.29 kg / 16.07 pounds 7287.1 g / 71.5 N	strong
10 mm	2073 Gs 207.3 mT	2.45 kg / 5.40 pounds 2448.1 g / 24.0 N	strong
15 mm	1231 Gs 123.1 mT	0.86 kg / 1.90 pounds 863.8 g / 8.5 N	low risk
20 mm	773 Gs 77.3 mT	0.34 kg / 0.75 pounds 340.1 g / 3.3 N	low risk
30 mm	356 Gs 35.6 mT	0.07 kg / 0.16 pounds 72.1 g / 0.7 N	low risk
50 mm	115 Gs 11.5 mT	0.01 kg / 0.02 pounds 7.5 g / 0.1 N	low risk

Pulling power drops significantly with every mm of gap. Note that even a very thin break (e.g., dirt, paint, dust) strongly reduces the pull force. Magnetic products work most effectively during direct contact; air break drastically cuts the power. Observe how quickly the parameters drop, when the product does not adhere flatly to the steel surface. When calculating the assembly, discard unnecessary gaps.

Table 2: Slippage capacity (wall)
MP 25x8x20 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	3.80 kg / 8.39 pounds 3804.0 g / 37.3 N
1 mm	Stal (~0.2)	3.21 kg / 7.09 pounds 3214.0 g / 31.5 N
2 mm	Stal (~0.2)	2.68 kg / 5.90 pounds 2676.0 g / 26.3 N
3 mm	Stal (~0.2)	2.20 kg / 4.86 pounds 2204.0 g / 21.6 N
5 mm	Stal (~0.2)	1.46 kg / 3.21 pounds 1458.0 g / 14.3 N
10 mm	Stal (~0.2)	0.49 kg / 1.08 pounds 490.0 g / 4.8 N
15 mm	Stal (~0.2)	0.17 kg / 0.38 pounds 172.0 g / 1.7 N
20 mm	Stal (~0.2)	0.07 kg / 0.15 pounds 68.0 g / 0.7 N
30 mm	Stal (~0.2)	0.01 kg / 0.03 pounds 14.0 g / 0.1 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 2.0 g / 0.0 N

This section defines the approximate holding capacity needed to cause the slippage of the magnet vertically along a upright steel wall (considering standard friction coefficient). This value depends on the distance between the magnet and the surface.

Table 3: Wall mounting (sliding) - vertical pull
MP 25x8x20 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	5.71 kg / 12.58 pounds 5706.0 g / 56.0 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	3.80 kg / 8.39 pounds 3804.0 g / 37.3 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	1.90 kg / 4.19 pounds 1902.0 g / 18.7 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	9.51 kg / 20.97 pounds 9510.0 g / 93.3 N

When placing a element on a vertical wall (e.g., a fridge), it will maintain only approx. 20%-30% of its maximum pull force. Gravitational force as well as a low friction coefficient influence the fact that products slide down easier than they pop off the substrate. Want to create a wall mount? Note that the shear force is noticeably lower than the maximum static pull force. On a painted metal, the holder will slip down under a much lighter weight. Using a rubber coating can significantly increase the grip.

Table 4: Material efficiency (saturation) - sheet metal selection
MP 25x8x20 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	5%	0.95 kg / 2.10 pounds 951.0 g / 9.3 N
1 mm	13%	2.38 kg / 5.24 pounds 2377.5 g / 23.3 N
2 mm	25%	4.76 kg / 10.48 pounds 4755.0 g / 46.6 N
3 mm	38%	7.13 kg / 15.72 pounds 7132.5 g / 70.0 N
5 mm	63%	11.89 kg / 26.21 pounds 11887.5 g / 116.6 N
10 mm	100%	19.02 kg / 41.93 pounds 19020.0 g / 186.6 N
11 mm	100%	19.02 kg / 41.93 pounds 19020.0 g / 186.6 N
12 mm	100%	19.02 kg / 41.93 pounds 19020.0 g / 186.6 N

A too thin steel cannot focus the full magnetic flux, which weakens actual performance of the magnet. Should you mount a strong magnet to a weak sheet, the field will pass right through and the holding will be smaller. To utilize the maximum of this magnet's power, you need a suitably thick piece of steel. The material oversaturation means that on thin elements (e.g., car bodies), the product holds weaker. We recommend selecting the steel cross-section according to the table below.

Table 5: Thermal stability (material behavior) - resistance threshold
MP 25x8x20 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	19.02 kg / 41.93 pounds 19020.0 g / 186.6 N	OK
40 °C	-2.2%	18.60 kg / 41.01 pounds 18601.6 g / 182.5 N	OK
60 °C	-4.4%	18.18 kg / 40.09 pounds 18183.1 g / 178.4 N	OK
80 °C	-6.6%	17.76 kg / 39.16 pounds 17764.7 g / 174.3 N
100 °C	-28.8%	13.54 kg / 29.86 pounds 13542.2 g / 132.8 N

Classic neodymiums change their properties power above the temperature limit. Protect against heat – excessive heat can irreversibly destroy this magnet. With every degree above norm, the magnet's capacity momentarily decreases. Avoid using this product close to heaters higher than its safe range. Exceeding the critical threshold will result in destruction of magnetic properties.

*Important note: Heat tolerance is determined by both grade, and the Permeance Coefficient Pc. Thin magnets (low permeance coefficient) may lose charge permanently at lower temperatures than taller cylinders. Red status in the table points to permanent field degradation for this particular item.

Table 6: Magnet-Magnet interaction (repulsion) - forces in the system
MP 25x8x20 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Strength (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	30.91 kg / 68.14 pounds 6 082 Gs	4.64 kg / 10.22 pounds 4636 g / 45.5 N	N/A
1 mm	28.48 kg / 62.79 pounds 11 091 Gs	4.27 kg / 9.42 pounds 4272 g / 41.9 N	25.63 kg / 56.51 pounds ~0 Gs
2 mm	26.11 kg / 57.57 pounds 10 620 Gs	3.92 kg / 8.63 pounds 3917 g / 38.4 N	23.50 kg / 51.81 pounds ~0 Gs
3 mm	23.86 kg / 52.61 pounds 10 153 Gs	3.58 kg / 7.89 pounds 3580 g / 35.1 N	21.48 kg / 47.35 pounds ~0 Gs
5 mm	19.76 kg / 43.56 pounds 9 238 Gs	2.96 kg / 6.53 pounds 2964 g / 29.1 N	17.78 kg / 39.20 pounds ~0 Gs
10 mm	11.84 kg / 26.11 pounds 7 152 Gs	1.78 kg / 3.92 pounds 1776 g / 17.4 N	10.66 kg / 23.50 pounds ~0 Gs
20 mm	3.98 kg / 8.77 pounds 4 145 Gs	0.60 kg / 1.32 pounds 597 g / 5.9 N	3.58 kg / 7.89 pounds ~0 Gs
50 mm	0.24 kg / 0.54 pounds 1 024 Gs	0.04 kg / 0.08 pounds 36 g / 0.4 N	0.22 kg / 0.48 pounds ~0 Gs
60 mm	0.12 kg / 0.26 pounds 712 Gs	0.02 kg / 0.04 pounds 18 g / 0.2 N	0.11 kg / 0.23 pounds ~0 Gs
70 mm	0.06 kg / 0.13 pounds 514 Gs	0.01 kg / 0.02 pounds 9 g / 0.1 N	0.06 kg / 0.12 pounds ~0 Gs
80 mm	0.03 kg / 0.07 pounds 383 Gs	0.01 kg / 0.01 pounds 5 g / 0.1 N	0.03 kg / 0.07 pounds ~0 Gs
90 mm	0.02 kg / 0.04 pounds 293 Gs	0.00 kg / 0.01 pounds 3 g / 0.0 N	0.02 kg / 0.04 pounds ~0 Gs
100 mm	0.01 kg / 0.03 pounds 230 Gs	0.00 kg / 0.00 pounds 2 g / 0.0 N	0.01 kg / 0.02 pounds ~0 Gs

Two strong neodymiums interact from a significantly greater distance than a magnet and steel combination. Such a system of two magnets creates a more powerful interaction and a further horizon of action. Planning to create a solid fastener? Use a pair of magnets instead of a neodymium and a striker plate. Be careful that when attracting two neodymiums, the collision energy is massive. The levitation is slightly lower than the attraction, but still significant.
*The magnetic induction in repulsion mode reaches ~0 Gs at the geometric center of the gap (due to field cancellation).
Attention: Figures refer to friction force of two matching magnets (friction ~0.15 for Ni-Ni layer).

Table 7: Safety (HSE) (implants) - precautionary measures
MP 25x8x20 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	17.0 cm
Hearing aid	10 Gs (1.0 mT)	13.5 cm
Mechanical watch	20 Gs (2.0 mT)	10.5 cm
Mobile device	40 Gs (4.0 mT)	8.0 cm
Remote	50 Gs (5.0 mT)	7.5 cm
Payment card	400 Gs (40.0 mT)	3.0 cm
HDD hard drive	600 Gs (60.0 mT)	2.5 cm

Powerful magnet radiation is a real danger to IT equipment and pacemakers. These NdFeB products produce a field that destroys function of digital equipment. Be aware: the invisible magnetic field penetrates the body and housings. Exceptional care must be taken by people with hearing aids and drug dispensers. The risk also applies to: mechanical watches, car keys, membranes, and displays. Do not bring the product near payment cards, HDD media, or precise measuring instruments.

Table 8: Collisions (kinetic energy) - collision effects
MP 25x8x20 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	18.43 km/h (5.12 m/s)	0.87 J
30 mm	29.70 km/h (8.25 m/s)	2.25 J
50 mm	38.27 km/h (10.63 m/s)	3.73 J
100 mm	54.10 km/h (15.03 m/s)	7.46 J

Neodymium magnets are delicate – a violent impact against metal risks their cracking. Control the attraction moment – a magnet released freely becomes dangerous. Impact energy can destroy the magnet or injury to fingers. Be sure to control the product during mounting so it doesn't slam with momentum against the metal. A contact at a velocity of dozens of km/h almost guarantees destruction of the neodymium. Wear eye protection when working with large magnets.

Table 9: Anti-corrosion coating durability
MP 25x8x20 / 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. Note the thickness of the protective layer.

Table 10: Construction data (Flux)
MP 25x8x20 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	10 108 Mx	101.1 µWb
P_c Coefficient	1.25	High (Stable)

Flux value emitted by the pole surface. Key data for generator designers and motors. P_c value determines the magnet's operating point.

Table 11: Physics of underwater searching
MP 25x8x20 / N38

Environment	Effective steel pull	Effect
Air (land)	19.02 kg	Standard
Water (riverbed)	21.78 kg (+2.76 kg buoyancy gain)	+14.5%

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

In water, the magnet feels stronger thanks to Archimedes' principle. Buoyancy helps in lifting finds.

1. Sliding resistance

*Warning: On a vertical surface, the magnet holds just approx. 20-30% of its nominal pull.

2. Steel thickness impact

*Thin metal sheet (e.g. computer case) drastically limits the holding force.

3. Heat tolerance

*For standard magnets, the max working temp is 80°C.

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 1.25

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.

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%

Environmental data

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: 030450-2026

Magnet Unit Converter

Magnet pull force

Kilograms (kg)

Pounds (lbs)

Field Strength

Gauss (Gs)

Tesla (T)

Enter data into any field, and the remaining fields change in real-time.

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The ring magnet with a hole MP 25x8x20 / N38 is created for mechanical fastening, where glue might fail or be insufficient. Mounting is clean and reversible, unlike gluing. It is also often used in advertising for fixing signs and in workshops for organizing tools.

This material behaves more like porcelain than steel, so it doesn't forgive mistakes during mounting. One turn too many can destroy the magnet, so do it slowly. The flat screw head should evenly press the magnet. 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 inside building use. For outdoor applications, we recommend choosing magnets in hermetic housing or additional protection with varnish.

A screw or bolt with a thread diameter smaller than 8 mm fits this model. If the magnet does not have a chamfer (cone), we recommend using a screw with a flat or cylindrical head, or possibly using a washer. Always check that the screw head is not larger than the outer diameter of the magnet (25 mm), so it doesn't protrude beyond the outline.

It is a magnetic ring with a diameter of 25 mm and thickness 20 mm. The pulling force of this model is an impressive 19.02 kg, which translates to 186.54 N in newtons. The mounting hole diameter is precisely 8 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. 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

In addition to their magnetic efficiency, neodymium magnets provide the following advantages:

They virtually do not lose power, because even after ten years the decline in efficiency is only ~1% (based on calculations),
Neodymium magnets are characterized by exceptionally resistant to magnetic field loss caused by external field sources,
The use of an aesthetic coating of noble metals (nickel, gold, silver) causes the element to present itself better,
Neodymium magnets deliver maximum magnetic induction on a their surface, which allows for strong attraction,
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...
Thanks to flexibility in designing and the ability to adapt to unusual requirements,
Universal use in electronics industry – they are used in computer drives, electromotive mechanisms, medical equipment, also industrial machines.
Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Disadvantages

Disadvantages of NdFeB magnets:

They are prone to damage upon too strong impacts. To avoid cracks, it is worth securing magnets in special housings. Such protection not only shields the magnet but also improves its resistance to damage
When exposed to high temperature, neodymium magnets suffer a drop in strength. Often, when the temperature exceeds 80°C, their power decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
When exposed to humidity, magnets usually rust. To use them in conditions outside, it is recommended to use protective magnets, such as those in rubber or plastics, which prevent oxidation and corrosion.
Due to limitations in producing nuts and complicated forms in magnets, we recommend using casing - magnetic holder.
Potential hazard related to microscopic parts of magnets can be dangerous, if swallowed, which gains importance in the context of child safety. It is also worth noting that small elements of these devices can be problematic in diagnostics medical when they are in the body.
Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Lifting parameters

Magnetic strength at its maximum – what affects it?

The force parameter is a measurement result performed under specific, ideal conditions:

with the contact of a yoke made of low-carbon steel, guaranteeing maximum field concentration
with a cross-section no less than 10 mm
with an polished touching surface
without any insulating layer between the magnet and steel
during detachment in a direction vertical to the plane
at temperature room level

Magnet lifting force in use – key factors

Holding efficiency is influenced by specific conditions, mainly (from most important):

Gap between surfaces – even a fraction of a millimeter of distance (caused e.g. by varnish or unevenness) diminishes the pulling force, often by half at just 0.5 mm.
Pull-off angle – remember that the magnet has greatest strength perpendicularly. Under shear forces, the holding force drops drastically, often to levels of 20-30% of the nominal value.
Wall thickness – thin material does not allow full use of the magnet. Part of the magnetic field penetrates through instead of converting into lifting capacity.
Metal type – different alloys attracts identically. High carbon content worsen the attraction effect.
Surface condition – ground elements guarantee perfect abutment, which increases force. Uneven metal weaken the grip.
Operating temperature – 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 testing was carried out on plates with a smooth surface of suitable thickness, under a perpendicular pulling force, in contrast under shearing force the holding force is lower. Additionally, even a slight gap between the magnet’s surface and the plate decreases the holding force.

Precautions when working with NdFeB magnets

Metal Allergy

Nickel alert: The Ni-Cu-Ni coating consists of nickel. If redness occurs, cease working with magnets and use protective gear.

Caution required

Handle magnets consciously. Their huge power can surprise even experienced users. Stay alert and respect their power.

Adults only

Product intended for adults. Small elements pose a choking risk, leading to serious injuries. Store out of reach of kids and pets.

Electronic devices

Very strong magnetic fields can destroy records on credit cards, HDDs, and other magnetic media. Maintain a gap of min. 10 cm.

Warning for heart patients

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

Crushing risk

Risk of injury: The attraction force is so great that it can cause hematomas, crushing, and even bone fractures. Protective gloves are recommended.

Keep away from electronics

Remember: neodymium magnets generate a field that interferes with sensitive sensors. Keep a safe distance from your mobile, tablet, and GPS.

Magnets are brittle

Neodymium magnets are ceramic materials, meaning they are prone to chipping. Impact of two magnets will cause them breaking into small pieces.

Machining danger

Powder produced during machining of magnets is flammable. Avoid drilling into magnets without proper cooling and knowledge.

Permanent damage

Watch the temperature. Heating the magnet to high heat will ruin its magnetic structure and pulling force.

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

MP 25x8x20 / N38 - ring magnet

Product card - MP 25x8x20 / N38 - ring magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical modeling of the product - technical parameters

Table 1: Static pull force (force vs gap) - interaction chart MP 25x8x20 / N38

Table 2: Slippage capacity (wall) MP 25x8x20 / N38

Table 3: Wall mounting (sliding) - vertical pull MP 25x8x20 / N38

Table 4: Material efficiency (saturation) - sheet metal selection MP 25x8x20 / N38

Table 5: Thermal stability (material behavior) - resistance threshold MP 25x8x20 / N38

Table 6: Magnet-Magnet interaction (repulsion) - forces in the system MP 25x8x20 / N38

Table 7: Safety (HSE) (implants) - precautionary measures MP 25x8x20 / N38

Table 8: Collisions (kinetic energy) - collision effects MP 25x8x20 / N38

Table 9: Anti-corrosion coating durability MP 25x8x20 / N38

Table 10: Construction data (Flux) MP 25x8x20 / N38

Table 11: Physics of underwater searching MP 25x8x20 / N38

1. Sliding resistance

2. Steel thickness impact

3. Heat tolerance

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

Material specification

Environmental data

Magnet pull force

Field Strength

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Advantages as well as disadvantages of Nd2Fe14B magnets.

Benefits

Disadvantages

Lifting parameters

Magnetic strength at its maximum – what affects it?

Magnet lifting force in use – key factors

Precautions when working with NdFeB magnets

Metal Allergy

Caution required

Adults only

Electronic devices

Warning for heart patients

Crushing risk

Keep away from electronics

Magnets are brittle

Machining danger

Permanent damage

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs gap) - interaction chart
MP 25x8x20 / N38

Table 2: Slippage capacity (wall)
MP 25x8x20 / N38

Table 3: Wall mounting (sliding) - vertical pull
MP 25x8x20 / N38

Table 4: Material efficiency (saturation) - sheet metal selection
MP 25x8x20 / N38

Table 5: Thermal stability (material behavior) - resistance threshold
MP 25x8x20 / N38

Table 6: Magnet-Magnet interaction (repulsion) - forces in the system
MP 25x8x20 / N38

Table 7: Safety (HSE) (implants) - precautionary measures
MP 25x8x20 / N38

Table 8: Collisions (kinetic energy) - collision effects
MP 25x8x20 / N38

Table 9: Anti-corrosion coating durability
MP 25x8x20 / N38

Table 10: Construction data (Flux)
MP 25x8x20 / N38

Table 11: Physics of underwater searching
MP 25x8x20 / N38

Advantages as well as disadvantages of Nd₂Fe₁₄B magnets.