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MP 25x13x8 / N38 - ring magnet

Name: Dhit sp. z o.o.
Address: Kościuszki 6A, Ożarów Mazowiecki, mazowieckie, 05-850, PL
Telephone: +48 22 499 98 98
Price range: 1-6500 PLN
Rating: 5

ring magnet

Catalog no 030191

GTIN/EAN: 5906301812081

5.00

Diameter

25 mm [±0,1 mm]

internal diameter Ø

13 mm [±0,1 mm]

Height

8 mm [±0,1 mm]

Weight

21.49 g

Magnetization Direction

↑ axial

Load capacity

10.49 kg / 102.90 N

Magnetic Induction

334.09 mT / 3341 Gs

Coating

[NiCuNi] Nickel

view properties »

13.53 ZŁ with VAT / pcs + price for transport

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Product card - MP 25x13x8 / N38 - ring magnet

Specification / characteristics - MP 25x13x8 / N38 - ring magnet

properties

properties	values
Cat. no.	030191
GTIN/EAN	5906301812081
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	13 mm [±0,1 mm]
Height	8 mm [±0,1 mm]
Weight	21.49 g
Magnetization Direction	↑ axial
Load capacity ~ ?	10.49 kg / 102.90 N
Magnetic Induction ~ ?	334.09 mT / 3341 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MP 25x13x8 / 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 assembly - report

These values are the outcome of a mathematical simulation. Results are based on models for the material Nd₂Fe₁₄B. Actual conditions may differ from theoretical values. Please consider these data as a preliminary roadmap for designers.

Table 1: Static pull force (pull vs distance) - power drop
MP 25x13x8 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	5777 Gs 577.7 mT	10.49 kg / 23.13 LBS 10490.0 g / 102.9 N	crushing
1 mm	5310 Gs 531.0 mT	8.86 kg / 19.54 LBS 8861.7 g / 86.9 N	warning
2 mm	4846 Gs 484.6 mT	7.38 kg / 16.27 LBS 7379.4 g / 72.4 N	warning
3 mm	4397 Gs 439.7 mT	6.08 kg / 13.40 LBS 6077.4 g / 59.6 N	warning
5 mm	3576 Gs 357.6 mT	4.02 kg / 8.86 LBS 4019.0 g / 39.4 N	warning
10 mm	2073 Gs 207.3 mT	1.35 kg / 2.98 LBS 1350.2 g / 13.2 N	weak grip
15 mm	1231 Gs 123.1 mT	0.48 kg / 1.05 LBS 476.4 g / 4.7 N	weak grip
20 mm	773 Gs 77.3 mT	0.19 kg / 0.41 LBS 187.6 g / 1.8 N	weak grip
30 mm	356 Gs 35.6 mT	0.04 kg / 0.09 LBS 39.8 g / 0.4 N	weak grip
50 mm	115 Gs 11.5 mT	0.00 kg / 0.01 LBS 4.1 g / 0.0 N	weak grip

Grip strength weakens drastically with every mm of spacing. Note that every additional insulation layer (e.g., contamination, varnish, rust) noticeably diminishes the holding power. Magnets operate strongest during direct contact; air break drastically cuts the power. Notice how quickly the pull force fall, when the magnet does not touch directly to the metal substrate. When designing the mounting, eliminate redundant distances.

Table 2: Sliding capacity (vertical surface)
MP 25x13x8 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	2.10 kg / 4.63 LBS 2098.0 g / 20.6 N
1 mm	Stal (~0.2)	1.77 kg / 3.91 LBS 1772.0 g / 17.4 N
2 mm	Stal (~0.2)	1.48 kg / 3.25 LBS 1476.0 g / 14.5 N
3 mm	Stal (~0.2)	1.22 kg / 2.68 LBS 1216.0 g / 11.9 N
5 mm	Stal (~0.2)	0.80 kg / 1.77 LBS 804.0 g / 7.9 N
10 mm	Stal (~0.2)	0.27 kg / 0.60 LBS 270.0 g / 2.6 N
15 mm	Stal (~0.2)	0.10 kg / 0.21 LBS 96.0 g / 0.9 N
20 mm	Stal (~0.2)	0.04 kg / 0.08 LBS 38.0 g / 0.4 N
30 mm	Stal (~0.2)	0.01 kg / 0.02 LBS 8.0 g / 0.1 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 0.0 g / 0.0 N

This section indicates the theoretical shear load sufficient to cause the sliding of the magnet downwards against a vertical steel wall (assuming standard friction). This parameter is a function of the separation distance between the magnet and the metal.

Table 3: Vertical assembly (shearing) - vertical pull
MP 25x13x8 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	3.15 kg / 6.94 LBS 3147.0 g / 30.9 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	2.10 kg / 4.63 LBS 2098.0 g / 20.6 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	1.05 kg / 2.31 LBS 1049.0 g / 10.3 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	5.25 kg / 11.56 LBS 5245.0 g / 51.5 N

When hanging a element on a vertical surface (e.g., a board), it you can count on only about 1/5 of its maximum pull force. Gravity and a low friction coefficient influence the fact that magnets move down faster than they pull off. Designing a vertical fastening? Consider that the shear force is noticeably lower than the perpendicular breakaway force. On a smooth steel, the element will slip down under a significantly smaller cargo. Using a rubber pad can drastically raise the stability.

Table 4: Steel thickness (saturation) - sheet metal selection
MP 25x13x8 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	5%	0.52 kg / 1.16 LBS 524.5 g / 5.1 N
1 mm	13%	1.31 kg / 2.89 LBS 1311.3 g / 12.9 N
2 mm	25%	2.62 kg / 5.78 LBS 2622.5 g / 25.7 N
3 mm	38%	3.93 kg / 8.67 LBS 3933.8 g / 38.6 N
5 mm	63%	6.56 kg / 14.45 LBS 6556.3 g / 64.3 N
10 mm	100%	10.49 kg / 23.13 LBS 10490.0 g / 102.9 N
11 mm	100%	10.49 kg / 23.13 LBS 10490.0 g / 102.9 N
12 mm	100%	10.49 kg / 23.13 LBS 10490.0 g / 102.9 N

A too thin steel cannot focus the entire magnetic field, which wastes potential of the magnet. If you mount a strong magnet to a thin surface, the flux will penetrate right through and the pull force will drop sharply. To utilize full efficiency of this magnet's potential, you require a sufficiently solid element of metal. The material oversaturation causes that on thin elements (e.g., appliance housings), the product holds weaker. We recommend selecting the steel thickness based on the following data.

Table 5: Thermal stability (stability) - resistance threshold
MP 25x13x8 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	10.49 kg / 23.13 LBS 10490.0 g / 102.9 N	OK
40 °C	-2.2%	10.26 kg / 22.62 LBS 10259.2 g / 100.6 N	OK
60 °C	-4.4%	10.03 kg / 22.11 LBS 10028.4 g / 98.4 N	OK
80 °C	-6.6%	9.80 kg / 21.60 LBS 9797.7 g / 96.1 N
100 °C	-28.8%	7.47 kg / 16.47 LBS 7468.9 g / 73.3 N

Standard neodymium magnets change their properties power above the temperature limit. Avoid high temperatures – excessive heat can irreversibly demagnetize this product. With every degree above norm, the magnet's capacity temporarily drops. Refrain from using this product in hot environments higher than its working range. Too high temperature will result in permanent loss of magnetism.

*Engineering note: Thermal stability depends not only on the material grade, and the Permeance Coefficient Pc. Flat magnets (low Pc) are more susceptible to demagnetization sooner compared to rod magnets. Warning indicator in the table indicates a risk of irreversible loss for this particular item.

Table 6: Two magnets (repulsion) - forces in the system
MP 25x13x8 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Strength (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	77.07 kg / 169.90 LBS 6 082 Gs	11.56 kg / 25.49 LBS 11560 g / 113.4 N	N/A
1 mm	71.01 kg / 156.55 LBS 11 091 Gs	10.65 kg / 23.48 LBS 10652 g / 104.5 N	63.91 kg / 140.90 LBS ~0 Gs
2 mm	65.10 kg / 143.53 LBS 10 620 Gs	9.77 kg / 21.53 LBS 9766 g / 95.8 N	58.59 kg / 129.18 LBS ~0 Gs
3 mm	59.50 kg / 131.17 LBS 10 153 Gs	8.92 kg / 19.68 LBS 8925 g / 87.6 N	53.55 kg / 118.06 LBS ~0 Gs
5 mm	49.26 kg / 108.61 LBS 9 238 Gs	7.39 kg / 16.29 LBS 7389 g / 72.5 N	44.34 kg / 97.74 LBS ~0 Gs
10 mm	29.53 kg / 65.10 LBS 7 152 Gs	4.43 kg / 9.76 LBS 4429 g / 43.4 N	26.57 kg / 58.59 LBS ~0 Gs
20 mm	9.92 kg / 21.87 LBS 4 145 Gs	1.49 kg / 3.28 LBS 1488 g / 14.6 N	8.93 kg / 19.68 LBS ~0 Gs
50 mm	0.61 kg / 1.33 LBS 1 024 Gs	0.09 kg / 0.20 LBS 91 g / 0.9 N	0.54 kg / 1.20 LBS ~0 Gs
60 mm	0.29 kg / 0.64 LBS 712 Gs	0.04 kg / 0.10 LBS 44 g / 0.4 N	0.26 kg / 0.58 LBS ~0 Gs
70 mm	0.15 kg / 0.34 LBS 514 Gs	0.02 kg / 0.05 LBS 23 g / 0.2 N	0.14 kg / 0.30 LBS ~0 Gs
80 mm	0.08 kg / 0.19 LBS 383 Gs	0.01 kg / 0.03 LBS 13 g / 0.1 N	0.08 kg / 0.17 LBS ~0 Gs
90 mm	0.05 kg / 0.11 LBS 293 Gs	0.01 kg / 0.02 LBS 7 g / 0.1 N	0.04 kg / 0.10 LBS ~0 Gs
100 mm	0.03 kg / 0.07 LBS 230 Gs	0.00 kg / 0.01 LBS 5 g / 0.0 N	0.03 kg / 0.06 LBS ~0 Gs

Two magnets interact from a significantly greater distance than a neodymium and metal setup. The setup of two magnets produces a massive flux and a wider radius of operation. Want to build a powerful holder? Apply two magnets instead of one magnet and a steel. Exercise caution that when connecting a pair of magnets, the impact force is massive. The levitation is slightly lower than the connection force, but still impressive.
*The magnetic induction in repulsion mode is approximately ~0 Gs at the midpoint between the magnets (resulting from vector opposition).
* Results demonstrate shear force of two same neodymium magnets (friction ~0.15 for Ni-Ni layer).

Table 7: Protective zones (implants) - precautionary measures
MP 25x13x8 / 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
Timepiece	20 Gs (2.0 mT)	10.5 cm
Phone / Smartphone	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

Extremely neodym field is a real danger to electronics and pacemakers. These neodymiums produce a flux that disrupts operation of digital equipment. Notice: the invisible magnetic field penetrates the body and housings. Special caution must be taken by people with cochlear implants and drug dispensers. The risk also applies to: automatic timepieces, car keys, membranes, and displays. Do not bring the product near payment cards, hard drives, or sensitive navigation tools.

Table 8: Collisions (kinetic energy) - collision effects
MP 25x13x8 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	24.01 km/h (6.67 m/s)	0.48 J
30 mm	38.68 km/h (10.75 m/s)	1.24 J
50 mm	49.84 km/h (13.84 m/s)	2.06 J
100 mm	70.46 km/h (19.57 m/s)	4.12 J

Neodymium magnets are delicate – a strong collision with metal risks their cracking. Pay attention to connection velocity – a magnet released freely speeds with massive force. Striking energy can destroy the magnet or painful pinches to skin. Be sure to control the product during mounting so it doesn't hit with great force against the steel surface. A collision at high speed means shattering of the neodymium. Wear eye protection when playing with powerful specimens.

Table 9: Corrosion resistance
MP 25x13x8 / 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 SST (salt spray test) is an industry standard for determining coating lifespan in harsh conditions. Note the thickness of the protective layer.

Table 10: Electrical data (P_c)
MP 25x13x8 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	23 118 Mx	231.2 µWb
P_c Coefficient	1.04	High (Stable)

Flux value passing through the pole surface. Essential parameter in coil applications and motors. P_c value determines the magnet's operating point.

Table 11: Underwater work (magnet fishing)
MP 25x13x8 / N38

Environment	Effective steel pull	Effect
Air (land)	10.49 kg	Standard
Water (riverbed)	12.01 kg (+1.52 kg buoyancy gain)	+14.5%

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

Contrary to myths, water does not block the magnetic field. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Vertical hold

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

2. Steel saturation

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

3. Temperature resistance

*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) = 1.04

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

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%

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: 030191-2026

Quick Unit Converter

Force (pull)

Newtons (N)

Pounds (lbs)

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Induction (Gs)

Tesla (T)

Input a figure in just one field to see the conversion in all other units immediately.

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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. 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. It's a good idea to use a flexible washer 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. In the place of the mounting hole, the coating is thinner and easily scratched when tightening the screw, which will become a corrosion focus. If you must use it outside, paint it with anti-corrosion paint after mounting.

A screw or bolt with a thread diameter smaller than 13 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. Aesthetic mounting requires selecting the appropriate head size.

It is a magnetic ring with a diameter of 25 mm and thickness 8 mm. The key parameter here is the holding force amounting to approximately 10.49 kg (force ~102.90 N). The mounting hole diameter is precisely 13 mm.

The poles are located on the planes with holes, not on the sides of the ring. 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 and disadvantages of Nd₂Fe₁₄B magnets.

Pros

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

They do not lose magnetism, even after around 10 years – the drop in lifting capacity is only ~1% (theoretically),
Magnets effectively defend themselves against loss of magnetization caused by foreign field sources,
Thanks to the elegant finish, the plating of Ni-Cu-Ni, gold, or silver-plated gives an clean appearance,
Magnetic induction on the top side of the magnet is impressive,
Through (appropriate) combination of ingredients, they can achieve high thermal resistance, allowing for operation at temperatures reaching 230°C and above...
Possibility of exact creating and adjusting to precise applications,
Huge importance in future technologies – they are utilized in magnetic memories, electromotive mechanisms, medical devices, and modern systems.
Thanks to efficiency per cm³, small magnets offer high operating force, in miniature format,

Disadvantages

Disadvantages of neodymium magnets:

At strong impacts they can crack, therefore we advise placing them in special holders. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
Neodymium magnets lose their force under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
When exposed to humidity, magnets start to rust. To use them in conditions outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which prevent oxidation as well as corrosion.
We suggest a housing - magnetic holder, due to difficulties in producing threads inside the magnet and complex shapes.
Potential hazard to health – tiny shards of magnets can be dangerous, when accidentally swallowed, which gains importance in the context of child safety. Furthermore, small components of these magnets are able to be problematic in diagnostics medical after entering the body.
Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Lifting parameters

Breakaway strength of the magnet in ideal conditions – what contributes to it?

Holding force of 10.49 kg is a result of laboratory testing executed under specific, ideal conditions:

with the contact of a yoke made of low-carbon steel, ensuring full magnetic saturation
with a cross-section of at least 10 mm
with an ideally smooth touching surface
with total lack of distance (without coatings)
under axial force direction (90-degree angle)
at temperature room level

What influences lifting capacity in practice

Holding efficiency is influenced by working environment parameters, such as (from most important):

Gap between surfaces – even a fraction of a millimeter of separation (caused e.g. by varnish or unevenness) drastically reduces the pulling force, often by half at just 0.5 mm.
Force direction – declared lifting capacity refers to detachment vertically. When applying parallel force, the magnet holds significantly lower power (often approx. 20-30% of maximum force).
Base massiveness – too thin plate causes magnetic saturation, causing part of the power to be wasted into the air.
Chemical composition of the base – low-carbon steel gives the best results. Alloy steels reduce magnetic properties and holding force.
Smoothness – full contact is obtained only on smooth steel. Rough texture create air cushions, weakening the magnet.
Heat – NdFeB sinters have a sensitivity to temperature. At higher temperatures they lose power, and in frost they can be stronger (up to a certain limit).

Lifting capacity was determined with the use of a polished steel plate of suitable thickness (min. 20 mm), under vertically applied force, however under attempts to slide the magnet the holding force is lower. Additionally, even a minimal clearance between the magnet and the plate reduces the load capacity.

Precautions when working with NdFeB magnets

Avoid contact if allergic

It is widely known that nickel (the usual finish) is a common allergen. For allergy sufferers, avoid touching magnets with bare hands and select encased magnets.

ICD Warning

Warning for patients: Powerful magnets disrupt electronics. Keep minimum 30 cm distance or request help to handle the magnets.

Danger to the youngest

Adult use only. Tiny parts pose a choking risk, leading to serious injuries. Store away from kids and pets.

Bodily injuries

Danger of trauma: The attraction force is so great that it can result in hematomas, crushing, and broken bones. Use thick gloves.

Magnets are brittle

Despite the nickel coating, neodymium is delicate and cannot withstand shocks. Do not hit, as the magnet may shatter into hazardous fragments.

Safe distance

Do not bring magnets near a wallet, laptop, or screen. The magnetism can destroy these devices and wipe information from cards.

Do not underestimate power

Handle magnets consciously. Their powerful strength can shock even experienced users. Be vigilant and do not underestimate their force.

Dust is flammable

Drilling and cutting of NdFeB material poses a fire risk. Neodymium dust reacts violently with oxygen and is difficult to extinguish.

Precision electronics

Note: rare earth magnets generate a field that confuses sensitive sensors. Keep a separation from your mobile, tablet, and GPS.

Thermal limits

Keep cool. Neodymium magnets are sensitive to heat. If you require resistance above 80°C, inquire about HT versions (H, SH, UH).

Security! Details about hazards in the article: Magnet Safety Guide.

MP 25x13x8 / N38 - ring magnet

Product card - MP 25x13x8 / N38 - ring magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering simulation of the assembly - report

Table 1: Static pull force (pull vs distance) - power drop MP 25x13x8 / N38

Table 2: Sliding capacity (vertical surface) MP 25x13x8 / N38

Table 3: Vertical assembly (shearing) - vertical pull MP 25x13x8 / N38

Table 4: Steel thickness (saturation) - sheet metal selection MP 25x13x8 / N38

Table 5: Thermal stability (stability) - resistance threshold MP 25x13x8 / N38

Table 6: Two magnets (repulsion) - forces in the system MP 25x13x8 / N38

Table 7: Protective zones (implants) - precautionary measures MP 25x13x8 / N38

Table 8: Collisions (kinetic energy) - collision effects MP 25x13x8 / N38

Table 9: Corrosion resistance MP 25x13x8 / N38

Table 10: Electrical data (Pc) MP 25x13x8 / N38

Table 11: Underwater work (magnet fishing) MP 25x13x8 / N38

1. Vertical hold

2. Steel saturation

3. Temperature resistance

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

Elemental analysis

Environmental data

Force (pull)

Field Strength

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Advantages and disadvantages of Nd2Fe14B magnets.

Pros

Disadvantages

Lifting parameters

Breakaway strength of the magnet in ideal conditions – what contributes to it?

What influences lifting capacity in practice

Precautions when working with NdFeB magnets

Avoid contact if allergic

ICD Warning

Danger to the youngest

Bodily injuries

Magnets are brittle

Safe distance

Do not underestimate power

Dust is flammable

Precision electronics

Thermal limits

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (pull vs distance) - power drop
MP 25x13x8 / N38

Table 2: Sliding capacity (vertical surface)
MP 25x13x8 / N38

Table 3: Vertical assembly (shearing) - vertical pull
MP 25x13x8 / N38

Table 4: Steel thickness (saturation) - sheet metal selection
MP 25x13x8 / N38

Table 5: Thermal stability (stability) - resistance threshold
MP 25x13x8 / N38

Table 6: Two magnets (repulsion) - forces in the system
MP 25x13x8 / N38

Table 7: Protective zones (implants) - precautionary measures
MP 25x13x8 / N38

Table 8: Collisions (kinetic energy) - collision effects
MP 25x13x8 / N38

Table 9: Corrosion resistance
MP 25x13x8 / N38

Table 10: Electrical data (P_c)
MP 25x13x8 / N38

Table 11: Underwater work (magnet fishing)
MP 25x13x8 / N38

Advantages and disadvantages of Nd₂Fe₁₄B magnets.