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MP 25x5x27 / 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 030192

GTIN/EAN: 5906301812098

5.00

Diameter

25 mm [±0,1 mm]

internal diameter Ø

5 mm [±0,1 mm]

Height

27 mm [±0,1 mm]

Weight

95.43 g

Magnetization Direction

↑ axial

Load capacity

18.51 kg / 181.54 N

Magnetic Induction

562.34 mT / 5623 Gs

Coating

[NiCuNi] Nickel

technical specifications »

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Technical specification - MP 25x5x27 / N38 - ring magnet

Specification / characteristics - MP 25x5x27 / N38 - ring magnet

properties

properties	values
Cat. no.	030192
GTIN/EAN	5906301812098
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	5 mm [±0,1 mm]
Height	27 mm [±0,1 mm]
Weight	95.43 g
Magnetization Direction	↑ axial
Load capacity ~ ?	18.51 kg / 181.54 N
Magnetic Induction ~ ?	562.34 mT / 5623 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MP 25x5x27 / 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 - report

These information constitute the outcome of a mathematical analysis. Results were calculated on models for the class Nd₂Fe₁₄B. Real-world parameters might slightly deviate from the simulation results. Use these calculations as a preliminary roadmap during assembly planning.

Table 1: Static pull force (force vs gap) - power drop
MP 25x5x27 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	5716 Gs 571.6 mT	18.51 kg / 40.81 pounds 18510.0 g / 181.6 N	crushing
1 mm	5288 Gs 528.8 mT	15.84 kg / 34.92 pounds 15839.8 g / 155.4 N	crushing
2 mm	4861 Gs 486.1 mT	13.38 kg / 29.51 pounds 13384.0 g / 131.3 N	crushing
3 mm	4446 Gs 444.6 mT	11.20 kg / 24.69 pounds 11198.0 g / 109.9 N	crushing
5 mm	3677 Gs 367.7 mT	7.66 kg / 16.88 pounds 7657.5 g / 75.1 N	medium risk
10 mm	2216 Gs 221.6 mT	2.78 kg / 6.13 pounds 2782.1 g / 27.3 N	medium risk
15 mm	1354 Gs 135.4 mT	1.04 kg / 2.29 pounds 1037.8 g / 10.2 N	safe
20 mm	864 Gs 86.4 mT	0.42 kg / 0.93 pounds 423.3 g / 4.2 N	safe
30 mm	405 Gs 40.5 mT	0.09 kg / 0.21 pounds 93.1 g / 0.9 N	safe
50 mm	133 Gs 13.3 mT	0.01 kg / 0.02 pounds 10.0 g / 0.1 N	safe

Pulling power weakens drastically with every mm of spacing. Keep in mind that even a very thin break (e.g., dirt, paint, veneer) strongly diminishes the holding power. Neodymiums work strongest at the point of direct contact; distance drastically cuts the power. Observe how quickly the pull force drop, when the product does not adhere flatly to the metal substrate. When designing the assembly, discard additional spacers.

Table 2: Vertical load (vertical surface)
MP 25x5x27 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	3.70 kg / 8.16 pounds 3702.0 g / 36.3 N
1 mm	Stal (~0.2)	3.17 kg / 6.98 pounds 3168.0 g / 31.1 N
2 mm	Stal (~0.2)	2.68 kg / 5.90 pounds 2676.0 g / 26.3 N
3 mm	Stal (~0.2)	2.24 kg / 4.94 pounds 2240.0 g / 22.0 N
5 mm	Stal (~0.2)	1.53 kg / 3.38 pounds 1532.0 g / 15.0 N
10 mm	Stal (~0.2)	0.56 kg / 1.23 pounds 556.0 g / 5.5 N
15 mm	Stal (~0.2)	0.21 kg / 0.46 pounds 208.0 g / 2.0 N
20 mm	Stal (~0.2)	0.08 kg / 0.19 pounds 84.0 g / 0.8 N
30 mm	Stal (~0.2)	0.02 kg / 0.04 pounds 18.0 g / 0.2 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 2.0 g / 0.0 N

The following data calculates the theoretical force required to cause the sliding of the magnet vertically against a vertical metal surface (considering typical friction). The holding force depends on the gap size between the magnet and the surface.

Table 3: Wall mounting (shearing) - vertical pull
MP 25x5x27 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	5.55 kg / 12.24 pounds 5553.0 g / 54.5 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	3.70 kg / 8.16 pounds 3702.0 g / 36.3 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	1.85 kg / 4.08 pounds 1851.0 g / 18.2 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	9.26 kg / 20.40 pounds 9255.0 g / 90.8 N

When hanging a element on a vertical surface (e.g., a board), it will maintain only about 1/5 of its maximum pull force. Gravity and a weak degree of grip influence the fact that products move down easier than they detach. Planning a wall mount? Note that the sliding force is significantly lower than the maximum static pull force. On a painted metal, the element will slide down under a much lighter weight. Using a rubber coating can drastically improve the result.

Table 4: Material efficiency (substrate influence) - sheet metal selection
MP 25x5x27 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	5%	0.93 kg / 2.04 pounds 925.5 g / 9.1 N
1 mm	13%	2.31 kg / 5.10 pounds 2313.8 g / 22.7 N
2 mm	25%	4.63 kg / 10.20 pounds 4627.5 g / 45.4 N
3 mm	38%	6.94 kg / 15.30 pounds 6941.3 g / 68.1 N
5 mm	63%	11.57 kg / 25.50 pounds 11568.8 g / 113.5 N
10 mm	100%	18.51 kg / 40.81 pounds 18510.0 g / 181.6 N
11 mm	100%	18.51 kg / 40.81 pounds 18510.0 g / 181.6 N
12 mm	100%	18.51 kg / 40.81 pounds 18510.0 g / 181.6 N

A too thin steel is not enough to absorb the full magnetic flux, which squanders power of the magnet. Should you install a neodymium to a thin surface, the flux will pass right through and the holding will be smaller. To utilize the maximum of this neodymium's potential, you require a sufficiently solid backing of metal. The saturation effect causes that on thin elements (e.g., car bodies), the holder works worse. We advise picking the steel cross-section according to the table below.

Table 5: Thermal resistance (stability) - thermal limit
MP 25x5x27 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	18.51 kg / 40.81 pounds 18510.0 g / 181.6 N	OK
40 °C	-2.2%	18.10 kg / 39.91 pounds 18102.8 g / 177.6 N	OK
60 °C	-4.4%	17.70 kg / 39.01 pounds 17695.6 g / 173.6 N	OK
80 °C	-6.6%	17.29 kg / 38.11 pounds 17288.3 g / 169.6 N
100 °C	-28.8%	13.18 kg / 29.05 pounds 13179.1 g / 129.3 N

Ordinary NdFeB products change their properties parameters above the temperature limit. Protect against heat – high temperature can permanently damage this product. With every degree above norm, the magnet's capacity temporarily decreases. Avoid using this product near heat sources higher than its working range. Exceeding the critical threshold will cause destruction of magnetic properties.

*Important note: Thermal stability is determined by both grade, and the Permeance Coefficient Pc. Thin magnets (low Pc) risk losing magnetic properties at lower temperatures than long magnets. The danger warning in the table points to permanent field degradation for this particular item.

Table 6: Two magnets (repulsion) - field range
MP 25x5x27 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	13.99 kg / 30.83 pounds 6 064 Gs	2.10 kg / 4.62 pounds 2098 g / 20.6 N	N/A
1 mm	12.97 kg / 28.59 pounds 11 008 Gs	1.94 kg / 4.29 pounds 1945 g / 19.1 N	11.67 kg / 25.73 pounds ~0 Gs
2 mm	11.97 kg / 26.39 pounds 10 576 Gs	1.80 kg / 3.96 pounds 1795 g / 17.6 N	10.77 kg / 23.75 pounds ~0 Gs
3 mm	11.02 kg / 24.29 pounds 10 146 Gs	1.65 kg / 3.64 pounds 1652 g / 16.2 N	9.91 kg / 21.86 pounds ~0 Gs
5 mm	9.26 kg / 20.42 pounds 9 303 Gs	1.39 kg / 3.06 pounds 1389 g / 13.6 N	8.33 kg / 18.37 pounds ~0 Gs
10 mm	5.79 kg / 12.76 pounds 7 353 Gs	0.87 kg / 1.91 pounds 868 g / 8.5 N	5.21 kg / 11.48 pounds ~0 Gs
20 mm	2.10 kg / 4.63 pounds 4 432 Gs	0.32 kg / 0.70 pounds 315 g / 3.1 N	1.89 kg / 4.17 pounds ~0 Gs
50 mm	0.14 kg / 0.32 pounds 1 159 Gs	0.02 kg / 0.05 pounds 22 g / 0.2 N	0.13 kg / 0.29 pounds ~0 Gs
60 mm	0.07 kg / 0.16 pounds 811 Gs	0.01 kg / 0.02 pounds 11 g / 0.1 N	0.06 kg / 0.14 pounds ~0 Gs
70 mm	0.04 kg / 0.08 pounds 589 Gs	0.01 kg / 0.01 pounds 6 g / 0.1 N	0.03 kg / 0.07 pounds ~0 Gs
80 mm	0.02 kg / 0.05 pounds 440 Gs	0.00 kg / 0.01 pounds 3 g / 0.0 N	0.02 kg / 0.04 pounds ~0 Gs
90 mm	0.01 kg / 0.03 pounds 338 Gs	0.00 kg / 0.00 pounds 2 g / 0.0 N	0.01 kg / 0.02 pounds ~0 Gs
100 mm	0.01 kg / 0.02 pounds 265 Gs	0.00 kg / 0.00 pounds 1 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs

Two strong neodymiums attract each other from a much further distance than a magnet and sheet setup. The connection of magnet-to-magnet generates a stronger field and a larger range of action. Designing a powerful holder? Apply two magnets instead of one magnet and a steel. Be careful that when attracting two neodymiums, the pinch force is massive. The repulsion force is slightly lower than the attraction, but still large.
*The magnetic induction between like poles drops to ~0 Gs in the exact middle of the gap (due to field cancellation).
* Figures demonstrate sliding force of a pair of same neodymium magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Safety (HSE) (implants) - precautionary measures
MP 25x5x27 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	18.0 cm
Hearing aid	10 Gs (1.0 mT)	14.0 cm
Timepiece	20 Gs (2.0 mT)	11.0 cm
Mobile device	40 Gs (4.0 mT)	8.5 cm
Remote	50 Gs (5.0 mT)	7.5 cm
Payment card	400 Gs (40.0 mT)	3.5 cm
HDD hard drive	600 Gs (60.0 mT)	2.5 cm

Powerful magnet radiation poses a real danger to electronic devices and pacemakers. These magnets produce a field that destroys function of digital equipment. Notice: the unseen radiation acts through matter and housings. Exceptional care must be taken by people with cochlear implants and insulin pumps. Also at risk are: automatic timepieces, remotes, speakers, and displays. Do not bring the product near payment cards, hard drives, or precise measuring instruments.

Table 8: Collisions (cracking risk) - collision effects
MP 25x5x27 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	15.31 km/h (4.25 m/s)	0.86 J
30 mm	24.40 km/h (6.78 m/s)	2.19 J
50 mm	31.42 km/h (8.73 m/s)	3.63 J
100 mm	44.42 km/h (12.34 m/s)	7.26 J

Magnetic elements are prone to chipping – a strong collision with metal can result in shattering. Pay attention to connection velocity – a neodymium left loose turns into a projectile. Striking energy can cause material chips or dangerous crushing to fingers. Be sure to control the product during mounting so it doesn't hit with great force against the metal. A contact at a velocity of dozens of km/h almost guarantees destruction of the neodymium. Use safety goggles when handling with powerful specimens.

Table 9: Anti-corrosion coating durability
MP 25x5x27 / N38

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

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

Table 10: Electrical data (Flux)
MP 25x5x27 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	4 917 Mx	49.2 µWb
P_c Coefficient	1.40	High (Stable)

Total magnetic flux passing through the pole surface. Essential parameter for generator designers and motors. P_c value defines the magnet's operating point.

Table 11: Underwater work (magnet fishing)
MP 25x5x27 / N38

Environment	Effective steel pull	Effect
Air (land)	18.51 kg	Standard
Water (riverbed)	21.19 kg (+2.68 kg buoyancy gain)	+14.5%

Corrosion warning: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.

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. Wall mount (shear)

*Caution: On a vertical surface, the magnet holds just approx. 20-30% of its max power.

2. Steel saturation

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

3. Power loss vs temp

*For standard magnets, the critical limit is 80°C.

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 1.40

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 and environmental data

Elemental analysis

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

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: 030192-2026

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The ring magnet with a hole MP 25x5x27 / N38 is created for mechanical fastening, where glue might fail or be insufficient. Mounting is clean and reversible, unlike gluing. This product with a force of 18.51 kg works great as a cabinet closure, speaker holder, or spacer element in devices.

This is a crucial issue when working with model MP 25x5x27 / N38. Neodymium magnets are sintered ceramics, which means they are very brittle and inelastic. When tightening the screw, you must maintain caution. We recommend tightening manually with a screwdriver, not an impact driver, because too much pressure will cause the ring to crack. The flat screw head should evenly press the magnet. Remember: cracking during assembly results from material properties, not a product defect.

These magnets are coated with standard Ni-Cu-Ni plating, which protects them in indoor conditions, but is not sufficient for rain. 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 5 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.

This model is characterized by dimensions Ø25x27 mm and a weight of 95.43 g. The pulling force of this model is an impressive 18.51 kg, which translates to 181.54 N in newtons. The product has a [NiCuNi] coating and is made of NdFeB material. Inner hole dimension: 5 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.

Strengths and weaknesses of neodymium magnets.

Pros

Apart from their strong power, neodymium magnets have these key benefits:

They have constant strength, and over more than 10 years their performance decreases symbolically – ~1% (according to theory),
They show high resistance to demagnetization induced by presence of other magnetic fields,
The use of an metallic layer of noble metals (nickel, gold, silver) causes the element to present itself better,
Neodymium magnets create maximum magnetic induction on a small surface, which ensures high operational effectiveness,
Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
In view of the ability of accurate forming and adaptation to specialized requirements, NdFeB magnets can be created in a variety of geometric configurations, which increases their versatility,
Fundamental importance in electronics industry – they are commonly used in magnetic memories, motor assemblies, precision medical tools, and modern systems.
Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in tiny dimensions, which allows their use in miniature devices

Disadvantages

Disadvantages of neodymium magnets:

At very strong impacts they can break, therefore we advise placing them in steel cases. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
Neodymium magnets demagnetize 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 usually rust. To use them in conditions outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which prevent oxidation and corrosion.
Due to limitations in producing nuts and complicated forms in magnets, we propose using casing - magnetic holder.
Health risk to health – tiny shards of magnets are risky, when accidentally swallowed, which is particularly important in the context of child safety. Furthermore, small elements of these devices can be problematic in diagnostics medical in case of swallowing.
High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which can limit application in large quantities

Pull force analysis

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

Magnet power was determined for ideal contact conditions, assuming:

on a base made of mild steel, perfectly concentrating the magnetic field
with a cross-section no less than 10 mm
with a plane perfectly flat
with direct contact (no paint)
for force applied at a right angle (in the magnet axis)
in temp. approx. 20°C

What influences lifting capacity in practice

Effective lifting capacity impacted by working environment parameters, including (from most important):

Distance – the presence of any layer (paint, tape, gap) interrupts the magnetic circuit, which reduces capacity rapidly (even by 50% at 0.5 mm).
Angle of force application – highest force is reached only during perpendicular pulling. The force required to slide of the magnet along the plate is usually many times smaller (approx. 1/5 of the lifting capacity).
Base massiveness – too thin sheet does not accept the full field, causing part of the power to be escaped into the air.
Chemical composition of the base – mild steel gives the best results. Alloy admixtures lower magnetic properties and holding force.
Surface finish – full contact is possible only on polished steel. Any scratches and bumps create air cushions, weakening the magnet.
Thermal factor – hot environment weakens pulling force. Exceeding the limit temperature can permanently demagnetize the magnet.

Lifting capacity was assessed by applying a smooth steel plate of suitable thickness (min. 20 mm), under vertically applied force, whereas under parallel forces the lifting capacity is smaller. Additionally, even a minimal clearance between the magnet’s surface and the plate reduces the load capacity.

Warnings

Threat to navigation

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.

Handling guide

Handle magnets consciously. Their huge power can surprise even experienced users. Stay alert and do not underestimate their power.

Health Danger

Patients with a ICD must keep an safe separation from magnets. The magnetic field can stop the operation of the life-saving device.

Danger to the youngest

Strictly keep magnets away from children. Ingestion danger is high, and the consequences of magnets connecting inside the body are life-threatening.

Heat sensitivity

Monitor thermal conditions. Exposing the magnet above 80 degrees Celsius will destroy its properties and strength.

Cards and drives

Powerful magnetic fields can destroy records on payment cards, HDDs, and storage devices. Keep a distance of at least 10 cm.

Physical harm

Big blocks can crush fingers instantly. Never place your hand between two attracting surfaces.

Dust explosion hazard

Fire hazard: Neodymium dust is highly flammable. Avoid machining magnets without safety gear as this may cause fire.

Skin irritation risks

Studies show that nickel (standard magnet coating) is a strong allergen. For allergy sufferers, avoid touching magnets with bare hands or opt for coated magnets.

Risk of cracking

Despite metallic appearance, the material is brittle and not impact-resistant. Avoid impacts, as the magnet may shatter into hazardous fragments.

Important! Want to know more? Check our post: Why are neodymium magnets dangerous?

MP 25x5x27 / N38 - ring magnet

Technical specification - MP 25x5x27 / N38 - ring magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical modeling of the product - report

Table 1: Static pull force (force vs gap) - power drop MP 25x5x27 / N38

Table 2: Vertical load (vertical surface) MP 25x5x27 / N38

Table 3: Wall mounting (shearing) - vertical pull MP 25x5x27 / N38

Table 4: Material efficiency (substrate influence) - sheet metal selection MP 25x5x27 / N38

Table 5: Thermal resistance (stability) - thermal limit MP 25x5x27 / N38

Table 6: Two magnets (repulsion) - field range MP 25x5x27 / N38

Table 7: Safety (HSE) (implants) - precautionary measures MP 25x5x27 / N38

Table 8: Collisions (cracking risk) - collision effects MP 25x5x27 / N38

Table 9: Anti-corrosion coating durability MP 25x5x27 / N38

Table 10: Electrical data (Flux) MP 25x5x27 / N38

Table 11: Underwater work (magnet fishing) MP 25x5x27 / N38

1. Wall mount (shear)

2. Steel saturation

3. Power loss vs temp

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

Elemental analysis

Environmental data

Pulling force

Magnetic Field

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Strengths and weaknesses of neodymium magnets.

Pros

Disadvantages

Pull force analysis

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

What influences lifting capacity in practice

Warnings

Threat to navigation

Handling guide

Health Danger

Danger to the youngest

Heat sensitivity

Cards and drives

Physical harm

Dust explosion hazard

Skin irritation risks

Risk of cracking

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs gap) - power drop
MP 25x5x27 / N38

Table 2: Vertical load (vertical surface)
MP 25x5x27 / N38

Table 3: Wall mounting (shearing) - vertical pull
MP 25x5x27 / N38

Table 4: Material efficiency (substrate influence) - sheet metal selection
MP 25x5x27 / N38

Table 5: Thermal resistance (stability) - thermal limit
MP 25x5x27 / N38

Table 6: Two magnets (repulsion) - field range
MP 25x5x27 / N38

Table 7: Safety (HSE) (implants) - precautionary measures
MP 25x5x27 / N38

Table 8: Collisions (cracking risk) - collision effects
MP 25x5x27 / N38

Table 9: Anti-corrosion coating durability
MP 25x5x27 / N38

Table 10: Electrical data (Flux)
MP 25x5x27 / N38

Table 11: Underwater work (magnet fishing)
MP 25x5x27 / N38