Product available Ships today (order by 14:00)

MP 25x5x5 / 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 030193

GTIN/EAN: 5906301812104

5.00

Diameter

25 mm [±0,1 mm]

internal diameter Ø

5 mm [±0,1 mm]

Height

5 mm [±0,1 mm]

Weight

17.67 g

Magnetization Direction

↑ axial

Load capacity

7.66 kg / 75.12 N

Magnetic Induction

230.20 mT / 2302 Gs

Coating

[NiCuNi] Nickel

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6.00 ZŁ with VAT / pcs + price for transport

4.88 ZŁ net + 23% VAT / pcs

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Force and structure of neodymium magnets can be verified on our online calculation tool.

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Technical parameters of the product - MP 25x5x5 / N38 - ring magnet

Specification / characteristics - MP 25x5x5 / N38 - ring magnet

properties

properties	values
Cat. no.	030193
GTIN/EAN	5906301812104
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	5 mm [±0,1 mm]
Weight	17.67 g
Magnetization Direction	↑ axial
Load capacity ~ ?	7.66 kg / 75.12 N
Magnetic Induction ~ ?	230.20 mT / 2302 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MP 25x5x5 / 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 analysis of the product - report

These values represent the result of a engineering calculation. Results rely on algorithms for the material Nd₂Fe₁₄B. Actual conditions might slightly differ. Use these calculations as a preliminary roadmap when designing systems.

Table 1: Static pull force (pull vs gap) - characteristics
MP 25x5x5 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	5777 Gs 577.7 mT	7.66 kg / 16.89 pounds 7660.0 g / 75.1 N	medium risk
1 mm	5310 Gs 531.0 mT	6.47 kg / 14.27 pounds 6471.0 g / 63.5 N	medium risk
2 mm	4846 Gs 484.6 mT	5.39 kg / 11.88 pounds 5388.6 g / 52.9 N	medium risk
3 mm	4397 Gs 439.7 mT	4.44 kg / 9.78 pounds 4437.9 g / 43.5 N	medium risk
5 mm	3576 Gs 357.6 mT	2.93 kg / 6.47 pounds 2934.8 g / 28.8 N	medium risk
10 mm	2073 Gs 207.3 mT	0.99 kg / 2.17 pounds 985.9 g / 9.7 N	weak grip
15 mm	1231 Gs 123.1 mT	0.35 kg / 0.77 pounds 347.9 g / 3.4 N	weak grip
20 mm	773 Gs 77.3 mT	0.14 kg / 0.30 pounds 137.0 g / 1.3 N	weak grip
30 mm	356 Gs 35.6 mT	0.03 kg / 0.06 pounds 29.0 g / 0.3 N	weak grip
50 mm	115 Gs 11.5 mT	0.00 kg / 0.01 pounds 3.0 g / 0.0 N	weak grip

Magnetic force decreases sharply with every subsequent millimeter of distance. Note that every additional insulation layer (e.g., dirt, varnish, dust) noticeably reduces the pull force. Magnetic products hold most effectively at the point of direct contact; air break nullifies the force. Observe how rapidly the pull force drop, when the magnet does not adhere tightly to the metal substrate. When planning the assembly, avoid unnecessary gaps.

Table 2: Slippage capacity (vertical surface)
MP 25x5x5 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	1.53 kg / 3.38 pounds 1532.0 g / 15.0 N
1 mm	Stal (~0.2)	1.29 kg / 2.85 pounds 1294.0 g / 12.7 N
2 mm	Stal (~0.2)	1.08 kg / 2.38 pounds 1078.0 g / 10.6 N
3 mm	Stal (~0.2)	0.89 kg / 1.96 pounds 888.0 g / 8.7 N
5 mm	Stal (~0.2)	0.59 kg / 1.29 pounds 586.0 g / 5.7 N
10 mm	Stal (~0.2)	0.20 kg / 0.44 pounds 198.0 g / 1.9 N
15 mm	Stal (~0.2)	0.07 kg / 0.15 pounds 70.0 g / 0.7 N
20 mm	Stal (~0.2)	0.03 kg / 0.06 pounds 28.0 g / 0.3 N
30 mm	Stal (~0.2)	0.01 kg / 0.01 pounds 6.0 g / 0.1 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N

This section presents the approximate shear load necessary to start the downward movement of the magnet downwards on a vertical steel wall (considering standard friction). The holding force is relative to the separation distance between the magnet and the metal.

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MP 25x5x5 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	2.30 kg / 5.07 pounds 2298.0 g / 22.5 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	1.53 kg / 3.38 pounds 1532.0 g / 15.0 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.77 kg / 1.69 pounds 766.0 g / 7.5 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	3.83 kg / 8.44 pounds 3830.0 g / 37.6 N

When hanging a magnet on a vertical wall (e.g., a board), it will only hold only about 20%-30% of nominal attraction strength. Gravitational force as well as a low friction coefficient influence the fact that holders slip faster than they detach. Want to create a vertical fastening? Remember that the sliding force is noticeably lower than the maximum static pull force. On a painted metal, the element will slip down under a much lighter load. Using a rubber pad can drastically raise the stability.

Table 4: Steel thickness (saturation) - power losses
MP 25x5x5 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.77 kg / 1.69 pounds 766.0 g / 7.5 N
1 mm	25%	1.92 kg / 4.22 pounds 1915.0 g / 18.8 N
2 mm	50%	3.83 kg / 8.44 pounds 3830.0 g / 37.6 N
3 mm	75%	5.75 kg / 12.67 pounds 5745.0 g / 56.4 N
5 mm	100%	7.66 kg / 16.89 pounds 7660.0 g / 75.1 N
10 mm	100%	7.66 kg / 16.89 pounds 7660.0 g / 75.1 N
11 mm	100%	7.66 kg / 16.89 pounds 7660.0 g / 75.1 N
12 mm	100%	7.66 kg / 16.89 pounds 7660.0 g / 75.1 N

A thin sheet is not enough to absorb the full magnetic flux, which squanders power of the holder. Should you attach a powerful product to a too thin substrate, the field will pass right through and the holding will be smaller. To utilize 100% of this neodymium's potential, you need a suitably thick element of metal. The saturation effect means that on sheet metal structures (e.g., appliance housings), the magnet works worse. We suggest choosing the steel dimension according to the table below.

Table 5: Working in heat (material behavior) - resistance threshold
MP 25x5x5 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	7.66 kg / 16.89 pounds 7660.0 g / 75.1 N	OK
40 °C	-2.2%	7.49 kg / 16.52 pounds 7491.5 g / 73.5 N	OK
60 °C	-4.4%	7.32 kg / 16.14 pounds 7323.0 g / 71.8 N	OK
80 °C	-6.6%	7.15 kg / 15.77 pounds 7154.4 g / 70.2 N
100 °C	-28.8%	5.45 kg / 12.02 pounds 5453.9 g / 53.5 N

Ordinary NdFeB products change their properties parameters past the thermal threshold. Watch out for overheating – high temperature can permanently demagnetize this magnet. With every degree above norm, the neodymium's capacity momentarily drops. Refrain from using this magnet close to ovens higher than its working range. Exceeding the critical threshold will lead to permanent loss of magnetism.

*Technical advisory: Temperature resistance is determined by both grade, but also on the magnet's shape. Thin magnets (low permeance coefficient) risk losing magnetic properties under lower heat stress than long magnets. The danger warning in the table points to a risk of irreversible loss for this specific geometry.

Table 6: Magnet-Magnet interaction (repulsion) - field range
MP 25x5x5 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Sliding Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	82.42 kg / 181.72 pounds 6 082 Gs	12.36 kg / 27.26 pounds 12364 g / 121.3 N	N/A
1 mm	75.95 kg / 167.44 pounds 11 091 Gs	11.39 kg / 25.12 pounds 11392 g / 111.8 N	68.35 kg / 150.69 pounds ~0 Gs
2 mm	69.63 kg / 153.51 pounds 10 620 Gs	10.44 kg / 23.03 pounds 10445 g / 102.5 N	62.67 kg / 138.16 pounds ~0 Gs
3 mm	63.64 kg / 140.29 pounds 10 153 Gs	9.55 kg / 21.04 pounds 9545 g / 93.6 N	57.27 kg / 126.26 pounds ~0 Gs
5 mm	52.69 kg / 116.16 pounds 9 238 Gs	7.90 kg / 17.42 pounds 7903 g / 77.5 N	47.42 kg / 104.54 pounds ~0 Gs
10 mm	31.58 kg / 69.62 pounds 7 152 Gs	4.74 kg / 10.44 pounds 4737 g / 46.5 N	28.42 kg / 62.66 pounds ~0 Gs
20 mm	10.61 kg / 23.39 pounds 4 145 Gs	1.59 kg / 3.51 pounds 1591 g / 15.6 N	9.55 kg / 21.05 pounds ~0 Gs
50 mm	0.65 kg / 1.43 pounds 1 024 Gs	0.10 kg / 0.21 pounds 97 g / 1.0 N	0.58 kg / 1.28 pounds ~0 Gs
60 mm	0.31 kg / 0.69 pounds 712 Gs	0.05 kg / 0.10 pounds 47 g / 0.5 N	0.28 kg / 0.62 pounds ~0 Gs
70 mm	0.16 kg / 0.36 pounds 514 Gs	0.02 kg / 0.05 pounds 24 g / 0.2 N	0.15 kg / 0.32 pounds ~0 Gs
80 mm	0.09 kg / 0.20 pounds 383 Gs	0.01 kg / 0.03 pounds 14 g / 0.1 N	0.08 kg / 0.18 pounds ~0 Gs
90 mm	0.05 kg / 0.12 pounds 293 Gs	0.01 kg / 0.02 pounds 8 g / 0.1 N	0.05 kg / 0.11 pounds ~0 Gs
100 mm	0.03 kg / 0.07 pounds 230 Gs	0.00 kg / 0.01 pounds 5 g / 0.0 N	0.03 kg / 0.06 pounds ~0 Gs

Two strong neodymiums attract each other from a significantly greater distance than a magnet and steel setup. The setup of two magnets creates a more powerful interaction and a further horizon of performance. Planning to create a strong closure? Utilize two neodymiums instead of a neodymium and a striker plate. Exercise caution that when attracting two neodymiums, the collision energy is huge. The repulsion force is marginally weaker than the attraction, but still impressive.
*Flux density between like poles reaches ~0 Gs at the geometric center between the magnets (due to field cancellation).
Note: Calculations refer to friction force of two identical magnets (friction ~0.15 for Ni-Ni layer).

Table 7: Safety (HSE) (electronics) - precautionary measures
MP 25x5x5 / 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
Car key	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 poses a large risk to electronic devices and medical implants. These NdFeB products produce a flux that destroys function of digital equipment. Notice: the unseen radiation passes through tissues and housings. Exceptional care must be exercised by people with cochlear implants and insulin pumps. The risk also applies to: automatic timepieces, remotes, speakers, and screens. Avoid contact with magnetic cards, HDD media, or precise measuring instruments.

Table 8: Collisions (cracking risk) - warning
MP 25x5x5 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	22.62 km/h (6.28 m/s)	0.35 J
30 mm	36.46 km/h (10.13 m/s)	0.91 J
50 mm	46.96 km/h (13.05 m/s)	1.50 J
100 mm	66.40 km/h (18.45 m/s)	3.01 J

Neodymium magnets are delicate – a collision with steel can result in shattering. Control the attraction moment – a neodymium left loose speeds with massive force. Kinetic force can destroy the magnet or dangerous crushing to skin. Always hold the magnet during installation so it doesn't hit with great force against the metal. A contact at a velocity of dozens of km/h means shattering of the neodymium. Wear safety glasses when working with large magnets.

Table 9: Coating parameters (durability)
MP 25x5x5 / 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. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Electrical data (P_c)
MP 25x5x5 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	24 536 Mx	245.4 µWb
P_c Coefficient	1.03	High (Stable)

Total magnetic flux passing through the magnet pole. Key data in coil applications and motors. The P_c coefficient determines the magnet's operating point.

Table 11: Submerged application
MP 25x5x5 / N38

Environment	Effective steel pull	Effect
Air (land)	7.66 kg	Standard
Water (riverbed)	8.77 kg (+1.11 kg buoyancy gain)	+14.5%

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

In water, the magnet feels stronger thanks to Archimedes' principle. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Wall mount (shear)

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

2. Plate thickness effect

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

3. Heat tolerance

*For N38 grade, the critical limit is 80°C.

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 1.03

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: 030193-2026

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MPL 20x10x5 / N38 - lamellar magnet

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It is ideally suited for places where solid attachment of the magnet to the substrate is required without the risk of detachment. Mounting is clean and reversible, unlike gluing. This product with a force of 7.66 kg works great as a door latch, speaker holder, or spacer element in devices.

This is a crucial issue when working with model MP 25x5x5 / N38. Neodymium magnets are sintered ceramics, which means they are very brittle and inelastic. One turn too many can destroy the magnet, so do it slowly. 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. This product is dedicated for inside building use. For outdoor applications, we recommend choosing magnets in hermetic housing or additional protection with varnish.

The inner hole diameter determines the maximum size of the mounting element. 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.

The presented product is a ring magnet with dimensions Ø25 mm (outer diameter) and height 5 mm. The pulling force of this model is an impressive 7.66 kg, which translates to 75.12 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. 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.

Pros as well as cons of neodymium magnets.

Benefits

Apart from their superior magnetism, neodymium magnets have these key benefits:

They virtually do not lose strength, because even after 10 years the performance loss is only ~1% (based on calculations),
Magnets effectively defend themselves against demagnetization caused by ambient magnetic noise,
The use of an metallic layer of noble metals (nickel, gold, silver) causes the element to have aesthetics,
Magnetic induction on the working part of the magnet remains exceptional,
Thanks to resistance to high temperature, they can operate (depending on the form) even at temperatures up to 230°C and higher...
Possibility of precise creating and adapting to specific needs,
Key role in electronics industry – they are used in hard drives, brushless drives, advanced medical instruments, and technologically advanced constructions.
Relatively small size with high pulling force – neodymium magnets offer high power in small dimensions, which makes them useful in miniature devices

Disadvantages

Cons of neodymium magnets and ways of using them

To avoid cracks upon strong impacts, we recommend using special steel housings. Such a solution secures the magnet and simultaneously improves its durability.
When exposed to high temperature, neodymium magnets suffer a drop in force. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size and shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
They rust in a humid environment. For use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
Limited ability of creating threads in the magnet and complicated forms - recommended is casing - mounting mechanism.
Health risk resulting from small fragments of magnets pose a threat, if swallowed, which becomes key in the aspect of protecting the youngest. Additionally, tiny parts of these products can be problematic in diagnostics medical when they are in the body.
High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which increases costs of application in large quantities

Lifting parameters

Optimal lifting capacity of a neodymium magnet – what it depends on?

The lifting capacity listed is a measurement result conducted under the following configuration:

on a plate made of mild steel, effectively closing the magnetic field
whose thickness equals approx. 10 mm
with an polished touching surface
with total lack of distance (no paint)
for force applied at a right angle (in the magnet axis)
in neutral thermal conditions

Determinants of lifting force in real conditions

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

Gap (betwixt the magnet and the plate), because even a microscopic clearance (e.g. 0.5 mm) results in a reduction in force by up to 50% (this also applies to varnish, rust or dirt).
Pull-off angle – note that the magnet has greatest strength perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the maximum value.
Metal thickness – the thinner the sheet, the weaker the hold. Magnetic flux passes through the material instead of generating force.
Material composition – different alloys attracts identically. High carbon content weaken the interaction with the magnet.
Surface condition – smooth surfaces guarantee perfect abutment, which improves field saturation. Rough surfaces weaken the grip.
Temperature influence – high temperature weakens magnetic field. Too high temperature can permanently damage the magnet.

Holding force was measured on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, in contrast under shearing force the load capacity is reduced by as much as 5 times. Additionally, even a slight gap between the magnet and the plate reduces the lifting capacity.

Warnings

Do not give to children

Absolutely keep magnets out of reach of children. Ingestion danger is high, and the consequences of magnets clamping inside the body are very dangerous.

Avoid contact if allergic

Warning for allergy sufferers: The nickel-copper-nickel coating consists of nickel. If skin irritation occurs, immediately stop handling magnets and wear gloves.

Phone sensors

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

Pinching danger

Risk of injury: The attraction force is so immense that it can result in hematomas, crushing, and broken bones. Protective gloves are recommended.

Warning for heart patients

Individuals with a pacemaker must keep an safe separation from magnets. The magnetism can interfere with the operation of the implant.

Magnets are brittle

Protect your eyes. Magnets can explode upon uncontrolled impact, launching sharp fragments into the air. Eye protection is mandatory.

Safe operation

Exercise caution. Neodymium magnets attract from a long distance and connect with massive power, often faster than you can move away.

Dust explosion hazard

Mechanical processing of NdFeB material poses a fire risk. Magnetic powder reacts violently with oxygen and is difficult to extinguish.

Keep away from computers

Data protection: Strong magnets can damage data carriers and sensitive devices (pacemakers, hearing aids, mechanical watches).

Operating temperature

Standard neodymium magnets (grade N) undergo demagnetization when the temperature surpasses 80°C. The loss of strength is permanent.

Danger! Need more info? Read our article: Are neodymium magnets dangerous?

MP 25x5x5 / N38 - ring magnet

Technical parameters of the product - MP 25x5x5 / N38 - ring magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering analysis of the product - report

Table 1: Static pull force (pull vs gap) - characteristics MP 25x5x5 / N38

Table 2: Slippage capacity (vertical surface) MP 25x5x5 / N38

Table 3: Wall mounting (shearing) - behavior on slippery surfaces MP 25x5x5 / N38

Table 4: Steel thickness (saturation) - power losses MP 25x5x5 / N38

Table 5: Working in heat (material behavior) - resistance threshold MP 25x5x5 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field range MP 25x5x5 / N38

Table 7: Safety (HSE) (electronics) - precautionary measures MP 25x5x5 / N38

Table 8: Collisions (cracking risk) - warning MP 25x5x5 / N38

Table 9: Coating parameters (durability) MP 25x5x5 / N38

Table 10: Electrical data (Pc) MP 25x5x5 / N38

Table 11: Submerged application MP 25x5x5 / N38

1. Wall mount (shear)

2. Plate thickness effect

3. Heat tolerance

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

Elemental analysis

Environmental data

Force (pull)

Magnetic Induction

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Pros as well as cons of neodymium magnets.

Benefits

Disadvantages

Lifting parameters

Optimal lifting capacity of a neodymium magnet – what it depends on?

Determinants of lifting force in real conditions

Warnings

Do not give to children

Avoid contact if allergic

Phone sensors

Pinching danger

Warning for heart patients

Magnets are brittle

Safe operation

Dust explosion hazard

Keep away from computers

Operating temperature

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (pull vs gap) - characteristics
MP 25x5x5 / N38

Table 2: Slippage capacity (vertical surface)
MP 25x5x5 / N38

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MP 25x5x5 / N38

Table 4: Steel thickness (saturation) - power losses
MP 25x5x5 / N38

Table 5: Working in heat (material behavior) - resistance threshold
MP 25x5x5 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field range
MP 25x5x5 / N38

Table 7: Safety (HSE) (electronics) - precautionary measures
MP 25x5x5 / N38

Table 8: Collisions (cracking risk) - warning
MP 25x5x5 / N38

Table 9: Coating parameters (durability)
MP 25x5x5 / N38

Table 10: Electrical data (P_c)
MP 25x5x5 / N38

Table 11: Submerged application
MP 25x5x5 / N38