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MP 25x8x5 / 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 030196

GTIN/EAN: 5906301812135

5.00

Diameter

25 mm [±0,1 mm]

internal diameter Ø

8 mm [±0,1 mm]

Height

5 mm [±0,1 mm]

Weight

16.52 g

Magnetization Direction

↑ axial

Load capacity

7.16 kg / 70.21 N

Magnetic Induction

230.20 mT / 2302 Gs

Coating

[NiCuNi] Nickel

technical specifications »

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Technical specification of the product - MP 25x8x5 / N38 - ring magnet

Specification / characteristics - MP 25x8x5 / N38 - ring magnet

properties

properties	values
Cat. no.	030196
GTIN/EAN	5906301812135
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	5 mm [±0,1 mm]
Weight	16.52 g
Magnetization Direction	↑ axial
Load capacity ~ ?	7.16 kg / 70.21 N
Magnetic Induction ~ ?	230.20 mT / 2302 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MP 25x8x5 / N38 - ring magnet

properties	values	units
remenance Br [min. - max.] ?	12.2-12.6	kGs
remenance Br [min. - max.] ?	1220-1260	mT
coercivity bHc ?	10.8-11.5	kOe
coercivity bHc ?	860-915	kA/m
actual internal force iHc	≥ 12	kOe
actual internal force iHc	≥ 955	kA/m
energy density [min. - max.] ?	36-38	BH max MGOe
energy density [min. - max.] ?	287-303	BH max KJ/m
max. temperature ?	≤ 80	°C

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

properties	values	units
Vickers hardness	≥550	Hv
Density	≥7.4	g/cm³
Curie Temperature TC	312 - 380	°C
Curie Temperature TF	593 - 716	°F
Specific resistance	150	μΩ⋅cm
Bending strength	250	MPa
Compressive strength	1000~1100	MPa
Thermal expansion parallel (∥) to orientation (M)	(3-4) x 10^-6	°C^-1
Thermal expansion perpendicular (⊥) to orientation (M)	-(1-3) x 10^-6	°C^-1
Young's modulus	1.7 x 10⁴	kg/mm²

Technical simulation of the product - report

Presented values constitute the direct effect of a physical calculation. Values are based on algorithms for the class Nd₂Fe₁₄B. Operational performance might slightly differ from theoretical values. Please consider these data as a reference point during assembly planning.

Table 1: Static pull force (pull vs distance) - characteristics
MP 25x8x5 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	5777 Gs 577.7 mT	7.16 kg / 15.79 LBS 7160.0 g / 70.2 N	warning
1 mm	5310 Gs 531.0 mT	6.05 kg / 13.33 LBS 6048.6 g / 59.3 N	warning
2 mm	4846 Gs 484.6 mT	5.04 kg / 11.10 LBS 5036.9 g / 49.4 N	warning
3 mm	4397 Gs 439.7 mT	4.15 kg / 9.15 LBS 4148.2 g / 40.7 N	warning
5 mm	3576 Gs 357.6 mT	2.74 kg / 6.05 LBS 2743.2 g / 26.9 N	warning
10 mm	2073 Gs 207.3 mT	0.92 kg / 2.03 LBS 921.6 g / 9.0 N	safe
15 mm	1231 Gs 123.1 mT	0.33 kg / 0.72 LBS 325.2 g / 3.2 N	safe
20 mm	773 Gs 77.3 mT	0.13 kg / 0.28 LBS 128.0 g / 1.3 N	safe
30 mm	356 Gs 35.6 mT	0.03 kg / 0.06 LBS 27.2 g / 0.3 N	safe
50 mm	115 Gs 11.5 mT	0.00 kg / 0.01 LBS 2.8 g / 0.0 N	safe

Pulling power weakens significantly per each millimeter of gap. Keep in mind that even a microscopic distance (e.g., dirt, varnish, veneer) noticeably weakens the grip. Neodymiums hold most effectively during direct contact; gap weakens the force. Observe how rapidly the load capacity fall, when the magnet does not adhere tightly to the metal substrate. When planning the assembly, discard redundant distances.

Table 2: Slippage force (wall)
MP 25x8x5 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	1.43 kg / 3.16 LBS 1432.0 g / 14.0 N
1 mm	Stal (~0.2)	1.21 kg / 2.67 LBS 1210.0 g / 11.9 N
2 mm	Stal (~0.2)	1.01 kg / 2.22 LBS 1008.0 g / 9.9 N
3 mm	Stal (~0.2)	0.83 kg / 1.83 LBS 830.0 g / 8.1 N
5 mm	Stal (~0.2)	0.55 kg / 1.21 LBS 548.0 g / 5.4 N
10 mm	Stal (~0.2)	0.18 kg / 0.41 LBS 184.0 g / 1.8 N
15 mm	Stal (~0.2)	0.07 kg / 0.15 LBS 66.0 g / 0.6 N
20 mm	Stal (~0.2)	0.03 kg / 0.06 LBS 26.0 g / 0.3 N
30 mm	Stal (~0.2)	0.01 kg / 0.01 LBS 6.0 g / 0.1 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 0.0 g / 0.0 N

The table below calculates the theoretical holding capacity sufficient to start the shifting of the magnet downwards along a upright steel plate (assuming typical friction coefficient). This parameter is relative to the distance between the magnet and the metal.

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MP 25x8x5 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	2.15 kg / 4.74 LBS 2148.0 g / 21.1 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	1.43 kg / 3.16 LBS 1432.0 g / 14.0 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.72 kg / 1.58 LBS 716.0 g / 7.0 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	3.58 kg / 7.89 LBS 3580.0 g / 35.1 N

When placing a magnet on a vertical plane (e.g., a car body), it you can count on only about 20%-30% of its nominal power. Gravity as well as a weak degree of grip mean that magnets slip faster than they pop off the substrate. Want to create a vertical fastening? Consider that the shear force is much weaker than the perpendicular breakaway force. On a slippery surface, the holder will slide down under a much lighter load. Utilizing a rubberized coating can drastically raise the stability.

Table 4: Steel thickness (saturation) - sheet metal selection
MP 25x8x5 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.72 kg / 1.58 LBS 716.0 g / 7.0 N
1 mm	25%	1.79 kg / 3.95 LBS 1790.0 g / 17.6 N
2 mm	50%	3.58 kg / 7.89 LBS 3580.0 g / 35.1 N
3 mm	75%	5.37 kg / 11.84 LBS 5370.0 g / 52.7 N
5 mm	100%	7.16 kg / 15.79 LBS 7160.0 g / 70.2 N
10 mm	100%	7.16 kg / 15.79 LBS 7160.0 g / 70.2 N
11 mm	100%	7.16 kg / 15.79 LBS 7160.0 g / 70.2 N
12 mm	100%	7.16 kg / 15.79 LBS 7160.0 g / 70.2 N

A too thin steel is not enough to conduct the full magnetic flux, which weakens actual performance of the magnet. Should you install a neodymium to a thin surface, the flux will penetrate right through and the holding will be smaller. To achieve 100% of this neodymium's potential, you need a suitably thick backing of steel. The saturation phenomenon causes that on thin elements (e.g., thin profiles), the magnet holds weaker. We recommend selecting the steel thickness from these parameters.

Table 5: Working in heat (material behavior) - resistance threshold
MP 25x8x5 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	7.16 kg / 15.79 LBS 7160.0 g / 70.2 N	OK
40 °C	-2.2%	7.00 kg / 15.44 LBS 7002.5 g / 68.7 N	OK
60 °C	-4.4%	6.84 kg / 15.09 LBS 6845.0 g / 67.1 N	OK
80 °C	-6.6%	6.69 kg / 14.74 LBS 6687.4 g / 65.6 N
100 °C	-28.8%	5.10 kg / 11.24 LBS 5097.9 g / 50.0 N

Standard neodymium magnets change their properties strength past the thermal threshold. Avoid high temperatures – excessive heat can irreversibly destroy this product. With every degree above norm, the magnet's force temporarily drops. Do not use this magnet close to heaters higher than its working range. Exceeding the critical threshold will result in irreversible degradation of magnetic properties.

*Important note: Temperature resistance is determined by both grade, as well as the dimension ratios. Low-profile magnets (low permeance coefficient) risk losing magnetic properties under lower heat stress than long magnets. Red status in the table points to permanent field degradation for this specific geometry.

Table 6: Two magnets (attraction) - forces in the system
MP 25x8x5 / 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 LBS 6 082 Gs	12.36 kg / 27.26 LBS 12364 g / 121.3 N	N/A
1 mm	75.95 kg / 167.44 LBS 11 091 Gs	11.39 kg / 25.12 LBS 11392 g / 111.8 N	68.35 kg / 150.69 LBS ~0 Gs
2 mm	69.63 kg / 153.51 LBS 10 620 Gs	10.44 kg / 23.03 LBS 10445 g / 102.5 N	62.67 kg / 138.16 LBS ~0 Gs
3 mm	63.64 kg / 140.29 LBS 10 153 Gs	9.55 kg / 21.04 LBS 9545 g / 93.6 N	57.27 kg / 126.26 LBS ~0 Gs
5 mm	52.69 kg / 116.16 LBS 9 238 Gs	7.90 kg / 17.42 LBS 7903 g / 77.5 N	47.42 kg / 104.54 LBS ~0 Gs
10 mm	31.58 kg / 69.62 LBS 7 152 Gs	4.74 kg / 10.44 LBS 4737 g / 46.5 N	28.42 kg / 62.66 LBS ~0 Gs
20 mm	10.61 kg / 23.39 LBS 4 145 Gs	1.59 kg / 3.51 LBS 1591 g / 15.6 N	9.55 kg / 21.05 LBS ~0 Gs
50 mm	0.65 kg / 1.43 LBS 1 024 Gs	0.10 kg / 0.21 LBS 97 g / 1.0 N	0.58 kg / 1.28 LBS ~0 Gs
60 mm	0.31 kg / 0.69 LBS 712 Gs	0.05 kg / 0.10 LBS 47 g / 0.5 N	0.28 kg / 0.62 LBS ~0 Gs
70 mm	0.16 kg / 0.36 LBS 514 Gs	0.02 kg / 0.05 LBS 24 g / 0.2 N	0.15 kg / 0.32 LBS ~0 Gs
80 mm	0.09 kg / 0.20 LBS 383 Gs	0.01 kg / 0.03 LBS 14 g / 0.1 N	0.08 kg / 0.18 LBS ~0 Gs
90 mm	0.05 kg / 0.12 LBS 293 Gs	0.01 kg / 0.02 LBS 8 g / 0.1 N	0.05 kg / 0.11 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 strong neodymiums interact from a wider radius than a neodymium and metal setup. The connection of magnet-to-magnet generates a stronger field and a further horizon of performance. Designing a powerful holder? Utilize two neodymiums instead of one magnet and a striker plate. Remember that when bringing together two magnets, the pinch force is massive. The repulsion force is slightly lower than the attraction, but still large.
*The magnetic induction in repulsion mode drops to ~0 Gs at the midpoint between the magnets (caused by magnetic field nullification).
* Estimates demonstrate shear force of two same neodymium magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Protective zones (electronics) - precautionary measures
MP 25x8x5 / 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
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

Powerful magnet radiation is a large risk to IT equipment and pacemakers. These magnets produce a flux that disrupts operation of digital equipment. Notice: the unseen radiation penetrates the body and glass. Exceptional care must be taken by people with cochlear implants and drug dispensers. Also at risk are: automatic timepieces, car keys, speakers, and displays. Do not place the magnet near cards, HDD media, or sensitive navigation tools.

Table 8: Collisions (kinetic energy) - warning
MP 25x8x5 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	22.62 km/h (6.28 m/s)	0.33 J
30 mm	36.45 km/h (10.13 m/s)	0.85 J
50 mm	46.96 km/h (13.04 m/s)	1.41 J
100 mm	66.40 km/h (18.44 m/s)	2.81 J

Neodymium magnets are delicate – a violent impact against metal causes immediate chipping. Control the attraction moment – a neodymium left loose becomes dangerous. Striking energy can trigger coating fragments or dangerous crushing to skin. Hold the magnet firmly during bringing near metal so it doesn't hit with great force against the steel surface. A collision at high speed almost guarantees destruction of the neodymium. Wear eye protection when working with powerful specimens.

Table 9: Surface protection spec
MP 25x8x5 / 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: Construction data (P_c)
MP 25x8x5 / 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 pole surface. Key data in coil applications and motors. The P_c coefficient determines the magnet's operating point.

Table 11: Underwater work (magnet fishing)
MP 25x8x5 / N38

Environment	Effective steel pull	Effect
Air (land)	7.16 kg	Standard
Water (riverbed)	8.20 kg (+1.04 kg buoyancy gain)	+14.5%

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

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)

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

2. Steel thickness impact

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

3. Temperature resistance

*For N38 material, 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) = 1.03

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.

Engineering data and GPSR

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%

Ecology and recycling (GPSR)

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: 030196-2026

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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 is a crucial issue when working with model MP 25x8x5 / 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. 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 is not sufficient for rain. Damage to the protective layer during assembly is the most common cause of rusting. This product is dedicated for indoor 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.

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 7.16 kg, which translates to 70.21 N in newtons. The product has a [NiCuNi] coating and is made of NdFeB material. Inner hole dimension: 8 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). We do not offer paired sets with marked poles in this category, but they are easy to match manually.

Strengths and weaknesses of rare earth magnets.

Strengths

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

They do not lose power, even after nearly 10 years – the decrease in lifting capacity is only ~1% (theoretically),
They have excellent resistance to magnetic field loss when exposed to external fields,
By using a reflective coating of gold, the element has an proper look,
Magnetic induction on the working layer of the magnet turns out to be extremely intense,
Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the form) even at high temperatures reaching 230°C or more...
Thanks to modularity in forming and the capacity to customize to specific needs,
Versatile presence in electronics industry – they serve a role in computer drives, electromotive mechanisms, precision medical tools, and complex engineering applications.
Thanks to concentrated force, small magnets offer high operating force, occupying minimum space,

Disadvantages

Disadvantages of NdFeB magnets:

To avoid cracks upon strong impacts, we recommend using special steel housings. Such a solution protects the magnet and simultaneously improves its durability.
Neodymium magnets decrease their force under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material stable to moisture, when using outdoors
We suggest a housing - magnetic mechanism, due to difficulties in producing nuts inside the magnet and complicated forms.
Potential hazard related to microscopic parts of magnets can be dangerous, if swallowed, which becomes key in the context of child health protection. It is also worth noting that small elements of these magnets can be problematic in diagnostics medical after entering 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

Maximum magnetic pulling force – what it depends on?

The declared magnet strength concerns the maximum value, obtained under laboratory conditions, namely:

using a base made of mild steel, serving as a ideal flux conductor
possessing a thickness of minimum 10 mm to ensure full flux closure
with an polished touching surface
without the slightest air gap between the magnet and steel
under perpendicular application of breakaway force (90-degree angle)
at temperature room level

Practical aspects of lifting capacity – factors

Bear in mind that the working load may be lower depending on the following factors, in order of importance:

Distance – the presence of any layer (rust, dirt, gap) acts as an insulator, which reduces power rapidly (even by 50% at 0.5 mm).
Pull-off angle – note that the magnet holds strongest perpendicularly. Under sliding down, the holding force drops drastically, often to levels of 20-30% of the nominal value.
Element thickness – to utilize 100% power, the steel must be adequately massive. Paper-thin metal limits the attraction force (the magnet "punches through" it).
Material type – ideal substrate is pure iron steel. Hardened steels may attract less.
Base smoothness – the smoother and more polished the plate, the better the adhesion and stronger the hold. Roughness creates an air distance.
Temperature – heating the magnet results in weakening of force. Check the thermal limit for a given model.

Lifting capacity testing was performed on plates with a smooth surface of optimal thickness, under perpendicular forces, whereas under attempts to slide the magnet the holding force is lower. Moreover, even a slight gap between the magnet’s surface and the plate reduces the holding force.

H&S for magnets

Pacemakers

Patients with a heart stimulator must keep an large gap from magnets. The magnetic field can interfere with the operation of the implant.

Cards and drives

Device Safety: Strong magnets can ruin payment cards and delicate electronics (heart implants, medical aids, mechanical watches).

Eye protection

Watch out for shards. Magnets can explode upon violent connection, launching sharp fragments into the air. We recommend safety glasses.

Dust explosion hazard

Dust generated during grinding of magnets is self-igniting. Avoid drilling into magnets without proper cooling and knowledge.

Respect the power

Before use, read the rules. Sudden snapping can destroy the magnet or injure your hand. Be predictive.

Allergic reactions

Medical facts indicate that the nickel plating (the usual finish) is a potent allergen. For allergy sufferers, refrain from direct skin contact and select versions in plastic housing.

Compass and GPS

A powerful magnetic field negatively affects the operation of magnetometers in phones and navigation systems. Maintain magnets near a device to avoid damaging the sensors.

Danger to the youngest

NdFeB magnets are not intended for children. Swallowing a few magnets may result in them attracting across intestines, which poses a critical condition and necessitates urgent medical intervention.

Thermal limits

Standard neodymium magnets (N-type) undergo demagnetization when the temperature goes above 80°C. The loss of strength is permanent.

Bone fractures

Danger of trauma: The attraction force is so great that it can result in hematomas, pinching, and even bone fractures. Protective gloves are recommended.

Safety First! Need more info? Read our article: Why are neodymium magnets dangerous?

MP 25x8x5 / N38 - ring magnet

Technical specification of the product - MP 25x8x5 / N38 - ring magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical simulation of the product - report

Table 1: Static pull force (pull vs distance) - characteristics MP 25x8x5 / N38

Table 2: Slippage force (wall) MP 25x8x5 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces MP 25x8x5 / N38

Table 4: Steel thickness (saturation) - sheet metal selection MP 25x8x5 / N38

Table 5: Working in heat (material behavior) - resistance threshold MP 25x8x5 / N38

Table 6: Two magnets (attraction) - forces in the system MP 25x8x5 / N38

Table 7: Protective zones (electronics) - precautionary measures MP 25x8x5 / N38

Table 8: Collisions (kinetic energy) - warning MP 25x8x5 / N38

Table 9: Surface protection spec MP 25x8x5 / N38

Table 10: Construction data (Pc) MP 25x8x5 / N38

Table 11: Underwater work (magnet fishing) MP 25x8x5 / N38

1. Wall mount (shear)

2. Steel thickness impact

3. Temperature resistance

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

Elemental analysis

Ecology and recycling (GPSR)

Magnet pull force

Field Strength

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MW 70x40 / N38 - cylindrical magnet

Strengths and weaknesses of rare earth magnets.

Strengths

Disadvantages

Lifting parameters

Maximum magnetic pulling force – what it depends on?

Practical aspects of lifting capacity – factors

H&S for magnets

Pacemakers

Cards and drives

Eye protection

Dust explosion hazard

Respect the power

Allergic reactions

Compass and GPS

Danger to the youngest

Thermal limits

Bone fractures

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (pull vs distance) - characteristics
MP 25x8x5 / N38

Table 2: Slippage force (wall)
MP 25x8x5 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MP 25x8x5 / N38

Table 4: Steel thickness (saturation) - sheet metal selection
MP 25x8x5 / N38

Table 5: Working in heat (material behavior) - resistance threshold
MP 25x8x5 / N38

Table 6: Two magnets (attraction) - forces in the system
MP 25x8x5 / N38

Table 7: Protective zones (electronics) - precautionary measures
MP 25x8x5 / N38

Table 8: Collisions (kinetic energy) - warning
MP 25x8x5 / N38

Table 9: Surface protection spec
MP 25x8x5 / N38

Table 10: Construction data (P_c)
MP 25x8x5 / N38

Table 11: Underwater work (magnet fishing)
MP 25x8x5 / N38