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MP 60x20x5 / 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 030204

GTIN/EAN: 5906301812210

5.00

Diameter

60 mm [±0,1 mm]

internal diameter Ø

20 mm [±0,1 mm]

Height

5 mm [±0,1 mm]

Weight

94.25 g

Magnetization Direction

↑ axial

Load capacity

9.41 kg / 92.27 N

Magnetic Induction

101.92 mT / 1019 Gs

Coating

[NiCuNi] Nickel

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Technical - MP 60x20x5 / N38 - ring magnet

Specification / characteristics - MP 60x20x5 / N38 - ring magnet

properties

properties	values
Cat. no.	030204
GTIN/EAN	5906301812210
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	60 mm [±0,1 mm]
internal diameter Ø	20 mm [±0,1 mm]
Height	5 mm [±0,1 mm]
Weight	94.25 g
Magnetization Direction	↑ axial
Load capacity ~ ?	9.41 kg / 92.27 N
Magnetic Induction ~ ?	101.92 mT / 1019 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MP 60x20x5 / 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

Physical modeling of the assembly - report

The following values constitute the outcome of a physical calculation. Results rely on algorithms for the class Nd₂Fe₁₄B. Real-world performance may differ from theoretical values. Please consider these data as a reference point for designers.

Table 1: Static pull force (force vs gap) - characteristics
MP 60x20x5 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	4541 Gs 454.1 mT	9.41 kg / 20.75 pounds 9410.0 g / 92.3 N	warning
1 mm	4400 Gs 440.0 mT	8.83 kg / 19.47 pounds 8832.4 g / 86.6 N	warning
2 mm	4254 Gs 425.4 mT	8.26 kg / 18.21 pounds 8258.2 g / 81.0 N	warning
3 mm	4107 Gs 410.7 mT	7.70 kg / 16.97 pounds 7697.5 g / 75.5 N	warning
5 mm	3812 Gs 381.2 mT	6.63 kg / 14.62 pounds 6630.0 g / 65.0 N	warning
10 mm	3097 Gs 309.7 mT	4.38 kg / 9.65 pounds 4375.1 g / 42.9 N	warning
15 mm	2463 Gs 246.3 mT	2.77 kg / 6.10 pounds 2767.8 g / 27.2 N	warning
20 mm	1939 Gs 193.9 mT	1.72 kg / 3.78 pounds 1715.2 g / 16.8 N	low risk
30 mm	1202 Gs 120.2 mT	0.66 kg / 1.45 pounds 659.2 g / 6.5 N	low risk
50 mm	509 Gs 50.9 mT	0.12 kg / 0.26 pounds 118.0 g / 1.2 N	low risk

Magnetic force decreases sharply with every subsequent millimeter of gap. Keep in mind that even a microscopic distance (e.g., contamination, varnish, dust) noticeably diminishes the holding power. Neodymiums operate most effectively in perfect adhesion; distance kills the power. Analyze how rapidly the parameters drop, when the magnet does not touch flatly to the steel surface. When designing the arrangement, eliminate additional spacers.

Table 2: Vertical force (wall)
MP 60x20x5 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	1.88 kg / 4.15 pounds 1882.0 g / 18.5 N
1 mm	Stal (~0.2)	1.77 kg / 3.89 pounds 1766.0 g / 17.3 N
2 mm	Stal (~0.2)	1.65 kg / 3.64 pounds 1652.0 g / 16.2 N
3 mm	Stal (~0.2)	1.54 kg / 3.40 pounds 1540.0 g / 15.1 N
5 mm	Stal (~0.2)	1.33 kg / 2.92 pounds 1326.0 g / 13.0 N
10 mm	Stal (~0.2)	0.88 kg / 1.93 pounds 876.0 g / 8.6 N
15 mm	Stal (~0.2)	0.55 kg / 1.22 pounds 554.0 g / 5.4 N
20 mm	Stal (~0.2)	0.34 kg / 0.76 pounds 344.0 g / 3.4 N
30 mm	Stal (~0.2)	0.13 kg / 0.29 pounds 132.0 g / 1.3 N
50 mm	Stal (~0.2)	0.02 kg / 0.05 pounds 24.0 g / 0.2 N

This section indicates the estimated holding capacity sufficient to cause the sliding of the magnet down on a upright steel plate (assuming typical friction coefficient). The holding force depends on the air gap between the magnet and the surface.

Table 3: Vertical assembly (shearing) - vertical pull
MP 60x20x5 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	2.82 kg / 6.22 pounds 2823.0 g / 27.7 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	1.88 kg / 4.15 pounds 1882.0 g / 18.5 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.94 kg / 2.07 pounds 941.0 g / 9.2 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	4.71 kg / 10.37 pounds 4705.0 g / 46.2 N

When mounting a holder on a upright wall (e.g., a board), it will maintain just about 1/5 of nominal attraction strength. Gravity as well as a weak degree of grip mean that products move down easier than they detach. Want to create a wall mount? Consider that the sliding force is noticeably lower than the perpendicular breakaway force. On a slippery surface, the element will slide down under a noticeably lighter load. Using a rubber layer can effectively improve the result.

Table 4: Steel thickness (saturation) - power losses
MP 60x20x5 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.94 kg / 2.07 pounds 941.0 g / 9.2 N
1 mm	25%	2.35 kg / 5.19 pounds 2352.5 g / 23.1 N
2 mm	50%	4.71 kg / 10.37 pounds 4705.0 g / 46.2 N
3 mm	75%	7.06 kg / 15.56 pounds 7057.5 g / 69.2 N
5 mm	100%	9.41 kg / 20.75 pounds 9410.0 g / 92.3 N
10 mm	100%	9.41 kg / 20.75 pounds 9410.0 g / 92.3 N
11 mm	100%	9.41 kg / 20.75 pounds 9410.0 g / 92.3 N
12 mm	100%	9.41 kg / 20.75 pounds 9410.0 g / 92.3 N

A too thin steel is incapable of conduct the entire magnetic field, which squanders power of the magnet. If you attach a powerful product to a weak sheet, the flux will pass right through and the attraction force will be weaker. To squeeze 100% of this neodymium's power, you need a suitably thick piece of metal. The material oversaturation means that on thin elements (e.g., car bodies), the holder shows lower pull force. We recommend selecting the steel cross-section from these parameters.

Table 5: Thermal resistance (stability) - thermal limit
MP 60x20x5 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	9.41 kg / 20.75 pounds 9410.0 g / 92.3 N	OK
40 °C	-2.2%	9.20 kg / 20.29 pounds 9203.0 g / 90.3 N	OK
60 °C	-4.4%	9.00 kg / 19.83 pounds 8996.0 g / 88.3 N	OK
80 °C	-6.6%	8.79 kg / 19.38 pounds 8788.9 g / 86.2 N
100 °C	-28.8%	6.70 kg / 14.77 pounds 6699.9 g / 65.7 N

Standard neodymium magnets change their properties power past the thermal threshold. Avoid high temperatures – excessive heat can permanently damage this product. With every degree above norm, the magnet's power briefly drops. Refrain from using this product close to heaters exceeding its working range. Exceeding the critical threshold will result in destruction of magnetic properties.

*Engineering note: Temperature resistance depends not only on the material grade, but also on the magnet's shape. Thin magnets (low Pc) may lose charge permanently at lower temperatures compared to rod magnets. The danger warning in the table indicates permanent field degradation for this specific geometry.

Table 6: Two magnets (attraction) - forces in the system
MP 60x20x5 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	303.46 kg / 669.01 pounds 5 621 Gs	45.52 kg / 100.35 pounds 45519 g / 446.5 N	N/A
1 mm	294.21 kg / 648.62 pounds 8 943 Gs	44.13 kg / 97.29 pounds 44132 g / 432.9 N	264.79 kg / 583.76 pounds ~0 Gs
2 mm	284.83 kg / 627.94 pounds 8 800 Gs	42.72 kg / 94.19 pounds 42725 g / 419.1 N	256.35 kg / 565.15 pounds ~0 Gs
3 mm	275.53 kg / 607.43 pounds 8 655 Gs	41.33 kg / 91.11 pounds 41329 g / 405.4 N	247.97 kg / 546.69 pounds ~0 Gs
5 mm	257.21 kg / 567.06 pounds 8 362 Gs	38.58 kg / 85.06 pounds 38582 g / 378.5 N	231.49 kg / 510.35 pounds ~0 Gs
10 mm	213.81 kg / 471.36 pounds 7 624 Gs	32.07 kg / 70.70 pounds 32071 g / 314.6 N	192.43 kg / 424.23 pounds ~0 Gs
20 mm	141.09 kg / 311.05 pounds 6 193 Gs	21.16 kg / 46.66 pounds 21164 g / 207.6 N	126.98 kg / 279.95 pounds ~0 Gs
50 mm	34.15 kg / 75.30 pounds 3 047 Gs	5.12 kg / 11.29 pounds 5123 g / 50.3 N	30.74 kg / 67.77 pounds ~0 Gs
60 mm	21.26 kg / 46.87 pounds 2 404 Gs	3.19 kg / 7.03 pounds 3189 g / 31.3 N	19.13 kg / 42.18 pounds ~0 Gs
70 mm	13.43 kg / 29.61 pounds 1 911 Gs	2.01 kg / 4.44 pounds 2015 g / 19.8 N	12.09 kg / 26.65 pounds ~0 Gs
80 mm	8.65 kg / 19.06 pounds 1 533 Gs	1.30 kg / 2.86 pounds 1297 g / 12.7 N	7.78 kg / 17.16 pounds ~0 Gs
90 mm	5.68 kg / 12.52 pounds 1 243 Gs	0.85 kg / 1.88 pounds 852 g / 8.4 N	5.11 kg / 11.27 pounds ~0 Gs
100 mm	3.81 kg / 8.39 pounds 1 017 Gs	0.57 kg / 1.26 pounds 571 g / 5.6 N	3.43 kg / 7.55 pounds ~0 Gs

Two strong neodymiums attract each other from a much further distance than a neodymium and metal setup. The setup of magnet-to-magnet creates a more powerful interaction and a larger range of performance. Want to build a solid fastener? Apply two magnets instead of a neodymium and a steel. Exercise caution that when attracting two neodymiums, the pinch force is huge. The repulsion force is a bit weaker than the connection force, but still large.
*Flux density between like poles is approximately ~0 Gs in the exact middle between the magnets (caused by magnetic field nullification).
* Calculations refer to sliding force of dual same neodymium magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Protective zones (electronics) - precautionary measures
MP 60x20x5 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	31.5 cm
Hearing aid	10 Gs (1.0 mT)	24.5 cm
Timepiece	20 Gs (2.0 mT)	19.5 cm
Mobile device	40 Gs (4.0 mT)	15.0 cm
Car key	50 Gs (5.0 mT)	14.0 cm
Payment card	400 Gs (40.0 mT)	6.0 cm
HDD hard drive	600 Gs (60.0 mT)	5.0 cm

Extremely neodym field is a serious hazard to IT equipment as well as medical implants. These magnets produce a field that prevents correct functioning of sensitive medical devices. Remember: the invisible magnetic field passes through tissues and housings. Special caution must be exercised by people with cochlear implants and drug dispensers. Also at risk are: automatic timepieces, car keys, membranes, and displays. Do not place the magnet near cards, HDD media, or precise measuring instruments.

Table 8: Impact energy (cracking risk) - collision effects
MP 60x20x5 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	12.67 km/h (3.52 m/s)	0.58 J
30 mm	18.20 km/h (5.06 m/s)	1.20 J
50 mm	22.71 km/h (6.31 m/s)	1.88 J
100 mm	31.88 km/h (8.85 m/s)	3.70 J

NdFeB products are prone to chipping – a violent impact against metal causes immediate chipping. Pay attention to connection velocity – a neodymium left loose turns into a projectile. Impact energy can cause material chips or dangerous crushing to skin. Always hold the magnet during installation so it doesn't hit with great force against the metal. A collision at high speed ends with a crack of the neodymium. Wear safety glasses when playing with large magnets.

Table 9: Coating parameters (durability)
MP 60x20x5 / 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 following table defines the conditions under which this product can be safely used. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Construction data (P_c)
MP 60x20x5 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	109 640 Mx	1096.4 µWb
P_c Coefficient	0.62	High (Stable)

Total magnetic flux emitted by the magnet pole. Essential parameter for generator designers and motors. The P_c coefficient defines the working geometry.

Table 11: Underwater work (magnet fishing)
MP 60x20x5 / N38

Environment	Effective steel pull	Effect
Air (land)	9.41 kg	Standard
Water (riverbed)	10.77 kg (+1.36 kg buoyancy gain)	+14.5%

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

Water displaces steel, making heavy objects slightly lighter. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Sliding resistance

*Note: On a vertical surface, the magnet retains merely approx. 20-30% of its perpendicular strength.

2. Plate thickness effect

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

3. Heat tolerance

*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) = 0.62

The chart above illustrates the magnetic characteristics of the material within the second quadrant of the hysteresis loop. 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: 030204-2026

Quick Unit Converter

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Newtons (N)

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MPL 5x5x1.2 / N38 - lamellar magnet

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UMGGZ 22x6 [M4] GZ / N38 - rubber magnetic holder external thread

7.38 ZŁ brutto / pcs

The ring magnet with a hole MP 60x20x5 / N38 is created for mechanical fastening, where glue might fail or be insufficient. Mounting is clean and reversible, unlike gluing. It is also often used in advertising for fixing signs and in workshops for organizing tools.

This material behaves more like porcelain than steel, so it doesn't forgive mistakes during mounting. One turn too many can destroy the magnet, so do it slowly. The flat screw head should evenly press the magnet. Remember: cracking during assembly results from material properties, not a product defect.

Moisture can penetrate micro-cracks in the coating and cause oxidation of the magnet. Damage to the protective layer during assembly is the most common cause of rusting. If you must use it outside, paint it with anti-corrosion paint after mounting.

A screw or bolt with a thread diameter smaller than 20 mm fits this model. For magnets with a straight hole, a conical head can act like a wedge and burst the magnet. Aesthetic mounting requires selecting the appropriate head size.

It is a magnetic ring with a diameter of 60 mm and thickness 5 mm. The pulling force of this model is an impressive 9.41 kg, which translates to 92.27 N in newtons. The mounting hole diameter is precisely 20 mm.

These magnets are magnetized axially (through the thickness), which means one flat side is the N pole and the other is S. 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.

Pros as well as cons of rare earth magnets.

Benefits

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

They have stable power, and over nearly ten years their performance decreases symbolically – ~1% (according to theory),
They are noted for resistance to demagnetization induced by external field influence,
The use of an elegant finish of noble metals (nickel, gold, silver) causes the element to have aesthetics,
They show high magnetic induction at the operating surface, which increases their power,
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 the possibility of accurate forming and adaptation to specialized projects, magnetic components can be produced in a wide range of forms and dimensions, which amplifies use scope,
Versatile presence in advanced technology sectors – they serve a role in computer drives, brushless drives, diagnostic systems, as well as other advanced devices.
Thanks to concentrated force, small magnets offer high operating force, in miniature format,

Limitations

Disadvantages of neodymium magnets:

They are prone to damage upon heavy impacts. To avoid cracks, it is worth securing magnets in special housings. Such protection not only protects the magnet but also increases its resistance to damage
We warn that neodymium magnets can lose their power at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 230°C.
Magnets exposed to a humid environment can corrode. Therefore while using outdoors, we advise using waterproof magnets made of rubber, plastic or other material protecting against moisture
Due to limitations in realizing nuts and complicated forms in magnets, we recommend using a housing - magnetic holder.
Potential hazard resulting from small fragments of magnets are risky, when accidentally swallowed, which becomes key in the aspect of protecting the youngest. Additionally, small elements of these magnets are able to complicate diagnosis medical when they are in the body.
Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Pull force analysis

Best holding force of the magnet in ideal parameters – what contributes to it?

The lifting capacity listed is a result of laboratory testing executed under standard conditions:

using a plate made of high-permeability steel, acting as a magnetic yoke
possessing a thickness of at least 10 mm to ensure full flux closure
with a plane cleaned and smooth
under conditions of ideal adhesion (surface-to-surface)
under vertical force vector (90-degree angle)
at temperature room level

Practical lifting capacity: influencing factors

It is worth knowing that the working load may be lower depending on the following factors, starting with the most relevant:

Gap (betwixt the magnet and the metal), as even a tiny distance (e.g. 0.5 mm) can cause a reduction in lifting capacity by up to 50% (this also applies to varnish, rust or debris).
Load vector – highest force is available only during pulling at a 90° angle. The force required to slide of the magnet along the plate is typically many times lower (approx. 1/5 of the lifting capacity).
Plate thickness – insufficiently thick steel does not accept the full field, causing part of the power to be lost to the other side.
Plate material – low-carbon steel gives the best results. Higher carbon content lower magnetic permeability and holding force.
Plate texture – smooth surfaces guarantee perfect abutment, which improves force. Uneven metal reduce efficiency.
Thermal environment – heating the magnet causes a temporary drop of induction. Check the maximum operating temperature for a given model.

Lifting capacity testing was conducted on plates with a smooth surface of suitable thickness, under a perpendicular pulling force, whereas under attempts to slide the magnet the load capacity is reduced by as much as 5 times. In addition, even a slight gap between the magnet and the plate lowers the lifting capacity.

H&S for magnets

Nickel allergy

Studies show that the nickel plating (the usual finish) is a potent allergen. For allergy sufferers, avoid direct skin contact or select coated magnets.

Permanent damage

Avoid heat. Neodymium magnets are susceptible to temperature. If you need operation above 80°C, ask us about HT versions (H, SH, UH).

Safe operation

Handle magnets with awareness. Their immense force can surprise even professionals. Stay alert and respect their power.

ICD Warning

Health Alert: Neodymium magnets can turn off heart devices and defibrillators. Stay away if you have medical devices.

Crushing force

Pinching hazard: The pulling power is so immense that it can cause hematomas, crushing, and even bone fractures. Protective gloves are recommended.

Shattering risk

NdFeB magnets are sintered ceramics, meaning they are very brittle. Clashing of two magnets leads to them breaking into shards.

Keep away from computers

Powerful magnetic fields can destroy records on credit cards, HDDs, and other magnetic media. Stay away of min. 10 cm.

Product not for children

Strictly keep magnets away from children. Ingestion danger is significant, and the consequences of magnets connecting inside the body are very dangerous.

Phone sensors

Navigation devices and mobile phones are extremely sensitive to magnetism. Close proximity with a powerful NdFeB magnet can ruin the sensors in your phone.

Do not drill into magnets

Fire warning: Neodymium dust is explosive. Avoid machining magnets in home conditions as this risks ignition.

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

MP 60x20x5 / N38 - ring magnet

Technical - MP 60x20x5 / N38 - ring magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical modeling of the assembly - report

Table 1: Static pull force (force vs gap) - characteristics MP 60x20x5 / N38

Table 2: Vertical force (wall) MP 60x20x5 / N38

Table 3: Vertical assembly (shearing) - vertical pull MP 60x20x5 / N38

Table 4: Steel thickness (saturation) - power losses MP 60x20x5 / N38

Table 5: Thermal resistance (stability) - thermal limit MP 60x20x5 / N38

Table 6: Two magnets (attraction) - forces in the system MP 60x20x5 / N38

Table 7: Protective zones (electronics) - precautionary measures MP 60x20x5 / N38

Table 8: Impact energy (cracking risk) - collision effects MP 60x20x5 / N38

Table 9: Coating parameters (durability) MP 60x20x5 / N38

Table 10: Construction data (Pc) MP 60x20x5 / N38

Table 11: Underwater work (magnet fishing) MP 60x20x5 / N38

1. Sliding resistance

2. Plate thickness effect

3. Heat tolerance

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

Elemental analysis

Ecology and recycling (GPSR)

Pulling force

Field Strength

See also proposals

MPL 12x10x4 / N38 - lamellar magnet

MW 25x2.5 / N38 - cylindrical magnet

MPL 5x5x1.2 / N38 - lamellar magnet

UMGGZ 22x6 [M4] GZ / N38 - rubber magnetic holder external thread

Pros as well as cons of rare earth magnets.

Benefits

Limitations

Pull force analysis

Best holding force of the magnet in ideal parameters – what contributes to it?

Practical lifting capacity: influencing factors

H&S for magnets

Nickel allergy

Permanent damage

Safe operation

ICD Warning

Crushing force

Shattering risk

Keep away from computers

Product not for children

Phone sensors

Do not drill into magnets

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs gap) - characteristics
MP 60x20x5 / N38

Table 2: Vertical force (wall)
MP 60x20x5 / N38

Table 3: Vertical assembly (shearing) - vertical pull
MP 60x20x5 / N38

Table 4: Steel thickness (saturation) - power losses
MP 60x20x5 / N38

Table 5: Thermal resistance (stability) - thermal limit
MP 60x20x5 / N38

Table 6: Two magnets (attraction) - forces in the system
MP 60x20x5 / N38

Table 7: Protective zones (electronics) - precautionary measures
MP 60x20x5 / N38

Table 8: Impact energy (cracking risk) - collision effects
MP 60x20x5 / N38

Table 9: Coating parameters (durability)
MP 60x20x5 / N38

Table 10: Construction data (P_c)
MP 60x20x5 / N38

Table 11: Underwater work (magnet fishing)
MP 60x20x5 / N38