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MP 62x42x25 / 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

ring magnet

Catalog no 030205

GTIN/EAN: 5906301812227

5.00

Diameter

62 mm [±0,1 mm]

internal diameter Ø

42 mm [±0,1 mm]

Height

25 mm [±0,1 mm]

Weight

306.31 g

Magnetization Direction

↑ axial

Load capacity

58.67 kg / 575.60 N

Magnetic Induction

389.14 mT / 3891 Gs

Coating

[NiCuNi] Nickel

see technical data »

165.00 ZŁ with VAT / pcs + price for transport

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Carbon Footprint – environmental impact GPSR Regulation – product safety

Engineering report for this magnet

Full PDF analysis: pull and shear force, effect of distance, temperature and plate thickness, safety distances and the demagnetization curve.

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Technical details - MP 62x42x25 / N38 - ring magnet

Specification / characteristics - MP 62x42x25 / N38 - ring magnet

properties

properties	values
Cat. no.	030205
GTIN/EAN	5906301812227
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	62 mm [±0,1 mm]
internal diameter Ø	42 mm [±0,1 mm]
Height	25 mm [±0,1 mm]
Weight	306.31 g
Magnetization Direction	↑ axial
Load capacity ~ ?	58.67 kg / 575.60 N
Magnetic Induction ~ ?	389.14 mT / 3891 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MP 62x42x25 / 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 assembly - report

These information are the outcome of a physical calculation. Values rely on algorithms for the material Nd₂Fe₁₄B. Actual performance may differ from theoretical values. Treat these data as a supplementary guide for designers.

Table 1: Static pull force (force vs gap) - interaction chart
MP 62x42x25 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	4472 Gs 447.2 mT	58.67 kg / 129.35 pounds 58670.0 g / 575.6 N	critical level
1 mm	4338 Gs 433.8 mT	55.21 kg / 121.72 pounds 55213.2 g / 541.6 N	critical level
2 mm	4201 Gs 420.1 mT	51.77 kg / 114.13 pounds 51768.5 g / 507.8 N	critical level
3 mm	4061 Gs 406.1 mT	48.39 kg / 106.69 pounds 48394.9 g / 474.8 N	critical level
5 mm	3781 Gs 378.1 mT	41.94 kg / 92.47 pounds 41942.4 g / 411.5 N	critical level
10 mm	3097 Gs 309.7 mT	28.15 kg / 62.06 pounds 28148.0 g / 276.1 N	critical level
15 mm	2485 Gs 248.5 mT	18.12 kg / 39.94 pounds 18118.5 g / 177.7 N	critical level
20 mm	1972 Gs 197.2 mT	11.41 kg / 25.16 pounds 11412.7 g / 112.0 N	critical level
30 mm	1239 Gs 123.9 mT	4.51 kg / 9.93 pounds 4505.2 g / 44.2 N	medium risk
50 mm	533 Gs 53.3 mT	0.83 kg / 1.84 pounds 832.4 g / 8.2 N	low risk

Magnetic force decreases drastically per each millimeter of spacing. Keep in mind that even a very thin break (e.g., contamination, varnish, dust) strongly weakens the grip. Neodymiums work strongest in perfect adhesion; air break kills the power. Notice how quickly the parameters plummet, when the magnet does not adhere flatly to the metal substrate. When calculating the assembly, avoid redundant distances.

Table 2: Sliding hold (wall)
MP 62x42x25 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	11.73 kg / 25.87 pounds 11734.0 g / 115.1 N
1 mm	Stal (~0.2)	11.04 kg / 24.34 pounds 11042.0 g / 108.3 N
2 mm	Stal (~0.2)	10.35 kg / 22.83 pounds 10354.0 g / 101.6 N
3 mm	Stal (~0.2)	9.68 kg / 21.34 pounds 9678.0 g / 94.9 N
5 mm	Stal (~0.2)	8.39 kg / 18.49 pounds 8388.0 g / 82.3 N
10 mm	Stal (~0.2)	5.63 kg / 12.41 pounds 5630.0 g / 55.2 N
15 mm	Stal (~0.2)	3.62 kg / 7.99 pounds 3624.0 g / 35.6 N
20 mm	Stal (~0.2)	2.28 kg / 5.03 pounds 2282.0 g / 22.4 N
30 mm	Stal (~0.2)	0.90 kg / 1.99 pounds 902.0 g / 8.8 N
50 mm	Stal (~0.2)	0.17 kg / 0.37 pounds 166.0 g / 1.6 N

This section defines the estimated force sufficient to initiate the slippage of the magnet vertically along a upright steel wall (assuming typical friction). The holding force depends on the air gap between the magnet and the surface.

Table 3: Vertical assembly (sliding) - vertical pull
MP 62x42x25 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	17.60 kg / 38.80 pounds 17601.0 g / 172.7 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	11.73 kg / 25.87 pounds 11734.0 g / 115.1 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	5.87 kg / 12.93 pounds 5867.0 g / 57.6 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	29.34 kg / 64.67 pounds 29335.0 g / 287.8 N

When placing a element on a upright plane (e.g., a car body), it you can count on just approx. 20%-30% of its maximum pull force. Gravity and a low friction coefficient cause that magnets slip easier than they pull off. Designing a hanger? Remember that the shear force is significantly lower than the maximum static pull force. On a slippery surface, the element will slide down under a much lighter cargo. Using a rubber layer can significantly increase the grip.

Table 4: Material efficiency (substrate influence) - power losses
MP 62x42x25 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	3%	1.96 kg / 4.31 pounds 1955.7 g / 19.2 N
1 mm	8%	4.89 kg / 10.78 pounds 4889.2 g / 48.0 N
2 mm	17%	9.78 kg / 21.56 pounds 9778.3 g / 95.9 N
3 mm	25%	14.67 kg / 32.34 pounds 14667.5 g / 143.9 N
5 mm	42%	24.45 kg / 53.89 pounds 24445.8 g / 239.8 N
10 mm	83%	48.89 kg / 107.79 pounds 48891.7 g / 479.6 N
11 mm	92%	53.78 kg / 118.57 pounds 53780.8 g / 527.6 N
12 mm	100%	58.67 kg / 129.35 pounds 58670.0 g / 575.6 N

A thin sheet is unable to focus the full magnetic flux, which squanders power of the magnet. If you install a neodymium to a thin surface, the flux will penetrate right through and the attraction force will be weaker. To squeeze full efficiency of this magnet's power, you require a sufficiently solid piece of metal. The material oversaturation causes that on delicate walls (e.g., appliance housings), the product shows lower pull force. We suggest choosing the steel thickness based on the following data.

Table 5: Thermal stability (material behavior) - thermal limit
MP 62x42x25 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	58.67 kg / 129.35 pounds 58670.0 g / 575.6 N	OK
40 °C	-2.2%	57.38 kg / 126.50 pounds 57379.3 g / 562.9 N	OK
60 °C	-4.4%	56.09 kg / 123.65 pounds 56088.5 g / 550.2 N	OK
80 °C	-6.6%	54.80 kg / 120.81 pounds 54797.8 g / 537.6 N
100 °C	-28.8%	41.77 kg / 92.09 pounds 41773.0 g / 409.8 N

Standard neodymium magnets lose power after exceeding the maximum temperature. Protect against heat – high temperature can irreversibly damage this product. As the temperature rises, the neodymium's power momentarily decreases. Refrain from using this magnet close to heaters exceeding its working range. Exceeding the critical threshold will result in destruction of magnetism.

*Important note: Thermal stability is determined by both grade, and the Permeance Coefficient Pc. Thin magnets (low Pc) are more susceptible to demagnetization at lower temperatures than long magnets. Red status in the table indicates a risk of irreversible loss for this specific geometry.

Table 6: Magnet-Magnet interaction (repulsion) - forces in the system
MP 62x42x25 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Sliding Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	264.93 kg / 584.07 pounds 5 588 Gs	39.74 kg / 87.61 pounds 39740 g / 389.8 N	N/A
1 mm	257.19 kg / 567.00 pounds 8 812 Gs	38.58 kg / 85.05 pounds 38578 g / 378.4 N	231.47 kg / 510.30 pounds ~0 Gs
2 mm	249.32 kg / 549.66 pounds 8 676 Gs	37.40 kg / 82.45 pounds 37398 g / 366.9 N	224.39 kg / 494.69 pounds ~0 Gs
3 mm	241.51 kg / 532.44 pounds 8 539 Gs	36.23 kg / 79.87 pounds 36227 g / 355.4 N	217.36 kg / 479.19 pounds ~0 Gs
5 mm	226.10 kg / 498.47 pounds 8 262 Gs	33.92 kg / 74.77 pounds 33915 g / 332.7 N	203.49 kg / 448.62 pounds ~0 Gs
10 mm	189.40 kg / 417.55 pounds 7 562 Gs	28.41 kg / 62.63 pounds 28409 g / 278.7 N	170.46 kg / 375.79 pounds ~0 Gs
20 mm	127.11 kg / 280.22 pounds 6 195 Gs	19.07 kg / 42.03 pounds 19066 g / 187.0 N	114.40 kg / 252.20 pounds ~0 Gs
50 mm	32.28 kg / 71.17 pounds 3 122 Gs	4.84 kg / 10.68 pounds 4843 g / 47.5 N	29.06 kg / 64.06 pounds ~0 Gs
60 mm	20.34 kg / 44.85 pounds 2 478 Gs	3.05 kg / 6.73 pounds 3052 g / 29.9 N	18.31 kg / 40.36 pounds ~0 Gs
70 mm	12.99 kg / 28.63 pounds 1 980 Gs	1.95 kg / 4.29 pounds 1948 g / 19.1 N	11.69 kg / 25.77 pounds ~0 Gs
80 mm	8.43 kg / 18.59 pounds 1 595 Gs	1.26 kg / 2.79 pounds 1265 g / 12.4 N	7.59 kg / 16.73 pounds ~0 Gs
90 mm	5.58 kg / 12.29 pounds 1 298 Gs	0.84 kg / 1.84 pounds 836 g / 8.2 N	5.02 kg / 11.06 pounds ~0 Gs
100 mm	3.76 kg / 8.29 pounds 1 065 Gs	0.56 kg / 1.24 pounds 564 g / 5.5 N	3.38 kg / 7.46 pounds ~0 Gs

Two magnets interact from a wider radius than a magnet and steel setup. The setup of magnet-to-magnet produces a massive flux and a larger range of operation. Planning to create a strong closure? Use a pair of magnets instead of one magnet and a steel. Remember that when bringing together two magnets, the collision energy is extreme. The levitation is slightly lower than the connection force, but still impressive.
*The magnetic induction in repulsion mode drops to ~0 Gs at the geometric center of the gap (resulting from vector opposition).
Note: Figures apply to sliding force of dual identical neodymium magnets (friction ~0.15 for Ni-Ni coating).

Table 7: Hazards (implants) - precautionary measures
MP 62x42x25 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	32.5 cm
Hearing aid	10 Gs (1.0 mT)	25.5 cm
Mechanical watch	20 Gs (2.0 mT)	20.0 cm
Phone / Smartphone	40 Gs (4.0 mT)	15.5 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 poses a large risk to electronic devices and pacemakers. These magnets produce a field that destroys function of sensitive medical devices. Remember: the unseen radiation passes through tissues and glass. Special caution must be taken by people with cochlear implants and insulin pumps. Also at risk are: automatic timepieces, car keys, membranes, and displays. Do not bring the product near payment cards, HDD media, or sensitive navigation tools.

Table 8: Collisions (cracking risk) - warning
MP 62x42x25 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	17.65 km/h (4.90 m/s)	3.68 J
30 mm	25.31 km/h (7.03 m/s)	7.57 J
50 mm	31.49 km/h (8.75 m/s)	11.72 J
100 mm	44.16 km/h (12.27 m/s)	23.04 J

Magnetic elements are prone to chipping – a violent impact against metal risks their cracking. Pay attention to connection velocity – a magnet released freely becomes dangerous. Impact energy can destroy the magnet or painful pinches to fingers. Hold the magnet firmly during installation 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 playing with powerful specimens.

Table 9: Coating parameters (durability)
MP 62x42x25 / 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. Note the thickness of the protective layer.

Table 10: Construction data (Flux)
MP 62x42x25 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	100 906 Mx	1009.1 µWb
P_c Coefficient	0.64	High (Stable)

Flux value passing through the pole surface. Essential parameter when building generators as well as sensors. P_c value determines the working geometry.

Table 11: Submerged application
MP 62x42x25 / N38

Environment	Effective steel pull	Effect
Air (land)	58.67 kg	Standard
Water (riverbed)	67.18 kg (+8.51 kg buoyancy gain)	+14.5%

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

The magnetic field penetrates through water without any losses. However, remember the water resistance when pulling the rope quickly.

1. Shear force

*Warning: On a vertical wall, the magnet holds only a fraction of its perpendicular strength.

2. Efficiency vs thickness

*Thin metal sheet (e.g. 0.5mm PC case) drastically limits 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) = 0.64

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

Chemical composition

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: 030205-2026

Measurement Calculator

Pulling force

Force (N)

lbs

Magnetic Field

Gauss (Gs)

Induction (T)

Insert data in one of the inputs, and the remaining units convert instantly.

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The ring magnet with a hole MP 62x42x25 / N38 is created for mechanical fastening, where glue might fail or be insufficient. Thanks to the hole (often for a screw), this model enables quick installation to wood, wall, plastic, or metal. This product with a force of 58.67 kg works great as a cabinet closure, speaker holder, or spacer element in devices.

This material behaves more like porcelain than steel, so it doesn't forgive mistakes during mounting. 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. 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. In the place of the mounting hole, the coating is thinner and can be damaged 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 42 mm fits this model. For magnets with a straight hole, a conical head can act like a wedge and burst the magnet. Always check that the screw head is not larger than the outer diameter of the magnet (62 mm), so it doesn't protrude beyond the outline.

This model is characterized by dimensions Ø62x25 mm and a weight of 306.31 g. The pulling force of this model is an impressive 58.67 kg, which translates to 575.60 N in newtons. The product has a [NiCuNi] coating and is made of NdFeB material. Inner hole dimension: 42 mm.

These magnets are magnetized axially (through the thickness), which means one flat side is the N pole and the other is S. In the case of connecting two rings, make sure one is turned the right way. We do not offer paired sets with marked poles in this category, but they are easy to match manually.

Strengths as well as weaknesses of neodymium magnets.

Benefits

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

Their magnetic field is maintained, and after approximately 10 years it drops only by ~1% (theoretically),
They show high resistance to demagnetization induced by external field influence,
A magnet with a metallic nickel surface has an effective appearance,
They feature high magnetic induction at the operating surface, which improves attraction properties,
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...
Possibility of exact creating and adjusting to concrete applications,
Wide application in electronics industry – they are commonly used in mass storage devices, electric motors, medical equipment, also multitasking production systems.
Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Weaknesses

Disadvantages of neodymium magnets:

Brittleness is one of their disadvantages. Upon intense impact they can fracture. We recommend keeping them in a special holder, which not only secures them against impacts but also raises their durability
Neodymium magnets decrease their power under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
They rust in a humid environment - during use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
We recommend casing - magnetic mount, due to difficulties in creating nuts inside the magnet and complicated forms.
Health risk to health – tiny shards of magnets are risky, when accidentally swallowed, which becomes key in the context of child safety. Additionally, small components of these devices are able to disrupt the diagnostic process medical when they are in the body.
Due to complex production process, their price is relatively high,

Pull force analysis

Maximum lifting capacity of the magnet – what contributes to it?

Holding force of 58.67 kg is a theoretical maximum value performed under the following configuration:

using a plate made of mild steel, serving as a circuit closing element
with a cross-section minimum 10 mm
with an ideally smooth contact surface
under conditions of no distance (metal-to-metal)
under axial force vector (90-degree angle)
at ambient temperature room level

Impact of factors on magnetic holding capacity in practice

Real force is influenced by specific conditions, including (from most important):

Distance (between the magnet and the metal), as even a tiny distance (e.g. 0.5 mm) results in a drastic drop in force by up to 50% (this also applies to paint, rust or debris).
Pull-off angle – remember that the magnet has greatest strength perpendicularly. Under shear forces, the holding force drops drastically, often to levels of 20-30% of the maximum value.
Wall thickness – the thinner the sheet, the weaker the hold. Magnetic flux penetrates through instead of generating force.
Steel type – low-carbon steel attracts best. Alloy admixtures decrease magnetic properties and holding force.
Surface finish – full contact is possible only on smooth steel. Any scratches and bumps reduce the real contact area, weakening the magnet.
Temperature influence – hot environment weakens magnetic field. Exceeding the limit temperature can permanently demagnetize the magnet.

Lifting capacity testing was performed on a smooth plate of suitable thickness, under a perpendicular pulling force, however under shearing force the load capacity is reduced by as much as 75%. Additionally, even a minimal clearance between the magnet and the plate decreases the lifting capacity.

Precautions when working with NdFeB magnets

Fire warning

Drilling and cutting of NdFeB material carries a risk of fire risk. Magnetic powder reacts violently with oxygen and is difficult to extinguish.

Adults only

Neodymium magnets are not toys. Eating a few magnets may result in them pinching intestinal walls, which constitutes a direct threat to life and necessitates immediate surgery.

Thermal limits

Keep cool. Neodymium magnets are sensitive to temperature. If you need resistance above 80°C, look for HT versions (H, SH, UH).

GPS and phone interference

Note: rare earth magnets generate a field that confuses precision electronics. Maintain a safe distance from your phone, device, and GPS.

Data carriers

Very strong magnetic fields can corrupt files on credit cards, HDDs, and other magnetic media. Maintain a gap of at least 10 cm.

Nickel allergy

Studies show that the nickel plating (standard magnet coating) is a strong allergen. If you have an allergy, prevent direct skin contact or opt for coated magnets.

Medical interference

Life threat: Neodymium magnets can turn off heart devices and defibrillators. Stay away if you have electronic implants.

Magnets are brittle

Neodymium magnets are sintered ceramics, meaning they are fragile like glass. Impact of two magnets leads to them breaking into shards.

Caution required

Use magnets with awareness. Their powerful strength can surprise even experienced users. Stay alert and do not underestimate their force.

Bone fractures

Danger of trauma: The pulling power is so immense that it can result in hematomas, pinching, and even bone fractures. Use thick gloves.

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

MP 62x42x25 / N38 - ring magnet

Technical details - MP 62x42x25 / N38 - ring magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical simulation of the assembly - report

Table 1: Static pull force (force vs gap) - interaction chart MP 62x42x25 / N38

Table 2: Sliding hold (wall) MP 62x42x25 / N38

Table 3: Vertical assembly (sliding) - vertical pull MP 62x42x25 / N38

Table 4: Material efficiency (substrate influence) - power losses MP 62x42x25 / N38

Table 5: Thermal stability (material behavior) - thermal limit MP 62x42x25 / N38

Table 6: Magnet-Magnet interaction (repulsion) - forces in the system MP 62x42x25 / N38

Table 7: Hazards (implants) - precautionary measures MP 62x42x25 / N38

Table 8: Collisions (cracking risk) - warning MP 62x42x25 / N38

Table 9: Coating parameters (durability) MP 62x42x25 / N38

Table 10: Construction data (Flux) MP 62x42x25 / N38

Table 11: Submerged application MP 62x42x25 / N38

1. Shear force

2. Efficiency vs thickness

3. Heat tolerance

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

Chemical composition

Environmental data

Pulling force

Magnetic Field

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Strengths as well as weaknesses of neodymium magnets.

Benefits

Weaknesses

Pull force analysis

Maximum lifting capacity of the magnet – what contributes to it?

Impact of factors on magnetic holding capacity in practice

Precautions when working with NdFeB magnets

Fire warning

Adults only

Thermal limits

GPS and phone interference

Data carriers

Nickel allergy

Medical interference

Magnets are brittle

Caution required

Bone fractures

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs gap) - interaction chart
MP 62x42x25 / N38

Table 2: Sliding hold (wall)
MP 62x42x25 / N38

Table 3: Vertical assembly (sliding) - vertical pull
MP 62x42x25 / N38

Table 4: Material efficiency (substrate influence) - power losses
MP 62x42x25 / N38

Table 5: Thermal stability (material behavior) - thermal limit
MP 62x42x25 / N38

Table 6: Magnet-Magnet interaction (repulsion) - forces in the system
MP 62x42x25 / N38

Table 7: Hazards (implants) - precautionary measures
MP 62x42x25 / N38

Table 8: Collisions (cracking risk) - warning
MP 62x42x25 / N38

Table 9: Coating parameters (durability)
MP 62x42x25 / N38

Table 10: Construction data (Flux)
MP 62x42x25 / N38

Table 11: Submerged application
MP 62x42x25 / N38