Product available Ships tomorrow

MP 40x22x10 / N38 - ring magnet

Name: Dhit sp. z o.o.
Address: Kościuszki 6A, Ożarów Mazowiecki, mazowieckie, 05-850, PL
Telephone: +48 22 499 98 98
Price range: 1-6500 PLN
Rating: 5

ring magnet

Catalog no 030344

GTIN/EAN: 5906301812296

5.00

Diameter

40 mm [±0,1 mm]

internal diameter Ø

22 mm [±0,1 mm]

Height

10 mm [±0,1 mm]

Weight

65.74 g

Magnetization Direction

↑ axial

Load capacity

19.34 kg / 189.71 N

Magnetic Induction

277.22 mT / 2772 Gs

Coating

[NiCuNi] Nickel

technical details »

40.59 ZŁ with VAT / pcs + price for transport

33.00 ZŁ net + 23% VAT / pcs

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Parameters along with appearance of a neodymium magnet can be reviewed on our power calculator.

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Technical parameters of the product - MP 40x22x10 / N38 - ring magnet

Specification / characteristics - MP 40x22x10 / N38 - ring magnet

properties

properties	values
Cat. no.	030344
GTIN/EAN	5906301812296
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	40 mm [±0,1 mm]
internal diameter Ø	22 mm [±0,1 mm]
Height	10 mm [±0,1 mm]
Weight	65.74 g
Magnetization Direction	↑ axial
Load capacity ~ ?	19.34 kg / 189.71 N
Magnetic Induction ~ ?	277.22 mT / 2772 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MP 40x22x10 / 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 magnet - report

The following values are the direct effect of a physical analysis. Values were calculated on algorithms for the class Nd₂Fe₁₄B. Actual conditions might slightly deviate from the simulation results. Please consider these calculations as a supplementary guide during assembly planning.

Table 1: Static pull force (pull vs gap) - power drop
MP 40x22x10 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	5269 Gs 526.9 mT	19.34 kg / 42.64 pounds 19340.0 g / 189.7 N	critical level
1 mm	5005 Gs 500.5 mT	17.46 kg / 38.48 pounds 17455.9 g / 171.2 N	critical level
2 mm	4739 Gs 473.9 mT	15.65 kg / 34.50 pounds 15647.5 g / 153.5 N	critical level
3 mm	4475 Gs 447.5 mT	13.95 kg / 30.75 pounds 13950.0 g / 136.8 N	critical level
5 mm	3960 Gs 396.0 mT	10.93 kg / 24.09 pounds 10927.7 g / 107.2 N	critical level
10 mm	2832 Gs 283.2 mT	5.59 kg / 12.32 pounds 5589.2 g / 54.8 N	strong
15 mm	1990 Gs 199.0 mT	2.76 kg / 6.09 pounds 2760.5 g / 27.1 N	strong
20 mm	1407 Gs 140.7 mT	1.38 kg / 3.04 pounds 1379.2 g / 13.5 N	weak grip
30 mm	745 Gs 74.5 mT	0.39 kg / 0.85 pounds 386.2 g / 3.8 N	weak grip
50 mm	268 Gs 26.8 mT	0.05 kg / 0.11 pounds 50.1 g / 0.5 N	weak grip

Pulling power decreases significantly per each millimeter of distance. Remember that even a very thin break (e.g., contamination, varnish, veneer) noticeably reduces the pull force. Magnetic products work strongest at the point of direct contact; distance drastically cuts the power. See how quickly the pull force plummet, when the magnet does not adhere directly to the steel surface. When calculating the mounting, avoid additional spacers.

Table 2: Sliding force (wall)
MP 40x22x10 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	3.87 kg / 8.53 pounds 3868.0 g / 37.9 N
1 mm	Stal (~0.2)	3.49 kg / 7.70 pounds 3492.0 g / 34.3 N
2 mm	Stal (~0.2)	3.13 kg / 6.90 pounds 3130.0 g / 30.7 N
3 mm	Stal (~0.2)	2.79 kg / 6.15 pounds 2790.0 g / 27.4 N
5 mm	Stal (~0.2)	2.19 kg / 4.82 pounds 2186.0 g / 21.4 N
10 mm	Stal (~0.2)	1.12 kg / 2.46 pounds 1118.0 g / 11.0 N
15 mm	Stal (~0.2)	0.55 kg / 1.22 pounds 552.0 g / 5.4 N
20 mm	Stal (~0.2)	0.28 kg / 0.61 pounds 276.0 g / 2.7 N
30 mm	Stal (~0.2)	0.08 kg / 0.17 pounds 78.0 g / 0.8 N
50 mm	Stal (~0.2)	0.01 kg / 0.02 pounds 10.0 g / 0.1 N

This section presents the approximate holding capacity sufficient to initiate the shifting of the magnet vertically on a vertical steel plate (assuming typical friction coefficient). This parameter is relative to the gap size between the magnet and the surface.

Table 3: Vertical assembly (shearing) - vertical pull
MP 40x22x10 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	5.80 kg / 12.79 pounds 5802.0 g / 56.9 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	3.87 kg / 8.53 pounds 3868.0 g / 37.9 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	1.93 kg / 4.26 pounds 1934.0 g / 19.0 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	9.67 kg / 21.32 pounds 9670.0 g / 94.9 N

When mounting a magnet on a vertical plane (e.g., a car body), it will maintain barely about 1/5 of nominal attraction strength. Gravitational force and a weak degree of grip influence the fact that holders slide down faster than they pull off. Planning a wall mount? Remember that the shear force is significantly lower than the perpendicular breakaway force. On a smooth steel, the holder will give way down under a noticeably lighter weight. Using a rubber coating can drastically increase the grip.

Table 4: Steel thickness (saturation) - power losses
MP 40x22x10 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	5%	0.97 kg / 2.13 pounds 967.0 g / 9.5 N
1 mm	13%	2.42 kg / 5.33 pounds 2417.5 g / 23.7 N
2 mm	25%	4.84 kg / 10.66 pounds 4835.0 g / 47.4 N
3 mm	38%	7.25 kg / 15.99 pounds 7252.5 g / 71.1 N
5 mm	63%	12.09 kg / 26.65 pounds 12087.5 g / 118.6 N
10 mm	100%	19.34 kg / 42.64 pounds 19340.0 g / 189.7 N
11 mm	100%	19.34 kg / 42.64 pounds 19340.0 g / 189.7 N
12 mm	100%	19.34 kg / 42.64 pounds 19340.0 g / 189.7 N

A thin sheet is not enough to focus the full magnetic flux, which weakens actual performance of the magnet. If you mount a strong magnet to a too thin substrate, the flux will penetrate right through and the pull force will drop sharply. To utilize 100% of this magnet's power, you need a suitably thick piece of steel. The saturation effect means that on thin elements (e.g., thin profiles), the product holds weaker. We suggest choosing the steel thickness from these parameters.

Table 5: Working in heat (stability) - thermal limit
MP 40x22x10 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	19.34 kg / 42.64 pounds 19340.0 g / 189.7 N	OK
40 °C	-2.2%	18.91 kg / 41.70 pounds 18914.5 g / 185.6 N	OK
60 °C	-4.4%	18.49 kg / 40.76 pounds 18489.0 g / 181.4 N	OK
80 °C	-6.6%	18.06 kg / 39.82 pounds 18063.6 g / 177.2 N
100 °C	-28.8%	13.77 kg / 30.36 pounds 13770.1 g / 135.1 N

Standard neodymium magnets lose power above the temperature limit. Avoid high temperatures – heat can permanently damage this product. As the temperature rises, the magnet's power temporarily drops. Do not use this magnet close to heaters higher than its operating temperature limit. Too high temperature will lead to permanent loss of magnetism.

*Engineering note: Heat tolerance is determined by both grade, and the Permeance Coefficient Pc. Thin magnets (pancake types) are more susceptible to demagnetization sooner than taller cylinders. Red status in the table signals permanent field degradation for this particular item.

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MP 40x22x10 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Strength (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	171.37 kg / 377.80 pounds 5 920 Gs	25.71 kg / 56.67 pounds 25705 g / 252.2 N	N/A
1 mm	163.01 kg / 359.38 pounds 10 277 Gs	24.45 kg / 53.91 pounds 24452 g / 239.9 N	146.71 kg / 323.44 pounds ~0 Gs
2 mm	154.67 kg / 341.00 pounds 10 011 Gs	23.20 kg / 51.15 pounds 23201 g / 227.6 N	139.21 kg / 306.90 pounds ~0 Gs
3 mm	146.55 kg / 323.08 pounds 9 744 Gs	21.98 kg / 48.46 pounds 21982 g / 215.6 N	131.89 kg / 290.77 pounds ~0 Gs
5 mm	131.00 kg / 288.81 pounds 9 213 Gs	19.65 kg / 43.32 pounds 19650 g / 192.8 N	117.90 kg / 259.92 pounds ~0 Gs
10 mm	96.83 kg / 213.47 pounds 7 921 Gs	14.52 kg / 32.02 pounds 14524 g / 142.5 N	87.15 kg / 192.12 pounds ~0 Gs
20 mm	49.53 kg / 109.18 pounds 5 665 Gs	7.43 kg / 16.38 pounds 7429 g / 72.9 N	44.57 kg / 98.27 pounds ~0 Gs
50 mm	6.33 kg / 13.95 pounds 2 025 Gs	0.95 kg / 2.09 pounds 949 g / 9.3 N	5.69 kg / 12.55 pounds ~0 Gs
60 mm	3.42 kg / 7.55 pounds 1 489 Gs	0.51 kg / 1.13 pounds 513 g / 5.0 N	3.08 kg / 6.79 pounds ~0 Gs
70 mm	1.94 kg / 4.27 pounds 1 120 Gs	0.29 kg / 0.64 pounds 290 g / 2.8 N	1.74 kg / 3.84 pounds ~0 Gs
80 mm	1.14 kg / 2.52 pounds 860 Gs	0.17 kg / 0.38 pounds 171 g / 1.7 N	1.03 kg / 2.27 pounds ~0 Gs
90 mm	0.70 kg / 1.54 pounds 673 Gs	0.10 kg / 0.23 pounds 105 g / 1.0 N	0.63 kg / 1.39 pounds ~0 Gs
100 mm	0.44 kg / 0.98 pounds 536 Gs	0.07 kg / 0.15 pounds 67 g / 0.7 N	0.40 kg / 0.88 pounds ~0 Gs

Two magnets interact from a much further distance than a magnet and steel setup. The connection of magnet-to-magnet produces a massive flux and a larger range of performance. Want to build a strong closure? Use a pair of magnets instead of a neodymium and a steel. Be careful that when bringing together two magnets, the collision energy is extreme. The repulsion force is marginally weaker than the connection force, but still significant.
*Field value for N-N configuration drops to ~0 Gs at the midpoint of the gap (resulting from vector opposition).
* Figures show sliding force of dual identical neodymium magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Protective zones (implants) - precautionary measures
MP 40x22x10 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	24.0 cm
Hearing aid	10 Gs (1.0 mT)	18.5 cm
Timepiece	20 Gs (2.0 mT)	14.5 cm
Mobile device	40 Gs (4.0 mT)	11.0 cm
Remote	50 Gs (5.0 mT)	10.5 cm
Payment card	400 Gs (40.0 mT)	4.5 cm
HDD hard drive	600 Gs (60.0 mT)	3.5 cm

Extremely neodym field is a real danger to electronics and medical implants. These NdFeB products generate a flux that destroys function of digital equipment. Remember: the unseen radiation acts through matter and plastic. Exceptional care must be taken by people with cochlear implants and drug dispensers. Also at risk are: mechanical watches, car keys, speakers, and displays. Avoid contact with magnetic cards, HDD media, or precise measuring instruments.

Table 8: Dynamics (cracking risk) - collision effects
MP 40x22x10 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	20.18 km/h (5.61 m/s)	1.03 J
30 mm	30.33 km/h (8.43 m/s)	2.33 J
50 mm	38.74 km/h (10.76 m/s)	3.81 J
100 mm	54.70 km/h (15.20 m/s)	7.59 J

Neodymium magnets are delicate – a strong collision with metal can result in shattering. Control the attraction moment – a neodymium left loose speeds with massive force. Kinetic force can destroy the magnet or painful pinches to skin. Be sure to control the product during installation so it doesn't hit violently against the metal. A collision at high speed ends with a crack of the magnet. Use safety goggles when playing with large magnets.

Table 9: Coating parameters (durability)
MP 40x22x10 / 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)

Neodymium magnets are highly susceptible to corrosion without proper protection. Note the thickness of the protective layer.

Table 10: Electrical data (Flux)
MP 40x22x10 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	54 070 Mx	540.7 µWb
P_c Coefficient	0.81	High (Stable)

Flux value passing through the pole surface. Key data in coil applications and motors. P_c value defines the magnet's operating point.

Table 11: Underwater work (magnet fishing)
MP 40x22x10 / N38

Environment	Effective steel pull	Effect
Air (land)	19.34 kg	Standard
Water (riverbed)	22.14 kg (+2.80 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!

In water, the magnet feels stronger thanks to Archimedes' principle. Buoyancy helps in lifting finds.

1. Vertical hold

*Note: On a vertical surface, the magnet holds only approx. 20-30% of its nominal pull.

2. Steel saturation

*Thin steel (e.g. computer case) significantly weakens 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) = 0.81

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%

Sustainability

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: 030344-2026

Measurement Calculator

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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 40x22x10 / N38. Neodymium magnets are sintered ceramics, which means they are very brittle and inelastic. When tightening the screw, you must maintain caution. We recommend tightening manually with a screwdriver, not an impact driver, because too much pressure will cause the ring to crack. 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.

Moisture can penetrate micro-cracks in the coating and cause oxidation of the magnet. In the place of the mounting hole, the coating is thinner and easily scratched when tightening the screw, which will become a corrosion focus. If you must use it outside, paint it with anti-corrosion paint after mounting.

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. Always check that the screw head is not larger than the outer diameter of the magnet (40 mm), so it doesn't protrude beyond the outline.

It is a magnetic ring with a diameter of 40 mm and thickness 10 mm. The key parameter here is the lifting capacity amounting to approximately 19.34 kg (force ~189.71 N). The product has a [NiCuNi] coating and is made of NdFeB material. Inner hole dimension: 22 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). We do not offer paired sets with marked poles in this category, but they are easy to match manually.

Strengths and weaknesses of Nd₂Fe₁₄B magnets.

Strengths

In addition to their magnetic capacity, neodymium magnets provide the following advantages:

Their strength is durable, and after approximately 10 years it drops only by ~1% (theoretically),
Magnets effectively resist against loss of magnetization caused by ambient magnetic noise,
By applying a lustrous layer of gold, the element presents an aesthetic look,
Magnets are distinguished by impressive magnetic induction on the active area,
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...
Considering the ability of accurate shaping and adaptation to individualized requirements, magnetic components can be produced in a wide range of shapes and sizes, which amplifies use scope,
Wide application in modern industrial fields – they are used in data components, electric motors, medical equipment, also technologically advanced constructions.
Thanks to efficiency per cm³, small magnets offer high operating force, in miniature format,

Weaknesses

Disadvantages of NdFeB magnets:

To avoid cracks upon strong impacts, we suggest using special steel holders. Such a solution secures the magnet and simultaneously increases its durability.
We warn that neodymium magnets can reduce their strength at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
They rust in a humid environment. For use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
Due to limitations in producing nuts and complex forms in magnets, we recommend using cover - magnetic mechanism.
Health risk to health – tiny shards of magnets are risky, in case of ingestion, which becomes key in the context of child health protection. It is also worth noting that tiny parts of these devices can complicate diagnosis medical in case of swallowing.
Due to complex production process, their price is relatively high,

Pull force analysis

Maximum lifting capacity of the magnet – what it depends on?

Breakaway force was determined for ideal contact conditions, taking into account:

on a block made of structural steel, effectively closing the magnetic flux
possessing a massiveness of min. 10 mm to avoid saturation
characterized by even structure
without the slightest air gap between the magnet and steel
for force acting at a right angle (in the magnet axis)
at conditions approx. 20°C

Lifting capacity in real conditions – factors

Real force is affected by specific conditions, mainly (from priority):

Air gap (betwixt the magnet and the metal), as even a tiny distance (e.g. 0.5 mm) results in a reduction in force by up to 50% (this also applies to varnish, corrosion or dirt).
Loading method – declared lifting capacity refers to detachment vertically. When slipping, the magnet exhibits significantly lower power (typically approx. 20-30% of nominal force).
Element thickness – for full efficiency, the steel must be adequately massive. Paper-thin metal restricts the attraction force (the magnet "punches through" it).
Metal type – different alloys attracts identically. High carbon content weaken the attraction effect.
Surface quality – the smoother and more polished the surface, the larger the contact zone and higher the lifting capacity. Unevenness acts like micro-gaps.
Temperature – temperature increase causes a temporary drop of force. Check the thermal limit for a given model.

Lifting capacity was determined using a steel plate with a smooth surface of suitable thickness (min. 20 mm), under perpendicular detachment force, however under parallel forces the load capacity is reduced by as much as fivefold. Additionally, even a small distance between the magnet’s surface and the plate reduces the load capacity.

Safe handling of neodymium magnets

Crushing force

Danger of trauma: The pulling power is so immense that it can cause hematomas, pinching, and even bone fractures. Protective gloves are recommended.

Heat warning

Standard neodymium magnets (N-type) lose magnetization when the temperature surpasses 80°C. The loss of strength is permanent.

Powerful field

Before use, check safety instructions. Sudden snapping can destroy the magnet or injure your hand. Be predictive.

Precision electronics

Remember: neodymium magnets produce a field that confuses precision electronics. Maintain a separation from your mobile, device, and GPS.

Dust is flammable

Fire hazard: Rare earth powder is explosive. Avoid machining magnets in home conditions as this risks ignition.

Adults only

Only for adults. Tiny parts pose a choking risk, leading to severe trauma. Keep out of reach of children and animals.

Allergy Warning

Some people experience a sensitization to nickel, which is the typical protective layer for NdFeB magnets. Frequent touching may cause skin redness. We recommend use safety gloves.

Electronic hazard

Equipment safety: Strong magnets can damage payment cards and sensitive devices (heart implants, hearing aids, timepieces).

Warning for heart patients

Individuals with a ICD should keep an absolute distance from magnets. The magnetism can stop the functioning of the implant.

Risk of cracking

Despite metallic appearance, neodymium is delicate and not impact-resistant. Do not hit, as the magnet may shatter into hazardous fragments.

Safety First! Want to know more? Read our article: Why are neodymium magnets dangerous?

MP 40x22x10 / N38 - ring magnet

Technical parameters of the product - MP 40x22x10 / N38 - ring magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical simulation of the magnet - report

Table 1: Static pull force (pull vs gap) - power drop MP 40x22x10 / N38

Table 2: Sliding force (wall) MP 40x22x10 / N38

Table 3: Vertical assembly (shearing) - vertical pull MP 40x22x10 / N38

Table 4: Steel thickness (saturation) - power losses MP 40x22x10 / N38

Table 5: Working in heat (stability) - thermal limit MP 40x22x10 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system MP 40x22x10 / N38

Table 7: Protective zones (implants) - precautionary measures MP 40x22x10 / N38

Table 8: Dynamics (cracking risk) - collision effects MP 40x22x10 / N38

Table 9: Coating parameters (durability) MP 40x22x10 / N38

Table 10: Electrical data (Flux) MP 40x22x10 / N38

Table 11: Underwater work (magnet fishing) MP 40x22x10 / N38

1. Vertical hold

2. Steel saturation

3. Heat tolerance

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

Elemental analysis

Sustainability

Pulling force

Field Strength

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Strengths and weaknesses of Nd2Fe14B magnets.

Strengths

Weaknesses

Pull force analysis

Maximum lifting capacity of the magnet – what it depends on?

Lifting capacity in real conditions – factors

Safe handling of neodymium magnets

Crushing force

Heat warning

Powerful field

Precision electronics

Dust is flammable

Adults only

Allergy Warning

Electronic hazard

Warning for heart patients

Risk of cracking

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (pull vs gap) - power drop
MP 40x22x10 / N38

Table 2: Sliding force (wall)
MP 40x22x10 / N38

Table 3: Vertical assembly (shearing) - vertical pull
MP 40x22x10 / N38

Table 4: Steel thickness (saturation) - power losses
MP 40x22x10 / N38

Table 5: Working in heat (stability) - thermal limit
MP 40x22x10 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MP 40x22x10 / N38

Table 7: Protective zones (implants) - precautionary measures
MP 40x22x10 / N38

Table 8: Dynamics (cracking risk) - collision effects
MP 40x22x10 / N38

Table 9: Coating parameters (durability)
MP 40x22x10 / N38

Table 10: Electrical data (Flux)
MP 40x22x10 / N38

Table 11: Underwater work (magnet fishing)
MP 40x22x10 / N38

Strengths and weaknesses of Nd₂Fe₁₄B magnets.