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MP 40x22x10 / 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 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 specifications »

40.59 ZŁ with VAT / pcs + price for transport

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Technical 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 product - report

Presented values represent the result of a mathematical calculation. Results are based on algorithms for the material Nd₂Fe₁₄B. Actual conditions may differ. Please consider these calculations as a reference point when designing systems.

Table 1: Static pull force (force vs distance) - 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 lbs 19340.0 g / 189.7 N	dangerous!
1 mm	5005 Gs 500.5 mT	17.46 kg / 38.48 lbs 17455.9 g / 171.2 N	dangerous!
2 mm	4739 Gs 473.9 mT	15.65 kg / 34.50 lbs 15647.5 g / 153.5 N	dangerous!
3 mm	4475 Gs 447.5 mT	13.95 kg / 30.75 lbs 13950.0 g / 136.8 N	dangerous!
5 mm	3960 Gs 396.0 mT	10.93 kg / 24.09 lbs 10927.7 g / 107.2 N	dangerous!
10 mm	2832 Gs 283.2 mT	5.59 kg / 12.32 lbs 5589.2 g / 54.8 N	medium risk
15 mm	1990 Gs 199.0 mT	2.76 kg / 6.09 lbs 2760.5 g / 27.1 N	medium risk
20 mm	1407 Gs 140.7 mT	1.38 kg / 3.04 lbs 1379.2 g / 13.5 N	low risk
30 mm	745 Gs 74.5 mT	0.39 kg / 0.85 lbs 386.2 g / 3.8 N	low risk
50 mm	268 Gs 26.8 mT	0.05 kg / 0.11 lbs 50.1 g / 0.5 N	low risk

Pulling power drops drastically per each millimeter of spacing. Note that even the smallest gap (e.g., dirt, paint, dust) strongly weakens the grip. Magnetic products work strongest at the point of direct contact; gap kills the power. Observe how rapidly the pull force fall, when the magnet does not adhere directly to the steel surface. When planning the assembly, avoid unnecessary gaps.

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

The following data presents the approximate holding capacity necessary to start the slippage of the magnet vertically along a upright metal surface (considering standard friction coefficient). This value varies with the separation distance 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 lbs 5802.0 g / 56.9 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	3.87 kg / 8.53 lbs 3868.0 g / 37.9 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	1.93 kg / 4.26 lbs 1934.0 g / 19.0 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	9.67 kg / 21.32 lbs 9670.0 g / 94.9 N

When hanging a holder on a upright plane (e.g., a board), it will only hold barely approx. 20%-30% of its nominal power. Gravitational force and a low friction coefficient influence the fact that magnets move down faster than they pop off the substrate. Planning a wall mount? Remember that the sliding force is significantly lower than the maximum static pull force. On a smooth steel, the magnet will give way down under a significantly smaller cargo. Utilizing a rubberized pad can drastically raise the stability.

Table 4: Material efficiency (substrate influence) - 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 lbs 967.0 g / 9.5 N
1 mm	13%	2.42 kg / 5.33 lbs 2417.5 g / 23.7 N
2 mm	25%	4.84 kg / 10.66 lbs 4835.0 g / 47.4 N
3 mm	38%	7.25 kg / 15.99 lbs 7252.5 g / 71.1 N
5 mm	63%	12.09 kg / 26.65 lbs 12087.5 g / 118.6 N
10 mm	100%	19.34 kg / 42.64 lbs 19340.0 g / 189.7 N
11 mm	100%	19.34 kg / 42.64 lbs 19340.0 g / 189.7 N
12 mm	100%	19.34 kg / 42.64 lbs 19340.0 g / 189.7 N

A thin metal plate is incapable of focus the full magnetic flux, which weakens actual performance of the holder. Should you mount a strong magnet to a too thin substrate, the field will pass right through and the pull force will drop sharply. To utilize 100% of this magnet's power, you need a suitably thick element of steel. The saturation phenomenon causes that on thin elements (e.g., car bodies), the holder holds weaker. We recommend selecting the steel dimension from these parameters.

Table 5: Thermal stability (material behavior) - power drop
MP 40x22x10 / N38

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

Standard neodymium magnets lose parameters above the temperature limit. Avoid high temperatures – excessive heat can irreversibly destroy this product. With every degree above norm, the neodymium's force momentarily decreases. Refrain from using this magnet in hot environments exceeding its working range. Too high temperature will result in permanent loss of magnetism.

*Engineering note: Temperature resistance depends not only on the material grade, as well as the dimension ratios. Flat magnets (low Pc) are more susceptible to demagnetization sooner than long magnets. Red status in the table indicates a risk of irreversible loss for this specific geometry.

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

Two strong neodymiums interact from a wider radius than a neodymium and metal combination. The connection of magnet-to-magnet generates a stronger field and a wider radius of action. Designing a powerful holder? Utilize two neodymiums instead of a neodymium and a steel. Exercise caution that when attracting two neodymiums, the pinch force is huge. The levitation is a bit weaker than the connection force, but still impressive.
*Flux density between like poles reaches ~0 Gs at the geometric center between the magnets (caused by magnetic field nullification).
* Calculations apply to shear force of dual same magnets (friction ~0.15 for Ni-Ni coating).

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
Mechanical watch	20 Gs (2.0 mT)	14.5 cm
Phone / Smartphone	40 Gs (4.0 mT)	11.0 cm
Car key	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

Powerful magnet radiation is a serious hazard to IT equipment as well as medical implants. These magnets produce a flux that prevents correct functioning of digital equipment. Be aware: the unseen radiation acts through matter and glass. Increased vigilance must be taken by people with cochlear implants and insulin pumps. The risk also applies to: automatic timepieces, car keys, membranes, and displays. Avoid contact with magnetic cards, hard drives, or sensitive navigation tools.

Table 8: Dynamics (kinetic energy) - 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 causes immediate chipping. Watch the impact speed – a neodymium left loose turns into a projectile. Striking energy can destroy the magnet or injury to fingers. Be sure to control the product during bringing near metal so it doesn't hit with great force against the steel surface. A collision at high speed means shattering of the neodymium. Wear safety glasses 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)

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 40x22x10 / N38

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

Total magnetic flux passing through the pole surface. Essential parameter in coil applications and motors. The P_c coefficient determines 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%

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

Water displaces steel, making heavy objects slightly lighter. However, remember the water resistance when pulling the rope quickly.

1. Wall mount (shear)

*Warning: On a vertical wall, the magnet retains merely ~20% of its nominal pull.

2. Steel thickness impact

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

3. Temperature resistance

*For N38 grade, the safety 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.

Technical and environmental data

Material specification

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

Magnet Unit Converter

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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. Thanks to the hole (often for a screw), this model enables easy screwing to wood, wall, plastic, or metal. 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. 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. In the place of the mounting hole, the coating is thinner and easily scratched when tightening the screw, which will become a corrosion focus. This product is dedicated for inside building use. For outdoor applications, we recommend choosing magnets in hermetic housing or additional protection with varnish.

A screw or bolt with a thread diameter smaller than 22 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. Aesthetic mounting requires selecting the appropriate head size.

It is a magnetic ring with a diameter of 40 mm and thickness 10 mm. The key parameter here is the holding force 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. In the case of connecting two rings, make sure one is turned the right way. When ordering a larger quantity, magnets are usually packed in stacks, where they are already naturally paired.

Advantages as well as disadvantages of Nd₂Fe₁₄B magnets.

Advantages

Besides their tremendous pulling force, neodymium magnets offer the following advantages:

They retain attractive force for almost ten years – the loss is just ~1% (in theory),
Neodymium magnets are characterized by remarkably resistant to demagnetization caused by external interference,
By covering with a reflective layer of silver, the element gains an nice look,
They feature high magnetic induction at the operating surface, which improves attraction properties,
Thanks to resistance to high temperature, they are capable of working (depending on the shape) even at temperatures up to 230°C and higher...
Possibility of accurate shaping as well as adjusting to complex conditions,
Wide application in modern industrial fields – they find application in mass storage devices, electromotive mechanisms, precision medical tools, also other advanced devices.
Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Disadvantages

Disadvantages of neodymium magnets:

At strong impacts they can break, therefore we recommend placing them in special holders. A metal housing provides additional protection against damage and increases the magnet's durability.
Neodymium magnets lose their strength 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
Magnets exposed to a humid environment can rust. Therefore when using outdoors, we recommend using waterproof magnets made of rubber, plastic or other material protecting against moisture
Limited ability of creating nuts in the magnet and complex shapes - recommended is casing - magnet mounting.
Potential hazard related to microscopic parts of magnets are risky, if swallowed, which gains importance in the aspect of protecting the youngest. Additionally, tiny parts of these products can be problematic in diagnostics medical after entering the body.
Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Pull force analysis

Breakaway strength of the magnet in ideal conditions – what affects it?

Information about lifting capacity is the result of a measurement for the most favorable conditions, assuming:

using a sheet made of low-carbon steel, functioning as a circuit closing element
with a cross-section of at least 10 mm
with a plane cleaned and smooth
without any clearance between the magnet and steel
during pulling in a direction vertical to the mounting surface
in temp. approx. 20°C

Practical lifting capacity: influencing factors

Effective lifting capacity is affected by specific conditions, including (from most important):

Clearance – existence of foreign body (rust, tape, gap) interrupts the magnetic circuit, which lowers power rapidly (even by 50% at 0.5 mm).
Pull-off angle – remember that the magnet has greatest strength perpendicularly. Under sliding down, 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. Part of the magnetic field passes through the material instead of generating force.
Metal type – not every steel reacts the same. High carbon content weaken the attraction effect.
Plate texture – smooth surfaces guarantee perfect abutment, which improves force. Rough surfaces reduce efficiency.
Thermal factor – high temperature reduces pulling force. Exceeding the limit temperature can permanently damage the magnet.

Holding force was measured on the plate surface of 20 mm thickness, when the force acted perpendicularly, however under attempts to slide the magnet the lifting capacity is smaller. In addition, even a slight gap between the magnet’s surface and the plate lowers the load capacity.

Safety rules for work with neodymium magnets

Crushing force

Danger of trauma: The attraction force is so great that it can result in hematomas, crushing, and broken bones. Protective gloves are recommended.

GPS and phone interference

A strong magnetic field interferes with the operation of compasses in phones and GPS navigation. Keep magnets close to a smartphone to avoid breaking the sensors.

Combustion hazard

Fire warning: Neodymium dust is highly flammable. Do not process magnets without safety gear as this may cause fire.

Metal Allergy

Warning for allergy sufferers: The nickel-copper-nickel coating contains nickel. If an allergic reaction occurs, immediately stop handling magnets and wear gloves.

Choking Hazard

Only for adults. Tiny parts can be swallowed, causing severe trauma. Store away from kids and pets.

Permanent damage

Watch the temperature. Heating the magnet to high heat will destroy its magnetic structure and strength.

Conscious usage

Be careful. Rare earth magnets act from a distance and connect with massive power, often faster than you can move away.

Medical interference

Warning for patients: Strong magnetic fields disrupt electronics. Keep minimum 30 cm distance or ask another person to handle the magnets.

Material brittleness

Beware of splinters. Magnets can fracture upon violent connection, launching shards into the air. Eye protection is mandatory.

Protect data

Very strong magnetic fields can corrupt files on credit cards, hard drives, and other magnetic media. Stay away of at least 10 cm.

Attention! Looking for details? Read our article: Why are neodymium magnets dangerous?

MP 40x22x10 / N38 - ring magnet

Technical 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 product - report

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

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

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

Table 4: Material efficiency (substrate influence) - power losses MP 40x22x10 / N38

Table 5: Thermal stability (material behavior) - power drop 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 (kinetic energy) - collision effects MP 40x22x10 / N38

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

Table 10: Construction data (Pc) MP 40x22x10 / N38

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

1. Wall mount (shear)

2. Steel thickness impact

3. Temperature resistance

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

Material specification

Sustainability

Force (pull)

Magnetic Field

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Advantages as well as disadvantages of Nd2Fe14B magnets.

Advantages

Disadvantages

Pull force analysis

Breakaway strength of the magnet in ideal conditions – what affects it?

Practical lifting capacity: influencing factors

Safety rules for work with neodymium magnets

Crushing force

GPS and phone interference

Combustion hazard

Metal Allergy

Choking Hazard

Permanent damage

Conscious usage

Medical interference

Material brittleness

Protect data

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

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

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

Table 4: Material efficiency (substrate influence) - power losses
MP 40x22x10 / N38

Table 5: Thermal stability (material behavior) - power drop
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 (kinetic energy) - collision effects
MP 40x22x10 / N38

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

Table 10: Construction data (P_c)
MP 40x22x10 / N38

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

Advantages as well as disadvantages of Nd₂Fe₁₄B magnets.