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MP 20x8x5 / 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 030188

GTIN/EAN: 5906301812050

5.00

Diameter

20 mm [±0,1 mm]

internal diameter Ø

8 mm [±0,1 mm]

Height

5 mm [±0,1 mm]

Weight

9.9 g

Magnetization Direction

↑ axial

Load capacity

5.82 kg / 57.06 N

Magnetic Induction

277.16 mT / 2772 Gs

Coating

[NiCuNi] Nickel

see specifications »

3.80 ZŁ with VAT / pcs + price for transport

3.09 ZŁ net + 23% VAT / pcs

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Detailed specification - MP 20x8x5 / N38 - ring magnet

Specification / characteristics - MP 20x8x5 / N38 - ring magnet

properties

properties	values
Cat. no.	030188
GTIN/EAN	5906301812050
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	20 mm [±0,1 mm]
internal diameter Ø	8 mm [±0,1 mm]
Height	5 mm [±0,1 mm]
Weight	9.9 g
Magnetization Direction	↑ axial
Load capacity ~ ?	5.82 kg / 57.06 N
Magnetic Induction ~ ?	277.16 mT / 2772 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MP 20x8x5 / 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 analysis of the product - data

Presented data are the direct effect of a mathematical simulation. Results were calculated on algorithms for the material Nd₂Fe₁₄B. Operational performance may differ. Please consider these calculations as a preliminary roadmap during assembly planning.

Table 1: Static force (force vs distance) - characteristics
MP 20x8x5 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	5917 Gs 591.7 mT	5.82 kg / 12.83 lbs 5820.0 g / 57.1 N	warning
1 mm	5321 Gs 532.1 mT	4.71 kg / 10.38 lbs 4707.4 g / 46.2 N	warning
2 mm	4736 Gs 473.6 mT	3.73 kg / 8.22 lbs 3729.5 g / 36.6 N	warning
3 mm	4184 Gs 418.4 mT	2.91 kg / 6.42 lbs 2910.0 g / 28.5 N	warning
5 mm	3216 Gs 321.6 mT	1.72 kg / 3.79 lbs 1719.3 g / 16.9 N	safe
10 mm	1650 Gs 165.0 mT	0.45 kg / 1.00 lbs 452.4 g / 4.4 N	safe
15 mm	907 Gs 90.7 mT	0.14 kg / 0.30 lbs 136.8 g / 1.3 N	safe
20 mm	544 Gs 54.4 mT	0.05 kg / 0.11 lbs 49.2 g / 0.5 N	safe
30 mm	240 Gs 24.0 mT	0.01 kg / 0.02 lbs 9.6 g / 0.1 N	safe
50 mm	75 Gs 7.5 mT	0.00 kg / 0.00 lbs 0.9 g / 0.0 N	safe

Pulling power decreases drastically per each millimeter of distance. Remember that even a very thin break (e.g., dirt, varnish, dust) noticeably weakens the grip. Magnetic products operate optimally at the point of direct contact; distance weakens the force. See how flashily the pull force fall, when the product does not adhere tightly to the steel surface. When planning the assembly, discard unnecessary gaps.

Table 2: Sliding capacity (vertical surface)
MP 20x8x5 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	1.16 kg / 2.57 lbs 1164.0 g / 11.4 N
1 mm	Stal (~0.2)	0.94 kg / 2.08 lbs 942.0 g / 9.2 N
2 mm	Stal (~0.2)	0.75 kg / 1.64 lbs 746.0 g / 7.3 N
3 mm	Stal (~0.2)	0.58 kg / 1.28 lbs 582.0 g / 5.7 N
5 mm	Stal (~0.2)	0.34 kg / 0.76 lbs 344.0 g / 3.4 N
10 mm	Stal (~0.2)	0.09 kg / 0.20 lbs 90.0 g / 0.9 N
15 mm	Stal (~0.2)	0.03 kg / 0.06 lbs 28.0 g / 0.3 N
20 mm	Stal (~0.2)	0.01 kg / 0.02 lbs 10.0 g / 0.1 N
30 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 2.0 g / 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N

This section shows the approximate weight limit required to cause the slippage of the magnet downwards against a vertical metal surface (assuming standard friction). The holding force is relative to the distance between the magnet and the surface.

Table 3: Vertical assembly (sliding) - vertical pull
MP 20x8x5 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	1.75 kg / 3.85 lbs 1746.0 g / 17.1 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	1.16 kg / 2.57 lbs 1164.0 g / 11.4 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.58 kg / 1.28 lbs 582.0 g / 5.7 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	2.91 kg / 6.42 lbs 2910.0 g / 28.5 N

When mounting a holder on a upright plane (e.g., a fridge), it will only hold barely approx. 20%-30% of nominal attraction strength. Gravitational force as well as a low friction coefficient influence the fact that holders move down easier than they detach. Want to create a vertical fastening? Remember that the shear force is much weaker than the perpendicular breakaway force. On a painted metal, the magnet will slide down under a much lighter cargo. Utilizing a rubberized pad can drastically improve the result.

Table 4: Material efficiency (saturation) - sheet metal selection
MP 20x8x5 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.58 kg / 1.28 lbs 582.0 g / 5.7 N
1 mm	25%	1.46 kg / 3.21 lbs 1455.0 g / 14.3 N
2 mm	50%	2.91 kg / 6.42 lbs 2910.0 g / 28.5 N
3 mm	75%	4.37 kg / 9.62 lbs 4365.0 g / 42.8 N
5 mm	100%	5.82 kg / 12.83 lbs 5820.0 g / 57.1 N
10 mm	100%	5.82 kg / 12.83 lbs 5820.0 g / 57.1 N
11 mm	100%	5.82 kg / 12.83 lbs 5820.0 g / 57.1 N
12 mm	100%	5.82 kg / 12.83 lbs 5820.0 g / 57.1 N

A thin sheet is unable to take in the full magnetic flux, which squanders power of the magnet. If you install a neodymium to a weak sheet, the field will penetrate right through and the pull force will drop sharply. To squeeze 100% of this magnet's potential, you require a sufficiently solid element of metal. The material oversaturation causes that on delicate walls (e.g., thin profiles), the holder shows lower pull force. We advise picking the steel thickness from these parameters.

Table 5: Thermal resistance (stability) - power drop
MP 20x8x5 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	5.82 kg / 12.83 lbs 5820.0 g / 57.1 N	OK
40 °C	-2.2%	5.69 kg / 12.55 lbs 5692.0 g / 55.8 N	OK
60 °C	-4.4%	5.56 kg / 12.27 lbs 5563.9 g / 54.6 N	OK
80 °C	-6.6%	5.44 kg / 11.98 lbs 5435.9 g / 53.3 N
100 °C	-28.8%	4.14 kg / 9.14 lbs 4143.8 g / 40.7 N

Standard neodymium magnets lose strength past the thermal threshold. Avoid high temperatures – excessive heat can irreversibly damage this magnet. With increasing heat, the neodymium's force briefly decreases. Do not use this product close to ovens exceeding its safe range. Too high temperature will result in irreversible degradation of magnetic properties.

*Important note: Heat tolerance depends not only on the material grade, and the Permeance Coefficient Pc. Low-profile magnets (low permeance coefficient) are more susceptible to demagnetization at lower temperatures than taller cylinders. Red status in the table points to permanent field degradation for this specific geometry.

Table 6: Two magnets (repulsion) - forces in the system
MP 20x8x5 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	54.03 kg / 119.11 lbs 6 121 Gs	8.10 kg / 17.87 lbs 8104 g / 79.5 N	N/A
1 mm	48.76 kg / 107.50 lbs 11 242 Gs	7.31 kg / 16.13 lbs 7314 g / 71.8 N	43.89 kg / 96.75 lbs ~0 Gs
2 mm	43.70 kg / 96.34 lbs 10 642 Gs	6.55 kg / 14.45 lbs 6555 g / 64.3 N	39.33 kg / 86.71 lbs ~0 Gs
3 mm	38.98 kg / 85.94 lbs 10 051 Gs	5.85 kg / 12.89 lbs 5847 g / 57.4 N	35.08 kg / 77.34 lbs ~0 Gs
5 mm	30.63 kg / 67.54 lbs 8 910 Gs	4.60 kg / 10.13 lbs 4595 g / 45.1 N	27.57 kg / 60.78 lbs ~0 Gs
10 mm	15.96 kg / 35.19 lbs 6 432 Gs	2.39 kg / 5.28 lbs 2394 g / 23.5 N	14.36 kg / 31.67 lbs ~0 Gs
20 mm	4.20 kg / 9.26 lbs 3 299 Gs	0.63 kg / 1.39 lbs 630 g / 6.2 N	3.78 kg / 8.33 lbs ~0 Gs
50 mm	0.19 kg / 0.42 lbs 702 Gs	0.03 kg / 0.06 lbs 29 g / 0.3 N	0.17 kg / 0.38 lbs ~0 Gs
60 mm	0.09 kg / 0.20 lbs 480 Gs	0.01 kg / 0.03 lbs 13 g / 0.1 N	0.08 kg / 0.18 lbs ~0 Gs
70 mm	0.05 kg / 0.10 lbs 342 Gs	0.01 kg / 0.01 lbs 7 g / 0.1 N	0.04 kg / 0.09 lbs ~0 Gs
80 mm	0.02 kg / 0.05 lbs 253 Gs	0.00 kg / 0.01 lbs 4 g / 0.0 N	0.02 kg / 0.05 lbs ~0 Gs
90 mm	0.01 kg / 0.03 lbs 193 Gs	0.00 kg / 0.00 lbs 2 g / 0.0 N	0.01 kg / 0.03 lbs ~0 Gs
100 mm	0.01 kg / 0.02 lbs 150 Gs	0.00 kg / 0.00 lbs 1 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs

Two magnets interact from a much further distance than a neodymium and metal combination. Such a system of two magnets produces a massive flux and a wider radius of operation. Want to build a solid fastener? Use a pair of magnets instead of one magnet and a steel. Be careful that when attracting two neodymiums, the pinch force is extreme. The repulsion force is a bit weaker than the connection force, but still large.
*Flux density for N-N configuration reaches ~0 Gs at the geometric center between the magnets (resulting from vector opposition).
Note: Calculations apply to sliding force of two identical magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Protective zones (implants) - warnings
MP 20x8x5 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	14.5 cm
Hearing aid	10 Gs (1.0 mT)	11.5 cm
Timepiece	20 Gs (2.0 mT)	9.0 cm
Phone / Smartphone	40 Gs (4.0 mT)	6.5 cm
Remote	50 Gs (5.0 mT)	6.0 cm
Payment card	400 Gs (40.0 mT)	2.5 cm
HDD hard drive	600 Gs (60.0 mT)	2.0 cm

Extremely neodym field poses a large risk to electronic devices and pacemakers. These neodymiums generate a flux that destroys function of sensitive medical devices. Notice: the invisible magnetic field acts through matter and plastic. Exceptional care must be taken by people with hearing aids and drug dispensers. The risk also applies to: automatic timepieces, remotes, membranes, and screens. Avoid contact with magnetic cards, hard drives, or sensitive navigation tools.

Table 8: Impact energy (cracking risk) - collision effects
MP 20x8x5 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	25.61 km/h (7.11 m/s)	0.25 J
30 mm	42.40 km/h (11.78 m/s)	0.69 J
50 mm	54.68 km/h (15.19 m/s)	1.14 J
100 mm	77.33 km/h (21.48 m/s)	2.28 J

NdFeB products are delicate – a strong collision with metal risks their cracking. Watch the impact speed – a magnet released freely becomes dangerous. Kinetic force can destroy the magnet or injury to skin. Hold the magnet firmly during installation so it doesn't hit violently against the steel surface. A collision at high speed ends with a crack of the magnet. Wear eye protection when working with large magnets.

Table 9: Corrosion resistance
MP 20x8x5 / 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. Note the thickness of the protective layer.

Table 10: Electrical data (Flux)
MP 20x8x5 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	16 116 Mx	161.2 µWb
P_c Coefficient	1.13	High (Stable)

Total magnetic flux emitted by the pole surface. Essential parameter in coil applications and motors. P_c value determines the magnet's operating point.

Table 11: Hydrostatics and buoyancy
MP 20x8x5 / N38

Environment	Effective steel pull	Effect
Air (land)	5.82 kg	Standard
Water (riverbed)	6.66 kg (+0.84 kg buoyancy gain)	+14.5%

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

In water, the magnet feels stronger thanks to Archimedes' principle. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Shear force

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

2. Efficiency vs thickness

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

3. Thermal stability

*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) = 1.13

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 specification and ecology

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%

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: 030188-2026

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UMS 75x19x10.5x18 / N38 - conical magnetic holder

125.56 ZŁ brutto / pcs

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. This product with a force of 5.82 kg works great as a door latch, speaker holder, or spacer element in devices.

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. 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 8 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.

This model is characterized by dimensions Ø20x5 mm and a weight of 9.9 g. The pulling force of this model is an impressive 5.82 kg, which translates to 57.06 N in newtons. The mounting hole diameter is precisely 8 mm.

The poles are located on the planes with holes, not on the sides of the ring. If you want two such magnets screwed with cones facing each other (faces) to attract, you must connect them with opposite poles (N to S). When ordering a larger quantity, magnets are usually packed in stacks, where they are already naturally paired.

Advantages and disadvantages of Nd₂Fe₁₄B magnets.

Strengths

Besides their stability, neodymium magnets are valued for these benefits:

They do not lose magnetism, even during approximately ten years – the decrease in lifting capacity is only ~1% (based on measurements),
They have excellent resistance to weakening of magnetic properties when exposed to opposing magnetic fields,
In other words, due to the glossy surface of gold, the element looks attractive,
The surface of neodymium magnets generates a unique magnetic field – this is a distinguishing feature,
Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
Thanks to versatility in constructing and the ability to modify to specific needs,
Huge importance in modern technologies – they find application in computer drives, brushless drives, medical devices, also modern systems.
Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in compact dimensions, which allows their use in miniature devices

Limitations

Cons of neodymium magnets and proposals for their use:

They are prone to damage upon heavy impacts. To avoid cracks, it is worth securing magnets in a protective case. Such protection not only shields 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 suggest our specialized [AH] magnets, which work effectively even at 230°C.
When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as those in rubber or plastics, which prevent oxidation as well as corrosion.
We suggest casing - magnetic mechanism, due to difficulties in realizing threads inside the magnet and complicated shapes.
Potential hazard to health – tiny shards of magnets pose a threat, in case of ingestion, which gains importance in the aspect of protecting the youngest. It is also worth noting that small components of these products can disrupt the diagnostic process medical in case of swallowing.
With budget limitations the cost of neodymium magnets can be a barrier,

Holding force characteristics

Optimal lifting capacity of a neodymium magnet – what contributes to it?

Holding force of 5.82 kg is a result of laboratory testing performed under specific, ideal conditions:

on a block made of mild steel, effectively closing the magnetic field
with a thickness of at least 10 mm
with a plane free of scratches
without the slightest air gap between the magnet and steel
for force applied at a right angle (in the magnet axis)
at conditions approx. 20°C

Practical lifting capacity: influencing factors

Real force is affected by working environment parameters, including (from most important):

Gap between surfaces – every millimeter of distance (caused e.g. by varnish or unevenness) diminishes the pulling force, often by half at just 0.5 mm.
Force direction – declared lifting capacity refers to pulling vertically. When applying parallel force, the magnet exhibits significantly lower power (often approx. 20-30% of nominal force).
Plate thickness – insufficiently thick plate does not accept the full field, causing part of the power to be escaped into the air.
Plate material – mild steel gives the best results. Alloy steels reduce magnetic properties and holding force.
Surface quality – the more even the plate, the larger the contact zone and stronger the hold. Unevenness acts like micro-gaps.
Temperature – heating the magnet results in weakening of induction. Check the maximum operating temperature for a given model.

Lifting capacity was measured by applying a polished steel plate of optimal thickness (min. 20 mm), under perpendicular pulling force, however under attempts to slide the magnet the load capacity is reduced by as much as 75%. Additionally, even a small distance between the magnet’s surface and the plate decreases the holding force.

Precautions when working with neodymium magnets

Physical harm

Mind your fingers. Two powerful magnets will join instantly with a force of several hundred kilograms, crushing anything in their path. Be careful!

Shattering risk

Neodymium magnets are sintered ceramics, which means they are very brittle. Clashing of two magnets will cause them cracking into small pieces.

Swallowing risk

Adult use only. Small elements pose a choking risk, causing intestinal necrosis. Keep away from children and animals.

Sensitization to coating

Studies show that nickel (the usual finish) is a potent allergen. If you have an allergy, prevent touching magnets with bare hands or choose versions in plastic housing.

Electronic devices

Data protection: Neodymium magnets can ruin payment cards and sensitive devices (pacemakers, hearing aids, mechanical watches).

Phone sensors

A powerful magnetic field negatively affects the functioning of magnetometers in phones and GPS navigation. Do not bring magnets close to a smartphone to avoid breaking the sensors.

Fire risk

Powder produced during grinding of magnets is self-igniting. Avoid drilling into magnets unless you are an expert.

Powerful field

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

Heat warning

Monitor thermal conditions. Heating the magnet to high heat will permanently weaken its magnetic structure and pulling force.

Health Danger

For implant holders: Strong magnetic fields affect electronics. Keep minimum 30 cm distance or ask another person to work with the magnets.

Important! More info about risks in the article: Safety of working with magnets.

MP 20x8x5 / N38 - ring magnet

Detailed specification - MP 20x8x5 / N38 - ring magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical analysis of the product - data

Table 1: Static force (force vs distance) - characteristics MP 20x8x5 / N38

Table 2: Sliding capacity (vertical surface) MP 20x8x5 / N38

Table 3: Vertical assembly (sliding) - vertical pull MP 20x8x5 / N38

Table 4: Material efficiency (saturation) - sheet metal selection MP 20x8x5 / N38

Table 5: Thermal resistance (stability) - power drop MP 20x8x5 / N38

Table 6: Two magnets (repulsion) - forces in the system MP 20x8x5 / N38

Table 7: Protective zones (implants) - warnings MP 20x8x5 / N38

Table 8: Impact energy (cracking risk) - collision effects MP 20x8x5 / N38

Table 9: Corrosion resistance MP 20x8x5 / N38

Table 10: Electrical data (Flux) MP 20x8x5 / N38

Table 11: Hydrostatics and buoyancy MP 20x8x5 / N38

1. Shear force

2. Efficiency vs thickness

3. Thermal stability

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

Chemical composition

Sustainability

Magnet pull force

Magnetic Field

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Advantages and disadvantages of Nd2Fe14B magnets.

Strengths

Limitations

Holding force characteristics

Optimal lifting capacity of a neodymium magnet – what contributes to it?

Practical lifting capacity: influencing factors

Precautions when working with neodymium magnets

Physical harm

Shattering risk

Swallowing risk

Sensitization to coating

Electronic devices

Phone sensors

Fire risk

Powerful field

Heat warning

Health Danger

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs distance) - characteristics
MP 20x8x5 / N38

Table 2: Sliding capacity (vertical surface)
MP 20x8x5 / N38

Table 3: Vertical assembly (sliding) - vertical pull
MP 20x8x5 / N38

Table 4: Material efficiency (saturation) - sheet metal selection
MP 20x8x5 / N38

Table 5: Thermal resistance (stability) - power drop
MP 20x8x5 / N38

Table 6: Two magnets (repulsion) - forces in the system
MP 20x8x5 / N38

Table 7: Protective zones (implants) - warnings
MP 20x8x5 / N38

Table 8: Impact energy (cracking risk) - collision effects
MP 20x8x5 / N38

Table 9: Corrosion resistance
MP 20x8x5 / N38

Table 10: Electrical data (Flux)
MP 20x8x5 / N38

Table 11: Hydrostatics and buoyancy
MP 20x8x5 / N38

Advantages and disadvantages of Nd₂Fe₁₄B magnets.