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MP 20x5x5 / 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 030186

GTIN/EAN: 5906301812036

5.00

Diameter

20 mm [±0,1 mm]

internal diameter Ø

5 mm [±0,1 mm]

Height

5 mm [±0,1 mm]

Weight

11.04 g

Magnetization Direction

↑ axial

Load capacity

6.49 kg / 63.68 N

Magnetic Induction

277.16 mT / 2772 Gs

Coating

[NiCuNi] Nickel

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Force along with shape of a neodymium magnet can be reviewed using our modular calculator.

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Technical specification of the product - MP 20x5x5 / N38 - ring magnet

Specification / characteristics - MP 20x5x5 / N38 - ring magnet

properties

properties	values
Cat. no.	030186
GTIN/EAN	5906301812036
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	5 mm [±0,1 mm]
Height	5 mm [±0,1 mm]
Weight	11.04 g
Magnetization Direction	↑ axial
Load capacity ~ ?	6.49 kg / 63.68 N
Magnetic Induction ~ ?	277.16 mT / 2772 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MP 20x5x5 / 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

Engineering simulation of the assembly - data

These values constitute the outcome of a physical simulation. Values were calculated on algorithms for the material Nd₂Fe₁₄B. Actual parameters may differ from theoretical values. Please consider these calculations as a reference point during assembly planning.

Table 1: Static force (pull vs distance) - interaction chart
MP 20x5x5 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	5917 Gs 591.7 mT	6.49 kg / 14.31 LBS 6490.0 g / 63.7 N	warning
1 mm	5321 Gs 532.1 mT	5.25 kg / 11.57 LBS 5249.3 g / 51.5 N	warning
2 mm	4736 Gs 473.6 mT	4.16 kg / 9.17 LBS 4158.8 g / 40.8 N	warning
3 mm	4184 Gs 418.4 mT	3.25 kg / 7.15 LBS 3245.0 g / 31.8 N	warning
5 mm	3216 Gs 321.6 mT	1.92 kg / 4.23 LBS 1917.2 g / 18.8 N	safe
10 mm	1650 Gs 165.0 mT	0.50 kg / 1.11 LBS 504.5 g / 4.9 N	safe
15 mm	907 Gs 90.7 mT	0.15 kg / 0.34 LBS 152.6 g / 1.5 N	safe
20 mm	544 Gs 54.4 mT	0.05 kg / 0.12 LBS 54.9 g / 0.5 N	safe
30 mm	240 Gs 24.0 mT	0.01 kg / 0.02 LBS 10.7 g / 0.1 N	safe
50 mm	75 Gs 7.5 mT	0.00 kg / 0.00 LBS 1.0 g / 0.0 N	safe

Pulling power drops significantly per each millimeter of gap. Remember that even the smallest gap (e.g., contamination, paint, veneer) significantly reduces the pull force. Magnets hold most effectively in perfect adhesion; gap drastically cuts the force. See how quickly the pull force fall, when the product does not adhere directly to the steel surface. When designing the arrangement, avoid redundant distances.

Table 2: Shear hold (vertical surface)
MP 20x5x5 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	1.30 kg / 2.86 LBS 1298.0 g / 12.7 N
1 mm	Stal (~0.2)	1.05 kg / 2.31 LBS 1050.0 g / 10.3 N
2 mm	Stal (~0.2)	0.83 kg / 1.83 LBS 832.0 g / 8.2 N
3 mm	Stal (~0.2)	0.65 kg / 1.43 LBS 650.0 g / 6.4 N
5 mm	Stal (~0.2)	0.38 kg / 0.85 LBS 384.0 g / 3.8 N
10 mm	Stal (~0.2)	0.10 kg / 0.22 LBS 100.0 g / 1.0 N
15 mm	Stal (~0.2)	0.03 kg / 0.07 LBS 30.0 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 indicates the estimated force sufficient to start the sliding of the magnet downwards against a vertical steel plate (considering standard friction coefficient). The holding force is a function of the separation distance between the magnet and the metal.

Table 3: Wall mounting (sliding) - vertical pull
MP 20x5x5 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	1.95 kg / 4.29 LBS 1947.0 g / 19.1 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	1.30 kg / 2.86 LBS 1298.0 g / 12.7 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.65 kg / 1.43 LBS 649.0 g / 6.4 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	3.25 kg / 7.15 LBS 3245.0 g / 31.8 N

When mounting a element on a vertical surface (e.g., a board), it will only hold only approx. 1/5 of nominal attraction strength. Gravity as well as a weak degree of grip mean that products slide down easier than they pop off the substrate. Designing a vertical fastening? Remember that the shear force is noticeably lower than the perpendicular breakaway force. On a smooth steel, the holder will give way down under a noticeably lighter load. Using a rubber layer can significantly increase the grip.

Table 4: Steel thickness (substrate influence) - power losses
MP 20x5x5 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.65 kg / 1.43 LBS 649.0 g / 6.4 N
1 mm	25%	1.62 kg / 3.58 LBS 1622.5 g / 15.9 N
2 mm	50%	3.25 kg / 7.15 LBS 3245.0 g / 31.8 N
3 mm	75%	4.87 kg / 10.73 LBS 4867.5 g / 47.8 N
5 mm	100%	6.49 kg / 14.31 LBS 6490.0 g / 63.7 N
10 mm	100%	6.49 kg / 14.31 LBS 6490.0 g / 63.7 N
11 mm	100%	6.49 kg / 14.31 LBS 6490.0 g / 63.7 N
12 mm	100%	6.49 kg / 14.31 LBS 6490.0 g / 63.7 N

A thin sheet cannot take in the entire magnetic field, which weakens actual performance of the magnet. Should you attach a powerful product to a too thin substrate, the flux will pass right through and the pull force will drop sharply. To achieve full efficiency of this magnet's power, you need a suitably thick element of steel. The material oversaturation means that on thin elements (e.g., car bodies), the product holds weaker. We recommend selecting the steel cross-section based on the following data.

Table 5: Thermal resistance (stability) - thermal limit
MP 20x5x5 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	6.49 kg / 14.31 LBS 6490.0 g / 63.7 N	OK
40 °C	-2.2%	6.35 kg / 13.99 LBS 6347.2 g / 62.3 N	OK
60 °C	-4.4%	6.20 kg / 13.68 LBS 6204.4 g / 60.9 N	OK
80 °C	-6.6%	6.06 kg / 13.36 LBS 6061.7 g / 59.5 N
100 °C	-28.8%	4.62 kg / 10.19 LBS 4620.9 g / 45.3 N

Ordinary NdFeB products lose strength after exceeding the maximum temperature. Protect against heat – excessive heat can irreversibly destroy this magnet. With every degree above norm, the magnet's power temporarily decreases. Refrain from using this product close to ovens higher than its operating temperature limit. Ignoring the limit will result in permanent loss of magnetism.

*Technical advisory: Thermal stability depends not only on the material grade, but also on the magnet's shape. Thin magnets (pancake types) are more susceptible to demagnetization sooner compared to rod magnets. Red status in the table signals permanent field degradation for this particular item.

Table 6: Two magnets (attraction) - field collision
MP 20x5x5 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Sliding 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 attract each other from a significantly greater distance than a neodymium and metal combination. The connection of two magnets produces a massive flux and a wider radius of action. Want to build a powerful holder? Utilize two neodymiums instead of a neodymium and a striker plate. Be careful that when connecting a pair of magnets, the pinch force is massive. The levitation is slightly lower than the connection force, but still significant.
*Field value for N-N configuration is approximately ~0 Gs at the midpoint between the magnets (resulting from vector opposition).
Note: Estimates refer to shear force of a pair of same magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Protective zones (implants) - precautionary measures
MP 20x5x5 / 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
Mechanical watch	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

A strong magnetic field is a serious hazard to electronics as well as medical implants. These magnets generate a field that prevents correct functioning of sensitive medical devices. Notice: the invisible magnetic field acts through matter and housings. Special caution must be taken by people with hearing aids and insulin pumps. Also at risk are: mechanical watches, car keys, speakers, and screens. Avoid contact with magnetic cards, hard drives, or precise measuring instruments.

Table 8: Collisions (kinetic energy) - collision effects
MP 20x5x5 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	25.61 km/h (7.11 m/s)	0.28 J
30 mm	42.40 km/h (11.78 m/s)	0.77 J
50 mm	54.68 km/h (15.19 m/s)	1.27 J
100 mm	77.33 km/h (21.48 m/s)	2.55 J

Magnetic elements are prone to chipping – a violent impact against metal risks their cracking. Watch the impact speed – a magnet released freely turns into a projectile. Kinetic force can trigger coating fragments or dangerous crushing to fingers. Hold the magnet firmly during bringing near metal so it doesn't hit with great force against the metal. A collision at high speed almost guarantees destruction of the neodymium. Wear safety glasses when working with powerful specimens.

Table 9: Corrosion resistance
MP 20x5x5 / 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. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Electrical data (P_c)
MP 20x5x5 / 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. Key data for generator designers and motors. P_c value determines the magnet's operating point.

Table 11: Submerged application
MP 20x5x5 / N38

Environment	Effective steel pull	Effect
Air (land)	6.49 kg	Standard
Water (riverbed)	7.43 kg (+0.94 kg buoyancy gain)	+14.5%

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. Buoyancy helps in lifting finds.

1. Vertical hold

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

2. Steel thickness impact

*Thin steel (e.g. computer case) severely reduces the holding force.

3. Power loss vs temp

*For standard magnets, the safety 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.

Engineering data and GPSR

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: 030186-2026

Measurement Calculator

Pulling force

Kilograms (kg)

Force (N)

lbs

Field Strength

Gauss (Gs)

Induction (T)

Input a figure in a single field to see the conversion in the other fields at once.

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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 20x5x5 / N38. Neodymium magnets are sintered ceramics, which means they are hard but breakable and inelastic. One turn too many can destroy the magnet, so do it slowly. 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 does not ensure full waterproofing. Damage to the protective layer during assembly is the most common cause of rusting. If you must use it outside, paint it with anti-corrosion paint after mounting.

A screw or bolt with a thread diameter smaller than 5 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.

This model is characterized by dimensions Ø20x5 mm and a weight of 11.04 g. The key parameter here is the holding force amounting to approximately 6.49 kg (force ~63.68 N). The mounting hole diameter is precisely 5 mm.

The poles are located on the planes with holes, not on the sides of the ring. 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.

Strengths and weaknesses of rare earth magnets.

Advantages

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

They retain attractive force for almost ten years – the loss is just ~1% (in theory),
They do not lose their magnetic properties even under external field action,
The use of an metallic finish of noble metals (nickel, gold, silver) causes the element to be more visually attractive,
The surface of neodymium magnets generates a strong magnetic field – this is one of their assets,
Through (appropriate) combination of ingredients, they can achieve high thermal strength, enabling operation at temperatures approaching 230°C and above...
Possibility of detailed creating and optimizing to complex conditions,
Fundamental importance in advanced technology sectors – they are used in computer drives, electric motors, precision medical tools, and complex engineering applications.
Thanks to their power density, small magnets offer high operating force, occupying minimum space,

Disadvantages

Cons of neodymium magnets and ways of using them

Brittleness is one of their disadvantages. Upon strong impact they can break. We advise keeping them in a steel housing, which not only protects them against impacts but also raises their durability
When exposed to high temperature, neodymium magnets suffer a drop in force. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
Magnets exposed to a humid environment can corrode. Therefore while using outdoors, we advise using water-impermeable magnets made of rubber, plastic or other material resistant to moisture
Limited possibility of producing nuts in the magnet and complicated shapes - preferred is a housing - mounting mechanism.
Possible danger related to microscopic parts of magnets are risky, in case of ingestion, which gains importance in the aspect of protecting the youngest. It is also worth noting that small elements of these devices can be problematic in diagnostics medical after entering the body.
Due to complex production process, their price exceeds standard values,

Lifting parameters

Optimal lifting capacity of a neodymium magnet – what affects it?

The force parameter is a measurement result performed under standard conditions:

on a block made of structural steel, optimally conducting the magnetic field
with a thickness minimum 10 mm
characterized by lack of roughness
with zero gap (without coatings)
for force applied at a right angle (in the magnet axis)
at conditions approx. 20°C

Determinants of practical lifting force of a magnet

In real-world applications, the real power results from a number of factors, listed from crucial:

Distance (between the magnet and the metal), as even a very small clearance (e.g. 0.5 mm) can cause a reduction in lifting capacity by up to 50% (this also applies to paint, rust or debris).
Angle of force application – maximum parameter is reached only during pulling at a 90° angle. The shear force of the magnet along the surface is usually several times smaller (approx. 1/5 of the lifting capacity).
Substrate thickness – to utilize 100% power, the steel must be adequately massive. Thin sheet limits the attraction force (the magnet "punches through" it).
Chemical composition of the base – mild steel gives the best results. Higher carbon content lower magnetic properties and holding force.
Surface quality – the smoother and more polished the surface, the larger the contact zone and stronger the hold. Unevenness acts like micro-gaps.
Thermal factor – hot environment reduces magnetic field. Too high temperature can permanently demagnetize the magnet.

Holding force was checked on the plate surface of 20 mm thickness, when a perpendicular force was applied, however under attempts to slide the magnet the lifting capacity is smaller. Additionally, even a small distance between the magnet’s surface and the plate decreases the load capacity.

Safe handling of NdFeB magnets

Beware of splinters

Despite the nickel coating, the material is brittle and not impact-resistant. Do not hit, as the magnet may shatter into sharp, dangerous pieces.

Impact on smartphones

Navigation devices and mobile phones are highly sensitive to magnetic fields. Direct contact with a powerful NdFeB magnet can ruin the internal compass in your phone.

Skin irritation risks

Allergy Notice: The Ni-Cu-Ni coating contains nickel. If redness appears, immediately stop working with magnets and use protective gear.

Bodily injuries

Large magnets can break fingers instantly. Under no circumstances put your hand betwixt two attracting surfaces.

Life threat

Medical warning: Strong magnets can turn off pacemakers and defibrillators. Stay away if you have electronic implants.

Product not for children

Strictly keep magnets away from children. Choking hazard is significant, and the consequences of magnets connecting inside the body are fatal.

Magnetic media

Data protection: Neodymium magnets can damage payment cards and delicate electronics (heart implants, medical aids, mechanical watches).

Demagnetization risk

Keep cool. NdFeB magnets are sensitive to heat. If you require operation above 80°C, look for special high-temperature series (H, SH, UH).

Combustion hazard

Combustion risk: Neodymium dust is explosive. Do not process magnets without safety gear as this may cause fire.

Safe operation

Before use, read the rules. Uncontrolled attraction can destroy the magnet or hurt your hand. Be predictive.

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

MP 20x5x5 / N38 - ring magnet

Technical specification of the product - MP 20x5x5 / N38 - ring magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering simulation of the assembly - data

Table 1: Static force (pull vs distance) - interaction chart MP 20x5x5 / N38

Table 2: Shear hold (vertical surface) MP 20x5x5 / N38

Table 3: Wall mounting (sliding) - vertical pull MP 20x5x5 / N38

Table 4: Steel thickness (substrate influence) - power losses MP 20x5x5 / N38

Table 5: Thermal resistance (stability) - thermal limit MP 20x5x5 / N38

Table 6: Two magnets (attraction) - field collision MP 20x5x5 / N38

Table 7: Protective zones (implants) - precautionary measures MP 20x5x5 / N38

Table 8: Collisions (kinetic energy) - collision effects MP 20x5x5 / N38

Table 9: Corrosion resistance MP 20x5x5 / N38

Table 10: Electrical data (Pc) MP 20x5x5 / N38

Table 11: Submerged application MP 20x5x5 / N38

1. Vertical hold

2. Steel thickness impact

3. Power loss vs temp

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

Chemical composition

Environmental data

Pulling force

Field Strength

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Strengths and weaknesses of rare earth magnets.

Advantages

Disadvantages

Lifting parameters

Optimal lifting capacity of a neodymium magnet – what affects it?

Determinants of practical lifting force of a magnet

Safe handling of NdFeB magnets

Beware of splinters

Impact on smartphones

Skin irritation risks

Bodily injuries

Life threat

Product not for children

Magnetic media

Demagnetization risk

Combustion hazard

Safe operation

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (pull vs distance) - interaction chart
MP 20x5x5 / N38

Table 2: Shear hold (vertical surface)
MP 20x5x5 / N38

Table 3: Wall mounting (sliding) - vertical pull
MP 20x5x5 / N38

Table 4: Steel thickness (substrate influence) - power losses
MP 20x5x5 / N38

Table 5: Thermal resistance (stability) - thermal limit
MP 20x5x5 / N38

Table 6: Two magnets (attraction) - field collision
MP 20x5x5 / N38

Table 7: Protective zones (implants) - precautionary measures
MP 20x5x5 / N38

Table 8: Collisions (kinetic energy) - collision effects
MP 20x5x5 / N38

Table 9: Corrosion resistance
MP 20x5x5 / N38

Table 10: Electrical data (P_c)
MP 20x5x5 / N38

Table 11: Submerged application
MP 20x5x5 / N38