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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

technical details »

2.76 ZŁ with VAT / pcs + price for transport

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Technical - 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

Physical simulation of the product - report

The following information represent the direct effect of a physical analysis. Results rely on algorithms for the class Nd₂Fe₁₄B. Real-world conditions may differ from theoretical values. Treat these calculations as a preliminary roadmap during assembly planning.

Table 1: Static force (pull vs distance) - characteristics
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	medium risk
1 mm	5321 Gs 532.1 mT	5.25 kg / 11.57 LBS 5249.3 g / 51.5 N	medium risk
2 mm	4736 Gs 473.6 mT	4.16 kg / 9.17 LBS 4158.8 g / 40.8 N	medium risk
3 mm	4184 Gs 418.4 mT	3.25 kg / 7.15 LBS 3245.0 g / 31.8 N	medium risk
5 mm	3216 Gs 321.6 mT	1.92 kg / 4.23 LBS 1917.2 g / 18.8 N	weak grip
10 mm	1650 Gs 165.0 mT	0.50 kg / 1.11 LBS 504.5 g / 4.9 N	weak grip
15 mm	907 Gs 90.7 mT	0.15 kg / 0.34 LBS 152.6 g / 1.5 N	weak grip
20 mm	544 Gs 54.4 mT	0.05 kg / 0.12 LBS 54.9 g / 0.5 N	weak grip
30 mm	240 Gs 24.0 mT	0.01 kg / 0.02 LBS 10.7 g / 0.1 N	weak grip
50 mm	75 Gs 7.5 mT	0.00 kg / 0.00 LBS 1.0 g / 0.0 N	weak grip

Grip strength decreases drastically with every subsequent millimeter of distance. Keep in mind that even a very thin break (e.g., contamination, varnish, dust) noticeably reduces the pull force. Neodymiums operate optimally during direct contact; distance kills the force. Notice how rapidly the load capacity fall, when the magnet does not touch directly to the steel surface. When planning the mounting, discard unnecessary gaps.

Table 2: Slippage load (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 presents the approximate weight limit necessary to cause the downward movement of the magnet down against a vertical metal surface (assuming standard friction). This value depends on the distance between the magnet and the metal.

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
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 placing a magnet on a upright plane (e.g., a car body), it will maintain barely approx. 20%-30% of nominal attraction strength. Gravitational force as well as a weak degree of grip mean that holders slip easier than they detach. Want to create a hanger? Note that the sliding force is noticeably lower than the maximum static pull force. On a smooth steel, the element will slip down under a noticeably lighter cargo. Using a rubber layer can significantly increase the grip.

Table 4: Steel thickness (substrate influence) - sheet metal selection
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 focus the full magnetic flux, which squanders power of the magnet. If you mount a strong magnet to a thin surface, the field will penetrate right through and the pull force will drop sharply. To achieve full efficiency of this neodymium's power, you require a sufficiently solid element of metal. The saturation phenomenon causes that on delicate walls (e.g., car bodies), the magnet works worse. We advise picking the steel cross-section according to the table below.

Table 5: Working in heat (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 change their properties power above the temperature limit. Avoid high temperatures – heat can irreversibly destroy this magnet. As the temperature rises, the neodymium's capacity temporarily drops. Avoid using this magnet close to ovens exceeding its operating temperature limit. Exceeding the critical threshold will lead to irreversible degradation of magnetism.

*Important note: Heat tolerance depends not only on the material grade, but also on the magnet's shape. Flat magnets (pancake types) risk losing magnetic properties under lower heat stress compared to rod magnets. Warning indicator in the table points to a risk of irreversible loss for this particular item.

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

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral 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 magnetic products 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 action. Planning to create a powerful holder? Use a pair of magnets instead of one magnet and a striker plate. Remember that when attracting two neodymiums, the collision energy is huge. The levitation is slightly lower than the connection force, but still significant.
*The magnetic induction for N-N configuration reaches ~0 Gs at the midpoint of the gap (resulting from vector opposition).
Important: Estimates refer to sliding force of two identical neodymium magnets (friction ~0.15 for Ni-Ni layer).

Table 7: Safety (HSE) (implants) - warnings
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
Car key	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 poses a large risk to electronics as well as pacemakers. These NdFeB products produce a flux that destroys function of sensitive medical devices. Be aware: the unseen radiation passes through tissues and glass. Exceptional care must be taken by people with cochlear implants and insulin pumps. Influence will be felt by: mechanical watches, remotes, membranes, and displays. Do not place the magnet near cards, HDD media, or sensitive navigation tools.

Table 8: Dynamics (cracking risk) - warning
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 causes immediate chipping. Control the attraction moment – a magnet released freely turns into a projectile. Impact energy can cause material chips or painful pinches to fingers. Always hold the magnet during installation so it doesn't slam with momentum against the metal. A collision at high speed ends with a crack of the neodymium. Wear eye protection when working with large magnets.

Table 9: Anti-corrosion coating durability
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)

For outdoor applications, an epoxy coating is required; standard nickel is intended for indoor use. Moisture resistance is crucial for installations in bathrooms or outdoors.

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)

Flux value passing through the magnet pole. Key data for generator designers and motors. P_c value defines the magnet's operating point.

Table 11: Underwater work (magnet fishing)
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: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.

The magnetic field penetrates through water without any losses. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Wall mount (shear)

*Warning: On a vertical surface, the magnet holds only approx. 20-30% of its max power.

2. Steel thickness impact

*Thin metal sheet (e.g. 0.5mm PC case) severely reduces 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) = 1.13

This simulation demonstrates the magnetic stability of the selected magnet under specific geometric conditions. The solid red line represents the demagnetization curve (material potential), while the dashed blue line is the load line based on the magnet's geometry. The P_c (Permeance Coefficient), also known as the load line slope, is a dimensionless value that describes the relationship between the magnet's shape and its magnetic stability. The intersection of these two lines (the black dot) is the operating point — it determines the actual magnetic flux density generated by the magnet in this specific configuration. A higher P_c value means the magnet is more 'slender' (tall relative to its area), resulting in a higher operating point and better resistance to irreversible demagnetization caused by external fields or temperature. A value of 0.42 is relatively low (typical for flat magnets), meaning the operating point is closer to the 'knee' of the curve — caution is advised when operating at temperatures near the maximum limit to avoid strength loss.

Technical 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: 030186-2026

Measurement Calculator

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The ring-shaped magnet MP 20x5x5 / N38 is created for mechanical fastening, where glue might fail or be insufficient. Thanks to the hole (often for a screw), this model enables quick installation to wood, wall, plastic, or metal. This product with a force of 6.49 kg works great as a door latch, speaker holder, or spacer element in devices.

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. When tightening the screw, you must maintain caution. We recommend tightening manually with a screwdriver, not an impact driver, because excessive force will cause the ring to crack. 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. 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.

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. Aesthetic mounting requires selecting the appropriate head size.

The presented product is a ring magnet with dimensions Ø20 mm (outer diameter) and height 5 mm. The pulling force of this model is an impressive 6.49 kg, which translates to 63.68 N in newtons. The mounting hole diameter is precisely 5 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.

Advantages and disadvantages of rare earth magnets.

Strengths

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

Their power is maintained, and after approximately ten years it decreases only by ~1% (according to research),
Magnets perfectly protect themselves against demagnetization caused by foreign field sources,
A magnet with a shiny silver surface is more attractive,
Magnets have very high magnetic induction on the outer side,
Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the shape) even at high temperatures reaching 230°C or more...
In view of the potential of precise shaping and adaptation to specialized solutions, neodymium magnets can be produced in a variety of geometric configurations, which makes them more universal,
Key role in high-tech industry – they find application in mass storage devices, electromotive mechanisms, diagnostic systems, also modern systems.
Relatively small size with high pulling force – neodymium magnets offer high power in tiny dimensions, which enables their usage in compact constructions

Weaknesses

Disadvantages of NdFeB magnets:

At very strong impacts they can break, therefore we advise placing them in strong housings. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
We warn that neodymium magnets can lose their power at high temperatures. To prevent this, we recommend our specialized [AH] magnets, which work effectively even at 230°C.
Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material resistant to moisture, in case of application outdoors
Limited ability of creating threads in the magnet and complex forms - recommended is casing - magnetic holder.
Potential hazard related to microscopic parts of magnets can be dangerous, if swallowed, which is particularly important in the aspect of protecting the youngest. It is also worth noting that small elements of these products are able to disrupt the diagnostic process medical when they are in the body.
Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Holding force characteristics

Maximum lifting capacity of the magnet – what affects it?

The load parameter shown represents the maximum value, recorded under laboratory conditions, meaning:

using a plate made of mild steel, serving as a circuit closing element
with a thickness minimum 10 mm
characterized by even structure
under conditions of ideal adhesion (surface-to-surface)
for force acting at a right angle (pull-off, not shear)
at room temperature

Determinants of practical lifting force of a magnet

During everyday use, the real power is determined by a number of factors, listed from most significant:

Air gap (between the magnet and the plate), since even a tiny distance (e.g. 0.5 mm) can cause a drastic drop in force by up to 50% (this also applies to paint, corrosion or debris).
Direction of force – highest force is obtained only during pulling at a 90° angle. The force required to slide of the magnet along the plate is typically many times lower (approx. 1/5 of the lifting capacity).
Plate thickness – insufficiently thick plate does not accept the full field, causing part of the power to be lost to the other side.
Metal type – different alloys attracts identically. High carbon content weaken the attraction effect.
Surface structure – the more even the surface, the larger the contact zone and stronger the hold. Roughness creates an air distance.
Temperature influence – high temperature reduces pulling force. Exceeding the limit temperature can permanently demagnetize the magnet.

Lifting capacity was determined using a polished steel plate of suitable thickness (min. 20 mm), under perpendicular pulling force, whereas under attempts to slide the magnet the load capacity is reduced by as much as 5 times. Moreover, even a minimal clearance between the magnet’s surface and the plate reduces the load capacity.

Precautions when working with NdFeB magnets

Permanent damage

Control the heat. Exposing the magnet above 80 degrees Celsius will permanently weaken its properties and pulling force.

Fire warning

Mechanical processing of NdFeB material poses a fire risk. Magnetic powder reacts violently with oxygen and is hard to extinguish.

Electronic devices

Equipment safety: Neodymium magnets can damage payment cards and delicate electronics (heart implants, hearing aids, timepieces).

Nickel allergy

Allergy Notice: The Ni-Cu-Ni coating consists of nickel. If skin irritation happens, cease handling magnets and use protective gear.

Shattering risk

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

Product not for children

NdFeB magnets are not toys. Accidental ingestion of multiple magnets may result in them attracting across intestines, which constitutes a critical condition and requires urgent medical intervention.

GPS Danger

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

Hand protection

Large magnets can break fingers instantly. Under no circumstances place your hand between two attracting surfaces.

Safe operation

Use magnets with awareness. Their immense force can shock even experienced users. Be vigilant and respect their power.

Life threat

Warning for patients: Powerful magnets affect medical devices. Maintain at least 30 cm distance or ask another person to work with the magnets.

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

MP 20x5x5 / N38 - ring magnet

Technical - MP 20x5x5 / N38 - ring magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical simulation of the product - report

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

Table 2: Slippage load (vertical surface) MP 20x5x5 / N38

Table 3: Wall mounting (shearing) - behavior on slippery surfaces MP 20x5x5 / N38

Table 4: Steel thickness (substrate influence) - sheet metal selection MP 20x5x5 / N38

Table 5: Working in heat (stability) - thermal limit MP 20x5x5 / N38

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

Table 7: Safety (HSE) (implants) - warnings MP 20x5x5 / N38

Table 8: Dynamics (cracking risk) - warning MP 20x5x5 / N38

Table 9: Anti-corrosion coating durability MP 20x5x5 / N38

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

Table 11: Underwater work (magnet fishing) MP 20x5x5 / N38

1. Wall mount (shear)

2. Steel thickness impact

3. Temperature resistance

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

Chemical composition

Sustainability

Pulling force

Magnetic Induction

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Advantages and disadvantages of rare earth magnets.

Strengths

Weaknesses

Holding force characteristics

Maximum lifting capacity of the magnet – what affects it?

Determinants of practical lifting force of a magnet

Precautions when working with NdFeB magnets

Permanent damage

Fire warning

Electronic devices

Nickel allergy

Shattering risk

Product not for children

GPS Danger

Hand protection

Safe operation

Life threat

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

Table 2: Slippage load (vertical surface)
MP 20x5x5 / N38

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MP 20x5x5 / N38

Table 4: Steel thickness (substrate influence) - sheet metal selection
MP 20x5x5 / N38

Table 5: Working in heat (stability) - thermal limit
MP 20x5x5 / N38

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

Table 7: Safety (HSE) (implants) - warnings
MP 20x5x5 / N38

Table 8: Dynamics (cracking risk) - warning
MP 20x5x5 / N38

Table 9: Anti-corrosion coating durability
MP 20x5x5 / N38

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

Table 11: Underwater work (magnet fishing)
MP 20x5x5 / N38