Product available Ships tomorrow

MP 20x5x27 / 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 030185

GTIN/EAN: 5906301812029

5.00

Diameter

20 mm [±0,1 mm]

internal diameter Ø

5 mm [±0,1 mm]

Height

27 mm [±0,1 mm]

Weight

59.64 g

Magnetization Direction

↑ axial

Load capacity

10.36 kg / 101.60 N

Magnetic Induction

581.04 mT / 5810 Gs

Coating

[NiCuNi] Nickel

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33.00 ZŁ with VAT / pcs + price for transport

26.83 ZŁ net + 23% VAT / pcs

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Lifting power as well as structure of a magnet can be tested with our modular calculator.

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Technical data of the product - MP 20x5x27 / N38 - ring magnet

Specification / characteristics - MP 20x5x27 / N38 - ring magnet

properties

properties	values
Cat. no.	030185
GTIN/EAN	5906301812029
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	27 mm [±0,1 mm]
Weight	59.64 g
Magnetization Direction	↑ axial
Load capacity ~ ?	10.36 kg / 101.60 N
Magnetic Induction ~ ?	581.04 mT / 5810 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MP 20x5x27 / 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 analysis of the magnet - data

Presented information constitute the direct effect of a physical calculation. Results rely on algorithms for the class Nd₂Fe₁₄B. Actual parameters might slightly differ from theoretical values. Treat these data as a preliminary roadmap for designers.

Table 1: Static pull force (force vs distance) - power drop
MP 20x5x27 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	5716 Gs 571.6 mT	10.36 kg / 22.84 lbs 10360.0 g / 101.6 N	dangerous!
1 mm	5288 Gs 528.8 mT	8.87 kg / 19.55 lbs 8865.5 g / 87.0 N	medium risk
2 mm	4861 Gs 486.1 mT	7.49 kg / 16.51 lbs 7491.0 g / 73.5 N	medium risk
3 mm	4446 Gs 444.6 mT	6.27 kg / 13.82 lbs 6267.5 g / 61.5 N	medium risk
5 mm	3677 Gs 367.7 mT	4.29 kg / 9.45 lbs 4285.9 g / 42.0 N	medium risk
10 mm	2216 Gs 221.6 mT	1.56 kg / 3.43 lbs 1557.1 g / 15.3 N	safe
15 mm	1354 Gs 135.4 mT	0.58 kg / 1.28 lbs 580.9 g / 5.7 N	safe
20 mm	864 Gs 86.4 mT	0.24 kg / 0.52 lbs 236.9 g / 2.3 N	safe
30 mm	405 Gs 40.5 mT	0.05 kg / 0.11 lbs 52.1 g / 0.5 N	safe
50 mm	133 Gs 13.3 mT	0.01 kg / 0.01 lbs 5.6 g / 0.1 N	safe

Pulling power drops significantly per each millimeter of spacing. Note that every additional insulation layer (e.g., contamination, paint, veneer) strongly reduces the pull force. Magnets operate most effectively in perfect adhesion; distance kills the force. Analyze how quickly the pull force fall, when the magnet does not touch directly to the metal substrate. When calculating the mounting, avoid unnecessary gaps.

Table 2: Vertical load (wall)
MP 20x5x27 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	2.07 kg / 4.57 lbs 2072.0 g / 20.3 N
1 mm	Stal (~0.2)	1.77 kg / 3.91 lbs 1774.0 g / 17.4 N
2 mm	Stal (~0.2)	1.50 kg / 3.30 lbs 1498.0 g / 14.7 N
3 mm	Stal (~0.2)	1.25 kg / 2.76 lbs 1254.0 g / 12.3 N
5 mm	Stal (~0.2)	0.86 kg / 1.89 lbs 858.0 g / 8.4 N
10 mm	Stal (~0.2)	0.31 kg / 0.69 lbs 312.0 g / 3.1 N
15 mm	Stal (~0.2)	0.12 kg / 0.26 lbs 116.0 g / 1.1 N
20 mm	Stal (~0.2)	0.05 kg / 0.11 lbs 48.0 g / 0.5 N
30 mm	Stal (~0.2)	0.01 kg / 0.02 lbs 10.0 g / 0.1 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 2.0 g / 0.0 N

The following data defines the theoretical force required to initiate the slippage of the magnet vertically on a vertical metal surface (assuming standard friction). This parameter depends on the air gap between the magnet and the metal.

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MP 20x5x27 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	3.11 kg / 6.85 lbs 3108.0 g / 30.5 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	2.07 kg / 4.57 lbs 2072.0 g / 20.3 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	1.04 kg / 2.28 lbs 1036.0 g / 10.2 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	5.18 kg / 11.42 lbs 5180.0 g / 50.8 N

When mounting a holder on a upright surface (e.g., a fridge), it you can count on only approx. 20%-30% of nominal attraction strength. Gravitational force and a low friction coefficient mean that products slip easier than they pull off. Planning a vertical fastening? Note that the sliding force is much weaker than the perpendicular breakaway force. On a smooth steel, the holder will slide down under a noticeably lighter cargo. Using a rubber pad can significantly increase the grip.

Table 4: Material efficiency (saturation) - power losses
MP 20x5x27 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	5%	0.52 kg / 1.14 lbs 518.0 g / 5.1 N
1 mm	13%	1.30 kg / 2.85 lbs 1295.0 g / 12.7 N
2 mm	25%	2.59 kg / 5.71 lbs 2590.0 g / 25.4 N
3 mm	38%	3.89 kg / 8.56 lbs 3885.0 g / 38.1 N
5 mm	63%	6.48 kg / 14.27 lbs 6475.0 g / 63.5 N
10 mm	100%	10.36 kg / 22.84 lbs 10360.0 g / 101.6 N
11 mm	100%	10.36 kg / 22.84 lbs 10360.0 g / 101.6 N
12 mm	100%	10.36 kg / 22.84 lbs 10360.0 g / 101.6 N

A too thin steel is not enough to absorb the entire magnetic field, which squanders power of the holder. If you install a neodymium to a thin surface, the flux will penetrate right through and the pull force will drop sharply. To achieve 100% of this neodymium's potential, you require a sufficiently solid backing of steel. The saturation effect causes that on thin elements (e.g., appliance housings), the holder holds weaker. We recommend selecting the steel cross-section based on the following data.

Table 5: Thermal resistance (stability) - thermal limit
MP 20x5x27 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	10.36 kg / 22.84 lbs 10360.0 g / 101.6 N	OK
40 °C	-2.2%	10.13 kg / 22.34 lbs 10132.1 g / 99.4 N	OK
60 °C	-4.4%	9.90 kg / 21.83 lbs 9904.2 g / 97.2 N	OK
80 °C	-6.6%	9.68 kg / 21.33 lbs 9676.2 g / 94.9 N
100 °C	-28.8%	7.38 kg / 16.26 lbs 7376.3 g / 72.4 N

Ordinary NdFeB products irreversibly lose strength after exceeding the maximum temperature. Watch out for overheating – heat can permanently destroy this product. With every degree above norm, the magnet's capacity temporarily decreases. Avoid using this magnet near heat sources higher than its operating temperature limit. Ignoring the limit will result in permanent loss of magnetic properties.

*Technical advisory: Thermal stability depends not only on the material grade, but also on the magnet's shape. Flat magnets (low Pc) risk losing magnetic properties under lower heat stress than taller cylinders. Red status in the table signals a risk of irreversible loss for this particular item.

Table 6: Magnet-Magnet interaction (attraction) - field range
MP 20x5x27 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	44.24 kg / 97.54 lbs 6 064 Gs	6.64 kg / 14.63 lbs 6636 g / 65.1 N	N/A
1 mm	41.02 kg / 90.43 lbs 11 008 Gs	6.15 kg / 13.56 lbs 6153 g / 60.4 N	36.92 kg / 81.39 lbs ~0 Gs
2 mm	37.86 kg / 83.47 lbs 10 576 Gs	5.68 kg / 12.52 lbs 5679 g / 55.7 N	34.07 kg / 75.12 lbs ~0 Gs
3 mm	34.85 kg / 76.83 lbs 10 146 Gs	5.23 kg / 11.52 lbs 5227 g / 51.3 N	31.36 kg / 69.14 lbs ~0 Gs
5 mm	29.30 kg / 64.58 lbs 9 303 Gs	4.39 kg / 9.69 lbs 4394 g / 43.1 N	26.37 kg / 58.13 lbs ~0 Gs
10 mm	18.30 kg / 40.35 lbs 7 353 Gs	2.75 kg / 6.05 lbs 2745 g / 26.9 N	16.47 kg / 36.32 lbs ~0 Gs
20 mm	6.65 kg / 14.66 lbs 4 432 Gs	1.00 kg / 2.20 lbs 997 g / 9.8 N	5.98 kg / 13.19 lbs ~0 Gs
50 mm	0.45 kg / 1.00 lbs 1 159 Gs	0.07 kg / 0.15 lbs 68 g / 0.7 N	0.41 kg / 0.90 lbs ~0 Gs
60 mm	0.22 kg / 0.49 lbs 811 Gs	0.03 kg / 0.07 lbs 33 g / 0.3 N	0.20 kg / 0.44 lbs ~0 Gs
70 mm	0.12 kg / 0.26 lbs 589 Gs	0.02 kg / 0.04 lbs 18 g / 0.2 N	0.11 kg / 0.23 lbs ~0 Gs
80 mm	0.07 kg / 0.14 lbs 440 Gs	0.01 kg / 0.02 lbs 10 g / 0.1 N	0.06 kg / 0.13 lbs ~0 Gs
90 mm	0.04 kg / 0.09 lbs 338 Gs	0.01 kg / 0.01 lbs 6 g / 0.1 N	0.03 kg / 0.08 lbs ~0 Gs
100 mm	0.02 kg / 0.05 lbs 265 Gs	0.00 kg / 0.01 lbs 4 g / 0.0 N	0.02 kg / 0.05 lbs ~0 Gs

Two strong neodymiums interact from a much further distance than a magnet and steel combination. Such a system of magnet-to-magnet produces a massive flux and a further horizon of operation. Planning to create a solid fastener? Apply two magnets instead of one magnet and a striker plate. Exercise caution that when bringing together two magnets, the collision energy is huge. The levitation is marginally weaker than the connection force, but still large.
*Field value for N-N configuration reaches ~0 Gs at the geometric center of the gap (caused by magnetic field nullification).
* Figures show sliding force of a pair of matching neodymium magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Hazards (implants) - precautionary measures
MP 20x5x27 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	18.0 cm
Hearing aid	10 Gs (1.0 mT)	14.0 cm
Timepiece	20 Gs (2.0 mT)	11.0 cm
Mobile device	40 Gs (4.0 mT)	8.5 cm
Car key	50 Gs (5.0 mT)	7.5 cm
Payment card	400 Gs (40.0 mT)	3.5 cm
HDD hard drive	600 Gs (60.0 mT)	2.5 cm

A strong magnetic field is a serious hazard to electronics as well as medical implants. These NdFeB products generate a field that disrupts operation of sensitive medical devices. Be aware: the invisible magnetic field passes through tissues and glass. Special caution must be exercised by people with cochlear implants and drug dispensers. Also at risk are: automatic timepieces, remotes, membranes, and screens. Do not place the magnet near cards, HDD media, or sensitive navigation tools.

Table 8: Impact energy (cracking risk) - collision effects
MP 20x5x27 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	14.49 km/h (4.02 m/s)	0.48 J
30 mm	23.09 km/h (6.42 m/s)	1.23 J
50 mm	29.73 km/h (8.26 m/s)	2.03 J
100 mm	42.03 km/h (11.68 m/s)	4.07 J

NdFeB products are prone to chipping – a violent impact against metal risks their cracking. Watch the impact speed – a neodymium left loose turns into a projectile. Impact energy can cause material chips or injury to skin. Be sure to control the product during mounting so it doesn't hit with great force against the steel surface. A collision at high speed almost guarantees destruction of the neodymium. Wear eye protection when working with large magnets.

Table 9: Surface protection spec
MP 20x5x27 / N38

Technical parameter	Value / Description
Coating type	[NiCuNi] Nickel
Layer structure	Nickel - Copper - Nickel
Layer thickness	10-20 µm
Salt spray test (SST) ?	24 h
Recommended environment	Indoors only (dry)

Neodymium magnets are highly susceptible to corrosion without proper protection. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Construction data (P_c)
MP 20x5x27 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	14 314 Mx	143.1 µWb
P_c Coefficient	1.16	High (Stable)

Flux value passing through the magnet pole. Key data for generator designers as well as sensors. The P_c coefficient determines the magnet's operating point.

Table 11: Underwater work (magnet fishing)
MP 20x5x27 / N38

Environment	Effective steel pull	Effect
Air (land)	10.36 kg	Standard
Water (riverbed)	11.86 kg (+1.50 kg buoyancy gain)	+14.5%

Warning: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!

The magnetic field penetrates through water without any losses. However, remember the water resistance when pulling the rope quickly.

1. Sliding resistance

*Warning: On a vertical surface, the magnet holds just ~20% of its max power.

2. Plate thickness effect

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

3. Temperature resistance

*For standard magnets, the critical limit is 80°C.

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 1.16

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 and environmental data

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: 030185-2026

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The ring-shaped magnet MP 20x5x27 / N38 is created for permanent mounting, where glue might fail or be insufficient. Mounting is clean and reversible, unlike gluing. It is also often used in advertising for fixing signs and in workshops for organizing tools.

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 5 mm fits this model. For magnets with a straight hole, a conical head can act like a wedge and burst the magnet. Always check that the screw head is not larger than the outer diameter of the magnet (20 mm), so it doesn't protrude beyond the outline.

The presented product is a ring magnet with dimensions Ø20 mm (outer diameter) and height 27 mm. The key parameter here is the holding force amounting to approximately 10.36 kg (force ~101.60 N). The product has a [NiCuNi] coating and is made of NdFeB material. Inner hole dimension: 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.

Pros as well as cons of neodymium magnets.

Strengths

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

They have unchanged lifting capacity, and over more than 10 years their performance decreases symbolically – ~1% (according to theory),
Magnets perfectly resist against loss of magnetization caused by external fields,
In other words, due to the metallic surface of silver, the element gains visual value,
They are known for high magnetic induction at the operating surface, making them more effective,
Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the form) even at high temperatures reaching 230°C or more...
Thanks to flexibility in forming and the ability to adapt to unusual requirements,
Huge importance in high-tech industry – they are commonly used in hard drives, electromotive mechanisms, advanced medical instruments, as well as industrial machines.
Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Cons

Cons of neodymium magnets and ways of using them

To avoid cracks upon strong impacts, we suggest using special steel housings. Such a solution secures the magnet and simultaneously improves its durability.
When exposed to high temperature, neodymium magnets experience a drop in power. Often, when the temperature exceeds 80°C, their power 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
Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material resistant to moisture, in case of application outdoors
We suggest a housing - magnetic mount, due to difficulties in creating threads inside the magnet and complex forms.
Potential hazard to health – tiny shards of magnets can be dangerous, in case of ingestion, which becomes key in the context of child health protection. It is also worth noting that tiny parts of these magnets can complicate diagnosis medical after entering the body.
High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which hinders application in large quantities

Holding force characteristics

Maximum lifting force for a neodymium magnet – what affects it?

The declared magnet strength represents the maximum value, measured under laboratory conditions, specifically:

on a plate made of structural steel, perfectly concentrating the magnetic flux
possessing a massiveness of at least 10 mm to avoid saturation
characterized by smoothness
under conditions of gap-free contact (metal-to-metal)
during detachment in a direction perpendicular to the mounting surface
in neutral thermal conditions

Determinants of practical lifting force of a magnet

In real-world applications, the actual lifting capacity is determined by several key aspects, ranked from crucial:

Clearance – the presence of any layer (paint, dirt, air) acts as an insulator, which reduces power steeply (even by 50% at 0.5 mm).
Pull-off angle – note that the magnet has greatest strength perpendicularly. Under shear forces, the capacity drops significantly, often to levels of 20-30% of the nominal value.
Wall thickness – the thinner the sheet, the weaker the hold. Magnetic flux penetrates through instead of generating force.
Material type – the best choice is high-permeability steel. Cast iron may have worse magnetic properties.
Smoothness – ideal contact is obtained only on polished steel. Rough texture reduce the real contact area, weakening the magnet.
Thermal environment – temperature increase causes a temporary drop of induction. It is worth remembering the maximum operating temperature for a given model.

Lifting capacity testing was carried out on a smooth plate of suitable thickness, under perpendicular forces, in contrast under shearing force the load capacity is reduced by as much as 75%. In addition, even a small distance between the magnet’s surface and the plate lowers the load capacity.

Precautions when working with neodymium magnets

Do not drill into magnets

Mechanical processing of neodymium magnets poses a fire hazard. Neodymium dust oxidizes rapidly with oxygen and is difficult to extinguish.

ICD Warning

Patients with a ICD must keep an large gap from magnets. The magnetic field can disrupt the functioning of the life-saving device.

Crushing force

Risk of injury: The attraction force is so immense that it can cause blood blisters, crushing, and even bone fractures. Use thick gloves.

Keep away from computers

Very strong magnetic fields can destroy records on credit cards, hard drives, and storage devices. Keep a distance of min. 10 cm.

Phone sensors

Remember: neodymium magnets generate a field that disrupts precision electronics. Keep a safe distance from your phone, tablet, and navigation systems.

Product not for children

Always store magnets out of reach of children. Ingestion danger is high, and the effects of magnets connecting inside the body are fatal.

Allergic reactions

Medical facts indicate that nickel (the usual finish) is a strong allergen. For allergy sufferers, avoid direct skin contact and opt for encased magnets.

Powerful field

Handle with care. Rare earth magnets act from a long distance and snap with massive power, often quicker than you can move away.

Heat sensitivity

Do not overheat. NdFeB magnets are susceptible to heat. If you require resistance above 80°C, look for special high-temperature series (H, SH, UH).

Protective goggles

Despite metallic appearance, neodymium is brittle and cannot withstand shocks. Avoid impacts, as the magnet may crumble into sharp, dangerous pieces.

Security! Looking for details? Check our post: Are neodymium magnets dangerous?

MP 20x5x27 / N38 - ring magnet

Technical data of the product - MP 20x5x27 / N38 - ring magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical analysis of the magnet - data

Table 1: Static pull force (force vs distance) - power drop MP 20x5x27 / N38

Table 2: Vertical load (wall) MP 20x5x27 / N38

Table 3: Wall mounting (shearing) - behavior on slippery surfaces MP 20x5x27 / N38

Table 4: Material efficiency (saturation) - power losses MP 20x5x27 / N38

Table 5: Thermal resistance (stability) - thermal limit MP 20x5x27 / N38

Table 6: Magnet-Magnet interaction (attraction) - field range MP 20x5x27 / N38

Table 7: Hazards (implants) - precautionary measures MP 20x5x27 / N38

Table 8: Impact energy (cracking risk) - collision effects MP 20x5x27 / N38

Table 9: Surface protection spec MP 20x5x27 / N38

Table 10: Construction data (Pc) MP 20x5x27 / N38

Table 11: Underwater work (magnet fishing) MP 20x5x27 / N38

1. Sliding resistance

2. Plate thickness effect

3. Temperature resistance

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

Chemical composition

Environmental data

Force (pull)

Magnetic Induction

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Pros as well as cons of neodymium magnets.

Strengths

Cons

Holding force characteristics

Maximum lifting force for a neodymium magnet – what affects it?

Determinants of practical lifting force of a magnet

Precautions when working with neodymium magnets

Do not drill into magnets

ICD Warning

Crushing force

Keep away from computers

Phone sensors

Product not for children

Allergic reactions

Powerful field

Heat sensitivity

Protective goggles

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs distance) - power drop
MP 20x5x27 / N38

Table 2: Vertical load (wall)
MP 20x5x27 / N38

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MP 20x5x27 / N38

Table 4: Material efficiency (saturation) - power losses
MP 20x5x27 / N38

Table 5: Thermal resistance (stability) - thermal limit
MP 20x5x27 / N38

Table 6: Magnet-Magnet interaction (attraction) - field range
MP 20x5x27 / N38

Table 7: Hazards (implants) - precautionary measures
MP 20x5x27 / N38

Table 8: Impact energy (cracking risk) - collision effects
MP 20x5x27 / N38

Table 9: Surface protection spec
MP 20x5x27 / N38

Table 10: Construction data (P_c)
MP 20x5x27 / N38

Table 11: Underwater work (magnet fishing)
MP 20x5x27 / N38