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MP 5x2.7/1.2x5 S / 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 030202

GTIN/EAN: 5906301812197

5.00

Diameter

5 mm [±0,1 mm]

internal diameter Ø

2.7/1.2 mm [±0,1 mm]

Height

5 mm [±0,1 mm]

Weight

0.69 g

Magnetization Direction

↑ axial

Load capacity

0.75 kg / 7.31 N

Magnetic Induction

553.14 mT / 5531 Gs

Coating

[NiCuNi] Nickel

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0.836 ZŁ with VAT / pcs + price for transport

0.680 ZŁ net + 23% VAT / pcs

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Product card - MP 5x2.7/1.2x5 S / N38 - ring magnet

Specification / characteristics - MP 5x2.7/1.2x5 S / N38 - ring magnet

properties

properties	values
Cat. no.	030202
GTIN/EAN	5906301812197
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	5 mm [±0,1 mm]
internal diameter Ø	2.7/1.2 mm [±0,1 mm]
Height	5 mm [±0,1 mm]
Weight	0.69 g
Magnetization Direction	↑ axial
Load capacity ~ ?	0.75 kg / 7.31 N
Magnetic Induction ~ ?	553.14 mT / 5531 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MP 5x2.7/1.2x5 S / 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 values constitute the result of a mathematical analysis. Results were calculated on models for the class Nd₂Fe₁₄B. Actual performance might slightly differ. Use these calculations as a reference point during assembly planning.

Table 1: Static pull force (force vs gap) - power drop
MP 5x2.7/1.2x5 S / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	5322 Gs 532.2 mT	0.75 kg / 1.65 lbs 750.0 g / 7.4 N	safe
1 mm	3295 Gs 329.5 mT	0.29 kg / 0.63 lbs 287.5 g / 2.8 N	safe
2 mm	1883 Gs 188.3 mT	0.09 kg / 0.21 lbs 93.9 g / 0.9 N	safe
3 mm	1098 Gs 109.8 mT	0.03 kg / 0.07 lbs 31.9 g / 0.3 N	safe
5 mm	440 Gs 44.0 mT	0.01 kg / 0.01 lbs 5.1 g / 0.1 N	safe
10 mm	92 Gs 9.2 mT	0.00 kg / 0.00 lbs 0.2 g / 0.0 N	safe
15 mm	33 Gs 3.3 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	safe
20 mm	15 Gs 1.5 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	safe
30 mm	5 Gs 0.5 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	safe
50 mm	1 Gs 0.1 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	safe

Magnetic force decreases sharply with every subsequent millimeter of gap. Remember that even a very thin break (e.g., contamination, paint, dust) significantly diminishes the holding power. Neodymiums work strongest in perfect adhesion; air break nullifies the force. Observe how rapidly the parameters drop, when the magnet does not touch tightly to the metal substrate. When designing the arrangement, discard unnecessary gaps.

Table 2: Sliding hold (vertical surface)
MP 5x2.7/1.2x5 S / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.15 kg / 0.33 lbs 150.0 g / 1.5 N
1 mm	Stal (~0.2)	0.06 kg / 0.13 lbs 58.0 g / 0.6 N
2 mm	Stal (~0.2)	0.02 kg / 0.04 lbs 18.0 g / 0.2 N
3 mm	Stal (~0.2)	0.01 kg / 0.01 lbs 6.0 g / 0.1 N
5 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 2.0 g / 0.0 N
10 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N
15 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N
20 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N
30 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N

The following data indicates the estimated weight limit necessary to cause the downward movement of the magnet down on a vertical metal surface (assuming standard friction). This parameter is a function of the air gap between the magnet and the surface.

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MP 5x2.7/1.2x5 S / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.22 kg / 0.50 lbs 225.0 g / 2.2 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.15 kg / 0.33 lbs 150.0 g / 1.5 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.08 kg / 0.17 lbs 75.0 g / 0.7 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.38 kg / 0.83 lbs 375.0 g / 3.7 N

When mounting a magnet on a vertical wall (e.g., a car body), it will only hold barely approx. 20%-30% of its nominal power. Gravity as well as a weak degree of grip cause that products slide down easier than they pull off. Planning a wall mount? Remember that the sliding force is much weaker than the perpendicular breakaway force. On a painted metal, the magnet will slide down under a much lighter cargo. Application of an anti-slip layer can significantly raise the stability.

Table 4: Steel thickness (saturation) - sheet metal selection
MP 5x2.7/1.2x5 S / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.08 kg / 0.17 lbs 75.0 g / 0.7 N
1 mm	25%	0.19 kg / 0.41 lbs 187.5 g / 1.8 N
2 mm	50%	0.38 kg / 0.83 lbs 375.0 g / 3.7 N
3 mm	75%	0.56 kg / 1.24 lbs 562.5 g / 5.5 N
5 mm	100%	0.75 kg / 1.65 lbs 750.0 g / 7.4 N
10 mm	100%	0.75 kg / 1.65 lbs 750.0 g / 7.4 N
11 mm	100%	0.75 kg / 1.65 lbs 750.0 g / 7.4 N
12 mm	100%	0.75 kg / 1.65 lbs 750.0 g / 7.4 N

A too thin steel is not enough to absorb the entire magnetic field, which weakens actual performance of the holder. Should you attach a powerful product to a thin surface, the flux will pass right through and the attraction force will be weaker. To squeeze full efficiency of this magnet's potential, you require a sufficiently solid element of steel. The saturation effect causes that on sheet metal structures (e.g., thin profiles), the product holds weaker. We advise picking the steel cross-section based on the following data.

Table 5: Thermal resistance (material behavior) - resistance threshold
MP 5x2.7/1.2x5 S / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	0.75 kg / 1.65 lbs 750.0 g / 7.4 N	OK
40 °C	-2.2%	0.73 kg / 1.62 lbs 733.5 g / 7.2 N	OK
60 °C	-4.4%	0.72 kg / 1.58 lbs 717.0 g / 7.0 N	OK
80 °C	-6.6%	0.70 kg / 1.54 lbs 700.5 g / 6.9 N
100 °C	-28.8%	0.53 kg / 1.18 lbs 534.0 g / 5.2 N

Ordinary NdFeB products change their properties strength after exceeding the maximum temperature. Protect against heat – high temperature can permanently destroy this magnet. With every degree above norm, the magnet's capacity briefly drops. Refrain from using this magnet close to heaters higher than its operating temperature limit. Exceeding the critical threshold will lead to destruction of magnetism.

*Technical advisory: Temperature resistance depends not only on the material grade, and the Permeance Coefficient Pc. Low-profile magnets (low permeance coefficient) may lose charge permanently under lower heat stress compared to rod magnets. The danger warning in the table points to a risk of irreversible loss for this specific geometry.

Table 6: Two magnets (repulsion) - forces in the system
MP 5x2.7/1.2x5 S / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	2.75 kg / 6.06 lbs 5 924 Gs	0.41 kg / 0.91 lbs 412 g / 4.0 N	N/A
1 mm	1.77 kg / 3.90 lbs 8 541 Gs	0.27 kg / 0.58 lbs 265 g / 2.6 N	1.59 kg / 3.51 lbs ~0 Gs
2 mm	1.05 kg / 2.32 lbs 6 590 Gs	0.16 kg / 0.35 lbs 158 g / 1.5 N	0.95 kg / 2.09 lbs ~0 Gs
3 mm	0.60 kg / 1.33 lbs 4 992 Gs	0.09 kg / 0.20 lbs 91 g / 0.9 N	0.54 kg / 1.20 lbs ~0 Gs
5 mm	0.20 kg / 0.44 lbs 2 860 Gs	0.03 kg / 0.07 lbs 30 g / 0.3 N	0.18 kg / 0.39 lbs ~0 Gs
10 mm	0.02 kg / 0.04 lbs 880 Gs	0.00 kg / 0.01 lbs 3 g / 0.0 N	0.02 kg / 0.04 lbs ~0 Gs
20 mm	0.00 kg / 0.00 lbs 184 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
50 mm	0.00 kg / 0.00 lbs 16 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
60 mm	0.00 kg / 0.00 lbs 10 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
70 mm	0.00 kg / 0.00 lbs 6 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
80 mm	0.00 kg / 0.00 lbs 4 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
90 mm	0.00 kg / 0.00 lbs 3 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
100 mm	0.00 kg / 0.00 lbs 2 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs

Two magnetic products interact from a wider radius than a magnet and steel combination. The connection of two magnets generates a stronger field and a wider radius of operation. Designing a strong closure? Utilize two neodymiums instead of one magnet and a striker plate. Remember that when connecting a pair of magnets, the pinch force is massive. The levitation is a bit weaker than the attraction, but still impressive.
*Field value for N-N configuration is approximately ~0 Gs at the midpoint of the gap (due to field cancellation).
Important: Figures show sliding force of dual same magnets (friction ~0.15 for Ni-Ni coating).

Table 7: Hazards (electronics) - precautionary measures
MP 5x2.7/1.2x5 S / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	3.0 cm
Hearing aid	10 Gs (1.0 mT)	2.5 cm
Timepiece	20 Gs (2.0 mT)	2.0 cm
Phone / Smartphone	40 Gs (4.0 mT)	1.5 cm
Car key	50 Gs (5.0 mT)	1.5 cm
Payment card	400 Gs (40.0 mT)	1.0 cm
HDD hard drive	600 Gs (60.0 mT)	0.5 cm

Extremely neodym field poses a large risk to electronic devices and medical implants. These neodymiums generate a flux that prevents correct functioning of sensitive medical devices. Notice: the invisible magnetic field acts through matter and glass. Special caution must be exercised by people with hearing aids and drug dispensers. Influence will be felt by: automatic timepieces, car keys, membranes, and displays. Avoid contact with magnetic cards, HDD media, or sensitive navigation tools.

Table 8: Collisions (kinetic energy) - collision effects
MP 5x2.7/1.2x5 S / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	33.26 km/h (9.24 m/s)	0.03 J
30 mm	57.59 km/h (16.00 m/s)	0.09 J
50 mm	74.35 km/h (20.65 m/s)	0.15 J
100 mm	105.14 km/h (29.21 m/s)	0.29 J

Neodymium magnets are very brittle – a violent impact against metal can result in shattering. Control the attraction moment – a neodymium left loose speeds with massive force. Kinetic force can destroy the magnet or painful pinches to fingers. Always hold the magnet during bringing near metal so it doesn't slam with momentum against the steel surface. A contact at a velocity of dozens of km/h means shattering of the magnet. Wear eye protection when handling with large magnets.

Table 9: Anti-corrosion coating durability
MP 5x2.7/1.2x5 S / 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. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Construction data (Flux)
MP 5x2.7/1.2x5 S / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	862 Mx	8.6 µWb
P_c Coefficient	0.83	High (Stable)

Total magnetic flux passing through the magnet pole. Key data in coil applications and motors. P_c value determines the magnet's operating point.

Table 11: Physics of underwater searching
MP 5x2.7/1.2x5 S / N38

Environment	Effective steel pull	Effect
Air (land)	0.75 kg	Standard
Water (riverbed)	0.86 kg (+0.11 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!

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

1. Shear force

*Warning: On a vertical wall, the magnet retains just approx. 20-30% of its nominal pull.

2. Steel thickness impact

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

3. Thermal stability

*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) = 0.83

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%

Ecology and recycling (GPSR)

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: 030202-2026

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The ring magnet with a hole MP 5x2.7/1.2x5 S / N38 is created for permanent mounting, where glue might fail or be insufficient. Mounting is clean and reversible, unlike gluing. This product with a force of 0.75 kg works great as a cabinet closure, speaker holder, or mounting 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. Damage to the protective layer during assembly is the most common cause of rusting. This product is dedicated for inside building use. For outdoor applications, we recommend choosing magnets in hermetic housing or additional protection with varnish.

A screw or bolt with a thread diameter smaller than 2.7/1.2 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 (5 mm), so it doesn't protrude beyond the outline.

This model is characterized by dimensions Ø5x5 mm and a weight of 0.69 g. The pulling force of this model is an impressive 0.75 kg, which translates to 7.31 N in newtons. The product has a [NiCuNi] coating and is made of NdFeB material. Inner hole dimension: 2.7/1.2 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). When ordering a larger quantity, magnets are usually packed in stacks, where they are already naturally paired.

Pros as well as cons of Nd₂Fe₁₄B magnets.

Strengths

Besides their exceptional strength, neodymium magnets offer the following advantages:

They virtually do not lose power, because even after 10 years the performance loss is only ~1% (in laboratory conditions),
Magnets effectively resist against demagnetization caused by external fields,
Thanks to the smooth finish, the coating of Ni-Cu-Ni, gold-plated, or silver gives an elegant appearance,
Magnets have exceptionally strong magnetic induction on the active area,
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...
Due to the ability of free shaping and adaptation to individualized requirements, NdFeB magnets can be modeled in a wide range of geometric configurations, which makes them more universal,
Universal use in electronics industry – they are utilized in mass storage devices, brushless drives, precision medical tools, and other advanced devices.
Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in tiny dimensions, which allows their use in miniature devices

Limitations

Disadvantages of neodymium magnets:

To avoid cracks upon strong impacts, we suggest using special steel housings. Such a solution secures the magnet and simultaneously increases its durability.
When exposed to high temperature, neodymium magnets suffer a drop in strength. 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
When exposed to humidity, magnets usually rust. For applications outside, it is recommended to use protective magnets, such as those in rubber or plastics, which secure oxidation as well as corrosion.
We recommend a housing - magnetic holder, due to difficulties in producing nuts inside the magnet and complicated forms.
Potential hazard resulting from small fragments of magnets pose a threat, when accidentally swallowed, which is particularly important in the context of child health protection. It is also worth noting that small elements of these products are able to be problematic in diagnostics medical in case of swallowing.
Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Holding force characteristics

Best holding force of the magnet in ideal parameters – what affects it?

The load parameter shown represents the peak performance, measured under laboratory conditions, specifically:

with the contact of a sheet made of special test steel, guaranteeing maximum field concentration
whose thickness is min. 10 mm
characterized by smoothness
without the slightest insulating layer between the magnet and steel
under axial force vector (90-degree angle)
in temp. approx. 20°C

Key elements affecting lifting force

Bear in mind that the application force will differ depending on the following factors, in order of importance:

Space between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by veneer or unevenness) diminishes the magnet efficiency, often by half at just 0.5 mm.
Loading method – declared lifting capacity refers to detachment vertically. When applying parallel force, the magnet holds much less (often approx. 20-30% of maximum force).
Wall thickness – the thinner the sheet, the weaker the hold. Magnetic flux passes through the material instead of converting into lifting capacity.
Plate material – low-carbon steel attracts best. Alloy steels reduce magnetic permeability and holding force.
Surface condition – smooth surfaces ensure maximum contact, which improves force. Rough surfaces weaken the grip.
Temperature influence – high temperature reduces magnetic field. Too high temperature can permanently demagnetize the magnet.

Holding force was checked on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, however under attempts to slide the magnet the holding force is lower. Additionally, even a minimal clearance between the magnet’s surface and the plate lowers the lifting capacity.

Precautions when working with NdFeB magnets

Do not overheat magnets

Control the heat. Heating the magnet to high heat will destroy its magnetic structure and pulling force.

Protective goggles

Despite the nickel coating, the material is brittle and cannot withstand shocks. Avoid impacts, as the magnet may shatter into hazardous fragments.

Respect the power

Use magnets with awareness. Their huge power can surprise even experienced users. Plan your moves and do not underestimate their force.

Protect data

Do not bring magnets near a wallet, laptop, or screen. The magnetism can irreversibly ruin these devices and erase data from cards.

ICD Warning

For implant holders: Strong magnetic fields disrupt electronics. Maintain at least 30 cm distance or request help to work with the magnets.

Physical harm

Watch your fingers. Two large magnets will join instantly with a force of massive weight, destroying everything in their path. Exercise extreme caution!

Sensitization to coating

Allergy Notice: The Ni-Cu-Ni coating contains nickel. If redness happens, cease handling magnets and wear gloves.

Fire warning

Fire hazard: Neodymium dust is highly flammable. Avoid machining magnets without safety gear as this risks ignition.

GPS Danger

Navigation devices and mobile phones are extremely sensitive to magnetism. Close proximity with a powerful NdFeB magnet can ruin the internal compass in your phone.

Keep away from children

Strictly store magnets away from children. Risk of swallowing is significant, and the effects of magnets connecting inside the body are very dangerous.

Caution! Details about hazards in the article: Safety of working with magnets.

MP 5x2.7/1.2x5 S / N38 - ring magnet

Product card - MP 5x2.7/1.2x5 S / 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 gap) - power drop MP 5x2.7/1.2x5 S / N38

Table 2: Sliding hold (vertical surface) MP 5x2.7/1.2x5 S / N38

Table 3: Wall mounting (shearing) - behavior on slippery surfaces MP 5x2.7/1.2x5 S / N38

Table 4: Steel thickness (saturation) - sheet metal selection MP 5x2.7/1.2x5 S / N38

Table 5: Thermal resistance (material behavior) - resistance threshold MP 5x2.7/1.2x5 S / N38

Table 6: Two magnets (repulsion) - forces in the system MP 5x2.7/1.2x5 S / N38

Table 7: Hazards (electronics) - precautionary measures MP 5x2.7/1.2x5 S / N38

Table 8: Collisions (kinetic energy) - collision effects MP 5x2.7/1.2x5 S / N38

Table 9: Anti-corrosion coating durability MP 5x2.7/1.2x5 S / N38

Table 10: Construction data (Flux) MP 5x2.7/1.2x5 S / N38

Table 11: Physics of underwater searching MP 5x2.7/1.2x5 S / N38

1. Shear force

2. Steel thickness impact

3. Thermal stability

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

Chemical composition

Ecology and recycling (GPSR)

Pulling force

Field Strength

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Pros as well as cons of Nd2Fe14B magnets.

Strengths

Limitations

Holding force characteristics

Best holding force of the magnet in ideal parameters – what affects it?

Key elements affecting lifting force

Precautions when working with NdFeB magnets

Do not overheat magnets

Protective goggles

Respect the power

Protect data

ICD Warning

Physical harm

Sensitization to coating

Fire warning

GPS Danger

Keep away from children

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs gap) - power drop
MP 5x2.7/1.2x5 S / N38

Table 2: Sliding hold (vertical surface)
MP 5x2.7/1.2x5 S / N38

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MP 5x2.7/1.2x5 S / N38

Table 4: Steel thickness (saturation) - sheet metal selection
MP 5x2.7/1.2x5 S / N38

Table 5: Thermal resistance (material behavior) - resistance threshold
MP 5x2.7/1.2x5 S / N38

Table 6: Two magnets (repulsion) - forces in the system
MP 5x2.7/1.2x5 S / N38

Table 7: Hazards (electronics) - precautionary measures
MP 5x2.7/1.2x5 S / N38

Table 8: Collisions (kinetic energy) - collision effects
MP 5x2.7/1.2x5 S / N38

Table 9: Anti-corrosion coating durability
MP 5x2.7/1.2x5 S / N38

Table 10: Construction data (Flux)
MP 5x2.7/1.2x5 S / N38

Table 11: Physics of underwater searching
MP 5x2.7/1.2x5 S / N38

Pros as well as cons of Nd₂Fe₁₄B magnets.