Product available Ships tomorrow

MP 10x7/3.5x3 / 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 030180

GTIN/EAN: 5906301811978

5.00

Diameter

10 mm [±0,1 mm]

internal diameter Ø

7/3.5 mm [±0,1 mm]

Height

3 mm [±0,1 mm]

Weight

1.55 g

Magnetization Direction

↑ axial

Load capacity

1.88 kg / 18.47 N

Magnetic Induction

318.70 mT / 3187 Gs

Coating

[NiCuNi] Nickel

technical details »

0.824 ZŁ with VAT / pcs + price for transport

0.670 ZŁ net + 23% VAT / pcs

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Technical - MP 10x7/3.5x3 / N38 - ring magnet

Specification / characteristics - MP 10x7/3.5x3 / N38 - ring magnet

properties

properties	values
Cat. no.	030180
GTIN/EAN	5906301811978
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	10 mm [±0,1 mm]
internal diameter Ø	7/3.5 mm [±0,1 mm]
Height	3 mm [±0,1 mm]
Weight	1.55 g
Magnetization Direction	↑ axial
Load capacity ~ ?	1.88 kg / 18.47 N
Magnetic Induction ~ ?	318.70 mT / 3187 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MP 10x7/3.5x3 / 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 analysis of the product - data

The following information constitute the result of a engineering simulation. Values are based on algorithms for the material Nd₂Fe₁₄B. Actual conditions might slightly differ from theoretical values. Use these calculations as a reference point when designing systems.

Table 1: Static force (force vs gap) - interaction chart
MP 10x7/3.5x3 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	2813 Gs 281.3 mT	1.88 kg / 4.14 LBS 1880.0 g / 18.4 N	low risk
1 mm	2373 Gs 237.3 mT	1.34 kg / 2.95 LBS 1338.1 g / 13.1 N	low risk
2 mm	1870 Gs 187.0 mT	0.83 kg / 1.83 LBS 830.9 g / 8.2 N	low risk
3 mm	1416 Gs 141.6 mT	0.48 kg / 1.05 LBS 476.6 g / 4.7 N	low risk
5 mm	785 Gs 78.5 mT	0.15 kg / 0.32 LBS 146.4 g / 1.4 N	low risk
10 mm	214 Gs 21.4 mT	0.01 kg / 0.02 LBS 10.9 g / 0.1 N	low risk
15 mm	81 Gs 8.1 mT	0.00 kg / 0.00 LBS 1.6 g / 0.0 N	low risk
20 mm	38 Gs 3.8 mT	0.00 kg / 0.00 LBS 0.3 g / 0.0 N	low risk
30 mm	12 Gs 1.2 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	low risk
50 mm	3 Gs 0.3 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	low risk

Grip strength drops sharply per each millimeter of spacing. Remember that even a microscopic distance (e.g., dirt, paint, veneer) strongly weakens the grip. Magnetic products operate strongest during direct contact; air break kills the force. See how flashily the load capacity drop, when the product does not touch directly to the metal substrate. When planning the arrangement, eliminate additional spacers.

Table 2: Vertical hold (vertical surface)
MP 10x7/3.5x3 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.38 kg / 0.83 LBS 376.0 g / 3.7 N
1 mm	Stal (~0.2)	0.27 kg / 0.59 LBS 268.0 g / 2.6 N
2 mm	Stal (~0.2)	0.17 kg / 0.37 LBS 166.0 g / 1.6 N
3 mm	Stal (~0.2)	0.10 kg / 0.21 LBS 96.0 g / 0.9 N
5 mm	Stal (~0.2)	0.03 kg / 0.07 LBS 30.0 g / 0.3 N
10 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 2.0 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 table below defines the approximate shear load needed to initiate the downward movement of the magnet downwards against a vertical metal surface (considering standard friction). This value is relative to the air gap between the magnet and the metal.

Table 3: Vertical assembly (sliding) - vertical pull
MP 10x7/3.5x3 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.56 kg / 1.24 LBS 564.0 g / 5.5 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.38 kg / 0.83 LBS 376.0 g / 3.7 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.19 kg / 0.41 LBS 188.0 g / 1.8 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.94 kg / 2.07 LBS 940.0 g / 9.2 N

When hanging a holder on a vertical surface (e.g., a board), it will maintain barely approx. 20%-30% of nominal attraction strength. Gravitational force and a low friction coefficient influence the fact that holders slip faster than they pop off the substrate. Planning a hanger? Note that the sliding force is much weaker than the perpendicular breakaway force. On a painted metal, the magnet will slip down under a much lighter cargo. Application of an anti-slip coating can significantly improve the result.

Table 4: Steel thickness (saturation) - power losses
MP 10x7/3.5x3 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.19 kg / 0.41 LBS 188.0 g / 1.8 N
1 mm	25%	0.47 kg / 1.04 LBS 470.0 g / 4.6 N
2 mm	50%	0.94 kg / 2.07 LBS 940.0 g / 9.2 N
3 mm	75%	1.41 kg / 3.11 LBS 1410.0 g / 13.8 N
5 mm	100%	1.88 kg / 4.14 LBS 1880.0 g / 18.4 N
10 mm	100%	1.88 kg / 4.14 LBS 1880.0 g / 18.4 N
11 mm	100%	1.88 kg / 4.14 LBS 1880.0 g / 18.4 N
12 mm	100%	1.88 kg / 4.14 LBS 1880.0 g / 18.4 N

A thin metal plate is incapable of focus the entire magnetic field, which wastes potential of the holder. Should you install a neodymium to a too thin substrate, the magnetism will pass right through and the holding will be smaller. To squeeze 100% of this magnet's power, you require a sufficiently solid backing of metal. The saturation phenomenon means that on sheet metal structures (e.g., car bodies), the product holds weaker. We suggest choosing the steel thickness based on the following data.

Table 5: Working in heat (material behavior) - thermal limit
MP 10x7/3.5x3 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	1.88 kg / 4.14 LBS 1880.0 g / 18.4 N	OK
40 °C	-2.2%	1.84 kg / 4.05 LBS 1838.6 g / 18.0 N	OK
60 °C	-4.4%	1.80 kg / 3.96 LBS 1797.3 g / 17.6 N
80 °C	-6.6%	1.76 kg / 3.87 LBS 1755.9 g / 17.2 N
100 °C	-28.8%	1.34 kg / 2.95 LBS 1338.6 g / 13.1 N

Classic neodymiums change their properties strength above the temperature limit. Watch out for overheating – excessive heat can permanently damage this product. With increasing heat, the neodymium's force momentarily decreases. Refrain from using this magnet near heat sources exceeding its operating temperature limit. Exceeding the critical threshold will lead to destruction of magnetism.

*Technical advisory: Heat tolerance depends not only on the material grade, as well as the dimension ratios. Low-profile magnets (low Pc) may lose charge permanently under lower heat stress than taller cylinders. Red status in the table signals permanent field degradation for this specific geometry.

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MP 10x7/3.5x3 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	2.86 kg / 6.30 LBS 4 419 Gs	0.43 kg / 0.95 LBS 429 g / 4.2 N	N/A
1 mm	2.46 kg / 5.43 LBS 5 224 Gs	0.37 kg / 0.81 LBS 370 g / 3.6 N	2.22 kg / 4.89 LBS ~0 Gs
2 mm	2.03 kg / 4.49 LBS 4 747 Gs	0.31 kg / 0.67 LBS 305 g / 3.0 N	1.83 kg / 4.04 LBS ~0 Gs
3 mm	1.62 kg / 3.58 LBS 4 242 Gs	0.24 kg / 0.54 LBS 244 g / 2.4 N	1.46 kg / 3.22 LBS ~0 Gs
5 mm	0.96 kg / 2.12 LBS 3 266 Gs	0.14 kg / 0.32 LBS 144 g / 1.4 N	0.87 kg / 1.91 LBS ~0 Gs
10 mm	0.22 kg / 0.49 LBS 1 570 Gs	0.03 kg / 0.07 LBS 33 g / 0.3 N	0.20 kg / 0.44 LBS ~0 Gs
20 mm	0.02 kg / 0.04 LBS 429 Gs	0.00 kg / 0.01 LBS 2 g / 0.0 N	0.01 kg / 0.03 LBS ~0 Gs
50 mm	0.00 kg / 0.00 LBS 41 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 25 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 16 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 11 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 8 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 6 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs

Two magnets interact from a wider radius than a magnet and sheet setup. Such a system of magnet-to-magnet generates a stronger field and a further horizon of performance. Want to build a solid fastener? Apply two magnets instead of one magnet and a steel. Exercise caution that when connecting a pair of magnets, the collision energy is huge. The repulsion force is marginally weaker than the attraction, but still large.
*The magnetic induction between like poles reaches ~0 Gs in the exact middle between the magnets (caused by magnetic field nullification).
Important: Calculations demonstrate shear force of a pair of matching neodymium magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Hazards (implants) - precautionary measures
MP 10x7/3.5x3 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	4.5 cm
Hearing aid	10 Gs (1.0 mT)	3.5 cm
Mechanical watch	20 Gs (2.0 mT)	3.0 cm
Mobile device	40 Gs (4.0 mT)	2.0 cm
Car key	50 Gs (5.0 mT)	2.0 cm
Payment card	400 Gs (40.0 mT)	1.0 cm
HDD hard drive	600 Gs (60.0 mT)	1.0 cm

Powerful magnet radiation poses a real danger to IT equipment and medical implants. These magnets produce a flux that disrupts operation of digital equipment. Remember: the unseen radiation penetrates the body and housings. Exceptional care must be exercised by people with hearing aids and insulin pumps. Influence will be felt by: mechanical watches, car keys, speakers, and screens. Do not place the magnet near cards, HDD media, or sensitive navigation tools.

Table 8: Impact energy (cracking risk) - collision effects
MP 10x7/3.5x3 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	35.25 km/h (9.79 m/s)	0.07 J
30 mm	60.84 km/h (16.90 m/s)	0.22 J
50 mm	78.54 km/h (21.82 m/s)	0.37 J
100 mm	111.07 km/h (30.85 m/s)	0.74 J

Magnetic elements are very brittle – a collision with steel causes immediate chipping. Control the attraction moment – a magnet released freely turns into a projectile. Kinetic force can cause material chips or painful pinches to skin. Hold the magnet firmly during bringing near metal so it doesn't hit violently against the metal. A contact at a velocity of dozens of km/h ends with a crack of the magnet. Wear eye protection when working with powerful specimens.

Table 9: Coating parameters (durability)
MP 10x7/3.5x3 / 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. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Electrical data (Flux)
MP 10x7/3.5x3 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	1 899 Mx	19.0 µWb
P_c Coefficient	0.37	Low (Flat)

Flux value passing through the pole surface. Key data when building generators as well as sensors. The P_c coefficient determines the magnet's operating point.

Table 11: Physics of underwater searching
MP 10x7/3.5x3 / N38

Environment	Effective steel pull	Effect
Air (land)	1.88 kg	Standard
Water (riverbed)	2.15 kg (+0.27 kg buoyancy gain)	+14.5%

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

Contrary to myths, water does not block the magnetic field. However, remember the water resistance when pulling the rope quickly.

1. Wall mount (shear)

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

2. Steel thickness impact

*Thin steel (e.g. 0.5mm PC case) severely 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) = 0.37

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.

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%

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: 030180-2026

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MP 25x5x5 / N38 - ring magnet

6.00 ZŁ brutto / pcs

It is ideally suited for places where solid attachment of the magnet to the substrate is required without the risk of detachment. Thanks to the hole (often for a screw), this model enables easy screwing to wood, wall, plastic, or metal. This product with a force of 1.88 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. When tightening the screw, you must maintain caution. We recommend tightening manually with a screwdriver, not an impact driver, because too much pressure 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.

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. This product is dedicated for indoor use. For outdoor applications, we recommend choosing magnets in hermetic housing or additional protection with varnish.

The inner hole diameter determines the maximum size of the mounting element. 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 (10 mm), so it doesn't protrude beyond the outline.

The presented product is a ring magnet with dimensions Ø10 mm (outer diameter) and height 3 mm. The pulling force of this model is an impressive 1.88 kg, which translates to 18.47 N in newtons. The product has a [NiCuNi] coating and is made of NdFeB material. Inner hole dimension: 7/3.5 mm.

These magnets are magnetized axially (through the thickness), which means one flat side is the N pole and the other is S. 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.

Advantages as well as disadvantages of Nd₂Fe₁₄B magnets.

Advantages

Besides their remarkable pulling force, neodymium magnets offer the following advantages:

They virtually do not lose power, because even after 10 years the performance loss is only ~1% (according to literature),
Neodymium magnets are distinguished by extremely resistant to loss of magnetic properties caused by magnetic disturbances,
By applying a lustrous layer of silver, the element presents an proper look,
Neodymium magnets create maximum magnetic induction on a their surface, which allows for strong attraction,
Thanks to resistance to high temperature, they can operate (depending on the shape) even at temperatures up to 230°C and higher...
Due to the option of flexible shaping and customization to unique needs, NdFeB magnets can be manufactured in a variety of shapes and sizes, which makes them more universal,
Key role in modern technologies – they find application in computer drives, drive modules, diagnostic systems, also technologically advanced constructions.
Compactness – despite small sizes they generate large force, making them ideal for precision applications

Weaknesses

Problematic aspects of neodymium magnets: tips and applications.

At strong impacts they can crack, therefore we recommend placing them in strong housings. A metal housing provides additional protection against damage and increases the magnet's durability.
We warn that neodymium magnets can reduce their power at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material resistant to moisture, when using outdoors
Due to limitations in realizing threads and complicated forms in magnets, we recommend using casing - magnetic mount.
Possible danger to health – tiny shards of magnets pose a threat, if swallowed, which is particularly important in the context of child safety. It is also worth noting that tiny parts of these magnets can be problematic in diagnostics medical in case of swallowing.
Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Pull force analysis

Maximum holding power of the magnet – what affects it?

The lifting capacity listed is a theoretical maximum value conducted under specific, ideal conditions:

with the contact of a sheet made of special test steel, ensuring full magnetic saturation
with a cross-section minimum 10 mm
with a surface perfectly flat
under conditions of gap-free contact (metal-to-metal)
under vertical force direction (90-degree angle)
at ambient temperature room level

Impact of factors on magnetic holding capacity in practice

Bear in mind that the magnet holding will differ subject to elements below, starting with the most relevant:

Distance – the presence of foreign body (rust, dirt, gap) interrupts the magnetic circuit, which lowers capacity rapidly (even by 50% at 0.5 mm).
Force direction – note that the magnet has greatest strength perpendicularly. Under shear forces, the holding force drops significantly, often to levels of 20-30% of the maximum value.
Substrate thickness – for full efficiency, the steel must be adequately massive. Paper-thin metal restricts the lifting capacity (the magnet "punches through" it).
Plate material – low-carbon steel gives the best results. Higher carbon content reduce magnetic permeability and holding force.
Smoothness – full contact is possible only on smooth steel. Rough texture reduce the real contact area, weakening the magnet.
Thermal conditions – neodymium magnets have a negative temperature coefficient. At higher temperatures they are weaker, and at low temperatures they can be stronger (up to a certain limit).

Lifting capacity testing was conducted on plates with a smooth surface of optimal thickness, under perpendicular forces, whereas under shearing force the lifting capacity is smaller. In addition, even a small distance between the magnet and the plate reduces the holding force.

Safe handling of NdFeB magnets

Magnetic media

Data protection: Neodymium magnets can damage payment cards and delicate electronics (pacemakers, hearing aids, timepieces).

Phone sensors

Navigation devices and mobile phones are extremely sensitive to magnetism. Close proximity with a powerful NdFeB magnet can permanently damage the sensors in your phone.

Heat sensitivity

Standard neodymium magnets (N-type) lose power when the temperature exceeds 80°C. This process is irreversible.

Metal Allergy

Some people experience a hypersensitivity to nickel, which is the standard coating for NdFeB magnets. Prolonged contact may cause dermatitis. It is best to use protective gloves.

Physical harm

Mind your fingers. Two large magnets will snap together immediately with a force of several hundred kilograms, crushing anything in their path. Be careful!

Magnet fragility

Beware of splinters. Magnets can fracture upon violent connection, launching sharp fragments into the air. Eye protection is mandatory.

Safe operation

Handle with care. Rare earth magnets act from a distance and snap with massive power, often faster than you can react.

Machining danger

Fire hazard: Neodymium dust is explosive. Do not process magnets in home conditions as this may cause fire.

Pacemakers

For implant holders: Powerful magnets disrupt medical devices. Keep at least 30 cm distance or request help to handle the magnets.

This is not a toy

NdFeB magnets are not intended for children. Accidental ingestion of a few magnets can lead to them attracting across intestines, which constitutes a direct threat to life and requires immediate surgery.

Safety First! Learn more about hazards in the article: Magnet Safety Guide.

MP 10x7/3.5x3 / N38 - ring magnet

Technical - MP 10x7/3.5x3 / N38 - ring magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering analysis of the product - data

Table 1: Static force (force vs gap) - interaction chart MP 10x7/3.5x3 / N38

Table 2: Vertical hold (vertical surface) MP 10x7/3.5x3 / N38

Table 3: Vertical assembly (sliding) - vertical pull MP 10x7/3.5x3 / N38

Table 4: Steel thickness (saturation) - power losses MP 10x7/3.5x3 / N38

Table 5: Working in heat (material behavior) - thermal limit MP 10x7/3.5x3 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system MP 10x7/3.5x3 / N38

Table 7: Hazards (implants) - precautionary measures MP 10x7/3.5x3 / N38

Table 8: Impact energy (cracking risk) - collision effects MP 10x7/3.5x3 / N38

Table 9: Coating parameters (durability) MP 10x7/3.5x3 / N38

Table 10: Electrical data (Flux) MP 10x7/3.5x3 / N38

Table 11: Physics of underwater searching MP 10x7/3.5x3 / N38

1. Wall mount (shear)

2. Steel thickness impact

3. Thermal stability

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

Chemical composition

Sustainability

Magnet pull force

Magnetic Field

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Advantages as well as disadvantages of Nd2Fe14B magnets.

Advantages

Weaknesses

Pull force analysis

Maximum holding power of the magnet – what affects it?

Impact of factors on magnetic holding capacity in practice

Safe handling of NdFeB magnets

Magnetic media

Phone sensors

Heat sensitivity

Metal Allergy

Physical harm

Magnet fragility

Safe operation

Machining danger

Pacemakers

This is not a toy

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs gap) - interaction chart
MP 10x7/3.5x3 / N38

Table 2: Vertical hold (vertical surface)
MP 10x7/3.5x3 / N38

Table 3: Vertical assembly (sliding) - vertical pull
MP 10x7/3.5x3 / N38

Table 4: Steel thickness (saturation) - power losses
MP 10x7/3.5x3 / N38

Table 5: Working in heat (material behavior) - thermal limit
MP 10x7/3.5x3 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MP 10x7/3.5x3 / N38

Table 7: Hazards (implants) - precautionary measures
MP 10x7/3.5x3 / N38

Table 8: Impact energy (cracking risk) - collision effects
MP 10x7/3.5x3 / N38

Table 9: Coating parameters (durability)
MP 10x7/3.5x3 / N38

Table 10: Electrical data (Flux)
MP 10x7/3.5x3 / N38

Table 11: Physics of underwater searching
MP 10x7/3.5x3 / N38

Advantages as well as disadvantages of Nd₂Fe₁₄B magnets.