Product available Ships today (order by 14:00)

MP 41x15x10 / N38 - ring magnet

Name: Dhit sp. z o.o.
Address: Kościuszki 6A, Ożarów Mazowiecki, mazowieckie, 05-850, PL
Telephone: +48 22 499 98 98
Price range: 1-6500 PLN
Rating: 5

ring magnet

Catalog no 030200

GTIN/EAN: 5906301812173

5.00

Diameter

41 mm [±0,1 mm]

internal diameter Ø

15 mm [±0,1 mm]

Height

10 mm [±0,1 mm]

Weight

85.77 g

Magnetization Direction

↑ axial

Load capacity

24.44 kg / 239.78 N

Magnetic Induction

271.77 mT / 2718 Gs

Coating

[NiCuNi] Nickel

view technical specifications »

50.00 ZŁ with VAT / pcs + price for transport

40.65 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs

40.65 ZŁ

50.00 ZŁ

price from 20 pcs

38.21 ZŁ

47.00 ZŁ

price from 70 pcs

35.77 ZŁ

44.00 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Want to negotiate?

Contact us by phone +48 888 99 98 98 alternatively get in touch through request form through our site.
Specifications and structure of magnets can be reviewed with our our magnetic calculator.

Same-day shipping for orders placed before 14:00.

Technical parameters of the product - MP 41x15x10 / N38 - ring magnet

Specification / characteristics - MP 41x15x10 / N38 - ring magnet

properties

properties	values
Cat. no.	030200
GTIN/EAN	5906301812173
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	41 mm [±0,1 mm]
internal diameter Ø	15 mm [±0,1 mm]
Height	10 mm [±0,1 mm]
Weight	85.77 g
Magnetization Direction	↑ axial
Load capacity ~ ?	24.44 kg / 239.78 N
Magnetic Induction ~ ?	271.77 mT / 2718 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MP 41x15x10 / 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 - technical parameters

These values are the direct effect of a engineering calculation. Results rely on models for the class Nd₂Fe₁₄B. Operational performance might slightly deviate from the simulation results. Treat these data as a preliminary roadmap when designing systems.

Table 1: Static pull force (force vs gap) - interaction chart
MP 41x15x10 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	5232 Gs 523.2 mT	24.44 kg / 53.88 pounds 24440.0 g / 239.8 N	crushing
1 mm	4978 Gs 497.8 mT	22.12 kg / 48.77 pounds 22120.4 g / 217.0 N	crushing
2 mm	4720 Gs 472.0 mT	19.89 kg / 43.85 pounds 19888.8 g / 195.1 N	crushing
3 mm	4464 Gs 446.4 mT	17.79 kg / 39.22 pounds 17788.4 g / 174.5 N	crushing
5 mm	3964 Gs 396.4 mT	14.03 kg / 30.93 pounds 14030.8 g / 137.6 N	crushing
10 mm	2861 Gs 286.1 mT	7.31 kg / 16.11 pounds 7308.1 g / 71.7 N	warning
15 mm	2028 Gs 202.8 mT	3.67 kg / 8.09 pounds 3670.1 g / 36.0 N	warning
20 mm	1443 Gs 144.3 mT	1.86 kg / 4.10 pounds 1858.4 g / 18.2 N	safe
30 mm	770 Gs 77.0 mT	0.53 kg / 1.17 pounds 529.8 g / 5.2 N	safe
50 mm	280 Gs 28.0 mT	0.07 kg / 0.15 pounds 69.8 g / 0.7 N	safe

Pulling power weakens drastically per each millimeter of spacing. Remember that even the smallest gap (e.g., contamination, paint, veneer) noticeably diminishes the holding power. Magnets operate optimally in perfect adhesion; distance drastically cuts the power. Observe how quickly the load capacity drop, when the product does not touch directly to the steel surface. When designing the mounting, avoid unnecessary gaps.

Table 2: Vertical load (vertical surface)
MP 41x15x10 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	4.89 kg / 10.78 pounds 4888.0 g / 48.0 N
1 mm	Stal (~0.2)	4.42 kg / 9.75 pounds 4424.0 g / 43.4 N
2 mm	Stal (~0.2)	3.98 kg / 8.77 pounds 3978.0 g / 39.0 N
3 mm	Stal (~0.2)	3.56 kg / 7.84 pounds 3558.0 g / 34.9 N
5 mm	Stal (~0.2)	2.81 kg / 6.19 pounds 2806.0 g / 27.5 N
10 mm	Stal (~0.2)	1.46 kg / 3.22 pounds 1462.0 g / 14.3 N
15 mm	Stal (~0.2)	0.73 kg / 1.62 pounds 734.0 g / 7.2 N
20 mm	Stal (~0.2)	0.37 kg / 0.82 pounds 372.0 g / 3.6 N
30 mm	Stal (~0.2)	0.11 kg / 0.23 pounds 106.0 g / 1.0 N
50 mm	Stal (~0.2)	0.01 kg / 0.03 pounds 14.0 g / 0.1 N

This section presents the theoretical shear load necessary to cause the shifting of the magnet downwards along a upright steel plate (considering typical friction coefficient). The holding force varies with the air gap between the magnet and the metal.

Table 3: Vertical assembly (shearing) - vertical pull
MP 41x15x10 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	7.33 kg / 16.16 pounds 7332.0 g / 71.9 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	4.89 kg / 10.78 pounds 4888.0 g / 48.0 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	2.44 kg / 5.39 pounds 2444.0 g / 24.0 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	12.22 kg / 26.94 pounds 12220.0 g / 119.9 N

When mounting a element on a vertical surface (e.g., a car body), it you can count on barely approx. 1/5 of its maximum pull force. Gravity as well as a weak degree of grip mean that products slide down faster than they pop off the substrate. Want to create a hanger? Consider that the shear force is much weaker than the perpendicular breakaway force. On a slippery surface, the magnet will slide down under a noticeably lighter cargo. Using a rubber coating can effectively raise the stability.

Table 4: Material efficiency (saturation) - power losses
MP 41x15x10 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	5%	1.22 kg / 2.69 pounds 1222.0 g / 12.0 N
1 mm	13%	3.06 kg / 6.74 pounds 3055.0 g / 30.0 N
2 mm	25%	6.11 kg / 13.47 pounds 6110.0 g / 59.9 N
3 mm	38%	9.17 kg / 20.21 pounds 9165.0 g / 89.9 N
5 mm	63%	15.28 kg / 33.68 pounds 15275.0 g / 149.8 N
10 mm	100%	24.44 kg / 53.88 pounds 24440.0 g / 239.8 N
11 mm	100%	24.44 kg / 53.88 pounds 24440.0 g / 239.8 N
12 mm	100%	24.44 kg / 53.88 pounds 24440.0 g / 239.8 N

A thin metal plate is not enough to take in the full magnetic flux, which squanders power of the holder. If you install a neodymium to a too thin substrate, the flux will penetrate right through and the attraction force will be weaker. To achieve the maximum of this magnet's power, you require a sufficiently solid element of steel. The saturation effect means that on delicate walls (e.g., appliance housings), the holder shows lower pull force. We suggest choosing the steel dimension based on the following data.

Table 5: Thermal resistance (material behavior) - thermal limit
MP 41x15x10 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	24.44 kg / 53.88 pounds 24440.0 g / 239.8 N	OK
40 °C	-2.2%	23.90 kg / 52.70 pounds 23902.3 g / 234.5 N	OK
60 °C	-4.4%	23.36 kg / 51.51 pounds 23364.6 g / 229.2 N	OK
80 °C	-6.6%	22.83 kg / 50.32 pounds 22827.0 g / 223.9 N
100 °C	-28.8%	17.40 kg / 38.36 pounds 17401.3 g / 170.7 N

Standard neodymium magnets lose power past the thermal threshold. Watch out for overheating – high temperature can permanently demagnetize this magnet. With increasing heat, the neodymium's power momentarily lowers. Do not use this product close to heaters higher than its safe range. Ignoring the limit will lead to permanent loss of magnetic properties.

*Important note: Thermal stability is determined by both grade, but also on the magnet's shape. Thin magnets (low permeance coefficient) risk losing magnetic properties under lower heat stress compared to rod magnets. The danger warning in the table indicates a risk of irreversible loss for this specific geometry.

Table 6: Two magnets (attraction) - field collision
MP 41x15x10 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Sliding Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	178.13 kg / 392.71 pounds 5 907 Gs	26.72 kg / 58.91 pounds 26719 g / 262.1 N	N/A
1 mm	169.67 kg / 374.06 pounds 10 213 Gs	25.45 kg / 56.11 pounds 25451 g / 249.7 N	152.70 kg / 336.65 pounds ~0 Gs
2 mm	161.22 kg / 355.43 pounds 9 955 Gs	24.18 kg / 53.32 pounds 24183 g / 237.2 N	145.10 kg / 319.89 pounds ~0 Gs
3 mm	152.98 kg / 337.26 pounds 9 697 Gs	22.95 kg / 50.59 pounds 22947 g / 225.1 N	137.68 kg / 303.53 pounds ~0 Gs
5 mm	137.18 kg / 302.42 pounds 9 183 Gs	20.58 kg / 45.36 pounds 20577 g / 201.9 N	123.46 kg / 272.18 pounds ~0 Gs
10 mm	102.26 kg / 225.45 pounds 7 929 Gs	15.34 kg / 33.82 pounds 15339 g / 150.5 N	92.04 kg / 202.90 pounds ~0 Gs
20 mm	53.26 kg / 117.43 pounds 5 722 Gs	7.99 kg / 17.61 pounds 7990 g / 78.4 N	47.94 kg / 105.69 pounds ~0 Gs
50 mm	7.08 kg / 15.62 pounds 2 087 Gs	1.06 kg / 2.34 pounds 1063 g / 10.4 N	6.38 kg / 14.06 pounds ~0 Gs
60 mm	3.86 kg / 8.51 pounds 1 541 Gs	0.58 kg / 1.28 pounds 579 g / 5.7 N	3.48 kg / 7.66 pounds ~0 Gs
70 mm	2.20 kg / 4.84 pounds 1 162 Gs	0.33 kg / 0.73 pounds 330 g / 3.2 N	1.98 kg / 4.36 pounds ~0 Gs
80 mm	1.30 kg / 2.87 pounds 895 Gs	0.20 kg / 0.43 pounds 195 g / 1.9 N	1.17 kg / 2.58 pounds ~0 Gs
90 mm	0.80 kg / 1.76 pounds 701 Gs	0.12 kg / 0.26 pounds 120 g / 1.2 N	0.72 kg / 1.59 pounds ~0 Gs
100 mm	0.51 kg / 1.12 pounds 559 Gs	0.08 kg / 0.17 pounds 76 g / 0.7 N	0.46 kg / 1.01 pounds ~0 Gs

Two magnets interact from a wider radius than a magnet and steel setup. Such a system of two magnets generates a stronger field and a wider radius of operation. Designing a solid fastener? Use a pair of magnets instead of one magnet and a striker plate. Exercise caution that when attracting two neodymiums, the collision energy is extreme. The repulsion force is marginally weaker than the attraction, but still significant.
*Flux density in repulsion mode reaches ~0 Gs at the geometric center between the magnets (caused by magnetic field nullification).
Attention: Figures apply to shear force of a pair of matching magnets (friction coefficient ~0.15 for Ni-Ni plating).

Table 7: Safety (HSE) (implants) - warnings
MP 41x15x10 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	24.0 cm
Hearing aid	10 Gs (1.0 mT)	19.0 cm
Mechanical watch	20 Gs (2.0 mT)	15.0 cm
Mobile device	40 Gs (4.0 mT)	11.5 cm
Car key	50 Gs (5.0 mT)	10.5 cm
Payment card	400 Gs (40.0 mT)	4.5 cm
HDD hard drive	600 Gs (60.0 mT)	3.5 cm

Powerful magnet radiation is a real danger to electronics as well as medical implants. These magnets produce a field that destroys function of sensitive medical devices. Notice: the unseen radiation passes through tissues and housings. Increased vigilance must be taken by people with hearing aids and insulin pumps. The risk also applies to: automatic timepieces, remotes, speakers, and displays. Do not place the magnet near cards, hard drives, or precise measuring instruments.

Table 8: Dynamics (kinetic energy) - collision effects
MP 41x15x10 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	19.95 km/h (5.54 m/s)	1.32 J
30 mm	29.88 km/h (8.30 m/s)	2.96 J
50 mm	38.13 km/h (10.59 m/s)	4.81 J
100 mm	53.84 km/h (14.96 m/s)	9.59 J

Neodymium magnets are delicate – a strong collision with metal risks their cracking. Watch the impact speed – a neodymium left loose becomes dangerous. Striking energy can trigger coating fragments or dangerous crushing to skin. Always hold the magnet during mounting so it doesn't slam with momentum against the metal. A contact at a velocity of dozens of km/h means shattering of the magnet. Wear eye protection when playing with powerful specimens.

Table 9: Coating parameters (durability)
MP 41x15x10 / N38

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

The following table defines the conditions under which this product can be safely used. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Construction data (Flux)
MP 41x15x10 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	56 505 Mx	565.0 µWb
P_c Coefficient	0.80	High (Stable)

Flux value passing through the magnet pole. Key data in coil applications and motors. P_c value defines the magnet's operating point.

Table 11: Hydrostatics and buoyancy
MP 41x15x10 / N38

Environment	Effective steel pull	Effect
Air (land)	24.44 kg	Standard
Water (riverbed)	27.98 kg (+3.54 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!

In water, the magnet feels stronger thanks to Archimedes' principle. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Shear force

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

2. Efficiency vs thickness

*Thin metal sheet (e.g. computer case) drastically limits the holding force.

3. Heat tolerance

*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) = 0.80

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

Material specification

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: 030200-2026

Measurement Calculator

Pulling force

Force in kg

Newtons (N)

Pounds (lbs)

Field Strength

Induction (Gs)

Tesla (T)

Simply complete any input, and the converter fill in the rest automatically.

Other deals

Product available Ships today (order by 14:00)

UMT 20x25 black / N38 - board holder

3.49 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

FM Ruszt magnetyczny do leja fi 200 dwupoziomowy / N52 - magnetic filter

4458.75 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

MP 15x7/3.5x5 / N38 - ring magnet

3.44 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

UMC 25x6/4x8 / N38 - cylindrical magnetic holder

11.70 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. Mounting is clean and reversible, unlike gluing. This product with a force of 24.44 kg works great as a door latch, 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.

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. Always check that the screw head is not larger than the outer diameter of the magnet (41 mm), so it doesn't protrude beyond the outline.

It is a magnetic ring with a diameter of 41 mm and thickness 10 mm. The pulling force of this model is an impressive 24.44 kg, which translates to 239.78 N in newtons. The product has a [NiCuNi] coating and is made of NdFeB material. Inner hole dimension: 15 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.

Advantages as well as disadvantages of Nd₂Fe₁₄B magnets.

Pros

In addition to their pulling strength, neodymium magnets provide the following advantages:

They virtually do not lose power, because even after 10 years the decline in efficiency is only ~1% (according to literature),
Neodymium magnets remain exceptionally resistant to demagnetization caused by external magnetic fields,
In other words, due to the metallic layer of silver, the element gains visual value,
Neodymium magnets create maximum magnetic induction on a small surface, which allows for strong attraction,
Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and are able to act (depending on the shape) even at a temperature of 230°C or more...
Thanks to versatility in designing and the capacity to modify to unusual requirements,
Significant place in innovative solutions – they are used in mass storage devices, electric drive systems, precision medical tools, and complex engineering applications.
Thanks to concentrated force, small magnets offer high operating force, in miniature format,

Disadvantages

Disadvantages of NdFeB magnets:

At very strong impacts they can crack, therefore we recommend placing them in steel cases. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
NdFeB magnets lose force when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of strength (a factor is the shape and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely resistant to heat
Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material stable to moisture, when using outdoors
We suggest cover - magnetic holder, due to difficulties in producing threads inside the magnet and complex forms.
Potential hazard to health – tiny shards of magnets can be dangerous, when accidentally swallowed, which gains importance in the context of child safety. It is also worth noting that small components of these products can be problematic in diagnostics medical in case of swallowing.
Due to neodymium price, their price is higher than average,

Lifting parameters

Maximum holding power of the magnet – what it depends on?

The force parameter is a result of laboratory testing executed under the following configuration:

on a base made of structural steel, perfectly concentrating the magnetic field
whose thickness is min. 10 mm
characterized by lack of roughness
without any insulating layer between the magnet and steel
under perpendicular force direction (90-degree angle)
at conditions approx. 20°C

Impact of factors on magnetic holding capacity in practice

It is worth knowing that the application force will differ subject to the following factors, in order of importance:

Clearance – the presence of foreign body (paint, tape, gap) interrupts the magnetic circuit, which lowers power steeply (even by 50% at 0.5 mm).
Force direction – remember that the magnet holds strongest perpendicularly. Under shear forces, the capacity drops drastically, often to levels of 20-30% of the maximum value.
Plate thickness – too thin plate causes magnetic saturation, causing part of the flux to be lost into the air.
Chemical composition of the base – low-carbon steel gives the best results. Alloy admixtures lower magnetic permeability and holding force.
Smoothness – ideal contact is possible only on smooth steel. Any scratches and bumps create air cushions, reducing force.
Temperature influence – high temperature reduces magnetic field. Too high temperature can permanently demagnetize the magnet.

Holding force was tested on the plate surface of 20 mm thickness, when the force acted perpendicularly, in contrast under shearing force the load capacity is reduced by as much as fivefold. In addition, even a small distance between the magnet’s surface and the plate reduces the lifting capacity.

Safe handling of neodymium magnets

Handling rules

Before starting, read the rules. Sudden snapping can break the magnet or injure your hand. Be predictive.

Bone fractures

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

Allergy Warning

It is widely known that nickel (the usual finish) is a strong allergen. If you have an allergy, prevent touching magnets with bare hands and choose encased magnets.

Dust explosion hazard

Powder created during cutting of magnets is self-igniting. Avoid drilling into magnets unless you are an expert.

Magnetic media

Do not bring magnets near a purse, computer, or TV. The magnetism can irreversibly ruin these devices and wipe information from cards.

Phone sensors

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

Danger to pacemakers

Life threat: Neodymium magnets can deactivate pacemakers and defibrillators. Do not approach if you have medical devices.

Keep away from children

Neodymium magnets are not intended for children. Swallowing a few magnets can lead to them connecting inside the digestive tract, which poses a direct threat to life and necessitates urgent medical intervention.

Thermal limits

Standard neodymium magnets (N-type) undergo demagnetization when the temperature surpasses 80°C. Damage is permanent.

Beware of splinters

Beware of splinters. Magnets can fracture upon violent connection, launching sharp fragments into the air. We recommend safety glasses.

Safety First! Need more info? Check our post: Are neodymium magnets dangerous?

MP 41x15x10 / N38 - ring magnet

Technical parameters of the product - MP 41x15x10 / N38 - ring magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical simulation of the product - technical parameters

Table 1: Static pull force (force vs gap) - interaction chart MP 41x15x10 / N38

Table 2: Vertical load (vertical surface) MP 41x15x10 / N38

Table 3: Vertical assembly (shearing) - vertical pull MP 41x15x10 / N38

Table 4: Material efficiency (saturation) - power losses MP 41x15x10 / N38

Table 5: Thermal resistance (material behavior) - thermal limit MP 41x15x10 / N38

Table 6: Two magnets (attraction) - field collision MP 41x15x10 / N38

Table 7: Safety (HSE) (implants) - warnings MP 41x15x10 / N38

Table 8: Dynamics (kinetic energy) - collision effects MP 41x15x10 / N38

Table 9: Coating parameters (durability) MP 41x15x10 / N38

Table 10: Construction data (Flux) MP 41x15x10 / N38

Table 11: Hydrostatics and buoyancy MP 41x15x10 / N38

1. Shear force

2. Efficiency vs thickness

3. Heat tolerance

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

Material specification

Environmental data

Pulling force

Field Strength

Other deals

UMT 20x25 black / N38 - board holder

FM Ruszt magnetyczny do leja fi 200 dwupoziomowy / N52 - magnetic filter

MP 15x7/3.5x5 / N38 - ring magnet

UMC 25x6/4x8 / N38 - cylindrical magnetic holder

Advantages as well as disadvantages of Nd2Fe14B magnets.

Pros

Disadvantages

Lifting parameters

Maximum holding power of the magnet – what it depends on?

Impact of factors on magnetic holding capacity in practice

Safe handling of neodymium magnets

Handling rules

Bone fractures

Allergy Warning

Dust explosion hazard

Magnetic media

Phone sensors

Danger to pacemakers

Keep away from children

Thermal limits

Beware of splinters

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs gap) - interaction chart
MP 41x15x10 / N38

Table 2: Vertical load (vertical surface)
MP 41x15x10 / N38

Table 3: Vertical assembly (shearing) - vertical pull
MP 41x15x10 / N38

Table 4: Material efficiency (saturation) - power losses
MP 41x15x10 / N38

Table 5: Thermal resistance (material behavior) - thermal limit
MP 41x15x10 / N38

Table 6: Two magnets (attraction) - field collision
MP 41x15x10 / N38

Table 7: Safety (HSE) (implants) - warnings
MP 41x15x10 / N38

Table 8: Dynamics (kinetic energy) - collision effects
MP 41x15x10 / N38

Table 9: Coating parameters (durability)
MP 41x15x10 / N38

Table 10: Construction data (Flux)
MP 41x15x10 / N38

Table 11: Hydrostatics and buoyancy
MP 41x15x10 / N38

Advantages as well as disadvantages of Nd₂Fe₁₄B magnets.