Product available Ships tomorrow

MP 41x15x10 / 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 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

technical parameters »

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

Looking for a better price?

Contact us by phone +48 888 99 98 98 otherwise send us a note using inquiry form the contact section.
Parameters and appearance of a magnet can be calculated with our magnetic calculator.

Orders submitted before 14:00 will be dispatched today!

Technical 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 analysis of the assembly - technical parameters

These values constitute the direct effect of a physical simulation. Values were calculated on models for the class Nd₂Fe₁₄B. Operational parameters might slightly deviate from the simulation results. Use these calculations as a supplementary guide during assembly planning.

Table 1: Static pull force (pull vs distance) - power drop
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 LBS 24440.0 g / 239.8 N	crushing
1 mm	4978 Gs 497.8 mT	22.12 kg / 48.77 LBS 22120.4 g / 217.0 N	crushing
2 mm	4720 Gs 472.0 mT	19.89 kg / 43.85 LBS 19888.8 g / 195.1 N	crushing
3 mm	4464 Gs 446.4 mT	17.79 kg / 39.22 LBS 17788.4 g / 174.5 N	crushing
5 mm	3964 Gs 396.4 mT	14.03 kg / 30.93 LBS 14030.8 g / 137.6 N	crushing
10 mm	2861 Gs 286.1 mT	7.31 kg / 16.11 LBS 7308.1 g / 71.7 N	strong
15 mm	2028 Gs 202.8 mT	3.67 kg / 8.09 LBS 3670.1 g / 36.0 N	strong
20 mm	1443 Gs 144.3 mT	1.86 kg / 4.10 LBS 1858.4 g / 18.2 N	low risk
30 mm	770 Gs 77.0 mT	0.53 kg / 1.17 LBS 529.8 g / 5.2 N	low risk
50 mm	280 Gs 28.0 mT	0.07 kg / 0.15 LBS 69.8 g / 0.7 N	low risk

Magnetic force drops sharply with every mm of spacing. Remember that even the smallest gap (e.g., contamination, varnish, rust) noticeably reduces the pull force. Neodymiums operate most effectively at the point of direct contact; distance drastically cuts the power. Observe how quickly the parameters drop, when the magnet does not adhere flatly to the steel surface. When calculating the assembly, avoid unnecessary gaps.

Table 2: Vertical hold (wall)
MP 41x15x10 / N38

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

The following data indicates the estimated holding capacity necessary to initiate the downward movement of the magnet down against a vertical steel plate (assuming standard friction coefficient). This value is relative to the separation distance between the magnet and the metal.

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
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 LBS 7332.0 g / 71.9 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	4.89 kg / 10.78 LBS 4888.0 g / 48.0 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	2.44 kg / 5.39 LBS 2444.0 g / 24.0 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	12.22 kg / 26.94 LBS 12220.0 g / 119.9 N

When mounting a magnet on a vertical plane (e.g., a board), it you can count on only about 20%-30% of nominal attraction strength. Gravitational force as well as a low friction coefficient mean that magnets slide down easier than they pull off. Planning a wall mount? Note that the sliding force is significantly lower than the maximum static pull force. On a slippery surface, the magnet will slip down under a significantly smaller load. Using a rubber coating can drastically improve the result.

Table 4: Material efficiency (substrate influence) - 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 LBS 1222.0 g / 12.0 N
1 mm	13%	3.06 kg / 6.74 LBS 3055.0 g / 30.0 N
2 mm	25%	6.11 kg / 13.47 LBS 6110.0 g / 59.9 N
3 mm	38%	9.17 kg / 20.21 LBS 9165.0 g / 89.9 N
5 mm	63%	15.28 kg / 33.68 LBS 15275.0 g / 149.8 N
10 mm	100%	24.44 kg / 53.88 LBS 24440.0 g / 239.8 N
11 mm	100%	24.44 kg / 53.88 LBS 24440.0 g / 239.8 N
12 mm	100%	24.44 kg / 53.88 LBS 24440.0 g / 239.8 N

A too thin steel is not enough to conduct the entire magnetic field, which weakens actual performance of the magnet. Should you install a neodymium to a weak sheet, the flux will penetrate right through and the holding will be smaller. To utilize the maximum of this neodymium's power, you require a sufficiently solid element of metal. The material oversaturation means that on thin elements (e.g., car bodies), the product holds weaker. We advise picking the steel thickness from these parameters.

Table 5: Thermal stability (material behavior) - resistance threshold
MP 41x15x10 / N38

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

Classic neodymiums irreversibly lose strength after exceeding the maximum temperature. Protect against heat – excessive heat can permanently damage this product. As the temperature rises, the neodymium's capacity momentarily drops. Refrain from using this product near heat sources higher than its working range. Too high temperature will result in irreversible degradation of magnetic properties.

*Engineering note: Heat tolerance is determined by both grade, as well as the dimension ratios. Flat magnets (low permeance coefficient) are more susceptible to demagnetization sooner than long magnets. The danger warning in the table points to permanent field degradation for this specific geometry.

Table 6: Two magnets (repulsion) - forces in the system
MP 41x15x10 / N38

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

Two magnets interact from a significantly greater distance than a magnet and sheet setup. The setup of two magnets generates a stronger field and a wider radius of operation. Planning to create a solid fastener? Use a pair of magnets instead of one magnet and a steel. Remember that when connecting a pair of magnets, the collision energy is massive. The repulsion force is slightly lower than the connection force, but still large.
*Flux density between like poles is approximately ~0 Gs at the midpoint of the gap (resulting from vector opposition).
Attention: Estimates apply to sliding force of a pair of matching magnets (friction ~0.15 for Ni-Ni layer).

Table 7: Hazards (electronics) - 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
Timepiece	20 Gs (2.0 mT)	15.0 cm
Phone / Smartphone	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 poses a large risk to electronics as well as pacemakers. These neodymiums generate a field that disrupts operation of digital equipment. Notice: the unseen radiation acts through matter and housings. Increased vigilance must be taken by people with hearing aids and drug dispensers. The risk also applies to: automatic timepieces, car keys, membranes, and screens. Do not place the magnet near cards, hard drives, or sensitive navigation tools.

Table 8: Collisions (kinetic energy) - warning
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

Magnetic elements are very brittle – a strong collision with metal causes immediate chipping. Control the attraction moment – a magnet released freely speeds with massive force. Impact energy can trigger coating fragments or dangerous crushing to skin. Be sure to control the product during installation so it doesn't slam with momentum against the metal. A collision at high speed ends with a crack of the neodymium. Use safety goggles when handling with large magnets.

Table 9: Anti-corrosion coating 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 (P_c)
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 emitted by the magnet pole. Essential parameter for generator designers and motors. The P_c coefficient defines the working geometry.

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%

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

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

1. Wall mount (shear)

*Caution: On a vertical surface, the magnet holds only a fraction of its max power.

2. Steel thickness impact

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

3. Power loss vs temp

*For N38 grade, the safety limit is 80°C.

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 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 and environmental data

Elemental analysis

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: 030200-2026

Quick Unit Converter

Magnet pull force

Force in kg

Newtons (N)

lbs

Field Strength

Induction (Gs)

Tesla (T)

Input your figure into a field, and all other values change on the fly.

See more offers

Product available Ships tomorrow

MW 6x6 / N38 - cylindrical magnet

0.677 ZŁ brutto / pcs

Product available Ships tomorrow

HH 42x8.8 [M6] / N38 - through hole magnetic holder

29.89 ZŁ brutto / pcs

Product available Ships tomorrow

MP 10x6x4 / N38 - ring magnet

0.898 ZŁ brutto / pcs

Product available Ships tomorrow

MP 20x8/4x5 / N38 - ring magnet

7.75 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. 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. When tightening the screw, you must maintain caution. We recommend tightening manually with a screwdriver, not an impact driver, because excessive force will cause the ring to crack. The flat screw head should evenly press the magnet. Remember: cracking during assembly results from material properties, not a product defect.

Moisture can penetrate micro-cracks in the coating and cause oxidation of the magnet. Damage to the protective layer during assembly is the most common cause of rusting. If you must use it outside, paint it with anti-corrosion paint after mounting.

The inner hole diameter determines the maximum size of the mounting element. 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 (41 mm), so it doesn't protrude beyond the outline.

This model is characterized by dimensions Ø41x10 mm and a weight of 85.77 g. The key parameter here is the lifting capacity amounting to approximately 24.44 kg (force ~239.78 N). 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. If you want two such magnets screwed with cones facing each other (faces) to attract, you must connect them with opposite poles (N to S). We do not offer paired sets with marked poles in this category, but they are easy to match manually.

Advantages and disadvantages of neodymium magnets.

Strengths

In addition to their long-term stability, neodymium magnets provide the following advantages:

They have constant strength, and over more than ten years their attraction force decreases symbolically – ~1% (in testing),
They feature excellent resistance to magnetism drop when exposed to opposing magnetic fields,
Thanks to the shimmering finish, the surface of Ni-Cu-Ni, gold-plated, or silver-plated gives an professional appearance,
They show high magnetic induction at the operating surface, which increases their power,
Through (adequate) combination of ingredients, they can achieve high thermal strength, enabling action at temperatures reaching 230°C and above...
Possibility of accurate creating and optimizing to individual applications,
Fundamental importance in modern industrial fields – they are used in computer drives, drive modules, advanced medical instruments, as well as multitasking production systems.
Thanks to concentrated force, small magnets offer high operating force, occupying minimum space,

Disadvantages

Disadvantages of NdFeB 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 experience a drop in force. 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
Magnets exposed to a humid environment can corrode. Therefore while using outdoors, we suggest using water-impermeable magnets made of rubber, plastic or other material resistant to moisture
Due to limitations in producing threads and complicated forms in magnets, we propose using cover - magnetic mechanism.
Potential hazard to health – tiny shards of magnets are risky, when accidentally swallowed, which becomes key in the aspect of protecting the youngest. Furthermore, tiny parts of these devices can disrupt the diagnostic process medical when they are in the body.
Due to neodymium price, their price is relatively high,

Pull force analysis

Maximum lifting force for a neodymium magnet – what it depends on?

Magnet power was defined for the most favorable conditions, including:

on a block made of mild steel, perfectly concentrating the magnetic field
with a cross-section minimum 10 mm
characterized by lack of roughness
with zero gap (without paint)
for force acting at a right angle (pull-off, not shear)
at temperature approx. 20 degrees Celsius

Impact of factors on magnetic holding capacity in practice

Real force is influenced by working environment parameters, mainly (from priority):

Clearance – the presence of any layer (paint, dirt, air) interrupts the magnetic circuit, which reduces capacity rapidly (even by 50% at 0.5 mm).
Load vector – maximum parameter is available only during perpendicular pulling. The force required to slide of the magnet along the surface is standardly many times smaller (approx. 1/5 of the lifting capacity).
Wall thickness – the thinner the sheet, the weaker the hold. Magnetic flux passes through the material instead of generating force.
Material composition – different alloys reacts the same. Alloy additives worsen the attraction effect.
Surface condition – ground elements ensure maximum contact, which improves field saturation. Rough surfaces weaken the grip.
Temperature influence – high temperature weakens pulling force. Too high temperature can permanently demagnetize the magnet.

Lifting capacity was determined using a steel plate with a smooth surface of suitable thickness (min. 20 mm), under vertically applied force, whereas under parallel forces the lifting capacity is smaller. Moreover, even a small distance between the magnet’s surface and the plate decreases the lifting capacity.

Precautions when working with neodymium magnets

Danger to the youngest

These products are not suitable for play. Swallowing several magnets may result in them connecting inside the digestive tract, which constitutes a direct threat to life and requires urgent medical intervention.

Electronic devices

Avoid bringing magnets close to a wallet, computer, or screen. The magnetic field can permanently damage these devices and erase data from cards.

Physical harm

Pinching hazard: The pulling power is so immense that it can result in blood blisters, pinching, and even bone fractures. Protective gloves are recommended.

Beware of splinters

Watch out for shards. Magnets can explode upon uncontrolled impact, ejecting shards into the air. Wear goggles.

Threat to navigation

Navigation devices and smartphones are extremely sensitive to magnetism. Direct contact with a strong magnet can permanently damage the sensors in your phone.

Do not overheat magnets

Do not overheat. NdFeB magnets are sensitive to heat. If you require operation above 80°C, inquire about HT versions (H, SH, UH).

Flammability

Fire warning: Rare earth powder is explosive. Avoid machining magnets without safety gear as this may cause fire.

Allergic reactions

Allergy Notice: The nickel-copper-nickel coating consists of nickel. If redness occurs, immediately stop working with magnets and wear gloves.

Danger to pacemakers

Life threat: Strong magnets can turn off heart devices and defibrillators. Stay away if you have medical devices.

Safe operation

Before use, check safety instructions. Sudden snapping can break the magnet or hurt your hand. Think ahead.

Important! Looking for details? Check our post: Why are neodymium magnets dangerous?

MP 41x15x10 / N38 - ring magnet

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

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical analysis of the assembly - technical parameters

Table 1: Static pull force (pull vs distance) - power drop MP 41x15x10 / N38

Table 2: Vertical hold (wall) MP 41x15x10 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces MP 41x15x10 / N38

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

Table 5: Thermal stability (material behavior) - resistance threshold MP 41x15x10 / N38

Table 6: Two magnets (repulsion) - forces in the system MP 41x15x10 / N38

Table 7: Hazards (electronics) - warnings MP 41x15x10 / N38

Table 8: Collisions (kinetic energy) - warning MP 41x15x10 / N38

Table 9: Anti-corrosion coating durability MP 41x15x10 / N38

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

Table 11: Hydrostatics and buoyancy MP 41x15x10 / N38

1. Wall mount (shear)

2. Steel thickness impact

3. Power loss vs temp

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

Elemental analysis

Sustainability

Magnet pull force

Field Strength

See more offers

MW 6x6 / N38 - cylindrical magnet

HH 42x8.8 [M6] / N38 - through hole magnetic holder

MP 10x6x4 / N38 - ring magnet

MP 20x8/4x5 / N38 - ring magnet

Advantages and disadvantages of neodymium magnets.

Strengths

Disadvantages

Pull force analysis

Maximum lifting force for a neodymium magnet – what it depends on?

Impact of factors on magnetic holding capacity in practice

Precautions when working with neodymium magnets

Danger to the youngest

Electronic devices

Physical harm

Beware of splinters

Threat to navigation

Do not overheat magnets

Flammability

Allergic reactions

Danger to pacemakers

Safe operation

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (pull vs distance) - power drop
MP 41x15x10 / N38

Table 2: Vertical hold (wall)
MP 41x15x10 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MP 41x15x10 / N38

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

Table 5: Thermal stability (material behavior) - resistance threshold
MP 41x15x10 / N38

Table 6: Two magnets (repulsion) - forces in the system
MP 41x15x10 / N38

Table 7: Hazards (electronics) - warnings
MP 41x15x10 / N38

Table 8: Collisions (kinetic energy) - warning
MP 41x15x10 / N38

Table 9: Anti-corrosion coating durability
MP 41x15x10 / N38

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

Table 11: Hydrostatics and buoyancy
MP 41x15x10 / N38