Product on order Ships in 3-5 days

MP 12x5x2 / 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 030498

Diameter

12 mm [±0,1 mm]

internal diameter Ø

5 mm [±0,1 mm]

Height

2 mm [±0,1 mm]

Weight

1.4 g

Magnetization Direction

↑ axial

Load capacity

1.15 kg / 11.29 N

Magnetic Induction

195.97 mT / 1960 Gs

Coating

[NiCuNi] Nickel

check specifications »

1.230 ZŁ with VAT / pcs + price for transport

1.000 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs

1.000 ZŁ

1.230 ZŁ

price from 600 pcs

0.940 ZŁ

1.156 ZŁ

price from 2500 pcs

0.880 ZŁ

1.082 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Looking for a better price?

Call us now +48 888 99 98 98 alternatively get in touch by means of request form the contact section.
Parameters along with form of a magnet can be verified using our power calculator.

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

Technical data of the product - MP 12x5x2 / N38 - ring magnet

Specification / characteristics - MP 12x5x2 / N38 - ring magnet

properties

properties	values
Cat. no.	030498
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	12 mm [±0,1 mm]
internal diameter Ø	5 mm [±0,1 mm]
Height	2 mm [±0,1 mm]
Weight	1.4 g
Magnetization Direction	↑ axial
Load capacity ~ ?	1.15 kg / 11.29 N
Magnetic Induction ~ ?	195.97 mT / 1960 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MP 12x5x2 / 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

Technical modeling of the product - technical parameters

Presented values constitute the result of a engineering analysis. Values were calculated on models for the material Nd₂Fe₁₄B. Real-world parameters might slightly deviate from the simulation results. Treat these data as a supplementary guide when designing systems.

Table 1: Static force (force vs gap) - interaction chart
MP 12x5x2 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	6085 Gs 608.5 mT	1.15 kg / 2.54 lbs 1150.0 g / 11.3 N	safe
1 mm	5082 Gs 508.2 mT	0.80 kg / 1.77 lbs 802.2 g / 7.9 N	safe
2 mm	4147 Gs 414.7 mT	0.53 kg / 1.18 lbs 534.0 g / 5.2 N	safe
3 mm	3340 Gs 334.0 mT	0.35 kg / 0.76 lbs 346.3 g / 3.4 N	safe
5 mm	2152 Gs 215.2 mT	0.14 kg / 0.32 lbs 143.8 g / 1.4 N	safe
10 mm	822 Gs 82.2 mT	0.02 kg / 0.05 lbs 21.0 g / 0.2 N	safe
15 mm	394 Gs 39.4 mT	0.00 kg / 0.01 lbs 4.8 g / 0.0 N	safe
20 mm	221 Gs 22.1 mT	0.00 kg / 0.00 lbs 1.5 g / 0.0 N	safe
30 mm	92 Gs 9.2 mT	0.00 kg / 0.00 lbs 0.3 g / 0.0 N	safe
50 mm	28 Gs 2.8 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	safe

Grip strength weakens drastically per each millimeter of gap. Remember that every additional insulation layer (e.g., contamination, paint, rust) significantly reduces the pull force. Neodymiums hold strongest during direct contact; gap drastically cuts the power. Analyze how rapidly the load capacity drop, when the magnet does not adhere directly to the steel surface. When designing the arrangement, discard unnecessary gaps.

Table 2: Slippage capacity (wall)
MP 12x5x2 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.23 kg / 0.51 lbs 230.0 g / 2.3 N
1 mm	Stal (~0.2)	0.16 kg / 0.35 lbs 160.0 g / 1.6 N
2 mm	Stal (~0.2)	0.11 kg / 0.23 lbs 106.0 g / 1.0 N
3 mm	Stal (~0.2)	0.07 kg / 0.15 lbs 70.0 g / 0.7 N
5 mm	Stal (~0.2)	0.03 kg / 0.06 lbs 28.0 g / 0.3 N
10 mm	Stal (~0.2)	0.00 kg / 0.01 lbs 4.0 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

This section indicates the estimated shear load sufficient to initiate the downward movement of the magnet downwards along a upright steel plate (considering typical friction coefficient). This parameter varies with the distance between the magnet and the surface.

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MP 12x5x2 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.35 kg / 0.76 lbs 345.0 g / 3.4 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.23 kg / 0.51 lbs 230.0 g / 2.3 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.11 kg / 0.25 lbs 115.0 g / 1.1 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.58 kg / 1.27 lbs 575.0 g / 5.6 N

When placing a holder on a vertical wall (e.g., a car body), it you can count on only approx. 20%-30% of its maximum pull force. Gravity and a weak degree of grip cause that holders move down easier than they pop off the substrate. Want to create a vertical fastening? Remember that the shear force is noticeably lower than the perpendicular breakaway force. On a slippery surface, the holder will slip down under a noticeably lighter weight. Using a rubber pad can drastically increase the grip.

Table 4: Steel thickness (saturation) - sheet metal selection
MP 12x5x2 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.11 kg / 0.25 lbs 115.0 g / 1.1 N
1 mm	25%	0.29 kg / 0.63 lbs 287.5 g / 2.8 N
2 mm	50%	0.58 kg / 1.27 lbs 575.0 g / 5.6 N
3 mm	75%	0.86 kg / 1.90 lbs 862.5 g / 8.5 N
5 mm	100%	1.15 kg / 2.54 lbs 1150.0 g / 11.3 N
10 mm	100%	1.15 kg / 2.54 lbs 1150.0 g / 11.3 N
11 mm	100%	1.15 kg / 2.54 lbs 1150.0 g / 11.3 N
12 mm	100%	1.15 kg / 2.54 lbs 1150.0 g / 11.3 N

A thin sheet is not enough to conduct 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 holding will be smaller. To utilize full efficiency of this magnet's power, you require a sufficiently solid backing of metal. The saturation phenomenon means that on thin elements (e.g., car bodies), the product works worse. We recommend selecting the steel thickness based on the following data.

Table 5: Thermal resistance (material behavior) - thermal limit
MP 12x5x2 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	1.15 kg / 2.54 lbs 1150.0 g / 11.3 N	OK
40 °C	-2.2%	1.12 kg / 2.48 lbs 1124.7 g / 11.0 N	OK
60 °C	-4.4%	1.10 kg / 2.42 lbs 1099.4 g / 10.8 N	OK
80 °C	-6.6%	1.07 kg / 2.37 lbs 1074.1 g / 10.5 N
100 °C	-28.8%	0.82 kg / 1.81 lbs 818.8 g / 8.0 N

Standard neodymium magnets irreversibly lose strength after exceeding the maximum temperature. Protect against heat – high temperature can irreversibly damage this product. With every degree above norm, the magnet's capacity temporarily lowers. Refrain from using this magnet close to ovens exceeding its safe range. Exceeding the critical threshold will cause destruction of magnetic properties.

*Engineering note: Heat tolerance is determined by both grade, and the Permeance Coefficient Pc. Flat magnets (low permeance coefficient) may lose charge permanently at lower temperatures than taller cylinders. Warning indicator in the table points to a risk of irreversible loss for this particular item.

Table 6: Magnet-Magnet interaction (attraction) - field collision
MP 12x5x2 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	21.34 kg / 47.04 lbs 6 163 Gs	3.20 kg / 7.06 lbs 3201 g / 31.4 N	N/A
1 mm	17.97 kg / 39.61 lbs 11 168 Gs	2.69 kg / 5.94 lbs 2695 g / 26.4 N	16.17 kg / 35.65 lbs ~0 Gs
2 mm	14.88 kg / 32.81 lbs 10 165 Gs	2.23 kg / 4.92 lbs 2233 g / 21.9 N	13.40 kg / 29.53 lbs ~0 Gs
3 mm	12.20 kg / 26.89 lbs 9 202 Gs	1.83 kg / 4.03 lbs 1830 g / 17.9 N	10.98 kg / 24.20 lbs ~0 Gs
5 mm	8.00 kg / 17.63 lbs 7 450 Gs	1.20 kg / 2.64 lbs 1199 g / 11.8 N	7.20 kg / 15.87 lbs ~0 Gs
10 mm	2.67 kg / 5.88 lbs 4 304 Gs	0.40 kg / 0.88 lbs 400 g / 3.9 N	2.40 kg / 5.30 lbs ~0 Gs
20 mm	0.39 kg / 0.86 lbs 1 644 Gs	0.06 kg / 0.13 lbs 58 g / 0.6 N	0.35 kg / 0.77 lbs ~0 Gs
50 mm	0.01 kg / 0.02 lbs 275 Gs	0.00 kg / 0.00 lbs 2 g / 0.0 N	0.01 kg / 0.02 lbs ~0 Gs
60 mm	0.00 kg / 0.01 lbs 184 Gs	0.00 kg / 0.00 lbs 1 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
70 mm	0.00 kg / 0.01 lbs 129 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 95 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 72 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 56 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs

Two magnetic products attract each other from a significantly greater distance than a magnet and sheet combination. Such a system of two magnets produces a massive flux and a further horizon of performance. Designing a solid fastener? Apply two magnets instead of one magnet and a steel. Exercise caution that when attracting two neodymiums, the pinch force is massive. The levitation is marginally weaker than the connection force, but still large.
*Flux density for N-N configuration reaches ~0 Gs at the geometric center between the magnets (resulting from vector opposition).
Note: Estimates show friction force of a pair of matching magnets (friction ~0.15 for Ni-Ni layer).

Table 7: Protective zones (electronics) - precautionary measures
MP 12x5x2 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	10.0 cm
Hearing aid	10 Gs (1.0 mT)	8.0 cm
Mechanical watch	20 Gs (2.0 mT)	6.0 cm
Phone / Smartphone	40 Gs (4.0 mT)	4.5 cm
Car key	50 Gs (5.0 mT)	4.0 cm
Payment card	400 Gs (40.0 mT)	1.5 cm
HDD hard drive	600 Gs (60.0 mT)	1.5 cm

Powerful magnet radiation poses a real danger to electronics as well as pacemakers. These magnets produce a field that prevents correct functioning of digital equipment. Remember: the invisible magnetic field passes through tissues and glass. Exceptional care must be taken by people with cochlear implants and insulin pumps. Also at risk are: mechanical watches, car keys, membranes, and screens. Do not bring the product near payment cards, HDD media, or sensitive navigation tools.

Table 8: Dynamics (kinetic energy) - warning
MP 12x5x2 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	29.23 km/h (8.12 m/s)	0.05 J
30 mm	50.07 km/h (13.91 m/s)	0.14 J
50 mm	64.63 km/h (17.95 m/s)	0.23 J
100 mm	91.40 km/h (25.39 m/s)	0.45 J

Neodymium magnets are prone to chipping – a strong collision with metal can result in shattering. Pay attention to connection velocity – a neodymium left loose speeds with massive force. Striking energy can trigger coating fragments or dangerous crushing to fingers. Hold the magnet firmly during bringing near metal so it doesn't hit violently against the steel surface. A collision at high speed ends with a crack of the neodymium. Wear eye protection when handling with powerful specimens.

Table 9: Surface protection spec
MP 12x5x2 / 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. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Electrical data (P_c)
MP 12x5x2 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	6 503 Mx	65.0 µWb
P_c Coefficient	1.34	High (Stable)

Flux value passing through the pole surface. Key data for generator designers and motors. The P_c coefficient defines the magnet's operating point.

Table 11: Hydrostatics and buoyancy
MP 12x5x2 / N38

Environment	Effective steel pull	Effect
Air (land)	1.15 kg	Standard
Water (riverbed)	1.32 kg (+0.17 kg buoyancy gain)	+14.5%

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

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

1. Vertical hold

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

2. Efficiency vs thickness

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

3. Heat tolerance

*For N38 material, the critical limit is 80°C.

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 1.34

The chart above illustrates the magnetic characteristics of the material within the second quadrant of the hysteresis loop. 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

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%

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: 030498-2026

Measurement Calculator

Magnet pull force

Kilograms (kg)

Force (N)

Force in lbs

Field Strength

Gauss (Gs)

Tesla (T)

Enter a number in one of the inputs, and the remaining units change instantly.

View more proposals

Product on order Ships in 3-5 days

UMGZ 48x24x11.5 [M8] GZ / N38 - magnetic holder external thread

59.90 ZŁ brutto / pcs

Product on order Ships in 3-5 days

MT 50x1.5x100000 - magnetic tape

861.00 ZŁ brutto / pcs

Product on order Ships in 3-5 days

SM 32x500 [2xM8] / N52 - magnetic separator

1562.10 ZŁ brutto / pcs

Product on order Ships in 3-5 days

MW 70x20 / N38 - cylindrical magnet

239.85 ZŁ brutto / pcs

The ring-shaped magnet MP 12x5x2 / N38 is created for mechanical fastening, where glue might fail or be insufficient. 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 is a crucial issue when working with model MP 12x5x2 / N38. Neodymium magnets are sintered ceramics, which means they are very brittle and inelastic. One turn too many can destroy the magnet, so do it slowly. The flat screw head should evenly press the magnet. Remember: cracking during assembly results from material properties, not a product defect.

Moisture can penetrate micro-cracks in the coating and cause oxidation of the magnet. In the place of the mounting hole, the coating is thinner and can be damaged when tightening the screw, which will become a corrosion focus. If you must use it outside, paint it with anti-corrosion paint after mounting.

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. Aesthetic mounting requires selecting the appropriate head size.

It is a magnetic ring with a diameter of 12 mm and thickness 2 mm. The pulling force of this model is an impressive 1.15 kg, which translates to 11.29 N in newtons. The mounting hole diameter is precisely 5 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.

Advantages

Besides their immense field intensity, neodymium magnets offer the following advantages:

They have unchanged lifting capacity, and over around 10 years their performance decreases symbolically – ~1% (according to theory),
They possess excellent resistance to magnetism drop due to external magnetic sources,
The use of an metallic finish of noble metals (nickel, gold, silver) causes the element to have aesthetics,
The surface of neodymium magnets generates a intense magnetic field – this is one of their assets,
Thanks to resistance to high temperature, they can operate (depending on the shape) even at temperatures up to 230°C and higher...
Possibility of detailed creating and modifying to atypical applications,
Huge importance in electronics industry – they serve a role in magnetic memories, brushless drives, medical equipment, also other advanced devices.
Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Disadvantages

Disadvantages of neodymium magnets:

They are fragile upon too strong impacts. To avoid cracks, it is worth protecting magnets in a protective case. Such protection not only shields the magnet but also improves its resistance to damage
NdFeB magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of power (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 very 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, in case of application outdoors
We suggest a housing - magnetic mechanism, due to difficulties in realizing threads inside the magnet and complicated shapes.
Possible danger related to microscopic parts of magnets are risky, when accidentally swallowed, which is particularly important in the context of child safety. Additionally, tiny parts of these magnets are able to disrupt the diagnostic process medical when they are in the body.
Due to neodymium price, their price exceeds standard values,

Lifting parameters

Breakaway strength of the magnet in ideal conditions – what contributes to it?

The specified lifting capacity refers to the limit force, obtained under optimal environment, namely:

with the use of a yoke made of special test steel, guaranteeing full magnetic saturation
whose thickness is min. 10 mm
with a plane cleaned and smooth
under conditions of gap-free contact (surface-to-surface)
under vertical application of breakaway force (90-degree angle)
at temperature approx. 20 degrees Celsius

Determinants of lifting force in real conditions

Holding efficiency impacted by specific conditions, mainly (from priority):

Clearance – the presence of foreign body (paint, tape, gap) interrupts the magnetic circuit, which reduces capacity steeply (even by 50% at 0.5 mm).
Force direction – declared lifting capacity refers to pulling vertically. When attempting to slide, the magnet holds much less (often approx. 20-30% of nominal force).
Substrate thickness – for full efficiency, the steel must be adequately massive. Thin sheet limits the lifting capacity (the magnet "punches through" it).
Material composition – different alloys attracts identically. Alloy additives worsen the attraction effect.
Surface condition – ground elements ensure maximum contact, which improves field saturation. Uneven metal reduce efficiency.
Operating temperature – NdFeB sinters have a sensitivity to temperature. At higher temperatures they are weaker, and at low temperatures gain strength (up to a certain limit).

Lifting capacity was measured using a smooth steel plate of suitable thickness (min. 20 mm), under perpendicular pulling force, in contrast under attempts to slide the magnet the load capacity is reduced by as much as 75%. In addition, even a small distance between the magnet and the plate lowers the load capacity.

H&S for magnets

Material brittleness

Watch out for shards. Magnets can fracture upon uncontrolled impact, ejecting shards into the air. We recommend safety glasses.

Operating temperature

Avoid heat. Neodymium magnets are sensitive to temperature. If you need operation above 80°C, inquire about special high-temperature series (H, SH, UH).

Flammability

Powder generated during machining of magnets is flammable. Avoid drilling into magnets unless you are an expert.

Health Danger

Health Alert: Strong magnets can deactivate heart devices and defibrillators. Stay away if you have electronic implants.

Nickel allergy

Nickel alert: The Ni-Cu-Ni coating consists of nickel. If redness occurs, cease working with magnets and wear gloves.

Precision electronics

Navigation devices and mobile phones are highly susceptible to magnetic fields. Direct contact with a strong magnet can ruin the internal compass in your phone.

Powerful field

Handle magnets consciously. Their huge power can shock even experienced users. Be vigilant and respect their force.

Magnetic media

Equipment safety: Strong magnets can damage data carriers and delicate electronics (pacemakers, hearing aids, timepieces).

Hand protection

Danger of trauma: The pulling power is so great that it can cause hematomas, pinching, and even bone fractures. Protective gloves are recommended.

Swallowing risk

Adult use only. Small elements pose a choking risk, leading to serious injuries. Keep away from kids and pets.

Caution! Want to know more? Check our post: Why are neodymium magnets dangerous?

MP 12x5x2 / N38 - ring magnet

Technical data of the product - MP 12x5x2 / N38 - ring magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical modeling of the product - technical parameters

Table 1: Static force (force vs gap) - interaction chart MP 12x5x2 / N38

Table 2: Slippage capacity (wall) MP 12x5x2 / N38

Table 3: Wall mounting (sliding) - behavior on slippery surfaces MP 12x5x2 / N38

Table 4: Steel thickness (saturation) - sheet metal selection MP 12x5x2 / N38

Table 5: Thermal resistance (material behavior) - thermal limit MP 12x5x2 / N38

Table 6: Magnet-Magnet interaction (attraction) - field collision MP 12x5x2 / N38

Table 7: Protective zones (electronics) - precautionary measures MP 12x5x2 / N38

Table 8: Dynamics (kinetic energy) - warning MP 12x5x2 / N38

Table 9: Surface protection spec MP 12x5x2 / N38

Table 10: Electrical data (Pc) MP 12x5x2 / N38

Table 11: Hydrostatics and buoyancy MP 12x5x2 / N38

1. Vertical hold

2. Efficiency vs thickness

3. Heat tolerance

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

Elemental analysis

Environmental data

Magnet pull force

Field Strength

View more proposals

UMGZ 48x24x11.5 [M8] GZ / N38 - magnetic holder external thread

MT 50x1.5x100000 - magnetic tape

SM 32x500 [2xM8] / N52 - magnetic separator

MW 70x20 / N38 - cylindrical magnet

Advantages and disadvantages of neodymium magnets.

Advantages

Disadvantages

Lifting parameters

Breakaway strength of the magnet in ideal conditions – what contributes to it?

Determinants of lifting force in real conditions

H&S for magnets

Material brittleness

Operating temperature

Flammability

Health Danger

Nickel allergy

Precision electronics

Powerful field

Magnetic media

Hand protection

Swallowing risk

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs gap) - interaction chart
MP 12x5x2 / N38

Table 2: Slippage capacity (wall)
MP 12x5x2 / N38

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MP 12x5x2 / N38

Table 4: Steel thickness (saturation) - sheet metal selection
MP 12x5x2 / N38

Table 5: Thermal resistance (material behavior) - thermal limit
MP 12x5x2 / N38

Table 6: Magnet-Magnet interaction (attraction) - field collision
MP 12x5x2 / N38

Table 7: Protective zones (electronics) - precautionary measures
MP 12x5x2 / N38

Table 8: Dynamics (kinetic energy) - warning
MP 12x5x2 / N38

Table 9: Surface protection spec
MP 12x5x2 / N38

Table 10: Electrical data (P_c)
MP 12x5x2 / N38

Table 11: Hydrostatics and buoyancy
MP 12x5x2 / N38