Product available Ships in 2 days

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

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

ring magnet

Catalog no 030202

GTIN/EAN: 5906301812197

5.00

Diameter

5 mm [±0,1 mm]

internal diameter Ø

2.7/1.2 mm [±0,1 mm]

Height

5 mm [±0,1 mm]

Weight

0.69 g

Magnetization Direction

↑ axial

Load capacity

0.75 kg / 7.31 N

Magnetic Induction

553.14 mT / 5531 Gs

Coating

[NiCuNi] Nickel

technical parameters »

0.836 ZŁ with VAT / pcs + price for transport

0.680 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs

0.680 ZŁ

0.836 ZŁ

price from 900 pcs

0.639 ZŁ

0.786 ZŁ

price from 3700 pcs

0.598 ZŁ

0.736 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Want to talk magnets?

Call us +48 888 99 98 98 or contact us using our online form the contact form page.
Specifications and appearance of a magnet can be checked with our force calculator.

Orders placed before 14:00 will be shipped the same business day.

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

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

properties

properties	values
Cat. no.	030202
GTIN/EAN	5906301812197
Production/Distribution	Dhit sp. z o.o. ul. Zielona 14 05-850 Ożarów Mazowiecki PL
Country of origin	Poland / China / Germany
Customs code	85059029
Diameter	5 mm [±0,1 mm]
internal diameter Ø	2.7/1.2 mm [±0,1 mm]
Height	5 mm [±0,1 mm]
Weight	0.69 g
Magnetization Direction	↑ axial
Load capacity ~ ?	0.75 kg / 7.31 N
Magnetic Induction ~ ?	553.14 mT / 5531 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

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

properties	values	units
remenance Br [min. - max.] ?	12.2-12.6	kGs
remenance Br [min. - max.] ?	1220-1260	mT
coercivity bHc ?	10.8-11.5	kOe
coercivity bHc ?	860-915	kA/m
actual internal force iHc	≥ 12	kOe
actual internal force iHc	≥ 955	kA/m
energy density [min. - max.] ?	36-38	BH max MGOe
energy density [min. - max.] ?	287-303	BH max KJ/m
max. temperature ?	≤ 80	°C

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

properties	values	units
Vickers hardness	≥550	Hv
Density	≥7.4	g/cm³
Curie Temperature TC	312 - 380	°C
Curie Temperature TF	593 - 716	°F
Specific resistance	150	μΩ⋅cm
Bending strength	250	MPa
Compressive strength	1000~1100	MPa
Thermal expansion parallel (∥) to orientation (M)	(3-4) x 10^-6	°C^-1
Thermal expansion perpendicular (⊥) to orientation (M)	-(1-3) x 10^-6	°C^-1
Young's modulus	1.7 x 10⁴	kg/mm²

Technical analysis of the product - technical parameters

The following data represent the direct effect of a engineering simulation. Values are based on algorithms for the material Nd₂Fe₁₄B. Actual parameters might slightly deviate from the simulation results. Treat these calculations as a reference point when designing systems.

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

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

Pulling power drops sharply with every subsequent millimeter of distance. Remember that every additional insulation layer (e.g., contamination, varnish, veneer) noticeably weakens the grip. Neodymiums hold optimally during direct contact; distance weakens the power. Notice how flashily the pull force fall, when the product does not touch tightly to the metal substrate. When planning the arrangement, avoid additional spacers.

Table 2: Vertical hold (wall)
MP 5x2.7/1.2x5 S / N38

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

This section calculates the approximate shear load required to start the shifting of the magnet downwards along a vertical steel plate (assuming standard friction). The holding force depends on the gap size between the magnet and the surface.

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MP 5x2.7/1.2x5 S / N38

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

When hanging a magnet on a upright surface (e.g., a board), it will only hold barely about 1/5 of its maximum pull force. Gravity as well as a weak degree of grip influence the fact that magnets slip easier than they detach. Designing a vertical fastening? Consider that the sliding force is noticeably lower than the perpendicular breakaway force. On a slippery surface, the element will slide down under a significantly smaller load. Utilizing a rubberized layer can significantly raise the stability.

Table 4: Material efficiency (substrate influence) - sheet metal selection
MP 5x2.7/1.2x5 S / N38

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

A thin sheet cannot absorb the full magnetic flux, which wastes potential of the magnet. If you install a neodymium to a thin surface, the field will penetrate right through and the holding will be smaller. To utilize 100% of this magnet's power, you require a sufficiently solid element of metal. The saturation phenomenon causes that on sheet metal structures (e.g., appliance housings), the product works worse. We suggest choosing the steel cross-section from these parameters.

Table 5: Thermal stability (material behavior) - power drop
MP 5x2.7/1.2x5 S / N38

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

Classic neodymiums change their properties power above the temperature limit. Protect against heat – heat can irreversibly destroy this magnet. With every degree above norm, the magnet's force temporarily drops. Do not use this product close to heaters higher than its operating temperature limit. Too high temperature will cause permanent loss of magnetic properties.

*Important note: Thermal stability depends not only on the material grade, as well as the dimension ratios. Low-profile magnets (low permeance coefficient) risk losing magnetic properties at lower temperatures compared to rod magnets. Red status in the table points to permanent field degradation for this specific geometry.

Table 6: Magnet-Magnet interaction (attraction) - field collision
MP 5x2.7/1.2x5 S / N38

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

Two magnets attract each other from a wider radius than a neodymium and metal combination. Such a system of two magnets generates a stronger field and a wider radius of performance. Planning to create a solid fastener? Use a pair of magnets instead of one magnet and a striker plate. Remember that when connecting a pair of magnets, the pinch force is extreme. The levitation is marginally weaker than the connection force, but still large.
*The magnetic induction for N-N configuration is approximately ~0 Gs in the exact middle of the gap (resulting from vector opposition).
Note: Calculations refer to sliding force of a pair of matching neodymium magnets (friction ~0.15 for Ni-Ni layer).

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

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

Powerful magnet radiation is a real danger to electronics and pacemakers. These NdFeB products produce a field that destroys function of digital equipment. Notice: the unseen radiation passes through tissues and housings. Exceptional care must be exercised by people with cochlear implants and insulin pumps. Influence will be felt by: mechanical watches, remotes, membranes, and displays. Do not place the magnet near cards, hard drives, or sensitive navigation tools.

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

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

Magnetic elements are very brittle – a strong collision with metal causes immediate chipping. Pay attention to connection velocity – a magnet released freely becomes dangerous. Striking energy can cause material chips or dangerous crushing to fingers. Always hold the magnet during bringing near metal so it doesn't hit with great force against the metal. A contact at a velocity of dozens of km/h almost guarantees destruction of the magnet. Use safety goggles when working with powerful specimens.

Table 9: Coating parameters (durability)
MP 5x2.7/1.2x5 S / N38

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

The following table defines the conditions under which this product can be safely used. Note the thickness of the protective layer.

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

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

Flux value passing through the pole surface. Essential parameter in coil applications and motors. The P_c coefficient determines the working geometry.

Table 11: Submerged application
MP 5x2.7/1.2x5 S / N38

Environment	Effective steel pull	Effect
Air (land)	0.75 kg	Standard
Water (riverbed)	0.86 kg (+0.11 kg buoyancy gain)	+14.5%

Rust risk: 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. Shear force

*Note: On a vertical wall, the magnet retains just approx. 20-30% of its max power.

2. Plate thickness effect

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

3. Thermal stability

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

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.83

This simulation demonstrates the magnetic stability of the selected magnet under specific geometric conditions. The solid red line represents the demagnetization curve (material potential), while the dashed blue line is the load line based on the magnet's geometry. The P_c (Permeance Coefficient), also known as the load line slope, is a dimensionless value that describes the relationship between the magnet's shape and its magnetic stability. The intersection of these two lines (the black dot) is the operating point — it determines the actual magnetic flux density generated by the magnet in this specific configuration. A higher P_c value means the magnet is more 'slender' (tall relative to its area), resulting in a higher operating point and better resistance to irreversible demagnetization caused by external fields or temperature. A value of 0.42 is relatively low (typical for flat magnets), meaning the operating point is closer to the 'knee' of the curve — caution is advised when operating at temperatures near the maximum limit to avoid strength loss.

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%

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: 030202-2026

Magnet Unit Converter

Force (pull)

Force in kg

Force in lbs

Magnetic Induction

Induction (Gs)

Induction (T)

Enter data in one of the inputs, to see the rest convert on the fly.

View more offers

Product available Ships in 2 days

UMP 94x40 [3xM10] GW F550 Silver Black / N52 - search holder

350.00 ZŁ brutto / pcs

Product available Ships in 2 days

MW 14x3 / N38 - cylindrical magnet

1.845 ZŁ brutto / pcs

Product available Ships in 2 days

UMGGW 43x6 [M4] GW / N38 - magnetic holder rubber internal thread

10.46 ZŁ brutto / pcs

Product available Ships in 2 days

SM 25x150 [2xM8] / N42 - magnetic separator

393.60 ZŁ brutto / pcs

The ring magnet with a hole MP 5x2.7/1.2x5 S / N38 is created for permanent mounting, where glue might fail or be insufficient. 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 0.75 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. 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. It's a good idea to use a rubber spacer under the screw head, which will cushion the stresses. 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 indoor use. For outdoor applications, we recommend choosing magnets in hermetic housing or additional protection with varnish.

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

The presented product is a ring magnet with dimensions Ø5 mm (outer diameter) and height 5 mm. The pulling force of this model is an impressive 0.75 kg, which translates to 7.31 N in newtons. The mounting hole diameter is precisely 2.7/1.2 mm.

These magnets are magnetized axially (through the thickness), which means one flat side is the N pole and the other is S. In the case of connecting two rings, make sure one is turned the right way. We do not offer paired sets with marked poles in this category, but they are easy to match manually.

Pros and cons of neodymium magnets.

Strengths

Besides their durability, neodymium magnets are valued for these benefits:

They virtually do not lose strength, because even after ten years the decline in efficiency is only ~1% (based on calculations),
They have excellent resistance to magnetic field loss when exposed to external fields,
The use of an elegant finish of noble metals (nickel, gold, silver) causes the element to present itself better,
Magnetic induction on the working layer of the magnet remains very high,
Thanks to resistance to high temperature, they can operate (depending on the form) even at temperatures up to 230°C and higher...
Thanks to freedom in designing and the capacity to adapt to individual projects,
Universal use in future technologies – they find application in mass storage devices, motor assemblies, medical equipment, as well as complex engineering applications.
Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Cons

Problematic aspects of neodymium magnets and ways of using them

To avoid cracks upon strong impacts, we recommend using special steel housings. Such a solution protects the magnet and simultaneously increases its durability.
Neodymium magnets lose their force under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as those in rubber or plastics, which prevent oxidation and corrosion.
We suggest a housing - magnetic mount, due to difficulties in creating nuts inside the magnet and complicated shapes.
Possible danger resulting from small fragments of magnets pose a threat, in case of ingestion, which is particularly important in the context of child health protection. Furthermore, small elements of these devices can disrupt the diagnostic process medical when they are in the body.
With budget limitations the cost of neodymium magnets can be a barrier,

Holding force characteristics

Highest magnetic holding force – what it depends on?

The specified lifting capacity concerns the maximum value, recorded under ideal test conditions, namely:

on a plate made of mild steel, perfectly concentrating the magnetic field
possessing a thickness of minimum 10 mm to ensure full flux closure
with an ideally smooth touching surface
without the slightest air gap between the magnet and steel
under vertical application of breakaway force (90-degree angle)
in neutral thermal conditions

What influences lifting capacity in practice

Please note that the working load may be lower subject to elements below, starting with the most relevant:

Distance – the presence of foreign body (paint, dirt, air) acts as an insulator, which reduces power rapidly (even by 50% at 0.5 mm).
Force direction – remember that the magnet holds strongest perpendicularly. Under shear forces, the capacity drops significantly, often to levels of 20-30% of the nominal value.
Metal thickness – thin material does not allow full use of the magnet. Magnetic flux penetrates through instead of converting into lifting capacity.
Metal type – not every steel attracts identically. Alloy additives worsen the attraction effect.
Surface condition – ground elements guarantee perfect abutment, which increases field saturation. Uneven metal reduce efficiency.
Operating temperature – neodymium magnets have a negative temperature coefficient. When it is hot they are weaker, and at low temperatures they can be stronger (up to a certain limit).

Lifting capacity was determined using a steel plate with a smooth surface of optimal thickness (min. 20 mm), under perpendicular pulling force, in contrast under attempts to slide the magnet the lifting capacity is smaller. Additionally, even a small distance between the magnet’s surface and the plate decreases the load capacity.

Safe handling of neodymium magnets

Do not drill into magnets

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

Bodily injuries

Risk of injury: The pulling power is so immense that it can result in blood blisters, crushing, and broken bones. Use thick gloves.

Power loss in heat

Standard neodymium magnets (grade N) lose power when the temperature goes above 80°C. The loss of strength is permanent.

Threat to navigation

An intense magnetic field disrupts the operation of compasses in smartphones and GPS navigation. Maintain magnets near a smartphone to prevent damaging the sensors.

This is not a toy

Neodymium magnets are not toys. Eating multiple magnets may result in them attracting across intestines, which poses a direct threat to life and requires urgent medical intervention.

Powerful field

Before starting, check safety instructions. Uncontrolled attraction can break the magnet or injure your hand. Think ahead.

Shattering risk

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

Pacemakers

Medical warning: Strong magnets can turn off heart devices and defibrillators. Do not approach if you have electronic implants.

Magnetic media

Do not bring magnets near a purse, computer, or TV. The magnetic field can destroy these devices and wipe information from cards.

Metal Allergy

Studies show that nickel (standard magnet coating) is a common allergen. If you have an allergy, avoid touching magnets with bare hands or opt for encased magnets.

Important! Want to know more? Read our article: Are neodymium magnets dangerous?

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

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

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical analysis of the product - technical parameters

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

Table 2: Vertical hold (wall) MP 5x2.7/1.2x5 S / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces MP 5x2.7/1.2x5 S / N38

Table 4: Material efficiency (substrate influence) - sheet metal selection MP 5x2.7/1.2x5 S / N38

Table 5: Thermal stability (material behavior) - power drop MP 5x2.7/1.2x5 S / N38

Table 6: Magnet-Magnet interaction (attraction) - field collision MP 5x2.7/1.2x5 S / N38

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

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

Table 9: Coating parameters (durability) MP 5x2.7/1.2x5 S / N38

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

Table 11: Submerged application MP 5x2.7/1.2x5 S / N38

1. Shear force

2. Plate thickness effect

3. Thermal stability

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

Chemical composition

Environmental data

Force (pull)

Magnetic Induction

View more offers

UMP 94x40 [3xM10] GW F550 Silver Black / N52 - search holder

MW 14x3 / N38 - cylindrical magnet

UMGGW 43x6 [M4] GW / N38 - magnetic holder rubber internal thread

SM 25x150 [2xM8] / N42 - magnetic separator

Pros and cons of neodymium magnets.

Strengths

Cons

Holding force characteristics

Highest magnetic holding force – what it depends on?

What influences lifting capacity in practice

Safe handling of neodymium magnets

Do not drill into magnets

Bodily injuries

Power loss in heat

Threat to navigation

This is not a toy

Powerful field

Shattering risk

Pacemakers

Magnetic media

Metal Allergy

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

Table 2: Vertical hold (wall)
MP 5x2.7/1.2x5 S / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MP 5x2.7/1.2x5 S / N38

Table 4: Material efficiency (substrate influence) - sheet metal selection
MP 5x2.7/1.2x5 S / N38

Table 5: Thermal stability (material behavior) - power drop
MP 5x2.7/1.2x5 S / N38

Table 6: Magnet-Magnet interaction (attraction) - field collision
MP 5x2.7/1.2x5 S / N38

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

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

Table 9: Coating parameters (durability)
MP 5x2.7/1.2x5 S / N38

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

Table 11: Submerged application
MP 5x2.7/1.2x5 S / N38