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MP 5x2.7/1.2x5 C / 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

ring magnet

Catalog no 030201

GTIN/EAN: 5906301812180

5.00

Load capacity 0.75 kg / 7.31 N Magnetic Induction 553.14 mT / 5531 Gs

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
Coating: [NiCuNi] Nickel

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0.680 zł net + 23% VAT / pcs

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Carbon Footprint – environmental impact GPSR Regulation – product safety

Engineering report for this magnet

Full PDF analysis: pull and shear force, effect of distance, temperature and plate thickness, safety distances and the demagnetization curve.

PDF report Calculator

Do you have doubts?

Call us +48 888 99 98 98 if you prefer send us a note by means of form through our site.
Parameters as well as form of neodymium magnets can be tested on our magnetic calculator.

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

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

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

properties

properties	values
Cat. no.	030201
GTIN/EAN	5906301812180
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 C / 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 magnet - technical parameters

Presented information represent the result of a mathematical calculation. Values rely on algorithms for the class Nd₂Fe₁₄B. Operational conditions might slightly deviate from the simulation results. Please consider these calculations as a preliminary roadmap during assembly planning.

Table 1: Static pull force (force vs distance) - characteristics
MP 5x2.7/1.2x5 C / 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 pounds 750.0 g / 7.4 N	safe
1 mm	3295 Gs 329.5 mT	0.29 kg / 0.63 pounds 287.5 g / 2.8 N	safe
2 mm	1883 Gs 188.3 mT	0.09 kg / 0.21 pounds 93.9 g / 0.9 N	safe
3 mm	1098 Gs 109.8 mT	0.03 kg / 0.07 pounds 31.9 g / 0.3 N	safe
5 mm	440 Gs 44.0 mT	0.01 kg / 0.01 pounds 5.1 g / 0.1 N	safe
10 mm	92 Gs 9.2 mT	0.00 kg / 0.00 pounds 0.2 g / 0.0 N	safe
15 mm	33 Gs 3.3 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	safe
20 mm	15 Gs 1.5 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	safe
30 mm	5 Gs 0.5 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	safe
50 mm	1 Gs 0.1 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	safe

Magnetic force decreases significantly with every subsequent millimeter of distance. Remember that even the smallest gap (e.g., dirt, varnish, rust) significantly reduces the pull force. Magnets hold optimally in perfect adhesion; air break weakens the power. Observe how quickly the parameters drop, when the product does not adhere tightly to the steel surface. When designing the mounting, discard unnecessary gaps.

Table 2: Sliding force (wall)
MP 5x2.7/1.2x5 C / N38

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

This section indicates the theoretical force required to cause the slippage of the magnet down on a upright steel wall (considering standard friction coefficient). This value is relative to the gap size between the magnet and the surface.

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MP 5x2.7/1.2x5 C / 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 pounds 225.0 g / 2.2 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.15 kg / 0.33 pounds 150.0 g / 1.5 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.08 kg / 0.17 pounds 75.0 g / 0.7 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.38 kg / 0.83 pounds 375.0 g / 3.7 N

When mounting a holder on a upright plane (e.g., a board), it you can count on only about 1/5 of its maximum pull force. Gravity as well as a low friction coefficient mean that holders slide down easier than they detach. Designing a vertical fastening? Note that the shear force is significantly lower than the perpendicular breakaway force. On a smooth steel, the element will slip down under a noticeably lighter weight. Utilizing a rubberized pad can drastically increase the grip.

Table 4: Steel thickness (substrate influence) - sheet metal selection
MP 5x2.7/1.2x5 C / N38

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

A too thin steel is incapable of conduct the entire magnetic field, which squanders power of the holder. If you mount a strong magnet to a weak sheet, the field will penetrate right through and the holding will be smaller. To utilize full efficiency of this neodymium's power, you need a suitably thick element of steel. The material oversaturation means that on thin elements (e.g., car bodies), the holder works worse. We suggest choosing the steel thickness according to the table below.

Table 5: Thermal resistance (stability) - power drop
MP 5x2.7/1.2x5 C / N38

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

Classic neodymiums change their properties strength above the temperature limit. Watch out for overheating – heat can permanently destroy this product. With every degree above norm, the magnet's capacity briefly decreases. Refrain from using this product close to ovens higher than its operating temperature limit. Exceeding the critical threshold will result in permanent loss of magnetism.

*Technical advisory: Heat tolerance is determined by both grade, but also on the magnet's shape. Flat magnets (low permeance coefficient) risk losing magnetic properties sooner than long magnets. Warning indicator in the table points to permanent field degradation for this particular item.

Table 6: Two magnets (repulsion) - forces in the system
MP 5x2.7/1.2x5 C / N38

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

Two strong neodymiums attract each other from a much further distance than a magnet and steel setup. The connection of magnet-to-magnet produces a massive flux and a wider radius of operation. Planning to create a solid fastener? Apply two magnets instead of a neodymium and a steel. Exercise caution that when bringing together two magnets, the impact force is huge. The levitation is a bit weaker than the connection force, but still significant.
*The magnetic induction for N-N configuration reaches ~0 Gs at the geometric center between the magnets (due to field cancellation).
Important: Calculations apply to friction force of two identical magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Safety (HSE) (implants) - precautionary measures
MP 5x2.7/1.2x5 C / 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
Phone / Smartphone	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 large risk to electronics and medical implants. These magnets generate a field that destroys function of sensitive medical devices. Notice: the unseen radiation penetrates the body and plastic. Increased vigilance must be taken by people with cochlear implants and insulin pumps. The risk also applies to: automatic timepieces, remotes, speakers, and displays. Avoid contact with magnetic cards, hard drives, or sensitive navigation tools.

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

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	16.76 km/h (4.65 m/s)	0.01 J
30 mm	16.76 km/h (4.66 m/s)	0.01 J
50 mm	16.76 km/h (4.66 m/s)	0.01 J
100 mm	16.76 km/h (4.66 m/s)	0.01 J

NdFeB products are prone to chipping – a collision with steel risks their cracking. Watch the impact speed – a magnet released freely turns into a projectile. Striking energy can cause material chips or painful pinches to skin. Hold the magnet firmly during bringing near metal so it doesn't hit with great force against the metal. A collision at high speed means shattering of the magnet. Wear eye protection when working with powerful specimens.

Table 9: Anti-corrosion coating durability
MP 5x2.7/1.2x5 C / 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)

For outdoor applications, an epoxy coating is required; standard nickel is intended for indoor use. Note the thickness of the protective layer.

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

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

Total magnetic flux emitted by the pole surface. Essential parameter in coil applications as well as sensors. P_c value determines the working geometry.

Table 11: Submerged application
MP 5x2.7/1.2x5 C / 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: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!

Water displaces steel, making heavy objects slightly lighter. However, remember the water resistance when pulling the rope quickly.

1. Shear force

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

2. Plate thickness effect

*Thin steel (e.g. 0.5mm PC case) drastically limits the holding force.

3. Power loss vs temp

*For standard magnets, the max working temp 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

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: 030201-2026

Measurement Calculator

Magnet pull force

Kilograms (kg)

Newtons (N)

lbs

Field Strength

Induction (Gs)

Induction (T)

Input data in one of the inputs, and all other values convert automatically.

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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. 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. One turn too many can destroy the magnet, so do it slowly. It's a good idea to use a flexible washer 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. In the place of the mounting hole, the coating is thinner and easily scratched when tightening the screw, which will become a corrosion focus. This product is dedicated for indoor use. For outdoor applications, we recommend choosing rubberized holders or additional protection with varnish.

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

This model is characterized by dimensions Ø5x5 mm and a weight of 0.69 g. The key parameter here is the holding force amounting to approximately 0.75 kg (force ~7.31 N). The product has a [NiCuNi] coating and is made of NdFeB material. Inner hole dimension: 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. When ordering a larger quantity, magnets are usually packed in stacks, where they are already naturally paired.

Advantages and disadvantages of neodymium magnets.

Pros

Besides their magnetic performance, neodymium magnets are valued for these benefits:

They have constant strength, and over around 10 years their performance decreases symbolically – ~1% (in testing),
Magnets perfectly defend themselves against demagnetization caused by ambient magnetic noise,
Thanks to the shimmering finish, the layer of nickel, gold-plated, or silver gives an elegant appearance,
The surface of neodymium magnets generates a unique magnetic field – this is one of their assets,
Through (appropriate) combination of ingredients, they can achieve high thermal strength, enabling functioning at temperatures reaching 230°C and above...
Thanks to modularity in forming and the capacity to modify to individual projects,
Huge importance in innovative solutions – they find application in HDD drives, drive modules, diagnostic systems, and modern systems.
Relatively small size with high pulling force – neodymium magnets offer high power in small dimensions, which enables their usage in miniature devices

Disadvantages

Problematic aspects of neodymium magnets: tips and applications.

At very strong impacts they can crack, therefore we recommend placing them in special holders. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
Neodymium magnets decrease their strength under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
When exposed to humidity, magnets start to rust. To use them in conditions outside, it is recommended to use protective magnets, such as those in rubber or plastics, which prevent oxidation and corrosion.
Limited ability of producing nuts in the magnet and complicated forms - recommended is cover - mounting mechanism.
Health risk resulting from small fragments of magnets can be dangerous, in case of ingestion, which is particularly important in the aspect of protecting the youngest. Additionally, small elements of these products are able to be problematic in diagnostics medical in case of swallowing.
High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which increases costs of application in large quantities

Lifting parameters

Maximum holding power of the magnet – what affects it?

Information about lifting capacity was determined for ideal contact conditions, assuming:

using a sheet made of low-carbon steel, functioning as a ideal flux conductor
whose transverse dimension is min. 10 mm
with a surface perfectly flat
under conditions of ideal adhesion (metal-to-metal)
under axial application of breakaway force (90-degree angle)
at conditions approx. 20°C

What influences lifting capacity in practice

In practice, the actual lifting capacity is determined by several key aspects, listed from the most important:

Gap between magnet and steel – every millimeter of separation (caused e.g. by veneer or dirt) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
Loading method – catalog parameter refers to detachment vertically. When applying parallel force, the magnet exhibits significantly lower power (typically approx. 20-30% of maximum force).
Element thickness – for full efficiency, the steel must be sufficiently thick. Thin sheet limits the lifting capacity (the magnet "punches through" it).
Plate material – low-carbon steel attracts best. Higher carbon content lower magnetic properties and lifting capacity.
Surface finish – ideal contact is possible only on polished steel. Any scratches and bumps create air cushions, weakening the magnet.
Thermal environment – heating the magnet results in weakening of force. Check the thermal limit for a given model.

Lifting capacity was determined by applying a steel plate with a smooth surface of suitable thickness (min. 20 mm), under perpendicular detachment force, however under shearing force the load capacity is reduced by as much as fivefold. Moreover, even a slight gap between the magnet’s surface and the plate reduces the lifting capacity.

Precautions when working with neodymium magnets

Skin irritation risks

Certain individuals experience a hypersensitivity to nickel, which is the standard coating for neodymium magnets. Frequent touching might lead to an allergic reaction. We recommend use safety gloves.

Conscious usage

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

Electronic devices

Do not bring magnets near a purse, computer, or TV. The magnetic field can irreversibly ruin these devices and erase data from cards.

Dust explosion hazard

Fire warning: Rare earth powder is explosive. Do not process magnets in home conditions as this may cause fire.

Permanent damage

Regular neodymium magnets (N-type) lose magnetization when the temperature goes above 80°C. This process is irreversible.

Swallowing risk

Neodymium magnets are not suitable for play. Eating multiple magnets can lead to them connecting inside the digestive tract, which constitutes a severe health hazard and necessitates immediate surgery.

Pacemakers

Warning for patients: Strong magnetic fields disrupt medical devices. Maintain at least 30 cm distance or ask another person to handle the magnets.

Serious injuries

Big blocks can crush fingers in a fraction of a second. Do not place your hand between two strong magnets.

Shattering risk

Despite the nickel coating, neodymium is brittle and cannot withstand shocks. Do not hit, as the magnet may crumble into sharp, dangerous pieces.

Threat to navigation

Be aware: rare earth magnets generate a field that disrupts sensitive sensors. Keep a safe distance from your mobile, device, and GPS.

Important! Learn more about risks in the article: Safety of working with magnets.

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

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

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical modeling of the magnet - technical parameters

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

Table 2: Sliding force (wall) MP 5x2.7/1.2x5 C / N38

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

Table 4: Steel thickness (substrate influence) - sheet metal selection MP 5x2.7/1.2x5 C / N38

Table 5: Thermal resistance (stability) - power drop MP 5x2.7/1.2x5 C / N38

Table 6: Two magnets (repulsion) - forces in the system MP 5x2.7/1.2x5 C / N38

Table 7: Safety (HSE) (implants) - precautionary measures MP 5x2.7/1.2x5 C / N38

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

Table 9: Anti-corrosion coating durability MP 5x2.7/1.2x5 C / N38

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

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

1. Shear force

2. Plate thickness effect

3. Power loss vs temp

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

Elemental analysis

Sustainability

Magnet pull force

Field Strength

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Advantages and disadvantages of neodymium magnets.

Pros

Disadvantages

Lifting parameters

Maximum holding power of the magnet – what affects it?

What influences lifting capacity in practice

Precautions when working with neodymium magnets

Skin irritation risks

Conscious usage

Electronic devices

Dust explosion hazard

Permanent damage

Swallowing risk

Pacemakers

Serious injuries

Shattering risk

Threat to navigation

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

Table 2: Sliding force (wall)
MP 5x2.7/1.2x5 C / N38

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

Table 4: Steel thickness (substrate influence) - sheet metal selection
MP 5x2.7/1.2x5 C / N38

Table 5: Thermal resistance (stability) - power drop
MP 5x2.7/1.2x5 C / N38

Table 6: Two magnets (repulsion) - forces in the system
MP 5x2.7/1.2x5 C / N38

Table 7: Safety (HSE) (implants) - precautionary measures
MP 5x2.7/1.2x5 C / N38

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

Table 9: Anti-corrosion coating durability
MP 5x2.7/1.2x5 C / N38

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

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