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MP 5x2.7/1.2x5 C / 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 030201

GTIN/EAN: 5906301812180

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

see technical specifications »

0.836 ZŁ with VAT / pcs + price for transport

0.680 ZŁ net + 23% VAT / pcs

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Technical specification - 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

Physical analysis of the magnet - technical parameters

Presented information are the outcome of a physical analysis. Results rely on models for the class Nd₂Fe₁₄B. Real-world conditions might slightly differ. Please consider these calculations as a reference point during assembly planning.

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

Magnetic force drops drastically with every mm of distance. Note that even the smallest gap (e.g., dirt, paint, rust) significantly diminishes the holding power. Neodymiums operate strongest in perfect adhesion; distance drastically cuts the force. Notice how flashily the pull force fall, when the product does not adhere tightly to the steel surface. When planning the arrangement, eliminate redundant distances.

Table 2: Vertical hold (vertical surface)
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 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

The following data calculates the estimated weight limit sufficient to start the downward movement of the magnet downwards along a vertical steel wall (considering typical friction). This parameter is a function of the distance between the magnet and the surface.

Table 3: Wall mounting (shearing) - vertical pull
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 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 placing a holder on a upright plane (e.g., a board), it will only hold only about 20%-30% of its maximum pull force. Gravitational force and a weak degree of grip mean that holders slip easier than they pull off. Planning a vertical fastening? Consider that the sliding force is significantly lower than the maximum static pull force. On a smooth steel, the magnet will give way down under a much lighter load. Using a rubber layer can drastically raise the stability.

Table 4: Material efficiency (saturation) - 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 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 too thin steel is not enough to absorb the full magnetic flux, which wastes potential of the holder. If you install a neodymium to a weak sheet, the field will pass right through and the attraction force will be weaker. To utilize full efficiency of this magnet's potential, you need a suitably thick piece of metal. The saturation phenomenon means that on sheet metal structures (e.g., appliance housings), the magnet works worse. We recommend selecting the steel dimension according to the table below.

Table 5: Working in heat (material behavior) - 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 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

Standard neodymium magnets irreversibly lose power past the thermal threshold. Protect against heat – heat can irreversibly destroy this magnet. As the temperature rises, the magnet's power briefly decreases. Refrain from using this magnet in hot environments higher than its safe range. Exceeding the critical threshold will result in destruction of magnetic properties.

*Important note: Heat tolerance is determined by both grade, as well as the dimension ratios. Flat magnets (low Pc) risk losing magnetic properties at lower temperatures than taller cylinders. Red status in the table indicates permanent field degradation for this specific geometry.

Table 6: Magnet-Magnet interaction (repulsion) - field collision
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 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 magnetic products attract each other from a much further distance than a magnet and sheet combination. The connection of two magnets generates a stronger field and a larger range of performance. Designing a solid fastener? Apply two magnets instead of a neodymium and a striker plate. Exercise caution that when connecting a pair of magnets, the collision energy is extreme. The levitation is marginally weaker than the attraction, but still impressive.
*The magnetic induction between like poles drops to ~0 Gs in the exact middle of the gap (due to field cancellation).
Important: Calculations show sliding force of two matching neodymium magnets (friction coefficient ~0.15 for Ni-Ni plating).

Table 7: Protective zones (implants) - warnings
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
Mechanical watch	20 Gs (2.0 mT)	2.0 cm
Mobile device	40 Gs (4.0 mT)	1.5 cm
Remote	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

A strong magnetic field poses a serious hazard to IT equipment as well as medical implants. These NdFeB products produce a flux that prevents correct functioning of sensitive medical devices. Be aware: the unseen radiation acts through matter and housings. Special caution must be exercised by people with cochlear implants and insulin pumps. Also at risk are: mechanical watches, remotes, speakers, and screens. Do not place the magnet near cards, hard drives, or precise measuring instruments.

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

NdFeB products are prone to chipping – a strong collision with metal causes immediate chipping. Control the attraction moment – a neodymium left loose becomes dangerous. Kinetic force can cause material chips or painful pinches to skin. Hold the magnet firmly during mounting so it doesn't hit violently against the metal. A contact at a velocity of dozens of km/h ends with a crack of the magnet. Wear safety glasses when working with large magnets.

Table 9: Surface protection spec
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)

Neodymium magnets are highly susceptible to corrosion without proper protection. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Construction data (Flux)
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)

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

Table 11: Underwater work (magnet fishing)
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%

Corrosion warning: Remember to wipe the magnet thoroughly after removing it from water and apply a protective layer (e.g., oil) to avoid corrosion.

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

1. Shear force

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

2. Steel thickness impact

*Thin steel (e.g. 0.5mm PC case) severely 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.

Technical specification and ecology

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

Magnet Unit Converter

Force (pull)

Force (N)

Pounds (lbs)

Magnetic Field

Induction (T)

Just populate one field, and the converter fill in everything else for you.

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The ring-shaped magnet MP 5x2.7/1.2x5 C / N38 is created for mechanical fastening, where glue might fail or be insufficient. Thanks to the hole (often for a screw), this model enables quick installation to wood, wall, plastic, or metal. This product with a force of 0.75 kg works great as a door latch, speaker holder, or spacer element in devices.

This is a crucial issue when working with model MP 5x2.7/1.2x5 C / N38. Neodymium magnets are sintered ceramics, which means they are very brittle and inelastic. When tightening the screw, you must maintain caution. We recommend tightening manually with a screwdriver, not an impact driver, because too much pressure 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.

These magnets are coated with standard Ni-Cu-Ni plating, which protects them in indoor conditions, but does not ensure full waterproofing. 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.

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. Aesthetic mounting requires selecting the appropriate head size.

The presented product is a ring magnet with dimensions Ø5 mm (outer diameter) and height 5 mm. 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. 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.

Advantages

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

They virtually do not lose power, because even after 10 years the decline in efficiency is only ~1% (according to literature),
They are noted for resistance to demagnetization induced by external disturbances,
By applying a lustrous layer of nickel, the element acquires an modern look,
Neodymium magnets generate maximum magnetic induction on a small surface, which increases force concentration,
Through (adequate) combination of ingredients, they can achieve high thermal strength, allowing for action at temperatures approaching 230°C and above...
Possibility of accurate shaping as well as adapting to defined conditions,
Huge importance in high-tech industry – they are used in hard drives, motor assemblies, medical equipment, also multitasking production systems.
Compactness – despite small sizes they generate large force, making them ideal for precision applications

Weaknesses

Disadvantages of NdFeB magnets:

Brittleness is one of their disadvantages. Upon intense impact they can fracture. We recommend keeping them in a special holder, which not only protects them against impacts but also increases their durability
NdFeB magnets lose force when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of power (a factor is the shape as well as 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
Magnets exposed to a humid environment can corrode. Therefore while using outdoors, we advise using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
Due to limitations in realizing threads and complicated shapes in magnets, we propose using cover - magnetic mount.
Potential hazard related to microscopic parts of magnets pose a threat, when accidentally swallowed, which becomes key in the context of child safety. Furthermore, tiny parts of these magnets are able to be problematic in diagnostics medical in case of swallowing.
With mass production the cost of neodymium magnets can be a barrier,

Holding force characteristics

Magnetic strength at its maximum – what affects it?

Magnet power was defined for ideal contact conditions, assuming:

on a base made of structural steel, effectively closing the magnetic field
whose transverse dimension equals approx. 10 mm
characterized by even structure
under conditions of no distance (surface-to-surface)
during detachment in a direction perpendicular to the mounting surface
at ambient temperature room level

What influences lifting capacity in practice

During everyday use, the actual lifting capacity results from a number of factors, presented from most significant:

Air gap (betwixt the magnet and the metal), because even a very small clearance (e.g. 0.5 mm) can cause a reduction in force by up to 50% (this also applies to paint, corrosion or debris).
Angle of force application – highest force is available only during perpendicular pulling. The shear force of the magnet along the plate is typically several times smaller (approx. 1/5 of the lifting capacity).
Element thickness – to utilize 100% power, the steel must be sufficiently thick. Thin sheet restricts the attraction force (the magnet "punches through" it).
Steel grade – the best choice is pure iron steel. Cast iron may attract less.
Surface structure – the more even the surface, the larger the contact zone and stronger the hold. Roughness creates an air distance.
Heat – neodymium magnets have a sensitivity to temperature. When it is hot they are weaker, and in frost they can be stronger (up to a certain limit).

Lifting capacity was determined with the use of a smooth steel plate of suitable thickness (min. 20 mm), under perpendicular pulling force, however under attempts to slide the magnet the lifting capacity is smaller. In addition, even a minimal clearance between the magnet and the plate lowers the holding force.

Precautions when working with neodymium magnets

This is not a toy

Adult use only. Tiny parts pose a choking risk, leading to serious injuries. Keep away from children and animals.

Handling guide

Handle magnets with awareness. Their huge power can shock even experienced users. Stay alert and respect their force.

Serious injuries

Protect your hands. Two powerful magnets will snap together immediately with a force of massive weight, destroying everything in their path. Exercise extreme caution!

Warning for heart patients

For implant holders: Strong magnetic fields disrupt electronics. Keep at least 30 cm distance or request help to handle the magnets.

Nickel allergy

Some people suffer from a contact allergy to nickel, which is the common plating for neodymium magnets. Prolonged contact may cause dermatitis. We suggest wear safety gloves.

Fire warning

Machining of NdFeB material poses a fire hazard. Neodymium dust reacts violently with oxygen and is difficult to extinguish.

Data carriers

Powerful magnetic fields can erase data on payment cards, hard drives, and other magnetic media. Maintain a gap of min. 10 cm.

Power loss in heat

Standard neodymium magnets (grade N) lose magnetization when the temperature exceeds 80°C. This process is irreversible.

Shattering risk

Despite the nickel coating, neodymium is delicate and not impact-resistant. Do not hit, as the magnet may shatter into hazardous fragments.

GPS and phone interference

A strong magnetic field disrupts the operation of compasses in smartphones and navigation systems. Keep magnets near a smartphone to prevent damaging the sensors.

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

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

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

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical analysis of the magnet - technical parameters

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

Table 2: Vertical hold (vertical surface) MP 5x2.7/1.2x5 C / N38

Table 3: Wall mounting (shearing) - vertical pull MP 5x2.7/1.2x5 C / N38

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

Table 5: Working in heat (material behavior) - power drop MP 5x2.7/1.2x5 C / N38

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

Table 7: Protective zones (implants) - warnings MP 5x2.7/1.2x5 C / N38

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

Table 9: Surface protection spec MP 5x2.7/1.2x5 C / N38

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

Table 11: Underwater work (magnet fishing) MP 5x2.7/1.2x5 C / N38

1. Shear force

2. Steel thickness impact

3. Power loss vs temp

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

Elemental analysis

Sustainability

Force (pull)

Magnetic Field

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Pros and cons of neodymium magnets.

Advantages

Weaknesses

Holding force characteristics

Magnetic strength at its maximum – what affects it?

What influences lifting capacity in practice

Precautions when working with neodymium magnets

This is not a toy

Handling guide

Serious injuries

Warning for heart patients

Nickel allergy

Fire warning

Data carriers

Power loss in heat

Shattering risk

GPS and phone interference

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

Table 2: Vertical hold (vertical surface)
MP 5x2.7/1.2x5 C / N38

Table 3: Wall mounting (shearing) - vertical pull
MP 5x2.7/1.2x5 C / N38

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

Table 5: Working in heat (material behavior) - power drop
MP 5x2.7/1.2x5 C / N38

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

Table 7: Protective zones (implants) - warnings
MP 5x2.7/1.2x5 C / N38

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

Table 9: Surface protection spec
MP 5x2.7/1.2x5 C / N38

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

Table 11: Underwater work (magnet fishing)
MP 5x2.7/1.2x5 C / N38