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MP 10x7/3.5x3 / N38 - ring magnet

ring magnet

Catalog no 030180

GTIN/EAN: 5906301811978

5.00
Load capacity 1.88 kg / 18.44 N Magnetic Induction -214.92 mT / -2149 Gs
Diameter
10 mm [±0,1 mm]
internal diameter Ø
7/3.5 mm [±0,1 mm]
Height
3 mm [±0,1 mm]
Weight
1.55 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

view technical specifications »

0.720 zł net / pcs

0.886 zł with VAT (23% VAT) / pcs

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Frequently asked questions

Where can I compare prices of ring magnets for mounting in Poland?
The DHIT price list and individual product cards show the available ring magnets and their current prices. Compare the outside diameter, hole diameter, height, grade and quantity before ordering.
Are ring magnets resistant to damage?
NdFeB is brittle and may crack on impact or when magnets collide. A coating or suitable housing can provide additional protection, but a screw must not place excessive stress on the magnet. Check the mounting instructions for the selected model.
Which ring magnet is suitable for an outdoor structure?
Check the coating, protection against moisture and the temperature reached at the actual installation site. An unprotected magnet should not be assumed suitable for continuous water exposure. Compare the conditions with the selected product card.
Where can I check the available sizes of neodymium ring magnets?
The category and price list show the dimensions of available models. Each product card gives the outside diameter, inside diameter and height. If a suitable size is missing, ask about a custom version.

Guides from the knowledge base

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
Want to talk magnets?

Call us now +48 888 99 98 98 alternatively let us know using contact form the contact section.
Specifications and structure of a neodymium magnet can be estimated using our power calculator.

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Detailed specification - MP 10x7/3.5x3 / N38 - ring magnet

Specification / characteristics - MP 10x7/3.5x3 / N38 - ring magnet

properties
properties values
Cat. no. 030180
GTIN/EAN 5906301811978
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 10 mm [±0,1 mm]
internal diameter Ø 7/3.5 mm [±0,1 mm]
Height 3 mm [±0,1 mm]
Weight 1.55 g
Magnetization Direction ↑ axial
Load capacity ~ ? 1.88 kg / 18.44 N
Magnetic Induction ~ ? -214.92 mT / -2149 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MP 10x7/3.5x3 / N38 - ring magnet
properties values units
Remanence Br ? 12.2-12.6 kGs
Remanence Br ? 1220-1260 mT
Coercivity bHc ? 10.8-11.5 kOe
Coercivity bHc ? 860-915 kA/m
Intrinsic coercivity iHc ≥ 12 kOe
Intrinsic coercivity iHc ≥ 955 kA/m
Energy product BHmax ? 36-38 BH max MGOe
Energy product BHmax ? 287-303 BH max KJ/m
Maximum working temperature ? ≤ 80 °C

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°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 310 °C
Curie Temperature TF 590 °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

Engineering simulation of the assembly - technical parameters

These data represent the result of a physical analysis. Results were calculated on models for the class Nd2Fe14B. Operational performance might slightly differ. Use these data as a preliminary roadmap when designing systems.

Table 1: Static pull force (pull vs distance) - interaction chart
MP 10x7/3.5x3 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 2813 Gs
281.3 mT
 1.88 kg / 4.14 LBS
1880.0 g / 18.4 N
 low risk
1 mm 2373 Gs
237.3 mT
 1.34 kg / 2.95 LBS
1338.1 g / 13.1 N
 low risk
2 mm 1870 Gs
187.0 mT
 0.83 kg / 1.83 LBS
830.9 g / 8.2 N
 low risk
3 mm 1416 Gs
141.6 mT
 0.48 kg / 1.05 LBS
476.6 g / 4.7 N
 low risk
5 mm 785 Gs
78.5 mT
 0.15 kg / 0.32 LBS
146.4 g / 1.4 N
 low risk
10 mm 214 Gs
21.4 mT
 0.01 kg / 0.02 LBS
10.9 g / 0.1 N
 low risk
15 mm 81 Gs
8.1 mT
 0.00 kg / 0.00 LBS
1.6 g / 0.0 N
 low risk
20 mm 38 Gs
3.8 mT
 0.00 kg / 0.00 LBS
0.3 g / 0.0 N
 low risk
30 mm 12 Gs
1.2 mT
 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
 low risk
50 mm 3 Gs
0.3 mT
 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
 low risk
Magnetic force weakens significantly with every mm of gap. Remember that every additional insulation layer (e.g., dirt, paint, rust) noticeably weakens the grip. Magnets operate optimally at the point of direct contact; gap nullifies the force. Analyze how quickly the parameters plummet, when the magnet does not adhere flatly to the steel surface. When calculating the arrangement, eliminate unnecessary gaps.

Table 2: Slippage hold (wall)
MP 10x7/3.5x3 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Raw steel (µ ≈ 0.2) 0.38 kg / 0.83 LBS
376.0 g / 3.7 N
1 mm Raw steel (µ ≈ 0.2) 0.27 kg / 0.59 LBS
268.0 g / 2.6 N
2 mm Raw steel (µ ≈ 0.2) 0.17 kg / 0.37 LBS
166.0 g / 1.6 N
3 mm Raw steel (µ ≈ 0.2) 0.10 kg / 0.21 LBS
96.0 g / 0.9 N
5 mm Raw steel (µ ≈ 0.2) 0.03 kg / 0.07 LBS
30.0 g / 0.3 N
10 mm Raw steel (µ ≈ 0.2) 0.00 kg / 0.00 LBS
2.0 g / 0.0 N
15 mm Raw steel (µ ≈ 0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
20 mm Raw steel (µ ≈ 0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
30 mm Raw steel (µ ≈ 0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
50 mm Raw steel (µ ≈ 0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
The following data presents the estimated force required to initiate the sliding of the magnet down along a vertical steel plate (considering typical friction). This value varies with the separation distance between the magnet and the metal.

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MP 10x7/3.5x3 / N38

Surface type Friction coefficient / % Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% of nominal force
0.56 kg / 1.24 LBS
564.0 g / 5.5 N
Painted steel (standard)
µ = 0.2 20% of nominal force
0.38 kg / 0.83 LBS
376.0 g / 3.7 N
Oily/slippery steel
µ = 0.1 10% of nominal force
0.19 kg / 0.41 LBS
188.0 g / 1.8 N
Magnet with anti-slip rubber
µ = 0.5 50% of nominal force
0.94 kg / 2.07 LBS
940.0 g / 9.2 N
When placing a holder on a vertical wall (e.g., a board), it will maintain just approx. 1/5 of its maximum pull force. Gravity as well as a low friction coefficient mean that magnets slide down easier than they pop off the substrate. Planning a vertical fastening? Remember that the shear force is significantly lower than the perpendicular breakaway force. On a slippery surface, the holder will give way down under a noticeably lighter cargo. Utilizing a rubberized pad can effectively raise the stability.

Table 4: Material efficiency (substrate influence) - sheet metal selection
MP 10x7/3.5x3 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.19 kg / 0.41 LBS
188.0 g / 1.8 N
1 mm
25%
 0.47 kg / 1.04 LBS
470.0 g / 4.6 N
2 mm
50%
 0.94 kg / 2.07 LBS
940.0 g / 9.2 N
3 mm
75%
 1.41 kg / 3.11 LBS
1410.0 g / 13.8 N
5 mm
100%
 1.88 kg / 4.14 LBS
1880.0 g / 18.4 N
10 mm
100%
 1.88 kg / 4.14 LBS
1880.0 g / 18.4 N
11 mm
100%
 1.88 kg / 4.14 LBS
1880.0 g / 18.4 N
12 mm
100%
 1.88 kg / 4.14 LBS
1880.0 g / 18.4 N
A thin sheet is unable to focus the entire magnetic field, which squanders power of the holder. Should you install a neodymium to a weak sheet, the flux will penetrate right through and the holding will be smaller. To achieve 100% of this magnet's power, you need a suitably thick backing of steel. The saturation phenomenon causes that on delicate walls (e.g., thin profiles), the holder holds weaker. We recommend selecting the steel thickness from these parameters.

Table 5: Thermal stability (stability) - resistance threshold
MP 10x7/3.5x3 / N38

Magnet temperature (°C) Force change relative to 20°C Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 1.88 kg / 4.14 LBS
1880.0 g / 18.4 N
 Estimate
40 °C -4.4% 1.80 kg / 3.96 LBS
1798.2 g / 17.6 N
 Estimate
60 °C -8.6% 1.72 kg / 3.79 LBS
1718.2 g / 16.9 N
 Estimate
80 °C -12.8% 1.64 kg / 3.62 LBS
1640.0 g / 16.1 N
 Material limit
100 °C — — Out of range — no model
The table estimates the reversible force change relative to 20°C, assuming a Br coefficient of -0.11%/°C and force proportional to Br². This is a simplified model with unchanged contact and geometry, not a measurement. Above the material limit, neither force nor irreversible magnetization loss is predicted.
The temperature limit comes from this product’s material data. Permissible conditions also depend on geometry and the magnetic circuit. Without B-H curves for the specific grade and temperature, Pc alone does not determine irreversible demagnetization. Values within the material range do not guarantee the allowable temperature of the complete assembly.

Table 6: Two magnets (attraction) - field range
MP 10x7/3.5x3 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Sliding Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 2.86 kg / 6.30 LBS
4 419 Gs
0.43 kg / 0.95 LBS
429 g / 4.2 N
 N/A
1 mm 2.46 kg / 5.43 LBS
5 224 Gs
0.37 kg / 0.81 LBS
370 g / 3.6 N
 2.22 kg / 4.89 LBS
~0 Gs
2 mm 2.03 kg / 4.49 LBS
4 747 Gs
0.31 kg / 0.67 LBS
305 g / 3.0 N
 1.83 kg / 4.04 LBS
~0 Gs
3 mm 1.62 kg / 3.58 LBS
4 242 Gs
0.24 kg / 0.54 LBS
244 g / 2.4 N
 1.46 kg / 3.22 LBS
~0 Gs
5 mm 0.96 kg / 2.12 LBS
3 266 Gs
0.14 kg / 0.32 LBS
144 g / 1.4 N
 0.87 kg / 1.91 LBS
~0 Gs
10 mm 0.22 kg / 0.49 LBS
1 570 Gs
0.03 kg / 0.07 LBS
33 g / 0.3 N
 0.20 kg / 0.44 LBS
~0 Gs
20 mm 0.02 kg / 0.04 LBS
429 Gs
0.00 kg / 0.01 LBS
2 g / 0.0 N
 0.01 kg / 0.03 LBS
~0 Gs
50 mm 0.00 kg / 0.00 LBS
41 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
25 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
16 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
11 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
8 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
6 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 wider radius than a magnet and steel setup. The connection of magnet-to-magnet creates a more powerful interaction and a wider radius of operation. Want to build a strong closure? Utilize two neodymiums instead of a neodymium and a striker plate. Exercise caution that when connecting a pair of magnets, the pinch force is massive. The levitation is marginally weaker than the attraction, but still significant.
*The magnetic induction for N-N configuration drops to ~0 Gs at the midpoint of the gap (resulting from vector opposition).
Note: Figures show sliding force of a pair of identical neodymium magnets (friction ~0.15 for Ni-Ni coating).

Table 7: Axial field levels — not safety zones
MP 10x7/3.5x3 / N38

Field level (Gs) mT Model distance (cm)
< 5 Gs < 0.5 mT 4.5 cm
< 10 Gs < 1.0 mT 3.5 cm
< 20 Gs < 2.0 mT 3.0 cm
< 40 Gs < 4.0 mT 2.0 cm
< 50 Gs < 5.0 mT 2.0 cm
< 400 Gs < 40.0 mT 1.0 cm
< 600 Gs < 60.0 mT 1.0 cm
Reference field levels for a model of one magnet, on its axis in air, with a 5 mm distance step. These are not device immunity limits or safe distances for implants. Do not use this table to assess the safety of a pacemaker, defibrillator or other implant; follow the device manufacturer’s and your clinician’s guidance. Steel and other magnets change the field distribution.

Table 8: Impact energy (kinetic energy) - warning
MP 10x7/3.5x3 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 26.06 km/h
(7.24 m/s)
 0.04 J
30 mm 26.15 km/h
(7.26 m/s)
 0.04 J
50 mm 26.15 km/h
(7.26 m/s)
 0.04 J
100 mm 26.15 km/h
(7.26 m/s)
 0.04 J
NdFeB products are prone to chipping – a violent impact against metal risks their cracking. Pay attention to connection velocity – a neodymium left loose turns into a projectile. Impact energy can destroy the magnet or painful pinches to skin. Be sure to control the product 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 neodymium. Wear safety glasses when working with powerful specimens.

Table 9: Coating parameters (durability)
MP 10x7/3.5x3 / 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 SST (salt spray test) is an industry standard for determining coating lifespan in harsh conditions. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Electrical data (Pc)
MP 10x7/3.5x3 / N38

Parameter Value SI Unit / Description
Magnetic Flux 1 899 Mx 19.0 µWb
Pc Coefficient 0.37 Low (Flat)
Total magnetic flux passing through the magnet pole. Essential parameter in coil applications as well as sensors. Pc value defines the working geometry.

Table 11: Underwater work (magnet fishing)
MP 10x7/3.5x3 / N38

Environment Effective steel pull Effect
Air (land) 1.88 kg Standard
Water (riverbed) 2.15 kg
(+0.27 kg buoyancy gain)
+14.5%
Rust risk: Remember to wipe the magnet thoroughly after removing it from water and apply a protective layer (e.g., oil) to avoid corrosion.
In water, the magnet feels stronger thanks to Archimedes' principle. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Wall mount (shear)

*Note: On a vertical surface, the magnet retains just a fraction of its nominal pull.

2. Efficiency vs thickness

*Thin steel (e.g. 0.5mm PC case) severely weakens the holding force.

3. Heat tolerance

N38: the maximum material working temperature is 80°C. Permitted conditions also depend on the shape and magnetic circuit.

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.37

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 Pc (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 Pc 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

Material specification

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: 030180-2026
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The ring-shaped magnet MP 10x7/3.5x3 / N38 is created for mechanical fastening, where glue might fail or be insufficient. 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. The flat screw head should evenly press the magnet. 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.
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.
The presented product is a ring magnet with dimensions Ø10 mm (outer diameter) and height 3 mm. The pulling force of this model is an impressive 1.88 kg, which translates to 18.44 N in newtons. The mounting hole diameter is precisely 7/3.5 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.

Pros as well as cons of Nd2Fe14B magnets.

Strengths

Besides their stability, neodymium magnets are valued for these benefits:
  • Their magnetic field is durable, and after around ten years it decreases only by ~1% (according to research),
  • They are resistant to demagnetization induced by presence of other magnetic fields,
  • The use of an metallic coating of noble metals (nickel, gold, silver) causes the element to have aesthetics,
  • Magnets exhibit huge magnetic induction on the working surface,
  • Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and are able to act (depending on the shape) even at a temperature of 230°C or more...
  • Considering the ability of free molding and adaptation to unique projects, magnetic components can be modeled in a broad palette of shapes and sizes, which expands the range of possible applications,
  • Huge importance in electronics industry – they serve a role in hard drives, motor assemblies, precision medical tools, also complex engineering applications.
  • Thanks to concentrated force, small magnets offer high operating force, with minimal size,

Limitations

Disadvantages of neodymium magnets:
  • To avoid cracks upon strong impacts, we recommend using special steel holders. Such a solution protects the magnet and simultaneously improves its durability.
  • Do not exceed this material temperature limit: 80°C. Overheating may permanently weaken the magnet.
  • They oxidize in a humid environment. For use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
  • Limited ability of creating threads in the magnet and complicated shapes - recommended is cover - magnet mounting.
  • Possible danger related to microscopic parts of magnets are risky, if swallowed, which is particularly important in the context of child health protection. Furthermore, small components of these products are able to disrupt the diagnostic process medical when they are in the body.
  • Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Holding force characteristics

Highest magnetic holding force – what contributes to it?

Magnet power was defined for optimal configuration, including:
  • using a plate made of high-permeability steel, functioning as a ideal flux conductor
  • possessing a thickness of minimum 10 mm to ensure full flux closure
  • characterized by even structure
  • under conditions of ideal adhesion (metal-to-metal)
  • during detachment in a direction perpendicular to the mounting surface
  • at temperature room level

Determinants of lifting force in real conditions

Bear in mind that the application force may be lower subject to the following factors, in order of importance:
  • Space between surfaces – even a fraction of a millimeter of distance (caused e.g. by veneer or unevenness) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
  • Force direction – remember that the magnet has greatest strength perpendicularly. Under sliding down, the holding force drops significantly, often to levels of 20-30% of the maximum value.
  • Base massiveness – too thin plate causes magnetic saturation, causing part of the power to be lost into the air.
  • Chemical composition of the base – low-carbon steel attracts best. Alloy admixtures reduce magnetic properties and lifting capacity.
  • Base smoothness – the more even the surface, the better the adhesion and stronger the hold. Unevenness acts like micro-gaps.
  • Heat – neodymium magnets have a negative temperature coefficient. When it is hot they lose power, and at low temperatures gain strength (up to a certain limit).

Holding force was tested on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, however under parallel forces the load capacity is reduced by as much as fivefold. Moreover, even a slight gap between the magnet and the plate reduces the lifting capacity.

Warnings
No play value

Strictly keep magnets out of reach of children. Ingestion danger is high, and the effects of magnets clamping inside the body are tragic.

Electronic devices

Very strong magnetic fields can erase data on credit cards, HDDs, and storage devices. Maintain a gap of min. 10 cm.

Implant safety

Health Alert: Neodymium magnets can turn off pacemakers and defibrillators. Do not approach if you have medical devices.

Nickel coating and allergies

Warning for allergy sufferers: The Ni-Cu-Ni coating consists of nickel. If redness appears, immediately stop handling magnets and use protective gear.

Precision electronics

GPS units and mobile phones are highly susceptible to magnetism. Direct contact with a strong magnet can permanently damage the sensors in your phone.

Heat sensitivity

Do not exceed the maximum operating temperature stated in the specifications of the particular product. The limit depends on the material, geometry and operating arrangement; there is no single threshold for all neodymium magnets. Overheating can permanently weaken a magnet.

Mechanical processing

Dust produced during cutting of magnets is combustible. Avoid drilling into magnets without proper cooling and knowledge.

Pinching danger

Mind your fingers. Two large magnets will join instantly with a force of several hundred kilograms, destroying everything in their path. Exercise extreme caution!

Material brittleness

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

Do not underestimate power

Handle magnets consciously. Their powerful strength can shock even professionals. Be vigilant and do not underestimate their force.

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