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MP 10x4.3x4 / N38 - ring magnet

ring magnet

Catalog no 030178

GTIN/EAN: 5906301811954

5.00
Load capacity 2.28 kg / 22.35 N Magnetic Induction 386.91 mT / 3869 Gs
Diameter
10 mm [±0,1 mm]
internal diameter Ø
4.3 mm [±0,1 mm]
Height
4 mm [±0,1 mm]
Weight
1.92 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

technical details »

0.850 zł net / pcs

1.045 zł with VAT (23% VAT) / pcs

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Frequently asked questions

What is the hole in a ring magnet for?
For mounting on a screw or a shaft. The bore may be cylindrical or countersunk for a screw head. The hole removes magnet volume, so a ring holds less than a disc of the same outside diameter.
What is the polarisation?
Axial as standard — poles on the flat faces of the ring. Diametrical polarisation is made to order.
What sizes are available?
Outside diameter from 5 to 62 mm from stock. To order up to 200 mm outside diameter, 180 mm bore and 40 mm height, with a lead time of 25–35 days.

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.

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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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Technical data - MP 10x4.3x4 / N38 - ring magnet

Specification / characteristics - MP 10x4.3x4 / N38 - ring magnet

properties
properties values
Cat. no. 030178
GTIN/EAN 5906301811954
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 4.3 mm [±0,1 mm]
Height 4 mm [±0,1 mm]
Weight 1.92 g
Magnetization Direction ↑ axial
Load capacity ~ ? 2.28 kg / 22.35 N
Magnetic Induction ~ ? 386.91 mT / 3869 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MP 10x4.3x4 / 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

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 analysis of the magnet - data

These information are the outcome of a mathematical analysis. Results rely on algorithms for the material Nd2Fe14B. Actual conditions might slightly differ from theoretical values. Use these calculations as a preliminary roadmap when designing systems.

Table 1: Static pull force (force vs gap) - power drop
MP 10x4.3x4 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 6115 Gs
611.5 mT
 2.28 kg / 5.03 pounds
2280.0 g / 22.4 N
 medium risk
1 mm 4915 Gs
491.5 mT
 1.47 kg / 3.25 pounds
1473.3 g / 14.5 N
 weak grip
2 mm 3833 Gs
383.3 mT
 0.90 kg / 1.97 pounds
895.7 g / 8.8 N
 weak grip
3 mm 2949 Gs
294.9 mT
 0.53 kg / 1.17 pounds
530.3 g / 5.2 N
 weak grip
5 mm 1761 Gs
176.1 mT
 0.19 kg / 0.42 pounds
189.1 g / 1.9 N
 weak grip
10 mm 612 Gs
61.2 mT
 0.02 kg / 0.05 pounds
22.8 g / 0.2 N
 weak grip
15 mm 284 Gs
28.4 mT
 0.00 kg / 0.01 pounds
4.9 g / 0.0 N
 weak grip
20 mm 157 Gs
15.7 mT
 0.00 kg / 0.00 pounds
1.5 g / 0.0 N
 weak grip
30 mm 64 Gs
6.4 mT
 0.00 kg / 0.00 pounds
0.3 g / 0.0 N
 weak grip
50 mm 19 Gs
1.9 mT
 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
 weak grip
Pulling power decreases significantly with every subsequent millimeter of gap. Keep in mind that even the smallest gap (e.g., contamination, paint, dust) significantly diminishes the holding power. Magnets operate optimally in perfect adhesion; gap nullifies the power. Analyze how quickly the load capacity plummet, when the magnet does not adhere tightly to the steel surface. When calculating the arrangement, eliminate additional spacers.

Table 2: Shear hold (wall)
MP 10x4.3x4 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.46 kg / 1.01 pounds
456.0 g / 4.5 N
1 mm Stal (~0.2) 0.29 kg / 0.65 pounds
294.0 g / 2.9 N
2 mm Stal (~0.2) 0.18 kg / 0.40 pounds
180.0 g / 1.8 N
3 mm Stal (~0.2) 0.11 kg / 0.23 pounds
106.0 g / 1.0 N
5 mm Stal (~0.2) 0.04 kg / 0.08 pounds
38.0 g / 0.4 N
10 mm Stal (~0.2) 0.00 kg / 0.01 pounds
4.0 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
The following data shows the estimated force required to start the shifting of the magnet down against a vertical steel wall (assuming typical friction). This value varies with the air gap between the magnet and the metal.

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MP 10x4.3x4 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.68 kg / 1.51 pounds
684.0 g / 6.7 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.46 kg / 1.01 pounds
456.0 g / 4.5 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.23 kg / 0.50 pounds
228.0 g / 2.2 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
1.14 kg / 2.51 pounds
1140.0 g / 11.2 N
When placing a magnet on a vertical surface (e.g., a board), it you can count on barely approx. 20%-30% of its maximum pull force. Gravity as well as a low friction coefficient influence the fact that holders slip easier than they pop off the substrate. Designing a hanger? Remember that the shear force is noticeably lower than the perpendicular breakaway force. On a smooth steel, the magnet will give way down under a significantly smaller cargo. Using a rubber pad can significantly raise the stability.

Table 4: Material efficiency (saturation) - power losses
MP 10x4.3x4 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.23 kg / 0.50 pounds
228.0 g / 2.2 N
1 mm
25%
 0.57 kg / 1.26 pounds
570.0 g / 5.6 N
2 mm
50%
 1.14 kg / 2.51 pounds
1140.0 g / 11.2 N
3 mm
75%
 1.71 kg / 3.77 pounds
1710.0 g / 16.8 N
5 mm
100%
 2.28 kg / 5.03 pounds
2280.0 g / 22.4 N
10 mm
100%
 2.28 kg / 5.03 pounds
2280.0 g / 22.4 N
11 mm
100%
 2.28 kg / 5.03 pounds
2280.0 g / 22.4 N
12 mm
100%
 2.28 kg / 5.03 pounds
2280.0 g / 22.4 N
A thin metal plate cannot absorb the entire magnetic field, which squanders power of the holder. Should you install a neodymium to a thin surface, the magnetism will penetrate right through and the pull force will drop sharply. To squeeze the maximum of this neodymium's potential, you need a suitably thick backing of steel. The material oversaturation causes that on delicate walls (e.g., car bodies), the product works worse. We advise picking the steel thickness based on the following data.

Table 5: Working in heat (material behavior) - resistance threshold
MP 10x4.3x4 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 2.28 kg / 5.03 pounds
2280.0 g / 22.4 N
 OK
40 °C -2.2% 2.23 kg / 4.92 pounds
2229.8 g / 21.9 N
 OK
60 °C -4.4% 2.18 kg / 4.81 pounds
2179.7 g / 21.4 N
 OK
80 °C -6.6% 2.13 kg / 4.69 pounds
2129.5 g / 20.9 N
100 °C -28.8% 1.62 kg / 3.58 pounds
1623.4 g / 15.9 N
Ordinary NdFeB products irreversibly lose strength above the temperature limit. Watch out for overheating – heat can irreversibly demagnetize this magnet. With every degree above norm, the neodymium's power briefly lowers. Avoid using this magnet close to ovens exceeding its safe range. Too high temperature will cause irreversible degradation of magnetic properties.
*Engineering note: Heat tolerance is determined by both grade, and the Permeance Coefficient Pc. Low-profile magnets (low permeance coefficient) are more susceptible to demagnetization under lower heat stress than long magnets. Red status in the table signals permanent field degradation for this particular item.

Table 6: Magnet-Magnet interaction (attraction) - field collision
MP 10x4.3x4 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Lateral Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 12.93 kg / 28.50 pounds
6 169 Gs
1.94 kg / 4.27 pounds
1939 g / 19.0 N
 N/A
1 mm 10.50 kg / 23.16 pounds
11 025 Gs
1.58 kg / 3.47 pounds
1576 g / 15.5 N
 9.45 kg / 20.84 pounds
~0 Gs
2 mm 8.35 kg / 18.41 pounds
9 831 Gs
1.25 kg / 2.76 pounds
1253 g / 12.3 N
 7.52 kg / 16.57 pounds
~0 Gs
3 mm 6.55 kg / 14.43 pounds
8 703 Gs
0.98 kg / 2.17 pounds
982 g / 9.6 N
 5.89 kg / 12.99 pounds
~0 Gs
5 mm 3.91 kg / 8.63 pounds
6 729 Gs
0.59 kg / 1.29 pounds
587 g / 5.8 N
 3.52 kg / 7.76 pounds
~0 Gs
10 mm 1.07 kg / 2.36 pounds
3 522 Gs
0.16 kg / 0.35 pounds
161 g / 1.6 N
 0.96 kg / 2.13 pounds
~0 Gs
20 mm 0.13 kg / 0.29 pounds
1 223 Gs
0.02 kg / 0.04 pounds
19 g / 0.2 N
 0.12 kg / 0.26 pounds
~0 Gs
50 mm 0.00 kg / 0.01 pounds
194 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
129 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
91 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
66 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
50 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
39 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
 0.00 kg / 0.00 pounds
~0 Gs
Two magnets interact from a wider radius than a magnet and steel setup. The connection of magnet-to-magnet produces a massive flux and a larger range of action. Planning to create a strong closure? Use a pair of magnets instead of a neodymium and a steel. Remember that when bringing together two magnets, the collision energy is huge. The levitation is slightly lower than the connection force, but still large.
*Field value for N-N configuration drops to ~0 Gs at the geometric center of the gap (caused by magnetic field nullification).
Attention: Figures refer to sliding force of a pair of matching neodymium magnets (friction coefficient ~0.15 for Ni-Ni plating).

Table 7: Hazards (electronics) - precautionary measures
MP 10x4.3x4 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 9.0 cm
Hearing aid 10 Gs (1.0 mT) 7.0 cm
Timepiece 20 Gs (2.0 mT) 5.0 cm
Phone / Smartphone 40 Gs (4.0 mT) 4.0 cm
Remote 50 Gs (5.0 mT) 3.5 cm
Payment card 400 Gs (40.0 mT) 1.5 cm
HDD hard drive 600 Gs (60.0 mT) 1.5 cm
Extremely neodym field is a serious hazard to IT equipment and medical implants. These magnets produce a field that prevents correct functioning of digital equipment. Notice: the invisible magnetic field passes through tissues and plastic. Increased vigilance must be exercised by people with cochlear implants and drug dispensers. Also at risk are: automatic timepieces, remotes, membranes, and displays. Do not bring the product near payment cards, hard drives, or precise measuring instruments.

Table 8: Impact energy (cracking risk) - warning
MP 10x4.3x4 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 25.10 km/h
(6.97 m/s)
 0.05 J
30 mm 25.30 km/h
(7.03 m/s)
 0.05 J
50 mm 25.30 km/h
(7.03 m/s)
 0.05 J
100 mm 25.30 km/h
(7.03 m/s)
 0.05 J
Neodymium magnets are very brittle – a violent impact against metal risks their cracking. Control the attraction moment – a neodymium left loose becomes dangerous. Kinetic force can cause material chips or painful pinches to skin. Always hold the magnet during bringing near metal 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 neodymium. Wear safety glasses when handling with large magnets.

Table 9: Surface protection spec
MP 10x4.3x4 / 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. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Electrical data (Pc)
MP 10x4.3x4 / N38

Parameter Value SI Unit / Description
Magnetic Flux 4 017 Mx 40.2 µWb
Pc Coefficient 1.44 High (Stable)
Flux value emitted by the pole surface. Essential parameter in coil applications as well as sensors. The Pc coefficient defines the magnet's operating point.

Table 11: Submerged application
MP 10x4.3x4 / N38

Environment Effective steel pull Effect
Air (land) 2.28 kg Standard
Water (riverbed) 2.61 kg
(+0.33 kg buoyancy gain)
+14.5%
Corrosion warning: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!
Contrary to myths, water does not block the magnetic field. However, remember the water resistance when pulling the rope quickly.

1. Wall mount (shear)

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

2. Steel saturation

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

3. Heat tolerance

*For N38 grade, the max working temp is 80°C.

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 1.44

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

Elemental analysis

iron (Fe) 64% – 68%
neodymium (Nd) 29% – 32%
boron (B) 1.1% – 1.2%
dysprosium (Dy) 0.5% – 2.0%
coating (Ni-Cu-Ni) < 0.05%

Environmental data

recyclability (EoL) 100%
recycled raw materials ~10% (pre-cons)
carbon footprint low / zredukowany
waste code (EWC) 16 02 16
Safety card (GPSR)
responsible entity
Dhit sp. z o.o.
ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki
tel: +48 22 499 98 98 | e-mail: bok@dhit.pl
batch number/type
id: 030178-2026
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The ring magnet with a hole MP 10x4.3x4 / N38 is created for mechanical fastening, where glue might fail or be insufficient. Thanks to the hole (often for a screw), this model enables easy screwing to wood, wall, plastic, or metal. It is also often used in advertising for fixing signs and in workshops for organizing tools.
This is a crucial issue when working with model MP 10x4.3x4 / N38. Neodymium magnets are sintered ceramics, which means they are very brittle and inelastic. When tightening the screw, you must maintain great sensitivity. 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 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. 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. For magnets with a straight hole, a conical head can act like a wedge and burst the magnet. Aesthetic mounting requires selecting the appropriate head size.
The presented product is a ring magnet with dimensions Ø10 mm (outer diameter) and height 4 mm. The key parameter here is the lifting capacity amounting to approximately 2.28 kg (force ~22.35 N). The mounting hole diameter is precisely 4.3 mm.
The poles are located on the planes with holes, not on the sides of the ring. 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 as well as disadvantages of Nd2Fe14B magnets.

Strengths

Besides their stability, neodymium magnets are valued for these benefits:
  • They have constant strength, and over more than 10 years their performance decreases symbolically – ~1% (in testing),
  • They do not lose their magnetic properties even under external field action,
  • A magnet with a shiny silver surface has an effective appearance,
  • The surface of neodymium magnets generates a concentrated magnetic field – this is a key feature,
  • Thanks to resistance to high temperature, they can operate (depending on the form) even at temperatures up to 230°C and higher...
  • Thanks to versatility in designing and the ability to modify to specific needs,
  • Key role in advanced technology sectors – they are commonly used in magnetic memories, electromotive mechanisms, medical equipment, as well as complex engineering applications.
  • Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in tiny dimensions, which allows their use in small systems

Limitations

Disadvantages of NdFeB magnets:
  • They are prone to damage upon too strong impacts. To avoid cracks, it is worth protecting magnets in special housings. Such protection not only shields the magnet but also increases its resistance to damage
  • Neodymium magnets lose strength when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of strength (a factor is the shape and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely resistant to heat
  • Magnets exposed to a humid environment can rust. Therefore while using outdoors, we recommend using waterproof magnets made of rubber, plastic or other material protecting against moisture
  • We suggest a housing - magnetic mechanism, due to difficulties in creating threads inside the magnet and complicated shapes.
  • Health risk related to microscopic parts of magnets can be dangerous, when accidentally swallowed, which is particularly important in the aspect of protecting the youngest. Additionally, tiny parts of these magnets can be problematic in diagnostics medical in case of swallowing.
  • Due to neodymium price, their price exceeds standard values,

Lifting parameters

Detachment force of the magnet in optimal conditions – what it depends on?

The declared magnet strength refers to the maximum value, obtained under ideal test conditions, meaning:
  • on a block made of structural steel, optimally conducting the magnetic flux
  • whose transverse dimension reaches at least 10 mm
  • characterized by smoothness
  • with direct contact (no paint)
  • under axial force vector (90-degree angle)
  • in stable room temperature

Lifting capacity in practice – influencing factors

Bear in mind that the magnet holding will differ subject to the following factors, in order of importance:
  • Space between surfaces – even a fraction of a millimeter of separation (caused e.g. by varnish or dirt) diminishes the pulling force, often by half at just 0.5 mm.
  • Loading method – declared lifting capacity refers to detachment vertically. When attempting to slide, the magnet holds much less (often approx. 20-30% of maximum force).
  • Base massiveness – insufficiently thick steel causes magnetic saturation, causing part of the power to be escaped into the air.
  • Chemical composition of the base – mild steel attracts best. Alloy steels lower magnetic properties and lifting capacity.
  • Surface quality – the more even the surface, the better the adhesion and stronger the hold. Unevenness acts like micro-gaps.
  • Thermal factor – hot environment weakens pulling force. Exceeding the limit temperature can permanently damage the magnet.

Lifting capacity was determined using a smooth steel plate of optimal thickness (min. 20 mm), under perpendicular detachment force, in contrast under parallel forces the lifting capacity is smaller. Moreover, even a minimal clearance between the magnet and the plate reduces the holding force.

H&S for magnets
Hand protection

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

Life threat

Patients with a heart stimulator have to maintain an safe separation from magnets. The magnetism can stop the operation of the life-saving device.

Metal Allergy

Studies show that nickel (standard magnet coating) is a strong allergen. For allergy sufferers, avoid touching magnets with bare hands or opt for versions in plastic housing.

Electronic hazard

Intense magnetic fields can corrupt files on credit cards, HDDs, and storage devices. Keep a distance of min. 10 cm.

This is not a toy

Absolutely keep magnets out of reach of children. Ingestion danger is high, and the consequences of magnets connecting inside the body are life-threatening.

Powerful field

Use magnets with awareness. Their huge power can surprise even professionals. Be vigilant and do not underestimate their force.

Fire warning

Machining of NdFeB material carries a risk of fire hazard. Magnetic powder oxidizes rapidly with oxygen and is hard to extinguish.

Shattering risk

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

Heat sensitivity

Avoid heat. NdFeB magnets are susceptible to heat. If you require operation above 80°C, ask us about HT versions (H, SH, UH).

Magnetic interference

GPS units and smartphones are extremely susceptible to magnetic fields. Direct contact with a powerful NdFeB magnet can decalibrate the internal compass in your phone.

Warning! Learn more about hazards in the article: Magnet Safety Guide.