Awaiting delivery Ships in 14 days CO2 GPSR PPWR REACH

MPL 22x10x6 / N38 - lamellar magnet

lamellar magnet

Catalog no 020590

GTIN/EAN: 5906301815839

Load capacity 7.15 kg / 70.12 N Magnetic Induction 384.12 mT / 3841 Gs
length
22 mm [±0,1 mm]
Width
10 mm [±0,1 mm]
Height
6 mm [±0,1 mm]
Weight
9.9 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

technical details »

4.71 zł net / pcs

5.79 zł with VAT (23% VAT) / pcs

price for transport

bulk discounts:

Need more?
Quantity
Net
Gross
price from 1 pcs
4.71 zł
5.79 zł
price from 150 pcs
4.43 zł
5.45 zł
price from 550 pcs
4.14 zł
5.10 zł

Frequently asked questions

What pull rating should I choose for a workshop block magnet?
A catalogue pull rating is measured under stated test conditions. A painted or thin steel surface, a gap or a load acting along the surface can reduce the practical grip. Choose a margin based on the actual installation and read the product card.
Are block neodymium magnets available in more durable versions?
Sintered NdFeB is brittle and can corrode if its coating is damaged. Check the coating and operating-temperature limit of the selected product. A housing may help protect a magnet in an application exposed to impacts.
How should I choose block magnets for mounting a structure?
First check the steel grade and thickness, then any gap created by paint or dirt, and finally the direction of the applied load. Compare these conditions with the specifications of the selected magnet; do not rely on grade alone.

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.

Order by 14:00 and we’ll ship today!

Detailed specification - MPL 22x10x6 / N38 - lamellar magnet

Specification / characteristics - MPL 22x10x6 / N38 - lamellar magnet

properties
properties values
Cat. no. 020590
GTIN/EAN 5906301815839
Distributor Dhit sp. z o.o.
Country of origin Poland / China / Germany
Customs code 85059029
length 22 mm [±0,1 mm]
Width 10 mm [±0,1 mm]
Height 6 mm [±0,1 mm]
Weight 9.9 g
Magnetization Direction ↑ axial
Load capacity ~ ? 7.15 kg / 70.12 N
Magnetic Induction ~ ? 384.12 mT / 3841 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 22x10x6 / N38 - lamellar 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 magnet - report

These values are the direct effect of a physical simulation. Values were calculated on algorithms for the material Nd2Fe14B. Actual parameters might slightly differ. Please consider these calculations as a preliminary roadmap during assembly planning.

Table 1: Static force (force vs gap) - power drop
MPL 22x10x6 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 3839 Gs
383.9 mT
 7.15 kg / 15.76 lbs
7150.0 g / 70.1 N
 medium risk
1 mm 3321 Gs
332.1 mT
 5.35 kg / 11.79 lbs
5348.8 g / 52.5 N
 medium risk
2 mm 2798 Gs
279.8 mT
 3.80 kg / 8.37 lbs
3796.9 g / 37.2 N
 medium risk
3 mm 2324 Gs
232.4 mT
 2.62 kg / 5.78 lbs
2620.9 g / 25.7 N
 medium risk
5 mm 1588 Gs
158.8 mT
 1.22 kg / 2.70 lbs
1223.7 g / 12.0 N
 weak grip
10 mm 661 Gs
66.1 mT
 0.21 kg / 0.47 lbs
211.9 g / 2.1 N
 weak grip
15 mm 317 Gs
31.7 mT
 0.05 kg / 0.11 lbs
48.9 g / 0.5 N
 weak grip
20 mm 172 Gs
17.2 mT
 0.01 kg / 0.03 lbs
14.3 g / 0.1 N
 weak grip
30 mm 65 Gs
6.5 mT
 0.00 kg / 0.00 lbs
2.0 g / 0.0 N
 weak grip
50 mm 17 Gs
1.7 mT
 0.00 kg / 0.00 lbs
0.1 g / 0.0 N
 weak grip
Pulling power decreases significantly per each millimeter of gap. Keep in mind that every additional insulation layer (e.g., dirt, varnish, rust) significantly reduces the pull force. Magnetic products operate most effectively at the point of direct contact; distance nullifies the power. Analyze how rapidly the load capacity fall, when the magnet does not touch directly to the metal substrate. When designing the mounting, avoid unnecessary gaps.

Table 2: Vertical capacity (wall)
MPL 22x10x6 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Raw steel (µ ≈ 0.2) 1.43 kg / 3.15 lbs
1430.0 g / 14.0 N
1 mm Raw steel (µ ≈ 0.2) 1.07 kg / 2.36 lbs
1070.0 g / 10.5 N
2 mm Raw steel (µ ≈ 0.2) 0.76 kg / 1.68 lbs
760.0 g / 7.5 N
3 mm Raw steel (µ ≈ 0.2) 0.52 kg / 1.16 lbs
524.0 g / 5.1 N
5 mm Raw steel (µ ≈ 0.2) 0.24 kg / 0.54 lbs
244.0 g / 2.4 N
10 mm Raw steel (µ ≈ 0.2) 0.04 kg / 0.09 lbs
42.0 g / 0.4 N
15 mm Raw steel (µ ≈ 0.2) 0.01 kg / 0.02 lbs
10.0 g / 0.1 N
20 mm Raw steel (µ ≈ 0.2) 0.00 kg / 0.00 lbs
2.0 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
This section presents the approximate force necessary to start the slippage of the magnet down along a upright metal surface (considering standard friction). The holding force depends on the air gap between the magnet and the surface.

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MPL 22x10x6 / N38

Surface type Friction coefficient / % Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% of nominal force
2.15 kg / 4.73 lbs
2145.0 g / 21.0 N
Painted steel (standard)
µ = 0.2 20% of nominal force
1.43 kg / 3.15 lbs
1430.0 g / 14.0 N
Oily/slippery steel
µ = 0.1 10% of nominal force
0.72 kg / 1.58 lbs
715.0 g / 7.0 N
Magnet with anti-slip rubber
µ = 0.5 50% of nominal force
3.58 kg / 7.88 lbs
3575.0 g / 35.1 N
When placing a magnet on a upright wall (e.g., a board), it you can count on just about 20%-30% of its nominal power. Gravity and a weak degree of grip influence the fact that magnets move down faster than they pop off the substrate. Planning a vertical fastening? Remember that the sliding force is noticeably lower than the perpendicular breakaway force. On a smooth steel, the holder will slip down under a significantly smaller load. Using a rubber pad can significantly increase the grip.

Table 4: Material efficiency (substrate influence) - sheet metal selection
MPL 22x10x6 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.72 kg / 1.58 lbs
715.0 g / 7.0 N
1 mm
25%
 1.79 kg / 3.94 lbs
1787.5 g / 17.5 N
2 mm
50%
 3.58 kg / 7.88 lbs
3575.0 g / 35.1 N
3 mm
75%
 5.36 kg / 11.82 lbs
5362.5 g / 52.6 N
5 mm
100%
 7.15 kg / 15.76 lbs
7150.0 g / 70.1 N
10 mm
100%
 7.15 kg / 15.76 lbs
7150.0 g / 70.1 N
11 mm
100%
 7.15 kg / 15.76 lbs
7150.0 g / 70.1 N
12 mm
100%
 7.15 kg / 15.76 lbs
7150.0 g / 70.1 N
A thin sheet is not enough to take in the full magnetic flux, which weakens actual performance of the magnet. If you install a neodymium to a too thin substrate, the field will penetrate right through and the pull force will drop sharply. To achieve the maximum of this magnet's power, you need a suitably thick element of steel. The saturation phenomenon means that on sheet metal structures (e.g., thin profiles), the holder shows lower pull force. We recommend selecting the steel thickness based on the following data.

Table 5: Thermal stability (stability) - thermal limit
MPL 22x10x6 / N38

Magnet temperature (°C) Force change relative to 20°C Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 7.15 kg / 15.76 lbs
7150.0 g / 70.1 N
 Estimate
40 °C -4.4% 6.84 kg / 15.08 lbs
6838.9 g / 67.1 N
 Estimate
60 °C -8.6% 6.53 kg / 14.41 lbs
6534.6 g / 64.1 N
 Estimate
80 °C -12.8% 6.24 kg / 13.75 lbs
6237.3 g / 61.2 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) - forces in the system
MPL 22x10x6 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Sliding Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 19.99 kg / 44.08 lbs
5 155 Gs
3.00 kg / 6.61 lbs
2999 g / 29.4 N
 N/A
1 mm 17.45 kg / 38.46 lbs
7 173 Gs
2.62 kg / 5.77 lbs
2617 g / 25.7 N
 15.70 kg / 34.62 lbs
~0 Gs
2 mm 14.96 kg / 32.97 lbs
6 641 Gs
2.24 kg / 4.95 lbs
2243 g / 22.0 N
 13.46 kg / 29.68 lbs
~0 Gs
3 mm 12.66 kg / 27.91 lbs
6 111 Gs
1.90 kg / 4.19 lbs
1899 g / 18.6 N
 11.40 kg / 25.12 lbs
~0 Gs
5 mm 8.84 kg / 19.49 lbs
5 106 Gs
1.33 kg / 2.92 lbs
1326 g / 13.0 N
 7.96 kg / 17.54 lbs
~0 Gs
10 mm 3.42 kg / 7.54 lbs
3 177 Gs
0.51 kg / 1.13 lbs
513 g / 5.0 N
 3.08 kg / 6.79 lbs
~0 Gs
20 mm 0.59 kg / 1.31 lbs
1 322 Gs
0.09 kg / 0.20 lbs
89 g / 0.9 N
 0.53 kg / 1.18 lbs
~0 Gs
50 mm 0.01 kg / 0.03 lbs
204 Gs
0.00 kg / 0.00 lbs
2 g / 0.0 N
 0.01 kg / 0.03 lbs
~0 Gs
60 mm 0.01 kg / 0.01 lbs
130 Gs
0.00 kg / 0.00 lbs
1 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
70 mm 0.00 kg / 0.01 lbs
87 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
61 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
45 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
33 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
Two magnets attract each other from a much further distance than a magnet and steel setup. The connection of magnet-to-magnet produces a massive flux and a further horizon of action. Planning to create a solid fastener? Utilize two neodymiums instead of a neodymium and a striker plate. Be careful that when bringing together two magnets, the pinch force is huge. The levitation is a bit weaker than the attraction, but still large.
*Field value between like poles drops to ~0 Gs in the exact middle of the gap (caused by magnetic field nullification).
* Estimates refer to friction force of a pair of identical neodymium magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Axial field levels — not safety zones
MPL 22x10x6 / N38

Field level (Gs) mT Model distance (cm)
< 5 Gs < 0.5 mT 8.0 cm
< 10 Gs < 1.0 mT 6.5 cm
< 20 Gs < 2.0 mT 5.0 cm
< 40 Gs < 4.0 mT 4.0 cm
< 50 Gs < 5.0 mT 3.5 cm
< 400 Gs < 40.0 mT 1.5 cm
< 600 Gs < 60.0 mT 1.5 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: Dynamics (kinetic energy) - collision effects
MPL 22x10x6 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 22.93 km/h
(6.37 m/s)
 0.20 J
30 mm 23.34 km/h
(6.48 m/s)
 0.21 J
50 mm 23.34 km/h
(6.48 m/s)
 0.21 J
100 mm 23.35 km/h
(6.49 m/s)
 0.21 J
Neodymium magnets are delicate – a collision with steel risks their cracking. Control the attraction moment – a neodymium left loose becomes dangerous. Kinetic force can trigger coating fragments or injury to skin. Hold the magnet firmly during installation so it doesn't slam with momentum against the steel surface. A contact at a velocity of dozens of km/h ends with a crack of the magnet. Wear safety glasses when working with powerful specimens.

Table 9: Surface protection spec
MPL 22x10x6 / 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. Note the thickness of the protective layer.

Table 10: Electrical data (Pc)
MPL 22x10x6 / N38

Parameter Value SI Unit / Description
Magnetic Flux 8 320 Mx 83.2 µWb
Pc Coefficient 0.46 Low (Flat)
Total magnetic flux passing through the magnet pole. Key data when building generators as well as sensors. Pc value determines the working geometry.

Table 11: Submerged application
MPL 22x10x6 / N38

Environment Effective steel pull Effect
Air (land) 7.15 kg Standard
Water (riverbed) 8.19 kg
(+1.04 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!
The magnetic field penetrates through water without any losses. Buoyancy helps in lifting finds.

1. Shear force

*Warning: 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 weakens the holding force.

3. Thermal stability

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) = 0.46

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

Chemical composition

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

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: 020590-2026
Quick Unit Converter

Force (pull)

Field Strength

Insert data in any box, and the rest change instantly.

Other products

BM 950x180x75 [M10x4] - magnetic beam
Awaiting delivery Ships in 14 days

BM 950x180x75 [M10x4] - magnetic beam

9056.49 zł brutto / pcs
MW 5x15 / N38 - cylindrical magnet
Awaiting delivery Ships in 14 days

MW 5x15 / N38 - cylindrical magnet

0.935 zł brutto / pcs
MW 8x4 / N38 - cylindrical magnet
Awaiting delivery Ships in 14 days

MW 8x4 / N38 - cylindrical magnet

0.935 zł brutto / pcs
MW 38x3.5 / N38 - cylindrical magnet
Awaiting delivery Ships in 14 days

MW 38x3.5 / N38 - cylindrical magnet

12.21 zł brutto / pcs
This product is a very powerful plate magnet made of NdFeB material, which, with dimensions of 22x10x6 mm and a weight of 9.9 g, guarantees premium class connection. This rectangular block with a force of 70.12 N is ready for shipment in 24h, allowing for rapid realization of your project. The durable anti-corrosion layer ensures a long lifespan in a dry environment, protecting the core from oxidation.
Separating block magnets requires a technique based on sliding (moving one relative to the other), rather than forceful pulling apart. Watch your fingers! Magnets with a force of 7.15 kg can pinch very hard and cause hematomas. Never use metal tools for prying, as the brittle NdFeB material may chip and damage your eyes.
Plate magnets MPL 22x10x6 / N38 are the foundation for many industrial devices, such as magnetic separators and linear motors. Thanks to the flat surface and high force (approx. 7.15 kg), they are ideal as hidden locks in furniture making and mounting elements in automation. Customers often choose this model for workshop organization on strips and for advanced DIY and modeling projects, where precision and power count.
For mounting flat magnets MPL 22x10x6 / N38, we recommend utilizing strong epoxy glues (e.g., UHU Endfest, Distal), which ensure a durable bond with metal or plastic. Double-sided tape cushions vibrations, which is an advantage when mounting in moving elements. Avoid chemically aggressive glues or hot glue, which can demagnetize neodymium (above 80°C).
Standardly, the MPL 22x10x6 / N38 model is magnetized axially (dimension 6 mm), which means that the N and S poles are located on its largest, flat surfaces. In practice, this means that this magnet has the greatest attraction force on its main planes (22x10 mm), which is ideal for flat mounting. Such a pole arrangement ensures maximum holding capacity when pressing against the sheet, creating a closed magnetic circuit.
The presented product is a neodymium magnet with precisely defined parameters: 22 mm (length), 10 mm (width), and 6 mm (thickness). The key parameter here is the holding force amounting to approximately 7.15 kg (force ~70.12 N), which, with such a flat shape, proves the high grade of the material. The protective [NiCuNi] coating secures the magnet against corrosion.

Strengths as well as weaknesses of Nd2Fe14B magnets.

Benefits

Besides their durability, neodymium magnets are valued for these benefits:
  • Their magnetic field is durable, and after approximately 10 years it drops only by ~1% (according to research),
  • They feature excellent resistance to weakening of magnetic properties as a result of external fields,
  • By applying a decorative layer of nickel, the element gains an elegant look,
  • They are known for high magnetic induction at the operating surface, which affects their effectiveness,
  • Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
  • Thanks to flexibility in forming and the capacity to customize to client solutions,
  • Wide application in advanced technology sectors – they are used in computer drives, electric motors, medical equipment, also industrial machines.
  • Relatively small size with high pulling force – neodymium magnets offer high power in compact dimensions, which allows their use in compact constructions

Limitations

Disadvantages of NdFeB 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.
  • 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 secure oxidation as well as corrosion.
  • We suggest cover - magnetic holder, due to difficulties in realizing nuts inside the magnet and complicated forms.
  • Potential hazard resulting from small fragments of magnets pose a threat, in case of ingestion, which is particularly important in the context of child health protection. Additionally, small components of these devices are able to be problematic in diagnostics medical in case of swallowing.
  • With budget limitations the cost of neodymium magnets is a challenge,

Holding force characteristics

Maximum lifting force for a neodymium magnet – what affects it?

The load parameter shown refers to the limit force, recorded under optimal environment, specifically:
  • with the use of a yoke made of low-carbon steel, guaranteeing full magnetic saturation
  • with a thickness of at least 10 mm
  • with an ground touching surface
  • under conditions of gap-free contact (metal-to-metal)
  • under perpendicular application of breakaway force (90-degree angle)
  • at temperature room level

Magnet lifting force in use – key factors

In practice, the actual holding force depends on a number of factors, ranked from most significant:
  • Gap between surfaces – even a fraction of a millimeter of separation (caused e.g. by varnish or unevenness) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
  • Loading method – declared lifting capacity refers to detachment vertically. When applying parallel force, the magnet holds significantly lower power (typically approx. 20-30% of nominal force).
  • Metal thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field penetrates through instead of generating force.
  • Material type – the best choice is high-permeability steel. Stainless steels may generate lower lifting capacity.
  • Surface condition – ground elements ensure maximum contact, which increases field saturation. Rough surfaces weaken the grip.
  • Thermal factor – high temperature reduces pulling force. Exceeding the limit temperature can permanently damage the magnet.

Holding force was tested on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, in contrast under shearing force the lifting capacity is smaller. In addition, even a slight gap between the magnet’s surface and the plate decreases the lifting capacity.

H&S for magnets
Do not overheat magnets

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.

Finger safety

Watch your fingers. Two large magnets will snap together instantly with a force of massive weight, crushing anything in their path. Exercise extreme caution!

Fire risk

Mechanical processing of NdFeB material poses a fire risk. Neodymium dust reacts violently with oxygen and is hard to extinguish.

Magnetic media

Avoid bringing magnets near a wallet, computer, or TV. The magnetic field can destroy these devices and erase data from cards.

Magnet fragility

NdFeB magnets are sintered ceramics, meaning they are very brittle. Impact of two magnets leads to them shattering into small pieces.

Threat to navigation

Remember: rare earth magnets generate a field that interferes with precision electronics. Keep a safe distance from your phone, device, and GPS.

Powerful field

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

Life threat

Medical warning: Neodymium magnets can turn off pacemakers and defibrillators. Stay away if you have electronic implants.

Allergy Warning

Studies show that nickel (the usual finish) is a potent allergen. For allergy sufferers, prevent touching magnets with bare hands and choose encased magnets.

Choking Hazard

Adult use only. Tiny parts can be swallowed, leading to intestinal necrosis. Keep away from kids and pets.

Warning! Looking for details? Read our article: Why are neodymium magnets dangerous?