← previous
next →
Product available Ships today (order by 14:00) CO2 GPSR PPWR REACH

MPL 60x20x10 / N38 - lamellar magnet

lamellar magnet

Catalog no 020174

GTIN/EAN: 5906301811800

5.00
Load capacity 35.61 kg / 349.34 N Magnetic Induction 329.64 mT / 3296 Gs
length
60 mm [±0,1 mm]
Width
20 mm [±0,1 mm]
Height
10 mm [±0,1 mm]
Weight
90 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

view properties »

55.50 zł net / pcs

68.27 zł with VAT (23% VAT) / pcs

price for transport

bulk discounts:

Need more?
Quantity
Net
Gross
price from 1 pcs
55.50 zł
68.27 zł
price from 20 pcs
52.17 zł
64.17 zł
price from 50 pcs
48.84 zł
60.07 zł

Frequently asked questions

How much will a block magnet really hold?
The catalogue force is measured in full contact with smooth steel at least 10 mm thick, pulled perpendicular, at about 20 °C. On 1 mm sheet about 50% of that value remains, on 0.5 mm about 25%. Mounted on a vertical wall the realistic figure is 20–30%, because the load is then in shear rather than in tension.
What is the maximum working temperature?
Standard N-series grades up to 80 °C, and N50, N52 and N54 up to 60 °C. Above the maximum working temperature the loss stops being reversible. The Curie temperature, at which magnetic properties are lost completely, is about 310 °C.
What safety factor should I allow?
At least twice the mass of the item, and three to five times for vertical mounting. The margin covers sheet thickness, surface condition, any layer of paint or rust, and vibration.

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!

Technical - MPL 60x20x10 / N38 - lamellar magnet

Specification / characteristics - MPL 60x20x10 / N38 - lamellar magnet

properties
properties values
Cat. no. 020174
GTIN/EAN 5906301811800
Production/Distribution Dhit sp. z o.o.
ul. Zielona 14 05-850 Ożarów Mazowiecki PL
Country of origin Poland / China / Germany
Customs code 85059029
length 60 mm [±0,1 mm]
Width 20 mm [±0,1 mm]
Height 10 mm [±0,1 mm]
Weight 90 g
Magnetization Direction ↑ axial
Load capacity ~ ? 35.61 kg / 349.34 N
Magnetic Induction ~ ? 329.64 mT / 3296 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 60x20x10 / 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 analysis of the product - data

These values constitute the direct effect of a engineering analysis. Results rely on algorithms for the class Nd2Fe14B. Real-world parameters may deviate from the simulation results. Use these calculations as a reference point for designers.

Table 1: Static force (force vs distance) - interaction chart
MPL 60x20x10 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 3296 Gs
329.6 mT
 35.61 kg / 78.51 pounds
35610.0 g / 349.3 N
 crushing
1 mm 3087 Gs
308.7 mT
 31.25 kg / 68.89 pounds
31248.2 g / 306.5 N
 crushing
2 mm 2866 Gs
286.6 mT
 26.93 kg / 59.37 pounds
26929.3 g / 264.2 N
 crushing
3 mm 2643 Gs
264.3 mT
 22.90 kg / 50.48 pounds
22895.5 g / 224.6 N
 crushing
5 mm 2216 Gs
221.6 mT
 16.10 kg / 35.50 pounds
16103.3 g / 158.0 N
 crushing
10 mm 1397 Gs
139.7 mT
 6.40 kg / 14.11 pounds
6402.3 g / 62.8 N
 strong
15 mm 907 Gs
90.7 mT
 2.70 kg / 5.95 pounds
2697.7 g / 26.5 N
 strong
20 mm 615 Gs
61.5 mT
 1.24 kg / 2.73 pounds
1239.2 g / 12.2 N
 weak grip
30 mm 314 Gs
31.4 mT
 0.32 kg / 0.71 pounds
322.6 g / 3.2 N
 weak grip
50 mm 108 Gs
10.8 mT
 0.04 kg / 0.09 pounds
38.6 g / 0.4 N
 weak grip
Pulling power weakens sharply with every subsequent millimeter of distance. Note that every additional insulation layer (e.g., contamination, paint, dust) strongly diminishes the holding power. Neodymiums operate optimally in perfect adhesion; air break drastically cuts the force. Observe how rapidly the load capacity fall, when the product does not adhere flatly to the metal substrate. When designing the arrangement, eliminate redundant distances.

Table 2: Vertical hold (vertical surface)
MPL 60x20x10 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 7.12 kg / 15.70 pounds
7122.0 g / 69.9 N
1 mm Stal (~0.2) 6.25 kg / 13.78 pounds
6250.0 g / 61.3 N
2 mm Stal (~0.2) 5.39 kg / 11.87 pounds
5386.0 g / 52.8 N
3 mm Stal (~0.2) 4.58 kg / 10.10 pounds
4580.0 g / 44.9 N
5 mm Stal (~0.2) 3.22 kg / 7.10 pounds
3220.0 g / 31.6 N
10 mm Stal (~0.2) 1.28 kg / 2.82 pounds
1280.0 g / 12.6 N
15 mm Stal (~0.2) 0.54 kg / 1.19 pounds
540.0 g / 5.3 N
20 mm Stal (~0.2) 0.25 kg / 0.55 pounds
248.0 g / 2.4 N
30 mm Stal (~0.2) 0.06 kg / 0.14 pounds
64.0 g / 0.6 N
50 mm Stal (~0.2) 0.01 kg / 0.02 pounds
8.0 g / 0.1 N
The table below calculates the theoretical shear load sufficient to cause the sliding of the magnet downwards against a vertical metal surface (considering typical friction coefficient). This parameter varies with the distance between the magnet and the metal.

Table 3: Vertical assembly (sliding) - vertical pull
MPL 60x20x10 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
10.68 kg / 23.55 pounds
10683.0 g / 104.8 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
7.12 kg / 15.70 pounds
7122.0 g / 69.9 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
3.56 kg / 7.85 pounds
3561.0 g / 34.9 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
17.81 kg / 39.25 pounds
17805.0 g / 174.7 N
When mounting a holder on a vertical plane (e.g., a car body), it you can count on barely approx. 1/5 of its maximum pull force. Gravity as well as a weak degree of grip cause that magnets move down easier than they pop off the substrate. Planning a vertical fastening? Consider that the sliding force is significantly lower than the perpendicular breakaway force. On a slippery surface, the magnet will give way down under a significantly smaller weight. Using a rubber coating can significantly improve the result.

Table 4: Steel thickness (saturation) - sheet metal selection
MPL 60x20x10 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
5%
 1.78 kg / 3.93 pounds
1780.5 g / 17.5 N
1 mm
13%
 4.45 kg / 9.81 pounds
4451.3 g / 43.7 N
2 mm
25%
 8.90 kg / 19.63 pounds
8902.5 g / 87.3 N
3 mm
38%
 13.35 kg / 29.44 pounds
13353.8 g / 131.0 N
5 mm
63%
 22.26 kg / 49.07 pounds
22256.3 g / 218.3 N
10 mm
100%
 35.61 kg / 78.51 pounds
35610.0 g / 349.3 N
11 mm
100%
 35.61 kg / 78.51 pounds
35610.0 g / 349.3 N
12 mm
100%
 35.61 kg / 78.51 pounds
35610.0 g / 349.3 N
A thin sheet is incapable of focus the full magnetic flux, which squanders power of the magnet. Should you mount a strong magnet to a thin surface, the flux will penetrate right through and the holding will be smaller. To utilize full efficiency of this neodymium's potential, you need a suitably thick element of metal. The saturation phenomenon causes that on sheet metal structures (e.g., car bodies), the magnet holds weaker. We advise picking the steel dimension based on the following data.

Table 5: Thermal resistance (stability) - thermal limit
MPL 60x20x10 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 35.61 kg / 78.51 pounds
35610.0 g / 349.3 N
 OK
40 °C -2.2% 34.83 kg / 76.78 pounds
34826.6 g / 341.6 N
 OK
60 °C -4.4% 34.04 kg / 75.05 pounds
34043.2 g / 334.0 N
80 °C -6.6% 33.26 kg / 73.33 pounds
33259.7 g / 326.3 N
100 °C -28.8% 25.35 kg / 55.90 pounds
25354.3 g / 248.7 N
Classic neodymiums lose strength after exceeding the maximum temperature. Protect against heat – high temperature can permanently destroy this product. With increasing heat, the magnet's capacity temporarily lowers. Do not use this product close to ovens higher than its operating temperature limit. Exceeding the critical threshold will cause permanent loss of magnetic properties.
*Technical advisory: Thermal stability is determined by both grade, as well as the dimension ratios. Low-profile magnets (low permeance coefficient) may lose charge permanently at lower temperatures than taller cylinders. Warning indicator in the table points to permanent field degradation for this specific geometry.

Table 6: Two magnets (repulsion) - field range
MPL 60x20x10 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 80.35 kg / 177.15 pounds
4 692 Gs
12.05 kg / 26.57 pounds
12053 g / 118.2 N
 N/A
1 mm 75.49 kg / 166.43 pounds
6 389 Gs
11.32 kg / 24.96 pounds
11324 g / 111.1 N
 67.94 kg / 149.79 pounds
~0 Gs
2 mm 70.51 kg / 155.45 pounds
6 174 Gs
10.58 kg / 23.32 pounds
10577 g / 103.8 N
 63.46 kg / 139.90 pounds
~0 Gs
3 mm 65.58 kg / 144.58 pounds
5 955 Gs
9.84 kg / 21.69 pounds
9837 g / 96.5 N
 59.02 kg / 130.12 pounds
~0 Gs
5 mm 56.11 kg / 123.71 pounds
5 508 Gs
8.42 kg / 18.56 pounds
8417 g / 82.6 N
 50.50 kg / 111.34 pounds
~0 Gs
10 mm 36.34 kg / 80.11 pounds
4 432 Gs
5.45 kg / 12.02 pounds
5450 g / 53.5 N
 32.70 kg / 72.10 pounds
~0 Gs
20 mm 14.45 kg / 31.85 pounds
2 795 Gs
2.17 kg / 4.78 pounds
2167 g / 21.3 N
 13.00 kg / 28.66 pounds
~0 Gs
50 mm 1.38 kg / 3.05 pounds
865 Gs
0.21 kg / 0.46 pounds
208 g / 2.0 N
 1.25 kg / 2.75 pounds
~0 Gs
60 mm 0.73 kg / 1.60 pounds
627 Gs
0.11 kg / 0.24 pounds
109 g / 1.1 N
 0.66 kg / 1.44 pounds
~0 Gs
70 mm 0.40 kg / 0.89 pounds
467 Gs
0.06 kg / 0.13 pounds
60 g / 0.6 N
 0.36 kg / 0.80 pounds
~0 Gs
80 mm 0.23 kg / 0.51 pounds
355 Gs
0.03 kg / 0.08 pounds
35 g / 0.3 N
 0.21 kg / 0.46 pounds
~0 Gs
90 mm 0.14 kg / 0.31 pounds
275 Gs
0.02 kg / 0.05 pounds
21 g / 0.2 N
 0.13 kg / 0.28 pounds
~0 Gs
100 mm 0.09 kg / 0.19 pounds
217 Gs
0.01 kg / 0.03 pounds
13 g / 0.1 N
 0.08 kg / 0.17 pounds
~0 Gs
Two magnetic products interact from a much further distance than a neodymium and metal setup. Such a system of two magnets produces a massive flux and a wider radius of performance. Want to build a powerful holder? Utilize two neodymiums instead of one magnet and a striker plate. Remember that when connecting a pair of magnets, the collision energy is massive. The levitation is slightly lower than the connection force, but still significant.
*Field value in repulsion mode reaches ~0 Gs at the geometric center between the magnets (due to field cancellation).
Note: Calculations apply to friction force of two matching magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Safety (HSE) (electronics) - warnings
MPL 60x20x10 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 16.5 cm
Hearing aid 10 Gs (1.0 mT) 13.0 cm
Timepiece 20 Gs (2.0 mT) 10.0 cm
Mobile device 40 Gs (4.0 mT) 8.0 cm
Remote 50 Gs (5.0 mT) 7.0 cm
Payment card 400 Gs (40.0 mT) 3.0 cm
HDD hard drive 600 Gs (60.0 mT) 2.5 cm
Powerful magnet radiation poses a large risk to IT equipment and pacemakers. These neodymiums generate a flux that disrupts operation of sensitive medical devices. Remember: the unseen radiation acts through matter and housings. Special caution must be taken by people with cochlear implants and insulin pumps. The risk also applies to: automatic timepieces, car keys, membranes, and screens. Avoid contact with magnetic cards, HDD media, or precise measuring instruments.

Table 8: Impact energy (kinetic energy) - collision effects
MPL 60x20x10 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 22.47 km/h
(6.24 m/s)
 1.75 J
30 mm 24.71 km/h
(6.86 m/s)
 2.12 J
50 mm 24.85 km/h
(6.90 m/s)
 2.14 J
100 mm 24.88 km/h
(6.91 m/s)
 2.15 J
Magnetic elements are delicate – a violent impact against metal causes immediate chipping. Watch the impact speed – a magnet released freely speeds with massive force. Striking energy can cause material chips or injury to skin. Always hold the magnet during installation so it doesn't slam with momentum against the steel surface. A collision at high speed almost guarantees destruction of the neodymium. Wear eye protection when playing with large magnets.

Table 9: Corrosion resistance
MPL 60x20x10 / 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 following table defines the conditions under which this product can be safely used. Note the thickness of the protective layer.

Table 10: Construction data (Pc)
MPL 60x20x10 / N38

Parameter Value SI Unit / Description
Magnetic Flux 37 480 Mx 374.8 µWb
Pc Coefficient 0.35 Low (Flat)
Flux value emitted by the magnet pole. Essential parameter when building generators as well as sensors. Pc value defines the working geometry.

Table 11: Hydrostatics and buoyancy
MPL 60x20x10 / N38

Environment Effective steel pull Effect
Air (land) 35.61 kg Standard
Water (riverbed) 40.77 kg
(+5.16 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!
In water, the magnet feels stronger thanks to Archimedes' principle. However, remember the water resistance when pulling the rope quickly.

1. Sliding resistance

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

2. Steel thickness impact

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

3. Temperature resistance

*For N38 material, the critical limit is 80°C.

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.35

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 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.

Technical and environmental data

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%

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: 020174-2026
Measurement Calculator

Force (pull)

Magnetic Induction

Just complete any input, and the converter fill in everything else instantly.

Other products

BM 750x180x70 [4x M8] - magnetic beam
Product available Ships today (order by 14:00)

BM 750x180x70 [4x M8] - magnetic beam

6914.94 zł brutto / pcs
MPL 50x20x20 / N38 - lamellar magnet
Product available Ships today (order by 14:00)

MPL 50x20x20 / N38 - lamellar magnet

47.32 zł brutto / pcs
SM 32x300 [2xM8] / N42 - magnetic separator
Product available Ships today (order by 14:00)

SM 32x300 [2xM8] / N42 - magnetic separator

1020.90 zł brutto / pcs
SM 32x425 [2xM8] / N52 - magnetic separator
Product available Ships today (order by 14:00)

SM 32x425 [2xM8] / N52 - magnetic separator

1463.70 zł brutto / pcs
Model MPL 60x20x10 / N38 features a low profile and professional pulling force, making it a perfect solution for building separators and machines. This rectangular block with a force of 349.34 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 strong flat magnets requires a technique based on sliding (moving one relative to the other), rather than forceful pulling apart. To separate the MPL 60x20x10 / N38 model, firmly slide one magnet over the edge of the other until the attraction force decreases. We recommend care, because after separation, the magnets may want to violently snap back together, which threatens pinching the skin. Using a screwdriver risks destroying the coating and permanently cracking the magnet.
Plate magnets MPL 60x20x10 / N38 are the foundation for many industrial devices, such as magnetic separators and linear motors. They work great as fasteners under tiles, wood, or glass. Customers often choose this model for hanging tools on strips and for advanced DIY and modeling projects, where precision and power count.
Cyanoacrylate glues (super glue type) are good only for small magnets; for larger plates, we recommend resins. Double-sided tape cushions vibrations, which is an advantage when mounting in moving elements. Remember to roughen and wash the magnet surface before gluing, which significantly increases the adhesion of the glue to the nickel coating.
The magnetic axis runs through the shortest dimension, which is typical for gripper magnets. Thanks to this, it works best when "sticking" to sheet metal or another magnet with a large surface area. This is the most popular configuration for block magnets used in separators and holders.
This model is characterized by dimensions 60x20x10 mm, which, at a weight of 90 g, makes it an element with impressive energy density. The key parameter here is the lifting capacity amounting to approximately 35.61 kg (force ~349.34 N), which, with such a compact shape, proves the high power of the material. The protective [NiCuNi] coating secures the magnet against corrosion.

Advantages and disadvantages of Nd2Fe14B magnets.

Advantages

Besides their high retention, neodymium magnets are valued for these benefits:
  • They have constant strength, and over around ten years their attraction force decreases symbolically – ~1% (in testing),
  • They maintain their magnetic properties even under external field action,
  • In other words, due to the shiny layer of silver, the element looks attractive,
  • They show high magnetic induction at the operating surface, making them more effective,
  • Thanks to resistance to high temperature, they are capable of working (depending on the shape) even at temperatures up to 230°C and higher...
  • Possibility of custom machining as well as modifying to precise applications,
  • Versatile presence in innovative solutions – they are used in hard drives, brushless drives, medical equipment, as well as complex engineering applications.
  • Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in compact dimensions, which makes them useful in compact constructions

Disadvantages

Cons of neodymium magnets: weaknesses and usage proposals
  • They are fragile upon heavy impacts. To avoid cracks, it is worth securing magnets using a steel holder. Such protection not only protects the magnet but also improves its resistance to damage
  • We warn that neodymium magnets can lose their power at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
  • Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material immune to moisture, in case of application outdoors
  • We suggest a housing - magnetic mount, due to difficulties in creating threads inside the magnet and complex shapes.
  • Possible danger to health – tiny shards of magnets are risky, if swallowed, which gains importance in the context of child safety. It is also worth noting that small components of these devices can complicate diagnosis medical after entering the body.
  • Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Pull force analysis

Maximum lifting capacity of the magnet – what it depends on?

Breakaway force was defined for ideal contact conditions, assuming:
  • on a base made of mild steel, optimally conducting the magnetic flux
  • whose transverse dimension is min. 10 mm
  • with a plane cleaned and smooth
  • without any insulating layer between the magnet and steel
  • for force applied at a right angle (in the magnet axis)
  • at standard ambient temperature

Impact of factors on magnetic holding capacity in practice

Please note that the application force may be lower depending on elements below, in order of importance:
  • Clearance – existence of any layer (rust, tape, gap) interrupts the magnetic circuit, which lowers power steeply (even by 50% at 0.5 mm).
  • Force direction – catalog parameter refers to pulling vertically. When slipping, the magnet exhibits much less (often approx. 20-30% of nominal force).
  • Element thickness – to utilize 100% power, the steel must be adequately massive. Thin sheet restricts the attraction force (the magnet "punches through" it).
  • Material type – ideal substrate is high-permeability steel. Cast iron may have worse magnetic properties.
  • Plate texture – smooth surfaces ensure maximum contact, which improves force. Rough surfaces reduce efficiency.
  • Thermal environment – temperature increase results in weakening of induction. It is worth remembering the thermal limit for a given model.

Lifting capacity testing was carried out on plates with a smooth surface of suitable thickness, under perpendicular forces, whereas under shearing force the lifting capacity is smaller. In addition, even a small distance between the magnet’s surface and the plate decreases the load capacity.

Safe handling of NdFeB magnets
No play value

Absolutely keep magnets away from children. Risk of swallowing is high, and the effects of magnets connecting inside the body are fatal.

Finger safety

Risk of injury: The attraction force is so great that it can result in blood blisters, pinching, and broken bones. Use thick gloves.

Risk of cracking

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

Conscious usage

Before use, check safety instructions. Sudden snapping can destroy the magnet or hurt your hand. Think ahead.

Combustion hazard

Machining of NdFeB material poses a fire risk. Neodymium dust oxidizes rapidly with oxygen and is difficult to extinguish.

Compass and GPS

Navigation devices and smartphones are highly susceptible to magnetism. Close proximity with a powerful NdFeB magnet can permanently damage the internal compass in your phone.

Medical interference

Patients with a pacemaker have to maintain an large gap from magnets. The magnetism can disrupt the functioning of the life-saving device.

Magnetic media

Equipment safety: Neodymium magnets can damage payment cards and sensitive devices (pacemakers, medical aids, mechanical watches).

Demagnetization risk

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

Avoid contact if allergic

A percentage of the population have a contact allergy to nickel, which is the typical protective layer for NdFeB magnets. Frequent touching can result in dermatitis. We suggest use protective gloves.

Security! Details about risks in the article: Magnet Safety Guide.