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

MPL 50x50x10 / N38 - lamellar magnet

lamellar magnet

Catalog no 020167

GTIN/EAN: 5906301811732

5.00
Load capacity 33.73 kg / 330.92 N Magnetic Induction 209.75 mT / 2097 Gs
length
50 mm [±0,1 mm]
Width
50 mm [±0,1 mm]
Height
10 mm [±0,1 mm]
Weight
187.5 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

product details »

34.86 zł net / pcs

42.88 zł with VAT (23% VAT) / pcs

price for transport

bulk discounts:

Need more?
Quantity
Net
Gross
price from 1 pcs
34.86 zł
42.88 zł
price from 20 pcs
32.77 zł
40.31 zł
price from 80 pcs
30.68 zł
37.73 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!

Physical properties - MPL 50x50x10 / N38 - lamellar magnet

Specification / characteristics - MPL 50x50x10 / N38 - lamellar magnet

properties
properties values
Cat. no. 020167
GTIN/EAN 5906301811732
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 50 mm [±0,1 mm]
Width 50 mm [±0,1 mm]
Height 10 mm [±0,1 mm]
Weight 187.5 g
Magnetization Direction ↑ axial
Load capacity ~ ? 33.73 kg / 330.92 N
Magnetic Induction ~ ? 209.75 mT / 2097 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 50x50x10 / N38 - lamellar 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 assembly - report

Presented data are the outcome of a physical simulation. Results were calculated on models for the class Nd2Fe14B. Real-world parameters may deviate from the simulation results. Treat these data as a reference point when designing systems.

Table 1: Static pull force (force vs gap) - interaction chart
MPL 50x50x10 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 2097 Gs
209.7 mT
 33.73 kg / 74.36 lbs
33730.0 g / 330.9 N
 dangerous!
1 mm 2056 Gs
205.6 mT
 32.43 kg / 71.50 lbs
32430.0 g / 318.1 N
 dangerous!
2 mm 2009 Gs
200.9 mT
 30.96 kg / 68.27 lbs
30964.6 g / 303.8 N
 dangerous!
3 mm 1957 Gs
195.7 mT
 29.38 kg / 64.77 lbs
29380.4 g / 288.2 N
 dangerous!
5 mm 1841 Gs
184.1 mT
 25.99 kg / 57.30 lbs
25992.3 g / 255.0 N
 dangerous!
10 mm 1514 Gs
151.4 mT
 17.58 kg / 38.75 lbs
17577.6 g / 172.4 N
 dangerous!
15 mm 1194 Gs
119.4 mT
 10.93 kg / 24.10 lbs
10931.8 g / 107.2 N
 dangerous!
20 mm 922 Gs
92.2 mT
 6.51 kg / 14.36 lbs
6512.2 g / 63.9 N
 medium risk
30 mm 543 Gs
54.3 mT
 2.26 kg / 4.98 lbs
2260.0 g / 22.2 N
 medium risk
50 mm 209 Gs
20.9 mT
 0.33 kg / 0.74 lbs
334.1 g / 3.3 N
 weak grip
Magnetic force weakens drastically with every mm of gap. Note that even a microscopic distance (e.g., dirt, paint, dust) strongly diminishes the holding power. Magnetic products work strongest in perfect adhesion; gap kills the power. Observe how flashily the load capacity drop, when the product does not adhere flatly to the steel surface. When calculating the mounting, avoid additional spacers.

Table 2: Slippage capacity (vertical surface)
MPL 50x50x10 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 6.75 kg / 14.87 lbs
6746.0 g / 66.2 N
1 mm Stal (~0.2) 6.49 kg / 14.30 lbs
6486.0 g / 63.6 N
2 mm Stal (~0.2) 6.19 kg / 13.65 lbs
6192.0 g / 60.7 N
3 mm Stal (~0.2) 5.88 kg / 12.95 lbs
5876.0 g / 57.6 N
5 mm Stal (~0.2) 5.20 kg / 11.46 lbs
5198.0 g / 51.0 N
10 mm Stal (~0.2) 3.52 kg / 7.75 lbs
3516.0 g / 34.5 N
15 mm Stal (~0.2) 2.19 kg / 4.82 lbs
2186.0 g / 21.4 N
20 mm Stal (~0.2) 1.30 kg / 2.87 lbs
1302.0 g / 12.8 N
30 mm Stal (~0.2) 0.45 kg / 1.00 lbs
452.0 g / 4.4 N
50 mm Stal (~0.2) 0.07 kg / 0.15 lbs
66.0 g / 0.6 N
The table below shows the approximate force needed to start the slippage of the magnet down on a vertical steel plate (assuming typical friction). This value is a function of the distance between the magnet and the metal.

Table 3: Wall mounting (sliding) - vertical pull
MPL 50x50x10 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
10.12 kg / 22.31 lbs
10119.0 g / 99.3 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
6.75 kg / 14.87 lbs
6746.0 g / 66.2 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
3.37 kg / 7.44 lbs
3373.0 g / 33.1 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
16.87 kg / 37.18 lbs
16865.0 g / 165.4 N
When placing a magnet on a vertical wall (e.g., a fridge), it will only hold only approx. 1/5 of its maximum pull force. Gravity as well as a low friction coefficient influence the fact that holders slide down easier than they detach. Designing a hanger? Consider that the shear force is noticeably lower than the perpendicular breakaway force. On a slippery surface, the magnet will give way down under a much lighter load. Using a rubber layer can effectively raise the stability.

Table 4: Steel thickness (saturation) - power losses
MPL 50x50x10 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
5%
 1.69 kg / 3.72 lbs
1686.5 g / 16.5 N
1 mm
13%
 4.22 kg / 9.30 lbs
4216.3 g / 41.4 N
2 mm
25%
 8.43 kg / 18.59 lbs
8432.5 g / 82.7 N
3 mm
38%
 12.65 kg / 27.89 lbs
12648.8 g / 124.1 N
5 mm
63%
 21.08 kg / 46.48 lbs
21081.2 g / 206.8 N
10 mm
100%
 33.73 kg / 74.36 lbs
33730.0 g / 330.9 N
11 mm
100%
 33.73 kg / 74.36 lbs
33730.0 g / 330.9 N
12 mm
100%
 33.73 kg / 74.36 lbs
33730.0 g / 330.9 N
A thin sheet is not enough to conduct the entire magnetic field, which weakens actual performance of the magnet. Should you attach a powerful product to a weak sheet, the magnetism will penetrate right through and the attraction force will be weaker. To achieve the maximum of this neodymium's power, you require a sufficiently solid piece of metal. The material oversaturation causes that on delicate walls (e.g., car bodies), the magnet holds weaker. We suggest choosing the steel thickness based on the following data.

Table 5: Thermal stability (stability) - resistance threshold
MPL 50x50x10 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 33.73 kg / 74.36 lbs
33730.0 g / 330.9 N
 OK
40 °C -2.2% 32.99 kg / 72.73 lbs
32987.9 g / 323.6 N
 OK
60 °C -4.4% 32.25 kg / 71.09 lbs
32245.9 g / 316.3 N
80 °C -6.6% 31.50 kg / 69.45 lbs
31503.8 g / 309.1 N
100 °C -28.8% 24.02 kg / 52.95 lbs
24015.8 g / 235.6 N
Ordinary NdFeB products change their properties parameters past the thermal threshold. Avoid high temperatures – heat can irreversibly demagnetize this product. With every degree above norm, the neodymium's force momentarily drops. Refrain from using this product near heat sources higher than its working range. Exceeding the critical threshold will cause destruction of magnetic properties.
*Important note: Temperature resistance is determined by both grade, as well as the dimension ratios. Flat magnets (pancake types) risk losing magnetic properties at lower temperatures than long magnets. Red status in the table indicates permanent field degradation for this particular item.

Table 6: Magnet-Magnet interaction (repulsion) - forces in the system
MPL 50x50x10 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Strength (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 67.80 kg / 149.46 lbs
3 611 Gs
10.17 kg / 22.42 lbs
10169 g / 99.8 N
 N/A
1 mm 66.54 kg / 146.70 lbs
4 156 Gs
9.98 kg / 22.01 lbs
9982 g / 97.9 N
 59.89 kg / 132.03 lbs
~0 Gs
2 mm 65.18 kg / 143.70 lbs
4 113 Gs
9.78 kg / 21.56 lbs
9777 g / 95.9 N
 58.66 kg / 129.33 lbs
~0 Gs
3 mm 63.74 kg / 140.53 lbs
4 067 Gs
9.56 kg / 21.08 lbs
9562 g / 93.8 N
 57.37 kg / 126.48 lbs
~0 Gs
5 mm 60.67 kg / 133.75 lbs
3 968 Gs
9.10 kg / 20.06 lbs
9101 g / 89.3 N
 54.60 kg / 120.38 lbs
~0 Gs
10 mm 52.24 kg / 115.18 lbs
3 682 Gs
7.84 kg / 17.28 lbs
7836 g / 76.9 N
 47.02 kg / 103.66 lbs
~0 Gs
20 mm 35.33 kg / 77.89 lbs
3 028 Gs
5.30 kg / 11.68 lbs
5299 g / 52.0 N
 31.80 kg / 70.10 lbs
~0 Gs
50 mm 7.69 kg / 16.96 lbs
1 413 Gs
1.15 kg / 2.54 lbs
1154 g / 11.3 N
 6.92 kg / 15.26 lbs
~0 Gs
60 mm 4.54 kg / 10.01 lbs
1 086 Gs
0.68 kg / 1.50 lbs
681 g / 6.7 N
 4.09 kg / 9.01 lbs
~0 Gs
70 mm 2.72 kg / 6.01 lbs
841 Gs
0.41 kg / 0.90 lbs
409 g / 4.0 N
 2.45 kg / 5.41 lbs
~0 Gs
80 mm 1.67 kg / 3.68 lbs
658 Gs
0.25 kg / 0.55 lbs
250 g / 2.5 N
 1.50 kg / 3.31 lbs
~0 Gs
90 mm 1.05 kg / 2.31 lbs
521 Gs
0.16 kg / 0.35 lbs
157 g / 1.5 N
 0.94 kg / 2.08 lbs
~0 Gs
100 mm 0.67 kg / 1.48 lbs
417 Gs
0.10 kg / 0.22 lbs
101 g / 1.0 N
 0.60 kg / 1.33 lbs
~0 Gs
Two magnetic products interact from a wider radius than a magnet and steel setup. The setup of magnet-to-magnet produces a massive flux and a wider radius of action. Want to build a solid fastener? Apply two magnets instead of one magnet and a steel. Be careful that when connecting a pair of magnets, the collision energy is huge. The levitation is a bit weaker than the connection force, but still impressive.
*The magnetic induction for N-N configuration drops to ~0 Gs at the midpoint between the magnets (caused by magnetic field nullification).
* Estimates apply to friction force of two matching magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Safety (HSE) (electronics) - precautionary measures
MPL 50x50x10 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 21.0 cm
Hearing aid 10 Gs (1.0 mT) 16.5 cm
Mechanical watch 20 Gs (2.0 mT) 13.0 cm
Phone / Smartphone 40 Gs (4.0 mT) 10.0 cm
Car key 50 Gs (5.0 mT) 9.5 cm
Payment card 400 Gs (40.0 mT) 4.0 cm
HDD hard drive 600 Gs (60.0 mT) 3.0 cm
Extremely neodym field is a large risk to electronic devices and pacemakers. These magnets produce a flux that destroys function of sensitive medical devices. Remember: the unseen radiation acts through matter and housings. Special caution must be taken by people with hearing aids and drug dispensers. The risk also applies to: automatic timepieces, remotes, membranes, and displays. Avoid contact with magnetic cards, HDD media, or sensitive navigation tools.

Table 8: Impact energy (cracking risk) - collision effects
MPL 50x50x10 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 18.75 km/h
(5.21 m/s)
 2.54 J
30 mm 23.65 km/h
(6.57 m/s)
 4.05 J
50 mm 24.20 km/h
(6.72 m/s)
 4.24 J
100 mm 24.32 km/h
(6.76 m/s)
 4.28 J
Neodymium magnets are prone to chipping – a collision with steel risks their cracking. Control the attraction moment – a magnet released freely speeds with massive force. Striking energy can cause material chips or dangerous crushing 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 neodymium. Wear eye protection when handling with large magnets.

Table 9: Anti-corrosion coating durability
MPL 50x50x10 / 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: Construction data (Pc)
MPL 50x50x10 / N38

Parameter Value SI Unit / Description
Magnetic Flux 61 501 Mx 615.0 µWb
Pc Coefficient 0.26 Low (Flat)
Flux value emitted by the magnet pole. Key data when building generators as well as sensors. Pc value defines the working geometry.

Table 11: Physics of underwater searching
MPL 50x50x10 / N38

Environment Effective steel pull Effect
Air (land) 33.73 kg Standard
Water (riverbed) 38.62 kg
(+4.89 kg buoyancy gain)
+14.5%
Rust risk: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.
Contrary to myths, water does not block the magnetic field. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Shear force

*Caution: On a vertical surface, the magnet retains merely a fraction of its perpendicular strength.

2. Steel saturation

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

3. Power loss vs temp

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

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.26

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.

Technical and environmental data

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: 020167-2026
Measurement Calculator

Magnet pull force

Magnetic Induction

Put your value in just one slot to get results for all other units at once.

View more products

UMGZ 16x13x5 [M4] GZ / N38 - magnetic holder external thread
Product available Ships today (order by 14:00)

UMGZ 16x13x5 [M4] GZ / N38 - magnetic holder external thread

3.89 zł brutto / pcs
MP 40x22x10 / N38 - ring magnet
Product available Ships today (order by 14:00)

MP 40x22x10 / N38 - ring magnet

40.59 zł brutto / pcs
SM 25x250 [2xM8] / N52 - magnetic separator
Product available Ships today (order by 14:00)

SM 25x250 [2xM8] / N52 - magnetic separator

762.60 zł brutto / pcs
MPL 30x10x8 / N38 - lamellar magnet
Product available Ships today (order by 14:00)

MPL 30x10x8 / N38 - lamellar magnet

10.71 zł brutto / pcs
Component MPL 50x50x10 / N38 features a flat shape and professional pulling force, making it an ideal solution for building separators and machines. This rectangular block with a force of 330.92 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.
The key to success is shifting the magnets along their largest connection plane (using e.g., the edge of a table), which is easier than trying to tear them apart directly. Watch your fingers! Magnets with a force of 33.73 kg can pinch very hard and cause hematomas. Using a screwdriver risks destroying the coating and permanently cracking the magnet.
Plate magnets MPL 50x50x10 / N38 are the foundation for many industrial devices, such as magnetic separators and linear motors. Thanks to the flat surface and high force (approx. 33.73 kg), they are ideal as closers in furniture making and mounting elements in automation. Their rectangular shape facilitates precise gluing into milled sockets in wood or plastic.
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.
Standardly, the MPL 50x50x10 / N38 model is magnetized axially (dimension 10 mm), which means that the N and S poles are located on its largest, flat surfaces. Thanks to this, it works best when "sticking" to sheet metal or another magnet with a large surface area. Such a pole arrangement ensures maximum holding capacity when pressing against the sheet, creating a closed magnetic circuit.
This model is characterized by dimensions 50x50x10 mm, which, at a weight of 187.5 g, makes it an element with high energy density. The key parameter here is the holding force amounting to approximately 33.73 kg (force ~330.92 N), which, with such a compact shape, proves the high power of the material. The product meets the standards for N38 grade magnets.

Advantages and disadvantages of rare earth magnets.

Advantages

In addition to their long-term stability, neodymium magnets provide the following advantages:
  • Their power is maintained, and after approximately 10 years it decreases only by ~1% (theoretically),
  • Neodymium magnets prove to be exceptionally resistant to magnetic field loss caused by external interference,
  • A magnet with a shiny gold surface has an effective appearance,
  • The surface of neodymium magnets generates a maximum magnetic field – this is one of their assets,
  • Through (appropriate) combination of ingredients, they can achieve high thermal resistance, allowing for action at temperatures reaching 230°C and above...
  • Due to the possibility of accurate molding and adaptation to specialized solutions, NdFeB magnets can be produced in a wide range of forms and dimensions, which increases their versatility,
  • Significant place in modern industrial fields – they are used in hard drives, drive modules, precision medical tools, also technologically advanced constructions.
  • Compactness – despite small sizes they generate large force, making them ideal for precision applications

Cons

Disadvantages of NdFeB magnets:
  • At very strong impacts they can break, therefore we advise placing them in steel cases. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
  • Neodymium magnets demagnetize 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
  • When exposed to humidity, magnets usually rust. To use them in conditions outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation as well as corrosion.
  • We suggest cover - magnetic mechanism, due to difficulties in realizing threads inside the magnet and complex shapes.
  • Potential hazard resulting from small fragments of magnets pose a threat, when accidentally swallowed, which gains importance in the aspect of protecting the youngest. It is also worth noting that small components of these magnets are able to be problematic in diagnostics medical in case of swallowing.
  • With budget limitations the cost of neodymium magnets can be a barrier,

Lifting parameters

Optimal lifting capacity of a neodymium magnet – what affects it?

The lifting capacity listed is a measurement result conducted under standard conditions:
  • on a block made of mild steel, optimally conducting the magnetic flux
  • with a thickness minimum 10 mm
  • with an ground touching surface
  • with direct contact (without impurities)
  • during detachment in a direction perpendicular to the mounting surface
  • at temperature approx. 20 degrees Celsius

Lifting capacity in real conditions – factors

It is worth knowing that the application force may be lower influenced by elements below, starting with the most relevant:
  • Gap between surfaces – every millimeter of separation (caused e.g. by varnish or unevenness) drastically reduces the pulling force, often by half at just 0.5 mm.
  • Direction of force – maximum parameter is available only during perpendicular pulling. The force required to slide of the magnet along the plate is usually several times smaller (approx. 1/5 of the lifting capacity).
  • Wall thickness – the thinner the sheet, the weaker the hold. Magnetic flux penetrates through instead of converting into lifting capacity.
  • Material composition – not every steel attracts identically. Alloy additives worsen the attraction effect.
  • Smoothness – ideal contact is obtained only on smooth steel. Rough texture create air cushions, weakening the magnet.
  • Heat – NdFeB sinters have a sensitivity to temperature. At higher temperatures they are weaker, and in frost gain strength (up to a certain limit).

Lifting capacity testing was conducted on a smooth plate of optimal thickness, under perpendicular forces, whereas under attempts to slide the magnet the lifting capacity is smaller. Additionally, even a slight gap between the magnet and the plate reduces the load capacity.

Warnings
Warning for heart patients

Patients with a pacemaker have to maintain an safe separation from magnets. The magnetism can interfere with the operation of the implant.

Allergy Warning

Warning for allergy sufferers: The Ni-Cu-Ni coating consists of nickel. If skin irritation happens, cease handling magnets and use protective gear.

Caution required

Use magnets with awareness. Their immense force can surprise even experienced users. Be vigilant and respect their power.

Heat warning

Regular neodymium magnets (grade N) undergo demagnetization when the temperature surpasses 80°C. This process is irreversible.

Phone sensors

Navigation devices and smartphones are highly susceptible to magnetic fields. Direct contact with a powerful NdFeB magnet can ruin the sensors in your phone.

Keep away from computers

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

Material brittleness

Despite metallic appearance, the material is brittle and not impact-resistant. Do not hit, as the magnet may shatter into hazardous fragments.

Hand protection

Mind your fingers. Two powerful magnets will join instantly with a force of massive weight, crushing anything in their path. Be careful!

Product not for children

Adult use only. Small elements pose a choking risk, leading to intestinal necrosis. Keep out of reach of children and animals.

Mechanical processing

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

Safety First! Need more info? Read our article: Why are neodymium magnets dangerous?