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

MW 3x2 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010064

GTIN/EAN: 5906301810636

5.00
Load capacity 0.30 kg / 2.99 N Magnetic Induction 493.99 mT / 4940 Gs
Diameter Ø
3 mm [±0,1 mm]
Height
2 mm [±0,1 mm]
Weight
0.11 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

technical specifications »

0.1200 zł net / pcs

0.1476 zł with VAT (23% VAT) / pcs

price for transport

bulk discounts:

Need more?
Quantity
Net
Gross
price from 1 pcs
0.1200 zł
0.1476 zł
price from 1000 pcs
0.1080 zł
0.1328 zł
price from 2000 pcs
0.1056 zł
0.1299 zł

Frequently asked questions

What is the maximum working temperature of a disc magnet?
Standard N-series grades work up to 80 °C. Grades N50, N52 and N54 have a lower limit of 60 °C, because coercivity falls as BHmax rises. Higher temperatures require the H (120 °C), SH (150 °C), UH (180 °C), EH (200 °C) or AH (230 °C) series. Within the working range the magnet loses about 0.11% of its induction per degree, and that loss is reversible.
What is the difference between N38, N42 and N52?
The number after N is the energy product BHmax. Moving from N38 to N52 raises it by several tens of percent, but the real holding force increases by roughly 20%, because force also depends on geometry and on the magnetic circuit. N52 costs about twice as much as N42, so for most mounting work N38–N42 is the best price-to-force ratio.
What is the dimensional tolerance?
±0.1 mm as standard, ±0.05 mm to order. The tolerance is stated next to the dimensions on every product page.

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!

Product card - MW 3x2 / N38 - cylindrical magnet

Specification / characteristics - MW 3x2 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010064
GTIN/EAN 5906301810636
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 Ø 3 mm [±0,1 mm]
Height 2 mm [±0,1 mm]
Weight 0.11 g
Magnetization Direction ↑ axial
Load capacity ~ ? 0.30 kg / 2.99 N
Magnetic Induction ~ ? 493.99 mT / 4940 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 3x2 / N38 - cylindrical 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

Physical modeling of the product - data

These information are the outcome of a engineering analysis. Values are based on models for the class Nd2Fe14B. Real-world performance may deviate from the simulation results. Use these data as a supplementary guide when designing systems.

Table 1: Static force (pull vs distance) - characteristics
MW 3x2 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 4928 Gs
492.8 mT
 0.30 kg / 0.66 pounds
300.0 g / 2.9 N
 weak grip
1 mm 2106 Gs
210.6 mT
 0.05 kg / 0.12 pounds
54.8 g / 0.5 N
 weak grip
2 mm 845 Gs
84.5 mT
 0.01 kg / 0.02 pounds
8.8 g / 0.1 N
 weak grip
3 mm 393 Gs
39.3 mT
 0.00 kg / 0.00 pounds
1.9 g / 0.0 N
 weak grip
5 mm 124 Gs
12.4 mT
 0.00 kg / 0.00 pounds
0.2 g / 0.0 N
 weak grip
10 mm 21 Gs
2.1 mT
 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
 weak grip
15 mm 7 Gs
0.7 mT
 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
 weak grip
20 mm 3 Gs
0.3 mT
 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
 weak grip
30 mm 1 Gs
0.1 mT
 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
 weak grip
50 mm 0 Gs
0.0 mT
 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
 weak grip
Magnetic force drops sharply with every subsequent millimeter of gap. Keep in mind that even the smallest gap (e.g., contamination, varnish, veneer) strongly reduces the pull force. Neodymiums hold strongest at the point of direct contact; gap weakens the power. Analyze how rapidly the parameters fall, when the magnet does not adhere tightly to the metal substrate. When planning the assembly, avoid redundant distances.

Table 2: Vertical force (wall)
MW 3x2 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.06 kg / 0.13 pounds
60.0 g / 0.6 N
1 mm Stal (~0.2) 0.01 kg / 0.02 pounds
10.0 g / 0.1 N
2 mm Stal (~0.2) 0.00 kg / 0.00 pounds
2.0 g / 0.0 N
3 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
5 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
10 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 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 table below indicates the approximate shear load required to cause the sliding of the magnet downwards on a upright steel plate (considering standard friction). This value varies with the gap size between the magnet and the metal.

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MW 3x2 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.09 kg / 0.20 pounds
90.0 g / 0.9 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.06 kg / 0.13 pounds
60.0 g / 0.6 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.03 kg / 0.07 pounds
30.0 g / 0.3 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
0.15 kg / 0.33 pounds
150.0 g / 1.5 N
When placing a magnet on a upright surface (e.g., a board), it will only hold barely approx. 1/5 of its nominal power. Gravity and a weak degree of grip influence the fact that magnets slip easier than they pull off. Planning a wall mount? Note that the sliding force is noticeably lower than the perpendicular breakaway force. On a smooth steel, the element will slide down under a noticeably lighter cargo. Utilizing a rubberized layer can effectively increase the grip.

Table 4: Steel thickness (substrate influence) - power losses
MW 3x2 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.03 kg / 0.07 pounds
30.0 g / 0.3 N
1 mm
25%
 0.08 kg / 0.17 pounds
75.0 g / 0.7 N
2 mm
50%
 0.15 kg / 0.33 pounds
150.0 g / 1.5 N
3 mm
75%
 0.22 kg / 0.50 pounds
225.0 g / 2.2 N
5 mm
100%
 0.30 kg / 0.66 pounds
300.0 g / 2.9 N
10 mm
100%
 0.30 kg / 0.66 pounds
300.0 g / 2.9 N
11 mm
100%
 0.30 kg / 0.66 pounds
300.0 g / 2.9 N
12 mm
100%
 0.30 kg / 0.66 pounds
300.0 g / 2.9 N
A too thin steel is unable to conduct the full magnetic flux, which squanders power of the holder. Should you attach a powerful product to a thin surface, the flux will pass right through and the holding will be smaller. To achieve 100% of this neodymium's potential, you need a suitably thick piece of steel. The material oversaturation means that on delicate walls (e.g., car bodies), the magnet shows lower pull force. We advise picking the steel dimension according to the table below.

Table 5: Working in heat (stability) - power drop
MW 3x2 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 0.30 kg / 0.66 pounds
300.0 g / 2.9 N
 OK
40 °C -2.2% 0.29 kg / 0.65 pounds
293.4 g / 2.9 N
 OK
60 °C -4.4% 0.29 kg / 0.63 pounds
286.8 g / 2.8 N
 OK
80 °C -6.6% 0.28 kg / 0.62 pounds
280.2 g / 2.7 N
100 °C -28.8% 0.21 kg / 0.47 pounds
213.6 g / 2.1 N
Classic neodymiums irreversibly lose strength after exceeding the maximum temperature. Avoid high temperatures – high temperature can permanently damage this magnet. With increasing heat, the neodymium's power temporarily decreases. Avoid using this magnet close to heaters higher than its operating temperature limit. Ignoring the limit will result in permanent loss of magnetic properties.
*Technical advisory: Heat tolerance depends not only on the material grade, as well as the dimension ratios. Low-profile magnets (pancake types) may lose charge permanently sooner than long magnets. Red status in the table signals permanent field degradation for this specific geometry.

Table 6: Magnet-Magnet interaction (attraction) - field range
MW 3x2 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Lateral Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 1.06 kg / 2.33 pounds
5 766 Gs
0.16 kg / 0.35 pounds
159 g / 1.6 N
 N/A
1 mm 0.49 kg / 1.08 pounds
6 712 Gs
0.07 kg / 0.16 pounds
74 g / 0.7 N
 0.44 kg / 0.97 pounds
~0 Gs
2 mm 0.19 kg / 0.43 pounds
4 213 Gs
0.03 kg / 0.06 pounds
29 g / 0.3 N
 0.17 kg / 0.38 pounds
~0 Gs
3 mm 0.08 kg / 0.17 pounds
2 629 Gs
0.01 kg / 0.02 pounds
11 g / 0.1 N
 0.07 kg / 0.15 pounds
~0 Gs
5 mm 0.01 kg / 0.03 pounds
1 131 Gs
0.00 kg / 0.00 pounds
2 g / 0.0 N
 0.01 kg / 0.03 pounds
~0 Gs
10 mm 0.00 kg / 0.00 pounds
248 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
 0.00 kg / 0.00 pounds
~0 Gs
20 mm 0.00 kg / 0.00 pounds
41 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
 0.00 kg / 0.00 pounds
~0 Gs
50 mm 0.00 kg / 0.00 pounds
3 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
2 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
1 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
1 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
1 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
0 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
 0.00 kg / 0.00 pounds
~0 Gs
Two strong neodymiums attract each other from a significantly greater distance than a neodymium and metal combination. The setup of magnet-to-magnet creates a more powerful interaction and a larger range of operation. Want to build a strong closure? Apply two magnets instead of one magnet and a striker plate. Remember that when attracting two neodymiums, the pinch force is huge. The levitation is slightly lower than the attraction, but still significant.
*Flux density between like poles reaches ~0 Gs in the exact middle between the magnets (due to field cancellation).
Attention: Results demonstrate shear force of two same neodymium magnets (friction coefficient ~0.15 for Ni-Ni plating).

Table 7: Protective zones (implants) - precautionary measures
MW 3x2 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 2.0 cm
Hearing aid 10 Gs (1.0 mT) 1.5 cm
Timepiece 20 Gs (2.0 mT) 1.5 cm
Mobile device 40 Gs (4.0 mT) 1.0 cm
Car key 50 Gs (5.0 mT) 1.0 cm
Payment card 400 Gs (40.0 mT) 0.5 cm
HDD hard drive 600 Gs (60.0 mT) 0.5 cm
Extremely neodym field is a real danger to electronic devices as well as pacemakers. These NdFeB products produce a flux that prevents correct functioning of digital equipment. Remember: the invisible magnetic field penetrates the body and plastic. Increased vigilance must be taken by people with cochlear implants and insulin pumps. Also at risk are: automatic timepieces, remotes, speakers, and displays. Avoid contact with magnetic cards, hard drives, or precise measuring instruments.

Table 8: Impact energy (kinetic energy) - warning
MW 3x2 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 20.61 km/h
(5.73 m/s)
 0.00 J
30 mm 20.62 km/h
(5.73 m/s)
 0.00 J
50 mm 20.62 km/h
(5.73 m/s)
 0.00 J
100 mm 20.62 km/h
(5.73 m/s)
 0.00 J
NdFeB products are very brittle – a violent impact against metal causes immediate chipping. Pay attention to connection velocity – a neodymium left loose speeds with massive force. Kinetic force can trigger coating fragments or painful pinches to fingers. Always hold the magnet during installation so it doesn't slam with momentum against the metal. A collision at high speed almost guarantees destruction of the magnet. Wear safety glasses when handling with large magnets.

Table 9: Surface protection spec
MW 3x2 / 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)
Neodymium magnets are highly susceptible to corrosion without proper protection. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Electrical data (Flux)
MW 3x2 / N38

Parameter Value SI Unit / Description
Magnetic Flux 353 Mx 3.5 µWb
Pc Coefficient 0.71 High (Stable)
Total magnetic flux emitted by the magnet pole. Essential parameter for generator designers as well as sensors. The Pc coefficient determines the magnet's operating point.

Table 11: Submerged application
MW 3x2 / N38

Environment Effective steel pull Effect
Air (land) 0.30 kg Standard
Water (riverbed) 0.34 kg
(+0.04 kg buoyancy gain)
+14.5%
Corrosion warning: Remember to wipe the magnet thoroughly after removing it from water and apply a protective layer (e.g., oil) to avoid corrosion.
The magnetic field penetrates through water without any losses. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Sliding resistance

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

2. Steel saturation

*Thin metal sheet (e.g. computer case) significantly reduces the holding force.

3. Power loss vs temp

*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) = 0.71

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.

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%

Ecology and recycling (GPSR)

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: 010064-2026
Measurement Calculator

Pulling force

Magnetic Induction

Enter a number in a box, and all other values change instantly.

See more proposals

NCM 40x13.5x5 / N38 - channel magnetic holder
Product available Ships today (order by 14:00)

NCM 40x13.5x5 / N38 - channel magnetic holder

14.19 zł brutto / pcs
KM HF - 11,3 kg - magnetic bracket
Product available Ships today (order by 14:00)

KM HF - 11,3 kg - magnetic bracket

24.60 zł brutto / pcs
AM ucho małe [M8] - magnetic accessories
Product available Ships today (order by 14:00)

AM ucho małe [M8] - magnetic accessories

4.92 zł brutto / pcs
MW 2x4 / N38 - cylindrical magnet
Product available Ships today (order by 14:00)

MW 2x4 / N38 - cylindrical magnet

0.209 zł brutto / pcs
The presented product is a very strong rod magnet, composed of advanced NdFeB material, which, at dimensions of Ø3x2 mm, guarantees optimal power. The MW 3x2 / N38 component boasts high dimensional repeatability and professional build quality, making it an excellent solution for the most demanding engineers and designers. As a cylindrical magnet with significant force (approx. 0.30 kg), this product is available off-the-shelf from our European logistics center, ensuring quick order fulfillment. Moreover, its triple-layer Ni-Cu-Ni coating effectively protects it against corrosion in typical operating conditions, guaranteeing an aesthetic appearance and durability for years.
This model is ideal for building electric motors, advanced sensors, and efficient magnetic separators, where field concentration on a small surface counts. Thanks to the pull force of 2.99 N with a weight of only 0.11 g, this cylindrical magnet is indispensable in electronics and wherever every gram matters.
Since our magnets have a very precise dimensions, the best method is to glue them into holes with a slightly larger diameter (e.g., 3.1 mm) using epoxy glues. To ensure long-term durability in industry, specialized industrial adhesives are used, which do not react with the nickel coating and fill the gap, guaranteeing high repeatability of the connection.
Grade N38 is the most popular standard for professional neodymium magnets, offering an optimal price-to-power ratio and high resistance to demagnetization. If you need even stronger magnets in the same volume (Ø3x2), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our warehouse.
The presented product is a neodymium magnet with precisely defined parameters: diameter 3 mm and height 2 mm. The key parameter here is the holding force amounting to approximately 0.30 kg (force ~2.99 N), which, with such defined dimensions, proves the high power of the NdFeB material. The product has a [NiCuNi] coating, which secures it against external factors, giving it an aesthetic, silvery shine.
Standardly, the magnetic axis runs through the center of the cylinder, causing the greatest attraction force to occur on the bases with a diameter of 3 mm. Thanks to this, the magnet can be easily glued into a hole and achieve a strong field on the front surface. On request, we can also produce versions magnetized diametrically if your project requires it.

Pros as well as cons of neodymium magnets.

Advantages

In addition to their magnetic capacity, neodymium magnets provide the following advantages:
  • They have constant strength, and over around ten years their performance decreases symbolically – ~1% (according to theory),
  • Magnets effectively protect themselves against demagnetization caused by foreign field sources,
  • In other words, due to the smooth layer of gold, the element gains visual value,
  • The surface of neodymium magnets generates a concentrated magnetic field – this is a distinguishing feature,
  • Through (appropriate) combination of ingredients, they can achieve high thermal strength, allowing for action at temperatures reaching 230°C and above...
  • Thanks to freedom in shaping and the ability to adapt to unusual requirements,
  • Significant place in modern technologies – they serve a role in hard drives, electric drive systems, medical devices, as well as multitasking production systems.
  • Thanks to concentrated force, small magnets offer high operating force, occupying minimum space,

Weaknesses

Drawbacks and weaknesses of neodymium magnets and ways of using them
  • They are fragile upon heavy impacts. To avoid cracks, it is worth securing magnets in special housings. Such protection not only protects the magnet but also improves its resistance to damage
  • When exposed to high temperature, neodymium magnets suffer a drop in power. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size and shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
  • Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material stable to moisture, when using outdoors
  • Limited possibility of creating nuts in the magnet and complex forms - preferred is a housing - magnet mounting.
  • Potential hazard to health – tiny shards of magnets are risky, in case of ingestion, which becomes key in the aspect of protecting the youngest. It is also worth noting that small components of these magnets can be problematic in diagnostics medical in case of swallowing.
  • High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which can limit application in large quantities

Holding force characteristics

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

The lifting capacity listed is a measurement result executed under standard conditions:
  • using a plate made of high-permeability steel, functioning as a circuit closing element
  • whose transverse dimension reaches at least 10 mm
  • with an polished touching surface
  • under conditions of no distance (metal-to-metal)
  • under axial force vector (90-degree angle)
  • in temp. approx. 20°C

Lifting capacity in practice – influencing factors

Effective lifting capacity is affected by working environment parameters, mainly (from most important):
  • Clearance – the presence of foreign body (paint, dirt, gap) interrupts the magnetic circuit, which lowers power rapidly (even by 50% at 0.5 mm).
  • Direction of force – maximum parameter is obtained only during pulling at a 90° angle. The shear force of the magnet along the plate is standardly many times smaller (approx. 1/5 of the lifting capacity).
  • Plate thickness – too thin steel does not accept the full field, causing part of the power to be lost to the other side.
  • Material composition – different alloys attracts identically. High carbon content worsen the interaction with the magnet.
  • Plate texture – smooth surfaces guarantee perfect abutment, which improves field saturation. Rough surfaces reduce efficiency.
  • Thermal factor – high temperature reduces pulling force. Too high temperature can permanently demagnetize the magnet.

Holding force was tested on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, whereas under attempts to slide the magnet the holding force is lower. Moreover, even a small distance between the magnet’s surface and the plate lowers the lifting capacity.

H&S for magnets
Metal Allergy

A percentage of the population experience a sensitization to nickel, which is the standard coating for neodymium magnets. Prolonged contact may cause a rash. We suggest use safety gloves.

Pinching danger

Protect your hands. Two large magnets will snap together immediately with a force of several hundred kilograms, destroying everything in their path. Be careful!

Implant safety

Individuals with a pacemaker should maintain an large gap from magnets. The magnetism can interfere with the operation of the life-saving device.

GPS and phone interference

A powerful magnetic field disrupts the operation of magnetometers in smartphones and navigation systems. Maintain magnets near a smartphone to prevent damaging the sensors.

Safe distance

Intense magnetic fields can erase data on payment cards, HDDs, and other magnetic media. Keep a distance of at least 10 cm.

Permanent damage

Avoid heat. NdFeB magnets are sensitive to heat. If you need operation above 80°C, look for special high-temperature series (H, SH, UH).

Immense force

Handle magnets with awareness. Their immense force can shock even professionals. Plan your moves and respect their power.

Choking Hazard

NdFeB magnets are not toys. Eating a few magnets may result in them connecting inside the digestive tract, which poses a critical condition and necessitates immediate surgery.

Dust explosion hazard

Powder produced during machining of magnets is combustible. Avoid drilling into magnets without proper cooling and knowledge.

Eye protection

Watch out for shards. Magnets can fracture upon violent connection, ejecting sharp fragments into the air. We recommend safety glasses.

Security! Learn more about hazards in the article: Safety of working with magnets.