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

MW 2x4 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010055

GTIN/EAN: 5906301810544

5.00
Load capacity 0.09 kg / 0.86 N Magnetic Induction 597.70 mT / 5977 Gs
Diameter Ø
2 mm [±0,1 mm]
Height
4 mm [±0,1 mm]
Weight
0.09 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

see technical data »

0.1700 zł net / pcs

0.209 zł with VAT (23% VAT) / pcs

price for transport

bulk discounts:

Need more?
Quantity
Net
Gross
price from 1 pcs
0.1700 zł
0.209 zł
price from 5000 pcs
0.1496 zł
0.1840 zł
price from 10000 pcs
0.1445 zł
0.1777 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!

Technical details - MW 2x4 / N38 - cylindrical magnet

Specification / characteristics - MW 2x4 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010055
GTIN/EAN 5906301810544
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 2 mm [±0,1 mm]
Height 4 mm [±0,1 mm]
Weight 0.09 g
Magnetization Direction ↑ axial
Load capacity ~ ? 0.09 kg / 0.86 N
Magnetic Induction ~ ? 597.70 mT / 5977 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 2x4 / 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 analysis of the assembly - data

The following data represent the direct effect of a mathematical simulation. Results were calculated on algorithms for the material Nd2Fe14B. Actual conditions may differ. Please consider these calculations as a preliminary roadmap for designers.

Table 1: Static pull force (force vs gap) - power drop
MW 2x4 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 5954 Gs
595.4 mT
 0.09 kg / 0.20 LBS
90.0 g / 0.9 N
 safe
1 mm 1696 Gs
169.6 mT
 0.01 kg / 0.02 LBS
7.3 g / 0.1 N
 safe
2 mm 570 Gs
57.0 mT
 0.00 kg / 0.00 LBS
0.8 g / 0.0 N
 safe
3 mm 256 Gs
25.6 mT
 0.00 kg / 0.00 LBS
0.2 g / 0.0 N
 safe
5 mm 82 Gs
8.2 mT
 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
 safe
10 mm 15 Gs
1.5 mT
 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
 safe
15 mm 5 Gs
0.5 mT
 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
 safe
20 mm 2 Gs
0.2 mT
 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
 safe
30 mm 1 Gs
0.1 mT
 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
 safe
50 mm 0 Gs
0.0 mT
 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
 safe
Grip strength decreases significantly with every subsequent millimeter of spacing. Keep in mind that even a very thin break (e.g., contamination, varnish, dust) noticeably diminishes the holding power. Neodymiums hold strongest during direct contact; distance nullifies the force. See how flashily the parameters plummet, when the product does not touch directly to the steel surface. When planning the arrangement, avoid unnecessary gaps.

Table 2: Slippage load (vertical surface)
MW 2x4 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.02 kg / 0.04 LBS
18.0 g / 0.2 N
1 mm Stal (~0.2) 0.00 kg / 0.00 LBS
2.0 g / 0.0 N
2 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
3 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
5 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
10 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
15 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
20 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
30 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
50 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
This section shows the estimated holding capacity required to initiate the slippage of the magnet vertically against a vertical metal surface (considering typical friction). This value is relative to the separation distance between the magnet and the surface.

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MW 2x4 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.03 kg / 0.06 LBS
27.0 g / 0.3 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.02 kg / 0.04 LBS
18.0 g / 0.2 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.01 kg / 0.02 LBS
9.0 g / 0.1 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
0.05 kg / 0.10 LBS
45.0 g / 0.4 N
When hanging a element on a vertical plane (e.g., a board), it will maintain only about 20%-30% of its nominal power. Gravitational force and a low friction coefficient mean that magnets slip faster than they pull off. Planning a vertical fastening? Remember that the shear force is much weaker than the maximum static pull force. On a painted metal, the magnet will slide down under a noticeably lighter load. Using a rubber layer can significantly improve the result.

Table 4: Steel thickness (substrate influence) - power losses
MW 2x4 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.01 kg / 0.02 LBS
9.0 g / 0.1 N
1 mm
25%
 0.02 kg / 0.05 LBS
22.5 g / 0.2 N
2 mm
50%
 0.05 kg / 0.10 LBS
45.0 g / 0.4 N
3 mm
75%
 0.07 kg / 0.15 LBS
67.5 g / 0.7 N
5 mm
100%
 0.09 kg / 0.20 LBS
90.0 g / 0.9 N
10 mm
100%
 0.09 kg / 0.20 LBS
90.0 g / 0.9 N
11 mm
100%
 0.09 kg / 0.20 LBS
90.0 g / 0.9 N
12 mm
100%
 0.09 kg / 0.20 LBS
90.0 g / 0.9 N
A thin metal plate is not enough to absorb the entire magnetic field, which weakens actual performance of the magnet. If you attach a powerful product to a weak sheet, the field will pass right through and the attraction force will be weaker. To achieve full efficiency of this magnet's potential, you require a sufficiently solid backing of metal. The saturation effect causes that on sheet metal structures (e.g., car bodies), the magnet shows lower pull force. We advise picking the steel dimension according to the table below.

Table 5: Thermal stability (material behavior) - resistance threshold
MW 2x4 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 0.09 kg / 0.20 LBS
90.0 g / 0.9 N
 OK
40 °C -2.2% 0.09 kg / 0.19 LBS
88.0 g / 0.9 N
 OK
60 °C -4.4% 0.09 kg / 0.19 LBS
86.0 g / 0.8 N
 OK
80 °C -6.6% 0.08 kg / 0.19 LBS
84.1 g / 0.8 N
100 °C -28.8% 0.06 kg / 0.14 LBS
64.1 g / 0.6 N
Standard neodymium magnets lose power above the temperature limit. Protect against heat – excessive heat can irreversibly damage this product. With increasing heat, the magnet's force temporarily drops. Refrain from using this product close to ovens exceeding its safe range. Too high temperature will cause permanent loss of magnetism.
*Important note: Heat tolerance is determined by both grade, as well as the dimension ratios. Thin magnets (low Pc) risk losing magnetic properties at lower temperatures compared to rod magnets. Red status in the table signals a risk of irreversible loss for this particular item.

Table 6: Magnet-Magnet interaction (repulsion) - field range
MW 2x4 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Strength (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 0.69 kg / 1.51 LBS
6 090 Gs
0.10 kg / 0.23 LBS
103 g / 1.0 N
 N/A
1 mm 0.21 kg / 0.46 LBS
6 559 Gs
0.03 kg / 0.07 LBS
31 g / 0.3 N
 0.19 kg / 0.41 LBS
~0 Gs
2 mm 0.06 kg / 0.12 LBS
3 391 Gs
0.01 kg / 0.02 LBS
8 g / 0.1 N
 0.05 kg / 0.11 LBS
~0 Gs
3 mm 0.02 kg / 0.04 LBS
1 883 Gs
0.00 kg / 0.01 LBS
3 g / 0.0 N
 0.02 kg / 0.03 LBS
~0 Gs
5 mm 0.00 kg / 0.01 LBS
743 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
10 mm 0.00 kg / 0.00 LBS
165 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
20 mm 0.00 kg / 0.00 LBS
30 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
50 mm 0.00 kg / 0.00 LBS
3 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
60 mm 0.00 kg / 0.00 LBS
2 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
70 mm 0.00 kg / 0.00 LBS
1 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
1 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
0 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
0 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
Two strong neodymiums attract each other from a significantly greater distance than a magnet and steel combination. The setup of magnet-to-magnet creates a more powerful interaction and a wider radius of operation. Designing a solid fastener? Apply two magnets instead of one magnet and a striker plate. Be careful that when attracting two neodymiums, the pinch force is massive. The repulsion force is marginally weaker than the attraction, but still impressive.
*Field value for N-N configuration drops to ~0 Gs at the midpoint between the magnets (resulting from vector opposition).
Attention: Estimates show friction force of two matching neodymium magnets (friction coefficient ~0.15 for Ni-Ni plating).

Table 7: Safety (HSE) (electronics) - warnings
MW 2x4 / 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) 1.0 cm
Phone / Smartphone 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
A strong magnetic field poses a serious hazard to IT equipment and pacemakers. These NdFeB products generate a flux that prevents correct functioning of digital equipment. Be aware: the invisible magnetic field acts through matter and plastic. Special caution must be exercised by people with cochlear implants and drug dispensers. The risk also applies to: mechanical watches, car keys, speakers, and screens. Do not bring the product near payment cards, HDD media, or sensitive navigation tools.

Table 8: Dynamics (kinetic energy) - collision effects
MW 2x4 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 10.39 km/h
(2.89 m/s)
 0.00 J
30 mm 10.39 km/h
(2.89 m/s)
 0.00 J
50 mm 10.39 km/h
(2.89 m/s)
 0.00 J
100 mm 10.40 km/h
(2.89 m/s)
 0.00 J
Magnetic elements are prone to chipping – a violent impact against metal risks their cracking. Control the attraction moment – a neodymium left loose becomes dangerous. Impact energy can trigger coating fragments or dangerous crushing to skin. Be sure to control the product during bringing near metal so it doesn't slam with momentum against the steel surface. A collision at high speed means shattering of the magnet. Use safety goggles when handling with powerful specimens.

Table 9: Corrosion resistance
MW 2x4 / 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. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Construction data (Pc)
MW 2x4 / N38

Parameter Value SI Unit / Description
Magnetic Flux 209 Mx 2.1 µWb
Pc Coefficient 1.21 High (Stable)
Total magnetic flux passing through the pole surface. Essential parameter when building generators and motors. Pc value defines the magnet's operating point.

Table 11: Hydrostatics and buoyancy
MW 2x4 / N38

Environment Effective steel pull Effect
Air (land) 0.09 kg Standard
Water (riverbed) 0.10 kg
(+0.01 kg buoyancy gain)
+14.5%
Rust risk: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.
Water displaces steel, making heavy objects slightly lighter. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Shear force

*Caution: On a vertical wall, the magnet retains just approx. 20-30% of its nominal pull.

2. Steel thickness impact

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

3. Heat tolerance

*For N38 grade, the safety limit is 80°C.

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 1.21

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 specification and ecology

Elemental analysis

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

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: 010055-2026
Magnet Unit Converter

Magnet pull force

Magnetic Induction

Put your value in a single slot to get results for all other fields immediately.

Other deals

UI 45x13x6 [Z323] / N38 - badge holder
Product available Ships today (order by 14:00)

UI 45x13x6 [Z323] / N38 - badge holder

2.40 zł brutto / pcs
MT 50x1.5x30000 - magnetic tape
Product available Ships today (order by 14:00)

MT 50x1.5x30000 - magnetic tape

258.30 zł brutto / pcs
MW 5x15 / N38 - cylindrical magnet
Product available Ships today (order by 14:00)

MW 5x15 / N38 - cylindrical magnet

1.107 zł brutto / pcs
UMP 94x28 [3xM10] GW F300 GOLD / N38 - search holder
Product available Ships today (order by 14:00)

UMP 94x28 [3xM10] GW F300 GOLD / N38 - search holder

200.00 zł brutto / pcs
The presented product is an extremely powerful cylindrical magnet, composed of modern NdFeB material, which, with dimensions of Ø2x4 mm, guarantees optimal power. The MW 2x4 / N38 model is characterized by an accuracy of ±0.1mm and industrial build quality, making it a perfect solution for the most demanding engineers and designers. As a cylindrical magnet with significant force (approx. 0.09 kg), this product is in stock from our European logistics center, ensuring quick order fulfillment. Moreover, its Ni-Cu-Ni coating effectively protects it against corrosion in standard operating conditions, guaranteeing an aesthetic appearance and durability for years.
This model is created for building generators, advanced Hall effect sensors, and efficient filters, where maximum induction on a small surface counts. Thanks to the pull force of 0.86 N with a weight of only 0.09 g, this cylindrical magnet is indispensable in miniature devices and wherever every gram matters.
Since our magnets have a tolerance of ±0.1mm, the recommended way is to glue them into holes with a slightly larger diameter (e.g., 2.1 mm) using epoxy glues. To ensure long-term durability in automation, anaerobic resins are used, which are safe for nickel and fill the gap, guaranteeing durability of the connection.
Magnets N38 are suitable for the majority of applications in automation and machine building, where extreme miniaturization with maximum force is not required. If you need the strongest magnets in the same volume (Ø2x4), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our store.
The presented product is a neodymium magnet with precisely defined parameters: diameter 2 mm and height 4 mm. The key parameter here is the holding force amounting to approximately 0.09 kg (force ~0.86 N), which, with such compact dimensions, proves the high power of the NdFeB material. The product has a [NiCuNi] coating, which secures it against oxidation, 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 2 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 through the diameter if your project requires it.

Advantages and disadvantages of Nd2Fe14B magnets.

Strengths

Besides their remarkable pulling force, neodymium magnets offer the following advantages:
  • They have stable power, and over more than 10 years their performance decreases symbolically – ~1% (according to theory),
  • They feature excellent resistance to magnetism drop when exposed to external fields,
  • The use of an shiny coating of noble metals (nickel, gold, silver) causes the element to look better,
  • The surface of neodymium magnets generates a maximum magnetic field – this is a distinguishing feature,
  • Due to their durability and thermal resistance, neodymium magnets can operate (depending on the form) even at high temperatures reaching 230°C or more...
  • Thanks to flexibility in designing and the capacity to customize to individual projects,
  • Fundamental importance in future technologies – they serve a role in hard drives, electric motors, medical equipment, and technologically advanced constructions.
  • Thanks to concentrated force, small magnets offer high operating force, in miniature format,

Limitations

Drawbacks and weaknesses of neodymium magnets: application proposals
  • Susceptibility to cracking is one of their disadvantages. Upon strong impact they can fracture. We recommend keeping them in a steel housing, which not only secures them against impacts but also raises their durability
  • We warn that neodymium magnets can lose their strength at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
  • 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 prevent oxidation and corrosion.
  • Due to limitations in producing threads and complex shapes in magnets, we recommend using casing - magnetic mount.
  • Possible danger resulting from small fragments of magnets can be dangerous, if swallowed, which gains importance in the context of child health protection. Furthermore, tiny parts of these products can complicate diagnosis medical in case of swallowing.
  • High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which hinders application in large quantities

Lifting parameters

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

Breakaway force is the result of a measurement for the most favorable conditions, including:
  • on a base made of mild steel, perfectly concentrating the magnetic field
  • whose transverse dimension reaches at least 10 mm
  • characterized by smoothness
  • without the slightest air gap between the magnet and steel
  • for force applied at a right angle (pull-off, not shear)
  • at room temperature

Practical aspects of lifting capacity – factors

Bear in mind that the working load will differ depending on the following factors, starting with the most relevant:
  • Gap between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by varnish or unevenness) diminishes the magnet efficiency, often by half at just 0.5 mm.
  • Angle of force application – highest force is available only during perpendicular pulling. The force required to slide of the magnet along the plate is typically several times smaller (approx. 1/5 of the lifting capacity).
  • Wall thickness – thin material does not allow full use of the magnet. Magnetic flux passes through the material instead of generating force.
  • Metal type – not every steel attracts identically. High carbon content worsen the attraction effect.
  • Surface condition – ground elements ensure maximum contact, which increases force. Rough surfaces reduce efficiency.
  • Heat – neodymium magnets have a sensitivity to temperature. When it is hot they lose power, and at low temperatures they can be stronger (up to a certain limit).

Lifting capacity testing was carried out on plates with a smooth surface of suitable thickness, under perpendicular forces, whereas under parallel forces the load capacity is reduced by as much as fivefold. Additionally, even a small distance between the magnet and the plate reduces the lifting capacity.

Safe handling of neodymium magnets
Protect data

Avoid bringing magnets near a purse, laptop, or TV. The magnetism can permanently damage these devices and erase data from cards.

Swallowing risk

NdFeB magnets are not suitable for play. Accidental ingestion of multiple magnets can lead to them attracting across intestines, which constitutes a critical condition and requires urgent medical intervention.

Permanent damage

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

Metal Allergy

Nickel alert: The nickel-copper-nickel coating contains nickel. If skin irritation happens, immediately stop working with magnets and use protective gear.

Medical interference

Individuals with a pacemaker have to keep an large gap from magnets. The magnetic field can interfere with the functioning of the life-saving device.

GPS and phone interference

Navigation devices and mobile phones are extremely susceptible to magnetism. Direct contact with a strong magnet can ruin the internal compass in your phone.

Handling rules

Use magnets consciously. Their powerful strength can shock even professionals. Stay alert and respect their power.

Material brittleness

NdFeB magnets are sintered ceramics, which means they are prone to chipping. Collision of two magnets will cause them breaking into shards.

Fire warning

Fire hazard: Neodymium dust is highly flammable. Do not process magnets without safety gear as this may cause fire.

Crushing force

Danger of trauma: The pulling power is so great that it can cause hematomas, pinching, and even bone fractures. Use thick gloves.

Attention! Learn more about risks in the article: Safety of working with magnets.