Product on order Ships in 3-5 days CO2 GPSR PPWR REACH

MW 5x3 zestaw 100 szt. / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010547

GTIN/EAN: 5906301815389

Load capacity 0.84 kg / 8.25 N Magnetic Induction 475.16 mT / 4752 Gs
Diameter Ø
5 mm [±0,1 mm]
Height
3 mm [±0,1 mm]
Weight
44 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

product specifications »

32.51 zł net / pcs

39.99 zł with VAT (23% VAT) / pcs

price for transport

bulk discounts:

Need more?
Quantity
Net
Gross
price from 1 pcs
32.51 zł
39.99 zł
price from 20 pcs
30.56 zł
37.59 zł
price from 80 pcs
28.61 zł
35.19 zł

Frequently asked questions

Where can I buy strong cylindrical neodymium magnets?
See the available cylinders in the DHIT catalogue. Compare dimensions, grade and the pull-force value on each product card; grade alone does not determine the pull force of a finished magnet.
Can a small cylindrical magnet provide a strong grip for precise workshop work?
Yes, but size alone is not enough to predict the result. Geometry, the steel surface and the direction of load affect the grip. Compare the specifications of the selected dimensions on their product cards.
Which cylindrical magnet can work at a higher temperature?
Check the operating-temperature limit of the particular model rather than assuming one limit for all N grades. The offered N52 models are rated up to 60°C. For hotter applications, ask for a product with a confirmed specification for the actual working temperature.

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 of the product - MW 5x3 zestaw 100 szt. / N38 - cylindrical magnet

Specification / characteristics - MW 5x3 zestaw 100 szt. / N38 - cylindrical magnet

properties
properties values
Cat. no. 010547
GTIN/EAN 5906301815389
Distributor Dhit sp. z o.o.
Country of origin Poland / China / Germany
Customs code 85059029
Diameter Ø 5 mm [±0,1 mm]
Height 3 mm [±0,1 mm]
Weight 44 g
Magnetization Direction ↑ axial
Load capacity ~ ? 0.84 kg / 8.25 N
Magnetic Induction ~ ? 475.16 mT / 4752 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 5x3 zestaw 100 szt. / 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

Engineering analysis of the product - technical parameters

The following information represent the result of a physical simulation. Values were calculated on algorithms for the material Nd2Fe14B. Operational conditions might slightly deviate from the simulation results. Treat these calculations as a reference point during assembly planning.

Table 1: Static force (force vs gap) - characteristics
MW 5x3 zestaw 100 szt. / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 4745 Gs
474.5 mT
 0.84 kg / 1.85 LBS
840.0 g / 8.2 N
 low risk
1 mm 2955 Gs
295.5 mT
 0.33 kg / 0.72 LBS
325.8 g / 3.2 N
 low risk
2 mm 1672 Gs
167.2 mT
 0.10 kg / 0.23 LBS
104.4 g / 1.0 N
 low risk
3 mm 960 Gs
96.0 mT
 0.03 kg / 0.08 LBS
34.4 g / 0.3 N
 low risk
5 mm 372 Gs
37.2 mT
 0.01 kg / 0.01 LBS
5.2 g / 0.1 N
 low risk
10 mm 74 Gs
7.4 mT
 0.00 kg / 0.00 LBS
0.2 g / 0.0 N
 low risk
15 mm 25 Gs
2.5 mT
 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
 low risk
20 mm 12 Gs
1.2 mT
 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
 low risk
30 mm 4 Gs
0.4 mT
 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
 low risk
50 mm 1 Gs
0.1 mT
 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
 low risk
Pulling power weakens significantly per each millimeter of spacing. Keep in mind that even a microscopic distance (e.g., dirt, varnish, veneer) noticeably reduces the pull force. Neodymiums work most effectively during direct contact; air break kills the power. Analyze how rapidly the load capacity plummet, when the magnet does not adhere tightly to the metal substrate. When designing the mounting, eliminate unnecessary gaps.

Table 2: Vertical load (wall)
MW 5x3 zestaw 100 szt. / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Raw steel (µ ≈ 0.2) 0.17 kg / 0.37 LBS
168.0 g / 1.6 N
1 mm Raw steel (µ ≈ 0.2) 0.07 kg / 0.15 LBS
66.0 g / 0.6 N
2 mm Raw steel (µ ≈ 0.2) 0.02 kg / 0.04 LBS
20.0 g / 0.2 N
3 mm Raw steel (µ ≈ 0.2) 0.01 kg / 0.01 LBS
6.0 g / 0.1 N
5 mm Raw steel (µ ≈ 0.2) 0.00 kg / 0.00 LBS
2.0 g / 0.0 N
10 mm Raw steel (µ ≈ 0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
15 mm Raw steel (µ ≈ 0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
20 mm Raw steel (µ ≈ 0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
30 mm Raw steel (µ ≈ 0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
50 mm Raw steel (µ ≈ 0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
This section shows the estimated holding capacity required to initiate the slippage of the magnet down along a upright steel wall (considering standard friction). This value is relative to the separation distance between the magnet and the metal.

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 5x3 zestaw 100 szt. / N38

Surface type Friction coefficient / % Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% of nominal force
0.25 kg / 0.56 LBS
252.0 g / 2.5 N
Painted steel (standard)
µ = 0.2 20% of nominal force
0.17 kg / 0.37 LBS
168.0 g / 1.6 N
Oily/slippery steel
µ = 0.1 10% of nominal force
0.08 kg / 0.19 LBS
84.0 g / 0.8 N
Magnet with anti-slip rubber
µ = 0.5 50% of nominal force
0.42 kg / 0.93 LBS
420.0 g / 4.1 N
When mounting a magnet on a upright plane (e.g., a car body), it you can count on only approx. 20%-30% of nominal attraction strength. Gravity and a weak degree of grip mean that holders move down easier than they pop off the substrate. Want to create a hanger? Note that the sliding force is much weaker than the maximum static pull force. On a smooth steel, the holder will slip down under a much lighter load. Application of an anti-slip pad can drastically increase the grip.

Table 4: Steel thickness (substrate influence) - sheet metal selection
MW 5x3 zestaw 100 szt. / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.08 kg / 0.19 LBS
84.0 g / 0.8 N
1 mm
25%
 0.21 kg / 0.46 LBS
210.0 g / 2.1 N
2 mm
50%
 0.42 kg / 0.93 LBS
420.0 g / 4.1 N
3 mm
75%
 0.63 kg / 1.39 LBS
630.0 g / 6.2 N
5 mm
100%
 0.84 kg / 1.85 LBS
840.0 g / 8.2 N
10 mm
100%
 0.84 kg / 1.85 LBS
840.0 g / 8.2 N
11 mm
100%
 0.84 kg / 1.85 LBS
840.0 g / 8.2 N
12 mm
100%
 0.84 kg / 1.85 LBS
840.0 g / 8.2 N
A thin sheet cannot focus the full magnetic flux, which weakens actual performance of the magnet. Should you mount a strong magnet to a weak sheet, the magnetism will pass right through and the pull force will drop sharply. To achieve 100% of this magnet's power, you require a sufficiently solid backing of steel. The material oversaturation means that on thin elements (e.g., thin profiles), the holder holds weaker. We advise picking the steel cross-section from these parameters.

Table 5: Thermal stability (material behavior) - thermal limit
MW 5x3 zestaw 100 szt. / N38

Magnet temperature (°C) Force change relative to 20°C Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 0.84 kg / 1.85 LBS
840.0 g / 8.2 N
 Estimate
40 °C -4.4% 0.80 kg / 1.77 LBS
803.4 g / 7.9 N
 Estimate
60 °C -8.6% 0.77 kg / 1.69 LBS
767.7 g / 7.5 N
 Estimate
80 °C -12.8% 0.73 kg / 1.62 LBS
732.8 g / 7.2 N
 Material limit
100 °C — — Out of range — no model
The table estimates the reversible force change relative to 20°C, assuming a Br coefficient of -0.11%/°C and force proportional to Br². This is a simplified model with unchanged contact and geometry, not a measurement. Above the material limit, neither force nor irreversible magnetization loss is predicted.
The temperature limit comes from this product’s material data. Permissible conditions also depend on geometry and the magnetic circuit. Without B-H curves for the specific grade and temperature, Pc alone does not determine irreversible demagnetization. Values within the material range do not guarantee the allowable temperature of the complete assembly.

Table 6: Two magnets (attraction) - field range
MW 5x3 zestaw 100 szt. / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Strength (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 2.73 kg / 6.01 LBS
5 700 Gs
0.41 kg / 0.90 LBS
409 g / 4.0 N
 N/A
1 mm 1.77 kg / 3.91 LBS
7 658 Gs
0.27 kg / 0.59 LBS
266 g / 2.6 N
 1.60 kg / 3.52 LBS
~0 Gs
2 mm 1.06 kg / 2.33 LBS
5 910 Gs
0.16 kg / 0.35 LBS
159 g / 1.6 N
 0.95 kg / 2.10 LBS
~0 Gs
3 mm 0.60 kg / 1.33 LBS
4 460 Gs
0.09 kg / 0.20 LBS
90 g / 0.9 N
 0.54 kg / 1.19 LBS
~0 Gs
5 mm 0.19 kg / 0.42 LBS
2 520 Gs
0.03 kg / 0.06 LBS
29 g / 0.3 N
 0.17 kg / 0.38 LBS
~0 Gs
10 mm 0.02 kg / 0.04 LBS
745 Gs
0.00 kg / 0.01 LBS
3 g / 0.0 N
 0.02 kg / 0.03 LBS
~0 Gs
20 mm 0.00 kg / 0.00 LBS
147 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
12 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
7 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
5 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
3 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
2 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
2 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 sheet combination. The connection of magnet-to-magnet produces a massive flux and a wider radius of performance. Want to build a solid fastener? Utilize two neodymiums instead of a neodymium and a striker plate. Be careful that when connecting a pair of magnets, the pinch force is extreme. The levitation is slightly lower than the attraction, but still significant.
*Flux density between like poles reaches ~0 Gs at the geometric center between the magnets (resulting from vector opposition).
Important: Calculations show shear force of dual matching neodymium magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Axial field levels — not safety zones
MW 5x3 zestaw 100 szt. / N38

Field level (Gs) mT Model distance (cm)
< 5 Gs < 0.5 mT 3.0 cm
< 10 Gs < 1.0 mT 2.5 cm
< 20 Gs < 2.0 mT 2.0 cm
< 40 Gs < 4.0 mT 1.5 cm
< 50 Gs < 5.0 mT 1.5 cm
< 400 Gs < 40.0 mT 0.5 cm
< 600 Gs < 60.0 mT 0.5 cm
Reference field levels for a model of one magnet, on its axis in air, with a 5 mm distance step. These are not device immunity limits or safe distances for implants. Do not use this table to assess the safety of a pacemaker, defibrillator or other implant; follow the device manufacturer’s and your clinician’s guidance. Steel and other magnets change the field distribution.

Table 8: Collisions (kinetic energy) - collision effects
MW 5x3 zestaw 100 szt. / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 2.22 km/h
(0.62 m/s)
 0.01 J
30 mm 2.22 km/h
(0.62 m/s)
 0.01 J
50 mm 2.22 km/h
(0.62 m/s)
 0.01 J
100 mm 2.22 km/h
(0.62 m/s)
 0.01 J
Magnetic elements are prone to chipping – a strong collision with metal risks their cracking. Watch the impact speed – a magnet released freely turns into a projectile. Impact energy can trigger coating fragments or painful pinches to skin. Be sure to control the product during mounting so it doesn't hit with great force against the steel surface. A contact at a velocity of dozens of km/h almost guarantees destruction of the magnet. Wear safety glasses when working with large magnets.

Table 9: Coating parameters (durability)
MW 5x3 zestaw 100 szt. / 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. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Electrical data (Pc)
MW 5x3 zestaw 100 szt. / N38

Parameter Value SI Unit / Description
Magnetic Flux 942 Mx 9.4 µWb
Pc Coefficient 0.66 High (Stable)
Total magnetic flux passing through the pole surface. Key data when building generators as well as sensors. The Pc coefficient determines the working geometry.

Table 11: Underwater work (magnet fishing)
MW 5x3 zestaw 100 szt. / N38

Environment Effective steel pull Effect
Air (land) 0.84 kg Standard
Water (riverbed) 0.96 kg
(+0.12 kg buoyancy gain)
+14.5%
Corrosion warning: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.
The magnetic field penetrates through water without any losses. Buoyancy helps in lifting finds.

1. Vertical hold

*Note: On a vertical surface, the magnet holds merely ~20% of its max power.

2. Efficiency vs thickness

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

3. Thermal stability

N38: the maximum material working temperature is 80°C. Permitted conditions also depend on the shape and magnetic circuit.

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.66

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 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%

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: 010547-2026
Quick Unit Converter

Force (pull)

Magnetic Field

Input a figure in a single slot to see the conversion for all other units at once.

Other offers

MW 29x10 / N38 - cylindrical magnet
Product on order Ships in 3-5 days

MW 29x10 / N38 - cylindrical magnet

19.25 zł brutto / pcs
ZM XMAG2 210 elementów - magnetic toy
Product on order Ships in 3-5 days

ZM XMAG2 210 elementów - magnetic toy

86.10 zł brutto / pcs
AM ucho [M12] - magnetic accessories
Product on order Ships in 3-5 days

AM ucho [M12] - magnetic accessories

9.84 zł brutto / pcs
SMZR 32x150 / N52 - magnetic separator with handle
Product on order Ships in 3-5 days

SMZR 32x150 / N52 - magnetic separator with handle

615.00 zł brutto / pcs
This product is an incredibly powerful cylinder magnet, composed of modern NdFeB material, which, at dimensions of Ø5x3 mm, guarantees maximum efficiency. This specific item features high dimensional repeatability and industrial build quality, making it an excellent solution for the most demanding engineers and designers. As a cylindrical magnet with impressive force (approx. 0.84 kg), this product is in stock from our warehouse in Poland, ensuring rapid order fulfillment. Furthermore, its Ni-Cu-Ni coating secures it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.
It successfully proves itself in DIY projects, advanced robotics, and broadly understood industry, serving as a positioning or actuating element. Thanks to the high power of 8.25 N with a weight of only 44 g, this rod is indispensable in miniature devices and wherever every gram matters.
Due to the delicate structure of the ceramic sinter, we absolutely advise against force-fitting (so-called press-fit), as this risks immediate cracking of this professional component. To ensure long-term durability in automation, specialized industrial adhesives are used, which are safe for nickel and fill the gap, guaranteeing durability of the connection.
Choose the material grade together with the dimensions and working conditions. A grade designation alone does not determine the pull force of the finished magnet. Check the properties and working temperature of this specific model on its product card; contact us before ordering for an unusual application.
This model is characterized by dimensions Ø5x3 mm, which, at a weight of 44 g, makes it an element with impressive magnetic energy density. The value of 8.25 N means that the magnet is capable of holding a weight many times exceeding its own mass of 44 g. The product has a [NiCuNi] coating, which secures it against external factors, giving it an aesthetic, silvery shine.
This cylinder is magnetized axially (along the height of 3 mm), which means that the N and S poles are located on the flat, circular surfaces. 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.

Strengths and weaknesses of Nd2Fe14B magnets.

Strengths

Apart from their strong power, neodymium magnets have these key benefits:
  • Their power is maintained, and after approximately 10 years it drops only by ~1% (according to research),
  • Magnets very well defend themselves against loss of magnetization caused by foreign field sources,
  • A magnet with a metallic gold surface has better aesthetics,
  • Magnets possess maximum magnetic induction on the outer side,
  • Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can function (depending on the form) even at a temperature of 230°C or more...
  • Thanks to flexibility in forming and the capacity to modify to specific needs,
  • Huge importance in future technologies – they are used in data components, drive modules, precision medical tools, as well as industrial machines.
  • Compactness – despite small sizes they generate large force, making them ideal for precision applications

Cons

Disadvantages of neodymium magnets:
  • At strong impacts they can break, therefore we advise placing them in strong housings. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
  • Do not exceed this material temperature limit: 80°C. Overheating may permanently weaken the magnet.
  • 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 ability of making nuts in the magnet and complicated forms - preferred is casing - mounting mechanism.
  • Possible danger resulting from small fragments of magnets are risky, in case of ingestion, which becomes key in the context of child health protection. Additionally, small components of these magnets are able to complicate diagnosis medical in case of swallowing.
  • Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Lifting parameters

Detachment force of the magnet in optimal conditions – what contributes to it?

Magnet power was defined for optimal configuration, including:
  • using a sheet made of high-permeability steel, acting as a ideal flux conductor
  • with a thickness no less than 10 mm
  • characterized by lack of roughness
  • under conditions of ideal adhesion (metal-to-metal)
  • under vertical force vector (90-degree angle)
  • at room temperature

What influences lifting capacity in practice

Holding efficiency is affected by specific conditions, including (from most important):
  • Space between magnet and steel – every millimeter of separation (caused e.g. by varnish or unevenness) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
  • Load vector – highest force is available only during perpendicular pulling. The force required to slide of the magnet along the surface is usually several times lower (approx. 1/5 of the lifting capacity).
  • Metal thickness – thin material does not allow full use of the magnet. Magnetic flux penetrates through instead of converting into lifting capacity.
  • Steel grade – the best choice is high-permeability steel. Cast iron may attract less.
  • Base smoothness – the more even the surface, the better the adhesion and higher the lifting capacity. Unevenness acts like micro-gaps.
  • Temperature – temperature increase causes a temporary drop of force. Check the maximum operating temperature for a given model.

Lifting capacity testing was conducted on a smooth plate of optimal thickness, under perpendicular forces, whereas under shearing force the holding force is lower. In addition, even a small distance between the magnet’s surface and the plate reduces the load capacity.

Precautions when working with NdFeB magnets
Protect data

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

Impact on smartphones

GPS units and mobile phones are extremely sensitive to magnetism. Close proximity with a powerful NdFeB magnet can permanently damage the sensors in your phone.

Immense force

Before starting, read the rules. Uncontrolled attraction can break the magnet or injure your hand. Think ahead.

Fragile material

Protect your eyes. Magnets can fracture upon uncontrolled impact, launching sharp fragments into the air. Eye protection is mandatory.

Dust is flammable

Dust created during machining of magnets is combustible. Do not drill into magnets unless you are an expert.

Permanent damage

Do not exceed the maximum operating temperature stated in the specifications of the particular product. The limit depends on the material, geometry and operating arrangement; there is no single threshold for all neodymium magnets. Overheating can permanently weaken a magnet.

Serious injuries

Large magnets can break fingers instantly. Never place your hand between two attracting surfaces.

Skin irritation risks

Some people have a hypersensitivity to Ni, which is the typical protective layer for neodymium magnets. Frequent touching might lead to dermatitis. We recommend wear safety gloves.

ICD Warning

For implant holders: Strong magnetic fields affect electronics. Maintain minimum 30 cm distance or ask another person to handle the magnets.

Keep away from children

Absolutely keep magnets away from children. Choking hazard is significant, and the effects of magnets clamping inside the body are fatal.

Caution! Want to know more? Read our article: Are neodymium magnets dangerous?