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MW 10x10 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010004

GTIN/EAN: 5906301810032

5.00

Diameter Ø

10 mm [±0,1 mm]

Height

10 mm [±0,1 mm]

Weight

5.89 g

Magnetization Direction

↑ axial

Load capacity

3.18 kg / 31.15 N

Magnetic Induction

553.84 mT / 5538 Gs

Coating

[NiCuNi] Nickel

4.31 with VAT / pcs + price for transport

3.50 ZŁ net + 23% VAT / pcs

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Technical details - MW 10x10 / N38 - cylindrical magnet

Specification / characteristics - MW 10x10 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010004
GTIN/EAN 5906301810032
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 10 mm [±0,1 mm]
Height 10 mm [±0,1 mm]
Weight 5.89 g
Magnetization Direction ↑ axial
Load capacity ~ ? 3.18 kg / 31.15 N
Magnetic Induction ~ ? 553.84 mT / 5538 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 10x10 / N38 - cylindrical 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 312 - 380 °C
Curie Temperature TF 593 - 716 °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 simulation of the assembly - technical parameters

Presented values represent the result of a mathematical simulation. Values are based on algorithms for the class Nd2Fe14B. Real-world parameters might slightly differ from theoretical values. Please consider these data as a preliminary roadmap for designers.

Table 1: Static pull force (pull vs distance) - power drop
MW 10x10 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg) Risk Status
0 mm 5534 Gs
553.4 mT
3.18 kg / 3180.0 g
31.2 N
strong
1 mm 4428 Gs
442.8 mT
2.04 kg / 2036.1 g
20.0 N
strong
2 mm 3420 Gs
342.0 mT
1.21 kg / 1214.8 g
11.9 N
weak grip
3 mm 2597 Gs
259.7 mT
0.70 kg / 700.2 g
6.9 N
weak grip
5 mm 1498 Gs
149.8 mT
0.23 kg / 232.9 g
2.3 N
weak grip
10 mm 469 Gs
46.9 mT
0.02 kg / 22.9 g
0.2 N
weak grip
15 mm 198 Gs
19.8 mT
0.00 kg / 4.1 g
0.0 N
weak grip
20 mm 101 Gs
10.1 mT
0.00 kg / 1.1 g
0.0 N
weak grip
30 mm 36 Gs
3.6 mT
0.00 kg / 0.1 g
0.0 N
weak grip
50 mm 9 Gs
0.9 mT
0.00 kg / 0.0 g
0.0 N
weak grip

Table 2: Slippage load (wall)
MW 10x10 / N38

Distance (mm) Friction coefficient Pull Force (kg)
0 mm Stal (~0.2) 0.64 kg / 636.0 g
6.2 N
1 mm Stal (~0.2) 0.41 kg / 408.0 g
4.0 N
2 mm Stal (~0.2) 0.24 kg / 242.0 g
2.4 N
3 mm Stal (~0.2) 0.14 kg / 140.0 g
1.4 N
5 mm Stal (~0.2) 0.05 kg / 46.0 g
0.5 N
10 mm Stal (~0.2) 0.00 kg / 4.0 g
0.0 N
15 mm Stal (~0.2) 0.00 kg / 0.0 g
0.0 N
20 mm Stal (~0.2) 0.00 kg / 0.0 g
0.0 N
30 mm Stal (~0.2) 0.00 kg / 0.0 g
0.0 N
50 mm Stal (~0.2) 0.00 kg / 0.0 g
0.0 N

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MW 10x10 / N38

Surface type Friction coefficient / % Mocy Max load (kg)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.95 kg / 954.0 g
9.4 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.64 kg / 636.0 g
6.2 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.32 kg / 318.0 g
3.1 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
1.59 kg / 1590.0 g
15.6 N

Table 4: Material efficiency (substrate influence) - power losses
MW 10x10 / N38

Steel thickness (mm) % power Real pull force (kg)
0.5 mm
10%
0.32 kg / 318.0 g
3.1 N
1 mm
25%
0.80 kg / 795.0 g
7.8 N
2 mm
50%
1.59 kg / 1590.0 g
15.6 N
5 mm
100%
3.18 kg / 3180.0 g
31.2 N
10 mm
100%
3.18 kg / 3180.0 g
31.2 N

Table 5: Working in heat (stability) - resistance threshold
MW 10x10 / N38

Ambient temp. (°C) Power loss Remaining pull Status
20 °C 0.0% 3.18 kg / 3180.0 g
31.2 N
OK
40 °C -2.2% 3.11 kg / 3110.0 g
30.5 N
OK
60 °C -4.4% 3.04 kg / 3040.1 g
29.8 N
OK
80 °C -6.6% 2.97 kg / 2970.1 g
29.1 N
100 °C -28.8% 2.26 kg / 2264.2 g
22.2 N

Table 6: Two magnets (attraction) - field collision
MW 10x10 / N38

Gap (mm) Attraction (kg) (N-S) Repulsion (kg) (N-N)
0 mm 14.83 kg / 14830 g
145.5 N
6 003 Gs
N/A
1 mm 12.01 kg / 12012 g
117.8 N
9 962 Gs
10.81 kg / 10811 g
106.1 N
~0 Gs
2 mm 9.50 kg / 9495 g
93.1 N
8 857 Gs
8.55 kg / 8546 g
83.8 N
~0 Gs
3 mm 7.38 kg / 7381 g
72.4 N
7 809 Gs
6.64 kg / 6643 g
65.2 N
~0 Gs
5 mm 4.31 kg / 4311 g
42.3 N
5 968 Gs
3.88 kg / 3880 g
38.1 N
~0 Gs
10 mm 1.09 kg / 1086 g
10.7 N
2 996 Gs
0.98 kg / 978 g
9.6 N
~0 Gs
20 mm 0.11 kg / 107 g
1.0 N
939 Gs
0.10 kg / 96 g
0.9 N
~0 Gs
50 mm 0.00 kg / 2 g
0.0 N
116 Gs
0.00 kg / 0 g
0.0 N
~0 Gs

Table 7: Safety (HSE) (implants) - warnings
MW 10x10 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 6.5 cm
Hearing aid 10 Gs (1.0 mT) 5.0 cm
Mechanical watch 20 Gs (2.0 mT) 4.0 cm
Phone / Smartphone 40 Gs (4.0 mT) 3.0 cm
Remote 50 Gs (5.0 mT) 3.0 cm
Payment card 400 Gs (40.0 mT) 1.5 cm
HDD hard drive 600 Gs (60.0 mT) 1.0 cm

Table 8: Dynamics (kinetic energy) - collision effects
MW 10x10 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 23.54 km/h
(6.54 m/s)
0.13 J
30 mm 40.59 km/h
(11.27 m/s)
0.37 J
50 mm 52.40 km/h
(14.56 m/s)
0.62 J
100 mm 74.10 km/h
(20.58 m/s)
1.25 J

Table 9: Surface protection spec
MW 10x10 / 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)

Table 10: Construction data (Flux)
MW 10x10 / N38

Parameter Value SI Unit / Description
Magnetic Flux 4 481 Mx 44.8 µWb
Pc Coefficient 0.89 High (Stable)

Table 11: Physics of underwater searching
MW 10x10 / N38

Environment Effective steel pull Effect
Air (land) 3.18 kg Standard
Water (riverbed) 3.64 kg
(+0.46 kg Buoyancy gain)
+14.5%
Warning: Remember to wipe the magnet thoroughly after removing it from water and apply a protective layer (e.g., oil) to avoid corrosion.
1. Vertical hold

*Caution: On a vertical surface, the magnet retains merely ~20% of its nominal pull.

2. Steel saturation

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

3. Thermal stability

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

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.89

This simulation demonstrates the magnetic stability of the selected magnet under specific geometric conditions. The solid red line represents the demagnetization curve (material potential), while the dashed blue line is the load line based on the magnet's geometry. The Pc (Permeance Coefficient), also known as the load line slope, is a dimensionless value that describes the relationship between the magnet's shape and its magnetic stability. The intersection of these two lines (the black dot) is the operating point — it determines the actual magnetic flux density generated by the magnet in this specific configuration. A higher Pc value means the magnet is more 'slender' (tall relative to its area), resulting in a higher operating point and better resistance to irreversible demagnetization caused by external fields or temperature. A value of 0.42 is relatively low (typical for flat magnets), meaning the operating point is closer to the 'knee' of the curve — caution is advised when operating at temperatures near the maximum limit to avoid strength loss.

Technical and environmental data
Chemical composition
iron (Fe) 64% – 68%
neodymium (Nd) 29% – 32%
boron (B) 1.1% – 1.2%
dysprosium (Dy) 0.5% – 2.0%
coating (Ni-Cu-Ni) < 0.05%
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: 010004-2025
Magnet Unit Converter
Force (pull)

Field Strength

Other deals

The offered product is an exceptionally strong rod magnet, made from modern NdFeB material, which, with dimensions of Ø10x10 mm, guarantees the highest energy density. This specific item is characterized by a tolerance of ±0.1mm and professional build quality, making it an excellent solution for professional engineers and designers. As a cylindrical magnet with impressive force (approx. 3.18 kg), this product is in stock from our European logistics center, ensuring lightning-fast order fulfillment. Additionally, its Ni-Cu-Ni coating shields it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.
It successfully proves itself in DIY projects, advanced automation, and broadly understood industry, serving as a fastening or actuating element. Thanks to the high power of 31.15 N with a weight of only 5.89 g, this rod is indispensable in miniature devices and wherever low weight is crucial.
Due to the brittleness of the NdFeB material, you must not use force-fitting (so-called press-fit), as this risks chipping the coating 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 high repeatability of the connection.
Grade N38 is the most frequently chosen standard for industrial neodymium magnets, offering a great economic balance and high resistance to demagnetization. If you need the strongest magnets in the same volume (Ø10x10), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our warehouse.
This model is characterized by dimensions Ø10x10 mm, which, at a weight of 5.89 g, makes it an element with high magnetic energy density. The key parameter here is the holding force amounting to approximately 3.18 kg (force ~31.15 N), which, with such compact dimensions, proves the high grade of the NdFeB material. The product has a [NiCuNi] coating, which protects the surface against oxidation, giving it an aesthetic, silvery shine.
This cylinder is magnetized axially (along the height of 10 mm), which means that the N and S poles are located on the flat, circular surfaces. Such an arrangement is standard when connecting magnets in stacks (e.g., in filters) or when mounting in sockets at the bottom of a hole. On request, we can also produce versions magnetized diametrically if your project requires it.

Advantages and disadvantages of neodymium magnets.

Pros

In addition to their pulling strength, neodymium magnets provide the following advantages:
  • They have constant strength, and over around ten years their performance decreases symbolically – ~1% (according to theory),
  • They show high resistance to demagnetization induced by external magnetic fields,
  • By covering with a lustrous layer of nickel, the element has an nice look,
  • They feature high magnetic induction at the operating surface, making them more effective,
  • Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the form) even at high temperatures reaching 230°C or more...
  • Thanks to freedom in designing and the capacity to customize to client solutions,
  • Versatile presence in modern industrial fields – they serve a role in computer drives, electric drive systems, medical devices, as well as modern systems.
  • Thanks to their power density, small magnets offer high operating force, occupying minimum space,

Disadvantages

Disadvantages of neodymium magnets:
  • Brittleness is one of their disadvantages. Upon strong impact they can break. We advise keeping them in a steel housing, which not only secures them against impacts but also increases their durability
  • We warn that neodymium magnets can reduce their power at high temperatures. To prevent this, we recommend our specialized [AH] magnets, which work effectively even at 230°C.
  • They rust in a humid environment - during use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
  • Limited ability of creating threads in the magnet and complicated forms - recommended is a housing - mounting mechanism.
  • Health risk to health – tiny shards of magnets pose a threat, if swallowed, which gains importance in the aspect of protecting the youngest. Furthermore, small elements of these devices can complicate diagnosis medical in case of swallowing.
  • Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Lifting parameters

Breakaway strength of the magnet in ideal conditionswhat it depends on?

Breakaway force was determined for the most favorable conditions, assuming:
  • on a base made of mild steel, perfectly concentrating the magnetic field
  • with a cross-section of at least 10 mm
  • with an ground touching surface
  • with zero gap (no impurities)
  • for force applied at a right angle (pull-off, not shear)
  • in stable room temperature

Impact of factors on magnetic holding capacity in practice

Please note that the magnet holding will differ influenced by elements below, in order of importance:
  • Space between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by veneer or dirt) diminishes the pulling force, often by half at just 0.5 mm.
  • Direction of force – highest force is obtained only during perpendicular pulling. The resistance to sliding of the magnet along the plate is typically many times lower (approx. 1/5 of the lifting capacity).
  • Substrate thickness – for full efficiency, the steel must be adequately massive. Thin sheet restricts the lifting capacity (the magnet "punches through" it).
  • Material composition – not every steel reacts the same. High carbon content weaken the interaction with the magnet.
  • Base smoothness – the more even the surface, the better the adhesion and stronger the hold. Roughness creates an air distance.
  • Thermal factor – high temperature reduces pulling force. Exceeding the limit temperature can permanently demagnetize the magnet.

Holding force was checked on the plate surface of 20 mm thickness, when the force acted perpendicularly, whereas under attempts to slide the magnet the lifting capacity is smaller. Additionally, even a minimal clearance between the magnet’s surface and the plate decreases the load capacity.

Warnings
This is not a toy

Product intended for adults. Small elements can be swallowed, causing severe trauma. Keep out of reach of children and animals.

Protective goggles

Beware of splinters. Magnets can explode upon violent connection, launching sharp fragments into the air. Wear goggles.

Machining danger

Powder produced during grinding of magnets is flammable. Avoid drilling into magnets without proper cooling and knowledge.

Pinching danger

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

Compass and GPS

Be aware: neodymium magnets produce a field that interferes with sensitive sensors. Keep a separation from your phone, tablet, and navigation systems.

Thermal limits

Watch the temperature. Heating the magnet above 80 degrees Celsius will destroy its properties and pulling force.

Handling rules

Use magnets consciously. Their powerful strength can surprise even experienced users. Be vigilant and do not underestimate their force.

Protect data

Do not bring magnets close to a wallet, computer, or TV. The magnetic field can irreversibly ruin these devices and erase data from cards.

Medical interference

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

Avoid contact if allergic

Nickel alert: The Ni-Cu-Ni coating contains nickel. If redness happens, immediately stop handling magnets and wear gloves.

Warning! Learn more about risks in the article: Safety of working with magnets.
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98