e-mail: bok@dhit.pl

Powerful neodymium magnets: discs and cylinders

Want to buy really powerful magnets? Our range includes rich assortment of disc, cylindrical and ring magnets. Perfect for for home use, garage and industrial tasks. Browse assortment with fast shipping.

discover magnet catalog

Equipment for treasure hunters

Discover your passion involving underwater treasure hunting! Our double-handle grips (F200, F400) provide safety guarantee and huge lifting capacity. Solid, corrosion-resistant housing and strong lines will perform in rivers and lakes.

find your set

Magnetic mounts for industry

Reliable solutions for mounting without drilling. Threaded grips (external or internal) guarantee instant organization of work on warehouses. Perfect for mounting lamps, detectors and banners.

see technical specs

📦 Fast shipping: buy by 14:00, we'll ship today!

Dhit sp. z o.o.
Product available Ships tomorrow

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

bulk discounts:

Need more?

price from 1 pcs
3.50 ZŁ
4.31 ZŁ
price from 200 pcs
3.29 ZŁ
4.05 ZŁ
price from 750 pcs
3.08 ZŁ
3.79 ZŁ
Need help making a decision?

Give us a call +48 22 499 98 98 alternatively drop us a message by means of form the contact section.
Specifications as well as structure of a magnet can be verified with our force calculator.

Orders submitted before 14:00 will be dispatched today!

Technical - 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

Physical modeling of the product - technical parameters

These data are the result of a mathematical calculation. Results rely on models for the material Nd2Fe14B. Real-world conditions might slightly differ from theoretical values. Please consider these data as a supplementary guide for designers.

Table 1: Static pull force (pull vs distance) - characteristics
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
medium risk
1 mm 4428 Gs
442.8 mT
2.04 kg / 2036.1 g
20.0 N
medium risk
2 mm 3420 Gs
342.0 mT
1.21 kg / 1214.8 g
11.9 N
safe
3 mm 2597 Gs
259.7 mT
0.70 kg / 700.2 g
6.9 N
safe
5 mm 1498 Gs
149.8 mT
0.23 kg / 232.9 g
2.3 N
safe
10 mm 469 Gs
46.9 mT
0.02 kg / 22.9 g
0.2 N
safe
15 mm 198 Gs
19.8 mT
0.00 kg / 4.1 g
0.0 N
safe
20 mm 101 Gs
10.1 mT
0.00 kg / 1.1 g
0.0 N
safe
30 mm 36 Gs
3.6 mT
0.00 kg / 0.1 g
0.0 N
safe
50 mm 9 Gs
0.9 mT
0.00 kg / 0.0 g
0.0 N
safe

Table 2: Shear load (vertical surface)
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 (sliding) - 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 (saturation) - 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: Thermal resistance (material behavior) - thermal limit
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: Magnet-Magnet interaction (repulsion) - forces in the system
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: Protective zones (electronics) - precautionary measures
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
Timepiece 20 Gs (2.0 mT) 4.0 cm
Mobile device 40 Gs (4.0 mT) 3.0 cm
Car key 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: Impact energy (kinetic energy) - warning
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: Corrosion resistance
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 (Pc)
MW 10x10 / N38

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

Table 11: Underwater work (magnet fishing)
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%
Corrosion 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 holds only ~20% of its nominal pull.

2. Plate thickness effect

*Thin metal sheet (e.g. computer case) drastically weakens 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) = 0.89

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.

Engineering data and GPSR
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%
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
Quick Unit Converter
Magnet pull force

Magnetic Induction

See also products

This product is a very strong cylindrical magnet, composed of durable NdFeB material, which, at dimensions of Ø10x10 mm, guarantees maximum efficiency. This specific item features an accuracy of ±0.1mm and professional build quality, making it an excellent solution for professional engineers and designers. As a magnetic rod with impressive force (approx. 3.18 kg), this product is available off-the-shelf from our warehouse in Poland, ensuring rapid order fulfillment. Additionally, its Ni-Cu-Ni coating secures it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.
This model is ideal for building generators, advanced Hall effect sensors, and efficient filters, where maximum induction on a small surface counts. Thanks to the pull force of 31.15 N with a weight of only 5.89 g, this rod is indispensable in electronics and wherever every gram matters.
Since our magnets have a very precise dimensions, the recommended way is to glue them into holes with a slightly larger diameter (e.g., 10.1 mm) using two-component epoxy glues. 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.
Magnets N38 are strong enough for the majority of applications in modeling and machine building, where excessive miniaturization with maximum force is not required. If you need even stronger magnets in the same volume (Ø10x10), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our warehouse.
This model is characterized by dimensions Ø10x10 mm, which, at a weight of 5.89 g, makes it an element with impressive 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. 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 and cons of Nd2Fe14B magnets.

Strengths

Apart from their strong power, neodymium magnets have these key benefits:
  • They do not lose strength, even after around ten years – the decrease in power is only ~1% (theoretically),
  • They maintain their magnetic properties even under strong external field,
  • In other words, due to the shiny layer of nickel, the element gains a professional look,
  • Neodymium magnets achieve maximum magnetic induction on a small area, which increases force concentration,
  • Through (adequate) combination of ingredients, they can achieve high thermal resistance, enabling functioning at temperatures reaching 230°C and above...
  • Thanks to flexibility in designing and the capacity to modify to individual projects,
  • Huge importance in innovative solutions – 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, in miniature format,

Disadvantages

Problematic aspects of neodymium magnets: application proposals
  • At strong impacts they can break, therefore we recommend placing them in strong housings. A metal housing provides additional protection against damage and increases the magnet's durability.
  • When exposed to high temperature, neodymium magnets experience a drop in strength. Often, when the temperature exceeds 80°C, their power 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
  • When exposed to humidity, magnets usually rust. To use them in conditions outside, it is recommended to use protective magnets, such as those in rubber or plastics, which prevent oxidation as well as corrosion.
  • We recommend casing - magnetic holder, due to difficulties in realizing nuts inside the magnet and complex shapes.
  • Possible danger related to microscopic parts of magnets are risky, if swallowed, which is particularly important in the context of child safety. Furthermore, small elements of these devices are able to complicate diagnosis 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

Optimal lifting capacity of a neodymium magnetwhat affects it?

The specified lifting capacity represents the peak performance, obtained under laboratory conditions, meaning:
  • with the contact of a sheet made of low-carbon steel, guaranteeing full magnetic saturation
  • whose thickness is min. 10 mm
  • characterized by smoothness
  • without any air gap between the magnet and steel
  • under vertical force direction (90-degree angle)
  • at conditions approx. 20°C

Lifting capacity in real conditions – factors

During everyday use, the actual lifting capacity depends on many variables, listed from the most important:
  • Distance (between the magnet and the metal), because even a tiny clearance (e.g. 0.5 mm) leads to a decrease in lifting capacity by up to 50% (this also applies to varnish, corrosion or dirt).
  • Direction of force – highest force is available only during perpendicular pulling. The shear force of the magnet along the plate is usually several times smaller (approx. 1/5 of the lifting capacity).
  • Base massiveness – too thin sheet does not accept the full field, causing part of the flux to be escaped to the other side.
  • Material composition – different alloys attracts identically. High carbon content worsen the interaction with the magnet.
  • Surface condition – smooth surfaces guarantee perfect abutment, which increases field saturation. Uneven metal weaken the grip.
  • Temperature influence – high temperature weakens magnetic field. Too high temperature can permanently demagnetize the magnet.

Lifting capacity testing was conducted on plates with a smooth surface of suitable thickness, under perpendicular forces, however under attempts to slide the magnet the holding force is lower. Additionally, even a small distance between the magnet and the plate reduces the lifting capacity.

Safety rules for work with NdFeB magnets
Metal Allergy

Nickel alert: The Ni-Cu-Ni coating contains nickel. If skin irritation occurs, immediately stop working with magnets and wear gloves.

Life threat

Patients with a pacemaker have to maintain an absolute distance from magnets. The magnetism can disrupt the functioning of the life-saving device.

Handling guide

Use magnets with awareness. Their powerful strength can surprise even experienced users. Stay alert and respect their force.

Heat sensitivity

Monitor thermal conditions. Heating the magnet to high heat will permanently weaken its properties and pulling force.

No play value

NdFeB magnets are not toys. Eating multiple magnets can lead to them connecting inside the digestive tract, which constitutes a direct threat to life and requires urgent medical intervention.

Crushing risk

Protect your hands. Two large magnets will snap together instantly with a force of massive weight, crushing anything in their path. Be careful!

Protect data

Do not bring magnets close to a wallet, computer, or screen. The magnetic field can irreversibly ruin these devices and wipe information from cards.

GPS Danger

Remember: neodymium magnets generate a field that confuses sensitive sensors. Keep a separation from your phone, tablet, and GPS.

Dust is flammable

Combustion risk: Rare earth powder is highly flammable. Do not process magnets without safety gear as this risks ignition.

Eye protection

NdFeB magnets are ceramic materials, meaning they are very brittle. Collision of two magnets leads to them cracking into small pieces.

Warning! Learn more about hazards in the article: Magnet Safety Guide.
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98