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

MW 100x10 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010001

GTIN/EAN: 5906301810018

5.00
Load capacity 40.86 kg / 400.80 N Magnetic Induction 121.59 mT / 1216 Gs
Diameter Ø
100 mm [±0,1 mm]
Height
10 mm [±0,1 mm]
Weight
589.05 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

299.59net / pcs

368.50 zł with VAT (23% VAT) / pcs

price for transport

bulk discounts:

Need more?

Quantity
Net
Gross
price from 1 pcs
299.59 zł
368.50 zł
price from 5 pcs
281.61 zł
346.39 zł
price from 10 pcs
263.64 zł
324.28 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.

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.

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 parameters of the product - MW 100x10 / N38 - cylindrical magnet

Specification / characteristics - MW 100x10 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010001
GTIN/EAN 5906301810018
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 100 mm [±0,1 mm]
Height 10 mm [±0,1 mm]
Weight 589.05 g
Magnetization Direction ↑ axial
Load capacity ~ ? 40.86 kg / 400.80 N
Magnetic Induction ~ ? 121.59 mT / 1216 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 100x10 / 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

Technical simulation of the product - data

Presented data are the direct effect of a mathematical simulation. Values were calculated on models for the material Nd2Fe14B. Operational parameters may differ. Use these data as a preliminary roadmap when designing systems.

Table 1: Static force (force vs gap) - interaction chart
MW 100x10 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 1216 Gs
121.6 mT
40.86 kg / 90.08 pounds
40860.0 g / 400.8 N
crushing
1 mm 1208 Gs
120.8 mT
40.35 kg / 88.95 pounds
40345.4 g / 395.8 N
crushing
2 mm 1199 Gs
119.9 mT
39.74 kg / 87.62 pounds
39742.7 g / 389.9 N
crushing
3 mm 1189 Gs
118.9 mT
39.06 kg / 86.12 pounds
39062.0 g / 383.2 N
crushing
5 mm 1165 Gs
116.5 mT
37.49 kg / 82.65 pounds
37490.2 g / 367.8 N
crushing
10 mm 1087 Gs
108.7 mT
32.64 kg / 71.96 pounds
32640.7 g / 320.2 N
crushing
15 mm 991 Gs
99.1 mT
27.15 kg / 59.86 pounds
27153.9 g / 266.4 N
crushing
20 mm 887 Gs
88.7 mT
21.76 kg / 47.97 pounds
21758.7 g / 213.5 N
crushing
30 mm 683 Gs
68.3 mT
12.90 kg / 28.45 pounds
12902.7 g / 126.6 N
crushing
50 mm 379 Gs
37.9 mT
3.97 kg / 8.75 pounds
3968.4 g / 38.9 N
strong

Table 2: Vertical capacity (vertical surface)
MW 100x10 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 8.17 kg / 18.02 pounds
8172.0 g / 80.2 N
1 mm Stal (~0.2) 8.07 kg / 17.79 pounds
8070.0 g / 79.2 N
2 mm Stal (~0.2) 7.95 kg / 17.52 pounds
7948.0 g / 78.0 N
3 mm Stal (~0.2) 7.81 kg / 17.22 pounds
7812.0 g / 76.6 N
5 mm Stal (~0.2) 7.50 kg / 16.53 pounds
7498.0 g / 73.6 N
10 mm Stal (~0.2) 6.53 kg / 14.39 pounds
6528.0 g / 64.0 N
15 mm Stal (~0.2) 5.43 kg / 11.97 pounds
5430.0 g / 53.3 N
20 mm Stal (~0.2) 4.35 kg / 9.59 pounds
4352.0 g / 42.7 N
30 mm Stal (~0.2) 2.58 kg / 5.69 pounds
2580.0 g / 25.3 N
50 mm Stal (~0.2) 0.79 kg / 1.75 pounds
794.0 g / 7.8 N

Table 3: Vertical assembly (sliding) - vertical pull
MW 100x10 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
12.26 kg / 27.02 pounds
12258.0 g / 120.3 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
8.17 kg / 18.02 pounds
8172.0 g / 80.2 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
4.09 kg / 9.01 pounds
4086.0 g / 40.1 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
20.43 kg / 45.04 pounds
20430.0 g / 200.4 N

Table 4: Material efficiency (saturation) - power losses
MW 100x10 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
5%
2.04 kg / 4.50 pounds
2043.0 g / 20.0 N
1 mm
13%
5.11 kg / 11.26 pounds
5107.5 g / 50.1 N
2 mm
25%
10.22 kg / 22.52 pounds
10215.0 g / 100.2 N
3 mm
38%
15.32 kg / 33.78 pounds
15322.5 g / 150.3 N
5 mm
63%
25.54 kg / 56.30 pounds
25537.5 g / 250.5 N
10 mm
100%
40.86 kg / 90.08 pounds
40860.0 g / 400.8 N
11 mm
100%
40.86 kg / 90.08 pounds
40860.0 g / 400.8 N
12 mm
100%
40.86 kg / 90.08 pounds
40860.0 g / 400.8 N

Table 5: Thermal stability (stability) - power drop
MW 100x10 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 40.86 kg / 90.08 pounds
40860.0 g / 400.8 N
OK
40 °C -2.2% 39.96 kg / 88.10 pounds
39961.1 g / 392.0 N
OK
60 °C -4.4% 39.06 kg / 86.12 pounds
39062.2 g / 383.2 N
80 °C -6.6% 38.16 kg / 84.14 pounds
38163.2 g / 374.4 N
100 °C -28.8% 29.09 kg / 64.14 pounds
29092.3 g / 285.4 N

Table 6: Magnet-Magnet interaction (repulsion) - field collision
MW 100x10 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Strength (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 71.58 kg / 157.80 pounds
2 302 Gs
10.74 kg / 23.67 pounds
10737 g / 105.3 N
N/A
1 mm 71.15 kg / 156.86 pounds
2 424 Gs
10.67 kg / 23.53 pounds
10673 g / 104.7 N
64.04 kg / 141.17 pounds
~0 Gs
2 mm 70.68 kg / 155.82 pounds
2 416 Gs
10.60 kg / 23.37 pounds
10602 g / 104.0 N
63.61 kg / 140.23 pounds
~0 Gs
3 mm 70.17 kg / 154.69 pounds
2 408 Gs
10.53 kg / 23.20 pounds
10525 g / 103.3 N
63.15 kg / 139.22 pounds
~0 Gs
5 mm 69.04 kg / 152.21 pounds
2 388 Gs
10.36 kg / 22.83 pounds
10356 g / 101.6 N
62.14 kg / 136.99 pounds
~0 Gs
10 mm 65.68 kg / 144.79 pounds
2 329 Gs
9.85 kg / 21.72 pounds
9851 g / 96.6 N
59.11 kg / 130.31 pounds
~0 Gs
20 mm 57.18 kg / 126.06 pounds
2 173 Gs
8.58 kg / 18.91 pounds
8577 g / 84.1 N
51.46 kg / 113.45 pounds
~0 Gs
50 mm 29.67 kg / 65.40 pounds
1 565 Gs
4.45 kg / 9.81 pounds
4450 g / 43.7 N
26.70 kg / 58.86 pounds
~0 Gs
60 mm 22.60 kg / 49.83 pounds
1 366 Gs
3.39 kg / 7.47 pounds
3390 g / 33.3 N
20.34 kg / 44.85 pounds
~0 Gs
70 mm 16.98 kg / 37.43 pounds
1 184 Gs
2.55 kg / 5.61 pounds
2546 g / 25.0 N
15.28 kg / 33.68 pounds
~0 Gs
80 mm 12.64 kg / 27.87 pounds
1 022 Gs
1.90 kg / 4.18 pounds
1896 g / 18.6 N
11.38 kg / 25.08 pounds
~0 Gs
90 mm 9.38 kg / 20.67 pounds
880 Gs
1.41 kg / 3.10 pounds
1406 g / 13.8 N
8.44 kg / 18.60 pounds
~0 Gs
100 mm 6.95 kg / 15.33 pounds
758 Gs
1.04 kg / 2.30 pounds
1043 g / 10.2 N
6.26 kg / 13.79 pounds
~0 Gs

Table 7: Protective zones (electronics) - warnings
MW 100x10 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 31.0 cm
Hearing aid 10 Gs (1.0 mT) 24.0 cm
Timepiece 20 Gs (2.0 mT) 19.0 cm
Mobile device 40 Gs (4.0 mT) 14.5 cm
Remote 50 Gs (5.0 mT) 13.5 cm
Payment card 400 Gs (40.0 mT) 5.0 cm
HDD hard drive 600 Gs (60.0 mT) 3.5 cm

Table 8: Dynamics (kinetic energy) - collision effects
MW 100x10 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 12.68 km/h
(3.52 m/s)
3.65 J
30 mm 18.75 km/h
(5.21 m/s)
7.99 J
50 mm 20.43 km/h
(5.68 m/s)
9.49 J
100 mm 21.11 km/h
(5.87 m/s)
10.13 J

Table 9: Corrosion resistance
MW 100x10 / 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 100x10 / N38

Parameter Value SI Unit / Description
Magnetic Flux 125 951 Mx 1259.5 µWb
Pc Coefficient 0.16 Low (Flat)

Table 11: Hydrostatics and buoyancy
MW 100x10 / N38

Environment Effective steel pull Effect
Air (land) 40.86 kg Standard
Water (riverbed) 46.78 kg
(+5.92 kg buoyancy gain)
+14.5%
Rust risk: Remember to wipe the magnet thoroughly after removing it from water and apply a protective layer (e.g., oil) to avoid corrosion.

1. Shear force

*Note: On a vertical surface, the magnet retains merely approx. 20-30% of its nominal pull.

2. Steel thickness impact

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

3. Power loss vs temp

*For N38 grade, the max working temp is 80°C.

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.16

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.

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%

Environmental data

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: 010001-2026
Quick Unit Converter

Pulling force


Magnetic Induction

Other offers

The offered product is a very strong cylinder magnet, manufactured from modern NdFeB material, which, with dimensions of Ø100x10 mm, guarantees maximum efficiency. The MW 100x10 / N38 component features a tolerance of ±0.1mm and professional build quality, making it an excellent solution for the most demanding engineers and designers. As a cylindrical magnet with significant force (approx. 40.86 kg), this product is in stock from our warehouse in Poland, ensuring lightning-fast order fulfillment. Furthermore, its Ni-Cu-Ni coating effectively protects it against corrosion in standard operating conditions, guaranteeing an aesthetic appearance and durability for years.
It finds application in modeling, advanced automation, and broadly understood industry, serving as a fastening or actuating element. Thanks to the pull force of 400.80 N with a weight of only 589.05 g, this cylindrical magnet is indispensable in miniature devices and wherever low weight is crucial.
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 precision component. To ensure stability in industry, specialized industrial adhesives are used, which do not react with the nickel coating and fill the gap, guaranteeing durability 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 the strongest magnets in the same volume (Ø100x10), 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 Ø100x10 mm, which, at a weight of 589.05 g, makes it an element with impressive magnetic energy density. The key parameter here is the lifting capacity amounting to approximately 40.86 kg (force ~400.80 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.
This rod magnet 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 most desirable 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.

Strengths as well as weaknesses of neodymium magnets.

Advantages

Besides their immense pulling force, neodymium magnets offer the following advantages:
  • They retain attractive force for around 10 years – the loss is just ~1% (in theory),
  • They show high resistance to demagnetization induced by external disturbances,
  • By using a decorative layer of gold, the element presents an modern look,
  • Magnets are characterized by impressive magnetic induction on the outer side,
  • Thanks to resistance to high temperature, they are able to function (depending on the form) even at temperatures up to 230°C and higher...
  • Thanks to the possibility of free molding and customization to specialized projects, neodymium magnets can be modeled in a wide range of forms and dimensions, which increases their versatility,
  • Huge importance in future technologies – they are utilized in data components, drive modules, precision medical tools, as well as industrial machines.
  • Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in small dimensions, which makes them useful in small systems

Cons

Disadvantages of NdFeB magnets:
  • Brittleness is one of their disadvantages. Upon intense impact they can fracture. We advise keeping them in a special holder, which not only secures them against impacts but also raises their 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, as well as 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 immune to moisture, in case of application outdoors
  • We suggest casing - magnetic mount, due to difficulties in producing threads inside the magnet and complicated shapes.
  • Potential hazard related to microscopic parts of magnets are risky, if swallowed, which is particularly important in the aspect of protecting the youngest. Additionally, tiny parts of these devices can disrupt the diagnostic process medical after entering the body.
  • High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which hinders application in large quantities

Holding force characteristics

Optimal lifting capacity of a neodymium magnetwhat contributes to it?

Holding force of 40.86 kg is a result of laboratory testing executed under the following configuration:
  • on a plate made of structural steel, perfectly concentrating the magnetic flux
  • possessing a massiveness of minimum 10 mm to ensure full flux closure
  • with a plane perfectly flat
  • under conditions of no distance (metal-to-metal)
  • during pulling in a direction perpendicular to the mounting surface
  • at temperature room level

Practical lifting capacity: influencing factors

It is worth knowing that the application force may be lower depending on elements below, starting with the most relevant:
  • Distance (between the magnet and the plate), as even a tiny clearance (e.g. 0.5 mm) leads to a decrease in force by up to 50% (this also applies to paint, rust or dirt).
  • Force direction – remember that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the nominal value.
  • Metal thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field passes through the material instead of converting into lifting capacity.
  • Steel type – low-carbon steel attracts best. Higher carbon content reduce magnetic permeability and lifting capacity.
  • Plate texture – smooth surfaces guarantee perfect abutment, which increases force. Rough surfaces weaken the grip.
  • Heat – NdFeB sinters have a sensitivity to temperature. At higher temperatures they are weaker, and at low temperatures gain strength (up to a certain limit).

Lifting capacity was measured with the use of a polished steel plate of optimal thickness (min. 20 mm), under perpendicular detachment force, whereas under parallel forces the load capacity is reduced by as much as fivefold. In addition, even a slight gap between the magnet and the plate decreases the load capacity.

Precautions when working with neodymium magnets
Heat sensitivity

Control the heat. Heating the magnet above 80 degrees Celsius will permanently weaken its magnetic structure and pulling force.

Risk of cracking

Neodymium magnets are ceramic materials, meaning they are prone to chipping. Impact of two magnets leads to them shattering into small pieces.

Keep away from children

Always keep magnets away from children. Ingestion danger is high, and the effects of magnets connecting inside the body are tragic.

Compass and GPS

Remember: neodymium magnets generate a field that interferes with sensitive sensors. Maintain a separation from your phone, tablet, and GPS.

Data carriers

Powerful magnetic fields can erase data on credit cards, HDDs, and storage devices. Stay away of min. 10 cm.

Dust explosion hazard

Fire hazard: Rare earth powder is highly flammable. Avoid machining magnets in home conditions as this risks ignition.

Pinching danger

Watch your fingers. Two powerful magnets will join immediately with a force of several hundred kilograms, crushing anything in their path. Exercise extreme caution!

Do not underestimate power

Use magnets consciously. Their immense force can shock even experienced users. Be vigilant and do not underestimate their power.

Health Danger

Life threat: Strong magnets can deactivate heart devices and defibrillators. Stay away if you have electronic implants.

Allergic reactions

Nickel alert: The Ni-Cu-Ni coating consists of nickel. If an allergic reaction happens, immediately stop working with magnets and use protective gear.

Security! Need more info? Read our article: Why are neodymium magnets dangerous?