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MW 10x4 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010010

GTIN/EAN: 5906301810094

5.00
Load capacity 2.80 kg / 27.42 N Magnetic Induction 386.91 mT / 3869 Gs
Diameter Ø
10 mm [±0,1 mm]
Height
4 mm [±0,1 mm]
Weight
2.36 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

0.830 zł net / pcs

1.021 zł with VAT (23% VAT) / pcs

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Net
Gross
price from 1 pcs
0.830 zł
1.021 zł
price from 1125 pcs
0.730 zł
0.898 zł
price from 2250 pcs
0.705 zł
0.868 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.

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.

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Physical properties - MW 10x4 / N38 - cylindrical magnet

Specification / characteristics - MW 10x4 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010010
GTIN/EAN 5906301810094
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 4 mm [±0,1 mm]
Weight 2.36 g
Magnetization Direction ↑ axial
Load capacity ~ ? 2.80 kg / 27.42 N
Magnetic Induction ~ ? 386.91 mT / 3869 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 10x4 / 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 simulation of the assembly - data

These information constitute the outcome of a engineering simulation. Results rely on algorithms for the material Nd2Fe14B. Actual conditions may differ from theoretical values. Please consider these calculations as a reference point when designing systems.

Table 1: Static pull force (force vs distance) - power drop
MW 10x4 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 3867 Gs
386.7 mT
2.80 kg / 6.17 lbs
2800.0 g / 27.5 N
strong
1 mm 3168 Gs
316.8 mT
1.88 kg / 4.14 lbs
1879.8 g / 18.4 N
low risk
2 mm 2460 Gs
246.0 mT
1.13 kg / 2.50 lbs
1133.7 g / 11.1 N
low risk
3 mm 1855 Gs
185.5 mT
0.64 kg / 1.42 lbs
644.6 g / 6.3 N
low risk
5 mm 1036 Gs
103.6 mT
0.20 kg / 0.44 lbs
200.9 g / 2.0 N
low risk
10 mm 293 Gs
29.3 mT
0.02 kg / 0.04 lbs
16.1 g / 0.2 N
low risk
15 mm 114 Gs
11.4 mT
0.00 kg / 0.01 lbs
2.4 g / 0.0 N
low risk
20 mm 55 Gs
5.5 mT
0.00 kg / 0.00 lbs
0.6 g / 0.0 N
low risk
30 mm 18 Gs
1.8 mT
0.00 kg / 0.00 lbs
0.1 g / 0.0 N
low risk
50 mm 4 Gs
0.4 mT
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
low risk

Table 2: Slippage hold (vertical surface)
MW 10x4 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.56 kg / 1.23 lbs
560.0 g / 5.5 N
1 mm Stal (~0.2) 0.38 kg / 0.83 lbs
376.0 g / 3.7 N
2 mm Stal (~0.2) 0.23 kg / 0.50 lbs
226.0 g / 2.2 N
3 mm Stal (~0.2) 0.13 kg / 0.28 lbs
128.0 g / 1.3 N
5 mm Stal (~0.2) 0.04 kg / 0.09 lbs
40.0 g / 0.4 N
10 mm Stal (~0.2) 0.00 kg / 0.01 lbs
4.0 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

Table 3: Wall mounting (sliding) - vertical pull
MW 10x4 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.84 kg / 1.85 lbs
840.0 g / 8.2 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.56 kg / 1.23 lbs
560.0 g / 5.5 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.28 kg / 0.62 lbs
280.0 g / 2.7 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
1.40 kg / 3.09 lbs
1400.0 g / 13.7 N

Table 4: Material efficiency (saturation) - sheet metal selection
MW 10x4 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
0.28 kg / 0.62 lbs
280.0 g / 2.7 N
1 mm
25%
0.70 kg / 1.54 lbs
700.0 g / 6.9 N
2 mm
50%
1.40 kg / 3.09 lbs
1400.0 g / 13.7 N
3 mm
75%
2.10 kg / 4.63 lbs
2100.0 g / 20.6 N
5 mm
100%
2.80 kg / 6.17 lbs
2800.0 g / 27.5 N
10 mm
100%
2.80 kg / 6.17 lbs
2800.0 g / 27.5 N
11 mm
100%
2.80 kg / 6.17 lbs
2800.0 g / 27.5 N
12 mm
100%
2.80 kg / 6.17 lbs
2800.0 g / 27.5 N

Table 5: Thermal stability (stability) - resistance threshold
MW 10x4 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 2.80 kg / 6.17 lbs
2800.0 g / 27.5 N
OK
40 °C -2.2% 2.74 kg / 6.04 lbs
2738.4 g / 26.9 N
OK
60 °C -4.4% 2.68 kg / 5.90 lbs
2676.8 g / 26.3 N
80 °C -6.6% 2.62 kg / 5.77 lbs
2615.2 g / 25.7 N
100 °C -28.8% 1.99 kg / 4.40 lbs
1993.6 g / 19.6 N

Table 6: Two magnets (repulsion) - field collision
MW 10x4 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 7.24 kg / 15.96 lbs
5 247 Gs
1.09 kg / 2.39 lbs
1086 g / 10.7 N
N/A
1 mm 6.04 kg / 13.31 lbs
7 061 Gs
0.91 kg / 2.00 lbs
905 g / 8.9 N
5.43 kg / 11.98 lbs
~0 Gs
2 mm 4.86 kg / 10.71 lbs
6 336 Gs
0.73 kg / 1.61 lbs
729 g / 7.2 N
4.37 kg / 9.64 lbs
~0 Gs
3 mm 3.81 kg / 8.41 lbs
5 612 Gs
0.57 kg / 1.26 lbs
572 g / 5.6 N
3.43 kg / 7.56 lbs
~0 Gs
5 mm 2.22 kg / 4.90 lbs
4 283 Gs
0.33 kg / 0.73 lbs
333 g / 3.3 N
2.00 kg / 4.41 lbs
~0 Gs
10 mm 0.52 kg / 1.15 lbs
2 071 Gs
0.08 kg / 0.17 lbs
78 g / 0.8 N
0.47 kg / 1.03 lbs
~0 Gs
20 mm 0.04 kg / 0.09 lbs
587 Gs
0.01 kg / 0.01 lbs
6 g / 0.1 N
0.04 kg / 0.08 lbs
~0 Gs
50 mm 0.00 kg / 0.00 lbs
61 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
37 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
24 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
16 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
12 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
9 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
0.00 kg / 0.00 lbs
~0 Gs

Table 7: Safety (HSE) (electronics) - precautionary measures
MW 10x4 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 5.0 cm
Hearing aid 10 Gs (1.0 mT) 4.0 cm
Timepiece 20 Gs (2.0 mT) 3.0 cm
Phone / Smartphone 40 Gs (4.0 mT) 2.5 cm
Remote 50 Gs (5.0 mT) 2.5 cm
Payment card 400 Gs (40.0 mT) 1.0 cm
HDD hard drive 600 Gs (60.0 mT) 1.0 cm

Table 8: Impact energy (cracking risk) - collision effects
MW 10x4 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 25.00 km/h
(6.94 m/s)
0.06 J
30 mm 25.09 km/h
(6.97 m/s)
0.06 J
50 mm 25.09 km/h
(6.97 m/s)
0.06 J
100 mm 25.09 km/h
(6.97 m/s)
0.06 J

Table 9: Anti-corrosion coating durability
MW 10x4 / 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 10x4 / N38

Parameter Value SI Unit / Description
Magnetic Flux 3 142 Mx 31.4 µWb
Pc Coefficient 0.50 Low (Flat)

Table 11: Physics of underwater searching
MW 10x4 / N38

Environment Effective steel pull Effect
Air (land) 2.80 kg Standard
Water (riverbed) 3.21 kg
(+0.41 kg buoyancy gain)
+14.5%
Warning: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!

1. Vertical hold

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

2. Steel saturation

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

3. Heat tolerance

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) = 0.50

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

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%

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: 010010-2026
Magnet Unit Converter

Pulling force


Magnetic Induction

Other deals

The presented product is an incredibly powerful cylindrical magnet, made from advanced NdFeB material, which, with dimensions of Ø10x4 mm, guarantees optimal power. The MW 10x4 / N38 model boasts an accuracy of ±0.1mm and industrial build quality, making it an ideal solution for the most demanding engineers and designers. As a cylindrical magnet with impressive force (approx. 2.80 kg), this product is in stock from our European logistics center, ensuring lightning-fast order fulfillment. Additionally, its triple-layer Ni-Cu-Ni coating shields it against corrosion in typical 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 27.42 N with a weight of only 2.36 g, this rod is indispensable in electronics and wherever low weight is crucial.
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 stability in industry, specialized industrial adhesives are used, which are safe for nickel and fill the gap, guaranteeing high repeatability 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 Ø10x4 mm, which, at a weight of 2.36 g, makes it an element with high magnetic energy density. The value of 27.42 N means that the magnet is capable of holding a weight many times exceeding its own mass of 2.36 g. The product has a [NiCuNi] coating, which secures it against external factors, 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 10 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 as well as disadvantages of Nd2Fe14B magnets.

Strengths

Apart from their superior magnetism, neodymium magnets have these key benefits:
  • Their power is durable, and after approximately ten years it drops only by ~1% (theoretically),
  • Neodymium magnets are characterized by highly resistant to loss of magnetic properties caused by external interference,
  • In other words, due to the smooth layer of nickel, the element looks attractive,
  • They are known for high magnetic induction at the operating surface, which increases their power,
  • Thanks to resistance to high temperature, they are capable of working (depending on the form) even at temperatures up to 230°C and higher...
  • Thanks to the option of flexible molding and adaptation to unique projects, NdFeB magnets can be modeled in a broad palette of forms and dimensions, which increases their versatility,
  • Wide application in advanced technology sectors – they are utilized in computer drives, electric motors, medical devices, also modern systems.
  • Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Limitations

Disadvantages of NdFeB magnets:
  • They are fragile upon too strong impacts. To avoid cracks, it is worth securing magnets in a protective case. Such protection not only shields the magnet but also improves its resistance to damage
  • Do not exceed this material temperature limit: 80°C. Overheating may permanently weaken the magnet.
  • Magnets exposed to a humid environment can corrode. Therefore when using outdoors, we suggest using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
  • Due to limitations in producing nuts and complex forms in magnets, we propose using cover - magnetic mechanism.
  • Health risk related to microscopic parts of magnets are risky, in case of ingestion, which is particularly important in the context of child safety. Furthermore, tiny parts of these products can disrupt the diagnostic process medical when they are in the body.
  • High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which can limit application in large quantities

Pull force analysis

Maximum lifting capacity of the magnet – what affects it?

Breakaway force is the result of a measurement for ideal contact conditions, taking into account:
  • using a sheet made of low-carbon steel, functioning as a circuit closing element
  • possessing a massiveness of min. 10 mm to ensure full flux closure
  • characterized by smoothness
  • without the slightest insulating layer between the magnet and steel
  • during detachment in a direction perpendicular to the mounting surface
  • at room temperature

Key elements affecting lifting force

Real force is influenced by specific conditions, such as (from most important):
  • Gap between surfaces – even a fraction of a millimeter of distance (caused e.g. by veneer or dirt) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
  • Force direction – catalog parameter refers to detachment vertically. When applying parallel force, the magnet exhibits much less (often approx. 20-30% of maximum force).
  • Wall thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field passes through the material instead of converting into lifting capacity.
  • Metal type – not every steel reacts the same. Alloy additives worsen the interaction with the magnet.
  • Surface condition – ground elements guarantee perfect abutment, which increases force. Uneven metal weaken the grip.
  • Operating temperature – neodymium magnets have a negative temperature coefficient. When it is hot they lose power, and in frost gain strength (up to a certain limit).

Holding force was measured on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, in contrast under attempts to slide the magnet the holding force is lower. Moreover, even a slight gap between the magnet’s surface and the plate lowers the holding force.

Precautions when working with NdFeB magnets
Safe operation

Before starting, check safety instructions. Uncontrolled attraction can destroy the magnet or hurt your hand. Be predictive.

Risk of cracking

Despite the nickel coating, the material is delicate and not impact-resistant. Do not hit, as the magnet may crumble into hazardous fragments.

Cards and drives

Intense magnetic fields can corrupt files on payment cards, hard drives, and storage devices. Keep a distance of min. 10 cm.

Serious injuries

Protect your hands. Two powerful magnets will snap together immediately with a force of several hundred kilograms, crushing anything in their path. Exercise extreme caution!

Operating temperature

Watch the temperature. Heating the magnet to high heat will destroy its magnetic structure and strength.

Warning for allergy sufferers

Some people suffer from a contact allergy to nickel, which is the typical protective layer for NdFeB magnets. Frequent touching can result in dermatitis. We suggest use protective gloves.

Life threat

Warning for patients: Powerful magnets disrupt electronics. Keep minimum 30 cm distance or request help to handle the magnets.

This is not a toy

Adult use only. Small elements pose a choking risk, leading to serious injuries. Keep out of reach of kids and pets.

Threat to navigation

An intense magnetic field disrupts the operation of compasses in phones and GPS navigation. Keep magnets close to a device to avoid breaking the sensors.

Fire warning

Powder produced during cutting of magnets is flammable. Avoid drilling into magnets unless you are an expert.

Important! Looking for details? Check our post: Why are neodymium magnets dangerous?