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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 modeling of the assembly - technical parameters

These information constitute the direct effect of a engineering simulation. Values rely on algorithms for the material Nd2Fe14B. Real-world performance may differ. Use these calculations as a reference point when designing systems.

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

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 5534 Gs
553.4 mT
3.18 kg / 7.01 pounds
3180.0 g / 31.2 N
strong
1 mm 4428 Gs
442.8 mT
2.04 kg / 4.49 pounds
2036.1 g / 20.0 N
strong
2 mm 3420 Gs
342.0 mT
1.21 kg / 2.68 pounds
1214.8 g / 11.9 N
low risk
3 mm 2597 Gs
259.7 mT
0.70 kg / 1.54 pounds
700.2 g / 6.9 N
low risk
5 mm 1498 Gs
149.8 mT
0.23 kg / 0.51 pounds
232.9 g / 2.3 N
low risk
10 mm 469 Gs
46.9 mT
0.02 kg / 0.05 pounds
22.9 g / 0.2 N
low risk
15 mm 198 Gs
19.8 mT
0.00 kg / 0.01 pounds
4.1 g / 0.0 N
low risk
20 mm 101 Gs
10.1 mT
0.00 kg / 0.00 pounds
1.1 g / 0.0 N
low risk
30 mm 36 Gs
3.6 mT
0.00 kg / 0.00 pounds
0.1 g / 0.0 N
low risk
50 mm 9 Gs
0.9 mT
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
low risk

Table 2: Slippage hold (vertical surface)
MW 10x10 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.64 kg / 1.40 pounds
636.0 g / 6.2 N
1 mm Stal (~0.2) 0.41 kg / 0.90 pounds
408.0 g / 4.0 N
2 mm Stal (~0.2) 0.24 kg / 0.53 pounds
242.0 g / 2.4 N
3 mm Stal (~0.2) 0.14 kg / 0.31 pounds
140.0 g / 1.4 N
5 mm Stal (~0.2) 0.05 kg / 0.10 pounds
46.0 g / 0.5 N
10 mm Stal (~0.2) 0.00 kg / 0.01 pounds
4.0 g / 0.0 N
15 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
20 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
30 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
50 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N

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

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.95 kg / 2.10 pounds
954.0 g / 9.4 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.64 kg / 1.40 pounds
636.0 g / 6.2 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.32 kg / 0.70 pounds
318.0 g / 3.1 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
1.59 kg / 3.51 pounds
1590.0 g / 15.6 N

Table 4: Steel thickness (saturation) - sheet metal selection
MW 10x10 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
0.32 kg / 0.70 pounds
318.0 g / 3.1 N
1 mm
25%
0.80 kg / 1.75 pounds
795.0 g / 7.8 N
2 mm
50%
1.59 kg / 3.51 pounds
1590.0 g / 15.6 N
3 mm
75%
2.39 kg / 5.26 pounds
2385.0 g / 23.4 N
5 mm
100%
3.18 kg / 7.01 pounds
3180.0 g / 31.2 N
10 mm
100%
3.18 kg / 7.01 pounds
3180.0 g / 31.2 N
11 mm
100%
3.18 kg / 7.01 pounds
3180.0 g / 31.2 N
12 mm
100%
3.18 kg / 7.01 pounds
3180.0 g / 31.2 N

Table 5: Thermal stability (stability) - resistance threshold
MW 10x10 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 3.18 kg / 7.01 pounds
3180.0 g / 31.2 N
OK
40 °C -2.2% 3.11 kg / 6.86 pounds
3110.0 g / 30.5 N
OK
60 °C -4.4% 3.04 kg / 6.70 pounds
3040.1 g / 29.8 N
OK
80 °C -6.6% 2.97 kg / 6.55 pounds
2970.1 g / 29.1 N
100 °C -28.8% 2.26 kg / 4.99 pounds
2264.2 g / 22.2 N

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MW 10x10 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Lateral Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 14.83 kg / 32.69 pounds
6 003 Gs
2.22 kg / 4.90 pounds
2224 g / 21.8 N
N/A
1 mm 12.01 kg / 26.48 pounds
9 962 Gs
1.80 kg / 3.97 pounds
1802 g / 17.7 N
10.81 kg / 23.83 pounds
~0 Gs
2 mm 9.50 kg / 20.93 pounds
8 857 Gs
1.42 kg / 3.14 pounds
1424 g / 14.0 N
8.55 kg / 18.84 pounds
~0 Gs
3 mm 7.38 kg / 16.27 pounds
7 809 Gs
1.11 kg / 2.44 pounds
1107 g / 10.9 N
6.64 kg / 14.64 pounds
~0 Gs
5 mm 4.31 kg / 9.50 pounds
5 968 Gs
0.65 kg / 1.43 pounds
647 g / 6.3 N
3.88 kg / 8.55 pounds
~0 Gs
10 mm 1.09 kg / 2.39 pounds
2 996 Gs
0.16 kg / 0.36 pounds
163 g / 1.6 N
0.98 kg / 2.16 pounds
~0 Gs
20 mm 0.11 kg / 0.24 pounds
939 Gs
0.02 kg / 0.04 pounds
16 g / 0.2 N
0.10 kg / 0.21 pounds
~0 Gs
50 mm 0.00 kg / 0.00 pounds
116 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
0.00 kg / 0.00 pounds
~0 Gs
60 mm 0.00 kg / 0.00 pounds
73 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
0.00 kg / 0.00 pounds
~0 Gs
70 mm 0.00 kg / 0.00 pounds
49 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
0.00 kg / 0.00 pounds
~0 Gs
80 mm 0.00 kg / 0.00 pounds
34 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
0.00 kg / 0.00 pounds
~0 Gs
90 mm 0.00 kg / 0.00 pounds
25 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
0.00 kg / 0.00 pounds
~0 Gs
100 mm 0.00 kg / 0.00 pounds
19 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
0.00 kg / 0.00 pounds
~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
Phone / Smartphone 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: Collisions (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: Electrical 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: 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%
Rust risk: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!
1. Sliding resistance

*Warning: On a vertical surface, the magnet retains only ~20% of its perpendicular strength.

2. Steel thickness impact

*Thin metal sheet (e.g. computer case) significantly limits the holding force.

3. Power loss vs temp

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

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

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

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: 010004-2026
Measurement Calculator
Magnet pull force

Field Strength

Other proposals

The offered product is an exceptionally strong cylindrical magnet, manufactured from durable NdFeB material, which, with dimensions of Ø10x10 mm, guarantees maximum efficiency. This specific item is characterized by a tolerance of ±0.1mm and industrial build quality, making it an ideal solution for the most demanding engineers and designers. As a magnetic rod with impressive force (approx. 3.18 kg), this product is in stock from our warehouse in Poland, ensuring quick order fulfillment. Moreover, its triple-layer 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 DIY projects, advanced robotics, and broadly understood industry, serving as a fastening or actuating element. 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 low weight is crucial.
Due to the delicate structure of the ceramic sinter, you must not use force-fitting (so-called press-fit), as this risks chipping the coating of this professional component. To ensure stability in automation, specialized industrial adhesives are used, which are safe for nickel and fill the gap, guaranteeing durability of the connection.
Magnets N38 are strong enough for the majority of applications in modeling and machine building, where extreme 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 in continuous sale in our warehouse.
The presented product is a neodymium magnet with precisely defined parameters: diameter 10 mm and height 10 mm. The value of 31.15 N means that the magnet is capable of holding a weight many times exceeding its own mass of 5.89 g. The product has a [NiCuNi] coating, which protects the surface against oxidation, 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.

Strengths and weaknesses of neodymium magnets.

Pros

Besides their remarkable field intensity, neodymium magnets offer the following advantages:
  • They do not lose magnetism, even during around 10 years – the drop in lifting capacity is only ~1% (according to tests),
  • They have excellent resistance to magnetic field loss due to opposing magnetic fields,
  • By applying a lustrous coating of nickel, the element acquires an modern look,
  • The surface of neodymium magnets generates a maximum magnetic field – this is one of their assets,
  • Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can work (depending on the form) even at a temperature of 230°C or more...
  • Possibility of detailed shaping as well as adjusting to defined applications,
  • Significant place in high-tech industry – they are commonly used in mass storage devices, electric motors, precision medical tools, and modern systems.
  • Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in compact dimensions, which makes them useful in compact constructions

Disadvantages

Characteristics of disadvantages of neodymium magnets: application proposals
  • They are fragile upon too strong impacts. To avoid cracks, it is worth securing magnets using a steel holder. Such protection not only protects the magnet but also improves its resistance to damage
  • NdFeB magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of power (a factor is the shape as well as dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely resistant to heat
  • Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material resistant to moisture, when using outdoors
  • Limited ability of making threads in the magnet and complex forms - recommended is casing - magnetic holder.
  • Potential hazard resulting from small fragments of magnets pose a threat, if swallowed, which is particularly important in the context of child safety. Furthermore, small components of these devices can disrupt the diagnostic process medical when they are in the body.
  • With budget limitations the cost of neodymium magnets can be a barrier,

Pull force analysis

Maximum magnetic pulling forcewhat affects it?

The lifting capacity listed is a result of laboratory testing performed under standard conditions:
  • on a plate made of mild steel, effectively closing the magnetic flux
  • whose thickness reaches at least 10 mm
  • with an ground contact surface
  • under conditions of ideal adhesion (metal-to-metal)
  • during detachment in a direction perpendicular to the mounting surface
  • at temperature approx. 20 degrees Celsius

Magnet lifting force in use – key factors

In real-world applications, the actual holding force is determined by many variables, listed from most significant:
  • Clearance – existence of any layer (rust, tape, gap) interrupts the magnetic circuit, which reduces capacity steeply (even by 50% at 0.5 mm).
  • Pull-off angle – note that the magnet holds strongest perpendicularly. Under sliding down, the holding force drops drastically, often to levels of 20-30% of the nominal value.
  • Metal thickness – thin material does not allow full use of the magnet. Magnetic flux penetrates through instead of converting into lifting capacity.
  • Metal type – different alloys reacts the same. Alloy additives weaken the attraction effect.
  • Surface structure – the more even the surface, the larger the contact zone and higher the lifting capacity. Roughness creates an air distance.
  • Operating temperature – NdFeB sinters have a negative temperature coefficient. At higher temperatures they lose power, and in frost gain strength (up to a certain limit).

Lifting capacity was determined by applying a steel plate with a smooth surface of optimal thickness (min. 20 mm), under perpendicular detachment force, in contrast under parallel forces the holding force is lower. In addition, even a slight gap between the magnet and the plate reduces the holding force.

Safety rules for work with NdFeB magnets
Magnets are brittle

Beware of splinters. Magnets can fracture upon violent connection, ejecting shards into the air. Eye protection is mandatory.

Keep away from electronics

A strong magnetic field interferes with the operation of magnetometers in phones and GPS navigation. Maintain magnets close to a device to prevent damaging the sensors.

Do not underestimate power

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

Heat sensitivity

Monitor thermal conditions. Exposing the magnet above 80 degrees Celsius will permanently weaken its properties and strength.

Allergic reactions

Some people have a sensitization to nickel, which is the common plating for NdFeB magnets. Extended handling may cause a rash. We strongly advise wear protective gloves.

Crushing force

Large magnets can break fingers in a fraction of a second. Do not put your hand betwixt two strong magnets.

Pacemakers

Medical warning: Strong magnets can turn off heart devices and defibrillators. Do not approach if you have electronic implants.

Swallowing risk

Always keep magnets out of reach of children. Choking hazard is high, and the effects of magnets connecting inside the body are very dangerous.

Fire warning

Machining of NdFeB material poses a fire hazard. Neodymium dust reacts violently with oxygen and is difficult to extinguish.

Safe distance

Avoid bringing magnets near a purse, computer, or TV. The magnetism can destroy these devices and wipe information from cards.

Safety First! Want to know more? Read our article: Why are neodymium magnets dangerous?
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98