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MW 9.5x1 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010107

GTIN/EAN: 5906301811060

5.00

Diameter Ø

9.5 mm [±0,1 mm]

Height

1 mm [±0,1 mm]

Weight

0.53 g

Magnetization Direction

↑ axial

Load capacity

0.40 kg / 3.96 N

Magnetic Induction

127.68 mT / 1277 Gs

Coating

[NiCuNi] Nickel

product specifications »

0.295 ZŁ with VAT / pcs + price for transport

0.240 ZŁ net + 23% VAT / pcs

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Force as well as appearance of neodymium magnets can be analyzed using our modular calculator.

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Technical of the product - MW 9.5x1 / N38 - cylindrical magnet

Specification / characteristics - MW 9.5x1 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010107
GTIN/EAN 5906301811060
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 9.5 mm [±0,1 mm]
Height 1 mm [±0,1 mm]
Weight 0.53 g
Magnetization Direction ↑ axial
Load capacity ~ ? 0.40 kg / 3.96 N
Magnetic Induction ~ ? 127.68 mT / 1277 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 9.5x1 / 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 magnet - report

The following data are the direct effect of a engineering simulation. Results were calculated on algorithms for the material Nd2Fe14B. Actual performance might slightly differ from theoretical values. Treat these data as a reference point during assembly planning.

Table 1: Static pull force (pull vs distance) - characteristics
MW 9.5x1 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 1276 Gs
127.6 mT
 0.40 kg / 0.88 LBS
400.0 g / 3.9 N
 safe
1 mm 1129 Gs
112.9 mT
 0.31 kg / 0.69 LBS
312.8 g / 3.1 N
 safe
2 mm 905 Gs
90.5 mT
 0.20 kg / 0.44 LBS
201.0 g / 2.0 N
 safe
3 mm 683 Gs
68.3 mT
 0.11 kg / 0.25 LBS
114.5 g / 1.1 N
 safe
5 mm 366 Gs
36.6 mT
 0.03 kg / 0.07 LBS
32.9 g / 0.3 N
 safe
10 mm 92 Gs
9.2 mT
 0.00 kg / 0.00 LBS
2.1 g / 0.0 N
 safe
15 mm 33 Gs
3.3 mT
 0.00 kg / 0.00 LBS
0.3 g / 0.0 N
 safe
20 mm 15 Gs
1.5 mT
 0.00 kg / 0.00 LBS
0.1 g / 0.0 N
 safe
30 mm 5 Gs
0.5 mT
 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
 safe
50 mm 1 Gs
0.1 mT
 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
 safe
Grip strength drops sharply with every subsequent millimeter of distance. Note that even a microscopic distance (e.g., dirt, paint, dust) significantly reduces the pull force. Neodymiums hold strongest at the point of direct contact; gap drastically cuts the power. Observe how rapidly the parameters fall, when the magnet does not touch directly to the steel surface. When planning the arrangement, discard additional spacers.

Table 2: Sliding hold (wall)
MW 9.5x1 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.08 kg / 0.18 LBS
80.0 g / 0.8 N
1 mm Stal (~0.2) 0.06 kg / 0.14 LBS
62.0 g / 0.6 N
2 mm Stal (~0.2) 0.04 kg / 0.09 LBS
40.0 g / 0.4 N
3 mm Stal (~0.2) 0.02 kg / 0.05 LBS
22.0 g / 0.2 N
5 mm Stal (~0.2) 0.01 kg / 0.01 LBS
6.0 g / 0.1 N
10 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 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
The following data shows the approximate shear load needed to initiate the slippage of the magnet vertically along a vertical steel plate (considering typical friction). The holding force varies with the separation distance between the magnet and the metal.

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MW 9.5x1 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.12 kg / 0.26 LBS
120.0 g / 1.2 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.08 kg / 0.18 LBS
80.0 g / 0.8 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.04 kg / 0.09 LBS
40.0 g / 0.4 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
0.20 kg / 0.44 LBS
200.0 g / 2.0 N
When hanging a element on a upright wall (e.g., a car body), it you can count on barely about 20%-30% of its nominal power. Gravity and a weak degree of grip influence the fact that products slide down easier than they detach. Planning a hanger? Consider that the shear force is significantly lower than the maximum static pull force. On a painted metal, the holder will slide down under a significantly smaller cargo. Utilizing a rubberized pad can drastically improve the result.

Table 4: Steel thickness (substrate influence) - power losses
MW 9.5x1 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.04 kg / 0.09 LBS
40.0 g / 0.4 N
1 mm
25%
 0.10 kg / 0.22 LBS
100.0 g / 1.0 N
2 mm
50%
 0.20 kg / 0.44 LBS
200.0 g / 2.0 N
3 mm
75%
 0.30 kg / 0.66 LBS
300.0 g / 2.9 N
5 mm
100%
 0.40 kg / 0.88 LBS
400.0 g / 3.9 N
10 mm
100%
 0.40 kg / 0.88 LBS
400.0 g / 3.9 N
11 mm
100%
 0.40 kg / 0.88 LBS
400.0 g / 3.9 N
12 mm
100%
 0.40 kg / 0.88 LBS
400.0 g / 3.9 N
A thin sheet is incapable of conduct the full magnetic flux, which wastes potential of the holder. Should you attach a powerful product to a too thin substrate, the magnetism will pass right through and the holding will be smaller. To achieve the maximum of this magnet's power, you need a suitably thick piece of metal. The material oversaturation means that on delicate walls (e.g., car bodies), the product shows lower pull force. We advise picking the steel thickness from these parameters.

Table 5: Thermal resistance (material behavior) - thermal limit
MW 9.5x1 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 0.40 kg / 0.88 LBS
400.0 g / 3.9 N
 OK
40 °C -2.2% 0.39 kg / 0.86 LBS
391.2 g / 3.8 N
 OK
60 °C -4.4% 0.38 kg / 0.84 LBS
382.4 g / 3.8 N
80 °C -6.6% 0.37 kg / 0.82 LBS
373.6 g / 3.7 N
100 °C -28.8% 0.28 kg / 0.63 LBS
284.8 g / 2.8 N
Ordinary NdFeB products change their properties parameters past the thermal threshold. Protect against heat – excessive heat can permanently demagnetize this product. As the temperature rises, the magnet's capacity momentarily lowers. Refrain from using this magnet close to ovens exceeding its safe range. Too high temperature will cause irreversible degradation of magnetism.
*Technical advisory: Heat tolerance depends not only on the material grade, as well as the dimension ratios. Thin magnets (low permeance coefficient) are more susceptible to demagnetization at lower temperatures than long magnets. Warning indicator in the table signals permanent field degradation for this specific geometry.

Table 6: Magnet-Magnet interaction (repulsion) - field range
MW 9.5x1 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Sliding Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 0.71 kg / 1.57 LBS
2 403 Gs
0.11 kg / 0.24 LBS
107 g / 1.0 N
 N/A
1 mm 0.65 kg / 1.43 LBS
2 436 Gs
0.10 kg / 0.21 LBS
97 g / 1.0 N
 0.58 kg / 1.29 LBS
~0 Gs
2 mm 0.56 kg / 1.23 LBS
2 257 Gs
0.08 kg / 0.18 LBS
84 g / 0.8 N
 0.50 kg / 1.10 LBS
~0 Gs
3 mm 0.46 kg / 1.00 LBS
2 041 Gs
0.07 kg / 0.15 LBS
68 g / 0.7 N
 0.41 kg / 0.90 LBS
~0 Gs
5 mm 0.27 kg / 0.60 LBS
1 580 Gs
0.04 kg / 0.09 LBS
41 g / 0.4 N
 0.25 kg / 0.54 LBS
~0 Gs
10 mm 0.06 kg / 0.13 LBS
732 Gs
0.01 kg / 0.02 LBS
9 g / 0.1 N
 0.05 kg / 0.12 LBS
~0 Gs
20 mm 0.00 kg / 0.01 LBS
183 Gs
0.00 kg / 0.00 LBS
1 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
50 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
60 mm 0.00 kg / 0.00 LBS
10 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
6 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
4 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
3 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
2 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
Two magnets attract each other from a much further distance than a magnet and sheet combination. Such a system of two magnets generates a stronger field and a larger range of operation. Planning to create a solid fastener? Use a pair of magnets instead of a neodymium and a striker plate. Exercise caution that when attracting two neodymiums, the collision energy is huge. The levitation is marginally weaker than the attraction, but still large.
*Field value in repulsion mode drops to ~0 Gs at the midpoint of the gap (resulting from vector opposition).
Important: Calculations refer to friction force of a pair of matching magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Hazards (implants) - precautionary measures
MW 9.5x1 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 3.0 cm
Hearing aid 10 Gs (1.0 mT) 2.5 cm
Mechanical watch 20 Gs (2.0 mT) 2.0 cm
Phone / Smartphone 40 Gs (4.0 mT) 1.5 cm
Car key 50 Gs (5.0 mT) 1.5 cm
Payment card 400 Gs (40.0 mT) 0.5 cm
HDD hard drive 600 Gs (60.0 mT) 0.5 cm
Powerful magnet radiation poses a serious hazard to IT equipment and pacemakers. These neodymiums produce a field that prevents correct functioning of sensitive medical devices. Notice: the invisible magnetic field acts through matter and glass. Increased vigilance must be taken by people with cochlear implants and insulin pumps. Influence will be felt by: mechanical watches, remotes, speakers, and displays. Do not bring the product near payment cards, hard drives, or precise measuring instruments.

Table 8: Impact energy (kinetic energy) - warning
MW 9.5x1 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 27.80 km/h
(7.72 m/s)
 0.02 J
30 mm 47.99 km/h
(13.33 m/s)
 0.05 J
50 mm 61.95 km/h
(17.21 m/s)
 0.08 J
100 mm 87.61 km/h
(24.34 m/s)
 0.16 J
Magnetic elements are delicate – a collision with steel can result in shattering. Control the attraction moment – a magnet released freely turns into a projectile. Kinetic force can trigger coating fragments or dangerous crushing to skin. Always hold the magnet during mounting so it doesn't hit violently against the steel surface. A contact at a velocity of dozens of km/h means shattering of the magnet. Use safety goggles when playing with powerful specimens.

Table 9: Surface protection spec
MW 9.5x1 / 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)
The following table defines the conditions under which this product can be safely used. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Electrical data (Flux)
MW 9.5x1 / N38

Parameter Value SI Unit / Description
Magnetic Flux 1 184 Mx 11.8 µWb
Pc Coefficient 0.16 Low (Flat)
Flux value emitted by the magnet pole. Key data in coil applications as well as sensors. Pc value determines the magnet's operating point.

Table 11: Physics of underwater searching
MW 9.5x1 / N38

Environment Effective steel pull Effect
Air (land) 0.40 kg Standard
Water (riverbed) 0.46 kg
(+0.06 kg buoyancy gain)
+14.5%
Corrosion warning: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.
In water, the magnet feels stronger thanks to Archimedes' principle. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.
1. Wall mount (shear)

*Caution: On a vertical wall, the magnet retains only approx. 20-30% of its max power.

2. Efficiency vs thickness

*Thin metal sheet (e.g. 0.5mm PC case) severely reduces 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) = 0.16

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%
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: 010107-2026
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Pulling force
Field Strength
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The presented product is a very strong cylinder magnet, composed of advanced NdFeB material, which, at dimensions of Ø9.5x1 mm, guarantees optimal power. The MW 9.5x1 / N38 component is characterized by an accuracy of ±0.1mm and industrial build quality, making it an ideal solution for professional engineers and designers. As a magnetic rod with significant force (approx. 0.40 kg), this product is available off-the-shelf from our European logistics center, ensuring rapid order fulfillment. Moreover, its Ni-Cu-Ni coating effectively protects it against corrosion in standard operating conditions, ensuring 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 3.96 N with a weight of only 0.53 g, this cylindrical magnet 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 precision component. To ensure long-term durability in industry, specialized industrial adhesives are used, which do not react with the nickel coating and fill the gap, guaranteeing durability of the connection.
Magnets NdFeB grade N38 are strong enough for 90% of applications in automation and machine building, where excessive miniaturization with maximum force is not required. If you need even stronger magnets in the same volume (Ø9.5x1), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our store.
The presented product is a neodymium magnet with precisely defined parameters: diameter 9.5 mm and height 1 mm. The key parameter here is the lifting capacity amounting to approximately 0.40 kg (force ~3.96 N), which, with such defined dimensions, proves the high grade of the NdFeB material. The product has a [NiCuNi] coating, which secures it 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 9.5 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 and disadvantages of neodymium magnets.

Strengths

In addition to their magnetic capacity, neodymium magnets provide the following advantages:
  • They do not lose strength, even over around ten years – the reduction in power is only ~1% (according to tests),
  • Neodymium magnets are exceptionally resistant to demagnetization caused by external magnetic fields,
  • By applying a smooth layer of silver, the element presents an elegant look,
  • They are known for high magnetic induction at the operating surface, which increases their power,
  • Due to their durability and thermal resistance, neodymium magnets can operate (depending on the form) even at high temperatures reaching 230°C or more...
  • Thanks to freedom in shaping and the capacity to adapt to client solutions,
  • Huge importance in modern technologies – they are commonly used in data components, electric drive systems, diagnostic systems, and industrial machines.
  • Relatively small size with high pulling force – neodymium magnets offer high power in small dimensions, which allows their use in compact constructions

Cons

Problematic aspects of neodymium magnets and ways of using them
  • To avoid cracks upon strong impacts, we suggest using special steel holders. Such a solution secures the magnet and simultaneously increases its durability.
  • NdFeB magnets lose force when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of power (a factor is the shape and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are very 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 stable to moisture, in case of application outdoors
  • We recommend casing - magnetic mount, due to difficulties in creating threads inside the magnet and complex shapes.
  • Health risk to health – tiny shards 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 in case of swallowing.
  • High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which can limit application in large quantities

Lifting parameters

Best holding force of the magnet in ideal parameters – what contributes to it?

Information about lifting capacity was determined for the most favorable conditions, assuming:
  • using a plate made of low-carbon steel, acting as a circuit closing element
  • with a cross-section of at least 10 mm
  • with an ground contact surface
  • under conditions of ideal adhesion (metal-to-metal)
  • under vertical force direction (90-degree angle)
  • at standard ambient temperature

Impact of factors on magnetic holding capacity in practice

In practice, the actual holding force depends on several key aspects, listed from the most important:
  • Gap between surfaces – every millimeter of separation (caused e.g. by varnish or unevenness) significantly weakens the pulling force, often by half at just 0.5 mm.
  • Loading method – catalog parameter refers to pulling vertically. When attempting to slide, the magnet holds much less (typically approx. 20-30% of maximum force).
  • Substrate thickness – to utilize 100% power, the steel must be sufficiently thick. Paper-thin metal limits the attraction force (the magnet "punches through" it).
  • Material type – ideal substrate is high-permeability steel. Cast iron may have worse magnetic properties.
  • Surface structure – the smoother and more polished the surface, the larger the contact zone and stronger the hold. Unevenness creates an air distance.
  • Thermal factor – high temperature weakens magnetic field. Too high temperature can permanently damage the magnet.

Holding force was tested on the plate surface of 20 mm thickness, when the force acted perpendicularly, whereas under shearing force the holding force is lower. Additionally, even a small distance between the magnet’s surface and the plate decreases the holding force.

Warnings
Fire risk

Combustion risk: Rare earth powder is highly flammable. Do not process magnets in home conditions as this risks ignition.

Life threat

Individuals with a pacemaker should maintain an safe separation from magnets. The magnetic field can interfere with the operation of the life-saving device.

Nickel coating and allergies

It is widely known that the nickel plating (the usual finish) is a common allergen. If your skin reacts to metals, avoid direct skin contact or opt for encased magnets.

Keep away from computers

Powerful magnetic fields can erase data on credit cards, hard drives, and storage devices. Keep a distance of at least 10 cm.

Pinching danger

Pinching hazard: The pulling power is so great that it can result in blood blisters, crushing, and broken bones. Protective gloves are recommended.

Operating temperature

Keep cool. NdFeB magnets are sensitive to temperature. If you need resistance above 80°C, look for special high-temperature series (H, SH, UH).

Compass and GPS

A strong magnetic field disrupts the operation of magnetometers in phones and navigation systems. Keep magnets close to a smartphone to prevent breaking the sensors.

This is not a toy

Neodymium magnets are not suitable for play. Eating multiple magnets may result in them attracting across intestines, which poses a severe health hazard and necessitates urgent medical intervention.

Do not underestimate power

Handle with care. Rare earth magnets attract from a distance and connect with huge force, often quicker than you can move away.

Fragile material

Despite metallic appearance, neodymium is delicate and not impact-resistant. Do not hit, as the magnet may shatter into hazardous fragments.

Safety First! Need more info? Read our article: Are neodymium magnets dangerous?