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MW 5x1 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010082

GTIN/EAN: 5906301810810

5.00

Diameter Ø

5 mm [±0,1 mm]

Height

1 mm [±0,1 mm]

Weight

0.15 g

Magnetization Direction

↑ axial

Load capacity

0.32 kg / 3.12 N

Magnetic Induction

229.95 mT / 2300 Gs

Coating

[NiCuNi] Nickel

0.1845 with VAT / pcs + price for transport

0.1500 ZŁ net + 23% VAT / pcs

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Technical details - MW 5x1 / N38 - cylindrical magnet

Specification / characteristics - MW 5x1 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010082
GTIN/EAN 5906301810810
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 5 mm [±0,1 mm]
Height 1 mm [±0,1 mm]
Weight 0.15 g
Magnetization Direction ↑ axial
Load capacity ~ ? 0.32 kg / 3.12 N
Magnetic Induction ~ ? 229.95 mT / 2300 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 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 analysis of the product - technical parameters

These data constitute the direct effect of a physical simulation. Results were calculated on algorithms for the material Nd2Fe14B. Operational conditions may differ. Please consider these calculations as a preliminary roadmap for designers.

Table 1: Static force (pull vs gap) - characteristics
MW 5x1 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 2298 Gs
229.8 mT
0.32 kg / 0.71 pounds
320.0 g / 3.1 N
weak grip
1 mm 1570 Gs
157.0 mT
0.15 kg / 0.33 pounds
149.5 g / 1.5 N
weak grip
2 mm 890 Gs
89.0 mT
0.05 kg / 0.11 pounds
48.0 g / 0.5 N
weak grip
3 mm 495 Gs
49.5 mT
0.01 kg / 0.03 pounds
14.8 g / 0.1 N
weak grip
5 mm 178 Gs
17.8 mT
0.00 kg / 0.00 pounds
1.9 g / 0.0 N
weak grip
10 mm 31 Gs
3.1 mT
0.00 kg / 0.00 pounds
0.1 g / 0.0 N
weak grip
15 mm 10 Gs
1.0 mT
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
weak grip
20 mm 4 Gs
0.4 mT
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
weak grip
30 mm 1 Gs
0.1 mT
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
weak grip
50 mm 0 Gs
0.0 mT
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
weak grip

Table 2: Sliding hold (vertical surface)
MW 5x1 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.06 kg / 0.14 pounds
64.0 g / 0.6 N
1 mm Stal (~0.2) 0.03 kg / 0.07 pounds
30.0 g / 0.3 N
2 mm Stal (~0.2) 0.01 kg / 0.02 pounds
10.0 g / 0.1 N
3 mm Stal (~0.2) 0.00 kg / 0.00 pounds
2.0 g / 0.0 N
5 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
10 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 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: Wall mounting (shearing) - vertical pull
MW 5x1 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.10 kg / 0.21 pounds
96.0 g / 0.9 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.06 kg / 0.14 pounds
64.0 g / 0.6 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.03 kg / 0.07 pounds
32.0 g / 0.3 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
0.16 kg / 0.35 pounds
160.0 g / 1.6 N

Table 4: Steel thickness (saturation) - sheet metal selection
MW 5x1 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
0.03 kg / 0.07 pounds
32.0 g / 0.3 N
1 mm
25%
0.08 kg / 0.18 pounds
80.0 g / 0.8 N
2 mm
50%
0.16 kg / 0.35 pounds
160.0 g / 1.6 N
3 mm
75%
0.24 kg / 0.53 pounds
240.0 g / 2.4 N
5 mm
100%
0.32 kg / 0.71 pounds
320.0 g / 3.1 N
10 mm
100%
0.32 kg / 0.71 pounds
320.0 g / 3.1 N
11 mm
100%
0.32 kg / 0.71 pounds
320.0 g / 3.1 N
12 mm
100%
0.32 kg / 0.71 pounds
320.0 g / 3.1 N

Table 5: Working in heat (material behavior) - resistance threshold
MW 5x1 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 0.32 kg / 0.71 pounds
320.0 g / 3.1 N
OK
40 °C -2.2% 0.31 kg / 0.69 pounds
313.0 g / 3.1 N
OK
60 °C -4.4% 0.31 kg / 0.67 pounds
305.9 g / 3.0 N
80 °C -6.6% 0.30 kg / 0.66 pounds
298.9 g / 2.9 N
100 °C -28.8% 0.23 kg / 0.50 pounds
227.8 g / 2.2 N

Table 6: Two magnets (repulsion) - field range
MW 5x1 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Lateral Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 0.64 kg / 1.41 pounds
3 860 Gs
0.10 kg / 0.21 pounds
96 g / 0.9 N
N/A
1 mm 0.47 kg / 1.04 pounds
3 948 Gs
0.07 kg / 0.16 pounds
71 g / 0.7 N
0.42 kg / 0.94 pounds
~0 Gs
2 mm 0.30 kg / 0.66 pounds
3 141 Gs
0.04 kg / 0.10 pounds
45 g / 0.4 N
0.27 kg / 0.59 pounds
~0 Gs
3 mm 0.17 kg / 0.38 pounds
2 388 Gs
0.03 kg / 0.06 pounds
26 g / 0.3 N
0.16 kg / 0.34 pounds
~0 Gs
5 mm 0.05 kg / 0.12 pounds
1 322 Gs
0.01 kg / 0.02 pounds
8 g / 0.1 N
0.05 kg / 0.10 pounds
~0 Gs
10 mm 0.00 kg / 0.01 pounds
355 Gs
0.00 kg / 0.00 pounds
1 g / 0.0 N
0.00 kg / 0.00 pounds
~0 Gs
20 mm 0.00 kg / 0.00 pounds
62 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
0.00 kg / 0.00 pounds
~0 Gs
50 mm 0.00 kg / 0.00 pounds
5 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
3 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
2 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
1 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
1 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
1 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
0.00 kg / 0.00 pounds
~0 Gs

Table 7: Safety (HSE) (electronics) - warnings
MW 5x1 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 2.0 cm
Hearing aid 10 Gs (1.0 mT) 2.0 cm
Timepiece 20 Gs (2.0 mT) 1.5 cm
Mobile device 40 Gs (4.0 mT) 1.0 cm
Car key 50 Gs (5.0 mT) 1.0 cm
Payment card 400 Gs (40.0 mT) 0.5 cm
HDD hard drive 600 Gs (60.0 mT) 0.5 cm

Table 8: Impact energy (kinetic energy) - warning
MW 5x1 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 46.59 km/h
(12.94 m/s)
0.01 J
30 mm 80.68 km/h
(22.41 m/s)
0.04 J
50 mm 104.16 km/h
(28.93 m/s)
0.06 J
100 mm 147.30 km/h
(40.92 m/s)
0.13 J

Table 9: Anti-corrosion coating durability
MW 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)

Table 10: Electrical data (Flux)
MW 5x1 / N38

Parameter Value SI Unit / Description
Magnetic Flux 524 Mx 5.2 µWb
Pc Coefficient 0.29 Low (Flat)

Table 11: Physics of underwater searching
MW 5x1 / N38

Environment Effective steel pull Effect
Air (land) 0.32 kg Standard
Water (riverbed) 0.37 kg
(+0.05 kg buoyancy gain)
+14.5%
Rust risk: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.
1. Shear force

*Note: On a vertical wall, the magnet holds merely ~20% of its perpendicular strength.

2. Steel thickness impact

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

3. Heat tolerance

*For N38 material, the safety limit is 80°C.

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.29

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 and environmental data
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%
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: 010082-2026
Magnet Unit Converter
Magnet pull force

Field Strength

Other deals

This product is an extremely powerful cylinder magnet, manufactured from modern NdFeB material, which, with dimensions of Ø5x1 mm, guarantees optimal power. This specific item is characterized by high dimensional repeatability and industrial build quality, making it a perfect solution for the most demanding engineers and designers. As a magnetic rod with impressive force (approx. 0.32 kg), this product is in stock from our warehouse in Poland, ensuring lightning-fast order fulfillment. Additionally, its Ni-Cu-Ni coating effectively protects it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.
This model is perfect for building generators, advanced sensors, and efficient filters, where field concentration on a small surface counts. Thanks to the high power of 3.12 N with a weight of only 0.15 g, this rod is indispensable in miniature devices and wherever every gram matters.
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 precision component. To ensure stability in automation, anaerobic resins are used, which are safe for nickel and fill the gap, guaranteeing high repeatability of the connection.
Grade N38 is the most popular standard for professional neodymium magnets, offering an optimal price-to-power ratio and operational stability. If you need even stronger magnets in the same volume (Ø5x1), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our warehouse.
The presented product is a neodymium magnet with precisely defined parameters: diameter 5 mm and height 1 mm. The key parameter here is the lifting capacity amounting to approximately 0.32 kg (force ~3.12 N), which, with such defined dimensions, proves the high grade 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 1 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 Nd2Fe14B magnets.

Benefits

Besides their durability, neodymium magnets are valued for these benefits:
  • They virtually do not lose power, because even after ten years the performance loss is only ~1% (based on calculations),
  • Magnets very well defend themselves against loss of magnetization caused by foreign field sources,
  • A magnet with a smooth silver surface looks better,
  • Neodymium magnets ensure maximum magnetic induction on a contact point, which allows for strong attraction,
  • Thanks to resistance to high temperature, they are able to function (depending on the form) even at temperatures up to 230°C and higher...
  • Possibility of exact forming and adjusting to atypical applications,
  • Huge importance in future technologies – they serve a role in mass storage devices, drive modules, medical devices, also technologically advanced constructions.
  • Relatively small size with high pulling force – neodymium magnets offer high power in compact dimensions, which allows their use in small systems

Cons

Disadvantages of neodymium magnets:
  • At very strong impacts they can crack, therefore we recommend placing them in steel cases. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
  • When exposed to high temperature, neodymium magnets experience a drop in power. 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
  • They oxidize in a humid environment. For use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
  • Due to limitations in producing threads and complex shapes in magnets, we propose using a housing - magnetic holder.
  • Possible danger related to microscopic parts of magnets pose a threat, in case of ingestion, which is particularly important in the context of child health protection. It is also worth noting that tiny parts of these magnets can disrupt the diagnostic process medical when they are in the body.
  • With mass production the cost of neodymium magnets can be a barrier,

Holding force characteristics

Magnetic strength at its maximum – what contributes to it?

Holding force of 0.32 kg is a result of laboratory testing conducted under the following configuration:
  • using a sheet made of high-permeability steel, serving as a circuit closing element
  • possessing a thickness of minimum 10 mm to avoid saturation
  • characterized by lack of roughness
  • under conditions of ideal adhesion (metal-to-metal)
  • during pulling in a direction vertical to the mounting surface
  • at standard ambient temperature

Determinants of practical lifting force of a magnet

It is worth knowing that the working load will differ depending on elements below, starting with the most relevant:
  • Distance (between the magnet and the plate), since even a tiny clearance (e.g. 0.5 mm) can cause a reduction in force by up to 50% (this also applies to varnish, corrosion or debris).
  • Force direction – remember that the magnet holds strongest perpendicularly. Under shear forces, the capacity drops drastically, often to levels of 20-30% of the maximum value.
  • Metal thickness – thin material does not allow full use of the magnet. Magnetic flux penetrates through instead of converting into lifting capacity.
  • Steel grade – the best choice is pure iron steel. Cast iron may have worse magnetic properties.
  • Surface finish – ideal contact is obtained only on smooth steel. Any scratches and bumps create air cushions, weakening the magnet.
  • Temperature – temperature increase causes a temporary drop of force. Check the maximum operating temperature for a given model.

Lifting capacity testing was conducted on a smooth plate of optimal thickness, under a perpendicular pulling force, in contrast under attempts to slide the magnet the lifting capacity is smaller. In addition, even a minimal clearance between the magnet’s surface and the plate decreases the holding force.

Safe handling of neodymium magnets
Electronic devices

Avoid bringing magnets close to a purse, computer, or screen. The magnetism can permanently damage these devices and erase data from cards.

Caution required

Use magnets consciously. Their immense force can surprise even experienced users. Plan your moves and respect their force.

Flammability

Machining of NdFeB material carries a risk of fire hazard. Magnetic powder oxidizes rapidly with oxygen and is hard to extinguish.

Bone fractures

Danger of trauma: The attraction force is so immense that it can cause hematomas, pinching, and even bone fractures. Protective gloves are recommended.

GPS and phone interference

A strong magnetic field negatively affects the functioning of magnetometers in phones and navigation systems. Do not bring magnets close to a device to avoid damaging the sensors.

Maximum temperature

Standard neodymium magnets (grade N) lose magnetization when the temperature exceeds 80°C. The loss of strength is permanent.

Warning for allergy sufferers

Warning for allergy sufferers: The nickel-copper-nickel coating consists of nickel. If an allergic reaction happens, immediately stop handling magnets and use protective gear.

Life threat

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

Risk of cracking

Neodymium magnets are sintered ceramics, which means they are prone to chipping. Impact of two magnets leads to them shattering into shards.

Keep away from children

Neodymium magnets are not intended for children. Swallowing a few magnets may result in them pinching intestinal walls, which constitutes a severe health hazard and requires urgent medical intervention.

Important! Need more info? Check our post: Are neodymium magnets dangerous?