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MW 5x5 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010503

GTIN/EAN: 5906301814979

5.00

Diameter Ø

5 mm [±0,1 mm]

Height

5 mm [±0,1 mm]

Weight

0.74 g

Magnetization Direction

↑ axial

Load capacity

0.79 kg / 7.76 N

Magnetic Induction

553.14 mT / 5531 Gs

Coating

[NiCuNi] Nickel

0.394 with VAT / pcs + price for transport

0.320 ZŁ net + 23% VAT / pcs

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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.

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Product card - MW 5x5 / N38 - cylindrical magnet

Specification / characteristics - MW 5x5 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010503
GTIN/EAN 5906301814979
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 5 mm [±0,1 mm]
Weight 0.74 g
Magnetization Direction ↑ axial
Load capacity ~ ? 0.79 kg / 7.76 N
Magnetic Induction ~ ? 553.14 mT / 5531 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 5x5 / 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 product - data

These information are the outcome of a engineering simulation. Results rely on models for the class Nd2Fe14B. Real-world parameters may differ from theoretical values. Please consider these data as a reference point for designers.

Table 1: Static pull force (pull vs distance) - power drop
MW 5x5 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 5523 Gs
552.3 mT
0.79 kg / 1.74 LBS
790.0 g / 7.7 N
safe
1 mm 3420 Gs
342.0 mT
0.30 kg / 0.67 LBS
303.0 g / 3.0 N
safe
2 mm 1966 Gs
196.6 mT
0.10 kg / 0.22 LBS
100.1 g / 1.0 N
safe
3 mm 1155 Gs
115.5 mT
0.03 kg / 0.08 LBS
34.5 g / 0.3 N
safe
5 mm 469 Gs
46.9 mT
0.01 kg / 0.01 LBS
5.7 g / 0.1 N
safe
10 mm 101 Gs
10.1 mT
0.00 kg / 0.00 LBS
0.3 g / 0.0 N
safe
15 mm 36 Gs
3.6 mT
0.00 kg / 0.00 LBS
0.0 g / 0.0 N
safe
20 mm 17 Gs
1.7 mT
0.00 kg / 0.00 LBS
0.0 g / 0.0 N
safe
30 mm 6 Gs
0.6 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

Table 2: Vertical capacity (wall)
MW 5x5 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.16 kg / 0.35 LBS
158.0 g / 1.5 N
1 mm Stal (~0.2) 0.06 kg / 0.13 LBS
60.0 g / 0.6 N
2 mm Stal (~0.2) 0.02 kg / 0.04 LBS
20.0 g / 0.2 N
3 mm Stal (~0.2) 0.01 kg / 0.01 LBS
6.0 g / 0.1 N
5 mm Stal (~0.2) 0.00 kg / 0.00 LBS
2.0 g / 0.0 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

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 5x5 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.24 kg / 0.52 LBS
237.0 g / 2.3 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.16 kg / 0.35 LBS
158.0 g / 1.5 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.08 kg / 0.17 LBS
79.0 g / 0.8 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
0.40 kg / 0.87 LBS
395.0 g / 3.9 N

Table 4: Material efficiency (substrate influence) - sheet metal selection
MW 5x5 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
0.08 kg / 0.17 LBS
79.0 g / 0.8 N
1 mm
25%
0.20 kg / 0.44 LBS
197.5 g / 1.9 N
2 mm
50%
0.40 kg / 0.87 LBS
395.0 g / 3.9 N
3 mm
75%
0.59 kg / 1.31 LBS
592.5 g / 5.8 N
5 mm
100%
0.79 kg / 1.74 LBS
790.0 g / 7.7 N
10 mm
100%
0.79 kg / 1.74 LBS
790.0 g / 7.7 N
11 mm
100%
0.79 kg / 1.74 LBS
790.0 g / 7.7 N
12 mm
100%
0.79 kg / 1.74 LBS
790.0 g / 7.7 N

Table 5: Thermal stability (material behavior) - resistance threshold
MW 5x5 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 0.79 kg / 1.74 LBS
790.0 g / 7.7 N
OK
40 °C -2.2% 0.77 kg / 1.70 LBS
772.6 g / 7.6 N
OK
60 °C -4.4% 0.76 kg / 1.67 LBS
755.2 g / 7.4 N
OK
80 °C -6.6% 0.74 kg / 1.63 LBS
737.9 g / 7.2 N
100 °C -28.8% 0.56 kg / 1.24 LBS
562.5 g / 5.5 N

Table 6: Magnet-Magnet interaction (repulsion) - field collision
MW 5x5 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Lateral Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 3.69 kg / 8.14 LBS
5 990 Gs
0.55 kg / 1.22 LBS
554 g / 5.4 N
N/A
1 mm 2.37 kg / 5.23 LBS
8 857 Gs
0.36 kg / 0.79 LBS
356 g / 3.5 N
2.14 kg / 4.71 LBS
~0 Gs
2 mm 1.42 kg / 3.12 LBS
6 841 Gs
0.21 kg / 0.47 LBS
212 g / 2.1 N
1.27 kg / 2.81 LBS
~0 Gs
3 mm 0.82 kg / 1.80 LBS
5 194 Gs
0.12 kg / 0.27 LBS
122 g / 1.2 N
0.73 kg / 1.62 LBS
~0 Gs
5 mm 0.27 kg / 0.60 LBS
2 996 Gs
0.04 kg / 0.09 LBS
41 g / 0.4 N
0.24 kg / 0.54 LBS
~0 Gs
10 mm 0.03 kg / 0.06 LBS
939 Gs
0.00 kg / 0.01 LBS
4 g / 0.0 N
0.02 kg / 0.05 LBS
~0 Gs
20 mm 0.00 kg / 0.00 LBS
202 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
0.00 kg / 0.00 LBS
~0 Gs
50 mm 0.00 kg / 0.00 LBS
19 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
11 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
7 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
5 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
4 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
3 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
0.00 kg / 0.00 LBS
~0 Gs

Table 7: Protective zones (implants) - warnings
MW 5x5 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 3.5 cm
Hearing aid 10 Gs (1.0 mT) 2.5 cm
Timepiece 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) 1.0 cm
HDD hard drive 600 Gs (60.0 mT) 0.5 cm

Table 8: Collisions (kinetic energy) - warning
MW 5x5 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 32.96 km/h
(9.16 m/s)
0.03 J
30 mm 57.07 km/h
(15.85 m/s)
0.09 J
50 mm 73.68 km/h
(20.47 m/s)
0.15 J
100 mm 104.20 km/h
(28.95 m/s)
0.31 J

Table 9: Anti-corrosion coating durability
MW 5x5 / 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 (Flux)
MW 5x5 / N38

Parameter Value SI Unit / Description
Magnetic Flux 1 120 Mx 11.2 µWb
Pc Coefficient 0.89 High (Stable)

Table 11: Submerged application
MW 5x5 / N38

Environment Effective steel pull Effect
Air (land) 0.79 kg Standard
Water (riverbed) 0.90 kg
(+0.11 kg buoyancy gain)
+14.5%
Warning: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.
1. Wall mount (shear)

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

2. Steel thickness impact

*Thin steel (e.g. 0.5mm PC case) severely reduces the holding force.

3. Temperature resistance

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

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

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

This simulation demonstrates the magnetic stability of the selected magnet under specific geometric conditions. 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: 010503-2026
Measurement Calculator
Force (pull)

Magnetic Induction

Other deals

The offered product is a very strong cylindrical magnet, composed of advanced NdFeB material, which, at dimensions of Ø5x5 mm, guarantees maximum efficiency. The MW 5x5 / N38 component features a tolerance of ±0.1mm and professional build quality, making it an ideal solution for the most demanding engineers and designers. As a magnetic rod with impressive force (approx. 0.79 kg), this product is available off-the-shelf from our warehouse in Poland, ensuring quick order fulfillment. Moreover, its Ni-Cu-Ni coating effectively protects it against corrosion in standard operating conditions, guaranteeing an aesthetic appearance and durability for years.
This model is perfect for building generators, advanced sensors, and efficient filters, where maximum induction on a small surface counts. Thanks to the high power of 7.76 N with a weight of only 0.74 g, this cylindrical magnet is indispensable in miniature devices and wherever every gram matters.
Since our magnets have a tolerance of ±0.1mm, the best method is to glue them into holes with a slightly larger diameter (e.g., 5.1 mm) using two-component epoxy glues. To ensure stability in industry, anaerobic resins are used, which are safe for nickel and fill the gap, guaranteeing durability of the connection.
Grade N38 is the most popular standard for industrial neodymium magnets, offering a great economic balance and operational stability. If you need the strongest magnets in the same volume (Ø5x5), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our store.
This model is characterized by dimensions Ø5x5 mm, which, at a weight of 0.74 g, makes it an element with high magnetic energy density. The key parameter here is the lifting capacity amounting to approximately 0.79 kg (force ~7.76 N), which, with such defined dimensions, proves the high power of the NdFeB material. The product has a [NiCuNi] coating, which protects the surface 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 5 mm. Such an arrangement is standard 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 through the diameter if your project requires it.

Strengths and weaknesses of rare earth magnets.

Benefits

Besides their exceptional strength, neodymium magnets offer the following advantages:
  • Their strength remains stable, and after approximately 10 years it drops only by ~1% (theoretically),
  • Magnets very well protect themselves against loss of magnetization caused by external fields,
  • A magnet with a shiny nickel surface has better aesthetics,
  • Magnetic induction on the top side of the magnet is maximum,
  • Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the form) even at high temperatures reaching 230°C or more...
  • Thanks to the option of precise molding and adaptation to specialized needs, NdFeB magnets can be manufactured in a wide range of forms and dimensions, which increases their versatility,
  • Huge importance in advanced technology sectors – they serve a role in hard drives, electric motors, diagnostic systems, and other advanced devices.
  • Thanks to efficiency per cm³, small magnets offer high operating force, in miniature format,

Cons

What to avoid - cons of neodymium magnets: weaknesses and usage proposals
  • To avoid cracks upon strong impacts, we recommend using special steel holders. Such a solution protects the magnet and simultaneously increases its durability.
  • Neodymium magnets lose their force under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
  • Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material immune to moisture, in case of application outdoors
  • Due to limitations in producing nuts and complex forms in magnets, we propose using casing - magnetic mechanism.
  • Possible danger resulting from small fragments of magnets pose a threat, when accidentally swallowed, which gains importance in the aspect of protecting the youngest. Additionally, small components of these products can complicate diagnosis medical when they are in the body.
  • Due to complex production process, their price exceeds standard values,

Holding force characteristics

Best holding force of the magnet in ideal parameterswhat affects it?

Magnet power is the result of a measurement for optimal configuration, including:
  • using a plate made of low-carbon steel, serving as a magnetic yoke
  • with a thickness minimum 10 mm
  • with a plane cleaned and smooth
  • with zero gap (without impurities)
  • under axial application of breakaway force (90-degree angle)
  • at room temperature

Practical lifting capacity: influencing factors

In real-world applications, the real power results from a number of factors, listed from the most important:
  • Air gap (between the magnet and the plate), since even a very small distance (e.g. 0.5 mm) results in a decrease in force by up to 50% (this also applies to paint, rust or dirt).
  • Force direction – note that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops drastically, often to levels of 20-30% of the nominal value.
  • Metal thickness – the thinner the sheet, the weaker the hold. Magnetic flux passes through the material instead of generating force.
  • Material composition – different alloys attracts identically. Alloy additives weaken the interaction with the magnet.
  • Surface quality – the more even the surface, the better the adhesion and stronger the hold. Roughness acts like micro-gaps.
  • Heat – neodymium magnets have a sensitivity to temperature. When it is hot they lose power, and at low temperatures they can be stronger (up to a certain limit).

Holding force was checked on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, however under attempts to slide the magnet the holding force is lower. Additionally, even a small distance between the magnet and the plate lowers the lifting capacity.

Precautions when working with neodymium magnets
Choking Hazard

Strictly store magnets away from children. Choking hazard is significant, and the consequences of magnets clamping inside the body are life-threatening.

Protect data

Do not bring magnets near a purse, laptop, or screen. The magnetism can destroy these devices and wipe information from cards.

Flammability

Machining of neodymium magnets poses a fire risk. Magnetic powder reacts violently with oxygen and is hard to extinguish.

Finger safety

Risk of injury: The pulling power is so immense that it can result in blood blisters, crushing, and broken bones. Use thick gloves.

Magnet fragility

Neodymium magnets are sintered ceramics, meaning they are prone to chipping. Collision of two magnets leads to them breaking into small pieces.

Phone sensors

A strong magnetic field negatively affects the functioning of compasses in smartphones and GPS navigation. Keep magnets near a smartphone to prevent damaging the sensors.

Avoid contact if allergic

It is widely known that nickel (the usual finish) is a potent allergen. If you have an allergy, prevent touching magnets with bare hands and select versions in plastic housing.

Conscious usage

Before starting, read the rules. Uncontrolled attraction can break the magnet or hurt your hand. Think ahead.

Heat sensitivity

Avoid heat. NdFeB magnets are sensitive to temperature. If you require resistance above 80°C, ask us about HT versions (H, SH, UH).

Implant safety

Warning for patients: Powerful magnets disrupt electronics. Maintain at least 30 cm distance or request help to work with the magnets.

Attention! Want to know more? Read our article: Why are neodymium magnets dangerous?