Product available Ships today (order by 14:00)

MW 5x2 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010085

GTIN/EAN: 5906301810841

5.00

Diameter Ø

5 mm [±0,1 mm]

Height

2 mm [±0,1 mm]

Weight

0.29 g

Magnetization Direction

↑ axial

Load capacity

0.70 kg / 6.83 N

Magnetic Induction

386.50 mT / 3865 Gs

Coating

[NiCuNi] Nickel

0.1845 with VAT / pcs + price for transport

0.1500 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs
0.1500 ZŁ
0.1845 ZŁ
price from 4000 pcs
0.1410 ZŁ
0.1734 ZŁ
price from 17000 pcs
0.1320 ZŁ
0.1624 ZŁ
Hunting for a discount?

Give us a call +48 22 499 98 98 otherwise get in touch via request form the contact section.
Force along with form of neodymium magnets can be calculated on our power calculator.

Orders submitted before 14:00 will be dispatched today!

Technical specification - MW 5x2 / N38 - cylindrical magnet

Specification / characteristics - MW 5x2 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010085
GTIN/EAN 5906301810841
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 2 mm [±0,1 mm]
Weight 0.29 g
Magnetization Direction ↑ axial
Load capacity ~ ? 0.70 kg / 6.83 N
Magnetic Induction ~ ? 386.50 mT / 3865 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 5x2 / 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

Technical modeling of the product - data

The following data represent the outcome of a physical simulation. Values were calculated on algorithms for the material Nd2Fe14B. Real-world conditions might slightly differ. Please consider these data as a reference point during assembly planning.

Table 1: Static force (pull vs distance) - characteristics
MW 5x2 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 3860 Gs
386.0 mT
0.70 kg / 1.54 LBS
700.0 g / 6.9 N
low risk
1 mm 2460 Gs
246.0 mT
0.28 kg / 0.63 LBS
284.4 g / 2.8 N
low risk
2 mm 1384 Gs
138.4 mT
0.09 kg / 0.20 LBS
90.0 g / 0.9 N
low risk
3 mm 782 Gs
78.2 mT
0.03 kg / 0.06 LBS
28.8 g / 0.3 N
low risk
5 mm 293 Gs
29.3 mT
0.00 kg / 0.01 LBS
4.0 g / 0.0 N
low risk
10 mm 55 Gs
5.5 mT
0.00 kg / 0.00 LBS
0.1 g / 0.0 N
low risk
15 mm 18 Gs
1.8 mT
0.00 kg / 0.00 LBS
0.0 g / 0.0 N
low risk
20 mm 8 Gs
0.8 mT
0.00 kg / 0.00 LBS
0.0 g / 0.0 N
low risk
30 mm 3 Gs
0.3 mT
0.00 kg / 0.00 LBS
0.0 g / 0.0 N
low risk
50 mm 1 Gs
0.1 mT
0.00 kg / 0.00 LBS
0.0 g / 0.0 N
low risk

Table 2: Shear force (wall)
MW 5x2 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.14 kg / 0.31 LBS
140.0 g / 1.4 N
1 mm Stal (~0.2) 0.06 kg / 0.12 LBS
56.0 g / 0.5 N
2 mm Stal (~0.2) 0.02 kg / 0.04 LBS
18.0 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
0.0 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: Wall mounting (sliding) - behavior on slippery surfaces
MW 5x2 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.21 kg / 0.46 LBS
210.0 g / 2.1 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.14 kg / 0.31 LBS
140.0 g / 1.4 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.07 kg / 0.15 LBS
70.0 g / 0.7 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
0.35 kg / 0.77 LBS
350.0 g / 3.4 N

Table 4: Material efficiency (substrate influence) - sheet metal selection
MW 5x2 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
0.07 kg / 0.15 LBS
70.0 g / 0.7 N
1 mm
25%
0.18 kg / 0.39 LBS
175.0 g / 1.7 N
2 mm
50%
0.35 kg / 0.77 LBS
350.0 g / 3.4 N
3 mm
75%
0.52 kg / 1.16 LBS
525.0 g / 5.2 N
5 mm
100%
0.70 kg / 1.54 LBS
700.0 g / 6.9 N
10 mm
100%
0.70 kg / 1.54 LBS
700.0 g / 6.9 N
11 mm
100%
0.70 kg / 1.54 LBS
700.0 g / 6.9 N
12 mm
100%
0.70 kg / 1.54 LBS
700.0 g / 6.9 N

Table 5: Working in heat (material behavior) - power drop
MW 5x2 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 0.70 kg / 1.54 LBS
700.0 g / 6.9 N
OK
40 °C -2.2% 0.68 kg / 1.51 LBS
684.6 g / 6.7 N
OK
60 °C -4.4% 0.67 kg / 1.48 LBS
669.2 g / 6.6 N
80 °C -6.6% 0.65 kg / 1.44 LBS
653.8 g / 6.4 N
100 °C -28.8% 0.50 kg / 1.10 LBS
498.4 g / 4.9 N

Table 6: Magnet-Magnet interaction (repulsion) - forces in the system
MW 5x2 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Sliding Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 1.80 kg / 3.98 LBS
5 236 Gs
0.27 kg / 0.60 LBS
271 g / 2.7 N
N/A
1 mm 1.21 kg / 2.68 LBS
6 336 Gs
0.18 kg / 0.40 LBS
182 g / 1.8 N
1.09 kg / 2.41 LBS
~0 Gs
2 mm 0.73 kg / 1.62 LBS
4 921 Gs
0.11 kg / 0.24 LBS
110 g / 1.1 N
0.66 kg / 1.45 LBS
~0 Gs
3 mm 0.42 kg / 0.92 LBS
3 711 Gs
0.06 kg / 0.14 LBS
62 g / 0.6 N
0.37 kg / 0.83 LBS
~0 Gs
5 mm 0.13 kg / 0.29 LBS
2 071 Gs
0.02 kg / 0.04 LBS
19 g / 0.2 N
0.12 kg / 0.26 LBS
~0 Gs
10 mm 0.01 kg / 0.02 LBS
587 Gs
0.00 kg / 0.00 LBS
2 g / 0.0 N
0.01 kg / 0.02 LBS
~0 Gs
20 mm 0.00 kg / 0.00 LBS
110 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
9 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
5 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
3 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
2 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
2 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
1 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) - warnings
MW 5x2 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 2.5 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) 1.5 cm
Remote 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

Table 8: Collisions (cracking risk) - collision effects
MW 5x2 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 49.55 km/h
(13.77 m/s)
0.03 J
30 mm 85.82 km/h
(23.84 m/s)
0.08 J
50 mm 110.79 km/h
(30.78 m/s)
0.14 J
100 mm 156.69 km/h
(43.52 m/s)
0.27 J

Table 9: Coating parameters (durability)
MW 5x2 / 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 5x2 / N38

Parameter Value SI Unit / Description
Magnetic Flux 785 Mx 7.9 µWb
Pc Coefficient 0.50 Low (Flat)

Table 11: Underwater work (magnet fishing)
MW 5x2 / N38

Environment Effective steel pull Effect
Air (land) 0.70 kg Standard
Water (riverbed) 0.80 kg
(+0.10 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. Sliding resistance

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

2. Steel thickness impact

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

3. Thermal stability

*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) = 0.50

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.

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%
Environmental data
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: 010085-2026
Measurement Calculator
Magnet pull force

Field Strength

Other products

The presented product is a very strong cylindrical magnet, manufactured from modern NdFeB material, which, with dimensions of Ø5x2 mm, guarantees optimal power. This specific item boasts high dimensional repeatability and professional build quality, making it an excellent solution for the most demanding engineers and designers. As a cylindrical magnet with impressive force (approx. 0.70 kg), this product is available off-the-shelf from our European logistics center, ensuring quick order fulfillment. Moreover, its triple-layer Ni-Cu-Ni coating effectively protects it against corrosion in typical operating conditions, guaranteeing an aesthetic appearance and durability for years.
It finds application in DIY projects, advanced automation, and broadly understood industry, serving as a positioning or actuating element. Thanks to the pull force of 6.83 N with a weight of only 0.29 g, this cylindrical magnet is indispensable in miniature devices and wherever low weight is crucial.
Since our magnets have a very precise dimensions, the best method is to glue them into holes with a slightly larger diameter (e.g., 5.1 mm) using epoxy glues. To ensure stability in industry, specialized industrial adhesives are used, which do not react with the nickel coating and fill the gap, guaranteeing durability of the connection.
Grade N38 is the most frequently chosen standard for industrial neodymium magnets, offering an optimal price-to-power ratio and high resistance to demagnetization. If you need even stronger magnets in the same volume (Ø5x2), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our warehouse.
This model is characterized by dimensions Ø5x2 mm, which, at a weight of 0.29 g, makes it an element with impressive magnetic energy density. The key parameter here is the lifting capacity amounting to approximately 0.70 kg (force ~6.83 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 2 mm), which means that the N and S poles are located on the flat, circular surfaces. 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 diametrically if your project requires it.

Strengths as well as weaknesses of neodymium magnets.

Pros

In addition to their pulling strength, neodymium magnets provide the following advantages:
  • They do not lose power, even after nearly ten years – the reduction in power is only ~1% (according to tests),
  • They do not lose their magnetic properties even under strong external field,
  • The use of an aesthetic coating of noble metals (nickel, gold, silver) causes the element to present itself better,
  • They feature high magnetic induction at the operating surface, which increases their power,
  • Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
  • Possibility of detailed creating as well as modifying to concrete applications,
  • Significant place in high-tech industry – they are commonly used in hard drives, motor assemblies, diagnostic systems, also multitasking production systems.
  • Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Limitations

Disadvantages of neodymium 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 increases its resistance to damage
  • When exposed to high temperature, neodymium magnets suffer a drop in power. Often, when the temperature exceeds 80°C, their strength 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 - during use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
  • Due to limitations in realizing nuts and complicated forms in magnets, we propose using cover - magnetic mechanism.
  • Potential hazard resulting from small fragments of magnets are risky, in case of ingestion, which is particularly important in the context of child health protection. Furthermore, small elements of these products are able to complicate diagnosis medical in case of swallowing.
  • High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which increases costs of application in large quantities

Holding force characteristics

Breakaway strength of the magnet in ideal conditionswhat contributes to it?

Breakaway force was defined for ideal contact conditions, assuming:
  • with the use of a sheet made of special test steel, guaranteeing full magnetic saturation
  • whose transverse dimension reaches at least 10 mm
  • characterized by lack of roughness
  • under conditions of no distance (metal-to-metal)
  • under perpendicular force vector (90-degree angle)
  • in stable room temperature

Impact of factors on magnetic holding capacity in practice

In real-world applications, the actual holding force is determined by many variables, presented from the most important:
  • Distance (betwixt the magnet and the metal), since even a tiny clearance (e.g. 0.5 mm) results in a reduction in lifting capacity by up to 50% (this also applies to varnish, rust or debris).
  • Direction of force – maximum parameter is available only during pulling at a 90° angle. The shear force of the magnet along the surface is usually several times smaller (approx. 1/5 of the lifting capacity).
  • Wall thickness – the thinner the sheet, the weaker the hold. Magnetic flux passes through the material instead of converting into lifting capacity.
  • Material type – the best choice is pure iron steel. Stainless steels may attract less.
  • Plate texture – ground elements guarantee perfect abutment, which increases force. Rough surfaces reduce efficiency.
  • Thermal conditions – neodymium magnets have a negative temperature coefficient. At higher temperatures they lose power, and at low temperatures gain strength (up to a certain limit).

Lifting capacity testing was conducted on a smooth plate of suitable thickness, under a perpendicular pulling force, in contrast under attempts to slide the magnet the lifting capacity is smaller. Moreover, even a slight gap between the magnet’s surface and the plate lowers the lifting capacity.

Warnings
Threat to electronics

Data protection: Neodymium magnets can damage payment cards and sensitive devices (pacemakers, hearing aids, mechanical watches).

Hand protection

Big blocks can break fingers in a fraction of a second. Under no circumstances put your hand betwixt two attracting surfaces.

Keep away from electronics

A powerful magnetic field negatively affects the functioning of magnetometers in phones and GPS navigation. Maintain magnets close to a device to avoid breaking the sensors.

Danger to pacemakers

Health Alert: Strong magnets can turn off pacemakers and defibrillators. Stay away if you have electronic implants.

Heat sensitivity

Keep cool. NdFeB magnets are sensitive to heat. If you need operation above 80°C, inquire about HT versions (H, SH, UH).

Handling rules

Before starting, read the rules. Sudden snapping can destroy the magnet or hurt your hand. Be predictive.

Nickel allergy

A percentage of the population have a contact allergy to Ni, which is the standard coating for NdFeB magnets. Extended handling can result in skin redness. We strongly advise wear safety gloves.

This is not a toy

Neodymium magnets are not toys. Swallowing several magnets may result in them attracting across intestines, which constitutes a severe health hazard and requires urgent medical intervention.

Protective goggles

Protect your eyes. Magnets can explode upon uncontrolled impact, launching shards into the air. Eye protection is mandatory.

Flammability

Combustion risk: Rare earth powder is explosive. Avoid machining magnets without safety gear as this risks ignition.

Warning! Want to know more? Check our post: Why are neodymium magnets dangerous?