tel: +48 888 99 98 98

Powerful neodymium magnets: discs and cylinders

Need strong magnetic field? We offer complete range of disc, cylindrical and ring magnets. They are ideal for domestic applications, workshop and industrial tasks. Browse assortment in stock.

check price list and dimensions

Equipment for treasure hunters

Begin your hobby involving underwater treasure hunting! Our double-handle grips (F200, F400) provide grip certainty and huge lifting capacity. Solid, corrosion-resistant housing and reinforced ropes are reliable in challenging water conditions.

find your set

Magnetic solutions for business

Professional solutions for fixing without drilling. Threaded mounts (external or internal) guarantee instant organization of work on warehouses. They are indispensable installing lamps, detectors and banners.

check technical specs

🚀 Express processing: orders by 14:00 shipped within 24h!

Dhit sp. z o.o.
Product available Ships tomorrow

MW 16x9 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010035

GTIN/EAN: 5906301810346

5.00

Diameter Ø

16 mm [±0,1 mm]

Height

9 mm [±0,1 mm]

Weight

13.57 g

Magnetization Direction

↑ axial

Load capacity

8.53 kg / 83.64 N

Magnetic Induction

463.05 mT / 4631 Gs

Coating

[NiCuNi] Nickel

7.36 with VAT / pcs + price for transport

5.98 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs
5.98 ZŁ
7.36 ZŁ
price from 150 pcs
5.62 ZŁ
6.91 ZŁ
price from 450 pcs
5.26 ZŁ
6.47 ZŁ
Not sure what to buy?

Call us now +48 888 99 98 98 if you prefer get in touch through request form through our site.
Parameters along with form of a neodymium magnet can be reviewed using our our magnetic calculator.

Orders placed before 14:00 will be shipped the same business day.

Technical of the product - MW 16x9 / N38 - cylindrical magnet

Specification / characteristics - MW 16x9 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010035
GTIN/EAN 5906301810346
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 16 mm [±0,1 mm]
Height 9 mm [±0,1 mm]
Weight 13.57 g
Magnetization Direction ↑ axial
Load capacity ~ ? 8.53 kg / 83.64 N
Magnetic Induction ~ ? 463.05 mT / 4631 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 16x9 / 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

Physical analysis of the magnet - report

The following data are the outcome of a engineering simulation. Values rely on models for the class Nd2Fe14B. Operational parameters might slightly differ from theoretical values. Treat these data as a reference point for designers.

Table 1: Static pull force (force vs distance) - characteristics
MW 16x9 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg) Risk Status
0 mm 4628 Gs
462.8 mT
8.53 kg / 8530.0 g
83.7 N
medium risk
1 mm 4072 Gs
407.2 mT
6.60 kg / 6603.5 g
64.8 N
medium risk
2 mm 3510 Gs
351.0 mT
4.91 kg / 4906.8 g
48.1 N
medium risk
3 mm 2982 Gs
298.2 mT
3.54 kg / 3540.1 g
34.7 N
medium risk
5 mm 2097 Gs
209.7 mT
1.75 kg / 1751.1 g
17.2 N
safe
10 mm 873 Gs
87.3 mT
0.30 kg / 303.3 g
3.0 N
safe
15 mm 411 Gs
41.1 mT
0.07 kg / 67.3 g
0.7 N
safe
20 mm 220 Gs
22.0 mT
0.02 kg / 19.3 g
0.2 N
safe
30 mm 83 Gs
8.3 mT
0.00 kg / 2.7 g
0.0 N
safe
50 mm 22 Gs
2.2 mT
0.00 kg / 0.2 g
0.0 N
safe

Table 2: Vertical load (vertical surface)
MW 16x9 / N38

Distance (mm) Friction coefficient Pull Force (kg)
0 mm Stal (~0.2) 1.71 kg / 1706.0 g
16.7 N
1 mm Stal (~0.2) 1.32 kg / 1320.0 g
12.9 N
2 mm Stal (~0.2) 0.98 kg / 982.0 g
9.6 N
3 mm Stal (~0.2) 0.71 kg / 708.0 g
6.9 N
5 mm Stal (~0.2) 0.35 kg / 350.0 g
3.4 N
10 mm Stal (~0.2) 0.06 kg / 60.0 g
0.6 N
15 mm Stal (~0.2) 0.01 kg / 14.0 g
0.1 N
20 mm Stal (~0.2) 0.00 kg / 4.0 g
0.0 N
30 mm Stal (~0.2) 0.00 kg / 0.0 g
0.0 N
50 mm Stal (~0.2) 0.00 kg / 0.0 g
0.0 N

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MW 16x9 / N38

Surface type Friction coefficient / % Mocy Max load (kg)
Raw steel
µ = 0.3 30% Nominalnej Siły
2.56 kg / 2559.0 g
25.1 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
1.71 kg / 1706.0 g
16.7 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.85 kg / 853.0 g
8.4 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
4.27 kg / 4265.0 g
41.8 N

Table 4: Material efficiency (substrate influence) - power losses
MW 16x9 / N38

Steel thickness (mm) % power Real pull force (kg)
0.5 mm
10%
0.85 kg / 853.0 g
8.4 N
1 mm
25%
2.13 kg / 2132.5 g
20.9 N
2 mm
50%
4.27 kg / 4265.0 g
41.8 N
5 mm
100%
8.53 kg / 8530.0 g
83.7 N
10 mm
100%
8.53 kg / 8530.0 g
83.7 N

Table 5: Thermal stability (stability) - power drop
MW 16x9 / N38

Ambient temp. (°C) Power loss Remaining pull Status
20 °C 0.0% 8.53 kg / 8530.0 g
83.7 N
OK
40 °C -2.2% 8.34 kg / 8342.3 g
81.8 N
OK
60 °C -4.4% 8.15 kg / 8154.7 g
80.0 N
OK
80 °C -6.6% 7.97 kg / 7967.0 g
78.2 N
100 °C -28.8% 6.07 kg / 6073.4 g
59.6 N

Table 6: Two magnets (attraction) - field collision
MW 16x9 / N38

Gap (mm) Attraction (kg) (N-S) Repulsion (kg) (N-N)
0 mm 26.55 kg / 26554 g
260.5 N
5 658 Gs
N/A
1 mm 23.52 kg / 23517 g
230.7 N
8 711 Gs
21.17 kg / 21165 g
207.6 N
~0 Gs
2 mm 20.56 kg / 20557 g
201.7 N
8 145 Gs
18.50 kg / 18501 g
181.5 N
~0 Gs
3 mm 17.80 kg / 17796 g
174.6 N
7 578 Gs
16.02 kg / 16017 g
157.1 N
~0 Gs
5 mm 13.01 kg / 13015 g
127.7 N
6 481 Gs
11.71 kg / 11713 g
114.9 N
~0 Gs
10 mm 5.45 kg / 5451 g
53.5 N
4 194 Gs
4.91 kg / 4906 g
48.1 N
~0 Gs
20 mm 0.94 kg / 944 g
9.3 N
1 746 Gs
0.85 kg / 850 g
8.3 N
~0 Gs
50 mm 0.02 kg / 21 g
0.2 N
260 Gs
0.02 kg / 19 g
0.2 N
~0 Gs

Table 7: Safety (HSE) (implants) - warnings
MW 16x9 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 8.5 cm
Hearing aid 10 Gs (1.0 mT) 7.0 cm
Timepiece 20 Gs (2.0 mT) 5.5 cm
Mobile device 40 Gs (4.0 mT) 4.0 cm
Car key 50 Gs (5.0 mT) 4.0 cm
Payment card 400 Gs (40.0 mT) 2.0 cm
HDD hard drive 600 Gs (60.0 mT) 1.5 cm

Table 8: Collisions (cracking risk) - warning
MW 16x9 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 25.84 km/h
(7.18 m/s)
0.35 J
30 mm 43.80 km/h
(12.17 m/s)
1.00 J
50 mm 56.54 km/h
(15.71 m/s)
1.67 J
100 mm 79.96 km/h
(22.21 m/s)
3.35 J

Table 9: Coating parameters (durability)
MW 16x9 / 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 16x9 / N38

Parameter Value SI Unit / Description
Magnetic Flux 9 394 Mx 93.9 µWb
Pc Coefficient 0.63 High (Stable)

Table 11: Submerged application
MW 16x9 / N38

Environment Effective steel pull Effect
Air (land) 8.53 kg Standard
Water (riverbed) 9.77 kg
(+1.24 kg Buoyancy gain)
+14.5%
Corrosion warning: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!
1. Shear force

*Caution: On a vertical surface, the magnet retains only approx. 20-30% of its nominal pull.

2. Efficiency vs thickness

*Thin steel (e.g. computer case) drastically reduces the holding force.

3. Heat tolerance

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

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.63

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%
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: 010035-2025
Magnet Unit Converter
Magnet pull force

Magnetic Induction

Other products

The offered product is a very strong rod magnet, produced from advanced NdFeB material, which, with dimensions of Ø16x9 mm, guarantees the highest energy density. The MW 16x9 / N38 component is characterized by high dimensional repeatability and professional build quality, making it an ideal solution for professional engineers and designers. As a magnetic rod with impressive force (approx. 8.53 kg), this product is in stock from our warehouse in Poland, ensuring rapid order fulfillment. Additionally, its Ni-Cu-Ni coating shields it against corrosion in standard operating conditions, ensuring 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 83.64 N with a weight of only 13.57 g, this rod is indispensable in electronics 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 immediate cracking of this professional component. To ensure long-term durability in automation, anaerobic resins are used, which are safe for nickel and fill the gap, guaranteeing high repeatability of the connection.
Magnets N38 are strong enough for 90% of applications in modeling and machine building, where excessive miniaturization with maximum force is not required. If you need even stronger magnets in the same volume (Ø16x9), 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 Ø16x9 mm, which, at a weight of 13.57 g, makes it an element with high magnetic energy density. The value of 83.64 N means that the magnet is capable of holding a weight many times exceeding its own mass of 13.57 g. 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 16 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 diametrically if your project requires it.

Pros and cons of rare earth magnets.

Pros

Besides their stability, neodymium magnets are valued for these benefits:
  • They virtually do not lose power, because even after 10 years the performance loss is only ~1% (based on calculations),
  • Magnets perfectly defend themselves against demagnetization caused by ambient magnetic noise,
  • In other words, due to the aesthetic finish of silver, the element gains a professional look,
  • They feature high magnetic induction at the operating surface, which improves attraction properties,
  • Due to their durability and thermal resistance, neodymium magnets can operate (depending on the shape) even at high temperatures reaching 230°C or more...
  • Thanks to flexibility in designing and the ability to customize to individual projects,
  • Universal use in modern industrial fields – they are used in mass storage devices, electric drive systems, advanced medical instruments, as well as technologically advanced constructions.
  • Thanks to their power density, small magnets offer high operating force, in miniature format,

Limitations

Disadvantages of NdFeB magnets:
  • To avoid cracks upon strong impacts, we suggest using special steel holders. Such a solution secures the magnet and simultaneously improves its durability.
  • 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
  • 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 producing nuts in the magnet and complicated shapes - preferred is casing - mounting mechanism.
  • Possible danger to health – tiny shards of magnets are risky, in case of ingestion, which becomes key in the aspect of protecting the youngest. It is also worth noting that small components of these devices can disrupt the diagnostic process medical after entering the body.
  • With large orders the cost of neodymium magnets is economically unviable,

Pull force analysis

Magnetic strength at its maximum – what affects it?

The load parameter shown concerns the limit force, measured under ideal test conditions, namely:
  • with the contact of a yoke made of low-carbon steel, guaranteeing maximum field concentration
  • with a cross-section minimum 10 mm
  • with an ground contact surface
  • without the slightest clearance between the magnet and steel
  • under axial application of breakaway force (90-degree angle)
  • in stable room temperature

Determinants of practical lifting force of a magnet

In practice, the actual holding force is determined by many variables, listed from the most important:
  • Space between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by veneer or unevenness) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
  • Direction of force – highest force is reached only during perpendicular pulling. The shear force of the magnet along the surface is typically several times lower (approx. 1/5 of the lifting capacity).
  • Wall thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field penetrates through instead of converting into lifting capacity.
  • Steel type – low-carbon steel attracts best. Alloy admixtures decrease magnetic properties and holding force.
  • Surface condition – smooth surfaces guarantee perfect abutment, which increases force. Rough surfaces weaken the grip.
  • Temperature – heating the magnet causes a temporary drop of induction. It is worth remembering the thermal limit for a given model.

Holding force was tested on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, whereas under shearing force the lifting capacity is smaller. Moreover, even a slight gap between the magnet’s surface and the plate lowers the load capacity.

Warnings
No play value

Strictly keep magnets out of reach of children. Ingestion danger is significant, and the consequences of magnets clamping inside the body are life-threatening.

Permanent damage

Regular neodymium magnets (grade N) undergo demagnetization when the temperature exceeds 80°C. Damage is permanent.

Protect data

Intense magnetic fields can erase data on credit cards, HDDs, and other magnetic media. Maintain a gap of min. 10 cm.

Immense force

Before starting, check safety instructions. Sudden snapping can destroy the magnet or injure your hand. Think ahead.

Magnet fragility

Protect your eyes. Magnets can fracture upon uncontrolled impact, launching shards into the air. Wear goggles.

Pinching danger

Mind your fingers. Two large magnets will snap together immediately with a force of several hundred kilograms, destroying everything in their path. Exercise extreme caution!

Pacemakers

Individuals with a ICD have to maintain an large gap from magnets. The magnetism can interfere with the functioning of the life-saving device.

Flammability

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

Keep away from electronics

Navigation devices and smartphones are highly sensitive to magnetic fields. Direct contact with a powerful NdFeB magnet can ruin the internal compass in your phone.

Metal Allergy

Certain individuals have a hypersensitivity to nickel, which is the common plating for neodymium magnets. Extended handling may cause an allergic reaction. We suggest wear safety gloves.

Important! More info about risks in the article: Safety of working with magnets.
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98