Neodymium magnets – most powerful on the market

Want to buy really powerful magnets? Our range includes complete range of disc, cylindrical and ring magnets. Perfect for for home use, garage and industrial tasks. Check our offer in stock.

see magnet catalog

Equipment for treasure hunters

Discover your passion related to seabed exploration! Our specialized grips (F200, F400) provide grip certainty and immense power. Stainless steel construction and reinforced ropes will perform in rivers and lakes.

find searching equipment

Magnetic mounting systems

Professional solutions for mounting non-invasive. Threaded grips (M8, M10, M12) guarantee quick improvement of work on production halls. Perfect for installing lighting, detectors and ads.

check industrial applications

📦 Fast shipping: buy by 14:00, package goes out today!

Dhit sp. z o.o.
Product available Ships today (order by 14:00)

MW 8x8 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010106

GTIN/EAN: 5906301811053

5.00

Diameter Ø

8 mm [±0,1 mm]

Height

8 mm [±0,1 mm]

Weight

3.02 g

Magnetization Direction

↑ axial

Load capacity

2.03 kg / 19.92 N

Magnetic Induction

553.67 mT / 5537 Gs

Coating

[NiCuNi] Nickel

1.341 with VAT / pcs + price for transport

1.090 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs
1.090 ZŁ
1.341 ZŁ
price from 600 pcs
1.025 ZŁ
1.260 ZŁ
price from 2300 pcs
0.959 ZŁ
1.180 ZŁ
Looking for a better price?

Call us now +48 22 499 98 98 or drop us a message through our online form the contact section.
Specifications and form of magnetic components can be reviewed using our magnetic calculator.

Order by 14:00 and we’ll ship today!

Product card - MW 8x8 / N38 - cylindrical magnet

Specification / characteristics - MW 8x8 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010106
GTIN/EAN 5906301811053
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 8 mm [±0,1 mm]
Height 8 mm [±0,1 mm]
Weight 3.02 g
Magnetization Direction ↑ axial
Load capacity ~ ? 2.03 kg / 19.92 N
Magnetic Induction ~ ? 553.67 mT / 5537 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 8x8 / 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 simulation of the assembly - data

The following values represent the result of a engineering simulation. Results rely on models for the class Nd2Fe14B. Real-world performance may differ from theoretical values. Use these calculations as a supplementary guide for designers.

Table 1: Static pull force (force vs distance) - characteristics
MW 8x8 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 5531 Gs
553.1 mT
2.03 kg / 4.48 LBS
2030.0 g / 19.9 N
medium risk
1 mm 4162 Gs
416.2 mT
1.15 kg / 2.53 LBS
1149.3 g / 11.3 N
low risk
2 mm 2984 Gs
298.4 mT
0.59 kg / 1.30 LBS
590.7 g / 5.8 N
low risk
3 mm 2107 Gs
210.7 mT
0.29 kg / 0.65 LBS
294.5 g / 2.9 N
low risk
5 mm 1084 Gs
108.4 mT
0.08 kg / 0.17 LBS
78.0 g / 0.8 N
low risk
10 mm 296 Gs
29.6 mT
0.01 kg / 0.01 LBS
5.8 g / 0.1 N
low risk
15 mm 118 Gs
11.8 mT
0.00 kg / 0.00 LBS
0.9 g / 0.0 N
low risk
20 mm 58 Gs
5.8 mT
0.00 kg / 0.00 LBS
0.2 g / 0.0 N
low risk
30 mm 20 Gs
2.0 mT
0.00 kg / 0.00 LBS
0.0 g / 0.0 N
low risk
50 mm 5 Gs
0.5 mT
0.00 kg / 0.00 LBS
0.0 g / 0.0 N
low risk

Table 2: Vertical capacity (vertical surface)
MW 8x8 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.41 kg / 0.90 LBS
406.0 g / 4.0 N
1 mm Stal (~0.2) 0.23 kg / 0.51 LBS
230.0 g / 2.3 N
2 mm Stal (~0.2) 0.12 kg / 0.26 LBS
118.0 g / 1.2 N
3 mm Stal (~0.2) 0.06 kg / 0.13 LBS
58.0 g / 0.6 N
5 mm Stal (~0.2) 0.02 kg / 0.04 LBS
16.0 g / 0.2 N
10 mm Stal (~0.2) 0.00 kg / 0.00 LBS
2.0 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 (shearing) - behavior on slippery surfaces
MW 8x8 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.61 kg / 1.34 LBS
609.0 g / 6.0 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.41 kg / 0.90 LBS
406.0 g / 4.0 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.20 kg / 0.45 LBS
203.0 g / 2.0 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
1.02 kg / 2.24 LBS
1015.0 g / 10.0 N

Table 4: Material efficiency (substrate influence) - sheet metal selection
MW 8x8 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
0.20 kg / 0.45 LBS
203.0 g / 2.0 N
1 mm
25%
0.51 kg / 1.12 LBS
507.5 g / 5.0 N
2 mm
50%
1.02 kg / 2.24 LBS
1015.0 g / 10.0 N
3 mm
75%
1.52 kg / 3.36 LBS
1522.5 g / 14.9 N
5 mm
100%
2.03 kg / 4.48 LBS
2030.0 g / 19.9 N
10 mm
100%
2.03 kg / 4.48 LBS
2030.0 g / 19.9 N
11 mm
100%
2.03 kg / 4.48 LBS
2030.0 g / 19.9 N
12 mm
100%
2.03 kg / 4.48 LBS
2030.0 g / 19.9 N

Table 5: Thermal stability (material behavior) - resistance threshold
MW 8x8 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 2.03 kg / 4.48 LBS
2030.0 g / 19.9 N
OK
40 °C -2.2% 1.99 kg / 4.38 LBS
1985.3 g / 19.5 N
OK
60 °C -4.4% 1.94 kg / 4.28 LBS
1940.7 g / 19.0 N
OK
80 °C -6.6% 1.90 kg / 4.18 LBS
1896.0 g / 18.6 N
100 °C -28.8% 1.45 kg / 3.19 LBS
1445.4 g / 14.2 N

Table 6: Magnet-Magnet interaction (repulsion) - field range
MW 8x8 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Sliding Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 9.48 kg / 20.90 LBS
6 000 Gs
1.42 kg / 3.14 LBS
1422 g / 14.0 N
N/A
1 mm 7.26 kg / 16.01 LBS
9 682 Gs
1.09 kg / 2.40 LBS
1089 g / 10.7 N
6.54 kg / 14.41 LBS
~0 Gs
2 mm 5.37 kg / 11.83 LBS
8 324 Gs
0.81 kg / 1.78 LBS
805 g / 7.9 N
4.83 kg / 10.65 LBS
~0 Gs
3 mm 3.88 kg / 8.55 LBS
7 074 Gs
0.58 kg / 1.28 LBS
582 g / 5.7 N
3.49 kg / 7.69 LBS
~0 Gs
5 mm 1.95 kg / 4.30 LBS
5 016 Gs
0.29 kg / 0.64 LBS
292 g / 2.9 N
1.75 kg / 3.87 LBS
~0 Gs
10 mm 0.36 kg / 0.80 LBS
2 169 Gs
0.05 kg / 0.12 LBS
55 g / 0.5 N
0.33 kg / 0.72 LBS
~0 Gs
20 mm 0.03 kg / 0.06 LBS
592 Gs
0.00 kg / 0.01 LBS
4 g / 0.0 N
0.02 kg / 0.05 LBS
~0 Gs
50 mm 0.00 kg / 0.00 LBS
66 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
41 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
27 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
19 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
14 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
10 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
0.00 kg / 0.00 LBS
~0 Gs

Table 7: Hazards (implants) - precautionary measures
MW 8x8 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 5.5 cm
Hearing aid 10 Gs (1.0 mT) 4.0 cm
Mechanical watch 20 Gs (2.0 mT) 3.5 cm
Phone / Smartphone 40 Gs (4.0 mT) 2.5 cm
Car key 50 Gs (5.0 mT) 2.5 cm
Payment card 400 Gs (40.0 mT) 1.0 cm
HDD hard drive 600 Gs (60.0 mT) 1.0 cm

Table 8: Impact energy (kinetic energy) - collision effects
MW 8x8 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 26.19 km/h
(7.28 m/s)
0.08 J
30 mm 45.29 km/h
(12.58 m/s)
0.24 J
50 mm 58.47 km/h
(16.24 m/s)
0.40 J
100 mm 82.68 km/h
(22.97 m/s)
0.80 J

Table 9: Surface protection spec
MW 8x8 / 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 8x8 / N38

Parameter Value SI Unit / Description
Magnetic Flux 2 868 Mx 28.7 µWb
Pc Coefficient 0.89 High (Stable)

Table 11: Underwater work (magnet fishing)
MW 8x8 / N38

Environment Effective steel pull Effect
Air (land) 2.03 kg Standard
Water (riverbed) 2.32 kg
(+0.29 kg buoyancy gain)
+14.5%
Rust risk: 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 wall, the magnet holds only ~20% of its nominal pull.

2. Plate thickness effect

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

3. Power loss vs temp

*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 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%
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: 010106-2026
Quick Unit Converter
Force (pull)

Field Strength

Other offers

The offered product is a very strong rod magnet, produced from durable NdFeB material, which, with dimensions of Ø8x8 mm, guarantees the highest energy density. The MW 8x8 / N38 component boasts a tolerance of ±0.1mm and professional build quality, making it a perfect solution for professional engineers and designers. As a cylindrical magnet with significant force (approx. 2.03 kg), this product is in stock 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.
This model is created for building electric motors, advanced sensors, and efficient magnetic separators, where maximum induction on a small surface counts. Thanks to the pull force of 19.92 N with a weight of only 3.02 g, this rod is indispensable in electronics and wherever low weight is crucial.
Due to the delicate structure of the ceramic sinter, we absolutely advise against force-fitting (so-called press-fit), as this risks chipping the coating of this professional component. To ensure stability in industry, specialized industrial adhesives are used, which are safe for nickel and fill the gap, guaranteeing durability of the connection.
Magnets NdFeB grade N38 are suitable for the majority 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 (Ø8x8), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our warehouse.
The presented product is a neodymium magnet with precisely defined parameters: diameter 8 mm and height 8 mm. The value of 19.92 N means that the magnet is capable of holding a weight many times exceeding its own mass of 3.02 g. 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 8 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 as well as cons of neodymium magnets.

Advantages

Besides their high retention, neodymium magnets are valued for these benefits:
  • They retain magnetic properties for almost ten years – the loss is just ~1% (according to analyses),
  • Magnets very well defend themselves against demagnetization caused by ambient magnetic noise,
  • A magnet with a metallic silver surface has an effective appearance,
  • Magnets possess impressive magnetic induction on the working surface,
  • Thanks to resistance to high temperature, they are capable of working (depending on the shape) even at temperatures up to 230°C and higher...
  • Considering the potential of free molding and customization to custom needs, NdFeB magnets can be modeled in a wide range of geometric configurations, which increases their versatility,
  • Universal use in future technologies – they are utilized in hard drives, drive modules, advanced medical instruments, and technologically advanced constructions.
  • Compactness – despite small sizes they generate large force, making them ideal for precision applications

Disadvantages

Disadvantages of neodymium magnets:
  • At very strong impacts they can crack, therefore we recommend placing them in strong housings. A metal housing provides additional protection against damage and 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 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
  • When exposed to humidity, magnets start to rust. To use them in conditions outside, it is recommended to use protective magnets, such as those in rubber or plastics, which prevent oxidation and corrosion.
  • Due to limitations in producing threads and complicated forms in magnets, we recommend using casing - magnetic mount.
  • Health risk to health – tiny shards of magnets pose a threat, if swallowed, which is particularly important in the context of child safety. It is also worth noting that small elements of these devices are able to complicate diagnosis medical when they are in the body.
  • Due to expensive raw materials, their price exceeds standard values,

Pull force analysis

Maximum lifting capacity of the magnetwhat it depends on?

Information about lifting capacity was defined for ideal contact conditions, including:
  • on a plate made of mild steel, effectively closing the magnetic field
  • with a cross-section no less than 10 mm
  • with an polished contact surface
  • with direct contact (no paint)
  • during pulling in a direction vertical to the mounting surface
  • at conditions approx. 20°C

Lifting capacity in real conditions – factors

Effective lifting capacity is influenced by working environment parameters, such as (from priority):
  • Distance (between the magnet and the metal), as 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, corrosion or dirt).
  • Loading method – catalog parameter refers to detachment vertically. When slipping, the magnet holds much less (typically approx. 20-30% of maximum force).
  • Element thickness – for full efficiency, the steel must be sufficiently thick. Paper-thin metal restricts the lifting capacity (the magnet "punches through" it).
  • Metal type – not every steel attracts identically. High carbon content weaken the interaction with the magnet.
  • Plate texture – ground elements guarantee perfect abutment, which improves force. Rough surfaces reduce efficiency.
  • Thermal conditions – NdFeB sinters have a negative temperature coefficient. At higher temperatures they are weaker, and in frost they can be stronger (up to a certain limit).

Lifting capacity was measured by applying a smooth steel plate of optimal thickness (min. 20 mm), under vertically applied force, in contrast under shearing force the lifting capacity is smaller. Additionally, even a slight gap between the magnet and the plate lowers the load capacity.

H&S for magnets
Danger to the youngest

Product intended for adults. Tiny parts can be swallowed, leading to intestinal necrosis. Keep out of reach of children and animals.

Metal Allergy

Warning for allergy sufferers: The nickel-copper-nickel coating consists of nickel. If redness happens, cease working with magnets and use protective gear.

Shattering risk

Protect your eyes. Magnets can explode upon uncontrolled impact, ejecting sharp fragments into the air. Wear goggles.

Health Danger

For implant holders: Powerful magnets disrupt medical devices. Keep minimum 30 cm distance or ask another person to work with the magnets.

Maximum temperature

Monitor thermal conditions. Heating the magnet to high heat will destroy its magnetic structure and pulling force.

Compass and GPS

GPS units and smartphones are highly sensitive to magnetic fields. Direct contact with a strong magnet can decalibrate the sensors in your phone.

Respect the power

Before starting, read the rules. Sudden snapping can destroy the magnet or injure your hand. Think ahead.

Hand protection

Watch your fingers. Two powerful magnets will snap together immediately with a force of massive weight, crushing anything in their path. Be careful!

Keep away from computers

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

Fire warning

Fire hazard: Rare earth powder is highly flammable. Avoid machining magnets without safety gear as this may cause fire.

Important! Want to know more? Read our article: Why are neodymium magnets dangerous?
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98