Neodymium magnets – most powerful on the market

Looking for massive power in small size? Our range includes rich assortment of various shapes and sizes. Perfect for for home use, garage and model making. Check our offer with fast shipping.

see price list and dimensions

Magnet fishing: strong F200/F400 sets

Discover your passion related to seabed exploration! Our double-handle grips (F200, F400) provide safety guarantee and immense power. Stainless steel construction and strong lines are reliable in rivers and lakes.

find your set

Magnetic mounts for industry

Professional solutions for mounting without drilling. Threaded grips (external or internal) guarantee instant organization of work on production halls. They are indispensable mounting lighting, sensors and banners.

see industrial applications

🚀 Lightning processing: orders by 14:00 shipped immediately!

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

MW 7x2 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010099

GTIN/EAN: 5906301810988

5.00

Diameter Ø

7 mm [±0,1 mm]

Height

2 mm [±0,1 mm]

Weight

0.58 g

Magnetization Direction

↑ axial

Load capacity

0.99 kg / 9.76 N

Magnetic Induction

307.23 mT / 3072 Gs

Coating

[NiCuNi] Nickel

0.381 with VAT / pcs + price for transport

0.310 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs
0.310 ZŁ
0.381 ZŁ
price from 2100 pcs
0.279 ZŁ
0.343 ZŁ
price from 3000 pcs
0.273 ZŁ
0.336 ZŁ
Want to negotiate?

Call us now +48 888 99 98 98 alternatively let us know by means of our online form the contact page.
Weight as well as form of a magnet can be estimated using our force calculator.

Same-day processing for orders placed before 14:00.

Technical - MW 7x2 / N38 - cylindrical magnet

Specification / characteristics - MW 7x2 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010099
GTIN/EAN 5906301810988
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 7 mm [±0,1 mm]
Height 2 mm [±0,1 mm]
Weight 0.58 g
Magnetization Direction ↑ axial
Load capacity ~ ? 0.99 kg / 9.76 N
Magnetic Induction ~ ? 307.23 mT / 3072 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 7x2 / 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 magnet - technical parameters

Presented values are the result of a engineering calculation. Results were calculated on algorithms for the class Nd2Fe14B. Actual parameters might slightly differ from theoretical values. Treat these calculations as a preliminary roadmap during assembly planning.

Table 1: Static force (pull vs distance) - power drop
MW 7x2 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 3070 Gs
307.0 mT
0.99 kg / 2.18 lbs
990.0 g / 9.7 N
weak grip
1 mm 2332 Gs
233.2 mT
0.57 kg / 1.26 lbs
571.1 g / 5.6 N
weak grip
2 mm 1590 Gs
159.0 mT
0.27 kg / 0.59 lbs
265.5 g / 2.6 N
weak grip
3 mm 1044 Gs
104.4 mT
0.11 kg / 0.25 lbs
114.6 g / 1.1 N
weak grip
5 mm 466 Gs
46.6 mT
0.02 kg / 0.05 lbs
22.8 g / 0.2 N
weak grip
10 mm 100 Gs
10.0 mT
0.00 kg / 0.00 lbs
1.1 g / 0.0 N
weak grip
15 mm 35 Gs
3.5 mT
0.00 kg / 0.00 lbs
0.1 g / 0.0 N
weak grip
20 mm 16 Gs
1.6 mT
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
weak grip
30 mm 5 Gs
0.5 mT
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
weak grip
50 mm 1 Gs
0.1 mT
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
weak grip

Table 2: Sliding hold (vertical surface)
MW 7x2 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.20 kg / 0.44 lbs
198.0 g / 1.9 N
1 mm Stal (~0.2) 0.11 kg / 0.25 lbs
114.0 g / 1.1 N
2 mm Stal (~0.2) 0.05 kg / 0.12 lbs
54.0 g / 0.5 N
3 mm Stal (~0.2) 0.02 kg / 0.05 lbs
22.0 g / 0.2 N
5 mm Stal (~0.2) 0.00 kg / 0.01 lbs
4.0 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 (shearing) - behavior on slippery surfaces
MW 7x2 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.30 kg / 0.65 lbs
297.0 g / 2.9 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.20 kg / 0.44 lbs
198.0 g / 1.9 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.10 kg / 0.22 lbs
99.0 g / 1.0 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
0.50 kg / 1.09 lbs
495.0 g / 4.9 N

Table 4: Material efficiency (saturation) - sheet metal selection
MW 7x2 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
0.10 kg / 0.22 lbs
99.0 g / 1.0 N
1 mm
25%
0.25 kg / 0.55 lbs
247.5 g / 2.4 N
2 mm
50%
0.50 kg / 1.09 lbs
495.0 g / 4.9 N
3 mm
75%
0.74 kg / 1.64 lbs
742.5 g / 7.3 N
5 mm
100%
0.99 kg / 2.18 lbs
990.0 g / 9.7 N
10 mm
100%
0.99 kg / 2.18 lbs
990.0 g / 9.7 N
11 mm
100%
0.99 kg / 2.18 lbs
990.0 g / 9.7 N
12 mm
100%
0.99 kg / 2.18 lbs
990.0 g / 9.7 N

Table 5: Thermal stability (stability) - thermal limit
MW 7x2 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 0.99 kg / 2.18 lbs
990.0 g / 9.7 N
OK
40 °C -2.2% 0.97 kg / 2.13 lbs
968.2 g / 9.5 N
OK
60 °C -4.4% 0.95 kg / 2.09 lbs
946.4 g / 9.3 N
80 °C -6.6% 0.92 kg / 2.04 lbs
924.7 g / 9.1 N
100 °C -28.8% 0.70 kg / 1.55 lbs
704.9 g / 6.9 N

Table 6: Two magnets (repulsion) - field collision
MW 7x2 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Lateral Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 2.24 kg / 4.93 lbs
4 653 Gs
0.34 kg / 0.74 lbs
335 g / 3.3 N
N/A
1 mm 1.76 kg / 3.89 lbs
5 454 Gs
0.26 kg / 0.58 lbs
265 g / 2.6 N
1.59 kg / 3.50 lbs
~0 Gs
2 mm 1.29 kg / 2.84 lbs
4 663 Gs
0.19 kg / 0.43 lbs
193 g / 1.9 N
1.16 kg / 2.56 lbs
~0 Gs
3 mm 0.89 kg / 1.97 lbs
3 884 Gs
0.13 kg / 0.30 lbs
134 g / 1.3 N
0.81 kg / 1.77 lbs
~0 Gs
5 mm 0.40 kg / 0.87 lbs
2 581 Gs
0.06 kg / 0.13 lbs
59 g / 0.6 N
0.36 kg / 0.78 lbs
~0 Gs
10 mm 0.05 kg / 0.11 lbs
932 Gs
0.01 kg / 0.02 lbs
8 g / 0.1 N
0.05 kg / 0.10 lbs
~0 Gs
20 mm 0.00 kg / 0.01 lbs
200 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
17 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
10 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
6 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
4 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
3 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
2 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) - precautionary measures
MW 7x2 / 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 7x2 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 41.69 km/h
(11.58 m/s)
0.04 J
30 mm 72.17 km/h
(20.05 m/s)
0.12 J
50 mm 93.17 km/h
(25.88 m/s)
0.19 J
100 mm 131.76 km/h
(36.60 m/s)
0.39 J

Table 9: Surface protection spec
MW 7x2 / 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 7x2 / N38

Parameter Value SI Unit / Description
Magnetic Flux 1 284 Mx 12.8 µWb
Pc Coefficient 0.39 Low (Flat)

Table 11: Hydrostatics and buoyancy
MW 7x2 / N38

Environment Effective steel pull Effect
Air (land) 0.99 kg Standard
Water (riverbed) 1.13 kg
(+0.14 kg buoyancy gain)
+14.5%
Warning: Remember to wipe the magnet thoroughly after removing it from water and apply a protective layer (e.g., oil) to avoid corrosion.
1. Shear force

*Caution: On a vertical wall, the magnet holds just ~20% of its max power.

2. Efficiency vs thickness

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

3. Power loss vs temp

*For N38 grade, the max working temp is 80°C.

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.39

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: 010099-2026
Measurement Calculator
Force (pull)

Magnetic Induction

Check out also offers

This product is an incredibly powerful cylindrical magnet, composed of modern NdFeB material, which, with dimensions of Ø7x2 mm, guarantees maximum efficiency. This specific item features high dimensional repeatability and professional build quality, making it an excellent solution for the most demanding engineers and designers. As a magnetic rod with significant force (approx. 0.99 kg), this product is in stock from our warehouse in Poland, ensuring lightning-fast order fulfillment. Furthermore, its triple-layer Ni-Cu-Ni coating secures it against corrosion in standard operating conditions, guaranteeing an aesthetic appearance and durability for years.
This model is ideal for building generators, advanced sensors, and efficient magnetic separators, where field concentration on a small surface counts. Thanks to the high power of 9.76 N with a weight of only 0.58 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., 7.1 mm) using two-component epoxy glues. To ensure long-term durability in industry, specialized industrial adhesives 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 an optimal price-to-power ratio and operational stability. If you need the strongest magnets in the same volume (Ø7x2), 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 Ø7x2 mm, which, at a weight of 0.58 g, makes it an element with high magnetic energy density. The value of 9.76 N means that the magnet is capable of holding a weight many times exceeding its own mass of 0.58 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 7 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 through the diameter if your project requires it.

Pros as well as cons of Nd2Fe14B magnets.

Advantages

Apart from their superior power, neodymium magnets have these key benefits:
  • Their magnetic field remains stable, and after around 10 years it decreases only by ~1% (according to research),
  • They have excellent resistance to magnetic field loss as a result of external magnetic sources,
  • A magnet with a shiny nickel surface has better aesthetics,
  • Magnetic induction on the top side of the magnet is impressive,
  • Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
  • Considering the option of flexible forming and customization to individualized needs, NdFeB magnets can be modeled in a broad palette of forms and dimensions, which increases their versatility,
  • Huge importance in modern technologies – they serve a role in HDD drives, electric drive systems, advanced medical instruments, and technologically advanced constructions.
  • Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Cons

What to avoid - cons of neodymium magnets: application proposals
  • To avoid cracks under impact, we suggest using special steel holders. Such a solution secures the magnet and simultaneously increases its durability.
  • NdFeB magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of strength (a factor is the shape as well as dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are very resistant to heat
  • They rust in a humid environment. For use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
  • Due to limitations in realizing threads and complex forms in magnets, we recommend using casing - magnetic mechanism.
  • Possible danger resulting from small fragments of magnets can be dangerous, in case of ingestion, which gains importance in the aspect of protecting the youngest. Additionally, small components of these magnets are able to disrupt the diagnostic process medical when they are in the body.
  • With mass production the cost of neodymium magnets is economically unviable,

Holding force characteristics

Maximum holding power of the magnet – what it depends on?

The load parameter shown concerns the limit force, recorded under laboratory conditions, specifically:
  • with the application of a yoke made of special test steel, guaranteeing maximum field concentration
  • whose transverse dimension is min. 10 mm
  • with a surface perfectly flat
  • under conditions of ideal adhesion (surface-to-surface)
  • under perpendicular application of breakaway force (90-degree angle)
  • in temp. approx. 20°C

Lifting capacity in practice – influencing factors

Effective lifting capacity impacted by specific conditions, such as (from priority):
  • Air gap (between the magnet and the metal), as even a very small clearance (e.g. 0.5 mm) results in a drastic drop in lifting capacity by up to 50% (this also applies to paint, corrosion or dirt).
  • Force direction – catalog parameter refers to detachment vertically. When attempting to slide, the magnet exhibits much less (often approx. 20-30% of maximum force).
  • Metal thickness – thin material does not allow full use of the magnet. Part of the magnetic field passes through the material instead of generating force.
  • Plate material – low-carbon steel gives the best results. Higher carbon content decrease magnetic properties and lifting capacity.
  • Plate texture – ground elements guarantee perfect abutment, which improves field saturation. Rough surfaces reduce efficiency.
  • Thermal conditions – neodymium magnets have a negative temperature coefficient. When it is hot they lose power, and at low temperatures they can be stronger (up to a certain limit).

Lifting capacity was measured by applying a smooth steel plate of suitable thickness (min. 20 mm), under vertically applied force, whereas under attempts to slide the magnet the lifting capacity is smaller. Moreover, even a small distance between the magnet and the plate lowers the load capacity.

Warnings
Medical implants

Warning for patients: Strong magnetic fields disrupt electronics. Keep minimum 30 cm distance or ask another person to work with the magnets.

Safe operation

Be careful. Rare earth magnets attract from a long distance and connect with massive power, often faster than you can move away.

Heat warning

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

Metal Allergy

Nickel alert: The Ni-Cu-Ni coating consists of nickel. If redness occurs, immediately stop handling magnets and wear gloves.

Bone fractures

Watch your fingers. Two large magnets will join instantly with a force of several hundred kilograms, crushing everything in their path. Be careful!

Keep away from electronics

A powerful magnetic field negatively affects the functioning of compasses in phones and navigation systems. Maintain magnets near a smartphone to prevent breaking the sensors.

Product not for children

Absolutely store magnets away from children. Ingestion danger is high, and the effects of magnets clamping inside the body are very dangerous.

Dust is flammable

Fire hazard: Rare earth powder is explosive. Avoid machining magnets in home conditions as this risks ignition.

Protective goggles

Despite metallic appearance, the material is delicate and cannot withstand shocks. Do not hit, as the magnet may crumble into sharp, dangerous pieces.

Safe distance

Very strong magnetic fields can destroy records on credit cards, HDDs, and storage devices. Keep a distance of min. 10 cm.

Danger! 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