Neodymium magnets: strength you're looking for

Want to buy really powerful magnets? We have in stock wide selection of various shapes and sizes. They are ideal for home use, garage and model making. See products with fast shipping.

check 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 reinforced ropes are reliable in rivers and lakes.

find your set

Magnetic solutions for business

Professional solutions for fixing without drilling. Threaded mounts (M8, M10, M12) guarantee instant organization of work on production halls. They are indispensable mounting lighting, detectors and ads.

check industrial applications

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

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

MW 29x10 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010053

GTIN/EAN: 5906301810520

5.00

Diameter Ø

29 mm [±0,1 mm]

Height

10 mm [±0,1 mm]

Weight

49.54 g

Magnetization Direction

↑ axial

Load capacity

20.82 kg / 204.22 N

Magnetic Induction

351.88 mT / 3519 Gs

Coating

[NiCuNi] Nickel

17.34 with VAT / pcs + price for transport

14.10 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs
14.10 ZŁ
17.34 ZŁ
price from 50 pcs
13.25 ZŁ
16.30 ZŁ
price from 180 pcs
12.41 ZŁ
15.26 ZŁ
Can't decide what to choose?

Call us +48 888 99 98 98 or drop us a message using form our website.
Specifications and shape of a neodymium magnet can be analyzed using our magnetic mass calculator.

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

Technical - MW 29x10 / N38 - cylindrical magnet

Specification / characteristics - MW 29x10 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010053
GTIN/EAN 5906301810520
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 29 mm [±0,1 mm]
Height 10 mm [±0,1 mm]
Weight 49.54 g
Magnetization Direction ↑ axial
Load capacity ~ ? 20.82 kg / 204.22 N
Magnetic Induction ~ ? 351.88 mT / 3519 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 29x10 / 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 modeling of the magnet - data

The following information are the direct effect of a mathematical calculation. Values rely on models for the material Nd2Fe14B. Real-world parameters may differ from theoretical values. Treat these data as a reference point during assembly planning.

Table 1: Static pull force (pull vs distance) - characteristics
MW 29x10 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 3518 Gs
351.8 mT
20.82 kg / 45.90 lbs
20820.0 g / 204.2 N
crushing
1 mm 3321 Gs
332.1 mT
18.55 kg / 40.89 lbs
18548.8 g / 182.0 N
crushing
2 mm 3106 Gs
310.6 mT
16.23 kg / 35.77 lbs
16226.1 g / 159.2 N
crushing
3 mm 2883 Gs
288.3 mT
13.98 kg / 30.82 lbs
13978.2 g / 137.1 N
crushing
5 mm 2437 Gs
243.7 mT
9.99 kg / 22.02 lbs
9987.1 g / 98.0 N
medium risk
10 mm 1500 Gs
150.0 mT
3.78 kg / 8.34 lbs
3783.1 g / 37.1 N
medium risk
15 mm 905 Gs
90.5 mT
1.38 kg / 3.04 lbs
1379.2 g / 13.5 N
low risk
20 mm 563 Gs
56.3 mT
0.53 kg / 1.17 lbs
532.4 g / 5.2 N
low risk
30 mm 247 Gs
24.7 mT
0.10 kg / 0.23 lbs
102.4 g / 1.0 N
low risk
50 mm 72 Gs
7.2 mT
0.01 kg / 0.02 lbs
8.7 g / 0.1 N
low risk

Table 2: Sliding capacity (wall)
MW 29x10 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 4.16 kg / 9.18 lbs
4164.0 g / 40.8 N
1 mm Stal (~0.2) 3.71 kg / 8.18 lbs
3710.0 g / 36.4 N
2 mm Stal (~0.2) 3.25 kg / 7.16 lbs
3246.0 g / 31.8 N
3 mm Stal (~0.2) 2.80 kg / 6.16 lbs
2796.0 g / 27.4 N
5 mm Stal (~0.2) 2.00 kg / 4.40 lbs
1998.0 g / 19.6 N
10 mm Stal (~0.2) 0.76 kg / 1.67 lbs
756.0 g / 7.4 N
15 mm Stal (~0.2) 0.28 kg / 0.61 lbs
276.0 g / 2.7 N
20 mm Stal (~0.2) 0.11 kg / 0.23 lbs
106.0 g / 1.0 N
30 mm Stal (~0.2) 0.02 kg / 0.04 lbs
20.0 g / 0.2 N
50 mm Stal (~0.2) 0.00 kg / 0.00 lbs
2.0 g / 0.0 N

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MW 29x10 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
6.25 kg / 13.77 lbs
6246.0 g / 61.3 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
4.16 kg / 9.18 lbs
4164.0 g / 40.8 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
2.08 kg / 4.59 lbs
2082.0 g / 20.4 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
10.41 kg / 22.95 lbs
10410.0 g / 102.1 N

Table 4: Steel thickness (substrate influence) - sheet metal selection
MW 29x10 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
5%
1.04 kg / 2.30 lbs
1041.0 g / 10.2 N
1 mm
13%
2.60 kg / 5.74 lbs
2602.5 g / 25.5 N
2 mm
25%
5.21 kg / 11.48 lbs
5205.0 g / 51.1 N
3 mm
38%
7.81 kg / 17.21 lbs
7807.5 g / 76.6 N
5 mm
63%
13.01 kg / 28.69 lbs
13012.5 g / 127.7 N
10 mm
100%
20.82 kg / 45.90 lbs
20820.0 g / 204.2 N
11 mm
100%
20.82 kg / 45.90 lbs
20820.0 g / 204.2 N
12 mm
100%
20.82 kg / 45.90 lbs
20820.0 g / 204.2 N

Table 5: Thermal stability (material behavior) - thermal limit
MW 29x10 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 20.82 kg / 45.90 lbs
20820.0 g / 204.2 N
OK
40 °C -2.2% 20.36 kg / 44.89 lbs
20362.0 g / 199.8 N
OK
60 °C -4.4% 19.90 kg / 43.88 lbs
19903.9 g / 195.3 N
80 °C -6.6% 19.45 kg / 42.87 lbs
19445.9 g / 190.8 N
100 °C -28.8% 14.82 kg / 32.68 lbs
14823.8 g / 145.4 N

Table 6: Magnet-Magnet interaction (attraction) - field range
MW 29x10 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Strength (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 50.40 kg / 111.11 lbs
5 016 Gs
7.56 kg / 16.67 lbs
7560 g / 74.2 N
N/A
1 mm 47.70 kg / 105.17 lbs
6 845 Gs
7.16 kg / 15.78 lbs
7156 g / 70.2 N
42.93 kg / 94.65 lbs
~0 Gs
2 mm 44.90 kg / 98.99 lbs
6 641 Gs
6.74 kg / 14.85 lbs
6735 g / 66.1 N
40.41 kg / 89.09 lbs
~0 Gs
3 mm 42.08 kg / 92.77 lbs
6 429 Gs
6.31 kg / 13.92 lbs
6312 g / 61.9 N
37.87 kg / 83.50 lbs
~0 Gs
5 mm 36.52 kg / 80.52 lbs
5 990 Gs
5.48 kg / 12.08 lbs
5478 g / 53.7 N
32.87 kg / 72.47 lbs
~0 Gs
10 mm 24.18 kg / 53.30 lbs
4 873 Gs
3.63 kg / 7.99 lbs
3626 g / 35.6 N
21.76 kg / 47.97 lbs
~0 Gs
20 mm 9.16 kg / 20.19 lbs
2 999 Gs
1.37 kg / 3.03 lbs
1374 g / 13.5 N
8.24 kg / 18.17 lbs
~0 Gs
50 mm 0.54 kg / 1.19 lbs
729 Gs
0.08 kg / 0.18 lbs
81 g / 0.8 N
0.49 kg / 1.07 lbs
~0 Gs
60 mm 0.25 kg / 0.55 lbs
493 Gs
0.04 kg / 0.08 lbs
37 g / 0.4 N
0.22 kg / 0.49 lbs
~0 Gs
70 mm 0.12 kg / 0.27 lbs
347 Gs
0.02 kg / 0.04 lbs
18 g / 0.2 N
0.11 kg / 0.24 lbs
~0 Gs
80 mm 0.06 kg / 0.14 lbs
252 Gs
0.01 kg / 0.02 lbs
10 g / 0.1 N
0.06 kg / 0.13 lbs
~0 Gs
90 mm 0.04 kg / 0.08 lbs
188 Gs
0.01 kg / 0.01 lbs
5 g / 0.1 N
0.03 kg / 0.07 lbs
~0 Gs
100 mm 0.02 kg / 0.05 lbs
144 Gs
0.00 kg / 0.01 lbs
3 g / 0.0 N
0.02 kg / 0.04 lbs
~0 Gs

Table 7: Protective zones (implants) - precautionary measures
MW 29x10 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 13.5 cm
Hearing aid 10 Gs (1.0 mT) 10.5 cm
Mechanical watch 20 Gs (2.0 mT) 8.5 cm
Phone / Smartphone 40 Gs (4.0 mT) 6.5 cm
Remote 50 Gs (5.0 mT) 6.0 cm
Payment card 400 Gs (40.0 mT) 2.5 cm
HDD hard drive 600 Gs (60.0 mT) 2.0 cm

Table 8: Impact energy (cracking risk) - warning
MW 29x10 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 22.90 km/h
(6.36 m/s)
1.00 J
30 mm 35.92 km/h
(9.98 m/s)
2.47 J
50 mm 46.24 km/h
(12.85 m/s)
4.09 J
100 mm 65.38 km/h
(18.16 m/s)
8.17 J

Table 9: Coating parameters (durability)
MW 29x10 / 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 29x10 / N38

Parameter Value SI Unit / Description
Magnetic Flux 24 471 Mx 244.7 µWb
Pc Coefficient 0.45 Low (Flat)

Table 11: Submerged application
MW 29x10 / N38

Environment Effective steel pull Effect
Air (land) 20.82 kg Standard
Water (riverbed) 23.84 kg
(+3.02 kg buoyancy gain)
+14.5%
Rust risk: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.
1. Sliding resistance

*Warning: On a vertical surface, the magnet retains merely approx. 20-30% of its max power.

2. Steel saturation

*Thin steel (e.g. computer case) significantly weakens the holding force.

3. Temperature resistance

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

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.45

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
Chemical composition
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: 010053-2026
Measurement Calculator
Pulling force

Magnetic Induction

Other products

The offered product is an incredibly powerful rod magnet, composed of durable NdFeB material, which, with dimensions of Ø29x10 mm, guarantees optimal power. The MW 29x10 / N38 model is characterized by a tolerance of ±0.1mm and industrial build quality, making it an excellent solution for professional engineers and designers. As a cylindrical magnet with significant force (approx. 20.82 kg), this product is in stock from our warehouse in Poland, ensuring rapid order fulfillment. Additionally, its Ni-Cu-Ni coating secures it against corrosion in standard operating conditions, guaranteeing an aesthetic appearance and durability for years.
It finds application in modeling, advanced robotics, and broadly understood industry, serving as a positioning or actuating element. Thanks to the high power of 204.22 N with a weight of only 49.54 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., 29.1 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 high repeatability of the connection.
Grade N38 is the most popular standard for industrial neodymium magnets, offering a great economic balance and high resistance to demagnetization. If you need even stronger magnets in the same volume (Ø29x10), 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 Ø29x10 mm, which, at a weight of 49.54 g, makes it an element with impressive magnetic energy density. The value of 204.22 N means that the magnet is capable of holding a weight many times exceeding its own mass of 49.54 g. The product has a [NiCuNi] coating, which protects the surface against oxidation, giving it an aesthetic, silvery shine.
This cylinder is magnetized axially (along the height of 10 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 through the diameter if your project requires it.

Advantages and disadvantages of rare earth magnets.

Advantages

Besides their magnetic performance, neodymium magnets are valued for these benefits:
  • They do not lose magnetism, even during nearly ten years – the drop in lifting capacity is only ~1% (according to tests),
  • Neodymium magnets prove to be exceptionally resistant to loss of magnetic properties caused by external magnetic fields,
  • In other words, due to the reflective finish of nickel, the element gains a professional look,
  • Magnets exhibit extremely high magnetic induction on the outer side,
  • 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...
  • Possibility of custom creating as well as modifying to individual applications,
  • Wide application in modern technologies – they are commonly used in hard drives, electromotive mechanisms, advanced medical instruments, and multitasking production systems.
  • Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in compact dimensions, which allows their use in small systems

Weaknesses

Disadvantages of neodymium magnets:
  • They are prone to damage upon heavy impacts. To avoid cracks, it is worth securing magnets in special housings. Such protection not only protects the magnet but also increases its resistance to damage
  • Neodymium magnets lose strength when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of power (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 oxidize in a humid environment. For use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
  • Limited ability of creating nuts in the magnet and complex forms - recommended is a housing - magnetic holder.
  • Health risk related to microscopic parts of magnets pose a threat, if swallowed, which gains importance in the context of child health protection. Additionally, small components of these products are able to disrupt the diagnostic process medical after entering the body.
  • Due to complex production process, their price exceeds standard values,

Lifting parameters

Maximum holding power of the magnet – what contributes to it?

The force parameter is a result of laboratory testing conducted under the following configuration:
  • with the application of a sheet made of low-carbon steel, ensuring maximum field concentration
  • possessing a massiveness of minimum 10 mm to avoid saturation
  • with a plane perfectly flat
  • with zero gap (no coatings)
  • for force applied at a right angle (in the magnet axis)
  • at conditions approx. 20°C

Determinants of practical lifting force of a magnet

Effective lifting capacity impacted by specific conditions, including (from most important):
  • Gap between magnet and steel – even a fraction of a millimeter of separation (caused e.g. by veneer or unevenness) diminishes the pulling force, often by half at just 0.5 mm.
  • Loading method – declared lifting capacity refers to detachment vertically. When applying parallel force, the magnet exhibits significantly lower power (often approx. 20-30% of maximum force).
  • Substrate thickness – to utilize 100% power, the steel must be sufficiently thick. Thin sheet limits the lifting capacity (the magnet "punches through" it).
  • Metal type – not every steel attracts identically. High carbon content worsen the attraction effect.
  • Smoothness – ideal contact is obtained only on smooth steel. Any scratches and bumps create air cushions, reducing force.
  • Temperature influence – hot environment reduces pulling force. Exceeding the limit temperature can permanently damage the magnet.

Lifting capacity was measured with the use of a smooth steel plate of suitable thickness (min. 20 mm), under perpendicular pulling force, whereas under parallel forces the holding force is lower. Additionally, even a small distance between the magnet’s surface and the plate decreases the lifting capacity.

H&S for magnets
Cards and drives

Avoid bringing magnets close to a purse, computer, or screen. The magnetism can destroy these devices and wipe information from cards.

Warning for heart patients

For implant holders: Powerful magnets disrupt medical devices. Maintain at least 30 cm distance or request help to handle the magnets.

Maximum temperature

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

Hand protection

Mind your fingers. Two large magnets will join instantly with a force of several hundred kilograms, crushing anything in their path. Exercise extreme caution!

Protective goggles

Despite the nickel coating, the material is brittle and cannot withstand shocks. Avoid impacts, as the magnet may crumble into sharp, dangerous pieces.

Metal Allergy

Nickel alert: The nickel-copper-nickel coating contains nickel. If skin irritation happens, cease handling magnets and use protective gear.

Product not for children

Neodymium magnets are not toys. Eating multiple magnets may result in them pinching intestinal walls, which constitutes a critical condition and requires immediate surgery.

Flammability

Powder produced during machining of magnets is flammable. Avoid drilling into magnets unless you are an expert.

Handling rules

Before starting, check safety instructions. Uncontrolled attraction can break the magnet or injure your hand. Be predictive.

GPS and phone interference

Note: rare earth magnets generate a field that disrupts precision electronics. Keep a separation from your mobile, device, and navigation systems.

Important! Learn more 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