Neodymiums – complete shape selection

Want to buy really powerful magnets? Our range includes rich assortment of various shapes and sizes. Perfect for for domestic applications, workshop and model making. Check our offer with fast shipping.

discover price list and dimensions

Magnets for seabed exploration

Discover your passion related to seabed exploration! Our specialized grips (F200, F400) provide safety guarantee and immense power. Solid, corrosion-resistant housing and reinforced ropes are reliable in challenging water conditions.

choose your water magnet

Industrial magnetic grips industrial

Proven solutions for fixing non-invasive. Threaded grips (external or internal) guarantee instant organization of work on warehouses. Perfect for mounting lighting, sensors and ads.

see industrial applications

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

Dhit sp. z o.o.
Product available Ships in 2 days

MW 12x2 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010017

GTIN/EAN: 5906301810162

5.00

Diameter Ø

12 mm [±0,1 mm]

Height

2 mm [±0,1 mm]

Weight

1.7 g

Magnetization Direction

↑ axial

Load capacity

1.39 kg / 13.66 N

Magnetic Induction

195.97 mT / 1960 Gs

Coating

[NiCuNi] Nickel

1.132 with VAT / pcs + price for transport

0.920 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs
0.920 ZŁ
1.132 ZŁ
price from 700 pcs
0.865 ZŁ
1.064 ZŁ
price from 2800 pcs
0.810 ZŁ
0.996 ZŁ
Not sure about your choice?

Give us a call +48 22 499 98 98 if you prefer let us know via our online form the contact section.
Lifting power as well as appearance of magnetic components can be reviewed using our power calculator.

Orders submitted before 14:00 will be dispatched today!

Detailed specification - MW 12x2 / N38 - cylindrical magnet

Specification / characteristics - MW 12x2 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010017
GTIN/EAN 5906301810162
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 12 mm [±0,1 mm]
Height 2 mm [±0,1 mm]
Weight 1.7 g
Magnetization Direction ↑ axial
Load capacity ~ ? 1.39 kg / 13.66 N
Magnetic Induction ~ ? 195.97 mT / 1960 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 12x2 / 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 simulation of the magnet - technical parameters

Presented data represent the result of a physical calculation. Values are based on models for the class Nd2Fe14B. Actual parameters may deviate from the simulation results. Please consider these calculations as a supplementary guide when designing systems.

Table 1: Static force (force vs gap) - power drop
MW 12x2 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 1959 Gs
195.9 mT
1.39 kg / 3.06 lbs
1390.0 g / 13.6 N
low risk
1 mm 1753 Gs
175.3 mT
1.11 kg / 2.45 lbs
1113.5 g / 10.9 N
low risk
2 mm 1479 Gs
147.9 mT
0.79 kg / 1.75 lbs
791.7 g / 7.8 N
low risk
3 mm 1196 Gs
119.6 mT
0.52 kg / 1.14 lbs
518.4 g / 5.1 N
low risk
5 mm 738 Gs
73.8 mT
0.20 kg / 0.44 lbs
197.4 g / 1.9 N
low risk
10 mm 229 Gs
22.9 mT
0.02 kg / 0.04 lbs
19.0 g / 0.2 N
low risk
15 mm 90 Gs
9.0 mT
0.00 kg / 0.01 lbs
2.9 g / 0.0 N
low risk
20 mm 43 Gs
4.3 mT
0.00 kg / 0.00 lbs
0.7 g / 0.0 N
low risk
30 mm 14 Gs
1.4 mT
0.00 kg / 0.00 lbs
0.1 g / 0.0 N
low risk
50 mm 3 Gs
0.3 mT
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
low risk

Table 2: Slippage hold (vertical surface)
MW 12x2 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.28 kg / 0.61 lbs
278.0 g / 2.7 N
1 mm Stal (~0.2) 0.22 kg / 0.49 lbs
222.0 g / 2.2 N
2 mm Stal (~0.2) 0.16 kg / 0.35 lbs
158.0 g / 1.5 N
3 mm Stal (~0.2) 0.10 kg / 0.23 lbs
104.0 g / 1.0 N
5 mm Stal (~0.2) 0.04 kg / 0.09 lbs
40.0 g / 0.4 N
10 mm Stal (~0.2) 0.00 kg / 0.01 lbs
4.0 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: Vertical assembly (shearing) - behavior on slippery surfaces
MW 12x2 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.42 kg / 0.92 lbs
417.0 g / 4.1 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.28 kg / 0.61 lbs
278.0 g / 2.7 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.14 kg / 0.31 lbs
139.0 g / 1.4 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
0.70 kg / 1.53 lbs
695.0 g / 6.8 N

Table 4: Material efficiency (substrate influence) - power losses
MW 12x2 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
0.14 kg / 0.31 lbs
139.0 g / 1.4 N
1 mm
25%
0.35 kg / 0.77 lbs
347.5 g / 3.4 N
2 mm
50%
0.70 kg / 1.53 lbs
695.0 g / 6.8 N
3 mm
75%
1.04 kg / 2.30 lbs
1042.5 g / 10.2 N
5 mm
100%
1.39 kg / 3.06 lbs
1390.0 g / 13.6 N
10 mm
100%
1.39 kg / 3.06 lbs
1390.0 g / 13.6 N
11 mm
100%
1.39 kg / 3.06 lbs
1390.0 g / 13.6 N
12 mm
100%
1.39 kg / 3.06 lbs
1390.0 g / 13.6 N

Table 5: Working in heat (material behavior) - resistance threshold
MW 12x2 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 1.39 kg / 3.06 lbs
1390.0 g / 13.6 N
OK
40 °C -2.2% 1.36 kg / 3.00 lbs
1359.4 g / 13.3 N
OK
60 °C -4.4% 1.33 kg / 2.93 lbs
1328.8 g / 13.0 N
80 °C -6.6% 1.30 kg / 2.86 lbs
1298.3 g / 12.7 N
100 °C -28.8% 0.99 kg / 2.18 lbs
989.7 g / 9.7 N

Table 6: Magnet-Magnet interaction (attraction) - field range
MW 12x2 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 2.68 kg / 5.90 lbs
3 435 Gs
0.40 kg / 0.88 lbs
401 g / 3.9 N
N/A
1 mm 2.44 kg / 5.37 lbs
3 739 Gs
0.37 kg / 0.81 lbs
366 g / 3.6 N
2.19 kg / 4.84 lbs
~0 Gs
2 mm 2.14 kg / 4.73 lbs
3 507 Gs
0.32 kg / 0.71 lbs
322 g / 3.2 N
1.93 kg / 4.25 lbs
~0 Gs
3 mm 1.83 kg / 4.04 lbs
3 241 Gs
0.27 kg / 0.61 lbs
275 g / 2.7 N
1.65 kg / 3.63 lbs
~0 Gs
5 mm 1.24 kg / 2.74 lbs
2 671 Gs
0.19 kg / 0.41 lbs
187 g / 1.8 N
1.12 kg / 2.47 lbs
~0 Gs
10 mm 0.38 kg / 0.84 lbs
1 476 Gs
0.06 kg / 0.13 lbs
57 g / 0.6 N
0.34 kg / 0.75 lbs
~0 Gs
20 mm 0.04 kg / 0.08 lbs
458 Gs
0.01 kg / 0.01 lbs
5 g / 0.1 N
0.03 kg / 0.07 lbs
~0 Gs
50 mm 0.00 kg / 0.00 lbs
47 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
28 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
18 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
13 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
9 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
7 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 12x2 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 4.5 cm
Hearing aid 10 Gs (1.0 mT) 3.5 cm
Mechanical watch 20 Gs (2.0 mT) 3.0 cm
Phone / Smartphone 40 Gs (4.0 mT) 2.5 cm
Car key 50 Gs (5.0 mT) 2.0 cm
Payment card 400 Gs (40.0 mT) 1.0 cm
HDD hard drive 600 Gs (60.0 mT) 1.0 cm

Table 8: Collisions (cracking risk) - collision effects
MW 12x2 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 29.08 km/h
(8.08 m/s)
0.06 J
30 mm 49.95 km/h
(13.88 m/s)
0.16 J
50 mm 64.48 km/h
(17.91 m/s)
0.27 J
100 mm 91.19 km/h
(25.33 m/s)
0.55 J

Table 9: Surface protection spec
MW 12x2 / 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 12x2 / N38

Parameter Value SI Unit / Description
Magnetic Flux 2 665 Mx 26.7 µWb
Pc Coefficient 0.25 Low (Flat)

Table 11: Hydrostatics and buoyancy
MW 12x2 / N38

Environment Effective steel pull Effect
Air (land) 1.39 kg Standard
Water (riverbed) 1.59 kg
(+0.20 kg buoyancy gain)
+14.5%
Corrosion warning: Remember to wipe the magnet thoroughly after removing it from water and apply a protective layer (e.g., oil) to avoid corrosion.
1. Sliding resistance

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

2. Steel saturation

*Thin metal sheet (e.g. 0.5mm PC case) severely reduces the holding force.

3. Temperature resistance

*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) = 0.25

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.

Engineering data and GPSR
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%
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: 010017-2026
Measurement Calculator
Force (pull)

Magnetic Field

Other offers

The presented product is an extremely powerful cylinder magnet, produced from durable NdFeB material, which, at dimensions of Ø12x2 mm, guarantees maximum efficiency. The MW 12x2 / N38 model features high dimensional repeatability and professional build quality, making it a perfect solution for professional engineers and designers. As a cylindrical magnet with significant force (approx. 1.39 kg), this product is in stock from our European logistics center, ensuring quick order fulfillment. Additionally, its triple-layer Ni-Cu-Ni coating shields 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 fastening or actuating element. Thanks to the high power of 13.66 N with a weight of only 1.7 g, this rod is indispensable in miniature devices and wherever every gram matters.
Since our magnets have a tolerance of ±0.1mm, the best method is to glue them into holes with a slightly larger diameter (e.g., 12.1 mm) using two-component epoxy glues. To ensure stability in industry, anaerobic resins are used, which are safe for nickel and fill the gap, guaranteeing durability of the connection.
Grade N38 is the most popular standard for professional neodymium magnets, offering a great economic balance and operational stability. If you need even stronger magnets in the same volume (Ø12x2), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our store.
The presented product is a neodymium magnet with precisely defined parameters: diameter 12 mm and height 2 mm. The key parameter here is the lifting capacity amounting to approximately 1.39 kg (force ~13.66 N), which, with such defined dimensions, proves the high grade of the NdFeB material. 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 12 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.

Advantages and disadvantages of Nd2Fe14B magnets.

Benefits

In addition to their magnetic efficiency, neodymium magnets provide the following advantages:
  • They retain attractive force for nearly 10 years – the drop is just ~1% (according to analyses),
  • They are extremely resistant to demagnetization induced by external magnetic fields,
  • A magnet with a metallic nickel surface is more attractive,
  • Neodymium magnets achieve maximum magnetic induction on a contact point, which allows for strong attraction,
  • Due to their durability and thermal resistance, neodymium magnets can operate (depending on the form) even at high temperatures reaching 230°C or more...
  • Thanks to versatility in designing and the ability to adapt to client solutions,
  • Fundamental importance in innovative solutions – they find application in magnetic memories, motor assemblies, medical devices, also multitasking production systems.
  • Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Limitations

Characteristics of disadvantages of neodymium magnets: tips and applications.
  • At strong impacts they can break, therefore we recommend placing them in special holders. A metal housing provides additional protection against damage, as well as 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 power decreases (depending on the size, as well as 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 stable to moisture, in case of application outdoors
  • We suggest a housing - magnetic holder, due to difficulties in creating threads inside the magnet and complex forms.
  • Possible danger to health – tiny shards of magnets are risky, when accidentally swallowed, which is particularly important in the context of child health protection. Additionally, small components of these magnets can be problematic in diagnostics medical in case of swallowing.
  • High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which increases costs of application in large quantities

Holding force characteristics

Maximum holding power of the magnet – what affects it?

Breakaway force was defined for ideal contact conditions, including:
  • on a plate made of structural steel, effectively closing the magnetic flux
  • possessing a massiveness of minimum 10 mm to ensure full flux closure
  • characterized by even structure
  • with total lack of distance (without paint)
  • during detachment in a direction vertical to the plane
  • at ambient temperature approx. 20 degrees Celsius

What influences lifting capacity in practice

During everyday use, the actual lifting capacity results from several key aspects, 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.
  • Loading method – catalog parameter refers to pulling vertically. When attempting to slide, the magnet holds significantly lower power (often approx. 20-30% of maximum force).
  • Element thickness – to utilize 100% power, the steel must be adequately massive. Thin sheet restricts the attraction force (the magnet "punches through" it).
  • Material composition – different alloys reacts the same. High carbon content worsen the interaction with the magnet.
  • Surface condition – smooth surfaces ensure maximum contact, which increases force. Uneven metal weaken the grip.
  • Heat – neodymium magnets have a negative temperature coefficient. At higher temperatures they are weaker, and at low temperatures they can be stronger (up to a certain limit).

Holding force was measured on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, whereas under shearing force the holding force is lower. Additionally, even a slight gap between the magnet and the plate decreases the holding force.

H&S for magnets
Beware of splinters

Watch out for shards. Magnets can explode upon uncontrolled impact, ejecting sharp fragments into the air. We recommend safety glasses.

Thermal limits

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

Machining danger

Powder generated during machining of magnets is combustible. Do not drill into magnets without proper cooling and knowledge.

Compass and GPS

Navigation devices and smartphones are extremely sensitive to magnetic fields. Direct contact with a strong magnet can permanently damage the internal compass in your phone.

Crushing risk

Large magnets can break fingers in a fraction of a second. Never put your hand betwixt two strong magnets.

Conscious usage

Use magnets consciously. Their powerful strength can surprise even professionals. Be vigilant and do not underestimate their force.

Medical implants

For implant holders: Strong magnetic fields affect electronics. Maintain minimum 30 cm distance or request help to handle the magnets.

Swallowing risk

Neodymium magnets are not toys. Accidental ingestion of several magnets may result in them pinching intestinal walls, which poses a direct threat to life and necessitates immediate surgery.

Nickel allergy

Medical facts indicate that nickel (standard magnet coating) is a common allergen. For allergy sufferers, prevent direct skin contact and choose encased magnets.

Magnetic media

Do not bring magnets near a purse, laptop, or screen. The magnetic field can destroy these devices and erase data from cards.

Safety First! Need more info? Check our post: Are neodymium magnets dangerous?
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98