Neodymium magnets: power you're looking for

Want to buy really powerful magnets? We offer rich assortment of disc, cylindrical and ring magnets. Best choice for home use, garage and model making. Check our offer available immediately.

check magnet catalog

Magnet fishing: strong F200/F400 sets

Start your adventure involving underwater treasure hunting! Our specialized grips (F200, F400) provide safety guarantee and immense power. Solid, corrosion-resistant housing and reinforced ropes will perform in challenging water conditions.

find your water magnet

Professional threaded grips

Professional solutions for fixing non-invasive. Threaded mounts (external or internal) guarantee instant organization of work on production halls. Perfect for installing lighting, sensors and ads.

check technical specs

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

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

MW 12.5x2 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010014

GTIN/EAN: 5906301810131

5.00

Diameter Ø

12.5 mm [±0,1 mm]

Height

2 mm [±0,1 mm]

Weight

1.84 g

Magnetization Direction

↑ axial

Load capacity

1.42 kg / 13.89 N

Magnetic Induction

188.88 mT / 1889 Gs

Coating

[NiCuNi] Nickel

0.935 with VAT / pcs + price for transport

0.760 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs
0.760 ZŁ
0.935 ZŁ
price from 768 pcs
0.684 ZŁ
0.841 ZŁ
price from 1536 pcs
0.669 ZŁ
0.823 ZŁ
Need help making a decision?

Call us now +48 22 499 98 98 otherwise get in touch via request form through our site.
Weight as well as shape of magnetic components can be reviewed on our our magnetic calculator.

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

Product card - MW 12.5x2 / N38 - cylindrical magnet

Specification / characteristics - MW 12.5x2 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010014
GTIN/EAN 5906301810131
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 12.5 mm [±0,1 mm]
Height 2 mm [±0,1 mm]
Weight 1.84 g
Magnetization Direction ↑ axial
Load capacity ~ ? 1.42 kg / 13.89 N
Magnetic Induction ~ ? 188.88 mT / 1889 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 12.5x2 / 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

Technical analysis of the magnet - report

These values represent the outcome of a physical calculation. Results rely on models for the class Nd2Fe14B. Actual performance may deviate from the simulation results. Use these data as a reference point for designers.

Table 1: Static pull force (pull vs distance) - power drop
MW 12.5x2 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 1888 Gs
188.8 mT
1.42 kg / 3.13 pounds
1420.0 g / 13.9 N
weak grip
1 mm 1703 Gs
170.3 mT
1.16 kg / 2.55 pounds
1155.6 g / 11.3 N
weak grip
2 mm 1453 Gs
145.3 mT
0.84 kg / 1.85 pounds
840.3 g / 8.2 N
weak grip
3 mm 1190 Gs
119.0 mT
0.56 kg / 1.24 pounds
564.1 g / 5.5 N
weak grip
5 mm 752 Gs
75.2 mT
0.23 kg / 0.50 pounds
225.0 g / 2.2 N
weak grip
10 mm 241 Gs
24.1 mT
0.02 kg / 0.05 pounds
23.2 g / 0.2 N
weak grip
15 mm 96 Gs
9.6 mT
0.00 kg / 0.01 pounds
3.7 g / 0.0 N
weak grip
20 mm 46 Gs
4.6 mT
0.00 kg / 0.00 pounds
0.9 g / 0.0 N
weak grip
30 mm 15 Gs
1.5 mT
0.00 kg / 0.00 pounds
0.1 g / 0.0 N
weak grip
50 mm 4 Gs
0.4 mT
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
weak grip

Table 2: Slippage force (wall)
MW 12.5x2 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.28 kg / 0.63 pounds
284.0 g / 2.8 N
1 mm Stal (~0.2) 0.23 kg / 0.51 pounds
232.0 g / 2.3 N
2 mm Stal (~0.2) 0.17 kg / 0.37 pounds
168.0 g / 1.6 N
3 mm Stal (~0.2) 0.11 kg / 0.25 pounds
112.0 g / 1.1 N
5 mm Stal (~0.2) 0.05 kg / 0.10 pounds
46.0 g / 0.5 N
10 mm Stal (~0.2) 0.00 kg / 0.01 pounds
4.0 g / 0.0 N
15 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
20 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
30 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
50 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MW 12.5x2 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.43 kg / 0.94 pounds
426.0 g / 4.2 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.28 kg / 0.63 pounds
284.0 g / 2.8 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.14 kg / 0.31 pounds
142.0 g / 1.4 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
0.71 kg / 1.57 pounds
710.0 g / 7.0 N

Table 4: Steel thickness (saturation) - sheet metal selection
MW 12.5x2 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
0.14 kg / 0.31 pounds
142.0 g / 1.4 N
1 mm
25%
0.36 kg / 0.78 pounds
355.0 g / 3.5 N
2 mm
50%
0.71 kg / 1.57 pounds
710.0 g / 7.0 N
3 mm
75%
1.07 kg / 2.35 pounds
1065.0 g / 10.4 N
5 mm
100%
1.42 kg / 3.13 pounds
1420.0 g / 13.9 N
10 mm
100%
1.42 kg / 3.13 pounds
1420.0 g / 13.9 N
11 mm
100%
1.42 kg / 3.13 pounds
1420.0 g / 13.9 N
12 mm
100%
1.42 kg / 3.13 pounds
1420.0 g / 13.9 N

Table 5: Working in heat (material behavior) - power drop
MW 12.5x2 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 1.42 kg / 3.13 pounds
1420.0 g / 13.9 N
OK
40 °C -2.2% 1.39 kg / 3.06 pounds
1388.8 g / 13.6 N
OK
60 °C -4.4% 1.36 kg / 2.99 pounds
1357.5 g / 13.3 N
80 °C -6.6% 1.33 kg / 2.92 pounds
1326.3 g / 13.0 N
100 °C -28.8% 1.01 kg / 2.23 pounds
1011.0 g / 9.9 N

Table 6: Two magnets (repulsion) - field collision
MW 12.5x2 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 2.70 kg / 5.95 pounds
3 338 Gs
0.40 kg / 0.89 pounds
405 g / 4.0 N
N/A
1 mm 2.47 kg / 5.45 pounds
3 616 Gs
0.37 kg / 0.82 pounds
371 g / 3.6 N
2.23 kg / 4.91 pounds
~0 Gs
2 mm 2.20 kg / 4.84 pounds
3 407 Gs
0.33 kg / 0.73 pounds
329 g / 3.2 N
1.98 kg / 4.36 pounds
~0 Gs
3 mm 1.89 kg / 4.18 pounds
3 165 Gs
0.28 kg / 0.63 pounds
284 g / 2.8 N
1.71 kg / 3.76 pounds
~0 Gs
5 mm 1.32 kg / 2.91 pounds
2 640 Gs
0.20 kg / 0.44 pounds
198 g / 1.9 N
1.19 kg / 2.62 pounds
~0 Gs
10 mm 0.43 kg / 0.94 pounds
1 503 Gs
0.06 kg / 0.14 pounds
64 g / 0.6 N
0.38 kg / 0.85 pounds
~0 Gs
20 mm 0.04 kg / 0.10 pounds
483 Gs
0.01 kg / 0.01 pounds
7 g / 0.1 N
0.04 kg / 0.09 pounds
~0 Gs
50 mm 0.00 kg / 0.00 pounds
51 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
0.00 kg / 0.00 pounds
~0 Gs
60 mm 0.00 kg / 0.00 pounds
31 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
0.00 kg / 0.00 pounds
~0 Gs
70 mm 0.00 kg / 0.00 pounds
20 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
0.00 kg / 0.00 pounds
~0 Gs
80 mm 0.00 kg / 0.00 pounds
14 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
0.00 kg / 0.00 pounds
~0 Gs
90 mm 0.00 kg / 0.00 pounds
10 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
0.00 kg / 0.00 pounds
~0 Gs
100 mm 0.00 kg / 0.00 pounds
7 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
0.00 kg / 0.00 pounds
~0 Gs

Table 7: Protective zones (implants) - warnings
MW 12.5x2 / 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
Timepiece 20 Gs (2.0 mT) 3.0 cm
Phone / Smartphone 40 Gs (4.0 mT) 2.5 cm
Remote 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: Dynamics (cracking risk) - warning
MW 12.5x2 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 28.30 km/h
(7.86 m/s)
0.06 J
30 mm 48.53 km/h
(13.48 m/s)
0.17 J
50 mm 62.65 km/h
(17.40 m/s)
0.28 J
100 mm 88.60 km/h
(24.61 m/s)
0.56 J

Table 9: Coating parameters (durability)
MW 12.5x2 / 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 12.5x2 / N38

Parameter Value SI Unit / Description
Magnetic Flux 2 810 Mx 28.1 µWb
Pc Coefficient 0.24 Low (Flat)

Table 11: Hydrostatics and buoyancy
MW 12.5x2 / N38

Environment Effective steel pull Effect
Air (land) 1.42 kg Standard
Water (riverbed) 1.63 kg
(+0.21 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. Vertical hold

*Caution: On a vertical surface, the magnet retains merely a fraction of its nominal pull.

2. Steel thickness impact

*Thin metal sheet (e.g. 0.5mm PC case) severely weakens 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) = 0.24

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 specification and ecology
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%
Sustainability
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: 010014-2026
Quick Unit Converter
Force (pull)

Field Strength

Other proposals

This product is a very strong cylinder magnet, composed of durable NdFeB material, which, with dimensions of Ø12.5x2 mm, guarantees maximum efficiency. This specific item is characterized by an accuracy of ±0.1mm and industrial build quality, making it an ideal solution for professional engineers and designers. As a magnetic rod with significant force (approx. 1.42 kg), this product is available off-the-shelf from our European logistics center, ensuring lightning-fast order fulfillment. Additionally, its Ni-Cu-Ni coating effectively protects it against corrosion in standard operating conditions, guaranteeing an aesthetic appearance and durability for years.
This model is perfect for building electric motors, advanced sensors, and efficient magnetic separators, where maximum induction on a small surface counts. Thanks to the high power of 13.89 N with a weight of only 1.84 g, this cylindrical magnet is indispensable in electronics and wherever every gram matters.
Due to the delicate structure of the ceramic sinter, we absolutely advise against force-fitting (so-called press-fit), as this risks immediate cracking of this professional component. To ensure stability in automation, anaerobic resins are used, which do not react with the nickel coating and fill the gap, guaranteeing durability of the connection.
Grade N38 is the most frequently chosen standard for industrial neodymium magnets, offering an optimal price-to-power ratio and high resistance to demagnetization. If you need the strongest magnets in the same volume (Ø12.5x2), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our store.
This model is characterized by dimensions Ø12.5x2 mm, which, at a weight of 1.84 g, makes it an element with impressive magnetic energy density. The key parameter here is the holding force amounting to approximately 1.42 kg (force ~13.89 N), which, with such compact dimensions, proves the high power of the NdFeB material. The product has a [NiCuNi] coating, which secures it 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 12.5 mm. Such an arrangement is standard when connecting magnets in stacks (e.g., in filters) or when mounting in sockets at the bottom of a hole. On request, we can also produce versions magnetized diametrically if your project requires it.

Pros and cons of neodymium magnets.

Benefits

Apart from their strong holding force, neodymium magnets have these key benefits:
  • Their strength is durable, and after approximately 10 years it drops only by ~1% (theoretically),
  • They are extremely resistant to demagnetization induced by external field influence,
  • By covering with a lustrous coating of gold, the element has an proper look,
  • Magnetic induction on the working part of the magnet turns out to be exceptional,
  • Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the shape) even at high temperatures reaching 230°C or more...
  • Thanks to the ability of precise molding and adaptation to unique requirements, neodymium magnets can be created in a wide range of geometric configurations, which increases their versatility,
  • Versatile presence in modern industrial fields – they are utilized in hard drives, electric drive systems, advanced medical instruments, as well as other advanced devices.
  • Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Weaknesses

Disadvantages of neodymium magnets:
  • To avoid cracks under impact, we suggest using special steel housings. Such a solution protects the magnet and simultaneously improves its durability.
  • We warn that neodymium magnets can lose their power at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 230°C.
  • Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material resistant to moisture, when using outdoors
  • We suggest cover - magnetic mechanism, due to difficulties in creating nuts inside the magnet and complex shapes.
  • Health risk related to microscopic parts of magnets are risky, when accidentally swallowed, which becomes key in the context of child safety. Additionally, tiny parts of these devices can disrupt the diagnostic process medical when they are in the body.
  • Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Pull force analysis

Maximum lifting capacity of the magnetwhat affects it?

The specified lifting capacity refers to the maximum value, obtained under optimal environment, specifically:
  • with the application of a yoke made of special test steel, guaranteeing maximum field concentration
  • whose transverse dimension is min. 10 mm
  • with an polished touching surface
  • without any insulating layer between the magnet and steel
  • for force applied at a right angle (in the magnet axis)
  • at temperature room level

Impact of factors on magnetic holding capacity in practice

It is worth knowing that the application force may be lower influenced by the following factors, in order of importance:
  • Clearance – existence of foreign body (rust, dirt, gap) acts as an insulator, which lowers capacity rapidly (even by 50% at 0.5 mm).
  • Direction of force – maximum parameter is reached only during perpendicular pulling. The shear force of the magnet along the surface is typically several times smaller (approx. 1/5 of the lifting capacity).
  • Metal thickness – the thinner the sheet, the weaker the hold. Magnetic flux passes through the material instead of converting into lifting capacity.
  • Steel type – low-carbon steel attracts best. Alloy steels reduce magnetic permeability and holding force.
  • Surface finish – ideal contact is possible only on smooth steel. Rough texture reduce the real contact area, reducing force.
  • Operating temperature – neodymium magnets have a negative temperature coefficient. At higher temperatures they lose power, and in frost gain strength (up to a certain limit).

Holding force was measured on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, however under parallel forces the holding force is lower. In addition, even a slight gap between the magnet and the plate reduces the lifting capacity.

H&S for magnets
Magnet fragility

Despite metallic appearance, neodymium is brittle and cannot withstand shocks. Do not hit, as the magnet may crumble into hazardous fragments.

Bodily injuries

Mind your fingers. Two large magnets will snap together instantly with a force of several hundred kilograms, crushing anything in their path. Be careful!

Combustion hazard

Dust generated during grinding of magnets is self-igniting. Do not drill into magnets unless you are an expert.

Sensitization to coating

Medical facts indicate that nickel (standard magnet coating) is a common allergen. For allergy sufferers, refrain from touching magnets with bare hands or choose versions in plastic housing.

ICD Warning

Patients with a ICD should keep an safe separation from magnets. The magnetic field can interfere with the operation of the life-saving device.

Electronic hazard

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

Adults only

Absolutely keep magnets out of reach of children. Ingestion danger is high, and the effects of magnets connecting inside the body are life-threatening.

Precision electronics

Navigation devices and smartphones are extremely susceptible to magnetic fields. Direct contact with a powerful NdFeB magnet can permanently damage the sensors in your phone.

Operating temperature

Control the heat. Exposing the magnet to high heat will permanently weaken its magnetic structure and pulling force.

Handling guide

Handle with care. Rare earth magnets act from a distance and connect with massive power, often faster than you can react.

Attention! Looking for details? Check our post: Why are neodymium magnets dangerous?
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98