MW 12x1 zestaw 1400 szt. / N38 - cylindrical magnet
cylindrical magnet
Catalog no 010560
GTIN/EAN: 5906301815525
- Diameter Ø
- 12 mm [±0,1 mm]
- Height
- 1 mm [±0,1 mm]
- Weight
- 1190 g
- Magnetization Direction
- ↑ axial
- Coating
- [NiCuNi] Nickel
How we measure these parameters — certificates and measurements
591.87 zł net / pcs
728.00 zł with VAT (23% VAT) / pcs
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Need more?Frequently asked questions
Where can I buy strong cylindrical neodymium magnets?
Can a small cylindrical magnet provide a strong grip for precise workshop work?
Which cylindrical magnet can work at a higher temperature?
Engineering report for this magnet
Full PDF analysis: pull and shear force, effect of distance, temperature and plate thickness, safety distances and the demagnetization curve.
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Detailed specification - MW 12x1 zestaw 1400 szt. / N38 - cylindrical magnet
Specification / characteristics - MW 12x1 zestaw 1400 szt. / N38 - cylindrical magnet
| properties | values |
|---|---|
| Cat. no. | 010560 |
| GTIN/EAN | 5906301815525 |
| Distributor | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 12 mm [±0,1 mm] |
| Height | 1 mm [±0,1 mm] |
| Weight | 1190 g |
| Magnetization Direction | ↑ axial |
| Load capacity ~ ? | 0.42 kg / 4.15 N |
| Magnetic Induction ~ ? | 101.90 mT / 1019 Gs |
| Coating | [NiCuNi] Nickel |
| Manufacturing Tolerance | ±0.1 mm |
Magnetic properties of material N38
| properties | values | units |
|---|---|---|
| Remanence Br ? | 12.2-12.6 | kGs |
| Remanence Br ? | 1220-1260 | mT |
| Coercivity bHc ? | 10.8-11.5 | kOe |
| Coercivity bHc ? | 860-915 | kA/m |
| Intrinsic coercivity iHc | ≥ 12 | kOe |
| Intrinsic coercivity iHc | ≥ 955 | kA/m |
| Energy product BHmax ? | 36-38 | BH max MGOe |
| Energy product BHmax ? | 287-303 | BH max KJ/m |
| Maximum working temperature ? | ≤ 80 | °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 | 310 | °C |
| Curie Temperature TF | 590 | °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 magnet - data
These values are the result of a mathematical simulation. Results are based on models for the material Nd2Fe14B. Real-world performance may deviate from the simulation results. Please consider these data as a preliminary roadmap for designers.
Table 1: Static pull force (force vs gap) - power drop
MW 12x1 zestaw 1400 szt. / N38
| Distance (mm) | Induction (Gauss) / mT | Pull Force (kg/lbs/g/N) | Risk Status |
|---|---|---|---|
| 0 mm |
1019 Gs
101.9 mT
|
0.42 kg / 0.93 pounds
420.0 g / 4.1 N
|
low risk |
| 1 mm |
941 Gs
94.1 mT
|
0.36 kg / 0.79 pounds
358.5 g / 3.5 N
|
low risk |
| 2 mm |
812 Gs
81.2 mT
|
0.27 kg / 0.59 pounds
266.8 g / 2.6 N
|
low risk |
| 3 mm |
666 Gs
66.6 mT
|
0.18 kg / 0.40 pounds
179.7 g / 1.8 N
|
low risk |
| 5 mm |
415 Gs
41.5 mT
|
0.07 kg / 0.15 pounds
69.7 g / 0.7 N
|
low risk |
| 10 mm |
126 Gs
12.6 mT
|
0.01 kg / 0.01 pounds
6.5 g / 0.1 N
|
low risk |
| 15 mm |
49 Gs
4.9 mT
|
0.00 kg / 0.00 pounds
1.0 g / 0.0 N
|
low risk |
| 20 mm |
23 Gs
2.3 mT
|
0.00 kg / 0.00 pounds
0.2 g / 0.0 N
|
low risk |
| 30 mm |
7 Gs
0.7 mT
|
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
low risk |
| 50 mm |
2 Gs
0.2 mT
|
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
low risk |
Table 2: Slippage force (wall)
MW 12x1 zestaw 1400 szt. / N38
| Distance (mm) | Friction coefficient | Pull Force (kg/lbs/g/N) |
|---|---|---|
| 0 mm | Raw steel (µ ≈ 0.2) |
0.08 kg / 0.19 pounds
84.0 g / 0.8 N
|
| 1 mm | Raw steel (µ ≈ 0.2) |
0.07 kg / 0.16 pounds
72.0 g / 0.7 N
|
| 2 mm | Raw steel (µ ≈ 0.2) |
0.05 kg / 0.12 pounds
54.0 g / 0.5 N
|
| 3 mm | Raw steel (µ ≈ 0.2) |
0.04 kg / 0.08 pounds
36.0 g / 0.4 N
|
| 5 mm | Raw steel (µ ≈ 0.2) |
0.01 kg / 0.03 pounds
14.0 g / 0.1 N
|
| 10 mm | Raw steel (µ ≈ 0.2) |
0.00 kg / 0.00 pounds
2.0 g / 0.0 N
|
| 15 mm | Raw steel (µ ≈ 0.2) |
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
| 20 mm | Raw steel (µ ≈ 0.2) |
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
| 30 mm | Raw steel (µ ≈ 0.2) |
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
| 50 mm | Raw steel (µ ≈ 0.2) |
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MW 12x1 zestaw 1400 szt. / N38
| Surface type | Friction coefficient / % | Max load (kg/lbs/g/N) |
|---|---|---|
| Raw steel |
µ = 0.3
30% of nominal force
|
0.13 kg / 0.28 pounds
126.0 g / 1.2 N
|
| Painted steel (standard) |
µ = 0.2
20% of nominal force
|
0.08 kg / 0.19 pounds
84.0 g / 0.8 N
|
| Oily/slippery steel |
µ = 0.1
10% of nominal force
|
0.04 kg / 0.09 pounds
42.0 g / 0.4 N
|
| Magnet with anti-slip rubber |
µ = 0.5
50% of nominal force
|
0.21 kg / 0.46 pounds
210.0 g / 2.1 N
|
Table 4: Material efficiency (saturation) - power losses
MW 12x1 zestaw 1400 szt. / N38
| Steel thickness (mm) | % power | Real pull force (kg/lbs/g/N) |
|---|---|---|
| 0.5 mm |
|
0.04 kg / 0.09 pounds
42.0 g / 0.4 N
|
| 1 mm |
|
0.11 kg / 0.23 pounds
105.0 g / 1.0 N
|
| 2 mm |
|
0.21 kg / 0.46 pounds
210.0 g / 2.1 N
|
| 3 mm |
|
0.32 kg / 0.69 pounds
315.0 g / 3.1 N
|
| 5 mm |
|
0.42 kg / 0.93 pounds
420.0 g / 4.1 N
|
| 10 mm |
|
0.42 kg / 0.93 pounds
420.0 g / 4.1 N
|
| 11 mm |
|
0.42 kg / 0.93 pounds
420.0 g / 4.1 N
|
| 12 mm |
|
0.42 kg / 0.93 pounds
420.0 g / 4.1 N
|
Table 5: Thermal resistance (stability) - thermal limit
MW 12x1 zestaw 1400 szt. / N38
| Magnet temperature (°C) | Force change relative to 20°C | Remaining pull (kg/lbs/g/N) | Status |
|---|---|---|---|
| 20 °C | 0.0% |
0.42 kg / 0.93 pounds
420.0 g / 4.1 N
|
Estimate |
| 40 °C | -4.4% |
0.40 kg / 0.89 pounds
401.7 g / 3.9 N
|
Estimate |
| 60 °C | -8.6% |
0.38 kg / 0.85 pounds
383.9 g / 3.8 N
|
Estimate |
| 80 °C | -12.8% |
0.37 kg / 0.81 pounds
366.4 g / 3.6 N
|
Material limit |
| 100 °C | — | — | Out of range — no model |
Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MW 12x1 zestaw 1400 szt. / N38
| Gap (mm) | Attraction (kg/lbs) (N-S) | Lateral Force (kg/lbs/g/N) | Repulsion (kg/lbs) (N-N) |
|---|---|---|---|
| 0 mm |
0.72 kg / 1.60 pounds
1 959 Gs
|
0.11 kg / 0.24 pounds
109 g / 1.1 N
|
N/A |
| 1 mm |
0.68 kg / 1.50 pounds
1 978 Gs
|
0.10 kg / 0.23 pounds
102 g / 1.0 N
|
0.61 kg / 1.35 pounds
~0 Gs
|
| 2 mm |
0.62 kg / 1.36 pounds
1 883 Gs
|
0.09 kg / 0.20 pounds
93 g / 0.9 N
|
0.56 kg / 1.23 pounds
~0 Gs
|
| 3 mm |
0.54 kg / 1.19 pounds
1 762 Gs
|
0.08 kg / 0.18 pounds
81 g / 0.8 N
|
0.49 kg / 1.07 pounds
~0 Gs
|
| 5 mm |
0.38 kg / 0.84 pounds
1 479 Gs
|
0.06 kg / 0.13 pounds
57 g / 0.6 N
|
0.34 kg / 0.76 pounds
~0 Gs
|
| 10 mm |
0.12 kg / 0.26 pounds
830 Gs
|
0.02 kg / 0.04 pounds
18 g / 0.2 N
|
0.11 kg / 0.24 pounds
~0 Gs
|
| 20 mm |
0.01 kg / 0.02 pounds
253 Gs
|
0.00 kg / 0.00 pounds
2 g / 0.0 N
|
0.01 kg / 0.02 pounds
~0 Gs
|
| 50 mm |
0.00 kg / 0.00 pounds
25 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
15 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
10 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
7 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
5 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
3 Gs
|
0.00 kg / 0.00 pounds
0 g / 0.0 N
|
0.00 kg / 0.00 pounds
~0 Gs
|
Table 7: Axial field levels — not safety zones
MW 12x1 zestaw 1400 szt. / N38
| Field level (Gs) | mT | Model distance (cm) |
|---|---|---|
| < 5 Gs | < 0.5 mT | 3.5 cm |
| < 10 Gs | < 1.0 mT | 3.0 cm |
| < 20 Gs | < 2.0 mT | 2.5 cm |
| < 40 Gs | < 4.0 mT | 2.0 cm |
| < 50 Gs | < 5.0 mT | 1.5 cm |
| < 400 Gs | < 40.0 mT | 1.0 cm |
| < 600 Gs | < 60.0 mT | 0.5 cm |
Table 8: Collisions (kinetic energy) - warning
MW 12x1 zestaw 1400 szt. / N38
| Start from (mm) | Speed (km/h) | Energy (J) | Predicted outcome |
|---|---|---|---|
| 10 mm |
0.53 km/h
(0.15 m/s)
|
0.01 J | |
| 30 mm |
0.53 km/h
(0.15 m/s)
|
0.01 J | |
| 50 mm |
0.53 km/h
(0.15 m/s)
|
0.01 J | |
| 100 mm |
0.53 km/h
(0.15 m/s)
|
0.01 J |
Table 9: Surface protection spec
MW 12x1 zestaw 1400 szt. / 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 (Pc)
MW 12x1 zestaw 1400 szt. / N38
| Parameter | Value | SI Unit / Description |
|---|---|---|
| Magnetic Flux | 1 564 Mx | 15.6 µWb |
| Pc Coefficient | 0.13 | Low (Flat) |
Table 11: Submerged application
MW 12x1 zestaw 1400 szt. / N38
| Environment | Effective steel pull | Effect |
|---|---|---|
| Air (land) | 0.42 kg | Standard |
| Water (riverbed) |
0.48 kg
(+0.06 kg buoyancy gain)
|
+14.5% |
1. Sliding resistance
*Note: On a vertical wall, the magnet holds only approx. 20-30% of its nominal pull.
2. Efficiency vs thickness
*Thin steel (e.g. 0.5mm PC case) drastically limits the holding force.
3. Heat tolerance
N38: the maximum material working temperature is 80°C. Permitted conditions also depend on the shape and magnetic circuit.
4. Demagnetization curve and operating point (B-H)
chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.13
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.
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% |
Sustainability
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
Other offers
Strengths as well as weaknesses of rare earth magnets.
Advantages
- They retain attractive force for almost 10 years – the loss is just ~1% (in theory),
- They show high resistance to demagnetization induced by external disturbances,
- The use of an shiny finish of noble metals (nickel, gold, silver) causes the element to present itself better,
- The surface of neodymium magnets generates a unique magnetic field – this is a key feature,
- 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...
- Thanks to flexibility in forming and the ability to customize to unusual requirements,
- Key role in advanced technology sectors – they are commonly used in data components, brushless drives, precision medical tools, and other advanced devices.
- Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in compact dimensions, which allows their use in compact constructions
Weaknesses
- To avoid cracks under impact, we suggest using special steel holders. Such a solution protects the magnet and simultaneously improves its durability.
- Do not exceed this material temperature limit: 80°C. Overheating may permanently weaken the magnet.
- Magnets exposed to a humid environment can rust. Therefore while using outdoors, we advise using waterproof magnets made of rubber, plastic or other material resistant to moisture
- We recommend a housing - magnetic mechanism, due to difficulties in producing nuts inside the magnet and complicated forms.
- Health risk related to microscopic parts of magnets pose a threat, if swallowed, which is particularly important in the context of child health protection. Additionally, small elements of these products can complicate diagnosis medical after entering the body.
- Due to expensive raw materials, their price exceeds standard values,
Pull force analysis
Maximum lifting capacity of the magnet – what affects it?
- using a plate made of low-carbon steel, serving as a ideal flux conductor
- possessing a thickness of min. 10 mm to avoid saturation
- characterized by lack of roughness
- under conditions of ideal adhesion (metal-to-metal)
- during pulling in a direction vertical to the plane
- at standard ambient temperature
Impact of factors on magnetic holding capacity in practice
- Space between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by varnish or dirt) drastically reduces the pulling force, often by half at just 0.5 mm.
- Force direction – note that the magnet holds strongest perpendicularly. Under shear forces, the holding force drops drastically, often to levels of 20-30% of the nominal value.
- Base massiveness – too thin steel does not close the flux, causing part of the flux to be wasted into the air.
- Material composition – not every steel attracts identically. Alloy additives worsen the interaction with the magnet.
- Surface finish – full contact is possible only on polished steel. Rough texture reduce the real contact area, weakening the magnet.
- Thermal environment – heating the magnet causes a temporary drop of induction. It is worth remembering the thermal limit for a given model.
Lifting capacity testing was performed on a smooth plate of suitable thickness, under a perpendicular pulling force, whereas under shearing force the load capacity is reduced by as much as 5 times. Moreover, even a small distance between the magnet and the plate lowers the lifting capacity.
Safety rules for work with neodymium magnets
Phone sensors
A strong magnetic field disrupts the operation of magnetometers in phones and GPS navigation. Keep magnets close to a device to avoid breaking the sensors.
Bodily injuries
Protect your hands. Two powerful magnets will snap together immediately with a force of several hundred kilograms, destroying everything in their path. Exercise extreme caution!
Do not overheat magnets
Do not exceed the maximum operating temperature stated in the specifications of the particular product. The limit depends on the material, geometry and operating arrangement; there is no single threshold for all neodymium magnets. Overheating can permanently weaken a magnet.
Nickel allergy
Medical facts indicate that nickel (standard magnet coating) is a strong allergen. If your skin reacts to metals, prevent direct skin contact or select encased magnets.
Respect the power
Before use, read the rules. Sudden snapping can destroy the magnet or hurt your hand. Think ahead.
Dust is flammable
Drilling and cutting of neodymium magnets poses a fire risk. Magnetic powder oxidizes rapidly with oxygen and is hard to extinguish.
Magnetic media
Do not bring magnets near a wallet, laptop, or TV. The magnetism can destroy these devices and wipe information from cards.
Shattering risk
Neodymium magnets are ceramic materials, which means they are prone to chipping. Impact of two magnets will cause them shattering into shards.
ICD Warning
Individuals with a ICD should keep an large gap from magnets. The magnetism can interfere with the functioning of the implant.
Swallowing risk
Always keep magnets out of reach of children. Ingestion danger is significant, and the effects of magnets connecting inside the body are life-threatening.
