MW 6x2 / N38 - cylindrical magnet
cylindrical magnet
Catalog no 010092
GTIN/EAN: 5906301810919
Diameter Ø
6 mm [±0,1 mm]
Height
2 mm [±0,1 mm]
Weight
0.42 g
Magnetization Direction
↑ axial
Load capacity
0.86 kg / 8.43 N
Magnetic Induction
343.37 mT / 3434 Gs
Coating
[NiCuNi] Nickel
0.246 ZŁ with VAT / pcs + price for transport
0.200 ZŁ net + 23% VAT / pcs
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Detailed specification - MW 6x2 / N38 - cylindrical magnet
Specification / characteristics - MW 6x2 / N38 - cylindrical magnet
| properties | values |
|---|---|
| Cat. no. | 010092 |
| GTIN/EAN | 5906301810919 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 6 mm [±0,1 mm] |
| Height | 2 mm [±0,1 mm] |
| Weight | 0.42 g |
| Magnetization Direction | ↑ axial |
| Load capacity ~ ? | 0.86 kg / 8.43 N |
| Magnetic Induction ~ ? | 343.37 mT / 3434 Gs |
| Coating | [NiCuNi] Nickel |
| Manufacturing Tolerance | ±0.1 mm |
Magnetic properties of material N38
| 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
| 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 product - technical parameters
The following data constitute the direct effect of a engineering analysis. Values rely on models for the class Nd2Fe14B. Operational parameters may differ. Please consider these calculations as a reference point when designing systems.
Table 1: Static force (force vs distance) - power drop
MW 6x2 / N38
| Distance (mm) | Induction (Gauss) / mT | Pull Force (kg/lbs/g/N) | Risk Status |
|---|---|---|---|
| 0 mm |
3430 Gs
343.0 mT
|
0.86 kg / 1.90 lbs
860.0 g / 8.4 N
|
weak grip |
| 1 mm |
2423 Gs
242.3 mT
|
0.43 kg / 0.95 lbs
429.2 g / 4.2 N
|
weak grip |
| 2 mm |
1521 Gs
152.1 mT
|
0.17 kg / 0.37 lbs
169.0 g / 1.7 N
|
weak grip |
| 3 mm |
932 Gs
93.2 mT
|
0.06 kg / 0.14 lbs
63.5 g / 0.6 N
|
weak grip |
| 5 mm |
382 Gs
38.2 mT
|
0.01 kg / 0.02 lbs
10.7 g / 0.1 N
|
weak grip |
| 10 mm |
76 Gs
7.6 mT
|
0.00 kg / 0.00 lbs
0.4 g / 0.0 N
|
weak grip |
| 15 mm |
26 Gs
2.6 mT
|
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
|
weak grip |
| 20 mm |
12 Gs
1.2 mT
|
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
|
weak grip |
| 30 mm |
4 Gs
0.4 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: Shear hold (vertical surface)
MW 6x2 / N38
| Distance (mm) | Friction coefficient | Pull Force (kg/lbs/g/N) |
|---|---|---|
| 0 mm | Stal (~0.2) |
0.17 kg / 0.38 lbs
172.0 g / 1.7 N
|
| 1 mm | Stal (~0.2) |
0.09 kg / 0.19 lbs
86.0 g / 0.8 N
|
| 2 mm | Stal (~0.2) |
0.03 kg / 0.07 lbs
34.0 g / 0.3 N
|
| 3 mm | Stal (~0.2) |
0.01 kg / 0.03 lbs
12.0 g / 0.1 N
|
| 5 mm | Stal (~0.2) |
0.00 kg / 0.00 lbs
2.0 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: Vertical assembly (shearing) - vertical pull
MW 6x2 / N38
| Surface type | Friction coefficient / % Mocy | Max load (kg/lbs/g/N) |
|---|---|---|
| Raw steel |
µ = 0.3
30% Nominalnej Siły
|
0.26 kg / 0.57 lbs
258.0 g / 2.5 N
|
| Painted steel (standard) |
µ = 0.2
20% Nominalnej Siły
|
0.17 kg / 0.38 lbs
172.0 g / 1.7 N
|
| Oily/slippery steel |
µ = 0.1
10% Nominalnej Siły
|
0.09 kg / 0.19 lbs
86.0 g / 0.8 N
|
| Magnet with anti-slip rubber |
µ = 0.5
50% Nominalnej Siły
|
0.43 kg / 0.95 lbs
430.0 g / 4.2 N
|
Table 4: Material efficiency (substrate influence) - sheet metal selection
MW 6x2 / N38
| Steel thickness (mm) | % power | Real pull force (kg/lbs/g/N) |
|---|---|---|
| 0.5 mm |
|
0.09 kg / 0.19 lbs
86.0 g / 0.8 N
|
| 1 mm |
|
0.22 kg / 0.47 lbs
215.0 g / 2.1 N
|
| 2 mm |
|
0.43 kg / 0.95 lbs
430.0 g / 4.2 N
|
| 3 mm |
|
0.65 kg / 1.42 lbs
645.0 g / 6.3 N
|
| 5 mm |
|
0.86 kg / 1.90 lbs
860.0 g / 8.4 N
|
| 10 mm |
|
0.86 kg / 1.90 lbs
860.0 g / 8.4 N
|
| 11 mm |
|
0.86 kg / 1.90 lbs
860.0 g / 8.4 N
|
| 12 mm |
|
0.86 kg / 1.90 lbs
860.0 g / 8.4 N
|
Table 5: Thermal resistance (material behavior) - power drop
MW 6x2 / N38
| Ambient temp. (°C) | Power loss | Remaining pull (kg/lbs/g/N) | Status |
|---|---|---|---|
| 20 °C | 0.0% |
0.86 kg / 1.90 lbs
860.0 g / 8.4 N
|
OK |
| 40 °C | -2.2% |
0.84 kg / 1.85 lbs
841.1 g / 8.3 N
|
OK |
| 60 °C | -4.4% |
0.82 kg / 1.81 lbs
822.2 g / 8.1 N
|
|
| 80 °C | -6.6% |
0.80 kg / 1.77 lbs
803.2 g / 7.9 N
|
|
| 100 °C | -28.8% |
0.61 kg / 1.35 lbs
612.3 g / 6.0 N
|
Table 6: Magnet-Magnet interaction (repulsion) - forces in the system
MW 6x2 / N38
| Gap (mm) | Attraction (kg/lbs) (N-S) | Shear Force (kg/lbs/g/N) | Repulsion (kg/lbs) (N-N) |
|---|---|---|---|
| 0 mm |
2.05 kg / 4.52 lbs
4 944 Gs
|
0.31 kg / 0.68 lbs
308 g / 3.0 N
|
N/A |
| 1 mm |
1.52 kg / 3.34 lbs
5 900 Gs
|
0.23 kg / 0.50 lbs
228 g / 2.2 N
|
1.37 kg / 3.01 lbs
~0 Gs
|
| 2 mm |
1.02 kg / 2.26 lbs
4 847 Gs
|
0.15 kg / 0.34 lbs
154 g / 1.5 N
|
0.92 kg / 2.03 lbs
~0 Gs
|
| 3 mm |
0.65 kg / 1.44 lbs
3 869 Gs
|
0.10 kg / 0.22 lbs
98 g / 1.0 N
|
0.59 kg / 1.29 lbs
~0 Gs
|
| 5 mm |
0.25 kg / 0.54 lbs
2 379 Gs
|
0.04 kg / 0.08 lbs
37 g / 0.4 N
|
0.22 kg / 0.49 lbs
~0 Gs
|
| 10 mm |
0.03 kg / 0.06 lbs
764 Gs
|
0.00 kg / 0.01 lbs
4 g / 0.0 N
|
0.02 kg / 0.05 lbs
~0 Gs
|
| 20 mm |
0.00 kg / 0.00 lbs
153 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
12 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
7 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
5 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
3 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
2 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: Hazards (implants) - precautionary measures
MW 6x2 / N38
| Object / Device | Limit (Gauss) / mT | Safe distance |
|---|---|---|
| Pacemaker | 5 Gs (0.5 mT) | 3.0 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 |
| Remote | 50 Gs (5.0 mT) | 1.5 cm |
| Payment card | 400 Gs (40.0 mT) | 0.5 cm |
| HDD hard drive | 600 Gs (60.0 mT) | 0.5 cm |
Table 8: Impact energy (kinetic energy) - collision effects
MW 6x2 / N38
| Start from (mm) | Speed (km/h) | Energy (J) | Predicted outcome |
|---|---|---|---|
| 10 mm |
45.65 km/h
(12.68 m/s)
|
0.03 J | |
| 30 mm |
79.04 km/h
(21.96 m/s)
|
0.10 J | |
| 50 mm |
102.04 km/h
(28.35 m/s)
|
0.17 J | |
| 100 mm |
144.31 km/h
(40.09 m/s)
|
0.34 J |
Table 9: Coating parameters (durability)
MW 6x2 / 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 (Pc)
MW 6x2 / N38
| Parameter | Value | SI Unit / Description |
|---|---|---|
| Magnetic Flux | 1 029 Mx | 10.3 µWb |
| Pc Coefficient | 0.44 | Low (Flat) |
Table 11: Underwater work (magnet fishing)
MW 6x2 / N38
| Environment | Effective steel pull | Effect |
|---|---|---|
| Air (land) | 0.86 kg | Standard |
| Water (riverbed) |
0.98 kg
(+0.12 kg buoyancy gain)
|
+14.5% |
1. Wall mount (shear)
*Caution: On a vertical surface, the magnet holds only ~20% of its perpendicular strength.
2. Steel saturation
*Thin metal sheet (e.g. 0.5mm PC case) drastically weakens the holding force.
3. Temperature resistance
*For standard magnets, the safety limit is 80°C.
4. Demagnetization curve and operating point (B-H)
chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.44
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.
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 proposals
Strengths as well as weaknesses of Nd2Fe14B magnets.
Benefits
- They have constant strength, and over around 10 years their attraction force decreases symbolically – ~1% (in testing),
- They have excellent resistance to magnetic field loss as a result of external magnetic sources,
- The use of an elegant finish of noble metals (nickel, gold, silver) causes the element to present itself better,
- Neodymium magnets achieve maximum magnetic induction on a their surface, which allows for strong attraction,
- Neodymium magnets are characterized by very high magnetic induction on the magnet surface and are able to act (depending on the form) even at a temperature of 230°C or more...
- In view of the ability of accurate shaping and adaptation to individualized projects, neodymium magnets can be manufactured in a broad palette of shapes and sizes, which amplifies use scope,
- Universal use in advanced technology sectors – they are utilized in HDD drives, motor assemblies, advanced medical instruments, as well as technologically advanced constructions.
- Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in small dimensions, which allows their use in compact constructions
Weaknesses
- Brittleness is one of their disadvantages. Upon intense impact they can fracture. We advise keeping them in a steel housing, which not only protects them against impacts but also raises their durability
- When exposed to high temperature, neodymium magnets experience a drop in force. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size and 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 immune to moisture, in case of application outdoors
- Due to limitations in realizing nuts and complicated forms in magnets, we recommend using a housing - magnetic holder.
- Potential hazard to health – tiny shards of magnets pose a threat, if swallowed, which becomes key in the context of child safety. Additionally, small elements of these devices are able to disrupt the diagnostic process medical when they are in the body.
- Due to complex production process, their price is higher than average,
Holding force characteristics
Breakaway strength of the magnet in ideal conditions – what it depends on?
- using a sheet made of mild steel, serving as a ideal flux conductor
- possessing a massiveness of at least 10 mm to ensure full flux closure
- with an ground touching surface
- under conditions of gap-free contact (surface-to-surface)
- during detachment in a direction perpendicular to the plane
- in stable room temperature
Key elements affecting lifting force
- Distance – existence of any layer (paint, tape, air) interrupts the magnetic circuit, which lowers power rapidly (even by 50% at 0.5 mm).
- Pull-off angle – remember that the magnet holds strongest perpendicularly. Under shear forces, the holding force drops drastically, often to levels of 20-30% of the maximum value.
- Element thickness – for full efficiency, the steel must be adequately massive. Paper-thin metal limits the attraction force (the magnet "punches through" it).
- Steel grade – the best choice is pure iron steel. Stainless steels may generate lower lifting capacity.
- Surface condition – ground elements ensure maximum contact, which increases force. Rough surfaces reduce efficiency.
- Temperature – heating the magnet results in weakening of force. It is worth remembering the maximum operating temperature for a given model.
Lifting capacity was determined by applying a steel plate with a smooth surface of suitable thickness (min. 20 mm), under perpendicular pulling force, however under shearing force the load capacity is reduced by as much as 75%. Additionally, even a minimal clearance between the magnet’s surface and the plate lowers the holding force.
Warnings
Pacemakers
Medical warning: Strong magnets can turn off heart devices and defibrillators. Stay away if you have electronic implants.
Respect the power
Handle magnets with awareness. Their huge power can surprise even experienced users. Be vigilant and respect their force.
Heat warning
Watch the temperature. Heating the magnet above 80 degrees Celsius will destroy its magnetic structure and strength.
Protective goggles
Despite metallic appearance, the material is delicate and cannot withstand shocks. Avoid impacts, as the magnet may crumble into hazardous fragments.
GPS and phone interference
A powerful magnetic field negatively affects the functioning of magnetometers in phones and GPS navigation. Maintain magnets near a smartphone to avoid breaking the sensors.
This is not a toy
Adult use only. Small elements pose a choking risk, causing intestinal necrosis. Keep away from kids and pets.
Flammability
Combustion risk: Neodymium dust is highly flammable. Do not process magnets in home conditions as this risks ignition.
Hand protection
Big blocks can break fingers in a fraction of a second. Under no circumstances place your hand between two attracting surfaces.
Protect data
Intense magnetic fields can destroy records on payment cards, HDDs, and other magnetic media. Stay away of at least 10 cm.
Nickel coating and allergies
Nickel alert: The Ni-Cu-Ni coating contains nickel. If skin irritation appears, cease handling magnets and wear gloves.
