MW 6x1 / N38 - cylindrical magnet
cylindrical magnet
Catalog no 010091
GTIN/EAN: 5906301810902
Diameter Ø
6 mm [±0,1 mm]
Height
1 mm [±0,1 mm]
Weight
0.21 g
Magnetization Direction
↑ axial
Load capacity
0.35 kg / 3.41 N
Magnetic Induction
195.87 mT / 1959 Gs
Coating
[NiCuNi] Nickel
0.221 ZŁ with VAT / pcs + price for transport
0.1800 ZŁ net + 23% VAT / pcs
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Technical details - MW 6x1 / N38 - cylindrical magnet
Specification / characteristics - MW 6x1 / N38 - cylindrical magnet
| properties | values |
|---|---|
| Cat. no. | 010091 |
| GTIN/EAN | 5906301810902 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 6 mm [±0,1 mm] |
| Height | 1 mm [±0,1 mm] |
| Weight | 0.21 g |
| Magnetization Direction | ↑ axial |
| Load capacity ~ ? | 0.35 kg / 3.41 N |
| Magnetic Induction ~ ? | 195.87 mT / 1959 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 |
Physical modeling of the assembly - report
Presented information represent the result of a mathematical calculation. Results were calculated on models for the class Nd2Fe14B. Actual performance may differ from theoretical values. Treat these calculations as a preliminary roadmap during assembly planning.
Table 1: Static force (pull vs distance) - power drop
MW 6x1 / N38
| Distance (mm) | Induction (Gauss) / mT | Pull Force (kg/lbs/g/N) | Risk Status |
|---|---|---|---|
| 0 mm |
1958 Gs
195.8 mT
|
0.35 kg / 0.77 lbs
350.0 g / 3.4 N
|
weak grip |
| 1 mm |
1479 Gs
147.9 mT
|
0.20 kg / 0.44 lbs
199.7 g / 2.0 N
|
weak grip |
| 2 mm |
945 Gs
94.5 mT
|
0.08 kg / 0.18 lbs
81.6 g / 0.8 N
|
weak grip |
| 3 mm |
576 Gs
57.6 mT
|
0.03 kg / 0.07 lbs
30.3 g / 0.3 N
|
weak grip |
| 5 mm |
229 Gs
22.9 mT
|
0.00 kg / 0.01 lbs
4.8 g / 0.0 N
|
weak grip |
| 10 mm |
43 Gs
4.3 mT
|
0.00 kg / 0.00 lbs
0.2 g / 0.0 N
|
weak grip |
| 15 mm |
14 Gs
1.4 mT
|
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
|
weak grip |
| 20 mm |
6 Gs
0.6 mT
|
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
|
weak grip |
| 30 mm |
2 Gs
0.2 mT
|
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
|
weak grip |
| 50 mm |
0 Gs
0.0 mT
|
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
|
weak grip |
Table 2: Slippage force (wall)
MW 6x1 / N38
| Distance (mm) | Friction coefficient | Pull Force (kg/lbs/g/N) |
|---|---|---|
| 0 mm | Stal (~0.2) |
0.07 kg / 0.15 lbs
70.0 g / 0.7 N
|
| 1 mm | Stal (~0.2) |
0.04 kg / 0.09 lbs
40.0 g / 0.4 N
|
| 2 mm | Stal (~0.2) |
0.02 kg / 0.04 lbs
16.0 g / 0.2 N
|
| 3 mm | Stal (~0.2) |
0.01 kg / 0.01 lbs
6.0 g / 0.1 N
|
| 5 mm | Stal (~0.2) |
0.00 kg / 0.00 lbs
0.0 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: Wall mounting (sliding) - behavior on slippery surfaces
MW 6x1 / N38
| Surface type | Friction coefficient / % Mocy | Max load (kg/lbs/g/N) |
|---|---|---|
| Raw steel |
µ = 0.3
30% Nominalnej Siły
|
0.11 kg / 0.23 lbs
105.0 g / 1.0 N
|
| Painted steel (standard) |
µ = 0.2
20% Nominalnej Siły
|
0.07 kg / 0.15 lbs
70.0 g / 0.7 N
|
| Oily/slippery steel |
µ = 0.1
10% Nominalnej Siły
|
0.03 kg / 0.08 lbs
35.0 g / 0.3 N
|
| Magnet with anti-slip rubber |
µ = 0.5
50% Nominalnej Siły
|
0.18 kg / 0.39 lbs
175.0 g / 1.7 N
|
Table 4: Material efficiency (substrate influence) - sheet metal selection
MW 6x1 / N38
| Steel thickness (mm) | % power | Real pull force (kg/lbs/g/N) |
|---|---|---|
| 0.5 mm |
|
0.03 kg / 0.08 lbs
35.0 g / 0.3 N
|
| 1 mm |
|
0.09 kg / 0.19 lbs
87.5 g / 0.9 N
|
| 2 mm |
|
0.18 kg / 0.39 lbs
175.0 g / 1.7 N
|
| 3 mm |
|
0.26 kg / 0.58 lbs
262.5 g / 2.6 N
|
| 5 mm |
|
0.35 kg / 0.77 lbs
350.0 g / 3.4 N
|
| 10 mm |
|
0.35 kg / 0.77 lbs
350.0 g / 3.4 N
|
| 11 mm |
|
0.35 kg / 0.77 lbs
350.0 g / 3.4 N
|
| 12 mm |
|
0.35 kg / 0.77 lbs
350.0 g / 3.4 N
|
Table 5: Thermal resistance (material behavior) - resistance threshold
MW 6x1 / N38
| Ambient temp. (°C) | Power loss | Remaining pull (kg/lbs/g/N) | Status |
|---|---|---|---|
| 20 °C | 0.0% |
0.35 kg / 0.77 lbs
350.0 g / 3.4 N
|
OK |
| 40 °C | -2.2% |
0.34 kg / 0.75 lbs
342.3 g / 3.4 N
|
OK |
| 60 °C | -4.4% |
0.33 kg / 0.74 lbs
334.6 g / 3.3 N
|
|
| 80 °C | -6.6% |
0.33 kg / 0.72 lbs
326.9 g / 3.2 N
|
|
| 100 °C | -28.8% |
0.25 kg / 0.55 lbs
249.2 g / 2.4 N
|
Table 6: Magnet-Magnet interaction (repulsion) - field collision
MW 6x1 / N38
| Gap (mm) | Attraction (kg/lbs) (N-S) | Sliding Force (kg/lbs/g/N) | Repulsion (kg/lbs) (N-N) |
|---|---|---|---|
| 0 mm |
0.67 kg / 1.47 lbs
3 430 Gs
|
0.10 kg / 0.22 lbs
100 g / 1.0 N
|
N/A |
| 1 mm |
0.54 kg / 1.18 lbs
3 507 Gs
|
0.08 kg / 0.18 lbs
80 g / 0.8 N
|
0.48 kg / 1.06 lbs
~0 Gs
|
| 2 mm |
0.38 kg / 0.84 lbs
2 957 Gs
|
0.06 kg / 0.13 lbs
57 g / 0.6 N
|
0.34 kg / 0.76 lbs
~0 Gs
|
| 3 mm |
0.25 kg / 0.55 lbs
2 393 Gs
|
0.04 kg / 0.08 lbs
37 g / 0.4 N
|
0.22 kg / 0.50 lbs
~0 Gs
|
| 5 mm |
0.10 kg / 0.21 lbs
1 476 Gs
|
0.01 kg / 0.03 lbs
14 g / 0.1 N
|
0.09 kg / 0.19 lbs
~0 Gs
|
| 10 mm |
0.01 kg / 0.02 lbs
458 Gs
|
0.00 kg / 0.00 lbs
1 g / 0.0 N
|
0.00 kg / 0.00 lbs
~0 Gs
|
| 20 mm |
0.00 kg / 0.00 lbs
86 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
7 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
4 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
2 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
2 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
1 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
1 Gs
|
0.00 kg / 0.00 lbs
0 g / 0.0 N
|
0.00 kg / 0.00 lbs
~0 Gs
|
Table 7: Hazards (electronics) - precautionary measures
MW 6x1 / N38
| Object / Device | Limit (Gauss) / mT | Safe distance |
|---|---|---|
| Pacemaker | 5 Gs (0.5 mT) | 2.5 cm |
| Hearing aid | 10 Gs (1.0 mT) | 2.0 cm |
| Mechanical watch | 20 Gs (2.0 mT) | 1.5 cm |
| Phone / Smartphone | 40 Gs (4.0 mT) | 1.5 cm |
| Remote | 50 Gs (5.0 mT) | 1.0 cm |
| Payment card | 400 Gs (40.0 mT) | 0.5 cm |
| HDD hard drive | 600 Gs (60.0 mT) | 0.5 cm |
Table 8: Dynamics (kinetic energy) - collision effects
MW 6x1 / N38
| Start from (mm) | Speed (km/h) | Energy (J) | Predicted outcome |
|---|---|---|---|
| 10 mm |
41.18 km/h
(11.44 m/s)
|
0.01 J | |
| 30 mm |
71.31 km/h
(19.81 m/s)
|
0.04 J | |
| 50 mm |
92.06 km/h
(25.57 m/s)
|
0.07 J | |
| 100 mm |
130.20 km/h
(36.17 m/s)
|
0.14 J |
Table 9: Corrosion resistance
MW 6x1 / 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 6x1 / N38
| Parameter | Value | SI Unit / Description |
|---|---|---|
| Magnetic Flux | 666 Mx | 6.7 µWb |
| Pc Coefficient | 0.25 | Low (Flat) |
Table 11: Hydrostatics and buoyancy
MW 6x1 / N38
| Environment | Effective steel pull | Effect |
|---|---|---|
| Air (land) | 0.35 kg | Standard |
| Water (riverbed) |
0.40 kg
(+0.05 kg buoyancy gain)
|
+14.5% |
1. Vertical hold
*Note: On a vertical wall, the magnet holds only ~20% of its perpendicular strength.
2. Steel saturation
*Thin steel (e.g. 0.5mm PC case) severely limits the holding force.
3. Heat tolerance
*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) = 0.25
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.
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 |
Other proposals
Pros and cons of Nd2Fe14B magnets.
Pros
- They retain full power for almost 10 years – the loss is just ~1% (based on simulations),
- Magnets effectively protect themselves against demagnetization caused by foreign field sources,
- A magnet with a smooth silver surface looks better,
- Neodymium magnets create maximum magnetic induction on a their surface, which allows for strong attraction,
- Through (appropriate) combination of ingredients, they can achieve high thermal resistance, allowing for action at temperatures reaching 230°C and above...
- Thanks to modularity in constructing and the capacity to adapt to client solutions,
- Wide application in advanced technology sectors – they find application in HDD drives, electric motors, advanced medical instruments, also industrial machines.
- Thanks to efficiency per cm³, small magnets offer high operating force, with minimal size,
Disadvantages
- At strong impacts they can crack, therefore we advise placing them in special holders. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
- NdFeB magnets lose force when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of power (a factor is the shape and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely resistant to heat
- Magnets exposed to a humid environment can corrode. Therefore while using outdoors, we suggest using waterproof magnets made of rubber, plastic or other material resistant to moisture
- We suggest casing - magnetic holder, due to difficulties in producing nuts inside the magnet and complex forms.
- Health risk related to microscopic parts of magnets are risky, if swallowed, which is particularly important in the aspect of protecting the youngest. Additionally, small components of these products are able to be problematic in diagnostics medical when they are in the body.
- With mass production the cost of neodymium magnets can be a barrier,
Holding force characteristics
Optimal lifting capacity of a neodymium magnet – what it depends on?
- with the application of a sheet made of low-carbon steel, guaranteeing maximum field concentration
- with a cross-section of at least 10 mm
- with an ideally smooth touching surface
- without the slightest insulating layer between the magnet and steel
- under axial force direction (90-degree angle)
- in neutral thermal conditions
Determinants of practical lifting force of a magnet
- Air gap (between the magnet and the metal), as even a microscopic clearance (e.g. 0.5 mm) results in a drastic drop in lifting capacity by up to 50% (this also applies to paint, corrosion or dirt).
- Force direction – catalog parameter refers to detachment vertically. When slipping, the magnet exhibits much less (typically approx. 20-30% of nominal force).
- Metal thickness – the thinner the sheet, the weaker the hold. Magnetic flux penetrates through instead of generating force.
- Steel grade – the best choice is high-permeability steel. Cast iron may have worse magnetic properties.
- Surface finish – full contact is obtained only on polished steel. Any scratches and bumps create air cushions, reducing force.
- Thermal environment – temperature increase results in weakening of induction. It is worth remembering the maximum operating temperature for a given model.
Lifting capacity was determined with the use of a polished steel plate of suitable thickness (min. 20 mm), under perpendicular detachment force, however under parallel forces the load capacity is reduced by as much as 5 times. In addition, even a slight gap between the magnet and the plate decreases the load capacity.
H&S for magnets
Flammability
Dust created during grinding of magnets is combustible. Avoid drilling into magnets unless you are an expert.
Do not give to children
Adult use only. Tiny parts can be swallowed, causing severe trauma. Keep out of reach of children and animals.
Bone fractures
Protect your hands. Two powerful magnets will join immediately with a force of several hundred kilograms, destroying anything in their path. Exercise extreme caution!
Life threat
Medical warning: Strong magnets can turn off pacemakers and defibrillators. Do not approach if you have medical devices.
Safe operation
Handle magnets with awareness. Their huge power can surprise even professionals. Stay alert and do not underestimate their power.
Demagnetization risk
Regular neodymium magnets (N-type) lose power when the temperature goes above 80°C. The loss of strength is permanent.
Shattering risk
Despite the nickel coating, neodymium is brittle and cannot withstand shocks. Do not hit, as the magnet may shatter into sharp, dangerous pieces.
Phone sensors
A strong magnetic field disrupts the operation of compasses in phones and navigation systems. Do not bring magnets close to a smartphone to avoid damaging the sensors.
Cards and drives
Data protection: Strong magnets can damage payment cards and delicate electronics (heart implants, hearing aids, mechanical watches).
Sensitization to coating
Nickel alert: The Ni-Cu-Ni coating contains nickel. If redness happens, cease handling magnets and use protective gear.
