MW 6x6 / N38 - cylindrical magnet
cylindrical magnet
Catalog no 010094
GTIN/EAN: 5906301810933
Diameter Ø
6 mm [±0,1 mm]
Height
6 mm [±0,1 mm]
Weight
1.27 g
Magnetization Direction
↑ axial
Load capacity
1.14 kg / 11.18 N
Magnetic Induction
553.38 mT / 5534 Gs
Coating
[NiCuNi] Nickel
0.677 ZŁ with VAT / pcs + price for transport
0.550 ZŁ net + 23% VAT / pcs
bulk discounts:
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Technical details - MW 6x6 / N38 - cylindrical magnet
Specification / characteristics - MW 6x6 / N38 - cylindrical magnet
| properties | values |
|---|---|
| Cat. no. | 010094 |
| GTIN/EAN | 5906301810933 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 6 mm [±0,1 mm] |
| Height | 6 mm [±0,1 mm] |
| Weight | 1.27 g |
| Magnetization Direction | ↑ axial |
| Load capacity ~ ? | 1.14 kg / 11.18 N |
| Magnetic Induction ~ ? | 553.38 mT / 5534 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 analysis of the magnet - technical parameters
Presented values represent the outcome of a physical analysis. Values rely on models for the material Nd2Fe14B. Operational conditions may differ from theoretical values. Please consider these calculations as a reference point for designers.
Table 1: Static force (force vs gap) - interaction chart
MW 6x6 / N38
| Distance (mm) | Induction (Gauss) / mT | Pull Force (kg/lbs/g/N) | Risk Status |
|---|---|---|---|
| 0 mm |
5527 Gs
552.7 mT
|
1.14 kg / 2.51 pounds
1140.0 g / 11.2 N
|
weak grip |
| 1 mm |
3738 Gs
373.8 mT
|
0.52 kg / 1.15 pounds
521.5 g / 5.1 N
|
weak grip |
| 2 mm |
2366 Gs
236.6 mT
|
0.21 kg / 0.46 pounds
209.0 g / 2.0 N
|
weak grip |
| 3 mm |
1498 Gs
149.8 mT
|
0.08 kg / 0.18 pounds
83.7 g / 0.8 N
|
weak grip |
| 5 mm |
665 Gs
66.5 mT
|
0.02 kg / 0.04 pounds
16.5 g / 0.2 N
|
weak grip |
| 10 mm |
155 Gs
15.5 mT
|
0.00 kg / 0.00 pounds
0.9 g / 0.0 N
|
weak grip |
| 15 mm |
58 Gs
5.8 mT
|
0.00 kg / 0.00 pounds
0.1 g / 0.0 N
|
weak grip |
| 20 mm |
28 Gs
2.8 mT
|
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
weak grip |
| 30 mm |
9 Gs
0.9 mT
|
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
weak grip |
| 50 mm |
2 Gs
0.2 mT
|
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
weak grip |
Table 2: Sliding hold (wall)
MW 6x6 / N38
| Distance (mm) | Friction coefficient | Pull Force (kg/lbs/g/N) |
|---|---|---|
| 0 mm | Stal (~0.2) |
0.23 kg / 0.50 pounds
228.0 g / 2.2 N
|
| 1 mm | Stal (~0.2) |
0.10 kg / 0.23 pounds
104.0 g / 1.0 N
|
| 2 mm | Stal (~0.2) |
0.04 kg / 0.09 pounds
42.0 g / 0.4 N
|
| 3 mm | Stal (~0.2) |
0.02 kg / 0.04 pounds
16.0 g / 0.2 N
|
| 5 mm | Stal (~0.2) |
0.00 kg / 0.01 pounds
4.0 g / 0.0 N
|
| 10 mm | Stal (~0.2) |
0.00 kg / 0.00 pounds
0.0 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: Vertical assembly (shearing) - vertical pull
MW 6x6 / N38
| Surface type | Friction coefficient / % Mocy | Max load (kg/lbs/g/N) |
|---|---|---|
| Raw steel |
µ = 0.3
30% Nominalnej Siły
|
0.34 kg / 0.75 pounds
342.0 g / 3.4 N
|
| Painted steel (standard) |
µ = 0.2
20% Nominalnej Siły
|
0.23 kg / 0.50 pounds
228.0 g / 2.2 N
|
| Oily/slippery steel |
µ = 0.1
10% Nominalnej Siły
|
0.11 kg / 0.25 pounds
114.0 g / 1.1 N
|
| Magnet with anti-slip rubber |
µ = 0.5
50% Nominalnej Siły
|
0.57 kg / 1.26 pounds
570.0 g / 5.6 N
|
Table 4: Steel thickness (substrate influence) - power losses
MW 6x6 / N38
| Steel thickness (mm) | % power | Real pull force (kg/lbs/g/N) |
|---|---|---|
| 0.5 mm |
|
0.11 kg / 0.25 pounds
114.0 g / 1.1 N
|
| 1 mm |
|
0.29 kg / 0.63 pounds
285.0 g / 2.8 N
|
| 2 mm |
|
0.57 kg / 1.26 pounds
570.0 g / 5.6 N
|
| 3 mm |
|
0.86 kg / 1.88 pounds
855.0 g / 8.4 N
|
| 5 mm |
|
1.14 kg / 2.51 pounds
1140.0 g / 11.2 N
|
| 10 mm |
|
1.14 kg / 2.51 pounds
1140.0 g / 11.2 N
|
| 11 mm |
|
1.14 kg / 2.51 pounds
1140.0 g / 11.2 N
|
| 12 mm |
|
1.14 kg / 2.51 pounds
1140.0 g / 11.2 N
|
Table 5: Thermal stability (stability) - power drop
MW 6x6 / N38
| Ambient temp. (°C) | Power loss | Remaining pull (kg/lbs/g/N) | Status |
|---|---|---|---|
| 20 °C | 0.0% |
1.14 kg / 2.51 pounds
1140.0 g / 11.2 N
|
OK |
| 40 °C | -2.2% |
1.11 kg / 2.46 pounds
1114.9 g / 10.9 N
|
OK |
| 60 °C | -4.4% |
1.09 kg / 2.40 pounds
1089.8 g / 10.7 N
|
OK |
| 80 °C | -6.6% |
1.06 kg / 2.35 pounds
1064.8 g / 10.4 N
|
|
| 100 °C | -28.8% |
0.81 kg / 1.79 pounds
811.7 g / 8.0 N
|
Table 6: Magnet-Magnet interaction (attraction) - field range
MW 6x6 / N38
| Gap (mm) | Attraction (kg/lbs) (N-S) | Sliding Force (kg/lbs/g/N) | Repulsion (kg/lbs) (N-N) |
|---|---|---|---|
| 0 mm |
5.32 kg / 11.74 pounds
5 995 Gs
|
0.80 kg / 1.76 pounds
799 g / 7.8 N
|
N/A |
| 1 mm |
3.70 kg / 8.17 pounds
9 220 Gs
|
0.56 kg / 1.23 pounds
556 g / 5.5 N
|
3.33 kg / 7.35 pounds
~0 Gs
|
| 2 mm |
2.44 kg / 5.37 pounds
7 476 Gs
|
0.37 kg / 0.81 pounds
365 g / 3.6 N
|
2.19 kg / 4.83 pounds
~0 Gs
|
| 3 mm |
1.55 kg / 3.42 pounds
5 968 Gs
|
0.23 kg / 0.51 pounds
233 g / 2.3 N
|
1.40 kg / 3.08 pounds
~0 Gs
|
| 5 mm |
0.61 kg / 1.35 pounds
3 755 Gs
|
0.09 kg / 0.20 pounds
92 g / 0.9 N
|
0.55 kg / 1.22 pounds
~0 Gs
|
| 10 mm |
0.08 kg / 0.17 pounds
1 330 Gs
|
0.01 kg / 0.03 pounds
12 g / 0.1 N
|
0.07 kg / 0.15 pounds
~0 Gs
|
| 20 mm |
0.00 kg / 0.01 pounds
311 Gs
|
0.00 kg / 0.00 pounds
1 g / 0.0 N
|
0.00 kg / 0.00 pounds
~0 Gs
|
| 50 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
|
| 60 mm |
0.00 kg / 0.00 pounds
19 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
12 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
8 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
6 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
5 Gs
|
0.00 kg / 0.00 pounds
0 g / 0.0 N
|
0.00 kg / 0.00 pounds
~0 Gs
|
Table 7: Hazards (implants) - warnings
MW 6x6 / N38
| Object / Device | Limit (Gauss) / mT | Safe distance |
|---|---|---|
| Pacemaker | 5 Gs (0.5 mT) | 4.0 cm |
| Hearing aid | 10 Gs (1.0 mT) | 3.0 cm |
| Mechanical watch | 20 Gs (2.0 mT) | 2.5 cm |
| Mobile device | 40 Gs (4.0 mT) | 2.0 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: Collisions (kinetic energy) - warning
MW 6x6 / N38
| Start from (mm) | Speed (km/h) | Energy (J) | Predicted outcome |
|---|---|---|---|
| 10 mm |
30.23 km/h
(8.40 m/s)
|
0.04 J | |
| 30 mm |
52.34 km/h
(14.54 m/s)
|
0.13 J | |
| 50 mm |
67.56 km/h
(18.77 m/s)
|
0.22 J | |
| 100 mm |
95.55 km/h
(26.54 m/s)
|
0.45 J |
Table 9: Corrosion resistance
MW 6x6 / 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 6x6 / N38
| Parameter | Value | SI Unit / Description |
|---|---|---|
| Magnetic Flux | 1 613 Mx | 16.1 µWb |
| Pc Coefficient | 0.89 | High (Stable) |
Table 11: Submerged application
MW 6x6 / N38
| Environment | Effective steel pull | Effect |
|---|---|---|
| Air (land) | 1.14 kg | Standard |
| Water (riverbed) |
1.31 kg
(+0.17 kg buoyancy gain)
|
+14.5% |
1. Wall mount (shear)
*Note: On a vertical surface, the magnet holds just ~20% of its nominal pull.
2. Efficiency vs thickness
*Thin steel (e.g. 0.5mm PC case) severely reduces the holding force.
3. Thermal stability
*For standard magnets, the max working temp is 80°C.
4. Demagnetization curve and operating point (B-H)
chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.89
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.
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% |
Sustainability
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
Other deals
Advantages as well as disadvantages of Nd2Fe14B magnets.
Benefits
- They retain magnetic properties for nearly ten years – the drop is just ~1% (according to analyses),
- Neodymium magnets are distinguished by extremely resistant to loss of magnetic properties caused by external field sources,
- By covering with a shiny layer of silver, the element acquires an elegant look,
- Neodymium magnets generate maximum magnetic induction on a contact point, which ensures high operational effectiveness,
- Through (adequate) combination of ingredients, they can achieve high thermal resistance, enabling action at temperatures approaching 230°C and above...
- Possibility of accurate modeling as well as adjusting to complex needs,
- Wide application in advanced technology sectors – they are commonly used in mass storage devices, electric motors, diagnostic systems, as well as other advanced devices.
- Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications
Limitations
- Brittleness is one of their disadvantages. Upon intense impact they can fracture. We recommend keeping them in a special holder, which not only secures them against impacts but also increases their durability
- We warn that neodymium magnets can reduce 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 immune to moisture, in case of application outdoors
- Due to limitations in realizing threads and complicated forms in magnets, we recommend using cover - magnetic mount.
- Possible danger to health – tiny shards of magnets are risky, when accidentally swallowed, which is particularly important in the context of child safety. Furthermore, small elements of these magnets can disrupt the diagnostic process medical in case of swallowing.
- Due to neodymium price, their price is higher than average,
Lifting parameters
Maximum holding power of the magnet – what it depends on?
- using a plate made of mild steel, functioning as a ideal flux conductor
- whose transverse dimension is min. 10 mm
- characterized by smoothness
- without the slightest air gap between the magnet and steel
- for force acting at a right angle (pull-off, not shear)
- in neutral thermal conditions
Determinants of practical lifting force of a magnet
- Distance – the presence of foreign body (rust, dirt, air) acts as an insulator, which reduces capacity steeply (even by 50% at 0.5 mm).
- Force direction – declared lifting capacity refers to detachment vertically. When attempting to slide, the magnet holds much less (often approx. 20-30% of nominal force).
- Wall thickness – thin material does not allow full use of the magnet. Magnetic flux passes through the material instead of converting into lifting capacity.
- Plate material – low-carbon steel attracts best. Higher carbon content lower magnetic properties and lifting capacity.
- Base smoothness – the smoother and more polished the plate, the better the adhesion and stronger the hold. Unevenness creates an air distance.
- Operating temperature – NdFeB sinters have a negative temperature coefficient. When it is hot they lose power, and at low temperatures gain strength (up to a certain limit).
Holding force was checked on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, however under attempts to slide the magnet the load capacity is reduced by as much as 5 times. In addition, even a small distance between the magnet and the plate reduces the load capacity.
Warnings
Combustion hazard
Machining of NdFeB material poses a fire hazard. Magnetic powder oxidizes rapidly with oxygen and is difficult to extinguish.
No play value
NdFeB magnets are not toys. Eating multiple magnets can lead to them attracting across intestines, which constitutes a severe health hazard and requires urgent medical intervention.
Nickel allergy
Medical facts indicate that nickel (standard magnet coating) is a potent allergen. If you have an allergy, avoid direct skin contact and opt for encased magnets.
Protective goggles
Despite the nickel coating, neodymium is delicate and cannot withstand shocks. Do not hit, as the magnet may crumble into sharp, dangerous pieces.
Electronic hazard
Avoid bringing magnets close to a wallet, computer, or TV. The magnetism can irreversibly ruin these devices and wipe information from cards.
Do not overheat magnets
Keep cool. Neodymium magnets are sensitive to temperature. If you require operation above 80°C, look for special high-temperature series (H, SH, UH).
Immense force
Before use, read the rules. Sudden snapping can destroy the magnet or hurt your hand. Be predictive.
GPS and phone interference
GPS units and mobile phones are highly susceptible to magnetism. Close proximity with a strong magnet can ruin the sensors in your phone.
Bodily injuries
Mind your fingers. Two powerful magnets will snap together immediately with a force of several hundred kilograms, destroying anything in their path. Be careful!
ICD Warning
Patients with a heart stimulator have to keep an large gap from magnets. The magnetic field can disrupt the functioning of the life-saving device.
