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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Product card - 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 |
Engineering simulation of the magnet - technical parameters
Presented information constitute the outcome of a engineering analysis. Results were calculated on models for the class Nd2Fe14B. Real-world parameters might slightly deviate from the simulation results. Please consider these data as a preliminary roadmap during assembly planning.
Table 1: Static force (force vs gap) - 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
|
safe |
| 1 mm |
1479 Gs
147.9 mT
|
0.20 kg / 0.44 LBS
199.7 g / 2.0 N
|
safe |
| 2 mm |
945 Gs
94.5 mT
|
0.08 kg / 0.18 LBS
81.6 g / 0.8 N
|
safe |
| 3 mm |
576 Gs
57.6 mT
|
0.03 kg / 0.07 LBS
30.3 g / 0.3 N
|
safe |
| 5 mm |
229 Gs
22.9 mT
|
0.00 kg / 0.01 LBS
4.8 g / 0.0 N
|
safe |
| 10 mm |
43 Gs
4.3 mT
|
0.00 kg / 0.00 LBS
0.2 g / 0.0 N
|
safe |
| 15 mm |
14 Gs
1.4 mT
|
0.00 kg / 0.00 LBS
0.0 g / 0.0 N
|
safe |
| 20 mm |
6 Gs
0.6 mT
|
0.00 kg / 0.00 LBS
0.0 g / 0.0 N
|
safe |
| 30 mm |
2 Gs
0.2 mT
|
0.00 kg / 0.00 LBS
0.0 g / 0.0 N
|
safe |
| 50 mm |
0 Gs
0.0 mT
|
0.00 kg / 0.00 LBS
0.0 g / 0.0 N
|
safe |
Table 2: Sliding capacity (vertical surface)
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 (shearing) - vertical pull
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: Steel thickness (substrate influence) - power losses
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 (stability) - thermal limit
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: Two magnets (repulsion) - forces in the system
MW 6x1 / N38
| Gap (mm) | Attraction (kg/lbs) (N-S) | Shear Strength (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: Protective zones (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 |
| Timepiece | 20 Gs (2.0 mT) | 1.5 cm |
| Mobile device | 40 Gs (4.0 mT) | 1.5 cm |
| Car key | 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: Impact energy (kinetic energy) - warning
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: Construction 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: Submerged application
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. Shear force
*Warning: On a vertical surface, the magnet retains just a fraction of its nominal pull.
2. Plate thickness effect
*Thin metal sheet (e.g. 0.5mm PC case) severely reduces 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) = 0.25
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.
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% |
Environmental data
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
Other proposals
Strengths and weaknesses of Nd2Fe14B magnets.
Benefits
- They do not lose magnetism, even over nearly ten years – the reduction in lifting capacity is only ~1% (based on measurements),
- Neodymium magnets are distinguished by highly resistant to magnetic field loss caused by external magnetic fields,
- The use of an elegant layer of noble metals (nickel, gold, silver) causes the element to present itself better,
- Neodymium magnets generate maximum magnetic induction on a contact point, which ensures high operational effectiveness,
- Neodymium magnets are characterized by very high magnetic induction on the magnet surface and are able to act (depending on the shape) even at a temperature of 230°C or more...
- Thanks to modularity in designing and the capacity to customize to client solutions,
- Significant place in electronics industry – they serve a role in computer drives, drive modules, medical devices, and multitasking production systems.
- Thanks to efficiency per cm³, small magnets offer high operating force, in miniature format,
Weaknesses
- To avoid cracks upon strong impacts, we suggest using special steel housings. Such a solution secures the magnet and simultaneously increases its durability.
- We warn that neodymium magnets can lose their strength at high temperatures. To prevent this, we recommend our specialized [AH] magnets, which work effectively even at 230°C.
- They rust in a humid environment - during use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
- We suggest cover - magnetic mount, due to difficulties in realizing nuts inside the magnet and complicated forms.
- Possible danger resulting from small fragments of magnets are risky, in case of ingestion, which is particularly important in the context of child health protection. It is also worth noting that small elements of these magnets are able to disrupt the diagnostic process medical after entering the body.
- Due to neodymium price, their price exceeds standard values,
Pull force analysis
Breakaway strength of the magnet in ideal conditions – what affects it?
- using a plate made of mild steel, functioning as a magnetic yoke
- possessing a massiveness of minimum 10 mm to ensure full flux closure
- with an polished touching surface
- without the slightest insulating layer between the magnet and steel
- under vertical application of breakaway force (90-degree angle)
- at temperature approx. 20 degrees Celsius
Magnet lifting force in use – key factors
- Distance (betwixt the magnet and the metal), because even a very small distance (e.g. 0.5 mm) can cause a decrease in lifting capacity by up to 50% (this also applies to varnish, corrosion or debris).
- Angle of force application – maximum parameter is reached only during pulling at a 90° angle. The force required to slide of the magnet along the surface is typically many times lower (approx. 1/5 of the lifting capacity).
- Substrate thickness – to utilize 100% power, the steel must be adequately massive. Thin sheet limits the lifting capacity (the magnet "punches through" it).
- Metal type – different alloys attracts identically. High carbon content weaken the attraction effect.
- Surface finish – ideal contact is possible only on polished steel. Rough texture reduce the real contact area, reducing force.
- Temperature – heating the magnet causes a temporary drop of induction. Check the thermal limit for a given model.
Lifting capacity was assessed using a steel plate with a smooth surface of suitable thickness (min. 20 mm), under vertically applied force, in contrast under attempts to slide the magnet the lifting capacity is smaller. In addition, even a slight gap between the magnet’s surface and the plate lowers the lifting capacity.
Safe handling of neodymium magnets
Handling rules
Be careful. Neodymium magnets attract from a distance and snap with massive power, often quicker than you can move away.
Hand protection
Risk of injury: The pulling power is so immense that it can result in blood blisters, crushing, and broken bones. Use thick gloves.
No play value
Neodymium magnets are not suitable for play. Swallowing a few magnets may result in them connecting inside the digestive tract, which constitutes a critical condition and necessitates immediate surgery.
Compass and GPS
Navigation devices and mobile phones are extremely susceptible to magnetism. Close proximity with a strong magnet can decalibrate the internal compass in your phone.
Heat warning
Control the heat. Heating the magnet to high heat will ruin its magnetic structure and pulling force.
Dust explosion hazard
Fire hazard: Neodymium dust is explosive. Avoid machining magnets in home conditions as this may cause fire.
Data carriers
Device Safety: Neodymium magnets can ruin payment cards and delicate electronics (pacemakers, medical aids, mechanical watches).
Allergic reactions
Medical facts indicate that the nickel plating (the usual finish) is a potent allergen. For allergy sufferers, prevent touching magnets with bare hands and select coated magnets.
Warning for heart patients
Medical warning: Strong magnets can deactivate pacemakers and defibrillators. Do not approach if you have electronic implants.
Shattering risk
Despite metallic appearance, the material is delicate and not impact-resistant. Avoid impacts, as the magnet may shatter into hazardous fragments.
