MW 6x6 / N38 - cylindrical magnet
cylindrical magnet
Catalog no 010094
GTIN: 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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MW 6x6 / N38 - cylindrical magnet
Specification / characteristics MW 6x6 / N38 - cylindrical magnet
| properties | values |
|---|---|
| Cat. no. | 010094 |
| GTIN | 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 | T |
| 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 106 | °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 product - technical parameters
The following information represent the outcome of a physical analysis. Results were calculated on models for the material NdFeB. Actual parameters might slightly deviate from the simulation results. Treat these data as a supplementary guide for designers.
MW 6x6 / N38
| Distance (mm) | Induction (Gauss) / mT | Pull Force (kg) | Risk Status |
|---|---|---|---|
| 0 mm |
5527 Gs
552.7 mT
|
1.14 kg / 1140.0 g
11.2 N
|
low risk |
| 1 mm |
3738 Gs
373.8 mT
|
0.52 kg / 521.5 g
5.1 N
|
low risk |
| 2 mm |
2366 Gs
236.6 mT
|
0.21 kg / 209.0 g
2.0 N
|
low risk |
| 3 mm |
1498 Gs
149.8 mT
|
0.08 kg / 83.7 g
0.8 N
|
low risk |
| 5 mm |
665 Gs
66.5 mT
|
0.02 kg / 16.5 g
0.2 N
|
low risk |
| 10 mm |
155 Gs
15.5 mT
|
0.00 kg / 0.9 g
0.0 N
|
low risk |
| 15 mm |
58 Gs
5.8 mT
|
0.00 kg / 0.1 g
0.0 N
|
low risk |
| 20 mm |
28 Gs
2.8 mT
|
0.00 kg / 0.0 g
0.0 N
|
low risk |
| 30 mm |
9 Gs
0.9 mT
|
0.00 kg / 0.0 g
0.0 N
|
low risk |
| 50 mm |
2 Gs
0.2 mT
|
0.00 kg / 0.0 g
0.0 N
|
low risk |
MW 6x6 / N38
| Distance (mm) | Friction coefficient | Pull Force (kg) |
|---|---|---|
| 0 mm | Stal (~0.2) |
0.23 kg / 228.0 g
2.2 N
|
| 1 mm | Stal (~0.2) |
0.10 kg / 104.0 g
1.0 N
|
| 2 mm | Stal (~0.2) |
0.04 kg / 42.0 g
0.4 N
|
| 3 mm | Stal (~0.2) |
0.02 kg / 16.0 g
0.2 N
|
| 5 mm | Stal (~0.2) |
0.00 kg / 4.0 g
0.0 N
|
| 10 mm | Stal (~0.2) |
0.00 kg / 0.0 g
0.0 N
|
| 15 mm | Stal (~0.2) |
0.00 kg / 0.0 g
0.0 N
|
| 20 mm | Stal (~0.2) |
0.00 kg / 0.0 g
0.0 N
|
| 30 mm | Stal (~0.2) |
0.00 kg / 0.0 g
0.0 N
|
| 50 mm | Stal (~0.2) |
0.00 kg / 0.0 g
0.0 N
|
MW 6x6 / N38
| Surface type | Friction coefficient / % Mocy | Max load (kg) |
|---|---|---|
| Raw steel |
µ = 0.3
30% Nominalnej Siły
|
0.34 kg / 342.0 g
3.4 N
|
| Painted steel (standard) |
µ = 0.2
20% Nominalnej Siły
|
0.23 kg / 228.0 g
2.2 N
|
| Oily/slippery steel |
µ = 0.1
10% Nominalnej Siły
|
0.11 kg / 114.0 g
1.1 N
|
| Magnet with anti-slip rubber |
µ = 0.5
50% Nominalnej Siły
|
0.57 kg / 570.0 g
5.6 N
|
MW 6x6 / N38
| Steel thickness (mm) | % power | Real pull force (kg) |
|---|---|---|
| 0.5 mm |
|
0.11 kg / 114.0 g
1.1 N
|
| 1 mm |
|
0.29 kg / 285.0 g
2.8 N
|
| 2 mm |
|
0.57 kg / 570.0 g
5.6 N
|
| 5 mm |
|
1.14 kg / 1140.0 g
11.2 N
|
| 10 mm |
|
1.14 kg / 1140.0 g
11.2 N
|
MW 6x6 / N38
| Ambient temp. (°C) | Power loss | Remaining pull | Status |
|---|---|---|---|
| 20 °C | 0.0% |
1.14 kg / 1140.0 g
11.2 N
|
OK |
| 40 °C | -2.2% |
1.11 kg / 1114.9 g
10.9 N
|
OK |
| 60 °C | -4.4% |
1.09 kg / 1089.8 g
10.7 N
|
OK |
| 80 °C | -6.6% |
1.06 kg / 1064.8 g
10.4 N
|
|
| 100 °C | -28.8% |
0.81 kg / 811.7 g
8.0 N
|
MW 6x6 / N38
| Gap (mm) | Attraction (kg) (N-S) | Repulsion (kg) (N-N) |
|---|---|---|
| 0 mm |
5.32 kg / 5324 g
52.2 N
5 995 Gs
|
N/A |
| 1 mm |
3.70 kg / 3705 g
36.3 N
9 220 Gs
|
3.33 kg / 3334 g
32.7 N
~0 Gs
|
| 2 mm |
2.44 kg / 2436 g
23.9 N
7 476 Gs
|
2.19 kg / 2192 g
21.5 N
~0 Gs
|
| 3 mm |
1.55 kg / 1552 g
15.2 N
5 968 Gs
|
1.40 kg / 1397 g
13.7 N
~0 Gs
|
| 5 mm |
0.61 kg / 614 g
6.0 N
3 755 Gs
|
0.55 kg / 553 g
5.4 N
~0 Gs
|
| 10 mm |
0.08 kg / 77 g
0.8 N
1 330 Gs
|
0.07 kg / 69 g
0.7 N
~0 Gs
|
| 20 mm |
0.00 kg / 4 g
0.0 N
311 Gs
|
0.00 kg / 0 g
0.0 N
~0 Gs
|
| 50 mm |
0.00 kg / 0 g
0.0 N
31 Gs
|
0.00 kg / 0 g
0.0 N
~0 Gs
|
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 |
| Phone / Smartphone | 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 |
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 |
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) |
MW 6x6 / N38
| Parameter | Value | Jedn. SI / Opis |
|---|---|---|
| Strumień (Flux) | 1 613 Mx | 16.1 µWb |
| Współczynnik Pc | 0.89 | Wysoki (Stabilny) |
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. Montaż na Ścianie (Ześlizg)
*Uwaga: Na pionowej ścianie magnes utrzyma tylko ok. 20-30% tego co na suficie.
2. Wpływ Grubości Blachy
*Cienka blacha (np. obudowa PC 0.5mm) drastycznie osłabia magnes.
3. Wytrzymałość Temperaturowa
*Dla materiału N38 granica bezpieczeństwa to 80°C.
Jak rozdzielać?
Nie próbuj odrywać magnesów siłą!
Zawsze zsuwaj je na bok krawędzi stołu.
Elektronika
Trzymaj z dala od dysków HDD, kart płatniczych i telefonów.
Rozruszniki Serca
Osoby z rozrusznikiem muszą zachować dystans min. 10 cm.
Nie dla dzieci
Ryzyko połknięcia. Połknięcie dwóch magnesów grozi śmiercią.
Kruchy materiał
Magnes to ceramika! Uderzenie o inny magnes spowoduje odpryski.
Do czego użyć tego magnesu?
Sprawdzone zastosowania dla wymiaru 15x10x2 mm
Elektronika i Czujniki
Idealny jako element wyzwalający dla czujników Halla oraz kontaktronów w systemach alarmowych. Płaski kształt (2mm) pozwala na ukrycie go w wąskich szczelinach obudowy.
Modelarstwo i Druk 3D
Stosowany do tworzenia niewidocznych zamknięć w modelach drukowanych 3D. Można go wprasować w wydruk lub wkleić w kieszeń zaprojektowaną w modelu CAD.
Meble i Fronty
Używany jako "domykacz" lekkich drzwiczek szafkowych, gdzie standardowe magnesy meblowe są za grube. Wymaga wklejenia w płytkie podfrezowanie.
Other deals
Advantages as well as disadvantages of neodymium magnets.
Besides their high retention, neodymium magnets are valued for these benefits:
- They do not lose magnetism, even after approximately 10 years – the decrease in lifting capacity is only ~1% (according to tests),
- They show high resistance to demagnetization induced by external disturbances,
- The use of an shiny coating of noble metals (nickel, gold, silver) causes the element to have aesthetics,
- They are known for high magnetic induction at the operating surface, which increases their power,
- Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can function (depending on the shape) even at a temperature of 230°C or more...
- Thanks to freedom in shaping and the capacity to adapt to specific needs,
- Fundamental importance in advanced technology sectors – they serve a role in mass storage devices, motor assemblies, precision medical tools, also multitasking production systems.
- Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in small dimensions, which makes them useful in small systems
Disadvantages of neodymium magnets:
- Susceptibility to cracking is one of their disadvantages. Upon strong impact they can fracture. We recommend keeping them in a special holder, which not only secures them against impacts but also raises their durability
- Neodymium magnets decrease their force under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
- They oxidize in a humid environment - during use outdoors we advise using waterproof magnets e.g. in rubber, plastic
- Limited ability of creating threads in the magnet and complex shapes - preferred is a housing - magnet mounting.
- Health risk related to microscopic parts of magnets pose a threat, when accidentally swallowed, which becomes key in the aspect of protecting the youngest. Additionally, small elements of these magnets can complicate diagnosis medical after entering the body.
- High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which increases costs of application in large quantities
Maximum lifting capacity of the magnet – what it depends on?
Holding force of 1.14 kg is a theoretical maximum value conducted under the following configuration:
- on a block made of mild steel, optimally conducting the magnetic field
- with a thickness minimum 10 mm
- characterized by lack of roughness
- without any insulating layer between the magnet and steel
- for force acting at a right angle (pull-off, not shear)
- at temperature room level
Determinants of lifting force in real conditions
Bear in mind that the working load may be lower subject to elements below, starting with the most relevant:
- Space between surfaces – even a fraction of a millimeter of separation (caused e.g. by veneer or unevenness) diminishes the pulling force, often by half at just 0.5 mm.
- Angle of force application – maximum parameter is obtained only during pulling at a 90° angle. The force required to slide of the magnet along the plate is standardly several times lower (approx. 1/5 of the lifting capacity).
- Plate thickness – insufficiently thick steel does not accept the full field, causing part of the power to be lost into the air.
- Steel grade – ideal substrate is pure iron steel. Hardened steels may have worse magnetic properties.
- Surface condition – smooth surfaces ensure maximum contact, which increases force. Rough surfaces reduce efficiency.
- Operating temperature – neodymium magnets have a sensitivity to temperature. At higher temperatures they are weaker, and at low temperatures they can be stronger (up to a certain limit).
* Lifting capacity testing was performed on a smooth plate of optimal thickness, under a perpendicular pulling force, whereas under attempts to slide the magnet the lifting capacity is smaller. In addition, even a slight gap {between} the magnet and the plate decreases the load capacity.
Advantages as well as disadvantages of neodymium magnets.
Besides their high retention, neodymium magnets are valued for these benefits:
- They do not lose magnetism, even after approximately 10 years – the decrease in lifting capacity is only ~1% (according to tests),
- They show high resistance to demagnetization induced by external disturbances,
- The use of an shiny coating of noble metals (nickel, gold, silver) causes the element to have aesthetics,
- They are known for high magnetic induction at the operating surface, which increases their power,
- Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can function (depending on the shape) even at a temperature of 230°C or more...
- Thanks to freedom in shaping and the capacity to adapt to specific needs,
- Fundamental importance in advanced technology sectors – they serve a role in mass storage devices, motor assemblies, precision medical tools, also multitasking production systems.
- Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in small dimensions, which makes them useful in small systems
Disadvantages of neodymium magnets:
- Susceptibility to cracking is one of their disadvantages. Upon strong impact they can fracture. We recommend keeping them in a special holder, which not only secures them against impacts but also raises their durability
- Neodymium magnets decrease their force under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
- They oxidize in a humid environment - during use outdoors we advise using waterproof magnets e.g. in rubber, plastic
- Limited ability of creating threads in the magnet and complex shapes - preferred is a housing - magnet mounting.
- Health risk related to microscopic parts of magnets pose a threat, when accidentally swallowed, which becomes key in the aspect of protecting the youngest. Additionally, small elements of these magnets can complicate diagnosis medical after entering the body.
- High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which increases costs of application in large quantities
Maximum lifting capacity of the magnet – what it depends on?
Holding force of 1.14 kg is a theoretical maximum value conducted under the following configuration:
- on a block made of mild steel, optimally conducting the magnetic field
- with a thickness minimum 10 mm
- characterized by lack of roughness
- without any insulating layer between the magnet and steel
- for force acting at a right angle (pull-off, not shear)
- at temperature room level
Determinants of lifting force in real conditions
Bear in mind that the working load may be lower subject to elements below, starting with the most relevant:
- Space between surfaces – even a fraction of a millimeter of separation (caused e.g. by veneer or unevenness) diminishes the pulling force, often by half at just 0.5 mm.
- Angle of force application – maximum parameter is obtained only during pulling at a 90° angle. The force required to slide of the magnet along the plate is standardly several times lower (approx. 1/5 of the lifting capacity).
- Plate thickness – insufficiently thick steel does not accept the full field, causing part of the power to be lost into the air.
- Steel grade – ideal substrate is pure iron steel. Hardened steels may have worse magnetic properties.
- Surface condition – smooth surfaces ensure maximum contact, which increases force. Rough surfaces reduce efficiency.
- Operating temperature – neodymium magnets have a sensitivity to temperature. At higher temperatures they are weaker, and at low temperatures they can be stronger (up to a certain limit).
* Lifting capacity testing was performed on a smooth plate of optimal thickness, under a perpendicular pulling force, whereas under attempts to slide the magnet the lifting capacity is smaller. In addition, even a slight gap {between} the magnet and the plate decreases the load capacity.
H&S for magnets
Warning for allergy sufferers
It is widely known that the nickel plating (standard magnet coating) is a common allergen. If your skin reacts to metals, refrain from touching magnets with bare hands and select versions in plastic housing.
No play value
Absolutely store magnets away from children. Choking hazard is significant, and the effects of magnets connecting inside the body are life-threatening.
Permanent damage
Avoid heat. Neodymium magnets are sensitive to heat. If you require operation above 80°C, inquire about special high-temperature series (H, SH, UH).
Beware of splinters
Despite the nickel coating, neodymium is delicate and cannot withstand shocks. Do not hit, as the magnet may crumble into sharp, dangerous pieces.
Protect data
Data protection: Neodymium magnets can ruin data carriers and delicate electronics (heart implants, medical aids, timepieces).
Do not underestimate power
Be careful. Rare earth magnets act from a long distance and connect with huge force, often quicker than you can react.
Danger to pacemakers
People with a pacemaker should keep an absolute distance from magnets. The magnetism can disrupt the functioning of the life-saving device.
Crushing force
Mind your fingers. Two powerful magnets will snap together instantly with a force of massive weight, crushing everything in their path. Exercise extreme caution!
Combustion hazard
Powder generated during cutting of magnets is self-igniting. Avoid drilling into magnets unless you are an expert.
GPS Danger
An intense magnetic field interferes with the functioning of compasses in smartphones and navigation systems. Do not bring magnets near a device to avoid damaging the sensors.
Danger!
Learn more about risks in the article: Safety of working with magnets.
