NCM 15x13.5x5 / N38 - channel magnetic holder
channel magnetic holder
Catalog no 360486
GTIN/EAN: 5906301814856
Diameter Ø
15 mm [±1 mm]
Height
13.5 mm [±1 mm]
Weight
6.8 g
Magnetization Direction
↑ axial
Load capacity
7.00 kg / 68.65 N
Coating
[NiCuNi] Nickel
5.10 ZŁ with VAT / pcs + price for transport
4.15 ZŁ net + 23% VAT / pcs
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Technical of the product - NCM 15x13.5x5 / N38 - channel magnetic holder
Specification / characteristics - NCM 15x13.5x5 / N38 - channel magnetic holder
| properties | values |
|---|---|
| Cat. no. | 360486 |
| GTIN/EAN | 5906301814856 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 15 mm [±1 mm] |
| Height | 13.5 mm [±1 mm] |
| Weight | 6.8 g |
| Magnetization Direction | ↑ axial |
| Load capacity ~ ? | 7.00 kg / 68.65 N |
| Coating | [NiCuNi] Nickel |
| Manufacturing Tolerance | ±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 |
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% |
Environmental data
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
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Pros and cons of neodymium magnets.
Strengths
- They have constant strength, and over nearly 10 years their attraction force decreases symbolically – ~1% (according to theory),
- They possess excellent resistance to magnetic field loss due to external magnetic sources,
- A magnet with a shiny nickel surface looks better,
- Magnets exhibit maximum magnetic induction on the active area,
- Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
- Thanks to versatility in shaping and the capacity to modify to unusual requirements,
- Versatile presence in future technologies – they are commonly used in mass storage devices, electric motors, diagnostic systems, and technologically advanced constructions.
- Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in small dimensions, which enables their usage in compact constructions
Limitations
- Susceptibility to cracking is one of their disadvantages. Upon strong impact they can break. We recommend keeping them in a steel housing, which not only protects them against impacts but also increases their durability
- Neodymium magnets lose their power 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
- Magnets exposed to a humid environment can rust. Therefore while using outdoors, we advise using waterproof magnets made of rubber, plastic or other material resistant to moisture
- Limited ability of making threads in the magnet and complex shapes - preferred is casing - mounting mechanism.
- Possible danger to health – tiny shards of magnets are risky, when accidentally swallowed, which becomes key in the aspect of protecting the youngest. It is also worth noting that small elements of these products can be problematic in diagnostics medical after entering the body.
- Due to complex production process, their price exceeds standard values,
Pull force analysis
Magnetic strength at its maximum – what affects it?
- with the contact of a sheet made of special test steel, guaranteeing maximum field concentration
- whose transverse dimension reaches at least 10 mm
- characterized by even structure
- under conditions of gap-free contact (surface-to-surface)
- under axial force direction (90-degree angle)
- at temperature approx. 20 degrees Celsius
Impact of factors on magnetic holding capacity in practice
- Gap (betwixt the magnet and the metal), as even a very small clearance (e.g. 0.5 mm) leads to a decrease in lifting capacity by up to 50% (this also applies to paint, corrosion or debris).
- Force direction – remember that the magnet has greatest strength perpendicularly. Under shear forces, the holding force drops drastically, often to levels of 20-30% of the nominal value.
- Plate thickness – too thin steel does not accept the full field, causing part of the flux to be escaped to the other side.
- Steel type – mild steel gives the best results. Alloy steels decrease magnetic permeability and holding force.
- Surface structure – the smoother and more polished the plate, the larger the contact zone and higher the lifting capacity. Roughness creates an air distance.
- Temperature – temperature increase causes a temporary drop of induction. Check the thermal limit for a given model.
Lifting capacity was measured using a polished steel plate of suitable thickness (min. 20 mm), under vertically applied force, whereas under attempts to slide the magnet the lifting capacity is smaller. Moreover, even a slight gap between the magnet’s surface and the plate decreases the lifting capacity.
Safe handling of neodymium magnets
Avoid contact if allergic
Certain individuals suffer from a sensitization to Ni, which is the common plating for NdFeB magnets. Prolonged contact can result in skin redness. We recommend wear safety gloves.
Medical implants
People with a ICD have to keep an large gap from magnets. The magnetism can stop the functioning of the life-saving device.
No play value
Adult use only. Small elements pose a choking risk, leading to severe trauma. Store away from kids and pets.
Serious injuries
Risk of injury: The pulling power is so great that it can cause blood blisters, crushing, and broken bones. Use thick gloves.
Threat to navigation
Note: rare earth magnets produce a field that interferes with sensitive sensors. Keep a safe distance from your mobile, device, and navigation systems.
Fragile material
NdFeB magnets are ceramic materials, meaning they are very brittle. Clashing of two magnets will cause them cracking into shards.
Safe distance
Avoid bringing magnets near a purse, laptop, or TV. The magnetic field can permanently damage these devices and wipe information from cards.
Machining danger
Drilling and cutting of NdFeB material carries a risk of fire hazard. Neodymium dust oxidizes rapidly with oxygen and is difficult to extinguish.
Powerful field
Exercise caution. Neodymium magnets act from a distance and snap with huge force, often faster than you can move away.
Permanent damage
Standard neodymium magnets (N-type) lose magnetization when the temperature goes above 80°C. Damage is permanent.
Tabela kosztu i czasu dostawy
Płatność przed wysyłką:
GLS kurier
Przesyłka będzie u Ciebie za 2-3 dni
14.99 ZŁ
InPost Paczkomaty 24/7
Przesyłka będzie u Ciebie za 1-2 dni
12.30 ZŁ
Płatność przy odbiorze (pobranie):
GLS kurier
Przesyłka będzie u Ciebie za 1-2 dni
23.00 ZŁ
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