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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Physical properties - 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 |
Chemical composition
| 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 as well as cons of neodymium magnets.
Advantages
- They virtually do not lose power, because even after ten years the decline in efficiency is only ~1% (in laboratory conditions),
- Neodymium magnets are remarkably resistant to loss of magnetic properties caused by external field sources,
- Thanks to the metallic finish, the layer of nickel, gold, or silver-plated gives an professional appearance,
- Magnets possess very high magnetic induction on the outer side,
- Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the shape) even at high temperatures reaching 230°C or more...
- Thanks to flexibility in forming and the capacity to customize to individual projects,
- Huge importance in advanced technology sectors – they are utilized in data components, motor assemblies, medical equipment, as well as other advanced devices.
- Thanks to their power density, small magnets offer high operating force, occupying minimum space,
Limitations
- Brittleness is one of their disadvantages. Upon intense impact they can break. We recommend keeping them in a steel housing, which not only protects them against impacts but also raises their durability
- When exposed to high temperature, neodymium magnets experience a drop in strength. Often, when the temperature exceeds 80°C, their power decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
- Magnets exposed to a humid environment can corrode. Therefore during using outdoors, we recommend using waterproof magnets made of rubber, plastic or other material resistant to moisture
- Limited ability of creating threads in the magnet and complex forms - preferred is casing - magnet mounting.
- Possible danger resulting from small fragments of magnets are risky, when accidentally swallowed, which is particularly important in the context of child safety. Furthermore, tiny parts of these devices are able to be problematic in diagnostics medical after entering the body.
- Due to neodymium price, their price exceeds standard values,
Holding force characteristics
Optimal lifting capacity of a neodymium magnet – what affects it?
- with the application of a yoke made of low-carbon steel, ensuring full magnetic saturation
- with a thickness no less than 10 mm
- characterized by smoothness
- without any insulating layer between the magnet and steel
- during pulling in a direction perpendicular to the mounting surface
- at ambient temperature approx. 20 degrees Celsius
Impact of factors on magnetic holding capacity in practice
- Clearance – existence of foreign body (rust, dirt, air) interrupts the magnetic circuit, which lowers capacity steeply (even by 50% at 0.5 mm).
- Force direction – note that the magnet has greatest strength perpendicularly. Under shear forces, the holding force drops drastically, often to levels of 20-30% of the maximum value.
- Plate thickness – insufficiently thick steel does not accept the full field, causing part of the power to be escaped into the air.
- Chemical composition of the base – low-carbon steel gives the best results. Alloy admixtures decrease magnetic properties and holding force.
- Smoothness – full contact is possible only on polished steel. Rough texture create air cushions, weakening the magnet.
- Thermal environment – heating the magnet causes a temporary drop of induction. Check the thermal limit for a given model.
Holding force was measured on the plate surface of 20 mm thickness, when the force acted perpendicularly, however under parallel forces the holding force is lower. In addition, even a slight gap between the magnet and the plate lowers the holding force.
H&S for magnets
Combustion hazard
Combustion risk: Rare earth powder is highly flammable. Avoid machining magnets in home conditions as this may cause fire.
Allergy Warning
A percentage of the population have a sensitization to nickel, which is the common plating for NdFeB magnets. Extended handling can result in a rash. We suggest wear protective gloves.
Maximum temperature
Control the heat. Heating the magnet above 80 degrees Celsius will destroy its magnetic structure and pulling force.
GPS Danger
Navigation devices and smartphones are highly sensitive to magnetic fields. Direct contact with a powerful NdFeB magnet can permanently damage the sensors in your phone.
Bodily injuries
Large magnets can crush fingers in a fraction of a second. Under no circumstances put your hand betwixt two attracting surfaces.
Safe distance
Intense magnetic fields can destroy records on payment cards, hard drives, and storage devices. Stay away of at least 10 cm.
Implant safety
For implant holders: Strong magnetic fields disrupt electronics. Maintain minimum 30 cm distance or request help to work with the magnets.
Keep away from children
Adult use only. Small elements pose a choking risk, leading to intestinal necrosis. Keep away from children and animals.
Safe operation
Before use, read the rules. Uncontrolled attraction can destroy the magnet or injure your hand. Be predictive.
Magnets are brittle
Protect your eyes. Magnets can explode upon violent connection, launching sharp fragments into the air. Eye protection is mandatory.
Tabela kosztu i czasu dostawy
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23.00 ZŁ
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