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 specification - 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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Strengths and weaknesses of Nd2Fe14B magnets.
Benefits
- They retain magnetic properties for almost ten years – the loss is just ~1% (in theory),
- They feature excellent resistance to weakening of magnetic properties as a result of opposing magnetic fields,
- The use of an aesthetic finish of noble metals (nickel, gold, silver) causes the element to present itself better,
- Magnetic induction on the working part of the magnet is impressive,
- Through (appropriate) combination of ingredients, they can achieve high thermal resistance, allowing for action at temperatures reaching 230°C and above...
- Possibility of detailed forming as well as adjusting to concrete requirements,
- Wide application in modern technologies – they are used in mass storage devices, drive modules, advanced medical instruments, also other advanced devices.
- Thanks to concentrated force, small magnets offer high operating force, occupying minimum space,
Weaknesses
- To avoid cracks under impact, we suggest using special steel holders. Such a solution secures the magnet and simultaneously increases its durability.
- Neodymium magnets decrease their force under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
- When exposed to humidity, magnets usually rust. To use them in conditions outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which prevent oxidation as well as corrosion.
- Due to limitations in producing nuts and complex shapes in magnets, we recommend using a housing - magnetic holder.
- Possible danger related to microscopic parts of magnets pose a threat, when accidentally swallowed, which gains importance in the context of child health protection. Additionally, small elements of these devices can disrupt the diagnostic process medical after entering the body.
- Due to expensive raw materials, their price exceeds standard values,
Pull force analysis
Maximum holding power of the magnet – what contributes to it?
- on a plate made of mild steel, optimally conducting the magnetic flux
- with a cross-section of at least 10 mm
- with a surface perfectly flat
- with direct contact (without coatings)
- during pulling in a direction perpendicular to the mounting surface
- at ambient temperature room level
Determinants of lifting force in real conditions
- Gap (between the magnet and the metal), as even a tiny distance (e.g. 0.5 mm) leads to a decrease in force by up to 50% (this also applies to paint, corrosion or dirt).
- Loading method – declared lifting capacity refers to pulling vertically. When applying parallel force, the magnet exhibits much less (often approx. 20-30% of maximum force).
- Metal thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field penetrates through instead of generating force.
- Steel type – mild steel gives the best results. Alloy admixtures decrease magnetic properties and lifting capacity.
- Surface condition – ground elements ensure maximum contact, which improves field saturation. Uneven metal weaken the grip.
- Temperature influence – high temperature reduces magnetic field. Exceeding the limit temperature can permanently damage the magnet.
Lifting capacity testing was conducted on a smooth plate of suitable thickness, under perpendicular forces, whereas under attempts to slide the magnet the holding force is lower. Moreover, even a slight gap between the magnet’s surface and the plate lowers the lifting capacity.
Safety rules for work with neodymium magnets
Skin irritation risks
Warning for allergy sufferers: The Ni-Cu-Ni coating consists of nickel. If an allergic reaction appears, cease handling magnets and wear gloves.
Finger safety
Large magnets can crush fingers instantly. Do not place your hand between two attracting surfaces.
Combustion hazard
Fire warning: Rare earth powder is explosive. Do not process magnets without safety gear as this may cause fire.
This is not a toy
Always keep magnets away from children. Risk of swallowing is significant, and the effects of magnets clamping inside the body are fatal.
Caution required
Before use, check safety instructions. Uncontrolled attraction can break the magnet or injure your hand. Think ahead.
Magnet fragility
NdFeB magnets are ceramic materials, meaning they are very brittle. Clashing of two magnets will cause them shattering into small pieces.
Permanent damage
Monitor thermal conditions. Exposing the magnet above 80 degrees Celsius will permanently weaken its magnetic structure and pulling force.
Threat to electronics
Powerful magnetic fields can corrupt files on credit cards, HDDs, and storage devices. Maintain a gap of at least 10 cm.
GPS and phone interference
Remember: neodymium magnets produce a field that confuses sensitive sensors. Keep a separation from your mobile, tablet, and GPS.
Danger to pacemakers
Warning for patients: Powerful magnets affect electronics. Keep minimum 30 cm distance or ask another person to work with the magnets.
Tabela kosztu i czasu dostawy
Płatność przed wysyłką:
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Płatność przy odbiorze (pobranie):
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Przesyłka będzie u Ciebie za 1-2 dni
23.00 ZŁ
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