NCM 20x13.5x5 / N38 - channel magnetic holder
channel magnetic holder
Catalog no 360487
GTIN/EAN: 5906301814863
Diameter Ø
20 mm [±1 mm]
Height
13.5 mm [±1 mm]
Weight
9.2 g
Magnetization Direction
↑ axial
Load capacity
8.00 kg / 78.45 N
Coating
[NiCuNi] Nickel
7.29 ZŁ with VAT / pcs + price for transport
5.93 ZŁ net + 23% VAT / pcs
bulk discounts:
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Parameters as well as form of a neodymium magnet can be calculated on our
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Orders placed before 14:00 will be shipped the same business day.
Technical data of the product - NCM 20x13.5x5 / N38 - channel magnetic holder
Specification / characteristics - NCM 20x13.5x5 / N38 - channel magnetic holder
| properties | values |
|---|---|
| Cat. no. | 360487 |
| GTIN/EAN | 5906301814863 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 20 mm [±1 mm] |
| Height | 13.5 mm [±1 mm] |
| Weight | 9.2 g |
| Magnetization Direction | ↑ axial |
| Load capacity ~ ? | 8.00 kg / 78.45 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 |
See more proposals
![UMGZ 48x24x11.5 [M8] GZ / N38 - magnetic holder external thread](https://cdn3.dhit.pl/graphics/products/umgw-48x24x11.5-m8-gz-bit.jpg "UMGZ 48x24x11.5 [M8] GZ / N38 - magnetic holder external thread")
Advantages and disadvantages of Nd2Fe14B magnets.
Benefits
- They do not lose strength, even after around ten years – the drop in lifting capacity is only ~1% (based on measurements),
- They possess excellent resistance to magnetic field loss due to external magnetic sources,
- The use of an elegant layer of noble metals (nickel, gold, silver) causes the element to be more visually attractive,
- They feature high magnetic induction at the operating surface, which improves attraction properties,
- Thanks to resistance to high temperature, they can operate (depending on the form) even at temperatures up to 230°C and higher...
- Thanks to modularity in forming and the ability to adapt to complex applications,
- Fundamental importance in electronics industry – they serve a role in hard drives, motor assemblies, precision medical tools, as well as industrial machines.
- Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in tiny dimensions, which allows their use in compact constructions
Limitations
- At strong impacts they can break, therefore we advise placing them in steel cases. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
- When exposed to high temperature, neodymium magnets experience a drop in power. 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
- When exposed to humidity, magnets start to rust. To use them in conditions outside, it is recommended to use protective magnets, such as those in rubber or plastics, which prevent oxidation and corrosion.
- Due to limitations in producing nuts and complex forms in magnets, we recommend using cover - magnetic mechanism.
- Health risk resulting from small fragments of magnets are risky, if swallowed, which is particularly important in the aspect of protecting the youngest. Additionally, tiny parts of these devices can complicate diagnosis medical after entering the body.
- Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications
Holding force characteristics
Maximum lifting force for a neodymium magnet – what contributes to it?
- on a plate made of structural steel, effectively closing the magnetic flux
- whose thickness equals approx. 10 mm
- with an polished touching surface
- with direct contact (without impurities)
- during detachment in a direction perpendicular to the plane
- at standard ambient temperature
Magnet lifting force in use – key factors
- Clearance – the presence of foreign body (rust, tape, air) acts as an insulator, which reduces power steeply (even by 50% at 0.5 mm).
- Pull-off angle – remember that the magnet has greatest strength perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the maximum value.
- Metal thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field penetrates through instead of generating force.
- Steel grade – the best choice is pure iron steel. Hardened steels may have worse magnetic properties.
- Smoothness – ideal contact is possible only on smooth steel. Any scratches and bumps reduce the real contact area, reducing force.
- Heat – NdFeB sinters have a sensitivity to temperature. At higher temperatures they lose power, and at low temperatures gain strength (up to a certain limit).
Holding force was tested on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, in contrast under attempts to slide the magnet the holding force is lower. In addition, even a small distance between the magnet and the plate decreases the load capacity.
Safety rules for work with NdFeB magnets
Do not give to children
These products are not suitable for play. Eating multiple magnets may result in them connecting inside the digestive tract, which constitutes a severe health hazard and necessitates immediate surgery.
Finger safety
Big blocks can break fingers in a fraction of a second. Under no circumstances place your hand betwixt two strong magnets.
Nickel coating and allergies
A percentage of the population experience a hypersensitivity to nickel, which is the common plating for NdFeB magnets. Prolonged contact might lead to skin redness. It is best to use safety gloves.
Risk of cracking
Despite the nickel coating, the material is brittle and not impact-resistant. Avoid impacts, as the magnet may shatter into hazardous fragments.
Mechanical processing
Fire hazard: Rare earth powder is highly flammable. Avoid machining magnets in home conditions as this may cause fire.
Caution required
Before starting, read the rules. Sudden snapping can destroy the magnet or injure your hand. Be predictive.
Impact on smartphones
An intense magnetic field negatively affects the functioning of magnetometers in smartphones and GPS navigation. Do not bring magnets close to a smartphone to avoid damaging the sensors.
Operating temperature
Do not overheat. Neodymium magnets are susceptible to heat. If you need resistance above 80°C, ask us about HT versions (H, SH, UH).
ICD Warning
Warning for patients: Strong magnetic fields affect electronics. Keep minimum 30 cm distance or request help to handle the magnets.
Data carriers
Very strong magnetic fields can erase data on credit cards, HDDs, and other magnetic media. Keep a distance of at least 10 cm.
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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