NCM 30x13.5x5 / N38 - channel magnetic holder
channel magnetic holder
Catalog no 360488
GTIN/EAN: 5906301814870
Diameter Ø
30 mm [±1 mm]
Height
13.5 mm [±1 mm]
Weight
14 g
Magnetization Direction
↑ axial
Load capacity
16.00 kg / 156.91 N
Coating
[NiCuNi] Nickel
9.40 ZŁ with VAT / pcs + price for transport
7.64 ZŁ net + 23% VAT / pcs
bulk discounts:
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Lifting power and shape of neodymium magnets can be verified using our
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Orders placed before 14:00 will be shipped the same business day.
Technical details - NCM 30x13.5x5 / N38 - channel magnetic holder
Specification / characteristics - NCM 30x13.5x5 / N38 - channel magnetic holder
| properties | values |
|---|---|
| Cat. no. | 360488 |
| GTIN/EAN | 5906301814870 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 30 mm [±1 mm] |
| Height | 13.5 mm [±1 mm] |
| Weight | 14 g |
| Magnetization Direction | ↑ axial |
| Load capacity ~ ? | 16.00 kg / 156.91 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% |
Sustainability
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
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Advantages as well as disadvantages of neodymium magnets.
Benefits
- They virtually do not lose strength, because even after 10 years the performance loss is only ~1% (based on calculations),
- They feature excellent resistance to magnetism drop when exposed to opposing magnetic fields,
- In other words, due to the metallic surface of gold, the element becomes visually attractive,
- Magnets are distinguished by huge magnetic induction on the surface,
- 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...
- Possibility of detailed creating and optimizing to atypical applications,
- Versatile presence in high-tech industry – they are utilized in magnetic memories, drive modules, medical devices, as well as modern systems.
- Thanks to efficiency per cm³, small magnets offer high operating force, in miniature format,
Limitations
- Susceptibility to cracking is one of their disadvantages. Upon strong impact they can break. We recommend keeping them in a special holder, which not only secures them against impacts but also increases their durability
- Neodymium magnets lose force when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of power (a factor is the shape as well as dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely resistant to heat
- Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material resistant to moisture, in case of application outdoors
- Due to limitations in creating threads and complicated shapes in magnets, we propose using cover - magnetic mechanism.
- Potential hazard related to microscopic parts of magnets are risky, in case of ingestion, which gains importance in the context of child safety. Furthermore, tiny parts of these products are able to be problematic in diagnostics medical when they are in the body.
- High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which can limit application in large quantities
Pull force analysis
Detachment force of the magnet in optimal conditions – what contributes to it?
- using a base made of mild steel, functioning as a ideal flux conductor
- whose transverse dimension reaches at least 10 mm
- with a plane free of scratches
- with total lack of distance (without paint)
- during pulling in a direction perpendicular to the mounting surface
- in stable room temperature
Impact of factors on magnetic holding capacity in practice
- Distance – the presence of foreign body (rust, tape, gap) interrupts the magnetic circuit, which reduces capacity rapidly (even by 50% at 0.5 mm).
- Loading method – declared lifting capacity refers to detachment vertically. When applying parallel force, the magnet holds much less (typically approx. 20-30% of maximum force).
- Element thickness – for full efficiency, the steel must be adequately massive. Paper-thin metal limits the lifting capacity (the magnet "punches through" it).
- Metal type – not every steel attracts identically. High carbon content weaken the interaction with the magnet.
- Base smoothness – the more even the plate, the better the adhesion and higher the lifting capacity. Roughness acts like micro-gaps.
- Operating temperature – NdFeB sinters have a sensitivity to temperature. At higher temperatures they lose power, and at low temperatures gain strength (up to a certain limit).
Lifting capacity testing was carried out on a smooth plate of suitable thickness, under a perpendicular pulling force, in contrast under attempts to slide the magnet the holding force is lower. Moreover, even a slight gap between the magnet’s surface and the plate reduces the lifting capacity.
Safety rules for work with neodymium magnets
Fire risk
Fire warning: Rare earth powder is explosive. Avoid machining magnets without safety gear as this risks ignition.
Implant safety
Warning for patients: Powerful magnets disrupt medical devices. Maintain at least 30 cm distance or ask another person to handle the magnets.
No play value
Adult use only. Small elements pose a choking risk, leading to severe trauma. Store away from children and animals.
Hand protection
Big blocks can crush fingers in a fraction of a second. Under no circumstances put your hand betwixt two attracting surfaces.
Maximum temperature
Keep cool. Neodymium magnets are susceptible to temperature. If you require operation above 80°C, look for HT versions (H, SH, UH).
Cards and drives
Device Safety: Neodymium magnets can damage payment cards and delicate electronics (pacemakers, medical aids, mechanical watches).
Nickel allergy
Some people experience a sensitization to Ni, which is the typical protective layer for NdFeB magnets. Prolonged contact may cause dermatitis. It is best to use protective gloves.
Beware of splinters
Despite the nickel coating, the material is delicate and cannot withstand shocks. Do not hit, as the magnet may shatter into sharp, dangerous pieces.
Threat to navigation
GPS units and mobile phones are highly susceptible to magnetism. Close proximity with a powerful NdFeB magnet can permanently damage the internal compass in your phone.
Handling guide
Exercise caution. Rare earth magnets attract from a distance and snap with massive power, often faster than you can react.
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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