NCM 40x13.5x5 / N38 - channel magnetic holder
channel magnetic holder
Catalog no 360489
GTIN/EAN: 5906301814887
Diameter Ø
40 mm [±1 mm]
Height
13.5 mm [±1 mm]
Weight
18.4 g
Magnetization Direction
↑ axial
Load capacity
17.00 kg / 166.71 N
Coating
[NiCuNi] Nickel
14.19 ZŁ with VAT / pcs + price for transport
11.54 ZŁ net + 23% VAT / pcs
bulk discounts:
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Technical specification - NCM 40x13.5x5 / N38 - channel magnetic holder
Specification / characteristics - NCM 40x13.5x5 / N38 - channel magnetic holder
| properties | values |
|---|---|
| Cat. no. | 360489 |
| GTIN/EAN | 5906301814887 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 40 mm [±1 mm] |
| Height | 13.5 mm [±1 mm] |
| Weight | 18.4 g |
| Magnetization Direction | ↑ axial |
| Load capacity ~ ? | 17.00 kg / 166.71 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 as well as cons of Nd2Fe14B magnets.
Pros
- They retain attractive force for almost 10 years – the loss is just ~1% (in theory),
- They do not lose their magnetic properties even under strong external field,
- Thanks to the glossy finish, the coating of Ni-Cu-Ni, gold-plated, or silver-plated gives an aesthetic appearance,
- Magnetic induction on the working layer of the magnet turns out to be very high,
- Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and are able to act (depending on the form) even at a temperature of 230°C or more...
- Possibility of precise creating as well as modifying to concrete applications,
- Key role in modern technologies – they are utilized in magnetic memories, electric drive systems, medical devices, and complex engineering applications.
- Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in compact dimensions, which enables their usage in miniature devices
Limitations
- They are prone to damage upon too strong impacts. To avoid cracks, it is worth protecting magnets in a protective case. Such protection not only protects the magnet but also increases its resistance to damage
- 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
- They rust in a humid environment. For use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
- Limited possibility of creating threads in the magnet and complicated shapes - preferred is casing - magnetic holder.
- Potential hazard resulting from small fragments of magnets can be dangerous, if swallowed, which gains importance in the context of child health protection. Additionally, tiny parts of these devices can 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
Lifting parameters
Maximum magnetic pulling force – what it depends on?
- on a block made of structural steel, perfectly concentrating the magnetic flux
- whose transverse dimension is min. 10 mm
- with a plane free of scratches
- without any air gap between the magnet and steel
- during detachment in a direction vertical to the mounting surface
- at room temperature
Key elements affecting lifting force
- Distance (betwixt the magnet and the metal), since even a very small distance (e.g. 0.5 mm) leads to a reduction in lifting capacity by up to 50% (this also applies to varnish, corrosion or dirt).
- Force direction – remember that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the maximum value.
- Steel thickness – too thin plate does not close the flux, causing part of the power to be escaped into the air.
- Plate material – mild steel gives the best results. Alloy admixtures lower magnetic permeability and holding force.
- Smoothness – full contact is possible only on smooth steel. Rough texture create air cushions, weakening the magnet.
- Heat – neodymium magnets have a negative temperature coefficient. When it is hot they lose power, and in frost gain strength (up to a certain limit).
Lifting capacity was assessed using a steel plate with a smooth surface of optimal thickness (min. 20 mm), under perpendicular detachment force, however under parallel forces the load capacity is reduced by as much as 75%. In addition, even a slight gap between the magnet’s surface and the plate lowers the lifting capacity.
H&S for magnets
Magnets are brittle
Protect your eyes. Magnets can fracture upon uncontrolled impact, launching shards into the air. Wear goggles.
Dust is flammable
Powder generated during grinding of magnets is flammable. Do not drill into magnets unless you are an expert.
Electronic hazard
Very strong magnetic fields can erase data on payment cards, HDDs, and other magnetic media. Maintain a gap of min. 10 cm.
Choking Hazard
Absolutely store magnets out of reach of children. Risk of swallowing is significant, and the effects of magnets connecting inside the body are very dangerous.
Threat to navigation
A powerful magnetic field interferes with the functioning of magnetometers in smartphones and navigation systems. Keep magnets close to a smartphone to avoid damaging the sensors.
Pacemakers
Medical warning: Strong magnets can turn off pacemakers and defibrillators. Stay away if you have electronic implants.
Bone fractures
Risk of injury: The pulling power is so immense that it can cause hematomas, crushing, and broken bones. Protective gloves are recommended.
Safe operation
Before use, read the rules. Uncontrolled attraction can break the magnet or injure your hand. Think ahead.
Permanent damage
Keep cool. NdFeB magnets are sensitive to temperature. If you require resistance above 80°C, look for HT versions (H, SH, UH).
Nickel allergy
Allergy Notice: The nickel-copper-nickel coating consists of nickel. If redness happens, cease handling magnets and wear gloves.
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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