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
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Product card - 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 |
Material specification
| 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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Advantages and disadvantages of rare earth magnets.
Benefits
- They virtually do not lose power, because even after ten years the decline in efficiency is only ~1% (based on calculations),
- Neodymium magnets are characterized by remarkably resistant to loss of magnetic properties caused by magnetic disturbances,
- The use of an elegant coating of noble metals (nickel, gold, silver) causes the element to have aesthetics,
- Neodymium magnets generate maximum magnetic induction on a small surface, which ensures high operational effectiveness,
- Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the form) even at high temperatures reaching 230°C or more...
- Possibility of custom creating as well as optimizing to concrete applications,
- Key role in innovative solutions – they are utilized in HDD drives, electric motors, precision medical tools, as well as industrial machines.
- Thanks to efficiency per cm³, small magnets offer high operating force, in miniature format,
Weaknesses
- Brittleness 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 raises their durability
- When exposed to high temperature, neodymium magnets suffer a drop in strength. Often, when the temperature exceeds 80°C, their power decreases (depending on the size and 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 while using outdoors, we suggest using water-impermeable magnets made of rubber, plastic or other material resistant to moisture
- We suggest casing - magnetic mechanism, due to difficulties in producing threads inside the magnet and complicated forms.
- Health risk resulting from small fragments of magnets pose a threat, in case of ingestion, which becomes key in the context of child health protection. It is also worth noting that small elements of these devices are able to complicate diagnosis medical in case of swallowing.
- Due to complex production process, their price is higher than average,
Pull force analysis
Maximum lifting force for a neodymium magnet – what affects it?
- with the contact of a sheet made of low-carbon steel, guaranteeing maximum field concentration
- whose transverse dimension equals approx. 10 mm
- with an ideally smooth contact surface
- under conditions of no distance (metal-to-metal)
- during pulling in a direction perpendicular to the mounting surface
- at conditions approx. 20°C
Impact of factors on magnetic holding capacity in practice
- Clearance – the presence of foreign body (rust, dirt, gap) 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 capacity drops significantly, often to levels of 20-30% of the nominal value.
- Substrate thickness – to utilize 100% power, the steel must be sufficiently thick. Thin sheet restricts the lifting capacity (the magnet "punches through" it).
- Metal type – not every steel attracts identically. High carbon content weaken the attraction effect.
- Surface condition – smooth surfaces ensure maximum contact, which increases force. Uneven metal reduce efficiency.
- Thermal environment – temperature increase results in weakening of force. Check the maximum operating temperature for a given model.
Lifting capacity was determined using a smooth steel plate of suitable thickness (min. 20 mm), under vertically applied force, however under shearing force the load capacity is reduced by as much as 75%. Additionally, even a small distance between the magnet and the plate reduces the holding force.
Warnings
Do not overheat magnets
Watch the temperature. Heating the magnet above 80 degrees Celsius will destroy its magnetic structure and strength.
Hand protection
Danger of trauma: The attraction force is so immense that it can cause blood blisters, pinching, and even bone fractures. Use thick gloves.
Allergy Warning
Nickel alert: The Ni-Cu-Ni coating consists of nickel. If skin irritation happens, immediately stop working with magnets and wear gloves.
Magnet fragility
Beware of splinters. Magnets can fracture upon violent connection, launching shards into the air. We recommend safety glasses.
No play value
Only for adults. Small elements can be swallowed, causing severe trauma. Keep away from children and animals.
Electronic hazard
Equipment safety: Strong magnets can damage data carriers and sensitive devices (heart implants, hearing aids, mechanical watches).
Conscious usage
Handle magnets with awareness. Their huge power can surprise even experienced users. Stay alert and respect their power.
Impact on smartphones
Note: rare earth magnets produce a field that confuses sensitive sensors. Maintain a separation from your phone, device, and navigation systems.
Flammability
Powder generated during machining of magnets is flammable. Do not drill into magnets without proper cooling and knowledge.
Warning for heart patients
For implant holders: Powerful magnets affect electronics. Keep at least 30 cm distance or request help to handle the magnets.
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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