UMC 16x5/2x5 / N38 - cylindrical magnetic holder
cylindrical magnetic holder
Catalog no 320406
GTIN/EAN: 5906301814627
Diameter
16 mm [±1 mm]
internal diameter Ø
5/2 mm [±1 mm]
Height
5 mm [±1 mm]
Weight
5.5 g
Load capacity
4.00 kg / 39.23 N
Coating
[NiCuNi] Nickel
3.33 ZŁ with VAT / pcs + price for transport
2.71 ZŁ net + 23% VAT / pcs
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Detailed specification - UMC 16x5/2x5 / N38 - cylindrical magnetic holder
Specification / characteristics - UMC 16x5/2x5 / N38 - cylindrical magnetic holder
| properties | values |
|---|---|
| Cat. no. | 320406 |
| GTIN/EAN | 5906301814627 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter | 16 mm [±1 mm] |
| internal diameter Ø | 5/2 mm [±1 mm] |
| Height | 5 mm [±1 mm] |
| Weight | 5.5 g |
| Load capacity ~ ? | 4.00 kg / 39.23 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% |
Ecology and recycling (GPSR)
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
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Pros and cons of Nd2Fe14B magnets.
Benefits
- They have unchanged lifting capacity, and over around 10 years their performance decreases symbolically – ~1% (in testing),
- They possess excellent resistance to magnetic field loss as a result of external fields,
- In other words, due to the reflective finish of silver, the element looks attractive,
- They are known for high magnetic induction at the operating surface, which increases their power,
- Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can work (depending on the form) even at a temperature of 230°C or more...
- Thanks to the potential of accurate shaping and customization to unique projects, magnetic components can be modeled in a variety of geometric configurations, which makes them more universal,
- Fundamental importance in electronics industry – they are used in computer drives, motor assemblies, precision medical tools, and modern systems.
- Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in tiny dimensions, which enables their usage in compact constructions
Disadvantages
- At strong impacts they can crack, therefore we recommend placing them in strong housings. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
- Neodymium magnets lose their force 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 stability even at temperatures up to 230°C
- Magnets exposed to a humid environment can rust. Therefore while using outdoors, we advise using waterproof magnets made of rubber, plastic or other material protecting against moisture
- We recommend casing - magnetic holder, due to difficulties in creating nuts inside the magnet and complicated shapes.
- Potential hazard related to microscopic parts of magnets are risky, when accidentally swallowed, which is particularly important in the context of child safety. Additionally, small components of these products can be problematic in diagnostics medical in case of swallowing.
- High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which increases costs of application in large quantities
Holding force characteristics
Maximum lifting capacity of the magnet – what it depends on?
- with the application of a sheet made of low-carbon steel, ensuring maximum field concentration
- with a thickness minimum 10 mm
- characterized by lack of roughness
- under conditions of ideal adhesion (metal-to-metal)
- during detachment in a direction perpendicular to the mounting surface
- at standard ambient temperature
Determinants of lifting force in real conditions
- Clearance – existence of foreign body (rust, tape, air) interrupts the magnetic circuit, which lowers capacity steeply (even by 50% at 0.5 mm).
- Loading method – declared lifting capacity refers to detachment vertically. When slipping, the magnet exhibits significantly lower power (typically approx. 20-30% of nominal force).
- Base massiveness – too thin sheet causes magnetic saturation, causing part of the power to be escaped to the other side.
- Steel grade – ideal substrate is high-permeability steel. Stainless steels may generate lower lifting capacity.
- Surface condition – ground elements ensure maximum contact, which improves field saturation. Rough surfaces reduce efficiency.
- Heat – NdFeB sinters have a sensitivity to temperature. When it is hot they are weaker, and in frost gain strength (up to a certain limit).
Lifting capacity testing was conducted on plates with a smooth surface of suitable thickness, under a perpendicular pulling force, in contrast under parallel forces the holding force is lower. In addition, even a small distance between the magnet and the plate lowers the lifting capacity.
Precautions when working with NdFeB magnets
Do not underestimate power
Exercise caution. Rare earth magnets act from a distance and connect with huge force, often quicker than you can move away.
Fire warning
Fire hazard: Rare earth powder is explosive. Do not process magnets without safety gear as this risks ignition.
Material brittleness
Watch out for shards. Magnets can fracture upon uncontrolled impact, ejecting sharp fragments into the air. Wear goggles.
Power loss in heat
Control the heat. Exposing the magnet above 80 degrees Celsius will permanently weaken its properties and pulling force.
Nickel coating and allergies
Nickel alert: The nickel-copper-nickel coating contains nickel. If redness appears, cease working with magnets and wear gloves.
Electronic hazard
Intense magnetic fields can corrupt files on payment cards, HDDs, and other magnetic media. Stay away of min. 10 cm.
Precision electronics
Be aware: rare earth magnets produce a field that interferes with sensitive sensors. Keep a separation from your mobile, device, and GPS.
Danger to the youngest
NdFeB magnets are not suitable for play. Eating multiple magnets may result in them attracting across intestines, which constitutes a severe health hazard and necessitates urgent medical intervention.
Life threat
For implant holders: Strong magnetic fields affect medical devices. Maintain minimum 30 cm distance or ask another person to work with the magnets.
Crushing risk
Mind your fingers. Two large magnets will join instantly with a force of massive weight, crushing everything in their path. Exercise extreme caution!
Tabela kosztu i czasu dostawy
Płatność przed wysyłką:
GLS kurier
Przesyłka będzie u Ciebie za 2-3 dni
14.99 ZŁ
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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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