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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Technical specification of the product - 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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Advantages as well as disadvantages of Nd2Fe14B magnets.
Strengths
- They do not lose power, even after approximately 10 years – the reduction in strength is only ~1% (based on measurements),
- Neodymium magnets are exceptionally resistant to magnetic field loss caused by external interference,
- A magnet with a shiny silver surface has better aesthetics,
- Magnetic induction on the top side of the magnet is extremely intense,
- Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can function (depending on the form) even at a temperature of 230°C or more...
- Thanks to versatility in forming and the ability to customize to specific needs,
- Wide application in electronics industry – they are commonly used in data components, drive modules, diagnostic systems, also modern systems.
- Thanks to efficiency per cm³, small magnets offer high operating force, with minimal size,
Disadvantages
- They are fragile upon heavy impacts. To avoid cracks, it is worth securing magnets in special housings. Such protection not only protects the magnet but also increases its resistance to damage
- Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of strength (a factor is the shape and 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
- When exposed to humidity, magnets usually rust. For applications outside, it is recommended to use protective magnets, such as those in rubber or plastics, which prevent oxidation as well as corrosion.
- We recommend casing - magnetic mount, due to difficulties in creating threads inside the magnet and complex forms.
- Health risk related to microscopic parts of magnets can be dangerous, in case of ingestion, which gains importance in the context of child health protection. Furthermore, small components of these magnets are able to disrupt the diagnostic process medical when they are in the body.
- Due to complex production process, their price is relatively high,
Pull force analysis
Detachment force of the magnet in optimal conditions – what affects it?
- with the contact of a yoke made of low-carbon steel, ensuring maximum field concentration
- possessing a thickness of minimum 10 mm to avoid saturation
- characterized by smoothness
- without any clearance between the magnet and steel
- under perpendicular force direction (90-degree angle)
- at ambient temperature room level
Key elements affecting lifting force
- Clearance – the presence of any layer (paint, dirt, gap) interrupts the magnetic circuit, which reduces power steeply (even by 50% at 0.5 mm).
- Load vector – highest force is available only during pulling at a 90° angle. The resistance to sliding of the magnet along the plate is typically several times smaller (approx. 1/5 of the lifting capacity).
- Element thickness – for full efficiency, the steel must be sufficiently thick. Paper-thin metal restricts the lifting capacity (the magnet "punches through" it).
- Steel type – low-carbon steel attracts best. Higher carbon content lower magnetic permeability and holding force.
- Surface finish – full contact is possible only on polished steel. Rough texture create air cushions, weakening the magnet.
- Temperature influence – hot environment weakens pulling force. Too high temperature can permanently demagnetize the magnet.
Holding force was measured on the plate surface of 20 mm thickness, when a perpendicular force was applied, whereas under attempts to slide the magnet the load capacity is reduced by as much as fivefold. In addition, even a slight gap between the magnet and the plate decreases the load capacity.
Precautions when working with neodymium magnets
Medical implants
Health Alert: Strong magnets can turn off heart devices and defibrillators. Stay away if you have electronic implants.
Product not for children
Product intended for adults. Small elements can be swallowed, leading to severe trauma. Store out of reach of kids and pets.
Powerful field
Before starting, check safety instructions. Uncontrolled attraction can destroy the magnet or injure your hand. Be predictive.
Precision electronics
Note: rare earth magnets produce a field that confuses precision electronics. Keep a safe distance from your phone, tablet, and navigation systems.
Risk of cracking
Protect your eyes. Magnets can explode upon violent connection, launching sharp fragments into the air. We recommend safety glasses.
Permanent damage
Monitor thermal conditions. Exposing the magnet to high heat will ruin its magnetic structure and strength.
Warning for allergy sufferers
Allergy Notice: The Ni-Cu-Ni coating contains nickel. If skin irritation happens, immediately stop handling magnets and use protective gear.
Fire warning
Machining of neodymium magnets poses a fire hazard. Magnetic powder oxidizes rapidly with oxygen and is difficult to extinguish.
Finger safety
Big blocks can crush fingers in a fraction of a second. Never put your hand betwixt two attracting surfaces.
Data carriers
Powerful magnetic fields can erase data on credit cards, HDDs, and storage devices. Maintain a gap of min. 10 cm.
Tabela kosztu i czasu dostawy
Płatność przed wysyłką:
GLS kurier
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14.99 ZŁ
InPost Paczkomaty 24/7
Przesyłka będzie u Ciebie za 1-2 dni
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Płatność przy odbiorze (pobranie):
GLS kurier
Przesyłka będzie u Ciebie za 1-2 dni
23.00 ZŁ
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