UMS 16x6.5x3.5x5 / N38 - conical magnetic holder
conical magnetic holder
Catalog no 220326
GTIN/EAN: 5906301814160
Diameter Ø
16 mm [±1 mm]
cone dimension Ø
6.5x3.5 mm [±1 mm]
Height
5 mm [±1 mm]
Weight
5.5 g
Magnetization Direction
↑ axial
Load capacity
5.00 kg / 49.03 N
Coating
[NiCuNi] Nickel
4.48 ZŁ with VAT / pcs + price for transport
3.64 ZŁ net + 23% VAT / pcs
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Detailed specification - UMS 16x6.5x3.5x5 / N38 - conical magnetic holder
Specification / characteristics - UMS 16x6.5x3.5x5 / N38 - conical magnetic holder
| properties | values |
|---|---|
| Cat. no. | 220326 |
| GTIN/EAN | 5906301814160 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 16 mm [±1 mm] |
| cone dimension Ø | 6.5x3.5 mm [±1 mm] |
| Height | 5 mm [±1 mm] |
| Weight | 5.5 g |
| Magnetization Direction | ↑ axial |
| Load capacity ~ ? | 5.00 kg / 49.03 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 |
Other proposals
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Advantages as well as disadvantages of rare earth magnets.
Advantages
- They do not lose strength, even after nearly ten years – the drop in power is only ~1% (based on measurements),
- Neodymium magnets are highly resistant to magnetic field loss caused by external magnetic fields,
- A magnet with a smooth gold surface has better aesthetics,
- Magnetic induction on the top side of the magnet is exceptional,
- Through (adequate) combination of ingredients, they can achieve high thermal resistance, allowing for functioning at temperatures reaching 230°C and above...
- Thanks to flexibility in forming and the ability to customize to complex applications,
- Fundamental importance in future technologies – they serve a role in HDD drives, electric motors, diagnostic systems, and multitasking production systems.
- Thanks to their power density, small magnets offer high operating force, with minimal size,
Weaknesses
- They are fragile upon heavy impacts. To avoid cracks, it is worth securing magnets using a steel holder. Such protection not only protects the magnet but also improves its resistance to damage
- Neodymium magnets lose strength when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop 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 very resistant to heat
- When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation and corrosion.
- Due to limitations in creating nuts and complex shapes in magnets, we recommend using casing - magnetic mount.
- Potential hazard resulting from small fragments of magnets pose a threat, if swallowed, which is particularly important in the aspect of protecting the youngest. Furthermore, tiny parts of these products can complicate diagnosis medical after entering the body.
- With large orders the cost of neodymium magnets is a challenge,
Lifting parameters
Maximum magnetic pulling force – what contributes to it?
- using a sheet made of mild steel, serving as a circuit closing element
- possessing a massiveness of minimum 10 mm to avoid saturation
- with an polished touching surface
- with zero gap (no coatings)
- under perpendicular application of breakaway force (90-degree angle)
- in temp. approx. 20°C
Lifting capacity in real conditions – factors
- Air gap (between the magnet and the plate), since even a very small clearance (e.g. 0.5 mm) results in a decrease in force by up to 50% (this also applies to paint, corrosion or dirt).
- Direction of force – highest force is obtained only during pulling at a 90° angle. The resistance to sliding of the magnet along the surface is usually several times lower (approx. 1/5 of the lifting capacity).
- Substrate thickness – for full efficiency, the steel must be adequately massive. Paper-thin metal limits the attraction force (the magnet "punches through" it).
- Material composition – not every steel reacts the same. High carbon content weaken the attraction effect.
- Surface structure – the more even the surface, the better the adhesion and stronger the hold. Unevenness acts like micro-gaps.
- Temperature – temperature increase results in weakening of induction. It is worth remembering the maximum operating temperature for a given model.
Holding force was checked on the plate surface of 20 mm thickness, when a perpendicular force was applied, whereas under parallel forces the holding force is lower. In addition, even a small distance between the magnet’s surface and the plate reduces the lifting capacity.
Warnings
Adults only
Neodymium magnets are not toys. Swallowing a few magnets can lead to them attracting across intestines, which constitutes a severe health hazard and requires immediate surgery.
Medical implants
Life threat: Strong magnets can deactivate heart devices and defibrillators. Do not approach if you have medical devices.
Avoid contact if allergic
It is widely known that the nickel plating (standard magnet coating) is a common allergen. For allergy sufferers, refrain from direct skin contact and select coated magnets.
Threat to electronics
Very strong magnetic fields can corrupt files on credit cards, hard drives, and other magnetic media. Keep a distance of at least 10 cm.
Heat sensitivity
Control the heat. Exposing the magnet to high heat will destroy its magnetic structure and pulling force.
Physical harm
Mind your fingers. Two large magnets will snap together immediately with a force of massive weight, destroying everything in their path. Be careful!
Immense force
Before starting, check safety instructions. Sudden snapping can break the magnet or injure your hand. Think ahead.
Keep away from electronics
Remember: neodymium magnets produce a field that disrupts sensitive sensors. Keep a safe distance from your phone, tablet, and GPS.
Protective goggles
Watch out for shards. Magnets can explode upon uncontrolled impact, ejecting sharp fragments into the air. We recommend safety glasses.
Dust explosion hazard
Machining of neodymium magnets carries a risk of fire hazard. Neodymium dust oxidizes rapidly with oxygen and is difficult to extinguish.
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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