UMS 32x10.5x5.5x8 / N38 - conical magnetic holder
conical magnetic holder
Catalog no 220329
GTIN/EAN: 5906301814191
Diameter Ø
32 mm [±1 mm]
cone dimension Ø
10.5x5.5 mm [±1 mm]
Height
8 mm [±1 mm]
Weight
37 g
Magnetization Direction
↑ axial
Load capacity
25.00 kg / 245.17 N
Coating
[NiCuNi] Nickel
12.09 ZŁ with VAT / pcs + price for transport
9.83 ZŁ net + 23% VAT / pcs
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Physical properties - UMS 32x10.5x5.5x8 / N38 - conical magnetic holder
Specification / characteristics - UMS 32x10.5x5.5x8 / N38 - conical magnetic holder
| properties | values |
|---|---|
| Cat. no. | 220329 |
| GTIN/EAN | 5906301814191 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 32 mm [±1 mm] |
| cone dimension Ø | 10.5x5.5 mm [±1 mm] |
| Height | 8 mm [±1 mm] |
| Weight | 37 g |
| Magnetization Direction | ↑ axial |
| Load capacity ~ ? | 25.00 kg / 245.17 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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Strengths and weaknesses of neodymium magnets.
Advantages
- They have unchanged lifting capacity, and over around 10 years their attraction force decreases symbolically – ~1% (according to theory),
- Magnets very well resist against demagnetization caused by ambient magnetic noise,
- The use of an aesthetic finish of noble metals (nickel, gold, silver) causes the element to be more visually attractive,
- Magnetic induction on the top side of the magnet is exceptional,
- Thanks to resistance to high temperature, they are capable of working (depending on the form) even at temperatures up to 230°C and higher...
- Possibility of exact shaping and optimizing to specific applications,
- Huge importance in electronics industry – they are utilized in magnetic memories, electric drive systems, diagnostic systems, also industrial machines.
- Relatively small size with high pulling force – neodymium magnets offer high power in compact dimensions, which makes them useful in compact constructions
Disadvantages
- Susceptibility to cracking is one of their disadvantages. Upon strong impact they can break. We advise keeping them in a special holder, which not only secures them against impacts but also raises their durability
- NdFeB 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. To use them in conditions outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation as well as corrosion.
- We recommend cover - magnetic mount, due to difficulties in producing nuts inside the magnet and complicated forms.
- Health risk to health – tiny shards of magnets pose a threat, if swallowed, which becomes key in the context of child health protection. It is also worth noting that tiny parts of these products can complicate diagnosis medical in case of swallowing.
- Due to complex production process, their price is relatively high,
Holding force characteristics
Detachment force of the magnet in optimal conditions – what contributes to it?
- with the application of a yoke made of special test steel, guaranteeing maximum field concentration
- possessing a massiveness of minimum 10 mm to avoid saturation
- with an ideally smooth touching surface
- with total lack of distance (without paint)
- for force acting at a right angle (in the magnet axis)
- at temperature room level
Magnet lifting force in use – key factors
- Air gap (betwixt the magnet and the plate), as even a microscopic clearance (e.g. 0.5 mm) results in a drastic drop in force by up to 50% (this also applies to paint, rust or dirt).
- Direction of force – highest force is available only during perpendicular pulling. The force required to slide of the magnet along the surface is usually many times smaller (approx. 1/5 of the lifting capacity).
- Metal thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field penetrates through instead of converting into lifting capacity.
- Metal type – not every steel attracts identically. Alloy additives worsen the interaction with the magnet.
- Surface structure – the more even the surface, the better the adhesion and stronger the hold. Unevenness creates an air distance.
- Temperature – heating the magnet results in weakening of force. It is worth remembering the maximum operating temperature for a given model.
Lifting capacity was assessed by applying a polished steel plate of optimal thickness (min. 20 mm), under perpendicular pulling force, however under attempts to slide the magnet the holding force is lower. Moreover, even a small distance between the magnet and the plate lowers the holding force.
H&S for magnets
Danger to pacemakers
Life threat: Neodymium magnets can deactivate pacemakers and defibrillators. Do not approach if you have medical devices.
Combustion hazard
Combustion risk: Rare earth powder is explosive. Do not process magnets in home conditions as this risks ignition.
No play value
Product intended for adults. Tiny parts pose a choking risk, causing serious injuries. Store away from kids and pets.
Cards and drives
Do not bring magnets close to a purse, computer, or TV. The magnetism can permanently damage these devices and erase data from cards.
Allergy Warning
Studies show that the nickel plating (standard magnet coating) is a strong allergen. If your skin reacts to metals, refrain from direct skin contact or opt for coated magnets.
Conscious usage
Use magnets with awareness. Their immense force can surprise even experienced users. Be vigilant and do not underestimate their power.
Impact on smartphones
Navigation devices and mobile phones are highly sensitive to magnetism. Close proximity with a powerful NdFeB magnet can permanently damage the internal compass in your phone.
Eye protection
NdFeB magnets are sintered ceramics, meaning they are very brittle. Impact of two magnets will cause them shattering into shards.
Thermal limits
Keep cool. NdFeB magnets are susceptible to temperature. If you need resistance above 80°C, ask us about HT versions (H, SH, UH).
Bodily injuries
Mind your fingers. Two large magnets will snap together instantly with a force of massive weight, crushing everything in their path. Be careful!
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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