UMC 36x6/4X8 / N38 - cylindrical magnetic holder
cylindrical magnetic holder
Catalog no 320410
GTIN/EAN: 5906301814665
Diameter
36 mm [±1 mm]
internal diameter Ø
6/4 mm [±1 mm]
Height
8 mm [±1 mm]
Weight
45 g
Load capacity
29.00 kg / 284.39 N
Coating
[NiCuNi] Nickel
21.49 ZŁ with VAT / pcs + price for transport
17.47 ZŁ net + 23% VAT / pcs
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Product card - UMC 36x6/4X8 / N38 - cylindrical magnetic holder
Specification / characteristics - UMC 36x6/4X8 / N38 - cylindrical magnetic holder
| properties | values |
|---|---|
| Cat. no. | 320410 |
| GTIN/EAN | 5906301814665 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter | 36 mm [±1 mm] |
| internal diameter Ø | 6/4 mm [±1 mm] |
| Height | 8 mm [±1 mm] |
| Weight | 45 g |
| Load capacity ~ ? | 29.00 kg / 284.39 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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Strengths and weaknesses of Nd2Fe14B magnets.
Strengths
- They retain attractive force for around ten years – the loss is just ~1% (in theory),
- They feature excellent resistance to magnetic field loss as a result of external fields,
- A magnet with a metallic silver surface has better aesthetics,
- Magnetic induction on the working part of the magnet turns out to be maximum,
- Through (adequate) combination of ingredients, they can achieve high thermal strength, enabling functioning at temperatures approaching 230°C and above...
- Possibility of custom creating as well as modifying to atypical requirements,
- Wide application in advanced technology sectors – they serve a role in data components, brushless drives, diagnostic systems, as well as technologically advanced constructions.
- Relatively small size with high pulling force – neodymium magnets offer high power in compact dimensions, which makes them useful in miniature devices
Disadvantages
- To avoid cracks under impact, we suggest using special steel holders. Such a solution secures the magnet and simultaneously increases its durability.
- When exposed to high temperature, neodymium magnets experience a drop in strength. Often, when the temperature exceeds 80°C, their strength 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 waterproof magnets made of rubber, plastic or other material protecting against moisture
- Due to limitations in producing nuts and complex forms in magnets, we propose using cover - magnetic holder.
- Health risk related to microscopic parts of magnets pose a threat, if swallowed, which becomes key in the context of child safety. Additionally, small elements of these magnets are able to complicate diagnosis medical after entering the body.
- With budget limitations the cost of neodymium magnets can be a barrier,
Lifting parameters
Maximum lifting capacity of the magnet – what affects it?
- on a base made of mild steel, perfectly concentrating the magnetic field
- with a cross-section of at least 10 mm
- with an polished touching surface
- without the slightest insulating layer between the magnet and steel
- under vertical application of breakaway force (90-degree angle)
- at standard ambient temperature
Magnet lifting force in use – key factors
- Space between surfaces – every millimeter of distance (caused e.g. by veneer or dirt) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
- Force direction – remember that the magnet has greatest strength perpendicularly. Under shear forces, the holding force drops drastically, often to levels of 20-30% of the nominal value.
- Metal thickness – the thinner the sheet, the weaker the hold. Magnetic flux passes through the material instead of generating force.
- Chemical composition of the base – mild steel gives the best results. Alloy steels lower magnetic permeability and holding force.
- Plate texture – smooth surfaces guarantee perfect abutment, which increases force. Uneven metal weaken the grip.
- Operating temperature – neodymium magnets have a negative temperature coefficient. At higher temperatures they lose power, and in frost they can be stronger (up to a certain limit).
Lifting capacity testing was conducted on plates with a smooth surface of suitable thickness, under a perpendicular pulling force, whereas under shearing force the lifting capacity is smaller. Additionally, even a slight gap between the magnet’s surface and the plate decreases the load capacity.
Safety rules for work with neodymium magnets
No play value
Adult use only. Tiny parts pose a choking risk, leading to serious injuries. Store away from children and animals.
Metal Allergy
Medical facts indicate that the nickel plating (the usual finish) is a potent allergen. For allergy sufferers, avoid direct skin contact and opt for encased magnets.
Power loss in heat
Regular neodymium magnets (N-type) lose magnetization when the temperature goes above 80°C. Damage is permanent.
Medical interference
Life threat: Strong magnets can turn off heart devices and defibrillators. Do not approach if you have medical devices.
Magnets are brittle
Despite metallic appearance, the material is delicate and cannot withstand shocks. Avoid impacts, as the magnet may shatter into sharp, dangerous pieces.
Protect data
Very strong magnetic fields can corrupt files on payment cards, hard drives, and other magnetic media. Keep a distance of at least 10 cm.
Bone fractures
Mind your fingers. Two powerful magnets will join immediately with a force of massive weight, crushing anything in their path. Be careful!
Caution required
Be careful. Rare earth magnets act from a distance and connect with massive power, often faster than you can react.
GPS and phone interference
A powerful magnetic field interferes with the operation of compasses in smartphones and GPS navigation. Keep magnets near a smartphone to prevent breaking the sensors.
Flammability
Drilling and cutting of NdFeB material poses a fire risk. Neodymium dust reacts violently 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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