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
Magnetization Direction
↑ axial
Load capacity
29.00 kg / 284.39 N
Coating
[NiCuNi] Nickel
21.49 ZŁ with VAT / pcs + price for transport
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Technical - 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 |
| Magnetization Direction | ↑ axial |
| 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 |
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 |
Other proposals
Pros as well as cons of neodymium magnets.
Advantages
- Their power is durable, and after around 10 years it decreases only by ~1% (theoretically),
- They feature excellent resistance to weakening of magnetic properties when exposed to opposing magnetic fields,
- Thanks to the shimmering finish, the layer of nickel, gold, or silver gives an aesthetic appearance,
- Magnets exhibit exceptionally strong magnetic induction on the working surface,
- Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can work (depending on the shape) even at a temperature of 230°C or more...
- In view of the potential of precise molding and adaptation to specialized projects, magnetic components can be modeled in a wide range of forms and dimensions, which expands the range of possible applications,
- Versatile presence in advanced technology sectors – they are utilized in magnetic memories, electric drive systems, diagnostic systems, also technologically advanced constructions.
- Compactness – despite small sizes they generate large force, making them ideal for precision applications
Disadvantages
- To avoid cracks upon strong impacts, we recommend using special steel housings. Such a solution secures the magnet and simultaneously improves its durability.
- Neodymium magnets decrease their strength 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
- They rust in a humid environment - during use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
- We recommend cover - magnetic holder, due to difficulties in realizing nuts inside the magnet and complex forms.
- Health risk to health – tiny shards of magnets can be dangerous, if swallowed, which gains importance in the context of child health protection. Furthermore, tiny parts of these products can be problematic in diagnostics medical when they are in the body.
- With large orders the cost of neodymium magnets is economically unviable,
Lifting parameters
Maximum magnetic pulling force – what it depends on?
- on a plate made of mild steel, optimally conducting the magnetic flux
- possessing a massiveness of min. 10 mm to avoid saturation
- with an ideally smooth contact surface
- without any insulating layer between the magnet and steel
- during detachment in a direction perpendicular to the plane
- in neutral thermal conditions
Impact of factors on magnetic holding capacity in practice
- Distance – existence of any layer (rust, tape, air) acts as an insulator, which reduces capacity rapidly (even by 50% at 0.5 mm).
- Pull-off angle – note that the magnet has greatest strength perpendicularly. Under sliding down, the holding force drops drastically, often to levels of 20-30% of the maximum value.
- Steel thickness – insufficiently thick sheet does not accept the full field, causing part of the flux to be lost to the other side.
- Chemical composition of the base – mild steel gives the best results. Alloy admixtures lower magnetic properties and lifting capacity.
- Plate texture – smooth surfaces ensure maximum contact, which increases field saturation. Rough surfaces reduce efficiency.
- Temperature – temperature increase results in weakening of force. Check the maximum operating temperature for a given model.
Holding force was measured on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, whereas under attempts to slide the magnet the lifting capacity is smaller. In addition, even a minimal clearance between the magnet and the plate decreases the lifting capacity.
Safe handling of neodymium magnets
Skin irritation risks
Medical facts indicate that nickel (the usual finish) is a potent allergen. If your skin reacts to metals, refrain from touching magnets with bare hands or select encased magnets.
Implant safety
For implant holders: Strong magnetic fields affect medical devices. Maintain minimum 30 cm distance or ask another person to handle the magnets.
Swallowing risk
Always keep magnets away from children. Ingestion danger is significant, and the consequences of magnets clamping inside the body are tragic.
Fire warning
Fire warning: Neodymium dust is highly flammable. Avoid machining magnets in home conditions as this risks ignition.
Bodily injuries
Risk of injury: The attraction force is so great that it can result in hematomas, crushing, and even bone fractures. Protective gloves are recommended.
Beware of splinters
NdFeB magnets are sintered ceramics, which means they are prone to chipping. Collision of two magnets leads to them breaking into shards.
Demagnetization risk
Standard neodymium magnets (grade N) lose power when the temperature surpasses 80°C. Damage is permanent.
Data carriers
Data protection: Strong magnets can ruin payment cards and delicate electronics (heart implants, hearing aids, timepieces).
Powerful field
Before starting, read the rules. Sudden snapping can destroy the magnet or injure your hand. Think ahead.
Magnetic interference
GPS units and mobile phones are highly susceptible to magnetic fields. Close proximity with a strong magnet can decalibrate the internal compass in your phone.
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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