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
Magnetization Direction
↑ axial
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
bulk discounts:
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Strength along with form of neodymium magnets can be verified with our
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Detailed specification - 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 |
| Magnetization Direction | ↑ axial |
| 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 |
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 |
Other proposals
![UMH 75x18x68 [M8] / N38 - magnetic holder with hook](https://cdn3.dhit.pl/graphics/products/umh-75x18x68-m8-wag.jpg "UMH 75x18x68 [M8] / N38 - magnetic holder with hook")
Strengths and weaknesses of neodymium magnets.
Advantages
- Their power is maintained, and after around ten years it decreases only by ~1% (according to research),
- They do not lose their magnetic properties even under external field action,
- By using a reflective layer of nickel, the element gains an professional look,
- They are known for high magnetic induction at the operating surface, which affects their effectiveness,
- Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
- Due to the ability of free forming and customization to unique projects, NdFeB magnets can be created in a broad palette of shapes and sizes, which expands the range of possible applications,
- Universal use in electronics industry – they serve a role in computer drives, electric drive systems, diagnostic systems, as well as industrial machines.
- Compactness – despite small sizes they provide effective action, making them ideal for precision applications
Limitations
- Brittleness is one of their disadvantages. Upon strong impact they can break. We recommend keeping them in a strong case, which not only secures them against impacts but also increases their durability
- Neodymium magnets lose force 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
- Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material stable to moisture, in case of application outdoors
- Due to limitations in producing threads and complicated forms in magnets, we recommend using cover - magnetic holder.
- Potential hazard to health – tiny shards of magnets are risky, in case of ingestion, which is particularly important in the aspect of protecting the youngest. It is also worth noting that small components of these devices are able to complicate diagnosis medical when they are in the body.
- With large orders the cost of neodymium magnets is a challenge,
Lifting parameters
Best holding force of the magnet in ideal parameters – what it depends on?
- using a plate made of low-carbon steel, functioning as a magnetic yoke
- whose transverse dimension reaches at least 10 mm
- with an ground contact surface
- with total lack of distance (without paint)
- during detachment in a direction vertical to the mounting surface
- at conditions approx. 20°C
Impact of factors on magnetic holding capacity in practice
- Gap (betwixt the magnet and the plate), since even a tiny clearance (e.g. 0.5 mm) results in a reduction in lifting capacity by up to 50% (this also applies to paint, corrosion or dirt).
- Force direction – catalog parameter refers to pulling vertically. When attempting to slide, the magnet exhibits significantly lower power (typically approx. 20-30% of maximum force).
- Metal thickness – the thinner the sheet, the weaker the hold. Magnetic flux passes through the material instead of converting into lifting capacity.
- Plate material – mild steel attracts best. Higher carbon content lower magnetic permeability and lifting capacity.
- Plate texture – smooth surfaces guarantee perfect abutment, which increases force. Uneven metal reduce efficiency.
- Thermal conditions – neodymium magnets have a sensitivity to temperature. When it is hot they are weaker, and at low temperatures they can be stronger (up to a certain limit).
Holding force was checked on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, in contrast under parallel forces the holding force is lower. In addition, even a small distance between the magnet and the plate lowers the holding force.
Warnings
Product not for children
Neodymium magnets are not intended for children. Accidental ingestion of several magnets can lead to them pinching intestinal walls, which constitutes a severe health hazard and necessitates immediate surgery.
Crushing force
Pinching hazard: The attraction force is so great that it can cause hematomas, pinching, and even bone fractures. Use thick gloves.
Permanent damage
Monitor thermal conditions. Heating the magnet above 80 degrees Celsius will ruin its magnetic structure and pulling force.
Flammability
Dust generated during cutting of magnets is self-igniting. Do not drill into magnets without proper cooling and knowledge.
Powerful field
Before use, read the rules. Sudden snapping can break the magnet or injure your hand. Be predictive.
Threat to electronics
Intense magnetic fields can corrupt files on payment cards, HDDs, and other magnetic media. Keep a distance of at least 10 cm.
Medical implants
People with a heart stimulator should keep an safe separation from magnets. The magnetic field can disrupt the operation of the implant.
GPS and phone interference
GPS units and smartphones are extremely sensitive to magnetic fields. Close proximity with a strong magnet can permanently damage the sensors in your phone.
Skin irritation risks
A percentage of the population suffer from a hypersensitivity to nickel, which is the typical protective layer for neodymium magnets. Prolonged contact may cause an allergic reaction. We recommend use protective gloves.
Eye protection
Watch out for shards. Magnets can explode upon violent connection, launching shards into the air. Eye protection is mandatory.
Tabela kosztu i czasu dostawy
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