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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Detailed specification - 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% |
Sustainability
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
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Strengths as well as weaknesses of Nd2Fe14B magnets.
Strengths
- Their magnetic field is durable, and after approximately 10 years it drops only by ~1% (theoretically),
- Magnets perfectly defend themselves against loss of magnetization caused by foreign field sources,
- A magnet with a shiny silver surface looks better,
- Magnetic induction on the working part of the magnet turns out to be exceptional,
- Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the form) even at high temperatures reaching 230°C or more...
- Thanks to modularity in forming and the ability to customize to individual projects,
- Key role in high-tech industry – they are commonly used in computer drives, electric drive systems, medical devices, also other advanced devices.
- Compactness – despite small sizes they provide effective action, making them ideal for precision applications
Disadvantages
- They are prone to damage upon heavy impacts. To avoid cracks, it is worth securing magnets in special housings. Such protection not only protects the magnet but also improves its resistance to damage
- We warn that neodymium magnets can lose their strength at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 230°C.
- Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material stable to moisture, in case of application outdoors
- We recommend a housing - magnetic holder, due to difficulties in producing nuts inside the magnet and complex shapes.
- Potential hazard resulting from small fragments of magnets pose a threat, if swallowed, which is particularly important in the aspect of protecting the youngest. It is also worth noting that tiny parts of these magnets are able to be problematic in diagnostics medical in case of swallowing.
- With mass production the cost of neodymium magnets is a challenge,
Lifting parameters
Breakaway strength of the magnet in ideal conditions – what affects it?
- using a sheet made of low-carbon steel, serving as a ideal flux conductor
- whose thickness is min. 10 mm
- with a surface perfectly flat
- with total lack of distance (no impurities)
- for force applied at a right angle (pull-off, not shear)
- in stable room temperature
Lifting capacity in real conditions – factors
- Distance (between the magnet and the plate), because even a tiny distance (e.g. 0.5 mm) leads to a decrease in force by up to 50% (this also applies to paint, rust or debris).
- Force direction – remember that the magnet holds strongest perpendicularly. Under sliding down, the holding force drops drastically, often to levels of 20-30% of the nominal value.
- Wall thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field passes through the material instead of converting into lifting capacity.
- Steel grade – ideal substrate is pure iron steel. Cast iron may have worse magnetic properties.
- Surface finish – full contact is obtained only on smooth steel. Any scratches and bumps reduce the real contact area, weakening the magnet.
- Temperature – heating the magnet causes a temporary drop of force. Check the thermal limit for a given model.
Holding force was measured on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, however under attempts to slide the magnet the holding force is lower. Additionally, even a minimal clearance between the magnet’s surface and the plate decreases the lifting capacity.
H&S for magnets
Do not overheat magnets
Monitor thermal conditions. Heating the magnet to high heat will destroy its properties and strength.
Do not drill into magnets
Dust created during machining of magnets is combustible. Do not drill into magnets unless you are an expert.
Danger to the youngest
Absolutely keep magnets out of reach of children. Ingestion danger is high, and the effects of magnets connecting inside the body are life-threatening.
Safe distance
Intense magnetic fields can erase data on payment cards, HDDs, and storage devices. Stay away of at least 10 cm.
Bodily injuries
Big blocks can smash fingers in a fraction of a second. Under no circumstances place your hand between two attracting surfaces.
Threat to navigation
Navigation devices and mobile phones are highly sensitive to magnetic fields. Close proximity with a powerful NdFeB magnet can ruin the sensors in your phone.
Protective goggles
Watch out for shards. Magnets can explode upon uncontrolled impact, ejecting shards into the air. We recommend safety glasses.
Avoid contact if allergic
Certain individuals have a contact allergy to nickel, which is the typical protective layer for NdFeB magnets. Prolonged contact may cause an allergic reaction. We strongly advise wear protective gloves.
Respect the power
Before use, check safety instructions. Uncontrolled attraction can break the magnet or injure your hand. Be predictive.
ICD Warning
Life threat: Neodymium magnets can deactivate pacemakers and defibrillators. Stay away if you have medical devices.
Tabela kosztu i czasu dostawy
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Płatność przy odbiorze (pobranie):
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23.00 ZŁ
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