UMC 32x11/3x8 / N38 - cylindrical magnetic holder
cylindrical magnetic holder
Catalog no 320409
GTIN/EAN: 5906301814658
Diameter
32 mm [±1 mm]
internal diameter Ø
11/3 mm [±1 mm]
Height
8 mm [±1 mm]
Weight
36 g
Load capacity
23.00 kg / 225.55 N
Coating
[NiCuNi] Nickel
17.98 ZŁ with VAT / pcs + price for transport
14.62 ZŁ net + 23% VAT / pcs
bulk discounts:
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Technical parameters - UMC 32x11/3x8 / N38 - cylindrical magnetic holder
Specification / characteristics - UMC 32x11/3x8 / N38 - cylindrical magnetic holder
| properties | values |
|---|---|
| Cat. no. | 320409 |
| GTIN/EAN | 5906301814658 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter | 32 mm [±1 mm] |
| internal diameter Ø | 11/3 mm [±1 mm] |
| Height | 8 mm [±1 mm] |
| Weight | 36 g |
| Load capacity ~ ? | 23.00 kg / 225.55 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 |
See also products
![MPL 40x15x5x2[7/3.5] / N38 - lamellar magnet](https://cdn3.dhit.pl/graphics/products/mpl-40x15x5x27-3.5-cas.jpg "MPL 40x15x5x2[7/3.5] / N38 - lamellar magnet")
Pros as well as cons of Nd2Fe14B magnets.
Strengths
- They do not lose strength, even over approximately ten years – the drop in strength is only ~1% (based on measurements),
- They show high resistance to demagnetization induced by presence of other magnetic fields,
- Thanks to the shimmering finish, the surface of Ni-Cu-Ni, gold, or silver-plated gives an aesthetic appearance,
- The surface of neodymium magnets generates a intense magnetic field – this is a distinguishing feature,
- Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can work (depending on the form) even at a temperature of 230°C or more...
- Considering the option of accurate forming and customization to custom needs, neodymium magnets can be produced in a variety of forms and dimensions, which amplifies use scope,
- Fundamental importance in modern technologies – they are used in computer drives, electric drive systems, precision medical tools, also technologically advanced constructions.
- Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications
Cons
- At very strong impacts they can break, therefore we advise placing them in steel cases. A metal housing provides additional protection against damage, as well as increases the magnet's 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, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
- When exposed to humidity, magnets start to rust. To use them in conditions outside, it is recommended to use protective magnets, such as those in rubber or plastics, which prevent oxidation as well as corrosion.
- We recommend a housing - magnetic mount, due to difficulties in creating nuts inside the magnet and complex forms.
- Health risk resulting from small fragments of magnets can be dangerous, when accidentally swallowed, which becomes key in the context of child safety. Additionally, small components of these products are able to be problematic in diagnostics medical after entering the body.
- Due to complex production process, their price exceeds standard values,
Pull force analysis
Highest magnetic holding force – what affects it?
- on a base made of structural steel, effectively closing the magnetic field
- possessing a massiveness of minimum 10 mm to ensure full flux closure
- characterized by lack of roughness
- with zero gap (without paint)
- during detachment in a direction vertical to the plane
- in stable room temperature
Practical lifting capacity: influencing factors
- Space between magnet and steel – every millimeter of separation (caused e.g. by varnish or unevenness) diminishes the magnet efficiency, often by half at just 0.5 mm.
- Force direction – remember that the magnet has greatest strength perpendicularly. Under sliding down, the holding force drops drastically, often to levels of 20-30% of the nominal value.
- Element thickness – to utilize 100% power, the steel must be adequately massive. Paper-thin metal restricts the lifting capacity (the magnet "punches through" it).
- Material composition – different alloys attracts identically. High carbon content weaken the attraction effect.
- Plate texture – ground elements guarantee perfect abutment, which increases field saturation. Uneven metal weaken the grip.
- Temperature – heating the magnet causes a temporary drop of force. Check the maximum operating temperature for a given model.
Holding force was measured on the plate surface of 20 mm thickness, when a perpendicular force was applied, however under shearing force the lifting capacity is smaller. In addition, even a slight gap between the magnet’s surface and the plate lowers the load capacity.
Precautions when working with neodymium magnets
Immense force
Be careful. Neodymium magnets act from a distance and snap with massive power, often faster than you can move away.
Do not drill into magnets
Powder generated during grinding of magnets is self-igniting. Do not drill into magnets without proper cooling and knowledge.
Data carriers
Intense magnetic fields can destroy records on credit cards, HDDs, and storage devices. Keep a distance of min. 10 cm.
Keep away from electronics
Be aware: neodymium magnets produce a field that interferes with sensitive sensors. Maintain a safe distance from your phone, tablet, and navigation systems.
Health Danger
Patients with a ICD have to keep an absolute distance from magnets. The magnetic field can stop the operation of the implant.
Danger to the youngest
Always store magnets away from children. Risk of swallowing is significant, and the consequences of magnets connecting inside the body are fatal.
Heat sensitivity
Keep cool. NdFeB magnets are sensitive to heat. If you require operation above 80°C, ask us about HT versions (H, SH, UH).
Serious injuries
Danger of trauma: The attraction force is so immense that it can result in hematomas, crushing, and even bone fractures. Use thick gloves.
Material brittleness
NdFeB magnets are sintered ceramics, which means they are prone to chipping. Clashing of two magnets leads to them shattering into shards.
Sensitization to coating
Medical facts indicate that the nickel plating (the usual finish) is a potent allergen. If your skin reacts to metals, avoid touching magnets with bare hands and opt for versions in plastic housing.
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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