UMC 75x11/6x18 / N38 - cylindrical magnetic holder
cylindrical magnetic holder
Catalog no 320414
GTIN/EAN: 5906301814702
Diameter
75 mm [±1 mm]
internal diameter Ø
11/6 mm [±1 mm]
Height
18 mm [±1 mm]
Weight
465 g
Load capacity
155.00 kg / 1520.03 N
Coating
[NiCuNi] Nickel
169.86 ZŁ with VAT / pcs + price for transport
138.10 ZŁ net + 23% VAT / pcs
bulk discounts:
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Product card - UMC 75x11/6x18 / N38 - cylindrical magnetic holder
Specification / characteristics - UMC 75x11/6x18 / N38 - cylindrical magnetic holder
| properties | values |
|---|---|
| Cat. no. | 320414 |
| GTIN/EAN | 5906301814702 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter | 75 mm [±1 mm] |
| internal diameter Ø | 11/6 mm [±1 mm] |
| Height | 18 mm [±1 mm] |
| Weight | 465 g |
| Load capacity ~ ? | 155.00 kg / 1520.03 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 |
View also proposals
![SM 32x450 [2xM8] / N42 - magnetic separator](https://cdn3.dhit.pl/graphics/products/sm-32x450-2xm8-bex.jpg "SM 32x450 [2xM8] / N42 - magnetic separator")
Strengths and weaknesses of Nd2Fe14B magnets.
Advantages
- They virtually do not lose strength, because even after ten years the performance loss is only ~1% (in laboratory conditions),
- They are resistant to demagnetization induced by external field influence,
- The use of an metallic layer of noble metals (nickel, gold, silver) causes the element to look better,
- The surface of neodymium magnets generates a strong magnetic field – this is a key feature,
- Through (adequate) combination of ingredients, they can achieve high thermal strength, allowing for action at temperatures reaching 230°C and above...
- Thanks to versatility in constructing and the ability to adapt to unusual requirements,
- Key role in high-tech industry – they are commonly used in mass storage devices, drive modules, advanced medical instruments, and complex engineering applications.
- Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in small dimensions, which makes them useful in miniature devices
Limitations
- Susceptibility to cracking 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 raises their durability
- Neodymium magnets lose 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
- Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material resistant to moisture, when using outdoors
- We suggest cover - magnetic mechanism, due to difficulties in producing threads inside the magnet and complex shapes.
- Possible danger to health – tiny shards of magnets pose a threat, when accidentally swallowed, which becomes key in the context of child safety. Additionally, small components of these magnets can be problematic in diagnostics medical when they are in the body.
- Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications
Holding force characteristics
Best holding force of the magnet in ideal parameters – what it depends on?
- with the use of a sheet made of special test steel, guaranteeing full magnetic saturation
- with a cross-section of at least 10 mm
- with a plane perfectly flat
- with total lack of distance (without paint)
- under perpendicular application of breakaway force (90-degree angle)
- in stable room temperature
What influences lifting capacity in practice
- Space between magnet and steel – every millimeter of distance (caused e.g. by varnish or dirt) diminishes the pulling force, often by half at just 0.5 mm.
- Angle of force application – maximum parameter is reached only during pulling at a 90° angle. The resistance to sliding of the magnet along the surface is standardly several times smaller (approx. 1/5 of the lifting capacity).
- Substrate thickness – to utilize 100% power, the steel must be adequately massive. Thin sheet restricts the attraction force (the magnet "punches through" it).
- Material type – ideal substrate is high-permeability steel. Cast iron may generate lower lifting capacity.
- Surface condition – ground elements ensure maximum contact, which improves field saturation. Rough surfaces weaken the grip.
- Thermal factor – high temperature weakens magnetic field. Exceeding the limit temperature can permanently demagnetize the magnet.
Lifting capacity testing was performed on plates with a smooth surface of optimal thickness, under a perpendicular pulling force, however under attempts to slide the magnet the holding force is lower. In addition, even a small distance between the magnet’s surface and the plate lowers the load capacity.
H&S for magnets
Fire warning
Fire warning: Neodymium dust is highly flammable. Avoid machining magnets in home conditions as this risks ignition.
Pacemakers
People with a pacemaker have to keep an safe separation from magnets. The magnetic field can stop the operation of the implant.
Nickel coating and allergies
Nickel alert: The Ni-Cu-Ni coating contains nickel. If an allergic reaction happens, cease handling magnets and wear gloves.
Magnet fragility
Despite the nickel coating, the material is brittle and not impact-resistant. Avoid impacts, as the magnet may crumble into sharp, dangerous pieces.
Bodily injuries
Big blocks can break fingers in a fraction of a second. Under no circumstances place your hand betwixt two attracting surfaces.
Danger to the youngest
These products are not toys. Accidental ingestion of a few magnets may result in them connecting inside the digestive tract, which constitutes a severe health hazard and requires urgent medical intervention.
Precision electronics
Be aware: rare earth magnets generate a field that interferes with precision electronics. Maintain a separation from your phone, device, and GPS.
Protect data
Do not bring magnets close to a purse, computer, or TV. The magnetism can permanently damage these devices and wipe information from cards.
Do not overheat magnets
Regular neodymium magnets (N-type) lose power when the temperature surpasses 80°C. Damage is permanent.
Handling rules
Use magnets with awareness. Their powerful strength can surprise even experienced users. Stay alert and respect their power.
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
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Płatność przy odbiorze (pobranie):
GLS kurier
Przesyłka będzie u Ciebie za 1-2 dni
23.00 ZŁ
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