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UMGZ 48x24x11.5 [M8] GZ / N38 - magnetic holder external thread
magnetic holder external thread
Catalog no 190415
GTIN/EAN: 5906301813866
Diameter Ø
48 mm [±1 mm]
Height
24 mm [±1 mm]
Height
11.5 mm [±1 mm]
Weight
140 g
Load capacity
80.00 kg / 784.53 N
59.90 ZŁ with VAT / pcs + price for transport
48.70 ZŁ net + 23% VAT / pcs
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Physical properties - UMGZ 48x24x11.5 [M8] GZ / N38 - magnetic holder external thread
Specification / characteristics - UMGZ 48x24x11.5 [M8] GZ / N38 - magnetic holder external thread
| properties | values |
|---|---|
| Cat. no. | 190415 |
| GTIN/EAN | 5906301813866 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 48 mm [±1 mm] |
| Height | 24 mm [±1 mm] |
| Height | 11.5 mm [±1 mm] |
| Weight | 140 g |
| Load capacity ~ ? | 80.00 kg / 784.53 N |
| 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 |
Elemental analysis
| 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 |
Other offers
Advantages and disadvantages of Nd2Fe14B magnets.
Benefits
- Their strength is maintained, and after approximately ten years it drops only by ~1% (according to research),
- They have excellent resistance to magnetism drop as a result of opposing magnetic fields,
- The use of an metallic finish of noble metals (nickel, gold, silver) causes the element to look better,
- The surface of neodymium magnets generates a maximum magnetic field – this is a distinguishing feature,
- 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...
- Thanks to freedom in designing and the ability to customize to individual projects,
- Versatile presence in innovative solutions – they are used in HDD drives, electromotive mechanisms, medical devices, also modern systems.
- Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications
Weaknesses
- They are prone to damage upon too strong impacts. To avoid cracks, it is worth securing magnets using a steel holder. Such protection not only protects the magnet but also improves its resistance to damage
- When exposed to high temperature, neodymium magnets suffer a drop in force. Often, when the temperature exceeds 80°C, their power decreases (depending on the size and 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 usually rust. To use them in conditions outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which prevent oxidation as well as corrosion.
- Limited possibility of producing threads in the magnet and complex shapes - preferred is a housing - magnetic holder.
- Health risk to health – tiny shards of magnets can be dangerous, in case of ingestion, which becomes key in the context of child health protection. Additionally, small elements of these products are able to be problematic in diagnostics medical after entering the body.
- Due to complex production process, their price is higher than average,
Lifting parameters
Maximum lifting force for a neodymium magnet – what it depends on?
- using a sheet made of low-carbon steel, functioning as a magnetic yoke
- whose transverse dimension reaches at least 10 mm
- with a plane free of scratches
- under conditions of no distance (surface-to-surface)
- for force applied at a right angle (pull-off, not shear)
- at room temperature
Lifting capacity in practice – influencing factors
- Clearance – existence of any layer (rust, dirt, air) acts as an insulator, which lowers capacity rapidly (even by 50% at 0.5 mm).
- Direction of force – highest force is reached only during pulling at a 90° angle. The shear force of the magnet along the surface is usually many times lower (approx. 1/5 of the lifting capacity).
- Element thickness – for full efficiency, the steel must be sufficiently thick. Paper-thin metal restricts the attraction force (the magnet "punches through" it).
- Plate material – low-carbon steel attracts best. Alloy steels decrease magnetic properties and holding force.
- Smoothness – full contact is obtained only on polished steel. Any scratches and bumps create air cushions, weakening the magnet.
- Temperature – temperature increase results in weakening of induction. It is worth remembering the maximum operating temperature for a given model.
Holding force was tested on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, whereas under shearing force the load capacity is reduced by as much as 5 times. Moreover, even a small distance between the magnet and the plate lowers the load capacity.
Precautions when working with NdFeB magnets
GPS and phone interference
An intense magnetic field disrupts the functioning of magnetometers in phones and navigation systems. Do not bring magnets near a smartphone to avoid breaking the sensors.
Heat sensitivity
Avoid heat. Neodymium magnets are susceptible to heat. If you require resistance above 80°C, inquire about HT versions (H, SH, UH).
Crushing force
Big blocks can crush fingers instantly. Do not put your hand betwixt two strong magnets.
Product not for children
These products are not toys. Accidental ingestion of a few magnets can lead to them attracting across intestines, which poses a direct threat to life and requires urgent medical intervention.
Machining danger
Fire hazard: Neodymium dust is highly flammable. Avoid machining magnets without safety gear as this risks ignition.
Danger to pacemakers
Medical warning: Strong magnets can turn off pacemakers and defibrillators. Stay away if you have electronic implants.
Electronic hazard
Do not bring magnets close to a wallet, computer, or screen. The magnetism can irreversibly ruin these devices and erase data from cards.
Beware of splinters
Despite the nickel coating, the material is brittle and cannot withstand shocks. Avoid impacts, as the magnet may crumble into hazardous fragments.
Avoid contact if allergic
It is widely known that nickel (the usual finish) is a potent allergen. If your skin reacts to metals, refrain from direct skin contact and select coated magnets.
Do not underestimate power
Use magnets with awareness. Their powerful strength can shock even experienced users. Stay alert and respect their force.
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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