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UMGW 48x24x11.5 [M8] GW / N38 - magnetic holder internal thread
magnetic holder internal thread
Catalog no 180418
GTIN/EAN: 5906301813774
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
59.96 ZŁ with VAT / pcs + price for transport
48.75 ZŁ net + 23% VAT / pcs
bulk discounts:
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Detailed specification - UMGW 48x24x11.5 [M8] GW / N38 - magnetic holder internal thread
Specification / characteristics - UMGW 48x24x11.5 [M8] GW / N38 - magnetic holder internal thread
| properties | values |
|---|---|
| Cat. no. | 180418 |
| GTIN/EAN | 5906301813774 |
| 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 |
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 |
Other proposals
Advantages and disadvantages of Nd2Fe14B magnets.
Advantages
- Their magnetic field is durable, and after approximately ten years it decreases only by ~1% (according to research),
- They maintain their magnetic properties even under close interference source,
- In other words, due to the reflective layer of silver, the element becomes visually attractive,
- Magnets exhibit excellent magnetic induction on the working surface,
- Thanks to resistance to high temperature, they are capable of working (depending on the form) even at temperatures up to 230°C and higher...
- Thanks to modularity in constructing and the capacity to adapt to client solutions,
- Huge importance in high-tech industry – they find application in HDD drives, electric drive systems, advanced medical instruments, also complex engineering applications.
- Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in small dimensions, which allows their use in small systems
Disadvantages
- They are fragile upon too strong impacts. To avoid cracks, it is worth protecting magnets in special housings. Such protection not only protects the magnet but also increases its resistance to damage
- NdFeB magnets lose force when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of power (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 extremely 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, when using outdoors
- Due to limitations in producing nuts and complex shapes in magnets, we recommend using cover - magnetic holder.
- Health risk to health – tiny shards of magnets are risky, when accidentally swallowed, which gains importance in the aspect of protecting the youngest. Additionally, small components of these devices can complicate diagnosis medical in case of swallowing.
- Due to expensive raw materials, their price exceeds standard values,
Holding force characteristics
Best holding force of the magnet in ideal parameters – what contributes to it?
- with the application of a sheet made of low-carbon steel, ensuring full magnetic saturation
- possessing a massiveness of at least 10 mm to ensure full flux closure
- with a plane perfectly flat
- with direct contact (without impurities)
- for force acting at a right angle (in the magnet axis)
- at ambient temperature approx. 20 degrees Celsius
What influences lifting capacity in practice
- Space between magnet and steel – even a fraction of a millimeter of separation (caused e.g. by varnish or unevenness) diminishes the pulling force, often by half at just 0.5 mm.
- Angle of force application – maximum parameter is available only during perpendicular pulling. The shear force of the magnet along the surface is usually several times smaller (approx. 1/5 of the lifting capacity).
- Metal thickness – the thinner the sheet, the weaker the hold. Magnetic flux passes through the material instead of converting into lifting capacity.
- Chemical composition of the base – low-carbon steel gives the best results. Alloy admixtures reduce magnetic permeability and lifting capacity.
- Plate texture – smooth surfaces ensure maximum contact, which increases force. Uneven metal weaken the grip.
- Temperature influence – hot environment weakens pulling force. Exceeding the limit temperature can permanently damage the magnet.
Holding force was checked on the plate surface of 20 mm thickness, when the force acted perpendicularly, in contrast under parallel forces the holding force is lower. Additionally, even a slight gap between the magnet’s surface and the plate decreases the load capacity.
Safety rules for work with neodymium magnets
Heat sensitivity
Control the heat. Heating the magnet above 80 degrees Celsius will permanently weaken its magnetic structure and strength.
Do not give to children
NdFeB magnets are not suitable for play. Accidental ingestion of several magnets may result in them connecting inside the digestive tract, which poses a direct threat to life and requires urgent medical intervention.
Immense force
Before starting, check safety instructions. Sudden snapping can break the magnet or injure your hand. Think ahead.
Crushing force
Large magnets can smash fingers instantly. Do not place your hand between two attracting surfaces.
Magnet fragility
Despite metallic appearance, the material is delicate and not impact-resistant. Do not hit, as the magnet may crumble into hazardous fragments.
Implant safety
For implant holders: Strong magnetic fields affect medical devices. Keep at least 30 cm distance or ask another person to work with the magnets.
Nickel coating and allergies
Warning for allergy sufferers: The Ni-Cu-Ni coating contains nickel. If an allergic reaction appears, cease working with magnets and use protective gear.
Threat to electronics
Do not bring magnets close to a wallet, computer, or TV. The magnetic field can destroy these devices and erase data from cards.
GPS Danger
A strong magnetic field negatively affects the operation of magnetometers in phones and navigation systems. Maintain magnets close to a smartphone to prevent damaging the sensors.
Do not drill into magnets
Dust produced during cutting of magnets is self-igniting. Do not drill into magnets without proper cooling and knowledge.
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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