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UI 39x9x7 [BA] - badge holder
badge holder
Catalog no 150340
GTIN/EAN: 5906301813606
length
39 mm [±1 mm]
Width
9 mm [±1 mm]
Height
7 mm [±1 mm]
Weight
1 g
0.923 ZŁ with VAT / pcs + price for transport
0.750 ZŁ net + 23% VAT / pcs
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Technical - UI 39x9x7 [BA] - badge holder
Specification / characteristics - UI 39x9x7 [BA] - badge holder
| properties | values |
|---|---|
| Cat. no. | 150340 |
| GTIN/EAN | 5906301813606 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| length | 39 mm [±1 mm] |
| Width | 9 mm [±1 mm] |
| Height | 7 mm [±1 mm] |
| Weight | 1 g |
| Manufacturing Tolerance | ±1 mm |
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 |
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Pros as well as cons of rare earth magnets.
Strengths
- Their magnetic field is durable, and after approximately ten years it decreases only by ~1% (according to research),
- Magnets perfectly defend themselves against demagnetization caused by external fields,
- The use of an elegant finish of noble metals (nickel, gold, silver) causes the element to present itself better,
- They show high magnetic induction at the operating surface, which affects their effectiveness,
- Thanks to resistance to high temperature, they are capable of working (depending on the shape) even at temperatures up to 230°C and higher...
- Thanks to freedom in designing and the ability to modify to complex applications,
- Universal use in electronics industry – they are utilized in HDD drives, electric drive systems, medical devices, as well as complex engineering applications.
- Relatively small size with high pulling force – neodymium magnets offer high power in compact dimensions, which enables their usage in miniature devices
Weaknesses
- To avoid cracks under impact, we recommend using special steel housings. Such a solution secures the magnet and simultaneously improves its durability.
- Neodymium magnets decrease their force under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
- When exposed to humidity, magnets usually rust. For applications outside, it is recommended to use protective magnets, such as those in rubber or plastics, which prevent oxidation and corrosion.
- We suggest casing - magnetic mechanism, due to difficulties in creating nuts inside the magnet and complex shapes.
- Health risk to health – tiny shards of magnets can be dangerous, when accidentally swallowed, which becomes key in the context of child safety. Furthermore, small components of these devices can disrupt the diagnostic process medical after entering the body.
- High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which increases costs of application in large quantities
Lifting parameters
Breakaway strength of the magnet in ideal conditions – what affects it?
- with the use of a yoke made of low-carbon steel, ensuring full magnetic saturation
- possessing a thickness of minimum 10 mm to avoid saturation
- characterized by even structure
- under conditions of ideal adhesion (metal-to-metal)
- for force acting at a right angle (pull-off, not shear)
- at temperature approx. 20 degrees Celsius
Practical aspects of lifting capacity – factors
- Clearance – existence of foreign body (rust, tape, gap) interrupts the magnetic circuit, which reduces capacity rapidly (even by 50% at 0.5 mm).
- Force direction – declared lifting capacity refers to detachment vertically. When slipping, the magnet holds significantly lower power (often approx. 20-30% of nominal force).
- Metal thickness – thin material does not allow full use of the magnet. Magnetic flux penetrates through instead of converting into lifting capacity.
- Material type – ideal substrate is high-permeability steel. Stainless steels may generate lower lifting capacity.
- Base smoothness – the more even the surface, the larger the contact zone and stronger the hold. Roughness creates an air distance.
- Operating temperature – neodymium magnets have a sensitivity to temperature. When it is hot they are weaker, and at low temperatures gain strength (up to a certain limit).
Holding force was measured on the plate surface of 20 mm thickness, when the force acted perpendicularly, in contrast under parallel forces the load capacity is reduced by as much as 5 times. In addition, even a minimal clearance between the magnet’s surface and the plate reduces the lifting capacity.
Safety rules for work with NdFeB magnets
Heat warning
Monitor thermal conditions. Heating the magnet above 80 degrees Celsius will destroy its magnetic structure and strength.
Flammability
Combustion risk: Neodymium dust is explosive. Do not process magnets without safety gear as this may cause fire.
Life threat
For implant holders: Strong magnetic fields disrupt electronics. Keep minimum 30 cm distance or ask another person to handle the magnets.
Safe operation
Exercise caution. Neodymium magnets act from a long distance and connect with huge force, often faster than you can move away.
Allergic reactions
It is widely known that nickel (standard magnet coating) is a strong allergen. For allergy sufferers, prevent touching magnets with bare hands or choose coated magnets.
Threat to electronics
Avoid bringing magnets close to a wallet, computer, or screen. The magnetic field can irreversibly ruin these devices and erase data from cards.
Adults only
Adult use only. Small elements pose a choking risk, causing intestinal necrosis. Keep away from kids and pets.
Precision electronics
GPS units and mobile phones are highly sensitive to magnetism. Close proximity with a powerful NdFeB magnet can decalibrate the internal compass in your phone.
Bone fractures
Pinching hazard: The pulling power is so immense that it can cause hematomas, crushing, and broken bones. Use thick gloves.
Eye protection
Despite the nickel coating, the material is delicate and cannot withstand shocks. Avoid impacts, as the magnet may shatter into hazardous fragments.
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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