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UI 17.5x5 [C310] / N38 - badge holder
badge holder
Catalog no 150261
GTIN/EAN: 5906301813583
Diameter Ø
17.5 mm [±1 mm]
Height
5 mm [±1 mm]
Weight
0.11 g
Load capacity
0.75 kg / 7.35 N
1.316 ZŁ with VAT / pcs + price for transport
1.070 ZŁ net + 23% VAT / pcs
bulk discounts:
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Lifting power as well as structure of neodymium magnets can be reviewed with our
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Technical parameters of the product - UI 17.5x5 [C310] / N38 - badge holder
Specification / characteristics - UI 17.5x5 [C310] / N38 - badge holder
| properties | values |
|---|---|
| Cat. no. | 150261 |
| GTIN/EAN | 5906301813583 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 17.5 mm [±1 mm] |
| Height | 5 mm [±1 mm] |
| Weight | 0.11 g |
| Load capacity ~ ? | 0.75 kg / 7.35 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% |
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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Advantages and disadvantages of Nd2Fe14B magnets.
Strengths
- They have constant strength, and over more than 10 years their attraction force decreases symbolically – ~1% (according to theory),
- They retain their magnetic properties even under close interference source,
- A magnet with a shiny gold surface looks better,
- Neodymium magnets achieve maximum magnetic induction on a small area, which increases force concentration,
- Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the shape) even at high temperatures reaching 230°C or more...
- Possibility of individual shaping and adapting to defined requirements,
- Fundamental importance in modern industrial fields – they are used in magnetic memories, electric motors, medical devices, also other advanced devices.
- Thanks to concentrated force, small magnets offer high operating force, in miniature format,
Cons
- To avoid cracks under impact, we recommend using special steel holders. Such a solution protects the magnet and simultaneously increases its durability.
- We warn that neodymium magnets can lose their strength at high temperatures. To prevent this, we recommend our specialized [AH] magnets, which work effectively even at 230°C.
- When exposed to humidity, magnets usually rust. To use them in conditions outside, it is recommended to use protective magnets, such as those in rubber or plastics, which prevent oxidation and corrosion.
- We recommend a housing - magnetic mechanism, due to difficulties in producing threads inside the magnet and complex forms.
- Potential hazard related to microscopic parts of magnets pose a threat, if swallowed, which gains importance in the aspect of protecting the youngest. Furthermore, small components of these magnets are able to complicate diagnosis medical after entering the body.
- Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications
Holding force characteristics
Detachment force of the magnet in optimal conditions – what affects it?
- using a sheet made of high-permeability steel, serving as a circuit closing element
- whose thickness reaches at least 10 mm
- with a plane cleaned and smooth
- with total lack of distance (without paint)
- during detachment in a direction perpendicular to the mounting surface
- at temperature approx. 20 degrees Celsius
Key elements affecting lifting force
- Gap (between the magnet and the metal), as even a tiny clearance (e.g. 0.5 mm) can cause a decrease in lifting capacity by up to 50% (this also applies to paint, corrosion or dirt).
- Pull-off angle – note that the magnet holds strongest perpendicularly. Under shear forces, the holding force drops significantly, often to levels of 20-30% of the nominal value.
- Plate thickness – insufficiently thick sheet does not close the flux, causing part of the flux to be lost to the other side.
- Metal type – not every steel attracts identically. Alloy additives weaken the interaction with the magnet.
- Plate texture – smooth surfaces ensure maximum contact, which improves force. Uneven metal reduce efficiency.
- Thermal environment – temperature increase results in weakening of force. Check the thermal limit for a given model.
Lifting capacity testing was conducted on plates with a smooth surface of optimal thickness, under perpendicular forces, however under shearing force the lifting capacity is smaller. In addition, even a slight gap between the magnet’s surface and the plate reduces the holding force.
Safety rules for work with neodymium magnets
ICD Warning
For implant holders: Strong magnetic fields affect medical devices. Maintain at least 30 cm distance or ask another person to work with the magnets.
Adults only
Strictly store magnets out of reach of children. Risk of swallowing is significant, and the consequences of magnets connecting inside the body are tragic.
Combustion hazard
Dust generated during cutting of magnets is self-igniting. Avoid drilling into magnets without proper cooling and knowledge.
Pinching danger
Big blocks can break fingers instantly. Never place your hand between two strong magnets.
Allergy Warning
Some people have a contact allergy to nickel, which is the standard coating for NdFeB magnets. Prolonged contact may cause an allergic reaction. We suggest wear safety gloves.
Power loss in heat
Standard neodymium magnets (N-type) lose power when the temperature exceeds 80°C. The loss of strength is permanent.
GPS Danger
Navigation devices and mobile phones are highly sensitive to magnetism. Direct contact with a powerful NdFeB magnet can permanently damage the internal compass in your phone.
Safe distance
Do not bring magnets close to a wallet, computer, or TV. The magnetic field can permanently damage these devices and erase data from cards.
Magnet fragility
Protect your eyes. Magnets can explode upon uncontrolled impact, ejecting sharp fragments into the air. Eye protection is mandatory.
Handling rules
Handle with care. Neodymium magnets act from a long distance and snap with massive power, often faster than you can move away.
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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