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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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Technical - 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 |
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% |
Environmental data
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
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Strengths as well as weaknesses of Nd2Fe14B magnets.
Benefits
- They retain magnetic properties for nearly ten years – the loss is just ~1% (based on simulations),
- They have excellent resistance to magnetism drop due to opposing magnetic fields,
- The use of an aesthetic finish of noble metals (nickel, gold, silver) causes the element to look better,
- Neodymium magnets ensure maximum magnetic induction on a their surface, which increases force concentration,
- Thanks to resistance to high temperature, they can operate (depending on the shape) even at temperatures up to 230°C and higher...
- Thanks to versatility in shaping and the capacity to customize to complex applications,
- Versatile presence in high-tech industry – they are used in mass storage devices, electric motors, precision medical tools, and complex engineering applications.
- Thanks to concentrated force, small magnets offer high operating force, occupying minimum space,
Cons
- 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 shields the magnet but also improves its resistance to damage
- We warn that neodymium magnets can lose their strength at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 230°C.
- They oxidize in a humid environment. For use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
- We suggest cover - magnetic mechanism, due to difficulties in creating nuts inside the magnet and complicated forms.
- Possible danger resulting from small fragments of magnets are risky, when accidentally swallowed, which becomes key in the aspect of protecting the youngest. Furthermore, small components of these devices are able to be problematic in diagnostics medical after entering the body.
- With large orders the cost of neodymium magnets can be a barrier,
Holding force characteristics
Highest magnetic holding force – what contributes to it?
- using a sheet made of high-permeability steel, acting as a circuit closing element
- possessing a thickness of at least 10 mm to ensure full flux closure
- characterized by lack of roughness
- without any air gap between the magnet and steel
- for force applied at a right angle (in the magnet axis)
- in temp. approx. 20°C
Practical aspects of lifting capacity – factors
- Gap between magnet and steel – every millimeter of separation (caused e.g. by varnish or unevenness) drastically reduces the pulling force, often by half at just 0.5 mm.
- Pull-off angle – remember that the magnet holds strongest perpendicularly. Under sliding down, the holding force drops drastically, often to levels of 20-30% of the nominal value.
- Base massiveness – too thin plate causes magnetic saturation, causing part of the flux to be wasted into the air.
- Steel type – mild steel attracts best. Alloy admixtures decrease magnetic permeability and lifting capacity.
- Surface condition – smooth surfaces ensure maximum contact, which improves field saturation. Uneven metal reduce efficiency.
- Thermal factor – hot environment reduces magnetic field. Exceeding the limit temperature can permanently damage the magnet.
Lifting capacity was measured by applying a smooth steel plate of suitable thickness (min. 20 mm), under perpendicular pulling force, however under parallel forces the lifting capacity is smaller. In addition, even a minimal clearance between the magnet and the plate decreases the lifting capacity.
Precautions when working with NdFeB magnets
Operating temperature
Regular neodymium magnets (grade N) undergo demagnetization when the temperature goes above 80°C. The loss of strength is permanent.
Warning for allergy sufferers
Allergy Notice: The nickel-copper-nickel coating contains nickel. If skin irritation happens, cease handling magnets and use protective gear.
Phone sensors
GPS units and mobile phones are extremely susceptible to magnetic fields. Close proximity with a strong magnet can ruin the internal compass in your phone.
Conscious usage
Use magnets with awareness. Their huge power can surprise even professionals. Stay alert and do not underestimate their power.
Adults only
Adult use only. Small elements pose a choking risk, leading to serious injuries. Store away from children and animals.
Beware of splinters
Protect your eyes. Magnets can fracture upon uncontrolled impact, ejecting sharp fragments into the air. We recommend safety glasses.
Finger safety
Pinching hazard: The attraction force is so immense that it can result in hematomas, pinching, and even bone fractures. Use thick gloves.
Flammability
Drilling and cutting of NdFeB material carries a risk of fire hazard. Magnetic powder oxidizes rapidly with oxygen and is hard to extinguish.
Life threat
Warning for patients: Strong magnetic fields disrupt electronics. Keep at least 30 cm distance or request help to work with the magnets.
Electronic devices
Equipment safety: Neodymium magnets can ruin data carriers and sensitive devices (heart implants, hearing aids, mechanical watches).
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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