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UI 33x13x4 [C311] / N38 - badge holder
badge holder
Catalog no 150207
GTIN/EAN: 5906301813545
length
33 mm [±1 mm]
Width
13 mm [±1 mm]
Height
4 mm [±1 mm]
Weight
0.21 g
Load capacity
1.80 kg / 17.65 N
2.40 ZŁ with VAT / pcs + price for transport
1.950 ZŁ net + 23% VAT / pcs
bulk discounts:
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Technical details - UI 33x13x4 [C311] / N38 - badge holder
Specification / characteristics - UI 33x13x4 [C311] / N38 - badge holder
| properties | values |
|---|---|
| Cat. no. | 150207 |
| GTIN/EAN | 5906301813545 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| length | 33 mm [±1 mm] |
| Width | 13 mm [±1 mm] |
| Height | 4 mm [±1 mm] |
| Weight | 0.21 g |
| Load capacity ~ ? | 1.80 kg / 17.65 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 |
Material specification
| 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 and weaknesses of neodymium magnets.
Advantages
- Their magnetic field is durable, and after approximately 10 years it decreases only by ~1% (theoretically),
- Neodymium magnets prove to be remarkably resistant to demagnetization caused by external interference,
- A magnet with a metallic gold surface has an effective appearance,
- The surface of neodymium magnets generates a powerful magnetic field – this is a distinguishing feature,
- Due to their durability and thermal resistance, neodymium magnets can operate (depending on the form) even at high temperatures reaching 230°C or more...
- Possibility of exact creating as well as modifying to atypical applications,
- Wide application in modern technologies – they find application in data components, electric motors, diagnostic systems, as well as complex engineering applications.
- Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in small dimensions, which enables their usage in miniature devices
Disadvantages
- Brittleness is one of their disadvantages. Upon intense impact they can break. We advise keeping them in a steel housing, which not only protects them against impacts but also increases their durability
- Neodymium magnets lose 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
- They rust in a humid environment - during use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
- Limited ability of making threads in the magnet and complex shapes - preferred is cover - magnet mounting.
- Potential hazard to health – tiny shards of magnets pose a threat, if swallowed, which is particularly important in the context of child health protection. Furthermore, small elements of these products are able to be problematic in diagnostics medical when they are in the body.
- With mass production the cost of neodymium magnets can be a barrier,
Pull force analysis
Breakaway strength of the magnet in ideal conditions – what it depends on?
- using a base made of high-permeability steel, serving as a magnetic yoke
- whose transverse dimension reaches at least 10 mm
- with an ideally smooth contact surface
- under conditions of ideal adhesion (surface-to-surface)
- under perpendicular force direction (90-degree angle)
- at ambient temperature approx. 20 degrees Celsius
Determinants of lifting force in real conditions
- Distance (betwixt the magnet and the metal), because even a tiny clearance (e.g. 0.5 mm) results in a drastic drop in force by up to 50% (this also applies to paint, rust or debris).
- Angle of force application – highest force is available only during perpendicular pulling. The resistance to sliding of the magnet along the surface is usually many times lower (approx. 1/5 of the lifting capacity).
- Wall thickness – the thinner the sheet, the weaker the hold. Magnetic flux penetrates through instead of generating force.
- Material type – ideal substrate is pure iron steel. Hardened steels may attract less.
- Surface condition – ground elements ensure maximum contact, which increases field saturation. Rough surfaces weaken the grip.
- Temperature – heating the magnet causes a temporary drop of induction. It is worth remembering the thermal limit for a given model.
Lifting capacity was determined using a polished steel plate of optimal thickness (min. 20 mm), under vertically applied force, in contrast under shearing force the holding force is lower. Moreover, even a slight gap between the magnet and the plate decreases the lifting capacity.
Warnings
Respect the power
Before starting, read the rules. Sudden snapping can break the magnet or hurt your hand. Be predictive.
GPS Danger
Navigation devices and smartphones are extremely sensitive to magnetic fields. Close proximity with a strong magnet can decalibrate the sensors in your phone.
Demagnetization risk
Control the heat. Heating the magnet to high heat will destroy its properties and pulling force.
Finger safety
Large magnets can crush fingers in a fraction of a second. Do not place your hand between two strong magnets.
Magnet fragility
Despite the nickel coating, the material is delicate and cannot withstand shocks. Avoid impacts, as the magnet may crumble into hazardous fragments.
Sensitization to coating
Warning for allergy sufferers: The nickel-copper-nickel coating consists of nickel. If an allergic reaction happens, immediately stop working with magnets and wear gloves.
Do not drill into magnets
Machining of NdFeB material poses a fire hazard. Neodymium dust reacts violently with oxygen and is difficult to extinguish.
Adults only
Absolutely store magnets away from children. Ingestion danger is significant, and the effects of magnets connecting inside the body are very dangerous.
Medical interference
Health Alert: Strong magnets can deactivate heart devices and defibrillators. Stay away if you have medical devices.
Electronic devices
Device Safety: Strong magnets can ruin data carriers and delicate electronics (heart implants, hearing aids, timepieces).
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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