![Magnet for badge UI 33x13x4 [C311] / N38](https://cdn3.dhit.pl/graphics/banners/magnet.webp "Magnet for badge UI 33x13x4 [C311] / N38")
![UI 33x13x4 [C311] / N38 - badge holder](https://cdn3.dhit.pl/graphics/products/ui33x13x4-c311-vub.jpg)
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:
Need more?
Contact us by phone
+48 888 99 98 98
otherwise drop us a message using
request form
the contact section.
Parameters along with structure of neodymium magnets can be analyzed on our
modular calculator.
Orders submitted before 14:00 will be dispatched today!
Technical - 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% |
Ecology and recycling (GPSR)
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
Other offers
Advantages and disadvantages of neodymium magnets.
Strengths
- Their power is durable, and after around ten years it drops only by ~1% (according to research),
- Magnets perfectly defend themselves against loss of magnetization caused by external fields,
- A magnet with a metallic nickel surface looks better,
- Magnetic induction on the top side of the magnet remains exceptional,
- Due to their durability and thermal resistance, neodymium magnets can operate (depending on the shape) even at high temperatures reaching 230°C or more...
- Thanks to modularity in forming and the capacity to modify to complex applications,
- Wide application in innovative solutions – they find application in HDD drives, electromotive mechanisms, medical devices, also modern systems.
- Thanks to efficiency per cm³, small magnets offer high operating force, in miniature format,
Cons
- They are fragile upon heavy impacts. To avoid cracks, it is worth securing magnets in a protective case. 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 recommend our specialized [AH] magnets, which work effectively even at 230°C.
- When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as those in rubber or plastics, which prevent oxidation and corrosion.
- We recommend cover - magnetic holder, due to difficulties in creating nuts inside the magnet and complicated forms.
- Health risk resulting from small fragments of magnets can be dangerous, if swallowed, which is particularly important in the context of child safety. Furthermore, tiny parts of these devices are able to complicate diagnosis medical in case of swallowing.
- With large orders the cost of neodymium magnets is economically unviable,
Pull force analysis
Highest magnetic holding force – what contributes to it?
- with the use of a yoke made of low-carbon steel, guaranteeing full magnetic saturation
- with a cross-section of at least 10 mm
- with a plane free of scratches
- without the slightest insulating layer between the magnet and steel
- during detachment in a direction vertical to the plane
- at temperature approx. 20 degrees Celsius
Magnet lifting force in use – key factors
- Clearance – the presence of any layer (rust, dirt, gap) acts as an insulator, which lowers power rapidly (even by 50% at 0.5 mm).
- Loading method – declared lifting capacity refers to detachment vertically. When slipping, the magnet holds much less (often approx. 20-30% of nominal force).
- Wall thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field passes through the material instead of converting into lifting capacity.
- Chemical composition of the base – mild steel attracts best. Alloy steels reduce magnetic properties and holding force.
- Surface structure – the more even the surface, the larger the contact zone and stronger the hold. Unevenness creates an air distance.
- Temperature – temperature increase results in weakening of induction. Check the thermal limit for a given model.
Lifting capacity testing was performed on a smooth plate of optimal thickness, under perpendicular forces, however under attempts to slide the magnet the lifting capacity is smaller. Moreover, even a minimal clearance between the magnet’s surface and the plate reduces the holding force.
H&S for magnets
Do not underestimate power
Handle with care. Rare earth magnets attract from a long distance and connect with huge force, often quicker than you can react.
Allergy Warning
Some people suffer from a hypersensitivity to nickel, which is the typical protective layer for NdFeB magnets. Extended handling might lead to dermatitis. It is best to use protective gloves.
Demagnetization risk
Regular neodymium magnets (grade N) lose power when the temperature surpasses 80°C. This process is irreversible.
Compass and GPS
A powerful magnetic field interferes with the functioning of magnetometers in smartphones and navigation systems. Maintain magnets near a device to avoid breaking the sensors.
Cards and drives
Device Safety: Neodymium magnets can ruin data carriers and delicate electronics (pacemakers, hearing aids, mechanical watches).
Medical interference
Warning for patients: Powerful magnets affect medical devices. Maintain at least 30 cm distance or ask another person to work with the magnets.
Danger to the youngest
Adult use only. Small elements pose a choking risk, leading to severe trauma. Store away from children and animals.
Bodily injuries
Pinching hazard: The pulling power is so great that it can cause hematomas, pinching, and broken bones. Protective gloves are recommended.
Material brittleness
NdFeB magnets are ceramic materials, which means they are fragile like glass. Collision of two magnets will cause them shattering into shards.
Dust explosion hazard
Fire hazard: Neodymium dust is explosive. Do not process magnets without safety gear as this may cause fire.
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
Rate the product
Your rating