LM TLN - 22 SQ / N38 - magnetic leviton
magnetic leviton
Catalog no 290494
GTIN/EAN: 5906301814528
Weight
1000 g
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Detailed specification - LM TLN - 22 SQ / N38 - magnetic leviton
Specification / characteristics - LM TLN - 22 SQ / N38 - magnetic leviton
| properties | values |
|---|---|
| Cat. no. | 290494 |
| GTIN/EAN | 5906301814528 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Weight | 1000 g |
| 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% |
Sustainability
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
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Pros and cons of neodymium magnets.
Strengths
- They do not lose power, even over approximately 10 years – the drop in lifting capacity is only ~1% (based on measurements),
- Neodymium magnets remain exceptionally resistant to loss of magnetic properties caused by external field sources,
- By applying a smooth coating of nickel, the element gains an elegant look,
- The surface of neodymium magnets generates a maximum magnetic field – this is a key feature,
- Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and are able to act (depending on the shape) even at a temperature of 230°C or more...
- Possibility of precise modeling as well as optimizing to complex applications,
- Versatile presence in modern technologies – they are used in hard drives, motor assemblies, advanced medical instruments, and modern systems.
- Thanks to efficiency per cm³, small magnets offer high operating force, with minimal size,
Cons
- To avoid cracks under impact, we suggest using special steel holders. Such a solution secures the magnet and simultaneously improves its durability.
- When exposed to high temperature, neodymium magnets experience a drop in strength. Often, when the temperature exceeds 80°C, their power decreases (depending on the size and shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
- Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material immune to moisture, when using outdoors
- Limited ability of creating threads in the magnet and complicated forms - recommended is cover - magnet mounting.
- Possible danger related to microscopic parts of magnets are risky, when accidentally swallowed, which becomes key in the aspect of protecting the youngest. It is also worth noting that tiny parts of these magnets can complicate diagnosis medical when they are in the body.
- Due to complex production process, their price exceeds standard values,
Holding force characteristics
Optimal lifting capacity of a neodymium magnet – what contributes to it?
- using a base made of high-permeability steel, serving as a circuit closing element
- whose thickness equals approx. 10 mm
- with an ideally smooth contact surface
- with total lack of distance (no paint)
- for force applied at a right angle (in the magnet axis)
- at temperature approx. 20 degrees Celsius
Magnet lifting force in use – key factors
- Distance (betwixt the magnet and the plate), as even a very small clearance (e.g. 0.5 mm) can cause a decrease in lifting capacity by up to 50% (this also applies to varnish, corrosion or dirt).
- Force direction – note that the magnet has greatest strength perpendicularly. Under sliding down, the capacity drops drastically, often to levels of 20-30% of the maximum value.
- Metal thickness – the thinner the sheet, the weaker the hold. Magnetic flux penetrates through instead of converting into lifting capacity.
- Material composition – not every steel attracts identically. High carbon content weaken the attraction effect.
- Surface quality – the smoother and more polished the surface, the better the adhesion and higher the lifting capacity. Roughness creates an air distance.
- Thermal conditions – neodymium magnets have a sensitivity to temperature. At higher temperatures they are weaker, and in frost gain strength (up to a certain limit).
Lifting capacity was assessed with the use of a steel plate with a smooth surface of suitable thickness (min. 20 mm), under perpendicular pulling force, whereas under parallel forces the load capacity is reduced by as much as fivefold. In addition, even a slight gap between the magnet’s surface and the plate decreases the holding force.
H&S for magnets
Danger to the youngest
Absolutely store magnets away from children. Risk of swallowing is high, and the effects of magnets connecting inside the body are life-threatening.
Health Danger
Warning for patients: Powerful magnets disrupt medical devices. Maintain at least 30 cm distance or request help to handle the magnets.
Respect the power
Before starting, read the rules. Uncontrolled attraction can destroy the magnet or injure your hand. Think ahead.
Machining danger
Fire hazard: Rare earth powder is explosive. Avoid machining magnets in home conditions as this risks ignition.
Thermal limits
Keep cool. NdFeB magnets are sensitive to temperature. If you need resistance above 80°C, look for HT versions (H, SH, UH).
Magnet fragility
Despite metallic appearance, neodymium is delicate and not impact-resistant. Avoid impacts, as the magnet may shatter into hazardous fragments.
Keep away from electronics
Navigation devices and smartphones are extremely sensitive to magnetic fields. Direct contact with a powerful NdFeB magnet can permanently damage the sensors in your phone.
Allergy Warning
Certain individuals experience a hypersensitivity to nickel, which is the common plating for NdFeB magnets. Prolonged contact may cause dermatitis. We recommend use safety gloves.
Data carriers
Do not bring magnets near a wallet, computer, or screen. The magnetic field can permanently damage these devices and erase data from cards.
Hand protection
Watch your fingers. Two large magnets will snap together immediately with a force of massive weight, destroying everything in their path. Be careful!
Tabela kosztu i czasu dostawy
Płatność przed wysyłką:
GLS kurier
Przesyłka będzie u Ciebie za 2-3 dni
14.99 ZŁ
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12.30 ZŁ
Płatność przy odbiorze (pobranie):
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Przesyłka będzie u Ciebie za 1-2 dni
23.00 ZŁ
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