LM TLN - 22 SQ / N38 - magnetic leviton
magnetic leviton
Catalog no 290494
GTIN/EAN: 5906301814528
- Weight
- 1000 g
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Physical properties - 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 |
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% |
Sustainability
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
See also proposals
Advantages and disadvantages of neodymium magnets.
Pros
- They retain full power for nearly ten years – the drop is just ~1% (based on simulations),
- They possess excellent resistance to magnetism drop as a result of external fields,
- A magnet with a metallic gold surface looks better,
- The surface of neodymium magnets generates a intense magnetic field – this is a key feature,
- Thanks to resistance to high temperature, they are able to function (depending on the shape) even at temperatures up to 230°C and higher...
- Thanks to versatility in shaping and the ability to customize to specific needs,
- Wide application in high-tech industry – they are utilized in magnetic memories, electric motors, precision medical tools, as well as industrial machines.
- Relatively small size with high pulling force – neodymium magnets offer high power in small dimensions, which allows their use in miniature devices
Limitations
- At very strong impacts they can break, therefore we recommend placing them in steel cases. A metal housing provides additional protection against damage, as well as increases the magnet's 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 stability even at temperatures up to 230°C
- Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material immune to moisture, when using outdoors
- Due to limitations in creating nuts and complex shapes in magnets, we recommend using a housing - magnetic holder.
- Potential hazard resulting from small fragments of magnets are risky, when accidentally swallowed, which is particularly important in the aspect of protecting the youngest. Additionally, small components of these devices can be problematic in diagnostics medical after entering the body.
- With mass production the cost of neodymium magnets is a challenge,
Pull force analysis
Breakaway strength of the magnet in ideal conditions – what contributes to it?
- on a base made of structural steel, effectively closing the magnetic field
- with a cross-section no less than 10 mm
- characterized by smoothness
- with direct contact (no paint)
- under axial force direction (90-degree angle)
- in neutral thermal conditions
Determinants of practical lifting force of a magnet
- Clearance – the presence of foreign body (paint, dirt, air) acts as an insulator, which reduces power steeply (even by 50% at 0.5 mm).
- Angle of force application – maximum parameter is obtained only during pulling at a 90° angle. The force required to slide of the magnet along the surface is usually several times smaller (approx. 1/5 of the lifting capacity).
- Wall thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field penetrates through instead of generating force.
- Steel type – mild steel gives the best results. Alloy admixtures decrease magnetic properties and holding force.
- Plate texture – ground elements guarantee perfect abutment, which increases field saturation. Uneven metal weaken the grip.
- 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 testing was performed on plates with a smooth surface of suitable thickness, under perpendicular forces, however under shearing force the holding force is lower. Additionally, even a minimal clearance between the magnet and the plate reduces the load capacity.
H&S for magnets
Combustion hazard
Fire hazard: Rare earth powder is explosive. Do not process magnets in home conditions as this risks ignition.
Choking Hazard
Strictly keep magnets away from children. Choking hazard is high, and the effects of magnets clamping inside the body are tragic.
Permanent damage
Standard neodymium magnets (grade N) lose power when the temperature goes above 80°C. This process is irreversible.
Hand protection
Mind your fingers. Two powerful magnets will snap together instantly with a force of massive weight, crushing anything in their path. Exercise extreme caution!
Caution required
Be careful. Rare earth magnets attract from a long distance and connect with massive power, often faster than you can move away.
Data carriers
Intense magnetic fields can destroy records on credit cards, hard drives, and other magnetic media. Maintain a gap of min. 10 cm.
Nickel allergy
Nickel alert: The nickel-copper-nickel coating contains nickel. If an allergic reaction occurs, cease working with magnets and wear gloves.
Warning for heart patients
Individuals with a heart stimulator should keep an absolute distance from magnets. The magnetism can interfere with the operation of the implant.
Eye protection
NdFeB magnets are sintered ceramics, meaning they are very brittle. Clashing of two magnets leads to them cracking into shards.
Precision electronics
Navigation devices and smartphones are highly sensitive to magnetism. Close proximity with a powerful NdFeB magnet can ruin the sensors in your phone.
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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