LM TLN - 22 SQ / N38 - magnetic leviton
magnetic leviton
Catalog no 290494
GTIN/EAN: 5906301814528
Weight
1000 g
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Technical - 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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Advantages and disadvantages of Nd2Fe14B magnets.
Strengths
- They retain full power for almost ten years – the loss is just ~1% (according to analyses),
- They have excellent resistance to weakening of magnetic properties due to external magnetic sources,
- The use of an shiny coating of noble metals (nickel, gold, silver) causes the element to look better,
- Neodymium magnets achieve maximum magnetic induction on a small surface, which allows for strong attraction,
- Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
- Possibility of individual creating and adapting to atypical needs,
- Universal use in modern technologies – they serve a role in data components, motor assemblies, diagnostic systems, and modern systems.
- Compactness – despite small sizes they generate large force, making them ideal for precision applications
Disadvantages
- At strong impacts they can crack, therefore we recommend placing them in strong housings. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
- When exposed to high temperature, neodymium magnets experience a drop in power. Often, when the temperature exceeds 80°C, their power decreases (depending on the size, as well as 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 stable to moisture, when using outdoors
- Limited ability of creating nuts in the magnet and complicated forms - preferred is cover - magnetic holder.
- Potential hazard resulting from small fragments of magnets pose a threat, in case of ingestion, which becomes key in the aspect of protecting the youngest. Additionally, small components of these devices can disrupt the diagnostic process medical after entering the body.
- With large orders the cost of neodymium magnets is a challenge,
Lifting parameters
Maximum lifting force for a neodymium magnet – what it depends on?
- using a sheet made of high-permeability steel, functioning as a circuit closing element
- with a cross-section minimum 10 mm
- with an polished touching surface
- under conditions of no distance (surface-to-surface)
- under axial application of breakaway force (90-degree angle)
- in neutral thermal conditions
Key elements affecting lifting force
- Gap between surfaces – every millimeter of separation (caused e.g. by varnish or dirt) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
- Load vector – highest force is available only during perpendicular pulling. The shear force of the magnet along the surface is typically several times lower (approx. 1/5 of the lifting capacity).
- Steel thickness – insufficiently thick sheet does not accept the full field, causing part of the power to be wasted into the air.
- Chemical composition of the base – mild steel attracts best. Alloy steels reduce magnetic properties and lifting capacity.
- Surface condition – ground elements ensure maximum contact, which increases field saturation. Uneven metal weaken the grip.
- Thermal factor – high temperature weakens pulling force. Exceeding the limit temperature can permanently demagnetize the magnet.
Lifting capacity testing was carried out on a smooth plate of suitable thickness, under a perpendicular pulling force, whereas under parallel forces the holding force is lower. Additionally, even a minimal clearance between the magnet’s surface and the plate reduces the lifting capacity.
Safe handling of neodymium magnets
Magnet fragility
Despite the nickel coating, neodymium is brittle and cannot withstand shocks. Do not hit, as the magnet may shatter into hazardous fragments.
Impact on smartphones
GPS units and smartphones are highly sensitive to magnetic fields. Direct contact with a strong magnet can decalibrate the sensors in your phone.
Dust explosion hazard
Powder generated during cutting of magnets is combustible. Avoid drilling into magnets unless you are an expert.
Cards and drives
Powerful magnetic fields can corrupt files on credit cards, HDDs, and storage devices. Stay away of at least 10 cm.
Adults only
Always store magnets out of reach of children. Risk of swallowing is significant, and the consequences of magnets clamping inside the body are tragic.
Physical harm
Watch your fingers. Two powerful magnets will join instantly with a force of several hundred kilograms, crushing everything in their path. Be careful!
Handling rules
Use magnets consciously. Their powerful strength can surprise even professionals. Be vigilant and respect their force.
Do not overheat magnets
Avoid heat. Neodymium magnets are sensitive to heat. If you require resistance above 80°C, look for HT versions (H, SH, UH).
ICD Warning
Health Alert: Strong magnets can turn off heart devices and defibrillators. Do not approach if you have electronic implants.
Allergy Warning
It is widely known that the nickel plating (standard magnet coating) is a strong allergen. If your skin reacts to metals, avoid direct skin contact and opt for versions in plastic housing.
Tabela kosztu i czasu dostawy
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