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SM 18x275 [2xM5] / N42 - magnetic separator
magnetic separator
Catalog no 130276
GTIN/EAN: 5906301812784
Diameter Ø
18 mm [±1 mm]
Height
275 mm [±1 mm]
Weight
0.01 g
Magnetic Flux
~ 5 400 Gauss [±5%]
608.85 ZŁ with VAT / pcs + price for transport
495.00 ZŁ net + 23% VAT / pcs
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Product card - SM 18x275 [2xM5] / N42 - magnetic separator
Specification / characteristics - SM 18x275 [2xM5] / N42 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130276 |
| GTIN/EAN | 5906301812784 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 18 mm [±1 mm] |
| Height | 275 mm [±1 mm] |
| Weight | 0.01 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 5 400 Gauss [±5%] |
| Size/Mount Quantity | 2xM5 |
| Polarity | circumferential - 12 poles |
| Casing Tube Thickness | 1 mm |
| Manufacturing Tolerance | ±1 mm |
Magnetic properties of material N42
| properties | values | units |
|---|---|---|
| remenance Br [min. - max.] ? | 12.9-13.2 | kGs |
| remenance Br [min. - max.] ? | 1290-1320 | mT |
| coercivity bHc ? | 10.8-12.0 | kOe |
| coercivity bHc ? | 860-955 | kA/m |
| actual internal force iHc | ≥ 12 | kOe |
| actual internal force iHc | ≥ 955 | kA/m |
| energy density [min. - max.] ? | 40-42 | BH max MGOe |
| energy density [min. - max.] ? | 318-334 | 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 |
Table 1: Rod construction
SM 18x275 [2xM5] / N42
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 18 | mm |
| Total length | 275 | mm (L) |
| Active length | 239 | mm |
| Section count | 10 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~532 | g |
| Active area | 135 | cm² (Area) |
| Housing material | AISI 304 | 1.4301 (Inox) |
| Surface finish | Ra < 0.8 µm | Polished |
| Temp. class | 80°C | Standard (N) |
| Force loss (at max °C) | -12.8% | Reversible loss (physics) |
| Force (calculated) | 3.8 | kg (theor.) |
| Induction (surface) | ~5 400 | Gauss (Max) |
Chart 2: Field profile (10 sections)
Chart 3: Temperature performance
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 as well as disadvantages of neodymium magnets.
Benefits
- Their strength is maintained, and after approximately ten years it decreases only by ~1% (theoretically),
- Neodymium magnets are distinguished by highly resistant to loss of magnetic properties caused by external magnetic fields,
- A magnet with a shiny nickel surface has better aesthetics,
- The surface of neodymium magnets generates a unique magnetic field – this is one of their assets,
- Thanks to resistance to high temperature, they can operate (depending on the form) even at temperatures up to 230°C and higher...
- Due to the potential of flexible shaping and customization to custom solutions, NdFeB magnets can be modeled in a variety of geometric configurations, which amplifies use scope,
- Versatile presence in innovative solutions – they are used in hard drives, motor assemblies, diagnostic systems, and multitasking production systems.
- Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in tiny dimensions, which makes them useful in miniature devices
Weaknesses
- They are prone to damage upon too strong impacts. To avoid cracks, it is worth securing magnets in special housings. Such protection not only shields the magnet but also increases its resistance to damage
- Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of strength (a factor is the shape as well as dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are very resistant to heat
- Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material resistant to moisture, when using outdoors
- We recommend a housing - magnetic mechanism, due to difficulties in producing nuts inside the magnet and complicated shapes.
- Possible danger resulting from small fragments of magnets can be dangerous, in case of ingestion, which gains importance in the context of child safety. Additionally, tiny parts of these products can disrupt the diagnostic process medical when they are in the body.
- High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which can limit application in large quantities
Lifting parameters
Magnetic strength at its maximum – what affects it?
- on a block made of mild steel, perfectly concentrating the magnetic flux
- with a cross-section minimum 10 mm
- with a plane cleaned and smooth
- without any air gap between the magnet and steel
- for force applied at a right angle (pull-off, not shear)
- in neutral thermal conditions
Key elements affecting lifting force
- Space between surfaces – every millimeter of distance (caused e.g. by veneer or unevenness) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
- Loading method – declared lifting capacity refers to detachment vertically. When slipping, the magnet exhibits much less (typically approx. 20-30% of maximum force).
- Plate thickness – too thin plate causes magnetic saturation, causing part of the flux to be escaped to the other side.
- Chemical composition of the base – mild steel attracts best. Alloy admixtures decrease magnetic properties and lifting capacity.
- Surface quality – the more even the plate, the larger the contact zone and stronger the hold. Roughness acts like micro-gaps.
- Operating temperature – NdFeB sinters have a negative temperature coefficient. At higher temperatures they lose power, and at low temperatures they can be stronger (up to a certain limit).
Lifting capacity testing was carried out on a smooth plate of suitable thickness, under a perpendicular pulling force, however under shearing force the load capacity is reduced by as much as 75%. In addition, even a small distance between the magnet’s surface and the plate lowers the load capacity.
Precautions when working with neodymium magnets
Physical harm
Risk of injury: The pulling power is so immense that it can cause hematomas, pinching, and even bone fractures. Use thick gloves.
Magnet fragility
Watch out for shards. Magnets can explode upon uncontrolled impact, ejecting shards into the air. Wear goggles.
GPS Danger
An intense magnetic field disrupts the operation of compasses in phones and navigation systems. Maintain magnets near a device to prevent breaking the sensors.
Handling rules
Exercise caution. Neodymium magnets act from a distance and snap with massive power, often quicker than you can react.
Electronic hazard
Data protection: Neodymium magnets can damage payment cards and sensitive devices (heart implants, medical aids, timepieces).
Dust explosion hazard
Fire hazard: Neodymium dust is explosive. Do not process magnets without safety gear as this risks ignition.
Danger to the youngest
These products are not suitable for play. Eating multiple magnets can lead to them attracting across intestines, which poses a direct threat to life and necessitates urgent medical intervention.
Do not overheat magnets
Regular neodymium magnets (grade N) undergo demagnetization when the temperature exceeds 80°C. The loss of strength is permanent.
Medical implants
Health Alert: Neodymium magnets can deactivate heart devices and defibrillators. Stay away if you have medical devices.
Avoid contact if allergic
Studies show that the nickel plating (the usual finish) is a strong allergen. If your skin reacts to metals, avoid direct skin contact or select versions in plastic housing.
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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