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SM 32x225 [2xM8] / N42 - magnetic separator
magnetic separator
Catalog no 130375
GTIN/EAN: 5906301813231
Diameter Ø
32 mm [±1 mm]
Height
225 mm [±1 mm]
Weight
1245 g
Magnetic Flux
~ 8 000 Gauss [±5%]
848.70 ZŁ with VAT / pcs + price for transport
690.00 ZŁ net + 23% VAT / pcs
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Technical of the product - SM 32x225 [2xM8] / N42 - magnetic separator
Specification / characteristics - SM 32x225 [2xM8] / N42 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130375 |
| GTIN/EAN | 5906301813231 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 32 mm [±1 mm] |
| Height | 225 mm [±1 mm] |
| Weight | 1245 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 000 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| Polarity | circumferential - 8 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 32x225 [2xM8] / N42
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 32 | mm |
| Total length | 225 | mm (L) |
| Active length | 189 | mm |
| Section count | 8 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~1375 | g |
| Active area | 190 | 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) | 26.2 | kg (theor.) |
| Induction (surface) | ~8 000 | Gauss (Max) |
Chart 2: Field profile (8 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% |
Environmental data
| 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 magnetic field is maintained, and after around 10 years it decreases only by ~1% (according to research),
- They maintain their magnetic properties even under close interference source,
- Thanks to the shimmering finish, the surface of nickel, gold-plated, or silver gives an modern appearance,
- The surface of neodymium magnets generates a maximum magnetic field – this is a distinguishing feature,
- 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 versatility in shaping and the ability to customize to client solutions,
- Key role in innovative solutions – they are utilized in hard drives, electric drive systems, medical equipment, also modern systems.
- Thanks to their power density, small magnets offer high operating force, in miniature format,
Weaknesses
- To avoid cracks upon strong impacts, we suggest using special steel housings. Such a solution secures the magnet and simultaneously improves its durability.
- Neodymium magnets lose their force under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
- Magnets exposed to a humid environment can rust. Therefore when using outdoors, we advise using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
- Limited possibility of producing threads in the magnet and complex forms - preferred is cover - mounting mechanism.
- Potential hazard related to microscopic parts of magnets pose a threat, when accidentally swallowed, which is particularly important in the context of child health protection. Furthermore, small components of these magnets are able to disrupt the diagnostic process medical when they are in the body.
- High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which hinders application in large quantities
Holding force characteristics
Magnetic strength at its maximum – what contributes to it?
- using a base made of mild steel, serving as a circuit closing element
- with a thickness no less than 10 mm
- with a plane perfectly flat
- with zero gap (without impurities)
- for force applied at a right angle (pull-off, not shear)
- in neutral thermal conditions
Magnet lifting force in use – key factors
- Distance – existence of any layer (paint, dirt, gap) interrupts the magnetic circuit, which reduces power steeply (even by 50% at 0.5 mm).
- Force direction – remember that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the nominal value.
- Substrate thickness – to utilize 100% power, the steel must be sufficiently thick. Thin sheet restricts the attraction force (the magnet "punches through" it).
- Material type – ideal substrate is high-permeability steel. Cast iron may have worse magnetic properties.
- Surface finish – ideal contact is possible only on polished steel. Any scratches and bumps create air cushions, reducing force.
- Heat – NdFeB sinters have a sensitivity to temperature. When it is hot they lose power, and in frost they can be stronger (up to a certain limit).
Holding force was measured on the plate surface of 20 mm thickness, when the force acted perpendicularly, whereas under attempts to slide the magnet the holding force is lower. Moreover, even a small distance between the magnet’s surface and the plate decreases the lifting capacity.
Precautions when working with NdFeB magnets
Protective goggles
Beware of splinters. Magnets can explode upon uncontrolled impact, ejecting sharp fragments into the air. Wear goggles.
Swallowing risk
Only for adults. Small elements can be swallowed, leading to serious injuries. Keep away from children and animals.
Magnetic interference
A strong magnetic field disrupts the operation of compasses in phones and navigation systems. Maintain magnets close to a device to prevent damaging the sensors.
Medical interference
For implant holders: Strong magnetic fields disrupt electronics. Maintain minimum 30 cm distance or request help to work with the magnets.
Machining danger
Fire hazard: Neodymium dust is highly flammable. Do not process magnets in home conditions as this may cause fire.
Do not underestimate power
Handle with care. Rare earth magnets attract from a long distance and snap with huge force, often quicker than you can react.
Avoid contact if allergic
Warning for allergy sufferers: The Ni-Cu-Ni coating contains nickel. If an allergic reaction happens, immediately stop handling magnets and wear gloves.
Hand protection
Large magnets can smash fingers in a fraction of a second. Do not put your hand between two attracting surfaces.
Safe distance
Powerful magnetic fields can erase data on payment cards, HDDs, and other magnetic media. Stay away of min. 10 cm.
Maximum temperature
Regular neodymium magnets (grade N) undergo demagnetization when the temperature goes above 80°C. This process is irreversible.
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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