SM 32x475 [2xM8] / N52 - magnetic separator
magnetic separator
Catalog no 130466
GTIN/EAN: 5906301813378
Diameter Ø
32 mm [±1 mm]
Height
475 mm [±1 mm]
Weight
2630 g
Magnetic Flux
~ 10 000 Gauss [±5%]
1488.30 ZŁ with VAT / pcs + price for transport
1210.00 ZŁ net + 23% VAT / pcs
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Product card - SM 32x475 [2xM8] / N52 - magnetic separator
Specification / characteristics - SM 32x475 [2xM8] / N52 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130466 |
| GTIN/EAN | 5906301813378 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 32 mm [±1 mm] |
| Height | 475 mm [±1 mm] |
| Weight | 2630 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 10 000 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| Polarity | circumferential - 18 poles |
| Casing Tube Thickness | 1 mm |
| Manufacturing Tolerance | ±1 mm |
Magnetic properties of material N52
| properties | values | units |
|---|---|---|
| remenance Br [min. - max.] ? | 14.2-14.7 | kGs |
| remenance Br [min. - max.] ? | 1420-1470 | mT |
| coercivity bHc ? | 10.8-12.5 | kOe |
| coercivity bHc ? | 860-995 | kA/m |
| actual internal force iHc | ≥ 12 | kOe |
| actual internal force iHc | ≥ 955 | kA/m |
| energy density [min. - max.] ? | 48-53 | BH max MGOe |
| energy density [min. - max.] ? | 380-422 | 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 32x475 [2xM8] / N52
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 32 | mm |
| Total length | 475 | mm (L) |
| Active length | 439 | mm |
| Section count | 19 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~2903 | g |
| Active area | 441 | 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) | 41 | kg (theor.) |
| Induction (surface) | ~10 000 | Gauss (Max) |
Chart 2: Field profile (19 sections)
Chart 3: Temperature performance
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 |
Other products
Pros as well as cons of neodymium magnets.
Strengths
- Their power is maintained, and after around ten years it decreases only by ~1% (theoretically),
- Magnets very well protect themselves against demagnetization caused by external fields,
- In other words, due to the metallic layer of gold, the element becomes visually attractive,
- Magnetic induction on the surface of the magnet remains very high,
- Through (appropriate) combination of ingredients, they can achieve high thermal strength, enabling functioning at temperatures reaching 230°C and above...
- In view of the potential of accurate shaping and customization to individualized requirements, neodymium magnets can be created in a wide range of forms and dimensions, which amplifies use scope,
- Huge importance in innovative solutions – they find application in HDD drives, motor assemblies, medical devices, and multitasking production systems.
- Compactness – despite small sizes they generate large force, making them ideal for precision applications
Limitations
- At strong impacts they can crack, therefore we advise placing them in steel cases. A metal housing provides additional protection against damage and increases the magnet's durability.
- We warn that neodymium magnets can reduce their strength at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 230°C.
- When exposed to humidity, magnets usually rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation and corrosion.
- Limited ability of making threads in the magnet and complicated shapes - recommended is cover - magnet mounting.
- Possible danger resulting from small fragments of magnets are risky, if swallowed, which becomes key in the context of child safety. Furthermore, small components of these products are able to complicate diagnosis medical when they are in the body.
- Due to complex production process, their price exceeds standard values,
Pull force analysis
Maximum lifting force for a neodymium magnet – what it depends on?
- with the contact of a sheet made of special test steel, guaranteeing full magnetic saturation
- with a thickness no less than 10 mm
- with a plane free of scratches
- under conditions of gap-free contact (surface-to-surface)
- for force acting at a right angle (in the magnet axis)
- at conditions approx. 20°C
Impact of factors on magnetic holding capacity in practice
- Space between surfaces – even a fraction of a millimeter of distance (caused e.g. by veneer or unevenness) diminishes the pulling force, often by half at just 0.5 mm.
- Pull-off angle – remember that the magnet has greatest strength perpendicularly. Under shear forces, the holding force drops significantly, often to levels of 20-30% of the nominal value.
- Wall thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field penetrates through instead of converting into lifting capacity.
- Chemical composition of the base – low-carbon steel attracts best. Alloy steels lower magnetic properties and lifting capacity.
- Smoothness – full contact is possible only on smooth steel. Rough texture reduce the real contact area, reducing force.
- Thermal environment – temperature increase results in weakening of induction. Check the maximum operating temperature for a given model.
Holding force was checked on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, however under parallel forces the holding force is lower. Moreover, even a small distance between the magnet and the plate decreases the lifting capacity.
Safety rules for work with NdFeB magnets
Do not give to children
Strictly keep magnets away from children. Ingestion danger is significant, and the effects of magnets clamping inside the body are fatal.
Implant safety
Health Alert: Strong magnets can turn off pacemakers and defibrillators. Stay away if you have medical devices.
Avoid contact if allergic
It is widely known that nickel (the usual finish) is a common allergen. For allergy sufferers, avoid touching magnets with bare hands and select encased magnets.
Magnets are brittle
Neodymium magnets are ceramic materials, meaning they are fragile like glass. Impact of two magnets will cause them breaking into small pieces.
Combustion hazard
Fire hazard: Rare earth powder is highly flammable. Avoid machining magnets without safety gear as this may cause fire.
Threat to navigation
Navigation devices and smartphones are extremely sensitive to magnetism. Close proximity with a powerful NdFeB magnet can ruin the internal compass in your phone.
Caution required
Use magnets consciously. Their powerful strength can shock even experienced users. Be vigilant and do not underestimate their force.
Threat to electronics
Device Safety: Strong magnets can ruin data carriers and sensitive devices (pacemakers, hearing aids, timepieces).
Permanent damage
Control the heat. Exposing the magnet to high heat will ruin its magnetic structure and strength.
Crushing risk
Danger of trauma: The attraction force is so immense that it can cause blood blisters, pinching, and broken bones. Protective gloves are recommended.
