SM 32x300 [2xM8] / N52 - magnetic separator
magnetic separator
Catalog no 130459
GTIN/EAN: 5906301813309
Diameter Ø
32 mm [±1 mm]
Height
300 mm [±1 mm]
Weight
1660 g
Magnetic Flux
~ 10 000 Gauss [±5%]
971.70 ZŁ with VAT / pcs + price for transport
790.00 ZŁ net + 23% VAT / pcs
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Technical - SM 32x300 [2xM8] / N52 - magnetic separator
Specification / characteristics - SM 32x300 [2xM8] / N52 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130459 |
| GTIN/EAN | 5906301813309 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 32 mm [±1 mm] |
| Height | 300 mm [±1 mm] |
| Weight | 1660 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 10 000 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| Polarity | circumferential - 11 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 32x300 [2xM8] / N52
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 32 | mm |
| Total length | 300 | mm (L) |
| Active length | 264 | mm |
| Section count | 11 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~1834 | g |
| Active area | 265 | 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 (11 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 |
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Advantages as well as disadvantages of Nd2Fe14B magnets.
Pros
- They have stable power, and over around 10 years their performance decreases symbolically – ~1% (in testing),
- Neodymium magnets prove to be extremely resistant to demagnetization caused by external interference,
- The use of an shiny coating of noble metals (nickel, gold, silver) causes the element to be more visually attractive,
- Magnetic induction on the working part of the magnet remains impressive,
- Thanks to resistance to high temperature, they can operate (depending on the shape) even at temperatures up to 230°C and higher...
- Thanks to modularity in constructing and the ability to modify to complex applications,
- Key role in future technologies – they find application in HDD drives, brushless drives, medical equipment, as well as technologically advanced constructions.
- Relatively small size with high pulling force – neodymium magnets offer high power in tiny dimensions, which makes them useful in small systems
Limitations
- To avoid cracks upon strong impacts, we suggest using special steel holders. Such a solution secures the magnet and simultaneously improves its durability.
- We warn that neodymium magnets can lose 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. To use them in conditions outside, it is recommended to use protective magnets, such as those in rubber or plastics, which prevent oxidation and corrosion.
- Due to limitations in realizing threads and complex forms in magnets, we propose using casing - magnetic mechanism.
- Health risk related to microscopic parts of magnets pose a threat, in case of ingestion, which is particularly important in the context of child health protection. Additionally, small components of these products are able to be problematic in diagnostics medical in case of swallowing.
- Due to expensive raw materials, their price is relatively high,
Holding force characteristics
Best holding force of the magnet in ideal parameters – what it depends on?
- using a plate made of mild steel, serving as a ideal flux conductor
- whose thickness reaches at least 10 mm
- characterized by even structure
- without the slightest insulating layer between the magnet and steel
- during detachment in a direction perpendicular to the mounting surface
- at temperature room level
Determinants of practical lifting force of a magnet
- Distance (betwixt the magnet and the plate), because even a very small clearance (e.g. 0.5 mm) leads to a decrease in lifting capacity by up to 50% (this also applies to varnish, corrosion or debris).
- Loading method – catalog parameter refers to pulling vertically. When slipping, the magnet exhibits significantly lower power (often approx. 20-30% of maximum force).
- Wall thickness – thin material does not allow full use of the magnet. Part of the magnetic field penetrates through instead of converting into lifting capacity.
- Material composition – not every steel attracts identically. High carbon content weaken the attraction effect.
- Surface finish – ideal contact is obtained only on polished steel. Rough texture reduce the real contact area, weakening the magnet.
- Thermal environment – temperature increase causes a temporary drop of force. It is worth remembering the thermal limit for a given model.
Lifting capacity was assessed with the use of a steel plate with a smooth surface of optimal thickness (min. 20 mm), under perpendicular pulling force, in contrast under shearing force the lifting capacity is smaller. In addition, even a slight gap between the magnet’s surface and the plate lowers the holding force.
Safe handling of NdFeB magnets
Mechanical processing
Dust created during grinding of magnets is self-igniting. Avoid drilling into magnets without proper cooling and knowledge.
Choking Hazard
Adult use only. Tiny parts pose a choking risk, causing intestinal necrosis. Store away from kids and pets.
Medical interference
Health Alert: Neodymium magnets can deactivate pacemakers and defibrillators. Do not approach if you have medical devices.
Conscious usage
Be careful. Neodymium magnets attract from a distance and snap with huge force, often quicker than you can react.
Demagnetization risk
Avoid heat. Neodymium magnets are susceptible to temperature. If you need operation above 80°C, look for HT versions (H, SH, UH).
Allergy Warning
Certain individuals have a hypersensitivity to Ni, which is the typical protective layer for neodymium magnets. Frequent touching might lead to a rash. It is best to wear safety gloves.
Serious injuries
Protect your hands. Two large magnets will snap together instantly with a force of massive weight, destroying everything in their path. Exercise extreme caution!
Safe distance
Do not bring magnets close to a purse, laptop, or screen. The magnetism can destroy these devices and erase data from cards.
Magnet fragility
Watch out for shards. Magnets can fracture upon uncontrolled impact, ejecting shards into the air. We recommend safety glasses.
Phone sensors
A powerful magnetic field negatively affects the operation of magnetometers in phones and navigation systems. Do not bring magnets close to a smartphone to avoid damaging the sensors.
