SM 32x325 [2xM8] / N52 - magnetic separator
magnetic separator
Catalog no 130460
GTIN/EAN: 5906301813316
Diameter Ø
32 mm [±1 mm]
Height
325 mm [±1 mm]
Weight
1800 g
Magnetic Flux
~ 10 000 Gauss [±5%]
1045.50 ZŁ with VAT / pcs + price for transport
850.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Technical - SM 32x325 [2xM8] / N52 - magnetic separator
Specification / characteristics - SM 32x325 [2xM8] / N52 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130460 |
| GTIN/EAN | 5906301813316 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 32 mm [±1 mm] |
| Height | 325 mm [±1 mm] |
| Weight | 1800 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 10 000 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| Polarity | circumferential - 12 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 32x325 [2xM8] / N52
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 32 | mm |
| Total length | 325 | mm (L) |
| Active length | 289 | mm |
| Section count | 12 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~1986 | g |
| Active area | 291 | 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 (12 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% |
Ecology and recycling (GPSR)
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
Other products
Advantages and disadvantages of rare earth magnets.
Advantages
- They retain magnetic properties for almost ten years – the drop is just ~1% (in theory),
- Magnets very well resist against loss of magnetization caused by ambient magnetic noise,
- The use of an shiny layer of noble metals (nickel, gold, silver) causes the element to be more visually attractive,
- The surface of neodymium magnets generates a intense magnetic field – this is a key feature,
- Neodymium magnets are characterized by very high magnetic induction on the magnet surface and are able to act (depending on the shape) even at a temperature of 230°C or more...
- Possibility of exact modeling and adapting to individual needs,
- Key role in high-tech industry – they find application in data components, motor assemblies, diagnostic systems, also industrial machines.
- Thanks to concentrated force, small magnets offer high operating force, occupying minimum space,
Limitations
- To avoid cracks upon strong impacts, we suggest using special steel housings. Such a solution protects the magnet and simultaneously improves its durability.
- Neodymium magnets lose power 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 recommend using waterproof magnets made of rubber, plastic or other material stable to moisture, in case of application outdoors
- Limited ability of making nuts in the magnet and complex forms - recommended is a housing - magnet mounting.
- Possible danger related to microscopic parts of magnets can be dangerous, in case of ingestion, which is particularly important in the context of child safety. It is also worth noting that small components of these products are able to disrupt the diagnostic process medical after entering the body.
- Due to complex production process, their price is relatively high,
Pull force analysis
Breakaway strength of the magnet in ideal conditions – what affects it?
- with the application of a yoke made of low-carbon steel, ensuring full magnetic saturation
- whose thickness equals approx. 10 mm
- with an polished touching surface
- with zero gap (without coatings)
- under axial application of breakaway force (90-degree angle)
- at room temperature
What influences lifting capacity in practice
- Air gap (betwixt the magnet and the plate), as even a tiny clearance (e.g. 0.5 mm) leads to a decrease in lifting capacity by up to 50% (this also applies to varnish, corrosion or dirt).
- Force direction – note that the magnet has greatest strength perpendicularly. Under shear forces, the holding force drops drastically, often to levels of 20-30% of the nominal value.
- Base massiveness – insufficiently thick sheet does not accept the full field, causing part of the power to be escaped to the other side.
- Material composition – not every steel reacts the same. High carbon content weaken the interaction with the magnet.
- Surface condition – smooth surfaces guarantee perfect abutment, which increases field saturation. Uneven metal reduce efficiency.
- Operating temperature – NdFeB sinters have a sensitivity to temperature. When it is hot they lose power, and at low temperatures gain strength (up to a certain limit).
Holding force was measured on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, in contrast under shearing force the load capacity is reduced by as much as fivefold. Moreover, even a small distance between the magnet and the plate reduces the load capacity.
Precautions when working with NdFeB magnets
Compass and GPS
A strong magnetic field interferes with the functioning of compasses in phones and navigation systems. Maintain magnets close to a smartphone to avoid breaking the sensors.
Medical implants
Health Alert: Neodymium magnets can deactivate heart devices and defibrillators. Stay away if you have medical devices.
Sensitization to coating
Allergy Notice: The nickel-copper-nickel coating contains nickel. If redness appears, cease working with magnets and use protective gear.
Do not drill into magnets
Fire warning: Neodymium dust is explosive. Do not process magnets without safety gear as this may cause fire.
Hand protection
Risk of injury: The pulling power is so great that it can cause blood blisters, crushing, and broken bones. Protective gloves are recommended.
Cards and drives
Avoid bringing magnets near a purse, laptop, or TV. The magnetism can permanently damage these devices and erase data from cards.
Magnets are brittle
NdFeB magnets are sintered ceramics, which means they are very brittle. Impact of two magnets leads to them breaking into shards.
No play value
NdFeB magnets are not suitable for play. Accidental ingestion of multiple magnets can lead to them connecting inside the digestive tract, which poses a critical condition and requires urgent medical intervention.
Power loss in heat
Control the heat. Heating the magnet to high heat will destroy its magnetic structure and pulling force.
Powerful field
Before use, check safety instructions. Uncontrolled attraction can break the magnet or hurt your hand. Be predictive.
