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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Detailed specification - 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
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 rare earth magnets.
Strengths
- They retain full power for almost ten years – the drop is just ~1% (according to analyses),
- They have excellent resistance to weakening of magnetic properties due to opposing magnetic fields,
- In other words, due to the shiny finish of silver, the element is aesthetically pleasing,
- Neodymium magnets ensure maximum magnetic induction on a small area, which ensures high operational effectiveness,
- Thanks to resistance to high temperature, they are able to function (depending on the shape) even at temperatures up to 230°C and higher...
- Thanks to the potential of free shaping and customization to individualized needs, neodymium magnets can be modeled in a variety of shapes and sizes, which expands the range of possible applications,
- Wide application in electronics industry – they are utilized in magnetic memories, motor assemblies, medical equipment, also multitasking production systems.
- Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications
Weaknesses
- To avoid cracks under impact, we recommend using special steel housings. Such a solution protects the magnet and simultaneously improves its durability.
- Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of power (a factor is the shape and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely resistant to heat
- They oxidize in a humid environment - during use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
- Limited possibility of making nuts in the magnet and complex shapes - preferred is a housing - magnetic holder.
- Potential hazard to health – tiny shards of magnets pose a threat, when accidentally swallowed, which is particularly important in the aspect of protecting the youngest. Furthermore, small components of these devices can disrupt the diagnostic process medical in case of swallowing.
- High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which increases costs of application in large quantities
Lifting parameters
Detachment force of the magnet in optimal conditions – what it depends on?
- using a plate made of low-carbon steel, acting as a magnetic yoke
- whose thickness equals approx. 10 mm
- with a plane perfectly flat
- without any clearance between the magnet and steel
- under perpendicular force direction (90-degree angle)
- at temperature room level
Magnet lifting force in use – key factors
- Gap (betwixt the magnet and the metal), since even a microscopic 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).
- Pull-off angle – note that the magnet has greatest strength perpendicularly. Under shear forces, the capacity drops drastically, often to levels of 20-30% of the nominal value.
- Element thickness – for full efficiency, the steel must be sufficiently thick. Thin sheet limits the attraction force (the magnet "punches through" it).
- Metal type – different alloys reacts the same. High carbon content weaken the interaction with the magnet.
- Base smoothness – the more even the surface, the larger the contact zone and higher the lifting capacity. Unevenness creates an air distance.
- Thermal environment – heating the magnet causes a temporary drop of force. Check the maximum operating temperature for a given model.
Holding force was measured on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, in contrast under parallel forces the lifting capacity is smaller. Additionally, even a small distance between the magnet’s surface and the plate decreases the lifting capacity.
Warnings
Caution required
Before use, check safety instructions. Sudden snapping can destroy the magnet or hurt your hand. Think ahead.
Crushing force
Pinching hazard: The attraction force is so great that it can cause blood blisters, pinching, and broken bones. Protective gloves are recommended.
Fragile material
Beware of splinters. Magnets can fracture upon uncontrolled impact, ejecting sharp fragments into the air. Wear goggles.
Cards and drives
Avoid bringing magnets close to a wallet, laptop, or screen. The magnetic field can permanently damage these devices and erase data from cards.
Mechanical processing
Fire warning: Rare earth powder is explosive. Do not process magnets without safety gear as this risks ignition.
Choking Hazard
Neodymium magnets are not toys. Accidental ingestion of a few magnets may result in them attracting across intestines, which constitutes a severe health hazard and requires urgent medical intervention.
Implant safety
Warning for patients: Strong magnetic fields disrupt electronics. Maintain at least 30 cm distance or ask another person to work with the magnets.
Heat sensitivity
Regular neodymium magnets (N-type) undergo demagnetization when the temperature surpasses 80°C. This process is irreversible.
Precision electronics
A strong magnetic field interferes with the operation of magnetometers in smartphones and GPS navigation. Do not bring magnets near a smartphone to avoid damaging the sensors.
Allergic reactions
Nickel alert: The nickel-copper-nickel coating contains nickel. If redness occurs, cease working with magnets and wear gloves.
