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
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Physical properties - 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
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 |
Other products
Advantages and disadvantages of neodymium magnets.
Benefits
- They virtually do not lose power, because even after 10 years the decline in efficiency is only ~1% (according to literature),
- Magnets perfectly protect themselves against loss of magnetization caused by foreign field sources,
- Thanks to the smooth finish, the surface of Ni-Cu-Ni, gold-plated, or silver-plated gives an modern appearance,
- They are known for high magnetic induction at the operating surface, which increases their power,
- Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
- Thanks to versatility in forming and the capacity to customize to unusual requirements,
- Versatile presence in electronics industry – they are used in computer drives, electric motors, medical devices, also multitasking production systems.
- Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in compact dimensions, which makes them useful in small systems
Limitations
- Brittleness is one of their disadvantages. Upon strong impact they can fracture. We recommend keeping them in a strong case, which not only secures them against impacts but also increases their durability
- Neodymium magnets demagnetize 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 extremely resistant to heat
- They rust in a humid environment. For use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
- Limited possibility of making nuts in the magnet and complex shapes - preferred is a housing - magnet mounting.
- Possible danger to health – tiny shards of magnets can be dangerous, in case of ingestion, which becomes key in the context of child health protection. It is also worth noting that tiny parts of these magnets can be problematic in diagnostics medical in case of swallowing.
- Due to complex production process, their price exceeds standard values,
Pull force analysis
Maximum magnetic pulling force – what contributes to it?
- using a plate made of mild steel, serving as a circuit closing element
- whose transverse dimension is min. 10 mm
- with an ideally smooth touching surface
- without any insulating layer between the magnet and steel
- during detachment in a direction vertical to the mounting surface
- in temp. approx. 20°C
Determinants of lifting force in real conditions
- Distance – the presence of any layer (rust, tape, air) interrupts the magnetic circuit, which reduces capacity rapidly (even by 50% at 0.5 mm).
- Force direction – declared lifting capacity refers to detachment vertically. When slipping, the magnet holds significantly lower power (typically approx. 20-30% of nominal force).
- Substrate thickness – for full efficiency, the steel must be sufficiently thick. Paper-thin metal limits the lifting capacity (the magnet "punches through" it).
- Material composition – not every steel reacts the same. Alloy additives worsen the attraction effect.
- Plate texture – ground elements guarantee perfect abutment, which increases force. Rough surfaces reduce efficiency.
- Temperature – heating the magnet causes a temporary drop of force. Check the maximum operating temperature for a given model.
Holding force was tested on the plate surface of 20 mm thickness, when the force acted perpendicularly, whereas under parallel forces the holding force is lower. Additionally, even a slight gap between the magnet and the plate lowers the load capacity.
H&S for magnets
This is not a toy
Always keep magnets out of reach of children. Choking hazard is significant, and the consequences of magnets clamping inside the body are fatal.
Physical harm
Pinching hazard: The pulling power is so immense that it can cause blood blisters, pinching, and even bone fractures. Protective gloves are recommended.
Conscious usage
Handle with care. Neodymium magnets attract from a distance and connect with huge force, often faster than you can react.
ICD Warning
Life threat: Strong magnets can deactivate pacemakers and defibrillators. Stay away if you have electronic implants.
Safe distance
Intense magnetic fields can destroy records on credit cards, HDDs, and storage devices. Stay away of min. 10 cm.
Nickel coating and allergies
Warning for allergy sufferers: The nickel-copper-nickel coating contains nickel. If redness occurs, cease handling magnets and wear gloves.
Mechanical processing
Powder generated during cutting of magnets is combustible. Avoid drilling into magnets unless you are an expert.
Impact on smartphones
Navigation devices and smartphones are highly susceptible to magnetic fields. Close proximity with a powerful NdFeB magnet can decalibrate the sensors in your phone.
Permanent damage
Avoid heat. Neodymium magnets are sensitive to temperature. If you need operation above 80°C, inquire about special high-temperature series (H, SH, UH).
Protective goggles
Neodymium magnets are sintered ceramics, which means they are fragile like glass. Impact of two magnets will cause them breaking into small pieces.
