SM 32x425 [2xM8] / N52 - magnetic separator
magnetic separator
Catalog no 130464
GTIN/EAN: 5906301813354
Diameter Ø
32 mm [±1 mm]
Height
425 mm [±1 mm]
Weight
2353 g
Magnetic Flux
~ 10 000 Gauss [±5%]
1340.70 ZŁ with VAT / pcs + price for transport
1090.00 ZŁ net + 23% VAT / pcs
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Technical parameters - SM 32x425 [2xM8] / N52 - magnetic separator
Specification / characteristics - SM 32x425 [2xM8] / N52 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130464 |
| GTIN/EAN | 5906301813354 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 32 mm [±1 mm] |
| Height | 425 mm [±1 mm] |
| Weight | 2353 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 10 000 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| Polarity | circumferential - 16 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 32x425 [2xM8] / N52
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 32 | mm |
| Total length | 425 | mm (L) |
| Active length | 389 | mm |
| Section count | 16 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~2598 | g |
| Active area | 391 | 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 (16 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% |
Sustainability
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
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Pros as well as cons of Nd2Fe14B magnets.
Advantages
- They retain attractive force for around ten years – the loss is just ~1% (according to analyses),
- They are extremely resistant to demagnetization induced by external magnetic fields,
- A magnet with a metallic nickel surface has an effective appearance,
- The surface of neodymium magnets generates a maximum magnetic field – this is a key feature,
- Through (appropriate) combination of ingredients, they can achieve high thermal strength, allowing for action at temperatures reaching 230°C and above...
- Thanks to modularity in designing and the capacity to adapt to individual projects,
- Key role in advanced technology sectors – they are utilized in mass storage devices, electric drive systems, medical equipment, and technologically advanced constructions.
- Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in tiny dimensions, which makes them useful in miniature devices
Limitations
- At strong impacts they can crack, therefore we advise placing them in special holders. A metal housing provides additional protection against damage and increases the magnet's durability.
- We warn that neodymium magnets can lose their power at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
- They rust in a humid environment - during use outdoors we advise using waterproof magnets e.g. in rubber, plastic
- Limited possibility of making threads in the magnet and complex forms - recommended is cover - magnetic holder.
- Potential hazard to health – tiny shards of magnets pose a threat, if swallowed, which becomes key in the context of child safety. Additionally, small components of these devices are able to complicate diagnosis medical when they are in the body.
- 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
Maximum magnetic pulling force – what affects it?
- on a plate made of mild steel, optimally conducting the magnetic field
- whose transverse dimension reaches at least 10 mm
- with a surface cleaned and smooth
- under conditions of ideal adhesion (surface-to-surface)
- during pulling in a direction perpendicular to the mounting surface
- at room temperature
What influences lifting capacity in practice
- Clearance – the presence of any layer (rust, tape, air) interrupts the magnetic circuit, which reduces power steeply (even by 50% at 0.5 mm).
- Load vector – maximum parameter is obtained only during perpendicular pulling. The force required to slide of the magnet along the surface is usually several times smaller (approx. 1/5 of the lifting capacity).
- Base massiveness – insufficiently thick plate does not accept the full field, causing part of the power to be wasted into the air.
- Material type – ideal substrate is high-permeability steel. Stainless steels may generate lower lifting capacity.
- Surface finish – full contact is possible only on smooth steel. Any scratches and bumps reduce the real contact area, reducing force.
- Operating temperature – NdFeB sinters have a negative temperature coefficient. When it is hot they lose power, and at low temperatures they can be stronger (up to a certain limit).
Holding force was tested on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, in contrast under attempts to slide the magnet the holding force is lower. Additionally, even a minimal clearance between the magnet and the plate decreases the load capacity.
Precautions when working with NdFeB magnets
Handling rules
Handle magnets with awareness. Their powerful strength can shock even professionals. Plan your moves and do not underestimate their power.
Skin irritation risks
Warning for allergy sufferers: The nickel-copper-nickel coating contains nickel. If redness occurs, immediately stop working with magnets and wear gloves.
Operating temperature
Regular neodymium magnets (grade N) undergo demagnetization when the temperature goes above 80°C. Damage is permanent.
Material brittleness
Despite the nickel coating, the material is brittle and not impact-resistant. Do not hit, as the magnet may crumble into hazardous fragments.
Medical implants
Individuals with a heart stimulator should keep an large gap from magnets. The magnetism can interfere with the operation of the implant.
Serious injuries
Risk of injury: The attraction force is so immense that it can cause blood blisters, crushing, and broken bones. Protective gloves are recommended.
Mechanical processing
Powder generated during machining of magnets is flammable. Do not drill into magnets without proper cooling and knowledge.
Choking Hazard
These products are not intended for children. Eating several magnets may result in them attracting across intestines, which poses a severe health hazard and necessitates urgent medical intervention.
Magnetic interference
A powerful magnetic field interferes with the operation of compasses in smartphones and GPS navigation. Keep magnets close to a device to avoid breaking the sensors.
Magnetic media
Powerful magnetic fields can erase data on credit cards, HDDs, and other magnetic media. Maintain a gap of at least 10 cm.
