SM 32x350 [2xM8] / N42 - magnetic separator
magnetic separator
Catalog no 130301
GTIN/EAN: 5906301812944
Diameter Ø
32 mm [±1 mm]
Height
350 mm [±1 mm]
Weight
1870 g
Magnetic Flux
~ 8 000 Gauss [±5%]
1045.50 ZŁ with VAT / pcs + price for transport
850.00 ZŁ net + 23% VAT / pcs
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Technical details - SM 32x350 [2xM8] / N42 - magnetic separator
Specification / characteristics - SM 32x350 [2xM8] / N42 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130301 |
| GTIN/EAN | 5906301812944 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 32 mm [±1 mm] |
| Height | 350 mm [±1 mm] |
| Weight | 1870 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 000 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| Polarity | circumferential - 13 poles |
| Casing Tube Thickness | 1 mm |
| Manufacturing Tolerance | ±1 mm |
Magnetic properties of material N42
| properties | values | units |
|---|---|---|
| remenance Br [min. - max.] ? | 12.9-13.2 | kGs |
| remenance Br [min. - max.] ? | 1290-1320 | mT |
| coercivity bHc ? | 10.8-12.0 | kOe |
| coercivity bHc ? | 860-955 | kA/m |
| actual internal force iHc | ≥ 12 | kOe |
| actual internal force iHc | ≥ 955 | kA/m |
| energy density [min. - max.] ? | 40-42 | BH max MGOe |
| energy density [min. - max.] ? | 318-334 | 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 |
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% |
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 Nd2Fe14B magnets.
Benefits
- They have unchanged lifting capacity, and over nearly 10 years their performance decreases symbolically – ~1% (in testing),
- They are noted for resistance to demagnetization induced by external disturbances,
- A magnet with a smooth nickel surface looks better,
- The surface of neodymium magnets generates a maximum magnetic field – this is a key feature,
- Neodymium magnets are characterized by extremely 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 custom shaping as well as adjusting to individual conditions,
- Fundamental importance in high-tech industry – they are utilized in magnetic memories, electric motors, medical devices, and industrial machines.
- Compactness – despite small sizes they generate large force, making them ideal for precision applications
Weaknesses
- To avoid cracks upon strong impacts, we recommend using special steel housings. Such a solution secures the magnet and simultaneously increases its durability.
- Neodymium magnets lose their power under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
- Magnets exposed to a humid environment can rust. Therefore when using outdoors, we recommend using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
- Limited ability of creating threads in the magnet and complicated forms - recommended is cover - magnet mounting.
- Possible danger resulting from small fragments of magnets pose a threat, if swallowed, which becomes key in the aspect of protecting the youngest. It is also worth noting that small components of these magnets can complicate diagnosis 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
Holding force characteristics
Optimal lifting capacity of a neodymium magnet – what contributes to it?
- on a base made of structural steel, perfectly concentrating the magnetic field
- whose thickness equals approx. 10 mm
- with a surface free of scratches
- under conditions of no distance (surface-to-surface)
- for force applied at a right angle (pull-off, not shear)
- in temp. approx. 20°C
Practical lifting capacity: influencing factors
- Gap between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by veneer or dirt) diminishes the magnet efficiency, often by half at just 0.5 mm.
- Angle of force application – maximum parameter is available only during perpendicular pulling. The resistance to sliding of the magnet along the plate is usually several times smaller (approx. 1/5 of the lifting capacity).
- Substrate thickness – to utilize 100% power, the steel must be sufficiently thick. Paper-thin metal limits the attraction force (the magnet "punches through" it).
- Material type – ideal substrate is high-permeability steel. Hardened steels may generate lower lifting capacity.
- Base smoothness – the more even the surface, the larger the contact zone and higher the lifting capacity. Unevenness acts like micro-gaps.
- Thermal environment – heating the magnet results in weakening of induction. It is worth remembering the maximum operating temperature for a given model.
Lifting capacity testing was carried out on plates with a smooth surface of optimal thickness, under a perpendicular pulling force, in contrast under attempts to slide the magnet the lifting capacity is smaller. In addition, even a minimal clearance between the magnet and the plate lowers the holding force.
Warnings
Phone sensors
Be aware: rare earth magnets produce a field that interferes with precision electronics. Maintain a safe distance from your mobile, device, and GPS.
Do not overheat magnets
Keep cool. NdFeB magnets are sensitive to heat. If you need resistance above 80°C, look for special high-temperature series (H, SH, UH).
Allergy Warning
Medical facts indicate that nickel (standard magnet coating) is a strong allergen. For allergy sufferers, avoid direct skin contact or opt for coated magnets.
Implant safety
Warning for patients: Strong magnetic fields affect medical devices. Keep minimum 30 cm distance or ask another person to work with the magnets.
Keep away from children
Adult use only. Tiny parts pose a choking risk, leading to intestinal necrosis. Store out of reach of kids and pets.
Dust is flammable
Machining of NdFeB material carries a risk of fire hazard. Neodymium dust reacts violently with oxygen and is difficult to extinguish.
Safe distance
Data protection: Strong magnets can damage payment cards and sensitive devices (pacemakers, medical aids, timepieces).
Crushing risk
Big blocks can smash fingers in a fraction of a second. Never place your hand between two attracting surfaces.
Fragile material
Protect your eyes. Magnets can explode upon violent connection, launching sharp fragments into the air. We recommend safety glasses.
Handling guide
Use magnets with awareness. Their powerful strength can surprise even professionals. Plan your moves and do not underestimate their power.
