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SM 32x375 [2xM8] / N42 - magnetic separator
magnetic separator
Catalog no 130379
GTIN/EAN: 5906301813279
Diameter Ø
32 mm [±1 mm]
Height
375 mm [±1 mm]
Weight
2010 g
Magnetic Flux
~ 8 000 Gauss [±5%]
1279.20 ZŁ with VAT / pcs + price for transport
1040.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Product card - SM 32x375 [2xM8] / N42 - magnetic separator
Specification / characteristics - SM 32x375 [2xM8] / N42 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130379 |
| GTIN/EAN | 5906301813279 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 32 mm [±1 mm] |
| Height | 375 mm [±1 mm] |
| Weight | 2010 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 000 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| Polarity | circumferential - 14 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 |
Table 1: Rod construction
SM 32x375 [2xM8] / N42
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 32 | mm |
| Total length | 375 | mm (L) |
| Active length | 339 | mm |
| Section count | 14 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~2292 | g |
| Active area | 341 | 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) | 26.2 | kg (theor.) |
| Induction (surface) | ~8 000 | Gauss (Max) |
Chart 2: Field profile (14 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% |
Sustainability
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
See also products
Strengths and weaknesses of Nd2Fe14B magnets.
Strengths
- Their magnetic field remains stable, and after approximately ten years it decreases only by ~1% (theoretically),
- They show high resistance to demagnetization induced by external disturbances,
- A magnet with a shiny silver surface is more attractive,
- Magnetic induction on the surface of the magnet turns out to be impressive,
- Through (appropriate) combination of ingredients, they can achieve high thermal strength, enabling operation at temperatures reaching 230°C and above...
- Possibility of detailed machining and modifying to precise conditions,
- Wide application in modern industrial fields – they are commonly used in hard drives, electromotive mechanisms, medical devices, and complex engineering applications.
- Compactness – despite small sizes they provide effective action, making them ideal for precision applications
Limitations
- To avoid cracks under impact, we suggest using special steel housings. Such a solution secures the magnet and simultaneously improves its durability.
- NdFeB magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of power (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
- They oxidize in a humid environment. For use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
- Due to limitations in realizing threads and complex shapes in magnets, we recommend using casing - magnetic mount.
- Health risk resulting from small fragments of magnets can be dangerous, in case of ingestion, which becomes key in the context of child safety. Additionally, small components of these products are able to be problematic in diagnostics medical in case of swallowing.
- Due to neodymium price, their price is higher than average,
Holding force characteristics
Maximum magnetic pulling force – what it depends on?
- with the contact of a sheet made of low-carbon steel, guaranteeing maximum field concentration
- whose transverse dimension is min. 10 mm
- with a plane cleaned and smooth
- without the slightest clearance between the magnet and steel
- for force applied at a right angle (pull-off, not shear)
- at ambient temperature approx. 20 degrees Celsius
Impact of factors on magnetic holding capacity in practice
- Space between surfaces – even a fraction of a millimeter of distance (caused e.g. by veneer or dirt) significantly weakens the pulling force, often by half at just 0.5 mm.
- Force direction – catalog parameter refers to detachment vertically. When attempting to slide, the magnet exhibits much less (typically approx. 20-30% of nominal force).
- Base massiveness – too thin steel does not close the flux, causing part of the flux to be lost into the air.
- Plate material – low-carbon steel attracts best. Alloy admixtures decrease magnetic properties and holding force.
- Smoothness – ideal contact is possible only on smooth steel. Rough texture reduce the real contact area, weakening the magnet.
- Thermal conditions – NdFeB sinters have a negative temperature coefficient. At higher temperatures they are weaker, and in frost they can be stronger (up to a certain limit).
Holding force was tested on the plate surface of 20 mm thickness, when a perpendicular force was applied, in contrast under parallel forces the load capacity is reduced by as much as fivefold. In addition, even a small distance between the magnet and the plate decreases the load capacity.
Safety rules for work with NdFeB magnets
This is not a toy
Product intended for adults. Small elements pose a choking risk, leading to serious injuries. Keep out of reach of kids and pets.
Danger to pacemakers
For implant holders: Strong magnetic fields disrupt medical devices. Maintain at least 30 cm distance or ask another person to handle the magnets.
Crushing force
Danger of trauma: The pulling power is so great that it can cause blood blisters, crushing, and even bone fractures. Protective gloves are recommended.
Do not underestimate power
Use magnets with awareness. Their powerful strength can shock even professionals. Stay alert and respect their force.
Permanent damage
Watch the temperature. Heating the magnet above 80 degrees Celsius will destroy its magnetic structure and pulling force.
GPS and phone interference
Navigation devices and mobile phones are highly sensitive to magnetism. Direct contact with a powerful NdFeB magnet can permanently damage the sensors in your phone.
Allergy Warning
Some people have a hypersensitivity to Ni, which is the typical protective layer for neodymium magnets. Frequent touching might lead to an allergic reaction. We strongly advise wear safety gloves.
Material brittleness
Beware of splinters. Magnets can fracture upon violent connection, launching shards into the air. Eye protection is mandatory.
Magnetic media
Data protection: Strong magnets can ruin data carriers and sensitive devices (pacemakers, hearing aids, mechanical watches).
Combustion hazard
Combustion risk: Neodymium dust is explosive. Do not process magnets without safety gear as this risks ignition.
Tabela kosztu i czasu dostawy
Płatność przed wysyłką:
GLS kurier
Przesyłka będzie u Ciebie za 2-3 dni
14.99 ZŁ
InPost Paczkomaty 24/7
Przesyłka będzie u Ciebie za 1-2 dni
12.30 ZŁ
Płatność przy odbiorze (pobranie):
GLS kurier
Przesyłka będzie u Ciebie za 1-2 dni
23.00 ZŁ
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