SM 32x150 [2xM8] / N42 - magnetic separator
magnetic separator
Catalog no 130297
GTIN/EAN: 5906301812906
Diameter Ø
32 mm [±1 mm]
Height
150 mm [±1 mm]
Weight
804 g
Magnetic Flux
~ 8 000 Gauss [±5%]
651.90 ZŁ with VAT / pcs + price for transport
530.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Lifting power along with shape of a neodymium magnet can be estimated on our
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Technical - SM 32x150 [2xM8] / N42 - magnetic separator
Specification / characteristics - SM 32x150 [2xM8] / N42 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130297 |
| GTIN/EAN | 5906301812906 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 32 mm [±1 mm] |
| Height | 150 mm [±1 mm] |
| Weight | 804 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 000 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| Polarity | circumferential - 5 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 32x150 [2xM8] / N42
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 32 | mm |
| Total length | 150 | mm (L) |
| Active length | 114 | mm |
| Section count | 4 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~917 | g |
| Active area | 115 | 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 (4 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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Advantages as well as disadvantages of rare earth magnets.
Benefits
- They have stable power, and over nearly ten years their attraction force decreases symbolically – ~1% (in testing),
- Magnets effectively defend themselves against loss of magnetization caused by ambient magnetic noise,
- By covering with a reflective layer of silver, the element gains an aesthetic look,
- Magnetic induction on the surface of the magnet remains very high,
- Due to their durability and thermal resistance, neodymium magnets can operate (depending on the form) even at high temperatures reaching 230°C or more...
- In view of the option of free shaping and customization to custom requirements, NdFeB magnets can be produced in a variety of forms and dimensions, which expands the range of possible applications,
- Huge importance in advanced technology sectors – they serve a role in mass storage devices, brushless drives, medical devices, as well as technologically advanced constructions.
- Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications
Limitations
- They are prone to damage upon too strong impacts. To avoid cracks, it is worth protecting magnets in a protective case. Such protection not only shields the magnet but also improves its resistance to damage
- We warn that neodymium magnets can reduce their strength at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
- When exposed to humidity, magnets start to rust. To use them in conditions outside, it is recommended to use protective magnets, such as those in rubber or plastics, which secure oxidation and corrosion.
- Due to limitations in creating threads and complicated shapes in magnets, we recommend using cover - magnetic mechanism.
- Possible danger resulting from small fragments of magnets can be dangerous, in case of ingestion, which gains importance in the context of child health protection. Additionally, tiny parts of these products are able to be problematic in diagnostics medical when they are in the body.
- Due to complex production process, their price exceeds standard values,
Holding force characteristics
Optimal lifting capacity of a neodymium magnet – what affects it?
- on a plate made of structural steel, optimally conducting the magnetic flux
- whose thickness equals approx. 10 mm
- with an polished touching surface
- under conditions of gap-free contact (surface-to-surface)
- for force acting at a right angle (in the magnet axis)
- at ambient temperature room level
Determinants of practical lifting force of a magnet
- Space between surfaces – even a fraction of a millimeter of separation (caused e.g. by varnish or dirt) diminishes the magnet efficiency, often by half at just 0.5 mm.
- Loading method – declared lifting capacity refers to detachment vertically. When applying parallel force, the magnet exhibits significantly lower power (typically approx. 20-30% of nominal force).
- Base massiveness – too thin steel does not close the flux, causing part of the flux to be wasted into the air.
- Metal type – different alloys attracts identically. Alloy additives weaken the interaction with the magnet.
- Smoothness – full contact is obtained only on polished steel. Any scratches and bumps reduce the real contact area, reducing force.
- Thermal factor – high temperature reduces pulling force. Exceeding the limit temperature can permanently demagnetize the magnet.
Lifting capacity testing was conducted on plates with a smooth surface of suitable thickness, under perpendicular forces, whereas under parallel forces the load capacity is reduced by as much as fivefold. Additionally, even a minimal clearance between the magnet’s surface and the plate decreases the load capacity.
Warnings
Do not give to children
Adult use only. Small elements can be swallowed, causing serious injuries. Keep away from kids and pets.
Data carriers
Powerful magnetic fields can corrupt files on payment cards, hard drives, and other magnetic media. Keep a distance of at least 10 cm.
Maximum temperature
Avoid heat. Neodymium magnets are sensitive to heat. If you need resistance above 80°C, inquire about HT versions (H, SH, UH).
Respect the power
Handle magnets with awareness. Their huge power can surprise even professionals. Be vigilant and do not underestimate their force.
GPS and phone interference
GPS units and smartphones are highly susceptible to magnetism. Close proximity with a strong magnet can decalibrate the sensors in your phone.
Crushing force
Large magnets can smash fingers in a fraction of a second. Under no circumstances place your hand betwixt two attracting surfaces.
Mechanical processing
Fire warning: Rare earth powder is explosive. Avoid machining magnets in home conditions as this may cause fire.
Magnet fragility
Neodymium magnets are ceramic materials, meaning they are prone to chipping. Clashing of two magnets leads to them breaking into shards.
Skin irritation risks
Nickel alert: The nickel-copper-nickel coating consists of nickel. If skin irritation occurs, immediately stop handling magnets and wear gloves.
Danger to pacemakers
Warning for patients: Powerful magnets affect electronics. Keep at least 30 cm distance or ask another person to work with the magnets.
