SM 32x100 [2xM8] / N42 - magnetic separator
magnetic separator
Catalog no 130296
GTIN/EAN: 5906301812890
Diameter Ø
32 mm [±1 mm]
Height
100 mm [±1 mm]
Weight
536 g
Magnetic Flux
~ 8 000 Gauss [±5%]
307.50 ZŁ with VAT / pcs + price for transport
250.00 ZŁ net + 23% VAT / pcs
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Technical specification - SM 32x100 [2xM8] / N42 - magnetic separator
Specification / characteristics - SM 32x100 [2xM8] / N42 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130296 |
| GTIN/EAN | 5906301812890 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 32 mm [±1 mm] |
| Height | 100 mm [±1 mm] |
| Weight | 536 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 000 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| Polarity | circumferential - 3 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 32x100 [2xM8] / N42
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 32 | mm |
| Total length | 100 | mm (L) |
| Active length | 64 | mm |
| Section count | 2 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~611 | g |
| Active area | 64 | 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) | 17.3 | kg (theor.) |
| Induction (surface) | ~6 500 | Gauss (Max) |
Chart 2: Field profile (2 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 neodymium magnets.
Pros
- Their strength is durable, and after approximately 10 years it drops only by ~1% (according to research),
- Neodymium magnets are characterized by remarkably resistant to loss of magnetic properties caused by external interference,
- A magnet with a smooth gold surface is more attractive,
- Magnets exhibit impressive magnetic induction on the outer side,
- Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the form) even at high temperatures reaching 230°C or more...
- Possibility of individual machining and adjusting to atypical needs,
- Versatile presence in future technologies – they are commonly used in mass storage devices, electromotive mechanisms, advanced medical instruments, as well as technologically advanced constructions.
- Thanks to concentrated force, small magnets offer high operating force, in miniature format,
Disadvantages
- Brittleness is one of their disadvantages. Upon intense impact they can break. We advise keeping them in a steel housing, which not only secures them against impacts but also increases their durability
- We warn that neodymium magnets can reduce their strength at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 230°C.
- Magnets exposed to a humid environment can corrode. Therefore during using outdoors, we recommend using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
- We recommend a housing - magnetic mechanism, due to difficulties in realizing nuts inside the magnet and complex forms.
- Health risk resulting from small fragments of magnets pose a threat, in case of ingestion, which gains importance in the aspect of protecting the youngest. Furthermore, tiny parts of these magnets are able to be problematic in diagnostics medical when they are in the body.
- Due to neodymium price, their price is higher than average,
Lifting parameters
Breakaway strength of the magnet in ideal conditions – what contributes to it?
- using a sheet made of high-permeability steel, acting as a ideal flux conductor
- possessing a thickness of min. 10 mm to avoid saturation
- characterized by smoothness
- with zero gap (no coatings)
- during detachment in a direction perpendicular to the plane
- in temp. approx. 20°C
Key elements affecting lifting force
- Space between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by varnish or dirt) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
- Loading method – catalog parameter refers to detachment vertically. When attempting to slide, the magnet exhibits significantly lower power (often approx. 20-30% of maximum force).
- Steel thickness – too thin steel does not close the flux, causing part of the power to be lost to the other side.
- Plate material – low-carbon steel gives the best results. Higher carbon content reduce magnetic permeability and holding force.
- Surface condition – smooth surfaces guarantee perfect abutment, which improves force. Uneven metal reduce efficiency.
- Operating temperature – neodymium magnets have a sensitivity to temperature. At higher temperatures they are weaker, and at low temperatures they can be stronger (up to a certain limit).
Lifting capacity testing was performed on a smooth plate of optimal thickness, under a perpendicular pulling force, in contrast under parallel forces the load capacity is reduced by as much as 5 times. Moreover, even a minimal clearance between the magnet and the plate lowers the holding force.
Safety rules for work with NdFeB magnets
Beware of splinters
Watch out for shards. Magnets can fracture upon violent connection, ejecting shards into the air. Eye protection is mandatory.
Safe distance
Intense magnetic fields can destroy records on payment cards, hard drives, and other magnetic media. Maintain a gap of min. 10 cm.
This is not a toy
Strictly store magnets out of reach of children. Ingestion danger is high, and the effects of magnets connecting inside the body are life-threatening.
Medical implants
Patients with a pacemaker must maintain an large gap from magnets. The magnetic field can disrupt the functioning of the implant.
Do not underestimate power
Handle with care. Rare earth magnets attract from a long distance and connect with huge force, often quicker than you can move away.
Flammability
Drilling and cutting of neodymium magnets poses a fire hazard. Neodymium dust oxidizes rapidly with oxygen and is hard to extinguish.
Bodily injuries
Danger of trauma: The pulling power is so immense that it can result in blood blisters, pinching, and even bone fractures. Use thick gloves.
Compass and GPS
Navigation devices and smartphones are highly sensitive to magnetism. Close proximity with a powerful NdFeB magnet can decalibrate the sensors in your phone.
Nickel allergy
Certain individuals experience a hypersensitivity to nickel, which is the common plating for NdFeB magnets. Extended handling may cause a rash. We recommend wear safety gloves.
Heat sensitivity
Avoid heat. NdFeB magnets are susceptible to temperature. If you require resistance above 80°C, inquire about HT versions (H, SH, UH).
