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
bulk discounts:
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Detailed specification - 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 |
Table 1: Rod construction
SM 32x350 [2xM8] / N42
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 32 | mm |
| Total length | 350 | mm (L) |
| Active length | 314 | mm |
| Section count | 13 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~2139 | g |
| Active area | 316 | 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 (13 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% |
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
Strengths and weaknesses of neodymium magnets.
Pros
- They do not lose strength, even during around ten years – the drop in strength is only ~1% (theoretically),
- They maintain their magnetic properties even under external field action,
- In other words, due to the reflective finish of nickel, the element is aesthetically pleasing,
- The surface of neodymium magnets generates a powerful magnetic field – this is a distinguishing feature,
- Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
- Considering the option of flexible molding and customization to specialized solutions, neodymium magnets can be produced in a broad palette of shapes and sizes, which expands the range of possible applications,
- Wide application in electronics industry – they find application in magnetic memories, electric motors, medical equipment, also technologically advanced constructions.
- Compactness – despite small sizes they provide effective action, making them ideal for precision applications
Disadvantages
- To avoid cracks upon strong impacts, we recommend using special steel holders. Such a solution secures the magnet and simultaneously increases its durability.
- When exposed to high temperature, neodymium magnets suffer a drop in power. Often, when the temperature exceeds 80°C, their power decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
- They rust in a humid environment. For use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
- We suggest casing - magnetic mechanism, due to difficulties in realizing nuts inside the magnet and complex shapes.
- Health risk related to microscopic parts of magnets pose a threat, in case of ingestion, which is particularly important in the aspect of protecting the youngest. Furthermore, tiny parts of these magnets can be problematic in diagnostics medical in case of swallowing.
- Due to expensive raw materials, their price is higher than average,
Holding force characteristics
Best holding force of the magnet in ideal parameters – what it depends on?
- using a base made of mild steel, acting as a ideal flux conductor
- possessing a massiveness of min. 10 mm to ensure full flux closure
- with a surface cleaned and smooth
- without any insulating layer between the magnet and steel
- for force acting at a right angle (pull-off, not shear)
- in temp. approx. 20°C
Practical lifting capacity: influencing factors
- Gap (betwixt the magnet and the plate), as even a very small clearance (e.g. 0.5 mm) can cause a decrease in force by up to 50% (this also applies to varnish, rust or dirt).
- Load vector – highest force is obtained only during pulling at a 90° angle. The force required to slide of the magnet along the plate is typically several times smaller (approx. 1/5 of the lifting capacity).
- Metal thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field penetrates through instead of generating force.
- Steel type – low-carbon steel attracts best. Alloy admixtures decrease magnetic permeability and holding force.
- Surface finish – ideal contact is possible only on smooth steel. Any scratches and bumps create air cushions, reducing force.
- Heat – neodymium magnets have a sensitivity to temperature. When it is hot they are weaker, and in frost gain strength (up to a certain limit).
Holding force was measured on the plate surface of 20 mm thickness, when a perpendicular force was applied, whereas under parallel forces the load capacity is reduced by as much as 75%. In addition, even a small distance between the magnet and the plate reduces the holding force.
Warnings
Fragile material
Despite metallic appearance, the material is brittle and cannot withstand shocks. Avoid impacts, as the magnet may crumble into sharp, dangerous pieces.
Handling guide
Use magnets consciously. Their huge power can surprise even experienced users. Stay alert and do not underestimate their force.
Cards and drives
Do not bring magnets near a purse, computer, or screen. The magnetic field can permanently damage these devices and erase data from cards.
Power loss in heat
Monitor thermal conditions. Heating the magnet to high heat will permanently weaken its properties and pulling force.
Avoid contact if allergic
Allergy Notice: The Ni-Cu-Ni coating consists of nickel. If an allergic reaction happens, immediately stop working with magnets and wear gloves.
Do not drill into magnets
Powder produced during cutting of magnets is combustible. Do not drill into magnets without proper cooling and knowledge.
Magnetic interference
Note: rare earth magnets produce a field that disrupts sensitive sensors. Maintain a safe distance from your phone, device, and navigation systems.
Life threat
Patients with a pacemaker have to keep an absolute distance from magnets. The magnetism can disrupt the operation of the implant.
Choking Hazard
Adult use only. Small elements pose a choking risk, leading to intestinal necrosis. Store out of reach of children and animals.
Bone fractures
Danger of trauma: The attraction force is so immense that it can cause blood blisters, pinching, and broken bones. Protective gloves are recommended.
