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SM 32x300 [2xM8] / N42 - magnetic separator
magnetic separator
Catalog no 130300
GTIN/EAN: 5906301812937
Diameter Ø
32 mm [±1 mm]
Height
300 mm [±1 mm]
Weight
1610 g
Magnetic Flux
~ 8 000 Gauss [±5%]
897.90 ZŁ with VAT / pcs + price for transport
730.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Lifting power along with shape of magnets can be verified on our
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Technical details - SM 32x300 [2xM8] / N42 - magnetic separator
Specification / characteristics - SM 32x300 [2xM8] / N42 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130300 |
| GTIN/EAN | 5906301812937 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 32 mm [±1 mm] |
| Height | 300 mm [±1 mm] |
| Weight | 1610 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 000 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| Polarity | circumferential - 11 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 32x300 [2xM8] / N42
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 32 | mm |
| Total length | 300 | mm (L) |
| Active length | 264 | mm |
| Section count | 11 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~1834 | g |
| Active area | 265 | 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 (11 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% |
Environmental data
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
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Strengths as well as weaknesses of Nd2Fe14B magnets.
Benefits
- They virtually do not lose power, because even after ten years the performance loss is only ~1% (in laboratory conditions),
- They are extremely resistant to demagnetization induced by external field influence,
- By using a lustrous layer of silver, the element acquires an modern look,
- Magnets possess excellent magnetic induction on the working surface,
- Thanks to resistance to high temperature, they can operate (depending on the shape) even at temperatures up to 230°C and higher...
- Thanks to flexibility in shaping and the ability to customize to individual projects,
- Versatile presence in electronics industry – they serve a role in hard drives, brushless drives, diagnostic systems, as well as complex engineering applications.
- Compactness – despite small sizes they provide effective action, making them ideal for precision applications
Weaknesses
- They are prone to damage upon heavy impacts. To avoid cracks, it is worth protecting magnets in special housings. Such protection not only protects the magnet but also improves its resistance to damage
- Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of power (a factor is the shape and 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 rust in a humid environment - during use outdoors we advise using waterproof magnets e.g. in rubber, plastic
- Limited possibility of creating nuts in the magnet and complex shapes - preferred is casing - mounting mechanism.
- Potential hazard related to microscopic parts of magnets pose a threat, if swallowed, which becomes key in the aspect of protecting the youngest. It is also worth noting that tiny parts of these magnets are able to disrupt the diagnostic process medical in case of swallowing.
- Due to neodymium price, their price is relatively high,
Pull force analysis
Magnetic strength at its maximum – what it depends on?
- on a plate made of mild steel, optimally conducting the magnetic flux
- whose transverse dimension reaches at least 10 mm
- with a surface cleaned and smooth
- without any air gap between the magnet and steel
- under perpendicular force vector (90-degree angle)
- in stable room temperature
Determinants of lifting force in real conditions
- Gap between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by varnish or unevenness) drastically reduces the pulling force, often by half at just 0.5 mm.
- Loading method – declared lifting capacity refers to detachment vertically. When slipping, the magnet holds significantly lower power (often approx. 20-30% of maximum force).
- Wall thickness – the thinner the sheet, the weaker the hold. Magnetic flux passes through the material instead of generating force.
- Metal type – not every steel attracts identically. Alloy additives worsen the attraction effect.
- Surface condition – ground elements guarantee perfect abutment, which improves field saturation. Uneven metal reduce efficiency.
- Heat – neodymium magnets have a sensitivity to temperature. At higher temperatures they lose power, and at low temperatures gain strength (up to a certain limit).
Lifting capacity testing was carried out on a smooth plate of suitable thickness, under perpendicular forces, whereas under shearing force the load capacity is reduced by as much as fivefold. In addition, even a slight gap between the magnet’s surface and the plate reduces the lifting capacity.
Precautions when working with neodymium magnets
Safe operation
Exercise caution. Neodymium magnets act from a distance and snap with massive power, often quicker than you can react.
Nickel coating and allergies
Certain individuals suffer from a hypersensitivity to Ni, which is the common plating for NdFeB magnets. Extended handling can result in an allergic reaction. We suggest use safety gloves.
Product not for children
Always store magnets out of reach of children. Risk of swallowing is high, and the effects of magnets connecting inside the body are fatal.
Crushing force
Watch your fingers. Two powerful magnets will join immediately with a force of several hundred kilograms, crushing anything in their path. Exercise extreme caution!
Threat to electronics
Avoid bringing magnets near a wallet, laptop, or screen. The magnetic field can destroy these devices and wipe information from cards.
Fire risk
Fire hazard: Neodymium dust is explosive. Do not process magnets without safety gear as this risks ignition.
Magnetic interference
Remember: neodymium magnets produce a field that interferes with precision electronics. Maintain a safe distance from your mobile, tablet, and navigation systems.
Protective goggles
NdFeB magnets are sintered ceramics, which means they are fragile like glass. Impact of two magnets will cause them shattering into small pieces.
Power loss in heat
Monitor thermal conditions. Exposing the magnet to high heat will permanently weaken its magnetic structure and pulling force.
Implant safety
Warning for patients: Strong magnetic fields affect electronics. Keep minimum 30 cm distance or request help to work with the magnets.
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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