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SM 25x350 [2xM8] / N52 - magnetic separator
magnetic separator
Catalog no 130355
GTIN/EAN: 5906301813033
Diameter Ø
25 mm [±1 mm]
Height
350 mm [±1 mm]
Weight
1360 g
Magnetic Flux
~ 8 500 Gauss [±5%]
1057.80 ZŁ with VAT / pcs + price for transport
860.00 ZŁ net + 23% VAT / pcs
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Technical of the product - SM 25x350 [2xM8] / N52 - magnetic separator
Specification / characteristics - SM 25x350 [2xM8] / N52 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130355 |
| GTIN/EAN | 5906301813033 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 25 mm [±1 mm] |
| Height | 350 mm [±1 mm] |
| Weight | 1360 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 500 Gauss [±5%] |
| Size/Mount Quantity | M8x2 |
| Polarity | circumferential - 13 poles |
| Casing Tube Thickness | 1 mm |
| Manufacturing Tolerance | ±1 mm |
Magnetic properties of material N52
| properties | values | units |
|---|---|---|
| remenance Br [min. - max.] ? | 14.2-14.7 | kGs |
| remenance Br [min. - max.] ? | 1420-1470 | mT |
| coercivity bHc ? | 10.8-12.5 | kOe |
| coercivity bHc ? | 860-995 | kA/m |
| actual internal force iHc | ≥ 12 | kOe |
| actual internal force iHc | ≥ 955 | kA/m |
| energy density [min. - max.] ? | 48-53 | BH max MGOe |
| energy density [min. - max.] ? | 380-422 | 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 25x350 [2xM8] / N52
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 25 | mm |
| Total length | 350 | mm (L) |
| Active length | 314 | mm |
| Section count | 13 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~1306 | g |
| Active area | 247 | 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) | 18.1 | kg (theor.) |
| Induction (surface) | ~8 500 | Gauss (Max) |
Chart 2: Field profile (13 sections)
Chart 3: Temperature performance
Material specification
| 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 |
Other products
Pros and cons of rare earth magnets.
Advantages
- They do not lose power, even during approximately 10 years – the drop in lifting capacity is only ~1% (based on measurements),
- They retain their magnetic properties even under close interference source,
- The use of an metallic finish of noble metals (nickel, gold, silver) causes the element to be more visually attractive,
- They are known for high magnetic induction at the operating surface, which improves attraction properties,
- Due to their durability and thermal resistance, neodymium magnets can operate (depending on the shape) even at high temperatures reaching 230°C or more...
- Possibility of custom forming and modifying to individual requirements,
- Wide application in high-tech industry – they are used in HDD drives, drive modules, medical devices, also modern systems.
- Thanks to their power density, small magnets offer high operating force, with minimal size,
Cons
- To avoid cracks under impact, we suggest using special steel housings. Such a solution secures the magnet and simultaneously improves its durability.
- Neodymium magnets lose their force under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
- Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material immune to moisture, in case of application outdoors
- Limited ability of producing nuts in the magnet and complicated shapes - preferred is casing - mounting mechanism.
- Possible danger resulting from small fragments of magnets pose a threat, if swallowed, which becomes key in the context of child safety. Additionally, small elements of these devices are able to complicate diagnosis medical after entering the body.
- High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which can limit application in large quantities
Lifting parameters
Optimal lifting capacity of a neodymium magnet – what it depends on?
- with the use of a yoke made of special test steel, ensuring maximum field concentration
- possessing a massiveness of min. 10 mm to avoid saturation
- with an ideally smooth contact surface
- with total lack of distance (no paint)
- during pulling in a direction perpendicular to the plane
- at temperature approx. 20 degrees Celsius
Determinants of lifting force in real conditions
- Air gap (between the magnet and the plate), as even a microscopic distance (e.g. 0.5 mm) results in a decrease in force by up to 50% (this also applies to paint, corrosion or dirt).
- Loading method – declared lifting capacity refers to pulling vertically. When applying parallel force, the magnet holds significantly lower power (often approx. 20-30% of nominal force).
- Plate thickness – too thin steel causes magnetic saturation, causing part of the flux to be escaped into the air.
- Chemical composition of the base – mild steel gives the best results. Alloy steels lower magnetic properties and holding force.
- Smoothness – full contact is obtained only on polished steel. Rough texture reduce the real contact area, reducing force.
- Thermal environment – heating the magnet results in weakening of force. It is worth remembering the thermal limit for a given model.
Lifting capacity testing was conducted on a smooth plate of optimal thickness, under perpendicular forces, in contrast under shearing force the load capacity is reduced by as much as 75%. Moreover, even a minimal clearance between the magnet and the plate lowers the load capacity.
H&S for magnets
Crushing risk
Large magnets can smash fingers in a fraction of a second. Never place your hand betwixt two strong magnets.
Protective goggles
NdFeB magnets are ceramic materials, meaning they are prone to chipping. Collision of two magnets will cause them shattering into small pieces.
Medical implants
Health Alert: Strong magnets can turn off pacemakers and defibrillators. Do not approach if you have electronic implants.
Demagnetization risk
Do not overheat. NdFeB magnets are susceptible to temperature. If you need resistance above 80°C, look for HT versions (H, SH, UH).
Compass and GPS
Be aware: neodymium magnets produce a field that disrupts sensitive sensors. Maintain a separation from your mobile, tablet, and navigation systems.
Metal Allergy
Studies show that nickel (standard magnet coating) is a common allergen. If your skin reacts to metals, avoid touching magnets with bare hands and opt for encased magnets.
Fire risk
Drilling and cutting of NdFeB material carries a risk of fire risk. Magnetic powder oxidizes rapidly with oxygen and is hard to extinguish.
Safe operation
Before starting, check safety instructions. Uncontrolled attraction can break the magnet or injure your hand. Think ahead.
Data carriers
Avoid bringing magnets close to a purse, computer, or TV. The magnetic field can permanently damage these devices and wipe information from cards.
Danger to the youngest
Neodymium magnets are not toys. Eating multiple magnets may result in them pinching intestinal walls, which constitutes a critical condition and requires immediate surgery.
Tabela kosztu i czasu dostawy
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Płatność przy odbiorze (pobranie):
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23.00 ZŁ
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