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SM 25x375 [2xM8] / N52 - magnetic separator
magnetic separator
Catalog no 130363
GTIN/EAN: 5906301813118
Diameter Ø
25 mm [±1 mm]
Height
375 mm [±1 mm]
Weight
1460 g
Magnetic Flux
~ 9 500 Gauss [±5%]
1131.60 ZŁ with VAT / pcs + price for transport
920.00 ZŁ net + 23% VAT / pcs
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Detailed specification - SM 25x375 [2xM8] / N52 - magnetic separator
Specification / characteristics - SM 25x375 [2xM8] / N52 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130363 |
| GTIN/EAN | 5906301813118 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 25 mm [±1 mm] |
| Height | 375 mm [±1 mm] |
| Weight | 1460 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 9 500 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| Polarity | circumferential - 14 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 25x375 [2xM8] / N52
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 25 | mm |
| Total length | 375 | mm (L) |
| Active length | 339 | mm |
| Section count | 14 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~1399 | g |
| Active area | 266 | 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) | 22.6 | kg (theor.) |
| Induction (surface) | ~9 500 | Gauss (Max) |
Chart 2: Field profile (14 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 Nd2Fe14B magnets.
Benefits
- They do not lose magnetism, even during nearly 10 years – the decrease in power is only ~1% (based on measurements),
- They maintain their magnetic properties even under strong external field,
- The use of an refined finish of noble metals (nickel, gold, silver) causes the element to look better,
- The surface of neodymium magnets generates a strong magnetic field – this is a key feature,
- Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the shape) even at high temperatures reaching 230°C or more...
- Possibility of precise modeling and optimizing to specific applications,
- Versatile presence in modern industrial fields – they are used in hard drives, brushless drives, diagnostic systems, and other advanced devices.
- Thanks to their power density, small magnets offer high operating force, with minimal size,
Limitations
- Susceptibility to cracking is one of their disadvantages. Upon intense impact they can break. We recommend keeping them in a special holder, which not only protects them against impacts but also raises their durability
- NdFeB magnets lose strength when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of strength (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
- Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material immune to moisture, in case of application outdoors
- Due to limitations in producing nuts and complex shapes in magnets, we propose using cover - magnetic mechanism.
- Potential hazard to health – tiny shards of magnets pose a threat, in case of ingestion, which becomes key in the context of child safety. Additionally, small elements of these magnets can disrupt the diagnostic process medical in case of swallowing.
- Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications
Holding force characteristics
Magnetic strength at its maximum – what contributes to it?
- on a block made of structural steel, perfectly concentrating the magnetic flux
- with a thickness minimum 10 mm
- with a surface free of scratches
- without the slightest clearance between the magnet and steel
- during detachment in a direction perpendicular to the mounting surface
- at conditions approx. 20°C
Key elements affecting lifting force
- Gap between magnet and steel – every millimeter of separation (caused e.g. by veneer or dirt) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
- Force direction – remember that the magnet holds strongest perpendicularly. Under shear forces, the capacity drops drastically, often to levels of 20-30% of the maximum value.
- Metal thickness – thin material does not allow full use of the magnet. Part of the magnetic field penetrates through instead of converting into lifting capacity.
- Material composition – different alloys reacts the same. High carbon content worsen the interaction with the magnet.
- Plate texture – smooth surfaces ensure maximum contact, which increases force. Uneven metal weaken the grip.
- Temperature influence – hot environment weakens magnetic field. Exceeding the limit temperature can permanently demagnetize the magnet.
Lifting capacity was measured using a polished steel plate of suitable thickness (min. 20 mm), under perpendicular pulling force, whereas under parallel forces the load capacity is reduced by as much as fivefold. Additionally, even a slight gap between the magnet’s surface and the plate decreases the lifting capacity.
Safety rules for work with NdFeB magnets
Beware of splinters
Despite metallic appearance, neodymium is delicate and cannot withstand shocks. Avoid impacts, as the magnet may crumble into hazardous fragments.
Keep away from children
NdFeB magnets are not suitable for play. Eating multiple magnets can lead to them connecting inside the digestive tract, which poses a critical condition and necessitates urgent medical intervention.
Impact on smartphones
An intense magnetic field disrupts the functioning of compasses in smartphones and GPS navigation. Maintain magnets near a smartphone to prevent breaking the sensors.
Thermal limits
Monitor thermal conditions. Exposing the magnet above 80 degrees Celsius will ruin its properties and strength.
Flammability
Powder generated during machining of magnets is self-igniting. Do not drill into magnets unless you are an expert.
Hand protection
Large magnets can smash fingers instantly. Under no circumstances put your hand betwixt two attracting surfaces.
Allergy Warning
It is widely known that nickel (standard magnet coating) is a common allergen. If you have an allergy, prevent touching magnets with bare hands and choose coated magnets.
Powerful field
Before use, read the rules. Uncontrolled attraction can break the magnet or injure your hand. Think ahead.
Electronic devices
Intense magnetic fields can erase data on payment cards, HDDs, and storage devices. Keep a distance of at least 10 cm.
Danger to pacemakers
Warning for patients: Powerful magnets affect medical devices. Keep at least 30 cm distance or ask another person to work with the magnets.
Tabela kosztu i czasu dostawy
Płatność przed wysyłką:
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Przesyłka będzie u Ciebie za 2-3 dni
14.99 ZŁ
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12.30 ZŁ
Płatność przy odbiorze (pobranie):
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Przesyłka będzie u Ciebie za 1-2 dni
23.00 ZŁ
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