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SM 25x300 [2xM8] / N52 - magnetic separator
magnetic separator
Catalog no 130373
GTIN/EAN: 5906301813217
Diameter Ø
25 mm [±1 mm]
Height
300 mm [±1 mm]
Weight
1160 g
Magnetic Flux
~ 8 500 Gauss [±5%]
910.20 ZŁ with VAT / pcs + price for transport
740.00 ZŁ net + 23% VAT / pcs
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Product card - SM 25x300 [2xM8] / N52 - magnetic separator
Specification / characteristics - SM 25x300 [2xM8] / N52 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130373 |
| GTIN/EAN | 5906301813217 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 25 mm [±1 mm] |
| Height | 300 mm [±1 mm] |
| Weight | 1160 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 500 Gauss [±5%] |
| Size/Mount Quantity | M8x2 |
| Polarity | circumferential - 11 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 25x300 [2xM8] / N52
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 25 | mm |
| Total length | 300 | mm (L) |
| Active length | 264 | mm |
| Section count | 11 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~1119 | g |
| Active area | 207 | 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 (11 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 |
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Strengths as well as weaknesses of Nd2Fe14B magnets.
Benefits
- They retain attractive force for almost 10 years – the drop is just ~1% (based on simulations),
- They maintain their magnetic properties even under external field action,
- The use of an elegant coating of noble metals (nickel, gold, silver) causes the element to have aesthetics,
- Neodymium magnets achieve maximum magnetic induction on a their surface, which allows for strong attraction,
- Thanks to resistance to high temperature, they are able to function (depending on the form) even at temperatures up to 230°C and higher...
- In view of the ability of free shaping and adaptation to custom solutions, neodymium magnets can be created in a variety of geometric configurations, which makes them more universal,
- Fundamental importance in high-tech industry – they find application in computer drives, electromotive mechanisms, diagnostic systems, and complex engineering applications.
- Compactness – despite small sizes they provide effective action, making them ideal for precision applications
Limitations
- Susceptibility to cracking is one of their disadvantages. Upon strong impact they can break. We advise keeping them in a strong case, which not only protects them against impacts but also raises their durability
- We warn that neodymium magnets can reduce their strength at high temperatures. To prevent this, we recommend our specialized [AH] magnets, which work effectively even at 230°C.
- They rust in a humid environment. For use outdoors we advise using waterproof magnets e.g. in rubber, plastic
- Limited ability of producing threads in the magnet and complex shapes - recommended is cover - magnet mounting.
- Potential hazard related to microscopic parts of magnets pose a threat, in case of ingestion, which is particularly important in the aspect of protecting the youngest. It is also worth noting that small components of these devices can complicate diagnosis medical when they are in the body.
- Due to neodymium price, their price exceeds standard values,
Lifting parameters
Maximum magnetic pulling force – what affects it?
- on a plate made of structural steel, optimally conducting the magnetic flux
- possessing a thickness of at least 10 mm to avoid saturation
- characterized by even structure
- with total lack of distance (without paint)
- under axial force direction (90-degree angle)
- at ambient temperature room level
Magnet lifting force in use – key factors
- Gap between surfaces – every millimeter of distance (caused e.g. by varnish or unevenness) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
- Pull-off angle – remember that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the maximum value.
- Plate thickness – insufficiently thick steel does not close the flux, causing part of the power to be escaped into the air.
- Material composition – not every steel reacts the same. Alloy additives weaken the attraction effect.
- Surface finish – full contact is possible only on smooth steel. Any scratches and bumps create air cushions, reducing force.
- Thermal factor – hot environment weakens pulling force. Exceeding the limit temperature can permanently demagnetize the magnet.
Holding force was checked on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, whereas under shearing force the lifting capacity is smaller. In addition, even a minimal clearance between the magnet’s surface and the plate reduces the lifting capacity.
H&S for magnets
Caution required
Before starting, read the rules. Uncontrolled attraction can break the magnet or injure your hand. Think ahead.
Electronic devices
Intense magnetic fields can corrupt files on payment cards, HDDs, and storage devices. Maintain a gap of min. 10 cm.
Compass and GPS
A powerful magnetic field interferes with the operation of compasses in smartphones and navigation systems. Do not bring magnets close to a smartphone to prevent breaking the sensors.
Metal Allergy
Some people have a hypersensitivity to Ni, which is the standard coating for neodymium magnets. Prolonged contact might lead to skin redness. It is best to wear safety gloves.
Bodily injuries
Danger of trauma: The attraction force is so great that it can result in blood blisters, crushing, and broken bones. Protective gloves are recommended.
Implant safety
Life threat: Strong magnets can turn off heart devices and defibrillators. Stay away if you have electronic implants.
Magnet fragility
Despite metallic appearance, the material is delicate and not impact-resistant. Avoid impacts, as the magnet may crumble into sharp, dangerous pieces.
Flammability
Fire hazard: Neodymium dust is highly flammable. Avoid machining magnets without safety gear as this risks ignition.
Heat warning
Keep cool. NdFeB magnets are susceptible to temperature. If you require resistance above 80°C, ask us about special high-temperature series (H, SH, UH).
Choking Hazard
Strictly keep magnets away from children. Risk of swallowing is significant, and the effects of magnets connecting inside the body are tragic.
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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