SM 25x150 [2xM8] / N52 - magnetic separator
magnetic separator
Catalog no 130368
GTIN/EAN: 5906301813163
Diameter Ø
25 mm [±1 mm]
Height
150 mm [±1 mm]
Weight
0.01 g
Magnetic Flux
~ 9 500 Gauss [±5%]
467.40 ZŁ with VAT / pcs + price for transport
380.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Physical properties - SM 25x150 [2xM8] / N52 - magnetic separator
Specification / characteristics - SM 25x150 [2xM8] / N52 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130368 |
| GTIN/EAN | 5906301813163 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 25 mm [±1 mm] |
| Height | 150 mm [±1 mm] |
| Weight | 0.01 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 9 500 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| Polarity | circumferential - 5 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 |
Elemental analysis
| 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 neodymium magnets.
Strengths
- Their power remains stable, and after approximately 10 years it drops only by ~1% (theoretically),
- They retain their magnetic properties even under strong external field,
- A magnet with a metallic silver surface has better aesthetics,
- The surface of neodymium magnets generates a strong magnetic field – this is a distinguishing feature,
- Due to their durability and thermal resistance, neodymium magnets can operate (depending on the form) even at high temperatures reaching 230°C or more...
- Possibility of exact creating and adjusting to atypical conditions,
- Huge importance in innovative solutions – they are commonly used in data components, electric drive systems, diagnostic systems, also multitasking production systems.
- Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications
Limitations
- They are fragile upon heavy impacts. To avoid cracks, it is worth protecting magnets in a protective case. Such protection not only shields the magnet but also increases its resistance to damage
- Neodymium magnets lose their power under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. 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 recommend using waterproof magnets made of rubber, plastic or other material resistant to moisture, when using outdoors
- Due to limitations in producing threads and complex forms in magnets, we propose using a housing - magnetic mechanism.
- Potential hazard to health – tiny shards of magnets pose a threat, in case of ingestion, which gains importance in the context of child safety. It is also worth noting that tiny parts of these products are able to be problematic in diagnostics medical after entering the body.
- With budget limitations the cost of neodymium magnets is a challenge,
Pull force analysis
Maximum lifting capacity of the magnet – what contributes to it?
- with the contact of a yoke made of special test steel, guaranteeing maximum field concentration
- possessing a thickness of at least 10 mm to ensure full flux closure
- characterized by even structure
- with direct contact (no paint)
- during pulling in a direction perpendicular to the plane
- at ambient temperature room level
Lifting capacity in real conditions – factors
- Gap (betwixt the magnet and the metal), because even a tiny distance (e.g. 0.5 mm) results in a decrease in force by up to 50% (this also applies to varnish, corrosion or debris).
- Pull-off angle – remember that the magnet has greatest strength perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the nominal value.
- Plate thickness – too thin steel causes magnetic saturation, causing part of the power to be wasted to the other side.
- Steel grade – the best choice is pure iron steel. Cast iron may generate lower lifting capacity.
- Smoothness – full contact is possible only on smooth steel. Any scratches and bumps reduce the real contact area, reducing force.
- Thermal conditions – NdFeB sinters have a negative temperature coefficient. At higher temperatures they are weaker, and in frost gain strength (up to a certain limit).
Holding force was checked on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, in contrast under parallel forces the lifting capacity is smaller. In addition, even a minimal clearance between the magnet’s surface and the plate decreases the lifting capacity.
H&S for magnets
Product not for children
Neodymium magnets are not intended for children. Swallowing a few magnets can lead to them attracting across intestines, which poses a critical condition and requires immediate surgery.
Handling guide
Exercise caution. Neodymium magnets attract from a long distance and snap with massive power, often faster than you can move away.
Heat sensitivity
Avoid heat. NdFeB magnets are sensitive to temperature. If you require operation above 80°C, inquire about special high-temperature series (H, SH, UH).
Metal Allergy
Certain individuals have a hypersensitivity to nickel, which is the typical protective layer for NdFeB magnets. Extended handling may cause dermatitis. We recommend wear safety gloves.
Keep away from electronics
Navigation devices and mobile phones are extremely sensitive to magnetic fields. Close proximity with a powerful NdFeB magnet can decalibrate the sensors in your phone.
Combustion hazard
Dust produced during cutting of magnets is combustible. Do not drill into magnets without proper cooling and knowledge.
Fragile material
NdFeB magnets are ceramic materials, meaning they are fragile like glass. Impact of two magnets will cause them breaking into shards.
Implant safety
Health Alert: Strong magnets can turn off pacemakers and defibrillators. Do not approach if you have electronic implants.
Data carriers
Equipment safety: Strong magnets can ruin payment cards and delicate electronics (heart implants, hearing aids, timepieces).
Bodily injuries
Large magnets can crush fingers instantly. Never put your hand betwixt two attracting surfaces.
