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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Technical - 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% |
Environmental data
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
Other deals
Pros and cons of rare earth magnets.
Advantages
- They have stable power, and over more than 10 years their attraction force decreases symbolically – ~1% (in testing),
- They possess excellent resistance to weakening of magnetic properties due to external fields,
- By using a reflective layer of gold, the element presents an nice look,
- Magnetic induction on the top side of the magnet turns out to be strong,
- Through (appropriate) combination of ingredients, they can achieve high thermal strength, allowing for functioning at temperatures approaching 230°C and above...
- Possibility of individual machining as well as adapting to atypical applications,
- Wide application in innovative solutions – they are utilized in data components, drive modules, medical equipment, also complex engineering applications.
- Thanks to concentrated force, small magnets offer high operating force, with minimal size,
Limitations
- To avoid cracks under impact, we suggest using special steel holders. Such a solution protects the magnet and simultaneously increases its durability.
- When exposed to high temperature, neodymium magnets experience a drop in power. Often, when the temperature exceeds 80°C, their power decreases (depending on the size and shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
- When exposed to humidity, magnets usually rust. To use them in conditions outside, it is recommended to use protective magnets, such as those in rubber or plastics, which prevent oxidation as well as corrosion.
- Due to limitations in realizing nuts and complex forms in magnets, we propose using a housing - magnetic mechanism.
- Potential hazard resulting from small fragments of magnets pose a threat, if swallowed, which is particularly important in the context of child health protection. It is also worth noting that tiny parts of these devices are able to be problematic in diagnostics medical when they are in the body.
- With large orders the cost of neodymium magnets can be a barrier,
Holding force characteristics
Highest magnetic holding force – what affects it?
- with the use of a sheet made of low-carbon steel, ensuring full magnetic saturation
- with a thickness no less than 10 mm
- with an ground touching surface
- without any clearance between the magnet and steel
- under vertical force direction (90-degree angle)
- in temp. approx. 20°C
Key elements affecting lifting force
- Distance (betwixt the magnet and the plate), since even a very small distance (e.g. 0.5 mm) results in a reduction in lifting capacity by up to 50% (this also applies to paint, corrosion or debris).
- Angle of force application – maximum parameter is obtained only during perpendicular pulling. The shear force of the magnet along the plate is usually several times lower (approx. 1/5 of the lifting capacity).
- Metal thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field penetrates through instead of converting into lifting capacity.
- Chemical composition of the base – low-carbon steel attracts best. Higher carbon content reduce magnetic permeability and holding force.
- Surface quality – the smoother and more polished the plate, the larger the contact zone and stronger the hold. Roughness creates an air distance.
- Temperature influence – high temperature weakens magnetic field. Too high temperature can permanently demagnetize the magnet.
Lifting capacity testing was conducted on plates with a smooth surface of suitable thickness, under perpendicular forces, whereas under parallel forces the holding force is lower. Moreover, even a minimal clearance between the magnet and the plate lowers the holding force.
Precautions when working with neodymium magnets
Bodily injuries
Danger of trauma: The pulling power is so immense that it can cause blood blisters, pinching, and even bone fractures. Protective gloves are recommended.
Warning for heart patients
Individuals with a pacemaker have to keep an safe separation from magnets. The magnetism can stop the functioning of the life-saving device.
Do not give to children
NdFeB magnets are not toys. Accidental ingestion of multiple magnets may result in them attracting across intestines, which poses a critical condition and requires immediate surgery.
Allergy Warning
Certain individuals experience a contact allergy to Ni, which is the common plating for neodymium magnets. Extended handling can result in an allergic reaction. We recommend use protective gloves.
Beware of splinters
Despite metallic appearance, neodymium is brittle and not impact-resistant. Do not hit, as the magnet may shatter into hazardous fragments.
Fire risk
Dust generated during cutting of magnets is flammable. Do not drill into magnets without proper cooling and knowledge.
Power loss in heat
Do not overheat. Neodymium magnets are sensitive to temperature. If you require resistance above 80°C, inquire about special high-temperature series (H, SH, UH).
Electronic devices
Data protection: Strong magnets can ruin data carriers and delicate electronics (heart implants, medical aids, timepieces).
Phone sensors
An intense magnetic field disrupts the operation of magnetometers in phones and navigation systems. Maintain magnets close to a smartphone to avoid breaking the sensors.
Caution required
Handle magnets consciously. Their huge power can surprise even professionals. Be vigilant and do not underestimate their power.
