SM 19x225 [2xM6] / N50 - magnetic separator
magnetic separator
Catalog no 130241
GTIN/EAN: 5906301812708
- Diameter Ø
- 19 mm [±1 mm]
- Height
- 225 mm [±1 mm]
- Weight
- 0.01 g
- Magnetic Flux
- ~ 12 000 Gauss [±5%]
528.90 zł with VAT / pcs + price for transport
430.00 zł net + 23% VAT / pcs
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Physical properties - SM 19x225 [2xM6] / N50 - magnetic separator
Specification / characteristics - SM 19x225 [2xM6] / N50 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130241 |
| GTIN/EAN | 5906301812708 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 19 mm [±1 mm] |
| Height | 225 mm [±1 mm] |
| Weight | 0.01 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 12 000 Gauss [±5%] |
| Size/Mount Quantity | 2xM6 |
| Polarity | circumferential - 12 poles |
| Casing Tube Thickness | 0.5 mm |
| Manufacturing Tolerance | ±1 mm |
Magnetic properties of material N50
| properties | values | units |
|---|---|---|
| remenance Br [min. - max.] ? | 14-14.6 | kGs |
| remenance Br [min. - max.] ? | 1400-1460 | 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.] ? | 47-51 | BH max MGOe |
| energy density [min. - max.] ? | 374-406 | 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 19x225 [2xM6] / N50
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 19 | mm |
| Total length | 225 | mm (L) |
| Active length | 189 | mm |
| Section count | 8 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~485 | g |
| Active area | 113 | 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) | 20.8 | kg (theor.) |
| Induction (surface) | ~12 000 | Gauss (Max) |
Chart 2: Field profile (8 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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Strengths as well as weaknesses of rare earth magnets.
Pros
- They virtually do not lose strength, because even after ten years the performance loss is only ~1% (in laboratory conditions),
- They retain their magnetic properties even under strong external field,
- The use of an shiny coating of noble metals (nickel, gold, silver) causes the element to present itself better,
- Magnetic induction on the surface of the magnet turns out to be strong,
- Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the form) even at high temperatures reaching 230°C or more...
- Possibility of accurate creating as well as adapting to precise applications,
- Versatile presence in high-tech industry – they serve a role in data components, electric motors, precision medical tools, and complex engineering applications.
- Relatively small size with high pulling force – neodymium magnets offer high power in compact dimensions, which makes them useful in small systems
Disadvantages
- At very strong impacts they can crack, therefore we advise placing them in special holders. A metal housing provides additional protection against damage and increases the magnet's durability.
- Neodymium magnets lose their power 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 stability 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, in case of application outdoors
- We suggest a housing - magnetic mechanism, due to difficulties in realizing threads inside the magnet and complicated shapes.
- Health risk resulting from small fragments of magnets are risky, in case of ingestion, which becomes key in the context of child safety. Furthermore, small elements of these magnets are able to be problematic in diagnostics medical when they are in the body.
- High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which increases costs of application in large quantities
Pull force analysis
Optimal lifting capacity of a neodymium magnet – what it depends on?
- with the application of a sheet made of special test steel, ensuring full magnetic saturation
- whose thickness equals approx. 10 mm
- with an polished touching surface
- with direct contact (no paint)
- for force applied at a right angle (in the magnet axis)
- at room temperature
Practical lifting capacity: influencing factors
- Distance (between the magnet and the metal), as even a very small distance (e.g. 0.5 mm) can cause a decrease in force by up to 50% (this also applies to paint, corrosion or debris).
- Pull-off angle – note that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the maximum value.
- Substrate thickness – to utilize 100% power, the steel must be adequately massive. Paper-thin metal limits the attraction force (the magnet "punches through" it).
- Material composition – different alloys reacts the same. Alloy additives worsen the attraction effect.
- Plate texture – smooth surfaces guarantee perfect abutment, which increases field saturation. Uneven metal reduce efficiency.
- Thermal factor – hot environment weakens magnetic field. Too high temperature can permanently demagnetize the magnet.
Lifting capacity testing was carried out on a smooth plate of optimal thickness, under a perpendicular pulling force, in contrast under shearing force the holding force is lower. In addition, even a slight gap between the magnet’s surface and the plate lowers the load capacity.
Warnings
Hand protection
Large magnets can crush fingers in a fraction of a second. Do not put your hand between two attracting surfaces.
Fragile material
Despite metallic appearance, the material is brittle and not impact-resistant. Avoid impacts, as the magnet may crumble into hazardous fragments.
Precision electronics
GPS units and mobile phones are extremely susceptible to magnetism. Direct contact with a strong magnet can permanently damage the sensors in your phone.
Do not overheat magnets
Avoid heat. Neodymium magnets are sensitive to heat. If you need resistance above 80°C, look for special high-temperature series (H, SH, UH).
Metal Allergy
Allergy Notice: The Ni-Cu-Ni coating contains nickel. If skin irritation happens, immediately stop handling magnets and wear gloves.
Combustion hazard
Drilling and cutting of neodymium magnets poses a fire hazard. Magnetic powder reacts violently with oxygen and is hard to extinguish.
Pacemakers
Individuals with a heart stimulator should maintain an safe separation from magnets. The magnetic field can disrupt the operation of the implant.
Respect the power
Use magnets with awareness. Their powerful strength can shock even experienced users. Plan your moves and respect their power.
Choking Hazard
Only for adults. Small elements can be swallowed, causing severe trauma. Keep away from kids and pets.
Magnetic media
Powerful magnetic fields can corrupt files on payment cards, hard drives, and storage devices. Keep a distance of at least 10 cm.
