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SM 25x200 [2xM8] / N42 - magnetic separator
magnetic separator
Catalog no 130291
GTIN/EAN: 5906301812845
Diameter Ø
25 mm [±1 mm]
Height
200 mm [±1 mm]
Weight
0.01 g
Magnetic Flux
~ 6 500 Gauss [±5%]
541.20 ZŁ with VAT / pcs + price for transport
440.00 ZŁ net + 23% VAT / pcs
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Technical of the product - SM 25x200 [2xM8] / N42 - magnetic separator
Specification / characteristics - SM 25x200 [2xM8] / N42 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130291 |
| GTIN/EAN | 5906301812845 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 25 mm [±1 mm] |
| Height | 200 mm [±1 mm] |
| Weight | 0.01 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 6 500 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| Polarity | circumferential - 7 poles |
| Casing Tube Thickness | 1 mm |
| Manufacturing Tolerance | ±1 mm |
Magnetic properties of material N42
| properties | values | units |
|---|---|---|
| remenance Br [min. - max.] ? | 12.9-13.2 | kGs |
| remenance Br [min. - max.] ? | 1290-1320 | mT |
| coercivity bHc ? | 10.8-12.0 | kOe |
| coercivity bHc ? | 860-955 | kA/m |
| actual internal force iHc | ≥ 12 | kOe |
| actual internal force iHc | ≥ 955 | kA/m |
| energy density [min. - max.] ? | 40-42 | BH max MGOe |
| energy density [min. - max.] ? | 318-334 | 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 |
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% |
Environmental data
| 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 retain attractive force for almost 10 years – the loss is just ~1% (based on simulations),
- Magnets perfectly resist against demagnetization caused by external fields,
- By using a lustrous coating of nickel, the element presents an nice look,
- Magnetic induction on the top side of the magnet remains very high,
- Thanks to resistance to high temperature, they are capable of working (depending on the shape) even at temperatures up to 230°C and higher...
- Possibility of precise creating as well as modifying to atypical requirements,
- Fundamental importance in future technologies – they serve a role in hard drives, motor assemblies, precision medical tools, also technologically advanced constructions.
- Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in compact dimensions, which makes them useful in compact constructions
Cons
- At strong impacts they can crack, therefore we advise placing them in special holders. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
- Neodymium magnets lose their force 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
- When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as those in rubber or plastics, which secure oxidation as well as corrosion.
- We recommend casing - magnetic mount, due to difficulties in creating nuts inside the magnet and complicated forms.
- Potential hazard to health – tiny shards of magnets are risky, if swallowed, which gains importance in the context of child health protection. Additionally, tiny parts of these devices are able to complicate diagnosis medical when they are in the body.
- Due to neodymium price, their price exceeds standard values,
Lifting parameters
Detachment force of the magnet in optimal conditions – what it depends on?
- using a sheet made of mild steel, acting as a magnetic yoke
- whose thickness is min. 10 mm
- characterized by lack of roughness
- under conditions of gap-free contact (surface-to-surface)
- under axial force direction (90-degree angle)
- in stable room temperature
Practical aspects of lifting capacity – factors
- Clearance – the presence of any layer (paint, dirt, air) acts as an insulator, which lowers power steeply (even by 50% at 0.5 mm).
- Angle of force application – maximum parameter is available only during perpendicular pulling. The force required to slide of the magnet along the surface is usually several times lower (approx. 1/5 of the lifting capacity).
- Wall thickness – thin material does not allow full use of the magnet. Part of the magnetic field passes through the material instead of generating force.
- Material composition – different alloys reacts the same. High carbon content worsen the attraction effect.
- Surface finish – full contact is possible only on polished steel. Rough texture reduce the real contact area, reducing force.
- Temperature influence – hot environment reduces pulling force. Too high temperature can permanently demagnetize the magnet.
Lifting capacity was measured by applying a smooth steel plate of optimal thickness (min. 20 mm), under vertically applied force, whereas under shearing force the load capacity is reduced by as much as fivefold. In addition, even a small distance between the magnet and the plate decreases the lifting capacity.
Safety rules for work with neodymium magnets
Life threat
People with a pacemaker should maintain an absolute distance from magnets. The magnetic field can stop the operation of the implant.
Caution required
Be careful. Neodymium magnets attract from a distance and snap with massive power, often quicker than you can move away.
Swallowing risk
NdFeB magnets are not toys. Accidental ingestion of several magnets may result in them connecting inside the digestive tract, which constitutes a critical condition and necessitates urgent medical intervention.
Do not overheat magnets
Regular neodymium magnets (N-type) lose power when the temperature exceeds 80°C. This process is irreversible.
GPS and phone interference
Navigation devices and smartphones are extremely sensitive to magnetic fields. Close proximity with a strong magnet can ruin the sensors in your phone.
Crushing risk
Pinching hazard: The pulling power is so immense that it can result in hematomas, pinching, and even bone fractures. Protective gloves are recommended.
Combustion hazard
Dust created during cutting of magnets is flammable. Do not drill into magnets without proper cooling and knowledge.
Material brittleness
NdFeB magnets are sintered ceramics, meaning they are prone to chipping. Collision of two magnets will cause them cracking into shards.
Electronic hazard
Intense magnetic fields can erase data on payment cards, HDDs, and storage devices. Keep a distance of min. 10 cm.
Metal Allergy
Allergy Notice: The Ni-Cu-Ni coating contains nickel. If skin irritation occurs, cease working with magnets and use protective gear.
Tabela kosztu i czasu dostawy
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Płatność przy odbiorze (pobranie):
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23.00 ZŁ
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