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SM 18x300 [2xM5] / N42 - magnetic separator
magnetic separator
Catalog no 130277
GTIN/EAN: 5906301812791
Diameter Ø
18 mm [±1 mm]
Height
300 mm [±1 mm]
Weight
0.01 g
Magnetic Flux
~ 5 400 Gauss [±5%]
664.20 ZŁ with VAT / pcs + price for transport
540.00 ZŁ net + 23% VAT / pcs
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Product card - SM 18x300 [2xM5] / N42 - magnetic separator
Specification / characteristics - SM 18x300 [2xM5] / N42 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130277 |
| GTIN/EAN | 5906301812791 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 18 mm [±1 mm] |
| Height | 300 mm [±1 mm] |
| Weight | 0.01 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 5 400 Gauss [±5%] |
| Size/Mount Quantity | 2xM5 |
| Polarity | circumferential - 13 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% |
Ecology and recycling (GPSR)
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
Other proposals
Pros as well as cons of rare earth magnets.
Advantages
- They retain magnetic properties for almost 10 years – the drop is just ~1% (based on simulations),
- They show high resistance to demagnetization induced by presence of other magnetic fields,
- Thanks to the glossy finish, the plating of nickel, gold, or silver-plated gives an visually attractive appearance,
- Neodymium magnets create maximum magnetic induction on a small surface, which allows for strong attraction,
- Thanks to resistance to high temperature, they are capable of working (depending on the form) even at temperatures up to 230°C and higher...
- Thanks to modularity in constructing and the ability to customize to individual projects,
- Key role in innovative solutions – they are commonly used in data components, brushless drives, precision medical tools, as well as complex engineering applications.
- Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in tiny dimensions, which allows their use in miniature devices
Limitations
- Brittleness is one of their disadvantages. Upon strong impact they can fracture. We advise keeping them in a strong case, which not only secures them against impacts but also raises their 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
- When exposed to humidity, magnets start to rust. To use them in conditions outside, it is recommended to use protective magnets, such as those in rubber or plastics, which prevent oxidation and corrosion.
- Due to limitations in producing threads and complex shapes in magnets, we recommend using casing - magnetic holder.
- Potential hazard related to microscopic parts of magnets are risky, in case of ingestion, which gains importance in the context of child health protection. Furthermore, tiny parts of these magnets can complicate diagnosis medical after entering the body.
- Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications
Pull force analysis
Highest magnetic holding force – what affects it?
- with the contact of a sheet made of low-carbon steel, guaranteeing full magnetic saturation
- with a thickness minimum 10 mm
- with a plane cleaned and smooth
- under conditions of no distance (metal-to-metal)
- for force acting at a right angle (pull-off, not shear)
- at temperature room level
What influences lifting capacity in practice
- Space between surfaces – even a fraction of a millimeter of separation (caused e.g. by varnish or unevenness) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
- Angle of force application – maximum parameter is obtained only during perpendicular pulling. The force required to slide of the magnet along the plate is typically many times lower (approx. 1/5 of the lifting capacity).
- Wall thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field passes through the material instead of converting into lifting capacity.
- Steel grade – the best choice is high-permeability steel. Stainless steels may generate lower lifting capacity.
- Base smoothness – the more even the surface, the better the adhesion and stronger the hold. Unevenness creates an air distance.
- Thermal environment – heating the magnet results in weakening of induction. It is worth remembering the thermal limit for a given model.
Holding force was tested on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, however under attempts to slide the magnet the lifting capacity is smaller. Moreover, even a minimal clearance between the magnet and the plate lowers the lifting capacity.
Warnings
GPS Danger
Be aware: rare earth magnets produce a field that interferes with precision electronics. Maintain a safe distance from your phone, device, and GPS.
Handling rules
Be careful. Neodymium magnets attract from a distance and connect with huge force, often quicker than you can react.
Risk of cracking
Neodymium magnets are sintered ceramics, which means they are fragile like glass. Collision of two magnets will cause them breaking into small pieces.
Choking Hazard
NdFeB magnets are not toys. Swallowing multiple magnets may result in them attracting across intestines, which constitutes a critical condition and requires urgent medical intervention.
Metal Allergy
Allergy Notice: The nickel-copper-nickel coating contains nickel. If redness occurs, immediately stop handling magnets and wear gloves.
Operating temperature
Standard neodymium magnets (grade N) undergo demagnetization when the temperature goes above 80°C. This process is irreversible.
Finger safety
Large magnets can crush fingers in a fraction of a second. Do not put your hand between two strong magnets.
Keep away from computers
Powerful magnetic fields can destroy records on payment cards, HDDs, and storage devices. Maintain a gap of at least 10 cm.
Medical implants
Warning for patients: Strong magnetic fields disrupt electronics. Maintain at least 30 cm distance or ask another person to work with the magnets.
Fire risk
Mechanical processing of neodymium magnets carries a risk of fire hazard. Magnetic powder reacts violently with oxygen and is hard to extinguish.
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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