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SM 18x125 [2xM5] / N42 - magnetic separator
magnetic separator
Catalog no 130270
GTIN/EAN: 5906301812722
Diameter Ø
18 mm [±1 mm]
Height
125 mm [±1 mm]
Weight
0.01 g
Magnetic Flux
~ 5 400 Gauss [±5%]
276.75 ZŁ with VAT / pcs + price for transport
225.00 ZŁ net + 23% VAT / pcs
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Technical - SM 18x125 [2xM5] / N42 - magnetic separator
Specification / characteristics - SM 18x125 [2xM5] / N42 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130270 |
| GTIN/EAN | 5906301812722 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 18 mm [±1 mm] |
| Height | 125 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 - 6 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 |
Table 1: Rod construction
SM 18x125 [2xM5] / N42
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 18 | mm |
| Total length | 125 | mm (L) |
| Active length | 89 | mm |
| Section count | 3 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~242 | g |
| Active area | 50 | 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) | 3.8 | kg (theor.) |
| Induction (surface) | ~5 400 | Gauss (Max) |
Chart 2: Field profile (3 sections)
Chart 3: Temperature performance
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 offers
Pros and cons of rare earth magnets.
Strengths
- They have constant strength, and over nearly 10 years their attraction force decreases symbolically – ~1% (in testing),
- They retain their magnetic properties even under external field action,
- By covering with a decorative layer of nickel, the element presents an modern look,
- Magnets possess huge magnetic induction on the outer side,
- Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
- Considering the option of flexible shaping and customization to individualized requirements, magnetic components can be created in a broad palette of forms and dimensions, which expands the range of possible applications,
- Fundamental importance in future technologies – they are commonly used in HDD drives, electromotive mechanisms, advanced medical instruments, as well as other advanced devices.
- Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in compact dimensions, which enables their usage in miniature devices
Limitations
- They are fragile upon too strong impacts. To avoid cracks, it is worth securing magnets using a steel holder. Such protection not only protects the magnet but also improves its resistance to damage
- When exposed to high temperature, neodymium magnets experience a drop in power. Often, when the temperature exceeds 80°C, their strength 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
- They oxidize in a humid environment - during use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
- Due to limitations in producing threads and complex shapes in magnets, we recommend using casing - magnetic holder.
- Health risk related to microscopic parts of magnets are risky, when accidentally swallowed, which becomes key in the aspect of protecting the youngest. It is also worth noting that small components of these products can complicate diagnosis medical when they are in the body.
- High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which hinders application in large quantities
Pull force analysis
Maximum holding power of the magnet – what it depends on?
- using a base made of low-carbon steel, serving as a circuit closing element
- whose transverse dimension is min. 10 mm
- with an ideally smooth touching surface
- under conditions of ideal adhesion (metal-to-metal)
- under axial application of breakaway force (90-degree angle)
- at temperature approx. 20 degrees Celsius
Determinants of practical lifting force of a magnet
- Distance (betwixt the magnet and the plate), since even a microscopic distance (e.g. 0.5 mm) results in a drastic drop in force by up to 50% (this also applies to paint, corrosion or debris).
- Pull-off angle – note that the magnet has greatest strength perpendicularly. Under sliding down, the holding force drops drastically, often to levels of 20-30% of the maximum value.
- Metal thickness – thin material does not allow full use of the magnet. Part of the magnetic field penetrates through instead of converting into lifting capacity.
- Chemical composition of the base – low-carbon steel attracts best. Alloy steels decrease magnetic properties and lifting capacity.
- Plate texture – ground elements ensure maximum contact, which improves force. Uneven metal reduce efficiency.
- Thermal factor – high temperature reduces pulling force. Too high temperature can permanently demagnetize the magnet.
Lifting capacity testing was carried out on plates with a smooth surface of suitable thickness, under perpendicular forces, however under parallel forces the load capacity is reduced by as much as 5 times. In addition, even a slight gap between the magnet’s surface and the plate decreases the lifting capacity.
Safe handling of NdFeB magnets
Electronic devices
Do not bring magnets close to a purse, laptop, or TV. The magnetic field can destroy these devices and wipe information from cards.
Fragile material
Beware of splinters. Magnets can fracture upon violent connection, ejecting sharp fragments into the air. Eye protection is mandatory.
Crushing risk
Large magnets can break fingers instantly. Do not put your hand between two strong magnets.
Danger to the youngest
These products are not toys. Accidental ingestion of several magnets can lead to them connecting inside the digestive tract, which poses a critical condition and necessitates urgent medical intervention.
Maximum temperature
Standard neodymium magnets (N-type) lose power when the temperature surpasses 80°C. The loss of strength is permanent.
Warning for heart patients
Medical warning: Strong magnets can deactivate heart devices and defibrillators. Stay away if you have medical devices.
Machining danger
Dust created during cutting of magnets is combustible. Avoid drilling into magnets unless you are an expert.
Nickel allergy
Studies show that nickel (standard magnet coating) is a potent allergen. For allergy sufferers, avoid touching magnets with bare hands or choose versions in plastic housing.
Conscious usage
Handle with care. Rare earth magnets attract from a long distance and snap with huge force, often faster than you can move away.
Threat to navigation
Navigation devices and smartphones are extremely sensitive to magnetism. Close proximity with a powerful NdFeB magnet can permanently damage the internal compass in your phone.
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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