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SM 18x275 [2xM5] / N42 - magnetic separator
magnetic separator
Catalog no 130276
GTIN/EAN: 5906301812784
Diameter Ø
18 mm [±1 mm]
Height
275 mm [±1 mm]
Weight
0.01 g
Magnetic Flux
~ 5 400 Gauss [±5%]
608.85 ZŁ with VAT / pcs + price for transport
495.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Technical details - SM 18x275 [2xM5] / N42 - magnetic separator
Specification / characteristics - SM 18x275 [2xM5] / N42 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130276 |
| GTIN/EAN | 5906301812784 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 18 mm [±1 mm] |
| Height | 275 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 - 12 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 18x275 [2xM5] / N42
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 18 | mm |
| Total length | 275 | mm (L) |
| Active length | 239 | mm |
| Section count | 10 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~532 | g |
| Active area | 135 | 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 (10 sections)
Chart 3: Temperature performance
Material specification
| 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 |
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Pros and cons of neodymium magnets.
Advantages
- They retain magnetic properties for almost 10 years – the loss is just ~1% (based on simulations),
- They have excellent resistance to magnetic field loss as a result of external fields,
- By applying a reflective coating of nickel, the element has an elegant look,
- Magnetic induction on the surface of the magnet is extremely intense,
- Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and are able to act (depending on the form) even at a temperature of 230°C or more...
- Thanks to the ability of precise shaping and customization to unique requirements, magnetic components can be produced in a broad palette of shapes and sizes, which expands the range of possible applications,
- Fundamental importance in electronics industry – they are used in magnetic memories, motor assemblies, precision medical tools, also multitasking production systems.
- Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in compact dimensions, which makes them useful in compact constructions
Cons
- They are prone to damage upon heavy impacts. To avoid cracks, it is worth securing magnets using a steel holder. Such protection not only shields the magnet but also improves its resistance to damage
- NdFeB magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of power (a factor is the shape as well as dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are very resistant to heat
- When exposed to humidity, magnets usually rust. To use them in conditions outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation and corrosion.
- We recommend a housing - magnetic mechanism, due to difficulties in producing threads inside the magnet and complicated forms.
- Potential hazard related to microscopic parts of magnets pose a threat, when accidentally swallowed, which becomes key in the context of child safety. Additionally, tiny parts of these devices are able to disrupt the diagnostic process medical after entering the body.
- With mass production the cost of neodymium magnets is economically unviable,
Holding force characteristics
Maximum holding power of the magnet – what affects it?
- with the application of a sheet made of low-carbon steel, guaranteeing maximum field concentration
- whose transverse dimension equals approx. 10 mm
- with a surface free of scratches
- with direct contact (without coatings)
- for force applied at a right angle (in the magnet axis)
- in neutral thermal conditions
Determinants of practical lifting force of a magnet
- Distance (betwixt the magnet and the plate), since even a very small clearance (e.g. 0.5 mm) results in a drastic drop in force by up to 50% (this also applies to paint, rust or dirt).
- Force direction – catalog parameter refers to detachment vertically. When applying parallel force, the magnet exhibits much less (typically approx. 20-30% of maximum force).
- Substrate thickness – for full efficiency, the steel must be sufficiently thick. Paper-thin metal restricts the attraction force (the magnet "punches through" it).
- Metal type – not every steel attracts identically. Alloy additives worsen the attraction effect.
- Surface finish – ideal contact is obtained only on polished steel. Rough texture create air cushions, reducing force.
- Temperature influence – hot environment reduces magnetic field. Too high temperature can permanently demagnetize the magnet.
Holding force was checked on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, in contrast under attempts to slide the magnet the load capacity is reduced by as much as fivefold. In addition, even a minimal clearance between the magnet and the plate lowers the load capacity.
Safety rules for work with neodymium magnets
This is not a toy
Strictly store magnets out of reach of children. Ingestion danger is high, and the consequences of magnets clamping inside the body are fatal.
GPS and phone interference
GPS units and mobile phones are extremely sensitive to magnetism. Direct contact with a strong magnet can decalibrate the sensors in your phone.
Implant safety
Individuals with a ICD must keep an safe separation from magnets. The magnetic field can interfere with the operation of the implant.
Caution required
Be careful. Neodymium magnets attract from a distance and snap with huge force, often faster than you can react.
Electronic hazard
Equipment safety: Neodymium magnets can ruin payment cards and sensitive devices (pacemakers, hearing aids, timepieces).
Avoid contact if allergic
Some people suffer from a hypersensitivity to Ni, which is the typical protective layer for NdFeB magnets. Extended handling can result in dermatitis. We recommend wear protective gloves.
Pinching danger
Risk of injury: The pulling power is so immense that it can cause blood blisters, crushing, and broken bones. Protective gloves are recommended.
Maximum temperature
Regular neodymium magnets (grade N) lose power when the temperature exceeds 80°C. The loss of strength is permanent.
Magnet fragility
Neodymium magnets are sintered ceramics, which means they are prone to chipping. Collision of two magnets leads to them breaking into shards.
Do not drill into magnets
Powder generated during cutting of magnets is combustible. Avoid drilling into magnets without proper cooling and knowledge.
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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