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SM 18x200 [2xM5] / N42 - magnetic separator
magnetic separator
Catalog no 130273
GTIN/EAN: 5906301812753
Diameter Ø
18 mm [±1 mm]
Height
200 mm [±1 mm]
Weight
0.01 g
Magnetic Flux
~ 5 400 Gauss [±5%]
442.80 ZŁ with VAT / pcs + price for transport
360.00 ZŁ net + 23% VAT / pcs
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Product card - SM 18x200 [2xM5] / N42 - magnetic separator
Specification / characteristics - SM 18x200 [2xM5] / N42 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130273 |
| GTIN/EAN | 5906301812753 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 18 mm [±1 mm] |
| Height | 200 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 - 9 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 18x200 [2xM5] / N42
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 18 | mm |
| Total length | 200 | mm (L) |
| Active length | 164 | mm |
| Section count | 7 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~387 | g |
| Active area | 93 | 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 (7 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% |
Ecology and recycling (GPSR)
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
Other offers
Strengths and weaknesses of rare earth magnets.
Benefits
- They virtually do not lose strength, because even after ten years the decline in efficiency is only ~1% (based on calculations),
- Magnets perfectly resist against demagnetization caused by ambient magnetic noise,
- The use of an aesthetic finish of noble metals (nickel, gold, silver) causes the element to be more visually attractive,
- Magnetic induction on the surface of the magnet is very high,
- 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...
- Thanks to modularity in forming and the ability to customize to specific needs,
- Key role in future technologies – they are utilized in mass storage devices, brushless drives, medical equipment, and modern systems.
- Thanks to their power density, small magnets offer high operating force, with minimal size,
Weaknesses
- At strong impacts they can break, therefore we recommend placing them in steel cases. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
- NdFeB magnets lose power when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of strength (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
- Magnets exposed to a humid environment can corrode. Therefore during using outdoors, we advise using waterproof magnets made of rubber, plastic or other material resistant to moisture
- We recommend cover - magnetic mount, due to difficulties in realizing nuts inside the magnet and complicated forms.
- Potential hazard to health – tiny shards of magnets are risky, in case of ingestion, which is particularly important in the context of child health protection. Additionally, tiny parts of these magnets are able to be problematic in diagnostics medical when they are in the body.
- Due to expensive raw materials, their price is higher than average,
Holding force characteristics
Maximum lifting force for a neodymium magnet – what it depends on?
- using a sheet made of low-carbon steel, serving as a magnetic yoke
- whose transverse dimension reaches at least 10 mm
- characterized by smoothness
- with direct contact (no paint)
- during detachment in a direction vertical to the mounting surface
- in stable room temperature
Practical aspects of lifting capacity – factors
- Space between surfaces – every millimeter of distance (caused e.g. by varnish or dirt) diminishes the magnet efficiency, often by half at just 0.5 mm.
- Pull-off angle – remember that the magnet has greatest strength perpendicularly. Under shear forces, the holding force drops significantly, often to levels of 20-30% of the maximum value.
- Plate thickness – too thin sheet does not accept the full field, causing part of the power to be lost to the other side.
- Steel type – mild steel attracts best. Higher carbon content lower magnetic properties and lifting capacity.
- Base smoothness – the smoother and more polished the surface, the better the adhesion and stronger the hold. Roughness acts like micro-gaps.
- Heat – NdFeB sinters have a negative temperature coefficient. When it is hot they are weaker, and at low temperatures gain strength (up to a certain limit).
Lifting capacity was determined by applying a polished steel plate of suitable thickness (min. 20 mm), under perpendicular detachment force, in contrast under parallel forces the lifting capacity is smaller. Moreover, even a small distance between the magnet’s surface and the plate reduces the holding force.
Safety rules for work with NdFeB magnets
Phone sensors
Note: rare earth magnets generate a field that disrupts sensitive sensors. Keep a safe distance from your mobile, tablet, and GPS.
Shattering risk
Watch out for shards. Magnets can explode upon violent connection, ejecting shards into the air. We recommend safety glasses.
Demagnetization risk
Standard neodymium magnets (grade N) lose magnetization when the temperature goes above 80°C. Damage is permanent.
Medical interference
For implant holders: Strong magnetic fields disrupt medical devices. Keep at least 30 cm distance or request help to work with the magnets.
Electronic devices
Intense magnetic fields can corrupt files on credit cards, HDDs, and storage devices. Stay away of min. 10 cm.
Conscious usage
Be careful. Rare earth magnets act from a distance and connect with huge force, often quicker than you can move away.
Metal Allergy
Allergy Notice: The Ni-Cu-Ni coating consists of nickel. If redness occurs, cease working with magnets and use protective gear.
This is not a toy
NdFeB magnets are not intended for children. Swallowing a few magnets can lead to them connecting inside the digestive tract, which poses a direct threat to life and requires urgent medical intervention.
Fire warning
Dust produced during machining of magnets is combustible. Avoid drilling into magnets unless you are an expert.
Pinching danger
Pinching hazard: The attraction force is so great that it can cause hematomas, pinching, and broken bones. Protective gloves are recommended.
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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