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SM 32x175 [2xM8] / N42 - magnetic separator
magnetic separator
Catalog no 130353
GTIN/EAN: 5906301813019
Diameter Ø
32 mm [±1 mm]
Height
175 mm [±1 mm]
Weight
940 g
Magnetic Flux
~ 8 000 Gauss [±5%]
528.90 ZŁ with VAT / pcs + price for transport
430.00 ZŁ net + 23% VAT / pcs
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Physical properties - SM 32x175 [2xM8] / N42 - magnetic separator
Specification / characteristics - SM 32x175 [2xM8] / N42 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130353 |
| GTIN/EAN | 5906301813019 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 32 mm [±1 mm] |
| Height | 175 mm [±1 mm] |
| Weight | 940 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 000 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| 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 32x175 [2xM8] / N42
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 32 | mm |
| Total length | 175 | mm (L) |
| Active length | 139 | mm |
| Section count | 6 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~1070 | g |
| Active area | 140 | 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) | 26.2 | kg (theor.) |
| Induction (surface) | ~8 000 | Gauss (Max) |
Chart 2: Field profile (6 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% |
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 rare earth magnets.
Strengths
- They virtually do not lose power, because even after 10 years the decline in efficiency is only ~1% (in laboratory conditions),
- They feature excellent resistance to magnetism drop due to external magnetic sources,
- Thanks to the shimmering finish, the layer of nickel, gold, or silver gives an visually attractive appearance,
- They feature high magnetic induction at the operating surface, which increases their power,
- Thanks to resistance to high temperature, they are capable of working (depending on the shape) even at temperatures up to 230°C and higher...
- Thanks to versatility in designing and the capacity to adapt to individual projects,
- Significant place in electronics industry – they are commonly used in mass storage devices, electric drive systems, medical devices, and other advanced devices.
- Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in small dimensions, which enables their usage in small systems
Limitations
- At very strong impacts they can break, therefore we advise placing them in strong housings. 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 power (a factor is the shape and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely 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 as well as corrosion.
- Due to limitations in creating threads and complex shapes in magnets, we recommend using cover - magnetic mount.
- Possible danger resulting from small fragments of magnets pose a threat, when accidentally swallowed, which becomes key in the aspect of protecting the youngest. Furthermore, small elements of these magnets are able to complicate diagnosis medical when they are in the body.
- Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications
Lifting parameters
Breakaway strength of the magnet in ideal conditions – what affects it?
- on a base made of mild steel, optimally conducting the magnetic flux
- whose thickness is min. 10 mm
- with an ideally smooth touching surface
- with total lack of distance (no impurities)
- under vertical force direction (90-degree angle)
- at standard ambient temperature
Magnet lifting force in use – key factors
- Space between magnet and steel – every millimeter of separation (caused e.g. by varnish or unevenness) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
- Pull-off angle – note that the magnet has greatest strength perpendicularly. Under shear forces, the holding force drops significantly, often to levels of 20-30% of the nominal value.
- Substrate thickness – for full efficiency, the steel must be adequately massive. Paper-thin metal limits the attraction force (the magnet "punches through" it).
- Material composition – different alloys attracts identically. Alloy additives weaken the attraction effect.
- Surface quality – the smoother and more polished the plate, the larger the contact zone and stronger the hold. Unevenness acts like micro-gaps.
- Thermal conditions – neodymium magnets have a negative temperature coefficient. At higher temperatures they lose power, and at low temperatures gain strength (up to a certain limit).
Lifting capacity was measured with the use of a smooth steel plate of suitable thickness (min. 20 mm), under perpendicular pulling force, however under shearing force the holding force is lower. Additionally, even a minimal clearance between the magnet’s surface and the plate lowers the holding force.
Precautions when working with NdFeB magnets
Power loss in heat
Standard neodymium magnets (N-type) lose magnetization when the temperature exceeds 80°C. This process is irreversible.
Dust explosion hazard
Fire hazard: Neodymium dust is explosive. Do not process magnets without safety gear as this risks ignition.
Sensitization to coating
A percentage of the population experience a hypersensitivity to Ni, which is the common plating for neodymium magnets. Extended handling might lead to dermatitis. It is best to use protective gloves.
Precision electronics
GPS units and mobile phones are highly susceptible to magnetism. Direct contact with a strong magnet can decalibrate the sensors in your phone.
This is not a toy
Always keep magnets away from children. Ingestion danger is significant, and the consequences of magnets clamping inside the body are fatal.
ICD Warning
Warning for patients: Strong magnetic fields disrupt medical devices. Keep at least 30 cm distance or ask another person to work with the magnets.
Handling rules
Use magnets consciously. Their huge power can shock even professionals. Stay alert and respect their power.
Bodily injuries
Big blocks can break fingers instantly. Do not place your hand betwixt two strong magnets.
Cards and drives
Do not bring magnets near a purse, laptop, or TV. The magnetic field can destroy these devices and erase data from cards.
Shattering risk
Protect your eyes. Magnets can fracture upon violent connection, ejecting shards into the air. Eye protection is mandatory.
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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