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SM 32x350 [2xM8] / N42 - magnetic separator
magnetic separator
Catalog no 130301
GTIN/EAN: 5906301812944
Diameter Ø
32 mm [±1 mm]
Height
350 mm [±1 mm]
Weight
1870 g
Magnetic Flux
~ 8 000 Gauss [±5%]
1045.50 ZŁ with VAT / pcs + price for transport
850.00 ZŁ net + 23% VAT / pcs
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Physical properties - SM 32x350 [2xM8] / N42 - magnetic separator
Specification / characteristics - SM 32x350 [2xM8] / N42 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130301 |
| GTIN/EAN | 5906301812944 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 32 mm [±1 mm] |
| Height | 350 mm [±1 mm] |
| Weight | 1870 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 000 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| 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 |
Table 1: Rod construction
SM 32x350 [2xM8] / N42
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 32 | mm |
| Total length | 350 | mm (L) |
| Active length | 314 | mm |
| Section count | 13 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~2139 | g |
| Active area | 316 | 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) | 17.3 | kg (theor.) |
| Induction (surface) | ~6 500 | Gauss (Max) |
Chart 2: Field profile (13 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 |
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Advantages as well as disadvantages of neodymium magnets.
Advantages
- They have stable power, and over around 10 years their attraction force decreases symbolically – ~1% (in testing),
- Neodymium magnets prove to be remarkably resistant to loss of magnetic properties caused by external magnetic fields,
- By applying a lustrous layer of silver, the element presents an modern look,
- They are known for high magnetic induction at the operating surface, which increases their power,
- Thanks to resistance to high temperature, they are able to function (depending on the form) even at temperatures up to 230°C and higher...
- Possibility of accurate forming as well as adapting to precise requirements,
- Huge importance in future technologies – they are utilized in computer drives, brushless drives, diagnostic systems, also other advanced devices.
- Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in tiny dimensions, which allows their use in small systems
Disadvantages
- They are fragile upon too strong impacts. To avoid cracks, it is worth securing magnets in special housings. Such protection not only protects 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 strength (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 very resistant to heat
- When exposed to humidity, magnets usually rust. For applications outside, it is recommended to use protective magnets, such as those in rubber or plastics, which secure oxidation as well as corrosion.
- Due to limitations in creating threads and complex shapes in magnets, we propose using cover - magnetic holder.
- Possible danger resulting from small fragments of magnets are risky, when accidentally swallowed, which gains importance in the aspect of protecting the youngest. It is also worth noting that small components of these devices can be problematic in diagnostics medical when they are in the body.
- High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which can limit application in large quantities
Pull force analysis
Best holding force of the magnet in ideal parameters – what it depends on?
- using a plate made of high-permeability steel, functioning as a ideal flux conductor
- with a thickness no less than 10 mm
- with an ground contact surface
- with zero gap (without impurities)
- for force applied at a right angle (in the magnet axis)
- in neutral thermal conditions
Practical lifting capacity: influencing factors
- Space between surfaces – every millimeter of distance (caused e.g. by veneer or dirt) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
- Load vector – maximum parameter is reached only during perpendicular pulling. The force required to slide of the magnet along the plate is usually many times smaller (approx. 1/5 of the lifting capacity).
- Substrate thickness – to utilize 100% power, the steel must be sufficiently thick. Paper-thin metal restricts the lifting capacity (the magnet "punches through" it).
- Plate material – mild steel gives the best results. Alloy steels decrease magnetic permeability and holding force.
- Surface condition – smooth surfaces guarantee perfect abutment, which improves field saturation. Uneven metal reduce efficiency.
- Thermal conditions – NdFeB sinters have a negative temperature coefficient. At higher temperatures they are weaker, and in frost gain strength (up to a certain limit).
Lifting capacity was assessed with the use of a polished steel plate of optimal thickness (min. 20 mm), under perpendicular pulling force, however under attempts to slide the magnet the holding force is lower. In addition, even a slight gap between the magnet and the plate lowers the load capacity.
Precautions when working with neodymium magnets
Data carriers
Avoid bringing magnets close to a purse, computer, or screen. The magnetism can destroy these devices and erase data from cards.
Beware of splinters
Protect your eyes. Magnets can explode upon violent connection, ejecting shards into the air. We recommend safety glasses.
Power loss in heat
Control the heat. Heating the magnet above 80 degrees Celsius will destroy its properties and strength.
Adults only
These products are not toys. Accidental ingestion of a few magnets can lead to them connecting inside the digestive tract, which poses a severe health hazard and requires immediate surgery.
Physical harm
Large magnets can smash fingers in a fraction of a second. Do not place your hand between two strong magnets.
Skin irritation risks
It is widely known that the nickel plating (the usual finish) is a common allergen. If you have an allergy, refrain from touching magnets with bare hands or select versions in plastic housing.
GPS Danger
A powerful magnetic field interferes with the operation of magnetometers in smartphones and GPS navigation. Do not bring magnets near a device to avoid breaking the sensors.
Handling rules
Handle with care. Rare earth magnets act from a distance and snap with massive power, often faster than you can react.
Medical implants
Individuals with a pacemaker should maintain an safe separation from magnets. The magnetism can disrupt the operation of the implant.
Dust is flammable
Combustion risk: Rare earth powder is explosive. Avoid machining magnets in home conditions as this risks ignition.
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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