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SM 32x450 [2xM8] / N42 - magnetic separator
magnetic separator
Catalog no 130303
GTIN/EAN: 5906301812968
Diameter Ø
32 mm [±1 mm]
Height
450 mm [±1 mm]
Weight
2410 g
Magnetic Flux
~ 8 000 Gauss [±5%]
1340.70 ZŁ with VAT / pcs + price for transport
1090.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Weight and structure of a neodymium magnet can be tested with our
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Detailed specification - SM 32x450 [2xM8] / N42 - magnetic separator
Specification / characteristics - SM 32x450 [2xM8] / N42 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130303 |
| GTIN/EAN | 5906301812968 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 32 mm [±1 mm] |
| Height | 450 mm [±1 mm] |
| Weight | 2410 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 000 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| Polarity | circumferential - 17 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 32x450 [2xM8] / N42
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 32 | mm |
| Total length | 450 | mm (L) |
| Active length | 414 | mm |
| Section count | 18 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~2751 | g |
| Active area | 416 | 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 (18 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% |
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 Nd2Fe14B magnets.
Benefits
- Their magnetic field remains stable, and after approximately ten years it drops only by ~1% (theoretically),
- Neodymium magnets remain extremely resistant to magnetic field loss caused by external magnetic fields,
- Thanks to the metallic finish, the plating of Ni-Cu-Ni, gold, or silver gives an aesthetic appearance,
- They are known for high magnetic induction at the operating surface, which increases their power,
- Due to their durability and thermal resistance, neodymium magnets can operate (depending on the form) even at high temperatures reaching 230°C or more...
- Possibility of precise creating and modifying to specific conditions,
- Significant place in future technologies – they are commonly used in data components, electric drive systems, advanced medical instruments, and complex engineering applications.
- Compactness – despite small sizes they provide effective action, making them ideal for precision applications
Limitations
- At strong impacts they can crack, 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 demagnetize 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 extremely resistant to heat
- Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material resistant to moisture, in case of application outdoors
- Limited ability of producing nuts in the magnet and complicated shapes - preferred is cover - magnetic holder.
- Possible danger related to microscopic parts of magnets pose a threat, in case of ingestion, which becomes key in the context of child safety. It is also worth noting that tiny parts of these products are able to disrupt the diagnostic process medical when they are in the body.
- High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which increases costs of application in large quantities
Pull force analysis
Maximum magnetic pulling force – what it depends on?
- using a plate made of low-carbon steel, acting as a circuit closing element
- possessing a thickness of minimum 10 mm to avoid saturation
- with a surface perfectly flat
- without any air gap between the magnet and steel
- during pulling in a direction vertical to the plane
- at temperature approx. 20 degrees Celsius
Practical aspects of lifting capacity – factors
- Distance (between the magnet and the plate), because even a tiny distance (e.g. 0.5 mm) results in a reduction in force by up to 50% (this also applies to paint, corrosion or debris).
- Direction of force – maximum parameter is obtained only during perpendicular pulling. The shear force of the magnet along the surface is standardly several times smaller (approx. 1/5 of the lifting capacity).
- Metal thickness – thin material does not allow full use of the magnet. Part of the magnetic field passes through the material instead of converting into lifting capacity.
- Chemical composition of the base – mild steel attracts best. Alloy steels decrease magnetic permeability and holding force.
- Plate texture – smooth surfaces guarantee perfect abutment, which increases force. Uneven metal reduce efficiency.
- Thermal environment – temperature increase causes a temporary drop of force. Check the maximum operating temperature for a given model.
Holding force was measured on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, whereas under shearing force the load capacity is reduced by as much as 5 times. Moreover, even a small distance between the magnet’s surface and the plate decreases the holding force.
H&S for magnets
Serious injuries
Pinching hazard: The attraction force is so great that it can cause hematomas, crushing, and even bone fractures. Use thick gloves.
Safe operation
Handle with care. Rare earth magnets attract from a distance and snap with massive power, often faster than you can move away.
Risk of cracking
Despite metallic appearance, the material is brittle and cannot withstand shocks. Do not hit, as the magnet may shatter into hazardous fragments.
Heat warning
Control the heat. Exposing the magnet above 80 degrees Celsius will ruin its magnetic structure and strength.
Health Danger
Health Alert: Strong magnets can deactivate heart devices and defibrillators. Stay away if you have medical devices.
GPS Danger
A powerful magnetic field interferes with the operation of compasses in phones and navigation systems. Do not bring magnets near a device to avoid breaking the sensors.
Fire warning
Machining of neodymium magnets carries a risk of fire hazard. Magnetic powder reacts violently with oxygen and is hard to extinguish.
Threat to electronics
Do not bring magnets close to a wallet, laptop, or TV. The magnetic field can destroy these devices and wipe information from cards.
Allergy Warning
Studies show that nickel (the usual finish) is a common allergen. For allergy sufferers, prevent direct skin contact or choose versions in plastic housing.
Adults only
Absolutely keep magnets out of reach of children. Ingestion danger is high, and the consequences of magnets clamping inside the body are very dangerous.
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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