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SM 32x225 [2xM8] / N52 - magnetic separator
magnetic separator
Catalog no 130361
GTIN/EAN: 5906301813095
Diameter Ø
32 mm [±1 mm]
Height
225 mm [±1 mm]
Weight
1205 g
Magnetic Flux
~ 10 000 Gauss [±5%]
676.50 ZŁ with VAT / pcs + price for transport
550.00 ZŁ net + 23% VAT / pcs
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Strength along with form of a neodymium magnet can be estimated on our
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Product card - SM 32x225 [2xM8] / N52 - magnetic separator
Specification / characteristics - SM 32x225 [2xM8] / N52 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130361 |
| GTIN/EAN | 5906301813095 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 32 mm [±1 mm] |
| Height | 225 mm [±1 mm] |
| Weight | 1205 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 10 000 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| Polarity | circumferential - 8 poles |
| Casing Tube Thickness | 1 mm |
| Manufacturing Tolerance | ±1 mm |
Magnetic properties of material N52
| properties | values | units |
|---|---|---|
| remenance Br [min. - max.] ? | 14.2-14.7 | kGs |
| remenance Br [min. - max.] ? | 1420-1470 | mT |
| coercivity bHc ? | 10.8-12.5 | kOe |
| coercivity bHc ? | 860-995 | kA/m |
| actual internal force iHc | ≥ 12 | kOe |
| actual internal force iHc | ≥ 955 | kA/m |
| energy density [min. - max.] ? | 48-53 | BH max MGOe |
| energy density [min. - max.] ? | 380-422 | 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 32x225 [2xM8] / N52
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 32 | mm |
| Total length | 225 | mm (L) |
| Active length | 189 | mm |
| Section count | 8 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~1375 | g |
| Active area | 190 | 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) | 41 | kg (theor.) |
| Induction (surface) | ~10 000 | Gauss (Max) |
Chart 2: Field profile (8 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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Advantages and disadvantages of Nd2Fe14B magnets.
Benefits
- They have unchanged lifting capacity, and over around 10 years their attraction force decreases symbolically – ~1% (in testing),
- Magnets perfectly resist against loss of magnetization caused by external fields,
- Thanks to the elegant finish, the surface of nickel, gold-plated, or silver-plated gives an modern appearance,
- Magnets are distinguished by impressive magnetic induction on the active area,
- Due to their durability and thermal resistance, neodymium magnets can operate (depending on the form) even at high temperatures reaching 230°C or more...
- Thanks to flexibility in forming and the ability to adapt to client solutions,
- Significant place in modern technologies – they are utilized in HDD drives, drive modules, medical devices, as well as industrial machines.
- Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in tiny dimensions, which makes them useful in small systems
Limitations
- They are fragile upon heavy impacts. To avoid cracks, it is worth protecting magnets using a steel holder. Such protection not only protects the magnet but also increases its resistance to damage
- NdFeB magnets lose strength 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
- Magnets exposed to a humid environment can corrode. Therefore during using outdoors, we suggest using waterproof magnets made of rubber, plastic or other material protecting against moisture
- Due to limitations in producing nuts and complex shapes in magnets, we propose using cover - magnetic mount.
- Health risk resulting from small fragments of magnets pose a threat, when accidentally swallowed, which gains importance in the context of child health protection. Furthermore, small elements of these products can disrupt the diagnostic process medical when they are in the body.
- Due to complex production process, their price is relatively high,
Pull force analysis
Optimal lifting capacity of a neodymium magnet – what affects it?
- on a block made of structural steel, optimally conducting the magnetic field
- whose transverse dimension equals approx. 10 mm
- characterized by smoothness
- under conditions of gap-free contact (metal-to-metal)
- during detachment in a direction vertical to the plane
- at room temperature
Lifting capacity in practice – influencing factors
- Distance – existence of foreign body (rust, dirt, air) interrupts the magnetic circuit, which lowers capacity rapidly (even by 50% at 0.5 mm).
- Angle of force application – highest force is reached only during perpendicular pulling. The shear force of the magnet along the plate is standardly several times smaller (approx. 1/5 of the lifting capacity).
- Base massiveness – insufficiently thick plate does not accept the full field, causing part of the power to be lost into the air.
- Material type – ideal substrate is pure iron steel. Hardened steels may attract less.
- Surface finish – full contact is possible only on polished steel. Rough texture reduce the real contact area, weakening the magnet.
- Heat – NdFeB sinters have a sensitivity to temperature. At higher temperatures they are weaker, and at low temperatures gain strength (up to a certain limit).
Holding force was measured on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, whereas 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 neodymium magnets
Heat sensitivity
Avoid heat. Neodymium magnets are susceptible to temperature. If you need resistance above 80°C, ask us about special high-temperature series (H, SH, UH).
Product not for children
These products are not intended for children. Eating multiple magnets may result in them connecting inside the digestive tract, which poses a direct threat to life and requires immediate surgery.
Do not underestimate power
Before starting, read the rules. Sudden snapping can break the magnet or injure your hand. Be predictive.
ICD Warning
People with a pacemaker should maintain an safe separation from magnets. The magnetism can stop the operation of the life-saving device.
Protective goggles
Despite metallic appearance, neodymium is brittle and not impact-resistant. Avoid impacts, as the magnet may crumble into hazardous fragments.
Finger safety
Danger of trauma: The pulling power is so immense that it can cause blood blisters, pinching, and even bone fractures. Protective gloves are recommended.
GPS Danger
GPS units and mobile phones are highly susceptible to magnetic fields. Direct contact with a powerful NdFeB magnet can permanently damage the internal compass in your phone.
Dust explosion hazard
Machining of neodymium magnets poses a fire risk. Magnetic powder reacts violently with oxygen and is hard to extinguish.
Safe distance
Intense magnetic fields can destroy records on credit cards, hard drives, and other magnetic media. Keep a distance of at least 10 cm.
Nickel coating and allergies
Some people have a hypersensitivity to Ni, which is the typical protective layer for neodymium magnets. Frequent touching may cause dermatitis. We suggest wear safety gloves.
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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