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SM 32x250 [2xM8] / N52 - magnetic separator
magnetic separator
Catalog no 130362
GTIN/EAN: 5906301813101
Diameter Ø
32 mm [±1 mm]
Height
250 mm [±1 mm]
Weight
1285 g
Magnetic Flux
~ 10 000 Gauss [±5%]
824.10 ZŁ with VAT / pcs + price for transport
670.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Parameters along with form of neodymium magnets can be estimated with our
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Detailed specification - SM 32x250 [2xM8] / N52 - magnetic separator
Specification / characteristics - SM 32x250 [2xM8] / N52 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130362 |
| GTIN/EAN | 5906301813101 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 32 mm [±1 mm] |
| Height | 250 mm [±1 mm] |
| Weight | 1285 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 10 000 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| Polarity | circumferential - 9 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 32x250 [2xM8] / N52
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 32 | mm |
| Total length | 250 | mm (L) |
| Active length | 214 | mm |
| Section count | 9 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~1528 | g |
| Active area | 215 | 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 (9 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 |
See also proposals
Advantages as well as disadvantages of rare earth magnets.
Advantages
- Their magnetic field is maintained, and after approximately ten years it drops only by ~1% (according to research),
- They do not lose their magnetic properties even under strong external field,
- By applying a reflective coating of silver, the element presents an modern look,
- They show high magnetic induction at the operating surface, which improves attraction properties,
- Thanks to resistance to high temperature, they are capable of working (depending on the form) even at temperatures up to 230°C and higher...
- Thanks to freedom in designing and the ability to adapt to complex applications,
- Huge importance in future technologies – they are commonly used in data components, brushless drives, medical devices, and technologically advanced constructions.
- Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in compact dimensions, which allows their use in small systems
Cons
- Brittleness is one of their disadvantages. Upon intense impact they can fracture. We recommend keeping them in a strong case, which not only secures them against impacts but also increases their durability
- NdFeB magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of power (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 advise using waterproof magnets made of rubber, plastic or other material stable to moisture, in case of application outdoors
- Limited ability of producing threads in the magnet and complex shapes - recommended is casing - magnetic holder.
- Potential hazard resulting from small fragments of magnets pose a threat, if swallowed, which becomes key in the aspect of protecting the youngest. Furthermore, small elements of these devices can disrupt the diagnostic process medical after entering the body.
- High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which hinders application in large quantities
Pull force analysis
Highest magnetic holding force – what contributes to it?
- on a plate made of structural steel, perfectly concentrating the magnetic flux
- with a cross-section of at least 10 mm
- characterized by lack of roughness
- without the slightest air gap between the magnet and steel
- during detachment in a direction vertical to the mounting surface
- in stable room temperature
Practical aspects of lifting capacity – factors
- Clearance – the presence of any layer (rust, tape, gap) interrupts the magnetic circuit, which reduces power steeply (even by 50% at 0.5 mm).
- Force direction – note that the magnet holds strongest perpendicularly. Under shear forces, the capacity drops drastically, often to levels of 20-30% of the maximum value.
- Plate thickness – insufficiently thick steel does not close the flux, causing part of the flux to be wasted to the other side.
- Steel type – low-carbon steel gives the best results. Higher carbon content decrease magnetic properties and lifting capacity.
- Plate texture – ground elements guarantee perfect abutment, which increases field saturation. Uneven metal weaken the grip.
- Temperature – temperature increase results in weakening of induction. Check the maximum operating temperature for a given model.
Lifting capacity was measured with the use of a polished steel plate of suitable thickness (min. 20 mm), under perpendicular pulling force, in contrast under attempts to slide the magnet the lifting capacity is smaller. Additionally, even a minimal clearance between the magnet and the plate reduces the holding force.
Precautions when working with neodymium magnets
ICD Warning
Warning for patients: Powerful magnets affect medical devices. Keep at least 30 cm distance or request help to work with the magnets.
Product not for children
Neodymium magnets are not intended for children. Swallowing multiple magnets may result in them pinching intestinal walls, which constitutes a direct threat to life and necessitates urgent medical intervention.
Crushing force
Protect your hands. Two powerful magnets will join immediately with a force of several hundred kilograms, destroying anything in their path. Be careful!
Compass and GPS
Note: rare earth magnets produce a field that confuses precision electronics. Maintain a safe distance from your mobile, device, and GPS.
Dust is flammable
Mechanical processing of NdFeB material poses a fire hazard. Magnetic powder reacts violently with oxygen and is difficult to extinguish.
Magnets are brittle
NdFeB magnets are ceramic materials, which means they are prone to chipping. Clashing of two magnets leads to them breaking into small pieces.
Avoid contact if allergic
A percentage of the population suffer from a contact allergy to Ni, which is the common plating for neodymium magnets. Frequent touching can result in a rash. It is best to wear safety gloves.
Permanent damage
Regular neodymium magnets (grade N) undergo demagnetization when the temperature exceeds 80°C. The loss of strength is permanent.
Threat to electronics
Intense magnetic fields can corrupt files on payment cards, hard drives, and other magnetic media. Maintain a gap of min. 10 cm.
Handling rules
Handle with care. Rare earth magnets attract from a distance and snap with huge force, often quicker than you can react.
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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