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%]
947.10 ZŁ with VAT / pcs + price for transport
770.00 ZŁ net + 23% VAT / pcs
670.00 ZŁ net was the lowest price in the last 30 days
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Technical of the product - 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
Elemental analysis
| 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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Strengths and weaknesses of Nd2Fe14B magnets.
Strengths
- They do not lose power, even after nearly 10 years – the decrease in lifting capacity is only ~1% (according to tests),
- Neodymium magnets are characterized by remarkably resistant to demagnetization caused by external magnetic fields,
- A magnet with a shiny gold surface has better aesthetics,
- Neodymium magnets ensure maximum magnetic induction on a their surface, which increases force concentration,
- Thanks to resistance to high temperature, they are capable of working (depending on the shape) even at temperatures up to 230°C and higher...
- Considering the potential of accurate forming and adaptation to individualized requirements, magnetic components can be created in a variety of forms and dimensions, which amplifies use scope,
- Fundamental importance in future technologies – they serve a role in magnetic memories, electric motors, advanced medical instruments, and modern systems.
- Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in compact dimensions, which allows their use in compact constructions
Weaknesses
- At strong impacts they can crack, therefore we advise placing them in steel cases. A metal housing provides additional protection against damage and increases the magnet's durability.
- Neodymium magnets decrease their power under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
- When exposed to humidity, magnets start to 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 realizing threads and complicated shapes in magnets, we propose using a housing - magnetic mount.
- Possible danger resulting from small fragments of magnets can be dangerous, when accidentally swallowed, which gains importance in the context of child safety. Additionally, small components of these devices are able to disrupt the diagnostic process medical after entering the body.
- High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which can limit application in large quantities
Lifting parameters
Best holding force of the magnet in ideal parameters – what contributes to it?
- using a sheet made of low-carbon steel, functioning as a ideal flux conductor
- whose thickness equals approx. 10 mm
- characterized by smoothness
- under conditions of ideal adhesion (metal-to-metal)
- for force acting at a right angle (in the magnet axis)
- in neutral thermal conditions
Magnet lifting force in use – key factors
- Gap (between the magnet and the metal), because even a very small clearance (e.g. 0.5 mm) leads to a reduction in force by up to 50% (this also applies to paint, rust or debris).
- Force direction – remember that the magnet has greatest strength perpendicularly. Under sliding down, the holding force drops drastically, often to levels of 20-30% of the maximum value.
- Substrate thickness – for full efficiency, the steel must be sufficiently thick. Thin sheet limits the attraction force (the magnet "punches through" it).
- Material composition – different alloys attracts identically. High carbon content weaken the interaction with the magnet.
- Plate texture – ground elements guarantee perfect abutment, which improves force. Rough surfaces weaken the grip.
- Heat – neodymium magnets have a sensitivity to temperature. At higher temperatures they lose power, and at low temperatures they can be stronger (up to a certain limit).
Holding force was checked on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, in contrast under parallel forces the lifting capacity is smaller. Additionally, even a minimal clearance between the magnet’s surface and the plate lowers the holding force.
Safe handling of NdFeB magnets
Fire warning
Drilling and cutting of neodymium magnets poses a fire hazard. Neodymium dust oxidizes rapidly with oxygen and is hard to extinguish.
Pacemakers
For implant holders: Powerful magnets disrupt medical devices. Maintain minimum 30 cm distance or ask another person to work with the magnets.
Immense force
Handle with care. Neodymium magnets act from a long distance and snap with massive power, often quicker than you can react.
Thermal limits
Regular neodymium magnets (N-type) lose power when the temperature goes above 80°C. Damage is permanent.
Safe distance
Equipment safety: Strong magnets can damage payment cards and sensitive devices (pacemakers, hearing aids, timepieces).
Crushing risk
Large magnets can break fingers in a fraction of a second. Under no circumstances put your hand betwixt two attracting surfaces.
Warning for allergy sufferers
Studies show that the nickel plating (standard magnet coating) is a strong allergen. If you have an allergy, avoid touching magnets with bare hands and select versions in plastic housing.
Material brittleness
NdFeB magnets are sintered ceramics, which means they are prone to chipping. Clashing of two magnets leads to them cracking into shards.
Impact on smartphones
Navigation devices and mobile phones are highly susceptible to magnetic fields. Close proximity with a strong magnet can decalibrate the internal compass in your phone.
Do not give to children
Strictly keep magnets away from children. Ingestion danger is high, and the consequences of magnets clamping inside the body are fatal.
