SM 32x325 [2xM8] / N52 - magnetic separator
magnetic separator
Catalog no 130460
GTIN/EAN: 5906301813316
Diameter Ø
32 mm [±1 mm]
Height
325 mm [±1 mm]
Weight
1800 g
Magnetic Flux
~ 10 000 Gauss [±5%]
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Technical parameters - SM 32x325 [2xM8] / N52 - magnetic separator
Specification / characteristics - SM 32x325 [2xM8] / N52 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130460 |
| GTIN/EAN | 5906301813316 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 32 mm [±1 mm] |
| Height | 325 mm [±1 mm] |
| Weight | 1800 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 10 000 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| Polarity | circumferential - 12 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 32x325 [2xM8] / N52
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 32 | mm |
| Total length | 325 | mm (L) |
| Active length | 289 | mm |
| Section count | 12 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~1986 | g |
| Active area | 291 | 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 (12 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 |
Other products
Pros and cons of neodymium magnets.
Strengths
- They virtually do not lose power, because even after ten years the performance loss is only ~1% (in laboratory conditions),
- They show high resistance to demagnetization induced by external magnetic fields,
- By covering with a smooth layer of silver, the element gains an modern look,
- They feature high magnetic induction at the operating surface, which improves attraction properties,
- 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 individual machining as well as adapting to individual requirements,
- Wide application in high-tech industry – they are used in mass storage devices, electromotive mechanisms, precision medical tools, as well as industrial machines.
- Thanks to efficiency per cm³, small magnets offer high operating force, with minimal size,
Limitations
- They are prone to damage upon too strong impacts. To avoid cracks, it is worth securing magnets in a protective case. Such protection not only protects the magnet but also increases its resistance to damage
- We warn that neodymium magnets can reduce their power at high temperatures. To prevent this, we recommend our specialized [AH] magnets, which work effectively even at 230°C.
- Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material stable to moisture, in case of application outdoors
- Limited possibility of creating nuts in the magnet and complex shapes - recommended is a housing - magnetic holder.
- Health risk resulting from small fragments of magnets can be dangerous, when accidentally swallowed, which becomes key in the aspect of protecting the youngest. It is also worth noting that small components of these devices can disrupt the diagnostic process medical after entering the body.
- Due to expensive raw materials, their price is relatively high,
Pull force analysis
Magnetic strength at its maximum – what contributes to it?
- on a block made of mild steel, effectively closing the magnetic flux
- with a thickness of at least 10 mm
- with an polished contact surface
- under conditions of ideal adhesion (metal-to-metal)
- under axial force direction (90-degree angle)
- in temp. approx. 20°C
Practical aspects of lifting capacity – factors
- Distance – existence of any layer (paint, tape, gap) acts as an insulator, which reduces power steeply (even by 50% at 0.5 mm).
- Force direction – catalog parameter refers to pulling vertically. When applying parallel force, the magnet holds significantly lower power (often approx. 20-30% of maximum force).
- Substrate thickness – to utilize 100% power, the steel must be sufficiently thick. Thin sheet limits the attraction force (the magnet "punches through" it).
- Material composition – different alloys reacts the same. High carbon content worsen the attraction effect.
- Surface quality – the more even the plate, the larger the contact zone and higher the lifting capacity. Roughness creates an air distance.
- Thermal environment – heating the magnet results in weakening of force. It is worth remembering the maximum operating temperature for a given model.
Lifting capacity was assessed with the use of a steel plate with a smooth surface of optimal thickness (min. 20 mm), under vertically applied force, however under attempts to slide the magnet the lifting capacity is smaller. Additionally, even a slight gap between the magnet and the plate reduces the lifting capacity.
Precautions when working with NdFeB magnets
Keep away from children
Strictly keep magnets out of reach of children. Choking hazard is significant, and the effects of magnets clamping inside the body are life-threatening.
Conscious usage
Be careful. Rare earth magnets attract from a distance and connect with huge force, often faster than you can move away.
Crushing risk
Watch your fingers. Two large magnets will join instantly with a force of massive weight, crushing everything in their path. Be careful!
Maximum temperature
Control the heat. Exposing the magnet above 80 degrees Celsius will destroy its magnetic structure and strength.
Warning for allergy sufferers
Nickel alert: The Ni-Cu-Ni coating consists of nickel. If an allergic reaction occurs, cease working with magnets and use protective gear.
Threat to electronics
Data protection: Strong magnets can damage data carriers and delicate electronics (pacemakers, medical aids, timepieces).
Medical implants
People with a ICD must keep an absolute distance from magnets. The magnetism can stop the functioning of the life-saving device.
Material brittleness
Watch out for shards. Magnets can fracture upon uncontrolled impact, ejecting sharp fragments into the air. Wear goggles.
Impact on smartphones
Remember: rare earth magnets produce a field that confuses sensitive sensors. Maintain a safe distance from your mobile, device, and GPS.
Flammability
Combustion risk: Neodymium dust is highly flammable. Do not process magnets in home conditions as this may cause fire.
