SM 32x475 [2xM8] / N52 - magnetic separator
magnetic separator
Catalog no 130466
GTIN/EAN: 5906301813378
Diameter Ø
32 mm [±1 mm]
Height
475 mm [±1 mm]
Weight
2630 g
Magnetic Flux
~ 10 000 Gauss [±5%]
1488.30 ZŁ with VAT / pcs + price for transport
1210.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Physical properties - SM 32x475 [2xM8] / N52 - magnetic separator
Specification / characteristics - SM 32x475 [2xM8] / N52 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130466 |
| GTIN/EAN | 5906301813378 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 32 mm [±1 mm] |
| Height | 475 mm [±1 mm] |
| Weight | 2630 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 10 000 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| Polarity | circumferential - 18 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 32x475 [2xM8] / N52
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 32 | mm |
| Total length | 475 | mm (L) |
| Active length | 439 | mm |
| Section count | 19 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~2903 | g |
| Active area | 441 | 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 (19 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% |
Sustainability
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
Other deals
Pros as well as cons of rare earth magnets.
Strengths
- They have constant strength, and over more than ten years their attraction force decreases symbolically – ~1% (according to theory),
- Magnets effectively defend themselves against loss of magnetization caused by ambient magnetic noise,
- Thanks to the shimmering finish, the plating of Ni-Cu-Ni, gold-plated, or silver gives an clean appearance,
- The surface of neodymium magnets generates a strong magnetic field – this is a distinguishing feature,
- Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the shape) even at high temperatures reaching 230°C or more...
- Thanks to the option of flexible molding and customization to specialized needs, NdFeB magnets can be modeled in a wide range of shapes and sizes, which makes them more universal,
- Key role in modern industrial fields – they are used in magnetic memories, electric motors, diagnostic systems, as well as complex engineering applications.
- Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications
Cons
- At strong impacts they can crack, therefore we advise placing them in steel cases. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
- When exposed to high temperature, neodymium magnets experience a drop in power. Often, when the temperature exceeds 80°C, their power decreases (depending on the size and shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
- When exposed to humidity, magnets usually rust. To use them in conditions outside, it is recommended to use protective magnets, such as those in rubber or plastics, which secure oxidation as well as corrosion.
- We recommend cover - magnetic holder, due to difficulties in producing threads inside the magnet and complex forms.
- Health risk related to microscopic parts of magnets can be dangerous, in case of ingestion, which becomes key in the aspect of protecting the youngest. It is also worth noting that small elements of these devices 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 hinders application in large quantities
Lifting parameters
Highest magnetic holding force – what it depends on?
- using a sheet made of low-carbon steel, acting as a circuit closing element
- possessing a massiveness of min. 10 mm to ensure full flux closure
- with a surface cleaned and smooth
- with zero gap (no coatings)
- for force acting at a right angle (in the magnet axis)
- at room temperature
Lifting capacity in practice – influencing factors
- Space between surfaces – even a fraction of a millimeter of separation (caused e.g. by veneer or unevenness) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
- Loading method – declared lifting capacity refers to detachment vertically. When attempting to slide, the magnet exhibits much less (typically approx. 20-30% of nominal force).
- Substrate thickness – for full efficiency, the steel must be sufficiently thick. Thin sheet limits the attraction force (the magnet "punches through" it).
- Steel grade – the best choice is high-permeability steel. Cast iron may have worse magnetic properties.
- Plate texture – smooth surfaces ensure maximum contact, which increases field saturation. Uneven metal weaken the grip.
- Thermal environment – temperature increase results in weakening of induction. It is worth remembering the thermal limit for a given model.
Lifting capacity was determined with the use of a smooth steel plate of suitable thickness (min. 20 mm), under perpendicular detachment force, in contrast under attempts to slide the magnet the load capacity is reduced by as much as 75%. In addition, even a small distance between the magnet and the plate reduces the lifting capacity.
H&S for magnets
Immense force
Before use, read the rules. Sudden snapping can destroy the magnet or injure your hand. Be predictive.
Swallowing risk
Neodymium magnets are not intended for children. Eating multiple magnets may result in them connecting inside the digestive tract, which constitutes a direct threat to life and requires immediate surgery.
Threat to electronics
Avoid bringing magnets near a wallet, laptop, or TV. The magnetism can permanently damage these devices and wipe information from cards.
Finger safety
Big blocks can smash fingers in a fraction of a second. Under no circumstances put your hand betwixt two attracting surfaces.
Thermal limits
Do not overheat. Neodymium magnets are susceptible to temperature. If you need resistance above 80°C, inquire about special high-temperature series (H, SH, UH).
GPS and phone interference
A powerful magnetic field negatively affects the operation of compasses in smartphones and navigation systems. Maintain magnets close to a smartphone to prevent damaging the sensors.
Magnets are brittle
Watch out for shards. Magnets can explode upon uncontrolled impact, launching shards into the air. Wear goggles.
Danger to pacemakers
Patients with a ICD should keep an safe separation from magnets. The magnetism can stop the functioning of the life-saving device.
Machining danger
Dust produced during machining of magnets is self-igniting. Do not drill into magnets without proper cooling and knowledge.
Avoid contact if allergic
Warning for allergy sufferers: The nickel-copper-nickel coating contains nickel. If an allergic reaction appears, immediately stop working with magnets and use protective gear.
