SM 32x375 [2xM8] / N42 - magnetic separator
magnetic separator
Catalog no 130379
GTIN/EAN: 5906301813279
Diameter Ø
32 mm [±1 mm]
Height
375 mm [±1 mm]
Weight
2010 g
Magnetic Flux
~ 8 000 Gauss [±5%]
1119.30 ZŁ with VAT / pcs + price for transport
910.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Technical - SM 32x375 [2xM8] / N42 - magnetic separator
Specification / characteristics - SM 32x375 [2xM8] / N42 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130379 |
| GTIN/EAN | 5906301813279 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 32 mm [±1 mm] |
| Height | 375 mm [±1 mm] |
| Weight | 2010 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 000 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| Polarity | circumferential - 14 poles |
| Casing Tube Thickness | 1 mm |
| Manufacturing Tolerance | ±1 mm |
Magnetic properties of material N42
| properties | values | units |
|---|---|---|
| remenance Br [min. - max.] ? | 12.9-13.2 | kGs |
| remenance Br [min. - max.] ? | 1290-1320 | mT |
| coercivity bHc ? | 10.8-12.0 | kOe |
| coercivity bHc ? | 860-955 | kA/m |
| actual internal force iHc | ≥ 12 | kOe |
| actual internal force iHc | ≥ 955 | kA/m |
| energy density [min. - max.] ? | 40-42 | BH max MGOe |
| energy density [min. - max.] ? | 318-334 | 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 32x375 [2xM8] / N42
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 25 | mm |
| Total Length | 150 | mm (L) |
| Active Length | 114 | mm |
| Dead Zone | 36 | mm (2x 18mm Starter) |
| Weight (Est.) | ~560 | g |
| Active Area | 90 | cm² (Area) |
| Housing Material | AISI 304 | 1.4301 (Inox) |
| Surface Finish | Ra < 0.8 µm | Polished |
| Max. Temperature | ≤ 80°C | Standard |
| Force (Calculated) | 10.6 | kg (Theor.) |
| Induction (Surface) | ~6 500 | Gauss (Max) |
Chart 2: Magnetic Field Profile
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 |
Other offers
Advantages and disadvantages of Nd2Fe14B magnets.
Pros
- Their power is durable, and after approximately 10 years it decreases only by ~1% (according to research),
- They possess excellent resistance to magnetic field loss as a result of opposing magnetic fields,
- The use of an elegant layer of noble metals (nickel, gold, silver) causes the element to present itself better,
- The surface of neodymium magnets generates a powerful magnetic field – this is a key feature,
- Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
- Thanks to freedom in shaping and the ability to customize to individual projects,
- Versatile presence in future technologies – they find application in magnetic memories, motor assemblies, diagnostic systems, also multitasking production systems.
- Relatively small size with high pulling force – neodymium magnets offer high power in small dimensions, which enables their usage in small systems
Disadvantages
- They are fragile upon heavy impacts. To avoid cracks, it is worth securing magnets in a protective case. Such protection not only shields the magnet but also increases its resistance to damage
- Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of strength (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, when using outdoors
- Due to limitations in producing threads and complex shapes in magnets, we recommend using casing - magnetic mechanism.
- Possible danger to health – tiny shards of magnets pose a threat, if swallowed, which is particularly important in the context of child health protection. It is also worth noting that small components of these devices are able to be problematic in diagnostics medical after entering the body.
- With mass production the cost of neodymium magnets is a challenge,
Holding force characteristics
Detachment force of the magnet in optimal conditions – what it depends on?
- using a base made of low-carbon steel, serving as a circuit closing element
- whose transverse dimension reaches at least 10 mm
- with an polished touching surface
- without any air gap between the magnet and steel
- for force acting at a right angle (in the magnet axis)
- at temperature approx. 20 degrees Celsius
Determinants of practical lifting force of a magnet
- Distance – existence of any layer (paint, tape, gap) interrupts the magnetic circuit, which lowers power rapidly (even by 50% at 0.5 mm).
- Loading method – catalog parameter refers to pulling vertically. When slipping, the magnet exhibits much less (often approx. 20-30% of nominal force).
- Base massiveness – too thin steel causes magnetic saturation, causing part of the power to be wasted into the air.
- Material type – ideal substrate is pure iron steel. Hardened steels may generate lower lifting capacity.
- Plate texture – smooth surfaces ensure maximum contact, which improves force. Rough surfaces weaken the grip.
- Temperature – heating the magnet causes a temporary drop of induction. It is worth remembering the thermal limit for a given model.
Lifting capacity testing was carried out on a smooth plate of optimal thickness, under perpendicular forces, whereas under parallel forces the lifting capacity is smaller. Moreover, even a small distance between the magnet and the plate lowers the load capacity.
Warnings
Choking Hazard
These products are not intended for children. Eating several magnets may result in them attracting across intestines, which poses a severe health hazard and requires urgent medical intervention.
ICD Warning
Medical warning: Neodymium magnets can turn off pacemakers and defibrillators. Do not approach if you have medical devices.
Crushing risk
Danger of trauma: The pulling power is so great that it can cause hematomas, crushing, and even bone fractures. Protective gloves are recommended.
Metal Allergy
A percentage of the population experience a sensitization to nickel, which is the standard coating for neodymium magnets. Prolonged contact may cause a rash. We suggest wear safety gloves.
Do not overheat magnets
Control the heat. Exposing the magnet above 80 degrees Celsius will ruin its properties and strength.
Precision electronics
An intense magnetic field interferes with the operation of magnetometers in phones and navigation systems. Do not bring magnets near a device to prevent breaking the sensors.
Respect the power
Be careful. Rare earth magnets act from a long distance and connect with massive power, often quicker than you can react.
Magnetic media
Intense magnetic fields can erase data on payment cards, HDDs, and other magnetic media. Keep a distance of at least 10 cm.
Eye protection
Despite metallic appearance, the material is brittle and not impact-resistant. Do not hit, as the magnet may shatter into sharp, dangerous pieces.
Fire warning
Powder created during machining of magnets is combustible. Do not drill into magnets unless you are an expert.
