SM 32x500 [2xM8] / N42 - magnetic separator
magnetic separator
Catalog no 130374
GTIN/EAN: 5906301813224
Diameter Ø
32 mm [±1 mm]
Height
500 mm [±1 mm]
Weight
2670 g
Magnetic Flux
~ 8 000 Gauss [±5%]
1488.30 ZŁ with VAT / pcs + price for transport
1210.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Detailed specification - SM 32x500 [2xM8] / N42 - magnetic separator
Specification / characteristics - SM 32x500 [2xM8] / N42 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130374 |
| GTIN/EAN | 5906301813224 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 32 mm [±1 mm] |
| Height | 500 mm [±1 mm] |
| Weight | 2670 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 000 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| Polarity | circumferential - 19 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 32x500 [2xM8] / N42
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 32 | mm |
| Total length | 500 | mm (L) |
| Active length | 464 | mm |
| Section count | 20 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~3056 | g |
| Active area | 466 | 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) | 26.2 | kg (theor.) |
| Induction (surface) | ~8 000 | Gauss (Max) |
Chart 2: Field profile (20 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% |
Sustainability
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
Other deals
Strengths and weaknesses of neodymium magnets.
Benefits
- They retain attractive force for around ten years – the loss is just ~1% (according to analyses),
- They are extremely resistant to demagnetization induced by external magnetic fields,
- The use of an aesthetic layer of noble metals (nickel, gold, silver) causes the element to be more visually attractive,
- Neodymium magnets deliver maximum magnetic induction on a contact point, which allows for strong attraction,
- Through (adequate) combination of ingredients, they can achieve high thermal resistance, enabling action at temperatures reaching 230°C and above...
- Due to the potential of flexible molding and adaptation to unique needs, NdFeB magnets can be produced in a variety of shapes and sizes, which expands the range of possible applications,
- Huge importance in modern technologies – they are utilized in data components, electric drive systems, medical equipment, also modern systems.
- Relatively small size with high pulling force – neodymium magnets offer high power in small dimensions, which allows their use in miniature devices
Weaknesses
- They are fragile upon too strong impacts. To avoid cracks, it is worth securing magnets using a steel holder. Such protection not only shields the magnet but also improves its resistance to damage
- Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of power (a factor is the shape and 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
- Magnets exposed to a humid environment can corrode. Therefore during using outdoors, we suggest using water-impermeable magnets made of rubber, plastic or other material resistant to moisture
- We recommend a housing - magnetic mechanism, due to difficulties in producing nuts inside the magnet and complicated forms.
- Health risk resulting from small fragments of magnets pose a threat, in case of ingestion, which is particularly important in the aspect of protecting the youngest. Additionally, small components of these products can be problematic in diagnostics medical after entering the body.
- With large orders the cost of neodymium magnets is economically unviable,
Holding force characteristics
Breakaway strength of the magnet in ideal conditions – what contributes to it?
- with the application of a yoke made of special test steel, guaranteeing full magnetic saturation
- possessing a thickness of min. 10 mm to ensure full flux closure
- with a plane perfectly flat
- without any insulating layer between the magnet and steel
- under perpendicular force vector (90-degree angle)
- at conditions approx. 20°C
Key elements affecting lifting force
- Clearance – existence of any layer (paint, tape, gap) acts as an insulator, which reduces capacity rapidly (even by 50% at 0.5 mm).
- Pull-off angle – note that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops drastically, often to levels of 20-30% of the maximum value.
- Substrate thickness – to utilize 100% power, the steel must be adequately massive. Thin sheet limits the attraction force (the magnet "punches through" it).
- Metal type – different alloys reacts the same. Alloy additives worsen the attraction effect.
- Surface quality – the smoother and more polished the surface, the better the adhesion and higher the lifting capacity. Unevenness acts like micro-gaps.
- Thermal factor – hot environment reduces magnetic field. Exceeding the limit temperature can permanently demagnetize the magnet.
Lifting capacity testing was conducted on plates with a smooth surface of optimal thickness, under a perpendicular pulling force, whereas under parallel forces the lifting capacity is smaller. In addition, even a slight gap between the magnet and the plate lowers the lifting capacity.
Safe handling of neodymium magnets
Heat warning
Avoid heat. Neodymium magnets are sensitive to heat. If you require resistance above 80°C, look for HT versions (H, SH, UH).
Danger to pacemakers
Warning for patients: Powerful magnets disrupt electronics. Maintain at least 30 cm distance or request help to work with the magnets.
Data carriers
Device Safety: Strong magnets can damage data carriers and sensitive devices (heart implants, medical aids, timepieces).
Caution required
Before use, read the rules. Sudden snapping can break the magnet or injure your hand. Be predictive.
Flammability
Mechanical processing of NdFeB material carries a risk of fire hazard. Neodymium dust reacts violently with oxygen and is difficult to extinguish.
Keep away from children
Product intended for adults. Small elements can be swallowed, leading to intestinal necrosis. Store out of reach of children and animals.
Metal Allergy
Nickel alert: The nickel-copper-nickel coating consists of nickel. If redness occurs, immediately stop working with magnets and wear gloves.
Compass and GPS
An intense magnetic field disrupts the operation of compasses in smartphones and GPS navigation. Keep magnets close to a smartphone to avoid breaking the sensors.
Physical harm
Big blocks can smash fingers in a fraction of a second. Never place your hand between two attracting surfaces.
Shattering risk
Despite the nickel coating, neodymium is delicate and cannot withstand shocks. Do not hit, as the magnet may crumble into hazardous fragments.
