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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Technical of the product - 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
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 |
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Strengths and weaknesses of rare earth magnets.
Advantages
- They virtually do not lose strength, because even after 10 years the performance loss is only ~1% (based on calculations),
- Magnets perfectly defend themselves against loss of magnetization caused by foreign field sources,
- Thanks to the shiny finish, the coating of nickel, gold-plated, or silver gives an professional appearance,
- Magnetic induction on the top side of the magnet is strong,
- Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can work (depending on the shape) even at a temperature of 230°C or more...
- Thanks to the ability of accurate forming and customization to unique solutions, magnetic components can be manufactured in a broad palette of shapes and sizes, which increases their versatility,
- Fundamental importance in innovative solutions – they are used in hard drives, electromotive mechanisms, medical equipment, also complex engineering applications.
- Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications
Weaknesses
- To avoid cracks under impact, we recommend using special steel holders. Such a solution protects the magnet and simultaneously improves its durability.
- We warn that neodymium magnets can lose their power at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 230°C.
- They oxidize in a humid environment - during use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
- We suggest cover - magnetic mount, due to difficulties in producing threads inside the magnet and complex shapes.
- Potential hazard to health – tiny shards of magnets pose a threat, in case of ingestion, which becomes key in the context of child safety. Furthermore, small elements of these magnets can complicate diagnosis medical when they are in the body.
- With mass production the cost of neodymium magnets is a challenge,
Lifting parameters
Maximum lifting force for a neodymium magnet – what affects it?
- on a base made of structural steel, effectively closing the magnetic flux
- with a cross-section of at least 10 mm
- with a surface perfectly flat
- with total lack of distance (no coatings)
- during detachment in a direction perpendicular to the plane
- at ambient temperature room level
Practical lifting capacity: influencing factors
- Space between surfaces – every millimeter of separation (caused e.g. by varnish or unevenness) drastically reduces the pulling force, often by half at just 0.5 mm.
- Direction of force – maximum parameter is reached only during perpendicular pulling. The resistance to sliding of the magnet along the plate is usually several times lower (approx. 1/5 of the lifting capacity).
- Metal thickness – thin material does not allow full use of the magnet. Magnetic flux penetrates through instead of converting into lifting capacity.
- Material type – ideal substrate is high-permeability steel. Cast iron may generate lower lifting capacity.
- Smoothness – ideal contact is obtained only on smooth steel. Rough texture reduce the real contact area, reducing force.
- Temperature – temperature increase results in weakening of force. Check the maximum operating temperature for a given model.
Holding force was checked on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, whereas under parallel forces the lifting capacity is smaller. Moreover, even a small distance between the magnet and the plate reduces the lifting capacity.
H&S for magnets
Pinching danger
Mind your fingers. Two large magnets will join instantly with a force of several hundred kilograms, destroying everything in their path. Be careful!
Magnetic media
Data protection: Neodymium magnets can damage data carriers and delicate electronics (heart implants, hearing aids, timepieces).
Allergy Warning
Nickel alert: The Ni-Cu-Ni coating contains nickel. If redness happens, immediately stop handling magnets and use protective gear.
Magnet fragility
Watch out for shards. Magnets can explode upon uncontrolled impact, ejecting shards into the air. Wear goggles.
Keep away from electronics
Navigation devices and smartphones are extremely sensitive to magnetism. Direct contact with a strong magnet can permanently damage the internal compass in your phone.
Medical implants
Health Alert: Neodymium magnets can deactivate pacemakers and defibrillators. Stay away if you have electronic implants.
Permanent damage
Standard neodymium magnets (N-type) undergo demagnetization when the temperature goes above 80°C. Damage is permanent.
Dust explosion hazard
Drilling and cutting of neodymium magnets poses a fire risk. Magnetic powder reacts violently with oxygen and is difficult to extinguish.
Caution required
Handle with care. Neodymium magnets attract from a long distance and snap with huge force, often faster than you can react.
Product not for children
These products are not suitable for play. Eating several magnets can lead to them attracting across intestines, which constitutes a severe health hazard and necessitates immediate surgery.
