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SM 32x400 [2xM8] / N42 - magnetic separator
magnetic separator
Catalog no 130302
GTIN/EAN: 5906301812951
- Diameter Ø
- 32 mm [±1 mm]
- Height
- 400 mm [±1 mm]
- Weight
- 2145 g
- Magnetic Flux
- ~ 8 000 Gauss [±5%]
1340.70 zł with VAT / pcs + price for transport
1090.00 zł net + 23% VAT / pcs
bulk discounts:
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Lifting power and form of a magnet can be estimated on our
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Product card - SM 32x400 [2xM8] / N42 - magnetic separator
Specification / characteristics - SM 32x400 [2xM8] / N42 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130302 |
| GTIN/EAN | 5906301812951 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 32 mm [±1 mm] |
| Height | 400 mm [±1 mm] |
| Weight | 2145 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 000 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| Polarity | circumferential - 15 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 32x400 [2xM8] / N42
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 32 | mm |
| Total length | 400 | mm (L) |
| Active length | 364 | mm |
| Section count | 15 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~2445 | g |
| Active area | 366 | 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 (15 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% |
Sustainability
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
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Advantages and disadvantages of rare earth magnets.
Pros
- They retain magnetic properties for nearly ten years – the drop is just ~1% (based on simulations),
- Magnets perfectly defend themselves against demagnetization caused by external fields,
- In other words, due to the aesthetic layer of nickel, the element gains visual value,
- Magnets exhibit huge magnetic induction on the active area,
- Thanks to resistance to high temperature, they are capable of working (depending on the shape) even at temperatures up to 230°C and higher...
- Possibility of individual forming as well as optimizing to individual conditions,
- Fundamental importance in electronics industry – they are commonly used in computer drives, brushless drives, diagnostic systems, and other advanced devices.
- Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications
Cons
- To avoid cracks upon strong impacts, we recommend using special steel housings. Such a solution secures the magnet and simultaneously increases its durability.
- We warn that neodymium magnets can reduce their power at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 230°C.
- They rust in a humid environment - during use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
- Limited possibility of making nuts in the magnet and complicated shapes - recommended is cover - magnet mounting.
- Potential hazard related to microscopic parts of magnets can be dangerous, in case of ingestion, which is particularly important in the context of child health protection. Furthermore, tiny parts of these devices can complicate diagnosis medical after entering the body.
- Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications
Holding force characteristics
Magnetic strength at its maximum – what affects it?
- with the application of a yoke made of special test steel, ensuring maximum field concentration
- possessing a thickness of minimum 10 mm to ensure full flux closure
- characterized by lack of roughness
- under conditions of ideal adhesion (surface-to-surface)
- for force applied at a right angle (in the magnet axis)
- at conditions approx. 20°C
Magnet lifting force in use – key factors
- Gap between magnet and steel – even a fraction of a millimeter of separation (caused e.g. by veneer or unevenness) diminishes the magnet efficiency, often by half at just 0.5 mm.
- Force direction – declared lifting capacity refers to pulling vertically. When applying parallel force, the magnet exhibits much less (typically approx. 20-30% of maximum force).
- Base massiveness – too thin sheet does not close the flux, causing part of the flux to be lost to the other side.
- Steel type – mild steel gives the best results. Higher carbon content reduce magnetic properties and holding force.
- Surface condition – ground elements ensure maximum contact, which increases force. Uneven metal weaken the grip.
- Heat – NdFeB sinters have a negative temperature coefficient. At higher temperatures they lose power, and at low temperatures gain strength (up to a certain limit).
Lifting capacity testing was performed on a smooth plate of optimal thickness, under perpendicular forces, however under shearing force the lifting capacity is smaller. Additionally, even a minimal clearance between the magnet and the plate decreases the load capacity.
Precautions when working with neodymium magnets
Safe distance
Intense magnetic fields can erase data on payment cards, hard drives, and other magnetic media. Maintain a gap of min. 10 cm.
Flammability
Fire hazard: Neodymium dust is highly flammable. Avoid machining magnets without safety gear as this risks ignition.
Heat sensitivity
Standard neodymium magnets (N-type) lose power when the temperature surpasses 80°C. Damage is permanent.
Allergic reactions
Nickel alert: The Ni-Cu-Ni coating consists of nickel. If redness happens, cease working with magnets and wear gloves.
Beware of splinters
Despite metallic appearance, neodymium is delicate and cannot withstand shocks. Avoid impacts, as the magnet may shatter into sharp, dangerous pieces.
Serious injuries
Protect your hands. Two large magnets will snap together immediately with a force of several hundred kilograms, destroying everything in their path. Exercise extreme caution!
Powerful field
Use magnets consciously. Their immense force can surprise even experienced users. Stay alert and do not underestimate their force.
This is not a toy
Always store magnets out of reach of children. Choking hazard is significant, and the effects of magnets connecting inside the body are life-threatening.
Threat to navigation
Remember: neodymium magnets produce a field that disrupts precision electronics. Maintain a safe distance from your mobile, device, and GPS.
Danger to pacemakers
Life threat: Neodymium magnets can deactivate heart devices and defibrillators. Do not approach if you have electronic implants.
Tabela kosztu i czasu dostawy
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Płatność przy odbiorze (pobranie):
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Przesyłka będzie u Ciebie za 1-2 dni
23.00 ZŁ
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