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SM 32x425 [2xM8] / N42 - magnetic separator
magnetic separator
Catalog no 130380
GTIN/EAN: 5906301813286
Diameter Ø
32 mm [±1 mm]
Height
425 mm [±1 mm]
Weight
2280 g
Magnetic Flux
~ 8 000 Gauss [±5%]
1414.50 ZŁ with VAT / pcs + price for transport
1150.00 ZŁ net + 23% VAT / pcs
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Technical parameters - SM 32x425 [2xM8] / N42 - magnetic separator
Specification / characteristics - SM 32x425 [2xM8] / N42 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130380 |
| GTIN/EAN | 5906301813286 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 32 mm [±1 mm] |
| Height | 425 mm [±1 mm] |
| Weight | 2280 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 000 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| Polarity | circumferential - 16 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 32x425 [2xM8] / N42
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 32 | mm |
| Total length | 425 | mm (L) |
| Active length | 389 | mm |
| Section count | 16 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~2598 | g |
| Active area | 391 | 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 (16 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% |
Ecology and recycling (GPSR)
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
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Strengths as well as weaknesses of Nd2Fe14B magnets.
Advantages
- They retain full power for around 10 years – the loss is just ~1% (based on simulations),
- They are extremely resistant to demagnetization induced by external disturbances,
- Thanks to the reflective finish, the plating of Ni-Cu-Ni, gold, or silver-plated gives an visually attractive appearance,
- The surface of neodymium magnets generates a powerful magnetic field – this is one of their assets,
- 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 modularity in designing and the ability to adapt to complex applications,
- Wide application in future technologies – they are used in data components, motor assemblies, medical devices, as well as technologically advanced constructions.
- Thanks to concentrated force, small magnets offer high operating force, with minimal size,
Limitations
- They are fragile upon too strong impacts. To avoid cracks, it is worth securing magnets in special housings. Such protection not only shields the magnet but also increases its resistance to damage
- When exposed to high temperature, neodymium magnets experience a drop in strength. Often, when the temperature exceeds 80°C, their power decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
- Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material resistant to moisture, in case of application outdoors
- We recommend cover - magnetic mount, due to difficulties in producing nuts inside the magnet and complicated forms.
- Potential hazard related to microscopic parts of magnets are risky, when accidentally swallowed, which gains importance in the context of child safety. It is also worth noting that small elements of these magnets are able to be problematic in diagnostics medical after entering the body.
- Due to complex production process, their price is relatively high,
Pull force analysis
Maximum holding power of the magnet – what contributes to it?
- with the application of a sheet made of low-carbon steel, guaranteeing full magnetic saturation
- possessing a thickness of at least 10 mm to ensure full flux closure
- characterized by smoothness
- with zero gap (without impurities)
- for force applied at a right angle (in the magnet axis)
- at ambient temperature room level
Lifting capacity in practice – influencing factors
- Clearance – existence of any layer (rust, dirt, gap) acts as an insulator, which reduces capacity rapidly (even by 50% at 0.5 mm).
- Force direction – remember that the magnet has greatest strength perpendicularly. Under sliding down, the holding force drops significantly, often to levels of 20-30% of the maximum value.
- Base massiveness – insufficiently thick steel causes magnetic saturation, causing part of the flux to be escaped to the other side.
- Metal type – not every steel attracts identically. Alloy additives worsen the interaction with the magnet.
- Smoothness – ideal contact is obtained only on smooth steel. Any scratches and bumps reduce the real contact area, weakening the magnet.
- Thermal factor – high temperature reduces magnetic field. Too high temperature can permanently demagnetize the magnet.
Lifting capacity testing was conducted on plates with a smooth surface of suitable thickness, under a perpendicular pulling force, in contrast under attempts to slide the magnet the load capacity is reduced by as much as fivefold. Additionally, even a slight gap between the magnet and the plate lowers the load capacity.
Precautions when working with neodymium magnets
Do not give to children
Strictly keep magnets out of reach of children. Ingestion danger is high, and the effects of magnets connecting inside the body are tragic.
Phone sensors
Remember: neodymium magnets produce a field that disrupts sensitive sensors. Maintain a safe distance from your mobile, tablet, and GPS.
Shattering risk
Protect your eyes. Magnets can fracture upon uncontrolled impact, launching sharp fragments into the air. Eye protection is mandatory.
Permanent damage
Do not overheat. NdFeB magnets are sensitive to heat. If you require operation above 80°C, ask us about special high-temperature series (H, SH, UH).
Allergic reactions
Some people experience a contact allergy to Ni, which is the standard coating for NdFeB magnets. Frequent touching may cause dermatitis. We strongly advise wear protective gloves.
Pinching danger
Large magnets can break fingers in a fraction of a second. Never place your hand between two strong magnets.
Danger to pacemakers
People with a pacemaker have to maintain an safe separation from magnets. The magnetism can stop the operation of the life-saving device.
Handling guide
Be careful. Neodymium magnets act from a distance and snap with huge force, often faster than you can react.
Fire risk
Combustion risk: Neodymium dust is explosive. Do not process magnets without safety gear as this risks ignition.
Keep away from computers
Data protection: Strong magnets can ruin data carriers and delicate electronics (heart implants, medical aids, timepieces).
Tabela kosztu i czasu dostawy
Płatność przed wysyłką:
GLS kurier
Przesyłka będzie u Ciebie za 2-3 dni
14.99 ZŁ
InPost Paczkomaty 24/7
Przesyłka będzie u Ciebie za 1-2 dni
12.30 ZŁ
Płatność przy odbiorze (pobranie):
GLS kurier
Przesyłka będzie u Ciebie za 1-2 dni
23.00 ZŁ
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