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SM 32x125 [2xM8] / N42 - magnetic separator
magnetic separator
Catalog no 130352
GTIN/EAN: 5906301813002
Diameter Ø
32 mm [±1 mm]
Height
125 mm [±1 mm]
Weight
670 g
Magnetic Flux
~ 8 000 Gauss [±5%]
381.30 ZŁ with VAT / pcs + price for transport
310.00 ZŁ net + 23% VAT / pcs
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Physical properties - SM 32x125 [2xM8] / N42 - magnetic separator
Specification / characteristics - SM 32x125 [2xM8] / N42 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130352 |
| GTIN/EAN | 5906301813002 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 32 mm [±1 mm] |
| Height | 125 mm [±1 mm] |
| Weight | 670 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 000 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| Polarity | circumferential - 4 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 32x125 [2xM8] / N42
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 32 | mm |
| Total length | 125 | mm (L) |
| Active length | 89 | mm |
| Section count | 3 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~764 | g |
| Active area | 89 | 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 (3 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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Pros as well as cons of Nd2Fe14B magnets.
Strengths
- They do not lose strength, even after approximately ten years – the drop in strength is only ~1% (based on measurements),
- They are resistant to demagnetization induced by presence of other magnetic fields,
- By applying a smooth coating of gold, the element has an proper look,
- Magnets are distinguished by exceptionally strong magnetic induction on the active area,
- Neodymium magnets are characterized by very high magnetic induction on the magnet surface and are able to act (depending on the form) even at a temperature of 230°C or more...
- Possibility of precise machining and modifying to individual applications,
- Key role in future technologies – they serve a role in HDD drives, motor assemblies, precision medical tools, also other advanced devices.
- Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications
Limitations
- Brittleness is one of their disadvantages. Upon strong impact they can fracture. We recommend keeping them in a strong case, which not only secures them against impacts but also increases their durability
- When exposed to high temperature, neodymium magnets suffer a drop in power. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size and shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
- Magnets exposed to a humid environment can corrode. Therefore while using outdoors, we suggest using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
- Due to limitations in producing nuts and complicated shapes in magnets, we propose using a housing - magnetic mechanism.
- Health risk related to microscopic parts of magnets can be dangerous, if swallowed, which becomes key in the context of child health protection. Additionally, small elements of these devices are able to disrupt the diagnostic process medical in case of swallowing.
- With budget limitations the cost of neodymium magnets can be a barrier,
Holding force characteristics
Magnetic strength at its maximum – what it depends on?
- using a sheet made of mild steel, functioning as a ideal flux conductor
- possessing a massiveness of min. 10 mm to ensure full flux closure
- characterized by smoothness
- under conditions of ideal adhesion (surface-to-surface)
- for force applied at a right angle (pull-off, not shear)
- in stable room temperature
What influences lifting capacity in practice
- Clearance – existence of foreign body (paint, dirt, gap) interrupts the magnetic circuit, which reduces power rapidly (even by 50% at 0.5 mm).
- Angle of force application – highest force is reached only during pulling at a 90° angle. The force required to slide of the magnet along the surface is standardly several times lower (approx. 1/5 of the lifting capacity).
- Element thickness – for full efficiency, the steel must be adequately massive. Thin sheet limits the attraction force (the magnet "punches through" it).
- Chemical composition of the base – low-carbon steel attracts best. Alloy admixtures decrease magnetic properties and lifting capacity.
- Surface finish – full contact is possible only on polished steel. Any scratches and bumps reduce the real contact area, weakening the magnet.
- Temperature influence – hot environment reduces pulling force. Exceeding the limit temperature can permanently damage the magnet.
Lifting capacity testing was conducted on a smooth plate of suitable thickness, under a perpendicular pulling force, whereas under attempts to slide the magnet the lifting capacity is smaller. Additionally, even a slight gap between the magnet’s surface and the plate decreases the load capacity.
Precautions when working with neodymium magnets
Power loss in heat
Watch the temperature. Heating the magnet above 80 degrees Celsius will destroy its properties and pulling force.
Allergic reactions
Certain individuals have a sensitization to nickel, which is the common plating for neodymium magnets. Extended handling may cause a rash. It is best to use protective gloves.
Protective goggles
Despite metallic appearance, the material is delicate and not impact-resistant. Avoid impacts, as the magnet may shatter into sharp, dangerous pieces.
Safe operation
Exercise caution. Rare earth magnets attract from a distance and snap with massive power, often faster than you can react.
Life threat
Medical warning: Strong magnets can deactivate heart devices and defibrillators. Stay away if you have electronic implants.
Data carriers
Device Safety: Strong magnets can ruin payment cards and sensitive devices (heart implants, hearing aids, mechanical watches).
Machining danger
Dust produced during grinding of magnets is self-igniting. Do not drill into magnets without proper cooling and knowledge.
Compass and GPS
An intense magnetic field disrupts the operation of compasses in phones and GPS navigation. Maintain magnets near a smartphone to prevent breaking the sensors.
Adults only
Adult use only. Tiny parts can be swallowed, leading to intestinal necrosis. Keep away from children and animals.
Pinching danger
Pinching hazard: The pulling power is so great that it can cause blood blisters, pinching, and even bone fractures. Protective gloves are recommended.
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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