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SM 25x125 [2xM8] / N52 - magnetic separator
magnetic separator
Catalog no 130367
GTIN/EAN: 5906301813156
Diameter Ø
25 mm [±1 mm]
Height
125 mm [±1 mm]
Weight
460 g
Magnetic Flux
~ 8 500 Gauss [±5%]
418.20 ZŁ with VAT / pcs + price for transport
340.00 ZŁ net + 23% VAT / pcs
320.00 ZŁ net was the lowest price in the last 30 days
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Technical details - SM 25x125 [2xM8] / N52 - magnetic separator
Specification / characteristics - SM 25x125 [2xM8] / N52 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130367 |
| GTIN/EAN | 5906301813156 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 25 mm [±1 mm] |
| Height | 125 mm [±1 mm] |
| Weight | 460 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 500 Gauss [±5%] |
| Size/Mount Quantity | M8x2 |
| Polarity | circumferential - 4 poles |
| Casing Tube Thickness | 1 mm |
| Manufacturing Tolerance | ±1 mm |
Magnetic properties of material N52
| properties | values | units |
|---|---|---|
| remenance Br [min. - max.] ? | 14.2-14.7 | kGs |
| remenance Br [min. - max.] ? | 1420-1470 | mT |
| coercivity bHc ? | 10.8-12.5 | kOe |
| coercivity bHc ? | 860-995 | kA/m |
| actual internal force iHc | ≥ 12 | kOe |
| actual internal force iHc | ≥ 955 | kA/m |
| energy density [min. - max.] ? | 48-53 | BH max MGOe |
| energy density [min. - max.] ? | 380-422 | 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 25x125 [2xM8] / N52
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 25 | mm |
| Total length | 125 | mm (L) |
| Active length | 89 | mm |
| Section count | 3 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~466 | g |
| Active area | 70 | 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) | 18.1 | kg (theor.) |
| Induction (surface) | ~8 500 | Gauss (Max) |
Chart 2: Field profile (3 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% |
Environmental data
| 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 neodymium magnets.
Strengths
- They have constant strength, and over more than ten years their performance decreases symbolically – ~1% (according to theory),
- They do not lose their magnetic properties even under strong external field,
- A magnet with a metallic silver surface looks better,
- Magnetic induction on the working layer of the magnet turns out to be exceptional,
- Thanks to resistance to high temperature, they are capable of working (depending on the shape) even at temperatures up to 230°C and higher...
- In view of the option of precise shaping and customization to custom solutions, neodymium magnets can be produced in a broad palette of geometric configurations, which expands the range of possible applications,
- Fundamental importance in electronics industry – they are commonly used in hard drives, electromotive mechanisms, medical devices, also modern systems.
- Thanks to concentrated force, small magnets offer high operating force, with minimal size,
Limitations
- At strong impacts they can crack, therefore we recommend placing them in steel cases. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
- NdFeB magnets lose force when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop 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 very resistant to heat
- Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material stable to moisture, when using outdoors
- Limited possibility of producing nuts in the magnet and complicated forms - preferred is a housing - mounting mechanism.
- Potential hazard related to microscopic parts of magnets can be dangerous, in case of ingestion, which becomes key in the aspect of protecting the youngest. Furthermore, tiny parts of these products are able to disrupt the diagnostic process medical after entering the body.
- Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications
Pull force analysis
Best holding force of the magnet in ideal parameters – what contributes to it?
- with the application of a sheet made of low-carbon steel, guaranteeing full magnetic saturation
- whose thickness reaches at least 10 mm
- characterized by lack of roughness
- under conditions of no distance (metal-to-metal)
- during pulling in a direction perpendicular to the mounting surface
- at room temperature
Determinants of practical lifting force of a magnet
- Gap (between the magnet and the metal), as even a tiny clearance (e.g. 0.5 mm) can cause a drastic drop in lifting capacity by up to 50% (this also applies to paint, corrosion or dirt).
- Load vector – maximum parameter is available only during pulling at a 90° angle. The shear force of the magnet along the plate is typically several times smaller (approx. 1/5 of the lifting capacity).
- Element thickness – for full efficiency, the steel must be adequately massive. Paper-thin metal limits the attraction force (the magnet "punches through" it).
- Plate material – low-carbon steel gives the best results. Alloy admixtures lower magnetic properties and lifting capacity.
- Surface structure – the more even the surface, the larger the contact zone and stronger the hold. Unevenness creates an air distance.
- Thermal conditions – neodymium magnets have a negative temperature coefficient. When it is hot they are weaker, and at low temperatures gain strength (up to a certain limit).
Holding force was measured on the plate surface of 20 mm thickness, when a perpendicular force was applied, in contrast under shearing force the load capacity is reduced by as much as 5 times. Moreover, even a slight gap between the magnet and the plate lowers the lifting capacity.
Safe handling of neodymium magnets
Magnetic media
Device Safety: Neodymium magnets can ruin data carriers and delicate electronics (heart implants, hearing aids, timepieces).
Dust is flammable
Drilling and cutting of NdFeB material poses a fire hazard. Magnetic powder oxidizes rapidly with oxygen and is hard to extinguish.
Physical harm
Risk of injury: The attraction force is so great that it can cause blood blisters, pinching, and broken bones. Use thick gloves.
Warning for heart patients
Warning for patients: Powerful magnets disrupt electronics. Keep minimum 30 cm distance or ask another person to work with the magnets.
Safe operation
Handle with care. Neodymium magnets attract from a distance and connect with massive power, often faster than you can move away.
Keep away from children
Product intended for adults. Tiny parts can be swallowed, causing intestinal necrosis. Store away from children and animals.
Impact on smartphones
Remember: rare earth magnets produce a field that interferes with sensitive sensors. Keep a separation from your mobile, tablet, and GPS.
Sensitization to coating
Allergy Notice: The nickel-copper-nickel coating consists of nickel. If skin irritation appears, immediately stop handling magnets and use protective gear.
Demagnetization risk
Control the heat. Exposing the magnet to high heat will destroy its magnetic structure and pulling force.
Shattering risk
NdFeB magnets are ceramic materials, which means they are fragile like glass. Impact of two magnets leads to them breaking into small pieces.
Tabela kosztu i czasu dostawy
Płatność przed wysyłką:
GLS kurier
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14.99 ZŁ
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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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