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SM 25x200 [2xM8] / N52 - magnetic separator
magnetic separator
Catalog no 130364
GTIN/EAN: 5906301813125
Diameter Ø
25 mm [±1 mm]
Height
200 mm [±1 mm]
Weight
760 g
Magnetic Flux
~ 8 500 Gauss [±5%]
615.00 ZŁ with VAT / pcs + price for transport
500.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Parameters and shape of neodymium magnets can be calculated using our
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Technical - SM 25x200 [2xM8] / N52 - magnetic separator
Specification / characteristics - SM 25x200 [2xM8] / N52 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130364 |
| GTIN/EAN | 5906301813125 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 25 mm [±1 mm] |
| Height | 200 mm [±1 mm] |
| Weight | 760 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 500 Gauss [±5%] |
| Size/Mount Quantity | M8x2 |
| Polarity | circumferential - 7 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 25x200 [2xM8] / N52
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 25 | mm |
| Total length | 200 | mm (L) |
| Active length | 164 | mm |
| Section count | 7 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~746 | g |
| Active area | 129 | 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 (7 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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Advantages and disadvantages of rare earth magnets.
Pros
- They have unchanged lifting capacity, and over more than ten years their attraction force decreases symbolically – ~1% (in testing),
- They retain their magnetic properties even under close interference source,
- By covering with a shiny layer of silver, the element gains an modern look,
- Neodymium magnets generate maximum magnetic induction on a contact point, which ensures high operational effectiveness,
- Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
- Thanks to modularity in constructing and the ability to modify to client solutions,
- Universal use in high-tech industry – they serve a role in magnetic memories, motor assemblies, diagnostic systems, and complex engineering applications.
- Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in small dimensions, which enables their usage in miniature devices
Limitations
- Brittleness is one of their disadvantages. Upon strong impact they can fracture. We advise keeping them in a strong case, which not only secures them against impacts but also raises their durability
- Neodymium magnets demagnetize 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 extremely resistant to heat
- Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material immune to moisture, when using outdoors
- We recommend casing - magnetic holder, due to difficulties in creating threads inside the magnet and complicated forms.
- 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. It is also worth noting that small elements of these magnets are able to disrupt the diagnostic process medical after entering the body.
- With large orders the cost of neodymium magnets is economically unviable,
Pull force analysis
Maximum magnetic pulling force – what affects it?
- using a plate made of high-permeability steel, functioning as a circuit closing element
- whose transverse dimension reaches at least 10 mm
- with a plane free of scratches
- with zero gap (without impurities)
- under axial force vector (90-degree angle)
- in neutral thermal conditions
Lifting capacity in practice – influencing factors
- Clearance – existence of foreign body (rust, dirt, air) acts as an insulator, which lowers capacity rapidly (even by 50% at 0.5 mm).
- Loading method – declared lifting capacity refers to pulling vertically. When attempting to slide, the magnet holds much less (typically approx. 20-30% of maximum force).
- Substrate thickness – for full efficiency, the steel must be sufficiently thick. Paper-thin metal restricts the attraction force (the magnet "punches through" it).
- Chemical composition of the base – mild steel attracts best. Alloy admixtures reduce magnetic permeability and holding force.
- Smoothness – full contact is obtained only on polished steel. Any scratches and bumps reduce the real contact area, weakening the magnet.
- Temperature – heating the magnet results in weakening of induction. It is worth remembering the thermal limit for a given model.
Lifting capacity was determined by applying a smooth steel plate of optimal thickness (min. 20 mm), under vertically applied force, however under attempts to slide the magnet the lifting capacity is smaller. Moreover, even a minimal clearance between the magnet and the plate reduces the lifting capacity.
Warnings
Threat to navigation
A powerful magnetic field disrupts the operation of magnetometers in phones and GPS navigation. Keep magnets near a device to prevent breaking the sensors.
Permanent damage
Avoid heat. Neodymium magnets are sensitive to heat. If you need resistance above 80°C, inquire about HT versions (H, SH, UH).
Safe operation
Before starting, check safety instructions. Sudden snapping can destroy the magnet or hurt your hand. Think ahead.
Crushing risk
Watch your fingers. Two large magnets will join immediately with a force of massive weight, crushing anything in their path. Be careful!
Fragile material
Despite metallic appearance, neodymium is delicate and cannot withstand shocks. Avoid impacts, as the magnet may shatter into hazardous fragments.
Medical implants
Health Alert: Neodymium magnets can turn off heart devices and defibrillators. Stay away if you have electronic implants.
Swallowing risk
Only for adults. Small elements can be swallowed, leading to severe trauma. Keep out of reach of children and animals.
Threat to electronics
Data protection: Strong magnets can ruin payment cards and delicate electronics (pacemakers, medical aids, timepieces).
Flammability
Mechanical processing of neodymium magnets carries a risk of fire risk. Neodymium dust reacts violently with oxygen and is hard to extinguish.
Avoid contact if allergic
Nickel alert: The Ni-Cu-Ni coating consists of nickel. If redness occurs, immediately stop handling magnets and use protective gear.
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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